Pipeline piece connecting device

Abstract

The utility model discloses a pipeline connecting piece which comprises a connector body, a lining, a first pressing ring, a second pressing ring, a first pipe and a second pipe, the connector body comprises a body part and a deformation part, the deformation part comprises a first deformation part and a second deformation part, the body part is matched with the lining, and the first deformation part is matched with the lining. At least part of the first pipe is located between the lining and the first deformation part, at least part of the second pipe is located between the lining and the second deformation part, the first pressing ring is matched with the outer edge of the first deformation part in an abutting mode, and the second pressing ring is matched with the outer edge of the second deformation part in an abutting mode. The lining is of an integrated structure. According to at least one embodiment, the first pipe and the second pipe are connected through the connector body, the lining and the two pressing rings, the lining is of an integrated structure, the supporting effect can be provided during installation, and assembling of the pipeline connecting structure is facilitated.

Description

[Technical field]

[0001] The present application relates to the field of refrigeration control technology, and in particular to a pipe fitting connection device. [Background technology]

[0002] In a refrigeration system, it is usually necessary to connect the system pipes. When connecting the first pipe and the second pipe, the first pipe and the second pipe to be connected are usually overlapped and then flame welded. In this process, open flames and solder are required, and the processing is relatively complicated. [Utility Model Content]

[0003] The utility model aims to provide a pipeline connection device with a new structure, so as to facilitate the rapid disassembly and assembly of the pipeline connected with the indoor unit, and to eliminate the use of open flames and solder.

[0004] In order to achieve the above-mentioned purpose, at least one embodiment of the present utility model provides a pipe fitting connection device, including a joint body, a bushing, a first pressure ring, a second pressure ring, a first tube and a second tube, the joint body includes a main body portion and a deformation portion, the deformation portion includes a first deformation portion and a second deformation portion, the main body portion cooperates with the bushing, at least a portion of the first tube is located between the bushing and the first deformation portion, at least a portion of the second tube is located between the bushing and the second deformation portion, the first pressure ring is abutted against the outer edge of the first deformation portion, the second pressure ring is abutted against the outer edge of the second deformation portion, and the bushing is an integral structure.

[0005] In at least one embodiment of the utility model, the first pipe and the second pipe are connected by a joint body, a bushing and two compression rings. The bushing is an integrated structure, which is beneficial for providing support during installation and facilitating the assembly of the pipeline connection structure.

Brief Description of the Drawings

[0006] Figure 1 A cross-sectional schematic diagram of a pipe fitting connection device according to an embodiment of the present application;

[0007] Figure 2 for Figure 1 A schematic cross-sectional view of a bushing of a pipe fitting connection device;

[0008] Figure 3 It is a structural schematic diagram of a joint body of a pipe fitting connection device;

[0009] Figure 4 It is a schematic structural diagram of the first pressure ring of the pipeline fitting connecting device. [Specific implementation method]

[0010] In order to enable those skilled in the art to better understand the technical solution provided by the present application, the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] like Figure 1 As shown, a pipe connector includes a joint body 1, a bushing 2, a first pressure ring 31, a second pressure ring 32, a first tube 41, and a second tube 42. The bushing 2 is used to connect the first tube 41 and the second tube 42 to be connected;

[0012] The joint body 1 includes a main body portion 11 and a deformation portion 12, wherein the deformation portion 12 includes a first deformation portion 121 and a second deformation portion 122, wherein the first deformation portion 121 is located on one side of the main body portion 11, and the second deformation portion 122 is located on the other side of the main body portion 11. The joint body 1 can adopt an integrated structure, wherein the main body portion 11 includes a first matching portion 111, wherein the first matching portion 111 is located on the inner edge of the main body portion and is used for fixed connection with the bushing 2 described below. The inner edge of the first deformation portion 121 includes a second matching portion 1211, and the inner edge of the second deformation portion 122 includes a third matching portion 1221, wherein the second matching portion 1211 and the third matching portion 1221 can adopt the same inner diameter, and the inner diameters of the second matching portion 1211 and the third matching portion 1221 are set to be smaller than the inner diameter of the first matching portion 111. In this way, a first step portion 12111 is formed between the first matching portion 111 and the second matching portion 1211, and a second step portion 12211 is formed between the first matching portion 111 and the third matching portion 1221, wherein the first step portion 12111 is used for abutting and positioning the first tube 41, and the second step portion 12211 is used for abutting and positioning the second tube 42. The first matching portion 111, the second matching portion 1211, and the third matching portion 1221 respectively form at least part of the inner wall of the joint body 1.

[0013] The outer edge of the first deformation portion 121 is provided with a first protrusion 131, and the outer edge of the second deformation portion 122 is provided with a second protrusion 132, wherein the first protrusion 131 is used to abut and cooperate with the first pressure ring 31 described below, and the second protrusion 132 is used to abut and cooperate with the second pressure ring 32 described below.

[0014] Please refer to Figure 2 , Figure 2It is a schematic diagram of the bushing structure provided by an embodiment of the present application. The bushing 2 is an integrally formed structure, which is generally tubular. The outer edge of the bushing 2 includes a bushing first matching portion 21, which is generally located in the middle of the outer edge of the bushing 2. The outer diameter of the bushing first matching portion 21 is adapted to the inner diameter of the first matching portion 111 of the joint body. Specifically, the bushing first matching portion 21 and the first matching portion 111 of the joint body can be set to be a tight fit or a clearance fit. When the joint assembly is installed, the bushing 2 can be installed into the inner wall of the joint body 1, and can be positioned by tooling so that the bushing 2 and the joint body 1 are tightly fitted or clearance fit and the relative position is kept fixed.

[0015] The outer edge surface of the bushing 2 is provided with a bushing second matching portion 231 and a bushing third matching portion 232, wherein the bushing second matching portion 231 is located on one side of the bushing first matching portion 21, and the bushing third matching portion 232 is located on the other side of the bushing first matching portion 21. As a specific embodiment, the outer diameter of the bushing second matching portion 231 and the outer diameter of the bushing third matching portion 232 can be set to be substantially the same, and both are smaller than the outer diameter of the bushing first matching portion 21. The bushing second matching portion 231 is used to match with the first tube 41, and the bushing third matching portion 232 is used to match with the second tube 42.

[0016] The surfaces of the second matching part 231 and the third matching part 232 of the bushing can also be provided with grooves. In this embodiment, the surface of the second matching part 231 of the bushing is provided with a first groove 221, and the first groove 221 is recessed from the surface of the second matching part 231 of the bushing. The first groove 221 can be an annular groove structure opened on the surface of the second matching part 231 of the bushing, or a discontinuous annular recessed structure. Similarly, the surface of the third matching part 232 of the bushing can also be provided with a groove, and a second groove 222 with the same structure as the first groove 221 can be adopted. The second groove 222 can be an annular groove structure or a discontinuous annular recessed structure. The arrangement of the first groove and the second groove is conducive to the assembly of the pipeline connector, so that at least part of the first pipe can be located in the first groove under the extrusion of the first pressure ring, and at least part of the second pipe can be located in the second groove under the extrusion of the second pressure ring, so that the fit between the first pipe and the bushing is tighter and not easy to fall off.

[0017] The bushing 2 is connected to one end of the first tube 41 and the second tube 42 respectively. Specifically, the first tube 41 is sleeved on the outer edge surface of the bushing second matching portion 231, and the second tube 42 is sleeved on the outer edge surface of the bushing third matching portion 232. At least part of the inner edge 411 of the first tube 41 abuts against the bushing second matching portion 231, and at least part of the inner edge 421 of the second tube 42 abuts against the bushing third matching portion 232. During assembly, the bushing 2 can be first installed into the inner wall of the joint body 1, and can be positioned by tooling so that the bushing 2 and the joint body 1 are tightly fitted or loosely fitted and the relative position is kept fixed. At this time, a generally annular space is formed between the second fitting portion 1211 of the joint body and the second fitting portion 231 of the bushing 2, and the distance between the second fitting portion 1211 of the joint body and the second fitting portion 231 of the bushing is adapted to the wall thickness of the first tube 41. The first tube 41 can be inserted between the second fitting portion 1211 of the joint body and the second fitting portion 231 of the bushing, and then fastened and connected by the first pressure ring 31 described below. Similarly, the assembly of the second tube 42 can be fixed in the same assembly method as the first tube, which will not be repeated here.

[0018] Please refer to Figure 4 , Figure 4 It is a schematic diagram of a compression ring structure provided by an embodiment of the present application. It should be noted that the first compression ring and the second compression ring may adopt a symmetrical structure, so the following description will be made by taking the first compression ring 31 as an example.

[0019] The first compression ring 31 is generally tubular, and the inner wall of the first compression ring includes a first abutment portion 311, a first extrusion portion 312, and a first guide portion 313, wherein the inner diameter of the first guide portion 313 gradually increases in the direction away from the first extrusion portion 312, so that when assembling the compression ring, the first guide portion 313 can be used to guide the assembly, thereby conveniently installing the first compression ring into the joint body. The inner diameter of the first extrusion portion 312 can be set to be equal diameter or unequal diameter. In the case of unequal diameter, the minimum inner diameter of the first extrusion portion 312 is smaller than the maximum outer diameter of the first protrusion 131 of the joint body, so that when assembling the first compression ring, the first extrusion portion 312 can at least apply a component force toward the center axis direction to the first protrusion 131, thereby improving the matching strength between the first tube 41 and the bushing 2 and the joint body 1. The first guide portion 313 is located on one side of the first extrusion portion 312, and the first abutment portion 311 is located on the other side of the first extrusion portion 312, wherein the inner diameter of the first abutment portion 311 on the side close to the first extrusion portion 312 is larger than the inner diameter on the side away from the first extrusion portion 312, and the inner diameter of the first abutment portion 311 on the side away from the first extrusion portion 312 is at least partially smaller than the outer diameter of the first deformation portion 121 of the joint body. In this way, when the first pressure ring is assembled, the first abutment portion 311 will press against the outer edge surface of the first deformation portion 121 and embed into at least part of the surface of the first deformation portion 121, thereby further improving the fitting strength between the first tube and the joint body and the bushing.

[0020] Combine the following Figure 1 , describes the structure and assembly process of the pipe connector provided by the utility model. Figure 1, which is a schematic diagram of the structure of the utility model in use state. During assembly, the bushing 2 can be first installed into the inner wall of the joint body 1, and can be positioned by tooling so that the bushing 2 and the joint body 1 are tightly fitted or loosely fitted and the relative position is kept fixed. At this time, a generally annular space is formed between the second matching portion 1211 of the joint body and the second matching portion 231 of the bushing 2, and the distance between the second matching portion 1211 of the joint body and the second matching portion 231 of the bushing is adapted to the wall thickness of the first tube 41. The first pressure ring 31 can be pre-set on the outer periphery of the first tube 41. At this time, the first tube 41 can be inserted between the second matching portion 1211 of the joint body and the second matching portion 231 of the bushing, and the end of the first tube 41 can be abutted against the first step portion 12111 to achieve the positioning of the first tube 41. Then the first pressing ring 31 is pressed in the direction toward the joint body. Through the guiding effect of the first guide part 313, the first pressing ring 31 can smoothly achieve the cooperation with the first deformation part 121. During the pressing process of the first pressing ring, the first extrusion part 312 can squeeze the first protrusion 131, which will be able to apply a component force toward the central axis direction to the first tube 41, and make at least part of the first tube be located in the first groove part 222, thereby further increasing the cooperation effect between the first tube and the joint body and the bushing. At the same time, after the first pressing ring is assembled in place, the first abutment part 311 can abut against the first deformation part 121, and can be embedded in at least part of the surface of the first deformation part 121, further improving the cooperation strength between the first tube and the joint body and the bushing. Until the guide parts 331 and 332 abut against the joint body, in this solution, since the bushing 2 adopts an integrally formed structure, it plays a good supporting role and can greatly enhance the cooperation strength of the two pipelines.

[0021] The present invention has been described by way of specific embodiments. However, it is apparent that various modifications and changes may be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A pipe fitting connection device, characterized in that: The joint body (1) comprises a joint body (1), a bushing (2), a first pressure ring (31), a second pressure ring (32), a first tube (41) and a second tube (42); the joint body (1) comprises a main body (11) and a deformation part (12); the deformation part (12) comprises a first deformation part (121) and a second deformation part (122); the main body (11) cooperates with the bushing (2); at least a portion of the first tube (41) is located between the bushing (2) and the first deformation part (121); at least a portion of the second tube (42) is located between the bushing (2) and the second deformation part (122); the first pressure ring (31) is in abutment with the outer edge of the first deformation part (121); the second pressure ring (32) is in abutment with the outer edge of the second deformation part (122); and the bushing (2) is an integral structure.

2. The pipe fitting connection device according to claim 1, characterized in that: The bushing (2) comprises a bushing first matching portion (21), the body portion (11) comprises a first matching portion (111), and the bushing first matching portion (21) and the first matching portion (111) are tightly matched or loosely matched.

3. The pipe fitting connection device according to claim 2, characterized in that: The joint body is an integral structure, and the deformation portion (12) comprises a first deformation portion (121) and a second deformation portion (122), wherein the first deformation portion (121) is located on one side of the main body portion (11), and the second deformation portion (122) is located on the other side of the main body portion (11).

4. The pipe fitting connection device according to claim 3, characterized in that: The inner edge of the first deformation portion (121) includes a second matching portion (1211), the inner edge of the second deformation portion (122) includes a third matching portion (1221), the inner diameter of the second matching portion (1211) is smaller than the inner diameter of the first matching portion (111), a first step portion (12111) is provided between the first matching portion (111) and the second matching portion (1211), the inner diameter of the third matching portion (1221) is smaller than the inner diameter of the first matching portion (111), and a second step portion (12211) is provided between the third matching portion (1221) and the first matching portion (111).

5. The pipe fitting connection device according to claim 4, characterized in that: The outer edge of the first deformation portion (121) is provided with a first protrusion (131), and the outer edge of the second deformation portion (122) is provided with a second protrusion (132).

6. The pipe fitting connection device according to claim 2, characterized in that: The outer edge of the bushing (2) is provided with a bushing second matching portion (231) and a bushing third matching portion (232), the bushing second matching portion (231) is located on one side of the bushing first matching portion (21), and the bushing third matching portion (232) is located on the other side of the bushing first matching portion (21).

7. The pipe fitting connection device according to claim 6, characterized in that: The surface of the second matching portion (231) of the bushing is provided with a first groove portion (221), and the first groove portion (221) is recessed from the surface of the second matching portion (231) of the bushing; the surface of the third matching portion (232) of the bushing is provided with a second groove portion (222), and the second groove portion (222) is recessed from the surface of the third matching portion (232) of the bushing.

8. The pipe fitting connection device according to claim 1, characterized in that: The first pressure ring (31) comprises a first abutment portion (311), a first extrusion portion (312), and a first guide portion (313); the inner diameter of the first guide portion (313) gradually increases in a direction away from the extrusion portion (312); and a first protrusion (131) is provided on the outer edge of the first deformation portion (121).

9. The pipe fitting connection device according to claim 8, characterized in that: The first guide portion (313) is located on one side of the first extrusion portion (312), the first abutment portion (311) is located on the other side of the first extrusion portion (312), and the minimum inner diameter of the first extrusion portion (312) is smaller than the maximum outer diameter of the first protrusion (131).

10. The pipe fitting connection device according to claim 9, characterized in that: The inner diameter of the first abutting portion (311) at a side away from the first pressing portion (312) is at least partially smaller than the outer diameter of the first deforming portion (121).

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