Lining sliding sleeve

Abstract

The utility model discloses a lining sliding sleeve which comprises a pipe body, guide sections are arranged at the two ends of the pipe body respectively, the outer diameter of each guide section is gradually reduced from one end close to the pipe body to the other end, a first groove is formed in the outer wall of each guide section, a sealing ring is arranged at the position, close to the corresponding guide section, of the pipe body, and the first groove is communicated with the sealing ring. The sealing ring is arranged between the two guiding sections, and the inner wall of the pipe body and the inner walls of the guiding sections are each provided with an anti-corrosion layer. Compared with the prior art, two adjacent steel pipes are connected through the lining sliding sleeve, so that the service life of the steel pipes and the lining sliding sleeve is prolonged, the construction efficiency is improved, and the labor cost is reduced. Thirdly, when the lining sliding sleeve is inserted into the steel pipe, a first groove formed in the guide section can effectively reduce bubbles in a glue layer when making contact with sealant in the steel pipe; and secondly, bubbles can be effectively prevented in the insertion process of the pipe body, so that the sealing performance of the lining sliding sleeve can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding sleeve manufacturing, in particular to a lining sliding sleeve. Background Art

[0002] The inner wall of an oil pipeline is coated with an anti-corrosion layer. At present, when two adjacent oil pipelines are connected, they are fixed by welding. However, this fixing method is prone to damage the anti-corrosion layer of the oil pipeline due to excessive welding temperature. If the anti-corrosion layer is damaged, it will affect the service life of the oil pipeline. Content of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] Based on this, the utility model provides a lining sliding sleeve to solve the problem that the service life of an oil pipeline is affected because the anti-corrosion layer is easily damaged when traditional oil pipelines are fixed by welding.

[0005] (II) Technical Solutions

[0006] To overcome the above problems or at least partially solve the above problems, the utility model provides a lining sliding sleeve, including a pipe body. Guide sections are respectively arranged at both ends of the pipe body. The outer diameter of the guide section gradually decreases from one end close to the pipe body to the other end. A first groove is arranged on the outer wall of the guide section. A sealing ring is arranged on the pipe body close to the guide section. The sealing ring is arranged between the two guide sections. Anti-corrosion layers are arranged on the inner wall of the pipe body and the inner wall of the guide section.

[0007] Preferably, the groove width of the first groove gradually decreases from the groove opening to the groove bottom.

[0008] Preferably, a second groove is arranged at the middle position of the pipe body, and a positioning component is arranged in the second groove.

[0009] Preferably, the positioning component includes heat insulation cotton and a positioning cylinder. The heat insulation cotton and the positioning cylinder are both located in the second groove. The heat insulation cotton is arranged between the groove bottom of the second groove and the positioning cylinder. Positioning pieces are fixed on the outer wall of the positioning cylinder.

[0010] Preferably, the outer diameter of the positioning cylinder is smaller than the outer diameter of the pipe body.

[0011] Preferably, there are four positioning pieces, and the four positioning pieces are evenly distributed on the outer periphery of the positioning cylinder.

[0012] Preferably, the pipe body is symmetrically distributed along the positioning pieces.

[0013] Preferably, the materials of the positioning cylinder and the positioning pieces are both iron.

[0014] Preferably, a third groove is provided on the pipe body, the sealing ring is embedded in the third groove, and there are two sealing rings between the positioning component and the guiding section.

[0015] Preferably, the inner diameter of the guiding section gradually increases from the end close to the pipe body to the other end.

[0016] (III) Beneficial effects

[0017] The inner lining sliding sleeve of the present utility model has the following advantages:

[0018] In the present utility model, both ends of the inner lining sliding sleeve are respectively inserted into two steel pipes, so as to realize the connection of the two steel pipes. This connection method will not damage the anti-corrosion layers of the steel pipes and the inner lining sliding sleeve, which is beneficial to improving the service life of the steel pipes and the inner lining sliding sleeve. Secondly, compared with welding construction, the method of connecting adjacent steel pipes through the inner lining sliding sleeve can improve the construction efficiency and reduce the labor cost. Thirdly, when the inner lining sliding sleeve is inserted into the steel pipe, the first groove provided on the guiding section can effectively reduce the air bubbles in the glue layer when contacting the sealant inside the steel pipe; secondly, it can also effectively prevent the generation of air bubbles during the insertion process of the pipe body, so as to effectively improve the sealing performance of the inner lining sliding sleeve. Description of the drawings

[0019] The features and advantages of the present utility model will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as imposing any limitation on the present utility model. In the drawings:

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at A in

[0022] Description of the reference numerals:

[0023] 1. Pipe body, 11. Third groove, 2. Guiding section, 21. First groove, 3. Sealing ring, 4. Positioning component, 41. Heat insulation cotton, 42. Positioning cylinder, 43. Positioning piece. Detailed implementation manners

[0024] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementations disclosed below.

[0025] Refer to the attachedFigure 1 and appendix Figure 2 , this embodiment provides an inner liner slip sleeve. An inner liner slip sleeve includes a pipe body 1. Guide sections 2 are respectively fixed at both ends of the pipe body 1. The outer diameter of the guide section 2 gradually decreases from one end close to the pipe body 1 to the other end, thereby forming a guiding surface. This structural design facilitates guiding the guide section 2 into the steel pipe. A first groove 21 is provided on the outer wall of the guide section 2. A sealing ring 3 is provided at a position of the pipe body 1 close to the guide section 2. The sealing ring 3 is arranged between the two guide sections 2. The sealing ring 3 is used to seal the gap between the pipe body 1 and the steel pipe. Anticorrosion layers are provided on the inner walls of both the pipe body 1 and the guide section 2. When the slip sleeve of the present utility model is installed in the steel pipe, a sealing glue is applied inside the steel pipe, and the slip sleeve will push the glue into the steel pipe. If there are air bubbles in the glue layer, the sealing performance will be affected. The first groove 21 is provided on the guiding surface of the guide section 2. When contacting the sealing glue, it can effectively reduce the air bubbles in the glue layer; secondly, it can also effectively prevent the generation of air bubbles during the pushing process, thereby effectively improving the installation quality of the inner liner slip sleeve.

[0026] As another implementation manner of the present utility model: The groove width of the first groove 21 gradually decreases from the groove opening to the groove bottom.

[0027] As another implementation manner of the present utility model: A second groove is provided at the middle position of the pipe body 1. A positioning component 4 is provided in the second groove. The second groove restricts the movement of the positioning component 4 along the length direction of the pipe body 1. The inner liner slip sleeve is used to connect two steel pipes. The positioning component 4 is used to position the position of the pipe body 1, preventing the pipe body 1 from entering one steel pipe too long and resulting in being too short when entering the other steel pipe, and avoiding reducing the sealing performance of the inner liner slip sleeve.

[0028] An implementation manner of the positioning component 4: The positioning component 4 includes a heat insulation cotton 41 and a positioning cylinder 42. Both the heat insulation cotton 41 and the positioning cylinder 42 are located in the second groove. The heat insulation cotton 41 is arranged between the bottom of the second groove and the positioning cylinder 42. A positioning piece 43 is fixed on the outer wall of the positioning cylinder 42. When the two ends of the inner liner slip sleeve are respectively inserted into two steel pipes, the steel pipe stops when it touches the positioning piece 43, so that the lengths of the inner liner slip sleeve in the two steel pipes are consistent, which is beneficial to ensuring the sealing performance between the inner liner slip sleeve and the steel pipe. After the positioning is completed, the positioning piece 43 can be broken off by pliers without affecting the continuous installation of the inner liner slip sleeve.

[0029] As another implementation manner of the present utility model: The outer diameter of the positioning cylinder 42 is smaller than the outer diameter of the pipe body 1. This structural design facilitates the complete insertion of the inner liner slip sleeve into the steel pipe.

[0030] As another implementation manner of the present utility model: There are four positioning pieces 43, and the four positioning pieces 43 are evenly distributed on the outer periphery of the positioning cylinder 42, so as to better position the position of the pipe body 1 in the steel pipe.

[0031] As another embodiment of the present utility model: The pipe bodies 1 are symmetrically distributed along the positioning piece 43.

[0032] As another embodiment of the present utility model: The positioning cylinder 42 and the positioning piece 43 are both made of iron.

[0033] Specifically, the width of the positioning cylinder 42 is greater than the diameter of the sealing ring 3.

[0034] As another embodiment of the present utility model: A third groove 11 is provided on the pipe body 1, the sealing ring 3 is embedded in the third groove 11, and there are two sealing rings 3 between the positioning assembly 4 and the guiding section 2. This structural design can effectively ensure the sealing performance of the inner lining sliding sleeve.

[0035] In the present utility model, both ends of the inner lining sliding sleeve are respectively inserted into two steel pipes, so as to realize the connection of the two steel pipes. This connection method will not damage the anti-corrosion layers of the steel pipes and the inner lining sliding sleeve, which is beneficial to improving the service life of the steel pipes and the inner lining sliding sleeve. Secondly, compared with welding construction, the method of connecting adjacent steel pipes through the inner lining sliding sleeve can improve the construction efficiency and reduce the labor cost. Thirdly, when the inner lining sliding sleeve is inserted into the steel pipe, the first groove 21 provided on the guiding section 2 can effectively reduce the air bubbles in the glue layer when contacting the sealant in the steel pipe; secondly, it can also effectively prevent the generation of air bubbles during the insertion process of the pipe body 1, so as to effectively improve the sealing performance of the inner lining sliding sleeve.

[0036] Finally, the method of the present utility model is only a preferred implementation scheme and is not used to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A lining sliding sleeve, characterized in that, It includes a tube body, and guiding sections are respectively provided at both ends of the tube body. The outer diameter of the guiding section gradually decreases from the end close to the tube body to the other end. A first groove is provided on the outer wall of the guiding section. A sealing ring is provided at the position of the tube body close to the guiding section. The sealing ring is arranged between the two guiding sections. Anti-corrosion layers are provided on the inner walls of both the tube body and the guiding section.

2. The inner lining sliding sleeve according to claim 1, characterized in that, The width of the first groove gradually decreases from the groove opening to the groove bottom.

3. The inner lining sliding sleeve according to claim 1, wherein, A second groove is provided at the middle position of the tube body, and a positioning assembly is provided in the second groove.

4. The inner lining sliding sleeve according to claim 3, characterized in that, The positioning assembly includes a heat-insulating cotton and a positioning cylinder. Both the heat-insulating cotton and the positioning cylinder are located in the second groove. The heat-insulating cotton is arranged between the groove bottom of the second groove and the positioning cylinder. A positioning piece is fixed on the outer wall of the positioning cylinder.

5. The inner lining sliding sleeve according to claim 4, wherein, The outer diameter of the positioning cylinder is smaller than the outer diameter of the tube body.

6. The inner lining sliding sleeve according to claim 5, characterized in that, There are four positioning pieces, and the four positioning pieces are evenly distributed on the outer circumference of the positioning cylinder.

7. The inner lining slip sleeve according to claim 6, wherein The tube body is symmetrically distributed along the positioning pieces.

8. The inner lining slip sleeve according to claim 7, characterized in that, The materials of both the positioning cylinder and the positioning pieces are iron.

9. The inner lining sliding sleeve according to claim 3, characterized in that, A third groove is provided on the tube body, and the sealing ring is embedded in the third groove. There are two sealing rings between the positioning assembly and the guiding section.

10. The inner lining sliding sleeve according to claim 1, wherein, The inner diameter of the guiding section gradually increases from the end close to the tube body to the other end.

Images