CN219035879U

CN219035879U - Connecting flange with good sealing performance

Info

Publication number: CN219035879U
Application number: CN202320141022.4U
Authority: CN
Inventors: 谢国江
Original assignee: Jianhu Kunteng Machinery Co ltd
Current assignee: Jianhu Kunteng Machinery Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-16
Anticipated expiration: 2033-02-07

Abstract

The utility model provides a connecting flange with good sealing performance, which comprises a first connecting pipe, a second connecting pipe, a sealing gasket, a first flange plate and a second flange plate, wherein one end of the first connecting pipe is fixedly connected with the first flange plate, the sealing gasket is arranged on the surface of the first flange plate in a matched manner, the second flange plate is arranged on the surface of the sealing gasket, which is far away from the first flange plate, and the second connecting pipe is fixedly connected with the surface of the second flange plate, which is far away from the sealing gasket.

Description

Connecting flange with good sealing performance

Technical Field

The utility model relates to the technical field of flanges, in particular to a connecting flange with good sealing performance.

Background

In urban life, people can use gas daily, and it can burn and give off heat, supplies urban resident and industrial enterprise to use, and gas is carried through the pipeline generally, carries out fixed mounting through the ring flange between pipeline and the pipeline, because there are a lot of large-scale equipment generally in the enterprise factory workshop, it produces vibrations when the operation, and the time is long, can lead to the bolt of connecting the ring flange to produce not hard up, and then leads to pipeline junction gas leakage.

Therefore, it is necessary to provide a connecting flange with good sealing performance to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a connecting flange with good sealing performance, which comprises a first connecting pipe, a second connecting pipe, a sealing gasket, a first flange plate and a second flange plate, wherein one end of the first connecting pipe is fixedly connected with the first flange plate, the sealing gasket is arranged on the surface of the first flange plate in a matched manner, the second flange plate is arranged on the surface of the sealing gasket, which is far away from the first flange plate, in a matched manner, and the second connecting pipe is fixedly connected on the surface of the second flange plate, which is far away from the sealing gasket, and the connecting flange is characterized in that positioning grooves are formed in the surfaces of the first flange plate and the second flange plate along central symmetry, limiting devices are connected with the surfaces of the four positioning grooves in a sliding manner, and the limiting devices are fixedly arranged on the first flange plate and the second flange plate through bolts.

Preferably, the surface of the first flange plate is symmetrically provided with arc-shaped grooves along the center, and a plurality of arc-shaped grooves are matched with the second flange plate.

Preferably, the surface of the first flange plate is provided with an annular groove, a plurality of arc-shaped grooves are communicated with the annular groove, and the annular groove is matched with the sealing gasket.

Preferably, the limiting device comprises a U-shaped block, a movable column, a first spring, a top block, a first connecting column, a second connecting column, a column groove, a movable block and a second spring, wherein the movable column is inserted on the surface of the positioning groove in a sliding manner, the U-shaped blocks are connected with the surface of the two movable columns in a sliding manner, the first springs are symmetrically and fixedly connected with the surfaces of the U-shaped blocks, the top block is fixedly connected with one end of the movable block, which is far away from the positioning groove, of the U-shaped blocks, the first connecting column is fixedly connected with the surface of one U-shaped block at equal intervals, the column groove is formed in the surface of the first connecting column, the movable block is connected with the surface of the column groove in a sliding manner, the second connecting column is fixedly connected with the surface of the movable block, one end, which is far away from the movable block, of the second connecting column is sleeved with the second spring, and one U-shaped block is matched and mounted with a bolt.

Preferably, inclined grooves are symmetrically formed in the surfaces of the U-shaped blocks, and chamfering is conducted on the edges of the surfaces of the first flange plate and the second flange plate.

Preferably, the initial state of the second spring is a compressed state.

Compared with the prior art, the connecting flange provided by the utility model has the beneficial effects that:

1. the surface of the first flange plate is provided with the plurality of arc grooves, so that initial installation and positioning are carried out between the first flange plate and the second flange plate, the annular grooves are tightly matched with the sealing gasket, and the better air tightness of the joint when the first flange plate is matched with the second flange plate is ensured.

2. When the U-shaped connecting pipe is installed, the sealing gasket is matched with the annular groove, the second flange plate is matched with the arc grooves, initial installation and positioning are carried out, the first flange plate and the second flange plate are fixedly installed through the bolts and the nuts, the inclined grooves on the surface of the U-shaped plate are in contact with the corners of the surface of the first flange plate and the surface of the second flange plate, relative sliding is generated, the movable column is also in contact with the surface of the first flange plate and the surface of the second flange plate, the first spring is stretched until the movable column is in sliding connection with the positioning groove, at the moment, the first spring is still in a stretched state, the movable column is tightly matched with the positioning groove by utilizing the elastic force of the first spring, the U-shaped block is installed and limited with the first flange plate and the second flange plate, in the process, the second spring is further compressed, and sufficient acting force can be ensured to act on the surface of the movable block, so that the two U-shaped blocks are respectively clung to the first flange plate and the second flange plate, the bolt and the nut are in rotation limiting, loosening is avoided, and the sealing performance of the joint of the first connecting pipe and the second connecting pipe is ensured.

Drawings

FIG. 1 is one of the overall structural schematic of the present utility model;

FIG. 2 is a schematic view of a spacing device according to the present utility model;

FIG. 3 is a second schematic diagram of the overall structure of the present utility model;

FIG. 4 is a third schematic overall structure of the present utility model;

FIG. 5 is a schematic view of a positioning slot structure according to the present utility model;

FIG. 6 is a schematic view of a second flange structure according to the present utility model;

FIG. 7 is a schematic view of a first flange structure according to the present utility model;

fig. 8 is a schematic view of the gasket structure of the present utility model.

In the figure: 1. a first connection pipe; 2. a second connection pipe; 3. a sealing gasket; 4. a first flange; 5. a second flange; 6. a positioning groove; 7. a limiting device; 8. a bolt; 9. an arc-shaped groove; 10. an annular groove; 11. a U-shaped block; 12. a movable column; 13. a first spring; 14. a top block; 15. a first connection post; 16. a second connection post; 17. a column groove; 18. a movable block; 19. a second spring; 20. and a chute.

Detailed Description

Referring to fig. 1 to 8, the utility model relates to a connecting flange with good sealing performance, which comprises a first connecting pipe 1, a second connecting pipe 2, a sealing gasket 3, a first flange 4 and a second flange 5, wherein one end of the first connecting pipe 1 is fixedly connected with the first flange 4, the sealing gasket 3 is arranged on the surface of the first flange 4 in a matched manner, the second flange 5 is arranged on the surface of the sealing gasket 3 far away from the first flange 4 in a matched manner, and the second connecting pipe 2 is fixedly connected on the surface of the second flange 5 far away from the sealing gasket 3.

The arc grooves 9 are symmetrically formed in the surface of the first flange plate 4 along the center, the arc grooves 9 are matched with the second flange plate 5, the annular grooves 10 are formed in the surface of the first flange plate 4, the arc grooves 9 are communicated with the annular grooves 10, the annular grooves 10 are matched with the sealing gasket 3, the annular grooves 10 are tightly matched with the sealing gasket 3, and the air tightness of the joint is better when the first flange plate 4 is matched with the second flange plate 5.

The limiting device 7 comprises U-shaped blocks 11, movable columns 12, first springs 13, ejector blocks 14, first connecting columns 15, second connecting columns 16, column grooves 17, movable blocks 18 and second springs 19, wherein the surfaces of the positioning grooves 6 are connected with the movable columns 12 in a sliding mode, the surfaces of the two movable columns 12 are connected with the U-shaped blocks 11 in a sliding mode, the surfaces of the U-shaped blocks 11 are fixedly connected with the first springs 13 in a symmetrical mode, one end of each movable block 18, far from the positioning groove 6, is fixedly connected with the ejector block 14, one end of each first spring 13, far from each U-shaped block 11, is fixedly connected with the ejector block 14, one end of each U-shaped block 11 is fixedly connected with the corresponding first connecting column 15, the surfaces of the first connecting columns 15 are provided with the column grooves 17, the surfaces of the column grooves 17 are connected with the movable blocks 18 in a sliding mode, one end, far from the movable blocks 18, of each second connecting column 16 is fixedly connected with the other U-shaped blocks 11, the surfaces of the second connecting columns 16 are sleeved with the second springs 19, one end, far from the

corresponding U-shaped blocks

11 and 8 are matched and mounted, limiting functions are achieved, and the limiting function is achieved, and the first connecting pipe is prevented from being connected with the first connecting pipe 2 in a rotating mode, and the limiting joint is further achieved.

Chute 20 has been seted up to the symmetry of U-shaped piece 11 surface, and the surface border department of first ring flange 4 and second ring flange 5 all is chamfer and is handled, and the U-shaped piece 11 of being convenient for cooperates the installation with first ring flange 4 and second ring flange 5.

The initial state of the second spring 19 is a compressed state, so that the U-shaped block 11 can be guaranteed to be tightly attached to the surfaces of the first flange 4 and the second flange 5 by enough acting force, and the bolts 8 and the nuts are stably limited.

The working principle and the using flow of the utility model are as follows:

during installation, the sealing gasket 3 is matched with the annular groove 10, the second flange 5 is matched with the arc grooves 9, initial installation and positioning are carried out, the first flange 4 and the second flange 5 are fixedly installed through bolts 8 and nuts, the inclined grooves 20 on the surface of the U-shaped plate are in contact with the corners of the surfaces of the first flange 4 and the second flange 5, relative sliding is generated, the movable column 12 is also in surface contact with the first flange 4 and the second flange 5, the first spring 13 is stretched until the movable column 12 is in sliding connection with the positioning groove 6, at the moment, the first spring 13 is still in a stretched state, the movable column 12 is tightly matched with the positioning groove 6 by the elastic action of the first spring 13, installation and limitation are carried out on the U-shaped block 11, the first flange 4 and the second flange 5, relative sliding is generated between the movable block 18 and the column groove 17, the second spring 19 is further compressed, enough acting force can be ensured to act on the surface of the movable block 18, and the two U-shaped blocks 11 are respectively in tight fit with the first flange 4, the second flange 5 and the bolts 8 are in tight joint.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a flange that sealing performance is good, includes first connecting pipe (1), second connecting pipe (2), sealed pad (3), first ring flange (4) and second ring flange (5), the one end fixedly connected with first ring flange (4) of first connecting pipe (1), sealed pad (3) are installed to the surface mounting of first ring flange (4), sealed pad (3) are kept away from the surface mounting of first ring flange (4) and are installed second ring flange (5), the surface fixedly connected with second connecting pipe (2) of sealed pad (3) are kept away from to second ring flange (5), a serial communication port, constant head tank (6) are all offered along central symmetry on the surface of first ring flange (4) and second ring flange (5), four the surface sliding grafting of constant head tank (6) has stop device (7), a plurality of stop device (7) all install with first ring flange (4) and second ring flange (5) cooperation, through bolt (8) fixed mounting between first ring flange (4) and second ring flange (5).

2. The connecting flange with good sealing performance according to claim 1, wherein: arc grooves (9) are symmetrically formed in the surface of the first flange plate (4) along the center, and the arc grooves (9) are matched with the second flange plate (5).

3. The connecting flange with good sealing performance according to claim 2, wherein: an annular groove (10) is formed in the surface of the first flange plate (4), a plurality of arc-shaped grooves (9) are communicated with the annular groove (10), and the annular groove (10) is installed in a matched mode with the sealing gasket (3).

4. The connecting flange with good sealing performance according to claim 1, wherein: the limiting device (7) comprises a U-shaped block (11), a movable column (12), a first spring (13), a top block (14), a first connecting column (15), a second connecting column (16), column grooves (17), movable blocks (18) and a second spring (19), wherein the movable column (12) is inserted into the surface of the positioning groove (6) in a sliding manner, the two movable columns (12) are connected with the U-shaped block (11) in a sliding manner, the first spring (13) is symmetrically and fixedly connected with the surface of the U-shaped block (11), one end of the movable block (18) far away from the positioning groove (6) is fixedly connected with the top block (14), one end of the first spring (13) far away from the U-shaped block (11) is fixedly connected with the top block (14), one surface of the U-shaped block (11) is fixedly connected with the first connecting column (15) in an equidistant manner, the column grooves (17) are formed in the surface of the first connecting column (15), the movable block (18) is connected with the surface of the movable column grooves (17) in a sliding manner, one end of the movable block (18) is fixedly connected with the second connecting column (16) far away from the second end of the movable block (16), the other end of the movable block (16) is fixedly connected with the second connecting column (16), one of the U-shaped blocks (11) is matched with the bolt (8).

5. The connection flange with good sealing performance according to claim 4, wherein: chute (20) are symmetrically arranged on the surface of the U-shaped block (11), and chamfering is carried out on the surface edges of the first flange plate (4) and the second flange plate (5).

6. The connection flange with good sealing performance according to claim 4, wherein: the initial state of the second spring (19) is a compressed state.