A valve sealing performance testing device

Abstract

This application provides a valve sealing performance testing device, belonging to the field of testing devices. The device includes a base frame and a testing assembly. The testing assembly includes a rotating frame, a rotating connecting pipe, a rotating water supply pipe, a return box, a pressurizing piston, and a pressure sensor. One end of the rotating connecting pipe is equipped with bolts and nuts, with multiple bolts and nuts provided. The bolts are fixedly connected to the rotating connecting pipe, and the nuts are threadedly connected to the bolts. The other side of the pressurizing piston is fixedly connected to the outside of the rotating water supply pipe. The pressure sensor is fixedly connected to the rotating connecting pipe, and its detection end is inserted inside the rotating connecting pipe. The entire operation process realizes water recycling and rapid replenishment / drainage, significantly shortening the time spent on water injection and drainage, and significantly improving the efficiency of valve sealing performance testing.

Description

Technical Field

[0001] This application relates to the field of testing equipment, and more specifically, to a valve sealing performance testing device. Background Technology

[0002] Valve sealing test is a key testing step to verify that a valve can prevent media leakage under specified pressure and temperature conditions. Its core purpose is to ensure the media isolation effect when the valve is closed and to identify sealing defects in the manufacturing process.

[0003] In valve sealing tests, water-based testing devices are commonly used: the valve to be tested is connected to the test pipeline, clean water is injected into the pipeline and a specified pressure is applied, and the sealing performance is verified by observing whether there is leakage or seepage. However, there is a significant efficiency bottleneck in the actual testing process: since the test pipelines are mostly horizontally arranged, after each test, the water in the pipeline must be completely drained before the tested valve can be disassembled and a new valve to be tested can be installed. This results in frequent repetition of water injection and drainage operations throughout the testing process, and these two procedures are time-consuming, directly reducing the overall testing efficiency. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a valve sealing performance testing device. This device uses a rotating frame to drive the rotating connecting pipe and the rotating water supply pipe to tilt synchronously, optimizing the drainage process after testing and the water replenishment process for the next test. After testing, the return box is rotated below the rotating water supply pipe. Utilizing the pipe's tilt angle, the water accumulated in the pipe quickly flows back into the return box. At this time, the port of the rotating connecting pipe is in a high position, preventing water overflow when disassembling the valve, and most of the water remains inside the pipe. After replacing the valve, simply use the rotating frame to reset the rotating connecting pipe and the rotating water supply pipe to a horizontal state, and simultaneously rotate the return box above the rotating water supply pipe, allowing the water in the box to quickly flow back into the pipe. This design significantly reduces the time spent on repeated water filling and thorough drainage, significantly improving the overall efficiency of valve sealing performance testing.

[0005] A valve sealing performance testing device according to an embodiment of this application includes: a base frame and a testing assembly. The testing assembly includes a rotating frame, a rotating connecting pipe, a rotating water supply pipe, a reflux chamber, a pressure piston, and a pressure sensor. One end of the rotating connecting pipe is provided with a bolt and a nut, and multiple bolts and nuts are provided. The bolts are fixedly connected to the rotating connecting pipe, and the nuts are threadedly connected to the bolts. The bottom of the rotating frame is rotatably connected to the upper part of the base frame. The middle part of the rotating connecting pipe is rotatably connected to the rotating end of the rotating frame. One side of the rotating connecting pipe is connected to the rotating water supply pipe. One side of the pipe is rotatably connected, and one side of the valve is fixedly installed on the other side of the rotatable connecting pipe by the bolt and the nut. The middle part of the rotatable water supply pipe is rotatably connected to one side of the rotating end of the rotating frame. The return box is fixedly connected to one side of the rotatable water supply pipe and is connected to one side of the rotatable water supply pipe. One side of the pressure piston is slidably connected to the inside of the other side of the rotatable water supply pipe, and the other side of the pressure piston is fixedly connected to the outside of the rotatable water supply pipe. The pressure sensor is fixedly connected to the rotatable connecting pipe, and the detection end of the pressure sensor is inserted inside the rotatable connecting pipe.

[0006] In addition, a valve sealing performance testing device according to an embodiment of this application also has the following additional technical features:

[0007] According to this application, the rotating frame includes a first telescopic member and a first frame body. The end of the first telescopic member is rotatably connected to the base frame, the output end of the first telescopic member is rotatably connected to one side of the first frame body, and the bottom of the first frame body is rotatably connected to the base frame.

[0008] According to this application, the rotating connecting pipe includes a first motor and a first pipe body. The first motor is fixedly connected to the first frame, the middle part of the first pipe body is rotatably connected to the first frame, and the output end of the first motor is drivenly connected to the first pipe body.

[0009] According to this application, the first motor output end is provided with a first gear, the first tube body is provided with a first gear ring, and the first gear is meshed with the first gear ring.

[0010] According to this application, a flange is provided on one side of the first pipe body, the bolt passes through the inside of the flange, and reinforcing ribs are provided on the outside of the first pipe body.

[0011] According to this application, the rotating water supply pipe includes a second motor and a second pipe body. The second motor is fixedly connected to the first frame, the output end of the second motor is drivenly connected to the second pipe body, the middle part of the second pipe body is rotatably connected to the first frame, and one side of the first pipe body is rotatably connected to one side of the second pipe body in a sealed manner.

[0012] According to this application, the output end of the second motor is provided with a second gear, the second tube is provided with a second gear ring, and the second gear is meshed with the second gear ring.

[0013] According to this application, a first air inlet pipe is provided on one side of the second pipe body, and a first solenoid valve is provided outside the first air inlet pipe. A connecting pipe is provided on the other side of the second pipe body, and a second solenoid valve is provided outside the connecting pipe. The other end of the connecting pipe is connected to one side of the return box. A second air inlet pipe is provided on the other side of the return box, and a third solenoid valve is provided outside the second air inlet pipe.

[0014] According to this application, a sealing connector is provided on one side of the first pipe body, and a connecting groove is provided on one side of the second pipe body, wherein the sealing connector is rotatably connected inside the connecting groove.

[0015] According to this application, the pressurizing piston includes a second telescopic member and a piston plate. A limit rod is provided on one side of the piston plate. The end of the second telescopic member is fixedly connected to the outside of one side of the second tube body. The output end of the second telescopic member is fixedly connected to one side of the piston plate. The piston plate is slidably connected to the inside of the second tube body.

[0016] In valve sealing testing, the alignment and bolt tightening processes during valve installation are poorly mechanized, resulting in high labor intensity, low operational efficiency, and consequently reduced overall testing efficiency.

[0017] According to this application, a fixing component is also included, comprising a drive component, a turning sleeve, a lifting telescopic frame, a rotating threaded rod, a limiting frame, a first linear slide rail, a double lifting frame, an adjusting frame, and a gripper. One side of the drive component is fixedly connected to the telescopic end of the lifting telescopic frame, and the rotating end of the drive component is throttlely connected to the turning sleeve. A magnetic block is provided inside the turning sleeve, and the nut is made of magnetic metal. The turning sleeve is rotatably connected to the telescopic end of the lifting telescopic frame, and the turning sleeve is matched with the nut. The rotating threaded rod is rotatably connected to one side of the limiting frame, and the threaded end of the rotating threaded rod is matched with the nut. The nut is slidably fitted with the limiting frame. The lifting end of the lifting telescopic frame is slidably connected to one side of the rotating end of the rotating frame. The first linear slide rail is slidably connected to the base frame, and the sliding end of the first linear slide rail is fixedly connected to the bottom of one side of the double lifting frame. The other side of the double lifting frame is rotatably connected to one side of the rotating end of the adjusting frame. Two grippers are provided, and the grippers are fixedly connected to the adjusting end of the adjusting frame.

[0018] In use, the sliding end of the first linear guide rail drives the double lifting frame to move horizontally. The lifting ends of the double lifting frames synchronously adjust the height and position of the adjusting frame. The adjusting frame drives the two grippers to complete the movement, lifting, and rotation actions, achieving precise gripping of the valve. Subsequently, the grippers drive the valve to complete the integrated operation of lifting, horizontal movement, and rotation, precisely aligning one side of the valve with the rotating connecting pipe, and fitting the corresponding valve interface onto the outside of the preset bolt. At this time, the lifting and telescopic ends of the lifting and telescopic frame work together to drive the rotating sleeve to move, so that it is fitted onto the outside of the nut on one side of the rotating threaded rod. The rotating threaded rod is started. Since the nut cannot rotate due to the constraint of the limiting frame, it is guided by the rotational driving force of the threaded rod. The sleeve is tightened internally to complete disassembly. Once a single nut is stored in the tightening sleeve, the lifting and telescopic frame works together again to move the nut to the outside of the bolt at the valve connection and insert it. The drive unit drives the tightening sleeve to rotate, achieving threaded fastening between the nut and the bolt. By installing multiple nuts one by one in this process, the valve can be firmly fixed to one end of the rotating connecting pipe. After the inspection is completed, the drive unit reverses to drive the tightening sleeve to disassemble the nuts one by one and move them to one end of the rotating threaded rod. The nuts are stored for reuse by rotating the threaded rod. The entire process of valve gripping, alignment, nut disassembly and assembly and storage is fully mechanized, completely replacing manual operation and greatly improving the automation level and overall efficiency of the inspection process.

[0019] According to this application, the driving component includes a blower, an air pump, and a drive shaft. The air pump is fixedly connected to the upper part of the rotating frame, the blower is fixedly connected to the telescopic end of the lifting telescopic frame, the drive shaft and the turning sleeve are both rotatably connected to the telescopic end of the lifting telescopic frame, the output end of the air pump is connected to the blower, the output end of the blower is drivenly connected to the drive shaft, and the drive shaft is drivenly connected to the turning sleeve.

[0020] According to this application, the lifting telescopic frame includes a third motor, a first lead screw, a first slider, a second frame, a third frame, and a third telescopic component. The third motor is fixedly connected to the rotating frame, and the output end of the third motor is fixedly connected to one end of the first lead screw. The first lead screw is rotatably connected to the rotating frame, and the first slider is slidably connected to the rotating frame. The first lead screw is threadedly connected to the first slider. One end of the third frame and one end of the third telescopic component are both fixedly connected to one side of the first slider. The second frame is slidably connected to the interior of the third frame. The output end of the third telescopic component is fixedly connected to the second frame. A fourth motor is provided on one side of the rotating threaded rod, and the fourth motor is fixedly connected to the rotating frame. The output end of the fourth motor is fixedly connected to one end of the rotating threaded rod.

[0021] According to this application, the first linear slide rail includes a fifth motor, a second lead screw, and a second slider. The fifth motor is fixedly connected to the base frame, the output end of the fifth motor is fixedly connected to one end of the second lead screw, the second lead screw is rotatably connected to the base frame, the second slider is slidably connected to the base frame, and the second lead screw is threadedly connected to the second slider.

[0022] According to this application, the dual lifting frame includes a fourth frame, a fifth frame, a fourth telescopic member, a sixth frame, a seventh frame, a fifth telescopic member, an eighth frame, a ninth frame, and a sixth telescopic member. The bottoms of the fifth frame and the fourth telescopic member are fixedly connected to the upper part of the second slider. The fourth frame is slidably connected to the interior of the fifth frame. The output end of the fourth telescopic member and the upper part of the fourth frame are fixedly connected to the seventh frame. The sixth frame is slidably connected to the seventh frame. The output end of the fifth telescopic member and one side of the sixth frame are fixedly connected to the ninth frame. The eighth frame is slidably connected to the ninth frame. The output end of the sixth telescopic member is fixedly connected to the eighth frame.

[0023] According to this application, the adjusting frame includes a sixth motor, a tenth frame, a seventh motor, and an eleventh frame. The gripper's gripping end is provided with a gripping sleeve. The sixth motor is fixedly connected to the eighth frame, and the output end of the sixth motor is drivenly connected to the tenth frame. The tenth frame is rotatably connected to the eighth frame. The seventh motor is fixedly connected to the eleventh frame, and the eleventh frame is rotatably connected to the tenth frame. The output end of the seventh motor is fixedly connected to the tenth frame, and the gripper is fixedly connected to the eleventh frame.

[0024] After the sealing test of liquid medium valves, liquid is easily left inside the valve. If the valve is directly packaged, stored and transported, the residual liquid will not only cause rust inside the valve, but also easily attract dust and form dirt, affecting the subsequent performance and appearance quality of the valve. The existing testing process lacks a targeted solution for handling residual liquid, and there is a clear need for improvement.

[0025] According to this application, it also includes a loading and unloading assembly, which includes a second linear slide rail, a third linear slide rail, a positioning ring, an elastic frame, a micro switch, a blower, and a spray curing agent component. The second linear slide rail and the third linear slide rail are both slidably connected to the base frame. The positioning ring is fixedly connected to the sliding end of the third linear slide rail. The elastic end of the elastic frame is slidably connected to the inner side of the positioning ring. The micro switch is fixedly connected inside the positioning ring. One bottom side of the elastic frame is located above the micro switch and can touch the upper part of the micro switch. The output end of the blower is located inside the positioning ring. The spray curing agent component has two output ends, one of which is located inside the positioning ring, and the other is located above the positioning ring.

[0026] After the valve is disassembled from the rotary connecting pipe, the sliding end of the first linear slide rail is linked to the double lifting frame and the adjusting frame. The gripper picks up the valve and precisely flips it so that the liquid inlet side of the valve, which was originally connected to the rotary connecting pipe, faces downwards and is embedded inside the positioning ring. Under the action of gravity, the valve presses down on the elastic end of the elastic frame, triggering the bottom micro switch, which starts the blower. After drawing in external air and heating it, the blower delivers hot air to the inside of the positioning ring and blows it into the valve to achieve rapid air drying. At the same time, the upper structure of the spray curing agent component is inserted into the top of the valve. On the one hand, it plays a supporting and positioning role to prevent the valve from tipping over. On the other hand, its built-in nozzle extends into the upper part of the valve's inner side and sprays the curing agent into the air-dried valve interior simultaneously. During the entire unloading process, the air drying of residual liquid and internal curing treatment are completed simultaneously, effectively avoiding the valve from rusting and dust accumulation due to residual liquid, and ensuring the valve's subsequent performance and appearance quality.

[0027] According to this application, a spring is provided at the bottom of the elastic frame, one end of the spring is fixedly connected to the elastic frame, and the other end of the spring is fixedly connected to the inner side of the positioning ring.

[0028] According to this application, the blower includes a fan and a hot air box. An electric heating tube is provided inside the hot air box, and a temperature controller electrically connected to the electric heating tube is provided outside the hot air box. The fan and the hot air box are both fixedly connected to an eighth slider. The fan is connected to the hot air box, and the output end of the hot air box extends to the inside of the positioning ring.

[0029] According to this application, the spraying curing agent component includes a liquid supply pump, a nozzle, a ninth motor, a ninth lead screw, a ninth slider, a transverse telescopic frame, and a sleeve. The output end of the liquid supply pump is connected to the nozzle. There are two nozzles: one nozzle is located inside the positioning ring, and the other nozzle is fixedly connected inside the sleeve. The sleeve is fixedly connected to the telescopic end of the transverse telescopic frame. One side of the transverse telescopic frame is fixedly connected to the ninth slider. The ninth slider is slidably connected to the upper part of an eighth slider. The output end of the ninth motor is fixedly connected to one end of the ninth lead screw, and the ninth lead screw is threadedly connected to the ninth slider.

[0030] According to an embodiment of this application, a valve sealing performance testing device has the following advantages: In use, firstly, one side of the valve to be tested is connected to the rotating connecting pipe. Utilizing the rotatable function of the rotating connecting pipe, the connection between the valve's periphery and the pipeline is quickly tightened, significantly simplifying the valve installation and disassembly process. Subsequently, the rotating end of the rotating frame is used for adjustment. If in the test preparation stage, the rotating connecting pipe and the rotating water supply pipe need to be rotated to a horizontal position, or the rotating water supply pipe should be slightly higher than the rotating connecting pipe to form an inclined angle. At this time, the return box rotates synchronously above the rotating water supply pipe, and the water remaining in the box quickly flows back into the pipeline to complete the water replenishment. Then, the pressure piston is activated, and its pressure end pressurizes the rotating water supply pipe. Pressure is applied internally, and the water pressure data in the rotating connecting pipe is monitored in real time by a pressure sensor. At the same time, it is observed whether there is any leakage or seepage on the other side of the valve to complete the sealing test. After the test, the rotating end of the rotating frame moves again, so that the overall position of the rotating water supply pipe is lower than that of the rotating connecting pipe, forming a reverse tilt. The return box rotates synchronously with the rotating water supply pipe to its lower position. The water in the pipe flows back to the return box quickly under the action of gravity. At this time, the inside of the rotating connecting pipe near the valve is empty, and the valve can be directly disassembled. The entire operation process realizes the recycling and rapid replenishment of water, greatly shortens the time for water injection and drainage, and significantly improves the efficiency of valve sealing test. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a first-view structural schematic diagram of a valve sealing performance testing device provided in the embodiments of this application;

[0033] Figure 2 A partial structural schematic diagram of the test component provided in the embodiments of this application;

[0034] Figure 3 A partial structural schematic diagram of the rotating frame provided in the embodiments of this application;

[0035] Figure 4 A partial structural diagram showing the disassembled structure between the rotating connecting pipe and the rotating water supply pipe provided in the embodiments of this application;

[0036] Figure 5 A partial structural schematic diagram of the pressurizing piston provided in the embodiments of this application;

[0037] Figure 6 A partial structural schematic diagram of the drive unit and the lifting telescopic frame provided in the embodiments of this application;

[0038] Figure 7 A partial structural schematic diagram of the rotating threaded rod provided in the embodiments of this application;

[0039] Figure 8 A partial structural schematic diagram of the first linear slide rail provided for an embodiment of this application;

[0040] Figure 9 A partial structural schematic diagram of the adjustment frame provided in the embodiments of this application;

[0041] Figure 10 A partial structural schematic diagram of the loading and unloading assembly provided in the embodiments of this application;

[0042] Figure 11 A partial structural schematic diagram of the positioning ring provided in an embodiment of this application;

[0043] Figure 12 A partial structural schematic diagram of the blower provided in the embodiments of this application;

[0044] Figure 13 This is a partial structural schematic diagram of the sprayed curing agent component provided in the embodiments of this application.

[0045] In the diagram: 100 - Base frame; 200 - Test assembly; 210 - Rotating frame; 211 - First telescopic component; 212 - First frame body; 220 - Rotating connecting pipe; 221 - Bolt; 222 - Nut; 223 - First motor; 224 - First pipe body; 225 - First gear; 226 - First gear ring; 227 - Flange; 229 - Sealing connector; 230 - Rotating water supply pipe; 231 - Second motor; 232 - Second pipe body; 233 - Second gear; 234 - Second gear ring; 235 - First air inlet pipe; 236 - First solenoid valve; 237 - Connecting pipe ; 238-Second solenoid valve; 239-Connecting groove; 240-Return box; 241-Second air inlet pipe; 242-Third solenoid valve; 250-Pressure piston; 251-Second telescopic component; 252-Piston plate; 260-Pressure sensor; 300-Fixing assembly; 310-Drive component; 311-Impact gun; 312-Air pump; 313-Drive shaft; 320-Tightening sleeve; 330-Lifting telescopic frame; 331-Third motor; 332-First lead screw; 333-First slider; 334-Second frame; 335-Third frame; 336-Third telescopic component; 340 - Rotating threaded rod; 341 - Fourth motor; 350 - Limiting frame; 360 - First linear slide rail; 361 - Fifth motor; 362 - Second lead screw; 363 - Second slider; 370 - Double lifting frame; 371 - Fourth frame; 372 - Fifth frame; 373 - Fourth telescopic component; 374 - Sixth frame; 375 - Seventh frame; 376 - Fifth telescopic component; 377 - Eighth frame; 378 - Ninth frame; 379 - Sixth telescopic component; 380 - Adjusting frame; 381 - Sixth motor; 382 - Tenth frame; 383 - Seventh motor; 384 - Eleventh frame; 390-gripper; 400-loading and unloading assembly; 410-second linear guide rail; 411-eighth motor; 412-eighth lead screw; 413-eighth slider; 420-third linear guide rail; 430-positioning ring; 440-elastic frame; 441-spring; 450-micro switch; 460-blowing component; 461-fan; 462-hot air box; 470-spraying curing agent component; 471-liquid supply pump; 472-spray head; 473-ninth motor; 474-ninth lead screw; 475-ninth slider; 476-lateral telescopic frame; 477-sleeve. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] A valve sealing performance testing device according to an embodiment of this application is described below with reference to the accompanying drawings.

[0048] like Figures 1-13 As shown, a valve sealing performance testing device according to an embodiment of this application includes a base frame 100 and a testing component 200.

[0049] The test assembly 200 includes a rotating frame 210, a rotating connecting pipe 220, a rotating water supply pipe 230, a return box 240, a pressurizing piston 250, and a pressure sensor 260. One end of the rotating connecting pipe 220 is equipped with bolts 221 and nuts 222, with multiple bolts 221 and nuts 222. Bolts 221 are fixedly connected to the rotating connecting pipe 220, and nuts 222 are threadedly connected to bolts 221. The bottom of the rotating frame 210 is rotatably connected to the upper part of the base frame 100, the middle part of the rotating connecting pipe 220 is rotatably connected to the rotating end of the rotating frame 210, and one side of the rotating connecting pipe 220 is connected to one side of the rotating water supply pipe 230. The valve is fixedly installed on one side of the rotating connecting pipe 220 by bolts 221 and nuts 222. The middle part of the rotating water supply pipe 230 is rotatably connected to one side of the rotating end of the rotating frame 210. The return box 240 is fixedly connected to one side of the rotating water supply pipe 230 and communicates with one side of the rotating water supply pipe 230. One side of the pressure piston 250 is slidably connected to the other side of the rotating water supply pipe 230 and the other side of the pressure piston 250 is fixedly connected to the outside of the rotating water supply pipe 230. The pressure sensor 260 is fixedly connected to the rotating connecting pipe 220 and the detection end of the pressure sensor 260 is inserted inside the rotating connecting pipe 220.

[0050] The working process of a valve sealing performance testing device according to a specific embodiment of this application is described below with reference to the accompanying drawings;

[0051] First, valve installation and testing preparation: the first motor 223 drives the first gear 225 to mesh with the first gear ring 226, which drives the first pipe body 224 to rotate. Align one side of the valve to be tested with the flange 227, and fit the valve interface onto the outside of multiple bolts 221. The valve is fastened by the threaded connection of the bolts 221 and nuts 222. The first telescopic component 211 is activated to push the first frame 212 to rotate around the base frame 100. Adjust the rotating connecting pipe 220 and the rotating water supply pipe 230 to a horizontal state, or make the rotating water supply pipe 230 slightly higher than the rotating connecting pipe 220. Control the second solenoid valve 238 and the third solenoid valve 242 to open. The water remaining in the return box 240 flows back to the inside of the second pipe body 232 through the connecting pipe 237 to complete the water replenishment before testing. At the same time, close the relevant solenoid valves to keep the pipeline sealed.

[0052] Secondly, a pressure test for sealing is performed. The second telescopic component 251 is activated to push the piston plate 252 to slide inside the second pipe body 232, applying pressure to the pipe. The fit between the sealing connector 229 and the connecting groove 239 ensures a seal at the rotating connection. The pressure sensor 260 monitors the water pressure data inside the first pipe body 224 in real time and simultaneously observes whether there is leakage or seepage at the unconnected end of the valve. If auxiliary venting is required, the first solenoid valve 236 can be opened to discharge residual air in the pipe through the first air inlet pipe 235 to ensure the accuracy of the test. After pressurization, the pressure is kept stable to complete the sealing verification.

[0053] Then, after drainage reset and valve disassembly, and after the test is completed, the first telescopic component 211 is controlled to move in the opposite direction, so that the first frame 212 drives the rotating water supply pipe 230 to tilt downwards, and the return box 240 rotates synchronously with the rotating water supply pipe 230 to its lower position; the second solenoid valve 238 is opened, and the water accumulated in the pipe flows back quickly to the return box 240 for storage under the action of gravity through the connecting pipe 237. At this time, the side of the first pipe 224 near the valve is in an empty state. The nut 222 on the bolt 221 is removed, the tested valve is removed, and the water remaining in the return box 240 can be used for the next test water replenishment, realizing recycling and improving the test efficiency.

[0054] As a result, the entire operation process realizes the recycling and rapid replenishment of water, greatly shortens the time spent on water injection and drainage, and significantly improves the efficiency of valve sealing test.

[0055] In addition, a valve sealing performance testing device according to an embodiment of this application also has the following additional technical features:

[0056] According to this application, such as Figure 3 As shown, the rotating frame 210 includes a first telescopic member 211 and a first frame 212. The end of the first telescopic member 211 is rotatably connected to the base frame 100, the output end of the first telescopic member 211 is rotatably connected to one side of the first frame 212, and the bottom of the first frame 212 is rotatably connected to the base frame 100.

[0057] According to this application, such as Figure 4 As shown, the rotating connecting pipe 220 includes a first motor 223 and a first pipe body 224. The first motor 223 is fixedly connected to the first frame 212, the middle part of the first pipe body 224 is rotatably connected to the first frame 212, and the output end of the first motor 223 is drivenly connected to the first pipe body 224.

[0058] According to this application, such as Figure 4 As shown, the first motor 223 is provided with a first gear 225 at its output end, and the first tube 224 is provided with a first gear ring 226. The first gear 225 and the first gear ring 226 are meshed and connected.

[0059] According to this application, such as Figure 4As shown, a flange 227 is provided on one side of the first pipe body 224, and bolts 221 penetrate the inside of the flange 227. Reinforcing ribs are provided on the outside of the first pipe body 224.

[0060] According to this application, such as Figure 4 As shown, the rotating water supply pipe 230 includes a second motor 231 and a second pipe body 232. The second motor 231 is fixedly connected to the first frame 212. The output end of the second motor 231 is connected to the second pipe body 232 in a transmission connection. The middle part of the second pipe body 232 is rotatably connected to the first frame 212. One side of the first pipe body 224 is rotatably connected to one side of the second pipe body 232 in a sealed manner.

[0061] According to this application, such as Figure 4 As shown, the output end of the second motor 231 is provided with a second gear 233, and the second tube 232 is provided with a second gear ring 234. The second gear 233 and the second gear ring 234 are meshed and connected.

[0062] According to this application, such as Figure 4 As shown, a first air inlet pipe 235 is provided on one side of the second pipe body 232, and a first solenoid valve 236 is provided outside the first air inlet pipe 235. A connecting pipe 237 is provided on the other side of the second pipe body 232, and a second solenoid valve 238 is provided outside the connecting pipe 237. The other end of the connecting pipe 237 is connected to one side of the return box 240. A second air inlet pipe 241 is provided on the other side of the return box 240, and a third solenoid valve 242 is provided outside the second air inlet pipe 241.

[0063] According to this application, such as Figure 4 As shown, a sealing connector 229 is provided on one side of the first tube 224, and a connecting groove 239 is provided on one side of the second tube 232. The sealing connector 229 is located inside the connecting groove 239 and is rotatably connected.

[0064] According to this application, such as Figure 5 As shown, the pressurizing piston 250 includes a second telescopic member 251 and a piston plate 252. A limit rod is provided on one side of the piston plate 252. The end of the second telescopic member 251 is fixedly connected to the outside of one side of the second tube 232. The output end of the second telescopic member 251 is fixedly connected to one side of the piston plate 252. The piston plate 252 is slidably connected to the inside of the second tube 232.

[0065] In valve sealing testing, the alignment and tightening of bolts 221 during valve installation have a low degree of mechanization, resulting in high labor intensity and low operating efficiency, which in turn reduces the overall testing efficiency.

[0066] According to this application, such as Figures 6-9As shown, it also includes a fixing component 300, which includes a drive component 310, a turning sleeve 320, a lifting telescopic frame 330, a rotating threaded rod 340, a limit frame 350, a first linear slide rail 360, a double lifting frame 370, an adjusting frame 380, and a gripper 390. One side of the drive component 310 is fixedly connected to the telescopic end of the lifting telescopic frame 330, and the rotating end of the drive component 310 is connected to the turning sleeve 320. A magnetic block is provided inside the turning sleeve 320, and the nut 222 is made of magnetic metal. The turning sleeve 320 is rotatably connected to the telescopic end of the lifting telescopic frame 330, and the turning sleeve 320 is connected to the nut 222. 222 is matched and set, the rotating threaded rod 340 is rotatably connected to one side of the limiting frame 350, the thread end of the rotating threaded rod 340 is matched and set with the nut 222, the nut 222 is slidably attached to the limiting frame 350, the lifting end of the lifting telescopic frame 330 is slidably connected to one side of the rotating end of the rotating frame 210, the first linear slide rail 360 is slidably connected to the base frame 100, the sliding end of the first linear slide rail 360 is fixedly connected to one side of the bottom of the double lifting frame 370, the other side of the double lifting frame 370 is rotatably connected to one side of the rotating end of the adjusting frame 380, and two grippers 390 are provided, the grippers 390 are fixedly connected to the adjusting end of the adjusting frame 380;

[0067] The fifth motor 361 drives the second lead screw 362 to move the second slider 363 horizontally. The linked double lifting frame 370 adjusts its height and horizontal position via the fourth telescopic component 373, the fifth telescopic component 376, and the sixth telescopic component 379. The sixth motor 381 and the seventh motor 383 of the adjusting frame 380 drive the tenth frame 382 and the eleventh frame 384 to rotate, respectively, allowing the gripper 390 to precisely grasp the valve and complete lifting, horizontal movement, and rotation. The valve interface is then fitted onto the bolt 221 of the rotating connecting pipe 220. Subsequently, the third motor 331 drives the first lead screw 332 to move the first slider 333, and the third telescopic component 336 pushes the second frame 334 to extend and retract, causing the screw to tighten. The sleeve 320 is fitted onto the nut 222 on the rotating threaded rod 340. The fourth motor 341 drives the rotating threaded rod 340 to rotate. Under the limiting action of the limit frame 350, the nut 222 is disassembled and attracted to the magnetic block inside the screwing sleeve 320 to cooperate with the magnetic nut 222. Then, the position is adjusted by the lifting telescopic frame 330. The air pump 312 drives the blower 311 to drive the screwing sleeve 320 to rotate via the transmission shaft 313, which tightens the nut 222 onto the bolt 221. After the inspection is completed, the drive component 310 reverses its action to disassemble the nut 222 and transfer it to the rotating threaded rod 340 for storage. The entire process of valve grabbing, alignment and nut 222 disassembly and assembly is completed by mechanization, improving the efficiency of inspection automation.

[0068] According to this application, such as Figure 6As shown, the driving component 310 includes a blower 311, an air pump 312, and a drive shaft 313. The air pump 312 is fixedly connected to the upper part of the rotating frame 210. The blower 311 is fixedly connected to the telescopic end of the lifting telescopic frame 330. The drive shaft 313 and the screwing sleeve 320 are both rotatably connected to the telescopic end of the lifting telescopic frame 330. The output end of the air pump 312 is connected to the blower 311. The output end of the blower 311 is connected to the drive shaft 313. The drive shaft 313 is connected to the screwing sleeve 320.

[0069] According to this application, such as Figure 6 As shown, the lifting telescopic frame 330 includes a third motor 331, a first lead screw 332, a first slider 333, a second frame 334, a third frame 335, and a third telescopic component 336. The third motor 331 is fixedly connected to the rotating frame 210. The output end of the third motor 331 is fixedly connected to one end of the first lead screw 332. The first lead screw 332 is rotatably connected to the rotating frame 210. The first slider 333 is slidably connected to the rotating frame 210. The first lead screw 332 is threadedly connected to the first slider 333. One end of the third frame 335 and the third telescopic component 336 are both fixedly connected to one side of the first slider 333. The second frame 334 is slidably connected to the third frame 335. The output end of the third telescopic component 336 is fixedly connected to the second frame 334. A fourth motor 341 is provided on one side of the rotating threaded rod 340. The fourth motor 341 is fixedly connected to the rotating frame 210. The output end of the fourth motor 341 is fixedly connected to one end of the rotating threaded rod 340.

[0070] According to this application, such as Figure 8 As shown, the first linear slide rail 360 includes a fifth motor 361, a second lead screw 362, and a second slider 363. The fifth motor 361 is fixedly connected to the base frame 100. The output end of the fifth motor 361 is fixedly connected to one end of the second lead screw 362. The second lead screw 362 is rotatably connected to the base frame 100. The second slider 363 is slidably connected to the base frame 100. The second lead screw 362 and the second slider 363 are threadedly connected.

[0071] According to this application, such as Figure 8As shown, the dual lifting frame 370 includes a fourth frame 371, a fifth frame 372, a fourth telescopic member 373, a sixth frame 374, a seventh frame 375, a fifth telescopic member 376, an eighth frame 377, a ninth frame 378, and a sixth telescopic member 379. The bottoms of the fifth frame 372 and the fourth telescopic member 373 are fixedly connected to the upper part of the second slider 363. The fourth frame 371 is slidably connected to the interior of the fifth frame 372. The output end of the fourth telescopic member 373 and the upper part of the fourth frame 371 are fixedly connected to the seventh frame 375. The sixth frame 374 is slidably connected to the seventh frame 375. The output end of the fifth telescopic member 376 and one side of the sixth frame 374 are fixedly connected to the ninth frame 378. The eighth frame 377 is slidably connected to the ninth frame 378. The output end of the sixth telescopic member 379 is fixedly connected to the eighth frame 377.

[0072] According to this application, such as Figure 9 As shown, the adjustment frame 380 includes a sixth motor 381, a tenth frame 382, ​​a seventh motor 383, and an eleventh frame 384. The gripper 390 has a gripping sleeve at its gripping end. The sixth motor 381 is fixedly connected to the eighth frame 377. The output end of the sixth motor 381 is drivenly connected to the tenth frame 382. The tenth frame 382 is rotatably connected to the eighth frame 377. The seventh motor 383 is fixedly connected to the eleventh frame 384. The eleventh frame 384 is rotatably connected to the tenth frame 382. The output end of the seventh motor 383 is fixedly connected to the tenth frame 382. The gripper 390 is fixedly connected to the eleventh frame 384.

[0073] After the sealing test of liquid medium valves, liquid is easily left inside the valve. If the valve is directly packaged, stored and transported, the residual liquid will not only cause rust inside the valve, but also easily attract dust and form dirt, affecting the subsequent performance and appearance quality of the valve. The existing testing process lacks a targeted solution for handling residual liquid, and there is a clear need for improvement.

[0074] According to this application, such as Figures 10-13As shown, it also includes a loading / unloading assembly 400, which includes a second linear slide rail 410, a third linear slide rail 420, a positioning ring 430, an elastic frame 440, a micro switch 450, a blower component 460, and a spray curing agent component 470. The second linear slide rail 410 and the third linear slide rail 420 are both slidably connected to the base frame 100. The positioning ring 430 is fixedly connected to the sliding end of the third linear slide rail 420. The elastic end of the elastic frame 440 is slidably connected to the base frame 100. Inside the positioning ring 430, the micro switch 450 is fixedly connected inside the positioning ring 430. The bottom of one side of the elastic bracket 440 is located above the micro switch 450 and can touch the upper part of the micro switch 450. The output end of the blower 460 is located inside the positioning ring 430. The spray curing agent component 470 has two output ends, one of which is located inside the positioning ring 430, and the other is located above the positioning ring 430.

[0075] After the valve and rotating connecting pipe 220 are disassembled, the loading and unloading assembly 400 starts working. First, the second linear slide rail 410 and the third linear slide rail 420 drive the eighth lead screw 412 to rotate through their respective eighth motors 411, which drives the eighth slider 413 to slide along the base frame 100, realizing the position adjustment of the positioning ring 430 and related components. When the external structure grabs the valve and flips it so that the liquid inlet side is facing down, the valve is embedded inside the positioning ring 430. Under the action of gravity, the elastic end of the elastic frame 440 is pressed down. The bottom of the elastic frame 440 is elastically connected to the inside of the positioning ring 430 through the spring 441. One bottom side of the elastic frame 440 touches and triggers the micro switch 450 inside the positioning ring 430. After the micro switch 450 is activated, it causes the blower 460 to run. The blower 461 sends air into the hot air box 462 with built-in electric heating tube. After the temperature is regulated by the thermostat, the hot air is delivered from the output end of the hot air box 462 to the inside of the positioning ring 430 to quickly dry the inside of the valve. On the other hand, the spray curing agent component 470 is started, and the liquid supply pump 471 delivers the curing agent to two nozzles 472. One nozzle 472 sprays directly into the valve inside the positioning ring 430. At the same time, the ninth motor 473 drives the ninth lead screw 474 to move the ninth slider 475. With the help of the transverse telescopic frame 476, the insert 477 and the other nozzle 472 inside are pushed into the top of the valve. This not only supports and positions the valve, but also sprays the curing agent onto the upper inside of the valve. Finally, the drying and curing treatment is completed in the valve unloading process.

[0076] According to this application, such as Figure 11 As shown, a spring 441 is provided at the bottom of the elastic frame 440. One end of the spring 441 is fixedly connected to the elastic frame 440, and the other end of the spring 441 is fixedly connected to the inner side of the positioning ring 430.

[0077] According to this application, such as Figure 12As shown, the blower 460 includes a fan 461 and a hot air box 462. An electric heating tube is installed inside the hot air box 462, and a thermostat electrically connected to the electric heating tube is installed outside the hot air box 462. Both the fan 461 and the hot air box 462 are fixedly connected to an eighth slider 413. The fan 461 is connected to the hot air box 462, and the output end of the hot air box 462 extends to the inside of the positioning ring 430.

[0078] According to this application, such as Figure 13 As shown, the spraying curing agent component 470 includes a liquid supply pump 471, a nozzle 472, a ninth motor 473, a ninth lead screw 474, a ninth slider 475, a transverse telescopic frame 476, and a sleeve 477. The output end of the liquid supply pump 471 is connected to the nozzle 472. There are two nozzles 472. One nozzle 472 is located inside the positioning ring 430, and the other nozzle 472 is fixedly connected inside the sleeve 477. The sleeve 477 is fixedly connected to the telescopic end of the transverse telescopic frame 476. One side of the transverse telescopic frame 476 is fixedly connected to the ninth slider 475. The ninth slider 475 is slidably connected to the upper part of an eighth slider 413. The output end of the ninth motor 473 is fixedly connected to one end of the ninth lead screw 474. The ninth lead screw 474 is threadedly connected to the ninth slider 475.

[0079] It should be noted that the first telescopic component 211, the second telescopic component 251, the third telescopic component 336, the fourth telescopic component 373, the fifth telescopic component 376, and the sixth telescopic component 379 are all any one of electric push rods, electric cylinders, hydraulic cylinders, and pneumatic cylinders.

[0080] Other components and operations of a valve sealing performance testing device according to embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative.

[0082] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A valve sealing performance testing device, characterized in that, include: Base frame (100); The test assembly (200) includes a rotating frame (210), a rotating connecting pipe (220), a rotating water supply pipe (230), a return box (240), a pressurizing piston (250), and a pressure sensor (260). One end of the rotating connecting pipe (220) is provided with a bolt (221) and a nut (222). Multiple bolts (221) and nuts (222) are provided. The bolt (221) is fixedly connected to the rotating connecting pipe (220), and the nut (222) is threadedly connected to the bolt (221). The bottom of the rotating frame (210) is rotatably connected to the upper part of the base frame (100). The middle part of the rotating connecting pipe (220) is rotatably connected to the rotating end of the rotating frame (210). One side of the rotating connecting pipe (220) is connected to the rotating water supply pipe (230). 0) One side is rotated and connected, and one side of the valve is fixedly installed on the other side of the rotating connecting pipe (220) by the bolt (221) and the nut (222). The middle part of the rotating water supply pipe (230) is rotatably connected to one side of the rotating end of the rotating frame (210). The return box (240) is fixedly connected to one side of the rotating water supply pipe (230). The return box (240) is connected to one side of the rotating water supply pipe (230). One side of the pressure piston (250) is slidably connected to the other side of the rotating water supply pipe (230). The other side of the pressure piston (250) is fixedly connected to the outside of the rotating water supply pipe (230). The pressure sensor (260) is fixedly connected to the rotating connecting pipe (220). The detection end of the pressure sensor (260) is inserted inside the rotating connecting pipe (220). The rotating frame (210) includes a first telescopic member (211) and a first frame (212). The end of the first telescopic member (211) is rotatably connected to the base frame (100). The output end of the first telescopic member (211) is rotatably connected to one side of the first frame (212). The bottom of the first frame (212) is rotatably connected to the base frame (100).

2. The valve sealing performance testing device according to claim 1, characterized in that, The rotating connecting pipe (220) includes a first motor (223) and a first pipe body (224). The first motor (223) is fixedly connected to the first frame (212), the middle part of the first pipe body (224) is rotatably connected to the first frame (212), and the output end of the first motor (223) is drivenly connected to the first pipe body (224).

3. The valve sealing performance testing device according to claim 2, characterized in that, The first motor (223) is provided with a first gear (225) at its output end, and the first tube (224) is provided with a first gear ring (226). The first gear (225) and the first gear ring (226) are meshed and connected.

4. The valve sealing performance testing device according to claim 2, characterized in that, A flange (227) is provided on one side of the first pipe body (224), and the bolt (221) passes through the inside of the flange (227). A reinforcing rib is provided on the outside of the first pipe body (224).

5. A valve sealing performance testing device according to claim 2, characterized in that, The rotating water supply pipe (230) includes a second motor (231) and a second pipe body (232). The second motor (231) is fixedly connected to the first frame (212). The output end of the second motor (231) is connected to the second pipe body (232) in a transmission connection. The middle part of the second pipe body (232) is rotatably connected to the first frame (212). One side of the first pipe body (224) is rotatably connected to one side of the second pipe body (232).

6. The valve sealing performance testing device according to claim 5, characterized in that, The output end of the second motor (231) is provided with a second gear (233), and the second tube (232) is provided with a second gear ring (234). The second gear (233) and the second gear ring (234) are meshed and connected.

7. The valve sealing performance testing device according to claim 5, characterized in that, A first air inlet pipe (235) is provided on one side of the second pipe body (232), and a first solenoid valve (236) is provided outside the first air inlet pipe (235). A connecting pipe (237) is provided on the other side of the second pipe body (232), and a second solenoid valve (238) is provided outside the connecting pipe (237). The other end of the connecting pipe (237) is connected to one side of the return box (240). A second air inlet pipe (241) is provided on the other side of the return box (240), and a third solenoid valve (242) is provided outside the second air inlet pipe (241).

8. The valve sealing performance testing device according to claim 5, characterized in that, A sealing connector (229) is provided on one side of the first tube body (224), and a connecting groove (239) is provided on one side of the second tube body (232). The sealing connector (229) is located inside the connecting groove (239) and rotates.

9. A valve sealing performance testing device according to claim 5, characterized in that, The pressurizing piston (250) includes a second telescopic member (251) and a piston plate (252). A limit rod is provided on one side of the piston plate (252). The end of the second telescopic member (251) is fixedly connected to the outside of one side of the second tube body (232). The output end of the second telescopic member (251) is fixedly connected to one side of the piston plate (252). The piston plate (252) is slidably connected to the inside of the second tube body (232).

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