Hydraulic valve test fixture

Abstract

The utility model relates to the technical field of hydraulic valve testing, and provides a hydraulic valve testing jig which comprises a jig base and a valve body jig, an installation groove is formed in the top end of the jig base, a threaded groove is formed in the position, close to the top end, of the inner side wall of the installation groove, and the valve body jig is located in the installation groove. A threaded part is fixedly connected to the position, close to the top end, of the outer wall of the valve body jig, the threaded part is in threaded connection with the threaded groove, a valve port is formed in the valve body jig, a first oil guide hole is formed in the inner side wall of the mounting groove, an oil inlet and an oil outlet are formed in the bottom end of the jig base, and the oil inlet and the oil outlet communicate with the mounting groove and the first oil guide hole correspondingly; a plurality of second oil guide holes which are uniformly distributed are formed in the inner side wall of the valve port, and one end of each second oil guide hole communicates with the corresponding first oil guide hole, so that the purpose of improving the replacement efficiency of the valve body jig is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valve testing, and in particular to a hydraulic valve testing jig. Background Art

[0002] Hydraulic valve testing generally requires a special test bench. Depending on the performance requirements of each valve, different test conditions are required, and fixtures with different valve ports are required to connect the hydraulic valve to the test bench. To make the entire control system compact and save operating space, the valve blocks used in the entire control system are square. This can be troublesome when testing replacement products.

[0003] After searching, China disclosed a hydraulic valve test jig with patent publication number CN216589406U on May 24, 2022. It is roughly described as including a jig base and a valve body jig. A jig mounting groove is provided in the jig base. The valve body jig can be removably installed in the jig mounting groove. A first oil guide hole is provided in the groove wall of the jig mounting groove. An oil outlet and an oil inlet are provided at the bottom of the valve body jig. The oil outlet is connected to the first oil guide hole, and the oil inlet passes through the bottom of the jig mounting groove.

[0004] Although the above-mentioned existing technical solution can replace different valve body fixtures as needed, thereby connecting hydraulic valves with different valve ports to the test bench with the testing machine, which is convenient for product testing of different hydraulic valves, the device needs to repeatedly remove the screws when replacing the valve body fixture, which not only makes the screws easy to lose, but also makes the replacement efficiency of the valve body fixture low. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a hydraulic valve test fixture to solve the problem of low efficiency in replacing valve body fixtures raised in the background art.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydraulic valve testing jig, comprising a jig base and a valve body jig, a mounting groove being provided at the top of the jig base, a threaded groove being provided on the inner side wall of the mounting groove near the top, the valve body jig being located inside the mounting groove, a threaded part being fixedly connected to the outer wall of the valve body jig near the top, the threaded part being threadedly connected to the threaded groove, a valve port being provided on the valve body jig, a first oil guide hole being provided on the inner side wall of the mounting groove, an oil inlet and an oil outlet being provided at the bottom end of the jig base, the oil inlet and the oil outlet being respectively connected to the mounting groove and the first oil guide hole, a plurality of evenly distributed second oil guide holes being provided on the inner side wall of the valve port, one end of the second oil guide hole being connected to the first oil guide hole.

[0009] By adopting the above technical solution, the valve body jig is placed inside the mounting groove, and the threaded part is rotated so that the threaded part is threadedly connected to the threaded groove, thereby achieving the purpose of installing the valve body jig inside the mounting groove, and then the hydraulic valve to be viewed from the side is placed in the valve port. When the test starts, the test fluid flows to the valve to be tested through the oil inlet, and the test fluid is discharged from the valve to be tested through the second oil guide hole, the first oil guide hole, and the oil outlet, thereby achieving the purpose of testing the hydraulic valve. When it is necessary to test hydraulic valves of different specifications, the threaded part is rotated so that the threaded part is disengaged from the threaded groove, which can drive the valve body jig to be disengaged from the jig base, and then different valve body jigs can be installed in the mounting groove, which facilitates the replacement of different valve body jigs, thereby achieving the purpose of improving the replacement efficiency of the valve body jig.

[0010] Optionally, the top end of the threaded member is fixedly connected to a plurality of evenly distributed connecting rods, and the top ends of the plurality of connecting rods are fixedly connected to a gripping ring.

[0011] By adopting the above technical solution, the connecting rod and the gripping ring cooperate to facilitate personnel to rotate the threaded part, thereby achieving the purpose of improving the replacement efficiency of the valve body fixture.

[0012] Optionally, an anti-slip pad is provided on the grip ring.

[0013] By adopting the above technical solution, the anti-slip pad is used to increase the friction between the human hand and the gripping ring, thereby making it easier for the person to grip the gripping ring, thereby achieving the purpose of saving effort.

[0014] Optionally, two annular grooves are provided on the outer wall of the valve body fixture, the lower end of the second oil guide hole is located between the two annular grooves, a sealing gasket is provided inside the annular groove, and the outer wall of the sealing gasket is in close contact with the inner wall of the mounting groove.

[0015] By adopting the above technical solution, the sealing gasket is used to improve the sealing between the valve body fixture and the installation groove, thereby facilitating pressurization of the equipment and facilitating testing of the hydraulic valve.

[0016] Optionally, a pressure relief hole is opened on the outer wall of the fixture base, one end of the pressure relief hole is connected to the oil inlet hole, a pressure relief pipe is fixedly connected to the inside of the pressure relief hole, and a valve is installed at one end of the pressure relief pipe passing through the pressure relief hole.

[0017] By adopting the above technical solution, the pressure relief pipe is used to facilitate pressure relief of the equipment after the test, and the valve is used to control the opening and closing of the pressure relief pipe, thereby facilitating the control of pressure relief.

[0018] (3) Beneficial effects

[0019] In summary, the present invention has at least one of the following beneficial technical effects:

[0020] The hydraulic valve test jig places the valve body jig inside the mounting groove, rotates the threaded part so that the threaded part is threadedly connected to the thread groove, thereby achieving the purpose of installing the valve body jig inside the mounting groove, and then places the hydraulic valve to be viewed from the side in the valve port. When the test starts, the test fluid flows to the valve to be tested through the oil inlet, and the test fluid is discharged from the valve to be tested through the second oil guide hole, the first oil guide hole, and the oil outlet, thereby achieving the purpose of testing the hydraulic valve. When it is necessary to test hydraulic valves of different specifications, the threaded part is rotated so that the threaded part is disengaged from the thread groove, which can drive the valve body jig to be disengaged from the jig base. Then, different valve body jigs can be installed in the mounting groove, which makes it easy to replace different valve body jigs, thereby achieving the purpose of improving the replacement efficiency of the valve body jigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first side structural diagram of the present invention;

[0022] Figure 2 For this utility model Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0023] Figure 3 This is a schematic diagram of the first cross-sectional structure of the present utility model;

[0024] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] In the figure: 1. fixture base; 2. valve body fixture; 3. threaded part; 4. valve port; 5. first oil guide hole; 6. oil inlet; 7. oil outlet; 8. second oil guide hole; 9. connecting rod; 10. grip ring; 11. anti-slip pad; 12. sealing gasket; 13. pressure relief pipe; 14. valve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figure 1-Figure 4, a hydraulic valve test fixture, including a fixture base 1, including a valve body fixture 2, the top of the fixture base 1 is provided with a mounting groove, the inner side wall of the mounting groove is provided with a threaded groove near the top, the valve body fixture 2 is located inside the mounting groove, the outer wall of the valve body fixture 2 is fixedly connected with a threaded member 3 near the top, the threaded member 3 is threadedly connected to the threaded groove, a valve port 4 is provided on the valve body fixture 2, the inner side wall of the mounting groove is provided with a first oil guide hole 5, the bottom end of the fixture base 1 is provided with an oil inlet 6 and an oil outlet 7, the oil inlet 6 and the oil outlet 7 are respectively connected to the mounting groove and the first oil guide hole 5, a plurality of evenly distributed second oil guide holes 8 are provided on the inner side wall of the valve port 4, one end of the second oil guide hole 8 is connected to the first oil guide hole 5, the valve body fixture 2 is placed on the mounting groove Inside the groove, rotate the threaded part 3 so that the threaded part 3 is threadedly connected to the threaded groove, thereby achieving the purpose of installing the valve body jig 2 inside the mounting groove, and then place the hydraulic valve to be viewed from the side in the valve port 4. When the test starts, the test fluid flows to the valve to be tested through the oil inlet 6, and the test fluid is discharged from the valve to be tested through the second oil guide hole 8, the first oil guide hole 5, and the oil outlet 7, thereby achieving the purpose of testing the hydraulic valve. When it is necessary to test hydraulic valves of different specifications, rotate the threaded part 3 so that the threaded part 3 is disengaged from the threaded groove, which can drive the valve body jig 2 to be disengaged from the jig base 1, and then different valve body jigs 2 can be installed in the mounting groove, which facilitates the replacement of different valve body jigs 2, thereby achieving the purpose of improving the replacement efficiency of the valve body jig 2.

[0029] Reference Figure 1 and Figure 3 The top of the threaded part 3 is fixedly connected to a plurality of evenly distributed connecting rods 9, and the tops of the plurality of connecting rods 9 are fixedly connected to a gripping ring 10. The connecting rods 9 cooperate with the gripping ring 10 to facilitate personnel to rotate the threaded part 3, thereby achieving the purpose of improving the replacement efficiency of the valve body fixture 2.

[0030] Reference Figure 1 and Figure 3 The grip ring 10 is provided with an anti-slip pad 11, which is used to increase the friction between the human hand and the grip ring 10, so as to facilitate the person to hold the grip ring 10, thereby achieving the purpose of saving effort.

[0031] Reference Figure 3 and Figure 4 Two annular grooves are provided on the outer wall of the valve body fixture 2. The lower end of the second oil guide hole 8 is located between the two annular grooves. A sealing gasket 12 is provided inside the annular groove. The outer wall of the sealing gasket 12 is tightly against the inner wall of the mounting groove. The sealing gasket 12 is used to improve the sealing between the valve body fixture 2 and the mounting groove, thereby facilitating pressurization of the equipment and testing of the hydraulic valve.

[0032] Reference Figure 1-Figure 3A pressure relief hole is provided on the outer wall of the fixture base 1, one end of the pressure relief hole is connected to the oil inlet hole, a pressure relief pipe 13 is fixedly connected to the inside of the pressure relief hole, one end of the pressure relief pipe 13 passes through the pressure relief hole and a valve 14 is installed. The pressure relief pipe 13 is used to facilitate pressure relief of the equipment after the test, and the valve 14 is used to control the switch of the pressure relief pipe 13, so as to facilitate the control of pressure relief.

[0033] In summary, the working principle and working process of the hydraulic valve test fixture are as follows: when in use, first place the valve body fixture 2 inside the mounting groove, rotate the threaded part 3, so that the threaded part 3 is threadedly connected to the threaded groove, thereby achieving the purpose of installing the valve body fixture 2 inside the mounting groove, and then place the hydraulic valve to be viewed from the side in the valve port 4. When the test starts, the test fluid flows to the valve to be tested through the oil inlet 6, and the test fluid is discharged from the valve to be tested through the second oil guide hole 8, the first oil guide hole 5, and the oil outlet 7, thereby achieving the purpose of testing the hydraulic valve. When it is necessary to test hydraulic valves of different specifications, rotate the threaded part 3 so that the threaded part 3 is disengaged from the threaded groove, which can drive the valve body fixture 2 to be disengaged from the fixture base 1, and then different valve body fixtures 2 can be It is installed in the mounting groove to facilitate the replacement of different valve body fixtures 2, thereby achieving the purpose of improving the replacement efficiency of the valve body fixture 2. The connecting rod 9 cooperates with the gripping ring 10 to facilitate personnel to rotate the threaded part 3, thereby achieving the purpose of improving the replacement efficiency of the valve body fixture 2. The anti-slip pad 11 is used to increase the friction between the human hand and the gripping ring 10, thereby achieving the convenience of personnel to grip the gripping ring 10, thereby achieving the purpose of saving effort. The sealing gasket 12 is used to improve the sealing between the valve body fixture 2 and the mounting groove, thereby facilitating the pressurization of the equipment, thereby facilitating the testing of the hydraulic valve. The pressure relief pipe 13 is used to facilitate the pressure relief of the equipment after the test. The valve 14 is used to control the switch of the pressure relief pipe 13, thereby facilitating the control of pressure relief.

[0034] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A hydraulic valve test fixture, comprising a fixture base (1), characterized in that: The invention comprises a valve body jig (2), wherein a mounting groove is provided at the top of the jig base (1), a threaded groove is provided on the inner side wall of the mounting groove near the top, the valve body jig (2) is located inside the mounting groove, a threaded member (3) is fixedly connected to the outer wall of the valve body jig (2) near the top, the threaded member (3) is threadedly connected to the threaded groove, a valve port (4) is provided on the valve body jig (2), a first oil guide hole (5) is provided on the inner side wall of the mounting groove, an oil inlet (6) and an oil outlet (7) are provided at the bottom end of the jig base (1), the oil inlet (6) and the oil outlet (7) are respectively connected to the mounting groove and the first oil guide hole (5), a plurality of evenly distributed second oil guide holes (8) are provided on the inner side wall of the valve port (4), and one end of the second oil guide hole (8) is connected to the first oil guide hole (5).

2. A hydraulic valve test fixture according to claim 1, characterized in that: The top end of the threaded member (3) is fixedly connected to a plurality of evenly distributed connecting rods (9), and the top ends of the plurality of connecting rods (9) are fixedly connected to a gripping ring (10).

3. The hydraulic valve test fixture according to claim 2, characterized in that: An anti-slip pad (11) is provided on the grip ring (10).

4. The hydraulic valve test fixture according to claim 1, characterized in that: Two annular grooves are provided on the outer wall of the valve body fixture (2), the lower end of the second oil guide hole (8) is located between the two annular grooves, a sealing gasket (12) is provided inside the annular groove, and the outer wall of the sealing gasket (12) is in close contact with the inner wall of the installation groove.

5. The hydraulic valve test fixture according to claim 1, characterized in that: A pressure relief hole is provided on the outer wall of the fixture base (1), one end of the pressure relief hole is connected to the oil inlet hole, a pressure relief pipe (13) is fixedly connected to the inside of the pressure relief hole, and a valve (14) is installed at one end of the pressure relief pipe (13) passing through the pressure relief hole.

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