A valve leakage testing device

Abstract

The utility model belongs to valve test equipment technical field discloses a valve leakage test device, and the existing valve leakage test device passes through the mode of pressurizing liquid, makes liquid flow through the valve to be measured, when the valve to be measured opens, the pressure of water is unloaded, cannot make the valve to be measured have stable water pressure, the utility model example's technical scheme, including base, the top surface of base is provided with two mounting plates, the top surface of base is provided with moving plate, the bottom surface of moving plate and the top surface of base are provided with guide device, one mounting plate is fixedly connected with one side of moving plate, the utility model sets up the baffle, can make the water in the valve to be measured have certain pressure through pressure device, can make the water pressure in the valve to be measured stable, and then can detect whether the valve to be measured exists leakage under different water pressure, in addition, the movement of moving plate is convenient for installing and disassembling the valve to be measured, the structure is more simple, and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve testing equipment, specifically relating to a valve leakage testing device. Background Technology

[0002] A valve is a device used to control the flow of fluids (liquids, gases, steam, etc.), regulating the flow rate, pressure, and direction of the fluid by opening, closing, or partially closing.

[0003] If a valve leaks during application, it may cause a major accident. Therefore, a leak test is required after valve manufacturing. For some special applications, periodic leak tests are also required. Traditional valve testing methods generally only test the rated pressure of the valve. When special circumstances occur, such as a sharp increase in the flow rate of the medium inside the valve, the pressure on the valve will gradually increase. At this time, the rated pressure test alone cannot accurately assess the valve's sealing performance. Therefore, the existing valve leak test methods need to be improved.

[0004] In the prior art, Chinese patent with publication number CN223037330U discloses a valve leakage test device. This prior art pressurizes the liquid so that the liquid flows through the valve to be tested. When the valve to be tested is opened, the water pressure is released, which makes it impossible to have a stable water pressure inside the valve to be tested. Utility Model Content

[0005] To address the shortcomings of the existing technology, the present invention aims to provide a valve leakage test device. This valve leakage test device is equipped with a baffle and a pressure device to ensure that the water inside the valve under test has a certain pressure, thereby stabilizing the water pressure inside the valve and detecting whether the valve under test leaks under different water pressures. In addition, the movable plate facilitates the installation and disassembly of the valve under test, making the structure simpler and easier to use.

[0006] The technical solution adopted by this valve leakage testing device to solve its technical problem is as follows:

[0007] A valve leakage test device is provided, including a base, two mounting plates on the top surface of the base, a movable plate on the top surface of the base, and a guide device on the bottom surface of the movable plate and the top surface of the base. One mounting plate is fixedly connected to one side of the movable plate, and the other mounting plate is fixedly connected to the base. Connecting pipes are fixedly installed on opposite sides of the mounting plates, and the connecting pipes penetrate the mounting plates. Evenly distributed threaded blind holes are opened on opposite sides of the mounting plates. A water inlet device is fixedly installed on one side of the top surface of the base, and the water inlet device is connected and communicates with one of the connecting pipes. A one-way valve is installed on one of the connecting pipes. A housing is provided on the top surface of the movable plate, and another connecting pipe penetrates one side of the housing and is fixedly connected. A baffle is provided inside the housing, and a pressure device that applies pressure to the baffle is provided inside the housing. A drain pipe is fixedly installed at the bottom of the other side of the housing.

[0008] Furthermore, the guiding device includes a guide groove and a guide slider. The guide groove is formed on the top surface of the base, and the guide slider is fixedly installed on the bottom surface of the movable plate. The guide slider is located in the guide groove and slides in cooperation with it.

[0009] Furthermore, liquid flow meters are installed on the two connecting pipes respectively.

[0010] Furthermore, the water inlet device is a water pump, the outlet end of the water pump is connected to and interconnected with the corresponding connecting pipe, and the water inlet pipe of the water pump is fixedly connected to the water inlet pipe.

[0011] Furthermore, sealing gaskets are fixedly installed on the opposite side of the mounting plate and on one side of the baffle.

[0012] Furthermore, the pressure device includes a housing, one side of which extends through and is fixedly connected to the other side of the box. A screw is installed inside the housing, one end of which extends through and is rotatably connected to the housing. A movable plate is installed inside the housing, the screw extends through and is threaded into the movable plate. A limit plate is installed inside the housing, a spring is installed between the limit plate and the movable plate, one end of a moving rod is fixedly connected to one side of the limit plate, the moving rod extends through and is clearance-fitted to the housing, and the other end of the moving rod is fixedly connected to a baffle.

[0013] Furthermore, an anti-slip handle is fixedly installed at one end of the screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a valve leakage testing device. The user installs the valve to be tested between two mounting plates using bolts and opens the valve. After installation, the user opens the water inlet device to allow water to flow into the corresponding connecting pipe, then into the valve and another connecting pipe. Finally, the water pushes open the baffle and flows into the chamber. The resistance of the baffle can be adjusted by a thrust device, thereby controlling the water pressure inside the valve and testing its flow-guiding effect under different water pressures. Compared with existing technologies, this utility model features a baffle and a pressure device that ensures the water inside the valve has a certain pressure, stabilizing the water pressure and allowing for the detection of leaks under different water pressures. Furthermore, the movable plate facilitates the installation and disassembly of the valve, resulting in a simpler structure and easier use.

[0016] 2. The valve leakage test device of this utility model can guide the moving plate through the guide groove and guide slider, thereby controlling the left and right movement of the moving plate, which facilitates the installation and disassembly of the valve to be tested.

[0017] 3. A valve leakage test device according to this utility model can detect the liquid flow rate of two connecting pipes through a liquid flow meter. After the liquid flow through the valve under test is stable, the change range of the two liquid flow meters can be observed to determine whether there is leakage.

[0018] 4. A valve leakage test device according to this utility model connects a water pump to a power source. When the water pump is turned on, it can add water into the corresponding connecting pipe along the inlet pipe. The water inlet device has a simple structure and is easy to use.

[0019] 5. In a valve leakage test device according to this utility model, the sealing gasket can increase the sealing performance and thus prevent water leakage.

[0020] 6. In a valve leakage test device according to this utility model, rotating the screw can drive the movable plate to move left and right. The left and right movement of the movable plate can adjust the compression of the spring, thereby adjusting the thrust of the spring to the baffle through the limiting plate and the moving rod. The pressure device has a simple structure, and the pressure can be adjusted by rotating the screw, making it convenient to use.

[0021] 7. In this utility model example, a valve leakage test device has an anti-slip handle that provides a point of leverage for the user, making it easy for the user to rotate the screw and convenient to use. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] In the diagram: 1. Base; 2. Mounting plate; 3. Moving plate; 4. Connecting pipe; 5. Box body; 6. Baffle; 7. Guide groove; 8. Guide slider; 9. Water pump; 10. Box body; 11. Screw; 12. Movable plate; 13. Limiting plate; 14. Moving rod; 15. Spring; 16. Anti-slip handle. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1As shown, a valve leakage testing device includes a base 1, with two mounting plates 2 on the top surface of the base 1. The top surface of the base 1 is characterized by a movable plate 3, with guide devices on the bottom surface of the movable plate 3 and the top surface of the base 1. One mounting plate 2 is fixedly connected to one side of the movable plate 3, and the other mounting plate 2 is fixedly connected to the base 1. Connecting pipes 4 are fixedly installed on opposite sides of the mounting plates 2, penetrating the mounting plates 2. Evenly distributed threaded blind holes are formed on the opposite surfaces of the mounting plates 2. The opposite surfaces of the mounting plates 2 are connected by bolts. The valve under test has a water inlet device fixedly installed on one side of the top surface of the base 1. The water inlet device is connected to and communicates with one of the connecting pipes 4. One of the connecting pipes 4 is equipped with a one-way valve. The top surface of the moving plate 3 is equipped with a box 5. Another connecting pipe 4 passes through one side of the box 5 and is fixedly connected. A baffle 6 is installed inside the box 5. The baffle 6 blocks the connecting pipe 4. A pressure device is installed inside the box 5 to apply pressure to the baffle 6. The pressure device can apply a rightward force to the baffle 6, so that the baffle 6 blocks the corresponding connecting pipe 4. A drain pipe is fixedly installed at the bottom of the other side of the box 5. The user installs the valve to be tested between two mounting plates 2 using bolts and opens the valve. After installation, the user opens the water inlet device to allow water to flow into the corresponding connecting pipe 4, which then enters the valve to be tested and another connecting pipe 4. Finally, the water pushes open the baffle 6 and flows into the housing 5. The resistance of the baffle 6 can be adjusted by the thrust device to control the water pressure inside the valve to be tested, thereby testing the flow guiding effect of the valve under different water pressures. Compared with the prior art, this utility model is equipped with a baffle, and through the pressure device, the water inside the valve to be tested can have a certain pressure, which can stabilize the water pressure inside the valve to be tested, thereby detecting whether there is leakage in the valve under different water pressures. In addition, the movement of the movable plate 3 facilitates the installation and disassembly of the valve to be tested, making the structure simpler and easier to use.

[0028] like Figure 1 As shown, in a further preferred embodiment, the guiding device includes a guide groove 7 and a guide slider 8. The guide groove 7 is a T-shaped groove, and the guide slider 8 is a T-shaped slider. This structure prevents the guide slider 8 from detaching from the guide rail. The guide groove 7 is located on the top surface of the base 1, and the guide slider 8 is fixedly installed on the bottom surface of the movable plate 3. The guide slider 8 is located within the guide groove 7 and slides within it. The guide groove 7 and the guide slider 8 provide guidance for the movable plate 3, thereby controlling the left and right movement of the movable plate 3, facilitating the installation and removal of the valve to be tested.

[0029] like Figure 1As shown, in a further preferred embodiment, liquid flow meters are respectively installed on the two connecting pipes 4. Liquid flow meters are existing technology, and their specific structure and installation method will not be described in detail in this application. The liquid flow meters can detect the liquid flow rate of the two connecting pipes 4. Therefore, after the liquid flow through the valve under test stabilizes, the change in the flow rate of the two liquid flow meters can be observed to determine whether there is a leak.

[0030] like Figure 1 As shown, in a further preferred embodiment, the water inlet device is a water pump 9, which is a hydraulic water pump. The hydraulic water pump has higher pressure, enabling it to pressurize the valve under test. The water pump 9 is controlled by an existing water pump controller. The outlet of the water pump 9 is connected to and interconnected with the corresponding connecting pipe 4. The water inlet pipe of the water pump 9 is fixedly connected to the inlet pipe, which is connected to a water source. When the water pump 9 is connected to a power source and turned on, it can pump water along the inlet pipe into the corresponding connecting pipe 4. This water inlet device has a simple structure and is easy to use.

[0031] like Figure 1 As shown, in a further preferred embodiment, sealing gaskets are fixedly installed on both the opposite surfaces of the mounting plate 2 and one side of the baffle 6. The sealing gaskets increase the sealing performance, thereby preventing water leakage.

[0032] like Figure 1 As shown, in a further preferred embodiment, the pressure device includes a housing 10, one side of which penetrates through and is fixedly connected to the other side of the housing 5. A screw 11 is provided inside the housing 10, one end of which penetrates through the housing 10 and is rotatably connected, specifically through a sealed bearing. A movable plate 12 is provided inside the housing 10, which contacts and slides against the inner wall of the housing 10, with a gap between the movable plate 12 and the inner wall of the housing 10. The screw 11 penetrates through the movable plate 12 and is threadedly engaged. A limiting plate 13 is provided inside the housing 10, which contacts and slides against the inner wall of the housing 10, with a gap between the limiting plate 13 and the inner wall of the housing 10. A spring 15 is provided between the limiting plate 13 and the movable plate 12. One side of the limiting plate 13 is fixedly connected to one end of a moving rod 14, which penetrates through the housing 10 and is clearance-fitted. The other end of the moving rod 14 is fixedly connected to a baffle. Rotating the screw 11 causes the movable plate 12 to move left and right. The left and right movement of the movable plate 12 can adjust the compression of the spring 15, thereby adjusting the thrust that the spring 15 exerts on the baffle 6 through the limiting plate 13 and the moving rod 14. This pressure device has a simple structure, and the pressure can be adjusted by rotating the screw 11, making it easy to use.

[0033] like Figure 1 As shown, in a further preferred embodiment, one end of the screw 11 is fixedly fitted with an anti-slip handle 16. The anti-slip handle 16 provides a point of leverage for the user, making it easy for the user to rotate the screw 11 and facilitating its use.

[0034] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0035] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A valve leakage test device, comprising a base (1), wherein two mounting plates (2) are provided on the top surface of the base (1), characterized in that, A movable plate (3) is provided on the top surface of the base (1). A guide device is provided on the bottom surface of the movable plate (3) and the top surface of the base (1). One mounting plate (2) is fixedly connected to one side of the movable plate (3), and another mounting plate (2) is fixedly connected to the base (1). Connecting pipes (4) are fixedly installed on the opposite sides of the mounting plate (2). The connecting pipes (4) pass through the mounting plate (2). The opposite side of the mounting plate (2) is provided with evenly distributed threaded blind holes. A water inlet device is fixedly installed on one side of the top surface of the base (1). The water inlet device is connected to and communicates with one of the connecting pipes (4). A one-way valve is provided on one of the connecting pipes (4). A box (5) is provided on the top surface of the movable plate (3). Another connecting pipe (4) passes through one side of the box (5) and is fixedly connected. A baffle (6) is provided inside the box (5). A pressure device that applies pressure to the baffle (6) is provided inside the box (5). A drain pipe is fixedly installed on the bottom of the other side of the box (5).

2. The valve leakage testing device according to claim 1, characterized in that, The guiding device includes a guide groove (7) and a guide slider (8). The guide groove (7) is opened on the top surface of the base (1), and the guide slider (8) is fixedly installed on the bottom surface of the movable plate (3). The guide slider (8) is located in the guide groove (7) and slides in cooperation.

3. The valve leakage test device according to claim 1, characterized in that, Liquid flow meters are installed on the two connecting pipes (4) respectively.

4. The valve leakage test device according to claim 1, characterized in that, The water inlet device is a water pump (9). The outlet end of the water pump (9) is connected to and communicates with the corresponding connecting pipe (4). The water inlet pipe of the water pump (9) is fixedly connected to the water inlet pipe.

5. A valve leakage testing device according to any one of claims 1-4, characterized in that, Sealing gaskets are fixedly installed on the opposite side of the mounting plate (2) and one side of the baffle (6).

6. The valve leakage test device according to claim 1, characterized in that, The pressure device includes a box body (10), one side of which passes through the other side of the box body (5) and is fixedly connected. A screw (11) is provided inside the box body (10), one end of which passes through the box body (10) and is rotatably connected. A movable plate (12) is provided inside the box body (10), and the screw (11) passes through the movable plate (12) and is threadedly engaged. A limit plate (13) is provided inside the box body (10), and a spring (15) is provided between the limit plate (13) and the movable plate (12). One side of the limit plate (13) is fixedly connected to one end of a moving rod (14), and the moving rod (14) passes through the box body (10) and is clearance-fitted. The other end of the moving rod (14) is fixedly connected to a baffle.

7. A valve leakage testing device according to claim 6, characterized in that, One end of the screw (11) is fixedly equipped with an anti-slip handle (16).

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