CN212643812U

CN212643812U - Pipe body connecting piece and detachable connecting pipe

Info

Publication number: CN212643812U
Application number: CN202021299080.2U
Authority: CN
Inventors: 顾美良; 钱志娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-02
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a pipe body connecting piece and a detachable connecting pipe, including connecting female member and connecting son, the first end of connecting female member has the internal thread, the first end of connecting son has the external screw thread, it is connected with connecting son through internal thread and external screw-thread fit to connect female member, the second end of connecting female member and the second end of connecting son are polished rod portion, polished rod portion can rivet towards in the body and with body inner wall interference fit. When the pipe body connecting piece is used, the second ends of the connecting female piece and the connecting sub piece are respectively riveted and punched in a pipe body, so that the connecting female piece and the connecting sub piece are connected with the pipe body in an interference fit mode to form a whole pipe, the pipe body connecting piece is not limited by the inner diameter and the wall thickness of the pipe body, the connecting strength is high, the cost is low, the use is convenient, and the pipe body connecting piece is particularly suitable for connecting pipe bodies with small pipe diameters and thin pipe walls.

Description

Pipe body connecting piece and detachable connecting pipe

Technical Field

The utility model relates to a pipe fitting technical field, concretely relates to body connecting piece and a detachable connecting pipe.

Background

In the prior art, a long pipe is generally cut into a plurality of short pipes for transportation, and the short pipes are connected into a whole when being transported to a destination.

At present, the connection mode between the short pipes has two modes of splicing and threaded connection, the strength between the two pipe bodies is lower during splicing, the requirements on the caliber and the wall thickness of the pipe bodies are higher when the threaded connection is adopted, and the pipe bodies with small calibers and thinner wall thickness are not suitable.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a body connecting piece and a detachable connecting pipe, its stability that both can improve body and body connection can be applicable to the body that the pipe diameter is little, the pipe wall is thin again.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a pipe body connecting piece, is including connecting female member and connecting the sub-member, the first end of connecting the female member has the internal thread, the first end of connecting the sub-member has the external screw thread, it is connected with the sub-member through internal thread and external screw thread fit to connect the female member, the second end of connecting the female member and the second end of connecting the sub-member are polished rod portion, polished rod portion can rivet towards in the body and with body inner wall interference fit.

When the pipe body connecting piece is used, the second ends of the connecting female piece and the connecting sub piece are respectively riveted and punched in a pipe body, so that the connecting female piece and the connecting sub piece are connected with the pipe body in an interference fit mode to form a whole pipe, the pipe body connecting piece is not limited by the inner diameter and the wall thickness of the pipe body, the connecting strength is high, the cost is low, the use is convenient, and the pipe body connecting piece is particularly suitable for connecting pipe bodies with small pipe diameters and thin pipe walls.

For better realizing the above scheme, preferably, the outer wall of the port of the first end of the connecting female member is provided with a first limit ring, and the outer wall of the port of the first end of the connecting male member is provided with a second limit ring attached to the first limit ring.

Preferably, the outer wall of the port connecting the second end of the female member and the outer wall of the port connecting the second end of the male member are chamfered.

Preferably, the outer annular wall of the second end of the connecting female element and the outer annular wall of the second end of the connecting male element are conical surfaces.

Preferably, the cone angle of the conical surface is 3 to 5 per thousand.

Preferably, the length of the conical surface is not less than 10 mm.

Preferably, the length of the internal thread and the external thread is not less than 10 mm.

A detachable connecting pipe comprises a first pipe body, a second pipe body and any one of the pipe body connecting pieces, wherein the first pipe body and the second pipe body are connected into a whole through the pipe body connecting pieces.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a pipe body connecting piece according to a first embodiment;

FIG. 2 is an exploded view of FIG. 1

FIG. 3 is a schematic structural diagram of a detachable connection tube according to a second embodiment;

reference numerals: the connecting device comprises a connecting female part 1, an internal thread 11, a first limiting ring 12, a chamfer 13, a conical surface 14, a connecting sub-part 2, an external thread 21, a second limiting ring 22, a first pipe body 3 and a second pipe body 4.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Example one

As shown in fig. 1 and 2, a pipe body connecting piece comprises a connecting female piece 1 and a connecting male piece 2, wherein a first end of the connecting female piece 1 is provided with an internal thread 11, a first end of the connecting male piece 2 is provided with an external thread 21, the connecting female piece 1 and the connecting male piece 2 are connected with the external thread 21 through the internal thread 11 in a matched manner, a second end of the connecting female piece 1 and a second end of the connecting male piece 2 are both polished rod portions, and the polished rod portions can be riveted and punched in a pipe body and in interference fit with the inner wall of the pipe body.

When the pipe body connecting piece is used, the second ends of the connecting female piece 1 and the connecting sub piece 2 are respectively riveted and punched in a pipe body, so that the connecting female piece 1 and the connecting sub piece 2 are connected with the pipe body in an interference fit mode to form a whole pipe, the pipe body connecting piece is not limited by the inner diameter and the thickness of the pipe wall of the pipe body, the connecting strength is high, the cost is low, the use is convenient, and the pipe body connecting piece is particularly suitable for connection of pipe bodies with small pipe diameters and thin pipe walls.

In this embodiment, the port outer wall of the first end of the connecting female member 1 has the first limit ring 12, the port outer wall of the first end of the connecting male member 2 has the second limit ring 22 attached to the first limit ring 12, and the first limit ring 12 and the second limit ring 22 cooperate to form a stop structure, so as to avoid excessive precession of the connecting female member 1 and the connecting male member 2.

In this embodiment, the diameters of the first and second position-limiting

rings

12 and 22 are the same as the diameter of the pipe, so that the connection between the pipe and the pipe is more beautiful.

In this embodiment, the port outer wall of the second end of the connection female member 1 and the port outer wall of the second end of the connection male member 2 both have a chamfer 13, and the chamfer 13 is provided to help the connection female member 1 and the connection male member 2 to be riveted and punched in the pipe body quickly.

In this embodiment, the outer annular wall connecting the second end of the female element 1 and the outer annular wall connecting the second end of the male element 2 are both tapered surfaces 14, the taper angle of the tapered surfaces 14 is 3% o to 5% o, and the length of each tapered surface 14 is not less than 10 mm. Set up conical surface 14 and can make to connect son spare 2 and connect female 1 and get into the body more easily, can make the connection son spare 2 that gets into in the body and connect female 1 and rise at the body inner wall moreover, reach the effect of accurate connection.

In the embodiment, the lengths of the internal thread 11 and the external thread 21 are not less than 10mm, so that high strength between the connecting female element 1 and the connecting male element 2 can be ensured.

Example two

As shown in fig. 3, the present embodiment provides a detachable connection tube according to the first embodiment, which includes a first tube 3, a second tube 4, and the tube connector provided in the first embodiment, wherein the first tube 3 and the second tube 4 are connected into a whole through the tube connector.

Specifically, the second end of the connecting female member 1 is riveted into the first pipe body 3, and the second end of the connecting male member 2 is riveted into the second pipe body 4.

The detachable connecting pipe that this embodiment provided, joint strength between first body 3 and the second body 4 can reach the intensity with the integrative structure of body, and its structure is pleasing to the eye, the transportation of being convenient for.

In the description of the present invention, numerous specific details are set forth, however, it can be appreciated that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A pipe body coupling, characterized by: including connecting female member (1) and connecting sub-member (2), the first end of connecting female member (1) has internal thread (11), the first end of connecting sub-member (2) has external screw thread (21), connect female member (1) and be connected with external screw thread (21) through internal thread (11) with connecting sub-member (2) cooperation, the second end of connecting female member (1) and the second end of connecting sub-member (2) are polished rod portion, polished rod portion can rivet and dash in the body and with body inner wall interference fit.

2. A pipe coupling according to claim 1, wherein: the port outer wall of the first end of the connecting female part (1) is provided with a first limiting ring (12), and the port outer wall of the first end of the connecting male part (2) is provided with a second limiting ring (22) attached to the first limiting ring (12).

3. A pipe coupling according to claim 2, wherein: and the outer wall of the port at the second end of the female connecting piece (1) and the outer wall of the port at the second end of the male connecting piece (2) are both provided with chamfers (13).

4. A pipe coupling according to claim 1, wherein: the outer ring wall of the second end of the female connecting element (1) and the outer ring wall of the second end of the male connecting element (2) are both conical surfaces (14).

5. A pipe coupling according to claim 4, wherein: the cone angle of the conical surface (14) is 3-5 per mill.

6. A pipe coupling according to claim 5, wherein: the lengths of the conical surfaces (14) are not less than 10 mm.

7. A pipe coupling according to claim 1, wherein: the length of the internal thread (11) and the length of the external thread (21) are not less than 10 mm.

8. A detachable connecting pipe is characterized in that: comprising a first tube (3), a second tube (4) and a tube connection according to any one of claims 1 to 7, the first tube (3) and the second tube (4) being connected together by a tube connection.