CN218374057U - Cast-in-place piping lane expansion joint rubber waterstop - Google Patents

Abstract

The utility model belongs to the technical field of pipe gallery construction, in particular to a cast-in-situ pipe gallery expansion joint rubber waterstop which is arranged at the expansion joint of a concrete pipe gallery; the concrete pipe gallery comprises two pipe gallery sections with expansion joints formed between the two pipe gallery sections, the upper ends of the two pipe gallery sections close to each other are provided with placing grooves, and concrete at the lower part of each placing groove is densely filled with filling agents; the rubber waterstop comprises a horizontal waterstop section and a U-shaped waterstop section, and the U-shaped waterstop section comprises a U-shaped waterstop main body and a U-shaped waterstop lip; be equipped with the flexible bonding layer between rubber waterstop and standing groove, the expansion joint, the top of rubber waterstop is equipped with stagnant water briquetting and stagnant water clamp plate in proper order, and the part that the stagnant water briquetting corresponds U type stagnant water section top is equipped with elasticity and compresses tightly the section, through bolt construction reciprocal anchorage between stagnant water briquetting, rubber waterstop and the piping lane section. The utility model provides a because of waterstop lower part concrete is difficult to the vibration closely knit, take place easily around the problem of oozing, improved the stagnant water effect greatly.

Description

Cast-in-place piping lane expansion joint rubber waterstop

Technical Field

The utility model belongs to the technical field of the piping lane construction, especially, relate to a cast-in-place piping lane expansion joint rubber waterstop.

Background

With the continuous development of municipal engineering in China, the municipal engineering is infrastructure engineering of cities, is an engineering on which the cities live and develop, and is the basis of social and economic activities of the whole cities. The construction of first-class urban infrastructure is a basic condition for promoting the sustainable development of urban economy and society in China, and is an important factor for enhancing the comprehensive competitiveness of cities. With the development of national economy, urban infrastructure in China is also rapidly developed, working conditions of urban and rural people are continuously improved, and living standard is rapidly improved, so that the demand of people on municipal infrastructure is increased day by day. At the present stage, along with the gradual shortage of land space, box culvert and utility tunnel have become the important choice of city municipal transformation. The installation of the water-stop expansion joint is a construction technology which is commonly applied in underground engineering, particularly water conveying building engineering, and the installation quality of the water-stop expansion joint is a key process for determining the success or failure of the underground engineering construction. Traditional stagnant water expansion joint installation mainly buries formula, adhesive formula and clamp plate formula three kinds for well, all has not enough in the work progress, mainly shows: because the concrete at the lower part of the waterstop is difficult to vibrate and compact, the water-stopping effect is influenced because the concrete is easy to leak, and the waterstop is difficult to repair or replace; the requirement on pasting construction is high, and the construction quality is not easy to guarantee; the water stop belt has the problems that the water stop effect is influenced due to uneven fastening force and uneven fastening surface.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the above-mentioned prior art, provide a cast-in-place piping lane expansion joint rubber waterstop that has improved the stagnant water effect greatly.

The utility model discloses a technical scheme who takes for solving this problem is:

a cast-in-situ pipe gallery expansion joint rubber water stop is arranged at an expansion joint of a concrete pipe gallery;

wherein: the concrete pipe gallery comprises two pipe gallery sections with expansion joints formed between the two pipe gallery sections, the upper ends of the two pipe gallery sections close to each other are provided with placing grooves, and concrete at the lower parts of the placing grooves is densely filled with filling agents;

the rubber water stop belt comprises a horizontal water stop section laid above the placing groove and a U-shaped water stop section extending into the expansion joint, the U-shaped water stop section comprises a U-shaped water stop main body and U-shaped water stop lip edges respectively formed on two sides of the U-shaped water stop main body, and the U-shaped water stop main body and the horizontal water stop section are integrally formed;

be equipped with flexible adhesive linkage between rubber waterstop and standing groove, the expansion joint, the top of rubber waterstop is equipped with stagnant water briquetting and stagnant water clamp plate in proper order, the part that the stagnant water briquetting corresponds U type stagnant water section top is equipped with and is used for compressing tightly the elasticity of U type stagnant water section and absorption joint displacement and compresses tightly the section, through bolted construction reciprocal anchorage between stagnant water briquetting, rubber waterstop and the piping lane section.

Preferably, the concrete at the lower part of the placing groove is filled compactly in a modified epoxy mortar repairing or glue injecting mode, and the flexible bonding layer is arranged on the outer surface of the placing groove and the outer surface of the expansion joint.

Further preferably, the rubber waterstop is compressed tightly on the flexible bonding layer by the water stop pressing block, and the outer edges of the water stop pressing block and the rubber waterstop respectively abut against the inner wall of the placing groove.

Further preferably, the U-shaped water stop lip extends along the axis direction of the U-shaped water stop main body and is consistent with the axial length of the U-shaped water stop main body, one side, close to the U-shaped water stop main body, of the U-shaped water stop lip is a fixed end and is integrally connected with the U-shaped water stop main body, and one side, far away from the U-shaped water stop main body, of the U-shaped water stop lip is a free end.

Further preferably, the stagnant water briquetting compresses tightly the section and is used for compressing tightly the elasticity of U type stagnant water main part including the level that is used for compressing tightly horizontal stagnant water section and compressing tightly the section, the elasticity compresses tightly the section and includes at least two consecutive elasticity and compresses tightly the festival, elasticity compresses tightly the festival and is U-shaped or V-arrangement structure.

Further preferably, the elastic pressing section further comprises an elastic pressing sheet which is a semi-cylindrical surface structure formed below the elastic pressing section, and two sides of the elastic pressing sheet and the horizontal pressing section are integrally formed.

Further preferably, the extending direction of the elastic pressing section and the elastic pressing sheet is parallel to the axial direction of the U-shaped water stopping main body, and the axial length of the elastic pressing section and the axial length of the elastic pressing sheet are consistent with the axial length of the U-shaped water stopping main body.

Preferably, a preset washer for the embedded stud to pass through is preset in the horizontal compression section, and an accommodating hole is formed in the upper surface of the horizontal compression section corresponding to the position of the preset washer.

Further preferably, the bolt structure comprises an embedded stud embedded in concrete at the lower part of the placing groove, the embedded stud sequentially penetrates through a preset washer of the horizontal water stop section and the horizontal compression section and extends into the containing hole to be connected with the locking nut, and a rubber cap used for surrounding the locking nut is plugged in the containing hole in an interference mode.

Further preferably, the water stop pressing plate is a rubber pressing plate, and the water stop pressing plate covers the upper part of the water stop pressing plate and is tightly fixed with the water stop pressing plate and the pipe gallery section.

The utility model has the advantages and positive effects that:

1. the utility model discloses a research and development rubber waterstop is in the structure and the technology of the installation after the pipe gallery main part construction is accomplished, solved traditional rubber waterstop because the waterstop lower part concrete is difficult to vibrate closely, easy to take place to wind and ooze, influence the stagnant water effect, difficult to repair or change; the requirement on pasting construction is high, and the construction quality is not easy to guarantee; the water stop belt has uneven fastening force and uneven fastening surface, which affects the water stop effect.

2. The utility model discloses in, adopt the filler to fill closely knit through the concrete with the standing groove lower part, not only can realize making level locally, can also solve because of waterstop lower part concrete is difficult to the vibration closely knit, take place easily around the problem of oozing, solved the problem that preset bolt and lower part concrete lead to around oozing because of the quality defect who probably exists, improved the stagnant water effect greatly.

3. The utility model discloses in, the horizontal stagnant water section of rubber waterstop bonds on the standing groove horizontal surface, and in the U type stagnant water main part of rubber waterstop stretched into the expansion joint to the position that U type stagnant water main part and expansion joint contacted bonds each other, realizes the inseparable bonding between the fastening face of rubber waterstop and standing groove and the expansion joint.

4. The utility model discloses in, for further promotion U type stagnant water main part and expansion joint contact position's stagnant water effect, it has U type stagnant water lip limit to go back integrated into one piece in the both sides of U type stagnant water main part, after U type stagnant water main part stretched into the expansion joint in, U type stagnant water lip limit can further fill the clearance between U type stagnant water main part and the expansion joint position and bond with flexible adhesive linkage, further promotes the stagnant water effect.

5. The utility model discloses in, compress tightly the stagnant water briquetting in the non-fastening face top of rubber waterstop, the stagnant water briquetting, through bolted construction reciprocal anchorage between rubber waterstop and the piping lane section, the part that the stagnant water briquetting corresponds U type stagnant water section top is equipped with the elasticity that is used for compressing tightly U type stagnant water section and absorption seam displacement and compresses tightly the section, the section compresses tightly U type stagnant water section downwards in one side elasticity, prevent that it from taking place ascending position and influencing the stagnant water effect, on the other hand, have certain elasticity with the help of it, can absorb certain seam displacement, through absorbing the seam displacement and be unlikely to produce great stress and influence the stagnant water effect in rubber waterstop, the on-way stagnant water ability of waterstop has been improved greatly.

6. The utility model discloses in, adopt the stagnant water clamp plate to paste on stagnant water briquetting surface, can prevent that the foreign matter from falling into the seam, played fine protection and anti-aging effect to the rubber waterstop, and adopt the fixed rubber waterstop of bolt structure, change easily, repair easily after the damage, prolonged the life of waterstop greatly.

7. The utility model discloses in, the rubber block interference is plugged in and is held in the hole site, and later the upper end of rubber block is pasted with the rubber clamp plate and is bonded in an organic whole, realizes water-proof effects, simple structure, convenient operation through the mode that the interference is connected and bonds.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a first schematic structural diagram of embodiment 1;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a half-sectional view of FIG. 1;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is the second schematic structural view of embodiment 1;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic diagram of the rubber water stop of FIG. 6;

FIG. 8 is a schematic view of the stop water hydraulic block of FIG. 6;

FIG. 9 is a half-sectional view of FIG. 5;

FIG. 10 is a first schematic structural view of embodiment 2;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is a half sectional view of FIG. 10;

FIG. 13 is a front view of FIG. 12;

FIG. 14 is a second schematic structural view of example 2;

FIG. 15 is an exploded view of FIG. 14;

fig. 16 is a half sectional view of fig. 14.

In the figure: 1-expansion joint; 2-pipe gallery section; 3-placing the groove; 4-rubber waterstops; 401-horizontal water stop section; 402-U type stagnant water main part; a 403-U shaped water stop lip; 5-flexible adhesive layer; 6-water stopping and briquetting; 601-a horizontal compacting section; 602-elastic compression joint; 603-elastic pressing pieces; 7-water stop pressing plate; 8-presetting a gasket; 9-accommodating hole positions; 10-embedding studs; 11-a lock nut; 12-rubber cap.

Detailed Description

First, it should be noted that the specific structure, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are only for illustrative purposes and should not be construed as forming any limitation on the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances. The present invention will be described in detail with reference to the accompanying drawings.

Example 1:

a rubber waterstop for an expansion joint of a cast-in-place pipe gallery is used as a waterstop structure, and the rubber waterstop 4 is arranged at the expansion joint 1 of a concrete pipe gallery; wherein: the concrete pipe gallery comprises two pipe gallery sections 2 with an expansion joint 1 formed between the two pipe gallery sections, the upper ends of the two pipe gallery sections 2 close to each other are provided with a placing groove 3, and concrete at the lower part of the placing groove 3 is densely filled with a filling agent; the rubber water stop 4 comprises a horizontal water stop section 401 laid above the placing groove 3 and a U-shaped water stop section extending into the expansion joint 1, the U-shaped water stop section comprises a U-shaped water stop main body 402 and U-shaped water stop lips 403 respectively formed on two sides of the U-shaped water stop main body 402, and the U-shaped water stop main body 402 and the horizontal water stop section 401 are integrally formed; be equipped with flexible bonding layer 5 between rubber waterstop 4 and standing groove 3, the expansion joint 1, the top of rubber waterstop 4 is equipped with stagnant water briquetting 6 and stagnant water clamp plate 7 in proper order, the part that stagnant water briquetting 6 corresponds U type stagnant water section top is equipped with the elasticity that is used for compressing tightly U type stagnant water section and absorption joint displacement and compresses tightly the section, through bolted construction reciprocal anchorage between stagnant water briquetting 6, rubber waterstop 4 and piping lane section 2.

In this embodiment, as shown in fig. 1 to 9, by taking a partial view of the rubber waterstop in an assembled state with the concrete pipe gallery as an example, during construction, two points need to be specially noticed, on one hand, leveling is locally uneven, and on the other hand, adhesion of the rubber waterstop between a non-fastening surface and a waterstop pressure plate is enhanced, so that the problem that the waterstop affects a waterstop effect due to uneven fastening force and uneven fastening surface is solved. Specifically, the method comprises the following steps:

firstly, the concrete at the lower part of the placing groove 3 is densely filled with the filling agent, so that not only can local leveling be realized, but also the problem that the seepage is easy to occur due to the fact that the concrete at the lower part of the water stop belt is difficult to vibrate and compact is solved, the problem that the seepage is caused due to the possible quality defects of the bolt and the concrete at the lower part of the bolt is pre-treated is solved, and the water stopping effect is greatly improved;

then, a flexible bonding layer 5 is adhered to the outer surfaces of the placing groove 3 and the expansion joint 1 and used for being bonded with a fastening surface of a rubber water stop, a horizontal water stop section 401 of the rubber water stop is bonded to a horizontal surface of the placing groove 3, a U-shaped water stop main body 402 of the rubber water stop extends into the expansion joint 1, the parts, contacted with the expansion joint 1, of the U-shaped water stop main body 402 are bonded with each other, in order to further improve the water stop effect of the contact position of the U-shaped water stop main body 402 and the expansion joint 1, U-shaped water stop lip edges 403 are further integrally formed on two sides of the U-shaped water stop main body 402, and after the U-shaped water stop main body 402 extends into the expansion joint 1, the U-shaped water stop lip edges 403 can further fill the gap between the joint parts of the U-shaped water stop main body 402 and the expansion joint 1, and further improve the water stop effect;

then, the water stop pressing block 6 is pressed above a non-fastening surface of the rubber water stop belt 4, the water stop pressing block 6, the rubber water stop belt 4 and the pipe gallery section 2 are fixed with each other through a bolt structure, an elastic pressing section for pressing the U-shaped water stop section and absorbing joint displacement is arranged on the part of the water stop pressing block 6 corresponding to the upper part of the U-shaped water stop section, the U-shaped water stop section is pressed downwards by the elastic pressing section on one hand, the water stop effect is prevented from being influenced by the upward position of the U-shaped water stop section, on the other hand, certain joint displacement can be absorbed by the aid of certain flexibility, the water stop effect cannot be influenced by large stress generated in the rubber water stop belt by absorbing the joint displacement, and the on-way water stop capability of the water stop belt is greatly improved;

and finally, the water stop pressing plate 7 is adhered to the surface of the water stop pressing block 6, so that foreign matters can be prevented from falling into a seam, the rubber water stop belt is well protected and anti-aging, the rubber water stop belt is fixed by adopting a bolt structure, the rubber water stop belt is easy to replace and repair after being damaged, and the service life of the water stop belt is greatly prolonged.

According to the technical scheme, by researching and developing a structure and a process for installing the rubber waterstop after the construction of the pipe gallery main body is completed, the problems that the traditional rubber waterstop is difficult to repair or replace because the concrete at the lower part of the waterstop is difficult to vibrate and compact, the water-stopping effect is easily affected due to the fact that the winding seepage is easy to occur are solved; the requirement on pasting construction is high, and the construction quality is not easy to guarantee; the water stop belt has uneven fastening force and uneven fastening surface, which affects the water stop effect.

It should be noted that: in order to further improve the bonding stability between the U-shaped water stop main body 402 and the expansion joint 1, an inflatable bag with a shape matched with the U-shaped water stop main body 402 can be placed in the U-shaped water stop main body 402, external force is applied to the U-shaped water stop main body 402 through inflation of the inflatable bag, so that the outer side of the U-shaped water stop main body 402 is tightly bonded with the expansion joint 1, and the inflatable bag can be taken out after the operation is completed, so that the operation is convenient.

Furthermore, it can be considered in this embodiment that the concrete at the lower part of the placing groove 3 is densely filled by adopting a modified epoxy mortar repairing or glue injecting manner, and the flexible adhesive layer 5 is disposed on the outer surface of the placing groove 3 and the outer surface of the expansion joint 1. Concrete at the lower part of the placing groove 3 is compactly filled by adopting a modified epoxy mortar repairing or glue injecting mode, so that the problem of seepage caused by the quality defect possibly existing in the pretreated stud and the concrete at the lower part of the stud is solved, and the water stopping effect is greatly improved.

Furthermore, it can be considered in this embodiment that the water stop pressing block 6 presses the rubber water stop 4 against the flexible adhesive layer 5, and the outer edges of the water stop pressing block 6 and the rubber water stop 4 respectively abut against the inner wall of the placing groove 3.

Furthermore, it can be considered in this embodiment that the U-shaped water stop lip 403 extends along the axial direction of the U-shaped water stop main body 402 and has the same axial length as the U-shaped water stop main body 402, one side of the U-shaped water stop lip 403 close to the U-shaped water stop main body 402 is a fixed end integrally connected with the U-shaped water stop main body 402, and one side away from the U-shaped water stop main body 402 is a free end, and after the U-shaped water stop main body 402 extends into the expansion joint 1, the U-shaped water stop lip 403 is a free end and can further fill a gap between the joint of the U-shaped water stop main body 402 and the expansion joint 1, thereby further improving the water stop effect.

Furthermore, it can be considered in this embodiment that the water stop pressing block 6 includes a horizontal pressing section 601 for pressing the horizontal water stop section 401 and an elastic pressing section for pressing the U-shaped water stop main body 402, the elastic pressing section includes at least two elastic pressing sections 602 connected in sequence, and the elastic pressing sections 602 are U-shaped or V-shaped structures. On the one hand, the elastic pressing section 602 compresses the U-shaped water stopping section downwards to prevent the U-shaped water stopping section from being influenced by the upward position, on the other hand, the elastic pressing section 602 has certain flexibility to absorb certain joint displacement, the joint displacement is absorbed to prevent the U-shaped water stopping section from being influenced by the large stress generated in the rubber water stopping belt, and the on-way water stopping capacity of the water stopping belt is greatly improved.

Example 2:

the elastic pressing section further comprises an elastic pressing piece 603 which is a semi-cylindrical surface structure formed below the elastic pressing section 602, and two sides of the elastic pressing piece 603 and the horizontal pressing section 601 are integrally formed. In this embodiment, as shown in fig. 10 to 16, by taking a partial view of the assembled state of the rubber waterstop and the concrete pipe gallery as an example, during assembly, the elastic pressing section 602 is pressed above the elastic pressing piece 603, the elastic pressing piece 603 is pressed above the U-shaped water stop main body 402, the elastic pressing piece 603 is used for absorbing the pressure from the elastic pressing section 602 and transmitting the pressure to the U-shaped water stop main body 402 below, so that the pressing stability of the elastic pressing section 602 is further improved, the abrasion of the elastic pressing section 602 can be reduced, and the elastic pressing section 602 of the half-cylindrical surface structure does not affect the overall flexibility of the elastic pressing section.

Furthermore, it can be considered in this embodiment that the extending direction of the elastic pressing section 602 and the elastic pressing piece 603 is parallel to the axial direction of the U-shaped water stop main body 402, and the axial length of the elastic pressing section 602 and the elastic pressing piece 603 is the same as the axial length of the U-shaped water stop main body 402.

Furthermore, it can be considered in embodiment 1 or 2 that a preset washer 8 for the embedded stud 10 to pass through is preset in the horizontal compression section 601, an accommodating hole 9 is formed in a position, corresponding to the preset washer 8, of the upper surface of the horizontal compression section 601, and the preset washer 8 is embedded in the horizontal compression section 601, which is beneficial to improving the stability of connection between the horizontal compression section 601 and the embedded bolt.

Further, still can consider in embodiment 1 or 2, the bolt structure includes pre-buried double-screw bolt 10 of pre-buried in the concrete of standing groove 3 lower part, pre-buried double-screw bolt 10 passes level stagnant water section 401, level and compresses tightly the predetermined packing ring 8 of section 601 in proper order and stretches into and hold in the hole site 9 and link to each other with lock nut 11, the interference is filled in and is used for surrounding lock nut 11's rubber block 12 in holding the hole site 9, the outside of rubber block 12 with hold hole site 9 zonulae occludens, the inboard is used for wrapping up lock nut 11, rubber block 12 can improve the waterproof performance in the clearance between level and compress tightly section 601 and the pre-buried double-screw bolt, rubber block 12 fills in and holds the hole site 9 in the upper end of back rubber block 12 and paste with the rubber clamp plate and bond in an organic whole, realizes waterproof function through interference connection and the mode that bonds.

Furthermore, it is also considered in embodiment 1 or 2 that the water-stop pressing plate 7 is a rubber pressing plate or a steel pressing plate, and the water-stop pressing plate 7 covers the water-stop pressing plate 6 and is tightly fixed to the water-stop pressing plate 7 and the pipe gallery section 2. After above-mentioned rubber waterstop, stagnant water clamp plate installation were accomplished, adopt rubber clamp plate to paste on 2 surfaces in stagnant water clamp plate and piping lane section at last, can prevent that the foreign matter from falling into the seam, played fine protection and anti-aging effect to the waterstop, wherein paste and can but not be restricted to and adopt to glue steel type building structure and glue, can also adopt further fixed such as anchoring piece in addition.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.

Claims (10)

1. The utility model provides a cast-in-place piping lane expansion joint rubber waterstop which characterized in that: the rubber waterstop is arranged at the expansion joint of the concrete pipe gallery;

wherein: the concrete pipe gallery comprises two pipe gallery sections with expansion joints formed between the two pipe gallery sections, the upper ends of the two pipe gallery sections close to each other are provided with placing grooves, and concrete at the lower parts of the placing grooves is densely filled with filling agents;

the rubber water stop belt comprises a horizontal water stop section laid above the placing groove and a U-shaped water stop section extending into the expansion joint, the U-shaped water stop section comprises a U-shaped water stop main body and U-shaped water stop lip edges respectively formed on two sides of the U-shaped water stop main body, and the U-shaped water stop main body and the horizontal water stop section are integrally formed;

be equipped with flexible adhesive linkage between rubber waterstop and standing groove, the expansion joint, rubber waterstop's top is equipped with stagnant water briquetting and stagnant water clamp plate in proper order, the part that the stagnant water briquetting corresponds U type stagnant water section top is equipped with the elasticity that is used for compressing tightly U type stagnant water section and absorbs the seam displacement and compresses tightly the section, through bolted construction reciprocal anchorage between stagnant water briquetting, rubber waterstop and the piping lane section.

2. The cast-in-place pipe gallery expansion joint rubber waterstop according to claim 1, characterized in that: concrete of standing groove lower part adopts modified epoxy mortar to repair or the mode of injecting glue to fill closely, flexible adhesive linkage sets up the surface at the surface of standing groove and the surface at the expansion joint.

3. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 2, characterized in that: the water stop pressing block compresses the rubber water stop belt on the flexible bonding layer, and the outer edges of the water stop pressing block and the rubber water stop belt are respectively abutted to the inner wall of the placing groove.

4. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 3, characterized in that: u type stagnant water lip edge U type stagnant water main part's axis direction extends and unanimous with the axial length of U type stagnant water main part, one side that U type stagnant water lip edge is close to U type stagnant water main part is stiff end and U type stagnant water main part body coupling, and one side of keeping away from U type stagnant water main part is the free end.

5. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 3, characterized in that: the stagnant water briquetting compresses tightly the section and is used for compressing tightly the elasticity of U type stagnant water main part including the level that is used for compressing tightly horizontal stagnant water section and compressing tightly the section, elasticity compresses tightly the section and includes two at least consecutive elasticity and compresses tightly the festival, elasticity compresses tightly the festival and is U-shaped or V-arrangement structure.

6. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 5, characterized in that: the elastic pressing section further comprises an elastic pressing piece which is a semi-cylindrical surface structure formed below the elastic pressing section, and two sides of the elastic pressing piece and the horizontal pressing section are integrally formed.

7. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 6, characterized in that: the extension direction of the elastic pressing joint and the elastic pressing sheet is parallel to the axis direction of the U-shaped water stopping main body, and the axial length of the elastic pressing joint and the axial length of the elastic pressing sheet are consistent with the axial length of the U-shaped water stopping main body.

8. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 5 or 6, characterized in that: the horizontal compression section is internally pre-provided with a pre-arranged gasket for the pre-embedded stud to pass through, and the upper surface of the horizontal compression section is provided with an accommodating hole position corresponding to the position of the pre-arranged gasket.

9. The cast-in-place pipe gallery expansion joint rubber waterstop according to claim 8, characterized in that: the bolt structure comprises an embedded stud embedded in concrete at the lower part of the placing groove, the embedded stud sequentially penetrates through a preset washer of the horizontal water stop section and the horizontal compression section and stretches into the containing hole to be connected with the locking nut, and a rubber cap used for surrounding the locking nut is plugged in the containing hole in an interference mode.

10. The cast-in-place pipe gallery expansion joint rubber waterstop of claim 9, characterized in that: the water stop pressing plate is a rubber pressing plate, and the water stop pressing plate covers the water stop pressing plate and is tightly fixed with the water stop pressing plate and the pipe gallery section.

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