Slide valve leakage detection device

Abstract

The utility model relates to the technical field of valve detection, in particular to a slide valve leakage detection device which comprises a base and a leakage detector body, a second threaded rod is installed in the base through a bearing, a supporting slide rod is fixedly installed in the base, a second movable block is installed in the base in a sliding mode, and the second movable block is fixedly installed in the base. And first sliding blocks are welded to the two sides of the second movable block correspondingly, the second threaded rod and the supporting sliding rod are sleeved with the two first sliding blocks correspondingly, and the bottom of the second movable block communicates with a high-pressure hose. The positions of the first sealing washer and the second sealing washer can be respectively driven to change by rotating the first knob and the second knob, and the sliding valves of different models can be extruded and sealed by changing the positions of the first sealing washer and the second sealing washer according to the positions of air inlets and air outlets of the sliding valves. Therefore, airtightness detection is carried out on the interior of the slide valve, and the use flexibility of the detection device is improved.

Description

Technical Field

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

[0002] A sliding valve is a valve that uses a valve core to slide on a sealing surface to change the position of the fluid inlet and outlet channels to control the flow direction of the fluid. It is widely used in hydraulic systems and vacuum systems to control the flow direction, flow rate and pressure of liquids or gases.

[0003] The air tightness of the sliding valve needs to be tested during the production process to avoid leakage of the sliding valve when it is put into use. Therefore, a sliding valve leakage detection device is needed.

[0004] An existing sliding valve leakage detection device cannot be adjusted according to the positions of the air inlet and air outlet of different types of sliding valves during use, and thus cannot be used for detection. For work that requires detection of sliding valves of different models, the device has low flexibility in use, resulting in limitations in the use of the device and causing work difficulties for detection personnel.

[0005] For this purpose, a slide valve leakage detection device is specially proposed. Utility Model Content

[0006] The purpose of the present invention is to provide a slide valve leakage detection device to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slide valve leakage detection device, comprising a base and a leak detector body, a second threaded rod is installed inside the base through a bearing, a support slide rod is fixedly installed inside the base, a second movable block is slidably installed inside the base, a first slider is welded on both sides of the second movable block, two first sliders are respectively sleeved on the outside of the second threaded rod and the support slide rod, a high-pressure hose is connected to the bottom of the second movable block, and one end of the high-pressure hose extends out of the inside of the base The top of the second movable block extends out of the base and is installed with a first pressure plate. The top of the first pressure plate is fixed with a first sealing gasket. The top of the base is fixed with a support frame. The top of the support frame is welded with a top plate. A slide is slidably installed on the outside of the support frame. The inside of the slide is installed with a first threaded rod through a rotating shaft. A movable groove is provided inside the slide. The inside of the movable groove is slidably installed with the first movable block. The bottom of the first movable block is welded with a second pressure plate. The top of the second pressure plate is fixed with a second sealing gasket. The inside of the first movable block is threadedly engaged with the outside of the first threaded rod.

[0007] Preferably, one end of the second threaded rod extends out of the interior of the base and is fixed with a second knob, and one end of the first threaded rod extends out of the interior of the slide and is fixed with a first knob.

[0008] Preferably, an electric telescopic rod is fixed to the top of the top plate by bolts, and an output end of the electric telescopic rod passes through and extends out of the interior of the top plate, and the output end of the electric telescopic rod is connected to the top of the slide plate by bolts.

[0009] Preferably, an air hole is provided inside the second movable block, and the air hole is communicated with the inside of the high-pressure hose, and the air hole passes through the inside of the first pressure-bearing plate and the first sealing gasket.

[0010] Preferably, a second clamping plate is fixed to each side of the top of the base by screws, and the height of the two second clamping plates is lower than the height of the first sealing gasket.

[0011] Preferably, a first clamping plate is fixed to each of two sides of the bottom of the slide plate by screws, and the height of the bottoms of the two first clamping plates is higher than the height of the bottom of the second sealing gasket.

[0012] Preferably, a sliding groove is provided on the inner wall of one side of the movable groove, and a second sliding block is welded on one side of the first movable block, and the second sliding block is slidably installed inside the sliding groove.

[0013] Preferably, the second sealing gasket and the second pressure plate are respectively solid.

[0014] Compared with the prior art, the present invention provides a slide valve leakage detection device with the following beneficial effects:

[0015] By rotating the first knob and the second knob, the first threaded rod and the second threaded rod can be driven to rotate respectively, and the rotation of the first threaded rod and the second threaded rod can drive the position of the first sealing gasket and the second sealing gasket to change. By changing the position of the first sealing gasket and the second sealing gasket, the air inlet and outlet of the sliding valve of different models can be squeezed and sealed according to the position of the air inlet and outlet, thereby performing air tightness detection on the inside of the sliding valve. The device can be used to detect sliding valves with different positions of the air inlet and outlet, and the operation is simple, which is convenient for operators to use and improves the flexibility of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a side structural diagram of the present utility model;

[0018] Figure 3This is a schematic diagram of the internal top view of the base of the utility model;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. base; 2. high-pressure hose; 3. leak detector body; 4. first sealing gasket; 5. support frame; 6. top plate; 7. electric telescopic rod; 8. first movable block; 9. first threaded rod; 10. first knob; 11. first pressure plate; 12. second knob; 13. second threaded rod; 14. second movable block; 15. first slider; 16. first clamping plate; 17. second clamping plate; 18. supporting slide rod; 19. slide plate; 20. air hole; 21. second slider; 22. slide groove; 23. movable groove; 24. second sealing gasket; 25. second pressure plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Embodiment 1: A second threaded rod 13 is installed inside the base 1 through a bearing, a support slide rod 18 is fixedly installed inside the base 1, a second movable block 14 is slidably installed inside the base 1, a first slider 15 is welded on both sides of the second movable block 14, and the two first sliders 15 are respectively sleeved on the outside of the second threaded rod 13 and the support slide rod 18, the bottom of the second movable block 14 is connected to a high-pressure hose 2, one end of the high-pressure hose 2 extends out of the base 1 and is connected to the inside of the leak detector body 3, the top of the second movable block 14 extends out of the base 1 and is installed with a first pressure plate 11, the top of the first pressure plate 11 is fixed with a first sealing gasket 4, the top of the base 1 A support frame 5 is fixed, a top plate 6 is welded to the top of the support frame 5, a slide plate 19 is slidably installed on the outside of the support frame 5, a first threaded rod 9 is installed inside the slide plate 19 through a rotating shaft, a movable groove 23 is opened inside the slide plate 19, a first movable block 8 is slidably installed inside the movable groove 23, a second pressure plate 25 is welded to the bottom of the first movable block 8, a second sealing gasket 24 is fixed to the top of the second pressure plate 25, the inside of the first movable block 8 is sleeved on the outside of the first threaded rod 9 through threaded engagement, one end of the second threaded rod 13 extends out of the inside of the base 1 and is fixed with the second knob 12, and one end of the first threaded rod 9 extends out of the inside of the slide plate 19 and is fixed with the first knob 10.

[0023] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, by rotating the first knob 10 and the second knob 12, the first threaded rod 9 and the second threaded rod 13 can be driven to rotate respectively. The rotation of the first threaded rod 9 can drive the first movable block 8 to slide along the installation direction of the first threaded rod 9, and the rotation of the second threaded rod 13 can drive the second movable block 14 to slide along the installation direction of the second threaded rod 13. When the first movable block 8 slides, the positions of the second pressure plate 25 and the second sealing gasket 24 installed at the bottom of the first movable block 8 will also change accordingly. When the second movable block 14 slides, the positions of the first pressure plate 11 and the first sealing gasket 4 will also change accordingly. Therefore, by changing the positions of the first sealing gasket 4 and the second sealing gasket 24, the air inlet and outlet of the sliding valve of different models can be squeezed and sealed according to the positions of the air inlet and outlet of the sliding valve, so as to detect the air tightness inside the sliding valve. The gas can be injected into the interior of the second movable block 14 through the high-pressure hose 2 through the leak detector body 3 and then filled into the interior of the sliding valve. After a period of time, the change in the pressure difference of the sliding valve is detected by the leak detector body 3 to determine the leakage of the air seal inside the sliding valve. The device can be used to detect sliding valves with different air inlet and outlet positions, and is simple to operate, convenient for operators to use, and improves the flexibility of the detection device.

[0024] Example 2: An electric telescopic rod 7 is fixed to the top of the top plate 6 by bolts, and the output end of the electric telescopic rod 7 passes through and extends out of the interior of the top plate 6, and the output end of the electric telescopic rod 7 is connected to the top of the slide plate 19 by bolts. An air hole 20 is opened inside the second movable block 14, and the air hole 20 is connected to the interior of the high-pressure hose 2, and the air hole 20 passes through the interior of the first pressure-bearing plate 11 and the first sealing gasket 4. A second plywood 17 is fixed to both sides of the top of the base 1 by screws, and the height of the two second plywood 17 is lower than the height of the first sealing gasket 4. A first plywood 16 is fixed to both sides of the bottom of the slide plate 19 by screws, and the height position of the bottom of the two first plywood 16 is higher than the height position of the bottom of the second sealing gasket 24. A slide groove 22 is opened on the inner wall of one side of the movable groove 23, and a second slider 21 is welded to one side of the first movable block 8. The second slider 21 is slidably installed in the interior of the slide groove 22. The second sealing gasket 24 and the second pressure-bearing plate 25 are respectively solid.

[0025] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the extension of the output end of the electric telescopic rod 7 can drive the slide plate 19 to slide up and down along the installation direction of the support frame 5, thereby driving the second sealing gasket 24 to move downward to seal the air outlet of the slide valve. Since the second movable block 14 is provided with an air hole 20, gas can be filled into the interior of the slide valve through the air hole 20, and after the slide valve is squeezed between the first sealing gasket 4 and the second sealing gasket 24, the air inlet and outlet of the slide valve can be sealed through the first sealing gasket 4 and the second sealing gasket 24 to prevent gas leakage. At the same time, since the second splint 17 is fixed on the top of the base 1, the slide valve is A first clamping plate 16 is fixed to the bottom of the plate 19. Therefore, when the first sealing gasket 4 and the second sealing gasket 24 are squeezed, their heights will change, so that the remaining area of ​​the sliding valve will contact the second clamping plate 17 and the first clamping plate 16. The support of the first clamping plate 16 and the second clamping plate 17 can ensure the overall levelness and stability of the sliding valve when it is squeezed, thereby improving the accuracy of the detection data. When the first movable block 8 slides inside the movable groove 23, the second slider 21 welded on one side of the first movable block 8 will also slide inside the slide groove 22, thereby ensuring the sliding stability of the first movable block 8.

[0026] Working principle: When testing the slide valve, adjust the positions of the first movable block 8 and the second movable block 14 according to the positions of the air inlet and outlet on both sides of the slide valve. By rotating the first knob 10 and the second knob 12, the first threaded rod 9 and the second threaded rod 13 can be driven to rotate respectively. The rotation of the first threaded rod 9 can drive the first movable block 8 to slide along the installation direction of the first threaded rod 9, and the rotation of the second threaded rod 13 can drive the second movable block 14 to slide along the installation direction of the second threaded rod 13. After adjusting the position, the slide valve is closed. The air inlet is placed above the first sealing gasket 4. The extension of the output end of the electric telescopic rod 7 is controlled to drive the slide 19 to move downward, so that the second sealing gasket 24 seals the position of the air outlet of the sliding valve. Then, the gas is transported into the interior of the high-pressure hose 2 through the leak detector body 3. The gas is transmitted to the interior of the air inlet 20 by the high-pressure hose 2 and filled into the interior of the sliding valve through the air hole 20. The gas injection is stopped after the gas inside the sliding valve reaches the rated value. The pressure difference at one end of the gas inside the sliding valve is detected by the leak detector body 3 to determine whether there is a leak inside the sliding valve.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A slide valve leakage detection device, comprising a base (1) and a leak detector body (3), characterized in that: A second threaded rod (13) is installed inside the base (1) through a bearing, a support slide rod (18) is fixedly installed inside the base (1), a second movable block (14) is slidably installed inside the base (1), a first slider (15) is welded on both sides of the second movable block (14), and the two first sliders (15) are respectively sleeved on the outside of the second threaded rod (13) and the support slide rod (18), the bottom of the second movable block (14) is connected to a high-pressure hose (2), one end of the high-pressure hose (2) extends out of the base (1) and is connected to the inside of the leak detector body (3), the top of the second movable block (14) extends out of the base (1) and is installed with a first pressure plate (11), the second movable block (14) is connected to the outside of the second threaded rod (13) and the support slide rod (18), the bottom of the second movable block (14) is connected to the high-pressure hose (2), one end of the high-pressure hose (2) extends out of the base (1) and is connected to the inside of the leak detector body (3), the top of the second movable block (14) extends out of the base (1) and is installed with a first pressure plate (11), the second movable block (14) is connected to the outside of the second threaded rod (13) and the support slide rod (18), the second movable block (14) is connected to the outside of the second threaded rod (13) and the support slide rod (18), the second movable block (14) is connected to the bottom ... A first sealing gasket (4) is fixed on the top of a pressure plate (11), a support frame (5) is fixed on the top of the base (1), a top plate (6) is welded to the top of the support frame (5), a slide plate (19) is slidably mounted on the outside of the support frame (5), a first threaded rod (9) is mounted inside the slide plate (19) via a rotating shaft, a movable groove (23) is provided inside the slide plate (19), a first movable block (8) is slidably mounted inside the movable groove (23), a second pressure plate (25) is welded to the bottom of the first movable block (8), a second sealing gasket (24) is fixed to the top of the second pressure plate (25), and the inside of the first movable block (8) is sleeved on the outside of the first threaded rod (9) via a threaded engagement.

2. The slide valve leakage detection device according to claim 1, characterized in that: One end of the second threaded rod (13) extends out of the interior of the base (1) and is fixed with a second knob (12), and one end of the first threaded rod (9) extends out of the interior of the slide (19) and is fixed with a first knob (10).

3. The slide valve leakage detection device according to claim 1, characterized in that: An electric telescopic rod (7) is fixed to the top of the top plate (6) by bolts, and the output end of the electric telescopic rod (7) passes through and extends out of the interior of the top plate (6), and the output end of the electric telescopic rod (7) is connected to the top of the slide plate (19) by bolts.

4. The slide valve leakage detection device according to claim 1, characterized in that: An air hole (20) is provided inside the second movable block (14), and the air hole (20) is connected to the inside of the high-pressure hose (2). The air hole (20) passes through the inside of the first pressure-bearing plate (11) and the first sealing gasket (4).

5. The slide valve leakage detection device according to claim 1, characterized in that: A second clamping plate (17) is fixed to each of two sides of the top of the base (1) by screws, and the height of the two second clamping plates (17) is lower than the height of the first sealing gasket (4).

6. The slide valve leakage detection device according to claim 1, characterized in that: A first clamping plate (16) is fixed to each of the two sides of the bottom of the slide plate (19) by screws, and the bottoms of the two first clamping plates (16) are located at a height higher than the bottom of the second sealing gasket (24).

7. The slide valve leakage detection device according to claim 1, characterized in that: A sliding groove (22) is provided on the inner wall of one side of the movable groove (23), and a second sliding block (21) is welded to one side of the first movable block (8), and the second sliding block (21) is slidably mounted inside the sliding groove (22).

8. The slide valve leakage detection device according to claim 1, characterized in that: The second sealing gasket (24) and the second pressure-bearing plate (25) are respectively solid.

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