CN219221530U

CN219221530U - High-sealing connecting joint

Info

Publication number: CN219221530U
Application number: CN202320118026.0U
Authority: CN
Inventors: 韩东; 李诗春; 王金山; 赵绍东; 陆小敏
Original assignee: Jiangsu Gaosheng Special Pipe Co ltd
Current assignee: Jiangsu Gaosheng Special Pipe Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-20
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to a high sealed attach fitting relates to pipe fitting technical field, and it includes public head and female head, public head with female head threaded connection, public head with female head all sets up coupling assembling in one side that deviates from each other, coupling assembling includes external screw thread portion and gland, external screw thread portion threaded connection is in the gland, external screw thread portion orientation gland one side is provided with a plurality of elastic sealing jaws, elastic sealing jaw follows the perisporium of external screw thread portion evenly sets up, reserves the clearance between the adjacent elastic sealing jaw, the gland orientation one side of elastic sealing jaw is provided with wedge lug; the beneficial effect of this application is as follows, drives wedge lug extrusion by the gland and is the elastic sealing jaw that the circumference set up, and elastic sealing jaw gathers together to the center under the extrusion, and the lateral wall of pipeline is fixed in the butt, realizes sealing connection between attach fitting and the pipeline, and junction contact surface is big, and is sealed effectual.

Description

High-sealing connecting joint

Technical Field

The application relates to the field of pipe fittings, in particular to a high-sealing connecting joint.

Background

One of the conventional methods for natural gas and coal gas reforming engineering is to replace pipelines, and the connection joints of the pipelines are indispensable components in the pipeline replacement engineering.

The related prior art discloses a pipeline joint, and it includes the hollow tube, the both ends of hollow tube are connected with first conical tube and second conical tube respectively, and hollow tube central authorities are connected with a connecting pipe, and the one end that the connecting pipe kept away from the hollow tube is connected with the storage ball. When the connecting device is used, the first conical pipe and the second conical pipe are respectively inserted into the pipelines to be connected, and the edges of the first conical pipe and the second conical pipe are abutted against the inner wall of the pipeline, so that the connection between the pipelines is realized.

In view of the above related art, the inventors found that when the pipe is connected by this method, the first conical tube and the second conical tube are abutted to the inner wall of the pipe through the edges, the contact area is small, the sealing effect is poor, and the leakage is easy to occur.

Disclosure of Invention

In order to increase the contact nep between the connecting joint and the pipeline, strengthen the sealing effect, reduce the leakage phenomenon, the application provides a high-sealing connecting joint.

The application provides a high sealed attach fitting adopts following technical scheme:

the utility model provides a high sealed attach fitting, includes public head and female head, public head with female head threaded connection, public head with one side that female head deviates from each other all sets up coupling assembling, coupling assembling includes external screw thread portion and gland, external screw thread portion threaded connection is in the gland, external screw thread portion orientation gland one side is provided with a plurality of elastic sealing jaws, elastic sealing jaw follows the perisporium of external screw thread portion evenly sets up, reserves the clearance between the adjacent elastic sealing jaw, the gland orientation one side of elastic sealing jaw is provided with wedge lug.

Through adopting above-mentioned technical scheme, insert at the pipeline and locate in the coupling assembling, the rotating gland for wedge lug is close to and extrudees the elastic sealing jaw, and the elastic sealing jaw gathers together to the center under the extrusion, and the mutual side wall that pastes mutually and butt pipeline between the elastic sealing jaw realizes being connected between coupling assembling and the pipeline, and area of contact is big, and is sealed effectual. After the connecting component is connected with the pipeline, the male head and the female head are connected with each other through threads, so that the pipeline can be connected with each other.

Optionally, a first sealing ring is disposed on a side of the wedge-shaped protrusion facing the elastic sealing jaw.

By adopting the technical scheme, the first sealing ring is attached to the elastic sealing jaw, so that the possibility that the external gas and liquid of the connecting assembly enter the connecting assembly is reduced, and the occurrence of corrosion of the internal structure of the connecting assembly is reduced.

Optionally, the elastic sealing jaw is provided with the sloping block towards adjacent one of them clearance department, elastic sealing jaw deviates from sloping block one side is provided with the chute, the sloping block with the inclination of chute is unanimous.

Through adopting above-mentioned technical scheme, the elastic sealing jaw is gathered together the back towards the center, and adjacent sloping block inserts in locating the chute, has increased the area of contact when pasting mutually between the elastic sealing jaw, has strengthened the sealed effect after the elastic sealing jaw pasted mutually.

Optionally, the connection assembly further includes a receiving portion, the receiving portion is disposed on an inner side of the external thread portion, and a space for inserting a pipe is reserved between the receiving portion and the external thread portion.

Through adopting above-mentioned technical scheme, the pipeline tip inserts and locates between external screw thread portion and the portion of accepting, and when elastic sealing jaw gathered together the extrusion pipeline lateral wall to the center, accept jaw and pipeline inner wall and paste mutually, reduce the pipeline and take place the possibility of deformation under the extrusion of elastic sealing jaw.

Optionally, an annular groove is formed in one side, facing the external thread portion, of the receiving portion, and a second sealing ring is arranged in the groove.

By adopting the technical scheme, the second sealing ring enhances the tightness between the pipeline and the bearing part, and further reduces the occurrence of leakage phenomenon.

Optionally, the female head is provided with the third sealing ring towards public first one side, public first one end towards female head butt in the third sealing ring.

By adopting the technical scheme, the third sealing ring strengthens the tightness of the joint of the male head and the female head, and reduces the possibility of leakage of the joint of the male head and the female head.

Optionally, a fixing bolt is arranged at the joint of the male head and the female head, and a screw rod portion of the fixing bolt penetrates through the female head and is in threaded connection with the side wall of the male head.

Through adopting above-mentioned technical scheme, fixing bolt's setting can fix the relative position of public head and female head, has reduced the phenomenon that takes place not hard up after public head is connected with female head, has strengthened the job stabilization nature of attach fitting

Optionally, the screw portion of the fixing bolt does not penetrate through the side wall of the male.

Through adopting above-mentioned technical scheme, fixing bolt advances the lateral wall that runs through female first connecting portion, inserts the lateral wall of locating public first connecting portion, can not increase the inside gap of attach fitting, reduces the possibility that takes place to reveal.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the gland drives the wedge-shaped convex blocks to extrude the elastic sealing claws which are arranged circumferentially, the elastic sealing claws gather towards the center under extrusion, the outer side walls of the pipelines are fixedly abutted, the sealing connection between the connecting joints and the pipelines is realized, and the contact surface of the connecting parts is large, so that the sealing effect is good.

2. One side of the elastic sealing claws is provided with an inclined block, and the other side of the elastic sealing claws is provided with an inclined groove, so that the contact area between the elastic sealing claws is further increased when the elastic sealing claws are attached to each other, and the sealing effect is improved.

Drawings

Fig. 1 is an overall schematic view of a high seal joint according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a high seal joint according to an embodiment of the present application.

Fig. 3 is an enlarged schematic view at R in fig. 2.

Fig. 4 is a schematic diagram showing a resilient sealing jaw.

Reference numerals illustrate: 1. a male; 2. a female head; 3. a connection assembly; 301. an external thread portion; 302. a gland; 303. a receiving part; 4. an elastic sealing claw; 5. wedge-shaped protruding blocks; 6. a first seal ring; 7. a sloping block; 8. a chute; 9. an annular groove; 10. a second seal ring; 11. a third seal ring; 12. and (5) fixing bolts.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a high-sealing connecting joint. Referring to fig. 1 and 2, the high-sealing connection joint comprises a male head 1 and a female head 2 of a main body part, the male head 1 and the female head 2 are in threaded connection with each other, the male head 1 of a connection part of the male head 1 and the female head 2 is an external thread, and the female head 2 is an internal thread. The end butt of public head 1 towards female head 2 is by third sealing ring 11, and third sealing ring 11 bonds in female head 2 inner wall, and the material of third sealing ring 11 can be rubber, and public head 1 is provided with fixing bolt 12 with female head 2 junction, and fixing bolt 12's screw rod portion runs through female head 2 junction's lateral wall and threaded connection in public head 1 junction's lateral wall, and fixing bolt 12's screw rod portion does not run through public head 1 junction's lateral wall. The male head 1 and the female head 2 are provided with a connecting component 3 on one side facing away from each other, and the connecting component 3 is used for connecting a pipeline 13.

Referring to fig. 2 and 4, the connection assembly 3 includes an external screw part 301 and a pressing cover 302, one end of the external screw part 301 is integrally formed with the main body, and the other end is welded with an elastic sealing jaw 4, and the elastic sealing jaw 4 may be made of rubber. The elastic sealing claws 4 are a plurality of and evenly arranged on the peripheral wall of the external thread, gaps are reserved between the adjacent elastic sealing claws 4, one side of each elastic sealing claw 4, which faces one gap, is integrally formed with the inclined block 7, the other side of each elastic sealing claw is provided with the inclined groove 8, the inclination of each inclined block 7 is consistent with that of each inclined groove 8, and the adjacent elastic sealing claws 4 can be mutually attached.

Referring to fig. 2 and 3, one end of the gland 302 is screwed with the external thread portion 301, the other end is integrally formed with a wedge-shaped protrusion 5, and a first sealing ring 6 is bonded to one side of the wedge-shaped protrusion 5 facing the elastic sealing jaw 4, and the first sealing ring 6 may be made of rubber.

Referring to fig. 2, the connection assembly 3 further includes a receiving portion 303, one end of the receiving portion 303 is integrally formed in the main body, an outer diameter of the receiving portion 303 is smaller than an inner diameter of the external thread portion 301, that is, a gap for inserting a side wall of the pipe 13 is reserved between the receiving portion 303 and the external thread portion 301, a length of the receiving portion 303 is larger than a sum of lengths of the external thread portion 301 and the elastic sealing jaw 4, an annular groove 9 is formed in a side, facing the external thread portion 301, of the receiving portion 303, a second sealing ring 10 is bonded in the annular groove 9, and a material of the second sealing ring 10 may be rubber.

The implementation principle of the high-sealing connecting joint provided by the embodiment of the application is as follows: when the sealing device is used, a pipeline 13 passes through the gland 302 and is inserted between the external threaded portion 301 and the receiving portion 303, then the gland 302 is in threaded connection with the external threaded portion 301, the gland 302 drives the wedge-shaped protruding block 5 and the first sealing ring 6 to approach and squeeze the elastic sealing claw 4, the elastic sealing claw 4 gathers towards the center and is attached to the center under the squeezing, the inclined block 7 is inserted into the inclined groove 8, the pipeline 13 is clamped after the elastic sealing claw 4 gathers, the receiving portion 303 abuts against the inner wall of the pipeline 13 at the moment, the second sealing ring 10 achieves sealing between the receiving portion 303 and the inner wall of the pipeline 13, the male head 1 and the female head 2 are mutually close to each other and are in threaded connection, and the fixing bolt 12 is in place in a threaded manner. The connecting joint of the embodiment is large in connecting contact surface between the whole connecting joint and the pipeline 13, has a multiple sealing structure, has a good sealing effect, and reduces the possibility of leakage.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A high-tightness joint, characterized in that: including public head (1) and female head (2), public head (1) with female head (2) threaded connection, public head (1) with one side that female head (2) deviate from each other all sets up coupling assembling (3), coupling assembling (3) include external screw thread portion (301) and gland (302), external screw thread portion (301) threaded connection is in gland (302), external screw thread portion (301) orientation gland (302) one side is provided with a plurality of elastic sealing jaw (4), elastic sealing jaw (4) are followed the perisporium of external screw thread portion (301) evenly sets up, reserves the clearance between adjacent elastic sealing jaw (4), gland (302) orientation one side of elastic sealing jaw (4) is provided with wedge lug (5).

2. The high seal joint of claim 1, wherein: a first sealing ring (6) is arranged on one side of the wedge-shaped lug (5) facing the elastic sealing claw (4).

3. The high seal joint of claim 1, wherein: the elastic sealing claw (4) is provided with a bevel block (7) towards one of adjacent gaps, one side of the elastic sealing claw (4) deviating from the bevel block (7) is provided with a chute (8), and the inclination of the bevel block (7) is consistent with that of the chute (8).

4. The high seal joint of claim 1, wherein: the connecting assembly (3) further comprises a bearing part (303), the bearing part (303) is arranged on the inner side of the external thread part (301), and a space for inserting the pipeline (13) is reserved between the bearing part (303) and the external thread part (301).

5. The high seal strength joint of claim 4, wherein: an annular groove (9) is formed in one side, facing the external thread part (301), of the receiving part (303), and a second sealing ring (10) is arranged in the groove.

6. The high seal joint of claim 1, wherein: the female head (2) is provided with a third sealing ring (11) towards one side of the male head (1), and one end of the male head (1) towards the female head (2) is abutted to the third sealing ring (11).

7. The high seal joint of claim 1, wherein: the male connector (1) is provided with a fixing bolt (12) at the joint of the female connector (2), and the screw rod part of the fixing bolt (12) penetrates through the female connector (2) and is in threaded connection with the side wall of the male connector (1).

8. The high seal strength joint of claim 7, wherein: the screw rod part of the fixing bolt (12) does not penetrate through the side wall of the male head (1).