CN210346741U

CN210346741U - Measuring instrument testing device

Info

Publication number: CN210346741U
Application number: CN201921296403.XU
Authority: CN
Inventors: 徐道平; 尚正华; 黄敦应
Original assignee: Shanghai Chang'e Optical Equipment & Instrument Technology Co ltd
Current assignee: Shanghai Chang'e Optical Equipment & Instrument Technology Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-04-17
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a measuring device testing arrangement, it includes the casing, clamping mechanism, detection mechanism and slewing mechanism, the casing has the holding chamber, clamping mechanism, detection mechanism and slewing mechanism all set up in the holding intracavity, clamping mechanism is connected with the casing, clamping mechanism is used for clamping measurement utensil, detection mechanism connects in the casing, detection mechanism's both ends correspondence is connected in the both ends that clamping was constructed, detection mechanism, clamping mechanism and measurement utensil form a confined circulation channel, slewing mechanism connects in clamping mechanism and is used for driving clamping mechanism and rotate. Set up rotating device through the one end at clamping machine structure for when testing the measurement accuracy of measurement utensil, can measure the durability of measurement utensil, can detect the design defect of product in advance, risks such as guarantee, loss compensation that can effectual reduction leads to because of the design defect have all important meanings to effective control and discover product quality defect early.

Description

Measuring instrument testing device

Technical Field

The utility model relates to a counter test technical field, in particular to measurement utensil testing arrangement.

Background

Measurement detection (measurement detection) is a process of obtaining a certain result by performing a series of repeated tests on corresponding parameters of a measurement object, and before a meter is put into use, whether the measurement of the meter is accurate or not is generally required to be tested, and a conventional test bench for measuring the meter is generally large in size. The traditional meter testing device can only test the metering accuracy of a single type of meter, each meter is required to correspond to one testing device, different meters such as a nit meter, a Gilberg meter and a Token meter need different testing devices, the applicability is low, the occupied space of the testing device is large, the tooling cost of the testing device is high, the testing is inconvenient, and the working efficiency of workers is low. The conventional meter testing device can only test the metering accuracy and cannot test the durability, wherein the durability refers to the capability of ensuring the performance characteristics of a metering device in use, so that the risks of warranty repair, loss compensation and the like caused by design defects cannot be reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a measurement utensil testing arrangement in order to overcome the defect that the measurement among the prior art detects the test that can not carry out the durability.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the utility model provides a measuring instrument testing arrangement, its characterized in that, it includes casing, clamping machine structure, detection mechanism and slewing mechanism, the casing has the holding chamber, clamping machine structure detection mechanism with slewing mechanism all set up in the holding intracavity, clamping machine structure with the casing is connected, clamping machine constructs and is used for the clamping measuring instrument, detection mechanism connect in the casing, detection mechanism's both ends correspond connect in the both ends of clamping machine structure, detection mechanism clamping machine constructs with the measuring instrument forms a confined circulation channel, slewing mechanism connect in clamping machine constructs and is used for the drive clamping machine constructs the rotation.

In this scheme, adopt above-mentioned structural style, detection mechanism, clamping machine construct and measurement utensil formation circulation passageway for detect the circulation and the circulation of the oil body and measure in order to measure the measurement utensil, thereby set up rotating device and rotate in order to drive clamping machine structure and drive the measurement utensil and rotate in order to detect the durability of measurement utensil in the holding intracavity. This measuring instrument testing arrangement can detect measuring instrument's measurement accuracy and can detect measuring instrument's durability again to learn whether measuring instrument has the design defect, with the reliability that improves the product, reduce risks such as warranty, loss compensation that lead to because of the design defect.

Preferably, the clamping mechanism comprises a first chuck, a second chuck, a first rotating shaft and a second rotating shaft, the first rotating shaft is fixed to the first chuck, a plurality of clamping jaws are arranged on the first chuck, the first rotating shaft is rotatably connected to the shell, a first through hole is formed in the first rotating shaft in the axial direction of the first rotating shaft, the first through hole is used for communicating with the metering device, the second rotating shaft is fixed to the second chuck, a plurality of clamping jaws are arranged on the second chuck, the second rotating shaft penetrates through the rotating mechanism and is rotatably connected with the shell, and the clamping jaws on the first chuck and the clamping jaws on the second chuck are oppositely arranged and used for clamping two ends of the metering device.

In this scheme, adopt above-mentioned structural style, first pivot and first chuck are fixed, and second pivot and second chuck are fixed, all set up the jack catch on first chuck and the second chuck and be used for the clamping measurement utensil, when detecting measurement utensil like this, measurement utensil can rotate along with the rotation of first pivot and second pivot to detect measurement utensil's durability. A first through hole is formed in the axial direction of the first rotating shaft and used for being communicated with a metering device and forming a circulating channel with the detection system.

Preferably, the rotating mechanism includes a pushing member and a rotating member, the rotating member is connected to the second rotating shaft, and the pushing member is connected to the housing and reciprocates in a direction away from or close to the rotating member to push the rotating member to rotate.

Preferably, a plurality of right-angle notches are uniformly formed in the circumference of the rotating member, when the pushing member moves in a direction close to the rotating member and abuts against the right-angle notches, the pushing member applies a pushing force to the rotating member, so that the rotating member rotates in the direction of the pushing force, and the pushing member moves in a direction away from the pushing member and is separated from the right-angle notches, so that the pushing member gives way to the rotation of the rotating member.

In this scheme, the impeller is along keeping away from or being close to the direction of rotating the piece and being reciprocating motion to the rotation is rotated in the promotion, because rotate the piece and be connected with the second pivot, the second pivot rotates along with the rotation of rotating the piece, thereby makes the measurement utensil can overturn when detecting, just so can rotate the test to the durability of measurement utensil, adopts this kind of setting, and the motion process of measurement utensil is slow, the control of being convenient for. The circumference of the rotating part is uniformly provided with right-angle notches, so that the pushing part is convenient to improve the uniformity and the stability of the rotating part pushed by the pushing part.

Preferably, slewing mechanism still includes stop gear, stop gear has link and spacing end, the link connect in on the casing, spacing end includes electro-magnet and magnetic part, the electro-magnet connect in the bottom of link, the one end of magnetic part articulate in the link, the other end of magnetic part extend to the below of electro-magnet and can support by lean on in the right angle breach in order to restrict rotate the piece rotates, the magnetic part can be along keeping away from or being close to the direction removal of electro-magnet is so that the magnetic part is to rotate piece locking or unblock.

In this scheme, set up stop gear on slewing mechanism, stop gear can carry out the locking to slewing mechanism when needs stall, need not wait for, saves time, can prevent moreover that operating personnel from rotating in-process maloperation and meeting accident. Adopt electro-magnet and magnetic part, this kind of setting structure is simple, through power control magnetic part to the locking and the unblock of rotating the piece, easy operation.

Preferably, an elastic element is further disposed on the magnetic member, one end of the elastic element is connected to the connecting end, the other end of the elastic element is connected to the magnetic member, and the elastic element provides a restoring force for locking the rotating member by the magnetic member.

In this scheme, set up elastic element on the magnetism spare, be favorable to improving the reliability of magnetism spare locking.

Preferably, the detection mechanism includes a detection system, a circulation system and a sealing guide sleeve, the detection system and the circulation system are both fixed on the housing, the detection system is communicated with the circulation system through a communication pipe, the detection system is communicated with the first rotating shaft through a guide member, the guide member is rotatably connected with the first rotating shaft, the circulation system is communicated with the second rotating shaft through the sealing guide sleeve, the sealing guide sleeve is rotatably connected with the second rotating shaft in a sealing manner, and the circulation system, the detection system, the guide member, the metering device and the sealing guide sleeve form a closed circulation channel.

In the scheme, the flow guide piece is in rotary connection with the first rotating shaft, the sealing guide sleeve is in sealing rotary connection with the second rotating shaft, and the measuring instrument can rotate to detect the durability of the measuring instrument while the measuring instrument is detected by adopting the structural mode.

Preferably, the detection system comprises a detection cabin body and a pump body, the flow guide piece comprises a sleeve and a first conduit, the first conduit is arranged in the sleeve in a penetrating manner, one end of the sleeve is connected with the detection cabin body, the sleeve passes through the first through hole and is rotatably connected with the first rotating shaft, and one end of the first conduit, which is far away from the detection cabin body, is used for being communicated with the inlet end of the metering device.

Preferably, the circulating system comprises a circulating bin body and a pump body, a second guide pipe is arranged at one end of the circulating bin body, one end of the second guide pipe, which is far away from the circulating bin body, is connected with the sealing guide sleeve, and an electromagnetic valve is arranged on the second guide pipe and used for controlling the communication or the closing between the sealing guide sleeve and the circulating bin body.

In this scheme, the pump body is arranged in the detection system and the circulating system, so that the detection of the delivery of the oil bodies is facilitated. First pipe is worn to locate in the sleeve pipe, and the sleeve pipe passes first through-hole and rotates with first pivot and be connected, adopts this kind of structural style, and firstly the sleeve pipe plays the guard action to first pipe, secondly is convenient for realize detecting in oil physical stamina flows into the measurement utensil from detecting system, in the rotation of measurement utensil in the testing process moreover. The electromagnetic valve arranged on the second conduit is beneficial to automatically controlling the communication or the closing between the sealing guide sleeve and the circulating bin body.

Preferably, an inner tube is arranged in the sealing guide sleeve, a plurality of second through holes are formed in the inner tube, the inner tube is fixed with the second rotating shaft in a sealing mode, a first cavity is formed between the inner tube and the second rotating shaft, a second cavity is formed between the inner tube and the sealing guide sleeve, the outlet end of the metering device extends into the second cavity and is communicated with the first cavity, and the second through holes are used for communicating the first cavity with the second cavity.

In this scheme, adopt above-mentioned structural style to realize detecting that the oil body gets into first cavity from the exit end of measurement utensil, then in second cavity is arrived in the second through-hole, at last flows into the circulation storehouse body through the second pipe.

Preferably, the measuring instrument testing device further comprises an adjusting mechanism, one end of the adjusting mechanism is connected with the shell, and the other end of the adjusting mechanism is connected with the clamping mechanism and used for driving the clamping mechanism to move along the length direction of the clamping mechanism.

In this scheme, set up adjustment mechanism in order to adjust the length of clamping mechanism to realize that measurement utensil testing arrangement can be applicable to the measurement utensil of different models.

Preferably, the adjusting mechanism includes a fixed plate, a slider and a plurality of hydraulic rods, two sides of the fixed plate are respectively connected to the hydraulic rods and the clamping mechanism, a lower end of the fixed plate is connected to the slider, the slider is slidably disposed in a chute on the housing, one end of the hydraulic rod away from the fixed plate is connected to the housing, and the hydraulic rod can drive the fixed plate to move in a direction close to or away from the clamping mechanism.

In this scheme, adopt hydraulic transmission to have light in weight, small, the motion inertia is little, reaction rate advantage such as fast, realize the function of adjusting the distance at clamping mechanism both ends very easily.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: the utility model discloses a measurement utensil testing arrangement sets up rotating device through the one end at clamping mechanism for when testing the measurement accuracy of measurement utensil, can measure the durability of measurement utensil, can detect the design defect of product in advance, risks such as warranty, loss compensation that can effectual reduction lead to because of the design defect, no matter be in the early stage of product development or the volume production stage, all have the significance to effective control and discover product quality defect early.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a measuring device testing apparatus according to a preferred embodiment of the present invention.

Fig. 2 is an external structural diagram of a measuring device testing apparatus according to a preferred embodiment of the present invention.

Fig. 3 is a schematic sectional view taken along line a-a of fig. 1.

Fig. 4 is a schematic structural view of a sealing guide sleeve in a meter testing device according to a preferred embodiment of the present invention.

Description of reference numerals:

housing 1

Chute 11

Front panel 12

Clamping machine constructs 2

First rotating shaft 21

First chuck 22

Jack catch 23

Second chuck 24

Second rotating shaft 25

Detection mechanism 3

Detection bin 31

Sleeve 32

First conduit 33

Communication pipe 34

Circulating bin body 35

Second conduit 36

Sealing guide sleeve 37

Inner tube 371

Second via 3711

First cavity 372

Second cavity 373

Rotating mechanism 4

Rotating member 41

Pusher 42

Right angle notch 43

Plate 44

Electromagnet 45

Magnetic member 46

Spacing pin 47

Elastic element 48

Adjusting mechanism 5

Hydraulic rod 51

Fixing plate 52

Slide block 53

Control panel 6

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-4, the utility model provides a measurement utensil testing arrangement, it includes casing 1, clamping machine constructs 2, detection mechanism 3 and slewing mechanism 4, casing 1 has the holding chamber, clamping machine constructs 2, detection mechanism 3 and slewing mechanism 4 all set up in the holding intracavity, clamping machine constructs 2 and is connected with casing 1, clamping machine constructs 2 and is used for the clamping measurement utensil, detection mechanism 3 connects in casing 1, the both ends correspondence of detection mechanism 3 connect in the both ends of clamping machine structure 2, detection mechanism 3, clamping machine constructs 2 and measures the utensil and forms a confined circulation channel, slewing mechanism 4 connects in clamping machine structure 2 and is used for driving clamping machine structure 2 to rotate.

Wherein, detection mechanism 3, clamping machine structure 2 and measurement utensil form circulation channel for detect the circulation and the circulation of the oil body and measure in order to measure the measurement utensil, thereby set up rotating device and rotate with drive clamping machine structure 2 in the holding intracavity and drive the measurement utensil and rotate and detect in order to detect the durability of measurement utensil. This measuring instrument testing arrangement can detect measuring instrument's measurement accuracy and can detect measuring instrument's durability again to learn whether measuring instrument has the design defect, with the reliability that improves the product, reduce risks such as warranty, loss compensation that lead to because of the design defect.

As can be understood by referring to fig. 1, the clamping mechanism 2 includes a first chuck 22, a second chuck 24, a first rotating shaft 21 and a second rotating shaft 25, the first rotating shaft 21 is fixed to the first chuck 22, a plurality of jaws 23 are disposed on the first chuck 22, the first rotating shaft 21 is rotatably connected to the housing 1, a first through hole is disposed in the first rotating shaft 21 along an axial direction of the first rotating shaft 21, the first through hole is used for communicating with a measuring instrument, the second rotating shaft 25 is fixed to the second chuck 24, a plurality of jaws 23 are disposed on the second chuck 24, the second rotating shaft 25 penetrates through the rotating mechanism 4 to be rotatably connected to the housing 1, and the jaws 23 on the first chuck 22 and the jaws 23 on the second chuck 24 are disposed opposite to each other and are used for clamping two ends of the measuring instrument.

The first rotating shaft 21 and the first chuck 22 are fixed, the second rotating shaft 25 and the second chuck 24 are fixed, and the jaws 23 are arranged on the first chuck 22 and the second chuck 24 and used for clamping a measuring instrument, so that when the measuring instrument is detected, the measuring instrument can rotate along with the rotation of the first rotating shaft 21 and the second rotating shaft 25, and the durability of the measuring instrument is detected. A first through hole is provided in the axial direction of the first rotary shaft 21 for communicating with the measuring instrument and forming a circulation passage with the detection system.

As will be understood by referring to fig. 1 and 4, the detection mechanism 3 includes a detection system, a circulation system and a sealing guide sleeve 37, the detection system and the circulation system are both fixed on the housing 1, the detection system and the circulation system are communicated with each other through a communication pipe 34, the detection system is communicated with the first rotating shaft 21 through a guide member, the guide member is rotatably connected with the first rotating shaft 21, the circulation system is communicated with the second rotating shaft 25 through the sealing guide sleeve 37, the sealing guide sleeve 37 is rotatably connected with the second rotating shaft 25 in a sealing manner, and the circulation system, the detection system, the guide member, the metering device and the sealing guide sleeve 37 form a closed circulation channel. The flow guide piece is rotatably connected with the first rotating shaft 21, the sealing guide sleeve 37 is rotatably connected with the second rotating shaft 25 in a sealing mode, and the measuring instrument can rotate to detect the durability of the measuring instrument while the measuring instrument is detected.

As will be understood by continuing to refer to fig. 1 and 4, the detecting system includes a detecting bin 31 and a pump body, the flow guide member includes a sleeve 32 and a first conduit 33, the first conduit 33 is inserted into the sleeve 32, one end of the sleeve 32 is connected with the detecting bin 31, the sleeve 32 passes through the first through hole and is rotatably connected with the first rotating shaft 21, and one end of the first conduit 33, which is away from the detecting bin 31, is used for communicating with the inlet end of the measuring instrument. The circulating system comprises a circulating bin body 35 and a pump body, a second conduit 36 is arranged at one end of the circulating bin body 35, one end, away from the circulating bin body 35, of the second conduit 36 is connected with a sealing guide sleeve 37, and an electromagnetic valve is arranged on the second conduit 36 and used for controlling the communication or the closing between the sealing guide sleeve 37 and the circulating bin body 35.

The pump body is arranged in the detection system and the circulating system, so that the detection of the delivery of the oil body is facilitated. First pipe is worn to locate in the sleeve pipe 32, and sleeve pipe 32 passes first through-hole and rotates with first pivot 21 and be connected, adopts this kind of structural style, and firstly sleeve pipe 32 plays the guard action to first pipe 33, secondly is convenient for realize that it can flow into in the measurement utensil from detecting system to detect oil, moreover in the rotation of measurement utensil in the testing process. The electromagnetic valve arranged on the second conduit 36 is beneficial to automatically controlling the communication or the closing between the sealing guide sleeve 37 and the circulating bin body 35.

With continued reference to fig. 1 and 4, an inner tube 371 is disposed in the sealing guide sleeve 37, a plurality of second through holes 3711 are disposed on the inner tube 371, the inner tube 371 is fixed to the second rotating shaft 25 in a sealing manner, a first cavity 372 is disposed between the inner tube 371 and the second rotating shaft 25, a second cavity 373 is disposed between the inner tube 371 and the sealing guide sleeve 37, an outlet end of the measuring instrument extends into the second cavity 373 and is communicated with the first cavity 372, and the second through holes 3711 are used for communicating the first cavity 372 with the second cavity 373. So as to detect the oil body entering the first cavity 372 from the outlet end of the metering device, then passing through the second through hole 3711 to the second cavity 373, and finally flowing into the circulating cartridge body 35 through the second conduit 36.

As shown in fig. 1 and 4, in this embodiment, the detecting bin 31 and the circulating bin 35 are both fixed on the casing 1 and are communicated through a communication pipe 34, the first conduit 33 passes through one end of the sleeve 32 to be connected with the pump body in the detecting bin 31, and one end of the sleeve is connected with the inlet end of the measuring instrument, the sleeve 32 is L-shaped, one end of the sleeve 32 connected with the first rotating shaft 21 is connected with a bearing, the outer ring of the bearing is connected with the first through hole on the first rotating shaft 21, and the first rotating shaft 21 can rotate relative to the sleeve 32. The communicating pipe 34 is connected with the pump body in the circulating bin body 35, one end of the second conduit pipe 36 is connected with the circulating bin body 35, and the other end is connected with the sealing guide sleeve 37. The sealing guide sleeve 37 is provided with a sealing bearing, the inner ring of the sealing bearing is connected with the inner tube 371, the outlet end of the measuring instrument penetrates through the inner hole on the chuck and extends into a second cavity 373 formed by the inner tube 371 and the sealing guide sleeve 37, the outlet end of the measuring instrument is relatively fixed with the inner tube 371, the detection oil body in the measuring instrument flows into the first cavity 372 from the measuring instrument and flows into the second cavity 373 through the second through hole 3711, and finally flows into the circulating bin body 35 through the second conduit 36. Namely, the circulating bin body 35, the communicating pipe 34, the detecting bin body 31, the first conduit 33, the measuring instrument, the sealing guide sleeve 37 and the second conduit 36 are sequentially connected to form a closed circulating channel for detecting the circulation and circulation of the oil body.

As will be understood with reference to fig. 1 and 3, the rotating mechanism 4 includes a pushing member 42 and a rotating member 41, the rotating member 41 is connected to the second rotating shaft 25, and the pushing member 42 is connected to the housing 1 and reciprocates in a direction away from or toward the rotating member 41 to push the rotating member 41 to rotate. The circumference of the rotating part 41 is uniformly provided with a plurality of right-angle notches 43, when the pushing part 42 moves along the direction close to the rotating part 41 and abuts against the right-angle notches 43, the pushing part 42 applies a thrust to the rotating part 41, so that the rotating part 41 rotates along the direction of the thrust, and the pushing part 42 moves along the direction far away from the pushing part and is separated from the right-angle notches 43, so that the pushing part gives way to the rotation of the rotating part 41.

As will be understood by continuing to refer to fig. 1 and 3, the pushing member 42 reciprocates in a direction away from or close to the rotating member 41 to push the rotating member 41 to rotate, and since the rotating member 41 is connected to the second rotating shaft 25, the second rotating shaft 25 rotates along with the rotation of the rotating member 41, so that the measuring instrument can be turned over while being detected, and thus the durability of the measuring instrument can be tested by rotation. The right-angle notches 43 are uniformly arranged on the circumference of the rotating part 41, so that the pushing part 42 can push the rotating part 41 to rotate uniformly and stably.

As shown in fig. 3, the rotating mechanism 4 further includes a limiting mechanism, the limiting mechanism has a connecting end and a limiting end, the connecting end is connected to the housing 1, the limiting end includes an electromagnet 45 and a magnetic member 46, the electromagnet 45 is connected to the bottom of the connecting end, one end of the magnetic member 46 is hinged to the connecting end, the other end of the magnetic member 46 extends to the lower side of the electromagnet 45 and can be abutted to the right-angle notch 43 to limit the rotation of the rotating member 41, and the magnetic member 46 can move in the direction away from or close to the electromagnet 45 to lock or unlock the rotating member 41 by the magnetic member 46. The magnetic member 46 is further provided with an elastic element 48, one end of the elastic element 48 is connected with the connecting end, the other end of the elastic element 48 is connected with the magnetic member 46, and the elastic element 48 provides restoring force for the magnetic member 46 to lock the rotating member 41.

Set up stop gear on slewing mechanism 4, stop gear can carry out the locking to slewing mechanism 4 when needs stall, need not wait for, saves time, can prevent moreover that operating personnel from rotating in-process maloperation and meeting accident. The electromagnet 45 and the magnetic part 46 are adopted, the arrangement structure is simple, the magnetic part 46 is controlled to lock and unlock the rotating part 41 through a power supply, and the operation is simple. The elastic element 48 is provided on the magnetic member 46, which is advantageous for improving the reliability of locking the magnetic member 46.

As shown in fig. 1 and fig. 3, in this embodiment, one end of the second rotating shaft 25 is rotatably connected to the housing 1 through a bearing, the rotating member 41 in the rotating mechanism 4 passes through the second rotating shaft 25 and is fixed to the second rotating shaft 25, the other end of the second rotating shaft 25 is fixed to the second chuck 24, a plurality of right-angle notches 43 are uniformly formed in the circumference of the rotating member 41, the pushing member 42 is an electric telescopic rod, and the electric telescopic rod can perform back and forth telescopic motion in the axial direction thereof to push the rotating member 41 to rotate. This realizes that the gauge on the chuck 2 can rotate with the rotation of the second rotating shaft 25 by the rotation of the rotating member 41, thereby detecting the durability of the gauge. One side of a flat plate 44 is fixed on the shell 1, an electromagnet 45 is connected on the lower end face of the flat plate 44, one end of a magnetic element 46 is hinged with the flat plate 44, the other end of the magnetic element 46 extends below the electromagnet 45, one end, close to the electromagnet 45, of the magnetic element 46 is connected with a limiting pin 47, the limiting pin 47 can abut against the inside of the right-angle notch 43 to limit the rotation of the rotating element 41, and a spring is connected between the magnetic element 46 and the flat plate 44.

As shown in fig. 1, the measuring instrument testing device further includes an adjusting mechanism 5, one end of the adjusting mechanism 5 is connected with the housing 1, and the other end of the adjusting mechanism 5 is connected with the clamping mechanism 2 and is used for driving the clamping mechanism 2 to move along the length direction of the clamping mechanism 2. Wherein, set up adjustment mechanism 5 in order to adjust the length of clamping machine structure 2 to realize that measuring device testing arrangement can be applicable to the measuring device of different models.

As will be understood by referring to fig. 1, the adjusting mechanism 5 includes a fixed plate 52, a slider 53 and a plurality of hydraulic rods 51, two sides of the fixed plate 52 are respectively connected to the hydraulic rods 51 and the clamping mechanism 2, a lower end of the fixed plate 52 is connected to the slider 53, the slider 53 is slidably disposed in the sliding slot 11 on the housing 1, one end of the hydraulic rod 51 away from the fixed plate 52 is connected to the housing, and the hydraulic rod 51 can drive the fixed plate 52 to move in a direction close to or away from the clamping mechanism 2. The hydraulic transmission has the advantages of light weight, small volume, small motion inertia, high reaction speed and the like, and the function of adjusting the distance between the two ends of the clamping mechanism 2 is easily realized.

As will be understood with reference to fig. 1 to 4, the operation principle of the measuring instrument testing device in the present embodiment is as follows: the housing is further provided with a front panel 12 for protecting the inside of the measuring instrument testing device, and the front panel 12 is provided with a control panel 6 for controlling the detection operation of the measuring instrument testing device. The position of the fixing plate 52 is roughly adjusted through the hydraulic rod 51 according to the length of the measuring instrument to be detected, then the outlet end of the measuring instrument to be detected extends into the sealing guide sleeve 37, the first guide pipe 33 is inserted into the inlet end of the measuring instrument through adjusting the adjusting mechanism 5, the measuring instrument is fixed with the first chuck 22 and the second chuck 24 through the claws 23, and at the moment, a closed circulating channel is formed among the circulating bin body 35, the detecting bin body 31, the measuring instrument and the sealing guide sleeve 37. Then, the detection system is started, the detection oil body in the detection bin body 31 is conveyed into the first guide pipe 33 through the pump body and flows into the metering device through the first guide pipe 33 to detect the metering device, the rotating mechanism 4 is started, the electromagnet 45 is electrified, the magnetic part 46 moves upwards under the electromagnetic action of the electromagnet 45 and is adsorbed by the electromagnet 45, the limiting pin 47 is separated from the right-angle notch 43, and the rotating part 41 is unlocked. Under the reciprocating telescopic motion of the electric telescopic rod, the electric telescopic rod pushes the rotating piece 41 to rotate. The measuring instrument is rotated in accordance with the rotation of the second rotating shaft 25 while the rotating member 41 is rotated. When the primary detection of the metering appliance is finished, the electromagnetic valve on the second conduit 36 is opened, the sealing guide sleeve 37 is communicated with the circulating bin body 35, the detection oil body flows into the first cavity from the metering appliance, then flows into the second cavity through the second through hole 3711, finally enters the circulating bin body 35 through the second conduit 36, and the circulating bin body 35 sends the detection oil body into the detecting bin body 31 again through the communicating pipe 34, so that the next detection can be carried out, and the circulating detection work can be carried out. After the detection is finished, the power supply is turned off, the magnetic pole direction of the electromagnet 45 is changed, the magnetic part 46 is separated from the electromagnet 45 under the gravity and the restoring force of the elastic element 48, the limiting pin 47 is abutted against the right-angle notch 43 again, the rotating mechanism 4 stops rotating, and then the metering device is taken down from the clamping mechanism 2.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides a measuring instrument testing arrangement, its characterized in that, it includes casing, clamping machine structure, detection mechanism and slewing mechanism, the casing has the holding chamber, clamping machine structure detection mechanism with slewing mechanism all set up in the holding intracavity, clamping machine structure with the casing is connected, clamping machine constructs and is used for the clamping measuring instrument, detection mechanism connect in the casing, detection mechanism's both ends correspond connect in the both ends of clamping machine structure, detection mechanism clamping machine constructs with the measuring instrument forms a confined circulation channel, slewing mechanism connect in clamping machine constructs and is used for the drive clamping machine constructs the rotation.

2. The measuring instrument testing device as claimed in claim 1, wherein the clamping mechanism comprises a first chuck, a second chuck, a first rotating shaft and a second rotating shaft, the first rotating shaft is fixed to the first chuck, a plurality of clamping jaws are arranged on the first chuck, the first rotating shaft is rotatably connected to the housing, a first through hole is arranged on the first rotating shaft in the axial direction of the first rotating shaft, the first through hole is used for communicating with the measuring instrument, the second rotating shaft is fixed to the second chuck, a plurality of clamping jaws are arranged on the second chuck, the second rotating shaft penetrates through the rotating mechanism and is rotatably connected with the housing, and the clamping jaws on the first chuck and the clamping jaws on the second chuck are oppositely arranged and used for clamping two ends of the measuring instrument.

3. The measuring instrument testing device of claim 2, wherein the rotation mechanism includes a pushing member and a rotation member, the rotation member being connected to the second rotation shaft, the pushing member being connected to the housing and reciprocating in a direction away from or toward the rotation member to push the rotation member to rotate.

4. The measuring instrument testing device of claim 3, wherein the rotating member has a plurality of right-angled notches uniformly formed on a circumference thereof, and when the pushing member moves in a direction close to the rotating member and abuts against the right-angled notches, the pushing member applies a pushing force to the rotating member so that the rotating member rotates in the direction of the pushing force, and the pushing member moves in a direction away from the pushing member and disengages from the right-angled notches so that the pushing member yields the rotation of the rotating member.

5. The measuring instrument testing device of claim 4, wherein the rotating mechanism further comprises a limiting mechanism, the limiting mechanism has a connecting end and a limiting end, the connecting end is connected to the housing, the limiting end comprises an electromagnet and a magnetic member, the electromagnet is connected to the bottom of the connecting end, one end of the magnetic member is hinged to the connecting end, the other end of the magnetic member extends to the lower side of the electromagnet and can abut against the inside of the right-angle notch to limit the rotation of the rotating member, and the magnetic member can move in a direction away from or close to the electromagnet to enable the magnetic member to lock or unlock the rotating member.

6. The measuring instrument testing device of claim 5, wherein an elastic element is further disposed on the magnetic member, one end of the elastic element is connected to the connecting end, and the other end of the elastic element is connected to the magnetic member, and the elastic element provides a restoring force for locking the rotating member by the magnetic member.

7. The measuring instrument testing device according to claim 2, wherein the detection mechanism comprises a detection system, a circulation system and a sealing guide sleeve, the detection system and the circulation system are both fixed on the housing, the detection system is communicated with the circulation system through a communication pipe, the detection system is communicated with the first rotating shaft through a guide member, the guide member is rotatably connected with the first rotating shaft, the circulation system is communicated with the second rotating shaft through the sealing guide sleeve, the sealing guide sleeve is rotatably connected with the second rotating shaft, and the circulation system, the detection system, the guide member, the measuring instrument and the sealing guide sleeve form a closed circulation channel.

8. The measuring instrument testing device of claim 7, wherein the detecting system comprises a detecting cartridge and a pump body, the flow guide member comprises a sleeve and a first conduit, the first conduit is disposed in the sleeve, one end of the sleeve is connected to the detecting cartridge, the sleeve passes through the first through hole and is rotatably connected to the first rotating shaft, and one end of the first conduit, which is away from the detecting cartridge, is used for communicating with the inlet end of the measuring instrument.

9. The measuring instrument testing device of claim 7, wherein the circulating system comprises a circulating bin body and a pump body, a second conduit is arranged at one end of the circulating bin body, one end of the second conduit, which is far away from the circulating bin body, is connected with the sealing guide sleeve, and an electromagnetic valve is arranged on the second conduit and is used for controlling the connection or the disconnection between the sealing guide sleeve and the circulating bin body.

10. The measuring instrument testing device of claim 9, wherein an inner tube is disposed in the sealing guide sleeve, a plurality of second through holes are disposed on the inner tube, the inner tube is fixed to the second rotating shaft in a sealing manner, a first cavity is disposed between the inner tube and the second rotating shaft, a second cavity is disposed between the inner tube and the sealing guide sleeve, an outlet end of the measuring instrument extends into the second cavity and is communicated with the first cavity, and the second through holes are used for communicating the first cavity with the second cavity.

11. The measuring instrument testing device according to any one of claims 1 to 10, further comprising an adjusting mechanism, one end of the adjusting mechanism being connected to the housing, and the other end of the adjusting mechanism being connected to the chuck and configured to drive the chuck to move along the length of the chuck.

12. The measuring instrument testing device of claim 11, wherein the adjusting mechanism comprises a fixing plate, a slider and a plurality of hydraulic rods, two sides of the fixing plate are respectively connected with the hydraulic rods and the clamping mechanism, a lower end of the fixing plate is connected with the slider, the slider is slidably disposed in a sliding slot on the housing, one end of the hydraulic rod, which is far away from the fixing plate, is connected to the housing, and the hydraulic rods can drive the fixing plate to move in a direction close to or far away from the clamping mechanism.