Valve pressure testing tool

Abstract

The utility model discloses a valve pressure test tool, comprising a clamping assembly comprising two vertically arranged clamping plates, the two clamping plates are arranged at an interval left and right, each clamping plate is provided with a first through hole, and a clamping space used for clamping a valve is arranged between the two first through holes; the adjusting mechanism is used for adjusting the distance between the two clamping plates; the pressurizing assembly comprises a pressurizing pipe and a connector, and the pressurizing pipe is connected between the connector and the first through hole of one clamping plate. When in use, a valve to be tested is placed in the clamping space, two interfaces of the valve cover the first through holes of the two clamping plates respectively, and then a compressed air system or other devices capable of supplying compressed air in a factory is connected to the joint, so that one interface of the valve is inflated and pressurized through the pressurizing pipe; the valve is controlled to be in a closed state, the other connector of the valve is communicated with the atmosphere, and whether the valve element of the valve can be completely closed or not can be tested by observing the working condition of the valve.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a pressure testing fixture for valve components. Background Technology

[0002] For the purchased valves, it is necessary to test whether the valve core can close completely, which requires pressure testing. Existing testing methods are inconvenient for fixing the valves, resulting in lengthy disassembly and reassembly times for each valve, leading to low efficiency. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a valve pressure testing fixture.

[0004] The valve pressure testing fixture according to an embodiment of the present invention includes:

[0005] The clamping assembly includes two vertically arranged clamping plates, which are spaced apart from each other. Each clamping plate is provided with a first through hole, and a clamping space for clamping valve components is provided between the two first through holes.

[0006] An adjustment mechanism is used to adjust the distance between the two clamping plates;

[0007] A pressurization assembly includes a pressurization tube and a connector, the pressurization tube being connected between the connector and a first through hole in one of the clamps.

[0008] The valve pressure testing fixture according to the embodiments of this utility model has at least the following technical effects: In use, the valve to be tested is placed in the clamping space, and the two ports of the valve are respectively covered by the first through holes of the two clamping plates. Then, the factory's compressed air system or other device that can supply compressed gas is connected to the connector, so that one port of the valve is pressurized through the pressurization pipe to control the valve to be in a closed state. The other port of the valve is connected to the atmosphere. By observing the working status of the valve, it is possible to test whether the valve core of the valve can be completely closed. In particular, by setting an adjustment mechanism, the distance between the two clamping plates can be adjusted to clamp or release the valve, which facilitates the disassembly and assembly of the valve and helps to improve the testing efficiency.

[0009] According to some embodiments of the present invention, each clamping plate is provided with a sealing gasket, the sealing gasket is provided on the side of the clamping plate facing the clamping space, and the sealing gasket is provided with a second through hole coaxial with the first through hole.

[0010] According to some embodiments of the present invention, the adjustment mechanism includes a base frame, at least one of the clamping plates is a movable plate, the movable plate is slidably disposed on the base frame in a transverse direction, and a positioning element is connected between the movable plate and the base frame.

[0011] According to some embodiments of this utility model, the positioning element is a positioning bolt, the base frame is provided with a laterally extending waist-shaped hole, and the positioning bolt passes through the waist-shaped hole.

[0012] According to some embodiments of the present invention, the adjusting mechanism includes a screw and a locking nut, each of the clamping plates is provided with a third through hole, and the screw passes through two of the third through holes and is threadedly connected to the locking nut.

[0013] According to some embodiments of the present invention, the screw and the locking nut are collectively referred to as a locking assembly, and the adjusting mechanism includes a plurality of the locking assemblies.

[0014] According to some embodiments of the present invention, the pressurization assembly further includes a pressure gauge, which is connected to the pressurization pipe.

[0015] According to some embodiments of this utility model, the connector is a filling valve.

[0016] According to some embodiments of this utility model, the pressurization pipe is equipped with a buffer tank.

[0017] According to some embodiments of the present invention, the buffer tank is connected between the pressurization pipe and the pressure gauge.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the valve pressure testing fixture according to an embodiment of this utility model.

[0021] In the attached image:

[0022] 100-Base frame; 110-Crossbeam; 111-Oval hole; 200-Pressure gauge; 300-Buffer tank; 310-Pressure pipe; 311-Filling valve; 320-Pipe clamp; 400-Clamping plate; 410-Positioning bolt; 420-Sealing gasket; 421-Second through hole; 430-Screw. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, while "above," "below," "within," etc., are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] The following is for reference. Figure 1 This invention describes a valve pressure testing fixture according to an embodiment of the present invention.

[0027] The valve pressure testing fixture of this utility model includes a clamping assembly, an adjusting mechanism, and a pressurizing assembly.

[0028] The clamping assembly includes two vertically arranged clamping plates 400, which are spaced apart from each other and parallel to each other. The two clamping plates 400 are referred to as the first plate and the second plate, respectively. The first plate is located to the left of the second plate. Each clamping plate 400 is provided with a first through hole, and a clamping space for clamping valve components is provided between the two first through holes. The two clamping plates 400 can be installed on the same base frame 100, or they can be installed on different support frames. At least one clamping plate 400 needs to have the freedom of lateral movement.

[0029] The adjustment mechanism is used to adjust the distance between the two clamps 400. The adjustment mechanism can be electrically adjusted or manually adjusted.

[0030] The pressurization assembly includes a pressurization pipe 310 and a connector. The pressurization pipe 310 is connected between the connector and a first through hole of one of the clamps 400. The pressurization pipe 310 extends laterally. The right end of the pressurization pipe 310 is sealed to the edge of the first through hole of the first plate, so that the gas in the pressurization pipe 310 can be sent out from the first through hole of the first plate. The left end of the pressurization pipe 310 is connected to a connector to facilitate gas supply to the pressurization pipe 310.

[0031] Understandably, for conventional valves, the two ports are located at the left and right ends of the valve, respectively, and face left and right. This embodiment can be used to test valves with the above-mentioned structure. In use, the valve to be tested is placed in the clamping space, with the two ports of the valve covering the first through holes of the two clamping plates 400. Then, the factory's compressed air system or other device that can supply compressed gas is connected to the connector to pressurize one of the ports of the valve through the pressurization pipe 310, controlling the valve to be in a closed state. The other port of the valve is connected to the atmosphere. By observing the working condition of the valve, the valve core of the valve can be tested to see if it can be completely closed. By setting an adjustment mechanism, the distance between the two clamping plates 400 can be adjusted to clamp or release the valve, which facilitates the disassembly and assembly of the valve and improves testing efficiency.

[0032] In some embodiments of this utility model, each clamping plate 400 is provided with a sealing gasket 420. The sealing gasket 420 is located on the side of the clamping plate 400 facing the clamping space, and the sealing gasket 420 has a second through hole 421 coaxial with the first through hole. The sealing gasket 420 can be a rubber gasket, which can be fixed to the clamping plate 400 by adhesive. The rubber gasket of the first plate is stacked on its right side, and the rubber gasket of the second plate is stacked on its left side. In this way, the sealing effect between the clamping plate 400 and the valve is better, and the pressure test results of the valve are more accurate.

[0033] In some embodiments of this utility model, the adjusting mechanism includes a base frame 100, at least one of the clamping plates 400 being a movable plate. The movable plate is slidably disposed on the base frame 100 in a lateral direction, and a positioning member is connected between the movable plate and the base frame 100. In use, after adjusting the lateral position of the movable plate, the positioning member is used to fix the position of the movable plate, thereby achieving the purpose of adjusting the distance between the two clamping plates 400. It is possible that both clamping plates 400 are movable plates, or only the first plate, or only the second plate, are movable plates.

[0034] In some embodiments of this utility model, the positioning element is a positioning bolt 410, and the base frame 100 is provided with a laterally extending oblong hole 111, through which the positioning bolt 410 passes. Loosening the positioning bolt 410 adjusts the lateral position of the movable plate, while tightening it fixes the position of the movable plate, thus achieving the purpose of adjusting the distance between the two clamping plates 400.

[0035] In some embodiments of this utility model, the adjusting mechanism includes a screw 430 and a locking nut. Each clamping plate 400 is provided with a third through hole. The screw 430 passes through two third through holes and is threadedly connected to the locking nut. The third through hole extends laterally through the clamping plate 400. The left end of the screw 430 passes through the third through hole of the first plate from right to left, and the right end of the screw 430 passes through the third through hole of the second plate from left to right. One end of the screw 430 is provided with a bolt head, which is an integral component of the screw 430. The other end of the screw 430 is provided with a locking nut. Both clamping plates 400 are located between the bolt head and the locking nut. Tightening the screw 430 and the locking nut allows the two clamping plates 400 to clamp the valve component. Alternatively, two locking nuts can be provided, each threadedly connected to both ends of the screw 430. Both clamping plates 400 are located between the two locking nuts, and tightening the two locking nuts allows the two clamping plates 400 to clamp the valve component.

[0036] In some embodiments of this utility model, the screw 430 and the locking nut are collectively referred to as locking components, and the adjusting mechanism includes multiple locking components. The first plate is provided with a third through hole for each locking component, and the second plate is also provided with a third through hole for each locking component; multiple locking components are evenly arranged around the clamping space. For example, the number of locking components is four, and the four locking components are respectively located on the upper front side, lower front side, upper rear side, and lower rear side of the clamping space, so that when the valve is clamped, the force on the clamping plate 400 is more balanced and the structure is more stable.

[0037] In some embodiments of this invention, the pressurizing assembly further includes a pressure gauge 200, which is connected to the pressurizing pipe 310. This allows operators to monitor the pressure gauge 200 and control the air pressure input to the pressurizing pipe 310, enabling the valve to undergo leakage testing under preset pressure conditions.

[0038] In some embodiments of this utility model, the connector is a filling valve 311. The filling valve 311 has a one-way flow function. When in use, the operator can input a certain pressure of gas into the pressurization pipe 310, and then the factory's compressed air system can be separated from the filling valve 311. By observing the pressure change of the pressure gauge 200, it can be determined whether the valve core of the valve can be completely closed.

[0039] In some embodiments of this utility model, the pressurizing pipe 310 is equipped with a buffer tank 300. The buffer tank 300 is connected in series in the middle of the pressurizing pipe 310 and has a large capacity to hold a certain amount of gas. It is understood that during the operation of disconnecting the factory's compressed air system from the filling valve 311 after the operator inputs gas at a certain pressure into the pressurizing pipe 310, a small amount of gas leakage may occasionally occur in the pressurizing pipe 310, reducing the amount of gas in the pressurizing pipe 310, which leads to inaccurate test results. In this embodiment, by setting up the buffer tank 300, the buffer tank 300 has a certain pressure stabilizing effect, and even if a small amount of gas leakage occurs, the gas in the pressurizing pipe 310 can be kept stable, resulting in more accurate test results.

[0040] In some embodiments of this invention, the buffer tank 300 is connected between the pressurization pipe 310 and the pressure gauge 200. This makes the reading of the pressure gauge 200 more stable.

[0041] The base frame 100 in this embodiment includes a frame with supporting feet at each of the four corners. Two laterally extending crossbeams 110 are provided within the frame, spaced apart from each other. The frame, supporting feet, and crossbeams 110 can all be made of angle iron. Each crossbeam 110 has a laterally extending oblong hole 111. Two clamping plates 400 are positioned above the two crossbeams 110. Each clamping plate 400 has a mounting base at its bottom, which is a laterally arranged plate. The mounting base has two vertically arranged positioning through holes, each containing a positioning bolt 410. The positioning bolt 410 passes through the positioning through hole and the oblong hole 111 from top to bottom and is threadedly connected to the positioning bolt 410. Buffer tanks 300 are spaced apart to the left of the first plate. Each buffer tank 300 is a laterally extending cylinder. The right end of the buffer tank 300 communicates with the first through hole of the first plate. The left end of the buffer tank 300... The buffer tank 300 is connected to the filling valve 311 at one end, and to the pressure gauge 200 at the rear. Pipe clamps 320 are provided at both ends of the buffer tank 300, and the pipe clamps 320 are bolted to two crossbeams 110, allowing the buffer tank 300 to be detachably installed on the two crossbeams 110. The pressure gauge 200 is located at the rear upper part of the buffer tank 300, and a support frame connects the pressure gauge 200 to the frame, keeping the pressure gauge 200 relatively far from the surrounding space of the clamping space. This facilitates observation and avoids affecting the disassembly and assembly of the valve. Operators can observe the pressure gauge 200 while simultaneously stopping the air supply to the filling valve 311, facilitating operation. This invention facilitates pressure testing of valves while maintaining a simple structure. All components are common parts, requiring only simple assembly. The manufacturing and usage costs are relatively low, making it highly suitable for widespread use.

[0042] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A valve pressure testing fixture, characterized in that, include: The clamping assembly includes two vertically arranged clamping plates (400), which are spaced apart from each other. Each clamping plate (400) is provided with a first through hole, and a clamping space for clamping valve components is provided between the two first through holes. An adjustment mechanism is provided for adjusting the distance between the two clamping plates (400); The pressurization assembly includes a pressurization tube (310) and a connector, the pressurization tube (310) being connected between the connector and a first through hole in one of the clamps (400).

2. The valve pressure testing fixture according to claim 1, characterized in that: Each of the clamping plates (400) is provided with a sealing gasket (420), the sealing gasket (420) is provided on the side of the clamping plate (400) facing the clamping space, and the sealing gasket (420) is provided with a second through hole (421) coaxial with the first through hole.

3. The valve pressure testing fixture according to claim 1, characterized in that: The adjustment mechanism includes a base frame (100), at least one of the clamps (400) is a movable plate, the movable plate is slidably disposed on the base frame (100) in a transverse direction, and a positioning element is connected between the movable plate and the base frame (100).

4. The valve pressure testing fixture according to claim 3, characterized in that: The positioning element is a positioning bolt (410), and the base frame (100) is provided with a laterally extending waist-shaped hole (111), through which the positioning bolt (410) passes.

5. The valve pressure testing fixture according to claim 1, characterized in that: The adjusting mechanism includes a screw (430) and a locking nut. Each clamping plate (400) is provided with a third through hole. The screw (430) passes through two of the third through holes and is threadedly connected to the locking nut.

6. The valve pressure testing fixture according to claim 5, characterized in that: The screw (430) and the locking nut are collectively referred to as the locking assembly, and the adjusting mechanism includes a plurality of the locking assemblies.

7. The valve pressure testing fixture according to claim 1, characterized in that: The pressurization assembly also includes a pressure gauge (200), which is connected to the pressurization tube (310).

8. The valve pressure testing fixture according to claim 7, characterized in that: The connector is a filling valve (311).

9. The valve pressure testing fixture according to claim 8, characterized in that: The pressurization pipe (310) is equipped with a buffer tank (300).

10. The valve pressure testing fixture according to claim 9, characterized in that: The buffer tank (300) is connected between the pressurization pipe (310) and the pressure gauge (200).

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