CN214838995U

CN214838995U - Spiral winding composite underground pipeline

Info

Publication number: CN214838995U
Application number: CN202120533028.7U
Authority: CN
Inventors: 沙月华; 管恩政; 陈俊琛; 王金山; 秦庆戊
Original assignee: 5Elem Hi Tech Corp Technology Co Ltd
Current assignee: 5Elem Hi Tech Corp Technology Co Ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-11-23
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to a spiral winding compound underground pipeline, including damaged pipeline, set up the composite conduit in damaged pipeline and pour the cement layer between composite conduit and damaged pipeline, composite conduit includes inlayer pipeline and enhancement layer, wherein: the inner-layer pipeline comprises a UPVC base pipe, a sealing structure and at least one group of clamping structures, the UPVC base pipe is spirally wound and extends along a first spiral line, the sealing structure is arranged between two side faces, adjacent along the first spiral line, in the UPVC base pipe so that the inner-layer pipeline forms a sealing space continuously extending along a first axis, and the clamping structures comprise a first matching portion and a second matching portion which are positioned on two adjacent sides, adjacent along the first spiral line, in the UPVC base pipe and are clamped with each other; the reinforcing layer comprises a plurality of steel belts, and the steel belts at least cover the clamping structure; the cement layer is poured between the outer surface of the reinforcing layer, the outer surface of the inner-layer pipeline exposed out of the reinforcing layer and the inner surface of the damaged pipeline; the zero excavation is suitable for repairing pipelines with different shapes, is corrosion-resistant and has higher ring stiffness.

Description

Spiral winding composite underground pipeline

Technical Field

The utility model relates to the technical field of pipelines, especially, relate to a spiral winding composite underground pipeline.

Background

The gravity drainage pipeline only depends on the inclined slope gravity flow drainage of the drainage pipe because the gravity drainage pipeline does not need external pressure application, has the advantages of one-time laying, long service life, small maintenance and overhaul amount, economy, environmental protection and the like, and is widely applied to underground pipe networks such as water supply and drainage systems, irrigation and water conservancy in farmland, mines, chemical industry drainage and the like.

At present, the gravity drainage pipeline mainly comprises a nodular cast iron pipe, a glass fiber reinforced plastic sand inclusion pipe, a reinforced concrete pipe, a PVC (Polyvinyl chloride) spiral winding pipe and other forms, and after the gravity drainage pipeline is used for a long time, the pipeline is damaged along with the aging of materials or external factors, so that a sewage leakage phenomenon is generated. The existing repairing mode is mainly replaced by an excavation mode, so that the environment is damaged, the traffic is influenced, the excavation repairing is influenced by the caliber type of the excavation repairing mode, and the repairing difficulty of the abnormal caliber is large. In addition, the repaired pipeline has extremely poor corrosion resistance in environments such as sewage, chemical drainage and the like, and is generally corroded seriously or even perforated after being used for more than ten years, so that the safety of the pipeline is affected, and the pipeline has low structural strength, is easy to cause underground water and soil loss and surface subsidence, and causes safety accidents.

Therefore, it is important to provide a spiral winding composite underground pipeline which has zero excavation, corrosion resistance, long service life, larger ring stiffness and higher safety and is suitable for different calibers.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to solve the above problems and provide a spirally wound composite underground pipeline, which is suitable for construction with water and in zero excavation of different calibers, can be manufactured on site, has strong corrosion resistance, long service life, large ring stiffness, strong self-pressure bearing capacity and high safety, and can prevent water and soil loss and surface subsidence.

The utility model provides a spiral winding composite underground pipeline, be in including damaged pipeline, setting composite conduit in the damaged pipeline and pour in composite conduit with cement layer between the damaged pipeline, composite conduit includes inlayer pipeline and enhancement layer, wherein:

the inner-layer pipeline comprises a UPVC base pipe, a sealing structure and at least one group of clamping structure, wherein the UPVC base pipe is spirally wound and extends along a first spiral line, the sealing structure is arranged between two side faces, adjacent along the first spiral line, of the UPVC base pipe so that the inner-layer pipeline forms a sealing space continuously extending along a first axis, and the clamping structure comprises a first matching part and a second matching part which are positioned in the UPVC base pipe and are clamped along two adjacent sides of the first spiral line;

the reinforcing layer comprises a plurality of steel belts, and the steel belts at least cover the clamping structure;

the cement layer is poured between the outer surface of the reinforcing layer, the outer surface of the inner-layer pipeline exposed out of the reinforcing layer and the inner surface of the damaged pipeline.

In the spirally wound composite underground pipeline, the UPVC base pipe extends along the spiral winding of the first spiral line, and is clamped and matched with the second matching part through the first matching part to form a clamping structure, so that the UPVC base pipe can be conveniently and quickly fixed, the structural strength of the inner layer pipeline is higher, the stability is better, the service life of the spirally wound composite underground pipeline is longer due to the corrosion resistance of the UPVC base pipe, and the sealing structure between the two adjacent side surfaces along the spiral of the first spiral line in the UPVC base pipe ensures that the inner layer pipeline forms a sealing space continuously extending along the first axis, so that liquid leakage is blocked, the contact of conveyed fluid, microorganisms and gas with other parts of the composite pipeline is isolated, and the service life of the spirally wound composite underground pipeline is fully prolonged; each steel belt in the reinforcing layer is arranged on the clamping structure, so that the structural strength and the stability of the connecting position of the first matching part and the second matching part can be improved, the ring stiffness of the spirally wound composite underground pipeline reaches SN12.5, and the structural strength and the stability are high; the inner-layer pipeline and the reinforcing layer which are connected together are placed into the damaged pipeline, then cement is poured between the composite pipeline and the damaged pipeline, the cement is filled between the outer surface of the reinforcing layer, the outer surface of the reinforcing layer is exposed out of the inner-layer pipeline and the inner surface of the damaged pipeline, the composite pipeline and the damaged pipeline are connected into a whole to form a new composite structure, the repair construction process of the damaged pipeline only needs to be carried out in the original damaged pipeline inspection well, compared with all the existing pipeline repair technologies, non-excavation can be really realized, the new composite structure is the pipeline after repair, the pipeline after repair can have stronger external pressure bearing capacity due to the existence of the cement layer, on one hand, the reinforcing layer and the inner-layer pipeline can be protected, further, the integral ring of the spirally wound composite underground pipeline has higher rigidity, and the caliber range can be enlarged, forming a spiral winding composite underground pipeline with an ultra-large caliber; on the other hand, the safety can be improved, and the existence of the cement layer can also prevent soil erosion and surface subsidence when the composite structure leaks. In addition, the UPVC base pipe can be spirally wound on a construction site, only preformed sectional materials are needed to be transported to the site, the transportation cost can be greatly reduced, the transportation cost can be conveniently transported, the transportation cost is saved, the construction is rapid, the occupied area of construction is small, and the UPVC base pipe can be used for repairing damaged pipelines with various caliber shapes and caliber sizes.

In one embodiment, the broken pipe extends continuously along the first axis, and a cross-sectional shape of the broken pipe in a direction perpendicular to the first axis is one of a circular shape, an egg shape, a square shape, a triangular shape, and the like.

In one embodiment, the damaged conduit has a damaged opening, and a portion of the cement layer is poured into the damaged opening.

In one of them embodiment, first cooperation portion includes at least one hasp, the hasp is followed the shape is expanded to first helix direction's cross-section is arrow point column structure, second cooperation portion includes at least one locked groove, the locked groove is followed the shape is expanded to first helix direction's cross-section is arrow point column structure, just the locked groove is kept away from one side of hasp is formed with the gusset.

In one embodiment, the sealing structure comprises a sealing element and a hot melt adhesive, a sealing groove is formed in one side, close to the end part of the lock catch, of the lock groove, the sealing element is filled in the sealing groove, the sealing element abuts against the sealing groove and the surface opposite to the lock catch, and the hot melt adhesive is arranged on the surface opposite to the lock groove and the UPVC base pipe.

In one embodiment, the UPVC base pipe is formed by spirally winding a strip-shaped UPVC profile, the first matching part and the second matching part are arranged on two sides of the strip-shaped UPVC profile along the width direction of the strip-shaped UPVC profile and extend out of the same surface of the strip-shaped UPVC profile along the direction perpendicular to the strip-shaped UPVC profile.

In one embodiment, the first and second mating portions each extend along the first helical line.

In one embodiment, the outer surface of the UPVC base pipe has at least one reinforcing rib disposed around the UPVC base pipe along the first spiral line.

In one embodiment, the cross section of the reinforcing rib along the first spiral line direction is unfolded to form a T-shaped structure, the cross section of the steel belt along the first spiral line direction is unfolded to form a W-shaped structure, the steel belt covers the clamping structure, and two ends of the steel belt abut against the two parts of the reinforcing rib close to the clamping structure respectively.

In one embodiment, the section of the reinforcing rib along the first spiral line direction is spread to form a straight structure, the section of the steel belt along the first spiral line direction is spread to form a zigzag structure, and the steel belt covers at least one clamping structure and at least one part of the reinforcing rib close to the clamping structure.

Drawings

Fig. 1 is a right side view of a spirally wound composite underground pipeline provided by the present invention;

fig. 2 is a schematic structural view of a spirally wound composite underground pipeline provided by the present invention;

fig. 3 is a right side view of another spiral wound composite underground conduit provided by the present invention;

fig. 4 is a schematic structural diagram of the spiral winding composite underground pipeline provided by the present invention.

Reference numerals:

01. spirally winding the composite underground pipeline;

10. a composite conduit;

100. an inner layer pipe; 110. a UPVC base pipe; 120. a clamping structure; 121. a first mating portion; 122. a second mating portion; 123. locking; 1231. a first buckle body; 1232. a second buckle body; 124. locking the groove; 1241. a first tank body; 1242. a first tank body; 125. a rib plate; 126. a sealing groove; 127. reinforcing ribs; 130. a sealing structure; 131. a seal member; 132. hot melt adhesive;

200. a reinforcing layer; 210. a steel belt;

20. breaking the pipeline;

30. and (5) a cement layer.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical solution provided by the embodiments of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a compound underground piping of spiral winding 01 for this compound underground piping of spiral winding 01 uses in underground pipe networks such as water supply and drainage system, irrigation, mine and chemical industry drainage, this compound underground piping of spiral winding 01 includes compound pipeline 10, these triplets in damaged pipeline 20 and cement layer 30, compound pipeline 10 sets up the inside at damaged pipeline 20, and through pour formation cement layer 30 between compound pipeline 10 and damaged pipeline 20, in order to connect compound pipeline 10, cement layer 30 and damaged pipeline 20 and form compound underground piping of spiral winding 01, realize the restoration to damaged pipeline 20. It can also be used to upgrade non-sewer pipes to sewer pipes, such as the original compound pipe 10-bit storm water pipe network.

The composite pipe 10 comprises a two-part structure of an inner pipe 100 and a reinforcing layer 200, wherein:

as shown in fig. 4, the inner-layer pipe 100 includes an UPVC (Unplasticized Polyvinyl Chloride) base pipe 110, a sealing structure 130, and at least one set of clamping structure 120, the UPVC base pipe 110 is made of UPVC material, the UPVC material is not easily reacted with acid, alkali, and salt, and has strong corrosion resistance and aging resistance, so that the UPVC base pipe 110 has better corrosion resistance, the service life of the inner-layer pipe 100 is prolonged, and the service life of the UPVC base pipe is as long as 50 years. And various UPVC base tubes with the diameter range of DN300-6000mm are formed by the winding machine component, so that the operation is simple, convenient and quick. In addition, the base pipe of the inner layer pipeline is not limited to the UPVC base pipe 110, and may be made of PE (polyethylene) or other materials that can meet the requirements.

UPVC base tube 110 extends along first helix spiral winding, in order to form spiral winding column structure, the both sides face that UPVC base tube 110 extends along first helix direction is adjacent setting except the tip of UPVC base tube 110, make UPVC base tube 110 be a tubular structure, UPVC base tube 110 is provided with seal structure 130 along being provided with between the both sides face that first helix direction extends, this seal structure 130 cooperatees with UPVC base tube 110 so that this inlayer pipeline is the sealed space of extending in succession along the primary axis, when specifically setting up, this primary axis can be for the straight line, pitch arc or the combination form of straight line and pitch arc.

As shown in fig. 4, the clamping structure 120 includes a first matching portion 121 and a second matching portion 122, the first matching portion 121 and the second matching portion 122 are located at two adjacent sides of the UPVC base pipe 110 along a first spiral line, and the first matching portion 121 and the second matching portion 122 are in clamping fit with each other to form the clamping structure 120, so that the spirally wound UPVC base pipe 110 has good structural stability.

As shown in fig. 4, the reinforcing layer 200 includes a plurality of steel strips 210, each steel strip 210 covering at least the clamping structure 120; in a specific arrangement, the steel strip 210 may be made of a galvanized steel sheet, and the steel strip 210 may also be made of a stainless steel sheet, for example, a 304 stainless steel sheet. The number of the steel strips 210 corresponds to the number of the clamping structures 120, for example, the steel strips 210 and the clamping structures 120 are arranged in a one-to-one correspondence manner, so that the structural strength of each clamping structure 120 is enhanced, and for example, each steel strip 210 corresponds to a plurality of clamping structures 120, so as to facilitate the arrangement of the steel strips 210.

As shown in fig. 2, the damaged pipe 20 extends continuously along a first axis, the damaged pipe 20 may be one of a ductile iron pipe, a glass fiber reinforced plastic sand inclusion pipe, a reinforced concrete pipe, a PVC spiral wound pipe, etc., after the composite pipe 10 is placed in the damaged pipe 20, a cement layer 30 is poured between an outer surface of the reinforcing layer 200, an outer surface of the inner pipe 100 exposed out of the reinforcing layer 200, and an inner surface of the damaged pipe 20, for protecting the reinforcing layer 200 and the inner pipe 100, and preventing liquid leakage when the inner pipe 100 leaks; in particular, the cement layer 30 may be formed of one or more of rapid hardening portland cement, road portland cement, aluminate cement, and sulfoaluminate cement, and the material of the cement layer 30 is not limited to the above-described form, and may be formed in other forms that can satisfy the requirements.

In the spirally wound composite underground pipeline 01, the UPVC base pipe 110 is spirally wound and extended along a first spiral line, the first matching part 121 and the second matching part 122 are arranged on two sides of the UPVC base pipe 110, the first matching part 121 and the second matching part 122 are matched in a clamping manner to form the clamping structure 120, the UPVC base pipe 110 is conveniently and quickly fixed through the clamping structure 120 on the UPVC base pipe 110, so that the inner pipeline 100 has higher structural strength and better stability, the service life of the spirally wound composite underground pipeline 01 can be longer due to the corrosion resistance of the UPVC base pipe 110, and the sealing structure 130 between two adjacent side faces of the UPVC base pipe 110 along the first spiral line enables the inner pipeline 100 to form a sealing space continuously extending along the first axis, and prevents liquid leakage to isolate the contact of the conveyed fluid, microorganisms and gas with other parts of the composite pipeline, the service life of the spirally wound composite underground pipeline 01 is fully prolonged; the reinforcing layer 200 is arranged on the outer side of the inner-layer pipeline 100, each steel belt 210 in the reinforcing layer 200 is arranged on the clamping structure 120, the structural strength and the stability of the connecting position of the first matching part 121 and the second matching part 122 can be improved, the ring rigidity of the spirally-wound composite underground pipeline 01 can reach SN12.5, and the structural strength and the stability of the spirally-wound composite underground pipeline 01 can be further enhanced; the inner-layer pipeline 100 and the reinforcing layer 200 which are connected together are placed into the damaged pipeline 20, then cement is poured between the composite pipeline 10 and the damaged pipeline 20, the cement is filled between the outer surface of the reinforcing layer 200, the outer surface of the reinforcing layer 200 exposed out of the inner-layer pipeline 100 and the inner surface of the damaged pipeline 20, the composite pipeline 10 and the damaged pipeline 20 are connected into a whole to form a new composite structure, the new composite structure is a repaired pipeline, the repair construction process of the damaged pipeline 20 only needs to be carried out in an original damaged pipeline 20 inspection well, compared with all existing pipeline repair technologies, non-excavation can be really realized, the repaired pipeline has stronger external pressure bearing capacity due to the existence of the cement layer 30, on one hand, the reinforcing layer 200 and the inner-layer pipeline 100 can be protected, and further, the rigidity of the whole ring of the spirally wound composite underground pipeline 01 is higher, the caliber range can be enlarged, and the spirally wound composite underground pipeline 01 with the ultra-large caliber is formed; on the other hand, the presence of the cement layer 30 can improve safety, and also prevent soil erosion and surface subsidence in case of leakage of the composite structure 10, and deformation, breakage and displacement of the pipe due to subsidence of the foundation. On the basis of comprehensively ensuring the normal operation of the pipeline, the stability of the soil structure along the pipeline and the safety of earth surface roads, buildings and the like are ensured. In addition, the UPVC base pipe 110 can be spirally wound on a construction site, and only the preformed section bar is needed to be transported to the site, so that the transportation cost can be greatly reduced, the transportation cost can be conveniently transported, the transportation cost can be saved, the construction is rapid, the occupied area for construction is small, and the damaged pipeline 20 suitable for various caliber shapes and caliber sizes can be repaired.

As shown in fig. 1 and 3, in a preferred embodiment, the damaged pipe 20 extends continuously along the first axis, and the cross-sectional shape of the damaged pipe 20 in a direction perpendicular to the first axis may be one of a circular shape, an egg shape, a square shape, a triangular shape, and the like. Of course, the sectional shape of damaged pipe 20 in the direction perpendicular to the first axis is not limited to this, and may be other shapes.

In the spirally wound composite underground pipe 01, since the repair construction of the damaged pipe 20 is performed only in the inspection well of the original damaged pipe 20, the inner pipe 100 and the reinforcing layer 200 connected together are put into the damaged pipe 20, cement is poured between the composite pipe 10 and the damaged pipe 20, the cement is filled between the outer surface of the reinforcing layer 200, the outer surface of the inner pipe 100 exposed out of the reinforcing layer 200, and the inner surface of the damaged pipe 20, so as to connect the composite pipe 10 and the damaged pipe 20 into a new composite structure, for the damaged pipes 20 of different caliber sizes and shapes, only the caliber and the shape of the inner pipe 100 need to be adjusted correspondingly, so that the repair of the damaged pipe 20 having a circular, egg-shaped, square, triangular, or other cross-section can be realized by forming the composite pipe 10 corresponding to the caliber size and the shape of the damaged pipe 20, the application range of the spiral winding composite underground pipeline 01 is widened, the spiral winding composite underground pipeline is generally only suitable for circular pipelines compared with the existing repairing technology, the spiral winding composite underground pipeline can be suitable for repairing damaged pipelines 20 with various calibers and shapes, and the repair of the damaged pipelines 20 can be carried out with water, so that the construction condition is less limited.

To further enhance the structural strength of the spirally wound composite underground conduit 01, in a preferred embodiment, the damaged conduit 20 has a damaged opening into which a layer of cement 30 is poured.

In the spirally wound composite underground piping 01, the broken opening of the broken piping 20 is filled with cement, whereby the structural strength of the spirally wound composite underground piping 01 can be further improved, and the occurrence of leakage can be further prevented. In a specific installation, the damaged opening of the damaged pipe 20 may be opened on the inner surface of the damaged pipe 20 and may not completely penetrate the thickness of the damaged pipe 20, and at this time, the cement may be poured from both ends of the damaged pipe 20; the damaged opening of damaged conduit 20 also extends completely through the thickness of damaged conduit 20, and at this time, the placement of cement can be injected through the damaged opening of damaged conduit 20.

The specific form of the clamping structure 120 is various, as shown in fig. 4, and in a preferred embodiment, the first mating portion 121 includes at least one latch 123, and the second mating portion 122 includes at least one latch slot 124; in a specific arrangement, the first mating portion 121 may have only one latch 123, and correspondingly, the second mating portion 122 also has only one latch slot 124, so as to facilitate the snap-fit; the first mating portion 121 may have a plurality of latches 123, the plurality of latches 123 are integrally connected, and correspondingly, the second mating portion 122 has a plurality of locking slots 124, and the plurality of locking slots 124 are integrally connected, for example, the first mating portion 121 has two latches 123, and the second mating portion 122 has two locking slots 124, so as to improve the connection strength of the clamping structure 120 by providing the plurality of latches 123 and the plurality of locking slots 124.

In the spirally wound composite underground pipeline 01, the first matching part 121 is only the lock catch 123, and the second matching part 122 is only the lock groove 124, so that only one structural form of the clamping structure 120 is arranged on one side of the UPVC base pipe 110 along the first spiral line, and only the other structural form of the clamping structure 120 is arranged on the other side of the UPVC base pipe 110, on one hand, the arrangement of the first matching part 121 and the second matching part 122 on the UPVC base pipe 110 can be facilitated, and on the other hand, the clamping matching of the first matching part 121 and the second matching part 122 can also be facilitated.

The specific form of the clamping structure 120 is various, as shown in fig. 4, in a preferred embodiment, the first matching portion 121 and the second matching portion 122 respectively include at least one latch 123 and at least one latch slot 124, and the latch 123 of the first matching portion 121 and the latch slot 124 of the second matching portion 122 are correspondingly arranged; when specifically arranged, the lock catch 123 of the first matching part 121 corresponds to the lock groove 124 of the second matching part 122, the lock groove 124 of the first matching part 121 corresponds to the lock catch 123 of the second matching part 122, the first matching part 121 may only have one lock catch 123 and one lock groove 124, the one lock catch 123 and the one lock groove 124 are connected into a whole, correspondingly, the second matching part 122 also only has one lock catch 123 and one lock groove 124, the one lock catch 123 and the one lock groove 124 are connected into a whole, and the first matching part 121 and the second matching part 122 respectively include one lock catch 123 and one lock groove 124 by limiting, so as to facilitate the snap fit; the first mating part 121 may have a plurality of latches 123 and a plurality of locking grooves 124, the plurality of latches 123 and the plurality of locking grooves 124 are integrally connected, correspondingly, the second mating part 122 has a plurality of latches 123 and a plurality of locking grooves 124, the plurality of latches 123 and the plurality of locking grooves 124 are integrally connected, for example, the first mating part 121 has two latches 123 and two locking grooves 124, and the second mating part 122 has two latches 123 and two locking grooves 124; the plurality of latches 123 and the plurality of latch grooves 124 are provided to improve the connection strength of the snap structure 120.

In the spirally wound composite underground pipeline 01, the first matching part 121 and the second matching part 122 are limited to respectively comprise at least one lock catch 123 and at least one lock groove 124, so that two structural forms in the clamping structure 120 are respectively arranged on the two sides of the UPVC base pipe 110 along the first spiral line, the clamping structure 120 form on each side of the UPVC base pipe 110 along the first spiral line is complex, the connection strength can be high, and the stability of the UPVC base pipe 110 is improved. In a specific arrangement, the clamping structure 120 may be the above-mentioned lock catch 123 and lock groove 124, or may be other structural forms that can meet the requirements, such as a plug and a slot, and a plurality of strip-shaped plugs and strip-shaped slots are arranged on the UPVC base pipe 110 along two sides of the first spiral line.

The structural forms of the lock catch 123 and the lock groove 124 are various, as shown in fig. 4, specifically, the cross-sectional development shape of the lock catch 123 along the first helical line direction is an arrow-shaped structure, the cross-sectional development shape of the lock groove 124 along the first helical line direction is an arrow-groove-shaped structure, and a rib 125 is formed on one side of the lock groove 124 away from the lock catch 123. In a specific arrangement, the structural forms of the lock catch 123 and the lock groove 124 are not limited to the above structural forms, and may be other structural forms that can meet the requirements.

In the spirally wound composite underground pipeline 01, the expanded shape of the cross section of the lock catch 123 along the first spiral line direction is an arrow-shaped structure, and the expanded shape of the cross section of the lock groove 124 along the first spiral line direction is an arrow-groove-shaped structure, so that the arrow-groove-shaped structure layer can be directly buckled on the arrow-shaped structure layer from one side along the extending direction of the UPVC base pipe 110, or the arrow-shaped structure layer can be directly inserted into the arrow-groove-shaped structure layer from one side along the extending direction of the UPVC base pipe 110, so that the lock catch 123 and the lock groove 124 can be more conveniently clamped and matched; the rib 125 is formed on the side of the locking groove 124 away from the locking catch 123, thereby improving the structural strength of the locking groove 124. When the fastener 123 is specifically arranged, the fastener comprises a strip-shaped first fastener 1231 and a triangular-column-shaped second fastener 1232, the first fastener 1231 extends outwards along the radial direction of the UPVC base pipe 110, the second fastener 1232 is connected with the first fastener 1231, the tip of the second fastener 1232 is far away from the first fastener 1231, and the cross-sectional expansion shapes of the first fastener 1231 and the second fastener 1232 along the first spiral line direction are arrow-shaped structures; the first buckle 1231 and the second buckle 1232 may be integrally formed, and the connection manner of the first buckle 1231 and the second buckle 1232 is not limited thereto, and may be other manners capable of meeting the requirement. Correspondingly, the locking groove 124 comprises a strip-shaped first groove body 1241 and a triangular groove-shaped second groove body 1242, the first groove body 1241 extends outwards along the radial direction of the UPVC base pipe 110, the second groove body 1242 is communicated with the first groove body 1241, the tip of the second groove body 1242 is far away from the first groove body 1241, and the cross-sectional development shapes of the first groove body 1241 and the second groove body 1242 along the first spiral line direction are arrow groove-shaped structures; the rib plate 125 is formed on one side of the tip end of the second slot body 1242, which is far away from the first slot body 1241, the rib plate 125 may be strip-shaped or tapered, and the first slot body 1241, the second slot body 1242 and the rib plate 125 may be formed at one time, and of course, the forming manner of the first slot body 1241, the second slot body 1242 and the rib plate 125 is not limited thereto, and other manners capable of meeting the requirements may also be used.

In order to improve the sealing performance of the inner pipe 100, as shown in fig. 4, more specifically, the sealing structure 130 includes a sealing member 131, a sealing groove 126 is formed at one side of the locking groove 124 near the end of the lock catch 123, the sealing groove 126 is filled with the sealing member 131, and the sealing member 131 abuts against the opposite surface of the sealing groove 126 and the lock catch 123. In a specific arrangement, the sealing element 131 may be a sealing strip, and the sealing strip may be glued in the sealing groove 126, and of course, the structure and arrangement of the sealing element 131 are not limited thereto, and may also be in other forms that can meet the requirement. The seal structure 130 also includes a hot melt adhesive 132, the hot melt adhesive 132 being disposed on the opposing surfaces of the latch groove 124 and the UPVC base pipe 110 to seal the latch groove 124 and the UPVC base pipe 110. When specifically setting up, hot melt adhesive 132 can set up on the UPVC base tube 110 between two hasp 123, and hot melt adhesive 132 can also set up respectively on the UPVC base tube 110 between two hasp 123 and keep away from the hasp 123 of UPVC base tube side and keep away from one side of UPVC base tube side, and in order to avoid overflowing after the hot melt adhesive pressurized, hasp 123 can have the recess or the zigzag structure of keeping away from UPVC base tube 110 to improve the degree of adhesion. The sealing structure 130 is not limited to the hot melt adhesive 132, but may be other adhesives having an adhesive sealing effect.

In the spirally wound composite underground pipe 01, the sealing groove 126 is formed at one side of the locking groove 124 close to the end of the locking buckle 123, the sealing member 131 is filled in the sealing groove 126, and the sealing member 131 is limited to abut against the opposite surface of the sealing groove 126 and the locking buckle 123 when the locking groove 124 and the locking buckle 123 are clamped, so that the spirally wound inner pipe 100 is sealed, and the sealing performance of the inner pipe 100 is improved. In a specific arrangement, the sealing element 131 is not limited to be disposed in the sealing groove 126, and may be formed with a groove on one of the two side surfaces of the UPVC base pipe 110 along the first spiral line and a sealing ring, or formed with a groove on both of the two side surfaces of the UPVC base pipe 110 along the first spiral line and a sealing ring, or formed with a cemented gasket on one of the two side surfaces of the UPVC base pipe 110 along the first spiral line, or formed with a cemented gasket on both of the two side surfaces of the UPVC base pipe 110 along the first spiral line, and directly sealed when the UPVC base pipe 110 forms a spirally wound shape after the sealing element 131 is disposed.

The structure of the inner pipe 100 has various structures, and in a preferred embodiment, the UPVC base pipe 110 is formed by spirally winding a strip-shaped UPVC profile, the first fitting part 121 and the second fitting part 122 are provided on the strip-shaped UPVC profile, and the first fitting part 121 and the second fitting part 122 are respectively located along both sides of the strip-shaped UPVC profile in the width direction thereof and near the edge of the strip-shaped UPVC profile; the first and

second mating parts

121 and 122 are located on the same surface of the strip-shaped UPVC profile, and the first and

second mating parts

121 and 122 extend out of this surface in a direction perpendicular to the strip-shaped UPVC profile.

In the spirally wound composite underground pipeline 01, the UPVC base pipe 110 is formed by spirally winding a strip-shaped UPVC profile by limiting the UPVC base pipe 110, so that the spirally wound UPVC base pipe 110 can be formed more conveniently and quickly; the first matching part 121 and the second matching part 122 are arranged on two sides of the strip-shaped UPVC profile along the width direction of the strip-shaped UPVC profile, and the first matching part 121 and the second matching part 122 extend out of the same surface of the strip-shaped UPVC profile along the direction perpendicular to the strip-shaped UPVC profile, so that when the UPVC base pipe 110 extends along the first spiral line, the first matching part 121 and the second matching part 122 can be close to each other and are in clamping fit. When specifically arranged, the first matching part 121 and the second matching part 122 are integrally formed with the strip-shaped UPVC profile, for example, the first matching part 121 and the second matching part 122 are integrally formed with the strip-shaped UPVC profile through an injection molding process, and the first matching part 121, the second matching part 122 and the strip-shaped UPVC profile can also be formed by stamping a single piece of UPVC profile; of course, the connection manner of the first matching portion 121 and the second matching portion 122 and the strip-shaped UPVC profile is not limited to this, and other manners may be adopted as long as the requirements can be satisfied. For the convenience of clamping cooperation, the edge of banded UPVC section bar is provided with the cooperation structure, and this cooperation structure includes the first wedge-shaped face of banded UPVC section bar one side edge, and this cooperation structure still includes the second wedge-shaped face of banded UPVC section bar opposite side edge, and first wedge-shaped face and second wedge-shaped face cooperate for the joint cooperation is comparatively convenient and fast.

The structure of the clamping structure 120 has a plurality of forms, and specifically, the number of the clamping structures 120 is one group, and the first matching portion 121 and the second matching portion 122 respectively extend along the first spiral line. When the UPVC base pipe 110 is formed by spirally winding the strip-shaped UPVC section bar, the first matching part 121 and the second matching part 122 extend along a first spiral line respectively. In the above spiral winding composite underground pipe 01, the number of the clamping structures 120 is limited to be a group, and the first matching parts 121 and the second matching parts 122 in the clamping structures 120 are respectively long strip-shaped structures extending along a first spiral line, so that the fixation of the whole UPVC base pipe 110 can be realized conveniently and rapidly through one-time clamping operation.

The clamping structures 120 have various structural forms, specifically, the number of the clamping structures 120 is multiple, the multiple groups of clamping structures 120 are arranged on the UPVC base pipe 110 along a first spiral line, and each clamping structure 120 is located on any two adjacent parts of the UPVC base pipe 110 with opposite extending directions. When the UPVC base pipe is specifically arranged, a plurality of first matching parts 121 and a plurality of second matching parts 122 are arranged on the strip-shaped UPVC section bar, the first matching parts 121 and the second matching parts 122 extend along the length direction of the strip-shaped UPVC section bar, after the strip-shaped UPVC section bar is spirally wound to form the UPVC base pipe 110, the first matching parts 121 and the second matching parts 122 are respectively arranged along a first spiral line, the first matching parts 121 and the second matching parts 122 are located on two sides of the UPVC base pipe 110 and are respectively located on two adjacent parts of the UPVC base pipe 110, the first matching parts 121 and the second matching parts 122 are in clamping fit with each other, so that the two adjacent parts of the UPVC base pipe 110, which are opposite in extending direction, are relatively fixed.

In the spiral winding composite underground pipeline 01, the first matching part 121 and the second matching part 122 are arranged on any two adjacent UPVC base pipes 110 in opposite extending directions, the first matching part 121 and the second matching part 122 are matched with each other in a clamping manner to form a clamping structure 120, and a plurality of groups of clamping structures 120 are arranged on the UPVC base pipes 110 along a first spiral line to fix the UPVC base pipes 110, so that the inner layer pipeline 100 is high in structural strength and good in stability. In a specific arrangement, the number of clamping structures 120 is multiple, for example, 50, 100, 150, 200, etc., and the specific number of clamping structures 120 may be determined according to the actual condition of the UPVC base pipe 110, for example, when the UPVC base pipe 110 is longer, the number of clamping structures 120 may be increased appropriately. The multiple sets of clamping structures 120 are arranged on the UPVC base pipe 110, and the multiple sets of clamping structures 120 are arranged along a first spiral line, the clamping structures 120 can be symmetrically arranged in the circumferential direction of the UPVC base pipe 110, multiple clamping structures 120 can be uniformly arranged in the circumferential direction of the UPVC base pipe 110, each clamping structure 120 is located on any two adjacent UPVC base pipes 110 with opposite extension directions, when the clamping structures are arranged, the multiple sets of clamping structures 120 can be uniformly arranged along the first spiral line, the clamping structures 120 can be properly increased in some areas to strengthen the connection strength, for example, the clamping structures 120 can be increased in the bending area. The multiple sets of clamping structures 120 are uniformly arranged on the UPVC base pipe 110 along the first spiral line direction, and a set or multiple sets of clamping structures 120 can be arranged on any two adjacent portions of the UPVC base pipe 110, except for the end portion of the UPVC base pipe 110, of the two side surfaces of the UPVC base pipe 110 extending along the first spiral line direction, for example, two sets of clamping structures 120 can be arranged on any two adjacent portions of the UPVC base pipe 110, and four sets of clamping structures 120 can be arranged on any two adjacent portions of the UPVC base pipe 110. Of course, the arrangement of the plurality of clamping structures 120 on the UPVC base pipe 110 is not limited thereto, and may be in other structural forms that can meet the requirement.

In order to improve the structural strength of the inner-layer pipeline 100, as shown in fig. 4, in a preferred embodiment, the outer surface of the UPVC base pipe 110 is provided with at least one reinforcing rib 127, the reinforcing rib 127 is arranged around the UPVC base pipe 110 along a first spiral line, when the UPVC base pipe is specifically arranged, the number of the reinforcing ribs 127 may be one, two, three or more, the specific number of the reinforcing ribs 127 may be determined according to the actual situation of the spirally wound composite underground pipeline 01, the strip-shaped UPVC profile is provided with the reinforcing rib 127 extending along the length direction thereof, the length of the reinforcing rib 127 is equal to or slightly less than the length of the strip-shaped UPVC profile, and after the strip-shaped UPVC profile is spirally wound to form the UPVC base pipe 110, the reinforcing rib 127 extends along the first spiral line.

In the spirally wound composite underground pipeline 01, the reinforcing rib 127 is arranged on the outer surface of the UPVC base pipe 110, and the reinforcing rib 127 is limited to be arranged around the UPVC base pipe 110 along a first spiral line, so that the supporting strength of the UPVC base pipe 110 is improved, the structural strength of the inner pipeline 100 is higher, and the structural stability of the whole spirally wound composite underground pipeline 01 is improved. In a specific arrangement, the stiffener 127 and the UPVC base pipe 110 may be integrally formed, for example, the stiffener 127 and the strip-shaped UPVC profile may be integrally formed by an injection molding process, and the stiffener 127 and the strip-shaped UPVC profile may also be formed by stamping a single UPVC profile. Of course, the connection mode of the reinforcing rib 127 and the UPVC base pipe 110 is not limited to this, and other modes can be adopted as required.

The steel strip 210 has various structural forms, as shown in fig. 4, specifically, the section development shape of the reinforcing ribs 127 along the first spiral direction is a T-shaped structure, the section development shape of the steel strip 210 along the first spiral direction is a W-shaped structure, the steel strip 210 covers the clamping structure 120, and both ends of the steel strip 210 abut against two portions of the reinforcing ribs 127 close to the clamping structure 120, respectively. When specifically setting up, set up the strengthening rib 127 that extends along its length direction on the banding UPVC section bar, this strengthening rib 127 is T style of calligraphy structure at the length direction's of following banding UPVC section bar cross sectional shape, behind banding UPVC section bar spiral winding formation UPVC base tube 110, strengthening rib 127 extends along first helix, first cooperation portion 121 and second cooperation portion 122 looks joint cooperation, then establish steel band 210 cover on joint structure 120, when joint structure 120 is the stripe structure who extends along first helix, steel band 210 can be a helical structure who extends along first helix, steel band 210 can also be a plurality of heliciform monomers that extend by first helix and constitute. In the spiral winding composite underground pipeline 01, the reinforcing ribs 127 and the steel belt 210 are limited to be unfolded along the section of the first spiral line direction, the steel belt 210 is limited to be covered on the clamping structure 120, two ends of the steel belt 210 abut against the two reinforcing ribs 127 close to the clamping structure 120 respectively, the clamping structure 120 is protected, the structural strength of the inner-layer pipeline 100 is high, and the structural stability of the whole spiral winding composite underground pipeline 01 is improved.

The structural form of the steel belt 210 has various forms, and specifically, the section of the reinforcing rib 127 along the first spiral direction is unfolded to be in a straight structure, the section of the steel belt 210 along the radial direction of the UPVC base pipe 110 is in a zigzag structure, and the steel belt 210 covers at least one clamping structure 120 and at least one part of the reinforcing rib 127 adjacent to the clamping structure 120. When specifically setting up, set up the strengthening rib 127 that extends along its length direction on the banding UPVC section bar, this strengthening rib 127 is the style of calligraphy structure at the length direction's of following banding UPVC section bar cross sectional shape, behind banding UPVC section bar spiral winding formation UPVC parent tube 110, strengthening rib 127 extends along first helix, first cooperation portion 121 and second cooperation portion 122 looks joint cooperation, then establish steel band 210 cover on joint structure 120, when joint structure 120 is the stripe structure who extends along first helix, steel band 210 can be a helical structure who extends along first helix, steel band 210 can also be a plurality of heliciform monomers that extend by first helix and constitute. In the spirally wound composite underground pipeline 01, the reinforcing ribs 127 and the steel strip 210 are limited to be unfolded along the section of the first spiral direction, and the steel strip 210 is limited to cover at least one clamping structure 120 and at least one part of the reinforcing ribs 127 close to the clamping structure 120, so that the plurality of clamping structures 120 are protected at the same time, the structural strength of the inner-layer pipeline 100 is higher, and the structural stability of the whole spirally wound composite underground pipeline 01 is improved.

The inner pipe 100 may have various shapes, and in a preferred embodiment, the inner pipe 100 may have a cylindrical structure, so that the inner diameter is large, the water discharge amount is large, the water discharge capacity of the spirally wound composite underground pipe 01 is improved, the inner wall of the inner pipe 100 is smooth, the resistance is small, and the flow rate is not affected even in the case of reducing the diameter. In particular, the shape of the inner pipe 100 is not limited thereto, and may be other shapes. In one embodiment, the UPVC base pipe 110 of the inner pipe 100 is set to have a thickness of 2.7mm, at this time, the UPVC base material has a thickness of 2.7mm, the UPVC base pipe 110 is set to have two reinforcing ribs 127, the clamping structure 120 is set to have a 304 stainless steel band 210 having a thickness of 2.4mm, the winding machine and the UPVC base material are placed into the inspection well of the damaged pipe 20, at this time, the repair equipment on the bottom surface only includes a drum and a repair tool of the UPVC base material, the occupied space is small, the winding machine compresses the edge of the UPVC base material and locks the UPVC base material together through the clamping structure 120 at each winding time in the inspection well, and simultaneously sets the sealing structure 130 and the reinforcing layer 200 to ensure that water does not leak, after one roll of the UPVC base material is completely wound, the end of the other roll of the UPVC base material is connected to the existing UPVC base pipe through a welding device until the UPVC base pipe 110 is formed over the length of the whole damaged pipe 20, and then cement is poured to form the cement layer 30, forming a complete spirally wound composite underground pipe 01.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a spiral winding compound underground piping, its characterized in that, including damaged pipeline, setting composite conduit in the damaged pipeline and pour in composite conduit with the cement layer between the damaged pipeline, composite conduit includes inlayer pipeline and enhancement layer, wherein:

the inner-layer pipeline comprises a UPVC base pipe, a sealing structure and at least one group of clamping structure, wherein the UPVC base pipe spirally winds and extends along a first spiral line, the sealing structure is arranged between two side faces, adjacent along the first spiral line, of the UPVC base pipe so that the inner-layer pipeline forms a sealing space continuously extending along a first axis, and the clamping structure comprises a first matching part and a second matching part which are positioned in the UPVC base pipe and are clamped along two adjacent sides of the first spiral line;

2. The helically wound composite underground conduit of claim 1, wherein the damaged conduit extends continuously along the first axis, and a cross-sectional shape of the damaged conduit in a direction perpendicular to the first axis is one of a circular shape, an egg shape, a square shape, a triangular shape, and the like.

3. The helically wound composite underground conduit of claim 1, wherein the damaged conduit has a damaged opening into which a portion of the cement layer is poured.

4. The spirally wound composite underground pipeline according to claim 1, wherein the first fitting portion comprises at least one lock catch, the lock catch is of an arrow-shaped structure along the cross section in the first spiral line direction, the second fitting portion comprises at least one lock groove, the lock groove is of an arrow groove-shaped structure along the cross section in the first spiral line direction, and a rib plate is formed on one side, away from the lock catch, of the lock groove.

5. The spiral wound composite underground pipe of claim 4, wherein the sealing structure comprises a sealing element and a hot melt adhesive, wherein a sealing groove is formed in one side of the locking groove close to the end of the lock catch, the sealing groove is filled with the sealing element, the sealing element abuts against the sealing groove and the surface of the lock catch opposite to the locking groove, and the hot melt adhesive is arranged on the surface of the locking groove opposite to the UPVC base pipe.

6. The spirally wound composite underground pipeline of claim 1, wherein the UPVC base pipe is formed by spirally winding a strip-shaped UPVC profile, and the first mating portion and the second mating portion are disposed at both sides of the strip-shaped UPVC profile in a width direction of the strip-shaped UPVC profile and extend out of the same surface of the strip-shaped UPVC profile in a direction perpendicular to the strip-shaped UPVC profile.

7. The helically wound composite underground conduit of claim 6, wherein the first mating portion and the second mating portion each extend along the first helical line.

8. The helically wound composite subterranean conduit of claim 1, wherein an outer surface of the UPVC base pipe has at least one reinforcing rib disposed around the UPVC base pipe along the first helical line.

9. The spirally wound composite underground pipeline according to claim 8, wherein the reinforcing ribs are of a T-shaped structure along the section spreading shape in the first spiral line direction, the steel belt is of a W-shaped structure along the section spreading shape in the first spiral line direction, the steel belt covers the clamping structure, and two ends of the steel belt abut against the two portions of the reinforcing ribs close to the clamping structure respectively.

10. The helically wound composite underground pipe of claim 8, wherein the reinforcing ribs are in a generally straight configuration along a cross-sectional extent of the first helical line, the steel strip is in a generally parallel configuration along a cross-sectional extent of the first helical line, and the steel strip covers at least one of the clamping structures and at least a portion of the reinforcing ribs adjacent the clamping structures.