Device for detecting sealing performance of valve body of high-pressure stop valve

Abstract

The invention relates to the field of sealing detection, in particular to a high-pressure stop valve body sealing performance detection device which comprises a detection box body used for placing a valve body for observation and comprising a water tank, the water tank is arranged to be a U-shaped groove with an upward opening, and the bottom of the side of the water tank is fixedly connected with a mounting plate. An outer electric push rod is mounted at the top of the mounting plate; and the supporting assembly is arranged in the water tank, is used for bearing the valve body and comprises a cross beam, and limiting sliding rails are arranged on the two sides of the cross beam. Through cooperation of the first plugging assembly, the second plugging assembly and the supporting assembly, external bubble interference can be effectively avoided, two-way pressure detection is supported, and the detection accuracy and automation level are improved, so that the problems that in the prior art, in the detection process, non-leakage bubbles are generated, judgment of detection personnel is interfered, and the detection efficiency is improved are solved. And false detection or missing detection is caused. And due to limitation of one-way detection, the sealing performance of the valve body in a two-way pressure-bearing state is difficult to comprehensively evaluate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stop valve, in particular to a high-pressure stop valve body sealing detection device. BACKGROUND

[0002] In the production and detection process of high-pressure stop valve, the sealing performance of the valve body is one of the key indicators to measure its quality. The traditional sealing detection method usually adopts water immersion method or air pressure method, and whether there is leakage is judged by observing whether bubbles are generated on the surface of the valve body. However, these methods have the following technical defects: external bubble interference: during the detection process, due to the influence of environment factors, non-leakage bubbles are easily generated on the outer surface of the valve body, which interferes with the judgment of the detection personnel, resulting in false detection or missed detection. One-way detection limitation: the traditional detection device usually only supports one-way pressurization (such as only pressurizing from the inlet end), which cannot simulate the two-way pressure change under actual working conditions, and it is difficult to comprehensively evaluate the sealing performance of the valve body under two-way pressure state.

[0003] In view of the above problems, an improved high-pressure stop valve body sealing detection device is needed, which can effectively avoid external bubble interference, support two-way pressure detection, and improve the accuracy and automation level of detection.

[0004] Therefore, it is necessary to invent a high-pressure stop valve body sealing detection device to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a high-pressure stop valve body sealing detection device, which can effectively avoid external bubble interference, support two-way pressure detection, and improve the accuracy and automation level of detection by the cooperation of the first plugging assembly, the second plugging assembly and the supporting assembly, so as to solve the problems of non-leakage bubbles in the detection process, interference with the judgment of the detection personnel, false detection or missed detection, one-way detection limitation, and difficulty in comprehensively evaluating the sealing performance of the valve body under two-way pressure state in the prior art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme: a high-pressure stop valve body sealing detection device, comprising: A detection box body is used for putting the valve body into observation, comprising a water tank, the water tank is arranged as a U-shaped groove with upward opening, the bottom of the side of the water tank is fixedly connected with a mounting plate, and the top of the mounting plate is installed with an external electric push rod; A supporting assembly is arranged in the interior of the water tank and is used for supporting the valve body, comprising a cross beam, limit sliding rails are arranged on both sides of the cross beam, a first vertical plate is fixedly connected to one end of the cross beam, and a second vertical plate is fixedly connected to the other end of the cross beam; First and second sealing assemblies are installed on one side of the first and second vertical plates, and are used for clamping the valve body, the first sealing assembly comprises a movable plate, and a rotating disc one is rotatably connected to the inside of the movable plate, the second sealing assembly comprises a fixed plate, and a rotating disc two is rotatably connected to the inside of the fixed plate.

[0007] As a preferred scheme of the present application, the output end of the outer electric push rod is fixedly connected with an output rod, the top end of the output rod is fixedly connected with a connecting beam, both ends of the connecting beam are fixedly connected with connecting frames, the connecting frames are L-shaped, and the inner ends of the two connecting frames are detachably connected with the first and second vertical plates.

[0008] As a preferred scheme of the present application, the inner wall of the water tank is provided with grooves on both sides, the outer sides of the first and second vertical plates are fixedly connected with protrusions, the protrusions are in sliding connection with the grooves, the gas inlet pipe is fixedly penetrated through the top end of the protrusion and communicates with the internal gas passage of the protrusion, and the internal gas passage of the gas inlet pipe is provided with an electric valve.

[0009] As a preferred scheme of the present application, the bottom of the movable plate is fixedly connected with a sliding block, the sliding block is in sliding connection with the limiting slide rail, an inner electric push rod is arranged between the movable plate and the first vertical plate, and the rear end of the rotating disc one is provided with a connecting hose in communication with the protrusion.

[0010] As a preferred scheme of the present application, the top of the rotating disc one is provided with a high-pressure valve one, the outer side of the rotating disc one is provided with a limiting groove one, the inside of the movable plate is provided with a limiting block one, and the limiting groove one is matched with the limiting block one.

[0011] As a preferred scheme of the present application, the inside of the rotating disc one is movably connected with an active disc one, the cross section of the active disc one is T-shaped, a plurality of elastic members are arranged between the active disc one and the rotating disc one, the active disc one is in limiting sliding connection with the rotating disc one, the outer end of the active disc one is fixedly connected with a sealing washer one, and the inside of the active disc one is provided with a gas outlet one in communication with the connecting hose and the high-pressure valve one.

[0012] As a preferred scheme of the present application, the bottom of the fixed plate is fixedly connected with a mounting block, the mounting block is in sliding connection with the limiting slide rail, the mounting block and the cross beam are fixed through screws, the outer side of the rotating disc two is fixedly connected with a gear, the side of the gear is meshingly connected with a rack, and the rack is fixedly connected with the water tank.

[0013] As a preferred scheme of the present application, the top of the rack is provided with a high-pressure valve two, the outer side of the rotating disc two is provided with a limiting groove two, the inner side of the fixed plate is fixedly connected with a limiting block two, and the high-pressure valve two is matched with the limiting block two.

[0014] As a preferred scheme of the present application, the inside of the rotating disc two is provided with a movable groove, the inside of the movable groove is movably connected with a movable disc two, the cross section of the movable disc two is provided with a T shape, the movable disc two is limitingly and slidably connected with the rotating disc two, a spring is arranged between the movable disc two and the rotating disc two, the outer side of the movable disc two is fixedly connected with a sealing washer two, and the inside of the movable disc two is provided with a gas outlet two communicated with the high-pressure valve two.

[0015] In the above technical scheme, compared with the prior art, the present application has the following technical effects and advantages: Through the contraction of the output rod driven by the outer electric push rod, the connecting beam drives the connecting frame to descend, the connecting frame drives the support assembly to descend as a whole, the valve body is immersed in water as a whole, and it is convenient to observe whether there is gas leakage; in the process of descending of the support assembly, the second plugging assembly drives the valve body to rotate one circle as a whole, so that the bubbles adhered to the outer side of the valve body are released, non-leakage bubbles are prevented from being generated, and the judgment of the detection personnel is prevented from being interfered; Through the user, one of the gas inlet pipes can be started first, gas is input to one side of the valve body through the gas inlet pipe, whether there is gas leakage on the other side is observed, after the detection is completed, the valve body does not need to be disassembled, the gas inlet pipe is closed and the other gas inlet pipe is started, and whether there is gas leakage is observed, and the detection efficiency is high; When the valve body contacts the gas outlet one, in the extrusion state, the valve body drives the movable disc one to contract inwardly in the inside of the rotating disc one, extrudes the elastic member, the rotating disc one arranged on the side close to the valve body is provided with a sealing sheet, and the sealing sheet can be sealed under the extrusion of the movable disc one, water vapor is prevented from entering, the sealing effect of the end of the valve body is enhanced by the action of the sealing washer one and the elastic member, the elasticity of the elastic member is lower compared to the thrust of the inner electric push rod, and in the process of clamping the valve body, the elastic member cannot affect the close adhesion between the movable disc one and the rotating disc one, the second plugging assembly and the first plugging assembly are the same, and the sealing property is improved, and leakage under high pressure is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Figure 1 It is a whole first perspective structure diagram of the present application. Figure 2 The overall second perspective view of the structure of the application is shown in the figure; Figure 3 The overall structure of the support assembly of the application is shown in the figure; Figure 4 The overall structure of the application is shown in the figure Figure 2 The enlarged structure of point A in the figure is shown in the figure; Figure 5 The first perspective view of the first sealing assembly of the application is shown in the figure; Figure 6 The second perspective view of the first sealing assembly of the application is shown in the figure; Figure 7 The exploded first perspective view of the second sealing assembly of the application is shown in the figure; Figure 8 The exploded second perspective view of the second sealing assembly of the application is shown in the figure.

[0018] Explanation of reference signs: 001, detection box; 002, support assembly; 003, first sealing assembly; 004, second sealing assembly; 101, water tank; 102, mounting plate; 103, outer electric push rod; 104, output rod; 105, connecting beam; 106, connecting frame; 201, cross beam; 202, limiting slide rail; 203, first vertical plate; 204, second vertical plate; 205, air inlet pipe; 206, protruding block; 207, groove; 301, movable plate; 302, sliding block; 303, inner electric push rod; 304, rotating disc one; 305, connecting hose; 306, high-pressure valve one; 307, limiting groove one; 308, limiting block one; 309, movable disc one; 310, sealing washer one; 311, air outlet one; 401, fixed plate; 402, mounting block; 403, rotating disc two; 404, rack; 405, high-pressure valve two; 406, limiting groove two; 407, limiting block two; 408, movable groove; 409, movable disc two; 410, sealing washer two; 411, air outlet two; 412, spring. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical solutions of the application, the application will be further described in detail below with reference to the accompanying drawings.

[0020] The application provides a high-pressure stop valve body sealing detection device as shown in the figure, which comprises: Figures 1-8 ​The detection box 001 for placing the valve body for observation comprises a water tank 101 provided as a V-shaped groove with an upward opening, and the side bottom of the water tank 101 is fixedly connected with a mounting plate 102, and the top of the mounting plate 102 is installed with an outer electric push rod 103; The support assembly 002 is arranged in the inside of the water tank 101 and is used for supporting the valve body and comprises a cross beam 201, and the two sides of the cross beam 201 are provided with limiting slide rails 202, and one end of the cross beam 201 is fixedly connected with a first vertical plate 203, and the other end is fixedly connected with a second vertical plate 204; The first plugging assembly 003 and the second plugging assembly 004 are arranged on one side of the first vertical plate 203 and the second vertical plate 204 respectively, and are used for clamping the valve body, the first plugging assembly 003 comprises a movable plate 301, and the inside of the movable plate 301 is rotatably connected with a rotating disc one 304, and the second plugging assembly 004 comprises a fixed plate 401, and the inside of the fixed plate 401 is rotatably connected with a rotating disc two 403.

[0021] The high-pressure stop valve body will generate high pressure in actual use, and if the sealing performance is unqualified, the risk of leakage will be caused, in order to avoid this risk, the sealing performance needs to be detected, in the detection process, the user first places the high-pressure stop valve body above the cross beam 201, which can be placed manually or by a mechanical hand, and then starts the inner electric push rod 303 to drive the movable plate 301 and the fixed plate 401 to approach each other, so as to clamp and fix the valve body, and the high-pressure valve one 306 and the high-pressure valve two 405 and the air inlet pipe 205 are closed in the initial state, and water is arranged in the inside of the water tank 101.

[0022] As further optimization of the application, the output end of the outer electric push rod 103 is fixedly connected with an output rod 104, the top end of the output rod 104 is fixedly connected with a connecting beam 105, the two ends of the connecting beam 105 are fixedly connected with connecting frames 106, the connecting frames 106 are arranged in an L shape, and the inner ends of the two connecting frames 106 are respectively detachably connected with the first vertical plate 203 and the second vertical plate 204; First, the outer electric push rod 103 is started, the outer electric push rod 103 drives the output rod 104 to contract, the connecting beam 105 drives the connecting frame 106 to descend, the connecting frame 106 drives the support assembly 002 to descend as a whole, the valve body is immersed in water as a whole, and it is convenient to observe whether there is gas leakage, the support assembly 002 uniformly descends at a rotating speed of 5-10 rpm, drives the valve body to rotate one circle, ensures that the attached bubbles are fully separated, so as to facilitate the release of the bubbles attached to the outside of the valve body, prevents the generation of non-leakage bubbles, and interferes with the judgment of the detection personnel.

[0023] The inner wall of the water tank 101 is provided with a groove 207 on both sides, the outer side of the first vertical plate 203 and the second vertical plate 204 is fixedly connected with a protrusion 206, the protrusion 206 is in sliding connection with the groove 207, the air inlet pipe 205 is fixedly penetrated through the top end of the protrusion 206 and is in communication with the internal air passage of the protrusion 206, and the internal air passage of the air inlet pipe 205 is provided with an electric valve; When clamping, the user can first start one of the air inlet pipes 205, input the gas into one side of the valve body through the air inlet pipe 205, and observe whether there is gas leakage on the other side. After detection, the valve body does not need to be disassembled, the air inlet pipe 205 is closed and the other air inlet pipe 205 is started, and then whether there is gas leakage is observed. The detection efficiency is high. When the supporting assembly 002 is lifted, the protrusion 206 slides in the groove 207, which is convenient for limiting the supporting assembly 002 and improving the stability.

[0024] In the above structure, the bottom of the movable plate 301 is fixedly connected with a sliding block 302, the sliding block 302 is in sliding connection with the limiting slide rail 202, the movable plate 301 and the first vertical plate 203 are provided with an internal electric push rod 303, the rear end of the rotating disc one 304 is provided with a connecting hose 305 in communication with the protrusion 206, wherein the top of the rotating disc one 304 is provided with a high-pressure valve one 306, the outer side of the rotating disc one 304 is provided with a limiting groove one 307, the inside of the movable plate 301 is provided with a limiting block one 308, and the limiting groove one 307 is matched with the limiting block one 308. When clamping, the user can drive the movable plate 301 to move by starting the internal electric push rod 303. The movable plate 301 moves in the internal sliding block 302 of the limiting slide rail 202, which is convenient for the movable plate 301 and the fixed plate 401 to move close to each other, so as to clamp and fix the valve body. When the valve body rotates, the valve body contacts the sealing gasket one 310, so as to drive the movable disc one 309 and the rotating disc one 304 to rotate in the internal movable plate 301. The limiting groove one 307 and the limiting block one 308 can limit the rotating disc one 304, which is beneficial to improve the stability.

[0025] Further, the internal movable plate 301 is movably connected with the movable disc one 309, the cross section of the movable disc one 309 is provided with a T-shaped structure, a plurality of elastic members are arranged between the movable disc one 309 and the rotating disc one 304, the movable disc one 309 and the rotating disc one 304 are in limiting sliding connection, the outer end of the movable disc one 309 is fixedly connected with the sealing gasket one 310, the internal movable disc one 309 is provided with a gas outlet one 311 in communication with the connecting hose 305 and the high-pressure valve one 306. When the valve body is in contact with the air outlet 311, the valve body pushes the sealing washer 310 and the movable disc 309 to shrink inwardly in the interior of the rotating disc 1, extruding the elastic member, wherein the movable disc 309 is arranged in a T shape, so that the outer side of the movable disc 309 can be tightly attached to the rotating disc 1, at this time, the movable disc 309 has slid to the end, and the movable disc 309 and the rotating disc 1 are provided with a limiting block, so that the movable disc 309 cannot rotate in the interior of the rotating disc 1, and the movable disc 309 can drive the rotating disc 1 to rotate synchronously, the rotating disc 1 is provided with a sealing sheet on the side close to the valve body, which can be sealed under the extrusion of the movable disc 309, preventing water vapor from entering, wherein the sealing washer 310 and the elastic member can enhance the sealing effect of the end of the valve body, and the elastic force of the elastic member is lower than the thrust of the inner electric push rod 303, so that the elastic member cannot affect the tight attachment between the movable disc 309 and the rotating disc 1 during clamping the valve body, In further optimization of the above embodiment, the bottom of the fixed plate 401 is fixedly connected with a mounting block 402, the mounting block 402 is in sliding connection with the limiting slide rail 202, and the mounting block 402 is fixed with the cross beam 201 through screws, the outer side of the rotating disc 2 403 is fixedly connected with a gear, the side of the gear is in meshing connection with a rack 404, and the rack 404 is fixedly connected with the water tank 101; When different models of valve bodies need to be detected, the user can manually push the second plugging assembly 004 to move on the cross beam 201, and when it is moved to a proper position, the user can fix the fixed plate 401 through screws, thereby expanding the application range, wherein the rack 404 is fixed on the inner side wall of the water tank 101 through screws, and can also be adjusted according to the position of the second plugging assembly 004 and fixed through screws, when the supporting assembly 002 descends, the supporting assembly 002 drives the second plugging assembly 004 to descend, the gear meshes with the rack 404, so that the gear rotates, and the gear drives the rotating disc 2 403 to rotate, when the supporting assembly 002 ascends and descends, the gear rolls along the fixed rack 404, driving the rotating disc 2 403 to rotate.

[0026] Further, the top of the rack 404 is provided with a high-pressure valve 2 405, the outer side of the rotating disc 2 403 is provided with a limiting groove 2 406, the inner side of the fixed plate 401 is fixedly connected with a limiting block 2 407, the high-pressure valve 2 405 cooperates with the limiting block 2 407, when the rotating disc 2 403 rotates, the limiting groove 2 406 cooperates with the limiting block 2 407, thereby facilitating to improve stability, The rotating disc two 403 is internally provided with a movable groove 408, the movable groove 408 is movably connected with a movable disc two 409, the movable disc two 409 is provided with a T-shaped cross section, the movable disc two 409 is limitingly and slidably connected with the rotating disc two 403, a spring 412 is arranged between the movable disc two 409 and the rotating disc two 403, the movable disc two 409 is fixedly connected with a sealing washer two 410 on the outside, and the movable disc two 409 is internally provided with a gas outlet two 411 in communication with the high-pressure valve two 405; When the valve body is in contact with the sealing washer two 410, the sealing washer two 410 is pressed against the spring 412 through the movable disc two 409, so that the movable disc two 409 is tightly attached to the rotating disc two 403, wherein the rotating disc two 403 is provided with a sealing ring matched with the movable disc two 409, to prevent water vapor from entering, when clamping, the movable disc two 409 slides to the end, and a limiting block is arranged between the movable disc two 409 and the rotating disc two 403, so that the movable disc two 409 cannot rotate in the rotating disc two 403, and the rotating disc two 403 can drive the movable disc two 409 to rotate synchronously, wherein the spring 412 and the sealing washer two 410 can seal the end of the valve body to prevent gas leakage.

[0027] When it is needed to detect whether the valve body leaks gas near the first plugging assembly 003 side, the user can start the gas inlet pipe 205 near the second plugging assembly 004 side to make the gas enter the inside of the rotating disc two 403 through the gas inlet pipe 205, and enter the inside of the valve body through the sealing washer two 410, wherein the rotating disc two 403 is in communication with the output end of the gas inlet pipe 205 and is connected with a hose, at this time, the high-pressure valve two 405 is closed, and the high-pressure valve one 306 is opened, if there is gas leakage, the high-pressure valve one 306 will emit gas, which is convenient for observation; When it is needed to detect whether the valve body leaks gas near the second plugging assembly 004 side, the user can start the gas inlet pipe 205 near the first plugging assembly 003 side to make the gas enter the inside of the rotating disc one 304 through the connecting hose 305, and enter the inside of the valve body through the gas outlet one 311, at this time, the high-pressure valve one 306 is closed and the high-pressure valve two 405 is opened, if there is gas leakage, the high-pressure valve two 405 will emit gas; When bidirectional testing is needed, the user can simultaneously open the two gas inlet pipes 205 and close the high-pressure valve two 405 and the high-pressure valve one 306, and a pressure sensor is arranged in the inside of the rotating disc two 403 and the rotating disc one 304 to detect bidirectional pressure change; The above only describes certain exemplary embodiments of the application by way of illustration, and it is self-evident that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the application.

Claims

1. A high-pressure stop valve body sealing detection device, characterized by: Comprising: A detection box body (001) for placing the valve body for observation, including a water tank (101). The water tank (101) is arranged as a U-shaped groove with an upward opening. The bottom of the side of the water tank (101) is fixedly connected with a mounting plate (102), and an external electric push rod (103) is installed on the top of the mounting plate (102); A support component (002) arranged inside the water tank (101) for supporting the valve body, including a cross beam (201). Both sides of the cross beam (201) are provided with limiting slide rails (202). One end of the cross beam (201) is fixedly connected with a first vertical plate (203), and the other end is fixedly connected with a second vertical plate (204); A first sealing component (003) and a second sealing component (004). The first sealing component (003) is installed on one side of the first vertical plate (203), and the second sealing component (004) is installed on one side of the second vertical plate (204). The first sealing component (003) and the second sealing component (004) are used for clamping the valve body. The first sealing component (003) includes a movable plate (301), and a first rotating disc (304) is rotatably connected inside the movable plate (301). The second sealing component (004) includes a fixed plate (401), and a second rotating disc (403) is rotatably connected inside the fixed plate (401).

2. A high-pressure stop valve body sealing detection device according to claim 1, characterized in that: The output end of the external electric push rod (103) is fixedly connected with an output rod (104). The top end of the output rod (104) is fixedly connected with a connecting beam (105). Both ends of the connecting beam (105) are fixedly connected with connecting frames (106). The connecting frames (106) are arranged in an L shape. The inner ends of the two connecting frames (106) are respectively detachably connected with the first vertical plate (203) and the second vertical plate (204).

3. A high-pressure stop valve body sealing detection device according to claim 1, characterized in that: Both sides of the inner wall of the water tank (101) are provided with grooves (207). The outer sides of the first vertical plate (203) and the second vertical plate (204) are fixedly connected with bumps (206). The bumps (206) are slidably connected with the grooves (207). The air inlet pipe (205) fixedly penetrates through the top end of the bump (206) and is in air path communication with the inside of the bump. And an electric valve is arranged inside the air inlet pipe (205).

4. A high-pressure stop valve body sealing detection device according to claim 1, characterized in that: The bottom of the movable plate (301) is fixedly connected with a sliding block (302). The sliding block (302) is slidably connected with the limiting slide rail (202). An internal electric push rod (303) is arranged between the movable plate (301) and the first vertical plate (203). A connecting hose (305) communicating with the bump (206) is arranged at the rear end of the first rotating disc (304).

5. A high-pressure stop valve body sealing detection device according to claim 4, characterized in that: A high-pressure valve one (306) is arranged on the top of the first rotating disc (304). A first limiting groove (307) is opened on the outer side of the first rotating disc (304). A first limiting block (308) is arranged inside the movable plate (301). The first limiting groove (307) is matched with the first limiting block (308).

6. A high-pressure stop valve body sealing detection device according to claim 5, characterized in that: The rotating disk 1 (304) is movably connected to the movable disk 1 (309) inside, the cross section of the movable disk 1 (309) is set to be T-shaped, a plurality of elastic members are set between the movable disk 1 (309) and the rotating disk 1 (304), the movable disk 1 (309) and the rotating disk 1 (304) are connected in a limited sliding manner, the outer end of the movable disk 1 (309) is fixedly connected to the sealing gasket 1 (310), and the interior of the movable disk 1 (309) is provided with an air outlet 1 (311) that is connected to both the connecting hose (305) and the high-pressure valve 1 (306).

7. A high-pressure stop valve body sealing detection device according to claim 1, characterized in that: The bottom of the fixed plate (401) is fixedly connected to a mounting block (402), the mounting block (402) is slidably connected to the limiting slide rail (202), and the mounting block (402) is fixed to the crossbeam (201) by screws. The outer side of the rotating disk 2 (403) is fixedly connected to a gear, and the side of the gear is meshed with a rack (404), and the rack (404) is fixedly connected to the water tank (101).

8. A high-pressure stop valve body sealing detection device according to claim 7, characterized in that: A high-pressure valve 2 (405) is provided on the top of the rack (404), a limiting groove 2 (406) is provided on the outer side of the rotating disk 2 (403), and a limiting block 2 (407) is fixedly connected to the inner side of the fixed plate (401), and the high-pressure valve 2 (405) cooperates with the limiting block 2 (407).

9. A high-pressure stop valve body sealing detection device according to claim 8, characterized in that: A movable groove (408) is provided inside the rotating disk 2 (403), and the movable groove (408) is movably connected to the movable disk 2 (409). The cross section of the movable disk 2 (409) is T-shaped. The movable disk 2 (409) is connected to the rotating disk 2 (403) in a limited sliding manner. A spring (412) is provided between the movable disk 2 (409) and the rotating disk 2 (403). A sealing gasket 2 (410) is fixedly connected to the outer side of the movable disk 2 (409), and an air outlet 2 (411) connected to the high-pressure valve 2 (405) is provided inside the movable disk 2 (409).

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