Valve leakage testing device

Abstract

The utility model relates to the field of valve air tightness detection equipment, and discloses a valve leakage testing device, which comprises a detection platform, the communication pipe is arranged in the detection platform, and the communication pipe is communicated with the outside of the detection platform; the fixing device is arranged on the detection platform; the valve to be detected is arranged on the fixing device; wherein the fixing device further comprises an external fixing breather pipe, an internal fixing breather pipe, an internal fixing breather pipe and an external fixing breather pipe, and the external fixing breather pipe is arranged on one side of the detection platform; according to the valve leakage testing device of the utility model, different fixed ventilation pipes are arranged to be connected with a valve to be detected, so that the problem that the valve to be detected is fixed on a supporting plate through a driving cylinder and an inverted L-shaped clamping piece in the prior art can be solved; and the size of a fixed area formed by the inverted-L-shaped clamping piece is possibly inconsistent with that of the valve.

Description

Technical Field

[0001] The utility model belongs to the field of valve air tightness detection equipment, in particular to a valve leakage testing device. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, and have functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Before using the valve, it is necessary to conduct strength tests and air tightness tests. At present, when conducting valve air tightness tests, the valve is usually fixed on the compressed air pipeline, and then the compressed air pipeline and the valve are placed in the water tank at the same time, and compressed air is introduced into the compressed air pipeline to check whether the valve air tightness meets the requirements. However, the stability and safety of the compressed air supply cannot be ensured during the test. At the same time, the test process is inconvenient and the labor intensity of the testers is high.

[0003] The Chinese utility model patent with publication number CN215492280U discloses a valve air tightness detection device, which sets a first pressure gauge on the first air pipe to observe the gas pressure value and pressure maintenance in the first air pipe, and sets a fixing mechanism on the detection platform to fix the valve to be detected, so as to ensure the fixed stability of the valve to be detected during the test. During the test, soapy water is applied to the valve to be detected and the leakage of the valve to be detected is observed to realize the air tightness detection of the valve to be detected, which reduces the labor intensity of the tester and solves the hidden danger of the valve being put into use due to poor air tightness of the valve. However, the device still has other problems. For example, the device fixes the valve to be detected on the support plate through the driving cylinder and the inverted L-shaped clamping piece. The fixed area formed by the inverted L-shaped clamping piece may be inconsistent with the size of the valve. Utility Model Content

[0004] The purpose of the utility model is to provide a valve leakage testing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the following technical solution is provided: a valve leakage testing device, comprising:

[0006] Testing platform;

[0007] A communication pipe is disposed inside the detection platform and communicated with the outside of the detection platform;

[0008] A fixing device, arranged on the detection platform;

[0009] The valve to be tested is arranged on the fixing device;

[0010] Wherein, the fixing device also includes:

[0011] An external fixed ventilation tube is arranged on one side of the detection platform;

[0012] The internal fixed ventilation pipe is arranged on the other side of the detection platform.

[0013] In the above technical solution, further, a rubber sealing layer is provided on the outer surface of the external fixed ventilation pipe and the inner surface of the internal fixed ventilation pipe.

[0014] In any of the above technical solutions, further, the external fixed ventilation pipe and the internal fixed ventilation pipe are configured as pipes of different diameters.

[0015] In any of the above technical solutions, further, there are two connecting pipes, which are respectively connected to the external fixed ventilation pipe and the internal fixed ventilation pipe.

[0016] In any of the above technical solutions, further, the fixing device also includes:

[0017] An electric push rod is arranged inside the detection platform;

[0018] A fixed plate, configured on the output shaft of the electric push rod;

[0019] The fixing frame is composed of a plurality of inclined inverted L-shaped fixing rods, which are arranged on the periphery of the outer fixed ventilation pipe and the inner fixed ventilation pipe and wrap the valve to be detected.

[0020] In any of the above technical solutions, further, a support plate in the vertical direction is provided on one side of the detection platform, wherein two channels are opened on the support plate, one end of the channel is connected with a dripping tube, the water outlet of the dripping tube is directly opposite to the top of the valve to be detected, and the end of the channel away from the dripping tube is designed with a plug for controlling the liquid flow rate of the dripping tube.

[0021] In any of the above technical solutions, further, a pressure gauge is provided on the support plate, and an air pressure sensor is placed inside the connecting tube, the air pressure sensor is electrically connected to the pressure gauge, and an air intake switch valve is provided on the connecting tube where the detection platform is connected to the outside world.

[0022] The beneficial effects of the utility model are:

[0023] 1. By designing different connection methods of reducers, it is possible to fix valves of different shapes and sizes to be tested and test their air tightness.

[0024] 2. By designing a dropper above the valve to be tested for fixing, the step of manually applying the foaming liquid above the valve to be tested is omitted.

[0025] 3. An electric push plate is designed below the reducer, a fixing plate is arranged above the electric push plate, and a plurality of inclined inverted L-shaped fixing rods are arranged on the fixing plate, so that the valves to be tested and the reducers of different sizes and shapes can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0028] Explanation of reference numerals: 100, detection platform; 110, connecting pipe; 120, air intake switch valve; 200, fixing device; 210, external fixed ventilation pipe; 220, internal fixed ventilation pipe; 230, rubber sealing layer; 240, electric push rod; 250, fixed disk; 260, fixed frame; 261, fixed rod; 300, support plate; 310, channel; 320, drip tube; 330, plug; 340, pressure gauge. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] Embodiment 1:

[0032] like Figure 1-Figure 2 As shown, this embodiment provides a valve leakage testing device, comprising:

[0033] Detection platform 100;

[0034] The connecting pipe 110 is disposed inside the detection platform 100 and is connected to the outside of the detection platform 100;

[0035] The fixing device 200 is disposed on the detection platform 100;

[0036] The valve to be tested is arranged on the fixing device 200;

[0037] The fixing device 200 further includes:

[0038] An external fixed ventilation tube 210 is disposed on one side of the detection platform 100;

[0039] The internal fixed ventilation tube 220 is disposed on the other side of the detection platform 100 .

[0040] In the present technical solution, in order to enable the detection platform 100 to meet the air tightness requirements of valves to be detected with different sizes and different connection methods, a connecting pipe 110 is provided inside the detection platform 100, and a fixing device 200 is provided on the detection platform 100. The fixing device 200 is provided with an external fixed ventilation pipe 210 and an internal fixed ventilation pipe 220. The connecting pipe 110 is connected with the external fixed ventilation pipe 210 and the internal fixed ventilation pipe 220, and gas is injected from the connecting pipe 110 and circulated into the external fixed ventilation pipe 210 and the internal fixed ventilation pipe 220. According to the connection method of the valve to be detected, it is fixed on the external fixed ventilation pipe 210 or the internal fixed ventilation pipe 220 to detect the air tightness of the valve to be detected.

[0041] Embodiment 2:

[0042] This embodiment provides a valve leakage testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] like Figure 1-Figure 2 As shown, in this embodiment, a rubber sealing layer 230 is disposed on the outer surface of the outer fixed ventilation pipe 210 and the inner surface of the inner fixed ventilation pipe 220 .

[0044] In the present technical solution, in order to enable a sealed connection between the valve to be inspected and the external fixed ventilation tube 210 and the internal fixed ventilation tube 220, a rubber sealing layer 230 is provided on the outer surface of the external fixed ventilation tube 210, and a rubber sealing layer 230 is provided on the inner surface of the internal fixed ventilation tube 220, so that the valve to be inspected can be fixed more closely thereto.

[0045] Embodiment 3:

[0046] This embodiment provides a valve leakage testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0047] like Figure 1 and Figure 2 As shown, in this embodiment, the external fixed ventilation pipe 210 and the internal fixed ventilation pipe 220 are configured as pipes of different diameters.

[0048] In the present technical solution, in order to detect valves of different sizes to be inspected, the external fixed ventilation tube 210 and the internal fixed ventilation tube 220 are set as different diameter tubes, so that valves of different diameters to be inspected can be connected to the same external fixed internal ventilation tube or the internal fixed ventilation tube 220, without replacing the ventilation tube, thereby reducing the workload.

[0049] Embodiment 4:

[0050] This embodiment provides a valve leakage testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] like Figure 1-Figure 2 As shown, in this embodiment, there are two connecting pipes 110 , which are connected to the external fixed ventilation pipe 210 and the internal fixed ventilation pipe 220 respectively.

[0052] In the present technical solution, since there is an external fixed ventilation tube 210 and an internal fixed ventilation tube 220, two connecting tubes 110 need to be arranged inside the detection platform 100, which are respectively connected to the external fixed ventilation tube 210 and the internal fixed ventilation tube 220. In this way, the detection between the two ventilation tubes does not interfere with each other, and the air tightness of the two valves to be detected can be detected at the same time, which saves time.

[0053] Embodiment 5:

[0054] This embodiment provides a valve leakage testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0055] like Figure 1-Figure 2 As shown, in this embodiment, the fixing device 200 further includes:

[0056] The electric push rod 240 is disposed inside the detection platform 100;

[0057] The fixing plate 250 is disposed on the output shaft of the electric push rod 240;

[0058] The fixing frame 260 is composed of a plurality of inclined inverted L-shaped fixing rods 261, which are arranged on the periphery of the outer fixed ventilation pipe 210 and the inner fixed ventilation pipe 220, and wrap the valve to be tested.

[0059] In the present technical solution, in order to further fix the valve to be inspected when it is fixed above the external fixed ventilation pipe 210 or the internal fixed ventilation pipe 220, a fixing plate 250 is further provided on the outside of the external fixed ventilation pipe 210 and the internal fixed ventilation pipe 220, and an inclined inverted L-shaped fixing rod 261 is provided on the upper surface of the fixing plate 250, and a plurality of fixing rods 261 form an inverted cone-shaped fixing area. When the valve to be inspected is fixed above the external fixed ventilation pipe 210 and the internal fixed ventilation pipe 220, the position of the disc can be changed by opening the electric push rod 240 inside the detection platform 100, thereby changing the distance between the fixing area formed by the fixing rod 261 and the valve to be inspected, thereby achieving a fixing effect.

[0060] Embodiment 6:

[0061] This embodiment provides a valve leakage testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0062] like Figure 1-Figure 2 As shown, in the present embodiment, a support plate 300 is further provided on one side of the detection platform 100 in the vertical direction, wherein two channels 310 are provided on the support plate 300, one end of the channel 310 is connected to a dripping tube 320, the water outlet of the dripping tube 320 is directly opposite to the top of the valve to be detected, and a plug 330 for controlling the liquid flow rate of the dripping tube 320 is designed at one end of the channel 310 away from the dripping tube 320.

[0063] In the present technical solution, in order to more intuitively observe whether the air tightness of the valve to be tested is good, a support plate 300 is arranged in the vertical direction on one side of the testing platform 100, and two L-shaped channels 310 are opened inside the support plate 300. A dropper 320 is connected to the side of the channel 310 close to the fixing device 200, and the water outlet of the dropper 320 is directly facing the top of the valve to be tested. At the same time, a removable plug 330 is designed at the other end of the channel 310. By changing the connection position between the plug 330 and the channel 310, the flow rate of the liquid in the dropper 320 can be controlled. The flow rate of the liquid in the dropper 320 can be changed according to the detection speed of the valve to be tested. When the valve to be tested is fixed, the plug 330 can be opened, and the liquid in the dropper 320 can be dripped onto the valve to be tested. After the plug 330 is tightly plugged, the dropper 320 is controlled to stop dripping, and the plug 330 can be opened when it is needed.

[0064] Embodiment 7:

[0065] This embodiment provides a valve leakage testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] like Figure 1-Figure 2 As shown, in this embodiment, a pressure gauge 340 is provided on the support plate 300, and an air pressure sensor is placed inside the connecting pipe 110, and the air pressure sensor is electrically connected to the pressure gauge 340, wherein the connecting pipe 110 is provided with an air intake switch valve 120 at the place where the detection platform 100 is connected to the outside world.

[0067] In the present technical solution, for double-layer detection, an air pressure sensor is arranged inside the connecting pipe 110, and an air intake switch valve 120 is arranged at the place where the connecting pipe 110 is connected to the outside world on the detection platform 100. The air intake switch valve 120 can change the amount of gas inside the connecting pipe 110, and thus change the size of the air pressure detected by the air pressure sensor. A pressure variable is arranged on the support plate 300, and the pressure gauge 340 is electrically connected to the air pressure sensor. In this way, the change of the air pressure inside the connecting pipe 110 detected by the air pressure sensor can be directly reflected on the pressure gauge 340, and the air pressure inside the connecting pipe 110 can be clearly seen with the naked eye whether the value changes after the air intake switch valve 120 is closed, so that it can be reflected whether the air tightness of the valve to be detected is good.

[0068] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A valve leakage testing device, characterized in that: include: Detection platform (100); A connecting pipe (110) is disposed inside the detection platform (100), and the connecting pipe (110) is connected to the outside of the detection platform (100); A fixing device (200) is arranged on the detection platform (100); The valve to be tested is arranged on the fixing device (200); Wherein, the fixing device (200) further comprises: An external fixed ventilation tube (210) is arranged on one side of the detection platform (100); The internal fixed ventilation tube (220) is arranged on the other side of the detection platform (100).

2. A valve leakage testing device according to claim 1, characterized in that: A rubber sealing layer (230) is provided on the outer surface of the outer fixed ventilation pipe (210) and the inner surface of the inner fixed ventilation pipe (220).

3. A valve leakage testing device according to claim 1, characterized in that: The external fixed ventilation pipe (210) and the internal fixed ventilation pipe (220) are configured as pipes of different diameters.

4. A valve leakage testing device according to claim 1, characterized in that: There are two connecting pipes (110), which are respectively connected to the external fixed ventilation pipe (210) and the internal fixed ventilation pipe (220).

5. A valve leakage testing device according to claim 1, characterized in that: The fixing device (200) further comprises: An electric push rod (240) is disposed inside the detection platform (100); A fixed disk (250) is disposed on the output shaft of the electric push rod (240); The fixing frame (260) is composed of a plurality of inclined inverted L-shaped fixing rods (261) and is arranged on the periphery of the outer fixing ventilation pipe (210) and the inner fixing ventilation pipe (220) to wrap the valve to be tested.

6. A valve leakage testing device according to claim 1, characterized in that: A support plate (300) in a vertical direction is also provided on one side of the detection platform (100), wherein two channels (310) are provided on the support plate (300), one end of the channel (310) is connected to a dripping tube (320), the water outlet of the dripping tube (320) is directly facing the top of the valve to be detected, and a plug (330) for controlling the liquid flow rate of the dripping tube (320) is designed at one end of the channel (310) away from the dripping tube (320).

7. A valve leakage testing device according to claim 6, characterized in that: A pressure gauge (340) is provided on the support plate (300), and an air pressure sensor is placed inside the connecting pipe (110), the air pressure sensor is electrically connected to the pressure gauge (340), wherein the connecting pipe (110) is provided with an air intake switch valve (120) at a location where the detection platform (100) is connected to the outside.

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