Pipeline piece connecting device

Abstract

The utility model discloses a pipeline piece connecting device, which can connect a first pipe and a second pipe through a joint body, a neck bush and two outer bushes which are of an integrated structure, better realizes tight connection with a first connecting pipe and a second connecting pipe, simplifies the whole structure, and facilitates the assembly of a pipeline connecting structure.

Description

Technical Field

[0001] This application relates to the field of refrigeration control technology, and particularly to a pipe fitting connection device.

Background Art

[0002] In a refrigeration system, it is usually necessary to connect the pipes of the system. When connecting the first pipe and the second pipe, a relatively large number of components are usually required to connect the first pipe and the second pipe to be connected. The number of components is relatively large, and the reliability of the pipe connection needs to be improved.

Utility Model Content

[0003] The purpose of the present utility model is to provide a pipe fitting connection device with a new structure to facilitate the quick disassembly and assembly of the pipes connected to the indoor unit. The purpose of the present utility model is to better achieve the tight connection with the first connecting pipe and the second connecting pipe, improve the connection reliability, and simplify the overall structure of the pipe fitting connection device. To achieve the above purpose, the present application provides a pipe fitting connection device that can be used for the connection and cooperation with the first connecting pipe and the second connecting pipe, including a joint body, an inner lining sleeve, a first outer lining sleeve, and a second outer lining sleeve. The joint body is an integral structure, and the joint body includes a joint head portion and a groove portion that is recessed inward from the outer surface of the joint head portion. The joint head portion includes a first joint head portion and a second joint head portion located on different sides of the groove portion. The inner lining sleeve includes an inner lining sleeve fitting portion, a first texture portion, and a second texture portion. The inner lining sleeve fitting portion is in tight fit / or clearance fit with the groove portion. The inner side of the first connecting pipe is in press fit with the first texture portion. The outer side of the first connecting pipe abuts against the first outer lining sleeve. The outer side of the first outer lining sleeve away from the first connecting pipe is in press fit with the first joint head portion;

[0004] The inner side of the second connecting pipe is in press fit with the second texture portion. The outer side of the second connecting pipe abuts against the second outer lining sleeve. The outer side of the second outer lining sleeve away from the second connecting pipe is in press fit with the second joint head portion.

[0005] The present utility model connects the first pipe and the second pipe through an integral joint body, an inner lining sleeve, and two outer lining sleeves, better achieving the tight connection with the first connecting pipe and the second connecting pipe, improving the connection reliability of the connecting pipes, simplifying the overall structure, and facilitating the assembly of the pipe connection structure.

Description of the Drawings

[0006] Figure 1 It is a schematic cross-sectional view of the pipe fitting connection device provided by the present application to be installed;

[0007] Figure 2 It is a schematic cross-sectional view of the pipe fitting connection device provided by the present application that has been installed;

[0008] Figure 3 Structural schematic diagram of the joint body of the pipeline fitting connection device;

[0009] Figure 4 Structural schematic diagram of the inner lining sleeve of the pipeline fitting connection device;

[0010] Figure 5 Three-dimensional structural schematic diagram of the outer lining sleeve of the pipeline fitting connection device

[0011]

Reference numerals

[0012] Joint body 10, groove part 11, inner wall 111, first limiting part 112, second limiting part 113, joint head part 12, first joint head 121, first guiding part 1211, first matching part 1212, limiting part 1214, second joint head 122

[0013] Inner lining sleeve 20, inner lining sleeve matching part 21, first part 22, first texture part 221, second part 23, second texture part 231

[0014] First outer lining sleeve 31, cylindrical part 312, second matching part 3121, conical surface part 3122, groove part 3123, abutting part 313, second outer lining sleeve 32:

[0015] First connecting pipe 41, abutting top part 411, connecting pipe matching part 412

[0016] Second connecting pipe 42

Detailed implementation manners

[0017] In order to enable those skilled in the art to better understand the technical solutions provided by this application, the technical solutions of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] As Figures 1-5As shown in the figure, a pipeline fitting connection device is used for connection and cooperation with a first connecting pipe 41 and a second connecting pipe 42. It includes a joint body 10, an inner lining sleeve 20, a first outer lining sleeve 31, and a second outer lining sleeve 32. The joint body 10 is an integral structure. The inner lining sleeve 20 can be an integral structure and is at least partially located inside the joint body 10. The joint body 10 includes a joint head portion 12 and a groove portion 11 that is recessed inward from the outer surface of the joint head portion 12. The joint body 10 includes a first joint head portion 121 and a second joint head portion 122. The first joint head portion 121 and the second joint head portion 122 are located on different sides of the groove portion 11. The first joint head and the second joint head can adopt an equal-diameter structure design. The groove portion 11 has an inner wall 111. The inner lining sleeve 20 has an inner lining sleeve fitting portion 21. The inner lining sleeve fitting portion 21 is in tight fit or clearance fit with the inner wall 111. The groove portion 11 also has a first limiting portion 112 and a second limiting portion 113 located on different sides of the inner wall 111. The first joint head and the second joint head are symmetrically arranged along the central axis of the groove portion 11. In this embodiment, the structure of the first joint head is taken as an example for illustration. It should be noted that the second joint head has the same structure as the first joint head. The first joint head portion 121 includes a first guiding portion 1211, a first fitting portion 1212, and a first abutting portion. The first guiding portion 1211 is located between the first fitting portion 1212 and the first abutting portion. The wall thickness of the first joint head corresponding to the first abutting portion is greater than the wall thickness of the first joint head corresponding to the first fitting portion 1212. The cross-sectional area of the first guiding portion 1211 on the side close to the first fitting portion 1212 is greater than the cross-sectional area of the first guiding portion 1211 on the side far from the first fitting portion 1212, so as to play a guiding role when the first outer lining sleeve 31 is installed. The first outer lining sleeve 31 includes a cylindrical portion 312 and a abutting portion 313 that protrudes radially approximately from the end of the cylindrical portion 312. The abutting portion 313 can cooperate with an external operating tool to enable the first outer lining sleeve 31 to achieve cooperation with the joint body 10 and the inner lining sleeve 20 respectively to clamp the first connecting pipe 41. The cylindrical portion 312 includes a second fitting portion 3121 and a tapered surface portion 3122. The tapered surface portion 3122 is in guiding cooperation with the first guiding portion 1211. The first fitting portion 1212 is in tight fit with the second fitting portion 3121. The inner lining sleeve 20 also includes a first portion 22 and a second portion 23 located on both sides of the inner lining sleeve fitting portion 21. The first portion 22 is provided with a first texture portion 221, and the second portion 23 is provided with a second texture portion 231. Both the first texture portion 221 and the second texture portion 231 are continuous texture designs;After the joint body 10 and the inner lining sleeve 20 are installed, an installation gap S is formed between the first joint part 121 and the first part 22, and an installation gap S is formed between the second joint part 122 and the second part 23. The first connecting pipe 41 and the second connecting pipe 42 are pre-placed in the installation gaps on both sides respectively, so that the abutting top part 411 of the first connecting pipe 41 abuts against the first limiting part 112, and the abutting top part of the second connecting pipe 42 abuts against the second limiting part 113. Then, the first outer lining sleeve 31 and the second outer lining sleeve 32 are placed on both sides of the joint body 10. By means of an external operating tool, the abutting parts 313 of the first outer lining sleeve 31 and the abutting parts of the second outer lining sleeve 32 are respectively abutted. The first outer lining sleeve 31 is installed between the first joint part and the first connecting pipe 41 through the cooperation between the first guiding part 1211 and the first matching part 1212. The cylindrical part 312 of the first outer lining sleeve 31 is tightly fitted with the first abutting part. At the same time, the cylindrical part 312 of the first outer lining sleeve 31 clamps the first connecting pipe 41 through the cooperation with the first part 22 of the inner lining sleeve 20. The first thread part 221 is in extrusion fit with one side of the first connecting pipe 41. Specifically, at least part of the first thread part 221 is extruded into the pipe fitting part of the first connecting pipe 41. The other side of the first connecting pipe 41 abuts against the cylindrical part 312 of the first outer lining sleeve 31. The outer side of the first outer lining sleeve 31 away from the first connecting pipe 41 abuts against the first abutting part. At the same time, the second thread part 231 is in extrusion fit with one side of the second connecting pipe 42. Specifically, at least part of the second thread part 231 is extruded into the pipe fitting part of the second connecting pipe 42. The other side of the second connecting pipe 42 abuts against the cylindrical part of the second outer lining sleeve 32, and the outer side of the second outer lining sleeve 32 away from the second connecting pipe 42 abuts against the second joint part. The first pipe and the second pipe are connected by the joint body, the inner lining sleeve and the two outer lining sleeves of the integral structure of the present utility model, which is beneficial to better realize the tight connection with the first connecting pipe and the second connecting pipe. The overall structure is simplified, and the assembly of the pipeline connection structure is convenient. The pipeline component connection device structure provided by the present application, the joint body structure integrates the first joint part and the second joint part. Through the extrusion fit between the first joint part, the second joint part and the first outer lining sleeve, the second outer lining sleeve, and the cooperation between the first outer lining sleeve, the second outer lining sleeve and the inner lining sleeve to clamp the first connecting pipe and the second connecting pipe, better realize the tight connection with the first connecting pipe and the second connecting pipe, the number of parts is small, the overall structure is simplified, and the assembly of the pipeline connection structure is convenient.;

[0019] Further, in order to better hold the first connecting pipe 41 and the second connecting pipe 42, the first outer lining sleeve 31 and the second outer lining sleeve 32 are also provided with long strip-shaped groove parts 3123. Taking the first outer lining sleeve 31 as an example, the long strip-shaped groove parts 3123 are designed along the circumferential direction of the first outer lining sleeve. One side of the groove part 3123 penetrates through the end face of the first outer lining sleeve, and the other side extends to the abutting part 313;

[0020] On the basis that the first outer bushing 31, the second outer bushing 32 and the inner bushing 20 are made of the same material, the material hardness of the joint body 10 is greater than that of the first outer bushing 31, the second outer bushing 32 and the inner bushing 20, and the material hardness of the first outer bushing 31, the second outer bushing 32 and the inner bushing 20 is greater than that of the first connecting pipe and the second connecting pipe, so as to enable the first outer bushing and the second outer bushing to deform better and cooperate with the inner bushing to tightly hold and connect the first connecting pipe and the second connecting pipe, better realize the tight connection with the first connecting pipe and the second connecting pipe, and improve the connection reliability with the connecting pipe.

[0021] The present application provides a pipeline component connection device. When it is subsequently applied to an installation and use environment that requires connection of refrigerant, the pipeline component connection device can be used for connection and cooperation with the first connecting pipe and the second connecting pipe. The pipeline component connection device includes a joint body, an inner bushing, a first outer bushing, and a second outer bushing. The joint body is an integral structure. The joint body includes a joint head portion and a groove portion that is recessed inward from the outer surface of the joint head portion. The joint head portion includes a first joint head portion and a second joint head portion located on different sides of the groove portion. The inner bushing includes an inner bushing fitting portion, a first texture portion, and a second texture portion. The inner bushing fitting portion is in tight fit / or clearance fit with the groove portion. The inner side of the first connecting pipe is in extrusion fit with the first texture portion. The outer side of the first connecting pipe abuts against the first outer bushing. The outer side of the first outer bushing away from the first connecting pipe is in extrusion fit with the first joint head portion;

[0022] The inner side of the second connecting pipe is in extrusion fit with the second texture portion. The outer side of the second connecting pipe abuts against the second outer bushing. The outer side of the second outer bushing away from the second connecting pipe is in extrusion fit with the second joint head portion.

[0023] In the present utility model, the first pipe and the second pipe are connected through the integral joint body, the inner bushing and the two outer bushings, better realizing the tight connection with the first connecting pipe and the second connecting pipe and improving the connection reliability of the connecting pipe. The overall structure is simplified, facilitating the assembly of the pipeline connection structure.

[0024] In the present utility model, specific embodiments are described. However, it is obvious that various modifications and transformations can still be made without departing from the spirit and scope of the present utility model. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A pipeline fitting connection device, characterized in that, It can be used for connection and cooperation with the first adapter pipe and the second adapter pipe, and includes a joint body, an inner lining sleeve, a first outer lining sleeve, and a second outer lining sleeve. The joint body is an integral structure. The joint body includes a joint head and a groove portion that is recessed inward from the outer surface of the joint head. The joint head includes a first joint head and a second joint head located on different sides of the groove portion. The inner lining sleeve includes an inner lining sleeve fitting portion, a first texture portion, and a second texture portion. The inner lining sleeve fitting portion is in tight fit or clearance fit with the groove portion. The inner side of the first adapter pipe is in extrusion fit with the first texture portion. The outer side of the first adapter pipe abuts against the first outer lining sleeve. The outer side of the first outer lining sleeve away from the first adapter pipe is in extrusion fit with the first joint head; The inner side of the second adapter pipe is in extrusion fit with the second texture portion. The outer side of the second adapter pipe abuts against the second outer lining sleeve. The outer side of the second outer lining sleeve away from the second adapter pipe is in extrusion fit with the second joint head.

2. The pipeline component connection device according to claim 1, characterized in that, The first joint head includes a first guiding portion, a first fitting portion, and a first abutting portion. The first guiding portion is located between the first abutting portion and the first fitting portion. The cross-sectional area of the first guiding portion on the side close to the first fitting portion is larger than the cross-sectional area of the first guiding portion on the side away from the first fitting portion.

3. The pipe fitting connection device according to claim 2, characterized in that, The first outer lining sleeve includes a cylindrical portion and a abutting portion protruding from the cylindrical portion. The cylindrical portion includes a conical surface portion and a second fitting portion. The first guiding portion is in guiding fit with the conical surface portion. The first fitting portion is in tight fit with the second fitting portion.

4. The pipeline fitting connection device according to claim 3, characterized in that, The first outer lining sleeve is further provided with strip-shaped groove portions. A plurality of the groove portions are arranged circumferentially on the first outer lining sleeve. One side of the groove portion penetrates through the end face of the first outer lining sleeve, and the other side extends to the abutting portion.

5. The pipeline component connection device according to any one of claims 1-4, characterized in that, It is defined that the inner lining sleeve, the first outer lining sleeve, and the outer lining sleeve are made of the same material. Among them, the hardness of the joint body is greater than the hardness of the inner lining sleeve, the first outer lining sleeve, and the second outer lining sleeve, and the hardness of the inner lining sleeve, the first outer lining sleeve, and the second outer lining sleeve is greater than the hardness of the first adapter pipe and the second adapter pipe.

6. The pipeline component connection device according to any one of claims 1-4, characterized in that, The groove portion has a first limiting portion and a second limiting portion. The end of the cylindrical portion of the first outer lining sleeve abuts against the first limiting portion. The end of the cylindrical portion of the second outer lining sleeve abuts against the second limiting portion.

7. The pipeline component connection device according to any one of claims 1-4, characterized in that, The groove portion has a first limiting portion and a second limiting portion. The abutting top of the first adapter pipe abuts against the first limiting portion. The abutting top of the second adapter pipe abuts against the second limiting portion.

8. The pipe fitting connection device according to claim 7, characterized in that At least part of the first texture portion is extruded into the pipe fitting portion of the first adapter pipe. At least part of the second texture portion is extruded into the pipe fitting portion of the second adapter pipe.

9. The pipeline component connection device according to any one of claims 1-4, characterized in that, The first joint head and the second joint head are arranged with the same diameter.

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