A synchronous valve group test tool

Abstract

The utility model discloses a kind of synchronous valve group test tool, it is related to valve group test technical field, comprising: test table, the test table rear side is fixedly connected with oil tank, the oil tank top is fixedly connected with two fixed expansion links, the fixed expansion link telescopic end is fixedly connected with piston plate, the piston plate both sides are slidably connected with oil tank inner side, the oil tank bottom is fixedly connected with multiple oil outlet pipes, the oil outlet pipe surface is rotatably connected with valve, the oil outlet pipe end away from oil tank is fixedly connected with oil guide hose, the oil guide hose one end is fixedly connected with connector, the test table top is fixedly connected with vacuum pump, the vacuum pump bottom is fixedly connected with suction pipe, the suction pipe bottom end is fixedly penetrated and extends to test table interior, the test table other side is fixedly connected with gas pipe, the gas pipe surface is rotatably connected with gas valve. The utility model passes through vacuum pump and enhances the pressure difference value inside and outside valve group, to test the sealing property of valve group.

Description

Technical Field

[0001] This utility model relates to the field of valve assembly testing technology, specifically a synchronous valve assembly testing fixture. Background Technology

[0002] The valve assembly is the main actuator, so it needs to have excellent quality. Each valve assembly must be tested on a test bench before leaving the factory, mainly to test the sealing performance of the valve assembly.

[0003] Existing technologies do not allow for convenient testing of valve assemblies during use, which affects efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a testing fixture for synchronous valve groups to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A testing fixture for a synchronous valve assembly includes a test bench. An oil tank is fixedly connected to the rear side of the test bench. Two fixed telescopic rods are fixedly connected to the top of the oil tank. A piston plate is fixedly connected to the telescopic end of each fixed telescopic rod. The piston plate is slidably connected to the inner side of the oil tank on both sides. Multiple oil outlet pipes are fixedly connected to the bottom of the oil tank. Valves are rotatably connected to the surface of each oil outlet pipe. An oil guide hose is fixedly connected to the end of each oil outlet pipe away from the oil tank. A connector is fixedly connected to one end of the oil guide hose. A vacuum pump is fixedly connected to the top of the test bench. An air suction pipe is fixedly connected to the bottom of the vacuum pump. The bottom end of the air suction pipe is fixedly inserted through and extends into the interior of the test bench. An air delivery pipe is fixedly connected to the other side of the test bench. An air delivery valve is rotatably connected to the surface of the air delivery pipe.

[0007] Preferably, an outlet pipe is fixedly connected to one side of the vacuum pump.

[0008] Preferably, an oil delivery hole is provided on one side of the oil tank, and a piston is provided on the surface of the oil tank, with the piston surface slidably connected to the inner side of the oil delivery hole.

[0009] Preferably, an electrical box is fixedly connected to one side of the test bench, and a controller is fixedly connected to the top of the electrical box.

[0010] Preferably, a viewing window is fixedly connected to the front side of the test bench, a handle is fixedly connected to the surface of the viewing window, and a support platform is fixedly connected to the inner side of the test bench.

[0011] Preferably, the controller is electrically connected to the electric telescopic rod and the vacuum pump.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In use, this invention involves activating the valve and the electric telescopic rod via the controller. The electric telescopic rod moves the piston plate downwards, pushing the oil in the tank through the oil outlet pipe to the connected valve assembly. Then, the controller activates the vacuum pump, which drives the suction pipe to absorb air from the test position on the test bench and discharges it through the exhaust pipe. This reduces the external air pressure of the brake valve assembly and effectively increases the pressure difference between the inside and outside of the valve assembly. This pressure difference is used to test the sealing performance of the valve assembly. The valve assembly is observed for leakage through the viewing window; any leaked oil will fall onto the oil-absorbing sponge. After the test, the air supply valve on the air supply pipe is opened to restore the internal air pressure of the test bench. Then, the controller activates the electric telescopic rod again, which moves the piston plate upwards, allowing the oil to flow back into the tank. Finally, the viewing window is opened, and the valve assembly is removed from the connector for testing other valve assemblies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the electric telescopic rod and the piston plate of this utility model;

[0017] Figure 4 This is a side sectional view of the test bench structure of this utility model.

[0018] In the diagram: 1. Test stand; 2. Viewing window; 3. Handle; 4. Electrical box; 5. Controller; 6. Oil tank; 7. Piston; 8. Electric telescopic rod; 9. Vacuum pump; 10. Suction pipe; 11. Exhaust pipe; 12. Gas supply pipe; 13. Gas supply valve; 14. Support platform; 15. Oil guide hose; 16. Connector; 17. Piston plate; 18. Oil outlet pipe; 19. Valve; 20. Oil supply hole. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4This utility model provides a technical solution: a synchronous valve group testing fixture, including a test bench 1, an oil tank 6 fixedly connected to the rear side of the test bench 1, two fixed telescopic rods fixedly connected to the top of the oil tank 6, piston plates 17 fixedly connected to the telescopic ends of the fixed telescopic rods, the piston plates 17 slidingly connected to the inner side of the oil tank 6 on both sides, multiple oil outlet pipes 18 fixedly connected to the bottom of the oil tank 6, valves 19 rotatably connected to the surface of the oil outlet pipes 18, an oil guide hose 15 fixedly connected to the end of the oil outlet pipes 18 away from the oil tank 6, a connector 16 fixedly connected to one end of the oil guide hose 15, a vacuum pump 9 fixedly connected to the top of the test bench 1, an air suction pipe 10 fixedly connected to the bottom of the vacuum pump 9, the bottom end of the air suction pipe 10 fixedly penetrating and extending into the interior of the test bench 1, an air supply pipe 12 fixedly connected to the other side of the test bench 1, an air supply valve 13 rotatably connected to the surface of the air supply pipe 12, an air outlet pipe 11 fixedly connected to one side of the vacuum pump 9, and the valve group to be tested is connected to the connector 16 (this connection method is prior art and does not require...). (To reiterate, the connection is detachable, not fixed.) After connection, valve 19 and electric telescopic rod 8 are activated. Electric telescopic rod 8 moves piston plate 17 downward, pushing oil in oil tank 6 through oil outlet pipe 18 to the connected valve group. Then, vacuum pump 9 is activated, driving suction pipe 10 to absorb air in the test position of test bench 1 and discharge it through air outlet pipe 11, thereby reducing the air pressure value outside the brake valve group and effectively increasing the pressure difference between the inside and outside of the valve group. This pressure difference is used to test the sealing performance of the valve group. After the test, air supply valve 13 on air supply pipe 12 is opened to restore the air pressure value inside test bench 1. Then, electric telescopic rod 8 is activated by controller 5, moving piston plate 17 upward, so that oil flows back into oil tank 6. At this time, valve 19 is closed, and the valve group is removed from connector 16 for testing other valve groups.

[0021] like Figure 1 and Figure 2 As shown, an oil delivery hole 20 is provided on one side of the oil tank 6, and a piston 7 is provided on the surface of the oil tank 6. The surface of the piston 7 is slidably connected to the inside of the oil delivery hole 20. The piston 7 can seal the oil delivery hole 20 to prevent oil from spilling out, and the oil is delivered to the oil tank 6 through the oil delivery hole 20.

[0022] like Figure 1 and Figure 2As shown, an electrical box 4 is fixedly connected to one side of the test bench 1, and a controller 5 is fixedly connected to the top of the electrical box 4. A viewing window 2 is fixedly connected to the front of the test bench 1, and a handle 3 is fixedly connected to the surface of the viewing window 2. A support platform 14 is fixedly connected to the inside of the test bench 1. Before use, an oil-absorbing sponge is placed on the surface of the support platform 14, and then the valve assembly is connected to the connector 16 and placed on the sponge of the support platform 14. This can prevent some valve assemblies from having poor sealing and leaking oil directly through the sponge. The valve assembly can be observed for any leakage through the viewing window 2.

[0023] like Figure 1 and Figure 2 As shown, the controller 5 is electrically connected to the electric telescopic rod 8 and the vacuum pump 9. The controller 5 is used to control the opening and closing of the electric telescopic rod 8 and the vacuum pump 9.

[0024] Working principle: When in use, open the viewing window 2 by using handle 3, then connect the valve assembly to be tested to connector 16. After the connection is completed, place the valve assembly on the sponge of the support platform 14, and then close the viewing window 2.

[0025] Then, valve 19 is activated and the electric telescopic rod 8 is activated via controller 5. The electric telescopic rod 8 moves the piston plate 17 downward, thereby pushing the oil in the oil tank 6 through the oil outlet pipe 18 to the connected valve assembly. Then, the vacuum pump 9 is activated via controller 5. The vacuum pump 9 drives the suction pipe 10 to absorb the air in the test position of the test bench 1, and then discharges it through the air outlet pipe 11, thereby reducing the air pressure value outside the brake valve assembly and effectively increasing the pressure difference between the inside and outside of the valve assembly. This pressure difference is used to seal the valve assembly. For the sealing performance test, observe whether there is any leakage in the valve assembly through the viewing window 2. The leaked oil will fall onto the oil-absorbing sponge. After the test is completed, open the air supply valve 13 on the air supply pipe 12 to restore the air pressure value inside the test bench 1. Then, start the electric telescopic rod 8 through the controller 5. The electric telescopic rod 8 will drive the piston plate 17 to move upward, so that the oil will flow back into the oil tank 6. At this time, close the valve 19, open the viewing window 2, remove the valve assembly from the connector 16, and conduct tests on other valve assemblies.

[0026] After all tests are completed, remove the sponge from the surface of the support platform 14 and replace it with a new one;

[0027] The above operations make it easy to perform a sealing test on the valve assembly.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, fabric, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, fabric, or apparatus.

[0029] 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. A testing fixture for a synchronous valve assembly, comprising a test bench (1), characterized in that: An oil tank (6) is fixedly connected to the rear side of the test bench (1). Two fixed telescopic rods are fixedly connected to the top of the oil tank (6). A piston plate (17) is fixedly connected to the telescopic end of the fixed telescopic rod. The piston plate (17) is slidably connected to the inside of the oil tank (6) on both sides. Multiple oil outlet pipes (18) are fixedly connected to the bottom of the oil tank (6). A valve (19) is rotatably connected to the surface of the oil outlet pipe (18). An oil guide hose (15) is fixedly connected to the end of the oil outlet pipe (18) away from the oil tank (6). A connector (16) is fixedly connected to one end of the oil guide hose (15). A vacuum pump (9) is fixedly connected to the top of the test bench (1). An air suction pipe (10) is fixedly connected to the bottom of the vacuum pump (9). The bottom end of the air suction pipe (10) is fixedly penetrated and extended into the interior of the test bench (1). An air supply pipe (12) is fixedly connected to the other side of the test bench (1). An air supply valve (13) is rotatably connected to the surface of the air supply pipe (12).

2. The synchronous valve assembly test fixture according to claim 1, characterized in that: An outlet pipe (11) is fixedly connected to one side of the vacuum pump (9).

3. The synchronous valve assembly test fixture according to claim 1, characterized in that: The oil tank (6) has an oil delivery hole (20) on one side, and a piston (7) is provided on the surface of the oil tank (6). The surface of the piston (7) is slidably connected to the inside of the oil delivery hole (20).

4. The synchronous valve assembly test fixture according to claim 1, characterized in that: An electrical box (4) is fixedly connected to one side of the test bench (1), and a controller (5) is fixedly connected to the top of the electrical box (4).

5. The synchronous valve assembly test fixture according to claim 1, characterized in that: A viewing window (2) is fixedly connected to the front side of the test bench (1), a handle (3) is fixedly connected to the surface of the viewing window (2), and a support platform (14) is fixedly connected to the inside of the test bench (1).

6. The synchronous valve assembly test fixture according to claim 4, characterized in that: The controller (5) is electrically connected to the electric telescopic rod (8) and the vacuum pump (9).

Images