Valve detection device for pipeline valve processing

Abstract

The utility model relates to the technical field of valve detection, and discloses a valve detection device for pipeline valve processing, which comprises a detection box, a cylinder fixedly connected to the middle of the bottom of the inner side of the detection box, a hydraulic cylinder fixedly connected to the bottom of the inner side of the cylinder, and a driving mechanism arranged at the top of the hydraulic cylinder. The driving mechanism comprises a lifting plate fixedly connected to the top of the hydraulic cylinder, a rectangular hole is formed in one end of the lifting plate, a rectangular frame is fixedly connected to the position, located at the rectangular hole, of the bottom of the lifting plate, two sliding rods are fixedly connected between the two ends of the inner side of the rectangular frame, and the circumferential surfaces of the two sliding rods are slidably sleeved with the same sliding block. Round holes matched with the sliding rods are formed in the two sides of the sliding block correspondingly, and first extrusion discs are fixedly connected to the tops of the sliding rods. According to the utility model, the technical effects that the driving mechanism and the hydraulic cylinder are utilized to automatically complete the clamping and sealing operation of the valve, the detection preparation time is greatly shortened, and the overall detection efficiency is improved are realized.

Description

Technical Field

[0001] This utility model relates to the field of valve testing technology, and in particular to a valve testing device for pipeline valve processing. Background Technology

[0002] In modern industrial production, pipeline valves, as key components for controlling the flow of fluid media, are widely used in many fields such as petroleum, chemical, power, metallurgy, and water supply and drainage. Its performance directly affects the safe and stable operation, production efficiency, and energy consumption of the entire pipeline system. A search revealed a Chinese patent with authorization number CN222087258U, which discloses a valve testing device for pipeline valve processing, relating to the field of valve testing. This device solves the problem of inaccurate test results when using water as the testing fluid in existing devices. The solution includes a testing box filled with clean water on its inner side. An air pump and a pressure monitor are respectively mounted on both sides of the testing box. Connecting pipes are fixedly connected to the ends of the air pump and the pressure monitor, and the valve body to be tested is screwed between the two sets of connecting pipes. This valve testing device for pipeline valve processing, through the arrangement of the components on the testing box, can perform airtightness testing on a valve platform placed in clean water. The testing method involves filling the box with gas, allowing for accurate airtightness testing by observing whether bubbles emerge. Furthermore, the air pump and pressure monitor allow for airtightness testing of the valve body under varying internal pressures through continuous pressurization.

[0003] The valve testing device for pipeline valve processing in the aforementioned patent has the following shortcomings: When performing testing, the device requires manual connection to the valve to be tested via flanges and sealing discs before valve quality testing can be carried out. This requires disassembly after each test, which greatly reduces testing efficiency. Therefore, a valve testing device for pipeline valve processing has been designed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a valve testing device for pipeline valve processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A valve testing device for pipeline valve processing includes a testing box. A cylinder is fixedly connected to the middle of the bottom of the testing box. A hydraulic cylinder is fixedly connected to the bottom of the cylinder. A driving mechanism is provided on the top of the hydraulic cylinder. The driving mechanism includes a lifting plate fixedly connected to the top of the hydraulic cylinder. A rectangular hole is opened at one end of the lifting plate. A rectangular frame is fixedly connected to the bottom of the lifting plate at the rectangular hole. Two sliding rods are fixedly connected between the two ends of the inner side of the rectangular frame. The same sliding block is slidably fitted on the circumferential surface of the two sliding rods. Circular holes adapted to the sliding rods are opened on both sides of the sliding block. A first extrusion plate is fixedly connected to the top of the sliding rod. An L-shaped upper tube is fixedly connected to the side of the first extrusion plate away from the center of the lifting plate and is connected to the first extrusion plate. A pressure gauge is fixedly connected to one side of the circumferential surface of the L-shaped upper tube. An annular rubber pad is fixedly connected to the side of the first extrusion plate near the center of the lifting plate. Crossbars are fixedly connected to both ends of the side of the first extrusion plate away from the center of the lifting plate. Protrusions are fixedly connected to the other ends of the two crossbars that are far apart from each other.

[0007] Preferably, the driving mechanism further includes a second extrusion plate fixedly connected to the top of the lifting plate at the end away from the first extrusion plate, and an L-shaped lower tube fixedly connected to the side of the second extrusion plate away from the first extrusion plate, and the L-shaped lower tube is connected to the second extrusion plate. An annular rubber pad is fixedly connected to the side of the second extrusion plate close to the first extrusion plate. Arc-shaped brackets are fixedly connected to both sides of the top of the lifting plate near the middle. With the setting of the driving mechanism, the user only needs to place the valve on the two arc-shaped brackets on the top of the lifting plate to perform valve testing without any other excessive operations.

[0008] Preferably, the testing box is provided with an adjustment mechanism on the side near the crossbar. The adjustment mechanism includes two sleeve rods that are slidably sleeved on one side of the testing box. The testing box has two round holes that are adapted to the sleeve rods. The two sleeve rods are fixedly connected to the same U-shaped plate at one end inside the testing box, and irregular holes are provided on both sides of the U-shaped plate.

[0009] Preferably, the adjustment mechanism further includes a screw plate fixedly connected to the other end of the two sleeve rods, and a lead screw is screwed into the middle of the screw plate, and a lead screw nut adapted to the lead screw is fixedly sleeved in the middle of the screw plate. The end of the lead screw near the detection box is rotatably connected to the outside of the detection box, and a handwheel is fixedly connected to the other end of the lead screw. By setting the adjustment mechanism, effective detection can be performed when detecting valves of different lengths.

[0010] Preferably, each of the protrusions is slidably connected in adjacent irregular holes.

[0011] Preferably, the irregular hole includes an oblique hole and a vertical hole, and the bottom of the oblique hole is connected to the vertical hole.

[0012] Preferably, the top of the L-shaped upper tube is connected to the air pump via a pipe.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By employing a drive mechanism and hydraulic cylinder technology, during testing, the valve to be tested is placed on top of two arc-shaped supports. As the lifting plate descends, the first and second extrusion plates automatically clamp the valve. Combined with the rubber sealing ring, this seals both sides of the valve. Then, air is injected, and the valve's passability is determined by whether air bubbles are generated at the bottom of the L-shaped lower pipe. This effectively solves the problem of cumbersome testing processes mentioned in the background technology, and realizes the automatic clamping and sealing operation of the valve using a drive mechanism and hydraulic cylinder. This greatly shortens the test preparation time and improves the overall testing efficiency.

[0015] 2. By adjusting the mechanism, the initial positions of the U-shaped plate and the first extrusion plate can be adjusted by rotating the handwheel, thereby ensuring that valves of different lengths can be sealed and fixed, facilitating inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a valve testing device for pipeline valve processing proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the drive mechanism of a valve testing device for pipeline valve processing proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the drive mechanism of a valve testing device for pipeline valve processing proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment mechanism of a valve testing device for pipeline valve processing proposed in this utility model.

[0020] In the diagram: 1. Detection box; 2. Cylinder; 201. Hydraulic cylinder; 3. Drive mechanism; 301. Lifting plate; 302. Arc-shaped bracket; 303. L-shaped lower tube; 304. Rectangular frame; 305. Sliding block; 306. Sliding rod; 307. First extrusion plate; 308. L-shaped upper tube; 309. Pressure gauge; 310. Crossbar; 311. Protrusion; 312. Second extrusion plate; 4. Adjustment mechanism; 401. Sleeve rod; 402. Threaded plate; 403. U-shaped plate; 404. Irregular hole; 405. Lead screw; 406. Handwheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A valve testing device for pipeline valve processing includes a testing box 1. A cylinder 2 is fixedly connected to the middle of the bottom of the inner side of the testing box 1. A hydraulic cylinder 201 is fixedly connected to the bottom of the inner side of the cylinder 2. A driving mechanism 3 is provided on the top of the hydraulic cylinder 201. The driving mechanism 3 includes a lifting plate 301 fixedly connected to the top of the hydraulic cylinder 201. A rectangular hole is opened at one end of the lifting plate 301. A rectangular frame 304 is fixedly connected to the bottom of the lifting plate 301 at the rectangular hole. Two sliding rods 306 are fixedly connected between the two ends of the inner side of the rectangular frame 304. The same sliding block 305 is slidably sleeved on the circumferential surface of the two sliding rods 306. Both sides of the sliding block 305 are open. A circular hole adapted to the slide rod 306 is provided. A first extrusion plate 307 is fixedly connected to the top of the slide rod 306. An L-shaped upper tube 308 is fixedly connected to the side of the first extrusion plate 307 away from the center of the lifting plate 301. The L-shaped upper tube 308 is connected to the first extrusion plate 307. A pressure gauge 309 is fixedly connected to one side of the circumferential surface of the L-shaped upper tube 308. An annular rubber pad is fixedly connected to the side of the first extrusion plate 307 close to the center of the lifting plate 301. Crossbars 310 are fixedly connected to both ends of the side of the first extrusion plate 307 away from the center of the lifting plate 301. Protrusions 311 are fixedly connected to the other ends of the two crossbars 310 that are far apart from each other.

[0023] In this utility model, the drive mechanism 3 also includes a second extrusion plate 312 fixedly connected to the top of the lifting plate 301 at the end away from the first extrusion plate 307. An L-shaped lower tube 303 is fixedly connected to the side of the second extrusion plate 312 away from the first extrusion plate 307, and the L-shaped lower tube 303 is connected to the second extrusion plate 312. An annular rubber pad is fixedly connected to the side of the second extrusion plate 312 close to the first extrusion plate 307. Arc-shaped brackets 302 are fixedly connected to both sides of the top of the lifting plate 301 near the middle. The arc-shaped brackets 302 facilitate the placement of the valve.

[0024] In this utility model, an adjustment mechanism 4 is provided on the side of the test box 1 near the crossbar 310. The adjustment mechanism 4 includes two sleeve rods 401 that are slidably sleeved on one side of the test box 1. Two round holes adapted to the sleeve rods 401 are opened on the test box 1. The two sleeve rods 401 are fixedly connected to the same U-shaped plate 403 at one end inside the test box 1, and irregular holes 404 are opened on both sides of the U-shaped plate 403.

[0025] In this utility model, the adjusting mechanism 4 also includes a screw plate 402 fixedly connected to the other end of the two sleeve rods 401, and a lead screw 405 is screwed into the middle of the screw plate 402. A lead screw nut adapted to the lead screw 405 is fixedly sleeved in the middle of the screw plate 402. One end of the lead screw 405 near the detection box 1 is rotatably connected to the outside of the detection box 1, and the other end of the lead screw 405 is fixedly connected to a handwheel 406. By rotating the handwheel 406, the initial position of the U-shaped plate 403 and the irregular hole 404 is adjusted, so that when detecting valves of different lengths, the annular rubber gasket can seal both sides of the valve.

[0026] In this invention, each protrusion 311 is slidably connected in adjacent irregular holes 404.

[0027] In this utility model, the irregular hole 404 includes an oblique hole and a vertical hole, and the bottom of the oblique hole is connected to the vertical hole. The irregular hole 404 is designed so that when the lifting plate 301 descends, the first extrusion plate 307 will first approach the valve to extrude and then continue to descend. The top of the L-shaped upper pipe 308 is connected to the air pump through a pipe.

[0028] Working Principle: In use, first add an appropriate amount of water to the testing box 1, ensuring the water level does not exceed the top of the cylinder 2. Place the valve to be tested horizontally on top of the two lifting plates 301, ensuring the valve is closed, with one end of the valve close to the annular rubber pad of the second extrusion plate 312. Activate the hydraulic cylinder 201 to retract, causing the lifting plate 301 to descend with the valve. During descent, the protrusion 311 slides in the oblique hole of the irregular hole 404, causing the first extrusion plate 307, carrying the annular rubber pad, to move towards one side of the valve, thus extruding both ends of the valve. The deformation of the annular rubber pads on both sides ensures that both ends of the valve are connected to the L-shaped upper pipe 308 and the L-shaped lower pipe 303, preventing air leakage in the middle. As the lifting plate 301 descends, the L-shaped lower pipe 303 is submerged in water. At this time, the air pump is started, and air is injected into one side of the valve through the L-shaped upper pipe 308. The pressure gauge 309 is used to determine whether the pressure meets the standard. At this time, observe whether there are bubbles emerging from the bottom of the L-shaped lower pipe 303. If there are bubbles, it means that the valve is unqualified. When testing different valves, if the valves are of different lengths, the handwheel 406 of the adjusting mechanism 4 is turned to adjust the initial distance between the U-shaped plate 403 and the irregular hole 404. This adjusts the initial position of the first extrusion plate 307, ensuring that when the lifting plate 301 descends with the valve, the annular rubber pads on both sides seal the valve, thus enabling the testing of valves of different lengths.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve testing device for pipeline valve processing, comprising a testing box (1), characterized in that, A cylinder (2) is fixedly connected to the middle of the bottom inner side of the detection box (1). A hydraulic cylinder (201) is fixedly connected to the bottom inner side of the cylinder (2). A driving mechanism (3) is provided on the top of the hydraulic cylinder (201). The driving mechanism (3) includes a lifting plate (301) fixedly connected to the top of the hydraulic cylinder (201). A rectangular hole is opened at one end of the lifting plate (301). A rectangular frame (304) is fixedly connected to the bottom of the lifting plate (301) at the rectangular hole. Two sliding rods (306) are fixedly connected between the two ends of the inner side of the rectangular frame (304). The same sliding block (305) is slidably fitted on the circumferential surface of the two sliding rods (306). Both sides of the sliding block (305) are provided with openings that connect with the sliding rods (306). 6) A matching circular hole, the top of the slide rod (306) is fixedly connected to a first extrusion plate (307), and the side of the first extrusion plate (307) away from the center of the lifting plate (301) is fixedly connected to an L-shaped upper tube (308), and the L-shaped upper tube (308) is connected to the first extrusion plate (307). A pressure gauge (309) is fixedly connected to one side of the circumferential surface of the L-shaped upper tube (308). An annular rubber pad is fixedly connected to the side of the first extrusion plate (307) close to the center of the lifting plate (301). A crossbar (310) is fixedly connected to both ends of the side of the first extrusion plate (307) away from the center of the lifting plate (301). A protrusion (311) is fixedly connected to the other end of the two crossbars (310) on the side away from each other.

2. The valve testing device for pipeline valve processing according to claim 1, characterized in that, The driving mechanism (3) further includes a second extrusion plate (312) fixedly connected to the top of the lifting plate (301) away from the first extrusion plate (307), and an L-shaped lower tube (303) fixedly connected to the side of the second extrusion plate (312) away from the first extrusion plate (307), and the L-shaped lower tube (303) is connected to the second extrusion plate (312). An annular rubber pad is fixedly connected to the side of the second extrusion plate (312) close to the first extrusion plate (307). Arc-shaped brackets (302) are fixedly connected to both sides of the top of the lifting plate (301) near the middle.

3. The valve testing device for pipeline valve processing according to claim 1, characterized in that, An adjustment mechanism (4) is provided on the side of the test box (1) near the crossbar (310). The adjustment mechanism (4) includes two sleeve rods (401) that are slidably sleeved on one side of the test box (1). Two round holes adapted to the sleeve rods (401) are opened on the test box (1). The two sleeve rods (401) are fixedly connected to the same U-shaped plate (403) at one end inside the test box (1), and irregular holes (404) are opened on both sides of the U-shaped plate (403).

4. The valve testing device for pipeline valve processing according to claim 3, characterized in that, The adjustment mechanism (4) also includes a screw plate (402) fixedly connected to the other end of the two sleeve rods (401), and a lead screw (405) is screwed into the middle of the screw plate (402), and a lead screw nut adapted to the lead screw (405) is fixedly sleeved in the middle of the screw plate (402). The end of the lead screw (405) near the detection box (1) is rotatably connected to the outside of the detection box (1), and a handwheel (406) is fixedly connected to the other end of the lead screw (405).

5. The valve testing device for pipeline valve processing according to claim 1, characterized in that, Each of the bumps (311) is slidably connected in adjacent irregular holes (404).

6. The valve testing device for pipeline valve processing according to claim 3, characterized in that, The irregular hole (404) includes an oblique hole and a vertical hole, and the bottom of the oblique hole is connected to the vertical hole.

7. The valve testing device for pipeline valve processing according to claim 1, characterized in that, The top of the L-shaped upper pipe (308) is connected to the air pump via a pipe.

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