CN209762477U

CN209762477U - Pipe fitting coupling mechanism and gas heater

Info

Publication number: CN209762477U
Application number: CN201920397231.9U
Authority: CN
Inventors: 卢楚鹏; 黄昌文; 梁存琨; 王仁聪
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2019-12-10
Anticipated expiration: 2029-03-27

Abstract

The utility model relates to a pipe fitting coupling mechanism and gas heater, pipe fitting coupling mechanism include: the pipe body penetrates into the connecting hole and is in expanded connection with the connector, so that a convex rib meshed with the groove is formed after the outer wall of the pipe body is extruded and deformed, the quality of the pipe can be effectively improved through the pipe connecting mechanism, and the service life of the gas water heater is prolonged.

Description

Pipe fitting coupling mechanism and gas heater

Technical Field

The utility model relates to a gas hot water equipment technical field especially relates to a pipe fitting coupling mechanism and gas heater.

Background

At present, a pipe and a joint in a gas water heater are usually connected in a brazing mode, but brazing is carried out, brazing flux needs to be added between the pipe and the joint, and after brazing, residual brazing flux is difficult to remove and can corrode the pipe, so that the quality of the pipe is reduced, and the service life of the gas water heater is further shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a pipe connecting mechanism and a gas water heater to improve the quality of the pipe and prolong the service life of the gas water heater.

In order to achieve the above object, the utility model provides a pipe fitting coupling mechanism, pipe fitting coupling mechanism include: the pipe body penetrates into the connecting hole and is in expanded joint with the joint, so that a convex rib used for being meshed with the groove is formed after the outer wall of the pipe body is extruded and deformed.

Compared with the background art, the pipe connecting mechanism at least has the following beneficial effects: the pipe body penetrates into a connecting hole of a connector, then a pipe expanding process is carried out on the pipe body through a pipe expander, the outer diameter of the pipe body is increased, the pipe body is pressed in the connecting hole, at the moment, the outer wall of the pipe body deforms at the position corresponding to the groove under the extrusion action of the pipe expander to form a convex rib, and the pipe body is connected with the connector through mutual meshing of the convex rib and the groove. The connection mode avoids the condition that the tube body is corroded by using a soldering flux while ensuring higher connection strength and good sealing performance between the tube and the joint, effectively improves the quality of the tube body, and prolongs the service life of the gas water heater.

In one embodiment, the depth of the groove may be 10% to 20% of the wall thickness of the tube body.

In one embodiment, the depth of the groove is 15% of the thickness of the tube wall of the tube body.

In one embodiment, the groove has a plurality of grooves.

In one embodiment, the groove is arranged along the circumferential direction of the connecting hole.

In one embodiment, the groove can be a V-shaped groove, a U-shaped groove or a trapezoidal groove.

In one embodiment, the groove is a threaded groove.

In one embodiment, the tube may be a copper tube, an aluminum tube, or a steel tube.

In one embodiment, the joint may be a copper joint, an aluminum joint, or a steel joint.

In order to achieve the above object, the present invention further provides a gas water heater, which comprises the above pipe connection mechanism.

Because the gas water heater adopts all the embodiments of the pipe connecting mechanism, the gas water heater at least has all the beneficial effects of the embodiments, and the description is omitted.

Drawings

Fig. 1 is a schematic structural view of a pipe connecting mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic view of a coupling in the tubing connection mechanism of FIG. 1;

FIG. 3 is a schematic view of a tubular body of the tubular connecting mechanism of FIG. 1;

Fig. 4 is an enlarged schematic structural view of a position a of the pipe connecting mechanism shown in fig. 1.

10. the pipe body 11, the convex rib 20, the joint 21, the connecting hole 22 and the groove.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

it will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

as shown in fig. 1 to 4, a pipe connecting mechanism includes: the pipe comprises a pipe body 10 and a joint 20, wherein a connecting hole 21 is arranged on the joint 20, a groove 22 is arranged on the side wall of the connecting hole 21, the pipe body 10 penetrates into the connecting hole 21 and is in expanded joint with the joint 20, so that a convex rib 11 used for being meshed with the groove 22 is formed after the outer wall of the pipe body 10 is extruded and deformed.

The pipe connecting mechanism firstly penetrates the pipe body 10 into the connecting hole 21 of the joint 20, then the pipe expanding process is carried out on the pipe body 10 through the pipe expander, so that the outer diameter of the pipe body 10 is increased, as can be seen from fig. 3 and 4, the outer diameter of the pipe section of the pipe body 10 placed in the connecting hole 21 is larger than that of the pipe section of the pipe body 10 outside the connecting hole 21, so that the pipe body 10 is pressed in the connecting hole 21, at the moment, the outer wall of the pipe body 10 is deformed at the position corresponding to the groove 22 under the extrusion action of the pipe expander to form the convex rib 11, and the pipe body 10 is connected with the joint 20 through mutual meshing of the convex rib 11. The connection mode ensures that the pipe and the joint 20 have higher connection strength and good sealing performance, avoids the condition that the pipe 10 is corroded by using soldering flux, effectively improves the quality of the pipe 10, and prolongs the service life of the gas water heater.

In one embodiment, the depth of the groove 22 may be 10% to 20% of the wall thickness of the tubular body 10. The body 10 forms the fin 11 after taking place to warp in the extrusion of the electric tube expander under the pipe expander process, the outer wall of body 10, the position that corresponds recess 22, can lead to the wall thickness of body 10 to reduce, set up the degree of depth of recess 22 to 10% -20% of the pipe wall thickness of body 10, when guaranteeing to have sufficient joint strength between body 10 and the joint 20, still can effectively prevent the wall thickness of the body 10 after the pipe expander process too thin to further guarantee that body 10 has higher quality.

In particular, the depth of the groove 22 is 15% of the thickness of the pipe wall of the pipe body 10, so that the pipe body 10 and the joint 20 have high connection strength, and the wall thickness of the pipe body 10 after the pipe expanding process is moderate.

In one embodiment, please refer to fig. 2, the groove 22 has a plurality of grooves. By arranging the plurality of grooves 22 on the side wall of the connecting hole 21, after the pipe body 10 is subjected to the pipe expanding process, the outer wall of the pipe body 10 correspondingly forms a plurality of convex ribs 11, and each convex rib 11 is meshed with each groove 22 in a one-to-one correspondence manner, so that the connecting strength and the sealing property between the pipe body 10 and the joint 20 are further improved.

In an embodiment, referring to fig. 2, the groove 22 is disposed along the circumferential direction of the connection hole 21, so that the groove 22 is in an annular structure, after the pipe body 10 is subjected to the pipe expanding process, the outer wall of the pipe body 10 correspondingly forms the annular rib 11, and the annular rib 11 and the annular groove 22 are engaged with each other to connect the pipe body 10 and the joint 20, so as to further improve the connection strength between the pipe body 10 and the joint 20, and further improve the connection sealing performance between the pipe body 10 and the joint 20.

In one embodiment, the groove 22 may be selected from a V-groove, a U-groove, or a trapezoidal groove. Specifically, referring to fig. 2, the groove 22 may be a V-shaped groove. Of course, the shape of the groove 22 is various and is not particularly limited.

In one embodiment, the recess 22 is a threaded groove.

In one embodiment, the tube 10 may be a copper tube, an aluminum tube, or a steel tube. In particular, the tubular body 10 may be selected as a copper tube. Of course, the tubular body 10 may be made of other metal materials, and is not limited thereto.

In one embodiment, the joint 20 may be a copper joint, an aluminum joint, or a steel joint. In particular, the joint 20 may be selected to be a copper joint. Of course, the joint 20 may be made of other metal materials, and is not limited in particular.

A gas water heater comprises the pipe fitting connecting mechanism.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A pipe fitting connection, said pipe fitting connection comprising: body (10) and joint (20), be equipped with connecting hole (21) on joint (20), the lateral wall of connecting hole (21) is equipped with recess (22), body (10) penetrate in connecting hole (21) and with joint (20) expand and connect, so that the outer wall of body (10) is formed after by extrusion deformation and is used for with fin (11) of recess (22) interlock.

2. A tubular connection as claimed in claim 1, characterized in that the depth of the groove (22) is between 10% and 20% of the wall thickness of the tubular body (10).

3. A tubular connection as claimed in claim 2, characterized in that said groove (22) has a depth of 15% of the wall thickness of said tubular body (10).

4. A pipe connecting mechanism according to claim 1, wherein said groove (22) has a plurality of grooves.

5. A pipe connecting mechanism according to claim 1, wherein said groove (22) is provided along a circumferential direction of said connecting hole (21).

6. A pipe connection according to claim 1, wherein the groove (22) is a V-groove, a U-groove or a trapezoidal groove.

7. A pipe connection according to claim 1, wherein the recess (22) is a threaded groove.

8. A pipe connection according to any of claims 1-7, wherein the pipe body (10) is a copper, aluminium or steel pipe.

9. A pipe connection according to any of claims 1-7, wherein the joint (20) is a copper joint, an aluminum joint or a steel joint.

10. A gas water heater comprising a plumbing connection as recited in any one of claims 1-9.