技术领域technical field
本发明属于钳形电流表技术领域，具体涉及一种校准电流表用的辅助装置。The invention belongs to the technical field of clamp ammeters, and in particular relates to an auxiliary device for calibrating ammeters.
背景技术Background technique
钳式电流表是电流表的一种，用来测量电路中的电流值，简称电流钳。在电气和电子工程中，电流钳(或称电流探头)是有两个可打开的钳式探头，用于夹紧电气设备周围的电导体，并且探头无需与设备导电部分接触，即无需断开设备导线用于探针插入，来测量电流在导体的属性。Clamp-on ammeter is a kind of ammeter, which is used to measure the current value in the circuit, referred to as current clamp. In electrical and electronic engineering, a current clamp (or current probe) is a probe with two openable clamps used to clamp electrical conductors around electrical equipment, and the probe does not need to be in contact with the conductive part of the equipment, that is, without disconnection The device lead is used for probe insertion to measure the properties of the current flowing through the conductor.
现有的钳式电流表的在校准的时候需要设置多个电路，且电路中的器件、被测导线和钳式电流表均没有进行固定，导致钳式电流表测出的电流值有误差，操作麻烦，影响电流表的校准的准确性；同时，现有的校准装置无法知晓钳形电流表检测电流和检测导线穿过钳端角度的变化关系，为此我们提出一种校准电流表用的辅助装置。The current clamp-on ammeter needs to set up multiple circuits during calibration, and the devices in the circuit, the wires to be tested and the clamp-on ammeter are not fixed, resulting in errors in the current value measured by the clamp-on ammeter, and the operation is troublesome. It affects the accuracy of the calibration of the ammeter; at the same time, the existing calibration device cannot know the relationship between the current detected by the clamp ammeter and the angle of the detection wire passing through the clamp end. Therefore, we propose an auxiliary device for calibrating the ammeter.
发明内容Contents of the invention
本发明的目的是针对现有校准电流表用的辅助装置影响电流表的校准的准确性的问题，提供了一种校准电流表用的辅助装置。The object of the present invention is to provide an auxiliary device for calibrating the ammeter to solve the problem that the existing auxiliary device for calibrating the ammeter affects the accuracy of the calibration of the ammeter.
本发明是通过以下技术方案实现的：一种校准电流表用的辅助装置，包括底座板，所述底座板的两端设有把手，所述底座板的上端面中间设有直角台，所述直角台的上端设有电流表固定机构，所述底座板的上端面一侧设有用于校准电流表的相关电路组件，所述直角台的侧面上设有支撑相关电路部分导线的导线支撑机构。The present invention is achieved through the following technical solutions: an auxiliary device for calibrating the ammeter, including a base plate, handles are provided at both ends of the base plate, a right-angle platform is arranged in the middle of the upper end surface of the base plate, and the right-angle The upper end of the platform is provided with an ammeter fixing mechanism, the upper end surface of the base plate is provided with relevant circuit components for calibrating the ammeter, and the side of the right-angle platform is provided with a wire support mechanism supporting the wires of relevant circuit parts.
所述相关电路组件包括电源、闸刀件、电阻件和多根连接导线，所述电源、闸刀件和电阻件均安装在底座板上，所述电源通过多根所述连接导线与闸刀件、电阻件连接成闭合的回路；所述电阻件包括多个固定阻值的电阻。The relevant circuit assembly includes a power supply, a switch blade, a resistor and a plurality of connecting wires, and the power supply, the switch blade and the resistor are all installed on the base plate, and the power supply is connected to the switch blade through a plurality of the connecting wires. The components and the resistance components are connected into a closed circuit; the resistance components include a plurality of resistors with fixed resistance values.
优选的，所述导线支撑机构包括设置在直角台侧面上的旋转组件，所述旋转组件的上端和下端分别连接有支撑杆，两个所述连接杆的端部均通过固定套连接有横杆，所述横杆的端部设有用于固定被测连接导线的加持机构。Preferably, the wire support mechanism includes a rotating assembly arranged on the side of the right-angle table, the upper end and the lower end of the rotating assembly are respectively connected to a support rod, and the ends of the two connecting rods are connected to a cross bar through a fixed sleeve , the end of the cross bar is provided with a clamping mechanism for fixing the connected wires to be tested.
优选的，所述加持机构包括固定板和夹板，所述固定板的一端固定连接在横杆的端部，所述夹板设置在固定板的一侧，所述固定板和夹板的相对面上均设有连接凸，所述固定板和夹板上的连接凸通过转轴进行转动连接，且所述转轴上设有扭力弹簧。Preferably, the clamping mechanism includes a fixing plate and a clamping plate, one end of the fixing plate is fixedly connected to the end of the cross bar, the clamping plate is arranged on one side of the fixing plate, and the opposite surfaces of the fixing plate and the clamping plate are both A connecting protrusion is provided, and the fixing plate and the connecting protrusion on the splint are rotatably connected through a rotating shaft, and a torsion spring is arranged on the rotating shaft.
优选的，所述固定板靠近夹板的一侧中间设有弧形槽，所述夹板的中部为向外凸起的弧形状，且固定板和夹板的相对面均作绝缘处理，方便对连接导线的夹取。Preferably, an arc-shaped groove is provided in the middle of the side of the fixing plate close to the splint, the middle part of the splint is in the shape of an arc protruding outward, and the opposite surfaces of the fixing plate and the splint are insulated to facilitate the connection of the connecting wires. of gripping.
优选的，所述旋转组件包括旋转外壳，所述旋转外壳为圆柱形的空心结构，所述旋转外壳的一侧设有连接轴，所述连接轴的一端固定连接在直角台的侧面上，所述连接轴位于旋转外壳一端连接有左卡盘，所述旋转外壳转动套设在连接轴的左卡盘端，所述旋转外壳位于连接轴的连接口处设有与左卡盘匹配的右卡盘，所述左卡盘和右卡盘的相对面上均设有齿槽，所述旋转外壳的内部空腔内设有弹簧，所述弹簧的两端分别顶住左卡盘和旋转外壳的内壁。Preferably, the rotating assembly includes a rotating housing, the rotating housing is a cylindrical hollow structure, one side of the rotating housing is provided with a connecting shaft, and one end of the connecting shaft is fixedly connected to the side of the right-angle platform, so The connecting shaft is located at one end of the rotating shell and is connected with a left chuck. The rotating shell is rotatably set on the left chuck end of the connecting shaft. The opposite surfaces of the left chuck and the right chuck are provided with tooth grooves, and the inner cavity of the rotating housing is provided with a spring, and the two ends of the spring respectively withstand the left chuck and the rotating housing. inner wall.
优选的，所述旋转外壳的外侧壁上设有旋转钮，方便使用者对旋转外壳进行旋转。Preferably, a rotating knob is provided on the outer wall of the rotating housing, which is convenient for the user to rotate the rotating housing.
优选的，所述直角台的侧面上还设有测量支撑杆旋转角度的角度测量器，所述角度测量器呈弧形状，且角度测量器的外表面设有角度刻度线，所述旋转外壳上设有角度指示针，所述指示针的方向和支撑杆的方向平行。Preferably, an angle measurer for measuring the rotation angle of the support rod is also provided on the side of the right-angle platform, the angle measurer is in the shape of an arc, and the outer surface of the angle measurer is provided with an angle scale line. An angle indicator needle is provided, and the direction of the indicator needle is parallel to the direction of the support rod.
优选的，所述旋转外壳的上端支撑杆上设有激光灯，激光灯在工作状态下，灯光照射在角度刻度线上的刻度线上，能够准绝的测量支撑杆旋转的角度。Preferably, a laser light is provided on the support rod at the upper end of the rotating housing. When the laser light is in working state, the light shines on the scale line on the angle scale line to accurately measure the rotation angle of the support rod.
优选的，所述激光灯为LED镭射红外灯。Preferably, the laser lamp is an LED laser infrared lamp.
优选的，所述电流表固定机构包括承载板和滑块，所述直角台的上端面设有滑槽，所述滑块滑动连接在滑槽内，所述滑块的两端设有固定耳，所述固定耳通过固定螺丝将滑块固定在滑槽内，所述承载板的下端和滑块的上端固定连接，所述承载板的上端面两侧设有弹性侧板，所述弹性侧板呈倒置的U形状，所述弹性侧板的一侧壁和承载板连接，且弹性侧板的另一侧壁悬空，使用时，将钳形电流表卡入两个弹性板之间，通过两个弹性板的悬空壁将钳形电流表夹紧。Preferably, the ammeter fixing mechanism includes a bearing plate and a slider, the upper end surface of the right-angle platform is provided with a chute, the slider is slidably connected in the chute, and the two ends of the slider are provided with fixing ears, The fixed ear fixes the slider in the chute through the fixing screw, the lower end of the bearing plate is fixedly connected with the upper end of the slider, and elastic side plates are arranged on both sides of the upper end surface of the bearing plate, and the elastic side plate In the shape of an inverted U, one side wall of the elastic side plate is connected to the bearing plate, and the other side wall of the elastic side plate is suspended in the air. When in use, the clamp ammeter is inserted between the two elastic plates, and the The suspended wall of the elastic plate clamps the clamp ammeter.
本发明相比现有技术具有以下优点：Compared with the prior art, the present invention has the following advantages:
1、本发明通过在底座板上设置校准电流表的相关电路组件，并在直角台上设置固定钳形电流表的电流表固定机构，校准时，将相关电路组件接通，用钳形电流表的钳端套设在连接导线上，通过电流表检测的电流和电源的输出电流进行比较后，作出校准操作，该装置使用方便快捷，校准的准确性高。1. The present invention is provided with the relevant circuit components of the calibration ammeter on the base plate, and the ammeter fixing mechanism of the fixed clamp ammeter is set on the right-angle platform. When calibrating, the relevant circuit components are connected, and the clamp end cover of the clamp ammeter is used It is installed on the connecting wire, and after the current detected by the ammeter is compared with the output current of the power supply, the calibration operation is performed. The device is convenient and quick to use, and the calibration accuracy is high.
2、本发明通过将多个电阻进行串联来改变连接导线上的电流值，进行多次反复校准，增加钳形电流表校准的精确度。2. The present invention changes the current value on the connecting wire by connecting a plurality of resistors in series, and performs multiple repeated calibrations to increase the calibration accuracy of the clamp ammeter.
3、本发明通过在直角板的侧面设置可以旋转角度的导线支撑机构，在直角台的上端设置可以横向一端的电流表固定机构，使得在校准的时候，可以改变检测导线和钳形电流表的角度，从而知晓钳形电流表检测电流和检测导线的角度关系，方便正确的使用钳形电流表。3. In the present invention, a wire supporting mechanism capable of rotating an angle is provided on the side of the right-angle plate, and an ammeter fixing mechanism at one end of the right-angle table is arranged on the upper end of the right-angle platform, so that when calibrating, the angle of the detection wire and the clamp ammeter can be changed. In this way, the angle relationship between the detection current of the clamp ammeter and the detection wire can be known, and it is convenient to use the clamp ammeter correctly.
4、本发明通过按住旋转外壳，使得左卡盘和右卡盘分离，再转动旋转钮，使得旋转外壳带动上下支撑杆旋转，再松开按压的旋转外壳，在弹簧的作用下使得左卡盘和右卡盘再次卡合，将旋转外壳固定，达到改变连接导线的角度，且支撑杆的稳定性强。4. In the present invention, the left chuck and the right chuck are separated by pressing the rotating shell, and then turning the rotary knob, so that the rotating shell drives the upper and lower support rods to rotate, and then releases the pressed rotating shell, and the left chuck is made under the action of the spring. The disk and the right chuck are engaged again to fix the rotating shell to change the angle of the connecting wire, and the stability of the support rod is strong.
5、本发明通过在直角台的侧面上设置角度测量器，并通过指示针和激光灯进行指示角度测量器上的刻度，能够清楚准确的观察到连接导线的旋转角度。5. The present invention can clearly and accurately observe the rotation angle of the connecting wire by setting the angle measuring device on the side of the right-angle table, and indicating the scale on the angle measuring device through the pointer and the laser light.
附图说明Description of drawings
图1为一种校准电流表用的辅助装置的结构示意图；Fig. 1 is the structural representation of a kind of auxiliary device that calibrates ammeter;
图2为一种校准电流表用的辅助装置的工作状态下结构示意图；Fig. 2 is a schematic structural diagram of an auxiliary device for calibrating an ammeter in a working state;
图3为一种校准电流表用的辅助装置中导线支撑机构的结构示意图；Fig. 3 is a structural schematic diagram of a wire support mechanism in an auxiliary device for calibrating an ammeter;
图4为图3中A的放大结构示意图；Fig. 4 is the schematic diagram of the enlarged structure of A in Fig. 3;
图5为一种校准电流表用的辅助装置中旋转组件的结构示意图；Fig. 5 is a structural schematic diagram of a rotating assembly in an auxiliary device for calibrating an ammeter;
图6为一种校准电流表用的辅助装置中电流表固定机构的结构示意图。Fig. 6 is a schematic structural diagram of the ammeter fixing mechanism in an auxiliary device for calibrating the ammeter.
图中标号：1、底座板；2、把手；3、直角台；4、电流表固定机构；41、承载板；42、弹性侧板；43、滑块；44、固定螺丝；5、滑槽；6、导线支撑机构；61、旋转组件；611、旋转外壳；612、旋转钮；613、左卡盘；614、连接轴；615、右卡盘；616、弹簧；62、支撑杆；63、固定套；64、横杆；65、夹持机构；651、固定板；652、夹板；653、连接凸；654、转轴；66、指示针；67、激光灯；7、闸刀件；8、电源；9、电阻件；10、角度测量器；11、钳形电流表；12、连接导线。Symbols in the figure: 1, base plate; 2, handle; 3, right-angle platform; 4, ammeter fixing mechanism; 41, load plate; 42, elastic side plate; 43, slider; 44, fixing screw; 5, chute; 6. Wire support mechanism; 61. Rotating assembly; 611. Rotating shell; 612. Rotating knob; 613. Left chuck; 614. Connecting shaft; 615. Right chuck; 616. Spring; 62. Support rod; 63. Fixed Set; 64, crossbar; 65, clamping mechanism; 651, fixed plate; 652, splint; 653, connecting convex; 654, rotating shaft; 66, indicator needle; 67, laser light; 7, gate blade; 8, power supply ; 9. Resistor; 10. Angle measuring device; 11. Clamp ammeter; 12. Connecting wire.
具体实施方式Detailed ways
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，所描述的实施例仅仅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做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。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
实施例一Embodiment one
请参阅图1-4，一种校准电流表用的辅助装置，包括底座板1，底座板1的两端设有把手2，底座板1的上端面中间设有直角台3，直角台3的上端设有电流表固定机构4，底座板1的上端面一侧设有用于校准电流表的相关电路组件，直角台3的侧面上设有支撑相关电路部分导线的导线支撑机构6；相关电路组件包括电源8、闸刀件7、电阻件9和多根连接导线12，电源8、闸刀件7和电阻件9均安装在底座板1上，电源8通过多根连接导线12与闸刀件7、电阻件9连接成闭合的回路；电阻件9包括多个固定阻值的电阻。Please refer to Figure 1-4, an auxiliary device for calibrating the ammeter, including a base plate 1, handles 2 are provided at both ends of the base plate 1, a right-angle platform 3 is arranged in the middle of the upper end surface of the base plate 1, and the upper end of the right-angle platform 3 An ammeter fixing mechanism 4 is provided, and relevant circuit components for calibrating the ammeter are provided on one side of the upper end surface of the base plate 1, and a wire supporting mechanism 6 for supporting the wires of relevant circuit parts is provided on the side of the right-angle platform 3; the relevant circuit components include a power supply 8 , switch blade part 7, resistor part 9 and many connecting wires 12, power supply 8, switch blade part 7 and resistor part 9 are all installed on the base plate 1, power supply 8 is connected with switch blade part 7, resistor through multiple connecting wires 12 The element 9 is connected into a closed circuit; the resistance element 9 includes a plurality of resistors with fixed resistance.
使用时，将已知电压值为U0的电源8和已知电阻值为R0的电阻件9通过连接导线12和闸刀件7串联，利用导线支撑机构6将部分连接导线12垂直支撑起来，将钳形电流表11固定在直角台3的电流表固定机构4上，使得钳形电流表11的钳端垂直的套设在连接导线12外侧，钳形电流表11测量连接导线12上的电流值I；When in use, the power supply 8 with a known voltage value ofU0 and the resistor element 9 with a known resistance value ofR0 are connected in series through the connection wire 12 and the switch blade part 7, and part of the connection wire 12 is vertically supported by the wire support mechanism 6. , the clamp ammeter 11 is fixed on the ammeter fixing mechanism 4 of the right-angle platform 3, so that the clamp end of the clamp ammeter 11 is vertically sleeved on the outside of the connecting wire 12, and the clamp ammeter 11 measures the current value I on the connecting wire 12;
通过欧姆定律可以算出连接导线上的电流：I0＝U0/R0；The current on the connecting wire can be calculated by Ohm's law: I0 = U0 /R0 ;
再将钳形电流表11检测的电流值I和I0进行比较，来对钳形电流表11进行校准；由于将相关电路的组件和钳形电流表11均固定在底座板1上，使用的时候只需要将底座板1的整体拿出来，将其电路接通，把连接导线12固定到支撑杆上，便可进行检测校准，使得钳形电流表11校准时操作方便，且准确性高。Then the current value I detected by the clamp ammeter 11 is compared with I0 to calibrate the clamp ammeter 11; because the components of the relevant circuit and the clamp ammeter 11 are all fixed on the base plate 1, only need Take out the whole of the base plate 1, connect its circuit, fix the connecting wire 12 on the support rod, and then perform detection and calibration, so that the clamp ammeter 11 is easy to operate and has high accuracy when calibrating.
导线支撑机构6包括设置在直角台3侧面上的旋转组件61，旋转组件61的上端和下端分别连接有支撑杆62，两个连接杆的端部均通过固定套63连接有横杆64，横杆64的端部设有用于固定被测连接导线12的夹持机构65。The wire support mechanism 6 includes a rotating assembly 61 arranged on the side of the right-angle platform 3, the upper end and the lower end of the rotating assembly 61 are respectively connected with a support rod 62, and the ends of the two connecting rods are connected with a cross bar 64 through a fixed sleeve 63. The end of the rod 64 is provided with a clamping mechanism 65 for fixing the connecting wire 12 to be tested.
夹持机构65包括固定板651和夹板652，固定板651的一端固定连接在横杆64的端部，夹板652设置在固定板651的一侧，固定板651和夹板652的相对面上均设有连接凸653，固定板651和夹板652上的连接凸653通过转轴654进行转动连接，且转轴654上设有扭力弹簧616。The clamping mechanism 65 includes a fixed plate 651 and a clamping plate 652, one end of the fixed plate 651 is fixedly connected to the end of the cross bar 64, the clamping plate 652 is arranged on one side of the fixed plate 651, and the opposite surfaces of the fixed plate 651 and the clamping plate 652 are provided with There is a connecting protrusion 653, and the fixing plate 651 and the connecting protrusion 653 on the splint 652 are connected in rotation through the rotating shaft 654, and the rotating shaft 654 is provided with a torsion spring 616.
固定板651靠近夹板652的一侧中间设有弧形槽，夹板652的中部为向外凸起的弧形状，且固定板651和夹板652的相对面均作绝缘处理；An arc-shaped groove is arranged in the middle of the side of the fixing plate 651 close to the splint 652, and the middle part of the splint 652 is in the shape of an arc protruding outward, and the opposite surfaces of the fixing plate 651 and the splint 652 are insulated;
通过按压夹板652的一端，使得夹板652的夹取端翘起，将连接导线12放置在弧形槽内，方便对连接导线12的夹取。By pressing one end of the clamping plate 652, the clamping end of the clamping plate 652 is lifted, and the connecting wire 12 is placed in the arc-shaped groove, which is convenient for clamping the connecting wire 12 .
实施例二Embodiment two
请参阅图5和6，本实施例是在实施例一的基础上增加如下方案，旋转组件61包括旋转外壳611，旋转外壳611为圆柱形的空心结构，旋转外壳611的一侧设有连接轴614，连接轴614的一端固定连接在直角台3的侧面上，连接轴614位于旋转外壳611一端连接有左卡盘613，旋转外壳611转动套设在连接轴614的左卡盘613端，旋转外壳611位于连接轴614的连接口处设有与左卡盘613匹配的右卡盘615，左卡盘613和右卡盘615的相对面上均设有齿槽，旋转外壳611的内部空腔内设有弹簧616，弹簧616的两端分别顶住左卡盘613和旋转外壳611的内壁。Please refer to Figures 5 and 6, this embodiment adds the following solution on the basis of Embodiment 1, the rotating assembly 61 includes a rotating housing 611, the rotating housing 611 is a cylindrical hollow structure, and one side of the rotating housing 611 is provided with a connecting shaft 614, one end of the connecting shaft 614 is fixedly connected on the side of the right angle platform 3, the connecting shaft 614 is located at one end of the rotating housing 611 and is connected with a left chuck 613, and the rotating housing 611 is rotatably sleeved at the left chuck 613 end of the connecting shaft 614, rotating The housing 611 is located at the connecting port of the connecting shaft 614 and is provided with a right chuck 615 matching the left chuck 613. The opposite surfaces of the left chuck 613 and the right chuck 615 are provided with tooth grooves, and the inner cavity of the rotating housing 611 A spring 616 is arranged inside, and the two ends of the spring 616 withstand the inner wall of the left chuck 613 and the rotating housing 611 respectively.
旋转外壳611的外侧壁上设有旋转钮612，方便使用者对旋转外壳611进行旋转。A rotating knob 612 is provided on the outer wall of the rotating housing 611 to facilitate the user to rotate the rotating housing 611 .
直角台3的侧面上还设有测量支撑杆62旋转角度的角度测量器10，角度测量器10呈弧形状，且角度测量器10的外表面设有角度刻度线，旋转外壳611上设有角度指示针66，指示针66的方向和支撑杆62的方向平行。The side of the right-angle platform 3 is also provided with an angle measuring device 10 for measuring the angle of rotation of the support rod 62. The angle measuring device 10 is arc-shaped, and the outer surface of the angle measuring device 10 is provided with an angle scale line, and the rotating shell 611 is provided with an angle measuring device 10. An indicator needle 66 , the direction of the indicator needle 66 is parallel to the direction of the support rod 62 .
旋转外壳611的上端支撑杆62上设有激光灯67，激光灯67在工作状态下，灯光照射在角度刻度线上的刻度线上，能够准绝的测量支撑杆62旋转的角度。所述激光灯为LED镭射红外灯。The upper support rod 62 of the rotating housing 611 is provided with a laser light 67. When the laser light 67 is in operation, the light is irradiated on the scale line on the angle scale line, and the angle of rotation of the support rod 62 can be accurately measured. The laser lamp is an LED laser infrared lamp.
电流表固定机构4包括承载板41和滑块43，直角台3的上端面设有滑槽5，滑块43滑动连接在滑槽5内，滑块43的两端设有固定耳，固定耳通过固定螺丝44将滑块43固定在滑槽5内，承载板41的下端和滑块43的上端固定连接，承载板41的上端面两侧设有弹性侧板42，弹性侧板42呈倒置的U形状，弹性侧板42的一侧壁和承载板41连接，且弹性侧板42的另一侧壁悬空，使用时，将钳形电流表11卡入两个弹性板之间，通过两个弹性板的悬空壁将钳形电流表11夹紧。The ammeter fixing mechanism 4 includes a bearing plate 41 and a slide block 43. The upper end surface of the right-angle platform 3 is provided with a chute 5, and the slide block 43 is slidably connected in the chute 5. The two ends of the slide block 43 are provided with fixed ears, and the fixed ears pass through The fixing screw 44 fixes the slider 43 in the chute 5, the lower end of the bearing plate 41 is fixedly connected with the upper end of the slider 43, and elastic side plates 42 are arranged on both sides of the upper end surface of the bearing plate 41, and the elastic side plates 42 are inverted. U-shaped, one side wall of the elastic side plate 42 is connected to the bearing plate 41, and the other side wall of the elastic side plate 42 is suspended in the air. The freestanding walls of the plate clamp the ammeter clamp 11 .
使用时，通过按住旋转外壳611，使得左卡盘613和右卡盘615分离，再转动旋转钮612，使得旋转外壳611外壳带动上下支撑杆62旋转，再松开按压的旋转外壳611，在弹簧616的作用下使得左卡盘613和右卡盘615再次卡合，将旋转外壳611固定，达到改变连接导线12的角度，且支撑杆62的稳定性强；并通过在直角台3的侧面上设置角度测量器10，并通过指示针66和激光灯67进行指示角度测量器10上的刻度，能够清楚准确的观察到连接导线12的旋转角度；同时，移动滑块43在滑槽5内的位置，使得连接导线12发生角度变化时钳形电流表11的钳端在始终套设在连接导线12的外侧，而不与连接导线12发生接触，并观察此时钳形电流表11上的电流值，从而知晓钳形电流表11检测电流和检测导线穿过钳端角度的变化关系，方便正确的使用钳形电流表11。When in use, press and hold the rotating shell 611 to separate the left chuck 613 from the right chuck 615, then turn the rotary knob 612 so that the rotating shell 611 drives the upper and lower support rods 62 to rotate, and then release the pressed rotating shell 611. Under the action of the spring 616, the left chuck 613 and the right chuck 615 are engaged again, and the rotating housing 611 is fixed to change the angle of the connecting wire 12, and the stability of the support rod 62 is strong; The angle measuring device 10 is arranged on the top, and the scale on the angle measuring device 10 is indicated by the indicator needle 66 and the laser light 67, so that the rotation angle of the connecting wire 12 can be clearly and accurately observed; at the same time, the moving slider 43 is in the chute 5 position, so that when the angle of the connecting wire 12 changes, the clamp end of the clamp ammeter 11 is always sleeved on the outside of the connecting wire 12, and does not come into contact with the connecting wire 12, and observe the current value on the clamp ammeter 11 at this time , so as to know the change relationship between the detection current of the clamp ammeter 11 and the angle of the detection wire passing through the clamp end, and it is convenient to use the clamp ammeter 11 correctly.
工作原理：本发明通过在底座板1上设置校准电流表的相关电路组件，并在直角台3上设置固定钳形电流表11的电流表固定机构4，校准时，将相关电路组件接通，用钳形电流表11的钳端套设在连接导线12上，通过电流表的检测电流和电源8的输出电流进行比较后，作出校准操作，使用方便快捷。本发明通过将多个电阻进行串联来改变连接导线12上的电流值，进行多次反复校准，增加钳形电流表11校准的精确度；通过在直角板的侧面设置可以旋转角度的导线支撑机构6，在直角台3的上端设置可以横向一端的电流表固定机构4，使得在校准的时候，可以改变检测导线和钳形电流表11的角度，从而知晓钳形电流表11检测电流和检测导线的角度关系，方便正确的使用钳形电流表11；通过按住旋转外壳611，使得左卡盘613和右卡盘615分离，再转动旋转钮612，使得旋转外壳611外壳带动上下支撑杆62旋转，再松开按压的旋转外壳611，在弹簧616的作用下使得左卡盘613和右卡盘615再次卡合，将旋转外壳611固定，达到改变连接导线12的角度，且支撑杆62的稳定性强；通过在直角台3的侧面上设置角度测量器10，并通过指示针66和激光灯67进行指示角度测量器10上的刻度，能够清楚准确的观察到连接导线12的旋转角度。Working principle: the present invention sets relevant circuit components for calibrating the ammeter on the base plate 1, and sets the ammeter fixing mechanism 4 for fixing the clamp ammeter 11 on the right-angle platform 3. When calibrating, connect the relevant circuit components and use the clamp The clamp end of the ammeter 11 is sleeved on the connecting wire 12, and after comparing the detection current of the ammeter with the output current of the power supply 8, a calibration operation is performed, which is convenient and quick to use. The present invention changes the current value on the connecting wire 12 by connecting a plurality of resistors in series, performs multiple repeated calibrations, and increases the calibration accuracy of the clamp ammeter 11; by setting a wire support mechanism 6 that can rotate an angle on the side of the right-angle plate , the upper end of the right-angle platform 3 is provided with an ammeter fixing mechanism 4 that can be horizontally one end, so that when calibrating, the angle of the detection wire and the clamp ammeter 11 can be changed, so as to know the angle relationship between the detection current of the clamp ammeter 11 and the detection wire, It is convenient and correct to use the clamp ammeter 11; by pressing the rotating shell 611, the left chuck 613 and the right chuck 615 are separated, and then turning the rotating knob 612, so that the rotating shell 611 drives the upper and lower support rods 62 to rotate, and then release the pressing Under the action of the spring 616, the left chuck 613 and the right chuck 615 are engaged again, and the rotating housing 611 is fixed to change the angle of the connecting wire 12, and the stability of the support rod 62 is strong; An angle measuring device 10 is arranged on the side of the right-angle table 3, and the scale on the angle measuring device 10 is indicated by the pointer 66 and the laser light 67, so that the rotation angle of the connecting wire 12 can be clearly and accurately observed.
上面结合附图对本发明优选实施方式作了详细说明，但是本发明不限于上述实施方式，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下做出各种变化，这些变化涉及本领域技术人员所熟知的相关技术，这些都落入本发明专利的保护范围。The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and can also be made within the scope of knowledge of those of ordinary skill in the art without departing from the gist of the present invention. These changes involve related technologies well known to those skilled in the art, and these all fall within the protection scope of the patent of the present invention.
不脱离本发明的构思和范围可以做出许多其他改变和改型。应当理解，本发明不限于特定的实施方式，本发明的范围由所附权利要求限定。Many other changes and modifications can be made without departing from the spirit and scope of the present invention. It should be understood that the invention is not limited to the particular embodiments, but that the scope of the invention is defined by the appended claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111336219.5ACN114062999B (en) | 2021-11-12 | 2021-11-12 | Auxiliary device for calibrating ammeter |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111336219.5ACN114062999B (en) | 2021-11-12 | 2021-11-12 | Auxiliary device for calibrating ammeter |
| Publication Number | Publication Date |
|---|---|
| CN114062999A CN114062999A (en) | 2022-02-18 |
| CN114062999Btrue CN114062999B (en) | 2023-08-01 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111336219.5AActiveCN114062999B (en) | 2021-11-12 | 2021-11-12 | Auxiliary device for calibrating ammeter |
| Country | Link |
|---|---|
| CN (1) | CN114062999B (en) |
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| CN119667247B (en)* | 2024-11-06 | 2025-09-09 | 泰兴市昇耀精密机械有限公司 | Micro-current detection ammeter with auxiliary calibration device |
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