CN215918750U

CN215918750U - Bent pipe protective sleeve and bent pipe protective assembly

Info

Publication number: CN215918750U
Application number: CN202122485636.8U
Authority: CN
Inventors: 窦宝宁; 赵琰巍
Original assignee: Estar Changshu Automotive Air Conditioning System Co ltd
Current assignee: Estar Changshu Automotive Air Conditioning System Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-03-01
Anticipated expiration: 2031-10-15

Abstract

The utility model provides a bent pipe protective sleeve and a bending protection assembly, which relate to the technical field of air conditioner pipelines. According to the utility model, the pier head part and the pipe body are bent synchronously, so that the phenomenon that the pier head part collides with the main clamping die due to stress springback to cause scratches due to the fact that the clamping part is too short is avoided.

Description

Bent pipe protective sleeve and bent pipe protective assembly

Technical Field

The utility model relates to the technical field of air conditioner pipelines, in particular to a bent pipe protective sleeve and a bent pipe protective assembly.

Background

With the continuous development of modernization, the development of air conditioners is also continuously improved, and the requirement on the service life of an air conditioner pipeline is also continuously enhanced. When the first bending distance pier head position of air conditioner pipeline is less than 10mm, main die that presss from both sides can interfere the pier head, causes the pier head to press from both sides and hinders to reduce life-span, so need improve.

Through the search discovery of prior art patent literature, chinese utility model patent publication No. CN204217053U discloses a pipe protective sheath, belongs to the TV set part field, improves the firm degree of installation and security performance to be suitable for the practicality more, and have the industrial value of utilizing. A foot sleeve is arranged at the end opening of the bent pipe, the foot sleeve is a pipe body with a hollow structure, and an expansion plug is arranged in the center of the foot sleeve; a convex edge is arranged at the end opening of the foot sleeve, and the height of the convex edge is greater than the thickness of the end opening of the bent pipe; the inclination angle of the foot sleeve port is the same as that of the bent pipe port; the expansion plug is of a frustum-shaped structure. The utility model solves the defect that the pier head is damaged in the bending process of the pipe through the bent pipe protective sleeve. Therefore, the method disclosed in the document and the utility model belong to different inventive concepts.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a bent pipe protective sleeve and a bending protection assembly.

The elbow protecting sleeve comprises a protecting sleeve and a supporting core rod, wherein the supporting core rod is connected inside the protecting sleeve, an upper groove and a lower groove are formed in the protecting sleeve, the top of the upper groove and the top of the supporting core rod are connected with a pipe in a matched mode, and the lower groove is connected with the bottom of the supporting core rod.

In some embodiments, the upper groove comprises a first groove and a second groove, the first groove connects to the raised ring on the tubing, and the second groove connects to the tubing.

In some embodiments, the diameter of the first groove is greater than the diameter of the second groove.

In some embodiments, the lower grooves include a third groove located at the distal end of the support mandrel and a fourth groove connecting the third groove.

In some embodiments, the third groove has a smaller diameter than the fourth groove.

In some embodiments, the first groove and the second groove, and the third groove and the fourth groove are stepped.

In some embodiments, the bottom of the support core rod is provided with an inner groove, and the inner groove is communicated with the third groove.

In some embodiments, the diameter of the third groove is equal to or greater than the diameter of the inner groove.

The utility model also provides a bending protection assembly which comprises a bent pipe protection sleeve.

In some embodiments, the elbow protecting sleeve is connected with the pier head part of the pipe, is connected with the joint of the pipe and the elbow protecting sleeve through the main clamping die, and is bent through the bending die.

Compared with the prior art, the utility model has the following beneficial effects:

(1) according to the utility model, the pier head part and the pipe body of the pipe are bent synchronously, so that the phenomenon that the pier head part is scratched due to the fact that the pier head part collides with the main clamping die due to stress springback because the clamping part is too short is avoided;

(2) the utility model has simple manufacture and low cost, and prolongs the service life of the pipeline.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection of the present invention to a pipe;

fig. 3 is a schematic diagram of the application of the present invention.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

Example 1

The elbow protecting sleeve provided by the utility model comprises a protecting sleeve 1 and a supporting core rod 2, wherein the supporting core rod 2 is connected inside the protecting sleeve 1, an upper groove 11 and a lower groove 12 are arranged on the protecting sleeve 1, the top of the upper groove 11 and the top of the supporting core rod 2 are matched and connected with a pipe, and the lower groove 12 is connected with the bottom of the supporting core rod 2. Preferably, the bottom of the supporting mandrel 2 is provided with an inner groove 21.

The upper groove 11 comprises a first groove 111 and a second groove 112, the first groove 111 is connected with the second groove 112, the first groove 111 is connected with a raised ring on the pipe, and the second groove 112 is connected with the pipe 3. The lower groove 12 comprises a third groove 113 and a fourth groove 114, the third groove 113 being located at the end of the support mandrel 2, the fourth groove 114 connecting the third groove 113. Preferably, the first groove 111 and the second groove 112, and the third groove 113 and the fourth groove 114 are stepped.

More specifically, the diameter of the first groove 111 is larger than the diameter of the second groove 112. The third groove 113 has a smaller diameter than the fourth groove 114. The diameter of the third groove 113 is equal to or larger than the diameter of the inner groove 21. The inner groove 21 communicates with the third groove 113.

Example 2

This embodiment 2 is to embodiment 1's an application, and the during operation is bent to tubular product through the return bend protective sheath and is protected, avoids the tubular product pier nose to receive the damage. Specifically, the method comprises the following steps:

the utility model also provides a bending protection assembly which comprises a bent pipe protection sleeve. The pier head part of the bent pipe protective sleeve connecting pipe 3 is connected to the joint of the pipe 3 and the bent pipe protective sleeve through the main clamping die 4, and the pipe 3 is bent through the bending die 5.

More specifically: sleeving the pier head part of the pipe 3 into the second groove 112 until the convex ring on the pipe 3 is clamped and embedded into the first groove 111, and meanwhile, embedding the top of the support core rod 2 into the pipe 3 for fixing, so that the pier head part of the pipe 3 can be wrapped by the bent pipe protective sleeve; the main clamping die 4 is clamped at the joint of the pipe 3 and the elbow protective sleeve, the tail end of the pipe 3 is fixed through the sliding plate 6, and the pipe 3 is bent and formed through the bending die 5 under the action of external force. In the process, the pier head part and the pipe body of the pipe 3 are bent synchronously, so that the phenomenon that the pier head part is scratched due to the fact that the pier head part rebounds due to stress and collides with the main clamping die 4 due to the fact that the clamping part is too short is avoided.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The utility model provides an elbow protective sheath, its characterized in that includes protective sleeve (1) and support plug (2), support plug (2) connect in inside protective sleeve (1), be equipped with upper groove (11) and low groove (12) on protective sleeve (1), upper groove (11) with tubular product (3) are connected in the cooperation of the top of supporting plug (2), low groove (12) are connected the bottom of supporting plug (2).

2. An elbow protection sleeve according to claim 1, characterized in that the upper groove (11) comprises a first groove (111) and a second groove (112), the first groove (111) connecting the second groove (112), the first groove (111) connecting a raised ring on the tubing (3), the second groove (112) connecting the tubing (3).

3. An elbow boot according to claim 2, characterised in that the diameter of the first groove (111) is larger than the diameter of the second groove (112).

4. An elbow protection sleeve according to claim 3, characterized in that the lower groove (12) comprises a third groove (113) and a fourth groove (114), the third groove (113) being located at the end of the support mandrel (2), the fourth groove (114) connecting the third groove (113).

5. An elbow protection sleeve according to claim 4, characterised in that the third groove (113) has a smaller diameter than the fourth groove (114).

6. Elbow protection sleeve according to claim 5, characterised in that between the first groove (111) and the second groove (112) and between the third groove (113) and the fourth groove (114) is stepped.

7. Elbow protection sleeve according to claim 6, characterized in that the bottom of the support mandrel (2) is provided with an inner groove (21), the inner groove (21) communicating with the third groove (113).

8. An elbow protection sleeve according to claim 7, characterised in that the diameter of the third groove (113) is equal to or greater than the diameter of the inner groove (21).

9. A bend protection assembly comprising the elbow boot of any one of claims 1-8.

10. The bend protection assembly of claim 9, wherein the elbow protection boot is connected to a pier portion of a tubing (3), connected to a junction of the tubing (3) and the elbow protection boot by a main clamp die (4), and the tubing (3) is bent by a bending die (5).