CN205639959U - Flange joint connects convenient to quick dismantlement - Google Patents

Abstract

The utility model relates to the field of flange sealing structures, in particular to a flange connection joint which is convenient for quick disassembly. A flange connection joint that is easy to quickly disassemble is characterized in that it is mainly composed of a pair of metal hoops, the metal hoops are semi-circular, and a groove with a rectangular cross-section is opened on the inner side, and the pair of metal hoops The clamps cooperate with each other to clamp the edge of the flange; the outer sides of both ends of the metal clamps are provided with connecting plates, and the connecting plates are provided with bolt holes, and a pair of metal clamps are fixedly connected by connecting plates and connecting bolts. The flange connection joint can be used in medium and low temperature, medium and low pressure, vibration and other working conditions, and maintains good sealing performance for a long time, effectively prevents flange leakage and facilitates quick disassembly.

Description

A flange connection joint that is convenient for quick disassembly

technical field

The utility model relates to the field of flange sealing structures, in particular to a flange connection joint which is convenient for quick disassembly.

Background technique

The flange sealing structure is widely used in petrochemical industry because of its easy disassembly and assembly. Due to the complexity of the working environment, the flange joints are prone to leakage. After the leakage occurs, the traditional flange connection system needs to unscrew all the pre-tightening bolts to replace the gasket, and it is difficult to unscrew the pre-tightening bolts due to the complicated working environment. At this time, in some medium and low temperature, medium and low pressure, vibration and other occasions, it is necessary to have a flange connection joint that is convenient for quick disassembly and installation.

Utility model content

In view of the above technical problems, the purpose of this utility model is to provide a flange connection joint that is easy to disassemble quickly. Prevent flange leakage and facilitate quick disassembly.

For realizing above-mentioned purpose, the technical scheme that the utility model takes is:

A flange connection joint that is easy to quickly disassemble is characterized in that it is mainly composed of a pair of metal hoops, the metal hoops are semi-circular, and a groove with a rectangular cross-section is opened on the inner side, and the pair of metal hoops The clamps cooperate with each other to clamp the edge of the flange; the outer sides of both ends of the metal clamps are provided with connecting plates, and the connecting plates are provided with bolt holes, and a pair of metal clamps are fixedly connected by connecting plates and connecting bolts.

The flange includes an upper flange, a lower flange and a sealing gasket, the upper surface of the upper flange is a slope inclined at a certain angle from the inside to the outside, and the lower surface of the lower flange is also a A slope that slopes at an angle from the inside to the outside.

The beneficial effects obtained by the utility model are as follows: 1. The flange sealing structure of the utility model can be applied to medium and low temperature, medium and low pressure, vibration and other working conditions, and can maintain good sealing performance for a long time, effectively preventing flange leakage . 2. The pre-tightening force provided by the utility model is the metal clamp instead of the traditional pre-tightening bolts. Compared with the traditional flange connection system, the pre-tightening force received by the sealing gasket in the utility model is more uniform, so that Leakage failures caused by uneven preload are avoided. 3. Compared with the traditional flange connection system, the flange connection joint in the present invention is more conducive to quick disassembly.

Description of drawings

Figure 1 is a schematic diagram of the overall sectional structure of the utility model (front view).

Fig. 2 is a schematic top view of the utility model.

FIG. 3 is a partially enlarged schematic diagram of part A in FIG. 1 .

In the figure: 1—connecting plate, 2—metal clamp, 3—upper flange, 4—sealing gasket, 5—lower flange, 6—connecting bolt.

detailed description

In order to better understand the utility model, the technical solution of the utility model will be further described below in conjunction with the embodiments and accompanying drawings (as shown in Figures 1-3).

A flange connection joint that is easy to disassemble quickly, which is mainly composed of a pair of metal clamps 2, the metal clamps 2 are semi-circular, and the inner side is provided with a groove with a rectangular cross section (that is, the cross section of the metal clamp 2 is "[" type), the pair of metal clamps 2 cooperate with each other to clamp the edge of the flange (the flange is composed of the upper flange 3, the lower flange 5 and the sealing gasket 4) (that is, the flange The edge of the flange is completely wrapped, and the upper flange 3 and the lower flange 5 are pressed); the outer sides of the two ends of the metal clamp 2 are provided with a connecting plate 1, and a bolt hole is opened on the connecting plate 1. A pair of The metal clips 2 are fixedly connected by connecting plates 1 and connecting bolts 6 .

The flange includes an upper flange 3, a lower flange 5 and a sealing gasket 4. The upper surface of the upper flange 3 is an inclined plane inclined at a certain angle from the inside to the outside. The lower flange 5 The lower surface is also a slope inclined at a certain angle from inside to outside. That is, the outer sides of the flanges of the upper flange 3 and the lower flange 5 are sloped.

After the metal clamp 2 is clamped, the inner side of the metal clamp 2 contacts the slopes on the outer side of the upper flange 3 and the lower flange 5 and squeezes the upper flange 3 and the lower flange 5 to form a flange connection system Provide sufficient preload.

The above descriptions are only application examples of the utility model, and of course the scope of rights of the utility model cannot be limited with this. Therefore, equivalent changes made according to the patent scope of the utility model still belong to the protection scope of the utility model.

Claims (2)

1. A flange connection joint that is easy to disassemble quickly, characterized in that it is mainly composed of a pair of metal clamps (2), the metal clamps (2) are semi-circular, and the inner side is provided with a rectangular cross-section groove, the pair of metal clamps (2) cooperate with each other to clamp the edge of the flange; the outer sides of both ends of the metal clamps (2) are provided with connecting plates (1), and the connecting plates (1) are provided with Bolt holes are provided, and a pair of metal clamps (2) are fixedly connected through the connecting plate (1) and the connecting bolts (6). 2. A flange connection joint that is convenient for quick disassembly according to claim 1, characterized in that: the flange includes an upper flange (3), a lower flange (5) and a sealing gasket (4 ), the upper surface of the upper flange (3) is a slope inclined at a certain angle from the inside to the outside, and the lower surface of the lower flange (5) is also a slope inclined at a certain angle from the inside to the outside.