Hole net steel belt composite pipeline

Abstract

The invention relates to the technical field of composite pipes, and discloses a hole net steel belt composite pipeline which comprises a composite pipe body, a ring sleeve locking assembly and a sealing connecting pipe, the ring sleeve locking assembly is installed at the end of the composite pipe body and used for locking the composite pipe body, and the sealing connecting pipe is installed outside the ring sleeve locking assembly and used for locking the composite pipe body. The composite pipe is used for achieving connection between composite pipe bodies, each composite pipe body comprises an outer-layer pipe, a steel belt, an inner-layer pipe, an elastic rubber pipe, a spring piece and a shielding ring, a plurality of meshes are formed in the steel belt, reinforcing plates are connected into the meshes, the spring piece is located between the elastic rubber pipe and the inner-layer pipe, and the shielding ring is arranged between the elastic rubber pipe and the inner-layer pipe. The shielding rings are installed on the side faces of the ends of the outer-layer pipe, the steel belt and the inner-layer pipe and used for shielding the gap between the elastic rubber pipe and the inner-layer pipe. The internal structure of the hole net steel belt composite pipe is simplified, connection can be completed without arranging a heating coil and a binding post, the inner pipe of the composite pipe body has an expandable function, and the using effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite pipes, and in particular to a mesh steel strip composite pipe. Background Art

[0002] At present, in my country's water supply projects, the commonly used pipes are spiral steel pipes, ordinary cast iron pipes, UPVC pipes, glass fiber reinforced plastic pipes, prestressed concrete pipes, PE pipes, etc. With the development of society and the progress of the times, there are more and more types of new pipes, and the mesh steel belt composite pipe has also become a pipe that is widely used in water supply projects. The mesh steel belt composite pipe is a composite pipe with polyethylene as the main raw material and the mesh pipe welded by cold-rolled steel belt as the reinforced skeleton. It is a new type of composite pressure pipe with double-sided composite molding of the outer layer and the inner layer after extrusion.

[0003] The existing mesh steel strip composite pipe can be connected by electric fusion pipe fittings and flange connection. The performance of the connection is the same as that of the pipe. The electric fusion connection uses the internal heating element of the pipe fitting to melt the outer plastic of the pipe with the inner plastic of the pipe fitting, and reliably connects the pipe and the pipe fitting together. However, in order to ensure that the same internal pressure as the entire pipeline system is withstood, the electric fusion pipe fittings are usually also produced by adding lining steel reinforcement.

[0004] The existing electric fusion pipe connection requires the installation of a heating element (i.e., a heating coil) in the pipe in advance, and then installing a terminal connected to the heating element on the pipe surface to achieve the heating effect of the electric fusion pipe. However, this will lead to the complication of the internal structure of the perforated steel strip composite pipe. Although the perforated steel strip composite pipe has strong compressive strength, the connection between the steel skeleton and the inner and outer layers of plastic is often not firm, resulting in a weak overall structure and a short service life. In addition, the perforated steel strip composite pipe does not have the function of inner pipe expansion. When it is used as a sewage pipe to discharge sewage, there are more impurities in the sewage, and the pipe is prone to blockage, affecting its use effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a mesh steel strip composite pipeline.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A mesh steel belt composite pipeline, comprising:

[0008] Composite pipe body;

[0009] A ring sleeve locking assembly, which is installed at the end of the composite pipe body and is used to lock the composite pipe body;

[0010] A sealed connecting pipe, which is installed outside the ring sleeve locking assembly and is used to achieve connection between the composite pipe bodies;

[0011] The composite pipe body comprises:

[0012] Outer tube;

[0013] A steel belt connected to the inside of the outer tube;

[0014] An inner tube, the inner tube is connected to the inside of the steel belt, a plurality of mesh holes are opened inside the steel belt, and a reinforcing plate is connected inside the mesh holes;

[0015] An elastic rubber tube, wherein the elastic rubber tube is located inside the inner tube, and a gap is provided between the elastic rubber tube and the inner tube;

[0016] A spring sheet, wherein the spring sheet is located between the elastic rubber tube and the inner tube, one end of the spring sheet is connected to the elastic rubber tube, and the other end of the spring sheet is connected to the inner tube;

[0017] A shielding ring is installed on the side surfaces of the ends of the outer layer tube, the steel belt and the inner layer tube, and is used to shield the gap between the elastic rubber tube and the inner layer tube.

[0018] Furthermore, a plurality of outer connecting plates are installed in the outer tube, and a plurality of inner connecting plates are installed in the inner tube.

[0019] Furthermore, a positioning ring groove is formed on the outer surface of the end of the outer layer tube, and the ring sleeve locking assembly is installed on the positioning ring groove.

[0020] Furthermore, the ring sleeve locking assembly includes an inner ring sleeve and an outer ring sleeve, the inner ring sleeve is installed on the positioning ring groove, the outer ring sleeve is located outside the inner ring sleeve, a plurality of tapered holes are opened between the outer ring sleeve and the inner ring sleeve, a tapered sleeve is slidably arranged in the tapered hole, positioning ring plates are arranged on the side surfaces of the ends of the outer ring sleeve and the inner ring sleeve, a plurality of bolts are connected along the circumferential thread on the positioning ring plate, and the ends of the bolts are rotatably connected to one end of the large diameter of the tapered sleeve.

[0021] Furthermore, guide holes are provided on both sides of the conical hole, and sliding blocks which are slidably matched with the guide holes are provided on both sides of the cone sleeve.

[0022] Furthermore, a mounting hole for inserting the end of the bolt is provided at one end of the large diameter of the cone sleeve, a connecting ring groove is provided in the mounting hole, and connecting blocks matching the connecting ring groove are installed on both sides of the end of the bolt.

[0023] Furthermore, the sealing connecting pipe is installed on the outside of the outer ring sleeve, and the end side of the sealing connecting pipe can abut against the positioning ring plate. A convex ring is provided inside the sealing connecting pipe, and fourth sealing rings are provided on both sides of the convex ring. A cylindrical sealing rubber ring is provided on the inner surface of the convex ring.

[0024] Furthermore, a first sealing ring is installed on the side surface of the shielding ring and the side surfaces of the ends of the inner layer tube and the elastic rubber tube.

[0025] Furthermore, a second sealing ring is installed on the outer surface of the outer ring sleeve, and a third sealing ring is installed on the inner surface of the inner ring sleeve.

[0026] Furthermore, the elastic rubber tube is internally connected with an elastic corrosion-resistant rubber layer.

[0027] Compared with the prior art, the present invention provides a mesh steel belt composite pipeline, which has the following beneficial effects:

[0028] 1. The present invention installs a sleeve locking assembly at the end of the composite pipe body and connects two composite pipe bodies through a sealed connecting pipe. The composite pipe body is locked by the sleeve locking assembly, and the sealing between the composite pipe body and the sealed connecting pipe is effectively improved, so that the internal structure of the mesh steel strip composite pipe is simplified, and the connection can be completed without setting a heating coil and a terminal.

[0029] 2. The present invention achieves the purpose of firmly connecting the steel belt with the outer layer pipe and the inner layer pipe by installing a reinforcing plate on the inner wall of the mesh opened inside the steel belt, and also increases the compression resistance of the pipeline.

[0030] 3. The present invention provides a spring sheet and an elastic rubber tube to create a blockage inside the composite tube body. The pressure inside the composite tube body increases, the spring sheet tilts and bends, the aperture inside the composite tube body becomes larger, and the elastic rubber tube is elastic and can expand, so that the blockage can flow smoothly inside the composite tube body, making the inner tube of the composite tube body expandable, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic cross-sectional structure diagram of the present invention as a whole;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the composite pipe body of the present invention;

[0033] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0034] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 5 It is a schematic diagram of the cross-sectional structure of the ring sleeve locking assembly of the present invention;

[0036] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0037] Figure 7 It is a schematic diagram of the cross-sectional structure of the sealed connecting pipe of the present invention.

[0038] Markings in the figure: 1. Composite pipe body; 11. Outer pipe; 111. Positioning ring groove; 12. Steel belt; 121. Mesh; 122. Reinforcement plate; 13. Inner pipe; 14. Spring sheet; 15. Elastic rubber tube; 16. Elastic corrosion-resistant rubber layer; 17. Shielding ring; 18. Outer connecting plate; 19. Inner connecting plate; 2. Ring sleeve locking assembly; 21. Inner ring sleeve; 22. Outer ring sleeve; 23. Conical hole; 24. Conical sleeve; 25. Positioning ring plate; 26. Bolt; 27. Guide hole; 28. Slider; 29. ​​Connecting ring groove; 30. Connecting block; 3. Sealing connecting pipe; 31. Convex ring; 32. Fourth sealing ring; 33. Cylinder sealing rubber ring; 4. First sealing ring; 5. Second sealing ring; 6. Third sealing ring. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0040] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0041] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0044] The embodiment of the present invention provides a mesh steel strip composite pipeline, referring to Figures 1 to 7 , comprising: a composite pipe body 1, a ring sleeve locking assembly 2 and a sealing connecting pipe 3;

[0045] The ring sleeve locking assembly 2 is installed at the end of the composite pipe body 1 to lock the composite pipe body 1 and effectively improve the sealing between the composite pipe body 1 and the sealing connection pipe 3;

[0046] The sealing connection pipe 3 is installed outside the ring sleeve locking assembly 2 to achieve the connection between the composite pipe bodies 1;

[0047] The composite pipe body 1 comprises: an outer layer pipe 11, a steel belt 12, an inner layer pipe 13, an elastic rubber tube 15, a spring sheet 14 and a shielding ring 17;

[0048] The steel belt 12 is connected to the inside of the outer tube 11;

[0049] The inner tube 13 is connected to the inside of the steel belt 12. A plurality of meshes 121 are provided inside the steel belt 12. A reinforcing plate 122 is connected inside the meshes 121, thereby achieving a firm connection between the steel belt 12 and the outer tube 11 and the inner tube 13, and also increasing the pressure resistance of the pipeline.

[0050] The elastic rubber tube 15 is located inside the inner tube 13 , and there is a gap between the elastic rubber tube 15 and the inner tube 13 ; specifically, the elastic rubber tube 15 is elastic and can expand.

[0051] The spring sheet 14 is located between the elastic rubber tube 15 and the inner tube 13, one end of the spring sheet 14 is connected to the elastic rubber tube 15, and the other end of the spring sheet 14 is connected to the inner tube 13;

[0052] Specifically, the spring sheet 14 is located in the gap between the elastic rubber tube 15 and the inner tube 13 . A plurality of spring sheets 14 are provided and are evenly distributed along the circumference of the inner tube 13 . The spring sheets 14 can be made of carbon spring steel.

[0053] The shielding ring 17 is installed on the side surfaces of the ends of the outer tube 11, the steel belt 12 and the inner tube 13, and is used to shield the gap between the elastic rubber tube 15 and the inner tube 13, so as to prevent sewage from entering the gap between the elastic rubber tube 15 and the inner tube 13 when the sewage is discharged as a sewage pipe, thereby corroding the spring sheet 14 and reducing the service life of the spring sheet 14.

[0054] Specifically, the side surface of the shielding ring 17 is connected to the side surfaces of the ends of the outer tube 11 , the steel belt 12 and the inner tube 13 , and the elastic rubber tube 15 is slidably fitted with the side surface of the shielding ring 17 .

[0055] Among them, refer to Figure 4 In this embodiment, a first sealing ring 4 is installed on the side surface of the shielding ring 17 and the side surfaces of the ends of the inner layer tube 13 and the elastic rubber tube 15 .

[0056] Specifically, the gap between the inner tube 13 and the elastic rubber tube 15 is sealed by the first sealing ring 4 , and when the elastic rubber tube 15 is expanded or contracted, sewage will not flow into the gap through the gap between the shielding ring 17 and the elastic rubber tube 15 .

[0057] Reference Figures 2 to 4 In this embodiment, the elastic rubber tube 15 is internally connected with an elastic corrosion-resistant rubber layer 16 to improve the corrosion resistance of the rubber inside the pipeline and increase the service life of the pipeline.

[0058] Specifically, the elastic corrosion-resistant rubber layer 16 has elasticity and can expand.

[0059] Reference Figures 2 to 4 In this embodiment, a plurality of outer connecting plates 18 are installed in the outer layer tube 11 , and a plurality of inner connecting plates 19 are installed in the inner layer tube 13 .

[0060] Specifically, by setting the outer connecting plate 18 and the inner connecting plate 19, it is convenient to fix and reinforce the pipeline, increase the pressure resistance of the pipeline, and increase the pressure resistance of the pipeline; the outer connecting plates 18 are evenly distributed along the inner circumference of the outer layer pipe 11, and the number is 4-8; the inner connecting plates 19 are evenly distributed along the inner circumference of the inner layer pipe 13, and the number is 4-8.

[0061] Reference Figure 2 In this embodiment, a positioning ring groove 111 is formed on the outer surface of the end of the outer layer tube 11 , and the ring sleeve locking assembly 2 is installed on the positioning ring groove 111 .

[0062] Specifically, by providing the positioning ring groove 111 , the installation and positioning of the ring sleeve locking assembly 2 is facilitated.

[0063] Reference Figure 5 and Figure 6In this embodiment, the ring sleeve locking assembly 2 includes an inner ring sleeve 21 and an outer ring sleeve 22. The inner ring sleeve 21 is installed on the positioning ring groove 111, and the outer ring sleeve 22 is located outside the inner ring sleeve 21. A plurality of conical holes 23 are opened between the outer ring sleeve 22 and the inner ring sleeve 21. A conical sleeve 24 is slidably arranged in the conical hole 23. Positioning ring plates 25 are arranged on the side surfaces of the ends of the outer ring sleeve 22 and the inner ring sleeve 21. A plurality of bolts 26 are threadedly connected to the positioning ring plate 25 along its circumferential direction, and the ends of the bolts 26 are rotatably connected to one end of the large diameter of the conical sleeve 24.

[0064] Specifically, the number of the conical holes 23 is the same as the number of the bolts 26, corresponding one to one, and the number of the conical holes 23 is 8-16, which can be designed according to actual conditions; the side inclination of the conical hole 23 is consistent with the side inclination of the cone sleeve 24; the positioning ring plate 25 is not connected to the outer ring sleeve 22 and the inner ring sleeve 21, but only contacts the side of the end of the outer ring sleeve 22 and the inner ring sleeve 21; a number of through holes corresponding to the bolts 26 are opened on the positioning ring plate 25, and the bolts 26 are threadedly connected to the through holes; the ends of the bolts 26 pass through the through holes and One end of the tapered sleeve 24 with a large diameter is rotatably connected; an opening seam is provided on one side of the inner ring sleeve 21 and the outer ring sleeve 22, so that the inner ring sleeve 21 and the outer ring sleeve 22 are in an open shape, which is convenient for the inner ring sleeve 21 to lock the outer layer pipe 11 and for the outer ring sleeve 22 to tighten the sealing connecting pipe 3, thereby improving the sealing between the composite pipe body 1 and the sealing connecting pipe 3; the side of the inner ring sleeve 21 and the outer ring sleeve 22 away from the positioning ring plate 25 can be in the same plane as the side of the shielding ring 17 away from the outer layer pipe 11, which is convenient for the subsequent coordinated installation with the sealing connecting pipe 3.

[0065] Among them, refer to Figure 6 In this embodiment, guide holes 27 are opened on both sides of the conical hole 23, and sliders 28 slidably matched with the guide holes 27 are provided on both sides of the cone sleeve 24.

[0066] Specifically, the cooperation between the guide hole 27 and the slider 28 improves the stability of the movement of the tapered sleeve 24 in the tapered hole 23 .

[0067] Reference Figure 6 In this embodiment, a mounting hole is provided at one end of the large diameter of the cone sleeve 24 for inserting the end of the bolt 26, a connecting ring groove 29 is provided in the mounting hole, and connecting blocks 30 matching the connecting ring groove 29 are installed on both sides of the end of the bolt 26.

[0068] Specifically, through the cooperation between the connecting annular groove 29 and the connecting block 30 , the bolt 26 can drive the cone sleeve 24 to move in the cone hole 23 while rotating.

[0069] Among them, refer to Figure 6In this embodiment, a second sealing ring 5 is installed on the outer surface of the outer ring sleeve 22, and a third sealing ring 6 is installed on the inner surface of the inner ring sleeve 21.

[0070] Specifically, by providing the second sealing ring 5 and the third sealing ring 6 , the sealing performance between the inner ring sleeve 21 and the outer layer tube 11 and the sealing performance between the outer ring sleeve 22 and the sealing connection tube 3 are improved.

[0071] Reference Figure 1 and Figure 7 In this embodiment, the sealing connecting tube 3 is installed on the outside of the outer ring sleeve 22, and the end side of the sealing connecting tube 3 can abut against the positioning ring plate 25. A convex ring 31 is provided inside the sealing connecting tube 3, and a fourth sealing ring 32 is provided on both sides of the convex ring 31. The inner surface of the convex ring 31 is provided with a cylindrical sealing rubber ring 33.

[0072] Specifically, the fourth sealing ring 32 seals between the convex ring 31 and the inner ring sleeve 21, the outer ring sleeve 22 and the shielding ring 17; the fourth sealing ring 32 and the cylinder sealing rubber ring 33 are provided to achieve a sealing effect.

[0073] In summary, the present invention installs the ring sleeve locking assembly 2 at the end of the composite pipe body 1, and connects the two composite pipe bodies 1 through the sealing connecting pipe 3, and drives the cone sleeve 24 to move in the tapered hole 23 by rotating the bolt 26, so that the inner ring sleeve 21 locks the outer layer pipe 11, and the outer ring sleeve 22 tightens the sealing connecting pipe 3, thereby improving the sealing between the composite pipe body 1 and the sealing connecting pipe 3, and simplifying the internal structure of the mesh steel strip composite pipe, and the connection can be completed without setting a heating coil and a terminal;

[0074] The present invention achieves the purpose of firmly connecting the steel belt 12 with the outer layer tube 11 and the inner layer tube 13 by installing a reinforcing plate 122 on the inner wall of the mesh 121 opened inside the steel belt 12, while also increasing the pressure resistance of the pipeline.

[0075] The present invention provides a spring sheet 14 and an elastic rubber tube 15, so that there is a blockage inside the composite pipe body 1. When the pressure inside the composite pipe body 1 increases, the spring sheet 14 tilts and bends, the internal aperture of the composite pipe body 1 becomes larger, and the elastic rubber tube 15 is elastic and can expand, so that the blockage can be unblocked inside the composite pipe body 1, so that the inner tube of the composite pipe body 1 has an expandable function, thereby improving the use effect.

[0076] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A mesh steel belt composite pipeline, characterized in that: include: Composite pipe body (1); A ring sleeve locking assembly (2), wherein the ring sleeve locking assembly (2) is installed at the end of the composite pipe body (1) and is used to lock the composite pipe body (1); A sealed connecting pipe (3), the sealed connecting pipe (3) being installed outside the ring sleeve locking assembly (2) and used to realize the connection between the composite pipe bodies (1); The composite pipe body (1) comprises: Outer tube (11); A steel belt (12), wherein the steel belt (12) is connected to the inside of the outer tube (11); An inner tube (13), the inner tube (13) being connected to the inside of the steel belt (12), the inside of the steel belt (12) being provided with a plurality of mesh holes (121), the inside of the mesh holes (121) being connected to a reinforcing plate (122); An elastic rubber tube (15), wherein the elastic rubber tube (15) is located inside the inner tube (13), and a gap is provided between the elastic rubber tube (15) and the inner tube (13); A spring sheet (14), the spring sheet (14) being located between the elastic rubber tube (15) and the inner tube (13), one end of the spring sheet (14) being connected to the elastic rubber tube (15), and the other end of the spring sheet (14) being connected to the inner tube (13); A shielding ring (17) is installed on the side surfaces of the ends of the outer tube (11), the steel belt (12) and the inner tube (13) and is used to shield the gap between the elastic rubber tube (15) and the inner tube (13).

2. The mesh steel strip composite pipeline according to claim 1, characterized in that: A plurality of outer connecting plates (18) are installed in the outer layer tube (11), and a plurality of inner connecting plates (19) are installed in the inner layer tube (13).

3. The mesh steel strip composite pipe according to claim 1, characterized in that: A positioning ring groove (111) is formed on the outer surface of the end of the outer layer tube (11), and the ring sleeve locking assembly (2) is installed on the positioning ring groove (111).

4. The mesh steel strip composite pipeline according to claim 3 is characterized in that: The ring sleeve locking assembly (2) comprises an inner ring sleeve (21) and an outer ring sleeve (22), wherein the inner ring sleeve (21) is mounted on a positioning ring groove (111), and the outer ring sleeve (22) is located outside the inner ring sleeve (21), and a plurality of conical holes (23) are provided between the outer ring sleeve (22) and the inner ring sleeve (21), and a conical sleeve (24) is slidably provided in the conical hole (23), and positioning ring plates (25) are provided on the side surfaces of the ends of the outer ring sleeve (22) and the inner ring sleeve (21), and a plurality of bolts (26) are threadedly connected to the positioning ring plate (25) along its circumferential direction, and the ends of the bolts (26) are rotatably connected to one end of the large diameter of the conical sleeve (24).

5. The mesh steel strip composite pipe according to claim 4, characterized in that: Guide holes (27) are provided on both sides of the conical hole (23), and sliding blocks (28) which are slidably matched with the guide holes (27) are provided on both sides of the conical sleeve (24).

6. The mesh steel strip composite pipe according to claim 4, characterized in that: A mounting hole for inserting the end of a bolt (26) is provided at one end of the cone sleeve (24) with a large diameter, a connecting ring groove (29) is provided in the mounting hole, and connecting blocks (30) matching the connecting ring groove (29) are installed on both sides of the ends of the bolt (26).

7. The mesh steel strip composite pipe according to claim 4, characterized in that: The sealing connection pipe (3) is installed outside the outer ring sleeve (22), and the end side of the sealing connection pipe (3) can abut against the positioning ring plate (25). A convex ring (31) is provided inside the sealing connection pipe (3), and fourth sealing rings (32) are provided on both sides of the convex ring (31). A cylindrical sealing rubber ring (33) is provided on the inner surface of the convex ring (31).

8. The mesh steel strip composite pipe according to claim 1, characterized in that: A first sealing ring (4) is installed on the side surface of the shielding ring (17) and the side surfaces of the ends of the inner layer tube (13) and the elastic rubber tube (15).

9. The mesh steel strip composite pipeline according to claim 4, characterized in that: A second sealing ring (5) is installed on the outer surface of the outer ring sleeve (22), and a third sealing ring (6) is installed on the inner surface of the inner ring sleeve (21).

10. The mesh steel strip composite pipeline according to claim 1, characterized in that: The elastic rubber tube (15) is internally connected with an elastic corrosion-resistant rubber layer (16).

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