Detection equipment for hydraulic unloading valve machining

Abstract

The invention relates to the technical field of unloading valve detection, and discloses detection equipment for hydraulic unloading valve processing, which comprises a bottom plate, a [-shaped detection seat is fixed on the bottom plate, a plurality of sealing gaskets which are distributed at equal intervals are fixed on the [-shaped detection seat, a plurality of test valve bodies are arranged on the [-shaped detection seat, and the test valve bodies are fixed on the bottom plate. The testing valve body is provided with a liquid inlet, the lower end of the testing valve body abuts against the surface of the sealing gasket, the liquid inlet is inserted in the [-shaped detection seat, one side of the testing valve body is provided with a liquid outlet, and one side of the liquid outlet is provided with a plug; the purpose that the warping plate deflects to abut against the observation indicating rod can be achieved, the observation indicating rod can move upwards, unqualified test valve bodies are indicated, water closing treatment is not needed in the testing process, sealing testing can be conducted on the multiple test valve bodies at the same time, time and labor are saved, convenience and rapidness are achieved, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of unloading valve detection, in particular to a detection device for processing a hydraulic unloading valve. Background Art

[0002] The main function of the hydraulic unloading valve is to protect the system and equipment from overpressure damage. It prevents system overpressure by releasing pressure when the system pressure exceeds the set safety value, thereby avoiding equipment damage or personal injury accidents. The working principle of the hydraulic unloading valve is based on its design, which can start working when the liquid pressure in the hydraulic system exceeds the set safety pressure value. Inside the unloading valve, there is a regulating valve core or valve disc. When the system pressure exceeds the set value, the valve core will pop up or the valve disc will open, allowing the liquid to flow out through the valve port. In this way, the unloading valve guides the liquid to the low-pressure circuit or liquid storage chamber of the system, thereby reducing the system pressure. This is achieved through the open valve port, and the liquid can flow out smoothly to achieve the purpose of reducing the system pressure. The unloading valve needs to be tested for sealing during production to confirm that the valve will not leak liquid under normal working conditions.

[0003] At present, in the process of sealing detection of the unloading valve, a gas inflation detection method is adopted. The inflation device is connected to the liquid inlet of the unloading valve, and then the liquid outlet is blocked. Then, the unloading valve is placed in water to observe whether bubbles are generated, so as to judge the sealing performance of the unloading valve. The whole sealing detection process of the unloading valve needs to be manually connected to the inflation device and the plug to the liquid inlet and liquid outlet of the unloading valve. When multiple unloading valves are detected, it is easy to distinguish which unloading valve the bubbles come from, so only a single unloading valve can be tested for sealing, which is time-consuming and labor-intensive, and the detection takes a long time. After the detection is completed, the moisture attached to the unloading valve needs to be cleaned, which greatly reduces the detection efficiency of the unloading valve. Summary of the invention

[0004] The present invention provides a testing device for processing hydraulic unloading valves, which has the advantages that no water-sealing treatment is required during the test process, and multiple test valve bodies can be tested for sealing at the same time, which saves time, labor, is convenient and quick, and has the beneficial effect of greatly improving the efficiency of the test. It solves the problem that the sealing test of the unloading valve mentioned in the above background technology requires manual work. The inflation device and the plug are connected to the liquid inlet and the liquid outlet of the unloading valve. When multiple unloading valves are tested, it is easy to distinguish which unloading valve the bubbles come from, so only a single unloading valve can be tested for sealing, which is time-consuming and labor-intensive, and the test takes a long time. After the test is completed, the moisture attached to the unloading valve needs to be cleaned, which greatly reduces the test efficiency of the unloading valve.

[0005] The present invention provides the following technical solution: A detection device for machining a hydraulic unloading valve, including a bottom plate, on which a U-shaped detection seat is fixed. A number of equally spaced sealing gaskets are fixed on the U-shaped detection seat. A number of test valve bodies are arranged on the U-shaped detection seat, and a liquid inlet is provided on the test valve body. The lower end of the test valve body abuts against the surface of the sealing gasket, the liquid inlet is inserted into the U-shaped detection seat, a liquid outlet is arranged on one side of the test valve body, and a plug is arranged on one side of the liquid outlet.

[0006] An inflation component is arranged on the U-shaped detection seat, a number of sealing covers are arranged above the U-shaped detection seat, a lifting component is arranged on one side of the bottom plate, and an observation indicating rod is slidably connected to each of the sealing covers. The observation indicating rod is elastically connected to the sealing cover through a first spring.

[0007] As an optional scheme of the detection device for machining a hydraulic unloading valve of the present invention, wherein: The lifting component includes a first servo electric cylinder fixed on the U-shaped detection seat. A number of mounting brackets are fixed on the sealing covers. The telescopic end of the first servo electric cylinder is fixedly connected to the mounting bracket. An installation earpiece is fixed on one side of the mounting bracket, a guide rod is installed on the installation earpiece, and a guide hole is formed on the U-shaped detection seat. The guide rod is slidably connected in the guide hole.

[0008] As an optional scheme of the detection device for machining a hydraulic unloading valve of the present invention, wherein: The inflation component includes a second servo electric cylinder fixed on the U-shaped detection seat, and a connecting piece is fixed on the telescopic end of the second servo electric cylinder. An air vent seat is fixed on the connecting piece, a number of equally spaced air vent sockets are fixed on the air vent seat, the air vent sockets are adapted to the liquid inlets, and an inflation pipe is connected to one end of the air vent seat.

[0009] As an optional scheme of the detection device for machining a hydraulic unloading valve of the present invention, wherein: A sliding piece is arranged inside the sealing cover. The sliding piece is elastically connected to the sealing cover through a second spring, and a抵触杆 (it seems there is a typo here, assuming it should be a specific name) is fixed on the sliding piece.

[0010] As an optional scheme of the detection device for machining a hydraulic unloading valve of the present invention, wherein: A sliding rod is fixed on the side wall of the sealing cover. One end of the sliding rod is slidably connected to a抵触块 (it seems there is a typo here, assuming it should be a specific name). The抵触块 (assuming the correct name) is elastically connected to the sealing cover through a third spring. A first抵触斜面 (it seems there is a typo here, assuming it should be a specific name) is arranged below the抵触块 (assuming the correct name), and the first抵触斜面 (assuming the correct name) abuts against the抵触杆 (assuming the correct name).

[0011] As an alternative solution for the detection device used in the processing of the hydraulic unloading valve of the present invention, wherein: a rotating rod is fixed on the sealing cover, a seesaw is sleeved on the rotating rod, the seesaw is elastically connected to the rotating rod through a torsion spring, one end of the seesaw abuts against the observation indicating rod, a second abutting inclined surface is arranged on one side of the abutting block, the second abutting inclined surface abuts against the other end of the seesaw, and an L-shaped abutting block is fixed on the sealing cover.

[0012] As an alternative solution for the detection device used in the processing of the hydraulic unloading valve of the present invention, wherein: a plurality of sliding brackets are fixed on the U-shaped detection seat, two sliding blocks are slidably connected to the sliding brackets, a rectangular block is fixed on the two sliding blocks, the sliding brackets are elastically connected to the sliding blocks through fourth springs, a chute is opened on the rectangular block, a abutting wedge block is slidably connected to the chute, a fixing piece is fixed on one side of the sliding block, the fixing piece is elastically connected to the abutting wedge block through a sixth spring, and the plug is fixed on the rectangular block.

[0013] As an alternative solution for the detection device used in the processing of the hydraulic unloading valve of the present invention, wherein: a round hole is opened on the rectangular block, a conical abutting head is arranged in the round hole, the conical abutting head is elastically connected to the rectangular block through a fifth spring, and the conical abutting head abuts against the abutting wedge block.

[0014] As an alternative solution for the detection device used in the processing of the hydraulic unloading valve of the present invention, wherein: guiding inclined grooves are opened on both sides of the test valve body, guiding wedge blocks are fixed on both sides of the rectangular block, and the guiding wedge blocks are adapted to the guiding inclined grooves.

[0015] As an alternative solution for the detection device used in the processing of the hydraulic unloading valve of the present invention, wherein: a piston cylinder is fixed on the plug and the rectangular block, a piston is slidably connected in the piston cylinder, a piston rod is fixed on the piston, the piston rod is elastically connected to the piston cylinder through a seventh spring, a abutting frame is fixed on one side of the abutting wedge block, an inflatable sealing ring is installed on the plug, a flow channel is arranged on the plug, one end of the piston cylinder is communicated with the flow channel, and the inflatable sealing ring is communicated with the other end of the flow channel.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the detection equipment for processing the hydraulic unloading valve, the U-shaped detection seat facilitates the insertion of the liquid inlet at the lower part of the valve body onto the U-shaped detection seat. Several test valve bodies can be placed on the U-shaped detection seat for testing. When the gasket fixed on the U-shaped detection seat fits with the test valve body, the gap between the liquid inlet and the U-shaped detection seat can be reduced, improving the sealing effect. The lifting component arranged on one side of the U-shaped detection seat can simultaneously adjust the vertical movement height of several sealing covers, facilitating the downward movement of the sealing covers to closely fit on the U-shaped detection seat when several test valve bodies are being tested, so that an independent enclosed space can be formed inside the sealing covers, isolating the external air during the test process and improving the test accuracy. The plug arranged on one side of the liquid outlet can block the liquid outlet. The inflation component arranged on the U-shaped detection seat can conduct ventilation tests on the liquid inlets of several test valve bodies simultaneously. The sliding piece elastically connected inside the sealing cover can detect the pressure change inside the sealing cover. When a test valve body fails during the ventilation test, there will be an air leakage phenomenon, resulting in a large pressure inside the sealing cover, prompting the sliding piece to move upward, achieving the purpose of the抵触杆 (assuming it's a specific component) to抵触 with the first抵触斜面 of the抵触块. The抵触块 can move horizontally to make the second抵触斜面抵触 with the rocker, achieving the purpose of the rocker deflecting and抵触 with the observation indicating rod, enabling the observation indicating rod to move upward to indicate the unqualified test valve body. During the test process, there is no need to perform water treatment for closing, and at the same time, the sealing tests of multiple test valve bodies can be carried out, saving time and effort, being convenient and fast, and greatly improving the test efficiency.

[0018] 2. In the detection equipment for processing the hydraulic unloading valve, several sliding brackets arranged on the U-shaped detection seat allow the two sliding blocks fixed below the rectangular block to move horizontally. The circular hole opened on the rectangular block facilitates the sliding connection of the conical抵触头 (assuming it's a specific component), enabling the conical抵触头 to抵触 with the抵触 wedge block slidably connected on the chute. When the sealing cover moves downward to seal the test valve body, it can drive the L-shaped抵触块 to move synchronously, prompting the L-shaped抵触块 to抵触 with the抵触 wedge block, achieving the horizontal movement of the rectangular block and driving the two guiding wedge blocks and the plug to move synchronously during the movement. When the two guiding wedge blocks are inserted into the guiding inclined grooves opened on both sides of the test valve body, first, the position of the liquid outlet of the test valve body can be摆正, enabling the liquid outlet to accurately align with the plug and be inserted. Second, the position of the test valve body can be restricted, preventing the test valve body from shifting during the plugging process and affecting the plugging effect between the liquid outlet and the plug.

[0019] It should be noted that some terms like "抵触杆" and "抵触块" seem to be specific components in Chinese that might need more context for accurate translation. Here, they are tentatively translated as such while keeping the original Chinese for reference. You may need to adjust them according to the actual situation.3. In the inspection equipment for processing hydraulic unloading valves, after the plug is inserted into the liquid outlet, the L-shaped resistance block continues to resist the resistance wedge, and at the same time the resistance force increases, so that when the resistance wedge resists the conical resistance head, the conical resistance head can retract into the round hole, so that the resistance wedge can slide horizontally in the slide groove, and the resistance wedge can drive the resistance frame to resist the piston rod, and push the piston rod to move horizontally in the piston cylinder, so that the piston transports the air inside the piston cylinder through the flow channel to the inflatable sealing ring fixed on the plug, so that it expands and improves the sealing effect of the liquid outlet, which can avoid leakage at the liquid outlet during the ventilation test and affect the sealing test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0021] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 3 It is a structural cross-sectional view of the present invention.

[0023] Figure 4 It is a schematic diagram of the internal structure of the sealing cover of the present invention.

[0024] Figure 5 It is a schematic diagram of the sliding block structure of the present invention.

[0025] Figure 6 for Figure 2 A partial enlarged schematic diagram in the middle.

[0026] Figure 7 for Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0027] In the figure: 1, bottom plate; 2, U-shaped detection seat; 201, first servo cylinder; 202, mounting bracket; 203, mounting lug; 204, guide rod; 205, guide hole; 3, gasket; 4, test valve body; 401, second servo cylinder; 402, connecting piece; 403, ventilation seat; 404, ventilation socket; 405, charging pipe; 41, liquid inlet; 42, liquid outlet; 43, plug; 5, sealing cover; 6, observation indicating rod; 7, first spring; 8, sliding piece; 9, second spring; 10,抵触 rod; 11, sliding rod; 12, contact block; 13, third spring; 14, first contact inclined surface; 15, rotating rod; 16, seesaw; 17, torsion spring; 18, second contact inclined surface; 19, sliding bracket; 20, sliding block; 21, rectangular block; 22, fourth spring; 23, chute; 24, contact wedge; 25, round hole; 26, conical contact head; 27, fifth spring; 28, fixing piece; 29, sixth spring; 30, guiding inclined groove; 31, guiding wedge; 32, piston cylinder; 33, piston; 34, piston rod; 35, seventh spring; 36, contact frame; 37, inflation sealing ring; 38, flow channel; 39, L-shaped contact block. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Example 1, please refer to Figure 1-Figure 7 , a detection device for processing a hydraulic unloading valve, including a bottom plate 1, a U-shaped detection seat 2 is fixed on the bottom plate 1, a plurality of gaskets 3 are fixed on the U-shaped detection seat 2 at equal intervals, a plurality of test valve bodies 4 are arranged on the U-shaped detection seat 2, and a liquid inlet 41 is arranged on the test valve body 4. The lower end of the test valve body 4 abuts against the surface of the gasket 3, the liquid inlet 41 is inserted into the U-shaped detection seat 2, a liquid outlet 42 is arranged on one side of the test valve body 4, and a plug 43 is arranged on one side of the liquid outlet 42;

[0030] An inflation assembly is arranged on the U-shaped detection seat 2, a plurality of sealing covers 5 are arranged above the U-shaped detection seat 2, a lifting assembly is arranged on one side of the bottom plate 1, an observation indicating rod 6 is slidably connected to each of the plurality of sealing covers 5, and the observation indicating rod 6 is elastically connected to the sealing cover 5 through a first spring 7.

[0031] The lifting component includes a first servo electric cylinder 201. The first servo electric cylinder 201 is fixed on the U-shaped detection base 2. Installation brackets 202 are fixed on several sealing covers 5. The telescopic end of the first servo electric cylinder 201 is fixedly connected to the installation bracket 202. An installation earpiece 203 is fixed on one side of the installation bracket 202. A guide rod 204 is installed on the installation earpiece 203. A guide hole 205 is formed on the U-shaped detection base 2. The guide rod 204 is slidably connected in the guide hole 205.

[0032] The inflation component includes a second servo electric cylinder 401. The second servo electric cylinder 401 is fixed on the U-shaped detection base 2. A connecting piece 402 is fixed on the telescopic end of the second servo electric cylinder 401. An air vent seat 403 is fixed on the connecting piece 402. Several equally spaced air vent sockets 404 are fixed on the air vent seat 403. The air vent sockets 404 are adapted to the liquid inlet 41. A charging pipe 405 is connected to one end of the air vent seat 403.

[0033] A sliding piece 8 is arranged inside the sealing cover 5. The sliding piece 8 is elastically connected to the sealing cover 5 through a second spring 9. A抵触杆 10 is fixed on the sliding piece 8.

[0034] A sliding rod 11 is fixed on the side wall of the sealing cover 5. One end of the sliding rod 11 is slidably connected to a抵触块 12. The抵触块 12 is elastically connected to the sealing cover 5 through a third spring 13. A first抵触斜面 14 is arranged below the抵触块 12. The first抵触斜面 14 abuts against the抵触杆 10.

[0035] A rotating rod 15 is fixed on the sealing cover 5. A rocker 16 is sleeved on the rotating rod 15. The rocker 16 is elastically connected to the rotating rod 15 through a torsion spring 17. One end of the rocker 16 abuts against the observation indicating rod 6. A second抵触斜面 18 is arranged on one side of the抵触块 12. The second抵触斜面 18 abuts against the other end of the rocker 16. An L-shaped抵触块 39 is fixed on the sealing cover 5.

[0036] During the test, refer to Figure 1-Figure 4 It should be noted that there are some Chinese characters in the original text that seem to be incorrect or incomplete. I have translated them as accurately as possible based on the context. You may need to check and correct the original text for a more precise translation., insert the liquid inlets 41 of several test valve bodies 4 into the U-shaped detection base 2. The sealing gasket 3 fixed on the U-shaped detection base 2 can reduce the gap between the liquid inlet 41 and the U-shaped detection base 2, improving the sealing effect. The first servo cylinder 201 in the lifting assembly drives several sealing covers 5 fixed on the mounting bracket 202 to move vertically synchronously. At the same time, the guide rods 204 fixed on the mounting lugs 203 are inserted into the guide holes 205 opened on the U-shaped detection base 2, which can improve the stability of the vertical movement of several sealing covers 5. When several test valve bodies 4 are being tested, it is convenient for the sealing covers 5 to move downward and closely fit on the U-shaped detection base 2, forming an independent sealed space inside the sealing covers 5 to isolate the outside air. At the same time, the plug 43 provided on one side of the liquid outlet 42 can block the liquid outlet 42. The second servo cylinder 401 in the air inflation assembly can drive several equally spaced air vent sockets 404 fixed on the air vent seat 403 to insert into several liquid inlets 41 through the connecting piece 402. Connect the air charging pipe 405 to an external air supply device, and inject gas into the test valve body 4 through the liquid inlet 41 for a sealing test. The pressure change inside the sealing cover 5 can be detected by the sliding piece 8 elastically connected inside the sealing cover 5;

[0037] Reference Figure 3 and Figure 4 , if the test valve body 4 is found to be unqualified during the air vent test, there will be an air leakage phenomenon, resulting in a large pressure inside the sealing cover 5, which causes the sliding piece 8 to move upward. The second spring 9 stores energy, causing the contact rod 10 fixed on the sliding piece 8 to contact the first contact inclined surface 14 provided below the contact block 12, causing the contact block 12 to move horizontally on the sliding rod 11. The third spring 13 stores energy. The second contact inclined surface 18 provided on the contact block 12 contacts one end of the rocker 16, causing the rocker 16 to deflect on the rotating rod 15. The torsion spring 17 stores energy. The other end of the rocker 16 contacts the observation indicating rod 6, enabling the observation indicating rod 6 to move vertically on the sealing cover 5. The first spring 7 stores energy to indicate the unqualified test valve body 4. The rocker 16 can increase the sliding amplitude of the observation indicating rod 6 on the sealing cover 5, making it convenient to clearly observe the position change of the observation indicating rod 6 during the test process, thereby determining whether the test valve body 4 is a qualified product. There is no need to perform water closing treatment during the test process, and at the same time, multiple test valve bodies 4 can be subjected to a sealing test, which is time-saving, labor-saving, convenient, and fast, greatly improving the test efficiency.

[0038] Embodiment 2, this embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figure 1-Figure 7, several sliding brackets 19 are fixed on the U-shaped detection base 2. Two sliding blocks 20 are slidably connected to the sliding brackets 19. A rectangular block 21 is fixed on the two sliding blocks 20. The sliding brackets 19 are elastically connected to the sliding blocks 20 through the fourth spring 22. A chute 23 is formed on the rectangular block 21. A contact wedge block 24 is slidably connected to the chute 23. A fixing piece 28 is fixed on one side of the sliding block 20. The fixing piece 28 is elastically connected to the contact wedge block 24 through the sixth spring 29. The plug 43 is fixed on the rectangular block 21.

[0039] A round hole 25 is formed in the rectangular block 21. A conical contact head 26 is arranged in the round hole 25. The conical contact head 26 is elastically connected to the rectangular block 21 through the fifth spring 27. The conical contact head 26 abuts against the contact wedge block 24.

[0040] Guide inclined slots 30 are formed on both sides of the test valve body 4. Guide wedge blocks 31 are fixed on both sides of the rectangular block 21. The guide wedge blocks 31 are adapted to the guide inclined slots 30.

[0041] In the prior art, during the test of the liquid outlet 42, a plug 43 needs to be manually blocked, and the blocking speed is slow. Refer to Figure 5-Figure 7 , the contact wedge block 24 slidably connected to the rectangular block 21 abuts against the conical contact head 26 in the round hole 25 in the initial state. When the sealing cover 5 moves downward to seal the test valve body 4, it can drive the L-shaped contact block 39 to move synchronously, prompting the L-shaped contact block 39 to abut against the contact wedge block 24. Due to the influence of the conical contact head 26 on the contact wedge block 24, the fixing piece 28 fixed below the rectangular block 21 moves horizontally on the sliding bracket 19, and at the same time, the fourth spring 22 stores energy, prompting the rectangular block 21 to automatically drive the plug 43 and the two guide wedge blocks 31 to move horizontally synchronously, gradually approaching the test valve body 4. When inserted into the guide inclined slots 30 formed on both sides of the test valve body 4, first, the position of the liquid outlet 42 of the test valve body 4 can be straightened, so that the quasi-plug 43 can accurately align with the liquid outlet 42 and automatically insert into it, improving the blocking effect between the liquid outlet 42 and the plug 43. Second, the position of the test valve body 4 can be restricted, avoiding the liquid inlet 41 of the test valve body 4 being pushed by the upward-moving ventilation socket 404 during the air supply process, affecting the sealing effect of the connection between the liquid inlet 41 and the ventilation socket 404.

[0042] Embodiment 3, this embodiment is an improvement made on the basis of Embodiment 2. Specifically, please refer to Figure 1-Figure 7, a plug 43 and a piston cylinder 32 are fixed on a rectangular block 21. A piston 33 is slidably connected in the piston cylinder 32. A piston rod 34 is fixed on the piston 33. The piston rod 34 is elastically connected to the piston cylinder 32 through a seventh spring 35. A contact frame 36 is fixed on one side of a contact wedge 24. An inflatable sealing ring 37 is installed on the plug 43. A flow channel 38 is arranged on the plug 43. One end of the piston cylinder 32 is communicated with the flow channel 38, and the other end of the inflatable sealing ring 37 is communicated with the flow channel 38.

[0043] After the plug 43 is inserted into the liquid outlet 42, the L-shaped contact block 39 continues to contact the contact wedge 24, and the contact force increases. Refer to Figure 7 , when the contact force received by the conical contact head 26 is relatively large, the conical contact head 26 retracts into the circular hole 25, and at the same time, the fifth spring 27 stores energy. The purpose of the horizontal sliding of the contact wedge 24 in the sliding groove 23 can be achieved. During the sliding process of the contact wedge 24, the fourth spring 22 stores energy. At the same time, the contact wedge 24 drives the contact frame 36 to automatically contact the piston rod 34, prompting the piston rod 34 to horizontally move in the piston cylinder 32, so that the piston 33 automatically conveys the air inside the piston cylinder 32 to the inflatable sealing ring 37 fixed on the plug 43 through the flow channel 38, causing it to expand and improve the sealing effect on the liquid outlet 42. At the same time, the seventh spring 35 stores energy. When the seventh spring 35 stops storing energy, the L-shaped contact block 39 always abuts against the contact wedge 24, prompting the plug 43 to be firmly inserted into the liquid outlet 42, which can avoid air leakage at the liquid outlet 42 during the ventilation test and affect the sealing test effect. At the same time, the sealing cover 5 is closely attached to the surface of the C-shaped detection seat 2 to complete the sealing process.

[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0045] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A testing device for processing a hydraulic unloading valve, comprising a base plate (1), characterized in that: A U-shaped detection seat (2) is fixed on the bottom plate (1). A number of sealing gaskets (3) are fixed on the U-shaped detection seat (2) and are equally spaced. A number of test valve bodies (4) are arranged on the U-shaped detection seat (2). A liquid inlet (41) is arranged on the test valve body (4). The lower end of the test valve body (4) abuts against the surface of the sealing gasket (3). The liquid inlet (41) is inserted into the U-shaped detection seat (2). A liquid outlet (42) is arranged on one side of the test valve body (4). A plug (43) is arranged on one side of the liquid outlet (42). An air inflation assembly is arranged on the U-shaped detection seat (2). A number of sealing covers (5) are arranged above the U-shaped detection seat (2). A lifting assembly is arranged on one side of the bottom plate (1). Observation indicating rods (6) are slidably connected to a number of the sealing covers (5). The observation indicating rods (6) are elastically connected to the sealing covers (5) through first springs (7).

2. The hydraulic unloading valve processing detection equipment according to claim 1 is characterized in that: The lifting assembly includes a first servo electric cylinder (201). The first servo electric cylinder (201) is fixed on the U-shaped detection seat (2). Mounting brackets (202) are fixed on a number of the sealing covers (5). The telescopic end of the first servo electric cylinder (201) is fixedly connected to the mounting bracket (202). An installation earpiece (203) is fixed on one side of the mounting bracket (202). A guide rod (204) is installed on the installation earpiece (203). A guide hole (205) is formed on the U-shaped detection seat (2). The guide rod (204) is slidably connected in the guide hole (205).

3. The hydraulic unloading valve processing detection equipment according to claim 2 is characterized in that: The air inflation assembly includes a second servo electric cylinder (401). The second servo electric cylinder (401) is fixed on the U-shaped detection seat (2). A connecting piece (402) is fixed on the telescopic end of the second servo electric cylinder (401). An air vent seat (403) is fixed on the connecting piece (402). A number of air vent sockets (404) are fixed on the air vent seat (403) and are equally spaced. The air vent sockets (404) are adapted to the liquid inlets (41). One end of the air vent seat (403) is connected to an air inflation pipe (405).

4. The hydraulic unloading valve processing detection equipment according to claim 3 is characterized in that: A sliding piece (8) is arranged inside the sealing cover (5). The sliding piece (8) is elastically connected to the sealing cover (5) through a second spring (9). A抵触杆(10) is fixed on the sliding piece (8).

5. The hydraulic unloading valve processing detection equipment according to claim 4 is characterized in that: A sliding rod (11) is fixed on the side wall of the sealing cover (5). One end of the sliding rod (11) is slidably connected to a抵触块(12). The抵触块(12) is elastically connected to the sealing cover (5) through a third spring (13). A first抵触斜面(14) is arranged below the抵触块(12). The first抵触斜面(14) abuts against the抵触杆(10). An L-shaped抵触块(39) is fixed on the sealing cover (5).

6. The hydraulic unloading valve processing detection equipment according to claim 5, characterized in that: A rotating rod (15) is fixed on the sealing cover (5). A rocker (16) is sleeved on the rotating rod (15). The rocker (16) is elastically connected to the rotating rod (15) through a torsion spring (17). One end of the rocker (16) abuts against the observation indicating rod (6). A second abutting inclined surface (18) is arranged on one side of the abutting block (12). The second abutting inclined surface (18) abuts against the other end of the rocker (16).

7. The hydraulic unloading valve processing detection equipment according to claim 6 is characterized in that: A number of sliding brackets (19) are fixed on the U-shaped detection base (2). Two sliding blocks (20) are slidably connected to the sliding brackets (19). A rectangular block (21) is fixed on the two sliding blocks (20). The sliding brackets (19) are elastically connected to the sliding blocks (20) through fourth springs (22). A chute (23) is formed on the rectangular block (21). A abutting wedge block (24) is slidably connected to the chute (23). A fixing piece (28) is fixed on one side of the sliding block (20). The fixing piece (28) is elastically connected to the abutting wedge block (24) through a sixth spring (29). The plug (43) is fixed on the rectangular block (21).

8. The hydraulic unloading valve processing detection equipment according to claim 7 is characterized in that: A circular hole (25) is formed on the rectangular block (21). A conical abutting head (26) is arranged in the circular hole (25). The conical abutting head (26) is elastically connected to the rectangular block (21) through a fifth spring (27). The conical abutting head (26) abuts against the abutting wedge block (24).

9. The hydraulic unloading valve processing detection equipment according to claim 8, characterized in that: Guide inclined grooves (30) are formed on both sides of the test valve body (4). Guide wedge blocks (31) are fixed on both sides of the rectangular block (21). The guide wedge blocks (31) are adapted to the guide inclined grooves (30).

10. The hydraulic unloading valve processing detection equipment according to claim 9, characterized in that: The plug (43) and the rectangular block (21) are fixed with a piston cylinder (32). A piston (33) is slidably connected in the piston cylinder (32). A piston rod (34) is fixed on the piston (33). The piston rod (34) is elastically connected to the piston cylinder (32) through a seventh spring (35). A abutting frame (36) is fixed on one side of the abutting wedge block (24). An inflation sealing ring (37) is installed on the plug (43). A flow channel (38) is arranged on the plug (43). The piston cylinder (32) is communicated with one end of the flow channel (38). The inflation sealing ring (37) is communicated with the other end of the flow channel (38).

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