Explosion-proof valve core testing device

Abstract

The utility model discloses an explosion-proof valve core testing device which comprises a detection water tank and a ventilation detection assembly, the ventilation detection assembly comprises a bearing connection plate and an air compression pump, the top end of the bearing connection plate is slidably provided with a positioning installation plate, and the top end of the positioning installation plate is provided with a limiting clamping plate. A plurality of anti-explosion valve core main bodies are clamped between the limiting clamping plate and the positioning mounting plate at equal intervals; mounting sliding seats are arranged on the two sides of the bearing connecting plate, an air inlet detection unit and an air leakage detection unit are arranged at the top ends of the two mounting sliding seats correspondingly, and the air inlet detection unit and the air leakage detection unit are opposite in structure and are symmetrically arranged. According to the utility model, the air inlet detection unit and the air leakage detection unit are matched with the limiting clamping plate and the positioning mounting plate, the air inlet performance and the air leakage performance of a plurality of explosion-proof valve core main bodies are detected in sequence, the detection speed is high, the detection mode is simple, the detection result is clear, and the performance detection of large-batch explosion-proof valve core main bodies can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of valve core testing devices, in particular to an explosion-proof valve core testing device. Background Art

[0002] In the prior art, a valve core, also known as an airtight core, is primarily used to supply air to the tire and prevent tire leaks. The valve core is a short cylindrical section with a hollow top and a solid bottom. A small hole is opened on the side of the bottom end to connect to the hollow section.

[0003] The function of the explosion-proof valve core is to prevent the tire from exploding when the air pressure is too high. By adding an overpressure safety valve, when the tire pressure exceeds the set limit, the safety valve can automatically exhaust the air outward. When the exhaust causes the tire pressure to drop slightly, the valve automatically closes, and the air pressure remains within the specified range.

[0004] Explosion-proof valve cores have gradually entered the market and are used in a variety of vehicles. However, during the production process, explosion-proof valve cores require testing. In addition to service life testing, they are generally also subject to intake and deflation performance testing to ensure that they function properly. However, current market testing for explosion-proof valve cores is mostly limited to intake performance testing. Equipment for deflation performance testing is limited, making it inconvenient to conduct large-scale testing of explosion-proof valve cores. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an explosion-proof valve core testing device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The top of the air filter presses on the cam face, and the top of the air filter presses on the cam face is fixed with the air filter press, and the air filter presses the cam face, and the air filter presses the cam face.

[0008] As a further solution of the present invention: a group of guide limit plates are fixedly connected to the inner walls on both sides of the front and back of the detection water tank, and a plurality of support springs are equidistantly arranged between the two guide limit plates, and the top end of the support spring is fixed to the load-bearing connecting plate.

[0009] As a further solution of the present invention: a plurality of connecting slide columns are fixedly connected to both sides of the load-bearing connecting plate at equal distances, and the connecting slide columns penetrate the mounting slide and extend outward.

[0010] As a further solution of the present invention: a tension spring clamp is fixedly installed on the extended end of the connecting slide, and a connecting tension spring is fixedly connected to the side of the tension spring clamp close to the mounting slide, and the connecting tension spring is fixedly connected to the mounting slide.

[0011] As a further solution of the present invention: a support frame arm is fixedly installed on one end of the upper surface of the load-bearing connecting plate, and a ventilation three-way valve is fixedly installed on the top end of the support frame arm.

[0012] As a further solution of the present invention: an air guide hose is fixedly installed on the air inlet of the ventilation three-way valve, one end of the air guide hose is fixedly connected to an air compression pump, and the air compression pump is fixedly installed on one end of the detection water tank.

[0013] As a further solution of the present invention: fixed mounting pins are fixedly installed at equal intervals on the upper surface of the limit clamping plate, and a connecting top plate is fixedly installed on the top ends of the plurality of fixed mounting pins.

[0014] As a further solution of the present invention: the upper surface of the connecting top plate is provided with a mounting top plate, and a telescopic cylinder is fixedly installed on the upper surface of the mounting top plate. The telescopic end of the telescopic cylinder passes through the mounting top plate and is fixedly installed on the upper surface of the connecting top plate.

[0015] Compared with the prior art, the present invention provides an explosion-proof valve core testing device with the following beneficial effects:

[0016] The explosion-proof valve core testing device cooperates with the air intake detection unit and the air leakage detection unit in conjunction with the limit clamping plate and the positioning mounting plate to perform air intake performance and air leakage performance tests on multiple explosion-proof valve core bodies in sequence. The testing speed is fast, the testing method is simple, and the test results are clear. The device can be used to perform large-scale performance tests on explosion-proof valve core bodies.

[0017] The explosion-proof valve core testing device, through the cooperation of the connecting tension spring and the guide limit plate, enables the installation slide to automatically approach the load-bearing connection plate during the descending process and completes the clamping of the explosion-proof valve core body. The operation is simple and easy to use.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the overall assembly of the utility model Figure 1 ;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the overall assembly of the utility model Figure 1 ;

[0021] Figure 3 It is a partial cross-sectional structural diagram of the overall assembly of the utility model;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0023] In the figure: 1. Install the bottom plate; 2. Test water tank; 3. Drain valve pipe; 4. Air compressor pump; 5. Air guide hose; 6. Ventilation three-way valve; 7. Support pole; 8. Install the top plate; 9. Telescopic cylinder; 10. Connect the top plate; 11. Fix the mounting pin; 12. Limit clamp; 13. Positioning mounting plate; 14. Load-bearing connecting plate; 15. Guide slide; 16. Support frame arm; 17. Guide limit plate; 18. Support spring; 19. Explosion-proof valve core body; 20. Connect the slide; 21. Install the slide seat; 22. Connect the tension spring; 23. Tension spring clamp; 24. Inlet hose; 25. Diverter air box; 26. Exhaust pipe head; 27. One-way vent valve; 28. Connect the air pipe; 29. ​​Test connection box; 30. Ventilation test chamber; 31. Test clamp; 32. Exhaust pressure relief valve; 33. Install the clamp. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] An explosion-proof valve core testing device, such as Figures 1 to 4 As shown, it includes: a detection water tank 2 and a ventilation detection component, a plurality of support legs are fixedly installed at equal distances on the bottom end of the detection water tank 2, a mounting base 1 is fixedly installed on the bottom end of the plurality of support legs, and a drainage valve pipe 3 is fixedly installed on one side of the bottom end of the detection water tank 2.

[0026] The ventilation detection component includes a supporting connecting plate 14 and an air compression pump 4. The air compression pump 4 is fixedly installed on the top of one end of the detection water tank 2, and a support spring 18 is fixedly installed at an equal distance on the bottom end of the supporting connecting plate 14. The bottom end of the support spring 18 is fixedly installed on the inner wall of the bottom end of the detection water tank 2.

[0027] The top of the bearing connecting plate 14 is integrally formed with a limiting slide rail, and the top of the limiting slide rail is slidably mounted with a positioning mounting plate 13 . A limiting baffle welded to the bearing connecting plate 14 is provided on the side of the positioning mounting plate 13 close to the air compression pump 4 .

[0028] A support arm 16 is fixedly installed on one end of the upper surface of the supporting connecting plate 14 close to the air compression pump 4, and a ventilation three-way valve 6 is fixedly installed on the top of the support arm 16. An air guide hose 5 is fixedly installed on the air inlet of the ventilation three-way valve 6, and one end of the air guide hose 5 is fixedly connected to the air compression pump 4.

[0029] A limiting clamping plate 12 is set at the top of the positioning mounting plate 13. A plurality of valve core clamping grooves are equidistantly opened on the upper surface of the positioning mounting plate 13. A valve core limiting groove is equidistantly opened on the lower surface of the limiting clamping plate 12. The inner wall of the valve core limiting groove is fixedly connected with a protective rubber pad.

[0030] An explosion-proof valve core body 19 is installed inside the valve core slot. When the limiting clamping plate 12 is attached to the upper surface of the positioning mounting plate 13, the protective rubber pad squeezes the explosion-proof valve core body 19 to keep the explosion-proof valve core body 19 stable.

[0031] Fixed mounting pins 11 are equidistantly fixedly installed on the upper surface of the limiting card plate 12, and a connecting top plate 10 is fixedly installed on the top ends of multiple fixed mounting pins 11. The upper surface of the connecting top plate 10 is provided with a mounting top plate 8, and a plurality of guide slides 15 are equidistantly fixedly installed on the upper surface of the connecting top plate 10. The guide slides 15 pass through the mounting top plate 8 and extend upward, and the guide slides 15 are slidably connected to the connecting top plate 10.

[0032] A telescopic cylinder 9 is fixedly installed on the upper surface of the mounting top plate 8, and the telescopic end of the telescopic cylinder 9 passes through the mounting top plate 8 and is fixedly installed on the upper surface of the connecting top plate 10; connecting support arms are fixedly installed at equal distances on the front and back surfaces of the mounting top plate 8, and a supporting upright 7 is fixedly installed at the bottom end of the connecting support arm, and the bottom end of the supporting upright 7 is fixedly installed on the upper surface of the mounting base plate 1.

[0033] A group of connecting slides 20 are fixedly connected to both sides of the load-bearing connecting plate 14, and each group of connecting slides 20 is arranged in multiples at equal intervals, and each group of connecting slides 20 is slidably connected to a mounting slide 21, and the connecting slides 20 pass through the mounting slide 21 and extend outward, and a tension spring clamp 23 is fixedly installed on the extended end of the connecting slide 20, and a connecting tension spring 22 is fixedly connected to the side of the tension spring clamp 23 close to the mounting slide 21, and the connecting tension spring 22 is fixedly connected to the mounting slide 21.

[0034] The bearing connecting plate 14 is arranged at the top of the detection water tank 2, and a group of guide limit plates 17 are welded to the bottom ends of the inner walls on both sides of the front and back of the detection water tank 2. Each group of guide limit plates 17 is arranged in multiple equal intervals, and the side of the guide limit plate 17 close to the bearing connecting plate 14 is set as an inclined surface.

[0035] When the bearing connecting plate 14 drives the mounting slide 21 to move downward through the connecting slide 20 and enters the interior of the detection water tank 2, the guide limit plate 17 squeezes the mounting slide 21, so that the mounting slide 21 approaches the bearing connecting plate 14. When the bearing connecting plate 14 moves to the lower limit position, the mounting slide 21 fits against the bearing connecting plate 14.

[0036] An air intake detection unit and an air deflation detection unit are respectively provided at the top ends of the two mounting slides 21 . The air intake detection unit and the air deflation detection unit are arranged relative and symmetrically to perform air intake performance tests and air deflation performance tests on the explosion-proof valve core body 19 .

[0037] The air intake detection unit includes a diverter air box 25 and a detection connection box 29 . An air intake hose 24 is fixedly installed on the top of the diverter air box 25 , and the air intake hose 24 is connected to an air outlet of the ventilation three-way valve 6 .

[0038] The bottom end of the diversion air box 25 is fixedly connected to multiple air outlet pipe heads 26 at equal distances, the bottom end of the air outlet pipe head 26 is fixedly installed with a one-way ventilation valve 27, the bottom end of the one-way ventilation valve 27 is fixedly installed with a connecting air pipe 28, and the bottom ends of the multiple connecting air pipes 28 are fixedly connected to a detection connection box 29.

[0039] The interior of the detection connection box 29 is evenly divided into multiple ventilation detection chambers 30, each ventilation detection chamber 30 corresponds to a connecting air pipe 28, and both ends of the detection connection box 29 are fixedly connected with a mounting bracket 33, which is fixedly installed on the top of the mounting slide 21.

[0040] A plurality of detection clamps 31 that are adapted to engage with the explosion-proof valve core body 19 are fixedly connected to the side of the detection connection box 29 close to the positioning mounting plate 13, and a plurality of exhaust pressure relief valves 32 are fixedly installed at equal intervals on the detection connection box 29. The plurality of detection clamps 31 and the plurality of exhaust pressure relief valves 32 all correspond to the plurality of ventilation detection chambers 30.

[0041] The one-way vent valve 27 can only allow air to flow from the diversion air box 25 to the inside of the detection connection box 29, and the exhaust pressure relief valve 32 can only discharge the air inside the ventilation detection chamber 30 to the outside, and the pressure release standard of the exhaust pressure relief valve 32 is less than or equal to the deflation pressure standard of the explosion-proof valve core body 19.

[0042] Working principle:

[0043] Please refer to Figures 1 to 4 , assemble the device as shown in the figure;

[0044] When the device is in use, first inject clean water into the detection water tank 2 so that the clean water completely submerges the guide limit plate 17, then clamp the positioning mounting plate 13 on which the explosion-proof valve core body 19 is installed onto the limit slide rail on the upper surface of the bearing connecting plate 14, and fit it with the limit baffle; then start the telescopic cylinder 9, which drives the limit card plate 12 downward by connecting the top plate 10 and the fixed mounting pin 11, so that the limit card plate 12 fits the upper surface of the positioning mounting plate 13, so that the protective rubber pad squeezes the explosion-proof valve core body 19; the telescopic cylinder 9 continues to extend and retract, Long, through the limiting card plate 12, the positioning mounting plate 13 is squeezed, the positioning mounting plate 13 moves downward, and squeezes the support spring 18, and the positioning mounting plate 13 drives the two mounting slides 21 to move downward synchronously through the connecting slide 20; under the action of the two sets of guide limiting plates 17, the mounting slide 21 approaches the load-bearing connecting plate 14 and stretches the connecting tension spring 22 until the load-bearing connecting plate 14 moves down to the specified position inside the detection water tank 2. At this time, the mounting slide 21 is in contact with the load-bearing connecting plate 14, and the detection clamp head 31 is clamped at both ends of the explosion-proof valve core body 19;

[0045] First, perform an air intake performance test. Start the air compression pump 4. The compressed air enters the air intake detection unit through the ventilation three-way valve 6. The compressed air passes through the corresponding one-way ventilation valve 27 and enters the ventilation detection chamber 30. Then, it passes through the explosion-proof valve core body 19 and enters the ventilation detection chamber 30 of the leakage detection unit. The compressed air is discharged through the exhaust pressure relief valve 32 of the leakage detection unit. Observe whether stable bubbles appear in the test water tank 2 and whether the exhaust pressure relief valve 32 of each leakage detection unit discharges air. If so, the air intake performance of the explosion-proof valve core body 19 involved in the test is good. If not, it means that there is a problem with the air intake performance of the explosion-proof valve core body 19 involved in the test.

[0046] After the air intake performance test is completed, the air leakage performance test is then carried out. The ventilation three-way valve 6 changes the air outlet interface to inject compressed air into the air leakage detection unit. The compressed air passes through the corresponding one-way ventilation valve 27 into the ventilation detection chamber 30, and then passes through the explosion-proof valve core body 19 to enter the ventilation detection chamber 30 of the air intake detection unit. It is then discharged through the exhaust pressure relief valve 32 of the air intake detection unit to observe whether stable bubbles appear in the test water tank 2 and whether the exhaust pressure relief valve 32 of each air leakage detection unit discharges air. If so, the air intake performance of the explosion-proof valve core body 19 involved in the test is good. If not, it means that there is a problem with the air leakage performance of the explosion-proof valve core body 19 involved in the test.

[0047] The above-mentioned exhaust pressure relief valve 32 is an electromagnetic pressure relief valve. When performing intake performance testing, the exhaust pressure relief valve 32 of the intake detection unit is closed and the exhaust pressure relief valve 32 of the leakage detection unit is opened; when performing leakage performance testing, the exhaust pressure relief valve 32 of the leakage detection unit is closed and the exhaust pressure relief valve 32 of the intake detection unit is opened.

[0048] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An explosion-proof valve core testing device, characterized in that: include: A detection water tank (2) and a ventilation detection component, wherein the ventilation detection component comprises a bearing connection plate (14) and an air compression pump (4); a positioning mounting plate (13) is slidably mounted on the top of the bearing connection plate (14); a limiting clamping plate (12) is provided on the top of the positioning mounting plate (13); a plurality of explosion-proof valve core bodies (19) are equidistantly clamped between the limiting clamping plate (12) and the positioning mounting plate (13); mounting slides (21) are provided on both sides of the bearing connection plate (14); and intake detection valves are provided on the tops of the two mounting slides (21). The air intake detection unit and the air leakage detection unit are arranged relative to each other and symmetrically. The air intake detection unit comprises a diverter air box (25) and a detection connection box (29). A plurality of one-way vent valves (27) are equidistantly arranged between the diverter air box (25) and the detection connection box (29). A plurality of detection clamps (31) adapted to engage with an explosion-proof valve core body (19) are fixedly connected to a side of the detection connection box (29) close to the positioning mounting plate (13). A plurality of exhaust pressure relief valves (32) are fixedly installed equidistantly on the detection connection box (29).

2. The explosion-proof valve core testing device according to claim 1, characterized in that: A set of guide limit plates (17) are fixedly connected to the inner walls on both sides of the front and back of the detection water tank (2), and a plurality of support springs (18) are equidistantly arranged between the two guide limit plates (17), and the top ends of the support springs (18) are fixed to the load-bearing connection plate (14).

3. The explosion-proof valve core testing device according to claim 1, characterized in that: A plurality of connecting slides (20) are fixedly connected at equal distances on both sides of the load-bearing connecting plate (14), and the connecting slides (20) pass through the mounting slide seat (21) and extend outwards.

4. The explosion-proof valve core testing device according to claim 3, characterized in that: A tension spring clamp (23) is fixedly mounted on the extended end of the connecting slide (20), and a connecting tension spring (22) is fixedly connected to the side of the tension spring clamp (23) close to the mounting slide (21), and the connecting tension spring (22) is fixedly connected to the mounting slide (21).

5. The explosion-proof valve core testing device according to claim 1, characterized in that: A support frame arm (16) is fixedly mounted on one end of the upper surface of the bearing connection plate (14), and a ventilation three-way valve (6) is fixedly mounted on the top end of the support frame arm (16).

6. The explosion-proof valve core testing device according to claim 5, characterized in that: An air guide hose (5) is fixedly installed at the air inlet of the ventilation three-way valve (6), one end of the air guide hose (5) is fixedly connected to an air compression pump (4), and the air compression pump (4) is fixedly installed at one end of the detection water tank (2).

7. The explosion-proof valve core testing device according to claim 1, characterized in that: Fixed mounting pins (11) are fixedly mounted at equal intervals on the upper surface of the position-limiting clamping plate (12), and a connecting top plate (10) is fixedly mounted on the top ends of a plurality of the fixed mounting pins (11).

8. The explosion-proof valve core testing device according to claim 7, characterized in that: The upper surface of the connecting top plate (10) is provided with a mounting top plate (8), and a telescopic cylinder (9) is fixedly mounted on the upper surface of the mounting top plate (8). The telescopic end of the telescopic cylinder (9) passes through the mounting top plate (8) and is fixedly mounted on the upper surface of the connecting top plate (10).

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