CN217108582U

CN217108582U - Compression-resistant anti-cracking anti-deformation polyethylene double-wall corrugated pipe

Info

Publication number: CN217108582U
Application number: CN202220865828.3U
Authority: CN
Inventors: 韩力; 赵建华; 张聪; 陈焕静
Original assignee: Ad Pipeline Tianjin Co ltd
Current assignee: Ad Pipeline Tianjin Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-02
Anticipated expiration: 2032-04-14

Abstract

The utility model provides a compression-resistant, anti-cracking and anti-deformation polyethylene double-wall corrugated pipe, which comprises an inner pipe wall with a tubular structure and an outer pipe wall sleeved outside the inner pipe wall, wherein the outer pipe wall is of a corrugated structure; the outer pipe wall comprises a plurality of wave wall bulges which are arranged, a plurality of annular cavities with trapezoidal sections are formed between the wave wall bulges and the inner pipe wall, the short sides of the trapezoidal structures are far away from the inner pipe wall, and flexible foaming materials are filled in the annular cavities and used for buffering external force. The utility model discloses can improve the shock resistance of the ripple structure of double-walled bellows outer wall, when the bellows receives external force striking, avoid appearing the condition that the body flattens or ftractures in the transportation.

Description

Anti-compression anti-cracking anti-deformation polyethylene double-wall corrugated pipe

Technical Field

The utility model relates to a double-walled bellows technical field, concretely relates to anti-cracking type polyethylene double-walled bellows that preapres for an unfavorable turn of events of resistance to compression.

Background

The current polyethylene double-wall corrugated pipe mainly comprises an inner layer and an outer layer, a plurality of sealed cavities are formed between the inner layer and the outer layer, and in the pipe transportation and construction process, due to the action of external forces such as collision and extrusion, the corrugated structure on the outer wall of the pipe is inwards concave and deformed, and the condition that the pipe is integrally flattened or cracked is easy to occur. If the pipe has defects in the transportation process, the performance is unqualified and the pipe is wasted. If the pipe with the defects is not found in time in the construction process, hidden quality troubles are buried for later use.

SUMMERY OF THE UTILITY MODEL

In view of this, the to-be-solved problem of the utility model is to provide a resistance to compression is anti splits shape polyethylene double-wall corrugated pipe of preapring for an unfavorable turn of events, can improve the shock resistance of the ripple structure of double-wall corrugated pipe outer wall, when the bellows receives external force striking, the condition that the body flattens or ftractures appears in avoiding the transportation.

In order to solve the technical problem, the utility model adopts the technical scheme that:

the pressure-resistant, crack-resistant and deformation-resistant polyethylene double-wall corrugated pipe comprises an inner pipe wall of a tubular structure and an outer pipe wall sleeved outside the inner pipe wall, wherein the outer pipe wall is of a corrugated structure;

the outer pipe wall comprises a plurality of wave wall bulges which are arranged in an array mode, a plurality of annular cavities with trapezoidal cross sections are formed between the wave wall bulges and the inner pipe wall, the short sides of the trapezoidal structures are far away from the inner pipe wall, and flexible foaming materials are filled in the annular cavities and used for buffering external force.

Further, the flexible foam material may be a polyurethane foam material.

Furthermore, a reinforcing rib is arranged between the two adjacent wave wall protrusions, and the connecting stability between the two wave wall protrusions is improved.

Furthermore, the corrugated pipe comprises a first joint and a second joint which are respectively arranged at two ends of the corrugated pipe;

the first joint comprises a first circular pipe with a cylindrical structure and a sealing fastening ring arranged on the outer wall of the first circular pipe, the sealing fastening ring comprises a plurality of sealing fastening pieces arranged at intervals, and the sealing fastening pieces are made of elastic compressible materials;

the second connects the adapter sleeve that the outer wall screw thread that has second pipe and second pipe cup jointed, a plurality of fastening through-holes have been seted up to the lateral wall of second pipe, fastening through-hole sets up with sealed mounting plate relatively.

Furthermore, the sealing fastening piece is connected with the first round pipe through the reinforcing sealing piece with the cross section of a trapezoid structure, and the short side of the trapezoid structure is far away from the outer wall of the first round pipe.

Further, the short side width of the reinforced sealing piece is not smaller than the width of the fastening through hole, and the distance between two parallel sides of the reinforced sealing piece is not larger than the height of the fastening through hole.

Furthermore, a plurality of sealing fastening rings are arranged on the outer wall of the first circular tube at intervals, and different sealing fastening pieces on the sealing fastening rings are alternately arranged.

Furthermore, the inner wall of second pipe is provided with the design ring that is used for supporting the second pipe, avoids the second pipe connection in-process to produce the deformation.

Further, the sizing ring is made of a metal material.

Furthermore, the shaping ring is made of a plastic material which is not easy to deform.

The utility model has the advantages and positive effects that:

through filling flexible expanded material in the ring chamber between interior pipe wall and the outer pipe wall, when tubular product received external force in the work progress, when crooked or pressurized, flexible expanded material cushions external force and dispersion conduction, can prolong the time of the atress deformation of tubular product, the tubular product inner and outer wall has sufficient time to produce elastic deformation, can reduce the condition of the too big and fracture of atress in the tubular product transportation, simultaneously because expanded material has certain supporting role to the outer wall, make the tubular product outer wall be difficult to warp, and then improve the ripple construction's of double-walled bellows outer wall shock resistance, when the bellows receives external force striking, avoid appearing the condition that the body flattens or the fracture in the transportation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an overall structure diagram of a compression-resistant, crack-resistant, deformation-resistant polyethylene double-wall corrugated pipe of the present invention;

in the figure: 1. an outer tube wall; 101. reinforcing ribs; 2. an inner pipe wall; 3. a flexible foam material; 4. a first joint; 401. a first circular tube; 402. sealing the fastening tab; 5. a second joint; 501. a second circular tube; 502. fastening through holes; 503. fastening sleeves; 6. and (5) shaping rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the utility model provides a resistance to compression is anti splits shape polyethylene double-walled bellows of preapring for an unfavorable turn of events, including the interior pipe wall 2 and the outer pipe wall 1 of tubular structure, the outside of interior pipe wall 2 is located to outer pipe wall 1 fixed cover. The outer tube wall 1 is provided with a plurality of wave wall bulges arranged in an array manner, so that the outer tube wall 1 is of a corrugated structure. A plurality of sealed annular cavities are formed between the inner pipe wall 2 and the outer pipe wall 1, flexible foaming materials 3 are arranged in the annular cavities, when the pipe is subjected to external force, bending or pressure in the transportation or construction process, the flexible foaming materials 3 support the inner pipe wall 2 and the outer pipe wall 1, the external force is buffered and dispersed and conducted, the stress deformation process of the whole pipe is prolonged, the inner pipe wall 2 and the outer pipe wall 1 of the pipe have enough time to generate elastic deformation, and the inner pipe wall 1 and the outer pipe wall 1 of the pipe cannot crack due to sudden overlarge stress; because the foaming material has certain supporting effect to the outer pipe wall 1, when the outer pipe wall 1 of the pipe is extruded, the pipe is not easy to deform and dent. And the flexible foaming material 3 has small density and light weight, the weight of the original corrugated pipe is hardly changed, and the characteristics of light weight and convenient construction of the original pipe are reserved.

Preferably, the flexible foam material 3 may be a polyurethane foam material, the polyurethane foam material may be foamed in a manner of block, molding, spraying polyurethane foam plastic, or the like, and the polyurethane foam plastic may be directly sprayed into the wave wall protrusions during production, so as to fill the flexible foam material 3.

The cross-section of the annular cavity is of a trapezoidal structure, and the short edge of the trapezoidal structure is far away from the inner pipe wall 2. The reinforcing ribs 101 are arranged between the two adjacent wave wall bulges and used for improving the connection stability between the two wave wall bulges, further ensuring the strength of the outer pipe wall 1 and avoiding the sinking of the outer pipe wall 1 caused by stress.

The both ends of double-walled bellows coaxial coupling are provided with first joint 4 and second respectively and connect 5, and first joint 4 is including the first pipe 401 (first pipe 401 and outer pipe wall 1 coaxial coupling, and integrated into one piece) of cylindrical structure and set up in the sealing tight ring of the outer wall of first pipe 401, and sealing tight ring is including the sealing fastening piece 402 that a plurality of intervals set up, and sealing fastening piece 402 is the compressible material of elasticity for sealing fastening piece 402 can be by compressive deformation. The second joint 5 comprises a second circular tube 501 (the second circular tube 401 is coaxially connected with the outer tube wall 1, and is integrally formed) and a fastening sleeve 503 which is in threaded sleeve connection with the outer wall of the second circular tube 501, a plurality of fastening through holes 502 are formed in the side wall of the second circular tube 501, and all the fastening through holes 502 are arranged opposite to the sealing fastening piece 402. During the use, the free end of sealed mounting plate 402 passes through corresponding fastening through-hole 502 and taut, makes first pipe 401 hug closely the second pipe 501 inner wall, closes the tight sleeve 503 soon, and tight sleeve 503 compresses tightly the free end of sealed mounting plate 402 between tight sleeve 503 and second pipe 501, guarantees the stability that tight sleeve 503 closes soon, accomplishes the sealing connection between first joint 4 and the second joint 5.

Sealing fastening piece 402 is connected with first pipe 401 for the reinforcement sealing piece of trapezium structure through the cross-section, and the outer wall setting of first pipe 401 is kept away from to the minor face of trapezium structure, and the minor face width of reinforcing sealing piece is not less than fastening hole 502 width setting, and when installing sealing fastening piece 402, when dragging sealing fastening piece 402, the reinforcing sealing piece is because the lengthening and the attenuation, and the convenience will be reinforced the sealing piece extrusion and install in fastening hole 502, can guarantee the leakproofness of junction.

The distance between two parallel edges of the reinforcing sealing plate is not more than the height of the fastening through hole 502, so that after the sealing and fastening plate 402 is installed, the fastening through hole 502 is not extended out of the reinforcing sealing plate, the fastening through hole 502 can be prevented from being extended out of the excessively thick part of the sealing and fastening plate 402, and the fastening sleeve 503 is influenced to be normally screwed.

A plurality of sealing fastening rings are arranged on the outer wall of the first circular tube 401 at intervals, and sealing fastening pieces 402 in different sealing fastening rings are arranged in a staggered mode, so that the sealing performance between the first joint 4 and the second joint 5 is improved.

The inner wall of the second round pipe 501 is provided with a shaping ring 6 for supporting the second round pipe 501, so that deformation in the connection process of the second round pipe 501 is avoided, the second round pipe 501 is supported, and when the fastening sleeve 503 is prevented from being screwed, the sealing fastening piece 402 between the fastening sleeve 503 and the second round pipe 501 enables the second round pipe 501 to deform, and the sealing performance of the joint is affected. Preferably, the sizing ring 6 may be made of a metal material, and the sizing ring 6 may be made of a plastic material that is not easily deformed.

The utility model discloses a theory of operation and working process as follows:

when two double-walled bellows are connected, connect the second of a tubular product to connect 5 coaxial cup joints in the first of another tubular product and connect 4 outsides, the free end that will seal fastening piece 402 passes corresponding fastening through-hole 502, and outside pulling seal fastening piece 402, make the outer wall of first pipe 401 hug closely at second pipe 501 inner wall, rotate adapter sleeve 503 this moment, when seal fastening piece 402 is just pushed down to adapter sleeve 503, outside pulling seal fastening piece 402 once more, increase the outer wall of first pipe 401 and hug closely the pressure between second pipe 501 inner wall, in order to improve the leakproofness of first joint 4 and second joint 5 junction.

The tightening sleeve 503 is rotated continuously, after the tightening sleeve 503 completely presses the seal fastening plate 402 (the tightening sleeve 503 presses the seal fastening plate 402 for a distance exceeding a set distance), the seal fastening plate 402 is released, at this time, the tightening sleeve 503 is screwed continuously, and after all the seal fastening plates 402 are pressed between the tightening sleeve 503 and the second circular tube 501, the tightening of the tightening sleeve 503 is completed.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The pressure-resistant, crack-resistant and deformation-resistant polyethylene double-wall corrugated pipe is characterized by comprising an inner pipe wall (2) with a tubular structure and an outer pipe wall (1) sleeved outside the inner pipe wall (2), wherein the outer pipe wall (1) is of a corrugated structure;

the outer pipe wall (1) comprises a plurality of wave wall bulges which are arranged, a plurality of annular cavities with trapezoidal sections are formed between the wave wall bulges and the inner pipe wall (2), the short edges of the trapezoidal structures are far away from the inner pipe wall (2), and flexible foaming materials (3) are filled in the annular cavities and used for buffering external force.

2. The double-wall corrugated pipe made of polyethylene with the characteristics of pressure resistance, crack resistance and deformation resistance as claimed in claim 1, wherein the flexible foaming material (3) can be polyurethane foaming material.

3. The pressure, crack and deformation resistant polyethylene double-wall corrugated pipe according to claim 1, wherein a reinforcing rib (101) is arranged between two adjacent wave wall protrusions for improving the connection stability between the two wave wall protrusions.

4. The pressure, crack and deformation resistant polyethylene double-wall corrugated pipe according to claim 1, comprising a first joint (4) and a second joint (5) respectively arranged at two ends of the corrugated pipe;

the first connector (4) comprises a first circular tube (401) with a cylindrical structure and a sealing fastening ring arranged on the outer wall of the first circular tube (401), the sealing fastening ring comprises a plurality of sealing fastening pieces (402) arranged at intervals, and the sealing fastening pieces (402) are made of elastic compressible materials;

the second connector (5) comprises a second round pipe (501) and a fastening sleeve (503) sleeved with the outer wall of the second round pipe (501) in a threaded mode, a plurality of fastening through holes (502) are formed in the side wall of the second round pipe (501), and the fastening through holes (502) are arranged opposite to the sealing fastening pieces (402).

5. The pressure, crack and deformation resistant polyethylene double-wall corrugated pipe as claimed in claim 4, wherein the sealing fastening sheet (402) is connected with the first round pipe (401) through a reinforcing sealing sheet with a trapezoidal cross section, and the short side of the trapezoidal cross section is arranged far away from the outer wall of the first round pipe (401).

6. The pressure, crack and deformation resistant polyethylene double-wall corrugated pipe according to claim 5, wherein the width of the short side of the reinforcing sealing piece is not less than the width of the fastening through hole (502), and the distance between two parallel sides of the reinforcing sealing piece is not more than the height of the fastening through hole (502).

7. The double-wall corrugated pipe made of polyethylene with the characteristics of pressure resistance, crack resistance and deformation resistance as claimed in claim 4, wherein a plurality of sealing fastening rings are arranged on the outer wall of the first circular pipe (401) at intervals, and sealing fastening pieces (402) on different sealing fastening rings are alternately arranged.

8. The pressure, crack and deformation resistant polyethylene double-wall corrugated pipe as claimed in claim 4, wherein the inner wall of the second circular pipe (501) is provided with a shaping ring (6) for supporting the second circular pipe (501), so as to avoid deformation of the second circular pipe (501) during connection.

9. The double-wall corrugated pipe of polyethylene with compression resistance, cracking resistance and deformation resistance as claimed in claim 8, wherein the sizing ring (6) is made of metal material.

10. The pressure, crack and deformation resistant polyethylene double-wall corrugated pipe as claimed in claim 8, wherein the sizing ring (6) is made of a plastic material which is not easy to deform.