Vacuum butterfly valve sealing performance testing device

Abstract

The utility model discloses a vacuum butterfly valve sealing performance testing device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a water tank, the top of the bottom plate is fixedly connected with a support located on the back of the water tank, the top of the support is fixedly connected with an air pump, and the output end of the air pump is fixedly connected with the support. The lower end of the output end of the air pump is fixedly connected with a corrugated pipe, the lower end of the corrugated pipe is fixedly connected with a connector, the outer side of the connector is fixedly sleeved with a supporting plate, and the top of the supporting plate is fixedly connected with a handle. Through the design of the water tank, the butterfly valve can be placed in the water tank for sealing detection, meanwhile, the interior of the butterfly valve can be pressurized through the air pump, the accuracy of a test result is improved, the connector is used for connecting the butterfly valve, meanwhile, the butterfly valve can be conveniently placed in or taken out of the water tank through the lifting type supporting plate, operation is convenient in the test process, and the test efficiency is improved. The use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a vacuum butterfly valve sealing testing device. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve whose closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing. After the butterfly valve is produced, its sealing performance needs to be tested.

[0003] The current butterfly valve testing device is usually used to test by immersing the valve in water and observing bubbles, but it is not convenient to operate the butterfly valve during testing and it is not convenient to take and put the valve. Therefore, it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a vacuum butterfly valve sealing test device, which solves the problem of inconvenience in taking the butterfly valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum butterfly valve sealing test device, comprising a base plate, the top of the base plate is fixedly connected to a water tank, the top of the base plate and the back of the water tank is fixedly connected to a bracket, the top of the bracket is fixedly connected to an air pump, the output end of the air pump is fixedly connected to the bracket, the lower end of the air pump output end is fixedly connected to a bellows, the lower end of the bellows is fixedly connected to a joint, the outer side of the joint is fixedly sleeved with a support plate, the top of the support plate is fixedly connected with a handle, the inner side of the support plate is slidably sleeved with a fixed rod, the fixed rod is fixedly connected to the water tank, a lifting mechanism is arranged on the support plate, and a filtering mechanism is arranged on the air pump.

[0006] Preferably, the top of the fixing rod is fixedly connected to a limiting block, and the limiting block is annular. By designing the limiting block, the support plate can be prevented from being separated from the fixing rod.

[0007] Preferably, the lifting mechanism includes a groove, the fixing rod is provided with a groove inside, a sliding ball is movably sleeved inside the groove, the sliding ball is movably connected to the support plate, a slider is movably sleeved outside the sliding ball, the slider is slidably connected to the support plate, a ball is movably connected inside the slider, the ball is slidably connected to the support plate, the end of the slider away from the sliding ball is fixedly connected to a guide rod, the guide rod is slidably connected to the support plate, and a spring is arranged outside the guide rod. By designing the lifting mechanism, the lifting and lowering of the support plate is convenient.

[0008] Preferably, there are multiple grooves, and the multiple grooves are evenly distributed inside the fixing rod. By designing multiple grooves, the sliding ball can slide into the grooves at different positions.

[0009] Preferably, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the support plate. The spring is designed so that the force of the spring can act on the slider.

[0010] Preferably, the filtering mechanism includes an air inlet pipe, the top of the air pump is provided with an air inlet pipe, the other end of the air inlet pipe is fixedly connected to a fixed box, the fixed box is fixedly connected to a bracket, the interior of the fixed box is fixedly connected to two symmetrically distributed air inlets, the interior of the fixed box is slidably sleeved with a filter screen, the outer side of the filter screen is slidably sleeved with a support sleeve, and the support sleeve is fixedly connected to the inner side wall of the fixed box. By designing the filtering mechanism, dust particles in the air can be filtered out.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model is designed with a water tank so that the butterfly valve can be placed inside the water tank for sealing detection. At the same time, the inside of the butterfly valve can be pressurized by an air pump to improve the accuracy of the test results. The joint is used to connect the butterfly valve. At the same time, the butterfly valve can be easily placed in or taken out of the water tank through the liftable support plate. The test is easy to operate and convenient to use.

[0013] 2. The utility model can draw in external air when pressurizing the inside of the butterfly valve by designing the air inlet pipe. The air drawn into the fixed box and the filter can be filtered to filter dust particles in the air, thereby preventing dust particles from entering the bellows or accumulating inside the joint to cause blockage and affect pressurization. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure;

[0016] Figure 3 For this utility model Figure 1 A front cross-sectional view of a fixing rod;

[0017] Figure 4 For this utility model Figure 3 Enlarged view of point A.

[0018] In the figure: 1, bottom plate; 2, water tank; 3, bracket; 4, air pump; 5, bellows; 6, joint; 7, support plate; 8, lifting mechanism; 9, filtering mechanism; 10, handle; 11, fixing rod; 12, limit block; 81, groove; 82, sliding ball; 83, slider; 84, ball bearing; 85, guide rod; 86, spring; 91, air inlet pipe; 92, fixing box; 93, air inlet; 94, filter; 95, support sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 3 A vacuum butterfly valve sealing test device comprises a bottom plate 1, a water tank 2 is fixedly connected to the top of the bottom plate 1, a bracket 3 is fixedly connected to the top of the bottom plate 1 and located at the back of the water tank 2, an air pump 4 is fixedly connected to the top of the bracket 3, the output end of the air pump 4 is fixedly connected to the bracket 3, a bellows 5 is fixedly connected to the lower end of the output end of the air pump 4, a joint 6 is fixedly connected to the lower end of the bellows 5, a support plate 7 is fixedly sleeved on the outer side of the joint 6, a handle 10 is fixedly connected to the top of the support plate 7, a fixed rod 11 is slidably sleeved inside the support plate 7, the fixed rod 11 is fixedly connected to the water tank 2, a limiting block 12 is fixedly connected to the top of the fixed rod 11, and the limiting block 12 is annular. By designing the limiting block 12, the support plate 7 can be prevented from being separated from the fixing rod 11. A lifting mechanism 8 is arranged on the support plate 7, and a filtering mechanism 9 is arranged on the air pump 4.

[0021] See also Figure 1 , Figure 3 , Figure 4The lifting mechanism 8 includes a groove 81. The interior of the fixed rod 11 is provided with a groove 81. The interior of the groove 81 is movably sleeved with a sliding ball 82. The number of the grooves 81 is multiple, and the multiple grooves 81 are evenly distributed inside the fixed rod 11. By designing multiple grooves 81, the sliding ball 82 can slide into the interior of the grooves 81 at different positions. The sliding ball 82 is movably connected to the support plate 7. The outer side of the sliding ball 82 is movably sleeved with a slider 83. The slider 83 is slidably connected to the support plate 7. The interior of the slider 83 is movably connected with a ball 84. The ball 84 is slidably connected to the support plate 7. The end of the slider 83 away from the sliding ball 82 is fixedly connected with a guide rod 85. The guide rod 85 is slidably connected to the support plate 7. A spring 86 is arranged on the outer side of the guide rod 85. One end of the spring 86 is fixedly connected to the slider 83, and the other end of the spring 86 is fixedly connected to the support plate 7. By designing the spring 86, the force of the spring 86 can act on the slider 83. By designing the lifting mechanism 8, it is convenient to lift the support plate 7.

[0022] See also Figure 1 , Figure 2 The filtering mechanism 9 includes an air inlet pipe 91. The top of the air pump 4 is provided with an air inlet pipe 91. The other end of the air inlet pipe 91 is fixedly connected to a fixed box 92. The fixed box 92 is fixedly connected to the bracket 3. The interior of the fixed box 92 is fixedly connected to two symmetrically distributed air inlets 93. The interior of the fixed box 92 is slidably sleeved with a filter screen 94. The outer side of the filter screen 94 is slidably sleeved with a support sleeve 95. The support sleeve 95 is fixedly connected to the inner side wall of the fixed box 92. By designing the filtering mechanism 9, dust particles in the air can be filtered out.

[0023] The specific implementation process of the utility model is as follows: when in use, first connect and install the butterfly valve on the joint 6, then pull down the handle 10, the handle 10 drives the support plate 7 to move down, the support plate 7 stretches the bellows 5, and at the same time the support plate 7 slides along the fixed rod 11, the support plate 7 drives the sliding ball 82 to slide along the groove 81 inside the fixed rod 11, the arc surface of the groove 81 will squeeze the sliding ball 82, the sliding ball 82 will move horizontally, the sliding ball 82 drives the slider 83 and the guide rod 85 to move horizontally, the slider 83 drives the ball 84 to slide along the support plate 7, and at the same time the slider 83 squeezes the spring 86, so that the sliding ball 82 can be separated from the groove 81, with the movement of the support plate 7, the slider 83 will be given a reaction force under the elastic action of the compressed spring 86, which will push the sliding ball 82 to move horizontally and slide into the groove 81 at another position, at this time the butterfly valve can be lowered into the water tank 2 for testing, which is convenient for putting the butterfly valve into or taking it out of the water tank 2, and the operation is convenient during testing and convenient to use. During the test, it can be observed whether bubbles are generated.

[0024] During the test, the air pump 4 works at the same time. The air pump 4 sucks the external air through the air inlet pipe 91. Since the air inlet pipe 91 is connected to the fixed box 92, a negative pressure state is formed inside the fixed box 92. Then, the external air is sucked through the air inlet 93. The external air flows into the fixed box 92. Under the action of the filter 94, dust and impurity particles in the air can be filtered out to prevent dust particles from entering the bellows 5 or the joint 6 and accumulating to cause blockage and affect pressurization. The air output by the air pump 4 will be input into the butterfly valve through the bellows 5 and the joint 6, which can pressurize the test process and improve the accuracy of the test results.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum butterfly valve sealing test device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a water tank (2); the top of the bottom plate (1) and located at the back of the water tank (2) is fixedly connected to a bracket (3); the top of the bracket (3) is fixedly connected to an air pump (4); the output end of the air pump (4) is fixedly connected to the bracket (3); the lower end of the output end of the air pump (4) is fixedly connected to a bellows (5); the lower end of the bellows (5) is fixedly connected to a joint (6); the outer side of the joint (6) is fixedly sleeved with a support plate (7); the top of the support plate (7) is fixedly connected to a handle (10); the inside of the support plate (7) is slidably sleeved with a fixed rod (11); the fixed rod (11) is fixedly connected to the water tank (2); a lifting mechanism (8) is provided on the support plate (7); and a filtering mechanism (9) is provided on the air pump (4).

2. A vacuum butterfly valve sealing test device according to claim 1, characterized in that: The top of the fixing rod (11) is fixedly connected to a limiting block (12), and the limiting block (12) is ring-shaped.

3. A vacuum butterfly valve sealing test device according to claim 1, characterized in that: The lifting mechanism (8) comprises a groove (81), the interior of the fixing rod (11) is provided with a groove (81), the interior of the groove (81) is movably sleeved with a sliding ball (82), the sliding ball (82) is movably connected to the support plate (7), the outer side of the sliding ball (82) is movably sleeved with a slider (83), the slider (83) is slidably connected to the support plate (7), the interior of the slider (83) is movably connected with a ball (84), the ball (84) is slidably connected to the support plate (7), the end of the slider (83) away from the sliding ball (82) is fixedly connected with a guide rod (85), the guide rod (85) is slidably connected to the support plate (7), and a spring (86) is arranged on the outer side of the guide rod (85).

4. A vacuum butterfly valve sealing test device according to claim 3, characterized in that: There are a plurality of grooves (81), and the plurality of grooves (81) are evenly distributed inside the fixing rod (11).

5. A vacuum butterfly valve sealing test device according to claim 3, characterized in that: One end of the spring (86) is fixedly connected to the slider (83), and the other end of the spring (86) is fixedly connected to the support plate (7).

6. A vacuum butterfly valve sealing test device according to claim 1, characterized in that: The filtering mechanism (9) comprises an air intake pipe (91), the top of the air pump (4) is provided with an air intake pipe (91), the other end of the air intake pipe (91) is fixedly connected to a fixed box (92), the fixed box (92) is fixedly connected to the bracket (3), the interior of the fixed box (92) is fixedly connected to two symmetrically distributed air intake ports (93), the interior of the fixed box (92) is slidably sleeved with a filter screen (94), the outer side of the filter screen (94) is slidably sleeved with a support sleeve (95), and the support sleeve (95) is fixedly connected to the inner wall of the fixed box (92).

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