CN210531794U - Plastic steel winding pipe not prone to local collapse - Google Patents

Abstract

The utility model provides a difficult plastic steel winding pipe that takes place part and sink, the purpose is that the plastic layer of solving current plastic steel winding pipe easily drops, leads to the technical problem that the pipeline sinks. The adopted technical scheme is as follows: a plastic steel winding pipe not prone to local collapse comprises a pipe body, wherein the pipe body is formed by spirally winding a plastic steel belt, the plastic steel belt is composed of a base belt layer, a U-shaped steel belt and a watchband layer, the U-shaped steel belt is arranged on the surface of the base belt layer and extends along the length direction of the base belt layer, and an opening of the U-shaped steel belt faces towards the base belt layer; the left side and the right side of the U-shaped steel belt are provided with leveling parts, and the leveling parts are provided with a plurality of limiting through holes penetrating through the upper surface and the lower surface of the leveling parts along the length direction; the surface belt layer is arranged on the outer side of the U-shaped steel belt; the base band layer and the watchband layer wrap the surface of the U-shaped steel band through extrusion molding, and the base band layer and the watchband layer are welded into a whole through filling polyethylene in the limiting through hole corresponding to the part of the leveling part.

Description

Plastic steel winding pipe not prone to local collapse

Technical Field

The utility model relates to a pipeline equipment technical field, concretely relates to difficult plastic steel winding pipe that takes place local collapse.

Background

The plastic steel winding pipe is a pipe made by bonding a plastic layer and a steel belt together and spirally winding and welding, and has the advantages of corrosion resistance, light weight, simple and convenient installation, large flow rate, long service life and the like. Compared with the traditional pipes made of high-energy material, such as cement pipes, iron pipes, ceramic pipes and the like, the novel energy-saving and environment-friendly pipe is more energy-saving and environment-friendly, and has wide application in the fields of municipal engineering, road engineering, hydraulic engineering, agricultural engineering and the like.

Because the expansion with heat and contraction with cold proportion of steel band and plastic layer are different, when weather changes, and cold and hot alternation or overcooling and overheating occur in the environment where the plastic steel winding pipe is located, the plastic layer is easy to separate from the steel band, and the plastic layer falls off from the steel band, thereby causing the local collapse of the pipeline. In view of the above, there is a need to develop a plastic-steel wound pipe that is not prone to partial collapse.

Disclosure of Invention

An object of the utility model is to provide a difficult plastic steel winding pipe that takes place local collapse.

In order to achieve the above object, the utility model adopts the following technical scheme:

a difficult plastic steel winding pipe that takes place local collapse, includes the pipe main part, the pipe main part is made by the spiral winding of plastic steel strip, the plastic steel strip includes:

a base tape layer made of polyethylene;

the U-shaped steel strip is arranged on the surface of the base belt layer and extends along the length direction of the base belt layer, and the opening of the U-shaped steel strip faces the base belt layer; the left side and the right side of the U-shaped steel belt are provided with leveling parts, and the leveling parts are provided with a plurality of limiting through holes penetrating through the upper surface and the lower surface of the leveling parts along the length direction;

a top tape layer made of polyethylene and disposed outside the U-shaped steel belt; the base band layer and the watchband layer wrap the surface of the U-shaped steel band through extrusion molding, and the base band layer and the watchband layer are welded into a whole through filling polyethylene in the limiting through hole corresponding to the part of the leveling part.

Preferably, the U-shaped steel strip and the surface belt layer are symmetrically arranged on two sides of the base belt layer.

Preferably, the base band layer and the U part of the U-shaped steel band enclose a hollow cavity.

Preferably, flanges are respectively arranged at two ends of the pipe main body, and the pipe main body is fixedly connected with the adjacent pipe main body through bolts penetrating through the flanges.

Preferably, one end of the tube main body is provided with an insertion part, and the other end is provided with an accommodating part; the inserting part is provided with a stepped pipe, and the accommodating part is provided with a stepped groove matched with the stepped pipe; the global cover of ladder pipe is equipped with the sealing washer.

Preferably, the terminal surface of ladder pipe is provided with the locating piece, the ladder groove sets up the constant head tank with the locating piece adaptation.

Preferably, the ladder pipe sets up the linear degressive multistage of external diameter, the ladder groove sets up the linear degressive multistage of internal diameter and with the ladder pipe one-to-one.

The beneficial effects of the utility model are concentrated and embodied, the utility model discloses set up the pars planata in the left and right sides of U shaped steel area to set up a plurality of spacing through-holes in the pars planata; heating polyethylene to a molten state, and covering the polyethylene on the surface of the U-shaped steel strip to form a base band layer and a watchband layer which are wrapped on the surface of the U-shaped steel strip; meanwhile, the molten polyethylene can be filled in the limiting through hole of the flat part of the U-shaped steel belt and is welded with the base belt layer and the watchband layer on the inner side and the outer side of the U-shaped steel belt into a whole. In this way, the base band layer and the watchband layer are welded into a whole by the edges of the left side and the right side, and the parts corresponding to the flat parts are also welded into a whole by the polyethylene filled in the limiting through holes; even if the surface of the U-shaped steel belt is separated from the base belt layer or the watchband layer, the base belt layer and the watchband layer can still be well attached to the surface of the U-shaped steel belt due to the interaction of the base belt layer and the watchband layer, and the inner wall of the pipeline cannot collapse; and the polyethylene filled in the limiting through holes can limit the U-shaped steel belt, so that the U-shaped steel belt cannot move relative to the base belt layer or the watchband layer, and the U-shaped steel belt is prevented from being deviated.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of a U-shaped steel belt provided with limiting through holes;

FIG. 3 is a schematic view of the structure of the insertion portion;

FIG. 4 is a schematic structural view of the receiving portion;

reference numerals: 1. a tube body; 2. a base tape layer; 3. a U-shaped steel belt; 4. a leveling section; 5. a limiting through hole; 6. a top tape layer; 7. a cavity; 8. a flange; 9. an insertion portion; 10. an accommodating portion; 11. a stepped pipe; 12. a stepped groove; 13. positioning blocks; 14. and (6) positioning a groove.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In addition, the present invention defines the side toward the base tape layer 2 as the inner side.

Embodiments of the present invention will be described in detail below with reference to fig. 1 to 4.

The embodiment of the utility model provides a difficult plastic steel winding pipe that takes place local collapse, this plastic steel winding pipe include pipe main part 1, pipe main part 1 is made by plastic steel strip spiral winding, the plastic steel strip includes:

and a base tape layer 2 made of polyethylene.

A U-shaped steel strip 3 provided on the surface of the base belt layer 2 and extending in the longitudinal direction of the base belt layer 2, the U-shaped steel strip 3 having an opening facing the base belt layer 2; the left and right sides of U shaped steel area 3 sets up leveling 4, leveling 4 sets up a plurality of spacing through-holes 5 that run through its upper and lower surface along length direction.

A cover tape layer 6 made of polyethylene and disposed outside the U-shaped steel tape 3; the base band layer 2 and the watchband layer 6 wrap the surface of the U-shaped steel band 3 through extrusion molding, and the base band layer 2 and the watchband layer 6 are welded into a whole through filling polyethylene in the limiting through hole 5 corresponding to the leveling part 4. It should be understood that the base band layer 2 and the band layer 6 can be extruded on the surface of the U-shaped steel band 3 by an extruder, similar to the production process of the extruded insulated cable, and will not be described herein. The base band layer 2 and the band layer 6 at both ends of the tube main body 1 exceed the U-shaped steel band 3, wrap the U-shaped steel band 3 completely, and prevent the U-shaped steel band 3 from being exposed to the outside.

The embodiment of the utility model is explained below, the utility model is provided with the leveling parts 4 at the left and right sides of the U-shaped steel belt 3, and the leveling parts 4 are provided with a plurality of limiting through holes 5; heating polyethylene to a molten state, and covering the polyethylene on the surface of the U-shaped steel belt 3 to form a base belt layer 2 and a watchband layer 6 which are wrapped on the surface of the U-shaped steel belt 3; meanwhile, the molten polyethylene can be filled in the limiting through holes 5 of the flat parts 4 of the U-shaped steel belt 3 and is welded with the base belt layer 2 and the watchband layer 6 on the inner side and the outer side of the U-shaped steel belt 3 into a whole. In this way, the band layer 2 and the band layer 6 are integrally welded not only to the edges on the left and right sides but also to the portions corresponding to the flat portions 4 by the polyethylene filled in the stopper through holes 5; even if the surface of the U-shaped steel belt 3 is separated from the base belt layer 2 or the watchband layer 6, the base belt layer 2 and the watchband layer 6 can still be well attached to the surface of the U-shaped steel belt 3 due to the interaction of the base belt layer 2 and the watchband layer 6, and the inner wall of the pipeline cannot collapse; and fill and can also carry on spacingly at the polyethylene of spacing through-hole 5 to U shaped steel area 3, make U shaped steel area 3 unable baseband layer 2 or watchband layer 6 relatively remove to avoid U shaped steel area 3 to take place the skew.

As the utility model discloses a further optimization, synthetic hollow cavity 7 is enclosed with U portion of U shaped steel area 3 in baseband layer 2. It should be understood that when the base band layer 2 and the band layer 6 are extruded on the surface of the U-shaped steel band 3, a bar corresponding to the U portion of the U-shaped steel band 3 is provided, the U-shaped steel band 3 travels in the longitudinal direction of the bar, the U portion thereof is filled with the bar, and the molten polyethylene is difficult to enter, i.e., the hollow cavity 7 is formed. Thus, the weight of the pipe body 1 is reduced, the consumption of polyethylene materials is reduced, the cost is reduced, and the economic benefit is improved.

Further, two ends of the pipe main body 1 are respectively provided with a flange 8 and fixedly connected with another adjacent pipe main body 1 through bolts penetrating through the flanges 8. It will be appreciated that providing flanges 8 at each end of the pipe body 1 facilitates the connection of the pipe body 1 to the pipe body 1.

Further, an insertion portion 9 is provided at one end of the tube main body 1, and an accommodation portion 10 is provided at the other end; the insertion part 9 is provided with a stepped pipe 11, and the accommodating part 10 is provided with a stepped groove 12 matched with the stepped pipe 11; the global cover of ladder pipe 11 is equipped with the sealing washer. It should be understood that the insertion portion 9 and the receiving portion 10 are made of rigid materials and are welded, soldered, or bonded by an adhesive to the pipe body 1. The two pipe bodies 1 can be connected into a whole by inserting the stepped pipe 11 of the insertion part 9 into the stepped groove 12 of the accommodating part 10 and screwing the bolt into the flange 8; the outer diameter of the stepped pipe 11 is smaller than the inner diameter of the corresponding stepped groove 12, and the sealing ring is extruded between the stepped pipe 11 and the stepped groove 12, so that the sealing of the joint of the two pipe main bodies 1 can be formed.

Further, the terminal surface of ladder pipe 11 is provided with locating piece 13, ladder groove 12 sets up the constant head tank 14 with locating piece 13 adaptation. It should be understood that, the positioning block 13 is arranged on the end face of the stepped pipe 11, and the positioning groove 14 adapted to the positioning block 13 is arranged on the stepped groove 12, so that firstly, when the two pipe main bodies 1 are connected, alignment and positioning can be performed more quickly, and the bolt holes of the flanges 8 of the two pipe main bodies 1 are aligned, so that the connection of the pipe main bodies 1 is more convenient; secondly, the connection of the two pipe main bodies 1 is more stable, and the leakage of the joint caused by the relative displacement between the two pipe main bodies 1 is avoided.

Further, the stepped pipe 11 is provided with a plurality of stages with linearly decreasing outer diameters, and the stepped groove 12 is provided with a plurality of stages with linearly decreasing inner diameters and is in one-to-one correspondence with the stepped pipe 11. It should be understood that, a multi-stage stepped pipe 11 is disposed at one end of the pipe body 1, and a corresponding stepped groove 12 is adapted at the other end, when the pipe body 1 is connected with another pipe body 1, the stepped pipe 11, the stepped groove 12 and a sealing ring therebetween form a multi-stage seal, further improving the sealing performance at the joint of the two pipe bodies 1.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, and these changes and modifications are intended to fall within the scope of the invention.

Claims (6)

1. The utility model provides a difficult plastic steel winding pipe that takes place local collapse which characterized in that: including a pipe main part (1), pipe main part (1) is made by plastic steel strip spiral winding, the plastic steel strip includes:

a base tape layer (2) made of polyethylene;

a U-shaped steel strip (3) which is arranged on the surface of the base belt layer (2) and extends along the length direction of the base belt layer (2), wherein the opening of the U-shaped steel strip (3) faces the base belt layer (2); the left side and the right side of the U-shaped steel belt (3) are provided with a leveling part (4), and the leveling part (4) is provided with a plurality of limiting through holes (5) penetrating through the upper surface and the lower surface of the leveling part along the length direction;

a top tape layer (6) made of polyethylene and disposed outside the U-shaped steel belt (3); the base band layer (2) and the watchband layer (6) are wrapped on the surface of the U-shaped steel band (3) through extrusion molding, and the portions, corresponding to the leveling portions (4), of the base band layer (2) and the watchband layer (6) are welded into a whole through polyethylene filled in the limiting through holes (5).

2. The plastic-steel wound pipe not prone to partial collapse according to claim 1, wherein: the base band layer (2) and the U part of the U-shaped steel strip (3) enclose a hollow cavity (7).

3. A pipe wound with plastic steel less prone to partial collapse according to any one of claims 1 to 2, wherein: flanges (8) are respectively arranged at two ends of the pipe main body (1), and the pipe main body is fixedly connected with another adjacent pipe main body (1) through bolts penetrating through the flanges (8).

4. The plastic-steel wound pipe not prone to partial collapse according to claim 3, wherein: one end of the tube main body (1) is provided with an inserting part (9), and the other end is provided with an accommodating part (10); the inserting part (9) is provided with a stepped pipe (11), and the accommodating part (10) is provided with a stepped groove (12) matched with the stepped pipe (11); the global cover of ladder pipe (11) is equipped with the sealing washer.

5. The plastic-steel wound pipe not prone to partial collapse according to claim 4, wherein: the terminal surface of ladder pipe (11) is provided with locating piece (13), ladder groove (12) set up constant head tank (14) with locating piece (13) adaptation.

6. The plastic-steel wound pipe not prone to partial collapse according to claim 5, wherein: the ladder pipe (11) is provided with a plurality of stages with linearly decreasing outer diameters, and the ladder groove (12) is provided with a plurality of stages with linearly decreasing inner diameters and corresponds to the ladder pipe (11) one to one.

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