技术领域technical field
本发明涉及电力技术领域，具体涉及一种带接点动作保持的电接点压力表，特别是一种带接点动作保持的气体密度继电器。通过了很大的创新，具有保持机构及复位机构，可以实现电气设备燃弧超压报警保持功能。即当电气设备燃弧时，其压力过高时，能够超压报警。而当电气设备燃弧结束后，其压力正常时，其报警信号一直保持，可以让运行人员发现电气设备燃弧现象，及时处理燃弧现象的电气设备，保障电力安全运行。The invention relates to the field of electric power technology, in particular to an electric contact pressure gauge with contact action holding, in particular to a gas density relay with contact action holding. Through great innovation, it has a holding mechanism and a reset mechanism, which can realize the holding function of the electrical equipment arcing overpressure alarm. That is, when the electrical equipment arcs and its pressure is too high, an overpressure alarm can be issued. When the arcing of electrical equipment is over and the pressure is normal, the alarm signal will be maintained all the time, allowing the operator to discover the arcing phenomenon of electrical equipment, and deal with the electrical equipment in time to ensure the safe operation of electric power.
背景技术Background technique
目前，用来监测设备，特别是六氟化硫电气设备中的六氟化硫气体密度的六氟化硫气体密度继电器的信号机构(信号控制部分)一般采用的测压元件为巴登管，接点采用微动开关或磁助式电接点，应用在电气设备时，当电气设备燃弧时，其压力过高时，可以超压报警。而当电气设备燃弧结束后，其压力就会降低，恢复到正常时，这时其报警信号就会消失，运行人员不在现场时就不易发现，难以保障电力安全运行，所以迫切需要创新。即需要具有信号动作后的保持机构及复位机构，可以实现电气设备燃弧超压报警保持功能。当电气设备燃弧时，其压力过高时，能够超压报警。而当电气设备燃弧结束后，且其报警信号一直保持，方便让运行人员发现，保障电力安全运行。At present, the signal mechanism (signal control part) of the sulfur hexafluoride gas density relay used to monitor the equipment, especially the sulfur hexafluoride gas density in the sulfur hexafluoride electrical equipment, generally uses a Baden tube as the pressure measuring element. The contact adopts a micro switch or a magnetic-assisted electric contact. When it is applied to electrical equipment, when the electrical equipment is arced and the pressure is too high, an overpressure alarm can be issued. When the arcing of electrical equipment ends, its pressure will decrease and return to normal, then its alarm signal will disappear, and it will be difficult for operators to find out when they are not on site, and it is difficult to ensure safe operation of electric power. Therefore, innovation is urgently needed. That is, it is necessary to have a holding mechanism and a reset mechanism after the signal action, which can realize the holding function of the electrical equipment arcing overpressure alarm. When the electrical equipment arcs and its pressure is too high, it can alarm for overpressure. And when the arcing of the electrical equipment is over, and its alarm signal is kept, it is convenient for the operator to find out and ensure the safe operation of the electric power.
发明内容Contents of the invention
本发明提供一种带接点动作保持的电接点压力表，或者一种带接点动作保持的气体密度继电器，用于解决现有技术的电气设备燃弧超压报警保持功能。具有保持机构及复位机构，可以实现电气设备燃弧超压报警保持功能。当电气设备燃弧后，其压力过高时，能够超压报警。而其压力正常时，其报警信号一直保持，易于让运行人员发现，保障电力安全运行。The invention provides an electric contact pressure gauge with contact action holding, or a gas density relay with contact action holding, which is used to solve the arc burning overpressure alarm holding function of electrical equipment in the prior art. It has a holding mechanism and a reset mechanism, which can realize the holding function of the electrical equipment arcing overpressure alarm. When the pressure of electrical equipment is too high after arcing, it can alarm for overpressure. When the pressure is normal, the alarm signal is always maintained, which is easy for the operator to find out and ensures the safe operation of the power supply.
一种带接点动作保持的电接点压力表，包括电接点压力表的壳体、设置在该壳体内的测压元件、若干电接点压力表的信号接点、机芯、指针、刻度盘、接头，还包括信号动作后的保持机构。An electric contact pressure gauge with contact action maintenance, comprising a casing of the electric contact pressure gauge, a load measuring element arranged in the casing, signal contacts of several electric contact pressure gauges, a movement, a pointer, a dial, and a joint, A holding mechanism after the signal action is also included.
还包括信号动作后的保持机构及复位机构。It also includes a holding mechanism and a reset mechanism after the signal action.
所述信号接点采用微动开关或磁助式电接点。The signal contact adopts a micro switch or a magnetic-assisted electric contact.
还包含温度补偿元件，能够监测气体的密度。A temperature compensation element is also included to monitor the density of the gas.
所述微动开关包括动作臂。The micro switch includes an action arm.
所述磁助式电接点包括动作触头。The magnetic-assisted electric contact includes an action contact.
所述保持机构与需要信号保持的信号接点对应设置，当该信号动作后，无论压力或密度降低或增加，保持机构都能保持信号动作状态，只能通过复位机构才能使信号复位。The holding mechanism is set corresponding to the signal contact that needs to hold the signal. When the signal is activated, no matter whether the pressure or density decreases or increases, the holding mechanism can maintain the signal action state, and the signal can only be reset by the reset mechanism.
所述的保持机构为弹性件，当达到设置的压力或密度时，推动磁助式电接点的动作触头运动，使磁助式电接点的动作触头越过弹性件，即当该信号动作后，无论压力或密度降低或增加，弹性件都能保持磁助式电接点的动作触头处于信号动作状态。The holding mechanism is an elastic member. When the set pressure or density is reached, the action contact of the magnetic-assisted electric contact is pushed to move, so that the action contact of the magnetic-assist electric contact passes over the elastic member, that is, when the signal is activated , no matter the pressure or density decreases or increases, the elastic member can keep the action contact of the magnetic-assisted electric contact in the signal action state.
所述的保持机构为弹性件，当达到设置的压力或密度时，推动微动开关的动作臂运动，使微动开关的动作臂越过弹性件，即当该信号动作后，无论压力或密度降低或增加，弹性件都能保持微动开关的动作臂处于信号动作状态。The holding mechanism is an elastic member. When the set pressure or density is reached, the action arm of the micro switch is pushed to move, so that the action arm of the micro switch passes over the elastic member, that is, after the signal is activated, no matter the pressure or density decreases Or increase, the elastic member can keep the action arm of the micro switch in the signal action state.
所述保持机构包括弹簧和保持元件，当达到设置的压力或密度时，推动微动开关的动作臂运动，使微动开关的动作臂拉伸或压缩弹簧，使微动开关的动作臂越过保持元件，保持元件卡住微动开关的动作臂，即当该信号动作后，无论压力或密度降低或增加，保持元件都能保持微动开关的动作臂处于信号动作状态；The holding mechanism includes a spring and a holding element. When the set pressure or density is reached, the action arm of the micro switch is pushed to move, so that the action arm of the micro switch stretches or compresses the spring, and the action arm of the micro switch passes over the holding Component, the holding element clamps the action arm of the micro switch, that is, when the signal is activated, no matter whether the pressure or density decreases or increases, the holding element can keep the action arm of the micro switch in the signal action state;
或者，当达到设置的压力或密度时，推动磁助式电接点的动作触头运动，使磁助式电接点的动作触头拉伸或压缩弹簧，使磁助式电接点的动作触头越过保持元件，保持元件卡住磁助式电接点的动作触头，即当该信号动作后，无论压力或密度降低或增加，保持元件都能保持磁助式电接点的动作触头处于信号动作状态。Or, when the set pressure or density is reached, the action contact of the magnetic-assist electric contact is pushed to move, so that the action contact of the magnetic-assist electric contact stretches or compresses the spring, so that the action contact of the magnetic-assist electric contact passes over The holding element, the holding element clamps the action contact of the magnetic-assisted electric contact, that is, when the signal is activated, no matter whether the pressure or density decreases or increases, the holding element can keep the action contact of the magnetic-assisted electric contact in the signal action state .
当该信号动作后，无论压力或密度降低或增加，弹性件都能保持微动开关的动作臂或磁助式电接点的动作触头处于信号动作状态，只能通过复位机构才能使信号复位。When the signal is activated, no matter the pressure or density decreases or increases, the elastic member can keep the action arm of the micro switch or the action contact of the magnetic-assisted electric contact in the signal action state, and the signal can only be reset by the reset mechanism.
通过操作复位机构，使复位机构推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。By operating the reset mechanism, the reset mechanism pushes the holding mechanism away from the action arm of the micro switch or the action contact of the magnetic-assisted electric contact, and the action arm of the micro switch or the action contact of the magnetic-assisted electric contact returns to the normal state, so that Signal reset.
所述复位机构为旋转运动，旋转复位机构，使复位机构推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。The reset mechanism is a rotary motion, rotating the reset mechanism, so that the reset mechanism pushes the holding mechanism away from the action arm of the micro switch or the action contact of the magnetic-assisted electric contact, and the action of the action arm of the micro switch or the magnetic-assisted electric contact The contacts return to their normal state, resetting the signal.
所述复位机构为带操作柄的杆件，通过旋转操作柄，旋转复位机构的杆件，使复位机构的杆件推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。The reset mechanism is a rod with an operating handle. By rotating the operating handle, the rod of the reset mechanism is rotated, so that the rod of the reset mechanism pushes the holding mechanism away from the action arm of the micro switch or the action contact of the magnetic-assisted electric contact. , the action arm of the micro switch or the action contact of the magnetic-assisted electric contact returns to the normal state, so that the signal is reset.
所述复位机构为水平或垂直运动，按下或拔出复位机构，使复位机构推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。The reset mechanism is a horizontal or vertical movement, press or pull out the reset mechanism, so that the reset mechanism pushes the holding mechanism away from the action arm of the micro switch or the action contact of the magnetic-assisted electric contact, the action arm of the micro switch or the magnetic contact. The action contact of the auxiliary electric contact returns to the normal state, so that the signal is reset.
所述复位机构为一带操作柄的元件组成，通过按下或拔出操作柄，推动复位机构的元件，使复位机构的元件推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。The reset mechanism is composed of components with an operating handle. By pressing or pulling out the operating handle, the components of the reset mechanism are pushed, so that the components of the reset mechanism push the holding mechanism away from the action arm of the micro switch or the action of the magnetic-assisted electric contact. The contact, the action arm of the micro switch or the action contact of the magnetic-assisted electric contact return to the normal state, so that the signal is reset.
所述复位机构为垂直曲线运动，按下或拔出复位机构，使复位机构推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。The reset mechanism is a vertical curve movement, press or pull out the reset mechanism, so that the reset mechanism pushes the holding mechanism away from the action arm of the micro switch or the action contact of the magnetic-assisted electric contact, the action arm of the micro switch or the magnetic-assisted The action contact of the type electric contact returns to the normal state, so that the signal is reset.
所述复位机构为一带操作柄的元件组成，通过按下或拔出操作柄，推动复位机构的元件，使复位机构的元件推动保持机构远离微动开关的动作臂或磁助式电接点的动作触头，微动开关的动作臂或磁助式电接点的动作触头恢复正常状态，使信号复位。The reset mechanism is composed of components with an operating handle. By pressing or pulling out the operating handle, the components of the reset mechanism are pushed, so that the components of the reset mechanism push the holding mechanism away from the action arm of the micro switch or the action of the magnetic-assisted electric contact. The contact, the action arm of the micro switch or the action contact of the magnetic-assisted electric contact return to the normal state, so that the signal is reset.
所述复位机构还包括还原装置，操作复位机构后，还原装置能够使复位机构恢复原状。The resetting mechanism also includes a resetting device, which can restore the resetting mechanism to its original state after the resetting mechanism is operated.
所述还原装置为弹性元件，操作复位机构结束后，还原装置的弹性元件的弹力能够使复位机构恢复原状。The restoring device is an elastic element, and after the reset mechanism is operated, the elastic force of the elastic element of the restoring device can restore the restoring mechanism to its original state.
所述还原装置含有弹簧，操作复位机构结束后，还原装置的弹簧的弹力或拉力能够使复位机构恢复原状。The restoring device contains a spring, and after the reset mechanism is operated, the elastic or pulling force of the spring of the restoring device can restore the restoring mechanism to its original state.
所述测压元件为巴登管，或波纹管，或巴登管和波纹管组成。The pressure measuring element is a Baden tube, or a corrugated tube, or a Baden tube and a corrugated tube.
所述的微动开关包括动作臂，当该信号动作后，保持机构保持住动作臂，无论压力或密度降低或增加，保持机构都能保持信号动作状态，只能通过复位机构才能使信号复位；The micro switch includes an action arm. When the signal is activated, the holding mechanism holds the action arm. No matter the pressure or density decreases or increases, the holding mechanism can maintain the signal action state, and the signal can only be reset by the reset mechanism;
或者，所述的磁助式电接点的动作触头，当该信号动作后，保持机构保持住磁助式电接点的动作触头，无论压力或密度降低或增加，保持机构都能保持信号动作状态，只能通过复位机构才能使信号复位。Or, the moving contact of the magnetic-assisted electric contact, when the signal is activated, the holding mechanism holds the moving contact of the magnetic-assisted electric contact, and the holding mechanism can maintain the signal action no matter the pressure or density decreases or increases state, the signal can only be reset by the reset mechanism.
所述的动作臂为弹性件，当达到设置的压力或密度时，调节件推动微动开关的动作臂运动，使微动开关的动作臂越过保持机构，即当该信号动作后，无论压力或密度降低或增加，保持机构都能保持微动开关的动作臂处于信号动作状态。The action arm is an elastic member. When the set pressure or density is reached, the adjustment member pushes the action arm of the micro switch to move, so that the action arm of the micro switch passes over the holding mechanism, that is, after the signal is activated, no matter the pressure or When the density is reduced or increased, the holding mechanism can keep the action arm of the micro switch in the signal action state.
复位机构与壳体是密封的，在操作复位机构时，壳体内的密封气室始终处于密封状态。The reset mechanism is sealed with the housing, and when the reset mechanism is operated, the sealed air chamber in the housing is always in a sealed state.
所述复位机构通过密封圈与壳体实现密封的。The reset mechanism is sealed with the housing through the sealing ring.
所述温度补偿元件为双金属片或充有补偿气体的补偿器件。The temperature compensation element is a bimetal sheet or a compensation device filled with compensation gas.
所述的保持机构为磁性元件，当达到设置的压力或密度时，推动微动开关的动作臂或磁助式电接点的动作触头运动，使微动开关的动作臂或磁助式电接点的动作触头紧贴磁性元件，即当该信号动作后，无论压力或密度降低或增加，磁性元件都能保持微动开关的动作臂或磁助式电接点的动作触头处于信号动作状态。The holding mechanism is a magnetic element. When the set pressure or density is reached, the action arm of the micro switch or the action contact of the magnetic-assisted electric contact is pushed to move, so that the action arm of the micro switch or the magnetic-assisted electric contact The action contact is close to the magnetic element, that is, when the signal is activated, no matter the pressure or density decreases or increases, the magnetic element can keep the action arm of the micro switch or the action contact of the magnetic-assisted electric contact in the signal action state.
所述保持机构含有磁性元件，当达到设置的压力或密度时，推动微动开关的动作臂或磁助式电接点的动作触头运动，使微动开关的动作臂或磁助式电接点的动作触头越过保持机构，微动开关的动作臂或磁助式电接点的动作触头贴近磁性元件，即当该信号动作后，无论压力或密度降低或增加，保持机构的磁性元件更加能保持微动开关的动作臂或磁助式电接点的动作触头处于信号动作状态。The holding mechanism contains a magnetic element. When the set pressure or density is reached, the action arm of the micro switch or the action contact of the magnetic-assisted electric contact is pushed to move, so that the action arm of the micro switch or the magnetic-assisted electric contact moves. The action contact goes over the holding mechanism, and the action arm of the micro switch or the action contact of the magnetic-assisted electric contact is close to the magnetic element, that is, when the signal is activated, no matter whether the pressure or density decreases or increases, the magnetic element of the holding mechanism is more able to hold The action arm of the micro switch or the action contact of the magnetic-assisted electric contact is in the signal action state.
本发明提供一种带接点动作保持的电接点压力表，或者一种带接点动作保持的气体密度继电器。最大创新点是，特别是，通过了很大的创新，具有保持机构及复位机构，可以实现电气设备燃弧超压报警保持功能。即当电气设备燃弧后，其压力过高时，能够超压报警。而其压力正常时，其报警信号一直保持，可以让运行人员发现电气设备燃弧现象，及时处理燃弧现象的电气设备，保障电力安全运行。The invention provides an electric contact pressure gauge with contact action holding, or a gas density relay with contact action holding. The biggest innovation point is, in particular, through a great innovation, it has a holding mechanism and a reset mechanism, which can realize the holding function of the arcing overpressure alarm of electrical equipment. That is, when the pressure of the electrical equipment is too high after arcing, an overpressure alarm can be issued. When the pressure is normal, the alarm signal is always maintained, allowing the operator to discover the arcing phenomenon of electrical equipment, and deal with the electrical equipment in time to ensure the safe operation of electric power.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图；本发明提供一种带接点动作保持的电接点压力表以一种带温度补偿的气体密度继电器为例进行说明和阐述。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained from these drawings without paying creative labor; the present invention provides an electric contact pressure gauge with contact action maintenance and a A compensated gas density relay is illustrated and illustrated as an example.
图1为本发明实施例的六氟化硫气体密度继电器的信号未动作状态说明图；Fig. 1 is an explanatory diagram of the signal non-action state of the sulfur hexafluoride gas density relay of the embodiment of the present invention;
图2为本发明实施例六氟化硫气体密度继电器的信号动作保持状态原理说明图；Fig. 2 is an explanatory diagram of the principle of the signal action holding state of the sulfur hexafluoride gas density relay according to the embodiment of the present invention;
图3为本发明实施例六氟化硫气体密度继电器的信号动作复位过程原理说明图；Fig. 3 is an explanatory diagram of the principle of the signal action reset process of the sulfur hexafluoride gas density relay according to the embodiment of the present invention;
图4为本发明实施例的一种六氟化硫气体密度继电器的局部剖面示意图；Fig. 4 is a partial cross-sectional schematic diagram of a sulfur hexafluoride gas density relay according to an embodiment of the present invention;
图5为本发明另一种实施例的六氟化硫气体密度继电器的信号动作复位过程原理说明图。Fig. 5 is an explanatory diagram of the principle of the reset process of the signal action of the sulfur hexafluoride gas density relay according to another embodiment of the present invention.
具体实施方式：Detailed ways:
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
本发明提供一种带接点动作保持的电接点压力表以一种带温度补偿的气体密度继电器为例进行说明和阐述。具体参见图1、图2、图3和图4，图4为本发明实施例一的六氟化硫气体密度继电器的局部剖面示意图，如图4所示，本发明实施例一公开了一种气体密度继电器，包括：壳体18、接头3、以及连接在一起的信号机构和示值显示机构；The present invention provides an electric contact pressure gauge with contact action maintenance and uses a gas density relay with temperature compensation as an example to illustrate and illustrate. Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4 for details. Fig. 4 is a schematic partial cross-sectional view of a sulfur hexafluoride gas density relay according to Embodiment 1 of the present invention. As shown in Fig. 4, Embodiment 1 of the present invention discloses a A gas density relay, comprising: a housing 18, a joint 3, and a signal mechanism and a display mechanism connected together;
所述信号机构内设有检测电气设备内气体密度的波纹管1和作为接点的微动开关16；The signal mechanism is provided with a bellows 1 for detecting the gas density in the electrical equipment and a micro switch 16 as a contact point;
所述示值显示机构包括：显示巴登管4、显示端座5、机芯32、刻度盘31、指针33、显示基座7和显示观察窗30；所述显示巴登管4的一端密封连接于所述显示端座5，所述显示巴登管4的另一端连接在所述显示基座7上，所述指针33安装于所述机芯32上。The indication display mechanism includes: a display Baden tube 4, a display end seat 5, a movement 32, a dial 31, a pointer 33, a display base 7 and a display observation window 30; one end of the display Baden tube 4 is sealed Connected to the display end base 5 , the other end of the display Baden tube 4 is connected to the display base 7 , and the pointer 33 is installed on the movement 32 .
所述的信号机构包括底盘11、波纹管1、支架37、顶杆13、固定架17、若干微动开关16、若干调节件38、调节件固定板9、壳体18、出线座39，波纹管1的一端密封焊接在底盘11上，波纹管1的另一端密封焊接在支架37上，固定架17固定在底盘11或壳体18内，顶杆13固定在支架37上。微动开关16固定在固定架17或底盘11上，调节件固定板9固定在顶杆13上，若干调节件38固定在调节件固定板9上，出线座39密封固定在壳体18或底盘11上。壳体18的一端密封焊接在底盘11上，形成密封气室G。密封气室G内密封有补偿气体，该补偿气体对信号机构起温度补偿作用。显示观察窗30固定在底盘11上，示值显示机构在显示观察窗30内。接头3固定在壳体18上。显示端座5固定在底盘11上，底盘11上设有进气孔A，进气孔A通过连接件B与接头3在气路上相互连通。在气路上，显示巴登管4、波纹管1通过进气孔A、连接件B与接头3相互连通。The signal mechanism includes chassis 11, bellows 1, bracket 37, push rod 13, fixed frame 17, several micro switches 16, several adjustment parts 38, adjustment part fixing plate 9, housing 18, outlet seat 39, corrugated One end of the pipe 1 is sealed and welded on the chassis 11 , the other end of the bellows 1 is sealed and welded on the support 37 , the fixing frame 17 is fixed in the chassis 11 or the housing 18 , and the ejector rod 13 is fixed on the support 37 . The micro switch 16 is fixed on the fixed frame 17 or the chassis 11, the adjusting member fixing plate 9 is fixed on the push rod 13, several adjusting members 38 are fixed on the adjusting member fixing plate 9, and the outlet seat 39 is sealed and fixed on the housing 18 or the chassis 11 on. One end of the casing 18 is sealed and welded to the chassis 11 to form a sealed air chamber G. Compensation gas is sealed in the sealed gas chamber G, and the compensation gas acts as temperature compensation for the signal mechanism. The display observation window 30 is fixed on the chassis 11 , and the indicator display mechanism is inside the display observation window 30 . The joint 3 is fixed on the housing 18 . The display end seat 5 is fixed on the chassis 11, and the chassis 11 is provided with an air inlet A, and the air inlet A communicates with the joint 3 through the connecting piece B on the air path. On the air path, it is shown that the Baden tube 4 and the bellows 1 communicate with each other through the air inlet A, the connecting piece B and the joint 3 .
所述接头3固定在壳体18上，所述示值显示机构在显示观察窗30内。弹簧12套设于所述顶杆13上，且所述弹簧12的一端与所述支架37抵接，另一端与所述顶杆导向件39抵接。顶杆13从顶杆导向件39上穿过，顶杆导向件39固定在固定架17上。微动开关16设置在调节件固定板9的前部和后部。The joint 3 is fixed on the housing 18 , and the indication display mechanism is in the display observation window 30 . The spring 12 is sheathed on the push rod 13 , and one end of the spring 12 abuts against the bracket 37 , and the other end abuts against the push rod guide 39 . The ejector rod 13 passes through the ejector rod guide 39 , and the ejector rod guide 39 is fixed on the fixed frame 17 . The micro switch 16 is arranged on the front and the rear of the adjusting member fixing plate 9 .
参见图1、图2和图3，本发明实施例产品还包括信号动作后的保持机构14及复位机构40。所述的保持机构14与需要信号保持的信号接点对应设置，当该信号动作后，无论压力或密度降低或增加，保持机构14都能保持信号接点动作状态，只能通过复位机构40才能使信号接点复位。所述的保持机构14为弹性件。当达到设置的压力或密度时，调节件38推动微动开关16的动作臂15运动，使微动开关16的动作臂15越过弹性件14。即当该信号动作后，无论压力或密度降低或增加，弹性件14都能保持微动开关16的动作臂15处于信号动作状态。Referring to FIG. 1 , FIG. 2 and FIG. 3 , the product of the embodiment of the present invention also includes a holding mechanism 14 and a reset mechanism 40 after the signal is activated. The holding mechanism 14 is set corresponding to the signal contact that needs signal holding. When the signal is activated, no matter whether the pressure or density decreases or increases, the holding mechanism 14 can maintain the action state of the signal contact, and the signal can only be activated by the reset mechanism 40. Contact reset. The holding mechanism 14 is an elastic member. When the set pressure or density is reached, the regulating member 38 pushes the action arm 15 of the micro switch 16 to move, so that the action arm 15 of the micro switch 16 passes over the elastic member 14 . That is, after the signal is activated, the elastic member 14 can keep the action arm 15 of the microswitch 16 in the signal action state no matter the pressure or density decreases or increases.
具体结合图1和图2，所述的保持机构为弹性件14。当达到设置的压力或密度时，调节件38推动微动开关16的动作臂15运动，使微动开关的动作臂15越过弹性件14，如图2所示。即当该信号动作后，无论压力或密度降低或增加，弹性件14都能保持微动开关的动作臂15处于信号动作状态。当然所述的保持机构主要包括弹簧和保持元件。当达到设置的压力或密度时，调节件推动微动开关的动作臂运动，使微动开关的动作臂拉伸或压缩弹簧，使微动开关的动作臂越过保持元件，保持元件卡住微动开关的动作臂。即当该信号动作后，无论压力或密度降低或增加，保持元件都能保持微动开关的动作臂处于信号动作状态。当该信号动作后，无论压力或密度降低或增加，弹性件都能保持微动开关的动作臂处于信号动作状态，只能通过复位机构40才能使信号接点复位。参见图4，如图中的虚线所示，通过操作复位机构40，使复位机构40推动保持机构14远离微动开关的动作臂15，微动开关的动作臂15恢复正常状态，使信号复位。所述复位机构为旋转运动，旋转复位机构，使复位机构推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。所述复位机构为一带操作柄的杆件组成，通过旋转操作柄，旋转复位机构的杆件40，使复位机构的杆件推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。所述复位机构为水平或垂直运动，按下或拔出复位机构，使复位机构推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。所述复位机构为一带操作柄的元件组成，通过按下或拔出操作柄，推动复位机构的元件，使复位机构的元件推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。Referring specifically to FIG. 1 and FIG. 2 , the holding mechanism is an elastic member 14 . When the set pressure or density is reached, the adjustment member 38 pushes the action arm 15 of the micro switch 16 to move, so that the action arm 15 of the micro switch passes over the elastic member 14, as shown in FIG. 2 . That is, after the signal is activated, the elastic member 14 can keep the actuating arm 15 of the microswitch in the signal actuated state no matter the pressure or density decreases or increases. Of course, the holding mechanism described mainly includes a spring and a holding element. When the set pressure or density is reached, the adjustment member pushes the action arm of the micro switch to move, so that the action arm of the micro switch stretches or compresses the spring, so that the action arm of the micro switch passes over the holding element, and the holding element blocks the micro switch The action arm of the switch. That is to say, after the signal is activated, no matter the pressure or density decreases or increases, the holding element can keep the action arm of the micro switch in the signal action state. After the signal action, no matter the pressure or density decreases or increases, the elastic member can keep the action arm of the micro switch in the signal action state, and the signal contact can only be reset by the reset mechanism 40 . Referring to FIG. 4 , as shown by the dotted line in the figure, by operating the reset mechanism 40, the reset mechanism 40 pushes the holding mechanism 14 away from the action arm 15 of the micro switch, and the action arm 15 of the micro switch returns to a normal state to reset the signal. The reset mechanism is a rotary motion, and the reset mechanism is rotated so that the reset mechanism pushes the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch returns to a normal state to reset the signal. The reset mechanism is composed of a rod with an operating handle. By rotating the operating handle, the rod 40 of the reset mechanism is rotated, so that the rod of the reset mechanism pushes the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch recovers. Normal state, resets the signal. The reset mechanism moves horizontally or vertically. When the reset mechanism is pressed or pulled out, the reset mechanism pushes the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch returns to a normal state to reset the signal. The reset mechanism is composed of elements with an operating handle. By pressing or pulling out the operating handle, the elements of the reset mechanism are pushed, so that the elements of the reset mechanism push the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch recovers. Normal state, resets the signal.
参见图2和图3所示，所述复位机构还包括还原装置42，操作复位机构后，还原装置42能够使复位机构恢复原状。所述还原装置为弹性元件42，操作复位机构结束后，还原装置的弹性元件的弹力能够使复位机构40恢复原状。或者所述还原装置含有弹簧，操作复位机构结束后，还原装置的弹簧的弹力或拉力能够使复位机构恢复原状。Referring to Fig. 2 and Fig. 3, the resetting mechanism further includes a resetting device 42, and after the resetting mechanism is operated, the resetting device 42 can restore the resetting mechanism to its original state. The restoring device is an elastic element 42, and after the reset mechanism is operated, the elastic force of the elastic element of the restoring device can restore the reset mechanism 40 to its original state. Or the restoring device includes a spring, and after the reset mechanism is operated, the elastic or pulling force of the spring of the restoring device can restore the reset mechanism to its original state.
另外，具体所述的保持机构可以主要包括弹簧和保持元件。当达到设置的压力或密度时，调节件38推动微动开关的动作臂15运动，使微动开关的动作臂15拉伸或压缩弹簧，使微动开关的动作臂越过保持元件，保持元件14卡住微动开关的动作臂。即当该信号动作后，无论压力或密度降低或增加，保持元件都能保持微动开关的动作臂处于信号动作状态。当该信号动作后，无论压力或密度降低或增加，弹性件都能保持微动开关的动作臂处于信号动作状态，只能通过复位机构40才能使信号复位。即通过操作复位机构40，使复位机构40推动保持机构14远离微动开关16的动作臂15，微动开关16的动作臂15恢复正常状态，使信号复位。所述复位机构40为旋转运动，旋转复位机构40，使复位机构40推动保持机构14远离微动开关的动作臂15，微动开关的动作臂15恢复正常状态，使信号复位。复位机构40与壳体是密封的，在操作复位机构40时，密封气室G始终处于密封状态。复位机构40通过密封圈与壳体实现密封的。所述复位机构40为一带操作柄的杆件401组成，通过旋转操作柄，旋转复位机构的杆件，使复位机构的杆件401推动保持机构14远离微动开关的动作臂15，微动开关的动作臂15恢复正常状态，使信号复位。参见图5所示，另外所述复位机构也可以为水平或垂直运动，如图中的虚线所示，按下或拔出复位机构40，使复位机构推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。或所述复位机构为一带操作柄的元件组成，通过按下或拔出操作柄，推动复位机构的元件，使复位机构的元件推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。其方法多样，例如也可以所述复位机构为垂直曲线运动，按下或拔出复位机构，使复位机构推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。所述复位机构为一带操作柄的元件组成，通过上拨或下拨操作柄，推动复位机构的元件，使复位机构的元件推动保持机构远离微动开关的动作臂，微动开关的动作臂恢复正常状态，使信号复位。In addition, the specifically described holding mechanism may mainly include a spring and a holding element. When the set pressure or density is reached, the adjusting part 38 pushes the action arm 15 of the micro switch to move, so that the action arm 15 of the micro switch stretches or compresses the spring, so that the action arm of the micro switch passes over the holding element, and the holding element 14 Clamp the action arm of the micro switch. That is to say, after the signal is activated, no matter the pressure or density decreases or increases, the holding element can keep the action arm of the micro switch in the signal action state. After the signal action, no matter the pressure or density decreases or increases, the elastic member can keep the action arm of the microswitch in the signal action state, and the signal can only be reset by the reset mechanism 40 . That is, by operating the reset mechanism 40, the reset mechanism 40 pushes the holding mechanism 14 away from the action arm 15 of the micro switch 16, and the action arm 15 of the micro switch 16 returns to a normal state to reset the signal. The reset mechanism 40 is a rotary motion, and the reset mechanism 40 is rotated so that the reset mechanism 40 pushes the holding mechanism 14 away from the action arm 15 of the micro switch, and the action arm 15 of the micro switch returns to a normal state to reset the signal. The reset mechanism 40 is sealed with the casing, and when the reset mechanism 40 is operated, the sealed air chamber G is always in a sealed state. The reset mechanism 40 is sealed with the housing through the sealing ring. The reset mechanism 40 is composed of a lever 401 with an operating handle. By rotating the operating handle and rotating the lever of the reset mechanism, the lever 401 of the reset mechanism pushes the holding mechanism 14 away from the action arm 15 of the micro switch, and the micro switch The action arm 15 returns to the normal state, so that the signal is reset. Referring to Figure 5, in addition, the reset mechanism can also move horizontally or vertically, as shown by the dotted line in the figure, press or pull out the reset mechanism 40, so that the reset mechanism pushes the holding mechanism away from the action arm of the micro switch, The action arm of the micro switch returns to normal state, which resets the signal. Or the reset mechanism is composed of elements with an operating handle. By pressing or pulling out the operating handle, the elements of the reset mechanism are pushed, so that the elements of the reset mechanism push the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch Return to normal state, reset the signal. The method is various, for example, the reset mechanism can also be a vertical curve movement, press or pull out the reset mechanism, so that the reset mechanism pushes the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch returns to the normal state, so that the signal reset. The reset mechanism is composed of elements with an operating handle. By dialing up or down the operating handle, the elements of the reset mechanism are pushed, so that the elements of the reset mechanism push the holding mechanism away from the action arm of the micro switch, and the action arm of the micro switch recovers. Normal state, resets the signal.
所述复位机构40还包括还原装置42，操作复位机构40后，还原装置42能够使复位机构40恢复原状。所述还原装置42为弹性元件，操作复位机构结束后，还原装置的弹性元件42的弹力能够使复位机构40恢复原状。另外所述还原装置含有弹簧，操作复位机构结束后，还原装置的弹簧的弹力或拉力能够使复位机构恢复原状。The resetting mechanism 40 also includes a resetting device 42 , and after the resetting mechanism 40 is operated, the resetting device 42 can restore the resetting mechanism 40 to its original state. The restoring device 42 is an elastic element. After the reset mechanism is operated, the elastic force of the elastic element 42 of the restoring device can restore the reset mechanism 40 to its original state. In addition, the restoring device includes a spring, and after the reset mechanism is operated, the spring force or pulling force of the spring of the restoring device can restore the restoring mechanism to its original state.
本发明实施例产品还包括不拆卸校验装置C。不拆卸校验装置C与连接件B相互融合在一起。所述的不拆卸校验装置C(与连接件B相互融合在一起B)固定在底盘上或壳体上或接头上。所述不拆卸校验装置C和底盘的进气孔A、连接件B的连接管8与接头3在气路上相互连通。The product of the embodiment of the present invention also includes a calibration device C without disassembly. The calibration device C and the connecting piece B are fused together without disassembly. The non-detachable calibration device C (integrated with the connector B) is fixed on the chassis or on the housing or on the joint. The non-detachable calibration device C communicates with the air inlet A of the chassis, the connecting pipe 8 of the connector B and the joint 3 on the air path.
所述的不拆卸校验装置C主要由阀门19、校验口26组成，可以不用拆卸，通过关闭阀门19，使密度继电器在气路上与电气设备内部的气室关断，通过校验口26完成密度继电器的校验。所述的不拆卸校验装置的阀门19为截断类阀门，如球阀、蝶阀、闸阀、截止阀、旋塞阀、蝶阀、针型阀、隔膜阀等，可以不用拆卸，通过关闭阀门，使密度继电器在气路上与电气设备内部的气室关断，通过校验口完成密度继电器的校验。The non-disassembly calibration device C is mainly composed of a valve 19 and a calibration port 26. It may not be disassembled. By closing the valve 19, the density relay is cut off from the gas chamber inside the electrical equipment on the gas path, and the gas chamber through the calibration port 26 is closed. Complete the calibration of the density relay. The valve 19 of the non-disassembly calibration device is a cut-off valve, such as a ball valve, butterfly valve, gate valve, globe valve, plug valve, butterfly valve, needle valve, diaphragm valve, etc., and the density relay can be closed by closing the valve without disassembly. The air circuit and the gas chamber inside the electrical equipment are shut off, and the density relay is verified through the verification port.
本发明实施例产品显示机构还包括显示温度补偿元件，所述显示温度补偿元件为双金属片6。所述双金属片6和显示机构的密封气室内的补偿气体共同对示值显示机构起到温度补偿作用。当然显示机构还包括显示温度补偿元件，所述显示温度补偿元件为充有补偿气体的补偿器件。所述充有补偿气体的补偿器件为充有补偿气体的显示补偿巴登管，或充有补偿气体的补偿器件为充有补偿气体的显示补偿波纹管。当然所述显示温度补偿元件也可以为密封气体。还包括感温包，所述补偿气体通过连接气管与感温包相连接。The display mechanism of the product in the embodiment of the present invention also includes a display temperature compensation element, and the display temperature compensation element is a bimetallic strip 6 . The bimetal sheet 6 and the compensation gas in the sealed air chamber of the display mechanism jointly perform a temperature compensation function on the indication display mechanism. Of course, the display mechanism also includes a display temperature compensation element, which is a compensation device filled with compensation gas. The compensation device filled with compensation gas is a display compensation Baden tube filled with compensation gas, or the compensation device filled with compensation gas is a display compensation bellows filled with compensation gas. Of course, the display temperature compensation element can also be a sealing gas. It also includes a temperature-sensing package, and the compensation gas is connected with the temperature-sensing package through a connecting gas pipe.
本发明实施例产品还包括：弹簧12，弹簧12嵌套在顶杆13上，弹簧12的一端靠在支架37，弹簧的另一端靠在顶杆导向件39上。所述出线座设有避振件，出线座固定在避振件上，避振件固定在底盘或壳体上。所述避振件为波纹管或有避振功能的薄板组成。出线座的连接线与微动开关连接，并出线座的连接线连接到壳体外的接线座或电缆上。所述示值显示机构全密封在显示观察窗30内，使示值显示为绝对压力，不受海拔高度影响，所述显示观察窗正面为透明的玻璃。所述显示观察窗30通过密封圈36与底盘11密封固定连接在一起。所述显示观察窗30外面嵌套有表盖34。设于底盘或壳体上的充气管。可以通过充气管充上相应的补偿气体。还包括进气口，进气口设置在底盘或壳体上，所述接头通过气管与进气口相连接或直接与进气口相连接。还包括进气口，进气口设置在底盘上，所述接头与进气口相连接，所述密封气室内充有补偿气体。所述显示基座通过连接管或直接固定在底盘上，该显示基座与接头在气路上相连通。所述出线连接座通过接线座安装过渡件固定安装于所述密封腔体上，或者，所述出线连接座直接固定安装于所述密封腔体上。所述密封腔体外部包裹有保温层。设于表壳后面的托盘，所述托盘盘和所述表壳间设有避振垫。The product of the embodiment of the present invention also includes: a spring 12 , the spring 12 is nested on the ejector rod 13 , one end of the spring 12 leans against the bracket 37 , and the other end of the spring leans against the ejector rod guide 39 . The outlet seat is provided with a vibration-absorbing member, the outlet seat is fixed on the vibration-absorbing member, and the vibration-absorbing member is fixed on the chassis or the shell. The vibration-absorbing part is composed of bellows or a thin plate with vibration-absorbing function. The connection line of the outlet seat is connected with the micro switch, and the connection line of the outlet seat is connected to the wiring seat or the cable outside the casing. The indication display mechanism is fully sealed in the display observation window 30, so that the indication is displayed as absolute pressure, which is not affected by the altitude, and the front of the display observation window is transparent glass. The display observation window 30 is sealed and fixedly connected with the chassis 11 through a sealing ring 36 . A watch cover 34 is nested outside the display viewing window 30 . Inflatable tubes located on the chassis or housing. The corresponding compensation gas can be filled through the inflation tube. It also includes an air inlet, the air inlet is arranged on the chassis or the shell, and the joint is connected with the air inlet through an air pipe or directly connected with the air inlet. It also includes an air inlet, the air inlet is arranged on the chassis, the joint is connected with the air inlet, and the sealing air chamber is filled with compensation gas. The display base is fixed on the chassis through a connecting pipe or directly, and the display base communicates with the joint on the air path. The outgoing line connecting seat is fixedly installed on the sealed cavity through the wiring seat installation transition piece, or the outgoing line connecting seat is directly fixedly installed on the sealed cavity. The outside of the sealed cavity is wrapped with an insulation layer. The tray is arranged at the back of the case, and a vibration-absorbing pad is arranged between the tray and the case.
所述保持机构14的另一端向开关固定架41内部弯折；所述微动开关的动作臂15与所述调节件38相抵接，且所述微动开关的动作臂15的一端可在压力增加时，调节件38的带动下沿所述保持机构14滑动至所述保持机构14抵接于所述保持机构14上。The other end of the holding mechanism 14 is bent toward the inside of the switch holder 41; the action arm 15 of the micro switch abuts against the adjustment member 38, and one end of the action arm 15 of the micro switch can be pressed under pressure. When increasing, the adjustment member 38 is driven to slide along the holding mechanism 14 until the holding mechanism 14 abuts against the holding mechanism 14 .
所述微动开关可设置在波纹管1外侧，微动开关16设置在调节件固定板的前部或后部。本实施例还包括信号动作后的保持机构14及复位机构40，所述保持机构14与需要信号保持的信号接点对应设置，当该信号接点动作后，无论压力或密度降低或增加，保持机构14都能保持信号动作状态，只能通过复位机构40才能使信号复位。The micro switch can be arranged on the outside of the bellows 1, and the micro switch 16 is arranged on the front or the rear of the fixing plate of the adjusting member. This embodiment also includes a holding mechanism 14 and a reset mechanism 40 after the signal action. The holding mechanism 14 is set corresponding to the signal contact that needs signal holding. When the signal contact is activated, no matter whether the pressure or density decreases or increases, the holding mechanism 14 All can keep the signal action state, and the signal can only be reset by the reset mechanism 40.
另外，所述的六氟化硫气体密度继电器，还可以所述的微动开关还包括动作臂，当该信号动作后，保持机构保持住(卡住)动作臂，无论压力或密度降低或增加，保持机构都能保持信号动作状态，只能通过复位机构才能使信号复位。例如，所述的动作臂为弹性件，当达到设置的压力或密度时，调节件推动微动开关的动作臂运动，由于动作臂为弹性件，就可以使微动开关的动作臂很好的越过保持机构，而保持机构保持住(卡住)动作臂。这样一来，即当该信号动作后，无论压力或密度降低或增加，保持机构都能保持微动开关的动作臂处于信号动作状态。In addition, for the sulfur hexafluoride gas density relay, the micro switch may also include an action arm, and when the signal is activated, the holding mechanism holds (blocks) the action arm, no matter the pressure or density decreases or increases , the holding mechanism can maintain the signal action state, and the signal can only be reset through the reset mechanism. For example, the action arm is an elastic member. When the set pressure or density is reached, the adjustment member pushes the action arm of the micro switch to move. Since the action arm is an elastic member, the action arm of the micro switch can be well Override the holding mechanism, which holds (jams) the action arm. In this way, after the signal is activated, no matter whether the pressure or density decreases or increases, the holding mechanism can keep the action arm of the microswitch in the signal action state.
所述的六氟化硫气体密度继电器，其报警(闭锁)信号保持实现方法还可以：所述的微动开关带有动作臂，当该信号动作后，保持机构保持住动作臂，无论压力或密度降低或增加，保持机构都能保持信号动作状态，只能通过复位机构才能使信号复位。具体来说，所述的动作臂为弹性件。当达到设置的压力或密度时，调节件推动微动开关的动作臂运动，因为动作臂为弹性件，就可以方便的使微动开关的动作臂越过保持机构，而保持机构能够卡住动作臂。即当该信号动作后，无论压力或密度降低或增加，保持机构都能保持微动开关的动作臂处于信号动作状态。In the sulfur hexafluoride gas density relay, the method for maintaining the alarm (blocking) signal can also be achieved: the micro switch has an action arm, and when the signal is activated, the holding mechanism maintains the action arm, no matter the pressure or When the density decreases or increases, the holding mechanism can maintain the signal action state, and the signal can only be reset through the reset mechanism. Specifically, the action arm is an elastic member. When the set pressure or density is reached, the adjusting part pushes the action arm of the micro switch to move, because the action arm is an elastic part, it is convenient to make the action arm of the micro switch pass over the holding mechanism, and the holding mechanism can block the action arm . That is to say, after the signal action, no matter the pressure or density decreases or increases, the holding mechanism can keep the action arm of the micro switch in the signal action state.
本发明技术一种带接点动作保持的电接点压力表，还可以，所述的保持机构为磁性元件。当达到设置的压力或密度时，推动微动开关的动作臂或磁助式电接点的动作触头运动，使微动开关的动作臂或磁助式电接点的动作触头紧贴磁性元件。即当该信号动作后，无论压力或密度降低或增加，磁性元件都能保持微动开关的动作臂或磁助式电接点的动作触头处于信号动作状态。或者，所述的保持机构含有磁性元件。当达到设置的压力或密度时，推动微动开关的动作臂或磁助式电接点的动作触头运动，使微动开关的动作臂或磁助式电接点的动作触头越过保持机构，微动开关的动作臂或磁助式电接点的动作触头贴近磁性元件。即当该信号动作后，无论压力或密度降低或增加，保持机构的磁性元件更加能保持微动开关的动作臂或磁助式电接点的动作触头处于信号动作状态The technology of the present invention is an electric contact pressure gauge with contact action holding. It is also possible that the holding mechanism is a magnetic element. When the set pressure or density is reached, push the action arm of the micro switch or the action contact of the magnetic-assisted electric contact to move, so that the action arm of the micro-switch or the action contact of the magnetic-assisted electric contact is close to the magnetic element. That is, when the signal is activated, no matter the pressure or density decreases or increases, the magnetic element can keep the action arm of the micro switch or the action contact of the magnetic-assisted electric contact in the signal action state. Alternatively, the retaining mechanism includes magnetic elements. When the set pressure or density is reached, the action arm of the micro switch or the action contact of the magnetic-assisted electric contact is pushed to move, so that the action arm of the micro-switch or the action contact of the magnetic-assisted electric contact passes over the holding mechanism, and the The action arm of the dynamic switch or the action contact of the magnetic-assisted electric contact is close to the magnetic element. That is, when the signal is activated, no matter the pressure or density decreases or increases, the magnetic element of the holding mechanism can keep the action arm of the micro switch or the action contact of the magnetic-assisted electric contact in the signal action state.
所述微动开关的位置可以设置在波纹管外侧，即微动开关可以设置在下面，沉下去，使密度继电器的厚度变薄。The position of the micro switch can be set on the outside of the bellows, that is, the micro switch can be set on the bottom and sink down, so that the thickness of the density relay becomes thinner.
监测的气体可以是六氟化硫气体、六氟化硫混合气体、氮气、压缩空气等各种气体。The monitored gas can be sulfur hexafluoride gas, sulfur hexafluoride mixed gas, nitrogen, compressed air and other gases.
本发明的一种带接点动作保持的电接点压力表，或者一种带温度补偿的带接点动作保持的气体密度继电器，通过了很大的创新，具有气体压力(或气体密度)保持机构及复位机构，可以实现电气设备燃弧超压报警功能。即当电气设备燃弧后，其压力过高时，能够超压报警。而其压力正常时，其报警信号一直保持，可以让运行人员发现电气设备燃弧现象，及时处理燃弧现象的电气设备，保障电力安全运行。An electric contact pressure gauge with contact action holding or a gas density relay with contact action holding with temperature compensation of the present invention has undergone great innovation and has a gas pressure (or gas density) holding mechanism and reset The mechanism can realize the arc overpressure alarm function of electrical equipment. That is, when the pressure of the electrical equipment is too high after arcing, an overpressure alarm can be issued. When the pressure is normal, the alarm signal is always maintained, allowing the operator to discover the arcing phenomenon of electrical equipment, and deal with the electrical equipment in time to ensure the safe operation of electric power.
同样，对于低压报警也一样适用，即在低压报警信号上设有一保持机构，在设备的压力低压之前，其相应的低压报警信号没有动作，则该保持机构不起作用，而当电气设备发生气体压力异常时，其压力过低时，能够输出低压报警信号，输出低压报警信号之后，而当电气设备气体压力正常时，则该保持机构起作用，其保持机构使该报警信号一直保持，即当该报警信号动作后，无论压力或密度降低或增加，保持机构都能保持报警信号处于动作状态，只能通过复位机构才能使信号复位。Similarly, it is also applicable to the low pressure alarm, that is, a holding mechanism is provided on the low pressure alarm signal. When the pressure is abnormal, when the pressure is too low, it can output a low-pressure alarm signal. After outputting the low-pressure alarm signal, when the gas pressure of the electrical equipment is normal, the holding mechanism works, and the holding mechanism keeps the alarm signal. After the alarm signal is activated, no matter the pressure or density decreases or increases, the holding mechanism can keep the alarm signal in the action state, and the signal can only be reset by the reset mechanism.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223333.0ACN107799356B (en) | 2017-11-29 | 2017-11-29 | Electric contact pressure gauge with contact action keeping function |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223333.0ACN107799356B (en) | 2017-11-29 | 2017-11-29 | Electric contact pressure gauge with contact action keeping function |
| Publication Number | Publication Date |
|---|---|
| CN107799356Atrue CN107799356A (en) | 2018-03-13 |
| CN107799356B CN107799356B (en) | 2020-11-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711223333.0AActiveCN107799356B (en) | 2017-11-29 | 2017-11-29 | Electric contact pressure gauge with contact action keeping function |
| Country | Link |
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| CN (1) | CN107799356B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550499A (en)* | 2018-04-27 | 2018-09-18 | 朗松珂利(上海)仪器仪表有限公司 | Sulfur hexafluoride gas density relay and its assembly technology |
| CN110491723A (en)* | 2019-09-04 | 2019-11-22 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with contact state monitoring |
| CN112304494A (en)* | 2019-07-25 | 2021-02-02 | 北京康斯特仪表科技股份有限公司 | Gas circuit assembly and gas pressure calibrator |
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| CN1620708A (en)* | 2002-01-30 | 2005-05-25 | 金基镇 | Contact switch devices using magnets |
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| CN204720384U (en)* | 2015-04-10 | 2015-10-21 | 国家电网公司 | A kind of sulfur hexafluoride gas density relay with double compensation element |
| CN206541771U (en)* | 2017-02-14 | 2017-10-03 | 朗松珂利(上海)仪器仪表有限公司 | A kind of retainable sulfur hexafluoride gas density relay of contact |
| CN207752939U (en)* | 2017-11-29 | 2018-08-21 | 上海乐研电气有限公司 | A kind of electro connecting pressure gauge kept with contact action |
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3924086A (en)* | 1974-03-27 | 1975-12-02 | Robertshaw Controls Co | Pressure responsive magnetic switch |
| CN1620708A (en)* | 2002-01-30 | 2005-05-25 | 金基镇 | Contact switch devices using magnets |
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| CN108550499A (en)* | 2018-04-27 | 2018-09-18 | 朗松珂利(上海)仪器仪表有限公司 | Sulfur hexafluoride gas density relay and its assembly technology |
| CN112304494A (en)* | 2019-07-25 | 2021-02-02 | 北京康斯特仪表科技股份有限公司 | Gas circuit assembly and gas pressure calibrator |
| CN110491723A (en)* | 2019-09-04 | 2019-11-22 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with contact state monitoring |
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| EE01 | Entry into force of recordation of patent licensing contract | Application publication date:20180313 Assignee:Shanghai Youtian Industrial Equipment Co.,Ltd. Assignor:SHANGHAI ROYE ELECTRIC Co.,Ltd. Contract record no.:X2022310000136 Denomination of invention:An electric contact pressure gauge with contact action holding Granted publication date:20201106 License type:Common License Record date:20220926 | |
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