A waterproof structure of a deformation joint

CN224620842UActive Publication Date: 2026-08-11JIANGSU LONGTU PLASTIC IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]将防水带和防水盖板安装于两个混凝土结构之间,并通过螺栓对防水带和防水盖板进行固定,使得防水结构需要通过多组螺栓固定,而且需要使用工具对多组螺栓逐一进行固定,而且需要使用专门的工具控制螺栓的扭力,导致防水结构安装起来需要耗费大量的时间,导致防水结构安装起来较为麻烦,基于上述问题,本申请提出了一种变形缝防水结构

Benefits of technology

[0013] Compared with the prior art, the beneficial effects of this utility model are: the waterproof structure for expansion joints uses an installation structure to install the waterproof cover plate and fix its position, and uses a limiting and fixing component to fix the position of the waterproof strip. This eliminates the need for tools and multiple sets of bolts to fix the waterproof cover plate and waterproof strip, making the waterproof structure installation more convenient and avoiding the time-consuming process of tightening multiple sets of bolts. Furthermore, the absence of tools makes the waterproof cover plate and waterproof strip easier to disassemble.

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Abstract

This utility model discloses a waterproof structure for expansion joints, including concrete structures with expansion joints between them. A waterproof strip is installed inside the expansion joint, and the expansion joint overlaps with the concrete structure. A limiting groove is provided through the top of the waterproof strip. A waterproof cover plate is installed on the top of the concrete structure, and an installation component is provided between the bottom of the waterproof cover plate and the top of the concrete structure. The waterproof cover plate is installed and its position is fixed by the installation structure, and the position of the waterproof strip is fixed by the limiting and fixing component. This eliminates the need for tools and multiple sets of bolts to fix the waterproof cover plate and waterproof strip, making the waterproof structure installation more convenient and avoiding the time-consuming process of tightening multiple sets of bolts. Furthermore, the absence of tools makes the waterproof cover plate and waterproof strip easier to disassemble.
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Description

Technical Field

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

[0002] Expansion joints are a general term encompassing expansion joints, settlement joints, and seismic joints. Buildings often deform under external forces, leading to cracking and even damage. This is a common technical problem in the construction industry and a primary concern for users. However, during construction, leakage mainly occurs at structural changes, particularly at expansion joints. To address this, construction companies construct waterproof structures on roofs to prevent rainwater from flowing into the expansion joints. One common waterproof structure involves building walls on concrete piers on both sides of the expansion joint on the roof, filling the space between the walls with asphalt-impregnated hemp fiber, wrapping the outside of the walls with waterproof membrane, and installing flashing between the walls and the roof. A galvanized iron cover plate is then fixed to the top of the wall to conceal the expansion joint.

[0003] Installing waterproof strips and waterproof covers between two concrete structures and fixing them with bolts requires multiple sets of bolts for the waterproof structure. Furthermore, tools are needed to fix each set of bolts individually, and specialized tools are required to control the bolt torque. This makes the installation of the waterproof structure time-consuming and cumbersome. Based on these problems, this application proposes a waterproof structure for expansion joints. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a waterproof structure for expansion joints, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof structure for expansion joints includes concrete structures, expansion joints are provided between the concrete structures, a waterproof strip is provided inside the expansion joint, the expansion joint overlaps with the concrete structures, a limiting groove is provided through the top of the waterproof strip, a waterproof cover plate is provided on the top of the concrete structures, an installation component is provided between the bottom of the waterproof cover plate and the top of the concrete structures, and a limiting and fixing component is provided inside the waterproof cover plate to facilitate fixing the position of the limiting groove.

[0007] Preferably, the installation assembly includes an installation housing fixedly installed at the bottom of the waterproof cover plate, a limiting housing overlapping the surface of the installation housing, the limiting housing being fixedly installed at the top of the concrete structure, a rotating screw being rotatably installed inside the installation housing, an anti-slip knob being fixedly installed at the front end of the rotating screw, a threaded sleeve being threaded on the surface of the rotating screw, the threaded sleeve being slidably installed inside the installation housing, a hinge seat one being fixedly installed on both the left and right sides of the threaded sleeve, a flip plate being hingedly installed inside the hinge seat one, a hinge seat two being hingedly installed on the surface of the flip plate, and a fixing plate being fixedly installed on the side of the hinge seat two away from the threaded sleeve.

[0008] Preferably, the fixing plate has a rectangular structure, is made of metal, and is slidably disposed inside the mounting housing.

[0009] Preferably, the limiting and fixing assembly includes a movable plate overlapping the top of the waterproof cover plate, a sliding rod fixedly installed at the bottom of the movable plate, the sliding rod being slidably installed inside the waterproof cover plate, a lower pressure plate fixedly installed at the bottom end of the sliding rod, a spring connecting the top end of the lower pressure plate to the upper side wall of the waterproof cover plate, a limiting plate fixedly installed at the bottom of the lower pressure plate, and a connecting handle fixedly installed at the top of the movable plate.

[0010] Preferably, the transverse cross-sectional area of ​​the limiting plate is the same as the longitudinal cross-sectional area of ​​the limiting groove, and both the transverse cross-section of the limiting plate and the longitudinal cross-section of the limiting groove are rectangular.

[0011] Preferably, the top of the concrete structure is provided with an insertion groove, which is adapted to the limiting plate.

[0012] Preferably, there are two movable plates, which are symmetrically distributed and connected by a connecting handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the waterproof structure for expansion joints uses an installation structure to install the waterproof cover plate and fix its position, and uses a limiting and fixing component to fix the position of the waterproof strip. This eliminates the need for tools and multiple sets of bolts to fix the waterproof cover plate and waterproof strip, making the waterproof structure installation more convenient and avoiding the time-consuming process of tightening multiple sets of bolts. Furthermore, the absence of tools makes the waterproof cover plate and waterproof strip easier to disassemble. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the waterproof tape structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the outer casing of this utility model;

[0018] Figure 5 for Figure 4 Enlarged view of the structure at point A;

[0019] Figure 6 This is a schematic diagram of the limiting and fixing component structure of this utility model.

[0020] In the diagram: 1. Concrete structure; 2. Expansion joint; 3. Waterproof strip; 4. Limiting groove; 5. Waterproof cover plate; 6. Mounting shell; 7. Limiting shell; 8. Rotating screw; 9. Screw sleeve; 10. Hinge seat one; 11. Flip plate; 12. Hinge seat two; 13. Fixing plate; 14. Moving plate; 15. Sliding rod; 16. Lower pressure plate; 17. Spring; 18. Limiting plate; 19. Connecting handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-6A waterproof expansion joint structure includes a concrete structure 1, an expansion joint 2 between the concrete structures 1, a waterproof strip 3 inside the expansion joint 2, the expansion joint 2 overlapping the concrete structure 1, a limiting groove 4 penetrating the top of the waterproof strip 3, a waterproof cover plate 5 on the top of the concrete structure 1, an installation assembly between the bottom of the waterproof cover plate 5 and the top of the concrete structure 1, the installation assembly including an installation shell 6 fixedly installed on the bottom of the waterproof cover plate 5, a limiting shell 7 overlapping the surface of the installation shell 6, the limiting shell 7 fixedly installed on the top of the concrete structure 1, a rotating screw 8 rotatably installed inside the installation shell 6, an anti-slip knob fixedly installed at the front end of the rotating screw 8, and a threaded sleeve 9 threaded on the surface of the rotating screw 8, the threaded sleeve 9 slidingly mounted on the installation shell 6. Inside the housing 6, hinge seats 10 are fixedly installed on both sides of the screw sleeve 9. A flip plate 11 is hinged inside the hinge seat 10, and a second hinge seat 12 is hinged to the surface of the flip plate 11. A fixed plate 13 is fixedly installed on the side of the second hinge seat 12 away from the screw sleeve 9. The fixed plate 13 has a rectangular structure and is made of metal. The fixed plate 13 is slidably installed inside the housing 6. An anti-slip knob drives the rotating screw 8 to rotate, and the screw sleeve 9 pushes the flip plate 11 to flip through the hinge seat 10, causing the second hinge seat 12 to move the fixed plate 13. This allows the fixed plate 13 to contact the limiting housing 7 or separate from it. When the fixed plate 13 contacts the limiting housing 7, it can push the housing 6... By fixing the position, the position of the waterproof cover 5 can be secured. After the fixing plate 13 is separated from the limiting housing 7, the mounting housing 6 can be removed from the limiting housing 7 through the waterproof cover 5, thus facilitating the installation and removal of the waterproof cover 5. This reduces the installation time of the waterproof cover 5 and eliminates the need for tools. The waterproof cover 5 is internally equipped with a limiting and fixing component to facilitate the fixing of the limiting groove 4. The limiting and fixing component includes two movable plates 14 overlapping and set on the top of the waterproof cover 5. The two movable plates 14 are symmetrically distributed and connected by a connecting handle 19. The bottom of the movable plate 14 is fixedly provided with... A sliding rod 15 is slidably disposed inside the waterproof cover plate 5. A lower pressure plate 16 is fixedly disposed at the bottom end of the sliding rod 15. A spring 17 is connected between the top end of the lower pressure plate 16 and the upper side wall of the waterproof cover plate 5. A limiting plate 18 is fixedly disposed at the bottom of the lower pressure plate 16. An insertion groove is opened at the top of the concrete structure 1, which is adapted to the limiting plate 18. Through the insertion groove, the limiting plate 18 can be inserted into the interior of the concrete structure 1, so that the top and bottom of the limiting plate 18 can be subjected to tensile force, allowing the limiting plate 18 to withstand greater force. The transverse cross-sectional area of ​​the limiting plate 18 is the same as the longitudinal cross-sectional area of ​​the limiting groove 4. Both the transverse cross-section of the limiting plate 18 and the longitudinal cross-section of the limiting groove 4 are rectangular, so that after the limiting plate 18 is inserted into the limiting groove 4...The waterproof strip 3 will not wobble, making its position more stable. A connecting handle 19 is fixedly installed on the top of the movable plate 14. The connecting handle 19 moves the sliding rod 15 through the movable plate 14, causing the lower pressure plate 16 to compress the spring 17. This causes the lower pressure plate 16 to move the limiting plate 18. After the waterproof cover 5 is installed in place, the spring 17 pushes the lower pressure plate 16, causing the limiting plate 18 to insert into the limiting groove 4 and into the concrete structure 1. At this time, the spring 17 is still in a compressed state, and the lower pressure plate 16 is in contact with the waterproof strip 3. The lower pressure plate 16 and the limiting plate 18 fix the waterproof strip 3 in place.

[0023] In use: Place the waterproof tape 3 inside the expansion joint 2, ensuring it contacts the surface of the concrete structure 1. Insert the mounting housing 6 into the limiting housing 7 via the waterproof cover plate 5. Simultaneously, pull the connecting handle 19 to move the moving plate 14 upwards. The moving plate 14, through the sliding rod 15, compresses the spring 17 via the lower pressure plate 16, causing the lower pressure plate 16 to move the limiting plate 18 upwards. Once the mounting housing 6 is fully inserted into the limiting housing 7, release the connecting handle 19. The spring 17's rebound pushes the lower pressure plate 16 downwards, causing it to push the limiting plate 18 into the limiting groove 4, and thus into the concrete structure 1. Inside the concrete structure 1, the position of the waterproof strip 3 is fixed. The anti-slip knob drives the screw sleeve 9 to rotate, so that the two screw sleeves 9 come closer to each other. The screw sleeve 9 drives the hinge seat 10 to move, and the hinge seat 10 drives the flip plate 11 to move close to the end of the screw sleeve 9, so that the flip plate 11 flips. The flip plate 11 pushes the hinge seat 2 12 to move through the end close to the fixed plate 13, so that the hinge seat 2 12 pushes the fixed plate 13 out of the mounting shell 6 and makes the fixed plate 13 contact the inside of the limiting shell 7, fixing the position of the mounting shell 6. The mounting shell 6 cooperates with the limiting shell 7 to fix the position of the waterproof cover 5.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure for expansion joints, comprising a concrete structure (1), characterized in that, Expansion joints (2) are provided between the concrete structures (1). A waterproof strip (3) is provided inside the expansion joints (2). The expansion joints (2) overlap with the concrete structures (1). A limiting groove (4) is provided through the top of the waterproof strip (3). A waterproof cover plate (5) is provided on the top of the concrete structures (1). An installation assembly is provided between the bottom of the waterproof cover plate (5) and the top of the concrete structures (1). A limiting and fixing assembly is provided inside the waterproof cover plate (5) to facilitate fixing the position of the limiting groove (4). The installation assembly includes an installation shell (6) fixedly installed on the bottom of the waterproof cover plate (5). A limiting shell (7) overlaps on the surface of the installation shell (6). The limiting shell (7) is fixedly installed on the top of the concrete structures (1). A rotating screw (8) is rotatably provided inside the installation shell (6). An anti-slip knob is fixedly provided at the front end of the rotating screw (8). A threaded sleeve is provided on the surface of the rotating screw (8). 9), the screw sleeve (9) is slidably disposed inside the mounting housing (6), and hinge seat one (10) is fixedly disposed on both the left and right sides of the screw sleeve (9). A flip plate (11) is hingedly disposed inside the hinge seat one (10), and a hinge seat two (12) is hingedly disposed on the surface of the flip plate (11). A fixing plate (13) is fixedly disposed on the side of the hinge seat two (12) away from the screw sleeve (9). The limiting and fixing assembly includes a movable plate (14) overlapping and disposed on the top of the waterproof cover plate (5). A sliding rod (15) is fixedly disposed at the bottom of the movable plate (14). The sliding rod (15) is slidably disposed inside the waterproof cover plate (5). A lower pressure plate (16) is fixedly disposed at the bottom end of the sliding rod (15). A spring (17) is connected between the top end of the lower pressure plate (16) and the upper side wall of the waterproof cover plate (5). A limiting plate (18) is fixedly disposed at the bottom of the lower pressure plate (16). A connecting handle (19) is fixedly disposed at the top of the movable plate (14).

2. The waterproof structure for expansion joints according to claim 1, characterized in that, The fixing plate (13) has a rectangular structure and is made of metal. The fixing plate (13) is slidably disposed inside the mounting shell (6).

3. The waterproof structure for expansion joints according to claim 1, characterized in that, The transverse cross-sectional area of ​​the limiting plate (18) is the same as the longitudinal cross-sectional area of ​​the limiting groove (4), and both the transverse cross-section of the limiting plate (18) and the longitudinal cross-section of the limiting groove (4) are rectangular.

4. The waterproof structure for expansion joints according to claim 1, characterized in that, The top of the concrete structure (1) is provided with an insertion groove, which is adapted to the limiting plate (18).

5. The waterproof structure for expansion joints according to claim 1, characterized in that, The number of the movable plates (14) is two, and the two movable plates (14) are symmetrically distributed, and the two movable plates (14) are connected by a connecting handle (19).