CN207729118U - The double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding - Google Patents

Abstract

The utility model relates to a double-socket rigidity enhancement structure for electric fusion welding of a B-shaped pipe with a winding structure wall, which comprises two pipe bodies with the same diameter sockets, and the socket ends of the two pipe bodies are connected coaxially and oppositely, at the joint of the two pipe bodies Covered with a reinforced structure, the reinforced structure is symmetrically overlapped with the two sockets; the reinforced structure includes a reinforced belt, which is coated on the outer wall of the pipe body connection, and the inner ring surface that fits the pipe body is provided with after electrofusion The electric fusion belt that can fix the reinforcing belt to the pipe body has reinforcing ribs on the outer ring surface, and the reinforcing ribs protrude from the outer wall at both ends of the pipe body connection. The reinforcing ribs are arranged in one, two or Multiple turns, two adjacent reinforcing ribs are arranged in parallel and at intervals, and their axis coincides with or is arranged in parallel with the axis of the reinforcing belt. This structure overcomes the problem of weak strength at the interface of the large-diameter (diameter greater than 1200mm) high-rigidity winding structure wall B-type pipe system, ensuring the safe use of large-diameter pipes.

Description

Double-socket rigidity-enhanced structure of double-socket electrofusion-welded B-type tube with winding structure

technical field

The utility model relates to the technical field of pipe connection, in particular to a double-socket rigidity enhancement structure for electric fusion welding of a B-shaped pipe with a winding structure wall.

Background technique

Thermoplastic polyethylene (PE)/polypropylene (PP) winding B-type winding structure wall pipe is a pipe product formed by spiral winding of resin material hot extrusion tape. Currently, pipe diameters of 300-5000mm can be prepared, which are obtained through different diameters. The steel round mold is realized, and the main connection method of the pipe is the socket type electric fusion welding method for the sealed connection between the pipes.

Large-diameter thermoplastic polyethylene (PE)/polypropylene (PP) winding B-type structural wall pipe is an environmentally friendly product used in the field of water intake and drainage. Pipe application With the continuous expansion of the city scale and the continuous increase of industrial project construction, the pipe diameter and drainage volume increase and the size continues to increase. The pipe wall thickness of large-diameter pipes increases with the diameter, and the design requirements for pipe stiffness can be met by increasing the thickness. However, it is found that the joint of the pipeline joint has become the weakest link in the pipeline system, because the structural thickness of the pipe body increases, but the structural thickness of the joint joint of the pipeline does not increase accordingly, which shows that the ring stiffness of the pipe body is higher than that of the joint ring. stiffness. According to the pipe material standard, the rigidity of the pipe interface ring is greater than that of the pipe body, which is a qualified product. The current large-diameter high-rigidity pipe has a thin interface and is in a state that does not meet the product quality requirements.

Moreover, at present, the interface form of thermoplastic winding B-type structural wall pipes is generally in the form of socket electric fusion welding. The sockets and spigots at both ends of the pipe are solid-walled pipe sections with a certain thickness. Due to the use of socket electrofusion welding, the wall thickness of the socket and socket should not be too thick, which is not conducive to extrusion electrofusion welding. The thickness of the socket joint wall is generally less than 60mm. When the caliber of the high-stiffness pipe is greater than 1200mm, the ring stiffness of the socket 60mm combined with the wall thickness will be smaller than that of the pipe body, making the pipe joint a weak point of the pipe system.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of winding structure wall B which can not only realize the sealing connection of the pipeline, but also meet the pressure bearing capacity of the pipeline interface and improve the ring stiffness of the connection. Type tube electric fusion welding double socket rigidity enhanced structure.

In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:

Wound structure wall B-type tube electrofusion welding double socket rigidity enhancement structure, characterized in that: it includes two pipe bodies with the same diameter sockets, the socket ends of the two pipe bodies are connected coaxially and oppositely, and the joint of the two pipe bodies is coated There is a reinforcement structure, and the reinforcement structure is symmetrically overlapped with the two sockets; the reinforcement structure includes a reinforcement belt, and the reinforcement belt is covered on the outer wall of the connection of the pipe body, and the inner ring surface of the pipe body is fitted with a The electric fusion belt that can fix the reinforcement belt to the pipe body after electric fusion has reinforcement ribs on its outer ring surface. There is one circle, two circles or more circles in the direction, and two adjacent reinforcing ribs are arranged in parallel and at intervals, and their axis coincides with or is arranged in parallel with the axis of the reinforcing belt.

A further technical solution is: the width of the reinforcing belt is at least 180mm.

A further technical solution is: the reinforcing rib is a hollow tubular structure.

A further technical solution is: the cross-section of the reinforcing rib is in the form of a circular ring, an arch or a "Xi"-shaped structure.

A further technical solution is that: the cross-section of the reinforcing rib is a rectangular strip structure.

A further technical solution is: auxiliary ribs are arranged between the reinforcing ribs, the auxiliary ribs are fixed by adjacent reinforcing ribs, and the auxiliary ribs, reinforcing ribs and reinforcing belts form a closed ring-shaped cavity structure.

A further technical solution is: the width of the electric fusion belt is 59-120mm, including a plurality of symmetrically arranged at the junction of the two pipe bodies, and the plurality of electric fusion belts are arranged in parallel and at intervals.

A further technical solution is: the pipe body is made of thermoplastic polyethylene or polypropylene resin material.

The beneficial effects produced by adopting the above-mentioned technical scheme are:

It overcomes the problem of weak strength at the interface of the large-diameter high-rigidity winding structure wall B-type pipe system, ensuring the safe use of large-diameter pipes. The structure adopts the connection form of double sockets, so that the connection of large-diameter pipes is not limited by its thickness, and it is easy to install. The electric fusion welding method is adopted outside the interface, so that the two sets of pipes with opposite sockets can be connected by means of reinforcing belts. The reinforcement belt increases the strength of the connection, and the setting of the reinforcement rib utilizes the structural wall to increase the moment of inertia of the pipe section to increase the stiffness of the interface to meet the design requirements and at the same time realize the pressure bearing capacity of the pipe interface.

Moreover, the non-helical structure of the reinforcing ribs facilitates the inward application of pressure between the two reinforcing ribs, which is beneficial to the installation of the pipe and the sealing operation of the pipe.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view of the reinforcement rib described in the utility model;

Fig. 3 is a schematic structural view of the reinforcing rib described in the utility model;

Fig. 4 is a schematic structural view of the reinforcement rib described in the utility model;

Fig. 5 is a schematic structural view of the reinforcement rib described in the present invention;

Fig. 6 is a schematic diagram of the installation structure of the auxiliary rib described in the present invention.

Detailed ways

Below in conjunction with the accompanying drawings in the utility model embodiment, the technical solution in the utility model embodiment is clearly and completely described, obviously, the described embodiment is only a part of the utility model embodiment, rather than all implementation example. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways that are different from those described here, and those skilled in the art can do so without violating the connotation of the utility model. Under the circumstances, similar promotion is done, so the utility model is not limited by the specific embodiments disclosed below.

As shown in Fig. 1, the double-socket rigidity-increased structure of B-type pipe with winding structure wall electrofusion welding includes two pipe bodies 10 with the same diameter sockets, and the socket ends of the two pipe bodies 10 are coaxially connected to each other, and the two pipe bodies 10 The joint of the pipe body 10 is coated with a reinforcement structure, which is symmetrically overlapped with the two sockets; 10 is fitted with an electric fusion belt 3 that can fix the reinforcing belt 1 and the pipe body 10 after electric fusion, and a reinforcing rib 2 is provided on the outer annular surface, and the reinforcing rib 2 protrudes from the tube body. On the outer wall at both ends of the junction of the body 10, the reinforcing ribs are provided with one circle, two or more circles along the circumference of the pipe body 10, and the adjacent two reinforcing ribs 2 are arranged in parallel and at intervals, and their axis coincides with the axis of the reinforcing band 1 or Parallel setting.

This structure overcomes the problem of weak strength at the interface of the large-diameter (diameter greater than 1200mm) high-rigidity winding structure wall B-type pipe system, ensuring the safe use of large-diameter pipes. The structure adopts the connection form of double sockets, so that the connection of large-diameter pipes is not limited by its thickness, which is convenient for installation. The electric fusion welding method is adopted outside the interface, so that the two sets of pipe bodies 10 with opposite sockets can be connected with the reinforcement belt 1. For connection, the strength of the connection is increased through the reinforcement band 1, and the setting of the reinforcement rib 2 uses the structural wall to increase the moment of inertia of the pipe section to improve the interface stiffness to meet the design requirements and simultaneously realize the pressure bearing capacity of the pipe interface.

Moreover, the non-helical structure of the reinforcing ribs 2 is convenient for applying pressure inwardly between the two reinforcing ribs 2, which is beneficial to the installation of the pipe and the sealing operation of the pipe.

Further, in order to ensure the connection strength between the reinforcement strip 1 and the pipe body 10, the width of the reinforcement strip 1 should be at least 180mm, that is, the overlapping length between the reinforcement strip 1 and the pipe body 10 on each side should not be less than 90mm.

Since the ring rigidity is related to the diameter, the larger the diameter, the greater the ring rigidity, so the reinforcing rib 2 is a hollow tubular structure, which increases the use strength of the joint and saves materials. As shown in Figures 2 to 4, the cross section of the reinforcing rib 2 is in the form of a circular ring, an arch or a "冂"-shaped structure.

As shown in FIG. 5 , of course, the reinforcing rib 2 can also adopt a vertical rib structure, such as a strip structure with a rectangular cross section, which also has a certain height and uses smaller materials.

As shown in Figure 6, auxiliary ribs 6 are also provided between the reinforcing ribs 2, and the auxiliary ribs 6 are fixed by the adjacent reinforcing ribs 2, and the auxiliary ribs 6, reinforcing ribs 2 and reinforcing band 1 form a closed annular cavity body structure. With the help of this design, the overall peripheral width of the reinforced structure is increased, the ability of the interface to resist deformation is improved, and the stiffness of the interface is improved to better meet the requirements of product design standards. Among them, the auxiliary rib 6 is wrapped and installed after the reinforcement belt 1 is installed.

Wherein, the width of the electric fusion belt 3 is 59-120mm, including a plurality of symmetrically arranged at the junction of the two pipe bodies 10, and the plurality of electric fusion belts 3 are arranged in parallel and at intervals. Due to the large diameter of the pipe body 10, there is an error in the processing size, and the two pipe bodies 10 cannot guarantee that the dimensions are exactly the same. The body 10 is not fused, and the sealing performance and connection strength are poor.

Specifically, the pipe body 10 is made of thermoplastic polyethylene or polypropylene resin material.

The above are only preferred embodiments of the utility model, and anyone who makes some simple modifications, deformations and equivalent replacements to the utility model according to the content of the utility model all falls within the protection scope of the utility model.

Claims (8)

1. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding, it is characterised in that：Have including two identical straight The tube body (10) of diameter socket, the socket end coaxially opposite connection of two tube bodies (10), increasing is coated in the junction of two tube bodies (10) Strong structure, the enhancing structure are symmetrically overlapped with two sockets；The enhancing structure includes enhancing band (1), and the enhancing band (1) is wrapped It overlays on the outer wall of tube body (10) junction, the interior side ring surface being bonded with tube body (10) is equipped with can will enhance after electric smelting Band (1) and the fixed electric smelting band (3) of tube body (10), outer side ring surface are equipped with enhancing muscle (2), and the enhancing muscle (2) protrudes from The outer wall at tube body (10) junction both ends, the enhancing muscle (2) are circumferentially provided with a circle, two circles or multi-turn, phase along tube body (10) Two adjacent enhancing muscle (2) are parallel and interval setting, axis are overlapped or are arranged in parallel with the axis of enhancing band (1).

2. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 1, feature exist In：The width of the enhancing band (1) is at least 180mm.

3. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 1, feature exist In：The enhancing muscle (2) is hollow tubular structure.

4. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 3, feature exist In：The section of the enhancing muscle (2) is in circular ring shape, in arch or " Jiong " character form structure.

5. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 1, feature exist In：The strip structure of the rectangular in cross-section of the enhancing muscle (2).

6. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 1, feature exist In：Auxiliary bar (6) is additionally provided between the enhancing muscle (2), auxiliary bar (6) is fixed by adjacent enhancing muscle (2), auxiliary bar (6), enhancing muscle (2) and enhancing band (1) three surround closed ring-shaped cavity structure.

7. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 1, feature exist In：The width of the electric smelting band (3) be 59~120mm, include it is symmetrically arranged a plurality of with the junction of two tube bodies (10), it is a plurality of Electric smelting band (3) is parallel and interval is arranged.

8. the double socket rigidity enhancing structures of winding structure Type B pipe electric fusion welding according to claim 1, feature exist In：The tube body (10) is thermoplastic polyethylene or polyacrylic resin material.