Multifunctional valve test board
The design of the multifunctional valve test bench enables simultaneous testing of valve pressure resistance, sealing performance, and flowability, solving the problem of poor correlation of test results in existing technologies and improving the accuracy and efficiency of testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING GUANGDAO IND TRADES CO LTD
- Filing Date
- 2025-03-13
- Publication Date
- 2026-04-17
AI Technical Summary
In existing valve testing, pressure resistance, sealing and flowability tests are conducted separately, lacking a unified standard. This results in poor correlation and comparability of test results, making it difficult to comprehensively evaluate valve performance.
A multifunctional valve test bench was designed, which uses components such as a sealed shell, a one-way valve, a bellows pipe, a vacuum pump and a motor to simultaneously test the valve's pressure resistance, sealing and flow properties, and to conduct a comprehensive evaluation using pressure difference and gas flow.
It enables comprehensive and correlated testing of valve performance, ensuring the accuracy and comparability of test results, simplifying the operation process, and improving testing efficiency.
Smart Images
Figure CN224136884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of valve testing benches, specifically a multifunctional valve testing bench. Background Technology
[0002] In many industrial sectors such as petroleum, chemical, power, and gas, valves are key components of pipeline systems. Their performance directly affects the safe operation of the entire system. Through testing, potential problems such as leakage and poor sealing of valves can be detected in advance, avoiding safety accidents such as media leakage and abnormal pressure caused by valve failure during actual operation, and ensuring the stable and reliable operation of the production system.
[0003] Existing valve testing procedures often require separate testing of performance aspects such as pressure resistance, sealing, and airflow. Due to the separation of testing stages, it is difficult to comprehensively evaluate valve performance. Furthermore, the lack of a unified testing environment and standards for different test items leads to poor correlation and comparability of test results, which is not conducive to accurately judging the overall quality of the valve.
[0004] In order to ensure that the valve pressure resistance, sealing performance and flowability tests can be carried out consistently and that the valve tests are consistent, this application proposes a multi-functional valve test bench. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a multifunctional valve testing bench that can consistently test the valve's pressure resistance, sealing performance, and flowability, ensuring the correlation of valve testing.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional valve testing bench, including a workbench, a slide groove at the top of the workbench, brackets fixedly connected to the top of the workbench on both the left and right sides of the slide groove, a closed shell slidably connected to the left and right sides of the inner wall of the slide groove, a platform fixedly connected to the middle of the bottom end of the inner wall of the slide groove, the shape of the left and right sides of the outer wall of the platform matching the shape of the bottom of the inner wall of the closed shell, a two-way valve fixedly connected to the inner wall of the opposite end of the closed shell and penetrating both the inner and outer sides of the closed shell, a corrugated pipe fixedly connected to the opposite end of the two-way valve, a one-way valve fixedly connected to the inner wall of the front end of the closed shell on the right side and penetrating both the inner and outer sides of the closed shell, a pressure gauge installed on the left side of the top front left of the closed shell, and a vacuum pump fixedly connected to the right side of the top front of the workbench.
[0007] Further description: The input end of the air pump is fixedly connected to a hose one, the other end of the hose one is fixedly connected to the front end of a one-way valve one, the output end of the air pump is fixedly connected to a hose two, the other end of the hose two is fixedly connected to the right end of a one-way valve two on the right side; here, the hose has a certain degree of toughness, but it is not easy to break when bent.
[0008] Further description: The right end of the sealed shell on the left side is provided with a sealing groove 2, and the left end of the sealed shell on the right side is fixedly connected with a rubber pad 1. The shape of the outer wall of the rubber pad 1 matches the shape of the inner wall of the sealing groove 2. Here, the rubber pad 1 is elastic and will adhere to the inner wall of the sealing groove 2 after being squeezed and contacted by the inner wall of the sealing groove 2.
[0009] Further description: A second rubber pad is fixedly connected to the outer wall of the shelf, and a sealing groove is provided at the bottom of the inner wall of the closed shell. The shape of the left and right sides of the outer wall of the second rubber pad matches the shape of the inner wall of the sealing groove. Here, the second rubber pad is elastic. After being stuck in the sealing groove, it will be subjected to a certain amount of compression force, so that the second rubber pad fits into the sealing groove.
[0010] Further description: A through groove is provided on the lower left side of the second flexible hose, and several cloth curtains are fixedly connected to the top of the inner wall of the through groove; here, the cloth curtains are made of light material, and the bottom will swing when subjected to wind force, and the through groove is aligned with the outlet of the second one-way valve on the left.
[0011] Further description: A motor is fixedly connected to the middle of the top of the bracket, and the drive end of the motor passes through the inside of the bracket and is fixedly connected to an adapter rod; here, the motor provides a power source for the adapter rod, enabling it to rotate around the center.
[0012] Further description: The top of the adapter rod is rotatably connected to the front and rear sides of both sides, and the top of the connecting rod is rotatably connected to the opposite side of both sides of the top. The upper side of the outer wall of the slider is slidably connected to the inner wall of the left and right sides of the top of the bracket respectively; here, the position of the slider is limited to the slide rail groove opened in the inner wall of the top of the bracket.
[0013] Further description: Each of the bottom ends of the connecting rods is rotatably connected to a connecting block on the opposite side, and the bottom ends of the connecting blocks are fixedly connected to the top end of the closed shell on the opposite side; here, when the connecting blocks are displaced, they can drive the closed shell to move within the sliding groove.
[0014] Beneficial effects:
[0015] 1. In this utility model, the valve is placed on a platform and sealed with a closed shell. The valve is connected to a one-way valve and a corrugated pipe. Then, an air pump, a hose, and a hose are connected to the one-way valve to reduce the internal pressure and create a pressure difference with the air pressure inside the valve, thus achieving a pressure resistance test. At the same time, the extracted gas is discharged into the valve through the hose. If the valve is not blocked, the gas will be discharged from the left one-way valve and blow the curtain, thus testing the valve's flowability. If the valve's sealing effect needs to be tested, the valve is closed first and the above process is repeated. If no gas is discharged from the left one-way valve, it proves that the valve has good sealing performance. This solution realizes the simultaneous testing of the valve's pressure resistance, sealing, and flowability, ensuring the correlation of the tests.
[0016] 2. In this utility model, the cooperation of rubber pad 2, sealing groove 1 and rubber pad 1 and sealing groove 2 can enhance the sealing between the two closed shells after they are closed. Then, with the cooperation of motor, adapter rod, connecting rod, slider and connecting block, the assembly and closure between the closed shells is completed. No manual operation with tools is required, which is convenient and fast. Attached Figure Description
[0017] Figure 1 This is a perspective view of the multifunctional valve test bench of this utility model;
[0018] Figure 2 This is a cross-sectional view of the support frame of the multifunctional valve test bench of this utility model;
[0019] Figure 3 This is a schematic diagram of the right-side enclosed shell structure of the multifunctional valve test bench of this utility model;
[0020] Figure 4 This is a schematic diagram of the workbench structure of the multifunctional valve testing bench of this utility model.
[0021] In the diagram: 1. Workbench; 2. Slide rail; 3. Enclosed shell; 4. Air pump; 5. One-way valve 1; 6. Hope 1; 7. One-way valve 2; 8. Hope 2; 9. Through groove; 10. Curtain; 11. Motor; 12. Adapter rod; 13. Connecting rod; 14. Connecting block; 15. Sliding block; 16. Corrugated pipe; 17. Rubber pad 1; 18. Sealing groove 1; 19. Storage platform; 20. Rubber pad 2; 21. Pressure gauge; 22. Sealing groove 2; 23. Support. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] Please see Figures 1-2A multi-functional valve testing bench includes a workbench 1, a slide groove 2 at the top of the workbench 1, brackets 23 fixedly connected to the top of the workbench 1 on both the left and right sides of the slide groove 2, a closed shell 3 slidably connected to the inner wall of the slide groove 2 on both the left and right sides, a platform 19 fixedly connected to the middle of the bottom of the inner wall of the slide groove 2, the shape of the outer wall of the platform 19 on both the left and right sides matches the shape of the bottom of the inner wall of the closed shell 3, a one-way valve 2 7 fixedly connected to the inner wall of the opposite end of the closed shell 3 and passing through both the inner and outer sides of the closed shell 3, a corrugated pipe 16 fixedly connected to the opposite end of the one-way valve 2 7, a one-way valve 5 fixedly connected to the inner wall of the front end of the right closed shell 3 and passing through both the inner and outer sides of the closed shell 3, a pressure gauge 21 installed on the front left side of the top of the left closed shell 3, and a vacuum pump 4 fixedly connected to the front right side of the top of the workbench 1.
[0025] A motor 11 is fixedly connected to the middle of the top of the bracket 23. The drive end of the motor 11 passes through the inside of the bracket 23 and is fixedly connected to the adapter rod 12. The front and rear sides of the top of the adapter rod 12 are rotatably connected to the connecting rod 13. The opposite sides of the top of the connecting rod 13 are rotatably connected to the slider 15. The upper side of the outer wall of the slider 15 is slidably connected to the inner walls of the left and right sides of the top of the bracket 23. The opposite sides of the bottom of the connecting rod 13 are rotatably connected to the connecting block 14. The bottom of the connecting block 14 is fixedly connected to the opposite side of the top of the closed shell 3.
[0026] To further explain, first, place the valve to be tested on the upper surface of the platform 19. Then, stretch the corrugated pipe 16 connected to one end of the two check valves 7 to precisely connect them to both ends of the valve. Next, open the internal channel of the valve to prepare for testing. Start the motor 11, and its drive end drives the adapter rod 12 to rotate counterclockwise. At the same time, the connecting rods 13 on both sides of the top of the adapter rod 12 also move. Under the sliding of the slider 15, the opening angle of the connecting rod 13 gradually shrinks, and the connecting blocks 14 on both sides move in opposite directions, thereby causing the closed shells 3 on both sides to close together. After assembly, start the air pump 4, and its input end generates negative pressure. The one-way valve 5 can only discharge gas from the closed shell 3 to the outside. The airflow direction of the one-way valve 7 is from right to left.
[0027] Example 2
[0028] Please see Figures 3-4Further, based on Embodiment 1, a sealing groove 22 is provided on the right end of the left closed shell 3, and a rubber pad 17 is fixedly connected to the left end of the right closed shell 3. The shape of the outer wall of the rubber pad 17 matches the shape of the inner wall of the sealing groove 22. A rubber pad 20 is fixedly connected to the outer wall of the shelf 19. A sealing groove 18 is provided at the bottom of the inner wall of the closed shell 3. The shapes of the left and right sides of the outer wall of the rubber pad 20 match the shapes of the inner wall of the sealing groove 18. A hose 6 is fixedly connected to the input end of the air pump 4. The other end of the hose 6 is fixedly connected to the front end of the one-way valve 5. A hose 28 is fixedly connected to the output end of the air pump 4. The other end of the hose 28 is fixedly connected to the right end of the one-way valve 27 on the right side. A through groove 9 is provided on the lower side of the left end of the hose 28. Several curtains 10 are fixedly connected to the top of the inner wall of the through groove 9.
[0029] To further explain, when the sealed shell 3 is assembled, the rubber gasket 17 is tightly inserted into the sealing groove 22, and the sealing grooves 18 on both sides are also firmly inserted into the outer wall of the rubber gasket 20, successfully completing the sealing assembly between the sealed shells 3. Through the combination of the hose 6, the one-way valve 5 and the air pump 4, the air inside the sealed shell 3 is extracted. The extracted air is discharged from the output end of the air pump 4 along the hose 8 and the one-way valve 7 into the valve. As the air inside the sealed shell 3 decreases, the space pressure decreases, forming a pressure difference with the normal air pressure inside the valve, thereby enabling the valve's pressure resistance to be tested. The pressure gauge 21 installed on the top of the left sealed shell 3 can be used to obtain the pressure of the space inside the sealed shell 3.
[0030] If there is no blockage inside the valve, the gas discharged into the valve will be discharged outward from the corrugated pipe 16 on the left and the one-way valve 7, blowing towards the through groove 9, causing the curtain 10 to flutter, visually displaying the gas discharge situation and verifying that the valve's flow is normal. To verify the valve's sealing performance, simply close the inside of the valve before closing the sealing shell 3, and then test it in the above manner. If the curtain 10 does not sway, it indicates that the valve has good sealing performance; if the curtain 10 sways, it indicates that there is a problem with the sealing performance.
[0031] Working principle: First, place the valve to be tested on the upper surface of the platform 19. Then, stretch the corrugated pipe 16 connected to one end of the two one-way valves 7, so that one end of it connects to both ends of the valve. Then, open the internal passage of the valve. Next, start the motor 11, so that its drive end drives the adapter rod 12 to rotate counterclockwise. At the same time, it drives the connecting rods 13 on both sides of its top to move. Under the connection of the slider 15, it moves the connecting blocks 14 on both sides in opposite directions, causing the two sealing shells 3 to close together. At the same time, the rubber pad 17 is inserted into the sealing groove 22, and the two sealing grooves 18 are inserted into the outer wall of the rubber pad 20, thus completing the sealing assembly between the sealing shells 3. Then, start the air pump 4 to generate negative pressure at its input end. Then, through the combination of hose 6 and one-way valve 5, the air in the assembled sealing shell 3 is sucked out. The air is discharged from the output end of the vacuum pump 4, along the hose 2 8 and the one-way valve 2 7 into the valve. As the air inside the sealed shell 3 decreases, the pressure inside the space decreases. Combined with the normal air pressure inside the valve, a pressure difference is formed inside and outside the valve. This allows the valve's pressure resistance to be tested. The pressure gauge 21 installed on the top of the sealed shell 3 on the left side can be used to obtain the pressure inside the sealed shell 3. If there is no blockage inside the valve, the gas discharged into the valve will be discharged outward from the corrugated pipe 16 on the left side and the one-way valve 2 7, and blown towards the through groove 9, causing the curtain 10 to flutter. This allows for a more direct observation of the gas discharge and verification of the normal flow of the valve. To verify the valve's sealing performance, simply close the valve inside before closing the sealed shell 3 and test it in the above manner. If the curtain 10 does not sway at all, the sealing performance is good; if it sways, the opposite is true.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. Multifunctional valve testing bench, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a slide groove (2). The top of the workbench (1) is fixedly connected to the left and right sides of the slide groove (2). The left and right sides of the inner wall of the slide groove (2) are slidably connected to a closed shell (3). The middle of the bottom of the inner wall of the slide groove (2) is fixedly connected to a platform (19). The shape of the left and right sides of the outer wall of the platform (19) matches the shape of the bottom of the inner wall of the closed shell (3). The inner wall of the opposite end of the closed shell (3) is fixedly connected to a one-way valve (7) and passes through the inner and outer sides of the closed shell (3). The opposite end of the one-way valve (7) is fixedly connected to a corrugated pipe (16). The inner wall of the front end of the closed shell (3) on the right side is fixedly connected to a one-way valve (5) and passes through the inner and outer sides of the closed shell (3). The left side of the top of the closed shell (3) on the left side is equipped with a pressure gauge (21). The right side of the top of the workbench (1) is fixedly connected to a vacuum pump (4).
2. The multifunctional valve test bench according to claim 1, characterized in that: The input end of the air pump (4) is fixedly connected to a hose 1 (6), the other end of the hose 1 (6) is fixedly connected to the front end of the one-way valve 1 (5), the output end of the air pump (4) is fixedly connected to a hose 2 (8), and the other end of the hose 2 (8) is fixedly connected to the right end of the one-way valve 2 (7) on the right side.
3. The multifunctional valve test bench according to claim 1, characterized in that: The right end of the closed shell (3) on the left side is provided with a sealing groove (22), and the left end of the closed shell (3) on the right side is fixedly connected with a rubber pad (17). The shape of the outer wall of the rubber pad (17) matches the shape of the inner wall of the sealing groove (22).
4. The multifunctional valve tester of claim 1, wherein: The outer wall of the shelf (19) is fixedly connected with a rubber pad (20), and the bottom of the inner wall of the closed shell (3) is provided with a sealing groove (18). The shape of the left and right sides of the outer wall of the rubber pad (20) matches the shape of the inner wall of the sealing groove (18).
5. The multifunctional valve tester of claim 2, wherein: A through groove (9) is provided on the lower left side of the second flexible tube (8), and several curtains (10) are fixedly connected to the top of the inner wall of the through groove (9).
6. The multifunctional valve tester of claim 1, wherein: A motor (11) is fixedly connected to the middle of the top of the bracket (23). The driving end of the motor (11) passes through the inside of the bracket (23) and is fixedly connected to an adapter rod (12).
7. The multifunctional valve testing station of claim 6, wherein: The adapter rod (12) is rotatably connected to the front and rear sides of the top end of the adapter rod (12). The opposite sides of the top end of the adapter rod (13) are rotatably connected to the slider (15). The upper side of the outer wall of the slider (15) is slidably connected to the inner walls of the left and right sides of the top end of the bracket (23).
8. The multifunctional valve testing station of claim 7, wherein: The bottom of each connecting rod (13) is rotatably connected to a connecting block (14) on the opposite side, and the bottom of each connecting block (14) is fixedly connected to the top of the closed shell (3) on the opposite side.