Lining steel-plastic plate strip for repairing municipal drainage pipeline

Abstract

The utility model provides a lining steel-plastic plate strip for repairing municipal drainage pipelines, which comprises a strip-shaped plate strip main body, a strip-shaped clamping strip is arranged along one side edge of the plate strip main body, a clamping groove matched with the clamping strip is arranged on the other side of the plate strip main body, and a plurality of reinforcing ribs are arranged on the upper surface of the plate strip main body along the length direction. The top of each reinforcing rib is provided with an abutting portion with a T-shaped cross section, a steel lining with a W-shaped cross section is installed between the two reinforcing ribs close to the middle of the plate strip body in the length direction, filling grooves are formed between part of the adjacent reinforcing ribs, a plurality of filling openings are formed in the plate strip body along the positions of the filling grooves, and sealing strips are arranged on the inner sides of the clamping strips in the length direction. A connecting part and a supporting plate are arranged on the outer side of the clamping groove. Compared with the prior art, the plate strip has the advantages that the overall structural strength is higher, the shape of the wound plate strip is easy to fix, the plate strip is attached to the pipe wall of the drainage pipeline more tightly and firmly, the sealing performance of the connecting position of the plate strip is better, and the plate strip is not prone to loosening.

Description

TECHNICAL FIELD

[0001] The utility model belongs to municipal pipeline maintenance equipment technical field, concretely relates to a municipal drainage pipeline repairs with lining steel plastic board belt. BACKGROUND

[0002] The municipal drainage pipeline bears the function of city sewage discharge and flood prevention, with the increase of service life, the drainage pipeline will appear various degrees of damage, if not timely repair, will cause sewage leakage and pollute the city environment, therefore, the repair of damaged drainage pipeline is an important work content of municipal maintenance. The traditional excavation type repair method needs to dig the ground, exposes the pipeline to repair or replace the problem pipeline, this method needs to consume a lot of manpower, material resources, and has great influence on city traffic and resident life, therefore, at present, various trenchless pipeline repair methods are applied more and more. Common trenchless pipeline repair methods include ultraviolet light curing lining repair, point in situ curing method, pipe piece lining method and spiral winding method, wherein the spiral winding method has the advantages of being applicable to various types of sewage pipeline, fast repair construction speed, water operation without cutting off the pipeline drainage, and has been widely applied in pipeline repair construction. The spiral winding method is to use the manhole in the pipeline, through a special winding machine, spiral winding of strip polyvinyl chloride (PVC) plate belt along the inner wall of the pipeline, and forming a new pipeline through the interlocking of male and female lock buckles, so as to realize the updating and repair of the old pipeline. The existing PVC plate belt for spiral winding repair has a single structure, often has the problems of poor sealing of the joint, insufficient plate structure strength, difficult shape fixation, and loose plate and pipeline wall fitting, which will adversely affect the repair construction and repair effect. UTILITARIAN CONTENT

[0003] In view of the defects of the prior art, the utility model provides a novel drainage pipeline repair lining steel plastic plate belt, which has the advantages of high structural strength, easy shape fixation, good sealing property and strong fitting with the pipeline wall. In order to achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:

[0004] The utility model provides a kind of lining steel plastic plate strip for municipal drainage pipeline repair, including strip plate strip main part, long strip-shaped clamping strip is provided to one side of plate strip main part upwards, long strip-shaped clamping groove is provided to the other side of plate strip main part downwards, and several long strip-shaped reinforcing ribs are provided to the upper surface of plate strip main part and the upper portion of clamping groove along length direction upwards, and the top of each reinforcing rib is provided with the abutting portion of T-shaped cross section at the same height;W-shaped steel lining is installed along length direction between two reinforcing ribs close to the middle of plate strip main part, and the two side edges of steel lining are inclined to stretch upwards and abut on the lower surface of the abutting portion of two side reinforcing ribs;filling groove is provided between part adjacent reinforcing ribs above plate strip main part, and plate strip main part is opened with several filling ports along the position of each filling groove.

[0005] Preferably, the upper surface of the plate strip main part is provided with a sealing strip along the length direction inside the clamping strip, the outside of the clamping groove is provided with a connecting portion along the horizontal direction, and the outer end of the connecting portion is provided with a support plate inclined upwards. When the clamping strip is embedded in the clamping groove of the adjacent plate strip, the end of the support plate abuts against the lower surface of the abutting portion of the reinforcing rib adjacent to the clamping strip of the other plate strip, and the lower surface of the connecting portion is pressed against the sealing strip of the other plate strip.

[0006] Preferably, the top of the cross section of the clamping strip is arc-shaped structure, and has a step portion one concave inward at the lower position of the top, and the inner wall of the cross section of the clamping groove has a step portion two convex outward matched with the step portion one.

[0007] Preferably, the height of the top of the steel lining is flush with the upper surface of each abutting portion.

[0008] Further, the upper surface of the plate strip main part is provided with a steel lining support upwards along the middle line position of the steel lining, and the upper end of the steel lining support is on the lower part of the middle line position of the steel lining.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] 1. The plurality of reinforcing ribs effectively improve the structural strength of the plate strip, and the steel lining arranged along the length direction can make the shape of the wound plate strip easy to fix, so as to avoid the influence of plate strip rebound on construction progress and repair effect.

[0011] 2. The filling groove can be filled with adhesive or cement through the filling port, so that the plate strip and the pipe wall of the drainage pipeline are more closely and firmly attached.

[0012] 3. The connecting portion can be pressed against the sealing strip through the support structure of the support plate, so that the sealing property of the connection of the plate strip is better and is not easy to loosen. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The cross-sectional structure schematic view of the utility model.

[0014] Fig. 2 The local structure schematic view of the connecting portion of the utility model.

[0015] Fig. 3 The utility model discloses a top view structure schematic diagram.

[0016] In the drawing: 1. plate strip body;2. clamping strip;3. clamping groove;4. reinforcing rib;5. abutment portion;6. steel lining;7. filling groove;8. filling port;9. sealing strip;10. connecting portion;11. support plate;12. step part one;13. step part two;14. steel lining support. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the protection scope of the utility model.

[0018] The utility model provides a kind of inner lining steel plastic plate strip for municipal drainage pipeline repair, refer to Figs. 1-3The steel-plastic plate strip comprises a strip-shaped plate strip body 1, a long strip-shaped clamping strip 2 arranged on one side of the plate strip body 1 upwards, and a long strip-shaped clamping groove 3 arranged on the other side of the plate strip body 1 downwards. A plurality of long strip-shaped reinforcing ribs 4 are arranged on the upper surface of the plate strip body 1 and the upper part of the clamping groove 3 along the length direction upwards, and the top of each reinforcing rib 4 is provided with a T-shaped abutting portion 5. In specific applications, the plate strip body 1, the clamping strip 2, the clamping groove 3, the reinforcing rib 4 and the abutting portion 5 are usually integrally formed by using PVC material. A W-shaped steel lining 6 is arranged between the two reinforcing ribs 4 near the middle part of the plate strip body 1 along the length direction, and the two side edges of the steel lining 6 extend upwards and abut against the lower surfaces of the abutting portions 5 of the two reinforcing ribs 4. The W-shaped steel lining 6 can be more stably clamped between the two reinforcing ribs 4. When assembling, the two sides of the plate strip body 1 are bent downwards by using special equipment, the upper ends of the two reinforcing ribs 4 for mounting the steel lining 6 are far away from each other, the steel lining 6 is pressed into the two reinforcing ribs 4 along the length direction, and then the shape of the plate strip body 1 is restored. The lower surfaces of the abutting portions 5 on the two reinforcing ribs 4 are clamped on the two side edges of the steel lining 6, and the steel lining 6 is mounted. A filling groove 7 is arranged between the adjacent reinforcing ribs 4 on the upper part of the plate strip body 1, and a plurality of filling openings 8 are formed in the plate strip body 1 along the positions of the filling grooves 7. The steel-plastic plate strip is suitable for trenchless repair of large drainage pipes. During repair, the plate strip is spirally wound on the inner wall of the old pipe by using traction equipment and winding devices. The clamping strip 2 and the clamping groove 3 on the adjacent plate strips are embedded together. The upper surfaces of the abutting portions 5 on the plate strip body 1 are attached to the inner wall of the original pipe. The lower surface of the plate strip body 1 forms a new inner wall surface of the pipe. The adhesive is injected through the filling opening 8, and the adhesive is spirally injected into the space between the plate strip body 1 and the inner wall of the original pipe along the filling groove 7. After solidification, the plate strip and the original pipe wall are tightly and closely connected. The plate strip has high structural strength, the shape of the plate strip is easy to fix after winding, and the plate strip is more tightly and closely attached to the wall of the drainage pipe.

[0019] In order to further improve the sealing performance of the plate strip connecting part, in a preferred embodiment, referring to Fig. 2As shown, the upper surface of the plate strip body 1 is provided with a sealing strip 9 at the inner side of the clamping strip 2 along the length direction, the outer side of the clamping groove 3 is provided with a connecting part 10 along the horizontal direction, the outer end of the connecting part 10 is provided with a support plate 11 extending upwardly, when the clamping strip 2 is embedded in the clamping groove 3 of the adjacent plate strip, the end of the support plate 11 abuts against the lower surface of the abutting part 5 of the reinforcing rib 4 adjacent to the clamping strip 2 of the other plate strip, and the lower surface of the connecting part 10 is pressed against the sealing strip 9 of the other plate strip. In order to improve the clamping effect between the clamping strip 2 and the clamping groove 3, the clamping strip 2 is preferably provided with a circular arc structure at the top, and a step part 12 is arranged at the lower position of the top and recessed inwardly, the clamping groove 3 is matched with the clamping strip 2, and the top of the cross section is provided with a circular arc structure, and a step part 13 is arranged at the lower position of the top and protrudes outwardly and matched with the step part 12. Since the PVC material has a certain elasticity, the top of the clamping strip 2 can be extruded from the opening below the clamping groove 3, after the top of the clamping strip 2 enters the clamping groove 3, the step part 13 clamps the step part 12 from below to upward, so that the clamping strip 2 can be effectively prevented from being pulled out of the clamping groove 3.

[0020] In order to ensure that the plate strip body 1 is more flatly attached to the original pipeline wall, in a preferred embodiment, the height of the top of the steel lining 6 is flush with the upper surface of each abutting part 5, and a long strip-shaped steel lining support 14 is arranged on the upper surface of the plate strip body 1 and upwardly arranged along the center line of the steel lining 6, and the upper end of the steel lining support 14 is arranged on the lower part of the center line of the steel lining 6. The arrangement of the steel lining support 14 can facilitate the centering when the steel lining 6 is assembled, and can effectively prevent the steel lining 6 from being deformed when being extruded.

[0021] In summary, the utility model discloses a kind of inner lining steel plastic plate strips for municipal drainage pipeline repair, which can effectively solve the problems of low structural strength, poor sealing performance and insufficient adhesion to original pipeline of existing plate strips, and has high utilization value and use significance, and can be widely applied.

[0022] The above describes preferred embodiments of the utility model, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be considered within the protection scope of the utility model.

Claims

1. A steel-plastic sheet lining strip for municipal sewer pipe repair, comprising a strip-shaped sheet strip body (1), characterized in that: The long strip-shaped clamping strip (2) is arranged on one side edge of the plate strip body (1) upwardly, the clamping groove (3) matched with the clamping strip (2) is arranged on the other side of the plate strip body (1) downwardly, the long strip-shaped reinforcing ribs (4) are arranged on the upper surface of the plate strip body (1) and the upper part of the clamping groove (3) along the length direction upwardly, the top of each reinforcing rib (4) is provided with the T-shaped abutting part (5) at the same height, the W-shaped steel lining (6) is arranged between the two reinforcing ribs (4) near the middle part of the plate strip body (1) along the length direction, the two side edges of the steel lining (6) extend upwardly and abut against the lower surface of the abutting part (5) of the two side reinforcing ribs (4), the filling grooves (7) are arranged between the adjacent reinforcing ribs (4) on the upper part of the plate strip body (1), and the filling openings (8) are arranged on the plate strip body (1) along the position of each filling groove (7).

2. A steel-plastic sheet band for use in lining a municipal sewer pipe according to claim 1, characterized in that: The sealing strip (9) is arranged on the upper surface of the plate strip body (1) along the length direction at the position inside the clamping strip (2), the connecting part (10) is arranged on the outer side of the clamping groove (3) along the horizontal direction, the supporting plate (11) extending upwardly is arranged on the outer end of the connecting part (10), when the clamping strip (2) is embedded in the clamping groove (3) of the adjacent plate strip, the end of the supporting plate (11) abuts against the lower surface of the abutting part (5) of the reinforcing rib (4) adjacent to the clamping strip (2) on the other plate strip, and the lower surface of the connecting part (10) is pressed against the sealing strip (9) of the other plate strip.

3. A steel-plastic sheet band for use in lining a municipal sewer pipe according to claim 1, wherein: The top of the clamping strip (2) is in the circular arc structure, and the step part one (12) is arranged inwardly at the lower position of the top, and the inner wall of the clamping groove (3) is provided with the step part two (13) matched with the step part one (12).

4. A steel-plastic sheet band for use in lining a municipal sewer pipe according to claim 1, characterized in that: The height of the top of the steel lining (6) is flush with the upper surface of each abutting part (5).

5. A steel-plastic sheet strip for use in lining a municipal sewer pipe according to claim 4, wherein: The steel lining support (14) is arranged on the upper surface of the plate strip body (1) along the middle line position of the steel lining (6) upwardly, and the upper end of the steel lining support (14) is arranged on the lower part of the middle line position of the steel lining (6).

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