An automatic testing device for the sealing performance of a ball valve

Abstract

The present invention discloses an automatic testing device for the sealing performance of a ball valve, which relates to the field of ball valve detection. The device includes an airtightness testing machine. A power supply board is arranged at the top of the airtightness testing machine, and a water filtering structure is arranged inside the airtightness testing machine. A clamping structure is arranged on the power supply board. In the present invention, by setting a lower clamping plate, a first electric push rod, a threaded rod, a clamping rod and a rubber sleeve, multiple threaded rods and clamping rods are fixed on the lower clamping plate in advance. After placing the ball valve on the placement rack, the first electric push rod operates to drive the upper clamping plate and the lower clamping plate at the output end to move downward. After the lower clamping plate moves downward, multiple groups of clamping rods at its bottom and the rubber sleeves on their outer walls move downward to the side of the ball valve housing. Since the fixed positions of the clamping rods are determined corresponding to the ball valve housing, a group of clamping rods are clamped on the outside of the ball valve to limit the ball valve, so that the ball valve is stabilized under the support of the placement rack, the pressure of the lower clamping plate and the clamping of the clamping rods.

Description

Technical Field

[0001] The present invention relates to the field of ball valve detection, and specifically to an automatic test device for the sealing performance of a ball valve. Background Technique

[0002] A ball valve is a valve whose opening and closing member is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Among them, the hard-sealed V-type ball valve has a strong shearing force between its V-type ball core and the metal valve seat with surfacing hard alloy, and is especially suitable for media containing fibers, tiny solid particles, etc. Since ball valves often need to transport fine substances, the sealing performance is an important factor for judging whether a ball valve is qualified. Therefore, during the production of ball valves, it is necessary to test the sealing performance of the ball valves through a testing device to judge whether the ball valves are qualified.

[0003] The prior art patent document with the publication number CN116858446A provides a device for testing the sealing performance of a ball valve. By arranging a testing mechanism on a hollow plate, the top backing plate and the ball valve to be detected are driven to rotate into a fixed frame for testing through the rotation of a circular plate. At the same time, two positioning grooves are opened on the top of the backing plate, so two ball valves can be tested simultaneously. And during the rotation of the circular plate, the tested ball valve is driven to rotate out of the fixed frame. At this time, the tested ball valve can be taken off from the top of the backing plate, achieving a more automated test of the sealing performance of the ball valve, facilitating the simultaneous testing of two ball valves, and improving work efficiency. However, when the patent of CN216390228U is used, when the ball valve is being detected, it is easy to shake and even fall off, and the testing device cannot effectively clamp and fix the ball valve. Therefore, there is an urgent need for an automatic test device for the sealing performance of a ball valve. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic test device for the sealing performance of a ball valve to solve the problems that when the existing ball valves are being detected, they are easy to shake and even fall off, the testing device cannot effectively clamp and fix the ball valves, the current airtightness testing equipment can only test one ball valve at a time with low efficiency, and when performing a water tightness test, dust debris, etc. on the surface and inside of the ball valve are likely to enter the water body, causing the water body to become turbid and affecting the observation of the airtightness test results.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An automatic test device for the sealing performance of a ball valve, including an airtightness testing machine, a power supply board is arranged at the top of the airtightness testing machine, and a water filtering structure is arranged inside the airtightness testing machine. A clamping structure is arranged on the power supply board, a side plate is arranged on the clamping structure, and an air inflation component is arranged inside the side plate.

[0006] The clamping structure includes a fixed plate, a first electric push rod is installed at the bottom end of the fixed plate, an upper clamping plate is arranged at the output end of the first electric push rod, a lower clamping plate is installed at the bottom end of the upper clamping plate, mounting blocks are arranged on both sides of the lower clamping plate, a threaded rod is clamped inside the lower clamping plate, a nut sleeve is sleeved on the outer side of the threaded rod, a clamping rod is connected to the bottom end of the threaded rod, and a rubber sleeve is arranged on the outer wall of the clamping rod.

[0007] The inflation assembly includes a placement rack, an air groove is formed inside the placement rack, an air inlet pipe is arranged inside the air groove, an installation ring is arranged at one end of the air inlet pipe, a valve is installed at the other end of the air inlet pipe, an air pump is installed at the rear end of the valve, and a rubber plug is clamped inside the air groove.

[0008] The water filtering structure includes a water filtering tank, a tank cover is clamped at the top end of the water filtering tank, a feeding pipe is clamped inside the water filtering tank, a filter plate is installed on the inner wall of the water filtering tank, a water inlet is arranged at the top end of the tank cover, a storage box is fixed on one side of the feeding pipe, a feeding groove is formed at the bottom of the feeding pipe, a sealing cover is connected to the top end of the storage box, and a second electric push rod is installed inside the storage box, and a baffle is arranged at the output end of the second electric push rod.

[0009] Preferably, an equipment groove is formed inside the airtightness tester, a display screen is installed on the power supply board, a transparent water tank is movably arranged inside the equipment groove, a cylinder is installed at the bottom end of the transparent water tank, sliders are arranged on both sides of the transparent water tank, a water outlet pipe is connected to the rear end of the transparent water tank, a water pump is installed on the water outlet pipe, and a water inlet pipe is arranged on one side of the water outlet pipe. A sliding groove is formed on the inner wall of the equipment groove, and the transparent water tank is movably connected to the equipment groove through the sliders and the sliding groove. The cylinder is fixedly installed with the equipment groove through a base. The two ends of the water outlet pipe and the water inlet pipe respectively penetrate into the inside of the transparent water tank and the water filtering tank, and water pumps are installed on both the water outlet pipe and the water inlet pipe.

[0010] Preferably, the first electric push rod is fixedly installed with the fixed plate through a mounting seat, the upper clamping plate is fixedly connected to the lower clamping plate through bolts, the threaded rod is clamped and connected to the lower clamping plate through a through groove, and the fixed plate is fixedly installed with the power supply board.

[0011] Preferably, the threaded rod is fixedly installed with the lower clamping plate through a nut sleeve, the clamping rod is fixedly connected to the threaded rod, and the rubber sleeve is fixedly connected to the clamping rod through glue.

[0012] Preferably, the placement rack is fixedly connected to the side plate, the number of the air grooves, the air inlet pipes and the valves is four, and the rubber plug is hermetically fixed to the air groove.

[0013] Preferably, the intake pipe and the air groove are fixedly connected through a mounting ring, and the intake pipe penetrates to the inside of the air pump, and the air pump and the power board are fixedly installed through bolts.

[0014] Preferably, the sealing cover and the storage box are movably connected through a hinge, and the storage box and the filter water tank are fixedly installed through a bracket.

[0015] Preferably, the box cover and the filter water tank are fixedly clamped through a buckle, and the number of filter plates is two.

[0016] Preferably, an activity groove matching the baffle is formed inside the blanking pipe, and a clamping groove matching the baffle is formed inside the blanking groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] First, by setting the lower clamping plate, the first electric push rod, the threaded rod, the clamping rod and the rubber sleeve, a plurality of threaded rods and clamping rods are fixed on the lower clamping plate in advance. After the ball valve is placed on the placement rack, the first electric push rod operates to drive the upper clamping plate and the lower clamping plate at the output end to move downward. After the lower clamping plate moves downward, multiple groups of clamping rods at the bottom thereof and the rubber sleeves on the outer walls thereof move downward to the side of the ball valve housing. Since the fixed positions of the clamping rods are determined according to the ball valve housing, a group of clamping rods are clamped on the outside of the ball valve to limit the ball valve, so that the ball valve is stabilized under the support of the placement rack, the pressure of the lower clamping plate and the clamping of the clamping rods.

[0019] Second, by setting the placement rack, the air groove, the intake pipe, the air pump and the valve, when the ball valve is placed on the placement rack, after the ball valve body is inverted, its pipeline is aligned with the center of the air groove. There are four air grooves, which can simultaneously perform airtightness tests on four ball valves, and the unused air grooves can be sealed with rubber plugs. After the ball valve is fixed, the air pump is controlled to be turned on, and according to the number of ball valves to be tested, the valve on the intake pipe at the corresponding position is opened, so that the gas can enter the air groove through the intake pipe and enter the valve body of the ball valve.

[0020] Thirdly, after a certain number of ball valve tests are carried out by the present invention through setting a filter water tank, a water inlet pipe, a water outlet pipe, a filter plate, a storage box, a blanking pipe and a blanking groove, the water pump on the water outlet pipe is controlled to operate, so that the water in the transparent water tank flows into the filter water tank through the water outlet pipe. After the flowing water is filtered by two filter plates, it is statically placed in the filter water tank. At this time, the second electric push rod is controlled to operate. After the second electric push rod operates, the baffle at the output end is driven to be drawn out from the blanking groove at the bottom of the blanking pipe. After being drawn out, the alum in the storage box falls into the blanking pipe and falls into the water through the blanking groove. The alum adsorbs the impurities in the water, so that the impurities precipitate, and thus the water is purified. After purification, the water pump on the water inlet pipe is controlled to operate, so that the water inlet pipe draws water from above the filter water tank, so that the purified water returns to the transparent water tank again for use. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the front sectional structure of the present invention;

[0023] Figure 3 is a schematic diagram of the clamping structure of the present invention;

[0024] Figure 4 is a schematic diagram of the clamping rod of the present invention;

[0025] Figure 5 is a schematic diagram of the lower clamping plate structure of the present invention;

[0026] Figure 6 is a schematic diagram of the rubber sleeve of the present invention;

[0027] Figure 7 is a top view schematic diagram of the present invention;

[0028] Figure 8 is a side sectional schematic diagram of the present invention;

[0029] Figure 9 is a schematic diagram of the placement rack structure of the present invention;

[0030] Figure 10 is a schematic diagram of the water outlet pipe of the present invention;

[0031] Figure 11 is a schematic diagram of the water filtration structure of the present invention;

[0032] Figure 12 is a schematic diagram of the storage box of the present invention.

[0033] In the figure: 1. Air tightness testing machine; 2. Power supply board; 3. Display screen; 4. Clamping structure; 401. Fixed plate; 402. First electric push rod; 403. Upper clamping plate; 404. Lower clamping plate; 405. Installation block; 406. Threaded rod; 407. Nut sleeve; 408. Clamping rod; 409. Rubber sleeve; 5. Side plate; 6. Inflation assembly; 601. Placing rack; 602. Air groove; 603. Air inlet pipe; 604. Installation ring; 605. Rubber plug; 606. Valve; 607. Air pump; 7. Equipment groove; 8. Transparent water tank; 9. Slide block; 10. Cylinder; 11. Water outlet pipe; 12. Water pump; 13. Water inlet pipe; 14. Water filtering structure; 1401. Water filtering tank; 1402. Tank cover; 1403. Water inlet; 1404. Filter plate; 1405. Storage box; 1406. Sealing cover; 1407. Material discharging pipe; 1408. Material discharging groove; 1409. Second electric push rod; 1410. Baffle plate. Detailed implementation manners

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-6, an automatic test device for the sealing performance of a ball valve, including an airtightness tester 1. A power board 2 is arranged at the top of the airtightness tester 1, and a water filtering structure 14 is arranged inside the airtightness tester 1. A clamping structure 4 is arranged on the power board 2, a side plate 5 is arranged on the clamping structure 4, and an air inflation component 6 is arranged inside the side plate 5. The clamping structure 4 includes a fixing plate 401. A first electric push rod 402 is installed at the bottom end of the fixing plate 401. The output end of the first electric push rod 402 is provided with an upper clamping plate 403. A lower clamping plate 404 is installed at the bottom end of the upper clamping plate 403. Installation blocks 405 are arranged on both sides of the lower clamping plate 404. A threaded rod 406 is clamped inside the lower clamping plate 404. A nut sleeve 407 is sleeved on the outer side of the threaded rod 406. The bottom end of the threaded rod 406 is connected with a clamping rod 408. A rubber sleeve 409 is arranged on the outer wall of the clamping rod 408. An equipment slot 7 is opened inside the airtightness tester 1. A display screen 3 is installed on the power board 2. A transparent water tank 8 is movably arranged inside the equipment slot 7. A cylinder 10 is installed at the bottom end of the transparent water tank 8. Sliders 9 are arranged on both sides of the transparent water tank 8. A water outlet pipe 11 is connected to the rear end of the transparent water tank 8. A water pump 12 is installed on the water outlet pipe 11. A water inlet pipe 13 is arranged on one side of the water outlet pipe 11. A sliding groove is opened on the inner wall of the equipment slot 7. The transparent water tank 8 and the equipment slot 7 are movably connected through the sliders 9 and the sliding groove. The cylinder 10 and the equipment slot 7 are fixedly installed through a base. The two ends of the water outlet pipe 11 and the water inlet pipe 13 respectively penetrate into the inside of the transparent water tank 8 and the water filtering tank 1401. Water pumps 12 are installed on both the water outlet pipe 11 and the water inlet pipe 13. The first electric push rod 402 and the fixing plate 401 are fixedly installed through a mounting seat. The upper clamping plate 403 and the lower clamping plate 404 are fixedly connected through bolts. The threaded rod 406 and the lower clamping plate 404 are clamped and connected through a through slot. The fixing plate 401 and the power board 2 are fixedly installed. The threaded rod 406 and the lower clamping plate 404 are fixedly installed through the nut sleeve 407. The clamping rod 408 and the threaded rod 406 are fixedly connected. The rubber sleeve 409 and the clamping rod 408 are fixedly connected through glue. First, remove the lower clamping plate 404 from the upper clamping plate 403, then place the ball valve on the lower clamping plate 404. According to the arc-shaped outer shell of the ball valve, determine four points and mark them on the lower clamping plate 404. After marking, punch holes at the four points, and then punch the corresponding number of holes according to the number of ball valves to be tested. After punching the holes, pass the threaded rod 406 and the clamping rod 408 through the hole slots, and fix the threaded rod 406 to the lower clamping plate 404 through the nut sleeve 407, so that the clamping rod 408 is fixed to the lower clamping plate 404. Then fix the lower clamping plate 404 to the upper clamping plate 403 through the mounting blocks 405. After placing the ball valve on the placement rack 601, the first electric push rod 402 operates. The internal technology of the first electric push rod 402 is the existing technology. After the first electric push rod 402 operates, it drives the upper clamping plate 403 and the lower clamping plate 404 at the output end to move downward. After the lower clamping plate 404 moves downward, multiple groups of clamping rods 408 at its bottom and the rubber sleeves 409 on their outer walls move downward to the side of the ball valve outer shell.Since the fixed position of the clamping rod 408 is determined corresponding to the ball valve housing, a set of clamping rods 408 is clamped on the outside of the ball valve to limit the ball valve, so that the ball valve is stabilized under the support of the placement rack 601, the pressure of the lower clamping plate 404, and the clamping of the clamping rod 408.

[0036] Please refer to Figures 6-9 , an automatic testing device for the sealing performance of a ball valve. The inflation assembly 6 includes a placement rack 601. An air groove 602 is formed inside the placement rack 601. An air inlet pipe 603 is arranged inside the air groove 602. One end of the air inlet pipe 603 is provided with a mounting ring 604, and the other end of the air inlet pipe 603 is installed with a valve 606. A gas pump 607 is installed at the rear end of the valve 606. A rubber plug 605 is clamped inside the air groove 602. The placement rack 601 is fixedly connected to the side plate 5. The number of the air groove 602, the air inlet pipe 603, and the valve 606 is four. The rubber plug 605 is fixedly sealed with the air groove 602. The air inlet pipe 603 is fixedly connected to the air groove 602 through the mounting ring 604, and the air inlet pipe 603 penetrates into the inside of the gas pump 607. The gas pump 607 is fixedly installed with the power supply board 2 by bolts. When the ball valve is placed on the placement rack 601, after the ball valve body is inverted, its pipeline is aligned with the center of the air groove 602. The number of the air grooves 602 is four, and the airtightness of four ball valves can be tested simultaneously. For the unused air grooves 602, they can be sealed by the rubber plugs 605. After the ball valve is fixed, the gas pump 607 is controlled to be turned on, and according to the number of the tested ball valves, the valves 606 on the air inlet pipes 603 at the corresponding positions are opened, so that the gas can enter the air groove 602 through the air inlet pipe 603 and enter the inside of the ball valve body.

[0037] Please refer to Figures 10-12, an automatic testing device for the sealing performance of a ball valve. The water filtering structure 14 includes a water filtering tank 1401. A tank cover 1402 is snap-fitted to the top of the water filtering tank 1401, and a feeding pipe 1407 is snap-fitted inside the water filtering tank 1401. A filter plate 1404 is installed on the inner wall of the water filtering tank 1401. A water inlet 1403 is provided at the top of the tank cover 1402. A storage box 1405 is fixed to one side of the feeding pipe 1407, and a feeding slot 1408 is opened at the bottom of the feeding pipe 1407. A sealing cover 1406 is connected to the top of the storage box 1405, and a second electric push rod 1409 is installed inside the storage box 1405. A baffle 1410 is provided at the output end of the second electric push rod 1409. The sealing cover 1406 is movably connected to the storage box 1405 through a hinge. The storage box 1405 is fixedly installed with the water filtering tank 1401 through a bracket. The tank cover 1402 is snap-fitted and fixed to the water filtering tank 1401 through a lock. The number of filter plates 1404 is two. An activity slot matching the baffle 1410 is opened inside the feeding pipe 1407, and a clamping slot matching the baffle 1410 is opened inside the feeding slot 1408. After a certain number of ball valve tests, control the water pump 12 on the water outlet pipe 11 to operate, so that the water in the transparent water tank 8 flows into the water filtering tank 1401 through the water outlet pipe 11. After the flowing water is filtered by the two filter plates 1404, it stands still in the water filtering tank 1401. At this time, control the second electric push rod 1409 to operate. The internal technology of the second electric push rod 1409 is the existing technology. After the second electric push rod 1409 operates, it drives the baffle 1410 at the output end to be withdrawn from the feeding slot 1408 at the bottom of the feeding pipe 1407. After being withdrawn, the alum in the storage box 1405 falls into the feeding pipe 1407 and falls into the water through the feeding slot 1408. The alum adsorbs the impurities in the water, causing the impurities to precipitate, so that the water is purified. After purification, control the water pump 12 on the water inlet pipe 13 to operate, so that the water inlet pipe 13 draws water from above the water filtering tank 1401, so that the purified water returns to the transparent water tank 8 again for use.

[0038] Working principle: When the present invention is in use, first remove the lower clamping plate 404 from the upper clamping plate 403, then place the ball valve on the lower clamping plate 404. According to the arc-shaped outer shell of the ball valve, determine four points and mark them on the lower clamping plate 404. After marking, perforate the four points and, according to the number of ball valves to be tested, perforate the corresponding number of holes. After perforation, pass the threaded rod 406 and the clamping rod 408 through the hole slots, and fix the threaded rod 406 to the lower clamping plate 404 through the nut sleeve 407, so that the clamping rod 408 is fixed to the lower clamping plate 404. Then fix the lower clamping plate 404 to the upper clamping plate 403 through the mounting block 405. After placing the ball valve on the placement rack 601, the first electric push rod 402 operates. The internal technology of the first electric push rod 402 is the prior art. After the first electric push rod 402 operates, it drives the upper clamping plate 403 and the lower clamping plate 404 at the output end to move downward. After the lower clamping plate 404 moves downward, multiple groups of clamping rods 408 at its bottom and the rubber sleeves 409 on their outer walls move downward to the side of the ball valve outer shell. Since the fixed positions of the clamping rods 408 are determined according to the corresponding ball valve outer shell, a group of clamping rods 408 are clamped on the outside of the ball valve to limit the ball valve. Thus, the ball valve is stabilized under the support of the placement rack 601, the pressure of the lower clamping plate 404, and the clamping of the clamping rods 408. When the ball valve is placed on the placement rack 601, after inverting the ball valve body, align its pipeline with the center of the air groove 602. There are four air grooves 602, and airtightness tests can be carried out on four ball valves simultaneously. For the unused air grooves 602, they can be sealed with rubber plugs 605. After the ball valve is fixed, control the air pump 607 to open, and according to the number of ball valves to be tested, open the valves 606 on the air inlet pipes 603 at the corresponding positions, so that the gas can enter the air grooves 602 through the air inlet pipes 603 and then enter the inside of the ball valve body. Since the top of the ball valve is sealed by the lower clamping plate 404, the gas accumulates inside the valve body. At this time, control the two cylinders 10 to operate. The cylinders 10 drive the transparent water tank 8 at the output end to move upward through the sliders 9 and the chutes in the equipment groove 7 until after the transparent water tank 8 moves upward, the water body inside completely wraps the ball valve. Then the transparent water tank 8 stops moving upward. At this time, the gas inside the ball valve body is saturated. If there are leakage points in the ball valve, the excess gas will spray out through the leakage points of the ball valve and form bubbles in the water body. Then the staff can determine the position of the leakage point through the appearance and position of the bubbles. If no bubbles appear during continuous inflation of the ball valve, it means the airtightness is very good. After a certain number of ball valve tests, control the water pump 12 on the water outlet pipe 11 to operate, so that the water body in the transparent water tank 8 flows into the filter water tank 1401 through the water outlet pipe 11. The flowing water body is filtered by the two filter plates 1404 to intercept large-particle impurities, and then stands still in the filter water tank 1401. At this time, control the second electric push rod 1409 to operate. The internal technology of the second electric push rod 1409 is the prior art. After the second electric push rod 1409 operates, it drives the baffle 1410 at the output end to be withdrawn from the material discharge slot 1408 at the bottom of the material discharge pipe 1407.After extraction, the alum in the storage box 1405 falls into the blanking pipe 1407 and then falls into the water body through the blanking chute 1408. The alum adsorbs the impurities in the water body, causing the impurities to precipitate, thereby purifying the water body. After purification, the water pump 12 on the water inlet pipe 13 is controlled to operate, so that the water inlet pipe 13 extracts the water body from above the filter water tank 1401, and the purified water body returns to the transparent water tank 8 for use again, which is convenient for the clean water body to better present the test effect.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An automated ball valve sealing performance testing device, comprising an airtightness testing machine (1), characterized in that: A power board (2) is arranged at the top of the air tightness test machine (1), and a water filter structure (14) is arranged on the inner side of the air tightness test machine (1); a clamping structure (4) is arranged on the power board (2), a side plate (5) is arranged on the clamping structure (4), and an inflatable component (6) is arranged on the inner side of the side plate (5); The clamping structure (4) comprises a fixing plate (401), a first electric push rod (402) being mounted at the bottom end of the fixing plate (401), an upper clamping plate (403) being arranged at the output end of the first electric push rod (402), a lower clamping plate (404) being mounted at the bottom end of the upper clamping plate (403), mounting blocks (405) being arranged on both sides of the lower clamping plate (404), a threaded rod (406) being clamped on the inner side of the lower clamping plate (404), a nut sleeve (407) being sleeved on the outer side of the threaded rod (406), a clamping rod (408) being connected to the bottom end of the threaded rod (406), and a rubber sleeve (409) being arranged on the outer wall of the clamping rod (408); The inflation component (6) comprises a placement rack (601), an air groove (602) is provided on the inner side of the placement rack (601), an air inlet pipe (603) is provided on the inner side of the air groove (602), a mounting ring (604) is provided on one end of the air inlet pipe (603), a valve (606) is installed on the other end of the air inlet pipe (603), an air pump (607) is installed on the rear end of the valve (606), and a rubber plug (605) is engaged on the inner side of the air groove (602); The water filtering structure (14) comprises a water filtering box (1401), a box cover (1402) is engaged at the top of the water filtering box (1401), and a feeding pipe (1407) is engaged on the inner side of the water filtering box (1401), a filter plate (1404) is installed on the inner wall of the water filtering box (1401), a water inlet (1403) is arranged at the top of the box cover (1402), a material storage box (1405) is fixed to one side of the feeding pipe (1407), and a feeding trough (1408) is provided at the bottom of the feeding pipe (1407), a sealing cover (1406) is connected to the top of the material storage box (1405), and a second electric push rod (1409) is installed inside the material storage box (1405), and a baffle (1410) is arranged at the output end of the second electric push rod (1409).

2. The ball valve sealing performance automatic testing equipment according to claim 1 is characterized by: The air tightness test machine (1) has an equipment slot (7) on the inner side, a display screen (3) is installed on the power board (2), a transparent water tank (8) is movably installed on the inner side of the equipment slot (7), a cylinder (10) is installed on the bottom end of the transparent water tank (8), and sliders (9) are installed on both sides of the transparent water tank (8), a water outlet pipe (11) is connected to the rear end of the transparent water tank (8), a water pump (12) is installed on the water outlet pipe (11), and the water outlet pipe (11) is connected to the rear end of the transparent water tank (8). ) is provided with a water inlet pipe (13) on one side, a slide groove is provided on the inner wall of the equipment trough (7), and the transparent water tank (8) and the equipment trough (7) are movably connected via a slider (9) and the slide groove, the cylinder (10) and the equipment trough (7) are fixedly installed via a base, and both ends of the water outlet pipe (11) and the water inlet pipe (13) respectively penetrate into the inner side of the transparent water tank (8) and the water filter tank (1401), and a water pump (12) is installed on both the water outlet pipe (11) and the water inlet pipe (13).

3. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The first electric push rod (402) and the fixed plate (401) are fixedly mounted via a mounting seat, the upper clamping plate (403) and the lower clamping plate (404) are fixedly connected via bolts, the threaded rod (406) and the lower clamping plate (404) are connected via slotted engagement, and the fixed plate (401) and the power supply board (2) are fixedly mounted.

4. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The threaded rod (406) and the lower clamping plate (404) are fixedly installed via a nut sleeve (407), the clamping rod (408) is fixedly connected to the threaded rod (406), and the rubber sleeve (409) and the clamping rod (408) are fixedly connected via glue.

5. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The placement rack (601) is fixedly connected to the side plate (5), the number of the air groove (602), the air inlet pipe (603) and the valve (606) is four, and the rubber plug (605) is sealed and fixed to the air groove (602).

6. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The air intake pipe (603) is fixedly connected to the air groove (602) via a mounting ring (604), and the air intake pipe (603) penetrates to the inner side of the air pump (607). The air pump (607) is fixedly mounted to the power supply board (2) via bolts.

7. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The sealing cover (1406) is movably connected to the material storage box (1405) via a hinge, and the material storage box (1405) and the water filter box (1401) are fixedly mounted via a bracket.

8. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The box cover (1402) and the water filter box (1401) are fixed by means of a lock, and the number of the filter plates (1404) is two.

9. The ball valve sealing performance automated testing device according to claim 1, characterized in that: The inner side of the material discharge pipe (1407) is provided with a movable groove matching the baffle (1410), and the inner side of the material discharge trough (1408) is provided with a clamping groove matching the baffle (1410).

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