A type of waterproof retaining wall expansion joint

Abstract

This utility model relates to a waterproof retaining wall expansion joint, belonging to the technical field of expansion joints. The waterproof retaining wall expansion joint includes: a wall reinforcing keel, with expansion joint reinforcing keels arranged between the wall reinforcing keels; a multi-layered waterproof mechanism reinforcing keel; an upper water-blocking plate reinforcing keel fixed to the top of the wall reinforcing keel by fixing bolts; the upper water-blocking plate reinforcing keel and the telescopic plate reinforcing keel working together to block water initially; a pre-embedded water-stop reinforcing keel embedded between the wall reinforcing keels to provide secondary water blocking, improving the waterproof effect; and a connecting pipe reinforcing keel at the bottom of the pre-embedded water-stop reinforcing keel, through which water is guided into the water-conducting pipe reinforcing keel and into the drainage ditch, preventing cracking under water pressure and guiding water flow, thus improving the waterproof effect of the expansion joint reinforcing keel.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and in particular to a waterproof retaining wall expansion joint. Background Technology

[0002] Expansion joints are located between two adjacent buildings (for example, the gap between the main building and the podium forms an expansion joint). Expansion joints are a general term for expansion joints, settlement joints, and seismic joints. Buildings often deform under external forces, leading to cracking or even damage; expansion joints are structural joints designed to address this. Waterproofing structures must be installed within expansion joints.

[0003] Existing retaining wall expansion joints mostly use a single waterstop (such as a rubber waterstop) or fill with materials such as asphalt. Waterstops are prone to waterproofing failure due to material aging, construction errors, or structural deformation; traditional filling materials (such as asphalt) are prone to cracking and peeling under long-term water pressure. Utility Model Content

[0004] Therefore, it is necessary to provide a waterproof retaining wall expansion joint to address the problems of waterproofing failure caused by material aging, construction errors, or structural deformation, and the tendency to crack and peel under long-term water pressure.

[0005] A waterproof retaining wall expansion joint includes: a wall reinforcing keel, an expansion joint reinforcing keel disposed between the wall reinforcing keels, and a waterproof layer reinforced keel coated on the surface of the wall reinforcing keel; multiple layers of waterproof mechanism reinforcing keels disposed on the wall reinforcing keels for waterproofing the expansion joint reinforcing keel and preventing water from seeping out through the expansion joint reinforcing keel; and a guide mechanism reinforcing keel disposed inside the expansion joint reinforcing keel for guiding water entering the expansion joint reinforcing keel.

[0006] In one embodiment, the multi-layer waterproofing mechanism reinforced keel includes an upper water-retaining plate reinforced keel fixedly connected to the surface of the wall reinforced keel, and a telescopic plate reinforced keel is provided at the center of the upper water-retaining plate reinforced keel. The upper water-retaining plate reinforced keel is fixedly connected to the wall reinforced keel by fixing bolts.

[0007] In one embodiment, the multi-layer waterproof mechanism reinforcing keel also includes an installation plate reinforcing keel fixedly connected to the wall reinforcing keel. The surface of the installation plate reinforcing keel has an installation groove reinforcing keel, and a rubber strip reinforcing keel is snapped into the installation groove reinforcing keel.

[0008] In one embodiment, the rubber strip reinforcing keel has a sloping reinforcing keel on the side near the fixing bolt reinforcing keel, and the top of the rubber strip reinforcing keel is fitted to the bottom of the upper baffle reinforcing keel.

[0009] In one embodiment, the guide mechanism reinforcing keel includes a pre-embedded waterstop reinforcing keel fixedly connected to the middle position of the two wall reinforcing keels, and the vertical cross section of the pre-embedded waterstop reinforcing keel is arranged in an Ω shape.

[0010] In one embodiment, the bottom of the pre-embedded waterstop reinforcing keel is provided with a water guide hole reinforcing keel, the bottom of the water guide hole reinforcing keel is fixedly connected to a connecting pipe reinforcing keel, the bottom of the connecting pipe reinforcing keel is fixedly connected to a water guide pipe reinforcing keel, and the water guide pipe reinforcing keel is set inside the expansion joint reinforcing keel and is connected to the drainage ditch.

[0011] In one embodiment, multiple reinforcing keels are evenly distributed on the lower part of the surface of the pre-embedded waterstop reinforcing keel.

[0012] In one embodiment, the expansion joint reinforcing keel is filled with a highly elastic polyurethane foam strip located above the pre-embedded waterstop reinforcing keel.

[0013] Beneficial effects

[0014] A multi-layered waterproofing structure with reinforced keel is installed. The upper water-retaining plate reinforced keel is fixed to the top of the wall reinforced keel with fixing bolts. The upper water-retaining plate reinforced keel and the expansion plate reinforced keel work together to block water at the first stage. A pre-embedded waterstop reinforced keel is installed between the wall reinforced keels to block water at the second stage, improving the waterproofing effect. A connecting pipe reinforced keel is installed at the bottom of the pre-embedded waterstop reinforced keel to send water through the connecting pipe reinforced keel into the water guide reinforced keel and into the drainage ditch, preventing cracking under water pressure and guiding water flow to improve the waterproofing effect of the expansion joint reinforced keel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the multi-layer waterproof mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the water guide hole of this utility model;

[0019] Figure 4This is a schematic diagram of the guiding mechanism of this utility model.

[0020] Figure label:

[0021] 101. Wall; 102. Expansion joint; 103. Waterproof layer; 200. Multi-layer waterproofing mechanism; 201. Upper water-retaining plate; 202. Expansion plate; 203. Fixing bolt; 204. Mounting plate; 205. Mounting groove; 206. Rubber strip; 207. Sloping surface; 300. Guide mechanism; 301. Embedded waterstop; 302. Reinforcing keel; 303. Connecting pipe; 304. Water guide pipe; 305. Water guide hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0027] The following is combined Figures 1-4 This invention describes the waterproof retaining wall expansion joint.

[0028] In one embodiment, a waterproof retaining wall expansion joint includes: a wall 101, an expansion joint 102 between the walls 101, and a waterproof layer 103 coated on the surface of the wall 101; a multi-layer waterproof mechanism 200 is provided on the wall 101 to waterproof the expansion joint 102 and prevent water from seeping out through the expansion joint 102; and a guiding mechanism 300 is provided inside the expansion joint 102 to guide the water entering the expansion joint 102.

[0029] like Figure 1 and Figure 2 As shown, the multi-layer waterproofing mechanism 200 includes an upper water-retaining plate 201 fixedly connected to the surface of the wall 101. A telescopic plate 202 is centrally located on the upper water-retaining plate 201. The upper water-retaining plate 201 is fixedly connected to the wall 101 by fixing bolts 203. The multi-layer waterproofing mechanism 200 also includes an mounting plate 204 fixedly connected to the wall 101. An mounting groove 205 is formed on the surface of the mounting plate 204, and a rubber strip 206 is engaged within the mounting groove 205. An inclined surface 207 is formed on the side of the rubber strip 206 near the fixing bolts 203, and the top of the rubber strip 206 is fitted against the bottom of the upper water-retaining plate 201.

[0030] In this embodiment, the upper water-retaining plate 201 is fixed to the wall 101 by fixing bolts 203. The waterproof layer 103 blocks water from seeping into the wall 101. The upper water-retaining plate 201 also prevents water from entering the expansion joint 102. It works in conjunction with the expansion plate 202; when the expansion joint 102 deforms, the expansion plate 202 deforms along with it, preventing water from entering and providing a primary waterproofing effect. A rubber strip 206 is installed through the mounting groove 205. The rubber strip 206 and the bottom of the upper water-retaining plate 201 prevent water from flowing into the expansion joint 102 through the gap between the bottom of the upper water-retaining plate 201 and the wall 101. The rubber strip 206 is a EPDM rubber sealing strip.

[0031] The guiding mechanism 300 includes a pre-embedded waterstop 301 fixedly connected to the center of two walls 101. The pre-embedded waterstop 301 has an Ω-shaped vertical cross-section. A water guide hole 305 is provided at the bottom of the pre-embedded waterstop 301. A connecting pipe 303 is fixedly connected to the bottom of the water guide hole 305, and a water guide pipe 304 is fixedly connected to the bottom of the connecting pipe 303. The water guide pipe 304 is located within the expansion joint 102 and connects to the drainage ditch. Multiple reinforcing ribs 302 are evenly distributed on the lower part of the surface of the pre-embedded waterstop 301. A high-elasticity polyurethane foam strip is filled within the expansion joint 102 above the pre-embedded waterstop 301.

[0032] The embedded waterstop 301 has an Ω-shaped vertical cross-section. This facilitates expansion and contraction following the deformation of the expansion joint 102. The arc shape helps to concentrate infiltrated water at the bottom, which is then channeled through the water guide hole 305 and connecting pipe 303 into the water guide pipe 304, and finally discharged into the drainage ditch. This prevents water from accumulating at the bottom of the embedded waterstop 301 and affecting its deformation. A reinforcing keel 302 at the bottom of the embedded waterstop 301 assists in its deformation and enhances its tensile strength. The high-elasticity polyurethane foam strip has an elastic recovery rate of ≥90%, ensuring it can still rebound and seal the gap after multiple compression deformations. The closed-cell rate is ≥95%, reducing water absorption. It is resistant to environmental water erosion at pH 3-11, adapting to complex environments such as acid rain and groundwater, and its cross-section is trapezoidal or has a convex rib structure.

[0033] Working principle:

[0034] The pre-embedded waterstop 301 is embedded into the walls 101 on both sides of the expansion joint 102, with the arc-shaped part of the pre-embedded waterstop 301 facing downwards. The pre-embedded waterstop 301 serves to block water from entering the expansion joint 102. The upper water-blocking plate 201 is fixed to the wall 101 with fixing bolts 203. The upper water-blocking plate 201 also blocks water from entering the expansion joint 102. An expansion joint 202 is installed to expand and contract with the deformation of the expansion joint 102, improving the water-blocking effect. Rubber strips 206 are used to prevent water from flowing into the expansion joint 102 from the gap between the top of the wall 101 and the bottom of the upper water-blocking plate 201, further improving the water-blocking effect. A water guide pipe 304 and a connecting pipe 303 are installed to guide water from the bottom of the pre-embedded waterstop 301 through the water guide hole 305 into the drainage ditch, preventing water from accumulating at the bottom of the pre-embedded waterstop 301 and further improving the waterproofing effect.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A waterproof retaining wall deformation joint, characterized by, include: A wall (101) is provided with expansion joints (102) between the walls (101), and a waterproof layer (103) is applied to the surface of the wall (101); The wall (101) is provided with a multi-layer waterproof mechanism (200) for waterproofing the expansion joint (102) and preventing water from seeping out through the expansion joint (102); the expansion joint (102) is provided with a guide mechanism (300) for guiding the water entering the expansion joint (102).

2. The waterproof retaining wall deformation joint of claim 1, wherein, The multi-layer waterproofing mechanism (200) includes an upper water baffle (201) fixedly connected to the surface of the wall (101), and a telescopic plate (202) is provided in the center of the upper water baffle (201). The upper water baffle (201) is fixedly connected to the wall (101) by fixing bolts (203).

3. The waterproof retaining wall expansion joint according to claim 2, characterized in that, The multi-layer waterproofing mechanism (200) also includes an installation plate (204) fixedly connected to the wall (101). The surface of the installation plate (204) is provided with an installation groove (205), and a rubber strip (206) is snapped into the installation groove (205).

4. The waterproof retaining wall expansion joint according to claim 3, characterized in that, The rubber strip (206) has an inclined surface (207) on the side near the fixing bolt (203), and the top of the rubber strip (206) is fitted to the bottom of the upper baffle plate (201).

5. The waterproof retaining wall expansion joint according to claim 1, characterized in that, The guiding mechanism (300) includes a pre-embedded waterstop (301) fixedly connected to the center of the two walls (101), and the pre-embedded waterstop (301) has an Ω-shaped vertical cross section.

6. The waterproof retaining wall expansion joint according to claim 5, characterized in that, The pre-embedded waterstop (301) has a water guide hole (305) at the bottom. The bottom of the water guide hole (305) is fixedly connected to a connecting pipe (303). The bottom of the connecting pipe (303) is fixedly connected to a water guide pipe (304). The water guide pipe (304) is set in the expansion joint (102) and is connected to the drainage ditch.

7. The waterproof retaining wall expansion joint according to claim 6, characterized in that, Multiple reinforcing keels (302) are evenly distributed on the lower part of the surface of the pre-embedded waterstop (301).

8. The waterproof retaining wall expansion joint according to claim 7, characterized in that, The expansion joint (102) is filled with a high-elasticity polyurethane foam strip above the pre-embedded waterstop (301).

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