Detection device for valve production

Abstract

A detection device for valve production comprises an installation box and two pipelines symmetrically arranged on the installation box in the left-right direction, the pipeline located on the left side is connected with an air compressor, the pipeline located on the right side is provided with a pressure gauge, and the two pipelines are slidably arranged on the installation box in the left-right direction. A driving assembly I for driving the two pipelines to move close to each other or away from each other is arranged in the mounting box; the ends, close to each other, of the two pipelines are fixedly connected with butt joint discs which are matched to abut against, clamp and seal the valve, sealing gaskets are arranged on the sides, facing each other, of the two butt joint discs, and a second driving assembly for driving the two butt joint discs to abut against the valve is arranged on the mounting box. The two pipelines are controlled to move in the direction close to or away from the valve through the first driving assembly, the second driving assembly drives the butt joint disc to abut against the valve, and therefore the installation and detection process of the valve is more automatic, the pipelines and the valve can be rapidly connected and detected, and the valve detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve air tightness detection, and in particular to a detection device for valve production. Background Art

[0002] During valve production, air tightness testing is a critical step in ensuring valve quality and safety. It verifies the valve's sealing performance under specific pressure, prevents media leakage, and ensures the safety and reliability of the pipeline system. Common air tightness testing methods include air pressure testing and water pressure testing. Air pressure testing is the most commonly used method due to its ease of operation, low cost, and applicability to most valves.

[0003] For example, the patent document with the publication number "CN117168707B" and the name "A Sealing Detection Device for Valve Production" includes a detection box and a connecting plate. The top of the detection box is open, and glass is installed on a pair of opposite sides of the detection box. The connecting plate is arranged on the top of the detection box, and clamps are fixedly installed horizontally on the top and bottom of the connecting plate. The two clamps are symmetrically arranged, and each clamp has two symmetrically arranged clamping blocks sliding on the side away from the connecting plate. Each clamp is provided with a moving mechanism for synchronously moving the two clamps. Each clamp is provided with a first flange and a second flange at both ends of the side away from the connecting plate, and the sides of the two clamps are provided with a limiting mechanism for limiting the second flange.

[0004] The aforementioned document connects the valve to the detection device by placing the valve on a clamping seat and then connecting a first flange and a second flange to the valve. However, in actual use, the aforementioned document requires manual connection of the first and second flanges to the valve. After the test is completed, the first and second flanges must also be manually removed from the valve. This cumbersome operation results in a lengthy testing process, which affects test efficiency. Summary of the Invention

[0005] The purpose of the present invention is to address the shortcomings of the existing technology and propose a valve production detection device to solve the technical problem mentioned in the background technology that the valve needs to be manually connected to the flange of the detection device separately, the operation process is relatively cumbersome, and the entire detection process is time-consuming, affecting the detection efficiency.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A detection device for valve production, comprising an installation box, two pipes symmetrically arranged on the installation box along the left and right directions, wherein the pipe on the left is connected to an air compressor, and the pipe on the right is provided with a pressure gauge, the two pipes are respectively slidably arranged on the installation box along the left and right directions, and a driving component 1 is provided in the installation box for driving the two pipes to move toward or away from each other; the ends of the two pipes close to each other are respectively fixedly connected to sealing docking disks for clamping the valve, and the two docking disks are respectively provided with sealing gaskets on the sides facing each other, and a driving component 2 is provided on the installation box for driving the two docking disks to press against the valve.

[0007] Working Principle: The valve includes an air inlet and an exhaust port, and mounting plates are welded to the air inlet and exhaust ports, respectively. When testing the valve, first place the valve on the mounting box and position it between two pipes. Align the air inlet and exhaust ports of the valve with the corresponding pipes, and control the first drive component to drive the two pipes to move synchronously toward the valve. After the docking plates on the two pipes are against the mounting plate of the valve, control the second drive component to drive the two docking plates to move synchronously toward the valve, so that the sealing gaskets on the docking plates are tightly against the mounting plate. The sealing gaskets can effectively fill the connection gap, enhance the sealing of the connection, and avoid air leakage at the connection between the valve and the pipe during the test process, thereby ensuring the accuracy of the valve air tightness test results.

[0008] The beneficial effects of the present invention are as follows: since the driving component 1 can control the two pipes to move toward or away from the valve, the driving component 2 can further drive the docking disk to press against the valve. Therefore, when testing the valve, first place the valve on the installation box and make the valve between the two pipes, align the air inlet and exhaust port of the valve with the corresponding pipes respectively, control the driving component 1 to drive the two pipes to move synchronously toward the valve, and after the docking disks on the two pipes are against the installation disk of the valve, control the driving component 2 to drive the two docking disks to move synchronously toward the valve, so that the sealing gaskets on the docking disks are tightly against the installation disk. The sealing gaskets can effectively fill the connection gap and enhance the sealing of the connection part, thereby making the installation and testing process of the valve more automated, without too much manual operation, and the pipes and valves can be quickly connected and tested, thereby improving the efficiency of valve testing.

[0009] Furthermore, the driving component 1 includes a motor, a screw rod 1 and a movable rod symmetrically arranged on the screw rod 1 along the left and right directions. The motor is fixedly installed on the installation box, the screw rod 1 is fixedly connected to the output end of the motor, and the screw rod 1 is provided with threaded sections with opposite thread rotation directions. The two movable rods are respectively threadedly matched with the corresponding threaded sections. The installation box is provided with a through groove for the movable rod to move along the left and right directions. The two movable rods pass through the corresponding through grooves and are connected to the corresponding pipes. The motor drives the screw rod 1 to rotate, and the screw rod 1 drives the two movable rods to drive the two pipes to move towards or away from each other.

[0010] Furthermore, the installation box is symmetrically provided with installation plates, and the two pipes are connected to the corresponding installation plates in a sliding manner along the left and right directions. The movable rod is fixedly connected to a ring 1 at one end above the installation box, and a ring 2 is fixedly connected to the outer periphery of the pipe. The ring 1 is connected to the ring 2 on the outer periphery of the corresponding pipe through an elastic member 1.

[0011] Furthermore, the second drive assembly includes a drive member and extrusion assemblies corresponding to the two docking plates respectively. The extrusion assemblies are located on the side of the two docking plates facing away from each other. The extrusion assembly includes a mounting ring fixedly mounted on the mounting box and extrusion rods evenly distributed along the circumference of the mounting ring. The mounting ring is coaxially arranged with the pipeline. The extrusion rods are slidingly connected to the mounting ring along the radial direction of the mounting ring. An end of the extrusion rod close to the pipeline is fixedly connected with an inclined wedge. A protrusion cooperating with the inclined wedge is fixedly connected to the docking plate. The drive member drives all the extrusion rods to move synchronously in the direction close to the pipeline. When the inclined wedge contacts the protrusion, the inclined wedge squeezes the protrusion to make the docking plate press tightly against the valve.

[0012] Furthermore, the driving member includes a rotating ring that rotates with the mounting plate and a driving structure that drives the rotating ring to rotate. The rotating ring is provided with an arc groove corresponding to each extrusion rod, the inner arc side of the arc groove faces the inner circumference of the rotating ring, and the distance from the first end of the arc groove to the center of the rotating ring is greater than the distance from the second end to the center of the rotating ring. The extrusion rod is fixedly connected to a guide rod extending into the corresponding arc groove. When the driving member drives the rotating ring to rotate in a first direction, the arc groove drives the guide rod to move toward the second end of the arc groove, and the guide rod drives the extrusion rod to move toward the direction close to the pipeline.

[0013] Furthermore, the rotating ring is fixedly connected to a coaxially arranged sleeve, and the sleeve is rotatably connected to the corresponding mounting plate. The driving structure includes a bevel gear 1 fixedly connected to the screw rod 1, a bevel gear 2 fixedly connected to the outer periphery of the sleeve and a transmission member arranged on the mounting box. The transmission member includes a transmission rod rotatably connected to the mounting box and transmission bevel gears fixedly connected to both ends of the transmission rod. The transmission bevel gear at the lower end of the transmission rod is meshed with bevel gear 1, and the transmission bevel gear at the upper end of the transmission rod is meshed with bevel gear 2.

[0014] Furthermore, the guide rod is connected to a sliding rod for radial sliding along the rotating ring, the end of the sliding rod close to the pipeline is fixedly connected to an arc plate, and the end away from the pipeline is elastically connected to the guide rod through elastic member 2. When the guide rod moves in the direction close to the pipeline, the guide rod drives the sliding rod to move in the direction close to the pipeline through elastic member 2, and the arc plate on the sliding rod aligns the docking plate and the valve.

[0015] Furthermore, the installation box is provided with a clamping assembly for clamping the valve, and the clamping assembly includes clamping plates symmetrically arranged on the installation box along the front-to-back direction and a driving assembly three for driving the two clamping plates to move toward or away from each other.

[0016] Furthermore, the mounting box is provided with a guide groove for the clamping plate to move forward and backward, and the clamping plate is slidably connected in the guide groove along the forward and backward direction. The driving component three includes a mounting block, connecting rods symmetrically arranged on the front and rear sides of the mounting block, and a power component that drives the mounting block to move vertically. One end of the connecting rod is hinged to the mounting block, and the other end is hinged to the corresponding clamping plate. When the power component drives the mounting block to move downward, the mounting block drives the two clamping plates to move towards each other through the connecting rod.

[0017] Furthermore, the power assembly includes a bevel gear three fixedly connected to the screw rod one, a screw rod two rotatably connected to the mounting box, and a bevel gear four fixedly connected to the bottom end of the screw rod two. The bevel gear four is meshed with the bevel gear three, and the mounting block is threadedly matched with the screw rod two. When the screw rod one rotates, it drives the bevel gear three to rotate. The bevel gear three drives the screw rod two to rotate through the bevel gear four. The screw rod two drives the mounting block to move vertically.

[0018] Furthermore, sealing gaskets with protruding docking surfaces are embedded on the two docking plates. When the docking plates are placed against the mounting plate of the valve and further tightened, the sealing gaskets can effectively fill the connection gaps, enhance the sealing of the connection parts, and ensure that no air or water leakage will occur during the detection process, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention; Figure 2 The front view of the present invention when the installation box is hidden; Figure 3 This is a three-dimensional diagram of the present invention when the installation box is hidden; Figure 4 This is a schematic diagram of the assembly of the left side pipeline, drive assembly 1 and drive assembly 2 of the present invention; Figure 5 A schematic diagram of the mounting ring and the extrusion rod of the left pipe of the present invention from a first perspective; Figure 6 A second perspective diagram of the mounting ring and the extrusion rod of the left pipe of the present invention; Figure 7 It is a schematic diagram of the assembly of the installation box and the clamping assembly of the present invention.

[0020] Explanation of Reference Numerals: 1. Mounting box; 11. Mounting plate; 12. Through groove; 13. Mounting ring; 14. Extrusion rod; 15. Wedge block; 16. Guide plate; 17. Guide groove; 18. Slide; 2. Pipe; 21. Docking plate; 22. Sealing gasket; 23. Second collar; 24. Bump; 3. Air compressor; 4. Pressure gauge; 5. Valve; 51. Mounting plate; 6. Motor; 61. Screw rod (1); 62. Movable rod; 63. First collar; 64. Spring 1; 65. Bevel gear 1; 66. Bevel gear 3; 7. Rotating ring; 71. Arc groove; 72. Guide rod; 73. Sleeve; 74. Bevel gear 2; 75. Slide rod; 76. Arc plate; 77. Stop block; 78. Spring 2; 8. Transmission rod; 81. Transmission bevel gear; 9. Clamping plate; 91. Connecting plate; 92. Slider; 10. Mounting block; 101. Connecting rod; 102. Screw rod 2; 103. Bevel gear 4. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 7 As shown, and refer to Figure 1 In the orientation, a detection device for valve production includes an installation box 1, two pipes 2 symmetrically arranged on the installation box 1 along the left-right direction, wherein the pipe 2 on the left is connected to an air compressor 3, and the pipe 2 on the right is installed with a pressure gauge 4. Two installation plates 11 are symmetrically installed on the upper surface of the installation box 1. The two pipes 2 pass through the corresponding installation plates 11 along the left-right direction and slide with the corresponding installation plates 11 respectively. A driving component 1 is installed in the installation box 1 to drive the two pipes 2 to move toward each other or away from each other. The ends of the two pipes 2 close to each other are respectively welded with sealing docking discs 21 that cooperate to clamp the valve 5 tightly. The two docking discs 21 are respectively provided with installation grooves along their circumferences on the sides facing each other. A sealing gasket 22 is embedded in the installation groove, and the sealing gasket 22 protrudes from the docking surface of the docking disc 21. The installation box 1 is provided with a driving component 2 that drives the two docking discs 21 to press against the valve 5.

[0023] The valve 5 includes an air inlet and an exhaust port, and a mounting plate 51 is welded to the air inlet and exhaust port, respectively. When testing the valve 5, first place the valve 5 on the top of the installation box 1, and make the valve 5 located between the two docking plates 21. Align the air inlet and exhaust port of the valve 5 with the corresponding docking plates 21, and control the driving component 1 to drive the two pipes 2 to move synchronously in the direction close to the valve 5, so that the docking plates 21 on the two pipes 2 are both against the mounting plate 51 of the valve 5. Then, control the driving component 2 to drive the two docking plates 21 to move synchronously in the direction close to the valve 5, so that the sealing gasket 22 on the docking plate 21 is tightly against the sealing surface of the mounting plate 51, and compress the sealing gasket 22 so that the sealing gasket 22 effectively fills the connection gap, enhances the sealing of the connection part, and avoids air leakage at the connection between the valve 5 and the pipe 2 during the testing process, thereby ensuring the accuracy of the sealing test results of the valve 5.

[0024] like Figures 2 to 7 As shown, drive assembly 1 includes a motor 6, a screw 1 61, and movable rods 62 symmetrically mounted on the periphery of screw 1 61 in the left-right direction. Motor 6 is fixedly mounted on one side of the mounting box 1 by bolts. Screw 1 61 is fixedly connected to the output end of motor 6 via a reducer. Both ends of screw 1 61 are polished rod segments, which are rotatably inserted into the mounting box 1. Screw 1 61 has two threaded sections with opposite thread rotation directions on its periphery, and two movable rods 62 are threadedly engaged with the corresponding threaded sections. The top of the mounting box 1 has a through slot 12 for the movable rods 62 to move in the left-right direction. The two movable rods 62 extend upward through the corresponding through slots 12. A collar 1 63 is welded to the end of the movable rod 62 located above the mounting box 1. A collar 2 23 is welded to the periphery of the pipe 2. Collar 1 63 is located on the side of collar 2 23 facing the valve 5, and collar 1 63 is connected to the collar 2 23 on the periphery of the corresponding pipe 2 by an elastic member 1. As an example, the elastic member 1 is a spring 1 64 , and a plurality of springs 1 64 are evenly distributed along the outer circumference of the pipe 2 , and one end of the spring 1 64 is fixedly connected to the ring 1 63 , and the other end is fixedly connected to the ring 2 23 .

[0025] The motor 6 drives the screw rod 1 61 to rotate, and the screw rod 1 61 drives the two movable rods 62 to move toward or away from each other. The movable rod 62 drives the collar 2 23 and the corresponding pipe 2 to move through the collar 1 63 and the spring 1 64, thereby driving the two pipes 2 to move toward or away from each other.

[0026] like Figures 4 to 6As shown, drive assembly 2 includes a drive member and an extrusion assembly corresponding to each of the two docking plates 21. The extrusion assembly is located on the side of the two docking plates 21 facing away from each other. The extrusion assembly includes a mounting ring 13 fixedly mounted on the mounting box 1 and four extrusion rods 14 evenly spaced along the circumference of the mounting ring 13. The mounting ring 13 is coaxially arranged with the pipe 2. The extrusion rods 14 are slidably connected to the mounting ring 13 along its radial direction. An angled wedge 15 is fixedly connected to the end of the extrusion rod 14 near the pipe 2. A protrusion 24 that mates with the angled wedge 15 is fixedly connected to one side of the docking plate 21. The drive member drives all extrusion rods 14 to move synchronously toward the pipe 2. When the angled wedge 15 contacts the protrusion 24, as the extrusion rods 14 continue to move, the angled wedge 15 squeezes the protrusion 24, forcing the docking plate 21 connected to the protrusion 24 against the mounting plate 51 of the valve 5, ensuring a tight seal between the docking plate 21 and the mounting plate 51. The movable rod 62 forms a preliminary extrusion on the connection between the pipe 2 and the valve 5 through the cooperation of the collar 1 63, the spring 1 64 and the collar 2 23. The extrusion assembly forms a further extrusion on the connection between the pipe 2 and the valve 5 through the cooperation of the inclined wedge block 15 and the protrusion 24, thereby further ensuring the sealing of the connection between the pipe 2 and the valve 5.

[0027] The driving member includes a rotating ring 7 that rotates with the mounting plate 11 and a driving structure that drives the rotating ring 7 to rotate. The rotating ring 7 is provided with an arc-shaped groove 71 corresponding to each extrusion rod 14. The inner arc side of the arc-shaped groove 71 faces the inner periphery of the rotating ring 7, and the distance from the first end of the arc-shaped groove 71 to the center of the rotating ring 7 is greater than the distance from the second end to the center of the rotating ring 7. That is, the arc-shaped groove 71 is arranged in a whirlwind shape around the center of the rotating ring 7. The extrusion rod 14 is fixedly connected to a guide rod 72 that extends into the corresponding arc-shaped groove 71. Figure 4 In the middle position, when the driving member drives the rotating ring 7 to rotate clockwise, the arcuate groove 71 drives the guide rod 72 to move toward the second end of the arcuate groove 71, and the guide rod 72 drives the extrusion rod 14 to move toward the pipe 2, so that the inclined wedge 15 on the extrusion rod 14 can squeeze the protrusion 24 on the docking plate 21. When the driving member drives the rotating ring 7 to rotate counterclockwise, the arcuate groove 71 drives the guide rod 72 to move toward the first end of the arcuate groove 71, and the guide rod 72 drives the extrusion rod 14 to move away from the pipe 2, so that the inclined wedge 15 on the extrusion rod 14 stops squeezing the protrusion 24.

[0028] like Figure 2 、 Figures 4 to 6As shown, the rotating ring 7 is integrally formed with a coaxially arranged sleeve 73, which is rotatably connected to the corresponding mounting plate 11. The drive structure includes a bevel gear 1 65 fixedly connected to the screw 1 61, a bevel gear 2 74 fixedly connected to the outer periphery of the sleeve 73, and a transmission member disposed on the mounting box 1. The transmission member includes a vertically extending transmission rod 8 and transmission bevel gears 81 fixedly connected to both ends of the transmission rod 8. The transmission rod 8 is rotatably connected to the mounting box 1. The transmission bevel gear 81 at the lower end of the transmission rod 8 meshes with the bevel gear 1 65, while the transmission bevel gear 81 at the upper end of the transmission rod 8 meshes with the bevel gear 2 74. When the screw 1 61 rotates, the bevel gear 1 65 rotates. The bevel gear 1 65, through the meshing transmission bevel gear 81, drives the transmission rod 8 and another transmission bevel gear 81 to rotate. The other transmission bevel gear 81 drives the bevel gear 2 74 and the sleeve 73 to rotate. The sleeve 73 then drives the rotating ring 7, thereby driving the extrusion rod 14.

[0029] When placing the valve 5 between two pipes 2, it is necessary to align the mounting plate 51 on the valve 5 with the docking plate 21 on the pipe 2. To reduce manual intervention and improve the docking accuracy and efficiency of the mounting plate 51 and the docking plate 21, in this embodiment, the guide rod 72 is connected to a slide rod 75 in a radially sliding manner along the rotating ring 7. The end of the slide rod 75 close to the pipe 2 is fixedly connected to an arc plate 76, and the end away from the pipe 2 is integrally formed with a stop block 77. The stop block 77 is elastically connected to the guide rod 72 via a second elastic member. As an example, the second elastic member is a second spring 78, one end of which is fixedly connected to the stop block 77 and the other end is fixedly connected to the guide rod 72. A guide plate 16 corresponding to each slide rod 75 extends from the mounting ring 13 toward the valve 5. The slide rod 75 slides with the corresponding guide plate 16 along the radial direction of the rotating ring 7. When the guide rod 72 moves toward the direction approaching the pipe 2, the guide rod 72 drives the slide rod 75 to move toward the direction approaching the pipe 2 through the spring 2 78, and the arc plate 76 on the slide rod 75 aligns the docking plate 21 and the mounting plate 51 on the valve 5, thereby realizing automatic alignment between the valve 5 and the docking plate 21.

[0030] During the process of passing gas for testing, the high-speed airflow generated by the air compressor 3 may impact the pipe 2 or the valve 5. Therefore, the valve 5 may vibrate slightly during the test, affecting the stability of the connection between the valve 5 and the pipe 2. Figure 2 、 Figure 3 and Figure 7As shown, in this embodiment, the mounting box 1 is provided with a clamping assembly for clamping the valve 5. The clamping assembly includes clamping plates 9 symmetrically arranged along the front-to-back direction on the mounting box 1 and a drive assembly 3 for driving the two clamping plates 9 toward or away from each other. The clamping plates 9 clamp the valve 5, improving the stability of the valve 5 during the inspection process, thereby maintaining a seal at the connection between the valve 5 and the pipe 2. The mounting box 1 is provided with a guide groove 17 for the front-to-back movement of the clamping plates 9. The left and right groove walls of the guide groove 17 are symmetrically provided with slide grooves 18. A connecting plate 91 is welded to the bottom of the clamping plate 9. Sliders 92 extend from the left and right sides of the connecting plate 91, respectively. The slides 92 slide in the front-to-back direction and are connected to the slide grooves 18.

[0031] Drive assembly three comprises a mounting block 10, connecting rods 101 symmetrically positioned at the front and rear sides of the mounting block 10, and a power assembly that drives the mounting block 10 vertically. Connecting rods 101 are hinged at one end to the mounting block 10 and at the other end to the connecting plate 91 of the corresponding clamping plate 9. When the power assembly drives the mounting block 10 downward, the mounting block 10, via the connecting rods 101, moves the two clamping plates 9 toward each other. When the power assembly drives the mounting block 10 upward, the mounting block 10, via the connecting rods 101, moves the two clamping plates 9 away from each other.

[0032] The power assembly includes bevel gear 3 (66) fixedly connected to screw 1 (61), screw 2 (102) rotatably connected to the mounting box (1), and bevel gear 4 (103) fixedly connected to the bottom end of screw 2 (102). Screw 2 (102) extends vertically, and bevel gear 4 (103) meshes with bevel gear 3 (66). The mounting block (10) is threadedly engaged with screw 2 (102). Rotation of screw 1 (61) drives bevel gear 3 (66), which in turn drives screw 2 (102) via bevel gear 4 (103). Screw 2 (102) drives the mounting block (10) vertically, thereby enabling the mounting block (10) to move the two clamping plates (9) via the connecting rod (101).

[0033] Working principle: Place the valve 5 between the two docking plates 21, and control the motor 6 to drive the screw rod 1 61 to rotate clockwise. The screw rod 1 61 drives the two movable rods 62 to move toward each other. The movable rods 62 drive the collar 2 23 and the corresponding pipe 2 to move through the collar 1 63 and the spring 1 64, thereby causing the two docking plates 21 to move toward the valve 5. At the same time, when the screw rod 61 rotates, it drives the bevel gear 65 to rotate clockwise. The bevel gear 65 drives the transmission rod 8 and another transmission bevel gear 81 to rotate through the transmission bevel gear 81 meshing therewith. The other transmission bevel gear 81 drives the bevel gear 2 74 and the sleeve 73 to rotate clockwise. The sleeve 73 drives the rotating ring 7 to rotate clockwise. The arc groove 71 on the rotating ring 7 drives the guide rod 72 to move toward the second end of the arc groove 71. The guide rod 72 drives the extrusion rod 14 to move in the direction close to the pipe 2. At the same time, the guide rod 72 drives the sliding rod 75 to move in the direction close to the pipe 2 through the elastic member 2. When the arc plate 76 on the sliding rod 75 contacts the mounting disk 51 on the valve 5, the mounting disk 51 is pushed to move. When the arc plate 76 abuts against the docking disk 21, the mounting disk 51 and the docking disk 21 are aligned. At the same time, the docking disks 21 on the two pipes 2 respectively abut against the corresponding mounting disks 51 on the valve 5. As the screw rod 61 continues to rotate, the movable rod 62 continues to stretch the spring 64 through the collar 63, so that the spring 64 forms a pulling force on the pipe 2 to move toward the valve 5, thereby achieving that the docking plate 21 is tightly against the mounting plate 51. At the same time, the guide rod 72 also continues to drive the extrusion rod 14 to move in the direction close to the pipe 2. The inclined wedge block 15 on the extrusion rod 14 squeezes the protrusion 24 on the docking plate 21, so that the docking plate 21 is further tightly against the corresponding mounting plate 51. The sealing gasket 22 between the docking plate 21 and the mounting plate 51 is squeezed and deformed, thereby effectively filling the gap between the docking plate 21 and the mounting plate 51, ensuring the sealing between the docking plate 21 and the mounting plate 51. During the rotation of screw rod 1 61 , screw rod 1 61 also drives bevel gear 3 66 to rotate. Bevel gear 3 66 drives screw rod 2 102 to rotate via bevel gear 4 103 . Screw rod 2 102 drives mounting block 10 to move downward. Mounting block 10 drives two clamping plates 9 to move toward each other via connecting rod 101 . When the inclined wedge block 15 presses the docking plate 21 tightly against the mounting plate 51 via the protrusion 24 , the two clamping plates 9 also move to a position to clamp the valve 5 . Then control the air compressor 3 to introduce gas into the pipeline 2 until the pressure gauge 4 reaches the set value. After that, maintain the pressure for the set time and monitor the pressure change. If the pressure drop exceeds the standard, it is determined to be a leak.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A valve production detection device, comprising an installation box (1), two pipes (2) symmetrically arranged on the installation box (1) along the left and right directions, wherein the pipe (2) on the left is connected to an air compressor (3), and the pipe (2) on the right is provided with a pressure gauge (4), characterized in that: The two pipes (2) are respectively slidably arranged on the installation box (1) along the left and right directions, and a driving component 1 for driving the two pipes (2) to move toward or away from each other is provided in the installation box (1); the ends of the two pipes (2) close to each other are respectively fixedly connected with docking plates (21) for clamping and sealing the valve (5), and the two docking plates (21) are respectively provided with sealing gaskets (22) on the sides facing each other, and a driving component 2 for driving the two docking plates (21) to press against the valve (5) is provided on the installation box (1).

2. The valve production detection device according to claim 1, characterized in that: The driving component 1 includes a motor (6), a screw rod 1 (61) and a movable rod (62) symmetrically arranged on the screw rod 1 (61) along the left and right directions. The motor (6) is fixedly installed on the installation box (1). The screw rod 1 (61) is fixedly connected to the output end of the motor (6), and the screw rod 1 (61) is provided with thread segments with opposite thread rotation directions. The two movable rods (62) are respectively threadedly matched with the corresponding thread segments. The installation box (1) is provided with a through slot (12) for the movable rod (62) to move along the left and right directions. The two movable rods (62) pass through the corresponding through slots (12) and are connected to the corresponding pipes (2). The motor (6) drives the screw rod 1 (61) to rotate, and the screw rod 1 (61) drives the two movable rods (62) to drive the two pipes (2) to move in a direction close to or away from each other.

3. The valve production detection device according to claim 2, characterized in that: The installation box (1) is symmetrically provided with installation plates (11), and the two pipes (2) are slidably connected to the corresponding installation plates (11) along the left and right directions. One end of the movable rod (62) located above the installation box (1) is fixedly connected to a first collar (63), and the outer periphery of the pipe (2) is fixedly connected to a second collar (23). The first collar (63) and the second collar (23) on the outer periphery of the corresponding pipe (2) are connected via an elastic member (1).

4. The valve production detection device according to claim 3, characterized in that: The second driving assembly comprises a driving member and an extrusion assembly corresponding to the two docking discs (21), the extrusion assembly being located on the side of the two docking discs (21) facing away from each other, the extrusion assembly comprising a mounting ring (13) fixedly mounted on the mounting box (1) and extrusion rods (14) uniformly distributed along the circumference of the mounting ring (13), the mounting ring (13) being coaxially arranged with the pipe (2), the extrusion rods (14) being slidably connected to the mounting ring (13) along the radial direction of the mounting ring (13), and an inclined wedge (15) being fixedly connected to one end of the extrusion rod (14) close to the pipe (2), a convex block (24) cooperating with the inclined wedge (15) being fixedly connected to the docking disc (21), the driving member drives all the extrusion rods (14) to move synchronously in a direction close to the pipe (2), and when the inclined wedge (15) contacts the convex block (24), the inclined wedge (15) squeezes the convex block (24) so ​​that the docking disc (21) is pressed tightly against the valve (5).

5. The valve production detection device according to claim 4, characterized in that: The driving member comprises a rotating ring (7) rotatably matched with the mounting plate (11) and a driving structure for driving the rotating ring (7) to rotate. The rotating ring (7) is provided with an arc groove (71) corresponding to each extrusion rod (14). The inner arc side of the arc groove (71) faces the inner periphery of the rotating ring (7), and the distance from the first end of the arc groove (71) to the center of the rotating ring (7) is greater than the distance from the second end of the arc groove (71) to the center of the rotating ring (7). The extrusion rod (14) is fixedly connected to a guide rod (72) extending into the corresponding arc groove (71). When the driving member drives the rotating ring (7) to rotate in a first direction, the arc groove (71) drives the guide rod (72) to move toward the second end of the arc groove (71), and the guide rod (72) drives the extrusion rod (14) to move in a direction close to the pipe (2).

6. The valve production detection device according to claim 5, characterized in that: The rotating ring (7) is fixedly connected to a coaxially arranged sleeve (73), and the sleeve (73) is rotatably connected to the corresponding mounting plate (11). The driving structure includes a bevel gear 1 (65) fixedly connected to the screw rod 1 (61), a bevel gear 2 (74) fixedly connected to the outer periphery of the sleeve (73), and a transmission member arranged on the mounting box (1). The transmission member includes a transmission rod (8) rotatably connected to the mounting box (1) and transmission bevel gears (81) fixedly connected to both ends of the transmission rod (8). The transmission bevel gear (81) at the lower end of the transmission rod (8) is meshed with the bevel gear 1 (65), and the transmission bevel gear (81) at the upper end of the transmission rod (8) is meshed with the bevel gear 2 (74).

7. The valve production detection device according to claim 6, characterized in that: The guide rod (72) is connected to a slide rod (75) in a radially sliding manner along the rotating ring (7). The end of the slide rod (75) close to the pipeline (2) is fixedly connected to the arc plate (76), and the end away from the pipeline (2) is elastically connected to the guide rod (72) through the second elastic member. When the guide rod (72) moves in a direction close to the pipeline (2), the guide rod (72) drives the slide rod (75) to move in a direction close to the pipeline (2) through the second elastic member, and the arc plate (76) on the slide rod (75) aligns the docking plate (21) and the valve (5).

8. The valve production detection device according to claim 2 or 7, characterized in that: The installation box (1) is provided with a clamping assembly for clamping the valve (5), and the clamping assembly comprises clamping plates (9) symmetrically arranged on the installation box (1) along the front-back direction and a driving assembly three for driving the two clamping plates (9) to move toward or away from each other.

9. The valve production detection device according to claim 8, characterized in that: The mounting box (1) is provided with a guide groove (17) for the clamping plate (9) to move forward and backward. The clamping plate (9) is slidably connected in the guide groove (17) along the forward and backward direction. The driving component three includes a mounting block (10), a connecting rod (101) symmetrically arranged on the front and rear sides of the mounting block (10), and a power component for driving the mounting block (10) to move vertically. One end of the connecting rod (101) is hinged to the mounting block (10), and the other end is hinged to the corresponding clamping plate (9). When the power component drives the mounting block (10) to move downward, the mounting block (10) drives the two clamping plates (9) to move in a direction close to each other through the connecting rod (101).

10. The valve production detection device according to claim 9, characterized in that: The power assembly includes a bevel gear three (66) fixedly connected to the screw rod one (61), a screw rod two (102) rotatably connected to the mounting box (1), and a bevel gear four (103) fixedly connected to the bottom end of the screw rod two (102). The bevel gear four (103) is meshed with the bevel gear three (66). The mounting block (10) is threadedly matched with the screw rod two (102). When the screw rod one (61) rotates, the bevel gear three (66) is driven to rotate. The bevel gear three (66) drives the screw rod two (102) to rotate through the bevel gear four (103). The screw rod two (102) drives the mounting block (10) to move vertically.

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