Portable gate valve airtightness detection device

Abstract

The utility model discloses a portable gate valve airtightness detection device, which is characterized in that pull rods are respectively hinged to the lower end of a pull disc, the pull rods are circumferentially distributed on the pull disc, the lower ends of the pull rods are provided with pull hooks, the pull disc is provided with a threaded through hole, a screw rod is rotatably meshed in the threaded through hole of the pull disc, and the pull disc is provided with a screw rod. The supporting disc is rotationally installed at the lower end of the screw rod, a supporting column is arranged at the lower end of the supporting disc, the first airtight disc is fixedly installed at the lower end of the supporting column, the second airtight disc is placed on a pull hook of the pull rod, and vent holes are formed in the first airtight disc and the second airtight disc respectively. The outer end of the first airtight disc and the outer end of the second airtight disc are respectively and fixedly provided with a barometer, the outer end of the second airtight disc is fixedly provided with a one-way valve communicated with the vent hole, and the barometers are communicated with the vent hole. The air tightness testing device has the advantages that air tightness testing can be carried out, the valve does not need to be carried, detection can be carried out, and the air tightness testing device is very convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve production, in particular to the technical field of an airtightness detection device for a portable gate valve. Background Art

[0002] Gate valves are devices used in fluid systems to control the direction, pressure, and flow of fluids and to make the medium in pipelines and equipment flow or stop. After the gate valves are produced, they need to undergo a series of tests, and only qualified products can be sold.

[0003] The sealing test of valves is the most important and critical test in valve testing. When testing valves, existing valve testing equipment needs to first move the valve and place it on the testing table, then connect the two ends of the valve to the testing pipe with bolts and nuts, and use the testing pipe to pass high-pressure gas into the valve to test the sealing of the valve and whether the valve is leaking.

[0004] When in use, the valve usually needs to be moved and placed on a testing table. Since some valves are large in size and difficult to carry, when using a forklift to move the valve and place it on the testing table, if the operation is improper, it is easy to cause damage to the valve and the valve testing equipment, thereby affecting the service life. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a portable gate valve air tightness detection device, which can realize rapid clamping and sealing of the valve plate without carrying the valve, and is also very convenient to loosen, greatly improving the working efficiency of gate valve air tightness detection.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A portable airtight detection device for a gate valve comprises a pull plate, a screw, a support plate, a first airtight plate and a second airtight plate, the lower ends of the pull plates are respectively hingedly mounted with pull rods, the pull rods are circumferentially distributed on the pull plates, the lower ends of the pull rods are provided with pull hooks, the pull plates are provided with threaded through holes, the screw is rotatably engaged and mounted in the threaded through holes of the pull plates, the support plate is rotatably mounted at the lower end of the screw, a support column is provided at the lower end of the support plate, the first airtight plate is fixedly mounted at the lower end of the support column, the second airtight plate is placed on the pull hook of the pull rod, vents are respectively provided on the first airtight plate and the second airtight plate, pressure gauges are respectively fixedly mounted on the outer ends of the first airtight plate and the second airtight plate, a one-way valve connected to the vent is fixedly mounted on the outer end of the second airtight plate, the pressure gauge is connected to the vent, and a nut is fixedly mounted on the upper end of the screw.

[0008] Preferably, a groove is provided on the second airtight disk.

[0009] Preferably, a through hole is provided on the nut, and a force rod is movably installed in the through hole.

[0010] Preferably, steps are respectively provided on the inner sides of the first airtight disk and the second airtight disk, and rubber pads are provided on the steps.

[0011] The beneficial effects that can be achieved by the utility model using the above technical solution are:

[0012] 1. Pull rods are hingedly installed in a circular distribution at the lower end of the pull plate, and a hook is arranged at the lower end of the pull rod. The screw is rotatably engaged and installed in the threaded through hole of the pull plate. The first airtight disk is movably installed at the lower end of the screw, and the second airtight disk is placed on the hook of the pull rod. When starting work, the first airtight disk is placed on the flange surface at one end of the gate valve, the pull rod passes over the gate valve, and the second airtight disk is hung on the hook of the pull rod. The screw is rotated so that the first airtight disk and the second airtight disk tightly clamp the flange surfaces at both ends of the gate valve, thereby realizing rapid clamping and rapid sealing of the valve plate.

[0013] 2. By connecting and installing a pressure gauge on the first airtight disk and the second airtight disk respectively, a one-way valve connected to the vent hole is installed on the outer end of the second airtight disk. By injecting compressed air into the one-way valve, an airtight test can be carried out. There is no need to move the valve to carry out the test, which is very convenient.

[0014] 3. Steps are provided on the inner sides of the first airtight disk and the second airtight disk respectively, and rubber pads are provided on the steps. The steps are suitable for gate valves of various nominal diameters, thereby increasing the adaptability of the device and enhancing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a right-side axonometric structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the airtight disk in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the first airtight disk and the support disk in the utility model.

[0019] 1. Pull plate; 2. Pull rod; 3. Pull hook; 4. Threaded through hole; 5. Screw; 6. Support plate; 7. Support column; 8. First airtight plate; 9. Second airtight plate; 10. Vent hole; 11. Pressure gauge; 12. One-way valve; 13. Nut; 14. Groove; 15. Through hole; 16. Force rod; 17. Step. DETAILED DESCRIPTION

[0020] Example reference Figure 1-4 As shown, the utility model provides a portable airtightness detection device for a gate valve, comprising a pull plate 1, a screw 5, a support plate 6, a first airtight plate 8 and a second airtight plate 9, wherein the pull plate 1 is hingedly mounted with a pull rod 2 at the lower end thereof, the pull rod 2 being distributed circumferentially on the pull plate 1, a pull hook 3 being arranged at the lower end of the pull rod 2, a threaded through hole 4 being opened on the pull plate 1, the screw 5 being rotatably engaged and mounted in the threaded through hole 4 of the pull plate 1, the support plate 6 being rotatably mounted at the lower end of the screw 5, the support plate 6 is provided with a support column 7 at the lower end, the first airtight disk 8 is fixedly mounted at the lower end of the support column 7, and the second airtight disk 9 is placed on the hook 3 of the pull rod 2. When starting work, the first airtight disk 8 is placed on the flange surface at one end of the gate valve, the pull rod 2 passes over the gate valve, the second airtight disk 9 is hung into the hook 3 of the pull rod 2, and the screw 5 is rotated so that the first airtight disk 8 and the second airtight disk 9 tightly clamp the flange surfaces at both ends of the gate valve, thereby realizing rapid clamping and rapid sealing of the valve plate. The second airtight disk 9 is provided with a A groove 14 is provided, and the groove 14 makes the hook 3 more stable on the second airtight disk 9. Steps 17 are respectively provided on the inner sides of the first airtight disk 8 and the second airtight disk 9. A rubber pad is provided on the step 17. The step 17 is suitable for gate valves of various nominal diameters, which increases the adaptability of the device and enhances the sealing effect. Vents 10 are respectively provided on the first airtight disk 8 and the second airtight disk 9. Pressure gauges 11 are fixedly installed on the outer ends of the first airtight disk 8 and the second airtight disk 9, respectively. The pressure gauges 11 are connected to the vents 10. A one-way valve 12 connected to the vent 10 is fixedly installed on the outer end of the second airtight disk 9. By injecting compressed air into the one-way valve 12, an airtight test can be carried out. A nut 13 is fixedly provided on the upper end of the screw 5, and a through hole 15 is provided on the nut 13. A force rod 16 is movably installed in the through hole 15, so that rapid clamping and sealing of the valve plate are achieved, and easy loosening is convenient, which greatly improves the working efficiency of airtight detection.

Claims

1. A portable air tightness detection device for a gate valve, characterized in that: The invention comprises a pull plate (1), a screw rod (5), a support plate (6), a first airtight plate (8) and a second airtight plate (9), wherein the pull plate (1) is hingedly mounted with a pull rod (2) at the lower end, the pull rod (2) being distributed in a circumference on the pull plate (1), a pull hook (3) being arranged at the lower end of the pull rod (2), a threaded through hole (4) being provided on the pull plate (1), the screw rod (5) being rotatably engaged and mounted in the threaded through hole (4) of the pull plate (1), the support plate (6) being rotatably mounted at the lower end of the screw rod (5), the support plate (6) being provided with a support column (7), the first airtight plate (8) and the second airtight plate (9), wherein the first airtight plate (1) is hingedly mounted with a pull rod (2) at the lower end, the pull rod (2) being distributed in a circumference on the pull plate (1), the lower end of the pull rod (2) being provided with a pull hook (3), the pull plate (1) being provided with a threaded through hole (4), the screw rod (5) being rotatably engaged and mounted in the threaded through hole (4) of the pull plate (1), the support plate (6) being rotatably mounted at the lower end of the screw rod (5), the lower end of the support plate (6) being provided with a support column (7), the first airtight plate (8) and the second airtight plate (9), wherein the first airtight plate (1) is hingedly mounted with a pull rod (2) at the lower end, the pull rod (2) being distributed in a circumference on the pull plate (1), the lower end of the pull rod (2) being provided with a pull hook (3), the pull plate (1) being provided with a threaded through hole (4) The disk (8) is fixedly mounted on the lower end of the support column (7); the second airtight disk (9) is placed on the hook (3) of the pull rod (2); the first airtight disk (8) and the second airtight disk (9) are respectively provided with ventilation holes (10); the outer ends of the first airtight disk (8) and the second airtight disk (9) are respectively fixedly mounted with pressure gauges (11), the pressure gauges (11) are connected to the ventilation holes (10); the outer end of the second airtight disk (9) is fixedly mounted with a one-way valve (12) connected to the ventilation holes (10); and the upper end of the screw rod (5) is fixedly provided with a nut (13).

2. A portable gate valve air tightness detection device according to claim 1, characterized in that: The second airtight disk (9) is provided with a groove (14).

3. A portable gate valve air tightness detection device according to claim 1 or 2, characterized in that: The nut (13) is provided with a through hole (15), and a force rod (16) is movably mounted in the through hole (15).

4. A portable gate valve air tightness detection device according to claim 1 or 2, characterized in that: Steps (17) are respectively provided on the inner sides of the first airtight disk (8) and the second airtight disk (9), and rubber pads are provided on the steps (17).

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