Pressure adjusting device of filter element built-in bypass valve test board

Abstract

The utility model relates to the field of bypass valve testing, in particular to a pressure adjusting device of a filter element built-in bypass valve test board. Comprising a box body, a storage cavity is formed in the box body, a movable clamping groove is formed in the inner wall of the bottom of the storage cavity, a first movable plate and a second movable plate are symmetrically arranged in the storage cavity, a gas storage box is installed at the bottom of the first movable plate, and a pressure release valve is arranged at the top of the gas storage box; an electric sliding table is embedded in the side wall, close to the movable clamping groove, of the first movable plate, a connecting block is in transmission connection with the output end of the electric sliding table, a baffle is installed at the other end of the connecting block, one side wall of the baffle is slidably attached to the inner wall of the gas storage box, and a sealing gasket is arranged on the baffle; a moving groove is formed in the end, close to the moving clamping groove, of the top of the gas storage box. The bypass valve testing device can meet the testing requirements of bypass valves of different specifications and requirements, and the practicability is improved while the flexibility is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bypass valve testing technology, and specifically relates to a pressure regulating device for a filter element built-in bypass valve test bench. Background Technology

[0002] A filter element built-in bypass valve is a device that allows liquid to continue flowing around the filter element when the filter element is clogged. It is usually installed next to the filter element in a hydraulic system to protect the normal operation of the hydraulic system.

[0003] A search revealed that in the prior art, Chinese Patent Publication No. CN216386192U, authorized on April 26, 2022, discloses an intake bypass valve performance tester, comprising a support, a bracket, a drive assembly, a sliding assembly, an intake assembly, and a baffle. The bracket is connected to one side of the support, the drive assembly is mounted on the bracket and threaded through the sliding assembly, the intake assembly is mounted on the sliding assembly, the baffle is mounted on one side of the support, and the clamping mechanism includes a second sliding plate, a first clamping plate, and a second clamping plate, with the drive assembly threaded through the second sliding plate. This embodiment can effectively improve the accuracy of bypass valve performance testing results.

[0004] However, the device still has the following drawbacks: the above embodiment does not have a pressure regulation effect. If pressure regulation cannot be performed, it will be unable to meet the testing requirements of bypass valves of different specifications and requirements, thereby reducing flexibility and practicality. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a pressure regulating device for a filter element built-in bypass valve test bench, comprising a housing with a storage cavity inside. A movable slot is formed on the bottom inner wall of the storage cavity. A first movable plate and a second movable plate are symmetrically arranged within the storage cavity. An air storage box is installed at the bottom of the first movable plate, and a pressure relief valve is provided at the top of the air storage box. An electric slide is embedded in the side wall of the first movable plate near the movable slot. A connecting block is driven to the output end of the electric slide. A baffle is installed at the other end of the connecting block. One side wall of the baffle slides against the inner wall of the air storage box, and a sealing gasket is provided on the baffle. A movable groove is formed at the top end of the air storage box near the movable slot.

[0006] Furthermore, a door is installed on one side wall of the box, a control panel is installed on one side wall of the door, a display screen is provided on the control panel, a storage plate is slidably attached to the bottom inner wall of the storage cavity, and a movable locking block is installed at the bottom of the storage plate, the movable locking block is movably engaged in the movable locking slot.

[0007] Furthermore, the top of the shelf is provided with several sets of storage slots at equal intervals, and a pull block is installed on the side wall of the shelf near the door. The end of the pull block away from the shelf slides against the side wall of the door.

[0008] Furthermore, a bidirectional screw is rotatably connected inside the storage cavity, a motor is provided at one end of the housing, the output end of the motor passes through the housing and is connected to the bidirectional screw, and a mounting block is provided inside the storage cavity, the mounting block being located below the bidirectional screw.

[0009] Furthermore, two sets of limiting rods are symmetrically installed at both ends of the mounting block. The ends of the two sets of limiting rods away from the mounting block are installed on the inner wall of the storage cavity. Two sets of electric push rods are symmetrically installed at the bottom of the mounting block. A pressure plate is provided directly below the mounting block. The output ends of the two sets of electric push rods are installed on the top of the pressure plate.

[0010] Furthermore, both the first and second movable plates are threaded onto a bidirectional screw. Each of the first movable plates has a set of first through holes. An air compressor is installed on the side wall of the first movable plate away from the movable slot. An air guide pipe is connected to the output end of the air compressor. The output end of the air guide pipe is connected to an air storage tank. A solenoid valve is installed on the air guide pipe.

[0011] Furthermore, a first pressure sensor is installed inside the air storage box, and several sets of air supply pipes are connected at equal intervals on the side wall of the air storage box near the movable card slot. Each set of air supply pipes is equipped with a set of connecting plates, and each set of connecting plates is equipped with a set of second pressure sensors.

[0012] Furthermore, a first fixing plate is provided at one end of the gas storage box near the movable slot, and a number of first slots are equally spaced at the end of the first fixing plate away from the gas storage box. A number of first cavities are equally spaced at the end of the first fixing plate near the gas storage box, and a first sealing ring is provided in the first slot.

[0013] Furthermore, a second through hole is provided on the second movable plate, and an installation box is installed at the bottom of the second movable plate. Several sets of air outlet cavities are equally spaced on the installation box. A second fixing plate is installed at one end of the installation box near the movable slot. Several sets of second slots are equally spaced on the side wall of the second fixing plate away from the installation box. Several sets of second cavities are equally spaced on the side wall of the second fixing plate near the installation box. A set of second sealing rings is provided in each set of second slots.

[0014] Furthermore, the ends of several sets of air delivery pipes away from the air storage tank are all installed on the side wall of the first fixed plate. The first slot is connected to the first cavity, the input end of the first cavity is connected to the output end of the air delivery pipe, and the second slot is connected to the second cavity.

[0015] The beneficial effects of this utility model are:

[0016] 1. The air pressure inside the air tank can be adjusted by the pressure relief valve to ensure that the internal pressure is maintained at the set pressure level. At the same time, the electric slide can push the baffle to move, thereby controlling the flow of high-pressure gas in the air tank to the bypass valve. By precisely controlling the position of the baffle, the amount of air input to the bypass valve can be adjusted, thereby achieving precise adjustment of the test pressure. The equipment can adapt to the testing needs of bypass valves of different specifications and requirements, improving both flexibility and practicality.

[0017] 2. The air compressor is started to compress the air and send it into the air storage tank through the air pipe. The air then passes through several sets of air supply pipes and enters the bypass valve through the first cavity and the first slot. The first air pressure sensor is used to detect the air pressure in the air storage tank, and the second air pressure sensor detects the air pressure in the air supply pipe. This allows for the detection of the bypass valve's performance, such as whether it is leaking, thus achieving a good detection effect. Several sets of bypass valves can be detected at the same time, improving work efficiency.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the pressure regulating device according to an embodiment of the present invention is shown;

[0021] Figure 2 A cross-sectional schematic diagram of the box body according to an embodiment of the present utility model is shown;

[0022] Figure 3 A cross-sectional schematic diagram of the air delivery pipe according to an embodiment of the present invention is shown;

[0023] Figure 4A cross-sectional schematic diagram of the mounting box according to an embodiment of the present invention is shown;

[0024] Figure 5 An enlarged view of part A according to an embodiment of the present invention is shown.

[0025] In the diagram: 1. Box body; 2. Box door; 3. Control panel; 4. Storage cavity; 5. Movable slot; 6. Storage plate; 7. Movable block; 8. Storage groove; 9. Pull block; 10. Bidirectional screw; 11. Motor; 12. Mounting block; 13. Limit rod; 14. Electric push rod; 15. Pressure plate; 16. First moving plate; 17. First through hole; 18. Air tank; 19. Air compressor; 20. Air guide pipe; 21. Solenoid valve; 22. Electric slide table; 23. Connecting block; 24. Baffle; 25. Sealing gasket; 26. Moving groove; 27. First air pressure sensor; 28. Air supply pipe; 29. ​​Connecting plate; 30. Second air pressure sensor; 31. First fixing plate; 32. First empty groove; 33. First cavity; 34. First sealing ring; 35. Second moving plate; 36. Second through hole; 37. Mounting box; 38. Air outlet cavity; 39. Second fixing plate; 40. Second empty groove; 41. Second cavity; 42. Second sealing ring; 43. Pressure relief valve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This utility model embodiment provides a pressure regulating device for a filter element built-in bypass valve test bench, including a housing 1, exemplarily, such as... Figure 1 and Figure 2 As shown, a door 2 is installed on one side wall of the box body 1, a control panel 3 is installed on one side wall of the door 2, and a display screen is provided on the control panel 3. A storage cavity 4 is opened inside the box body 1. A movable slot 5 is opened on the bottom inner wall of the storage cavity 4. A storage plate 6 is slidably attached to the bottom inner wall of the storage cavity 4. A movable block 7 is installed at the bottom of the storage plate 6. The movable block 7 is movably engaged in the movable slot 5. Several sets of storage slots 8 are opened at equal intervals on the top of the storage plate 6. A pull block 9 is installed on the side wall of the storage plate 6 near the door 2. The end of the pull block 9 away from the storage plate 6 is slidably attached to the side wall of the door 2.

[0028] A bidirectional screw 10 is rotatably connected inside the storage cavity 4. A motor 11 is installed at one end of the housing 1. The output end of the motor 11 passes through the housing 1 and is connected to the bidirectional screw 10. An installation block 12 is installed inside the storage cavity 4. The installation block 12 is located below the bidirectional screw 10. Two sets of limiting rods 13 are symmetrically installed at both ends of the installation block 12. The ends of the two sets of limiting rods 13 away from the installation block 12 are installed on the inner wall of the storage cavity 4. Two sets of electric push rods 14 are symmetrically installed at the bottom of the installation block 12. A pressure plate 15 is installed directly below the installation block 12. The output ends of the two sets of electric push rods 14 are installed on the top of the pressure plate 15.

[0029] For example, such as Figure 2 , Figure 3 and Figure 5 As shown, a first movable plate 16 and a second movable plate 35 are symmetrically arranged inside the storage cavity 4. Both the first movable plate 16 and the second movable plate 35 are threadedly connected to a bidirectional screw 10. Each of the first movable plates 16 has a set of first through holes 17. An air storage box 18 is installed at the bottom of the first movable plate 16, and a pressure relief valve 43 is installed at the top of the air storage box 18. An air compressor 19 is installed on the side wall of the first movable plate 16 away from the movable slot 5. An air guide pipe 20 is connected to the output end of the air compressor 19, and the output end of the air guide pipe 20 is connected to the air storage box 18. A solenoid valve 21 is installed on the air guide pipe 20. The first movable plate 16 is close to the movable slot 5. An electric slide table 22 is embedded in one side wall of the slot 5. A connecting block 23 is connected to the output end of the electric slide table 22. A baffle 24 is installed at the other end of the connecting block 23. One side wall of the baffle 24 slides against the inner wall of the gas storage box 18. A sealing gasket 25 is provided on the baffle 24. A moving slot 26 is opened at the top of the gas storage box 18 near the moving slot 5. A first air pressure sensor 27 is provided inside the gas storage box 18. Several sets of air supply pipes 28 are connected at equal intervals on the side wall of the gas storage box 18 near the moving slot 5. A set of connecting plates 29 is provided in each set of air supply pipes 28. A set of second air pressure sensors 30 is provided on each set of connecting plates 29.

[0030] A first fixing plate 31 is provided at one end of the gas storage box 18 near the movable slot 5. Several sets of air supply pipes 28 are installed on the side wall of the first fixing plate 31 at the ends away from the gas storage box 18. Several sets of first slots 32 are equally spaced at the end of the first fixing plate 31 away from the gas storage box 18. Several sets of first cavities 33 are equally spaced at the end of the first fixing plate 31 near the gas storage box 18. The first slots 32 and the first cavities 33 are connected. The input end of the first cavity 33 is connected to the output end of the air supply pipe 28. A first sealing ring 34 is provided in the first slot 32.

[0031] For example, such as Figure 2 and Figure 4 As shown, the second movable plate 35 has a second through hole 36 on its upper part, and an installation box 37 is installed at the bottom of the second movable plate 35. The installation box 37 has several sets of air outlet cavities 38 at equal intervals. The installation box 37 has a second fixing plate 39 installed at one end near the movable slot 5. The second fixing plate 39 has several sets of second slots 40 at equal intervals on the side wall away from the installation box 37. The second fixing plate 39 has several sets of second cavities 41 at equal intervals on the side wall near the installation box 37. The second slots 40 and the second cavities 41 are connected. Each set of second slots 40 is provided with a set of second sealing rings 42.

[0032] Working principle: Open the door 2, pull the pull block 9 to move the storage plate 6, and at the same time move the moving block 7 into the moving slot 5, place several sets of bypass valves to be tested into the storage slot 8, and push the pull block 9 to move the storage plate 6 back to its original position.

[0033] The electric push rod 14 is activated to lower the pressure plate 15, which initially fixes several sets of bypass valves. Then, the motor 11 is activated to move the bidirectional screw 10, which in turn moves the first moving plate 16 and the second moving plate 35. The first moving plate 16 and the second moving plate 35 are limited by two sets of limit rods 13. The first moving plate 16 moves the gas storage tank 18, which in turn moves the first fixed plate 31. The second moving plate 35 moves the mounting box 37, which in turn moves the second fixed plate 39. The two ends of the bypass valve are placed in the first empty groove 32 and the second empty groove 40, respectively, and are tightly fitted with the first sealing ring 34 and the second sealing ring 42, thus completing the fixation.

[0034] The air compressor 19 is started to compress air and send it into the air storage tank 18 through the air pipe 20. During this process, the solenoid valve 21 can be used to control the inflow of gas. After passing through several sets of air supply pipes 28, the air enters the bypass valve through the first cavity 33 and the first slot 32. The first air pressure sensor 27 is used to detect the air pressure in the air storage tank 18, and the second air pressure sensor 30 detects the air pressure in the air supply pipe 28. This allows for the detection of the bypass valve's performance, such as whether it is leaking, thus achieving a good detection effect. Several sets of bypass valves can be detected simultaneously.

[0035] The air pressure inside the air storage tank 18 can be adjusted by the pressure relief valve 43 to ensure that the air storage tank 18 is maintained at the set pressure level. A first air pressure sensor 27 is provided at the top of the air storage tank 18 near the movable slot 5 to monitor the air pressure inside the air storage tank 18 in real time.

[0036] When pressure needs to be applied to the built-in bypass valve of the filter element, the electric slide 22 pushes the baffle 24 to move, so that the high-pressure gas in the air storage tank 18 is delivered through the air delivery pipe 28. Each set of air delivery pipes 28 is equipped with a connecting plate 29, on which a second air pressure sensor 30 is installed to monitor the pressure at each air delivery point.

[0037] The first fixing plate 31 and the second fixing plate 39 are used to fix the positions of the air supply pipe 28 and the air outlet chamber 38, respectively, to ensure that the gas can accurately act on the filter element's built-in bypass valve. The first sealing ring 34 and the second sealing ring 42 are provided to prevent gas leakage.

[0038] When the electric slide 22 is activated, it moves the connecting block 23 and simultaneously raises and lowers the baffle 24, controlling the air entering the bypass valve and thus regulating the test pressure.

[0039] The air pressure data is displayed on the screen on control panel 3.

[0040] The air pressure inside the air storage tank 18 can be adjusted by the pressure relief valve 43 to ensure that the internal pressure is maintained at the set pressure level. At the same time, the electric slide table 22 can push the baffle 24 to move, thereby controlling the flow of high-pressure gas in the air storage tank 18 to the bypass valve. By precisely controlling the position of the baffle 24, the amount of air input to the bypass valve can be adjusted, thereby achieving precise adjustment of the test pressure. The equipment can adapt to the testing needs of bypass valves of different specifications and requirements, improving both flexibility and practicality.

[0041] The air compressor 19 is started to compress air and send it into the air storage tank 18 through the air pipe 20. The air then passes through several sets of air supply pipes 28 and enters the bypass valve through the first cavity 33 and the first slot 32. The first air pressure sensor 27 is used to detect the air pressure in the air storage tank 18, and the second air pressure sensor 30 detects the air pressure in the air supply pipe 28. This allows for the detection of the bypass valve's performance, such as whether it is leaking, thus achieving a good detection effect. Several sets of bypass valves can be detected at the same time, improving work efficiency.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pressure regulating device for a filter element built-in bypass valve test bench, comprising a housing (1), characterized in that: The housing (1) has a storage cavity (4) inside. The bottom inner wall of the storage cavity (4) has a movable slot (5). The storage cavity (4) is symmetrically arranged with a first movable plate (16) and a second movable plate (35). The bottom of the first movable plate (16) is equipped with an air storage box (18). The top of the air storage box (18) is equipped with a pressure relief valve (43). An electric slide (22) is embedded in the side wall of the first movable plate (16) near the movable slot (5). A connecting block (23) is connected to the output end of the electric slide (22). A baffle (24) is installed at the other end of the connecting block (23). The side wall of the baffle (24) slides against the inner wall of the air storage box (18). A sealing gasket (25) is provided on the baffle (24). A movable slot (26) is opened at the top of the air storage box (18) near the movable slot (5).

2. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 1, characterized in that: A door (2) is installed on one side wall of the box (1), and a control panel (3) is installed on one side wall of the door (2). A display screen is provided on the control panel (3). A storage plate (6) is slidably attached to the bottom inner wall of the storage cavity (4). A movable card block (7) is installed at the bottom of the storage plate (6). The movable card block (7) is movably engaged in the movable card slot (5).

3. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 2, characterized in that: The top of the shelf (6) is provided with several sets of storage slots (8) at equal intervals. A pull block (9) is installed on the side wall of the shelf (6) near the door (2). The end of the pull block (9) away from the shelf (6) slides against the side wall of the door (2).

4. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 2, characterized in that: A bidirectional screw (10) is rotatably connected inside the storage cavity (4). A motor (11) is provided at one end of the housing (1). The output end of the motor (11) passes through the housing (1) and is connected to the bidirectional screw (10) for transmission. An installation block (12) is provided inside the storage cavity (4). The installation block (12) is located below the bidirectional screw (10).

5. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 4, characterized in that: Two sets of limiting rods (13) are symmetrically installed at both ends of the mounting block (12). The ends of the two sets of limiting rods (13) away from the mounting block (12) are installed on the inner wall of the storage cavity (4). Two sets of electric push rods (14) are symmetrically installed at the bottom of the mounting block (12). A pressure plate (15) is provided directly below the mounting block (12). The output ends of the two sets of electric push rods (14) are installed on the top of the pressure plate (15).

6. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 1, characterized in that: The first movable plate (16) and the second movable plate (35) are both threaded onto the bidirectional screw (10). The first movable plate (16) is provided with a set of first through holes (17). An air compressor (19) is installed on the side wall of the first movable plate (16) away from the movable slot (5). An air guide pipe (20) is connected to the output end of the air compressor (19). The output end of the air guide pipe (20) is connected to the air storage box (18). A solenoid valve (21) is provided on the air guide pipe (20).

7. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 1, characterized in that: The gas storage box (18) is equipped with a first pressure sensor (27). Several sets of air supply pipes (28) are connected at equal intervals on the side wall of the gas storage box (18) near the movable slot (5). Each set of air supply pipes (28) is equipped with a set of connecting plates (29), and each set of connecting plates (29) is equipped with a set of second pressure sensors (30).

8. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 7, characterized in that: The gas storage box (18) is provided with a first fixing plate (31) at one end near the movable slot (5). The first fixing plate (31) is provided with a number of first empty slots (32) at equal intervals at one end away from the gas storage box (18). The first fixing plate (31) is provided with a number of first cavities (33) at equal intervals at one end near the gas storage box (18). A first sealing ring (34) is provided in the first empty slot (32).

9. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 8, characterized in that: The second movable plate (35) has a second through hole (36) on its upper part. The bottom of the second movable plate (35) is equipped with an installation box (37). The installation box (37) has several sets of air outlet chambers (38) at equal intervals. The end of the installation box (37) near the movable slot (5) is equipped with a second fixing plate (39). The side wall of the second fixing plate (39) away from the installation box (37) has several sets of second slots (40) at equal intervals. The side wall of the second fixing plate (39) near the installation box (37) has several sets of second cavities (41) at equal intervals. Each set of second slots (40) is equipped with a set of second sealing rings (42).

10. The pressure regulating device for the filter element built-in bypass valve test bench according to claim 9, characterized in that: The ends of several sets of air supply pipes (28) away from the air storage tank (18) are all installed on the side wall of the first fixed plate (31). The first slot (32) is connected to the first cavity (33). The input end of the first cavity (33) is connected to the output end of the air supply pipe (28). The second slot (40) is connected to the second cavity (41).

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