Steel wire mesh framework pipe connecting structure

Abstract

The utility model relates to the technical field of pipe connection, and provides a steel wire mesh framework pipe connection structure, which comprises a pair of symmetrically arranged pipe bodies and a seat body, the end part of each pipe body is outwards and annularly folded and then is connected with a plurality of fan-shaped turnups which are uniformly distributed on the circumference, and an annular groove is enclosed between the inner concave surfaces of the plurality of fan-shaped turnups and the outer circular surface of the pipe body; the seat body is sleeved on the outer circular surface of the pipe body, and one end of the seat body is connected with the annular groove in an abutting manner and then is provided with a plurality of perforated support plates which are circumferentially and uniformly distributed and penetrate through the fan-shaped turnups along the radial direction; after the pair of pipe bodies are in sealed butt joint, the perforated supporting plates of the pair of base bodies are connected through bolts. According to the utility model, the seat body sleeved on the pipe body is clamped by the annular groove of each pipe body, and the plurality of perforated support plates connected through the bolts are used for replacing the existing flanges, so that the sealing butt joint of a pair of pipe bodies can be realized, the structure is simple, and the pipe fitting connection operation is more convenient.

Description

Technical Field

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

[0002] Wire mesh skeleton pipe is an industry name for wire mesh skeleton plastic composite pipe, which is a new type of improved steel skeleton plastic composite pipe. This pipe is made of plasticized high-strength steel wire cross-woven into a mesh as the skeleton and thermoplastic polyethylene fused together. The steel wire winding mesh is used as the skeleton reinforcement of the polyethylene plastic pipe, and high-density polyethylene (HDPE) is used as the core tube matrix. High-performance HDPE modified adhesive resin is used 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 the advantages of steel pipes and plastic pipes, so it is favored by the pipeline engineering industry.

[0003] In actual construction, two wire mesh skeleton pipes need to be connected in series to ensure the use length according to different situations. At present, the existing connection methods of wire mesh skeleton pipes include electric fusion sleeve connection, electric fusion flange connection, hot-melt socket flange connection, press flange connection, press clamp connection, etc. Among them, the flange connection method has flanges as independent accessories, which makes these connection methods have many accessories and complex structures; in addition, the steel wire layer in these connection methods is not effectively fixed, the working pressure is low (≤3.5Mpa), and it cannot be completely isolated from the medium flowing through the pipeline during operation. When subjected to high pressure (above 6.5Mpa), it is easy to cause water to flow through the steel wire layer, resulting in leakage and bulging of the pipeline, and even the detachment of the connection, which ultimately causes the pipeline to be damaged and fail. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a wire mesh skeleton pipe connection structure to solve the problems of the prior art connection method having many accessories, complex structure, and the steel wire layer not being effectively fixed, which easily leads to water leakage, resulting in the connection falling off and the pipe being damaged and failing.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wire mesh skeleton pipe connection structure, comprising a pair of symmetrically arranged pipe bodies and a seat body;

[0007] The end of each tube body is folded outwardly and connected to a plurality of fan-shaped flanges evenly distributed around the circumference, and an annular groove is formed between the inner concave surfaces of the plurality of fan-shaped flanges and the outer circumferential surface of the tube body;

[0008] The seat body is sleeved on the outer circumferential surface of the tube body, and one end of the seat body is in contact with the annular groove and is provided with a plurality of support plates with holes evenly distributed around the circumference and passing through the fan-shaped flanges in the radial direction;

[0009] After the pair of pipe bodies are sealed and butted, a pair of perforated support plates of the seat bodies are connected by bolts.

[0010] Optionally, the wall thickness of one end of the seat body that is in contact with the annular groove is greater than the width of the annular groove;

[0011] The width of the perforated support plate is greater than the distance between two adjacent fan-shaped flanges.

[0012] Optionally, a plurality of annular grooves distributed at equal intervals are provided on the outer circumferential surface of the tube body;

[0013] The inner wall of the seat body is provided with a plurality of annular barbs distributed at equal intervals;

[0014] The annular barbs are connected to the annular slots in a one-to-one corresponding manner.

[0015] Optionally, a sealing gasket is provided between the butted ends of a pair of the tube bodies.

[0016] Optionally, the inner diameter of the sealing gasket is greater than or equal to the inner diameter of the tube body, and the outer diameter is greater than or equal to the diameter of the outer convex surface of the fan-shaped flange.

[0017] Optionally, the cross section of the sealing gasket is T-shaped, and the inner sides of both sides of the T-shaped head can be abutted against the outer convex surfaces of the fan-shaped flanges of a pair of tube bodies.

[0018] Optionally, the sealing gasket is a rubber sealing gasket.

[0019] Optionally, each of the pipe bodies comprises an inner composite layer, a steel mesh and an outer composite layer which are sequentially arranged inside and outside;

[0020] A through hole is provided in the middle of each of the fan-shaped flanges, which passes through the inner composite layer, the steel mesh and the outer composite layer in sequence;

[0021] A positioning pin is installed inside the through hole;

[0022] One end of the positioning pin can be inserted into a concave hole formed on the outer circumferential surface of the seat body.

[0023] Optionally, the positioning pin is a conical pin.

[0024] Optionally, the fan-shaped flange and the perforated support plate are arranged crosswise and at intervals;

[0025] There are six fan-shaped flanges evenly distributed around the circumference of the axis of the tube body, and there are six perforated support plates evenly distributed around the circumference of the axis of the seat body.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] 1. The seat body mounted on the pipe body is clamped by the annular groove of each pipe body, and a plurality of perforated support plates connected by bolts are used to replace the existing flanges to achieve sealed docking of a pair of pipe bodies. The structure is simple and the pipe connection operation is more convenient.

[0028] 2. By passing the positioning pin through the through hole and inserting it into the concave hole, the wire mesh can be effectively fixed to prevent the wire mesh from moving, thereby improving the pressure-bearing capacity of the pipe body and avoiding the failure caused by the pipe connection falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0031] Figure 2 for Figure 1 Schematic diagram of the left view structure;

[0032] Figure 3 is a schematic diagram of the three-dimensional structure of the tube body;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the seat. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0040] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1 to Figure 4 As shown, the utility model provides a wire mesh skeleton pipe connection structure, including a pair of symmetrically arranged tube bodies 100 and seat bodies 200, the end of each tube body 100 is folded outward in an annular manner and connected to a plurality of circumferentially uniformly distributed fan-shaped flanges 110 (the cross section is a fan-shaped structure), and an annular groove is formed between the inner concave surfaces of the plurality of fan-shaped flanges 110 and the outer cylindrical surface of the tube body 100; the seat body 200 is sleeved on the outer cylindrical surface of the tube body 100, and one end of the seat body 200 is abutted and connected with the annular groove, and a plurality of circumferentially uniformly distributed perforated support plates 210 passing through the fan-shaped flanges 110 are radially provided; after the pair of tube bodies 100 are sealed and connected, the perforated support plates 210 of the pair of seat bodies 200 are connected by bolts 240.

[0042] Specifically, the end of each tube body 100 is first folded outward to form an annular flange, and then part of the annular flange continues to be folded 90° in the same direction to form a plurality of evenly spaced fan-shaped flanges 110 (the longitudinal section is similar to a hook); the main body of the seat body 200 is a cylindrical structure, which is sleeved on the tube body 100 and placed in an annular groove to achieve clamping and fixing; a plurality of perforated support plates 210 are arranged along the radial direction of one end of the seat body 200 and are evenly distributed around the axis of the seat body 200, and each perforated support plate 210 passes between every two adjacent fan-shaped flanges 110; the bolt 240 passes through the perforated support plate 210 and is tightened with a matching nut to tighten a pair of tube bodies 100, so that the annular flanges at their ends fit tightly together, thereby achieving a sealed docking of a pair of tube bodies 100. That is, by clamping the seat body 200 mounted on the tube body 100 through the annular groove of each tube body 100, and using multiple perforated support plates 210 connected by bolts 240 to replace the existing flanges, a pair of tube bodies 100 can be sealed and docked. The structure is simple and the pipe connection operation is more convenient.

[0043] The wall thickness of one end of the seat body 200 that contacts the annular groove is slightly greater than the width of the annular groove, and the width of the perforated support plate 210 is slightly greater than the distance between two adjacent fan-shaped flanges 110. In this way, they can be made to have an interference fit, with a high degree of firmness, and will not loosen after a pair of pipe bodies 100 are sealed and connected, thereby indirectly ensuring the sealing performance of the pipe fittings after connection.

[0044] The outer circumferential surface of the tube body 100 is provided with a plurality of equally spaced annular grooves 120, and the inner side wall of the seat body 200 is provided with a plurality of equally spaced annular barbs 220, which are connected to the annular grooves 120 in a one-to-one corresponding manner. In this way, the firmness of the seat body 200 after installation can be further improved.

[0045] In order to improve the sealing performance of the pair of tube bodies 100 after being butt-jointed, a sealing gasket 130 is provided between the butt-jointed ends of the pair of tube bodies 100 .

[0046] See also Figure 1 As shown, the inner diameter of the sealing gasket 130 is greater than or equal to the inner diameter of the tube body 100, and the outer diameter is greater than or equal to the diameter of the outer convex surface of the fan-shaped flange 110. In this way, it can be ensured that after being squeezed and deformed, it will not extend into the tube body 100 and hinder the flow of the medium.

[0047] The cross section of the sealing gasket 130 is T-shaped, and the inner sides of the two sides of the T-shaped head can be abutted against the outer convex surfaces of the fan-shaped flanges 110 of the pair of tube bodies 100. In this way, the centering of the sealing gasket 130 can be ensured during installation, so that it is coaxial with the pair of tube bodies 100.

[0048] In this embodiment, the sealing gasket 130 is preferably a rubber sealing gasket.

[0049] Each pipe body 100 includes an inner composite layer 101, a steel mesh 102 and an outer composite layer 103 which are sequentially arranged inside and outside. A through hole 111 which sequentially penetrates the inner composite layer 101, the steel mesh 102 and the outer composite layer 103 is provided in the middle of each fan-shaped flange 110. A positioning pin 112 is installed inside the through hole 111. One end of the positioning pin 112 can be inserted into a concave hole 230 provided on the outer circumferential surface of the seat body 200. That is, by passing the positioning pin 112 through the through hole 111 and inserting into the concave hole 230, the steel mesh 102 can be effectively fixed to prevent the steel mesh 102 from moving, thereby improving the pressure bearing capacity of the pipe body 100, and thus avoiding the situation where the pipe connection falls off and causes damage and failure.

[0050] In this embodiment, the positioning pin 112 is preferably a conical pin.

[0051] See also Figure 2 to Figure 4 As shown, the fan-shaped flanges 110 and the perforated support plates 210 are arranged in an intersecting manner, wherein six fan-shaped flanges 110 are evenly distributed around the axis of the tube body 100, and six perforated support plates 210 are evenly distributed around the axis of the seat body 200. After the six pairs of perforated support plates 210 of a pair of seats 200 are connected by bolts 240, a structure similar to a flange connection is formed, and the connection strength is high.

[0052] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A wire mesh skeleton pipe connection structure, comprising a pair of symmetrically arranged pipe bodies and a seat body, characterized in that: The end of each tube body is folded outwardly and connected to a plurality of fan-shaped flanges evenly distributed around the circumference, and an annular groove is formed between the inner concave surfaces of the plurality of fan-shaped flanges and the outer circumferential surface of the tube body; The seat body is sleeved on the outer circumferential surface of the tube body, and one end of the seat body is in contact with the annular groove and is provided with a plurality of support plates with holes evenly distributed around the circumference and passing through the fan-shaped flanges in the radial direction; After the pair of pipe bodies are sealed and butted, a pair of perforated support plates of the seat bodies are connected by bolts.

2. The wire mesh skeleton pipe connection structure according to claim 1, characterized in that: The wall thickness of one end of the seat body that is in contact with the annular groove is greater than the width of the annular groove; The width of the perforated support plate is greater than the distance between two adjacent fan-shaped flanges.

3. The wire mesh skeleton pipe connection structure according to claim 1, characterized in that: The outer circumferential surface of the tube body is provided with a plurality of annular grooves distributed at equal intervals; The inner wall of the seat body is provided with a plurality of annular barbs distributed at equal intervals; The annular barbs are connected to the annular slots in a one-to-one corresponding manner.

4. The wire mesh skeleton pipe connection structure according to any one of claims 1 to 3, characterized in that: A sealing gasket is arranged between the butted ends of a pair of pipe bodies.

5. The wire mesh skeleton pipe connection structure according to claim 4, characterized in that: The inner diameter of the sealing gasket is greater than or equal to the inner diameter of the tube body, and the outer diameter is greater than or equal to the diameter of the outer convex surface of the fan-shaped flange.

6. The wire mesh skeleton pipe connection structure according to claim 5, characterized in that: The cross section of the sealing pad is a T-shaped structure, and the inner sides of the two sides of the T-shaped head can be abutted against the outer convex surfaces of the fan-shaped flanges of a pair of tube bodies.

7. The wire mesh skeleton pipe connection structure according to claim 5 or 6, characterized in that: The sealing gasket is a rubber sealing gasket.

8. The wire mesh skeleton pipe connection structure according to claim 1, characterized in that: Each of the pipe bodies comprises an inner composite layer, a steel mesh and an outer composite layer which are sequentially arranged inside and outside; A through hole is provided in the middle of each of the fan-shaped flanges, which passes through the inner composite layer, the steel mesh and the outer composite layer in sequence; A positioning pin is installed inside the through hole; One end of the positioning pin can be inserted into a concave hole formed on the outer circumferential surface of the seat body.

9. The wire mesh skeleton pipe connection structure according to claim 8, characterized in that: The positioning pin is a conical pin.

10. The wire mesh skeleton pipe connection structure according to claim 1 or 8, characterized in that: The fan-shaped flanges and the perforated support plates are arranged crosswise and at intervals; There are six fan-shaped flanges evenly distributed around the circumference of the axis of the tube body, and there are six perforated support plates evenly distributed around the circumference of the axis of the seat body.

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