Pipeline butt joint

Abstract

The utility model relates to the field of pipeline connection, in particular to a pipeline butt joint which comprises a butt joint body, two pipelines are inserted into the butt joint body from the two sides of the butt joint body in a centering mode respectively, and the two sides of the butt joint body are both connected with extrusion components in a sliding mode. The butt joint comprises a butt joint sleeve, and a limiting convex ring is arranged in the butt joint sleeve; an elastic sleeve is fixedly connected in the limiting convex ring, and a plurality of inclined teeth are arranged on the inner side of the elastic sleeve; the inclined teeth are symmetrically arranged with the centering position of the butt joint sleeve as the center. The inclined tooth is provided with an inclined surface and a vertical surface, and the end part of the pipeline and the inclined surface of the inclined tooth are inserted into the elastic sleeve in a contact manner; connection of two pipelines can be completed on the premise that the pipelines are not machined.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection, and more specifically to a pipeline docking head. Background Art

[0002] A pipeline refers to a pipe that transmits working fluid or gas in a hydraulic or pneumatic system; in the design and layout of pipelines, it is necessary to dock pipelines to complete the laying of pipelines. In the prior art, the docking of pipelines often requires the use of a docking head. For example, the patent with the publication number CN220727405U discloses a deformation-proof pipe joint, which belongs to a pipeline connection device; it includes a first connector, a second connector, and a compression sleeve with a pipeline channel in the middle; the outer ends of the first connector and the second connector are respectively fixedly connected to the pipelines on both sides, and the inner ends are butt-jointed with each other. However, in the process of completing the docking of pipelines in this patent, it is necessary to change the structure of the pipeline end, that is, it is necessary to perform certain processing on the pipeline. However, some pipelines cannot or are not convenient to be cut or shaped during construction or use. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a pipeline docking head, which can complete the connection of two pipelines without processing the pipelines.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A pipeline docking head includes a docking head. Two pipelines are respectively inserted into the docking head from both sides in a centered manner, and extrusion components are slidably connected to both sides of the docking head.

[0006] The docking head includes a docking sleeve, and a limiting convex ring is arranged inside the docking sleeve; an elastic sleeve is fixedly connected inside the limiting convex ring, and a plurality of inclined teeth are arranged on the inner side of the elastic sleeve; the plurality of inclined teeth are symmetrically arranged with the centered position of the docking sleeve as the center; the inclined teeth are provided with inclined surfaces and vertical surfaces, and the end of the pipeline contacts the inclined surface of the inclined tooth and is inserted into the elastic sleeve; the elastic sleeve is made of rubber material, and a holding ring is fixedly connected to the middle of the docking sleeve; V-shaped closed rings are fixedly connected to both the left and right sides of the limiting convex ring, and both V-shaped closed rings are sleeved inside the docking sleeve; the V-shaped closed ring is made of rubber material.

[0007] The extrusion component includes an extrusion sleeve, the extrusion sleeve is slidably connected inside the docking sleeve, the end of the extrusion sleeve can extrude the V-shaped closed ring, a positioning nail is connected to the extrusion sleeve through a thread, the end of the positioning nail can abut against the docking sleeve, a threaded sleeve is rotatably connected to the extrusion sleeve, and the threaded sleeve is connected to the docking sleeve through a thread.

[0008] The beneficial effects of the utility model are:

[0009] By inserting two pipelines into the docking head from both sides of the docking head respectively, the docking of the two pipelines is completed, and the docking head can complete the sealed docking of pipelines with different outer diameters within a certain diameter range. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present utility model will be further described in detail below with reference to the drawings and specific implementation methods.

[0011] Figure 1 is a schematic structural diagram of the pipeline docking head of the present utility model;

[0012] Figure 2 is a schematic cross-sectional structural diagram of the pipeline docking head of the present utility model;

[0013] Figure 3 is a schematic structural diagram of the docking sleeve of the present utility model;

[0014] Figure 4 is a cross-sectional view of the docking sleeve of the present utility model;

[0015] Figure 5 is a schematic structural diagram of the extrusion sleeve of the present utility model.

[0016] In the figure:

[0017] Pipeline 10;

[0018] Docking head 20; Docking sleeve 21; Limit convex ring 22; Elastic sleeve 23; Inclined teeth 24; V-shaped sealing ring 25; Holding ring 26;

[0019] Extrusion member 30; Extrusion sleeve 31; Threaded sleeve 32; Positioning pin 33. SPECIFIC EMBODIMENTS

[0020] The present utility model will be further described in detail below with reference to the drawings.

[0021] As Figures 1 to 5 shown, in order to achieve the technical effect of "being able to complete the connection of two pipelines without processing the pipelines", the structure and function of a pipeline docking head will be described in detail below;

[0022] As Figure 1 shown, a pipeline docking head includes a docking head 20. Two pipelines 10 are inserted into the docking head 20 from both sides of the docking head in a centered manner. That is, when one pipeline 10 is fixed, first insert the docking head 20 into the end of the fixed pipeline 10. After the fixed pipeline 10 is inserted into the middle of the docking head 20, then insert the other movable pipeline 10 into the middle of the docking head 20. In this way, the docking of the fixed pipeline 10 and the movable pipeline 10 is completed;

[0023] AsFigure 2 As shown, in order to ensure the stability and sealing after the docking of pipeline 10 and pipeline 10;

[0024] The docking joint 20 includes a docking sleeve 21. Inside the docking sleeve 21, there is an integrally formed limit convex ring 22. A resilient sleeve 23 is glued inside the limit convex ring 22. The resilient sleeve 23 is preferably made of rubber material. A plurality of inclined teeth 24 are provided on the inner side of the resilient sleeve 23. As Figure 4 shown, the inclined teeth 24 are provided with inclined surfaces and vertical surfaces, and the plurality of inclined teeth 24 are symmetrically arranged around the centering position of the docking sleeve 21;

[0025] When the pipeline 10 is inserted into the docking sleeve 21 from both sides of the docking sleeve 21, the end of the pipeline 10 contacts the inclined surface of the inclined teeth 24. Then, the end of the pipeline 10 squeezes the inclined teeth 24, causing the inclined teeth 24 to undergo an inclined deformation. That is, when the pipeline 10 is inserted into the docking sleeve 21 from the left side, the pipeline 10 squeezes the inclined teeth 24 from the left side. The outer diameter of the pipeline 10 is larger than the inner diameter of the inclined teeth 24. Then, the inclined teeth 24 are inclined to the left side, and then the inclined teeth 24 contact and squeeze the pipeline 10, thereby ensuring the sealing and stability of the connection of the pipeline 10;

[0026] And because when the pipeline 10 is inserted, the inclination generated by the inclined teeth 24 can make it difficult for the pipeline 10 to be separated when inserted into the docking sleeve 21, thereby ensuring the sealing and stability corresponding to the two pipelines 10;

[0027] Furthermore, the docking joint 20 can complete the sealing docking of pipelines 10 with different outer diameters within a certain diameter range. That is, the outer diameter of the pipeline 10 is slightly larger than the diameter of the inclined teeth 24, and the outer diameter of the pipeline 10 is smaller than the diameter of the root of the inclined teeth 24;

[0028] Furthermore, in order to ensure the sealing and stability corresponding to the pipeline 10 and the pipeline 10, a V-shaped closing ring 25 and an extrusion member 30 are also provided;

[0029] As Figure 4 shown, V-shaped closing rings 25 are fixedly connected to both the left and right sides of the limit convex ring 22. Both V-shaped closing rings 25 are sleeved inside the docking sleeve 21. The V-shaped closing ring 25 is made of rubber material. The extrusion member 30 includes an extrusion sleeve 31. The extrusion sleeve 31 is slidably connected inside the docking sleeve 21. The end of the extrusion sleeve 31 can squeeze the V-shaped closing ring 25. A threaded sleeve 32 is rotatably connected to the extrusion sleeve 31, and the threaded sleeve 32 is threadedly connected to the docking sleeve 21;

[0030] After the pipeline 10 is inserted into the docking head 20, rotate the threaded sleeve 32. When the threaded sleeve 32 rotates, it drives the extrusion sleeve 31 to move through the thread. The extrusion sleeve 31 extrudes the V-shaped sealing ring 25, causing the V-shaped sealing ring 25 to deform, so that the inner side of the V-shaped sealing ring 25 extrudes the outer side of the pipeline 10, and then the V-shaped sealing ring 25 contacts and extrudes the pipeline 10, thereby further fixing the pipeline 10;

[0031] Furthermore, a positioning pin 33 is connected to the extrusion sleeve 31 by a thread, and the end of the positioning pin 33 can abut against the docking sleeve 21;

[0032] Rotate the positioning pin 33. When the positioning pin 33 rotates, it moves through the thread, so that the positioning pin 33 abuts against the connecting sleeve 21, thereby fixing the position of the extrusion sleeve 31.

Claims

1. A pipe joint, comprising a joint (20), characterized in that: The two pipelines (10) are respectively inserted into the butt joint (20) from the center of the two sides of the butt joint (20), and the two sides of the butt joint (20) are both slidably connected with an extrusion component (30).

2. A pipe joint according to claim 1, characterized in that: The butt joint (20) comprises a butt joint sleeve (21), and a limiting convex ring (22) is arranged inside the butt joint sleeve (21).

3. A pipe joint according to claim 2, characterized in that: An elastic sleeve (23) is fixedly connected inside the limiting convex ring (22), and a plurality of inclined teeth (24) are arranged on the inner side of the elastic sleeve (23).

4. A pipe joint according to claim 3, characterized in that: A plurality of inclined teeth (24) are symmetrically arranged with the centering position of the butt sleeve (21) as the center.

5. The pipe joint according to claim 3, characterized in that: The inclined tooth (24) is provided with an inclined surface and a vertical surface, and the end of the pipeline (10) contacts the inclined surface of the inclined tooth (24) and is inserted into the elastic sleeve (23).

6. The pipe joint according to claim 3, characterized in that: The elastic sleeve (23) is made of rubber material, and a gripping ring (26) is fixedly connected to the middle of the butt sleeve (21).

7. The pipe joint according to claim 3, characterized in that: The left and right sides of the limiting convex ring (22) are fixedly connected with V-shaped closed rings (25), and the two V-shaped closed rings (25) are sleeved in the docking sleeve (21).

8. A pipe joint according to claim 7, characterized in that: The V-shaped closed ring (25) is made of rubber material.

9. The pipe joint according to claim 7, characterized in that: The extrusion component (30) comprises an extrusion sleeve (31), which is slidably connected in the docking sleeve (21), and the end of the extrusion sleeve (31) can extrude the V-shaped closed ring (25). The extrusion sleeve (31) is threadedly connected with a positioning pin (33), and the end of the positioning pin (33) can be pressed against the docking sleeve (21).

10. A pipe joint according to claim 9, characterized in that: The extrusion sleeve (31) is rotatably connected to a threaded sleeve (32), and the threaded sleeve (32) is connected to the butt sleeve (21) via threads.

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