Waterproof structure of building expansion joint
By installing a dual waterproofing mechanism in building expansion joints, including upper and lower waterproofing components, combined with a waterproofing frame and polyurea grouting layer, the problem of poor waterproofing performance in existing technologies is solved, achieving better waterproofing effect and seepage drainage, and improving the waterproofing performance and durability of building expansion joints.
Patent Information
- Application Number
- CN202520311192.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing building expansion joints have a simple waterproofing structure and poor waterproofing performance, which easily leads to water leakage.
It adopts a dual waterproofing mechanism, including an upper waterproofing component and a lower waterproofing component, combined with a waterproof frame, a waterproof cover plate and a polyurea grouting layer. Through structural designs such as arc-shaped grooves, arc-shaped blocks, waterproof foaming layers and drainage grooves, it achieves a dual waterproofing effect.
It improves the waterproofing of building expansion joints, reduces the impact of climate and temperature changes on the joints, effectively drains seepage, and enhances the long-term reliability and durability of the waterproofing layer.
Smart Images
Figure CN223907693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building expansion joint waterproof, specifically a kind of waterproof structure of building expansion joint. BACKGROUND
[0002] Building expansion joint is to reduce the possibility of structure crack or damage caused by thermal expansion and contraction of building component due to climate temperature change, and is set along the appropriate part of building or construction joint direction of construction joint, expansion joint is to divide wall, floor, roof and the like into two independent parts, so that building or construction can be horizontally stretched along the length direction.
[0003] In building structure, waterproof structure needs to be set in the corresponding position of building structure expansion joint, generally, double-component polyurethane sealing paste is added in building structure expansion joint to prevent water leakage and seepage, but the waterproof structure of such expansion joint is single, and the waterproof performance is poor, water is easily seeped to the joint gap, therefore, a kind of waterproof structure of building expansion joint is provided for the above problems. UTILITY MODEL CONTENTS
[0004] In order to make up for the deficiency of prior art, solve at least one technical problem proposed in the background art, the utility model provides a kind of waterproof structure of building expansion joint.
[0005] The utility model solves the technical scheme that the utility model discloses a kind of waterproof structure of building expansion joint, including building body;The number of the building body is two, two the building body is parallelly arranged, and expansion joint main body is formed between two the building body;
[0006] The building body is provided with embedding groove in the upper portion;
[0007] Waterproof mechanism is provided on the expansion joint main body;The waterproof mechanism includes upper waterproof subassembly and lower waterproof subassembly;
[0008] The upper waterproof subassembly includes upper groove body and lower groove body, the upper waterproof component is arranged on the upper groove body, the lower waterproof component is arranged on the lower groove body, waterproof frame is arranged on the upper portion of the expansion joint main body, waterproof cover plate is arranged on the upper portion of the waterproof frame;
[0009] The lower waterproof subassembly includes bottom support plate arranged on the lower portion of the expansion joint main body, anti-seepage layer is arranged on the upper portion of the bottom support plate, and polyurea grouting layer is filled and arranged on the upper portion of the anti-seepage layer.
[0010] Preferably, the lower portion of the upper waterproof component is provided with arc-shaped groove, the upper portion of the lower waterproof component is provided with arc-shaped block, and the arc-shaped groove is matched with the arc-shaped block.
[0011] Preferably, waterproof foam layers are provided on both sides of the upper waterproof component and the lower waterproof component.
[0012] Preferably, the upper two sides of the waterproof frame are provided with side plates, and the corresponding side plates are installed in the groove by fasteners. A set of sealing grooves are opened in parallel on the side plates. The lower part of the waterproof frame is provided with an insert, and multiple arc-shaped drainage grooves are evenly opened above the lower part of the waterproof frame.
[0013] Preferably, a support block is provided below the waterproof cover plate, the support block is disposed in the waterproof frame, and sealing strips are respectively provided on both sides below the waterproof cover plate, with the corresponding sealing strips disposed in the sealing groove.
[0014] Preferably, water guide strips are provided on both sides of the waterproof cover.
[0015] The beneficial effects of this utility model are:
[0016] This utility model provides a waterproof structure for building expansion joints. By setting an upper waterproof component and a lower waterproof component on the waterproof mechanism, a dual waterproofing effect is achieved on the main body of the expansion joint.
[0017] This utility model provides a waterproof structure for building expansion joints. Through the structural design of the upper waterproof component, the upper and lower waterproof components can waterproof the main body of the expansion joint. The arc-shaped block in the arc-shaped groove allows the lower waterproof component to support the upper waterproof component, thereby reducing the effect of climate temperature changes on crack compression. Waterproof foam layers are provided on both sides of the upper and lower waterproof components. The waterproof foam layers have a certain deformation capacity and waterproof performance. Through the structural design of the waterproof frame, in conjunction with the use of the waterproof cover plate, the waterproofness of the building expansion joint is improved. Multiple arc-shaped drainage grooves are evenly opened on the upper part of the lower part of the waterproof frame, which facilitates the drainage of seepage through the arc-shaped drainage grooves. The water guide strips on both sides of the waterproof cover plate drain the liquid flowing down the waterproof cover plate, preventing the liquid from seeping into the main body of the expansion joint.
[0018] This utility model provides a waterproof structure for building expansion joints. Through the structural arrangement of the lower waterproof component, the lower part of the expansion joint body can be waterproofed. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0020] In the attached diagram:
[0021] Figure 1is the perspective view of the utility model;
[0022] Figure 2 is Figure 1 is the enlarged view of A in figure;
[0023] Figure 3 is the structural schematic view of waterproof cover plate;
[0024] Figure 4 is Figure 3 is the enlarged view of B in figure;
[0025] Figure 5 is the structural schematic view of waterproof frame.
[0026] Legend:
[0027] 1, building body;2, expansion joint main body;3, embedded groove;4, upper groove body;5, lower groove body;6, upper waterproof part;7, lower waterproof part;8, waterproof frame;9, waterproof cover plate;10, bottom support plate;11, impermeable layer;12, polyurea grouting layer;13, arc-shaped groove;14, arc-shaped block;15, waterproof foaming layer;16, side plate;17, sealing groove;18, embedded block;19, arc-shaped drainage groove;20, support plug;21, sealing strip;22, water guide strip. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0029] The specific embodiments are given below.
[0030] Please refer to Figures 1-5 The utility model provides a kind of waterproof structure of building expansion joint, including building body 1;The number of building body 1 is two, two building body 1 is arranged in parallel, expansion joint main body 2 is formed between two building body 1;Expansion joint main body 2 is to reduce the possibility that structure is cracked or damaged due to thermal expansion and cold contraction of building component caused by climate temperature change and is set to the proper position along the construction joint direction of building or structure construction joint.
[0031] The upper portion of building body 1 is provided with embedded groove 3;With waterproof frame 8 is installed and handled.
[0032] Expansion joint main body 2 is provided with waterproof mechanism;Waterproof mechanism includes upper waterproof assembly and lower waterproof assembly;The waterproof effect of building expansion joint is improved by the structure of waterproof mechanism.
[0033] The upper waterproof assembly includes an upper groove 4 and a lower groove 5 formed in the upper part of the expansion joint body 2, an upper waterproof part 6 arranged on the upper groove 4, a lower waterproof part 7 arranged on the lower groove 5, a waterproof frame 8 arranged above the expansion joint body 2, and a waterproof cover plate 9 arranged above the waterproof frame 8;
[0034] The lower waterproof assembly includes a bottom support plate 10 arranged on the lower part of the expansion joint body 2, a waterproof layer 11 arranged above the bottom support plate 10, and a polyurea grouting layer 12 filled on the waterproof layer 11;
[0035] The upper waterproof assembly and the lower waterproof assembly arranged on the waterproof mechanism achieve the effect of waterproofing the expansion joint body 2.
[0036] Further, as shown in Figure 1 and Figure 2 , the lower part of the upper waterproof part 6 is provided with an arc-shaped groove 13, the upper part of the lower waterproof part 7 is provided with an arc-shaped block 14, the arc-shaped groove 13 is matched with the arc-shaped block 14, the upper waterproof part 6 and the lower waterproof part 7 can waterproof the expansion joint body 2, and the arc-shaped block 14 is in the arc-shaped groove 13, so that the lower waterproof part 7 can support the upper waterproof part 6, thereby reducing the effect of the climate temperature change on the extrusion of the crack.
[0037] Further, as shown in Figure 1 and Figure 2 , waterproof foaming layers 15 are arranged on both sides of the upper waterproof part 6 and the lower waterproof part 7, the waterproof foaming layers 15 have a certain deformation ability and also have a certain waterproof performance.
[0038] Further, as shown in Figure 1 and Figure 5 , the waterproof frame 8 is made of stainless steel, side plates 16 are arranged on both sides of the upper part of the waterproof frame 8, the corresponding side plates 16 are installed in the embedded groove 3 through fasteners, a group of sealing grooves 17 are parallelly formed on the side plates 16, an embedded block 18 is arranged on the lower part of the waterproof frame 8, the embedded block 18 reduces the extrusion of the climate temperature change on the waterproof frame 8, a plurality of arc-shaped drainage grooves 19 are uniformly arranged on the lower part of the waterproof frame 8, which is conducive to draining the seepage through the arc-shaped drainage grooves 19.
[0039] Further, as shown in Figure 1 and Figure 3 , a support plug 20 is arranged below the waterproof cover plate 9, the support plug 20 is arranged in the waterproof frame 8, sealing strips 21 are arranged on both sides of the lower part of the waterproof cover plate 9, the corresponding sealing strips 21 are arranged in the sealing grooves 17, the waterproof cover plate 9 is installed above the waterproof frame 8, the sealing strips 21 are arranged in the sealing grooves 17, and the waterproof performance of the building expansion joint is improved.
[0040] Further, as shown in Figure 3 and Figure 4 The two sides of the waterproof cover plate 9 are provided with water guide strips 22, which are used to drain the liquid flowing down the waterproof cover plate 9 and prevent the liquid from seeping into the expansion joint body 2.
[0041] In operation, the upper waterproof assembly and the lower waterproof assembly arranged on the waterproof mechanism can achieve the effect of double waterproofing of the expansion joint body 2.
[0042] The upper waterproof member 6 and the lower waterproof member 7 can perform waterproofing treatment on the expansion joint body 2 through the structural arrangement of the upper waterproof assembly. The arc-shaped block 14 is in the arc-shaped groove 13, so that the lower waterproof member 7 can support the upper waterproof member 6, thereby reducing the effect of the temperature change on the expansion joint body 2. The upper waterproof member 6 and the lower waterproof member 7 are provided with waterproof foam layers 15 on the two sides, which have certain deformation ability and certain waterproof performance.
[0043] The waterproof cover plate 9 is installed above the waterproof frame 8, so that the sealing strip 21 is arranged in the sealing groove 17, thereby improving the waterproof performance of the expansion joint. The lower part of the waterproof frame 8 is uniformly provided with a plurality of arc-shaped drainage grooves 19, which are beneficial to drain the seepage liquid. The water guide strips 22 on the two sides of the waterproof cover plate 9 drain the liquid flowing down the waterproof cover plate 9 and prevent the liquid from seeping into the expansion joint body 2.
[0044] The bottom support plate 10 is provided with a waterproof layer 11, and the waterproof layer 11 is filled with a polyurea grouting layer 12. The polyurea grouting layer 12 is a firm, waterproof, and corrosion-resistant coating formed by the solidification of polyurea grouting liquid. After solidification, the volume is stable and there is no shrinkage phenomenon, which ensures the long-term reliability of the waterproof layer and can resist the corrosion of acid, alkali, salt, and other chemicals. At the same time, it has the characteristics of anti-ultraviolet and aging resistance, and can be used stably in various harsh environments for a long time.
[0045] The basic principles, main features, and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.
Claims
1. A waterproof structure of a building expansion joint, comprising a building body (1); characterized in that: The number of the building bodies (1) is two, the two building bodies (1) are arranged in parallel, and a main expansion joint body (2) is formed between the two building bodies (1); An embedding groove (3) is formed above the building body (1); The main expansion joint body (2) is provided with a waterproof mechanism; the waterproof mechanism comprises an upper waterproof assembly and a lower waterproof assembly; The upper waterproof assembly comprises an upper groove body (4) and a lower groove body (5) formed in the upper part of the main expansion joint body (2), an upper waterproof part (6) arranged on the upper groove body (4), and a lower waterproof part (7) arranged on the lower groove body (5); a waterproof frame (8) is arranged above the main expansion joint body (2); and a waterproof cover plate (9) is arranged above the waterproof frame (8). The lower waterproof assembly comprises a bottom supporting plate (10) arranged in the lower part of the main expansion joint body (2); a seepage prevention layer (11) is arranged above the bottom supporting plate (10); and a polyurea grouting layer (12) is filled in the seepage prevention layer (11).
2. The waterproof structure of an expansion joint of a building according to claim 1, wherein: An arc-shaped groove (13) is formed in the lower part of the upper waterproof part (6); an arc-shaped block (14) is arranged on the upper part of the lower waterproof part (7); and the arc-shaped groove (13) is matched with the arc-shaped block (14).
3. The waterproof structure of an expansion joint of a building according to claim 2, wherein: Waterproof foaming layers (15) are arranged on the two sides of the upper waterproof part (6) and the lower waterproof part (7).
4. The waterproof structure of an expansion joint of a building according to claim 1, wherein: Side plates (16) are arranged on the upper two sides of the waterproof frame (8); the side plates (16) are installed in the embedding groove (3) through fasteners; a group of sealing grooves (17) are formed in parallel on the side plates (16); an embedding block (18) is arranged on the lower part of the waterproof frame (8); and a plurality of arc-shaped liquid discharge grooves (19) are evenly formed on the upper part of the lower part of the waterproof frame (8).
5. The waterproof structure of an expansion joint of a building according to claim 4, wherein: A supporting plug (20) is arranged below the waterproof cover plate (9); the supporting plug (20) is arranged in the waterproof frame (8); sealing strips (21) are arranged on the two sides of the waterproof cover plate (9); and the sealing strips (21) are arranged in the sealing grooves (17).
6. The waterproof structure of an expansion joint of a building according to claim 1, wherein: Water guide strips (22) are arranged on the two sides of the waterproof cover plate (9).