Valve sealing performance detection device

Abstract

A valve sealing performance detection device disclosed by the present invention comprises a bottom plate, the middle part of the upper end of the bottom plate is fixedly connected with a water tank, one side of the water tank is provided with symmetrical mounting plates, the symmetrical mounting plates are directly and rotatably connected with a plurality of roll shafts, the outer walls of the plurality of roll shafts are jointly sleeved with a belt, and the upper end of the belt is provided with a valve. A detection mechanism used for detecting the sealing performance of the valve is arranged on the upper portion of an inner cavity of the water tank, and a driving mechanism used for driving the belt to move is arranged on the side, close to the water tank, of the outer wall of the mounting plate. A U-shaped plate is pushed to do horizontal reciprocating motion, a valve located at the joint of a connecting plate and a belt is pushed to a bearing plate, when the U-shaped plate is reset, a rack is pushed to move, then the belt is driven to move towards the position of the connecting plate, and therefore a new valve is moved to the joint of the connecting plate and the belt; the distance between the adjusting block and the fixing block can be adjusted by rotating the threaded rod, so that the moving distance of the belt is the same as the size of the valve.

Description

Technical Field

[0001] The present invention relates to the technical field of valve quality detection, in particular to a valve sealing detection device. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow and pressure relief. All manufactured valves need to be tested for air tightness.

[0003] Such as Chinese patent announcement number: CN216349433U A valve Production Air tightness detection device , including operating table, carrier, Detection The upper surface of the left end of the operating table is fixedly connected to a carrier, and the bottom surface of the top of the carrier is provided with a Detection Mechanism, the bottom surface of the operating table is provided with a shift mechanism, the Detection The mechanism includes a supporting cylinder, a supporting plate, a lower sealing block, a guide cylinder, a guide plate, an upper sealing block, a booster pump, an air pipe, an electromagnetic valve and a pressure gauge.

[0004] In this solution, by controlling the start-up of the guide cylinder, the guide cylinder can drive the guide plate and the upper sealing block to move downward at the same time. When the inner wall of the upper sealing block fully squeezes the valve, the valve positioning can be completed quickly, and the valve cavity can be inflated by the booster pump to complete the sealing test. Although the detection mechanism is easy to move, manual loading and unloading of the valve is still required during valve testing. Summary of the Invention

[0005] The object of the present invention is to provide a valve sealing detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A valve sealing detection device includes a base plate, a water trough is fixedly connected to the middle of the upper end of the base plate, a symmetrical mounting plate is provided on one side of the water trough, the symmetrical mounting plate is directly rotatably connected to a plurality of rollers, the outer walls of the plurality of rollers are jointly sleeved with a belt, a valve is placed on the upper end of the belt, a detection mechanism for performing sealing detection on the valve is provided on the upper part of the inner cavity of the water trough, a driving mechanism for driving the belt to move is provided on the side of the outer wall of the mounting plate close to the water trough, and the driving mechanism includes a U-shaped plate, when the U-shaped plate is close to the position of the water trough, the belt remains stationary, and when the U-shaped plate is away from the position of the water trough, the belt drives the valve to move toward the direction of the water trough.

[0007] As a further solution of the present invention: the middle part of the side of the U-shaped plate away from the water tank is connected to an electric push rod for transmission, and the side of the electric push rod away from the U-shaped plate is fixedly connected to the outer wall of the mounting plate, and the middle parts of both ends of the roller shaft are fixedly connected to a transmission rod, and the end of the transmission rod closest to the water tank extends out of the outer wall of the mounting plate away from the roller shaft, and the end away from the roller shaft is fixedly connected to a transmission gear, and a sleeve is provided at the lower end of the transmission gear, and the side wall of the sleeve is horizontally slidably connected to the outer wall of the mounting plate.

[0008] As a further solution of the present invention: a rack is provided in the middle of the inner cavity of the shell, the lower end of the rack is rotatably connected to a symmetrical connecting rod, the lower end of the connecting rod is rotatably connected to the lower part of the inner cavity of the shell, and a baffle is provided on the side of the outer wall of the connecting rod close to the water tank, and the lower end of the baffle is fixedly connected to the bottom of the inner cavity of the shell.

[0009] As a further solution of the present invention: a fixed block is fixedly connected to the side of the lower end of the shell away from the water tank, an adjusting block is horizontally slidably connected to the lower end of the shell, the adjusting block is threadedly connected to a threaded rod at one end close to the fixed block, and the threaded rod is rotatably connected to the middle part of the fixed block at one end away from the adjusting block.

[0010] As a further solution of the present invention: the outer wall of the transmission rod is fixedly connected to a driven gear, the outer walls of the several driven gears are commonly connected to a chain, and the symmetrical mounting plates are commonly fixedly connected to one end close to the water tank with a connecting plate, and the upper end surface of the connecting plate coincides with the upper end surface of the belt.

[0011] As a further solution of the present invention: the upper end of the U-shaped plate is fixedly connected to a driven rod on one side close to the center of the belt, the middle of the end of the driven rod away from the water tank is horizontally slidably connected to the first push plate, the end of the driven rod away from the first push plate is rotatably connected to the second push plate, and the lower end of the first push plate is vertically slidably connected to the guide rod on one side close to the guide plate.

[0012] As a further solution of the present invention: the upper end of the mounting plate is fixedly connected to the guide plate on the side close to the water tank, the upper end of the guide plate is provided with a No. 2 groove on the side close to the belt, the No. 1 groove is provided on the side of the No. 2 groove away from the water tank, the No. 1 groove is provided with a guide groove on the end away from the No. 2 groove, and a guide block is provided at the connection between the guide groove and the No. 2 groove, the lower end of the guide block is fixedly connected to the side of the inner cavity of the No. 2 groove away from the No. 1 groove, and the outer wall of the guide plate slides with the No. 2 groove, the No. 1 groove and the guide groove.

[0013] As a further solution of the present invention: the detection mechanism includes a symmetrical bracket, and the top of the symmetrical bracket is commonly fixedly connected with a fixed plate, and a movable plate is provided below the fixed plate, and the movable plate is vertically slidably connected to the outer wall of the bracket, and the middle of the upper end of the fixed plate is transmission-connected with an electric telescopic push rod, the output end of the electric telescopic push rod passes through the fixed plate and is fixedly connected with a connecting block, the lower end of the connecting block is fixedly connected to the movable plate, and the middle of the upper end of the movable plate is fixedly connected with an air guide tube, and a supporting plate is provided below the movable plate, and the supporting plate is slidably connected to the bracket.

[0014] As a further solution of the present invention: a symmetrical clamping mechanism is provided on the upper end of the supporting plate, and the clamping mechanism includes a symmetrical mounting block, a splint is provided on the side of the mounting block close to the center position of the supporting plate, a sliding rod is fixedly connected to the middle of the end of the splint close to the mounting block, the outer wall of the sliding rod is slidably connected to the middle of the mounting block, a cross bar is fixedly connected to the end of the mounting block away from the splint, and a fixing rod is fixedly connected to the side of the cross bar away from the mounting block and close to the bracket.

[0015] As a further solution of the present invention: the fixed rod is an L-shaped rod, which is composed of a horizontal rod and a vertical rod. The horizontal rod is fixedly connected to the side of the cross rod close to the bracket, and the end of the horizontal rod away from the cross rod is fixedly connected to the vertical rod. The upper end of the vertical rod is vertically slidably connected to the adjustment plate, and the middle part of the lower end of the adjustment plate is fixedly connected to a traction rope. The side of the adjustment plate away from the fixed rod is fitted with the upper end of the movable plate, and the end of the traction rope away from the adjustment plate will pass through the middle of the vertical rod and the horizontal rod in sequence and be fixedly connected to the end of the sliding rod away from the splint.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By pushing the U-shaped plate to move horizontally back and forth, the valve located at the connection between the connecting plate and the belt is pushed onto the carrier plate through the first push plate. When the U-shaped plate is reset, it will push the rack to move and drive the belt to move toward the position of the connecting plate, thereby moving the new valve to the connection between the connecting plate and the belt. By turning the threaded rod, the distance between the adjusting block and the fixed block can be adjusted, so that the single movement distance of the belt is the same as the size of the valve. When the belt conveys valves of different sizes, it can ensure that the distance the belt moves each time is the same as the size of the valve, ensuring that the first push plate will only push a single valve for sealing detection at a time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of area A.

[0019] Figure 3 Schematic diagram of the structure of the driving mechanism of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the casing in the present invention.

[0021] Figure 5 It is a structural schematic diagram of the roller in the present invention.

[0022] Figure 6 It is a structural schematic diagram of the first push plate in the present invention.

[0023] Figure 7 Schematic diagram of the structure of the driven rod in the present invention.

[0024] Figure 8 It is a structural schematic diagram of the detection mechanism in the present invention.

[0025] Figure 9 It is a structural schematic diagram of the clamping mechanism in the present invention.

[0026] Figure 10 Schematic diagram of the structure of the fixing rod in the present invention.

[0027] In the figure: 1. bottom plate; 2. mounting plate; 3. belt; 4. water tank; 5. connecting plate; 6. bracket; 7. fixed plate; 8. movable plate; 9. bearing plate; 10. guide plate; 11. driven rod; 12. first push plate; 13. U-shaped plate; 14. guide groove; 15. No. 1 groove; 16. No. 2 groove; 17. guide block; 18. guide rod; 19. transmission gear; 20. transmission rod; 21. driven gear; 22. chain; 23. roller; 24. housing; 25. rack; 26. stop rod; 27. connecting rod; 28. adjusting block; 29. ​​threaded rod; 30. fixed block; 31. second push plate; 32. splint; 33. mounting block; 34. cross bar; 35. slide bar; 36. traction rope; 37. fixing rod; 38. adjusting plate; 39. connecting block; 40. air guide tube DETAILED DESCRIPTION

[0028] See also Figure 1-3In an embodiment of the present invention, a valve sealing detection device includes a base plate 1, a water trough 4 is fixedly connected to the middle part of the upper end of the base plate 1, a symmetrical mounting plate 2 is provided on one side of the water trough 4, and the symmetrical mounting plate 2 is directly rotatably connected to a plurality of rollers 23. The outer walls of the plurality of rollers 23 are jointly sleeved with a belt 3, a valve is placed on the upper end of the belt 3, and a detection mechanism for performing a sealing detection on the valve is provided on the upper part of the inner cavity of the water trough 4. A driving mechanism for driving the belt 3 to move is provided on the side of the outer wall of the mounting plate 2 close to the water trough 4, and the driving mechanism includes a U-shaped plate 13. When the U-shaped plate 13 is close to the position of the water trough 4, the belt 3 remains stationary. When the U-shaped plate 13 is away from the position of the water trough 4, the belt 3 drives the valve to move toward the direction of the water trough 4.

[0029] See also Figure 1-3 The middle part of the U-shaped plate 13 is connected to an electric telescopic push rod for transmission away from the water tank 4, and the electric telescopic push rod is fixedly connected to the outer wall of the mounting plate 2 on the side away from the U-shaped plate 13, that is, the electric telescopic push rod will push the U-shaped plate 13 close to or away from the position of the water tank 4, and the lower end of the U-shaped plate 13 is close to the side of the roller shaft 23 and fits the outer wall of the mounting plate 2. The middle part of both ends of the roller shaft 23 is fixedly connected to a transmission rod 20, and the transmission rod 20 closest to the position of the water tank 4 away from the roller shaft 23 extends out of the outer wall of the mounting plate 2, and its end away from the roller shaft 23 is fixedly connected to a transmission gear 19, and the lower end of the transmission gear 19 is provided with a sleeve 24, and the side wall of the sleeve 24 is horizontally slidably connected to the outer wall of the mounting plate 2, and the outer wall of the mounting plate 2 is provided with a slide groove, and the middle part of the outer wall of the sleeve 24 is fixedly connected to a slider, which is slidably connected in the slide groove, and the outer wall of the slider is elastically connected to the side wall of the inner cavity of the slide groove by a spring.

[0030] See also Figure 4The lower end of the connecting rod 27 is rotatably connected to the lower part of the inner cavity of the casing 24, and a stop rod 26 is provided on the side of the outer wall of the connecting rod 27 close to the water tank 4. The lower end of the stop rod 26 is fixedly connected to the bottom of the inner cavity of the casing 24, and the lower end of the rack 25 is elastically connected to the bottom of the inner cavity of the casing 24 by springs parallel to each other. The spring is inclined in the direction away from the water tank 4. When the casing 24 drives the rack 25 to move in the direction where the water tank 4 is located, when the rack 25 contacts the outer wall of the lower side of the transmission gear 19, the stop rod 26 does not hinder the rotation of the connecting rod 27, so the rack 25 will rotate in the direction away from the water tank 4 and retract into the inner cavity of the casing 24. After the rack 25 is separated from the transmission gear 19, it will be reset to its initial position under the elastic force of the spring and reconnect with the transmission gear again. The wheel 19 is meshed with each other, and the lower end of the housing 24 is fixedly connected to the side of the water tank 4 with a fixed block 30. The lower end of the housing 24 is horizontally slidably connected to the adjusting block 28. The adjusting block 28 is threadedly connected to a threaded rod 29 at one end close to the fixed block 30. The end of the threaded rod 29 away from the adjusting block 28 is rotatably connected to the middle of the fixed block 30. When the U-shaped plate 13 is reset away from the water tank 4, the lower end of the U-shaped plate 13 will gradually approach the adjusting block 28 and contact the end of the adjusting block 28 away from the fixed block 30, thereby pushing the adjusting block 28 to move, thereby driving the housing 24 and the rack 25 horizontally away from the position of the water tank 4. When the rack 25 is away from the water tank 4, the blocking rod 26 will block the connecting rod 27, thereby preventing the rack 25 from rotating toward the direction of the water tank 4 and shrinking into the inner cavity of the housing 24. During this process, the rack 25 will remain horizontal, thereby driving the transmission gear 19 to rotate.

[0031] See also Figure 5 When the transmission gear 19 rotates, it will drive the transmission rod 20 closest to the water tank 4 to rotate, and then drive the driven gear 21 on the outer wall of the transmission rod 20 to rotate. The outer walls of several driven gears 21 are jointly connected with a chain 22 for transmission, so that when the transmission gear 19 rotates, several driven gears 21 rotate synchronously, and then drive multiple rollers 23 to rotate synchronously, thereby driving the belt 3 to move horizontally to complete the transportation of the valve, and then drive the valve to continuously approach the position of the water tank 4. The symmetrical mounting plates 2 are fixedly connected with a connecting plate 5 at one end close to the water tank 4. The upper end surface of the connecting plate 5 coincides with the upper end surface of the belt 3. The valve can be transported to the connection between the connecting plate 5 and the belt 3 by moving the belt 3.

[0032] See also Figure 2 and Figure 6-7The upper end of the U-shaped plate 13 is fixedly connected to the side of the center position of the belt 3. The middle part of the end of the driven rod 11 away from the water tank 4 is horizontally slidably connected to the first push plate 12. The first push plate 12 and the driven rod 11 are elastically connected by a spring. The end of the driven rod 11 away from the first push plate 12 is rotatably connected to the second push plate 31. The end of the second push plate 31 close to the first push plate 12 is elastically connected to the side wall of the driven rod 11 by a spring. That is, when the second push plate 31 is subjected to a force toward the direction of the water tank 4, the second push plate 31 will move toward the direction of the water tank 4. When the second push plate 31 is moved away from the water tank 4 along with the driven rod 11, the second push plate 31 will rotate and will reset under the action of the spring. When the second push plate 31 is subjected to a force toward the direction of the first push plate 12, it will remain stationary. That is, when the valve is between the first push plate 12 and the second push plate 31, if the second push plate 31 moves away from the water tank 4 along with the driven rod 11, when the side of the second push plate 31 close to the first push plate 12 contacts the valve, it will rotate toward the water tank 4. When the side of the second push plate 31 away from the first push plate 12 contacts the valve, the driven rod 11 will drive the second push plate 31 to move toward the water tank 4, pushing the valve to move horizontally.

[0033] See also Figure 2 The upper end of the mounting plate 2 is fixedly connected to the guide plate 10 on the side near the water tank 4. The upper end of the guide plate 10 is provided with a second groove 16 on the side near the belt 3. The second groove 16 is provided with a first groove 15 on the side away from the water tank 4. The end of the first groove 15 away from the second groove 16 is provided with a guide groove 14. A guide block 17 is provided at the connection between the guide groove 14 and the second groove 16. The lower end of the guide block 17 is fixedly connected to the side of the inner cavity of the second groove 16 away from the first groove 15. The end of the guide block 17 close to the guide groove 14 is higher than the end of the guide block 17 close to the inner cavity of the second groove 16. The lower end of the first push plate 12 is vertically slidably connected to a guide rod 18 on the side near the guide plate 10. The end of the first push plate 12 close to the guide plate 10 is provided with a groove. The outer wall of the guide rod 18 is slidably connected to the inner cavity of the groove, and the top of the guide rod 18 is elastically connected to the top of the inner cavity of the groove by a spring.

[0034] See also Figure 1 and Figure 6When the U-shaped plate 13 drives the driven rod 11 and the first push plate 12 to move back and forth horizontally, due to the elastic force of the spring, when the U-shaped plate 13 is in the initial position, the guide rod 18 is located at the connection between the No. 1 groove 15 and the No. 2 groove 16. When the U-shaped plate 13 is close to the water tank 4, it will push the valve from the connection between the belt 3 and the connecting plate 5 toward the location of the water tank 4 through the driven rod 11 and the first push plate 12. In this process, the guide rod 18 will slide along the No. 2 groove 16 and pass over the guide block 17. When the U-shaped plate 13 drives the driven rod 11 and the first push plate 12 During resetting, when the guide rod 18 enters the connection between the guide groove 14 and the second groove 16, the guide block 17 will block the guide rod 18 so that the guide rod 18 enters the guide groove 14. At this time, the first push plate 12 will move toward the direction of the U-shaped plate 13, so that the side of the first push plate 12 away from the second push plate 31 will not contact the valve. When the guide rod 18 moves to the connection between the guide groove 14 and the first groove 15, the first push plate 12 is reset under the action of elastic force, and the guide rod 18 will also return to the connection between the first groove 15 and the second groove 16.

[0035] See also Figure 8 The detection mechanism includes a symmetrical bracket 6, the top of the symmetrical bracket 6 is fixedly connected to a fixed plate 7, a movable plate 8 is provided below the fixed plate 7, the movable plate 8 is vertically slidably connected to the outer wall of the bracket 6, the middle of the upper end of the fixed plate 7 is transmission-connected to an electric telescopic push rod, the output end of the electric telescopic push rod passes through the fixed plate 7 and is fixedly connected to a connecting block 39, the lower end of the connecting block 39 is fixedly connected to the movable plate 8, the middle of the upper end of the movable plate 8 is fixedly connected to an air guide tube 40, and the upper end of the air guide tube 40 is fixedly connected to Air pump, the air pump is fixedly connected to the movable plate 8, a supporting plate 9 is provided under the movable plate 8, the supporting plate 9 is slidably connected to the bracket 6, the lower end of the supporting plate 9 is elastically connected to the bottom of the inner cavity of the water tank 4 by a spring, and the upper end of the supporting plate 9 is close to the side of the connecting plate 5 and is provided with a notch adapted to the connecting plate 5, and the end of the connecting plate 5 away from the mounting plate 2 is fitted with the notch, so that the connecting plate 5 will block and limit the supporting plate 9, so that the upper end surface of the supporting plate 9 and the upper end surface of the connecting plate 5 are in the same horizontal plane.

[0036] See also Figure 9-10The upper end of the supporting plate 9 is provided with a symmetrical clamping mechanism, which includes a symmetrical mounting block 33. A splint 32 is provided on one side of the mounting block 33 close to the center position of the supporting plate 9. The middle part of one end of the splint 32 close to the mounting block 33 is fixedly connected to a slide bar 35. The outer wall of the slide bar 35 is slidably connected to the middle part of the mounting block 33. The outer wall of the slide bar 35 is sleeved with a spring, which is located between the splint 32 and the mounting block 33. The end of the mounting block 33 away from the splint 32 is fixedly connected to a cross bar 34. The cross bar 34 is fixedly connected to a fixing rod 37 on the side away from the mounting block 33 and close to the bracket 6. The fixing rod 37 is an L-shaped rod, composed of a horizontal rod and a vertical rod. The horizontal rod is fixedly connected to the side of the cross bar 34 close to the bracket 6. The end of the rod away from the cross bar 34 is fixedly connected to the vertical rod, and the upper end of the vertical rod is vertically slidably connected to the adjustment plate 38. The adjusting plate 38 and the vertical rod are slidably connected by a symmetrical balance rod. The middle part of the lower end of the adjusting plate 38 is fixedly connected to the traction rope 36, and the side of the adjusting plate 38 away from the fixed rod 37 is in contact with the upper end of the movable plate 8. The end of the traction rope 36 away from the adjusting plate 38 will pass through the middle of the vertical rod and the horizontal rod in turn and be fixedly connected to the end of the sliding rod 35 away from the splint 32. When the electric telescopic push rod pushes the movable plate 8 downward, under the action of elastic force, the splint 32 will be pushed to the center position of the supporting plate 9, and the splint 32 will drive the sliding rod 35 to move synchronously, and then pull the adjusting plate 38 downward through the traction rope 36.

[0037] See also Figure 3 When the first push plate 12 pushes the valve to move to the upper end surface of the supporting plate 9 through the connecting plate 5, the side of the U-shaped plate 13 close to the water tank 4 will gradually move to the vertical rod close to the position of the connecting plate 5, that is, the U-shaped plate 13 can only move to the position close to the outer wall of the vertical rod and will not contact the outer wall of the vertical rod. Therefore, the first push plate 12 can only push the valve to a position close to the middle of the upper end of the supporting plate 9, and in the process of the U-shaped plate 13 driving the first push plate 12 to reset, the side of the second push plate 31 close to the first push plate 12 will contact the valve located at the upper end of the supporting plate 9. At this time, the second push plate 31 will rotate in the direction away from the first push plate 12 without pushing the valve to move. After the movable plate 8 moves downward, the splint 32 will automatically approach the center position of the supporting plate 9 and contact the outer wall of the valve, thereby pushing the valve to be centered on the upper end surface of the supporting plate 9, so that the middle part of the upper end of the valve and the air guide tube 40 are located in the same vertical plane, and after the movable plate 8 moves downward, the lower end surface of the movable plate 8 is in close contact with the upper end surface of the valve, and the lower end surface of the valve is in close contact with the supporting plate 9, both of which clamp and seal the valve in the vertical direction, and push the movable plate 8 and the supporting plate 9 to move downward synchronously into the inner cavity of the water tank 4. The inner cavity of the water tank 4 is filled with water, and then the inner cavity of the valve is inflated through the air pump and the air guide tube 40, and the sealing of the valve is judged by observing whether there are bubbles in the water.

[0038] After the test is completed, when the movable plate 8 and the supporting plate 9 move up and return to their initial positions, the supporting plate 9 will not continue to move up after contacting the connecting plate 5, and the movable plate 8 will contact the adjusting plate 38 again to push it up, so that the adjusting plate 38 pulls the traction rope 36 to drive the symmetrical clamping plates 32 away from the valve synchronously, releasing the clamping and positioning effect of the valve, and in the process of the U-shaped plate 13 pushing the valve to the upper end of the supporting plate 9 again, the end of the second push plate 31 away from the first push plate 12 will contact the valve located at the upper end of the supporting plate 9, thereby pushing the valve in the middle of the upper end of the supporting plate 9 to move horizontally, thereby moving away from the position of the supporting plate 9 and moving to the conveyor belt through the connecting plate 5 away from the mounting plate 2, and the new untested valve will be located near the center of the supporting plate 9 again, and centered under the action of the clamping plate 32 for sealing detection.

[0039] See also Figure 4 When the U-shaped plate 13 approaches the water tank 4, the valve at the connection between the belt 3 and the connecting plate 5 is pushed to move onto the carrying plate 9. During the resetting process of the U-shaped plate 13, it contacts the adjusting block 28 to push the rack 25 to drive the transmission gear 19 to rotate, thereby driving the belt 3 to move and drive the new valve to move to the connection between the belt 3 and the connecting plate 5. Since the horizontal reciprocating distance of the U-shaped plate 13 is the same, the distance by which the rack 25 is pushed by the U-shaped plate 13 can be changed by adjusting the distance between the adjusting block 28 and the fixed block 30. That is, when the distance between the adjusting block 28 and the fixed block 30 is reduced, the U-shaped plate 13 will contact the adjusting block 28 later during the resetting process, thereby shortening the distance by which the rack 25 is pushed by the U-shaped plate 13, thereby reducing the moving distance of the belt 3. When the U-shaped plate 13 is large, it will contact the adjusting block 28 earlier during the resetting process, thereby extending the distance that the rack 25 is pushed by the U-shaped plate 13, thereby increasing the moving distance of the belt 3. By adjusting the length of the adjusting block 28 to the fixed block 30, the distance that the belt 3 moves each time can be made the same as the diameter of the valve. For valves of different sizes, by rotating the threaded rod 29 to drive the adjusting block 28 to move horizontally, the distance that the belt 3 moves each time can be made the same as the size of the valve. Therefore, when testing valves of different sizes, the distance that the belt 3 moves in a single time will be the same as the size of the valve. Therefore, when the valve size changes, when conveying valves of smaller size, excessive moving distance will cause multiple valves to accumulate at the connection between the connecting plate 5 and the belt 3, thereby affecting the sealing detection of a single valve.

Claims

1. A valve sealing detection device, comprising a bottom plate, characterized in that: A water trough is fixedly connected to the middle of the upper end of the bottom plate, and a symmetrical mounting plate is provided on one side of the water trough. The symmetrical mounting plate is directly rotatably connected to a plurality of rollers, and a belt is commonly sleeved on the outer walls of the plurality of rollers. A valve is placed on the upper end of the belt, and a detection mechanism for performing a sealing detection on the valve is provided on the upper part of the inner cavity of the water trough. A driving mechanism for driving the belt to move is provided on the side of the outer wall of the mounting plate close to the water trough, and the driving mechanism includes a U-shaped plate. When the U-shaped plate is close to the position of the water trough, the belt remains stationary. When the U-shaped plate is away from the position of the water trough, the belt drives the valve to move toward the direction of the water trough.

2. A valve sealing detection device according to claim 1, characterized in that: The middle part of the side of the U-shaped plate away from the water tank is connected to an electric push rod for transmission, and the side of the electric push rod away from the U-shaped plate is fixedly connected to the outer wall of the mounting plate, and the middle parts of both ends of the roller shaft are fixedly connected to a transmission rod, and the end of the transmission rod closest to the water tank away from the roller shaft extends out of the outer wall of the mounting plate, and the end away from the roller shaft is fixedly connected to a transmission gear, and a sleeve is provided at the lower end of the transmission gear, and the side wall of the sleeve is horizontally slidably connected to the outer wall of the mounting plate.

3. A valve sealing detection device according to claim 2, characterized in that: A rack is provided in the middle of the inner cavity of the shell, and the lower end of the rack is rotatably connected to a symmetrical connecting rod, the lower end of the connecting rod is rotatably connected to the lower part of the inner cavity of the shell, and a baffle is provided on the side of the outer wall of the connecting rod close to the water tank, and the lower end of the baffle is fixedly connected to the bottom of the inner cavity of the shell.

4. A valve sealing detection device according to claim 2, characterized in that: The lower end of the shell is fixedly connected to a fixed block on the side away from the water tank, the lower end of the shell is horizontally slidably connected to an adjusting block, the adjusting block is threadedly connected to a threaded rod at one end close to the fixed block, and the threaded rod is rotatably connected to the middle of the fixed block at one end away from the adjusting block.

5. A valve sealing detection device according to claim 3, characterized in that: The outer wall of the transmission rod is fixedly connected to a driven gear, the outer walls of the several driven gears are commonly connected to a chain, and a connecting plate is commonly fixedly connected between the ends of the symmetrical mounting plates close to the water tank, and the upper end surface of the connecting plate coincides with the upper end surface of the belt.

6. A valve sealing detection device according to claim 5, characterized in that: The upper end of the U-shaped plate is fixedly connected to a driven rod on one side close to the center of the belt, and the middle of the end of the driven rod away from the water tank is horizontally slidably connected to the first push plate, and the end of the driven rod away from the first push plate is rotatably connected to the second push plate, and the lower end of the first push plate is vertically slidably connected to the guide rod on one side close to the guide plate.

7. A valve sealing detection device according to claim 6, characterized in that: The upper end of the mounting plate is fixedly connected to the guide plate on the side close to the water tank, and the upper end of the guide plate is provided with a No. 2 groove on the side close to the belt, and the No. 1 groove is provided on the side of the No. 2 groove away from the water tank, and the No. 1 groove is provided with a guide groove on the end away from the No. 2 groove. A guide block is provided at the connection between the guide groove and the No. 2 groove, and the lower end of the guide block is fixedly connected to the side of the inner cavity of the No. 2 groove away from the No. 1 groove. The outer wall of the guide plate slides with the No. 2 groove, the No. 1 groove and the guide groove.

8. A valve sealing detection device according to claim 1, characterized in that: The detection mechanism includes symmetrical brackets, and the tops of the brackets are symmetrically fixedly connected to a fixed plate. A movable plate is provided below the fixed plate, and the movable plate is vertically slidably connected to the outer wall of the bracket. The middle part of the upper end of the fixed plate is transmission-connected to an electric telescopic push rod, and the output end of the electric telescopic push rod passes through the fixed plate and is fixedly connected to a connecting block. The lower end of the connecting block is fixedly connected to the movable plate, and the middle part of the upper end of the movable plate is fixedly connected to an air guide tube. A supporting plate is provided below the movable plate, and the supporting plate is slidably connected to the bracket.

9. A valve sealing detection device according to claim 8, characterized in that: A symmetrical clamping mechanism is provided at the upper end of the supporting plate, and the clamping mechanism includes a symmetrical mounting block, a splint is provided on one side of the mounting block close to the center position of the supporting plate, a sliding rod is fixedly connected to the middle of the end of the splint close to the mounting block, the outer wall of the sliding rod is slidably connected to the middle of the mounting block, a cross bar is fixedly connected to the end of the mounting block away from the splint, and a fixing rod is fixedly connected to the side of the cross bar away from the mounting block and close to the bracket.

10. A valve sealing detection device according to claim 9, characterized in that: The fixed rod is an L-shaped rod, which is composed of a horizontal rod and a vertical rod. The horizontal rod is fixedly connected to the side of the cross rod close to the bracket, and the end of the horizontal rod away from the cross rod is fixedly connected to the vertical rod. The upper end of the vertical rod is vertically slidably connected to the adjustment plate, and the middle part of the lower end of the adjustment plate is fixedly connected to the traction rope. The side of the adjustment plate away from the fixed rod is fitted with the upper end of the movable plate, and the end of the traction rope away from the adjustment plate will pass through the middle of the vertical rod and the horizontal rod in sequence and be fixedly connected to the end of the sliding rod away from the splint.

Images