Connecting structure of steel wire mesh framework composite pipe

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a connecting structure of a steel wire mesh framework composite pipe. The connecting structure comprises at least two mounting joints and a connecting part, each mounting connector comprises a threaded sleeve rotationally arranged on the circumferential outer side of the steel wire mesh framework composite pipe in a sleeving mode and a limiting ring fixed to the steel wire mesh framework composite pipe and abutting against the threaded sleeve; the connecting cylinder comprises a connecting part matched with the mounting joint and a sealing part connected with the connecting part; the sealing part is suitable for abutting against the end of the steel wire mesh framework composite pipe. According to the connecting structure of the steel wire mesh framework composite pipe, the threaded sleeve, the limiting ring and the connecting cylinder are arranged, the two steel wire mesh framework composite pipes can be conveniently connected only by fixing the limiting ring on the steel wire mesh framework composite pipe and then connecting the threaded sleeve with the connecting cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a connection structure of a steel wire mesh skeleton composite pipe. Background Art

[0002] The wire mesh skeleton pipe is an improved new type of steel skeleton plastic composite pipe. This new type of pipeline is made of high-strength plasticized wire mesh skeleton and thermoplastic polyethylene as raw materials. The wire winding mesh is used as the skeleton reinforcement of the polyethylene plastic pipe. It takes high-density polyethylene (HDPE) as the matrix and uses high-performance HDPE modified adhesive resin to tightly connect the steel wire skeleton with the inner and outer layers of high-density polyethylene, so that it has an excellent composite effect. Because the high-strength steel wire reinforcement is coated in continuous thermoplastic plastic, this composite pipe overcomes the shortcomings of steel pipes and plastic pipes, while maintaining their respective advantages.

[0003] Existing steel wire mesh skeleton composite pipes are generally connected by electric fusion. Electric fusion connection is the most common connection method, which is suitable for scenes with complex pipelines and pipe fittings that can be cut and welded at will. However, this connection method has high requirements for pipe fittings and welding technology, and requires professional staff to install, which greatly increases the installation fee and cost of steel wire mesh skeleton composite pipes.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to improve or solve the technical problem that the electric fusion connection method in the prior art has high requirements for pipe fittings and welding technology, the utility model provides a connection structure of a wire mesh skeleton composite pipe that is easy to install. The connection structure includes: a mounting joint, at least two of which are provided; each of the mounting joints includes a threaded sleeve rotatably sleeved on the outer side of the wire mesh skeleton composite pipe, and a limit ring fixed on the wire mesh skeleton composite pipe and abutting against the threaded sleeve; an internal thread is provided on the inner side of the threaded sleeve; a connecting tube includes a connecting part matching the mounting joint, and a sealing part connected to the connecting part; an external thread matching the internal thread is arranged on the outer side of the connecting part; and the sealing part is suitable for abutting against the end of the wire mesh skeleton composite pipe.

[0006] In the utility model, a connection structure of a wire mesh skeleton composite pipe includes a mounting joint and a connecting tube. The mounting joint is used to be fixed on the end of the wire mesh skeleton composite pipe, and the connecting tube connects the mounting joints on two wire mesh skeleton composite pipes. The mounting joint includes a threaded sleeve and a limiting ring. The limiting ring is fixed on the wire mesh skeleton composite pipe, and is used to prevent the threaded sleeve from detaching from the wire mesh skeleton composite pipe. The threaded sleeve is rotatably mounted on the circumferential outer side of the wire mesh skeleton composite pipe, and is used to form a threaded connection with the connecting tube. The connecting tube includes a connecting portion and a sealing portion, the connecting portion is used to be connected to the threaded sleeve, and the sealing portion is used to abut against the end of the wire mesh skeleton composite pipe, and the sealing portion abuts between the two wire mesh skeleton composite pipes to improve the sealing and connection stability of the connecting structure. Through the above-mentioned arrangement, the connection structure of the wire mesh skeleton composite pipe of the utility model is provided with a threaded sleeve, a limiting ring and a connecting tube. It only needs to fix the limiting ring on the wire mesh skeleton composite pipe, and then connect the threaded sleeve with the connecting tube, so that the two sections of the wire mesh skeleton composite pipe can be connected more conveniently.

[0007] Furthermore, a threaded hole is provided on the limiting ring, and a clamping bolt matching the threaded hole is arranged in the threaded hole; a plurality of the clamping bolts are evenly and spacedly arranged along the circumference of the limiting ring.

[0008] Furthermore, a guiding bevel is formed on the limiting ring; the threaded sleeve includes a limiting portion sleeved on the circumferential outer side of the wire mesh skeleton composite pipe, an inclined portion matching the guiding bevel, and a fixing portion connected to the connecting tube.

[0009] Furthermore, a first sealing gasket is provided on a side of the limiting ring away from the guiding inclined surface.

[0010] Furthermore, the connecting portion comprises a pre-installation portion adapted to be sleeved on the circumferential outer side of the wire mesh skeleton composite pipe and a pressing portion connected to the pre-installation portion; the pressing portion is inclined toward the middle of the connecting portion.

[0011] Furthermore, a second sealing gasket suitable for abutting against the wire mesh skeleton composite pipe is arranged on the sealing portion.

[0012] Furthermore, a support rod is arranged on the threaded sleeve to facilitate the rotation of the threaded sleeve.

[0013] In summary, compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) By providing a threaded sleeve, a limiting ring and a connecting tube, it is only necessary to fix the limiting ring on the steel wire mesh skeleton composite pipe, and then connect the threaded sleeve with the connecting tube, so that two sections of the steel wire mesh skeleton composite pipe can be connected more conveniently;

[0015] (2) By providing the first sealing gasket and the second sealing gasket, the sealing performance of the connection structure can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of an embodiment of a connection structure of a steel wire mesh skeleton composite pipe of the utility model;

[0018] Figure 2 This is another schematic diagram of an embodiment of a connection structure of a steel wire mesh skeleton composite pipe of the utility model.

[0019] List of reference numerals: 1. mounting joint; 11. threaded sleeve; 111. limiting portion; 112. inclined portion; 113. fixing portion; 114. support rod; 12. limiting ring; 121. threaded hole; 122. clamping bolt; 123. guide slope; 13. first sealing gasket; 2. connecting tube; 21. connecting portion; 211. pre-installed portion; 212. pressing portion; 22. sealing portion; 221. second sealing gasket. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element 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" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" 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 direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In order to improve or solve the technical problem that the electric fusion connection method in the prior art has high requirements for pipe fittings and welding technology, the utility model provides a connection structure of a wire mesh skeleton composite pipe that is easy to install. The connection structure includes: an installation joint 1, at least two of which are provided; each installation joint 1 includes a threaded sleeve 11 rotatably sleeved on the outer side of the wire mesh skeleton composite pipe, and a limit ring 12 fixed on the wire mesh skeleton composite pipe and abutting against the threaded sleeve 11; an internal thread is provided on the inner side of the threaded sleeve 11; a connection tube 2 includes a connection part 21 matching the installation joint 1, and a sealing part 22 connected to the connection part 21; an external thread matching the internal thread is arranged on the outer side of the connection part 21; the sealing part 22 is suitable for abutting against the end of the wire mesh skeleton composite pipe.

[0024] Figure 1 This is a schematic diagram of an embodiment of a steel wire mesh skeleton composite pipe of the utility model. Figure 2 This is another schematic diagram of an embodiment of a connection structure of a steel wire mesh skeleton composite pipe of the utility model. Figure 1 and Figure 2 As shown, in one or more embodiments, the connection structure of a wire mesh skeleton composite pipe of the utility model includes a mounting joint 1 and a connecting tube 2. At least two mounting joints 1 are provided, and the two mounting joints 1 are respectively installed on two sections of the wire mesh skeleton composite pipe. The connecting tube 2 connects the two mounting joints 1, and then connects the two sections of the wire mesh skeleton composite pipe.

[0025] Continue to see Figure 1 and Figure 2 In one or more embodiments, the mounting joint 1 includes a threaded sleeve 11 rotatably sleeved on the outer side of the steel mesh skeleton composite pipe, and a stop ring 12 fixed on the steel mesh skeleton composite pipe. Specifically, the stop ring 12 is roughly annular, and its diameter is slightly larger than the diameter of the steel mesh skeleton composite pipe. Further, a threaded hole 121 is provided on the stop ring 12, and a plurality of threaded holes 121 are evenly and spacedly arranged along the circumference of the stop ring 12. A clamping bolt 122 is arranged in the threaded hole 121, and one clamping bolt 122 is arranged in a corresponding threaded hole 121, and is threadedly connected with the stop ring 12. Accordingly, a plurality of clamping bolts 122 are evenly and spacedly arranged along the circumference of the stop ring 12. Further, a guide bevel 123 is also formed on the stop ring 12. The guide bevel 123 faces away from the steel mesh skeleton composite pipe. Furthermore, a first sealing gasket 13 is provided on the limiting ring 12, and the first sealing gasket 13 and the guide inclined surface 123 are arranged on both sides of the limiting ring 12. By rotating the clamping bolt 122, the end of the clamping bolt 122 is abutted against the steel wire mesh skeleton composite pipe, so that the limiting ring 12 is fixed on the steel wire mesh skeleton composite pipe.

[0026] Continue to see Figure 1 and Figure 2 In one or more embodiments, the threaded sleeve 11 includes a limiting portion 111 sleeved on the circumferential outer side of the wire mesh skeleton composite pipe, an inclined portion 112 matched with the guide bevel 123, and a fixed portion 113 connected to the connecting tube 2. Specifically, the diameter of the limiting portion 111 is slightly larger than the diameter of the wire mesh skeleton composite pipe. Before the limiting ring 12 is fixed, the threaded sleeve 11 is sleeved on the circumferential outer side of the wire mesh skeleton composite pipe. Further, the inclined portion 112 is roughly hollow truncated cone-shaped, its thick end is connected to the fixed portion 113, and its thin end is connected to the limiting portion 111. The inclination angle of the inclined portion 112 matches the inclination angle of the guide bevel 123. Further, the fixed portion 113 is roughly cylindrical, and its diameter is larger than the diameter of the limiting portion 111. An internal thread is provided on the inner side wall of the fixed portion 113. Furthermore, a support rod 114 is provided on the circumferential outer side of the fixing portion 113, and two support rods 114 are arranged along the circumference of the fixing portion 113. The arrangement of the support rods 114 facilitates the rotation of the threaded sleeve 11.

[0027] Continue to see Figure 1 and Figure 2 In one or more embodiments, the connecting tube 2 includes a connecting portion 21 matched with the mounting joint 1, and a sealing portion 22 connected to the connecting portion 21. Specifically, an external thread matched with the internal thread is arranged on the circumferential outer side of the connecting portion 21. The connecting portion 21 is connected to the threaded sleeve 11 by threads. Further, two connecting portions 21 are provided, and the two connecting portions 21 are arranged on both sides of the sealing portion 22. The two connecting portions 21 are respectively connected to two mounting joints 1. Further, the connecting portion 21 includes a pre-installation portion 211 suitable for being sleeved on the circumferential outer side of the steel wire mesh skeleton composite pipe and a pressing portion 212 connected to the pre-installation portion 211. Specifically, the pre-installation portion 211 is roughly cylindrical, and its diameter is slightly larger than the diameter of the steel wire mesh skeleton composite pipe. The pressing portion 212 is arranged between the pre-installation portion 211 and the sealing portion 22. The inner side wall of the pressing portion 212 extends obliquely toward the middle of the connecting portion 21. Furthermore, the inner diameter of the sealing portion 22 is smaller than the inner diameter of the pressing portion 212, so that the two ends of the sealing portion 22 can abut against the ends of the two steel mesh skeleton composite pipes. Furthermore, a second sealing gasket 221 is provided between the abutting portion and the steel mesh skeleton composite pipe. Specifically, the second sealing gasket 221 is fixed on the abutting portion and abuts against the end of the steel mesh skeleton composite pipe.

[0028] The working principle of the utility model is as follows: firstly, the threaded sleeve 11 is sleeved on the circumferential outer side of the steel mesh skeleton composite pipe, and then the clamping bolt 122 is tightened to fix the limit ring 12 on the steel mesh skeleton composite pipe; the pre-installed part 211 is sleeved on the circumferential outer side of the steel mesh skeleton composite pipe, and the external thread on the connecting part 21 is matched with the internal thread of the threaded sleeve 11; then the threaded sleeve 11 is rotated, and the connecting part 21 is pulled toward the limit ring 12 through the threaded structure, and finally abutted against the first sealing gasket 13; finally, the connection of another section of the steel mesh skeleton composite pipe is completed according to the above steps, and the connection of the two sections of the steel mesh skeleton composite pipe can be completed. The structure is simple, easy to use, and does not require professional personnel to operate.

[0029] So far, the technical scheme of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical schemes after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A connection structure of a steel wire mesh skeleton composite pipe, characterized in that: include: At least two mounting joints (1) are provided; each mounting joint (1) comprises a threaded sleeve (11) rotatably sleeved on the outer side of the wire mesh skeleton composite pipe, and a limiting ring (12) fixed on the wire mesh skeleton composite pipe and abutting against the threaded sleeve (11); an internal thread is provided on the inner side of the threaded sleeve (11); The connecting tube (2) comprises a connecting portion (21) matching the mounting joint (1) and a sealing portion (22) connected to the connecting portion (21); an external thread matching the internal thread is arranged on the circumferential outer side of the connecting portion (21); and the sealing portion (22) is suitable for abutting against the end of the wire mesh skeleton composite pipe.

2. The connection structure of a steel wire mesh skeleton composite pipe according to claim 1, characterized in that: A threaded hole (121) is provided on the limiting ring (12), and a clamping bolt (122) matching the threaded hole (121) is arranged in the threaded hole (121); a plurality of the clamping bolts (122) are evenly and spaced apart along the circumference of the limiting ring (12).

3. The connection structure of a steel wire mesh skeleton composite pipe according to claim 2, characterized in that: A guiding inclined surface (123) is formed on the limiting ring (12); the threaded sleeve (11) comprises a limiting portion (111) sleeved on the circumferential outer side of the wire mesh skeleton composite pipe, an inclined portion (112) matching the guiding inclined surface (123), and a fixing portion (113) connected to the connecting tube (2).

4. The connection structure of the steel wire mesh skeleton composite pipe according to claim 3, characterized in that: A first sealing gasket (13) is provided on a side of the limiting ring (12) away from the guiding inclined surface (123).

5. The connection structure of a steel wire mesh skeleton composite pipe according to claim 1, characterized in that: The connecting portion (21) comprises a pre-installation portion (211) adapted to be sleeved on the circumferential outer side of the wire mesh skeleton composite pipe and a pressing portion (212) connected to the pre-installation portion (211); the pressing portion (212) is inclined toward the middle of the connecting portion (21).

6. The connection structure of the steel wire mesh skeleton composite pipe according to claim 5, characterized in that: A second sealing pad (221) suitable for abutting against the steel wire mesh skeleton composite pipe is arranged on the sealing portion (22).

7. The connection structure of a steel wire mesh skeleton composite pipe according to claim 1, characterized in that: A support rod (114) is arranged on the threaded sleeve (11) for facilitating the rotation of the threaded sleeve (11).

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