An electromagnetic valve airtightness testing device

Abstract

The present invention relates to the technical field of airtightness detection of solenoid valves, and particularly relates to an airtightness testing device for solenoid valves, which includes a bottom plate. A conveyor belt is arranged on the bottom plate. A side plate is fixedly installed on the side of the bottom plate. A control plate is slidably installed on the side plate. The control plate is drivingly connected to the conveyor belt. A clamping mechanism is arranged at the bottom of the control plate. An air guiding mechanism is arranged on the control plate. The air guiding mechanism is connected to the clamping mechanism. The beneficial effect of the present invention is that by drivingly connecting the control plate to the conveyor belt, the control plate can drive the conveyor belt to rotate when sliding, so that the next solenoid valve to be detected moves to the lower part of the clamping mechanism, preparing for the next detection. This setting enables the device to continuously detect solenoid valves, improving the working efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valve airtightness detection, and particularly to a solenoid valve airtightness testing device. Background Art

[0002] A solenoid valve is a basic automation component used to control fluids in hydraulic and pneumatic control systems and is widely used in various precision instruments. When the solenoid valve works, it controls the movement of the valve core to open and close the solenoid valve, thereby realizing the inflow and outflow of fluids. Among them, the airtightness of the solenoid valve is an important factor affecting the performance of the instrument. The existing method for detecting the airtightness of a solenoid valve is to fix the valve body of the solenoid valve on the valve block with screws for airtightness detection. Each time, only one solenoid valve can be detected, and the detection efficiency is low, which cannot meet the detection requirements of a large number of solenoid valves. At the same time, during the disassembly and assembly process, the valve body is extremely easy to be damaged, increasing the unqualified rate of the solenoid valve and further increasing the cost.

[0003] Chinese patent document CN 212409981 U discloses a solenoid valve airtightness detection device, including a bearing part, a limiting part, and a fixture. The bearing part includes a bearing member, on which positioning grooves are provided. On the bottom wall of each positioning groove, a first hole and a second hole are provided. The first hole communicates with the air inlet channel on the bearing member, and the second hole communicates with the exhaust interface on the bearing member. The advantage of this application is that the valve body to be detected is inserted into each positioning groove. The positioning groove has a first hole and a second hole, which has a positioning effect and can realize the precise positioning of the valve body. Multiple positioning grooves can realize the simultaneous detection of multiple solenoid valve bodies, saving time and effort, improving work efficiency, and also meeting the airtightness detection requirements of a large number of solenoid valve bodies. At the same time, the fixture is used to press the limiting part on the bearing member to realize the pressing of the valve body to be detected. It can be determined whether the valve body is airtight by observing whether there are bubbles in the outlet pipe. The operation is simple, and there is no need to disassemble the valve body, which maximally protects the valve body.

[0004] Although the above-mentioned disclosed device can detect multiple solenoid valves simultaneously, before detection, the solenoid valves need to be installed. After a batch of solenoid valves are detected, the detected solenoid valves need to be removed, and then the solenoid valves to be detected need to be installed for the next detection. The solenoid valves cannot be continuously detected, and the work efficiency is still low.

[0005] Therefore, a solenoid valve airtightness testing device is needed to solve the above problems. Summary of the Invention

[0006] In order to solve the above problems, that is, to solve the problem that the existing solenoid valve detection device cannot continuously detect solenoid valves, the present invention provides a solenoid valve airtightness testing device.

[0007] An electromagnetic valve airtightness testing device, comprising a bottom plate, on which a conveyor belt is arranged. A side plate is fixedly installed on the side of the bottom plate, and a control plate is slidably installed on the side plate. The control plate is drivingly connected to the conveyor belt. A clamping mechanism is arranged at the bottom of the control plate, and a gas guiding mechanism is arranged on the control plate. The gas guiding mechanism is connected to the clamping mechanism; by drivingly connecting the control plate to the conveyor belt, the control plate can drive the conveyor belt to rotate when sliding, so that the next electromagnetic valve to be detected moves to the lower part of the clamping mechanism, preparing for the next detection. This setting enables the device to continuously detect electromagnetic valves and improves the working efficiency of the device.

[0008] Preferably, supports are fixedly installed at the middle positions near both ends of the upper surface of the bottom plate. An installation hole is penetrated through the position near the top of the support. An outer sleeve is rotatably installed in the installation hole. A limit ring is coaxially fixedly installed on the outer surface of the outer sleeve. A limit groove is coaxially opened outside the installation hole. The limit ring rotates in the limit groove. An inner sliding rod is slidably installed inside the outer sleeve. One end of the inner sliding rod extends out of the outer sleeve. Inner concave wheels are coaxially fixedly installed at the outer ends of the outer sleeve and the inner sliding rod. The two inner concave wheels on the two outer sleeves and the two inner concave wheels on the two inner sliding rods are all drivingly connected through the conveyor belt. Shelving grooves are symmetrically opened on the outer sides of the two conveyor belts; by symmetrically opening shelving grooves on the two conveyor belts, the stability of the electromagnetic valves located on the conveyor belt can be ensured. By setting the slidable inner sliding rod, the distance between the two conveyor belts can be adjusted, so that the device can stably convey electromagnetic valves of different lengths.

[0009] Preferably, two first helical grooves are coaxially formed on the inner surface of the outer sleeve. The two first helical grooves are symmetrical, and the inclined surfaces of the two first helical grooves are opposite. A first inner sliding hole is coaxially formed inside the inner sliding rod. A pull rod is slidably installed inside the first inner sliding hole through a second spring. The outer end of the pull rod extends outside the inner sliding rod. Through holes are symmetrically formed through two opposite sides corresponding to the first inner sliding hole. A first helical block is slidably installed inside the through hole. The inclined surfaces of the two first helical blocks are opposite. A limiting sliding groove is formed on the side of the through hole. A limiting sliding block is fixedly installed at a position close to the middle on the side of the first helical block. The limiting sliding block slides inside the limiting sliding groove. A first spring is arranged between the limiting sliding block and one end of the limiting sliding groove close to the outer sleeve. The ends of the pull rod and the first helical block located inside the first inner sliding hole are both arc-shaped. When the first helical block abuts against the pull rod, the first helical block abuts against the first helical groove. When the first helical block does not abut against the pull rod, the first helical block disengages from the first helical groove. By providing two first helical grooves with opposite helical surfaces and a first helical block that can be driven by the pull rod, when it is necessary to slide the inner sliding rod, the pull rod can be pulled to disengage the first helical block from the first helical groove. When it is necessary to lock the inner sliding rod and the outer sleeve, the pull rod is released to push the first helical block so that the first helical block abuts against the first helical groove, which is convenient for operation. In addition, the first helical block being stuck in the first helical groove can also prevent the inner sliding rod from rotating relative to the outer sleeve, so that the outer sleeve can drive the inner sliding rod to rotate when the outer sleeve rotates.

[0010] Preferably, side plates are symmetrically and fixedly installed on both sides of the bottom plate near the discharge end. A sliding frame is sleeved on the side plate. Two ends of the control plate are respectively fixedly connected to the two sliding frames. A top plate is fixedly installed at the top of the side plate. An electric telescopic rod is fixedly installed at the middle position of the upper surface of the top plate. The bottom end of the electric telescopic rod penetrates through the top plate and is fixedly connected to the upper surface of the control plate. The electric telescopic rod can drive the control plate to slide up and down, and the two sliding frames can ensure the stability of the control plate.

[0011] Preferably, an extension shaft is coaxially and fixedly installed on the outside of one of the inner concave wheels. A transmission cavity is formed inside one of the side plates. A support shaft is rotatably installed at the top of the transmission cavity. The outer end of the extension shaft extends into the transmission cavity and is in transmission connection with the support shaft through a transmission belt. A second helical groove is formed on the outer surface of the transmission belt. When the transmission belt is driven, the inner concave wheel is driven to rotate through the extension shaft, so as to drive the conveyor belt to drive the solenoid valve to rotate.

[0012] Preferably, an extension chute is formed in the inner side of one of the side plates. The side of the extension chute communicates with the transmission cavity. An extension block is fixedly installed inside one of the sliding frames. The extension block slides in the extension chute. A second inner sliding hole is formed in the side of the extension block close to the transmission cavity. A second helical tooth block matching the second helical tooth groove is slidably installed in the second inner sliding hole through a third spring. When the extension block slides upward, the second helical tooth block abuts against the second helical tooth groove, thereby driving the transmission belt to rotate. When the extension block slides downward, the second helical tooth block is pushed in and retracted into the second inner sliding hole.

[0013] Preferably, the clamping mechanism includes an inner sliding cavity formed in the control board. The bottom of the inner sliding cavity communicates with the outside through two symmetric through sliding holes. Inner sliding plates are slidably installed at both ends of the inner sliding cavity through fourth springs. When the fourth springs are in a normal state, the through sliding holes are blocked by the inner sliding plates. When the two inner sliding plates abut against each other at the middle position of the inner sliding cavity, the through sliding holes are blocked by the inner sliding plates. A clamping plate is fixedly installed at the bottom of the inner sliding plate. The bottom end of the clamping plate passes through the through sliding hole and extends to the outside of the control board. A rubber pad is fixedly installed at the bottom end of the inner side of the clamping plate. When the fourth springs are in a normal state, the clamping plate is located at the outermost side in the through sliding hole. When an external force is applied to the outer end of the inner sliding plate, the inner sliding plate drives the clamping plate to slide inward to clamp both ends of the solenoid valve. The rubber pad can ensure the sealing performance of the clamping position and prevent gas leakage.

[0014] Preferably, the air guiding mechanism includes an intermediate pump and a side pump. The intermediate pump and the side pump are respectively fixedly installed at the middle position and the position close to the side on one side of the control board. The intermediate pump is communicated with the middle position of the inner sliding cavity, and the side pump is communicated with the end of the inner sliding cavity. An air inflation hole is formed inside the clamping plate. One end of the air inflation hole penetrates through the inner sliding plate and is communicated with the end of the inner sliding cavity, and the other end of the air inflation hole penetrates through the middle position of the rubber pad and is communicated with the outside. A first button is arranged on the upper surface of the control board, and a second button is arranged at the bottom end of the extension chute. The intermediate pump, the side pump and the electric telescopic rod are all connected to the first button and the second button through a controller; By setting two buttons, when the second button is pressed by the extension block, the intermediate pump pumps air outwards, so that the two clamping plates clamp the solenoid valve, and the side pump inflates the inner sliding cavity. The gas enters the solenoid valve through the air inflation hole. After the pressure in the solenoid valve reaches the working pressure during use, the side pump stops operating, and the electric telescopic rod drives the solenoid valve to rise. When the first button is pressed, the intermediate pump stops operating and makes the middle position of the inner sliding cavity communicate with the outside. At this time, if the solenoid valve leaks air, the inner sliding plate will slide outwards, loosen the solenoid valve, and make the solenoid valve fall off. If the solenoid valve has qualified airtightness and does not leak air, the inner sliding plate does not slide, and the clamping plate continues to clamp the solenoid valve. Then the telescopic end of the electric telescopic rod descends. This setting can automatically separate the leaking solenoid valve, reducing the workload in the later stage.

[0015] Preferably, a first sliding plate is fixedly installed on one side of the side plate close to the discharge end. An inclined first rubber plate is fixedly installed at the top end of the first sliding plate. When the control board slides to the topmost position, the first rubber plate is located below the rubber pad. Both ends of the first rubber plate are not fixedly connected to the side plate. A second sliding plate is also fixedly installed on one side of the side plate close to the discharge end. An inclined second rubber plate is fixedly installed at the top end of the second sliding plate. The second rubber plate is located directly below the first rubber plate, and both ends of the second rubber plate are not fixedly connected to the side plate; By making both ends of the two rubber plates not fixedly connected to the side plate, when the electric telescopic rod drives the solenoid valve to rise, the two rubber plates will be pushed and bent, so as not to affect the rise of the solenoid valve. When a leaking solenoid valve is detected, when it is at the top, the clamping plate is loosened, and the solenoid valve falls onto the first rubber plate and slides down from the first sliding plate, and the non-leaking solenoid valve falls onto the second rubber plate and falls down from the second sliding plate, automatically classifying the qualified and unqualified solenoid valves and improving work efficiency.

[0016] Preferably, air outlet holes are formed through the side of the sliding frame, and the air outlet holes communicate with the end of the inner sliding cavity. An indentation groove is formed on the inner side of the side plate, and the indentation groove is located between the first rubber plate and the second rubber plate. Under normal circumstances, the air outlet holes abut against the side plate, and the gas at the end of the inner sliding cavity cannot leak out. When the air outlet holes coincide with the indentation groove, the gas at the end of the inner sliding cavity leaks out, causing the inner sliding plate to slide outwards, and the clamping plate releases the airtight solenoid valve, causing it to fall onto the second rubber plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. By driving the connection between the control board and the conveyor belt, the control board can drive the conveyor belt to rotate when sliding, so that the next solenoid valve to be detected moves below the clamping mechanism, preparing for the next detection. This setting enables the device to continuously detect solenoid valves, improving the working efficiency of the device.

[0019] 2. By symmetrically arranging the shelving grooves on the two conveyor belts, the stability of the solenoid valves located on the conveyor belts can be ensured. By providing a slidable inner sliding rod, the distance between the two conveyor belts can be adjusted, enabling the device to stably convey solenoid valves of different lengths. By providing two first helical grooves with opposite helical surfaces and a first helical block driven by a pull rod, when it is necessary to slide the inner sliding rod, pull the pull rod to disengage the first helical block from the first helical groove. When it is necessary to lock the inner sliding rod with the outer sleeve, release the pull rod, and the pull rod will push the first helical block to make the first helical block abut against the first helical groove, which is convenient for operation.

[0020] 3. By providing two buttons, when the second button is pressed by the extension block, the intermediate pump pumps air outwards, causing the two clamping plates to clamp the solenoid valve. The side pump inflates the inner sliding cavity, and the gas enters the solenoid valve through the inflation hole. After the pressure in the solenoid valve reaches the working pressure during use, the side pump stops operating, and the electric telescopic rod drives the solenoid valve to rise. When the first button is pressed, the intermediate pump stops operating, and the middle position of the inner sliding cavity communicates with the outside. At this time, if the solenoid valve leaks, the inner sliding plate will slide outwards, releasing the solenoid valve and causing it to fall. If the solenoid valve has qualified sealing and does not leak, the inner sliding plate does not slide, and the clamping plate continues to clamp the solenoid valve. Then, the telescopic end of the electric telescopic rod descends. This setting can automatically separate the leaking solenoid valves, reducing the workload in the later stage.

[0021] 4. In the present invention, by not fixing the two ends of the two rubber plates to the side plates, when the electric telescopic rod drives the solenoid valve to rise, the two rubber plates will be pushed and bent, thus not affecting the rise of the solenoid valve. When a leaking solenoid valve is detected, the clamping plate is loosened at the top, and the solenoid valve falls onto the first rubber plate and slides off the first sliding plate. The non-leaking solenoid valve falls onto the second rubber plate and falls off the second sliding plate, automatically classifying the qualified and unqualified solenoid valves and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall structure of the present invention;

[0023] Figure 2 Schematic diagram of the conveyor belt structure of the present invention;

[0024] Figure 3 Schematic diagram of the concave wheel structure of the present invention;

[0025] Figure 4 Schematic diagram of the sectional view of the support of the present invention;

[0026] Figure 5 Schematic diagram of the sectional view of the outer sleeve and the inner sliding rod of the present invention;

[0027] Figure 6 Schematic diagram of the control board structure of the present invention;

[0028] Figure 7 Schematic diagram of the sliding frame structure of the present invention;

[0029] Figure 8 Schematic diagram of the sectional view of the side plate of the present invention;

[0030] Figure 9 In the present invention Figure 8 Enlarged structure schematic diagram at position A;

[0031] Figure 10 Schematic diagram of the sectional view of the control board of the present invention.

[0032] In the figure:

[0033] 1. Bottom plate; 2. Conveyor belt; 3. Side plate; 4. Control panel; 5. Support; 6. Mounting hole; 7. Outer sleeve; 8. Limit ring; 9. Limit groove; 10. Inner sliding rod; 11. Inner concave wheel; 12. Resting groove; 13. First helical groove; 14. First inner sliding hole; 15. Second spring; 16. Pull rod; 17. Through hole; 18. First helical block; 19. Limit sliding groove; 20. Limit slider; 21. First spring; 22. Slide frame; 23. Top plate; 24. Electric telescopic rod; 25. Extension shaft; 26. Transmission cavity; 27. Support shaft; 28. Transmission belt; 29. Second helical groove; 30. Extension sliding groove; 31. Extension block; 32. Second inner sliding hole; 33. Third spring; 34. Second helical block; 35. Inner sliding cavity; 36. Through sliding hole; 37. Fourth spring; 38. Inner sliding plate; 39. Clamping plate; 40. Rubber pad; 41. Intermediate pump; 42. Side pump; 43. Inflation hole; 44. First button; 45. Second button; 46. First sliding plate; 47. First rubber plate; 48. Second sliding plate; 49. Second rubber plate; 50. Air outlet; 51. Concave groove. Detailed implementation manner

[0034] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0035] As Figure 1 shown, an electromagnetic valve airtightness testing device disclosed in an embodiment of the present invention includes a bottom plate 1, a conveyor belt 2 is arranged on the bottom plate 1, a side plate 3 is fixedly installed on the side of the bottom plate 1, a control panel 4 is slidably installed on the side plate 3, the control panel 4 is drivingly connected to the conveyor belt 2, a clamping mechanism is arranged at the bottom of the control panel 4, and a gas guiding mechanism is arranged on the control panel 4, and the gas guiding mechanism is connected to the clamping mechanism; by drivingly connecting the control panel 4 with the conveyor belt 2, the control panel 4 can drive the conveyor belt 2 to rotate when sliding, so that the next electromagnetic valve to be detected moves to the lower part of the clamping mechanism, preparing for the next detection. This setting enables the device to continuously detect electromagnetic valves and improves the working efficiency of the device.

[0036] As Figures 2 - 4As shown, a support 5 is fixedly installed at the middle position near both ends of the upper surface of the bottom plate 1, a mounting hole 6 is penetrated through the position near the top of the support 5, an outer sleeve 7 is rotatably installed in the mounting hole 6, a limiting ring 8 is coaxially fixedly installed on the outer surface of the outer sleeve 7, a limiting groove 9 is coaxially provided on the outer side of the mounting hole 6, the limiting ring 8 rotates in the limiting groove 9, an inner slide rod 10 is slidably installed inside the outer sleeve 7, one end of the inner slide rod 10 extends to the outside of the outer sleeve 7, and the outer ends of the outer sleeve 7 and the inner slide rod 10 are coaxially fixedly installed An inner concave wheel 11 is installed. The two inner concave wheels 11 located on the two outer sleeves 7 and the two inner concave wheels 11 located on the two inner slide bars 10 are all connected through the conveyor belt 2. The outer sides of the two conveyor belts 2 are symmetrically provided with shelf grooves 12. By symmetrically providing the shelf grooves 12 on the two conveyor belts 2, the stability of the solenoid valve located on the conveyor belt 2 can be ensured. By providing the sliding inner slide bar 10, the distance between the two conveyor belts 2 can be adjusted, so that the device can stably convey solenoid valves of different lengths.

[0037] like Figure 5 As shown, the inner surface of the outer sleeve 7 is coaxially provided with two first oblique tooth grooves 13, the two first oblique tooth grooves 13 are symmetrical, and the inclined surfaces of the two first oblique tooth grooves 13 are opposite, the interior of the inner slide rod 10 is coaxially provided with a first inner slide hole 14, and a pull rod 16 is slidably installed inside the first inner slide hole 14 through a second spring 15, and the outer end of the pull rod 16 extends to the outside of the inner slide rod 10, and through holes 17 are symmetrically penetrated on both sides corresponding to the first inner slide hole 14, and a first oblique tooth block 18 is slidably installed inside the through hole 17, and the inclined surfaces of the two first oblique tooth blocks 18 are opposite, and a limiting slide groove 19 is provided on the side of the through hole 17, and a limiting slider 20 is fixedly installed on the side of the first oblique tooth block 18 near the middle position, and the limiting slider 20 slides in the limiting slide groove 19, and a first spring 21 is provided between the limiting slider 20 and the limiting slide groove 19 near the end of the outer sleeve 7, and the pull rod 16 and the first oblique tooth block 18 are located at One end of the first inner sliding hole 14 is provided with an arc surface. When the first bevel tooth block 18 abuts on the pull rod 16, the first bevel tooth block 18 abuts in the first bevel tooth groove 13. When the first bevel tooth block 18 does not abut on the pull rod 16, the first bevel tooth block 18 disengages from the first bevel tooth groove 13. By providing two first bevel tooth grooves 13 with opposite bevel tooth surfaces and providing a first bevel tooth block 18 that can be driven by the pull rod 16, when it is necessary to slide the inner sliding rod 10, the pull rod 16 is pulled to disengage the first bevel tooth block 18 from the first bevel tooth groove 13. When it is necessary to lock the inner sliding rod 10 with the outer sleeve 7, the pull rod 16 is released so that the pull rod 16 pushes the first bevel tooth block 18 so that the first bevel tooth block 18 abuts against the first bevel tooth groove 13, which is convenient for operation. The first bevel tooth block 18 is stuck in the first bevel tooth groove 13 and can also prevent the inner sliding rod 10 from rotating relative to the outer sleeve 7, so that the inner sliding rod 10 can be driven to rotate when the outer sleeve 7 rotates.

[0038] like Figure 6 As shown, side panels 3 are symmetrically fixedly installed on both sides of the bottom plate 1 near the discharge end, and sliding frames 22 are sleeved on the side panels 3. Both ends of the control panel 4 are fixedly connected to the two sliding frames 22 respectively, and a top panel 23 is fixedly installed on the top of the side panels 3. An electric telescopic rod 24 is fixedly installed in the middle position of the upper surface of the top panel 23. The bottom end of the electric telescopic rod 24 passes through the top panel 23 and is fixedly connected to the upper surface of the control panel 4; the electric telescopic rod 24 can drive the control panel 4 to slide up and down, and the two sliding frames 22 can ensure the stability of the control panel 4.

[0039] like Figure 3 and Figure 8 As shown, an extension shaft 25 is coaxially fixedly installed on the outer side of one of the inner concave wheels 11, a transmission cavity 26 is opened inside one of the side panels 3, a support shaft 27 is rotatably installed on the top of the transmission cavity 26, the outer end of the extension shaft 25 extends into the transmission cavity 26 and is connected to the support shaft 27 through a transmission belt 28, and a second oblique tooth groove 29 is opened on the outer surface of the transmission belt 28; when the transmission belt 28 is driven, it will drive the inner concave wheel 11 to rotate through the extension shaft 25, thereby driving the conveyor belt 2 to drive the solenoid valve to rotate.

[0040] like Figures 6 - 9 As shown, an extension slot 30 is provided on the inner side of one of the side plates 3, and the side of the extension slot 30 is connected to the transmission chamber 26. An extension block 31 is fixedly installed on the inner side of one of the slide frames 22, and the extension block 31 slides in the extension slot 30. A second inner sliding hole 32 is provided on the side of the extension block 31 close to the transmission chamber 26, and a second beveled tooth block 34 matching the second beveled tooth groove 29 is slidably installed inside the second inner sliding hole 32 through a third spring 33; when the extension block 31 slides up, the second beveled tooth block 34 abuts against the second beveled tooth groove 29, thereby driving the transmission belt 28 to rotate, and when the extension block 31 slides down, the second beveled tooth block 34 is abutted and retracted into the second inner sliding hole 32.

[0041] like Figure 10As shown, the clamping mechanism includes an inner sliding cavity 35, which is opened inside the control board 4. The bottom of the inner sliding cavity 35 is connected to the outside through two symmetrical through sliding holes 36. Inner sliding plates 38 are slidably installed at both ends of the inner sliding cavity 35 through fourth springs 37. When the fourth spring 37 is in a normal state, the through sliding hole 36 is blocked by the inner sliding plate 38. When the two inner sliding plates 38 abut against each other at the middle position of the inner sliding cavity 35, the through sliding hole 36 is blocked by the inner sliding plate 38. A clamping plate 39 is fixedly installed at the bottom of the inner sliding plate 38. The bottom end of the clamping plate 39 passes through the through sliding hole 36 and extends to the outside of the control board 4. A rubber pad 40 is fixedly installed at the bottom end inside the clamping plate 39. When the fourth spring 37 is in a normal state, the clamping plate 39 is located at the outermost side within the through sliding hole 36. When an external force is applied to the outer end of the inner sliding plate 38, the inner sliding plate 38 drives the clamping plate 39 to slide inward, clamping both ends of the solenoid valve. The rubber pad 40 can ensure the sealing of the clamping position and prevent gas leakage.

[0042] As Figure 6 and Figure 10 shown, the air guiding mechanism includes an intermediate pump 41 and a side pump 42. The intermediate pump 41 and the side pump 42 are respectively fixedly installed at the middle position and the position close to the side on one side of the control board 4. The intermediate pump 41 is connected to the middle position of the inner sliding cavity 35, and the side pump 42 is connected to the end of the inner sliding cavity 35. An air inflation hole 43 is opened inside the clamping plate 39. One end of the air inflation hole 43 passes through the inner sliding plate 38 and is connected to the end of the inner sliding cavity 35, and the other end of the air inflation hole 43 passes through the middle position of the rubber pad 40 and is connected to the outside. A first button 44 is arranged on the upper surface of the control board 4, and a second button 45 is arranged at the bottom end of the extension sliding groove 30. The intermediate pump 41, the side pump 42, and the electric telescopic rod 24 are all connected to the first button 44 and the second button 45 through a controller; by setting two buttons, when the second button 45 is pressed by the extension block 31, the intermediate pump 41 pumps air outwards, causing the two clamping plates 39 to clamp the solenoid valve, and the side pump 42 inflates the inner sliding cavity 35, and the gas enters the solenoid valve through the air inflation hole 43. After the pressure inside the solenoid valve reaches the working pressure during use, the side pump 42 stops operating, and the electric telescopic rod 24 drives the solenoid valve to rise. When the first button 44 is pressed, the intermediate pump 41 stops operating and connects the middle position of the inner sliding cavity 35 to the outside. At this time, if the solenoid valve leaks, the inner sliding plate 38 will slide outwards, releasing the solenoid valve and causing it to fall. If the solenoid valve has qualified sealing and does not leak, the inner sliding plate 38 does not slide, and the clamping plate 39 continues to clamp the solenoid valve. Then, the telescopic end of the electric telescopic rod 24 descends. This setting can automatically separate the leaking solenoid valve and reduce the later workload.

[0043] As Figure 1As shown in the figure, a first sliding plate 46 is fixedly installed on one side of the side plate 3 close to the discharge end. An inclined first rubber plate 47 is fixedly installed at the top of the first sliding plate 46. When the control plate 4 slides to the topmost position, the first rubber plate 47 is located below the rubber pad 40. Both ends of the first rubber plate 47 are not fixedly connected to the side plate 3. A second sliding plate 48 is also fixedly installed on one side of the side plate 3 close to the discharge end. An inclined second rubber plate 49 is fixedly installed at the top of the second sliding plate 48. The second rubber plate 49 is located directly below the first rubber plate 47, and both ends of the second rubber plate 49 are not fixedly connected to the side plate 3. By not fixedly connecting both ends of the two rubber plates to the side plate 3, when the electric telescopic rod 24 drives the solenoid valve to rise, the two rubber plates will be pushed and bent, so as not to affect the rise of the solenoid valve. When a leaking solenoid valve is detected, when it is at the top, the clamping plate 39 is loosened, and the solenoid valve falls onto the first rubber plate 47 and slides down from the first sliding plate 46. The non-leaking solenoid valve falls onto the second rubber plate 49 and falls from the second sliding plate 48, automatically classifying the qualified and unqualified solenoid valves and improving work efficiency.

[0044] As Figure 6 and Figure 10 shown, an air outlet hole 50 is formed through the side of the sliding frame 22. The air outlet hole 50 is communicated with the end of the inner sliding cavity 35. An inward recess 51 is formed on the inner side of the side plate 3. The inward recess 51 is located between the first rubber plate 47 and the second rubber plate 49. Under normal circumstances, the air outlet hole 50 abuts against the side plate 3, and the gas at the end of the inner sliding cavity 35 cannot leak out. When the air outlet hole 50 coincides with the inward recess 51, the gas at the end of the inner sliding cavity 35 leaks out, causing the inner sliding plate 38 to slide outwards, and the clamping plate 39 loosens the non-leaking solenoid valve, causing it to fall onto the second rubber plate 49.

[0045] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or position relationships, are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0046] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A solenoid valve air tightness test device, characterized in that: The conveyor belt (2) comprises a bottom plate (1), a conveyor belt (2) is arranged on the bottom plate (1), a side plate (3) is fixedly mounted on the side of the bottom plate (1), a control plate (4) is slidably mounted on the side plate (3), the control plate (4) is drivingly connected to the conveyor belt (2), a clamping mechanism is arranged at the bottom of the control plate (4), an air guide mechanism is arranged on the control plate (4), and the air guide mechanism is connected to the clamping mechanism; A support (5) is fixedly installed at the middle position near both ends of the upper surface of the bottom plate (1), and a mounting hole (6) is penetrated through the position near the top of the support (5). An outer sleeve (7) is rotatably installed in the mounting hole (6). A limit ring (8) is coaxially fixedly installed on the outer surface of the outer sleeve (7). A limit groove (9) is coaxially provided on the outer side of the mounting hole (6). The limit ring (8) rotates in the limit groove (9). An inner slide rod (10) is slidably installed inside the outer sleeve (7). One end of the inner slide rod (10) extends to the outside of the outer sleeve (7). An inner concave wheel (11) is coaxially fixedly installed on the outer ends of the outer sleeve (7) and the inner slide rod (10). The two inner concave wheels (11) located on the two outer sleeves (7) and the two inner concave wheels (11) located on the two inner slide rods (10) are both connected by transmission through the conveyor belt (2). The outer sides of the two conveyor belts (2) are symmetrically provided with shelf grooves (12); The inner surface of the outer sleeve (7) is coaxially provided with two first oblique tooth grooves (13), the two first oblique tooth grooves (13) are symmetrical, and the oblique surfaces of the two first oblique tooth grooves (13) are opposite to each other. The inner slide rod (10) is coaxially provided with a first inner slide hole (14), a pull rod (16) is slidably installed inside the first inner slide hole (14) through a second spring (15), and the outer end of the pull rod (16) extends to the outside of the inner slide rod (10). Through holes (17) are symmetrically penetrated on the corresponding two sides of the first inner slide hole (14), and a first oblique tooth block (18) is slidably installed inside the through hole (17), and the oblique surfaces of the two first oblique tooth blocks (18) are opposite to each other. A limiting slide groove (19) is provided on the side of the through hole (17). A limiting slider (20) is fixedly installed near the middle of the side of the first bevel gear block (18), and the limiting slider (20) slides in the limiting slide groove (19). A first spring (21) is arranged between the limiting slider (20) and one end of the limiting slide groove (19) close to the outer sleeve (7). The pull rod (16) and the end of the first bevel gear block (18) located in the first inner slide hole (14) are both arranged with arc surfaces. When the first bevel gear block (18) abuts against the pull rod (16), the first bevel gear block (18) abuts against the first bevel gear groove (13); when the first bevel gear block (18) does not abut against the pull rod (16), the first bevel gear block (18) is separated from the first bevel gear groove (13); The side panels (3) are symmetrically fixedly mounted at positions near the discharge end on both sides of the bottom panel (1); a sliding frame (22) is sleeved on the side panels (3); the two ends of the control panel (4) are respectively fixedly connected to the two sliding frames (22); a top panel (23) is fixedly mounted on the top of the side panel (3); an electric telescopic rod (24) is fixedly mounted in the middle of the upper surface of the top panel (23); the bottom end of the electric telescopic rod (24) passes through the top panel (23) and is fixedly connected to the upper surface of the control panel (4); An extension shaft (25) is coaxially fixedly mounted on the outer side of one of the inner concave wheels (11), a transmission cavity (26) is provided inside one of the side plates (3), a support shaft (27) is rotatably mounted on the top of the transmission cavity (26), an outer end of the extension shaft (25) extends into the transmission cavity (26) and is connected to the support shaft (27) through a transmission belt (28), and a second oblique tooth groove (29) is provided on the outer surface of the transmission belt (28); An extension slot (30) is provided on the inner side of one of the side plates (3), and the side of the extension slot (30) is connected to the transmission cavity (26); an extension block (31) is fixedly installed on the inner side of one of the slide frames (22), and the extension block (31) slides in the extension slot (30); a second inner slide hole (32) is provided on a side of the extension block (31) close to the transmission cavity (26); a second bevel tooth block (34) matching the second bevel tooth slot (29) is slidably installed inside the second inner slide hole (32) via a third spring (33); The clamping mechanism comprises an inner sliding cavity (35), the inner sliding cavity (35) being opened inside the control plate (4), the bottom of the inner sliding cavity (35) being connected to the outside through two symmetrical through sliding holes (36), both ends of the inner sliding cavity (35) being slidably mounted with inner sliding plates (38) through fourth springs (37), when the fourth spring (37) is in a normal state, the through sliding holes (36) are blocked by the inner sliding plates (38), and when the two inner sliding plates (38) are in the inner sliding cavity (3 5) are pressed against each other at the middle position, the through sliding hole (36) is blocked by the inner sliding plate (38), a clamping plate (39) is fixedly installed at the bottom of the inner sliding plate (38), the bottom end of the clamping plate (39) passes through the through sliding hole (36) and extends to the outside of the control plate (4), a rubber pad (40) is fixedly installed at the bottom end of the inner side of the clamping plate (39), and when the fourth spring (37) is in a normal state, the clamping plate (39) is located at the outermost side of the through sliding hole (36); The air guide mechanism comprises a middle pump (41) and a side pump (42). The middle pump (41) and the side pump (42) are respectively fixedly mounted at a middle position and a position close to a side of the control panel (4). The middle pump (41) is connected to a middle position of the inner sliding cavity (35). The side pump (42) is connected to an end of the inner sliding cavity (35). An air filling hole (43) is provided inside the clamping plate (39). One end of the air filling hole (43) passes through the inner sliding cavity. The plate (38) is connected to the end of the inner sliding cavity (35), the other end of the inflation hole (43) passes through the middle position of the rubber pad (40) and is connected to the outside, the upper surface of the control plate (4) is provided with a first button (44), the bottom end of the extension slide groove (30) is provided with a second button (45), and the middle pump (41), the side pump (42) and the electric telescopic rod (24) are connected to the first button (44) and the second button (45) through a controller; When the second button (45) is pressed by the extension block (31), the middle pump (41) draws air outward, so that the two clamping plates (39) clamp the electromagnetic valve, and the side pump (42) inflates the inner sliding cavity (35). The gas enters the electromagnetic valve through the inflation hole (43). When the pressure in the electromagnetic valve reaches the working pressure during use, the side pump (42) stops running, and the electric telescopic rod (24) drives the electromagnetic valve to rise. When the first button (44) is pressed, the middle pump (41) stops running, and the middle position of the inner sliding cavity (35) is connected to the outside.

2. The solenoid valve air tightness testing device according to claim 1, characterized in that: A first sliding plate (46) is fixedly mounted on one side of the side plate (3) close to the discharge end, and an inclined first rubber plate (47) is fixedly mounted on the top of the first sliding plate (46). When the control plate (4) slides to the top, the first rubber plate (47) is located below the rubber pad (40), and the two ends of the first rubber plate (47) are not fixedly connected to the side plate (3). A second sliding plate (48) is also fixedly mounted on one side of the side plate (3) close to the discharge end, and an inclined second rubber plate (49) is fixedly mounted on the top of the second sliding plate (48). The second rubber plate (49) is located directly below the first rubber plate (47), and the two ends of the second rubber plate (49) are not fixedly connected to the side plate (3).

3. The solenoid valve air tightness testing device according to claim 2, characterized in that: An air outlet hole (50) is formed through the side of the sliding frame (22), the air outlet hole (50) is communicated with the end of the inner sliding cavity (35), and an inner recessed groove (51) is formed on the inner side of the side plate (3), the inner recessed groove (51) is located between the first rubber plate (47) and the second rubber plate (49).

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