CN203656400U - Sealing connecting device of pipes - Google Patents

Abstract

The utility model discloses a sealing connection device for pipe materials, and provides a device capable of simultaneously realizing fixing and sealing. The intermediate shaft is composed of a first connecting part and a second connecting part whose axes coincide. There is a sealing connection through hole in the first connecting part. There is a sealing through groove integrated with the sealing connecting through hole on the side of the sealing connecting through hole. On the connection part, there is an installation through hole inside the fixed seat; the sealing assembly is composed of a splint and a sealing gasket. The first connecting part on the shaft is connected to the side of the fixing seat through a sealed connection bolt; the second connecting part is connected to the fastening nut through threads, and there is a fastening gasket between the fixing seat and the fastening nut. The intermediate shaft and the two pipes connected in the fixed seat are fixed by tightening the nut, and the sealing assembly is sealed with the two pipes by tightening the bolt, the structure is simple and the use is convenient.

Description

Pipe sealing connection device

technical field

The utility model relates to the technical field of heating and ventilating, in particular to a sealing connection device for pipes which can realize fixing and sealing at the same time.

Background technique

When installing pipelines in the HVAC field, it is often necessary to connect pipes. At present, the connection methods of pipes mainly include direct welding, flange connection, etc. The welding between different pipes requires special welding processes. Flange connection It is easy to disassemble and assemble, and flange connection also requires welding flange work. All welding work needs to be equipped with professional technicians and welding equipment, which increases the manpower and material costs of the construction site to a certain extent. Therefore, there is an urgent need for a pipe connection method that can replace pipe welding and can be fixed and sealed at the same time.

Utility model content

The purpose of the utility model is to provide a pipe connection device capable of simultaneously fixing and sealing against the technical defects in the prior art.

The technical scheme adopted for realizing the purpose of this utility model is:

A sealing connection device for pipe materials, including an intermediate shaft, a fixed seat, a sealing connection bolt, a sealing assembly, a fastening gasket and a fastening nut, the intermediate shaft is composed of a first connecting portion and a second connecting portion whose axes coincide, A sealing connection through hole is arranged in the radial direction in the first connecting part, and a sealing through groove integrated with the sealing connection through hole is provided on the side of the sealing connection through hole facing the second connecting part. A shaft hole cooperating with the first connecting part is arranged in the axial direction, and the first connecting part passes through the shaft hole, so that the fixing seat fits on the first connecting part, and the fixing seat An installation through hole matched with the sealing connection through hole is provided in the radial direction, and a platform flush with the junction of the first connecting part and the second connecting part is provided on the side of the fixing seat; the sealing The assembly is composed of a splint and a sealing gasket. The splint is composed of a cylindrical part matched with the installation through hole and a connecting body corresponding to the sealing groove. The sealing gasket is located inside the splint and The shape of the splint is the same, the sealing assembly is installed in the installation through hole, and the connection body on the splint and the part of the sealing gasket corresponding to the connection body are exposed on the intermediate shaft. The first connecting part and the side of the fixing seat are connected by the sealing bolt; the second connecting part is connected with the fastening nut through threads, and the fastening nut is installed between the fixing seat and the fastening nut. gasket.

The sealing channel is located on the side of the first connecting part facing the second connecting part, and the side of the first connecting part facing the second connecting part is located at the upper and lower parts of the second connecting part A first groove and a second groove are respectively provided, and the sealing connection bolts are in two groups, respectively located in the first groove and the second groove.

The gasket is made of polytetrafluoroethylene.

Compared with the prior art, the beneficial effects of the utility model are:

The sealing connection device of the utility model gradually reduces the gap between the common interface of the intermediate shaft and the fixed seat and the two pipes to be connected through the movement of the intermediate shaft through fastening nuts until the effective fixed connection is achieved. The gap between the sealing component and the two pipes that need to be connected gradually narrows until an effective sealed connection can be achieved at the same time. The fixing and sealing connection of the pipes is simple in structure, low in cost, safe and efficient, and convenient in operation, which is conducive to reducing the cost of on-site operations. human and material costs.

Description of drawings

Fig. 1 shows the schematic diagram of the sealing connection device of the utility model pipe;

Figure 2 is a front view of the intermediate shaft;

Figure 3 is a top view of the intermediate shaft;

Fig. 4 is the right side view of the intermediate shaft;

Figure 5 is a front view of the holder;

Figure 6 is a top view of the holder;

Figure 7 is a right view of the holder;

Figure 8 is a front view of the sealing assembly;

Figure 9 is a top view of the sealing assembly.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The schematic diagram of the sealing connection device of the pipe material of the present invention is shown in Fig. 1-Fig. The intermediate shaft 1 is composed of a first connection part 7 and a second connection part 8 whose axes coincide. The first connection part 7 is provided with a sealing connection through hole 9 radially, and the sealing connection through hole 9 faces the second The side of the connecting part 8 is provided with a sealing through groove 10 integrated with the sealing connection through hole, and the inside of the fixed seat 2 is provided with an axial hole 15 matching with the first connecting part 7 along the axial direction. A connecting part 7 passes through the shaft hole 15, so that the fixing seat 2 is sleeved on the first connecting part 7, and the inside of the fixing seat 2 is arranged radially to cooperate with the sealing connection through hole 9 The mounting through hole 13, the side of the fixed seat is provided with a platform 14 that is flush with the junction of the first connecting part 7 and the second connecting part 8; the sealing assembly is composed of a splint 4-1 and a sealing gasket 4 -2, the splint 4-1 is composed of a cylindrical part 16 matched with the installation through hole 13 and a connecting body 17 corresponding to the sealing groove 10, and the sealing gasket 4-2 is located The inner side of the splint 4-1 has the same shape as the splint, the sealing assembly is installed in the installation through hole 13, the connecting body 17 on the splint 4-1 and the sealing gasket are connected to the splint The corresponding part of the body 17 exposes the first connection part 7 on the intermediate shaft 1 and the side of the fixed seat 2, and is connected by the sealing connection bolt 3; the second connection part 8 and the fastening nut 6 The fastening washer 5 is installed between the fixing seat 2 and the fastening nut 6 through screw connection.

In this embodiment, the sealing channel 10 is located on the side of the first connecting part 7 facing the second connecting part 8, and the side of the first connecting part 7 facing the second connecting part is located on the The upper and lower parts of the second connecting part are respectively provided with a first groove 11-1 and a second 11-2, and the sealing connection bolts 3 are in two groups, respectively located in the first groove 11-1 and the second In the groove 11-2.

The sealing gasket 4-2 is made of polytetrafluoroethylene.

The assembly method is as follows: firstly put the sealing assembly 4 into the sealing connection through hole 9 of the intermediate shaft 1, and the axis lines of the two should coincide. Next, insert the intermediate shaft 1 into the shaft hole 15 along the axial direction inside the fixed seat 2, the interface positions of the two should be corresponding, then pass the fastening gasket 5 through the intermediate shaft 1, and tighten the fastening nut 6 to the intermediate shaft 1 in place. Finally, insert the two pipes that need to be connected into the holes formed by the sealing connection through hole 9 of the intermediate shaft 1 and the installation through hole 13 of the fixed seat 2, and after aligning the two pipes, tighten the fastening nut 6 The two are effectively fixed, and the two are effectively sealed by tightening the sealing connecting bolt 3 . If you need to loosen the connected two pipes again, you only need to unscrew the sealing connecting bolt 3 and the fastening nut 6 to a suitable position, and then extract the two pipes from the common hole of the intermediate shaft 1 and the fixing seat 2 to get final product.

The diameter of the sealed connection through hole 9 and the installation through hole 13 of the intermediate shaft 1 and the fixed seat 2, and the cylindrical portion 16 of the sealing assembly 4 can be designed in various sizes to meet the needs of connections between various pipe diameters. and fixed needs.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these Improvement and retouching should also be regarded as the protection scope of the present utility model.

Claims (3)

1. the seal connection of a tubing, it is characterized in that, comprise jack shaft (1), fixed base (2), bolt (3) is tightly connected, black box (4), fastening gasket (5) and tightening nut (6), described jack shaft (1) is made up of the first joint (7) and second joint (8) of dead in line, in described the first joint (7), be disposed radially the through hole that is tightly connected (9), the side towards the second joint (8) of the described through hole that is tightly connected (9) is provided with the sealing groove (10) with the described through hole that is tightly connected (9) one, described fixed base (2) inside is provided with the axis hole (15) matching with described the first joint (7) vertically, described the first joint (7) is through described axis hole (15), described fixed base (2) is enclosed within on described the first joint (7), described fixed base (2) inside is disposed radially the installation through hole (13) matching with the described through hole that is tightly connected (9), described fixed base (2) side is provided with the platform (14) concordant with the second joint (8) connecting part with described the first joint (7), described black box (4) is made up of clamping plate (4-1) and gasket seal (4-2), by the cylindrical part (16) matching with described installation through hole (13) with described sealing groove (10), corresponding connecting body (17) forms described clamping plate (4-1), described gasket seal (4-2) is positioned at described clamping plate (4-1) inner side identical with described clamping plate (4-1) shape, described black box (4) is installed in described installation through hole (13), connecting body (17) on described clamping plate (4-1) and described gasket seal (4-2) part corresponding with described connecting body (17) are all exposed the first joint (7) and fixed base (2) side on described jack shaft (1), and connect by the described bolt that is tightly connected (3), described the second joint (8) is threaded connection with described tightening nut (6), between described fixed base (2) and tightening nut (6), described fastening gasket (5) is installed.

2. the seal connection of tubing according to claim 1, it is characterized in that, the position that described the first joint (7) is positioned at described the second joint (8) upper and lower towards a side of described the second joint (8) is respectively arranged with the first groove (11-1) and the second groove (11-2), the described bolt that is tightly connected (3) is two groups, lays respectively in described the first groove (11-1) and the second groove (11-2).

3. the seal connection of tubing according to claim 1 and 2, is characterized in that, described gasket seal (4-2) is polytetrafluoroethylmaterial material.

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