CN219410964U - Water stop strip suitable for prefabricated pipe gallery - Google Patents

Abstract

The utility model discloses a water stop strip suitable for a prefabricated pipe gallery, which comprises an elastic main part with a rectangular or trapezoid cross section, wherein the top surface of the elastic main part is provided with a class A water stop main part, the bottom surface of the elastic main part is provided with a class B water stop main part, and two side surfaces of the elastic main part are provided with self-adhesive main parts. The upper top surface, the lower bottom surface, both sides face of elasticity owner portion all are equipped with the recess, and stagnant water owner portion sets up in the recess with from gluing owner portion for high-elastic sealing pad and sealing strip integration offer too many slot positions when need not the installation, avoid to realize convenient fluting and design prefabricated piping lane into to splice formula, piping lane prefabricated mould is difficult to design and processing scheduling problem, and the bonding effect of gluing owner portion prevents simultaneously that sealed sealing strip from appearing displacement, slump etc. influence the problem of construction progress in the installation.

Description

Water stop strip suitable for prefabricated pipe gallery

Technical Field

The utility model relates to a city underground comprehensive pipe gallery technology, in particular to a water stop strip suitable for a prefabricated pipe gallery.

Background

In recent years, with the development of urban underground utility tunnel construction in response to nations, various prefabricated tunnel forming methods and splicing processes are gradually matured. The water stop strip suitable for the prefabricated pipe gallery becomes an essential water stop and sealing important component for underground pipe gallery construction.

At present, by adopting a splicing construction method after prefabrication of a pipe gallery, the sealing effect of the joint of the pipe gallery is inferior to that of a natural pouring method, so that a large amount of water stop bars are required to be used, and in order to connect the spliced pipe gallery with high strength, a large pressure is required to be applied, so that the joint between the prefabricated pipe galleries is reliable, the end face of the pipe gallery is protected, and a large amount of high-elastic sealing gaskets are required to be used.

In order to simultaneously take the effects of sealing, buffer protection and water stopping into consideration, the phenomenon that the prior pipe gallery is overmuch in slotting generally occurs, and the prefabricated pipe gallery is designed to be spliced and inserted for conveniently slotting, so that the pouring process is complicated, and the pipe gallery prefabricated die is difficult to design and process. The used water stop strip and the high-elastic sealing gasket do not have the functions of quick positioning and pre-fixing, so that the problems of influence on the construction progress caused by displacement, slump and the like of the adhesive tape often occur in the process of construction fixation.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to provide a water stop strip which is suitable for a prefabricated pipe gallery so as to solve the technical problems in the prior art.

The utility model aims at realizing the following technical scheme:

the utility model discloses a water stop strip suitable for a prefabricated pipe gallery, which comprises an elastic main part 1 with a rectangular or trapezoid cross section, wherein an A-type water stop main part 2 is arranged on the top surface of the elastic main part 1, a B-type water stop main part 3 is arranged on the bottom surface of the elastic main part 1, and self-adhesive main parts 4 are arranged on two side surfaces of the elastic main part 1.

Compared with the prior art, the water stop strip suitable for the prefabricated pipe gallery, provided by the utility model, has the advantages that the high-elastic sealing gasket and the water stop strip are integrated, excessive slots are not required to be formed during installation, the problems that the prefabricated pipe gallery is designed to be spliced and inserted for realizing convenient slotting, the prefabricated pipe gallery die is difficult to design and process and the like are avoided, and meanwhile, the problem that the displacement, slump and the like of the sealing water stop strip influence the construction progress in the installation process is prevented due to the adhesive effect of the self-adhesive main part.

Drawings

FIG. 1 is a schematic structural view of a cross section of a water stop strip adapted to a prefabricated pipe gallery according to an embodiment of the present utility model;

in the figure:

1-an elastic main part; 1A-upper top surface groove; 1B-a lower bottom surface special-shaped groove; 1C-double sided grooves; 1D-stress buffer slots; 1E-pressurizing counterforce hole; a 2-A type water stopping main part; 2A-an arcuate flange; 2B-clamping the step; 2C-drainage grooves; a 3-B type water stop main part; 3A-special-shaped steps; 3B-a continuous arcuate flange; 3C-a deformation buffer tank; 4-self-adhesive main part; 5-structural elastic tube.

Detailed Description

The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it will be apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, which do not constitute limitations of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The terms that may be used herein will first be described as follows:

the term "and/or" is intended to mean that either or both may be implemented, e.g., X and/or Y are intended to include both the cases of "X" or "Y" and the cases of "X and Y".

The terms "comprises," "comprising," "includes," "including," "has," "having" or other similar referents are to be construed to cover a non-exclusive inclusion. For example: including a particular feature (e.g., a starting material, component, ingredient, carrier, formulation, material, dimension, part, means, mechanism, apparatus, step, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product or article of manufacture, etc.), should be construed as including not only a particular feature but also other features known in the art that are not explicitly recited.

The term "consisting of … …" is meant to exclude any technical feature element not explicitly listed. If such term is used in a claim, the term will cause the claim to be closed, such that it does not include technical features other than those specifically listed, except for conventional impurities associated therewith. If the term is intended to appear in only a clause of a claim, it is intended to limit only the elements explicitly recited in that clause, and the elements recited in other clauses are not excluded from the overall claim.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and the like should be construed broadly to include, for example: the connecting device can be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms herein above will be understood by those of ordinary skill in the art as the case may be.

The terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description and to simplify the description, and do not explicitly or implicitly indicate that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure.

What is not described in detail in the embodiments of the present utility model belongs to the prior art known to those skilled in the art. The specific conditions are not noted in the examples of the present utility model and are carried out according to the conditions conventional in the art or suggested by the manufacturer. The reagents or apparatus used in the examples of the present utility model were conventional products commercially available without the manufacturer's knowledge.

The utility model discloses a water stop strip suitable for a prefabricated pipe gallery, which comprises an elastic main part 1 with a rectangular or trapezoid cross section, wherein an A-type water stop main part 2 is arranged on the top surface of the elastic main part 1, a B-type water stop main part 3 is arranged on the bottom surface of the elastic main part 1, and self-adhesive main parts 4 are arranged on two side surfaces of the elastic main part 1.

The top surface of elasticity owner portion 1 vertically is equipped with a plurality of recesses, and every recess is equipped with one A class stagnant water owner portion 2, A class stagnant water owner portion 2 upper end is equipped with the arc flange, A class stagnant water owner portion 2 lower extreme is equipped with the clamping step, A class stagnant water owner portion 2's lower extreme pass through the clamping step install in the recess, adjacent form the drainage groove between the arc flange of A class stagnant water owner portion 2.

The elastic main part 1 is provided with a plurality of grooves on two sides, and each groove is provided with one self-adhesive main part 4.

The lower bottom surface of the elastic main part 1 is longitudinally provided with a dovetail groove, the top end of the B-type water stop main part 3 is clamped into the dovetail groove through a dovetail step, the bottom end of the B-type water stop main part 3 is longitudinally provided with a plurality of arc-shaped flanges, and groove-shaped intervals between adjacent arc-shaped flanges are used as deformation buffer grooves.

Two stress buffering grooves 1D are longitudinally formed in the bottom surface of the dovetail groove, and the two stress buffering grooves 1D are symmetrically arranged in the central axis.

The elastic main part 1 is internally provided with at least one pressurizing counter-force hole 1E, the pressurizing counter-force hole 1E is a pipe hole along the longitudinal direction of the elastic main part 1, and at least one pressurizing counter-force hole 1E is internally provided with a structural elastic pipe 5.

The elastic main part 1 is made of styrene-butadiene rubber, the class A water-stop main part 2 and the class B water-stop main part 3 are made of ethylene propylene diene rubber, the self-adhesive main part 4 is made of butyl rubber, and the structural elastic tube 5 is made of neoprene rubber.

In summary, the water stop strip suitable for the prefabricated pipe gallery combines the sealing and buffering protection advantages of the high-elasticity sealing gasket, the novel waterproof advantage of the water-swelling water stop strip comprises an elastic main part, a water stop main part and a self-adhesion main part, grooves are formed in the upper top surface, the lower bottom surface, the left side surface and the right side surface of the elastic main part, the water stop main part and the self-adhesion main part are arranged in the grooves, the high-elasticity sealing gasket and the water stop strip are integrated, excessive grooves are formed during installation, the problem that the prefabricated pipe gallery is designed to be spliced for realizing convenient slotting, the pipe gallery prefabricated die is difficult to design and process and the like is avoided, and meanwhile, the problem that the construction progress is influenced due to displacement, slump and the like of the sealing water stop strip is prevented by the adhesive effect of the self-adhesion main part in the installation process.

In order to more clearly demonstrate the technical scheme and the technical effects provided by the utility model, the following detailed description of the embodiments of the utility model is given by way of specific examples.

The water stop strip suitable for the prefabricated pipe gallery comprises an elastic main part, at least one water stop main part and at least one viscous main part.

The water-stopping main part is divided into an A-type water-stopping main part and a B-type water-stopping main part, the A-type water-stopping main part and the B-type water-stopping main part are different in appearance and are respectively arranged at different positions of the elastic main part so as to adapt to the real-time change of pressure in the pipe gallery installation joint extrusion process.

The top surface is equipped with the recess that is not less than one on the elasticity main part, A class stagnant water main part is equipped with the arc flange, and the recess forms the clamping step is seted up to both sides. The clamping steps are matched with the shape and the size of the groove on the upper top surface of the elastic main part, the class A water stop main part is arranged in the groove through the clamping steps, and if the number of the class A water stop main parts is more than one, drainage grooves are formed between the arc-shaped flanges of the adjacent water stop main parts.

The drainage groove is a diversion pipeline following the extending directions of the water stop main part and the elastic main part, so that water seeping from a crack of the concrete pipe building gallery and a splicing gap is guided, the water pressure born by the water stop main part is reduced, and the ageing of the water stop main part is slowed down.

The A-type water stop main part is a water-swelling water stop strip, and is contacted with water after being guided by water flow of the drainage groove, so that the water stop strip is tightly contacted with the joint surface of the pipe gallery, and the water stop effect is improved.

The A-type water stop main parts are arranged in a staggered mode with the self-adhesive main parts according to different construction working conditions. The self-adhesive main part and the groove have the same shape and size and have an adhesive effect, the two lateral sides of the elastic main part are provided with the grooves, and the self-adhesive main part can also be arranged in the grooves on the two lateral sides.

The bottom surface of the elastic main part is provided with a special-shaped groove which is a dovetail shape, the top end of the B-type water stop main part is provided with a special-shaped step, the shape and the size of the B-type water stop main part are consistent with those of the special-shaped groove, the bottom end of the B-type water stop main part is provided with a plurality of arc-shaped flanges, and a groove-shaped interval is reserved between every two adjacent flanges to serve as a deformation buffer groove. The buffer groove forms an inner space, so that the plurality of arc-shaped flanges are in a mutually complementary state when being deformed.

The elastic main part is internally provided with at least one pressurizing counter-force hole, the pressurizing counter-force hole is a pipe hole along the extending direction of the elastic main part, and at least one elastic pipe with a structure is arranged in the hole.

Stress buffer grooves are formed in the elastic main portion, the stress buffer grooves are located at the junction of the special-shaped groove and the special-shaped step, the stress buffer grooves are formed in two, and the positions of the stress buffer grooves are symmetrical in central axis.

The elastic main part adopts styrene-butadiene rubber, the water-stopping main part adopts ethylene propylene diene monomer rubber, the self-adhesive main part adopts butyl rubber, and the structural elastic tube adopts chloroprene rubber.

The water stop strip adapted to the prefabricated pipe gallery is used for making corresponding arrangement and combination of the elastic main part, the water stop main part, the self-adhesive main part and the structural elastic pipe according to actual working conditions before use, is matched into the groove, the special-shaped groove or the pressurizing counter force hole, and forms an integrated state after being processed by hot-pressing extrusion equipment.

In summary, the beneficial technical effects of the utility model are as follows:

1. through combining the high-elasticity elastic main part with the high-deformation water-swelling type water-stopping main part, the sealing and buffering protection effects of the high-elasticity material are guaranteed, the water-stopping effects are fused, and the whole compression amount is uniform.

2. The high-elasticity elastic main part is combined with the self-adhesive main part, so that the problem of poor positioning stability of the water stop bar assembly construction is solved, and the construction time is shortened.

3. Through combining the high-elasticity elastic main part with the high-strength high-toughness structural elastic pipe, the water stop strip structure reliability degree and the elastic structural force of the prefabricated pipe gallery are integrally improved.

4. Through a plurality of grooves and a plurality of collocation schemes and after assembly, the whole hot extrusion molding has very strong suitability for the construction conditions of different working conditions.

Example 1

As shown in fig. 1:

the water stop strip suitable for the prefabricated pipe gallery is used for connecting, assembling and splicing construction of the urban underground comprehensive prefabricated pipe gallery, so that buffer protection and sealing water stop are carried out on the joint of the two pipe galleries.

A water stop strip suitable for a prefabricated pipe gallery comprises an elastic main part 1, at least one A type water stop main part 2, at least one B type water stop main part 3 and at least one self-adhesive main part 4.

The upper top surface of the elastic main part is provided with at least one upper top surface groove 1A, the class A water stop main part is provided with an arc flange 2A, grooves are formed in the left side and the right side of the arc flange to form clamping steps 2B, the upper top surface groove 1A and the clamping steps 2B are identical in shape and size, and the clamping steps 2B are arranged in the upper top surface groove 1A to complete the assembly of the class A water stop main part 2 and the elastic main part 1.

The lower bottom surface of the elastic main part is provided with a lower bottom surface special-shaped groove 1B which is dovetail-shaped, the top end of the B-type water stop main part is provided with a special-shaped step 3A, the special-shaped groove 1B has the same shape and size as the special-shaped step, the special-shaped step 3A is installed in the special-shaped groove 1B, and the assembly of the B-type water stop main part 3 and the elastic main part 1 is completed.

If the number of the A-type water stop main parts 2 is greater than one, the gap between the arc-shaped flanges 2A of the adjacent A-type water stop main parts 2 and the installation step surface of the upper top surface groove 1A enclose a drainage groove 2C, the A-type water stop main parts 2 are in direct contact with the front end surface of the prefabricated pipe gallery in the pipe joint assembling process, water seeping out from the concrete pipe gallery crack and the compression joint gap is guided, the water pressure born by the water stop main parts is reduced, the ageing of the A-type water stop main parts is slowed down, the A-type water stop main parts are expanded when being made of water, the contact between the drainage groove and the pipe gallery joint surface is more close, and the water stop effect is improved.

The bottom end of the B-type water stop main part 3 presents a plurality of continuous arc flanges 3B, and a groove-shaped interval exists between adjacent parts and is a deformation buffer groove 3C. The contact end face of the prefabricated pipe gallery tail end positioning groove is directly contacted with the B-type water stop main part 3 in the pipe joint assembling process, the continuous arc-shaped flange 3B receives force of about 448t when the pipe gallery is extruded and assembled, the compression ratio of the rubber strip is between 25% and 50%, the B-type water stop main part 3 is fully deformed through the space formed by the deformation buffer groove 3C, and the mutual deformation of the continuous arc-shaped flanges 3B is in a mutually complementary state, so that the water stop strip is more tightly attached to the surface of the pipe gallery.

The elastic main part 1 is deformed too much due to the B-type water stop main part 3 in the pipe gallery extrusion assembly process at the joint of the bottom surface special-shaped groove 1B and the special-shaped step 3A, so that stress concentration is generated inside, the stress concentration points or corners can be eliminated by the reserved stress buffer grooves 1D in the process of longitudinally expanding the B-type water stop main part 3 due to the transverse extrusion of the elastic main part 1 under the action of pressure, and fatigue cracking of the elastic main part in the extrusion process is avoided.

The elastic main part 1 is provided with a double-sided groove 1C, the self-adhesive main part 4 is arranged in the double-sided groove 1C, and the self-adhesive main part 4 is in direct contact with a positioning groove formed in the pipe gallery for arranging the water stop strips, so that the water stop strips are positioned in advance to prevent dislocation and slump of the water stop strips.

The elastic main part 1 is internally provided with at least one boost counter force hole 1E, at least one structural elastic tube 5 is arranged in the boost counter force hole 1, when the elastic main part 1 is extruded by the outside, the structural elastic tube 5 is used for carrying out auxiliary support on the elastic main part 1 and is jointly suitable for the change of the outside pressure, so that the compression stress of the boost counter force hole 1E without arranging the structural elastic tube 5 is reduced.

In order to adapt to different construction environments and construction conditions, the elastic main part 1, the class A water stop main part 2, the class B water stop main part 3, the self-adhesive main part 4 and the structural elastic 5 pipe are required to be correspondingly arranged and combined according to actual working conditions before being used, and are matched into the upper top surface groove 1A, the lower bottom surface special-shaped groove 1B or the supercharging counterforce hole 1E, and are processed by hot-pressing extrusion equipment to form an integrated state for use.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims. The information disclosed in the background section herein is only for enhancement of understanding of the general background of the utility model and is not to be taken as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.

Claims (6)

1. The utility model provides a water sealing strip of adaptation in prefabricated piping lane, its characterized in that includes that one cross section is rectangle or trapezoidal elasticity owner portion (1), the top surface of elasticity owner portion (1) is equipped with A class stagnant water owner portion (2), the bottom surface of elasticity owner portion (1) is equipped with B class stagnant water owner portion (3), the both sides face of elasticity owner portion (1) is equipped with from glutinous owner portion (4).

2. The water stop strip suitable for the prefabricated pipe gallery according to claim 1, wherein a plurality of grooves are longitudinally formed in the top surface of the elastic main portion (1), each groove is provided with one class-A water stop main portion (2), an arc-shaped flange is arranged at the upper end of the class-A water stop main portion (2), a clamping step is arranged at the lower end of the class-A water stop main portion (2), the lower end of the class-A water stop main portion (2) is arranged in the groove through the clamping step, and a drainage groove is formed between the arc-shaped flanges of the adjacent class-A water stop main portions (2).

3. The strip according to claim 2, characterized in that the elastic main portion (1) is provided on both sides with a plurality of grooves, each groove being provided with one of the self-adhesive main portions (4).

4. The water stop strip suitable for the prefabricated pipe gallery according to claim 3, wherein a dovetail groove is longitudinally formed in the lower bottom surface of the elastic main part (1), the top end of the class-B water stop main part (3) is clamped into the dovetail groove through a dovetail step, a plurality of arc-shaped flanges are longitudinally arranged at the bottom end of the class-B water stop main part (3), and groove-shaped intervals between adjacent arc-shaped flanges are used as deformation buffer grooves;

two stress buffering grooves (1D) are longitudinally formed in the bottom surface of the dovetail groove, and the two stress buffering grooves (1D) are symmetrically arranged in the central axis.

5. The water stop strip adapted to the prefabricated pipe gallery according to claim 4, wherein at least one pressurizing counter force hole (1E) is arranged inside the elastic main portion (1), the pressurizing counter force hole (1E) is a pipe hole along the longitudinal direction of the elastic main portion (1), and a structural elastic pipe (5) is arranged in at least one pressurizing counter force hole (1E).

6. The water stop strip suitable for the prefabricated pipe gallery according to claim 5, wherein the elastic main portion (1) is made of styrene-butadiene rubber, the class-A water stop main portion (2) and the class-B water stop main portion (3) are made of ethylene propylene diene rubber, the self-adhesive main portion (4) is made of butyl rubber, and the structural elastic pipe (5) is made of neoprene rubber.