Ball valve sealing detection device

Abstract

The utility model relates to the technical field of detection devices, and provides a ball valve sealing detection device in order to solve the defect that whether inner leakage exists or not cannot be detected in the prior art, the ball valve sealing detection device comprises a base, a supporting plate is fixedly installed on one side of the top of the base, and a water tank is rotatably installed on one side of the supporting plate. A clamping mechanism used for fixing the ball valve is arranged on one side of the water tank, sealing joints are embedded in the two opposite sides of the clamping mechanism, the two sealing joints are communicated with the two ends of the ball valve respectively, and a metering cylinder is fixedly installed on the side, away from the ball valve, of each sealing joint. The two connecting ends of the ball valve are arranged up and down, the two sealing joints and the two metering cylinders are arranged, if leakage occurs in the ball valve, detection liquid can flow to an outlet in the bottom of the ball valve and then flow into the metering cylinders located at the bottom end of the ball valve, the inner leakage condition of the ball valve is judged according to the leakage amount, the problem that inner leakage cannot be detected is effectively solved, and practicability is better achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a ball valve airtightness detection device. Background Art

[0002] As a type of valve, ball valves have been widely used to connect or cut off pipelines to transport media. Since the media transported in pipelines are usually gas or liquid, the sealing performance of the ball valve is required to be high, especially that the ball valve must have no external leakage or internal leakage during use.

[0003] In the prior art, the ball valve tightness test equipment (publication number: CN219890657U) can fit the flanges on both sides of the ball valve by setting the positioning columns on the inner side of the clamping box. When testing the ball valve, there is no need to use a large number of bolts for fixing. The ball valve can be installed and disassembled quickly, which improves the test efficiency. However, when the ball valve is in a closed state, the equipment cannot detect whether there is an internal leakage problem. Therefore, it is urgent to design a ball valve tightness detection device that can detect internal leakage. Utility Model Content

[0004] The utility model aims to solve the defect that the existing technology cannot detect whether there is an internal leakage, and proposes a ball valve airtightness detection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ball valve airtightness detection device comprises a base, a support plate is fixedly installed on one side of the top of the base, a water tank is rotatably installed on one side of the support plate, a clamping mechanism for fixing the ball valve is provided on one side of the water tank, sealing joints are embedded on two opposite sides of the clamping mechanism, two sealing joints are respectively connected to two ends of the ball valve, a metering cylinder is fixedly installed on the side of each sealing joint away from the ball valve, a flexible hose is connected to the surface of each metering cylinder, two water pumps are fixedly installed on the other side of the water tank, the water inlet ends of the two water pumps are connected to the inside of the water tank, and the water outlet ends of the two water pumps are respectively connected to one end of two flexible hoses away from the metering cylinder.

[0007] As a further technical solution of the utility model, the clamping mechanism includes a slide rail, a first clamping plate and a second clamping plate, one side of the first clamping plate and the second clamping plate are provided with through holes compatible with the sealing joint, the slide rail is fixedly installed on one side of the water tank, the second clamping plate is fixedly installed on one end inside the slide rail, the first clamping plate is slidably installed in the slide rail, one end of the slide rail is provided with a threaded hole running through its surface, and a pitch adjusting screw is threadedly connected in the threaded hole.

[0008] As a further technical solution of the utility model, one end of the pitch adjusting screw is rotatably mounted on one side of the first clamping plate, and a knob is fixedly mounted on the other end of the pitch adjusting screw. The adjacent sides of the first clamping plate and the second clamping plate are both circumferentially evenly provided with multiple positioning protrusions, and the multiple positioning protrusions are slidably connected to the flanges at both ends of the ball valve.

[0009] As a further technical solution of the utility model, scale lines are engraved on the surfaces of the two measuring cylinders, the two measuring cylinders are made of transparent materials, and a liquid collection box is detachably mounted on the top of the base.

[0010] As a further technical solution of the utility model, a servo motor is fixedly installed on the side of the support plate away from the water tank, and the output end of the servo motor passes through the support plate and is fixedly installed on the rotation center of one side of the water tank.

[0011] As a further technical solution of the utility model, a convex rafter with an annular structure is provided on the edge of the support plate close to the water tank, and two limit blocks are fixedly installed on one side of the water tank. The two limit blocks are provided with arc-shaped sliding grooves compatible with the convex rafter on the side close to the support plate, and the convex rafter is slidably embedded in the two limit blocks.

[0012] The beneficial effects of the utility model are:

[0013] By setting a clamping mechanism, the two connecting ends of the ball valve are placed up and down, and two sealing joints and two metering cylinders are set, which are respectively connected to the two ends of the ball valve. During detection, the ball valve is closed, and the water pump located above the equipment is started to extract the detection liquid in the water tank. The detection liquid enters the ball valve from the top of the ball valve through the water pipe, the metering cylinder and the sealing joint. If there is a leakage inside the ball valve, it will flow to the outlet at the bottom of the ball valve, and then flow into the metering cylinder at the bottom of the ball valve. The internal leakage of the ball valve is determined according to the leakage amount, which effectively solves the problem of being unable to detect internal leakage and improves the detection capability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a ball valve airtightness detection device proposed by the utility model;

[0015] Figure 2 This is a bottom view structural schematic diagram of a ball valve airtightness detection device proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the top view of a ball valve airtightness detection device proposed by the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the first clamping plate structure of a ball valve airtightness detection device.

[0018] In the figure: 1. base; 2. support plate; 3. servo motor; 4. liquid collection box; 5. water tank; 6. slide rail; 7. pitch adjusting screw; 8. first clamping plate; 9. second clamping plate; 10. positioning protrusion; 11. sealing joint; 12. metering cylinder; 13. water pump; 14. limit block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Please refer to the attached Figure 1 -Attached Figure 4 A ball valve airtightness detection device comprises a base 1, a support plate 2 is fixedly installed on one side of the top of the base 1, a water tank 5 is rotatably installed on one side of the support plate 2, a clamping mechanism for fixing the ball valve is provided on one side of the water tank 5, sealing joints 11 are embedded on two opposite sides of the clamping mechanism, two sealing joints 11 are respectively connected to two ends of the ball valve, a metering cylinder 12 is fixedly installed on the side of each sealing joint 11 away from the ball valve, a flexible hose is connected to the surface of each metering cylinder 12, two water pumps 13 are fixedly installed on the other side of the water tank 5, the water inlet ends of the two water pumps 13 are connected to the inside of the water tank 5, and the water outlet ends of the two water pumps 13 are respectively connected to one end of the two flexible hoses away from the metering cylinder 12.

[0023] When in use, by setting a clamping mechanism, the two connecting ends of the ball valve are placed up and down, and two sealing joints 11 and two metering cylinders 12 are set, which are respectively connected to the two ends of the ball valve. The sealing joint 11 is made of rubber material to ensure the sealing of the connection end of the ball valve. During detection, the ball valve is closed, and then the water pump 13 located above the equipment is started to extract the detection liquid in the water tank 5. The detection liquid enters the ball valve from the top through the flexible water pipe, the metering cylinder 12 and the sealing joint 11. If there is a leakage inside the ball valve, the detection liquid will flow to the outlet at the bottom of the ball valve, and then flow into the metering cylinder 12 at the bottom of the ball valve. The internal leakage of the ball valve is determined according to the leakage amount, which effectively solves the problem of being unable to detect internal leakage and improves the detection capability of the equipment.

[0024] In this embodiment, the clamping mechanism includes a slide rail 6, a first clamping plate 8 and a second clamping plate 9. A through hole compatible with the sealing joint 11 is provided on one side of the first clamping plate 8 and the second clamping plate 9. The slide rail 6 is fixedly installed on one side of the water tank 5, and the second clamping plate 9 is fixedly installed on one end of the slide rail 6. The first clamping plate 8 is slidably installed in the slide rail 6. A threaded hole penetrating its surface is provided at one end of the slide rail 6. A pitch adjusting screw 7 is threadedly connected in the threaded hole. One end of the pitch adjusting screw 7 is rotatably installed on one side of the first clamping plate 8, and a knob is fixedly installed on the other end of the pitch adjusting screw 7. A plurality of positioning protrusions 10 are evenly arranged on adjacent sides of the first clamping plate 8 and the second clamping plate 9. The plurality of positioning protrusions 10 are slidably connected to the flanges at both ends of the ball valve.

[0025] When in use, the two connecting ends of the ball valve are placed up and down, the bottom of the ball valve is first aligned with the top of the second clamping plate 9, and then the knob is turned to drive the pitch adjusting screw 7 to rotate, thereby driving the first clamping plate 8 to press the top of the ball valve to fix the ball valve. At the same time, the entire clamping mechanism can rotate together with the water tank 5 on the surface of one side of the support plate 2, thereby driving the ball valve to change direction, and both ends of the ball valve can be tested, thereby improving the comprehensiveness of equipment testing.

[0026] In this embodiment, scale lines are engraved on the surfaces of the two measuring cylinders 12, and the two measuring cylinders 12 are made of transparent material. A liquid collection box 4 is detachably installed on the top of the base 1. A servo motor 3 is fixedly installed on the side of the support plate 2 away from the water tank 5. The output end of the servo motor 3 passes through the support plate 2 and is fixedly installed on the rotation center of one side of the water tank 5. A convex rafter with an annular structure is provided on the edge of the support plate 2 close to the water tank 5. Two limit blocks 14 are fixedly installed on one side of the water tank 5. The two limit blocks 14 are provided with arc-shaped slide grooves compatible with the convex rafters on the side close to the support plate 2, and the convex rafters are slidably embedded in the two limit blocks 14.

[0027] When in use, the internal leakage of the ball valve can be clearly observed through the metering cylinder 12, and the liquid collection box 4 can be used to collect the detection liquid dripping when the ball valve leaks, which can be recycled and reused to avoid waste of resources; the limit block 14 is slidably engaged with the convex rafter on one side of the support plate 2, thereby improving the stability of the water tank 5 during the rotation process.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: when in use, by pumping detection liquid to the connection port at the top of the ball valve, if there is leakage inside the ball valve, the detection liquid can flow into the metering cylinder 12 from the connection port at the bottom end of the ball valve. After the pressure is maintained for a specified time, the leakage amount does not exceed the specified value and is qualified. The judgment can be made by observing the capacity of the detection liquid in the metering cylinder 12, and the detection operation is simple and convenient.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ball valve airtightness detection device, comprising a base (1), characterized in that: A support plate (2) is fixedly mounted on one side of the top of the base (1), a water tank (5) is rotatably mounted on one side of the support plate (2), a clamping mechanism for fixing a ball valve is provided on one side of the water tank (5), sealing joints (11) are embedded on two opposite sides of the clamping mechanism, two sealing joints (11) are respectively connected to two ends of the ball valve, a metering cylinder (12) is fixedly mounted on the side of each sealing joint (11) away from the ball valve, a flexible hose is connected to the surface of each metering cylinder (12), two water pumps (13) are fixedly mounted on the other side of the water tank (5), the water inlet ends of the two water pumps (13) are connected to the inside of the water tank (5), and the water outlet ends of the two water pumps (13) are respectively connected to the ends of two flexible hoses away from the metering cylinder (12).

2. A ball valve tightness detection device according to claim 1, characterized in that: The clamping mechanism comprises a slide rail (6), a first clamping plate (8) and a second clamping plate (9); one side of the first clamping plate (8) and the second clamping plate (9) are provided with through holes adapted to the sealing joint (11); the slide rail (6) is fixedly mounted on one side of the water tank (5); the second clamping plate (9) is fixedly mounted on one end inside the slide rail (6); the first clamping plate (8) is slidably mounted inside the slide rail (6); one end of the slide rail (6) is provided with a threaded hole penetrating its surface; a pitch-adjusting screw (7) is threadedly connected to the threaded hole.

3. A ball valve tightness detection device according to claim 2, characterized in that: One end of the pitch adjusting screw (7) is rotatably mounted on one side of the first clamping plate (8), and a knob is fixedly mounted on the other end of the pitch adjusting screw (7). A plurality of positioning protrusions (10) are evenly arranged on adjacent sides of the first clamping plate (8) and the second clamping plate (9), and the plurality of positioning protrusions (10) are slidably connected to flanges at both ends of the ball valve.

4. A ball valve sealing detection device according to claim 1, characterized in that: The surfaces of the two measuring cylinders (12) are both engraved with scale lines, and the two measuring cylinders (12) are both made of transparent material. A liquid collection box (4) is detachably mounted on the top of the base (1).

5. A ball valve tightness detection device according to claim 1, characterized in that: A servo motor (3) is fixedly mounted on the side of the support plate (2) away from the water tank (5); the output end of the servo motor (3) passes through the support plate (2) and is fixedly mounted on the rotation center of one side of the water tank (5).

6. A ball valve tightness detection device according to claim 5, characterized in that: A convex rafter with an annular structure is provided on the edge of one side of the support plate (2) close to the water tank (5), and two limit blocks (14) are fixedly installed on one side of the water tank (5). The two limit blocks (14) are provided with arc-shaped sliding grooves adapted to the convex rafter on one side close to the support plate (2), and the convex rafter is slidably embedded in the two limit blocks (14).

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