Background technique
The voltage of optical receiver is 1 volt when pervious peristaltic pump adds in the quartz ampoule of fluid detection meter without fluid,When having fluid and turbidity is low, the voltage of optical receiver is 1.5~2V, and it is that optical receiver detects fluid that 1.3V, which is usually arranged,Threshold voltage, when optical receiver detect voltage be greater than threshold values 1.3V when, meter, which is set to, detects fluid；But there is fluidAnd turbidity it is high when optical receiver voltage can be less than or equal to 1V, the voltage of optical receiver does not reach threshold values, meter at this timeIt can not just detect fluid.
In order to solve the problems, a kind of fluid meter, including photoinduction circuit plate or photoinduction mould are just proposedThe inlet and consolidate that block, peristaltic pump, the pump line for being connected to peristaltic pump, metrology frame, top connection, lower contact, permission fluid enterSurely the quartz ampoule being set in metrology frame is fixed with the optical transmitting set and light-receiving being in contact with quartz ampoule in the metrology frameDevice, one end of the top connection and quartz ampoule top are connected, and the other end of the top connection is connected with one end of pump line,One end of the lower contact is connected with the bottom of quartz ampoule, and the other end of the lower contact is connected with inlet, the light hairEmitter and optical receiver are all connected to provide operating current for optical transmitting set and optical receiver and acquire optical receiver in real timeThe photoinduction circuit plate or photoinduction module of voltage signal.
When peristaltic pump operates, and generates negative pressure, fluid is entered in quartz ampoule by inlet；When fluid level rises toWhen optical receiver present position, optical receiver exports low level, and peristaltic pump shuts down, and carries out the metering of fluid.
The optical receiver detects that the threshold voltage of fluid is 0.6V, optical receiver when in quartz ampoule without fluidVoltage be 2 volts, when in quartz ampoule with the first turbidity fluid when optical receiver voltage be 0.2~0.4V, work as stoneThe voltage of optical receiver is 0.1~0.3V when having the fluid of second of turbidity in English pipe.
When the voltage that optical receiver 10 detects is less than threshold values 0.6V, meter detects fluid；Work as light-receivingWhen the voltage that device 10 detects is greater than threshold values 0.6V, meter can't detect fluid.
When peristaltic pump negative pressure sucks fluid, air cushion area is formed between fluid and pump line.
By the way that optoelectronic transceiver device to be arranged in the inside of shell, convenient for controlling its operating temperature, temperature fluctuation pair is reducedIt is influenced caused by measurement data, to improve the accuracy of data；Meanwhile second solenoid valve is directly connected to digestion tube, rather thanIt is connected to by connecting tube, reduce the interior analysis substance of digestion tube distributes space, improves the accuracy of data.
The fluid meter measures fluid by optical transmitting set, optical receiver, and structure is simple, accurate measurement, andAnd the metering of fluid is not influenced by fluid turbidity.
Photoemitter or photelectric receiver are to be fixed on metrology frame by the component that is spirally connected, and existing be spirally connected component simultaneouslyBe not suitable for being used in the fixed photoemitter of metrology frame or photelectric receiver.
Summary of the invention
To solve the above problems, being effectively prevented in the prior art the present invention provides a kind of firm type fluid meterThe existing component that is spirally connected is not appropriate for for the defect in metrology frame fixed photoemitter and photelectric receiver.
A kind of solution of firm type fluid meter in order to overcome the deficiencies in the prior art, the present invention provides,It is specific as follows:
A kind of firm type fluid meter, including photoinduction circuit plate or photoinduction module 1, peristaltic pump 2, be connected to it is compactedThe inlet 8 and be fixedly installed on metrology frame that the pump line 3 of dynamic pump 2, metrology frame 4, top connection 5, lower contact 6 allow fluid to enterIn quartz ampoule 7, be fixed with the optical transmitting set 9 and optical receiver 10 being in contact with quartz ampoule 7 in the metrology frame, it is described onOne end of connector 5 is connected with the top of quartz ampoule 7, and the other end of the top connection 5 is connected with one end of pump line 3, instituteThe one end for stating lower contact 6 is connected with the bottom of quartz ampoule 7, and the other end of the lower contact 6 is connected with inlet 8, the lightTransmitter 9 and optical receiver 10 are all connected to provide operating current for optical transmitting set 9 and optical receiver 10 and acquire light in real timeThe photoinduction circuit plate or photoinduction module 1 of the voltage signal of receiver 10；
The photoemitter for being fixed on metrology frame or photelectric receiver are by interlocking part come the same photoelectricity of metrology frameWhat transmitter or photelectric receiver were halved together；
The interlocking part contain integration be connected to it is more than two embedding on photoemitter or photelectric receiver oneFishplate bar item and the integrated more than two interlocking laths being connected on the wall surface of metrology frame；And the one of each interlocking lathSide wall is equipped with the first protrusion and the second protrusion；One side wall of first protrusion is equipped with scarf joint L1, second protrusionA side wall be equipped with the interlocking mouth L2 arranged side by side with the scarf joint L1 phase, another side wall of first protrusion is the same as described secondThe compatible access port for being used to protrude into protrusion with first protrusion is constituted between one side wall of protrusion；
The interlocking lath is equipped with more than two positioning port L3；
Rabbet in the scarf joint L1 of the interlocking lath of the metrology frame into the embedding of the photoemitter or photelectric receiverWhen in the interlocking mouth L2 of fishplate bar item, the scarf joint L1 of the interlocking lath of the photoemitter or photelectric receiver rabbets into describedIn the interlocking mouth L2 of the interlocking lath of metrology frame, the first protrusion of the interlocking lath of the metrology frame puts in the photoemissionDevice or photelectric receiver are used to protrude into the access port of protrusion, the interlocking lath of the photoemitter or photelectric receiverFirst protrusion puts in the metrology frame and is used to protrude into the access port of protrusion, the photoemitter or photelectric receiver it is embeddingFishplate bar item and the interlocking lath of the metrology frame strain；The scarf joint L1 of the interlocking lath of the metrology frame rabbet intoAfter in the interlocking mouth L2 of the interlocking lath of the photoemitter or photelectric receiver, the photoemitter or photelectric receiverInterlocking lath and the metrology frame interlocking lath restore.
The present invention the photoemitter that metrology frame is set or photelectric receiver with metrology frame by interlocking part comeWhen interlocking, not only need scarf joint L1 and rabbet the combination of mouth L2, it is also desirable to the photoemitter or photelectric receiver it is embeddingFishplate bar item and the interlocking lath of the metrology frame occur straining to realize scarf joint L1 and rabbet the interlocking of mouth L2, scarf joint L1After interlocking with interlocking mouth L2 is realized, the interlocking lath of the photoemitter or photelectric receiver is embedding with the metrology frameScarf joint L1 and interlocking mouth L2 positioning are got up in the reduction of fishplate bar item, and the scarfing plate of the photoemitter or photelectric receiverItem and the interlocking lath of the metrology frame lean on the elasticity of itself, in the photoemitter or the interlocking lath of photelectric receiverWhen being affixed with the interlocking lath of the metrology frame, the interlocking lath of the photoemitter or photelectric receiver and the meteringThe interlocking lath of frame strains, the interlocking of the interlocking lath and the metrology frame of the photoemitter or photelectric receiverAfter lath is all rabbeted well, the interlocking lath of the interlocking lath and the metrology frame of the photoemitter or photelectric receiverThus reduction allows the photoemitter or the interlocking lath of photelectric receiver and the interlocking lath positioning of the metrology frame firmBy being coupled.
Specific embodiment
The present invention is described further below in conjunction with attached drawing.
1- Figure 16 is it is found that a kind of firm type fluid meter of the invention with reference to the accompanying drawings, including photoinduction circuit plate or lightInduction module 1, peristaltic pump 2, the pump line 3 for being connected to peristaltic pump 2, metrology frame 4, top connection 5, lower contact 6 allow fluid to enterInlet 8 and the quartz ampoule 7 being fixedly installed in metrology frame are fixed with the light being in contact with quartz ampoule 7 in the metrology frameOne end of transmitter 9 and optical receiver 10, the top connection 5 is connected with the top of quartz ampoule 7, the top connection 5 it is anotherEnd be connected with one end of pump line 3, one end of the lower contact 6 is connected with the bottom of quartz ampoule 7, the lower contact 6 it is anotherOne end is connected with inlet 8, and the optical transmitting set 9 and optical receiver 10 are all connected to mention for optical transmitting set 9 and optical receiver 10The photoinduction circuit plate or photoinduction module 1 of the voltage signal of optical receiver 10 are acquired for operating current and in real time.Work as wriggling2 operating of pump, when generating negative pressure, fluid is entered in quartz ampoule 7 by inlet 8, when 2 negative pressure of peristaltic pump sucks fluid,Air cushion area is formed between fluid and pump line 3, is avoided the corrosion of pump line 3, is extended the service life of peristaltic pump 2.
Fluid meter of the present invention measures fluid by optical transmitting set 9, optical receiver 10, and structure is simple, meteringAccurately, low in cost.When fluid level rises to 10 present position of optical receiver, optical receiver 10 exports low level, wrigglesPump 2 shuts down, and carries out the metering of fluid.The voltage of optical receiver 10 is 2 volts when in quartz ampoule 7 without fluid, works as stoneThe voltage of optical receiver 10 is 0.2~0.4V when English pipe 7 has turbidity low fluid, when having turbidity in quartz ampoule 7The voltage of optical receiver 10 is 0.1~0.3V when high fluid.Unlike the prior art, the measurement that the present invention usesMode is that, when the voltage that optical receiver 10 detects is less than threshold values 0.6, fluid meter can just detect fluid, when light connectsWhen the voltage that receipts device 10 detects is greater than threshold values 0.6, fluid meter can't detect fluid.Because when the stream for having the first turbidityThe voltage of body optical receiver 10 is 0.2~0.4V, and optical receiver 10 detects that the threshold voltage of fluid is 0.6V, that is,When saying that optical receiver 10 detects that voltage is less than threshold values 0.6V, meter is able to detect that fluid；When there is second of turbidityThe voltage of optical receiver 10 is 0.1~0.3V when the fluid of (turbidity is high).
The photoemitter for being fixed on metrology frame or photelectric receiver are by interlocking part come the same photoelectricity of metrology frameWhat transmitter or photelectric receiver were halved together；
The interlocking part contain integration be connected to it is more than two embedding on photoemitter or photelectric receiver oneFishplate bar item and the integrated more than two interlocking laths being connected on the wall surface of metrology frame；And the one of each interlocking lathSide wall is equipped with the first protrusion and the second protrusion；One side wall of first protrusion is equipped with scarf joint L1, second protrusionA side wall be equipped with the interlocking mouth L2 arranged side by side with the scarf joint L1 phase, another side wall of first protrusion is the same as described secondThe compatible access port for being used to protrude into protrusion with first protrusion is constituted between one side wall of protrusion；
The interlocking lath is equipped with more than two positioning port L3；
Rabbet in the scarf joint L1 of the interlocking lath of the metrology frame into the embedding of the photoemitter or photelectric receiverWhen in the interlocking mouth L2 of fishplate bar item, the scarf joint L1 of the interlocking lath of the photoemitter or photelectric receiver rabbets into describedIn the interlocking mouth L2 of the interlocking lath of metrology frame, the first protrusion of the interlocking lath of the metrology frame puts in the photoemissionDevice or photelectric receiver are used to protrude into the access port of protrusion, the interlocking lath of the photoemitter or photelectric receiverFirst protrusion puts in the metrology frame and is used to protrude into the access port of protrusion, the photoemitter or photelectric receiver it is embeddingFishplate bar item and the interlocking lath of the metrology frame strain；The scarf joint L1 of the interlocking lath of the metrology frame rabbet intoAfter in the interlocking mouth L2 of the interlocking lath of the photoemitter or photelectric receiver, the photoemitter or photelectric receiverInterlocking lath and the metrology frame interlocking lath restore.
The scarf joint L1 of the metrology frame has same center line with the interlocking mouth L2 of the metrology frame.
The positioning port L3 is cylindric or polygon prism shape.
Rabbet in the scarf joint L1 of the interlocking lath of the metrology frame into the embedding of the photoemitter or photelectric receiverWhen in the interlocking mouth L2 of fishplate bar item, and the scarf joint L1 of the interlocking lath of the photoemitter or photelectric receiver rabbets into instituteWhen stating in the interlocking mouth L2 of the interlocking lath of metrology frame, the interlocking lath and the photoemitter or photoelectricity of the metrology frameIt is pin-jointed structure between the interlocking lath of receiver.
The interlocking lath of the interlocking scarf joint L1 of lath of the metrology frame, the photoemitter or photelectric receiverInterlocking mouth L2, the photoemitter or photelectric receiver interlocking lath scarf joint L1 and the metrology frame it is embeddingThe interlocking mouth L2 of fishplate bar item is cylindric or strip.The firm type fluid meter also contains attachment L5, the attachment L5'sOne is halved together with the positioning port L3.
Pass through interlocking part with metrology frame in the photoemitter that metrology frame is arranged in or photelectric receiver
When rabbeting, not only to need scarf joint L1 and rabbet the combination of mouth L2, it is also desirable to the photoemitter or photoelectricityThe interlocking lath of receiver and the interlocking lath of the metrology frame occur straining to realize scarf joint L1 and rabbet the embedding of mouth L2Connect, scarf joint L1 and interlocking mouth L2 interlocking realize after, the interlocking lath of the photoemitter or photelectric receiver with it is describedThe interlocking lath of metrology frame restores, and scarf joint L1 and interlocking mouth L2 positioning are got up, and the photoemitter or opto-electronic receiverThe interlocking lath of device and the interlocking lath of the metrology frame lean on the elasticity of itself, in the photoemitter or photelectric receiverInterlocking lath and the interlocking lath of metrology frame when being affixed, the interlocking lath of the photoemitter or photelectric receiverIt is strained with the interlocking lath of the metrology frame, the interlocking lath and the meter of the photoemitter or photelectric receiverAfter the interlocking lath whole interlocking well for measuring frame, the interlocking lath of the photoemitter or photelectric receiver and the metrology frameThe reduction of interlocking lath, thus allow the photoemitter or photelectric receiver interlocking lath and the metrology frame interlockingLath positions firm connection.More than two positioning port L3 of the interlocking lath can rabbet more attachmentes, be more convenient for being coupled.
In practical application, in order to save space, one end for being connected to metrology frame that quartz ampoule is firm is generally required, it is describedThe mode of metrology frame one end connection quartz ampoule is that quartz ampoule silk is connected to described metrology frame one end by Threaded Connector Coupling, has this in this wayThe defect of sample:
Being screwed into from high to low during execution is not easy namely silk connects, release when silk connects to back-out from low to high, in this wayProcess be not easy to execute；Silk socket part must must protrude the outer wall in the metrology frame, and protruding portion is not often small, and shared region is alsoIt is not small；In addition itself recoverable strain is relied on, construction diversification is insufficient, constructs also not pleasing.
Integration is connected to supporting table F10 on the wall surface of described metrology frame one end；
Integration is connected to locating piece F30 on the wall surface of the quartz ampoule, and the supporting table F10 is connected with locating piece F30It connects；
It is provided with positioning port F11 on the supporting table F10, the interlocking of scarfing body F20 is also connected on the supporting table F10Portion F21, the scarfing unit F21 contain to be pierced into inside positioning port F11 and can be in positioning port along the centerline direction of positioning port F12The the first built-in brick F211 swung between the first site and the second site that set in F12, first site is away from the center lineDistance of the distance than the second site away from the center line it is shorter.
The locating piece F30, which contains, to be penetrated into the positioning port F11 and can revolve between site is opened in an interlocking site and one pointDynamic more than one second built-in brick F31, the second built-in brick F31 contain for the embedding of the first built-in brick F211 interlockingConnector F311.
The second built-in brick F31 is when rabbeting site, the first built-in brick F211 same scarf joint at the first siteF311 is halved together, and avoids the second built-in brick F31 by separating in the positioning port F11；The second built-in brick F31 is in separated positionWhen point, the first built-in brick F211 is separated at the second site with scarf joint F311 phase, can allow the second built-in brick F31 in this wayIt realizes by being separated in the positioning port F11.
The supporting table F10 contains upper support board F12 and lower support plate F13, and the positioning port F11 is provided with describedOn upper support board F12, the supporting table F10 is embedded in the wall surface of described metrology frame one end, and the positioning port F11 is made to existOutside.
The scarfing body F20 contains a pair of of scarfing unit F21 that mirror image is distributed in the both sides the positioning port F11, and there are also respectivelyEach scarfing unit F21 is located at the spiral helicine first rubber strip F22 between the upper support board F12, the scarfing unit F21 is sameFirst rubber strip F22 is clamped between upper support board F12 and lower support plate F13, and the scarfing unit F21 can be allowed in the first siteIt is moved back and forth between the second site, the first rubber strip F22 is connected to apply the scarfing unit F21 with the scarfing unit F21Add the reactivation for maintaining the first site.
The supporting table F10 also can only contain upper support board F12, be connected to via upper support board F12 integrationOn the wall surface of described metrology frame one end.
Each first built-in brick F211 is maintained with the first rubber strip F22 of a pair is had between the upper support board F12Stabilization of the scarfing unit F21 under external action；The first built-in brick F211 penetrates into the head band in the positioning port F11There are the guide part F2111 for being oriented to that the second built-in brick F31 penetrates into the positioning port F11, the guide part F2111 to containThere is same level face to keep the face or curved portion of inclination.
The second built-in brick of a pair F31, the second built-in brick F31 that the locating piece F30 contains mirror image distribution are arc ringShape, it also can be the framework being tied that a pair of second built-in brick F31, which can be separated framework,.
The scarf joint F311 contain be opened in the first built-in brick F211 it is facing on one side on interlocking mouthThe week edge of F3111, the second built-in brick F31 are connected to keep inclination with the guide pad F2111 opposite same level faceFace.During assembling the locating piece F30, the same level face on the second built-in brick F31 keeps the same institute of face of inclinationThe guide pad F2111 stated on the first built-in brick F211 is in contact, and the first built-in brick F211 is pressed against institute from the first siteThe second site is stated, no small region is constituted and the second built-in brick F31 is allowed to enter in the positioning port F11, in second interlockingBlock F31 enter after, the first built-in brick F211 run under the cooperation of the first rubber strip F22 the first site with it is describedInterlocking mouth F3111 is halved together, and is more avoided that the second built-in brick F31 is separated in this way, realizes to the locating piece F30 alsoWith the effect for stablizing connection of the quartz ampoule of its integration connection.
The first built-in brick F211 is provided with opening F2112, the interlocking with the opposite head the second built-in brick F31It is coupled the bracing beam F3112 plugged for same opening F2112 in mouth F3111, avoids the problem that turn occurs.In separated instituteDuring stating locating piece F30, quartz ampoule described in turn allows the second built-in brick F31 from interlocking site turn to separated site, thisFirst built-in brick F211 described in sample returns former to the first site, the interlocking of the second built-in brick F31 after running towards the second siteHead F311 allows the second built-in brick F31 to separate with the first built-in brick F211 phase shift.
The scarfing unit F21 and the second built-in brick F31 can quantity be only 1, the surface in the positioning port F11 be courtThe flaring shape structure of the inside, the locating piece F30 are same level face with the opposite edge surface in the surface in the positioning port F11It keeps the surface of inclination and matches with the surface in the positioning port F11, in this way in the same scarfing unit of the second built-in brick F31After F21 is halved together, the edge surface of the locating piece F30 is combined with the surface in positioning port F11 to avoid institute togetherLocating piece F30 is stated to separate.
The present invention is described in a manner of Detailed description of the invention above, it will be understood by those of skill in the art that the disclosureIt is not limited to embodiments described above, in the case of without departing from the scope of the present invention, can make a variety of changes, change and replaceIt changes.