CN215950665U

CN215950665U - Crimping pipe fitting

Info

Publication number: CN215950665U
Application number: CN202122495198.3U
Authority: CN
Inventors: 郭劲松
Original assignee: Taizhou Dingya Machinery Co ltd
Current assignee: Taizhou Dingya Machinery Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-03-04
Anticipated expiration: 2031-10-15

Abstract

The utility model provides a crimping pipe fitting, and belongs to the technical field of pipe fittings. It has solved the high problem that just has the potential safety hazard of current pipe connection technical requirement. This crimping pipe fitting, include the pipe fitting body that is connected with the pipeline, and make the pipe fitting body inconsistent with the link of pipeline, the pipe fitting body is provided with the outside embedding that extends of axial with the terminal surface that pipeline inconsistent end the interior extension portion in the pipeline, the pipe fitting body still is provided with the outside extension of axial and extend to the extension portion of pipeline department with the terminal surface that pipeline inconsistent, should extend the outside that the portion is located the pipeline, and leaves the space between the internal perisporium of this extension portion and the periphery wall of pipeline, and the pipeline is located the ring channel of having seted up two axial interval distribution on the periphery wall of outer extension portion, and the extension portion is warp through radial inside crimping and is pressed to in the corresponding ring channel, and with two the ring channel cooperation forms spacing portion of external pressure joint and the spacing portion of internal pressure joint. The utility model has the advantages of low connection technology and high safety.

Description

Crimping pipe fitting

Technical Field

The utility model belongs to the technical field of pipe fittings, and relates to a crimping pipe fitting.

Background

The pipe fitting is a part which plays roles of connection, control, direction change, shunt, sealing, support and the like in a pipeline system. The existing pipe fittings are generally divided into plastic pipe fittings and metal pipe fittings, and due to the difference of structural strength and price, the application scenes of the two pipe fittings are different, wherein the metal pipe fittings and the pipeline are generally connected by brazing.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a crimping pipe fitting which has good sealing performance and is convenient to connect.

The purpose of the utility model can be realized by the following technical scheme: a crimping pipe fitting comprises a pipe fitting body connected with a pipeline, and is characterized in that the length A of the pipe fitting body is greater than the length B of the pipeline, and the pipe fitting body is abutted against the connecting end of the pipeline, the end surface of the abutted end of the pipe fitting body and the pipeline is provided with an inner extending part which axially extends outwards and is embedded in the pipeline in an extending way, the end surface of the pipe fitting body, which is abutted against the pipeline, is also provided with an outward extending part which axially extends outwards and extends to the pipeline, the outer expansion part is positioned at the outer side of the pipeline, a gap is reserved between the inner peripheral wall of the outer expansion part and the outer peripheral wall of the pipeline, the peripheral wall of the pipeline positioned at the outer extension part is provided with two annular grooves which are axially distributed at intervals, the outer extension part is pressed into the corresponding annular groove through radial inward compression deformation and is matched with the two annular grooves to form an outer compression limiting part and an inner compression limiting part.

In the above one of the crimping pipe fitting, the pipe fitting body is made of a red copper material.

In foretell crimping pipe fitting, the internal perisporium of pipeline on set up the mounting groove that extends the installation in supplying, the pipeline be located the terminal surface of mounting groove department and be provided with the outside arch of axial and embedding couple portion in the interior extension portion, interior extension portion be located the terminal surface of couple portion department and set up the embedded groove that supplies couple portion embedding installation, the transversal L shape of personally submitting two symmetries settings of this embedded groove, the embedded groove in set up the seal ring of strengthening the leakproofness.

In foretell crimping pipe fitting, the portion of expanding outward be the slope setting, the portion of expanding outward and be provided with the cover between the pipeline and locate sealing ring pad one on the pipeline, this sealing ring pad one set up in the inboard of the spacing portion of internal compression joint, sealing ring pad one and the portion of expanding outward laminating lateral wall be the slope setting.

In the crimping pipe fitting, a second sealing ring gasket is sleeved on the peripheral wall of the pipeline between the two annular grooves, and the cross section of the second sealing ring gasket is in two symmetrical isosceles trapezoid structures.

In the above-mentioned crimping pipe fitting, the length C of the outer crimping limiting part is smaller than the length D of the annular groove.

In the crimping pipe fitting, the outer crimping limiting part is sleeved with an annular sealing gasket, and the outer end of the annular sealing gasket axially extends outwards and extends to the pipeline.

Compared with the prior art, the crimping pipe fitting has the following advantages:

1. the setting of outer extension portion reduces the thickness of pipe fitting when making its ability crimping, makes the better crimping that carries on of its ability, also can guarantee the leakproofness behind the crimping, and the setting of overhead kick portion makes it spacing to it when making its ability post crimping, removes when preventing the crimping, leads to influencing follow-up assembly and leakproofness to technical requirement has been reduced, security when guaranteeing to connect simultaneously.

Drawings

Fig. 1 is a schematic sectional view of the present crimp fitting.

Fig. 2 is an enlarged view of circle E of fig. 1 in the present crimping pipe fitting.

In the figure, 1, a pipeline; 2. a pipe body; 3. an inner extension portion; 4. an outer extension portion; 5. an annular groove; 6. externally crimping the limiting part; 7. an internal crimping limiting part; 8. mounting grooves; 9. a hook portion; 10. a groove is embedded; 11. a sealing gasket; 12. a first sealing ring gasket; 13. a second sealing ring gasket; 14. an annular seal.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the pressure connecting pipe fitting comprises a pipe fitting body 2 connected with a pipeline 1, and is characterized in that the inner diameter of the pipe fitting body 2 is the same as the inner diameter of the pipeline 1, and the outer diameter of the pipe fitting body 2 is larger than the outer diameter of the pipeline 1, that is, the length a of the pipe fitting body 2 is larger than the length B of the pipeline 1, and the pipe fitting body 2 is in contact with the connecting end of the pipeline 1, an inner extending part 3 which extends axially and outwards and is embedded into the pipeline 1 in an extending and sliding manner is arranged on the end surface of the end of the pipe fitting body 2 in contact with the pipeline 1, an outer extending part 4 which extends axially and outwards and is arranged at the pipeline 1 is further arranged on the end surface of the pipe fitting body 2 in contact with the pipeline 1, the outer extending part 4 is arranged outside the pipeline 1, a gap is left between the inner peripheral wall of the outer extending part 4 and the outer peripheral wall of the pipeline 1, two annular grooves 5 which are distributed axially at intervals are arranged on the outer peripheral wall of the outer extending part 4 of the pipeline 1, the outer extension parts 4 are pressed into the corresponding annular grooves 5 through radial inward compression deformation, and form an outer compression limiting part 6 and an inner compression limiting part 7 by being matched with the two annular grooves.

To be more specific, the pipe body 2 is made of a red copper material in order to make the pipe body 2 more flexible.

Further saying in detail, remove during for preventing the crimping, offer the mounting groove 8 that extends the installation of portion 3 in supplying on the internal perisporium of pipeline 1, the terminal surface that pipeline 1 is located mounting groove 8 department is provided with the outside arch of axial and imbeds in the extension portion 3 and have couple 9 of couple, the embedded groove 10 that supplies couple 9 embedding installation is offered on the terminal surface that interior extension portion 3 is located couple 9 department, and the transversal L shape of personally submitting two symmetries settings of this embedded groove 10 sets up the seal ring 11 of strengthening the leakproofness in the embedded groove 10.

In a further elaboration, for better crimping, outer extension portion 4 is the slope setting, outer extension portion 4 and pipeline 1 between be provided with the cover and locate sealing ring pad one 12 on the pipeline 1, this sealing ring pad one 12 set up in the inboard of the spacing portion 7 of interior crimping, sealing ring pad one 12 and outer extension portion 4 laminate the lateral wall mutually and be the slope setting.

In order to ensure the sealing performance after assembly, a second sealing ring gasket 13 is sleeved on the outer peripheral wall of the pipeline 1 between the two annular grooves 5, the cross section of the second sealing ring gasket 13 is in two symmetrical isosceles trapezoid structures, an annular sealing gasket 14 is sleeved on the external pressure joint limiting part 6, and the outer end of the annular sealing gasket 14 axially extends outwards and extends to the pipeline 1.

As a preferable structure, the length C of the external crimp limiting portion 6 is smaller than the length D of the annular groove 5.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A crimping pipe fitting comprises a pipe fitting body (2) connected with a pipeline (1), and is characterized in that the length A of the pipe fitting body (2) is larger than the length B of the pipeline (1), the pipe fitting body (2) is abutted to the connecting end of the pipeline (1), the end face of the abutted end of the pipe fitting body (2) and the pipeline (1) is provided with an inner extension portion (3) which axially extends outwards and is embedded into the pipeline (1), the end face of the abutted end of the pipe fitting body (2) and the pipeline (1) is further provided with an outer extension portion (4) which axially extends outwards and extends to the pipeline (1), the outer extension portion (4) is located on the outer side of the pipeline (1), a gap is reserved between the inner peripheral wall of the outer extension portion (4) and the outer peripheral wall of the pipeline (1), and the outer extension portion (4) which is axially distributed at intervals is arranged on the outer peripheral wall of the outer extension portion (4) of the pipeline (1), the outer extension parts (4) are pressed into the corresponding outer extension parts (4) through radial inward compression deformation, and are matched with the two outer extension parts (4) to form an outer compression limiting part (6) and an inner compression limiting part (7).

2. A crimped pipe member according to claim 1, wherein the pipe member body (2) is made of a red copper material.

3. The crimping pipe fitting of claim 1, wherein an installation groove (8) for the inner extending portion (3) to extend into is formed in the inner peripheral wall of the pipe (1), a hook portion (9) protruding outwards in the axial direction and embedded into the inner extending portion (3) is arranged on the end face of the pipe (1) at the installation groove (8), an embedded groove (10) for the hook portion (9) to be embedded into is formed in the end face of the inner extending portion (3) at the hook portion (9), the cross section of the embedded groove (10) is in an L shape, the two L shapes are symmetrically arranged, and a sealing gasket (11) for enhancing sealing performance is arranged in the embedded groove (10).

4. A crimping pipe fitting according to claim 1, characterized in that the outward extending portion (4) is disposed obliquely, a first sealing ring gasket (12) sleeved on the pipe (1) is disposed between the outward extending portion (4) and the pipe (1), the first sealing ring gasket (12) is disposed inside the inner crimping limiting portion (7), and the first sealing ring gasket (12) and the outward extending portion (4) are attached to the outer side wall in an oblique manner.

5. A crimping pipe fitting according to claim 1, characterized in that a second sealing ring gasket (13) is sleeved on the outer circumferential wall of the pipe (1) between the two annular grooves (5), and the cross section of the second sealing ring gasket (13) is arranged in two symmetrical isosceles trapezoid structures.

6. A crimping pipe fitting according to claim 1, characterized in that the length C of the outer crimp limiting portion (6) is smaller than the length D of the annular groove (5).

7. A crimping pipe fitting according to claim 1, characterized in that the outer crimping limiting part (6) is sleeved with an annular sealing gasket (14), and the outer end of the annular sealing gasket (14) extends axially outwards and extends to the pipe (1).