Detection equipment for valve sealing

Abstract

The utility model provides detection equipment for valve sealing, which comprises a clamping plate for clamping two ends of a valve main body, a vent pipe penetrating through the center of the clamping plate, a sealing rubber mat sleeved at one end of the vent pipe, and a pressure pump and a pressure gauge which are respectively connected with the other end of the vent pipe through a three-way pipe, the sealing rubber mat is arranged between the clamping plates and connected to the valve body in a sealed mode. A clamping mechanism is arranged between the clamping plates and used for clamping the valve body. The device has the advantages of being reasonable in structural design, convenient to install and fix, convenient to operate, time-saving and labor-saving, and capable of improving the detection efficiency.

Description

Technical Field

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

[0002] Valves are mechanical devices that control the flow rate, flow direction, pressure, temperature, etc. of flowing fluid media. Valves are basic components in pipeline systems and are also indispensable in our daily lives. Valves can be operated manually or by handwheels, handles, or pedals. They can also be controlled to change the pressure, temperature, and flow rate of the fluid medium. Valves need to be tested for sealing after production. The sealing test of valves often uses the airtightness test method. The value of valve airtightness testing is to ensure that the valve can be effectively sealed during operation, thereby ensuring the safety and efficiency of industrial facilities.

[0003] When using traditional valve sealing detection equipment, if the valve is large, it is difficult to lift the valve onto the testing machine for sealing detection. When the valve is placed directly on the ground, it is difficult to clamp the seals at both ends of the valve, which makes sealing both ends of the valve time-consuming, reduces the efficiency of valve sealing detection, and leads to the problem of inconvenient valve air tightness detection. Utility Model Content

[0004] The utility model aims to provide a detection device for valve sealing which has reasonable structural design, is easy to install and fix, is convenient to operate, saves time and effort, and improves detection efficiency.

[0005] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0006] A valve sealing detection device, comprising a clamping plate for clamping both ends of a valve body, a venting tube passing through the center of the clamping plate, a sealing rubber pad sleeved at one end of the venting tube, and a pressure pump and a pressure gauge respectively connected to the other end of the venting tube through a tee pipe, wherein the sealing rubber pad is arranged between the clamping plates and is in close contact with the valve body;

[0007] A clamping mechanism is provided between the clamping plates for clamping the valve body.

[0008] Furthermore, the clamping mechanism includes a double-headed hydraulic cylinder and telescopic rods at both ends thereof, the end of the telescopic rod is provided with a conical clamping portion, the conical clamping portion is connected and fixed in a clamping groove on the lower side of the clamping plate, and the end of the conical clamping portion extending out of the clamping groove is provided with a baffle, which abuts against the outer surface of the clamping plate.

[0009] Furthermore, the lower side of the double-head hydraulic cylinder is connected to a fixed support base plate.

[0010] Furthermore, it also includes a limiting member, which is arranged parallel to the double-head hydraulic cylinder and the telescopic rod.

[0011] Furthermore, the limiting member is a pair of limiting sleeves connected and fixed to the lower side of one of the clamping plates and a pair of limiting rods connected and fixed to the lower side of the other clamping plate, and the limiting sleeves and limiting rods are plugged in cooperation.

[0012] Furthermore, the limiting sleeve or the limiting rod is arranged on both sides of the clamping groove.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model discloses a detection device for valve sealing, which has reasonable structural design, is easy to install and fix, is convenient to operate, saves time and effort, and improves detection efficiency.

[0015] Specifically, two symmetrically arranged clamping plates and one end of the air tube passing through the center of the clamping plate are sleeved with a sealing rubber gasket, and the sealing rubber gasket contacts and seals with the two ends of the valve body respectively, so that the sealing rubber gasket can seal the end of the valve body; and a pressure pump and a pressure gauge are installed at the other end of the air tube through a three-way pipe, the pressure pump is used to increase the pressure inside the air tube, and the pressure gauge is used to detect the pressure inside the air tube, thereby achieving the purpose of sealing detection of the valve body.

[0016] The camming mechanism is composed of a double-headed hydraulic cylinder, a telescopic rod, a conical clamping part, a baffle, a clamping groove and a limit piece, a conical clamping part welded at the end of the telescopic rod, and a baffle welded at the end of the conical clamping part, and the baffle is located on the outside of the clamping plate, and the conical clamping part is installed in the clamping groove opened at the lower end of the clamping plate, so that the conical clamping part, the baffle and the clamping groove cooperate to limit, so that the telescopic rod and the clamping plate are fixed, so that when the double-headed hydraulic cylinder brings the telescopic rod to extend and retract, the two clamping plates clamp the two ends of the valve body, and the sealing gasket blocks the two ends of the valve body, and the telescopic rod, the limit sleeve and the limit plug rod are parallel, so that the limit sleeve and the limit plug rod cooperate to limit the movement of the two clamping plates, thereby increasing the stability of the two clamping plates when clamping the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the structural decomposition of the utility model.

[0019] Figure numerals: 1. valve body; 2. clamping plate; 3. air vent; 4. sealing rubber pad; 5. pressure pump; 6. pressure gauge; 7. double-head hydraulic cylinder; 8. telescopic rod; 9. conical clamping part; 10. baffle; 11. clamping groove; 12. supporting bottom plate; 13. limiting sleeve; 14. limiting plug rod. DETAILED DESCRIPTION

[0020] The embodiments of the present utility model are described in further detail below in conjunction with the accompanying drawings.

[0021] like Figure 1 , 2 As shown, a detection device for valve sealing includes a clamping plate 2 for clamping both ends of a valve body 1, an air vent 3 passing through the center of the clamping plate 2, a sealing rubber pad 4 sleeved on one end of the air vent 3, and a pressure pump 5 and a pressure gauge 6 respectively connected to the other end of the air vent 3 through a three-way pipe, wherein the sealing rubber pad 4 is arranged between the clamping plates 2 and is closely connected to the valve body 1; a clamping mechanism is arranged between the clamping plates 2 to clamp the valve body 1. The pressure pump 5 is used to increase the pressure inside the air vent 3, and the pressure gauge 6 is used to detect the pressure inside the air vent 3, thereby achieving the purpose of sealing detection of the valve body 1. Preferably, the sealing rubber pad 4 is a half-sphere structure, and the inner diameter of the hole arranged in the middle of the sealing rubber pad 4 is 2 mm smaller than the outer diameter of the air vent 3, so that the sealing rubber pad 4 is tightly sleeved on the outside of the air vent 3.

[0022] The clamping mechanism includes a double-headed hydraulic cylinder 7 and telescopic rods 8 at both ends thereof, the end of the telescopic rod 8 is provided with a conical clamping portion 9, the conical clamping portion 9 is connected and fixed in a clamping groove 11 at the lower side of the clamping plate 2, and the end of the conical clamping portion 9 extending out of the clamping groove 11 is provided with a baffle 10, and the baffle 10 abuts against the outer surface of the clamping plate 2. The clamping groove 11 is rectangular at the lower part and conical at the upper part, and the conical clamping portion 9 is a conical columnar structure and is adapted to the upper part of the clamping groove 11.

[0023] The lower side of the double-head hydraulic cylinder 7 is connected to a fixed support base plate 12 .

[0024] The device also includes a limiter, which is arranged in parallel with the double-head hydraulic cylinder 7 and the telescopic rod 8. The limiter is a pair of limit sleeves 13 connected and fixed to the lower side of one clamping plate 2 and a pair of limit rods 14 connected and fixed to the lower side of the other clamping plate 2. The limit sleeves 13 and the limit rods 14 are plugged in cooperation.

[0025] The limiting sleeve 13 or the limiting rod 14 is arranged on both sides of the clamping groove 11 .

[0026] Through the telescopic rods 8 at both ends of the double-headed hydraulic cylinder 7, the clamping plate 2 can clamp the two ends of the valve body 1 to ensure that the sealing gasket 4 seals the two ends of the valve body 1; and the paired limit rods 14 are movably installed in the limit sleeve 13, so that the limit rods 14 and the limit sleeve 13 are further limited when cooperating with the clamping plate 2 to further increase the stability of the clamping plate 2 when clamping the valve body 1.

[0027] The working principle of the utility model is as follows: when in use, the sealing rubber pad 4 is sleeved on the outside of the vent pipe 3, and the two clamping plates 2 are placed at the two ends of the valve body 1, and the limit plug rod 14 is movably installed in the inside of the limit sleeve 13, at this time, the sealing rubber pad 4 is in contact with the valve body 1; then, the telescopic rod 8 is inserted from the lower part of the clamping groove 11, when the double-headed hydraulic cylinder 7 shrinks with the telescopic rod 8, the conical clamping part 9 welded at the end of the telescopic rod 8 is installed in the clamping groove 11, and the baffle 10 is located on the outer surface of the clamping plate 2, so that the two clamping plates 2 are clamped at the two ends of the valve body 1, and at the same time, the two ends of the valve body 1 are sealed by the sealing rubber pad 4; when the valve body 1 is closed, one of the pressure pumps 5 is powered on, and at this time, the pressure pump 5 pressurizes one end of the valve body 1 through the vent pipe 3, and the pressure gauge 6 detects the pressure in the vent pipe 3, and reads the change in the value of the pressure gauge 6 after a certain period of rest.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A valve sealing detection device, characterized in that: It includes clamping plates for clamping both ends of the valve body, a vent pipe passing through the center of the clamping plates, a sealing rubber pad sleeved at one end of the vent pipe, and a pressure pump and a pressure gauge respectively connected to the other end of the vent pipe through a three-way pipe, wherein the sealing rubber pad is arranged between the clamping plates and is closely connected to the valve body; A clamping mechanism is provided between the clamping plates for clamping the valve body.

2. A valve sealing detection device according to claim 1, characterized in that: The clamping mechanism includes a double-headed hydraulic cylinder and telescopic rods at both ends thereof, the end of the telescopic rod is provided with a conical clamping portion, the conical clamping portion is connected and fixed in a clamping groove on the lower side of the clamping plate, and the end of the conical clamping portion extending out of the clamping groove is provided with a baffle, which abuts against the outer surface of the clamping plate.

3. A valve sealing detection device according to claim 2, characterized in that: The lower side of the double-head hydraulic cylinder is connected to a fixed supporting base plate.

4. A valve sealing detection device according to claim 1 or 2, characterized in that: It also includes a limiting member, which is arranged in parallel with the double-head hydraulic cylinder and the telescopic rod.

5. A valve sealing detection device according to claim 4, characterized in that: The limiting components are a pair of limiting sleeves connected and fixed to the lower side of one clamping plate and a pair of limiting plug rods connected and fixed to the lower side of the other clamping plate, and the limiting sleeves and the limiting plug rods are plugged in cooperation.

6. A valve sealing detection device according to claim 5, characterized in that: The limiting sleeve or the limiting inserting rod is arranged on both sides of the clamping groove.

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