CN214403609U - Water self-expanding sealing type water stop - Google Patents

Abstract

The utility model provides a meet water self-expanding canned type waterstop, including waterstop body (3), set up central deformation zone (1) on the waterstop, central deformation zone (1) bilateral symmetry is provided with fin (4), waterstop body (3) surface sets up water-swelling adhesive tape (31). The utility model discloses have good stagnant water performance, and easy welding, quality are light, prevent scurrying water performance and durability simultaneously better, the construction is more convenient.

Description

Water self-expanding sealing type water stop

Technical Field

The utility model belongs to the technical field of the waterproof technique of building and specifically relates to a meet water self-expanding canned type waterstop.

Background

The water-proof and drainage in the railway tunnel construction directly relates to the tunnel construction quality and the personnel safety in construction and use, and generally, a waterproof plate is laid between a primary lining and a secondary lining of the tunnel, and a water stop is laid at a deformation joint and a construction joint of the secondary lining of the tunnel.

The common water stop for railway tunnels mainly adopts rubber high-molecular polymers as raw materials, and is formed after vulcanization, so that the common water stop has the defects of large self weight, difficult welding of joints, no bonding with a contact interface of two-lining concrete and the like in actual use, causes inconvenience in later construction, and has higher requirements on the quality of workers. Aiming at the problems, a novel water stop belt appears in China, such as: the invention discloses a self-adhesive water stop and a preparation method thereof, and relates to a self-adhesive water stop for a patent with application number CN201721178439 (publication number CN207829025, publication date 2018, 9 and 7), and a Chinese invention patent with application number CN201711005682 (publication number CN107699081A, publication date 2018, 2 and 16), wherein the structural form of the water stop in the patent adopts self-adhesive to realize interface adhesion with concrete, and the problem that rubber is heavy and difficult to weld is not involved.

With the enhancement of comprehensive national force, the construction of railways, highways, subways and municipal engineering in China is greatly accelerated, and the construction of tunnels in high-water-pressure areas puts higher requirements on engineering water leakage prevention. Therefore, there is a need to develop a plastic water stop having better water stopping performance, water pressure resistance and durability and more convenient construction.

SUMMERY OF THE UTILITY MODEL

In order to overcome the existing defects, the utility model provides a water self-expanding sealing type water stop.

The utility model provides a meet water self-expanding canned type waterstop, includes the waterstop body, set up central deformation zone on the waterstop, central deformation zone bilateral symmetry is provided with the fin, waterstop body surface sets up the water swelling adhesive tape. The expansion adhesive tape is adhered, welded or pressed on the substrate layer, and the adhesive tape is arranged in bilateral symmetry and can be single-sided or double-sided; the self-adhesive layer is coated on the base material layer in a hot melting way, and the strip-shaped adhesive layers are arranged in a bilateral symmetry way and can be single-sided or double-sided.

Wherein, the waterstop still includes from the viscose layer, sets up the isolation rete on the viscose layer, from the viscose layer setting up between waterstop body substrate layer and isolation rete.

Optionally, the central inflection zone is upwardly and downwardly closed and has a shape of ". O". C,

Or (2) to (d).

Optionally, the central deformation region has a "spring-type" structure, and the shape thereof is "N" -type, "M" -type, "omega" -type,

The model is,

One of the types.

Wherein, the material of waterstop body substrate layer is modified polyethylene plastics, polyurethane, rubber.

Wherein, the material of self-adhesion layer is butyl rubber class self-adhesion glue.

Wherein, the material of barrier film layer is acrylic acid anti-sticking coating.

Optionally, the ribs are single sided.

Alternatively, the free ends of the ribs may be provided in a "T" shape or "I".

Optionally, the waterstop is not provided with a central deformation area.

Alternatively, the two ends of the waterstop may be provided in a "dovetail" or "-" type.

Optionally, the number of the ribs and the water-swellable adhesive tape is plural.

The water-swelling sealed water stop belt provided by the utility model has a composite structure, can repeatedly swell when meeting water, and the thickness of the adhesive tape does not exceed the thickness of the convex rib, and accords with the relevant technical regulations of the industry; the isolating membrane does not need to be peeled off when being installed, and can be reacted with post-cast concrete to disappear. Compared with the prior art, the utility model has the advantages of good stagnant water performance, prevent simultaneously that water performance and durability are better, the construction is more convenient, still have easy welding, the quality is light when adopting the modified plastics material.

Drawings

Fig. 1 is a schematic cross-sectional view of a water-swelling sealed water stop.

Fig. 2 is a cross-sectional view of a water-swelling self-sealing type water stop without a self-adhesive layer.

Fig. 3 is a schematic view of embodiment 1 of a water-self-swelling seal type water stop adhesive layer without/without a self-adhesive layer.

Fig. 4 is a schematic view of embodiment 2 of the water self-swelling sealing type water stop with/without self-adhesive glue layer.

FIG. 5 is a schematic view of embodiment 3 of a water-swelling adhesive tape for a water-self-swelling sealing type water stop.

FIG. 6 is a schematic view of embodiment 4 of a water-swelling adhesive tape for a water-self-swelling sealing type water stop.

Detailed Description

The following describes the self-expanding sealing type water stop in water according to the present invention with reference to the accompanying drawings and specific embodiments.

Fig. 1 and 2 show that, a water-stop of water self-expanding canned type, including waterstop body 3, set up central deformation district 1 on the waterstop, 1 bilateral symmetry in central deformation district is provided with fin 4, 3 surfaces on the waterstop body set up water-swelling adhesive tape 31.

The waterstop still can include from viscose layer 2, sets up isolation rete 11 on the viscose layer 2, from viscose layer 2 sets up between waterstop body 3 and isolation rete 11.

The central deformed area 1 is of a top-bottom closed type and has a shape of ". O" - ", or,

One of the types.

In one embodiment, as shown in FIG. 3, the central deformation region 1 has a "spring-type" structure, and has a shape of "N", "M", "omega" or "spring-type

The model is,

One of the types.

The material of the water stop belt body base material layer 3 is modified polyethylene plastic, polyurethane and rubber.

The self-adhesive layer 2 is made of butyl rubber self-adhesive.

The material of the isolation film layer 11 is an acrylic anti-sticking coating.

In one embodiment, shown in fig. 4, the waterstop is not provided with a central deformation zone 1.

In one embodiment, shown in fig. 5 and 6, the ribs 4 are provided on a single side.

In one embodiment, the central deforming zone 1 may be of any shape, and the number of ribs 4 and water-swellable adhesive strips 31 is plural.

Meet water self-expanding canned type waterstop unanimous with traditional waterstop construction methods at the installation construction methods on scene, the welding adopts hot melt welding or ultrasonic bonding.

In the water-swelling self-swelling sealed water stop belt, the water-swelling adhesive tape can repeatedly swell in water in subsequent use, so that physical self-swelling sealing water stop is realized; when the self-adhesive is adopted, the reactive anti-sticking coating film is used on the surface of the self-adhesive, the film does not need to be coated, the construction is convenient and the direct use is realized, and the interface defect caused by forgetting to tear the isolating film by workers is avoided; in addition, the deformation area in the middle of the self-expansion sealing type water stop belt can freely expand and contract along with the change of the gap when meeting water, and meanwhile, the expansion function of the self-expansion sealing type water stop belt is reduced and even fails because concrete is mixed into the deformation area during pouring; if the water stop is a plastic body, one or more of materials such as EVA, MPE, HEP, POE and the like are used in the raw materials for flexible modification, so that the waterproof board is light in weight, good in mechanical property and easy to weld.

Finally, it should be noted that the above embodiments are only intended to describe the technical solution of the present invention and not to limit the technical method, the present invention can be extended to other modifications, changes, applications and embodiments in application, and all such modifications, changes, applications, embodiments are therefore considered to be within the spirit and teaching scope of the present invention.

Claims (7)

1. The utility model provides a meet water self-expanding canned type waterstop, includes waterstop body (3), its characterized in that, set up central deformation district (1) on waterstop body (3), central deformation district (1) bilateral symmetry is provided with fin (4), waterstop body (3) surface sets up water-swelling adhesive tape (31), the material of waterstop body (3) substrate layer is modified polyethylene.

2. The water-swelling sealing type water stop according to claim 1, wherein the water stop comprises a self-adhesive layer (2), an isolation film layer (11) is provided on the self-adhesive layer (2), and the self-adhesive layer (2) is provided between the water stop body (3) and the isolation film layer (11).

3. Self-sealing water stop upon water contact according to claim 1, characterized in that said central deformation zone (1) is of the upper and lower seal type, having the shape "o", or,

One of the types.

4. The water-swelling sealed type water stop according to claim 1, wherein said central deformation zone (1) is of a "spring type" structure having a shape of "N", "M", "Ω

The model is,

One of the types.

5. The water-swelling sealing type water stop according to claim 2, wherein the self-adhesive layer (2) is made of butyl rubber self-adhesive.

6. The water self-swelling sealing type water stop according to claim 2, wherein the barrier film layer (11) is made of an acrylic anti-sticking coating.

7. The water-self-swelling sealing type water stop according to claim 1, wherein the central deformation zone (1) may be of any shape; the number of the convex ribs (4) and the water-swelling adhesive tapes (31) is multiple.

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