An automatic test equipment for ball valve sealing performance

Abstract

The present invention discloses an automatic test device for ball valve sealing performance, which relates to the field of ball valve detection, including an air tightness tester, wherein a power supply board is arranged at the top of the air tightness tester, and a water filter structure is arranged at the inner side of the air tightness tester, and a clamping structure is arranged on the power supply board. The present invention is provided with a lower card plate, a first electric push rod, a threaded rod, a clamping rod and a rubber sleeve, and a plurality of threaded rods and the clamping rod are fixed on the lower card plate in advance. After the ball valve is placed on a placement rack, the first electric push rod is operated to drive the upper card plate and the lower card plate at the output end to move downward. After the lower card plate moves downward, the plurality of groups of clamping rods at the bottom thereof and the rubber sleeves on the outer wall thereof move downward to the side of the ball valve housing. Since the fixed position of the clamping rod is determined according to the corresponding determination of the ball valve housing, a group of clamping rods is clamped on the outer side 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 card plate and the clamping of the clamping rod.

Description

Technical Field

[0001] The invention relates to the field of ball valve detection, in particular to an automatic testing device for ball valve sealing performance. Background Art

[0002] Ball valves are valves whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. They can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat welded with cemented carbide. It is particularly suitable for media containing fibers, tiny solid particles, etc. Since ball valves often need to transport tiny substances, sealing is an important factor in judging whether the ball valve is qualified. Therefore, during the production process of the ball valve, the sealing of the ball valve needs to be tested by a testing device to determine whether the ball valve is qualified.

[0003] The patent document with the prior art publication number CN116858446A provides a device for testing the sealing performance of ball valves. A testing mechanism is set on a hollow plate, and the top pad and the ball valve with detection are driven to rotate into a fixed frame for testing through the rotation of the circular plate. At the same time, two positioning grooves are provided on the top of the pad, so that two ball valves can be tested at the same time, and the circular plate drives the tested ball valve to rotate out of the fixed frame during the rotation process. At this time, the tested ball valve can be removed from the top of the pad, so that a more automated sealing performance test of the ball valve is achieved, which is convenient for testing two ball valves at the same time and improves work efficiency. However, when the patent CN216390228U is used, the ball valve is easy to shake or even fall during detection, and the testing equipment cannot effectively clamp and fix the ball valve. Therefore, an automated testing device for the sealing performance of ball valves is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide an automated testing device for the sealing performance of a ball valve to solve the problems that the existing ball valve is prone to shaking or even falling during testing, the testing equipment is unable to effectively clamp and fix the ball valve, the current air tightness testing equipment can only test one ball valve at a time, which is inefficient, and when performing a water tightness test, dust and debris on the surface and inside of the ball valve easily enter the water body, causing turbidity in the water body and affecting the observation of the air tightness test results.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated testing device for the sealing performance of a ball valve, comprising 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 on the inner side of the airtightness testing machine, a clamping structure is arranged on the power supply board, a side panel is arranged on the clamping structure, and an inflation component is arranged on the inner side of the side panel.

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

[0007] The inflation component includes a placement rack, an air groove is opened on the inner side of the placement rack, an air intake pipe is arranged on the inner side of the air groove, a mounting ring is arranged on one end of the air intake pipe, and a valve is installed on the other end of the air intake pipe, an air pump is installed at the rear end of the valve, and a rubber plug is engaged with the inner side of the air groove.

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

[0009] Preferably, an equipment slot is provided on the inner side of the air tightness testing machine, a display screen is installed on the power board, a transparent water tank is movably provided on the inner side of the equipment slot, a cylinder is installed at the bottom end of the transparent water tank, and sliders are provided 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 provided on one side of the water outlet pipe, a slide groove is provided on the inner wall of the equipment slot, and the transparent water tank and the equipment slot are movably connected through the slider and the slide groove, the cylinder and the equipment slot are fixedly installed through the base, and the two ends of the water outlet pipe and the water inlet pipe respectively penetrate into the inner side of the transparent water tank and the water filter tank, and water pumps are installed on the water outlet pipe and the water inlet pipe.

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

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

[0012] Preferably, the placement rack is fixedly connected to the side plate, the number of the air groove, the air inlet pipe and the valve is four, and the rubber plug is sealed and fixed to the air groove.

[0013] Preferably, the air intake pipe is fixedly connected to the air tank via a mounting ring, and the air intake pipe penetrates to the inner side of the air pump, and the air pump is fixedly mounted to the power board via bolts.

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

[0015] Preferably, the box cover and the water filter box are fixed by locking together through a lock, and the number of the filter plates is two.

[0016] Preferably, a movable groove matching the baffle is provided on the inner side of the feed tube, and a clamping groove matching the baffle is provided on the inner side of the feed chute.

[0017] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention sets a lower clamping plate, a first electric push rod, a threaded rod, a clamping rod and a rubber sleeve, and fixes multiple threaded rods and the clamping rod on the lower clamping plate in advance. After the ball valve is placed on the placement rack, the first electric push rod runs 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 its outer wall move downward to the side of the ball valve housing. Since the fixed position of the clamping rod is determined according to the corresponding ball valve housing, a group of clamping rods 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, the pressure of the lower clamping plate and the clamping of the clamping rod.

[0018] Second, the present invention sets a placement rack, an air groove, an air intake pipe, an air pump and a valve. When the ball valve is placed on the placement rack, the ball valve body is inverted so that its pipeline is aligned with the center of the air groove. There are four air grooves, and the air tightness test of four ball valves can be performed at the same time. The unused air grooves can be sealed with rubber plugs. After the ball valve is fixed, the air pump is controlled to open, and according to the number of ball valves tested, the valves on the air intake pipes at corresponding positions are opened, so that the gas can enter the air groove through the air intake pipe and enter the inside of the valve body of the ball valve.

[0019] Third, the present invention sets a water filter box, a water inlet pipe, a water outlet pipe, a filter plate, a material storage box, a feed pipe and a feed trough, and after a certain number of ball valve tests, controls the water pump on the water outlet pipe to operate, so that the water in the transparent water tank flows into the water filter box through the water outlet pipe. The water flowing in is filtered by two filter plates and then stands in the water filter box. At this time, the second electric push rod is controlled to operate, and after the operation of the second electric push rod, it drives the baffle at the output end to be drawn out from the feed trough at the bottom of the feed pipe. After being drawn out, the alum in the material storage box falls into the feed pipe and falls into the water through the feed trough. The alum absorbs impurities in the water, precipitates the impurities, and forms precipitation, so that 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 water filter box, so that the purified water returns to the transparent water tank for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the present invention; Figure 3 It is a schematic diagram of the clamping structure of the present invention; Figure 4 It is a schematic diagram of the clamping rod of the present invention; Figure 5 It is a schematic diagram of the structure of the lower card board of the present invention; Figure 6 It is a schematic diagram of the rubber sleeve of the present invention; Figure 7 It is a top view schematic diagram of the present invention; Figure 8 It is a side sectional schematic diagram of the present invention; Fig. 9 It is a schematic diagram of the structure of the placement rack of the present invention; Fig.10 It is a schematic diagram of a water outlet pipe of the present invention; Fig.11 It is a schematic diagram of the water filtration structure of the present invention; Fig.12 It is a schematic diagram of a material storage box of the present invention.

[0021] In the figure: 1. air tightness tester; 2. power board; 3. display screen; 4. clamping structure; 401. fixing plate; 402. first electric push rod; 403. upper clamping plate; 404. lower clamping plate; 405. mounting block; 406. threaded rod; 407. nut sleeve; 408. clamping rod; 409. rubber sleeve; 5. side panel; 6. inflatable component; 601. placement rack; 602. air tank; 603. air inlet pipe; 604. mounting ring; 605. rubber plug; 606, valve; 607, air pump; 7, equipment slot; 8, transparent water tank; 9, slider; 10, cylinder; 11, water outlet pipe; 12, water pump; 13, water inlet pipe; 14, water filtration structure; 1401, water filter box; 1402, box cover; 1403, water inlet; 1404, filter plate; 1405, material storage box; 1406, sealing cover; 1407, material discharge pipe; 1408, material discharge chute; 1409, second electric push rod; 1410, baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 6, an automated testing device for the sealing performance of a ball valve, comprising an airtightness testing machine 1, a power supply board 2 is arranged at the top of the airtightness testing machine 1, and a water filtering structure 14 is arranged on the inner side of the airtightness testing machine 1, a clamping structure 4 is arranged on the power supply board 2, a side plate 5 is arranged on the clamping structure 4, 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 is installed at the bottom end of the fixing plate 401, an upper clamping plate 403 is arranged at the output end of the first electric push rod 402, a lower clamping plate 404 is installed at the bottom end of the upper clamping plate 403, mounting blocks 405 are arranged on both sides of the lower clamping plate 404, a threaded rod 406 is clamped on the inner side of the lower clamping plate 404, a nut sleeve 407 is sleeved on the outer side of the threaded rod 406, and the threaded rod 4 06 is connected with a clamping rod 408 at the bottom end, and a rubber sleeve 409 is provided on the outer wall of the clamping rod 408. An equipment slot 7 is provided on the inner side of the air tightness testing machine 1, and a display screen 3 is installed on the power supply board 2. A transparent water tank 8 is movably provided on the inner side of the equipment slot 7. A cylinder 10 is installed at the bottom end of the transparent water tank 8, and sliders 9 are provided 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 a water inlet pipe 13 is provided on one side of the water outlet pipe 11. A slide groove is provided on the inner wall of the equipment slot 7, and the transparent water tank 8 is movably connected to the equipment slot 7 through the slider 9 and the slide groove. The cylinder 10 is fixedly installed with the equipment slot 7 through the base, and the two ends of the water outlet pipe 11 and the water inlet pipe 13 respectively penetrate into the transparent water tank 8 and the water filter tank 14. 01, and the water pump 12 is installed on the water outlet pipe 11 and the water inlet pipe 13, the first electric push rod 402 is fixedly installed with the fixing plate 401 through the mounting seat, the upper card plate 403 and the lower card plate 404 are fixedly connected by bolts, the threaded rod 406 and the lower card plate 404 are connected by slotting, the fixing plate 401 is fixedly installed with the power board 2, the threaded rod 406 and the lower card plate 404 are fixedly installed by the nut sleeve 407, the clamping rod 408 is fixedly connected with the threaded rod 406, and the rubber sleeve 409 and the clamping rod 408 are fixedly connected by glue, first remove the lower card plate 404 from the upper card plate 403, and then place the ball valve on the lower card plate 404, determine four points according to the arc-shaped shell of the ball valve, and mark them on the lower card plate 404. After marking, Four points are punched, and the corresponding number of holes is punched according to the number of ball valves to be tested. After punching, the threaded rod 406 and the clamping rod 408 are passed through the hole groove, and the threaded rod 406 is fixed 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, and then the lower clamping plate 404 is fixed to the upper clamping plate 403 through the mounting block 405. After the ball valve is placed on the placement rack 601, the first electric push rod 402 is operated. The internal technology of the first electric push rod 402 is the existing technology. After the first electric push rod 402 is operated, 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, the multiple groups of clamping rods 408 and the outer wall rubber sleeve 409 at its bottom move downward to the side of the ball valve shell.Since the fixed position of the clamping rod 408 is determined according to the corresponding position of the ball valve shell, a set of clamping rods 408 is clamped on the outside of the ball valve to limit the position of the ball valve, so that the ball valve is firmly fixed under the support of the placement rack 601, the pressure of the lower clamping plate 404 and the clamping of the clamping rods 408.

[0024] See also Figure 6-Figure 9 , an automatic testing device for the sealing performance of a ball valve, the inflatable component 6 includes 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, and 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, a rubber plug 605 is engaged with the inner side of 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 sealed and fixed to the air groove 602, the air inlet pipe 603 and the air groove 602 are connected by the mounting ring 604 is fixedly connected, and the air inlet pipe 603 runs through the inner side of the air pump 607. The air pump 607 and the power board 2 are fixedly installed by bolts. When the ball valve is placed on the placement rack 601, the ball valve body is inverted so that its pipeline is aligned with the center of the air groove 602. There are four air grooves 602, and the air tightness test of four ball valves can be carried out at the same time. The unused air grooves 602 can be sealed by the rubber plug 605. After the ball valve is fixed, the air pump 607 is controlled to open, and according to the number of ball valves tested, the valve 606 on the air inlet pipe 603 at the corresponding position is opened, so that the gas can enter the air groove 602 through the air inlet pipe 603 and enter the valve body of the ball valve.

[0025] See also Figure 10-12, an automatic test device for the sealing performance of a ball valve, the water filtering structure 14 comprises a water filtering box 1401, a box cover 1402 is clamped on the top of the water filtering box 1401, and a feeding pipe 1407 is clamped 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 on the top of the box cover 1402, a material storage box 1405 is fixed on one side of the feeding pipe 1407, and a feeding trough 1408 is arranged at the bottom of the feeding pipe 1407, and the top of the storage box 1405 is connected to the bottom of the water filtering box 1401. A sealing cover 1406 is connected, and a second electric push rod 1409 is installed inside the material storage box 1405, and a baffle 1410 is provided at the output end of the second electric push rod 1409. The sealing cover 1406 and the material storage box 1405 are movably connected through a hinge, the material storage box 1405 and the filter box 1401 are fixedly installed through a bracket, and the box cover 1402 and the filter box 1401 are fixed by a lock snap, the number of filter plates 1404 is two, and a movable groove matching the baffle 1410 is opened on the inner side of the discharge pipe 1407. The inner side of the feed chute 1408 is provided with a slot matching the baffle 1410. After a certain number of ball valve tests, the water pump 12 on the water outlet pipe 11 is controlled to operate, so that the water in the transparent water tank 8 flows into the filter water box 1401 through the water outlet pipe 11. The inflowing water is filtered by the two filter plates 1404 and then remains in the filter water box 1401. At this time, the second electric push rod 1409 is controlled 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 output The baffle 1410 at the outlet end is drawn out from the discharge trough 1408 at the bottom of the discharge pipe 1407. After being drawn out, the alum in the storage box 1405 falls into the discharge pipe 1407 and falls into the water body through the discharge trough 1408. The alum absorbs impurities in the water body, causing the impurities to precipitate and form a 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 draws water from above the filter tank 1401, so that the purified water returns to the transparent water tank 8 for use.

[0026] Working principle: When the present invention is used, first remove the lower card plate 404 from the upper card plate 403, and then place the ball valve on the lower card plate 404, determine four points according to the arc-shaped shell of the ball valve, and mark them on the lower card 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, pass the threaded rod 406 and the clamping rod 408 through the hole groove, and fix the threaded rod 406 to the lower card plate 404 through the nut sleeve 407, so that the clamping rod 408 is fixed to the lower card plate 404, and then fix the lower card plate 404 to the upper card plate 403 through the mounting block 405. After the ball valve is placed on the placement rack 601, the first electric push rod 402 runs, and the internal technology of the first electric push rod 402 is the existing technology. After the first electric push rod 402 is in operation, 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, the multiple groups of clamping rods 408 at its bottom and the outer wall rubber sleeve 409 thereof move downward to the side of the ball valve housing. Since the fixed position of the clamping rods 408 is determined according to the corresponding ball valve housing, a group of clamping rods 408 is clamped on the outer side 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 rods 408. When the ball valve is placed on the placement rack 601, the ball valve body is inverted so that its pipeline is aligned with the center of the air groove 602. There are four air grooves 602, and the air tightness test of four ball valves can be performed at the same time. 02 can be sealed by rubber plug 605. After the ball valve is fixed, control the air pump 607 to open, and according to the number of ball valves tested, open the valve 606 on the corresponding position of the air inlet pipe 603, so that the gas can enter the air tank 602 through the air inlet pipe 603 and enter the valve body of the ball valve. Since the top of the ball valve is sealed by the lower clamping plate 404, the gas gathers inside the valve body. At this time, control the two cylinders 10 to run, and the cylinder 10 drives the output end transparent water tank 8 to move up in the equipment slot 7 through the slider 9 and the slide groove, until the transparent water tank 8 moves up and the water inside it completely wraps the ball valve, then the transparent water tank 8 stops moving up. At this time, the gas inside the ball valve body is saturated. If there is a leak in the ball valve, the excess gas will be ejected through the leak in the water. If bubbles are formed in the ball valve, the staff can determine the location of the leakage point by the appearance and location of the bubbles. If no bubbles appear in the ball valve under continuous inflation, it means that the air tightness is very good. After a certain number of ball valve tests, the water pump 12 on the outlet pipe 11 is controlled to run, so that the water in the transparent water tank 8 flows into the filter water box 1401 through the outlet pipe 11. The inflowing water is filtered by the two filter plates 1404 to intercept large particles of impurities, and then stands in the filter water box 1401. At this time, the second electric push rod 1409 is controlled to run. The internal technology of the second electric push rod 1409 is the existing technology. After the second electric push rod 1409 runs, it drives the baffle 1410 at the output end to be drawn out from the discharge trough 1408 at the bottom of the discharge pipe 1407.After being drawn out, the alum in the storage box 1405 falls into the feed pipe 1407, and falls into the water body through the feed trough 1408. The alum absorbs impurities in the water body, causing the impurities to precipitate and form a 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 draws water from the top of the water filter box 1401, so that the water body returns to the transparent water tank 8 again after purification for use, so that the clean water body can better present the test effect.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

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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