Detection equipment and detection method for pressure valve quality inspection

Abstract

The invention discloses detection equipment and a detection method for pressure valve quality inspection, and relates to the field of valve detection.The detection equipment comprises a collection pool, a feeding and discharging mechanism is arranged above the collection pool and comprises a base, an electric moving track is fixed to the outer surface of the collection pool, and the base is fixed to the moving end of the electric moving track; a vibrating mechanism is arranged below the base, and cleaning mechanisms are arranged on the two sides of the base. According to the detection equipment for pressure valve quality inspection, a sealing gasket and an air bag can keep a valve plugging and sealing area clean, the sealing gasket and the air bag are prevented from being damaged by impurities and chippings, and meanwhile the problem that the sealing performance of a plugging position is reduced due to the fact that the sealing gasket and the air bag are mixed with the chippings and the impurities is solved; and meanwhile, the sealing performance of the valve in a vibration environment can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of valve detection, and in particular to a detection device and a detection method for quality inspection of pressure valves. Background Art

[0002] A pressure valve is a device used to control fluid pressure and is widely used in various industrial and household applications. Before leaving the factory, a pressure valve is usually required to undergo an air tightness test to detect whether the valve body has any defects and whether the seal at the valve stem is reliable. The current testing method generally involves filling the valve cavity with medium and applying pressure. The air tightness of the valve is determined by observing whether there is medium leakage inside the cavity. The quality inspection of pressure valves is an especially important link in the valve production process.

[0003] At present, when conducting quality inspection on pressure valves, gas is generally filled into the cavity of the pressure valve. After being placed statically for a period of time, the air tightness of the valve is judged by monitoring whether the gas in the valve cavity leaks. However, the current valve inspection equipment has difficulty in detecting the air tightness of the valve in a vibrating environment, resulting in a relatively simple valve inspection method.

[0004] On the other hand, a patent with the search announcement number CN118549040B discloses a valve inspection device and its use method. This device can ensure that the inner wall of the valve body is exposed to a high-pressure gas environment during the inspection process, which plays a role in reducing inspection errors. However, it is difficult to clean the valve and the gasket in a timely manner with the above device. When the valve is tested for sealing by the inspection device, two extrusion plates with gaskets are generally squeezed close to each other to squeeze the two ends of the valve so that the two ends of the valve are sealed. Then gas is filled into the valve cavity, and the valve is moved to a water pool to observe whether bubbles are generated. However, during long-term use, impurities and debris adhere to the gasket and the valve end face. If not cleaned in time, the gasket will be damaged and ruptured, and the sealing effect of the gasket on the valve will be affected, resulting in leakage between the valve end face and the gasket. To this end, we provide a pressure valve quality inspection inspection device and inspection method to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to make up for the shortcomings of the existing technology and provide a detection equipment for quality inspection of pressure valves, including a collecting pool, a loading and unloading mechanism is arranged above the collecting pool, the loading and unloading mechanism includes a base, an electric movable track is fixed on the outer surface of the collecting pool, the base is fixed at the movable end of the electric movable track, a vibration mechanism is arranged below the base, and cleaning mechanisms are arranged on both sides of the base, the cleaning mechanism includes a support plate fixed on the collecting pool and three L-shaped air nozzles.

[0006] An air storage ring groove is fixed on the outer surface of the support plate, and the inner wall of the air storage ring groove is sealingly rotatably connected to a ring plate, and the outer surfaces of the three L-shaped air nozzles are fixed with a fixing bracket, and the three fixing brackets are fixed to the ring plate, and a cleaning assembly is provided on the side of the three L-shaped air nozzles close to the base, and the cleaning assembly includes a movable bracket and a limit block fixed on the L-shaped air nozzle, and two sliding rods are fixed on the outer surface of the movable bracket, and the two sliding rods are slidably connected to the limit block, and two straight sliding grooves are fixed to the bottom of the movable bracket, and the inner walls of the two straight sliding grooves are slidably connected to a cleaning brush plate.

[0007] A motorized telescopic rod (I) is fixed above the base, with an electric clamping claw mounted on its telescopic end. A placement platform is fixed to the outer surface of the collection tank, and two pneumatic cylinders (II) are fixed below the placement platform, each with a clamping plate fixed to its telescopic end. When loading a pressure valve, the valve is first placed on the placement platform, and the two pneumatic cylinders (II) are controlled to drive the two clamping plates toward each other. The two clamping plates approach the valve synchronously and at the same speed, clamping and fixing the valve so that the valve is centered. Two working grooves are provided on the outer surface of the placement platform to facilitate the electric clamping claws to grip the valve on the placement platform.

[0008] Furthermore, a sealing assembly is provided on both sides of the base, and the sealing assembly includes a pressure tube and a cylinder 1 fixed to the base, an extrusion disc is fixed to the telescopic end of the cylinder 1, the pressure tube passes through the extrusion disc and is fixed to the extrusion disc, a sealing gasket is fixed to the side of the extrusion disc close to the base, an airbag is fixed to the outer surface of the pressure tube, and a pressure sensor is installed on the end of the pressure tube close to the base. When sealing the valve, the two cylinders 1 are controlled to move the two extrusion discs closer to each other, so that the two sealing gaskets squeeze the ports of the sealed valve, and the two airbags are controlled to expand to further seal the ports of the sealed valve. By setting two sealing methods, the sealing effect of the device on the valve is improved.

[0009] The vibration mechanism includes a sleeve, a connecting rod is fixed to the outer surface of the sleeve, the connecting rod is fixed to the base, an impact column is slidably connected to the inner wall of the sleeve, a pressure plate is fixed to the outer surface of the impact column, a telescopic spring 1 is provided inside the sleeve, the two ends of the telescopic spring 1 are respectively fixed to the impact column and the sleeve, a motor 1 is fixed to the outer surface of the base, and a diamond plate that matches the pressure plate is fixed to the output end of the motor 1. The control motor 1 drives the diamond plate to rotate, so that the diamond plate strikes the pressure plate multiple times, and the pressure plate is repeatedly compressed and reset by the spring tension of the telescopic spring 1. The pressure plate is repeatedly compressed and reset by the spring tension of the telescopic spring 1, so that the impact column strikes the bottom of the valve multiple times, causing the valve to vibrate to simulate a vibration environment, so that the sealing performance of the valve can be tested under a vibration environment.

[0010] Furthermore, the cleaning mechanism includes a gear ring and a second motor fixed to a support plate. A gear is fixed to the output end of the second motor. The gear ring and the gear mesh with each other, and the three L-shaped air nozzles are all fixed to the gear ring. When the second motor is controlled to rotate the gear, the gear rotation drives the three L-shaped air nozzles to rotate through the gear ring.

[0011] The outer surface of the air storage ring groove is fixedly connected to a main air pipe. The outer surfaces of the three L-shaped air nozzles are fixedly connected to tees. These three tees are fixedly connected to the ring plate and respectively fixed to three fixed frames. The ends of the three tees away from the ring plate are fixedly connected to spring air pipes. External air is injected into the air storage ring groove through the main air pipe. The air in the air storage ring groove is then circulated through the tees to the L-shaped air nozzles and spring air pipes. The air ejected from the L-shaped air nozzles cleans the surface of the sealing gasket and the airbag. The spring air pipes are flexible to avoid interfering with the movement trajectory of the movable frame.

[0012] The cleaning assembly also includes a linear air nozzle fixedly connected to the spring air tube. The linear air nozzle is fixed to a movable frame, below which is a fixed plate. The two linear guide slots are fixed to the fixed plate. Two telescopic springs are fixed to the outer surface of the fixed plate. The ends of the two telescopic springs, facing away from the fixed plate, are respectively fixed to two cleaning brush plates. Rotation of the L-shaped air nozzle drives the movable frame, which in turn drives the two cleaning brush plates to clean the inner wall of the valve port. Simultaneously, air ejected from the linear air nozzle further cleans the inner wall of the valve port.

[0013] Furthermore, the cleaning mechanism also includes a ring rail and a second electrically-operated telescopic rod fixed to a support plate. A U-shaped frame is fixed to the telescopic end of the second electrically-operated telescopic rod, which is fixed to the ring rail. A plurality of striking blocks arranged in a circular array are fixed to the outer surface of the ring rail. The cleaning assembly also includes a connecting frame, to which both cleaning brush plates are fixed. A striking block adapted to the striking blocks is fixed to the outer surface of the connecting frame. The movable frame is slidably connected to the inner wall of the ring rail.

[0014] When the L-shaped air nozzle drives the movable frame to rotate in the ring track, the impact block will be squeezed by the impact block to drive the connecting frame to move, so that the connecting frame drives the two cleaning brush plates to move close to the L-shaped air nozzle. After the impact block no longer squeezes the impact block, the cleaning brush plates are reset by the spring pressure of the telescopic spring 2, so that the cleaning brush plates move away from the L-shaped air nozzle, so that the cleaning brush plates rotate and move back and forth horizontally to clean the inner wall of the valve, thereby strengthening the cleaning effect of the inner wall of the valve, and preventing impurities and debris from adhering to the inner wall of the valve and affecting the sealing effect of the air bag on the valve.

[0015] The detection method of the valve detection equipment is as follows:

[0016] Step 1: Place the pressure valve to be tested on the placement table, and use two clamping plates to simultaneously clamp the pressure valve close to each other for centering alignment. Then control the electric telescopic rod to move the electric clamping claw to the valve position, control the electric clamping claw to clamp the pressure valve, and then move the valve so that the axis line of the valve port coincides with the axis line of the airbag to complete the loading operation.

[0017] Step 2: Control the electric telescopic rod 2 to drive the ring rail to move closer to the base. The ring rail will move the movable frame to make the cleaning brush plate enter the inner wall of the valve port. Control the second motor to start to make the gear drive the gear ring to rotate. The gear ring drives the L-shaped air nozzle to rotate. The air ejected from the L-shaped air nozzle cleans the impurities and debris on the surface of the sealing gasket and the airbag. When the L-shaped air nozzle rotates, it will drive the movable frame to rotate. The rotation of the movable frame drives the two cleaning brush plates to clean the inner wall of the valve port. At the same time, the air ejected from the linear air nozzle further cleans the inner wall of the valve port.

[0018] Step 3. After cleaning is completed, control the electric telescopic rod 2 to drive the ring rail to move away from the base. The ring rail will move the movable frame to move the cleaning component away from the valve. Control the electric movable track to drive the base to move downward to the bottom end. Control the two cylinders 1 to make the two extrusion disks approach each other, so that the two sealing pads squeeze the port of the sealing valve, and control the two air bags to expand to further block the port of the sealing valve to improve the sealing effect.

[0019] Step 4: Inject gas into the valve cavity through two pressurized tubes, and monitor the changes in air pressure in the valve cavity through a pressure sensor, so that the air tightness of the valve can be tested. When the valve needs to be tested for sealing under a vibration environment, control motor 1 to drive the diamond plate to rotate, so that the diamond plate hits the pressure plate multiple times. After the pressure plate is compressed multiple times, it is reset by the spring tension of telescopic spring 1, so that the impact column hits the bottom of the valve multiple times, causing the valve to vibrate to simulate a vibration environment.

[0020] Compared with the existing technology, the pressure valve quality inspection equipment has the following beneficial effects:

[0021] 1. The present invention is provided with a cleaning mechanism. Before the valve is blocked, the movable frame is controlled to extend the cleaning brush plate and the linear air nozzle thereon into the interior of the valve port, and the L-shaped air nozzle is controlled to rotate around the airbag, so that the air ejected by the L-shaped air nozzle cleans impurities and debris on the surface of the sealing gasket and the airbag. At the same time, the cleaning brush plate cooperates with the linear air nozzle to clean the inner wall of the valve port, keeping the sealing area of the valve blockage by the sealing gasket and the airbag clean, preventing impurities and debris from damaging the sealing gasket and the airbag, and preventing the problem of reduced sealing of the blockage due to debris and impurities in the blockage sealing area.

[0022] 2. The present invention is provided with a loading and unloading mechanism and a vibration mechanism. When sealing the valve, the two cylinders are controlled to make the two extrusion disks approach each other, so that the two sealing pads squeeze the port of the sealed valve, and the two air bags are controlled to expand to further seal the port of the sealed valve. By setting up two sealing methods, the sealing effect of the device on the valve is improved. At the same time, during the test, the pressure plate is controlled to be compressed multiple times and then reset by the spring tension of the telescopic spring, so that the impact column knocks the bottom of the valve multiple times, causing the valve to vibrate to simulate a vibration environment, so that the valve can be tested for sealing in a vibration environment.

[0023] Other advantages, objects and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the split structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the cylinder 2 and the clamping plate of the present invention;

[0027] Figure 4 Schematic diagram of the three-dimensional structure of the loading and unloading mechanism of the present invention;

[0028] Figure 5 Schematic diagram of the three-dimensional structure of the vibration mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention when performing cleaning;

[0030] Figure 7 Schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention;

[0031] Figure 8 It is a schematic diagram of the split structure of the cleaning mechanism of the present invention;

[0032] Figure 9 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention;

[0033] Figure 10 Schematic diagram of the three-dimensional structure of the cleaning component of the present invention;

[0034] Figure 11 This is a schematic diagram of the split structure of the cleaning brush plate of the present invention;

[0035] Figure 12It is a schematic diagram of the three-dimensional structure of the struck block and the striking block of the present invention.

[0036] In the picture:

[0037] 1. Collection pool;

[0038] 2. Loading and unloading mechanism; 201. Base; 202. Electric moving track; 203. Electric telescopic rod 1; 204. Electric clamping claw; 205. Cylinder 1; 206. Squeeze plate; 207. Sealing gasket; 208. Pressurized tube; 209. Air bag; 210. Pressure sensor;

[0039] 3. Vibration mechanism; 301. Sleeve; 302. Impact column; 303. Telescopic spring 1; 304. Pressure plate; 305. Connecting rod; 306. Motor 1; 307. Diamond plate;

[0040] 4. Cleaning mechanism; 401. Support plate; 402. Air ring groove; 403. Main air pipe; 404. Ring plate; 405. Second motor; 406. Gear; 407. Gear ring; 408. L-shaped air nozzle; 409. Fixed frame; 410. Tee pipe; 411. Spring air pipe; 412. Linear air nozzle; 413. Movable frame; 414. Slide rod; 415. Limit block; 416. Connecting frame; 417. Impact block; 418. Straight slide; 419. Cleaning brush plate; 420. Second telescopic spring; 421. Fixed plate; 422. Second electric telescopic rod; 423. U-shaped frame; 424. Ring rail; 425. Impact block;

[0041] 5. Placement table; 6. Cylinder 2; 7. Clamping plate. DETAILED DESCRIPTION

[0042] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] See also Figure 1 and Figure 2 The present invention provides a technical solution: a detection equipment for quality inspection of pressure valves, including a collecting pool 1, a loading and unloading mechanism 2 is arranged above the collecting pool 1, the loading and unloading mechanism 2 includes a base 201, an electric movable track 202 is fixed on the outer surface of the collecting pool 1, the base 201 is fixed to the moving end of the electric movable track 202, a vibration mechanism 3 is arranged below the base 201, and cleaning mechanisms 4 are arranged on both sides of the base 201, the cleaning mechanism 4 includes a support plate 401 fixed on the collecting pool 1 and three L-shaped air nozzles 408.

[0044] See also Figure 6 and Figure 7 The outer surface of the support plate 401 is fixed with an air storage ring groove 402, and the inner wall of the air storage ring groove 402 is sealed and rotatably connected with a ring plate 404. The outer surfaces of the three L-shaped air nozzles 408 are fixed with fixing frames 409, and the three fixing frames 409 are fixed to the ring plate 404. The three L-shaped air nozzles 408 are each provided with a cleaning assembly on one side close to the base 201. The cleaning assembly includes a movable frame 413 and a limit block 415 fixed on the L-shaped air nozzle 408. Two sliding rods 414 are fixed on the outer surface of the movable frame 413, and the two sliding rods 414 are slidably connected to the limit block 415. The bottom of the movable frame 413 is fixed with two straight sliding grooves 418, and the inner walls of the two straight sliding grooves 418 are slidably connected with a cleaning brush plate 419.

[0045] See also Figure 3 An electric telescopic rod 203 is fixed above the base 201, with an electric clamping claw 204 installed at the telescopic end of the electric telescopic rod 203. A placement platform 5 is fixed to the outer surface of the collection tank 1, and two cylinders 26 are fixed below the placement platform 5. The telescopic ends of the two cylinders 26 are fixed to clamping plates 7. When loading the pressure valve, the pressure valve is first placed on the placement platform 5, and the two cylinders 26 are controlled to drive the two clamping plates 7 towards each other. The two clamping plates 7 approach the valve synchronously and at the same speed, so that the two clamping plates 7 clamp and fix the valve, aligning the valve in the center. The outer surface of the placement platform 5 has two working grooves to facilitate the electric clamping claws 204 to clamp the valve on the placement platform 5.

[0046] See also Figure 4 A sealing assembly is provided on both sides of the base 201. The sealing assembly includes a pressurized tube 208 and a cylinder 1 205 fixed to the base 201. A squeeze disc 206 is fixed to the telescopic end of the cylinder 1 205. The pressurized tube 208 passes through and is fixed to the squeeze disc 206. A sealing gasket 207 is fixed to the side of the squeeze disc 206 close to the base 201. An airbag 209 is fixed to the outer surface of the pressurized tube 208. A pressure sensor 210 is installed on the end of the pressurized tube 208 close to the base 201. When sealing the valve, the two cylinders 1 205 are controlled to move the two squeeze discs 206 closer together, causing the two sealing gaskets 207 to squeeze and seal the valve port. The two airbags 209 are then controlled to expand, further sealing the valve port. By providing two sealing methods, the sealing effect of the device on the valve is improved. By injecting gas into the valve cavity through two pressurized tubes 208 and monitoring the changes in air pressure in the valve cavity through the pressure sensor 210, the air tightness of the valve can be tested. When the valve needs to be tested for sealing using water as a filling medium, water is injected into the valve cavity through the two pressurized tubes 208, and after the test is completed, the water will fall into the collection pool 1 and be discharged to the outside.

[0047] See also Figure 5 The vibration mechanism 3 includes a sleeve 301, a connecting rod 305 is fixed to the outer surface of the sleeve 301, the connecting rod 305 is fixed to the base 201, the inner wall of the sleeve 301 is slidably connected to the impact column 302, the outer surface of the impact column 302 is fixed with a pressure plate 304, a telescopic spring 303 is provided inside the sleeve 301, the two ends of the telescopic spring 303 are respectively fixed to the impact column 302 and the sleeve 301, a motor 306 is fixed to the outer surface of the base 201, and a diamond plate 307 adapted to the pressure plate 304 is fixed to the output end of the motor 306. The control motor 306 drives the diamond plate 307 to rotate, so that the diamond plate 307 repeatedly strikes the pressure plate 304. After the pressure plate 304 is compressed multiple times, it is reset by the spring tension of the telescopic spring 303. After the pressure plate 304 is compressed multiple times, it is reset by the spring tension of the telescopic spring 303, so that the impact column 302 repeatedly strikes the bottom of the valve, causing the valve to vibrate to simulate a vibration environment, so that the valve can be tested for sealing in a vibration environment.

[0048] See also Figure 8 and Figure 9 The cleaning mechanism 4 further includes a gear ring 407 and a second motor 405 fixed to the support plate 401. A gear 406 is fixed to the output end of the second motor 405. The gear ring 407 and the gear 406 are meshed with each other, and three L-shaped air nozzles 408 are fixed to the gear ring 407. When the second motor 405 is controlled to drive the gear 406 to rotate, the rotation of the gear 406 drives the three L-shaped air nozzles 408 to rotate through the gear ring 407.

[0049] See also Figure 9 and Figure 10 The outer surface of the air storage ring groove 402 is fixedly connected to a main air pipe 403. The outer surfaces of the three L-shaped air nozzles 408 are fixedly connected to a tee pipe 410. The three tee pipes 410 are fixedly connected to the ring plate 404 and are respectively fixed to three fixing frames 409. The ends of the three tee pipes 410 away from the ring plate 404 are fixedly connected to a spring air pipe 411. External air is injected into the air storage ring groove 402 through the main air pipe 403. The air in the air storage ring groove 402 is then circulated through the tee pipe 410 to the L-shaped air nozzles 408 and the spring air pipes 411. The air ejected from the L-shaped air nozzles 408 cleans the surfaces of the sealing gasket 207 and the airbag 209. The spring air pipes 411 are flexible to avoid interfering with the movement trajectory of the movable frame 413.

[0050] See also Figure 10 and Figure 11The cleaning assembly also includes a linear air nozzle 412 fixedly connected to the spring air tube 411. The linear air nozzle 412 is fixed to the movable frame 413. A fixed plate 421 is provided below the movable frame 413. Two straight slides 418 are fixed to the fixed plate 421. Two telescopic springs 420 are fixed to the outer surface of the fixed plate 421. The ends of the two telescopic springs 420 away from the fixed plate 421 are respectively fixed to two cleaning brush plates 419. When the L-shaped air nozzle 408 rotates, it drives the movable frame 413 to rotate. The rotation of the movable frame 413 drives the two cleaning brush plates 419 to clean the inner wall of the valve port. At the same time, the air ejected from the linear air nozzle 412 further cleans the inner wall of the valve port.

[0051] See also Figure 10 and Figure 12 The cleaning mechanism 4 also includes a ring rail 424 and an electric telescopic rod 422 fixed on the support plate 401. The telescopic end of the electric telescopic rod 422 is fixed with a U-shaped frame 423, and the U-shaped frame 423 is fixed to the ring rail 424. The outer surface of the ring rail 424 is fixed with a plurality of striking blocks 425 in a circular array.

[0052] The cleaning assembly also includes a connecting frame 416, and two cleaning brush plates 419 are fixed to the connecting frame 416. The outer surface of the connecting frame 416 is fixed with a striking block 417 that is compatible with the striking block 425. The movable frame 413 is slidably connected to the inner wall of the ring rail 424.

[0053] When the L-shaped air nozzle 408 drives the movable frame 413 to rotate in the ring track 424, the impact block 417 will be squeezed by the impact block 425 to drive the connecting frame 416 to move, so that the connecting frame 416 drives the two cleaning brush plates 419 to move closer to the L-shaped air nozzle 408. After the impact block 425 no longer squeezes the impact block 417, the cleaning brush plates 419 are reset by the spring pressure of the telescopic spring 2 420, so that the cleaning brush plates 419 move away from the L-shaped air nozzle 408, so that the cleaning brush plates 419 rotate and move back and forth horizontally to clean the inner wall of the valve, thereby strengthening the cleaning force on the inner wall of the valve and preventing impurities and debris from adhering to the inner wall of the valve and affecting the sealing effect of the air bag 209 on the valve.

[0054] The detection method of the valve detection equipment is as follows:

[0055] S1. Place the pressure valve to be tested on the placement table 5, and use two clamping plates 7 to simultaneously approach each other to clamp the pressure valve for centering alignment, then control the electric telescopic rod 203 to move the electric clamping claw 204 to the valve position, control the electric clamping claw 204 to clamp the pressure valve, and then move the valve so that the axis line of the valve port coincides with the axis line of the airbag 209 to complete the loading operation.

[0056] S2. Control the second electric telescopic rod 422 to drive the ring rail 424 to move closer to the base 201. The ring rail 424 moves the movable frame 413 to allow the cleaning brush plate 419 to enter the inner wall of the valve port. Control the second motor 405 to start so that the gear 406 drives the gear ring 407 to rotate. The gear ring 407 drives the L-shaped air nozzle 408 to rotate. The air ejected from the L-shaped air nozzle 408 cleans the impurities and debris on the surface of the sealing gasket 207 and the air bag 209.

[0057] When the L-shaped air nozzle 408 drives the movable frame 413 to rotate, the impact block 417 will be squeezed by the striking block 425 to drive the connecting frame 416 to move, so that the connecting frame 416 drives the two cleaning brush plates 419 to move closer to the L-shaped air nozzle 408. After the striking block 425 no longer squeezes the impact block 417, the cleaning brush plates 419 are reset by the spring pressure of the telescopic spring 2 420, so that the cleaning brush plates 419 move away from the L-shaped air nozzle 408, so that the cleaning brush plates 419 rotate and move back and forth horizontally to clean the inner wall of the valve, thereby strengthening the cleaning force on the inner wall of the valve, preventing impurities and debris from adhering to the inner wall of the valve and affecting the sealing effect of the airbag 209 on the valve. At the same time, the air ejected from the linear air nozzle 412 further cleans the inner wall of the valve port.

[0058] S3. After cleaning is completed, the electric telescopic rod 2 422 is controlled to drive the ring rail 424 to move away from the base 201. The ring rail 424 will toggle the movable frame 413 to move the cleaning component away from the valve. Then, the two cylinders 1 205 are controlled to respectively drive the two extrusion plates 206 to move away from each other. Then, the electric movable track 202 is controlled to drive the base 201 to move downward to the bottom end. The two cylinders 1 205 are controlled to respectively move the two extrusion plates 206 closer to each other, so that the two sealing pads 207 squeeze the port of the sealing valve, and the two air bags 209 are controlled to expand to further block the port of the sealing valve to improve the sealing effect.

[0059] S4. Gas is injected into the valve cavity through two pressurizing tubes 208, and the changes in the air pressure in the valve cavity are monitored through the pressure sensor 210, so that the air tightness of the valve can be tested. When the sealing performance of the valve needs to be tested in a vibration environment, the motor 1 306 is controlled to drive the diamond plate 307 to rotate, so that the diamond plate 307 strikes the pressure plate 304 multiple times. After the pressure plate 304 is compressed multiple times, it is reset by the spring tension of the telescopic spring 1 303, so that the impact column 302 strikes the bottom of the valve multiple times, causing the valve to vibrate to simulate a vibration environment.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pressure valve quality inspection device, comprising a collection tank (1), characterized in that: A loading and unloading mechanism (2) is provided above the collection pool (1), the loading and unloading mechanism (2) comprising a base (201), an electric movable track (202) being fixed on the outer surface of the collection pool (1), the base (201) being fixed to the movable end of the electric movable track (202), a vibration mechanism (3) being provided below the base (201), cleaning mechanisms (4) being provided on both sides of the base (201), the cleaning mechanisms (4) comprising a support plate (401) fixed on the collection pool (1) and three L-shaped air nozzles (408); An air storage ring groove (402) is fixed on the outer surface of the support plate (401), and the inner wall of the air storage ring groove (402) is sealingly rotatably connected to a ring plate (404). The outer surfaces of the three L-shaped air nozzles (408) are fixed with a fixing frame (409), and the three fixing frames (409) are fixed to the ring plate (404). A cleaning assembly is provided on one side of the three L-shaped air nozzles (408) close to the base (201), and the cleaning assembly includes a movable frame (413) and a limit block (415) fixed on the L-shaped air nozzle (408). Two sliding rods (414) are fixed on the outer surface of the movable frame (413), and the two sliding rods (414) are slidably connected to the limit block (415). Two straight sliding grooves (418) are fixed on the bottom of the movable frame (413), and the inner walls of the two straight sliding grooves (418) are slidably connected to a cleaning brush plate (419).

2. The pressure valve quality inspection device according to claim 1, characterized in that: An electric telescopic rod (203) is fixed above the base (201), and an electric clamping claw (204) is installed at the telescopic end of the electric telescopic rod (203). A placement table (5) is fixed on the outer surface of the collection tank (1), and two cylinders (6) are fixed below the placement table (5), and clamping plates (7) are fixed at the telescopic ends of the two cylinders (6).

3. The pressure valve quality inspection device according to claim 1, characterized in that: Both sides of the base (201) are provided with a blocking assembly, the blocking assembly comprising a pressurizing tube (208) and a cylinder (205) fixed on the base (201), an extrusion disc (206) being fixed to the telescopic end of the cylinder (205), the pressurizing tube (208) passing through the extrusion disc (206) and being fixed to the extrusion disc (206), a sealing gasket (207) being fixed to a side of the extrusion disc (206) close to the base (201), an air bag (209) being fixed to the outer surface of the pressurizing tube (208), and a pressure sensor (210) being installed at one end of the pressurizing tube (208) close to the base (201).

4. The pressure valve quality inspection device according to claim 1, characterized in that: The vibration mechanism (3) includes a sleeve (301), a connecting rod (305) is fixed on the outer surface of the sleeve (301), the connecting rod (305) is fixed to the base (201), the inner wall of the sleeve (301) is slidably connected to the impact column (302), the outer surface of the impact column (302) is fixed to the pressure plate (304), a telescopic spring (303) is provided inside the sleeve (301), the two ends of the telescopic spring (303) are respectively fixed to the impact column (302) and the sleeve (301), a motor (306) is fixed on the outer surface of the base (201), and the output end of the motor (306) is fixed to a diamond plate (307) adapted to the pressure plate (304).

5. The pressure valve quality inspection device according to claim 1, characterized in that: The cleaning mechanism (4) further comprises a gear ring (407) and a second motor (405) fixed on the support plate (401); a gear (406) is fixed to the output end of the second motor (405); the gear ring (407) and the gear (406) are meshed with each other, and the three L-shaped air nozzles (408) are all fixed to the gear ring (407).

6. The pressure valve quality inspection device according to claim 1, characterized in that: The outer surface of the air storage ring groove (402) is fixedly connected to the main air pipe (403), and the outer surfaces of the three L-shaped air nozzles (408) are fixedly connected to three tee pipes (410). The three tee pipes (410) are fixedly connected to the ring plate (404), and the three tee pipes (410) are respectively fixed to three fixing frames (409). The ends of the three tee pipes (410) away from the ring plate (404) are fixedly connected to the spring air pipe (411).

7. The pressure valve quality inspection device according to claim 1, characterized in that: The cleaning assembly also includes a linear air nozzle (412) fixedly connected to the spring air pipe (411), the linear air nozzle (412) is fixed to the movable frame (413), a fixed plate (421) is provided below the movable frame (413), the two straight slide grooves (418) are fixed to the fixed plate (421), two telescopic springs (420) are fixed to the outer surface of the fixed plate (421), and the ends of the two telescopic springs (420) away from the fixed plate (421) are respectively fixed to two cleaning brush plates (419).

8. The pressure valve quality inspection device according to claim 1, characterized in that: The cleaning mechanism (4) further comprises a ring rail (424) and a second electric telescopic rod (422) fixed on the support plate (401); a U-shaped frame (423) is fixed to the telescopic end of the second electric telescopic rod (422); the U-shaped frame (423) is fixed to the ring rail (424); and a plurality of striking blocks (425) arranged in a circular array are fixed to the outer surface of the ring rail (424).

9. The pressure valve quality inspection device according to claim 8, characterized in that: The cleaning assembly further comprises a connecting frame (416), the two cleaning brush plates (419) are both fixed to the connecting frame (416), a striking block (417) adapted to the striking block (425) is fixed to the outer surface of the connecting frame (416), and the movable frame (413) is slidably connected to the inner wall of the ring rail (424).

10. A pressure valve quality inspection device according to any one of claims 1 to 9, characterized in that: The valve testing equipment includes the following testing methods: S1. Place the pressure valve to be tested on the placement table (5), and use two clamping plates (7) to simultaneously approach each other to clamp the pressure valve for centering alignment, then control the electric telescopic rod (203) to move the electric clamping claw (204) to the valve position, control the electric clamping claw (204) to clamp the pressure valve, and then move the valve so that the axis of the valve port coincides with the axis of the airbag (209), completing the loading operation; S2, control the second electric telescopic rod (422) to drive the ring rail (424) to move closer to the base (201), the ring rail (424) will toggle the movable frame (413) to make the cleaning brush plate (419) enter the inner wall of the valve port, control the second motor (405) to start and make the gear (406) drive the gear ring (407) to rotate, the gear ring (407) drives the L-shaped air nozzle (408) to rotate, so that the air ejected by the L-shaped air nozzle (408) cleans the impurities and debris on the surface of the sealing gasket (207) and the air bag (209), and the L-shaped air nozzle (408) will drive the movable frame (413) to rotate when the L-shaped air nozzle (408) rotates. The rotation of the movable frame (413) drives the two cleaning brush plates (419) to clean the inner wall of the valve port, and at the same time, the air ejected by the linear air nozzle (412) further cleans the inner wall of the valve port; S3. After cleaning is completed, the electric telescopic rod 2 (422) is controlled to drive the ring rail (424) to move away from the base (201). The ring rail (424) will move the movable frame (413) to move the cleaning component away from the valve. The electric movable track (202) is controlled to drive the base (201) to move downward to the bottom end. The two cylinders (205) are controlled to respectively move the two extrusion plates (206) closer to each other, so that the two sealing pads (207) squeeze the port of the sealing valve, and the two air bags (209) are controlled to expand to further block the port of the sealing valve and improve the sealing effect. S4. Gas is injected into the valve cavity through two pressurizing tubes (208), and the change of the air pressure in the valve cavity is monitored by the pressure sensor (210), so that the air tightness of the valve can be tested. When the sealing performance of the valve needs to be tested under a vibration environment, the motor 1 (306) is controlled to drive the diamond plate (307) to rotate, so that the diamond plate (307) strikes the pressure plate (304) multiple times. After the pressure plate (304) is repeatedly compressed, it is reset by the spring tension of the telescopic spring 1 (303), so that the impact column (302) strikes the bottom of the valve multiple times, causing the valve to vibrate to simulate a vibration environment.

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