Radial extrusion joint with bushing

Abstract

The utility model provides a radial extrusion connector with a lining. The radial extrusion connector comprises a connector shell, an extrusion sleeve head and the lining. The bushes are connected into openings in the two ends of the connector shell, and gaps are reserved between the connector shell and the bushes. The connector shell is connected to the inner side of the extrusion sleeve head, the extrusion sleeve head extrudes the connector shell, and the pipe fitting is connected between the connector shell and the lining in an extrusion mode. A first limiting step is arranged on the outer side wall of the connector shell, the extrusion sleeve head abuts against the first limiting step, a second limiting step is arranged on the inner side wall of the connector shell, the bush abuts against the second limiting step, a connecting ring is arranged at the end, close to the first limiting step, of the extrusion sleeve head, the connecting ring is connected to the outer side of the first limiting step, and the connecting ring and the first limiting step are connected in a clamped mode. According to the utility model, the lining is arranged to support the pipeline, so that the sealing performance and firmness of connection are improved, the pipeline is prevented from being deformed due to extrusion, the pipeline is prevented from being broken, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe connectors, specifically relating to a radial extrusion joint with a bushing. Background Technology

[0002] A compression fitting is a mechanical joint that uses compression to plastically deform a connector, creating a tight connection with the pipe fitting. Compression fittings are divided into axial compression fittings and radial compression fittings. Axial compression fittings apply axial pressure using special tools. Radial compression fittings apply pressure radially and can withstand greater tensile, compressive, and shear forces. They are also relatively simple to install, requiring no complex equipment or technology, saving construction time and labor costs. However, when radial pressure is applied to a pipeline, the pipe is easily deformed, leading to cracks or even rupture in the pipe wall, affecting the pipeline's service life and reducing the safety of the pipeline system. Deformed pipes affect the internal flow cross-sectional area, increasing fluid flow resistance and affecting transport efficiency. Deformed pipes also affect the stability of the connection, causing connection failure.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a radial extrusion joint with a bushing, which improves the sealing and firmness of the connection, prevents the pipeline from deforming due to extrusion, avoids pipeline rupture, and extends the service life of the pipeline.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a radial extrusion joint with a bushing, comprising a joint housing, an extrusion head, and a bushing. The bushing is connected to the openings at both ends of the joint housing, with a gap between the joint housing and the bushing. The joint housing is connected to the inside of the extrusion head, and the extrusion head extrudes the joint housing, thus connecting the fitting between the joint housing and the bushing. A first limiting step is provided on the outer wall of the joint housing, and the extrusion head abuts against the first limiting step. A second limiting step is provided on the inner wall of the joint housing, and the bushing abuts against the second limiting step. A connecting ring is provided at the end of the extrusion head near the first limiting step, and the connecting ring is connected to the outside of the first limiting step, engaging with the first limiting step. When installing this utility model, first insert the bushings into the pipe openings, then insert the pipe through the compression sleeve, with the compression sleeve fitted over the outside of the pipe. Next, extend the pipe, along with the bushing, into the opening of the connector housing until the bushing and the second limiting step abut. Then, move the compression sleeve towards the first limiting step. During this movement, the compression sleeve compresses the connector housing, and the connector housing compresses the pipe, thus connecting the pipe between the connector housing and the bushing. When the compression sleeve and the first limiting step abut, the installation is complete. At this point, the connecting ring wraps around the outside of the first limiting step, and the connecting ring and the first limiting step engage. Repeat the above steps to connect another section of pipe. This utility model provides support for the pipe by using bushings, improving the sealing and firmness of the connection, preventing pipe deformation due to compression, preventing pipe breakage, extending pipe service life, preventing pipe deformation from affecting flow rate, ensuring pipe transport efficiency, preventing pipe deformation from affecting connection quality, and improving connection strength.

[0006] Furthermore, in the aforementioned radial extrusion joint with bushing, the inner wall of the extrusion sleeve is provided with an extrusion surface, which includes a guide surface, a transition surface, and an engagement surface. The guide surface, transition surface, and engagement surface are integrally formed sequentially in the direction away from the second limiting step, with the transition surface transitionally connecting the guide surface and the engagement surface. The cross-sectional diameter of the guide surface is larger than that of the engagement surface, and the engagement surface engages with the outer wall of the joint housing. When the extrusion sleeve extrudes the joint housing, the guide surface with the larger cross-sectional diameter extrudes the joint housing first, followed by the transition surface and engagement surface with smaller cross-sectional diameters in sequence, improving the ease of installation. Simultaneously, the engagement surface is provided as multiple continuous inclined surfaces, and the engagement surface and the joint housing are engaged to prevent the extrusion sleeve from dislodging due to vibration, thus improving the stability of the connection.

[0007] Furthermore, in the aforementioned radial extrusion joint with bushing, the outer wall of the joint housing is provided with a pressure-bearing surface, which includes a first plane, a first inclined plane, a second plane, a second inclined plane, and a third plane. The first plane, the inclined plane, the second plane, the second inclined plane, and the third plane are integrally arranged sequentially away from the first limiting step, and the cross-sectional diameter of the first plane gradually decreases towards the third plane. By designing the pressure-bearing surface as multiple continuous surfaces with gradually decreasing cross-sectional diameters, the extrusion sleeve can be installed more easily, improving installation convenience. Furthermore, by designing the pressure-bearing surface as multiple planes, the radial force and force-bearing area of ​​the pipeline are increased, preventing the extrusion sleeve from detaching, improving the connection strength between the pipeline and the joint housing, and enhancing the stability and firmness of the connection.

[0008] Furthermore, in the aforementioned radial extrusion joint with bushing, the inner wall of the joint housing is provided with grooves, which are respectively located at both ends of the joint housing. When the joint housing is deformed towards the pipeline by the extrusion sleeve, the pipeline deforms due to the extrusion and is embedded in the groove, improving the connection strength and sealing performance between the pipeline and the joint housing. At the same time, sealant can be injected into the groove to further improve the connection strength and sealing performance.

[0009] Furthermore, in the aforementioned radial extrusion joint with a bushing, a guide opening is provided at the end of the bushing away from the second limiting step. The guide opening is a sloping surface inclined towards the bushing axis. The guide opening is located on the side of the groove away from the second limiting step. Providing a guide opening on the bushing facilitates insertion of the bushing into the pipe opening, improving installation convenience. Simultaneously, positioning the guide opening on the side of the groove away from the second limiting step increases the support area of ​​the bushing, enhances its support strength, reduces deformation of the joint housing, and improves connection strength and stability.

[0010] Furthermore, in the aforementioned radial extrusion joint with bushing, two first limiting steps are provided, symmetrically arranged on both sides of the centerline of the joint housing. A notch is provided between the two first limiting steps. The notch reduces material usage and weight, thereby lowering manufacturing costs, while ensuring the strength of the joint housing.

[0011] Furthermore, in the aforementioned radial extrusion joint with bushing, a protruding ring is provided at the end of the bushing near the second limiting step, which provides a limit for the pipe. When it is necessary to insert the bushing into the pipe opening, the protruding ring can prevent the bushing from extending too far into the pipe, ensuring that the bushing can play a supporting role and preventing pipe deformation.

[0012] Furthermore, in the aforementioned radial extrusion joint with bushing, the bushing hardness is greater than that of the joint housing and the bushing itself. The high-strength bushing provides sufficient support, prevents pipe deformation, ensures connection quality, and protects the pipe opening.

[0013] Furthermore, in the aforementioned radial extrusion joint with bushing, two or more grooves are provided. Providing multiple grooves can further increase the friction between the pipe and the joint housing, thereby improving the connection strength between them.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects: The radial extrusion joint with bushing provides support for the pipeline by setting the bushing, improving the sealing and firmness of the connection, preventing pipeline deformation due to extrusion, preventing pipeline rupture, extending pipeline service life, preventing pipeline deformation from affecting pipeline flow, ensuring pipeline transportation efficiency, preventing pipeline deformation from affecting connection quality, and improving connection strength. The pressure-bearing surface is set as multiple continuous surfaces with gradually decreasing cross-sectional diameters, making the extrusion sleeve easier to install, improving installation convenience. Furthermore, setting the pressure-bearing surface as multiple planes increases the radial force and force-bearing area of ​​the pipeline, preventing the extrusion sleeve from coming out, improving the connection strength between the pipeline and the joint housing, and improving the stability and firmness of the connection. A guide opening is provided in the bushing to facilitate the bushing's insertion into the pipeline opening, improving installation convenience. At the same time, placing the guide opening on the side of the groove away from the second limiting step increases the support area of ​​the bushing, improves the support strength of the bushing, reduces deformation of the joint housing, and improves connection strength and stability. Attached Figure Description

[0015] Figure 1 This is a front view of the radial extrusion joint with bushing of this utility model;

[0016] Figure 2 for Figure 1 The sectional view shown is along line AA.

[0017] Figure 3 for Figure 2 Exploded view.

[0018] In the figure: 1. Connector housing, 11. First limiting step, 12. Second limiting step, 13. Pressure surface, 131. First plane, 132. First inclined plane, 133. Second plane, 134. Second inclined plane, 135. Third plane, 14. Groove, 15. Notch, 2. Extrusion sleeve, 3. Bushing, 21. Connecting ring, 22. Extrusion surface, 221. Guide surface, 222. Transition surface, 223. Engaging surface, 31. Guide opening, 32. Protruding ring. Detailed Implementation

[0019] Example 1

[0020] like Figure 1-2A radial extrusion fitting with a bushing is shown, comprising a fitting housing 1, an extrusion sleeve 2, and a bushing 3. The bushing 3 is connected to the openings at both ends of the fitting housing 1, with a gap between the fitting housing 1 and the bushing 3. The fitting housing 1 is connected to the inside of the extrusion sleeve 2, and the extrusion sleeve 2 extrudes the fitting housing 1, thus extruding and connecting the fitting between the fitting housing 1 and the bushing 3. The outer wall of the fitting housing 1 has a first limiting step 11, which abuts against the extrusion sleeve 2. The inner wall of the fitting housing 1 has a second limiting step 12, which abuts against the bushing 3. The end of the extrusion sleeve 2 near the first limiting step 11 has a connecting ring 21, which is connected to the outside of the first limiting step 11 and engages with the first limiting step 11.

[0021] When installing this utility model, first insert the bushings 3 into the pipe openings, then insert the pipe into the compression sleeve 2, with the compression sleeve 2 fitted over the outside of the pipe. Next, extend the pipe, along with the bushings 3, into the opening of the connector housing 1 until the bushings 3 and the second limiting step 12 abut. Then, move the compression sleeve 2 towards the first limiting step 11. During this movement, the compression sleeve 2 compresses the connector housing 1, and the connector housing 1 compresses the pipe, thus connecting the pipe between the connector housing 1 and the bushings 3. When the compression sleeve 2 and the first limiting step 11 abut, the installation is complete. At this point, the connecting ring 21 wraps around the outside of the first limiting step 11, and the connecting ring 21 and the first limiting step 11 are engaged. Then, repeat the above steps to connect another section of pipe.

[0022] like Figure 3The radial extrusion joint with bushing shown has an extrusion surface 22 on the inner wall of the extrusion sleeve 2. The extrusion surface 22 includes a guide surface 221, a transition surface 222, and an engagement surface 223. The guide surface 221, transition surface 222, and engagement surface 223 are integrally arranged sequentially away from the second limiting step 12, with the transition surface 222 transitionally connecting the guide surface 221 and the engagement surface 223. The cross-sectional diameter of the guide surface 221 is larger than the cross-sectional diameter of the engagement surface 223, which engages with the outer wall of the joint housing 1. The outer wall of the joint housing 1 has a pressure-bearing surface 13, which includes a first plane 131, a first inclined plane 132, a second plane 133, a second inclined plane 134, and a third plane 135. The first plane 131, inclined plane 132, second plane 133, second inclined plane 134, and third plane 135 are integrally arranged sequentially away from the first limiting step 11, with the cross-sectional diameter gradually decreasing from the first plane 131 to the third plane 135. The inner wall of the connector housing 1 has grooves 14, which are respectively located at both ends of the connector housing 1. The bushing 3 has a guide opening 31 at the end away from the second limiting step 12, and the guide opening 31 is an inclined surface sloping towards the axis of the bushing 3. The guide opening 31 is located on the side of the groove 14 away from the second limiting step 12. There are two first limiting steps 11, which are symmetrically located on both sides of the centerline of the connector housing 1. A notch 15 is provided between the two first limiting steps 11. The bushing 3 has a protruding ring 32 at the end near the second limiting step 12, which provides a limit for the pipe. The hardness of the bushing 3 is greater than that of the connector housing 1 and the bushing 3. There are two or more grooves 14.

[0023] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A radial extrusion joint with a bushing, characterized in that: The fitting includes a connector housing (1), a compression sleeve (2), and a bushing (3); the bushing (3) is connected to the openings at both ends of the connector housing (1), and there is a gap between the connector housing (1) and the bushing (3); the connector housing (1) is connected to the inside of the compression sleeve (2), and the compression sleeve (2) compresses the connector housing (1), and the fitting is compressed and connected between the connector housing (1) and the bushing (3); the outer wall of the connector housing (1) is provided with a first limiting step (11), the compression sleeve (2) and the first limiting step (11) abut against each other, the inner wall of the connector housing (1) is provided with a second limiting step (12), the bushing (3) and the second limiting step (12) abut against each other; the end of the compression sleeve (2) near the first limiting step (11) is provided with a connecting ring (21), the connecting ring (21) is connected to the outside of the first limiting step (11), and the connecting ring (21) and the first limiting step (11) are engaged.

2. The radial extrusion joint with bushing according to claim 1, characterized in that: The inner wall of the compression head (2) is provided with a compression surface (22), which includes a guide surface (221), a transition surface (222), and a meshing surface (223). The guide surface (221), the transition surface (222), and the meshing surface (223) are integrally arranged in sequence in the direction away from the second limiting step (12). The transition surface (222) is connected between the guide surface (221) and the meshing surface (223). The cross-sectional diameter of the guide surface (221) is larger than the cross-sectional diameter of the meshing surface (223). The meshing surface (223) meshes with the outer wall of the connector housing (1).

3. The radial extrusion joint with bushing according to claim 2, characterized in that: The outer wall of the connector housing (1) is provided with a pressure-bearing surface (13), which includes a first plane (131), a first inclined plane (132), a second plane (133), a second inclined plane (134), and a third plane (135). The first plane (131), the first inclined plane (132), the second plane (133), the second inclined plane (134), and the third plane (135) are integrally arranged in sequence in the direction away from the first limiting step (11), and the cross-sectional diameter of the first plane (131) gradually decreases in the direction of the third plane (135).

4. The radial extrusion joint with bushing according to claim 1, characterized in that: The inner wall of the connector housing (1) is provided with a groove (14), and the groove (14) is respectively provided at both ends of the connector housing (1).

5. The radial extrusion joint with bushing according to claim 4, characterized in that: The bushing (3) has a guide opening (31) at the end away from the second limiting step (12). The guide opening (31) is a slope that is inclined towards the axis of the bushing (3). The guide opening (31) is located on the side of the groove (14) away from the second limiting step (12).

6. The radial extrusion joint with bushing according to claim 1, characterized in that: There are two first limiting steps (11), which are symmetrically arranged on both sides of the center line of the connector housing (1); a notch (15) is provided between the two first limiting steps (11).

7. The radial extrusion joint with bushing according to claim 1, characterized in that: The bushing (3) has a protruding ring (32) at one end near the second limiting step (12), and the protruding ring (32) provides a limit for the pipeline.

8. The radial extrusion joint with bushing according to claim 1, characterized in that: The hardness of the bushing (3) is greater than that of the joint housing (1) and the bushing (3).

9. The radial extrusion joint with bushing according to claim 4, characterized in that: The groove (14) has two or more.

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