A kind of cylinder class spare water bath air tightness detection equipment

Abstract

The application discloses a kind of cylinder class spare water bath air tightness detection equipment, it includes frame, support frame is slidably connected on the frame, mobile piece is equipped on the frame, support frame lower end portion is fixed with support plate, and support frame is vertically slidably connected with pressing plate, support frame is equipped with lifting piece, lifting piece output end is connected with pressing plate, frame lower end portion is fixed with water tank opposite with support plate, support frame is vertically slidably connected with lifting plate, and is equipped with the drive piece one for moving lifting plate, lifting plate is equipped with cleaning ring, cleaning ring is sleeved on the outside of pressing plate, cleaning ring is equipped with several arc plates along radial direction, all arc plates are slidably connected with cleaning ring along radial direction, lifting plate is equipped with opening and closing piece for moving all arc plates, the side of arc plate towards the center of cleaning ring is equipped with cleaning cloth, support frame is further equipped with rotary assembly for driving pressing plate to rotate, the application has the effect of improving detection convenience.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing and testing technology, and in particular to a water bath airtightness testing device for cylindrical parts. Background Technology

[0002] Currently, cylindrical components are widely used in the petroleum, chemical, and aerospace industries. Their airtightness is a key indicator to ensure the safe operation of equipment. Traditional testing methods include air pressure testing, water bath testing, and helium mass spectrometry leak detection.

[0003] The pressure method involves filling the cylinder with compressed air, closing the filling channel, and monitoring the pressure changes inside the cylinder. If pressure fluctuations occur, it indicates a leak. The helium mass spectrometry leak detection method involves placing the cylinder in a vacuum environment, filling it with helium, and using helium as a tracer gas. Helium is then detected outside the cylinder; if detected, it indicates a leak. The water bath method involves sealing both ends of the cylinder and immersing it in water. Observing for bubbling indicates a leak.

[0004] Regarding the aforementioned technologies, the gas pressure method is greatly affected by ambient temperature during detection, which can easily interfere with the detection results. The helium mass spectrometry method has high sensitivity, but the detection equipment is relatively expensive. The water bath method has a lower cost and is less susceptible to interference from environmental factors, but after the cylinder is tested, moisture remains on the outside of the cylinder, which can easily affect the subsequent testing or storage of the cylinder. Therefore, after the test, it is necessary to wipe off the residual liquid on the outside of the cylinder, which affects the convenience of the test. Summary of the Invention

[0005] To improve testing convenience, this application provides a water bath airtightness testing device for cylindrical components.

[0006] A water bath airtightness testing device for cylindrical components includes a frame, a vertically sliding support frame on the frame, and a moving component for moving the support frame. A support plate is fixed at the lower end of the support frame, and a pressure plate is slidably connected to the support frame vertically, with the pressure plate located directly above the support plate. The support frame has a lifting component for moving the pressure plate. A water tank is fixed at the lower end of the frame, directly opposite the support plate. A lifting plate is slidably connected to the support frame vertically and has a driving component for moving the lifting plate. The lifting plate has a cleaning ring, which is sleeved on the outside of the pressure plate, and the inner diameter of the cleaning ring is larger than the diameter of the pressure plate. Several arc-shaped plates are radially arranged on the cleaning ring, and all arc-shaped plates are slidably connected to the cleaning ring radially. The lifting plate has an opening and closing component for moving all the arc-shaped plates. A cleaning cloth is provided on the side of the arc-shaped plates facing the center of the cleaning ring. The support frame also has a rotating component for rotating the pressure plate. When the pressure plate rotates, it drives the cylindrical component under test to rotate.

[0007] By adopting the above technical solution, under the support of the frame, the lifting component drives the pressure plate to move downward, so that the pressure plate and the support plate cooperate to press and fix the cylinder, and at the same time seal the two open ends of the cylinder. The moving component drives the support frame to move vertically, and the support frame drives the cylinder to be immersed in the water tank. If no air bubbles are generated in the water tank, it indicates that the cylinder has good airtightness. Otherwise, it indicates that there is a leakage point on the cylinder wall. The moving component drives the support frame to move the cylinder out of the water tank. The opening and closing component drives the arc plate to approach the cylinder radially. The arc plate drives the cleaning cloth to approach the cylinder and contact the cylinder wall. The lifting component drives the lifting plate to move vertically. The lifting plate drives the cleaning ring to move vertically. The cleaning ring drives the arc plate to move vertically, so that the arc plate wipes the cylinder wall vertically. The rotating component drives the pressure plate to rotate along its own axis, so that the cylinder rotates along its own axis, so that the arc plate fully contacts and wipes the outer wall of the cylinder. There is no need for the operator to wipe the outer wall of the cylinder separately, which is beneficial to improving the convenience of testing.

[0008] Optionally, the rotating assembly includes a disc, a splined shaft, a second driving component, and a gear. The disc is rotatably connected to the support plate and located directly below the pressure plate. The diameter of the disc is larger than the diameter of the cylinder being measured. The splined shaft is coaxially fixed to the upper end of the pressure plate and is rotatably connected to the output shaft of the lifting component. The axis of rotation coincides with the axis of the disc. The gear is rotatably connected to the support frame and meshes with the splined shaft. The second driving component is set on the support frame and is used to drive the gear to rotate.

[0009] By adopting the above technical solution, the support plate seals the cylinder wall through the disc, while the disc and the pressure plate cooperate to clean both ends of the cylinder. The second drive component drives the gear to rotate, and the gear drives the spline shaft to rotate along its own axis. The spline shaft drives the pressure plate to rotate along its own axis. During the movement of the lifting component, the spline shaft is always engaged with the gear, so that the pressure plate rotates continuously and drives the cylinder to rotate, making full contact with the cleaning cloth, which is beneficial to improving the wiping effect of residual liquid on the cylinder wall.

[0010] Optionally, the upper end of the disc and the lower end of the pressure plate are both provided with limit rings on the same axis, and the test cylinder is located inside the limit ring and fits against the inner wall of the limit ring.

[0011] By adopting the above technical solution, both the disc and the pressure plate limit the radial displacement of the cylinder through the limiting ring, reducing the probability of the cylinder shaking during the inspection and wiping process, which helps to improve the installation stability of the cylinder.

[0012] Optionally, the opening and closing component includes several guide shafts, a drive ring, and a power component. The drive ring is located above all the arc-shaped plates and is rotatably connected to the lifting plate. The drive ring is coaxial with the cleaning ring. The guide shafts correspond one-to-one with the arc-shaped plates and are fixed above the corresponding arc-shaped plates. The lower end of the drive ring has several guide grooves that correspond one-to-one with the guide shafts. The guide grooves are arranged in an involute pattern along the circumference of the drive ring. The guide shafts are located in the guide grooves and are slidably connected to the inner wall of the guide grooves. When the drive ring rotates, it pushes the guide shafts to move radially along the cleaning ring through the inner wall of the guide grooves. The power component is located on the lifting plate and is used to drive the drive ring to rotate.

[0013] By adopting the above technical solution, under the support of the lifting plate, the driving component drives the driving ring to rotate. During the rotation of the driving ring, the guide shaft is pushed to move radially along the cleaning ring through the inner wall of the guide groove. The guide groove guides and limits the movement of the guide shaft. Several guide grooves and guide shafts cooperate to make the guide shaft drive the arc plate to move radially, so that the arc plate is always in contact with the outer wall of the cylinder of different diameters. This makes the cleaning contact with the outer wall of the cylinder of different diameters and wipe it, which is beneficial to improve the applicability of the device.

[0014] Optionally, the cleaning cloth is annular, and the arc plate is provided with limiting rods on both sides along the transverse direction. An opening is left between the limiting rod and the arc plate for the cleaning cloth to pass through. The cleaning cloth passes through all the openings in sequence and is close to the side wall of the arc plate facing the cylinder under the action of the limiting rod. The lifting plate is provided with a rotating component for driving the cleaning cloth to rotate.

[0015] By adopting the above technical solution, the lifting plate supports the rotating component, the rotating component drives the cleaning cloth to rotate, the arc plate limits and supports the cleaning cloth through the opening, and the two limiting rods guide and limit the cleaning cloth, so that the cleaning cloth always remains taut and fits against the inner wall of the arc plate, reducing the probability of the cleaning cloth deforming and not fitting against the cylinder wall and the arc plate, which is conducive to improving the wiping effect of the cleaning cloth.

[0016] Optionally, the rotating component includes a mounting base, a rotary motor, an elastic element, and a drive wheel. The mounting base is slidably connected to the lifting plate along the radial direction of the cleaning ring. The elastic element is disposed between the mounting base and the lifting plate and pushes the mounting base away from the axis of the cleaning ring in its natural state. The drive wheel is rotatably connected to the mounting base and is located inside the cleaning cloth and is tumbledly connected to the cleaning cloth. Under the support of the arc plate, the drive wheel rotates, causing the cleaning cloth to rotate circumferentially. The rotary motor is fixed on the mounting base and is used to drive the drive wheel to rotate.

[0017] By adopting the above technical solution, under the support of the lifting plate, the mounting base supports the rotary motor, the rotary motor drives the drive wheel to rotate, and the drive wheel drives the cleaning cloth to rotate. When the arc plate wipes the cylinders of different diameters, the cleaning cloth contacts the outer wall of the cylinder with a larger area, causing the mounting base to move closer to the cleaning ring axis. The spring pushes the mounting base away from the cleaning ring axis, keeping the cleaning cloth taut and ensuring full contact with the outer wall of the cylinder, which helps to improve the working stability of the cleaning cloth.

[0018] Optionally, the cleaning ring is provided with a drying nozzle, which is located outside the cleaning ring and directly opposite the cleaning cloth. When the drying nozzle is working, it sprays hot air onto the cleaning cloth.

[0019] By adopting the above technical solution, the cleaning ring supports and fixes the drying nozzle. During the rotation of the cleaning cloth, the drying nozzle dries the cleaning cloth by spraying hot air onto it, so that the cleaning cloth can continuously wipe the outer wall of the cylinder, which helps to improve the wiping efficiency of the cleaning cloth.

[0020] Optionally, the lower end of the cleaning ring is also provided with an air jet head, the air jet head is directed toward the axis of the cleaning ring, and is arranged radially from top to bottom along the cleaning ring.

[0021] By adopting the above technical solution, the cleaning ring supports and fixes the jet head, and several jet heads work together to blow air onto the outer wall of the cylinder, further reducing the probability of residual liquid on the outer wall of the cylinder and improving the convenience of detection.

[0022] In summary, this application includes at least one of the following beneficial technical effects: Supported by the frame, the lifting component drives the pressure plate downward, so that the pressure plate and the support plate cooperate to press and fix the cylinder, and at the same time seal the two open ends of the cylinder. The moving component drives the support frame to move vertically, and the support frame drives the cylinder to be immersed in the water tank. If no air bubbles are generated in the water tank, it indicates that the cylinder has good airtightness. Otherwise, it indicates that there is a leakage point on the cylinder wall. The moving component drives the support frame to move the cylinder out of the water tank. The opening and closing component drives the arc plate to approach the cylinder radially. The arc plate drives the cleaning cloth to approach the cylinder and contact the cylinder wall. The lifting component drives the lifting plate to move vertically. The lifting plate drives the cleaning ring to move vertically. The cleaning ring drives the arc plate to move vertically, so that the arc plate wipes the cylinder wall vertically. The rotating component drives the pressure plate to rotate along its own axis, so that the cylinder rotates along its own axis, so that the arc plate fully contacts and wipes the outer wall of the cylinder. There is no need for the operator to wipe the outer wall of the cylinder separately, which helps to improve the convenience of testing. The support plate seals the cylinder wall with a disc, while the disc and the pressure plate work together to clean both ends of the cylinder. The drive component drives the gear to rotate, which in turn drives the spline shaft to rotate along its own axis. The spline shaft then drives the pressure plate to rotate along its own axis. During the movement of the lifting component, the spline shaft is always engaged with the gear, causing the pressure plate to rotate continuously and drive the cylinder to rotate, making full contact with the cleaning cloth, which helps to improve the wiping effect of residual liquid on the cylinder wall. Both the disc and the pressure plate limit the radial displacement of the cylinder by limiting rings, reducing the probability of the cylinder shaking during inspection and wiping, which helps to improve the installation stability of the cylinder. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a water bath airtightness testing device for cylindrical components.

[0024] Figure 2 This is a schematic diagram designed to highlight the structure of the rotating component.

[0025] Figure 3 This is a schematic diagram designed to highlight the structure of the rotating component.

[0026] Figure 4 This is a schematic diagram designed to highlight the curved plate structure.

[0027] Figure 5 This is a schematic diagram designed to highlight the structure of the opening and closing mechanism.

[0028] Figure 6 This is a schematic diagram designed to highlight the location of the guide groove.

[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Moving part; 12. Water tank; 2. Support frame; 21. Support plate; 22. Pressure plate; 23. Lifting part; 24. Drive component one; 3. Lifting plate; 31. Rotating part; 311. Mounting base; 312. Rotary motor; 313. Elastic part; 314. Drive wheel; 4. Cleaning ring; 41. Arc plate; 42. Opening and closing part; 421. Guide shaft; 422. Drive ring; 423. Power component; 424. Guide groove; 43. Cleaning cloth; 44. Limiting rod; 45. Opening; 46. Drying nozzle; 47. Air jet head; 5. Rotating assembly; 51. Disc; 511. Limiting ring; 52. Splined shaft; 53. Drive component two; 54. Gear; 6. Cylinder. Detailed Implementation

[0030] The present application will be further described in detail below with reference to all the accompanying drawings.

[0031] This application discloses a water bath airtightness testing device for cylindrical components.

[0032] Reference Figure 1 and Figure 2 A water bath airtightness testing device for cylindrical components includes a frame 1, a support frame 2 slidably connected to the frame 1 along its vertical direction, and a moving component 11 for moving the support frame 2, which can be a cylinder. The output end of the cylinder is fixedly connected to the support frame 2 and drives the support frame 2 to move vertically. A water tank 12 is installed at the lower end of the support frame 2, directly opposite the support frame 2. A support plate 21 is installed at the lower end of the support frame 2, and a pressure plate 22 is slidably connected vertically above the support plate 21. A lifting component 23 is provided on the support frame 2, which drives the pressure plate 22 to move vertically. A cylindrical component 6 is placed between the pressure plate 22 and the support plate 21. The pressure plate 22 and the support plate 21 cooperate to support the cylindrical component 6 and seal the open ends of the cylindrical component 6. The moving part 11 drives the support frame 2 to move down, and the support frame 2 drives the cylinder 6 to be immersed in the water tank 12. The operator judges the airtightness of the cylinder 6 by observing whether there are air bubbles in the water tank 12. If there are no air bubbles in the water tank 12, it means that the cylinder 6 is airtight. Otherwise, it means that there is a leak in the cylinder 6.

[0033] Reference Figure 3 and Figure 4 The support frame 2 is vertically slidably connected to the lifting plate 3, and the support frame 2 is equipped with a drive component 24 (see reference). Figure 1 ), Drive component 124 (reference) Figure 1 The lifting plate 3 moves vertically, and a cleaning ring 4 is installed on the lifting plate 3. The cleaning ring 4 is coaxially arranged with the pressure plate 22, and the inner diameter of the cleaning ring 4 is larger than the outer diameter of the pressure plate 22. The lifting plate 3 supports and fixes the cleaning ring 4. Multiple arc-shaped plates 41 are slidably connected to the inner wall of the cleaning ring 4 in the radial direction.

[0034] refer to Figure 2 and Figure 3 A rotating assembly 5 is installed on the support frame 2. The rotating assembly 5 includes a disc 51, a splined shaft 52, a second driving component 53, and a gear 54. The disc 51 is located on the support plate 21 and is rotatably connected to the support plate 21. The disc 51 is directly opposite the pressure plate 22. The support plate 21 supports the disc 51 and contacts the cylinder 6 through the disc 51. The splined shaft 52 is fixedly installed above the pressure plate 22 and is rotatably connected to the output shaft of the lifting component 23. The gear 54 is rotatably connected to the lower end of the support frame 2 and meshes with the splined shaft 52. The second driving component 53 is fixedly installed on the upper end of the support frame 2. The second driving component 53 can be a motor. The output shaft of the second driving component 53 is coaxially fixedly connected to the gear 54. The second driving component 53 drives the gear 54 to rotate. The gear 54 drives the splined shaft to rotate along its own axis. The splined shaft 52 drives the pressure plate 22 to rotate along its own axis. The pressure plate 22 and the disc 51 cooperate to drive the cylinder 6 to rotate.

[0035] refer to Figure 4 and Figure 5The lifting plate 3 is equipped with an opening and closing component 42 for driving the arc plate 41 closer to or away from the axis of the cleaning ring 4, and a rotating component 31 for driving the cleaning cloth 43 to rotate. The opening and closing component 42 includes multiple guide shafts 421, a drive ring 422, and a power component 423. The power component 423 can be a worm gear, which is rotatably connected to the lifting plate 3. A motor is fixedly installed on the lifting plate 3, and the output end of the motor is coaxially fixedly connected to the worm gear. The drive ring 422 is coaxially arranged with the cleaning ring 4 and located above the cleaning ring 4. The drive ring 422 is rotatably connected to the lifting plate 3, and the lifting plate 3 supports the drive ring 422. The worm gear meshes with the drive ring 422. When the motor drives the worm gear to rotate along its own axis, the worm gear drives the drive ring 422 to rotate along its own axis.

[0036] refer to Figure 5 and Figure 6 The guide shaft 421 is fixedly installed on the upper end of the arc plate 41. The arc plate 41 supports and fixes the guide shaft 421. The lower end face of the drive ring 422 is provided with a plurality of guide grooves 424 corresponding to the guide shaft 421. The guide grooves 424 are arranged in an involute shape along the circumference of the drive ring 422. The guide shaft 421 is inserted into the guide groove 424 and is slidably connected to the inner wall of the guide groove 424. When the drive ring 422 rotates, it pushes the guide shaft 421 to move through the inner wall of the guide groove 424, thereby pushing the arc plate 41 to move radially along the cleaning ring 4.

[0037] Reference Figure 1 and Figure 4 Limiting rods 44 are installed on both sides of the arc-shaped plate 41 along its length, forming an opening 45 between the limiting rods 44 and the arc-shaped plate 41. A cleaning cloth 43 is placed inside the opening 45. The cleaning cloth 43 passes through the opening 45 sequentially and slides against the inner wall of the opening 45, making the cleaning cloth ring-shaped. The two limiting rods 44 work together to keep the cleaning cloth 43 in close contact with the inner wall of the arc-shaped plate 41, improving the installation stability of the cleaning cloth 43. When the arc-shaped plate 41 moves radially along the cleaning ring 4, it drives the cleaning cloth 43 to approach the cylinders 6 of different diameters and to come into contact with the outer wall of the cylinders 6, thereby wiping the outer walls of the cylinders 6 of different diameters, which helps to improve the applicability of the device. During the wiping process, the cylinders 6 always rotate along their own axis, so that the cleaning cloth 43 has full contact with the outer wall of the cylinders 6, and the cleaning cloth 43 thoroughly wipes away the moisture on the outer wall of the cylinders 6, further reducing the probability of residual liquid on the outer wall of the cylinders 6.

[0038] refer to Figure 4 and Figure 5The rotating component 31 includes a mounting base 311, a rotary motor 312, an elastic element 313, and a drive wheel 314. The mounting base 311 is slidably connected to the lifting plate 3 along the radial direction of the cleaning ring 4. The elastic element 313 is installed between the mounting base 311 and the lifting plate 3. The elastic element 313 can be a spring, which in its natural state tends to push the mounting base 311 away from the axis of the cleaning ring 4. The drive wheel 314 is rotatably connected to the mounting base 311. The cleaning cloth 43 is sleeved on the outside of the drive wheel 314 and is rollably connected to the drive wheel 314. Under the push of the spring, the mounting base 311 drives the drive wheel 314 away from the axis of the cleaning ring 4, so that the cleaning cloth 43 always remains taut when wiping the cylinders 6 of different diameters and always adheres to the inner wall of the arc plate 41. When the arc plate 41 moves, the cleaning cloth 43 and the cylinders 6 (see reference) Figure 1 The outer wall is adhered to, which improves the installation stability of the cleaning cloth 43.

[0039] refer to Figure 5 and Figure 6 The rotary motor 312 is fixedly mounted on the mounting base 311 and coaxially connected to the drive wheel 314. When the drive wheel 314 rotates, it drives the cleaning cloth 43 to rotate. The cleaning cloth 43 rotates in the opposite direction to the cylinder, further ensuring that the cleaning cloth 43 makes full contact with the outer wall of the cylinder for wiping, which is beneficial to improving the wiping effect of the cleaning cloth 43. Two drying nozzles 46 are installed on the cleaning ring 4 near the drive wheel 314. The two drying nozzles 46 are arranged opposite each other. The cleaning cloth 43 passes between the two drying nozzles 46. The cleaning ring 4 supports the drying nozzles 46. When the drying nozzles 46 are working, they spray hot air onto the cleaning cloth 43, continuously drying the cleaning cloth 43 during its rotation, accelerating the evaporation efficiency of the liquid in the cleaning cloth 43, so that the cleaning cloth 43 can continuously penetrate the outer wall of the cylinder 6, which is beneficial to improving the wiping efficiency of the cleaning cloth 43.

[0040] refer to Figure 5 and Figure 6 Multiple jet heads 47 are circumferentially mounted on the lower end of the cleaning ring 4. All jet heads 47 face the axis of the cleaning ring 4 and are inclined downwards towards the axis of the cleaning ring 4. The cleaning ring 4 supports and fixes the jet heads 47. The multiple jet heads 47 work together to support the cylinder 6 (reference). Figure 1 Air is blown onto the outer wall to raise the cylinder 6 (reference). Figure 1 The evaporation efficiency of the liquid on the outer wall is improved, thereby increasing the efficiency of the device in removing liquid.

[0041] refer to Figure 1 and Figure 2Limiting rings 511 are installed on the sides of the disc 51 and the pressure plate 22 that are close to each other. Both ends of the cylinder 6 are located inside the limiting rings 511. The disc 51 and the pressure plate 22 support the limiting rings 511. The two limiting rings 511 cooperate to limit the position of the cylinder 6 along its own radial direction, reducing the probability of the cylinder 6 sliding during the detection and wiping process, and improving the installation stability of the cylinder 6.

[0042] The implementation principle of the water bath airtightness testing device for cylindrical components in this application embodiment is as follows: Under the support of the frame 1, the operator places the cylindrical component 6 on the support plate 21. The lifting component 23 drives the pressure plate 22 to move downward, so that the pressure plate 22 and the disc 51 cooperate to clamp and fix the cylindrical component 6. The moving component 11 drives the support frame 2 to move downward, so that the support frame 2 carries the cylindrical component 6 into the water tank 12. The operator judges the airtightness of the cylindrical component 6 by observing whether bubbles are generated in the water tank 12. If no bubbles are generated, it means that the airtightness of the cylindrical component 6 is good. If bubbles are generated, it means that there is a leak point on the cylindrical component 6. The moving component 11 drives the support frame 2 to move the cylindrical component 6 out of the water tank 12. The power component 423 drives the drive wheel to rotate. The drive wheel pushes the guide shaft 421 to move radially along the cleaning ring 4 through the inner wall of the guide groove 424, thereby driving the arc plate 41 to move radially towards the cleaning ring 4. The arc-shaped plate 41 drives the cleaning cloth 43 to approach and contact the cylinder 6. The cleaning cloth 43 wipes the outer wall of the cylinder 6. The elastic element 313 pushes the mounting base 311 away from the axis of the cleaning ring 4, and the drive wheel 314 away from the axis of the cleaning ring 4, so that the cleaning cloth 43 remains taut. This makes the cleaning cloth 43 fit against the inner wall of the arc-shaped plate 41 and the outer wall of the cylinder 6, improving the wiping effect of the cleaning cloth 43. The first drive element 24 drives the lifting plate 3 to move vertically, so that the cleaning cloth 43 can fully wipe the cylinder 6 along the length of the cylinder 6. The second drive element 53 drives the spline shaft 52 to rotate through the gear 54. The spline shaft 52 drives the pressure plate 22 to rotate. The pressure plate 22 and the disc 51 work together to drive the cylinder 6 to rotate, so that the cylinder 6 is in contact with the cleaning cloth 43 in all directions, reducing the probability of residual liquid on the outer wall of the cylinder 6. The operator no longer needs to wipe the cylinder 6, reducing the operation process and improving the convenience of testing.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water bath air tightness detection device for cylindrical parts, characterized in that: The system includes a frame (1), on which a vertically sliding support frame (2) is mounted. The frame (1) is equipped with a moving part (11) for moving the support frame (2). A support plate (21) is fixedly mounted at the lower end of the support frame (2), and a pressure plate (22) is slidably connected to the support frame (2) vertically. The pressure plate (22) is located directly above the support plate (21). The support frame (2) is equipped with a lifting part (23) for moving the pressure plate (22). A water tank (12) is fixedly mounted at the lower end of the frame (1) and directly opposite the support plate (21). A lifting plate (3) is slidably connected to the support frame (2) vertically, and a drive mechanism is provided for moving the lifting plate (3). Part 1 (24) The lifting plate (3) is provided with a cleaning ring (4). The cleaning ring (4) is sleeved on the outside of the pressure plate (22), and the inner diameter of the cleaning ring (4) is larger than the diameter of the pressure plate (22). The cleaning ring (4) is provided with several arc plates (41) along the radial direction. All the arc plates (41) are slidably connected to the cleaning ring (4) along the radial direction. The lifting plate (3) is provided with an opening and closing component (42) for moving all the arc plates (41). The side of the arc plate (41) facing the center of the cleaning ring (4) is provided with a cleaning cloth (43). The support frame (2) is also provided with a rotating component (5) for rotating the pressure plate (22). When the pressure plate (22) rotates, it drives the measured part to rotate.

2. The water bath air tightness detection equipment for cylindrical parts according to claim 1, characterized in that: The rotating assembly (5) includes a disc (51), a splined shaft (52), a second driving component (53), and a gear (54). The disc (51) is rotatably connected to the support plate (21) and located directly below the pressure plate (22). The diameter of the disc (51) is larger than the diameter of the cylindrical part (6) being measured. The splined shaft (52) is coaxially fixed to the upper end of the pressure plate (22) and is rotatably connected to the output shaft of the lifting component (23). The rotation axis coincides with the axis of the disc (51). The gear (54) is rotatably connected to the support frame (2) and meshes with the splined shaft (52). The second driving component (53) is set on the support frame (2) and is used to drive the gear (54) to rotate.

3. The water bath air tightness detection equipment for cylindrical parts according to claim 2, characterized in that: The upper end of the disc (51) and the lower end of the pressure plate (22) are both provided with a limit ring (511) on the same axis. The test cylinder (6) is located inside the limit ring (511) and fits against the inner wall of the limit ring (511).

4. The water bath airtightness testing equipment for cylindrical components according to claim 1, characterized in that: The opening / closing component (42) includes several guide shafts (421), a drive ring (422), and a power component (423). The drive ring (422) is located above all the arc plates (41) and is rotatably connected to the lifting plate (3). The drive ring (422) is coaxial with the cleaning ring (4). The guide shafts (421) correspond one-to-one with the arc plates (41) and are fixed above the corresponding arc plates (41). The lower end of the drive ring (422) has several circumferentially arranged members that correspond to the guide shafts (421). 1) A one-to-one corresponding guide groove (424) is provided in an involute shape along the circumference of the drive ring (422). The guide shaft (421) is located inside the guide groove (424) and is slidably connected to the inner wall of the guide groove (424). When the drive ring (422) rotates, it pushes the guide shaft (421) to move radially along the cleaning ring (4) through the inner wall of the guide groove (424). The power component (423) is set on the lifting plate (3) and is used to drive the drive ring (422) to rotate.

5. The water bath airtightness testing equipment for cylindrical components according to claim 1, characterized in that: The cleaning cloth (43) is ring-shaped, and the arc plate (41) is provided with limiting rods (44) on both sides along the transverse direction. There is an opening (45) between the limiting rod (44) and the arc plate (41) for the cleaning cloth (43) to pass through. The cleaning cloth (43) passes through all the openings (45) in sequence and is close to the side wall of the arc plate (41) facing the cylinder (6) under the action of the limiting rod (44). The lifting plate (3) is provided with a rotating part (31) for driving the cleaning cloth (43) to rotate.

6. The water bath airtightness testing equipment for cylindrical components according to claim 5, characterized in that: The rotating component (31) includes a mounting base (311), a rotary motor (312), an elastic element (313), and a drive wheel (314). The mounting base (311) is slidably connected to the lifting plate (3) along the radial direction of the cleaning ring (4). The elastic element (313) is disposed between the mounting base (311) and the lifting plate (3) and pushes the mounting base (311) away from the axis of the cleaning ring (4) in its natural state. The drive wheel (314) is rotatably connected to the mounting base (311) and is located inside the cleaning cloth (43) and is rotatably connected to the cleaning cloth (43). Under the support of the arc plate (41), the drive wheel (314) drives the cleaning cloth (43) to rotate circumferentially when it rotates. The rotary motor (312) is fixed on the mounting base (311) and is used to drive the drive wheel (314) to rotate.

7. The water bath airtightness testing equipment for cylindrical components according to claim 6, characterized in that: The cleaning ring (4) is equipped with a drying nozzle (46), which is located outside the cleaning ring (4) and directly opposite the cleaning cloth (43). When the drying nozzle (46) is working, it sprays hot air onto the cleaning cloth (43).

8. The water bath airtightness testing equipment for cylindrical components according to claim 1, characterized in that: The lower end of the cleaning ring (4) is also provided with a jet head (47), the jet head (47) is directed toward the axis of the cleaning ring (4), and is arranged radially from top to bottom along the cleaning ring (4).

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