Dustproof expansion joint convenient to disassemble and assemble
By introducing a dustproof board and a double-layer waterstop structure into the expansion joint, the problems of reduced waterproof performance and inconvenient replacement caused by the aging of the waterstop are solved, achieving easy disassembly and assembly as well as efficient dustproof and waterproof effects.
Patent Information
- Application Number
- CN202520471622.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing expansion joint waterstops are single-layered, which are prone to aging or damage, resulting in reduced waterproofing performance. In addition, the pre-installed waterstops make replacement inconvenient.
A structure including a base, cover plate, dustproof plate, buffer spring and double-layer waterstop is designed. The dustproof plate can slide and limit the movement, and the double-layer waterstop is detachable for easy and quick replacement.
It improves the dustproof and waterproof performance of expansion joints, and facilitates the quick disassembly and replacement of waterstops, thus improving operational efficiency.
Smart Images

Figure CN223951984U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of expansion joint, concretely is a dustproof expansion joint convenient to dismount. BACKGROUND
[0002] The building expansion joint is expansion joint, which is a structural joint arranged at appropriate positions along the construction joint direction of buildings or structures to prevent structural members from cracking or being damaged due to temperature changes (thermal expansion and cold contraction) of the climate.
[0003] After retrieval, the announcement number is CN222275240U, and the name is a precise anti-impact expansion joint with anti-trapping function, which includes a base. Through research and analysis, it is found that although the expansion joint not only has anti-trapping effect, but also can resist impact, improve the service life of the expansion joint, prolong the cleaning period of the expansion joint, and reduce the physical consumption of workers, but to some extent, it still has the following shortcomings.
[0004] For example, the water stop belt is single-layered, which is easy to age or be damaged during use, thereby reducing the waterproof performance of the expansion joint. At the same time, the overall structure of the water stop belt is preset for installation, which is not convenient for quick dismounting and replacement when the water stop belt is damaged, thereby reducing the operation difficulty of workers. In order to solve the above technical problems, we have designed a dustproof expansion joint convenient to dismount. UTILITY MODEL CONTENTS
[0005] The utility model is to provide a dustproof expansion joint convenient to dismount, have convenient to dismount, dustproof and waterproof good advantage, solved the water stop belt for single -layered setting, in the use middle -aged aging or be damaged easily, thereby can cause the waterproof performance of expansion joint to reduce, simultaneously, the overall structure of water stop belt is preset for installation, when the water stop belt is damaged, the problem that is not convenient for quick dismounting and replacement.
[0006] To achieve the above object, the utility model provides following technical scheme: A dustproof expansion joint convenient to dismount, including base, the number of base is two, the opposite side of base is all embedded with concrete base block, the bottom between base is fixed with bottom plate, the top and bottom of opposite side of concrete base block is provided with slot one and guide groove respectively, the inner chamber of guide groove is provided with guide plate, the top of guide plate is provided with slot two, the left and right sides of base top all are provided with installation groove, the top of installation groove is fixed with cover plate, cover plate and installation groove between be provided with dustproof subassembly, dustproof subassembly includes dustproof plate, the both ends of dustproof plate respectively extend to the inside of both sides installation groove, the left and right sides of dustproof plate top all are provided with sliding hole, the left and right sides of dustproof plate all are fixed with buffer spring, buffer spring is fixed in the inner wall of installation groove, be provided with sealing assembly between concrete base block, sealing assembly includes intermediate support and side support, the bottom of intermediate support is fixed with inserting block, the left and right sides of intermediate support are provided with upper water stop tape and lower water stop tape from top to bottom respectively, the both sides of intermediate support are provided with side support, the top and bottom of inside of side support are provided with water stop tape slot one and water stop tape slot two respectively, upper water stop tape and lower water stop tape extend to the inner chamber of water stop tape slot one and water stop tape slot two respectively.
[0007] Preferably, the bottom of the bottom plate is provided with a fastening bolt, the top of the fastening bolt penetrates the bottom plate and is threadedly connected with the bottom of the base.
[0008] Preferably, the surface of the guide plate is in sliding contact with the inner wall of the guide groove, and the bottom of the inserting block is inserted into the interior of the slot two and is fitted with the inner wall thereof.
[0009] Preferably, the top of the cover plate is provided with a fastening screw, the bottom of the fastening screw penetrates the sliding hole and is threadedly connected with the top of the base.
[0010] Preferably, the upper water stop tape and the lower water stop tape are made of rubber material, the top of the left and right sides of the intermediate support is provided with a sealing groove matched with the upper water stop tape, and one end of the upper water stop tape is arranged in the interior of the sealing groove.
[0011] Preferably, one end of the lower water stop tape is fixedly connected with the bottom of the surface of the intermediate support, and the bottom of the side support is inserted into the interior of the slot one and is fitted with the inner wall thereof.
[0012] Preferably, the bottom of the inner chamber of the installation groove is provided with a thread groove matched with the fastening screw, and the surface of the fastening screw is in sliding contact with the inner wall of the sliding hole.
[0013] Compared with the prior art, the utility model has the beneficial effects as follows:
[0014] 1、The utility model discloses through being provided with dustproof board above base, make dust not enter the water stop tape, effectively guarantee the dustproof effect of expansion joint, then the vertical cylinder cover board is positioned to dustproof board, make it can slide inside the installation groove, the elastic force is exerted to dustproof board through buffer spring, make dustproof board can always be located above expansion joint, keep dustproof performance, can not shift, improve dustproof effect.
[0015] 2、The utility model discloses through setting up upper water stop tape and lower water stop tape, utilize double -deck water stop tape to waterproof expansion joint, effectively improve expansion joint waterproof performance, and the both ends of upper water stop tape are all set up as detachable structure, can replace it fast, in the use process, cooperate dustproof board and position intermediate support and side support, make it not fall off, when disassembling, only need to disassemble dustproof board, can whole disassembly seal assembly, reach quick disassembly effect. DRAWINGS
[0016] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the three -dimensional structure schematic diagram of the utility model;
[0018] Figure 3 It is the three -dimensional structure schematic diagram of the utility model;
[0019] Figure 4 It is the three -dimensional structure schematic diagram of the utility model;
[0020] In the drawing: 1, base;2, cover plate;3, dustproof component;31, dustproof board;32, sliding hole;33, buffer spring;4, concrete base block;5, bottom plate;6, guide plate;7, guide groove;8, seal assembly;81, intermediate support;82, upper water stop tape;83, lower water stop tape;84, side support;85, insert block;86, water stop tape slot one;87, water stop tape slot two;9, fastening bolt;10, fastening screw;11, insert slot two;12, installation groove;13, insert slot one. SPECIFIC IMPLEMENTATION
[0021] Please refer to Figures 1-4The utility model provides a dustproof expansion joint convenient to dismount, including base 1, the number of base 1 is two, and the opposite side of base 1 is embeddedly installed with concrete base block 4, and the bottom between base 1 is fixedly installed with bottom plate 5, and the top and bottom of opposite side of concrete base block 4 are provided with slot one 13 and guide groove 7 respectively, and the inner chamber of guide groove 7 is provided with guide plate 6, and the top of guide plate 6 is provided with slot two 11, and the left and right sides of the top of base 1 are all provided with installation slot 12, and the top of installation slot 12 is fixedly installed with cover plate 2, and dustproof assembly 3 is arranged between cover plate 2 and installation slot 12, and dustproof assembly 3 includes dustproof plate 31, and the both ends of dustproof plate 31 extend to the inside of installation slot 12 on both sides respectively, and the left and right sides of the top of dustproof plate 31 are all provided with sliding hole 32 in penetration, and the left and right sides of dustproof plate 31 are all fixedly connected with buffer spring 33, and buffer spring 33 is fixedly installed on the inner wall of installation slot 12, and sealing assembly 8 is arranged between concrete base block 4, and sealing assembly 8 includes intermediate support 81 and side support 84, and the bottom of intermediate support 81 is fixedly connected with plug 85, and the left and right sides of intermediate support 81 are provided with upper water stop band 82 and lower water stop band 83 from top to bottom respectively, and side support 84 is arranged on both sides of intermediate support 81, and the top and bottom of the inner side of side support 84 are provided with water stop band clamping groove one 86 and water stop band clamping groove two 87 respectively, and upper water stop band 82 and lower water stop band 83 extend to the inner chamber of water stop band clamping groove one 86 and water stop band clamping groove two 87 respectively,
[0022] Please refer to Figure 2 The bottom of bottom plate 5 is provided with fastening bolt 9 in penetration, the top of fastening bolt 9 penetrates bottom plate 5 and is in threaded connection with the bottom of base 1, through the arrangement of fastening bolt 9, the stable connection of bottom plate 5 and base 1 can be facilitated, and the stability of base 1 is guaranteed.
[0023] Please refer to Figure 1 The surface of guide plate 6 is in sliding contact with the inner wall of guide groove 7, and the bottom of plug 85 is inserted into the inside of slot two 11 and is attached to the inner wall thereof.
[0024] Please refer to Figure 1 And Figure 3 The top of cover plate 2 is provided with fastening screw 10 in penetration, the bottom of fastening screw 10 penetrates sliding hole 32 and is in threaded connection with the top of base 1, through the arrangement of fastening screw 10, cover plate 2 can be fixed on the top of base 1, dustproof plate 31 can be positioned, and the up-and-down shaking of dustproof plate 31 is avoided.
[0025] Please refer to Figure 1 And Figure 4The upper waterstop belt 82 and the lower waterstop belt 83 are made of rubber material, and the top of the left and right sides of the middle support 81 is provided with a sealing groove matched with the upper waterstop belt 82. By arranging the sealing groove, the upper waterstop belt 82 can be stably installed on the surface of the middle support 81, and has good sealing performance, avoiding water leakage. One end of the upper waterstop belt 82 is arranged in the sealing groove;
[0026] Please refer to Figure 1 、 Figure 3 and Figure 4 One end of the lower waterstop belt 83 is fixedly connected with the bottom of the surface of the middle support 81, and the bottom of the side support 84 is inserted into the inside of the insertion slot one 13 and matched with the inner wall thereof.
[0027] Please refer to Figure 3 The bottom of the inner cavity of the installation groove 12 is provided with a threaded groove matched with the fastening screw 10, and the surface of the fastening screw 10 is in sliding contact with the inner wall of the sliding hole 32. By arranging the sliding hole 32, the fastening screw 10 can be conveniently penetrated, so that the dustproof plate 31 is limited, and the dustproof plate 31 will not move forward and backward.
[0028] In use, the concrete base block 4 is installed on the inside of the base 1, the bottom plate 5 is used to connect the two bases 1, and the bottom plate 5 is fixed on the bottom of the two bases 1 through the fastening bolts 9. Then the middle support 81 is inserted into the insertion slot two 11 through the insertion block 85 at the bottom, one end of the upper waterstop belt 82 is clamped above the two sides of the middle support 81, and then the bottom of the side support 84 is inserted into the insertion slot one 13. As shown in Figure 1 , one end of the upper waterstop belt 82 and the lower waterstop belt 83 away from the middle support 81 is respectively inserted into the waterstop belt clamping groove one 86 and the waterstop belt clamping groove two 87 for connection, and two layers of waterstop belts are used to improve the waterproof effect. Then the dustproof plate 31 is placed in the installation groove 12, at this time, the bottom of the dustproof plate 31 is in contact with the top of the middle support 81 and the side support 84, and then the cover plate 2 is covered on both sides of the top of the dustproof plate 31, and the cover plate 2 is fixed on the top of the base 1 by the fastening screw 10. At this time, the dustproof plate 31 can move left and right below the cover plate 2, but cannot move upward, so the sealing assembly 8 cannot move up and down, achieving one-step installation effect. When the sealing assembly 8 needs to be disassembled, the dustproof plate 31 only needs to be disassembled.
[0029] In summary: the dustproof expansion joint convenient to disassemble solves the problems that the waterstop belt is single-layered, is easy to age or be damaged in use, thereby reducing the waterproof performance of the expansion joint, and the whole structure of the waterstop belt is pre-installed, which is not convenient for quick disassembly and replacement when the waterstop belt is damaged.
Claims
1. A dust-proof expansion joint convenient to disassemble, comprising a base (1), characterized in that: The number of the base (1) is two, opposite sides of the base (1) are embeddedly installed with concrete base blocks (4), the bottom of the base (1) is fixedly installed with a bottom plate (5), the top and bottom of the opposite side of the concrete base block (4) are respectively provided with a slot one (13) and a guide slot (7), the inner cavity of the guide slot (7) is provided with a guide plate (6), the top of the guide plate (6) is provided with a slot two (11), the left and right sides of the top of the base (1) are provided with installation grooves (12), the upper side of the installation groove (12) is fixedly installed with a cover plate (2), the cover plate (2) and the installation groove (12) are provided with a dustproof assembly (3), the dustproof assembly (3) comprises a dustproof plate (31), both ends of the dustproof plate (31) extend into the installation groove (12) on both sides, the left and right sides of the top of the dustproof plate (31) are provided with sliding holes (32), the left and right sides of the dustproof plate (31) are fixedly connected with buffer springs (33), the buffer springs (33) are fixedly installed on the inner wall of the installation groove (12), the concrete base blocks (4) are provided with a sealing assembly (8), the sealing assembly (8) comprises an intermediate support (81) and a side support (84), the bottom of the intermediate support (81) is fixedly connected with a plug-in block (85), the left and right sides of the intermediate support (81) are provided from top to bottom with an upper water stop belt (82) and a lower water stop belt (83), the side support (84) is arranged on both sides of the intermediate support (81), the top and bottom of the inner side of the side support (84) are respectively provided with a water stop belt clamping groove one (86) and a water stop belt clamping groove two (87), the upper water stop belt (82) and the lower water stop belt (83) extend into the inner cavities of the water stop belt clamping groove one (86) and the water stop belt clamping groove two (87) respectively.
2. The dust-proof expansion joint convenient to disassemble according to claim 1, characterized in that: The bottom of the bottom plate (5) is provided with a fastening bolt (9), the top of the fastening bolt (9) penetrates the bottom plate (5) and is in threaded connection with the bottom of the base (1).
3. The dust-proof expansion joint convenient to disassemble according to claim 1, characterized in that: The surface of the guide plate (6) is in sliding contact with the inner wall of the guide slot (7), the bottom of the plug-in block (85) is inserted into the inner part of the slot two (11) and is fitted with the inner wall thereof.
4. The dust-proof expansion joint convenient to disassemble according to claim 1, characterized in that: The top of the cover plate (2) is provided with a fastening screw (10), the bottom of the fastening screw (10) penetrates the sliding hole (32) and is in threaded connection with the top of the base (1).
5. The dust-proof expansion joint convenient to disassemble according to claim 1, characterized in that: The upper water stop belt (82) and the lower water stop belt (83) are both made of rubber material, the top of the left and right sides of the intermediate support (81) is provided with a sealing groove matched with the upper water stop belt (82), one end of the upper water stop belt (82) is arranged in the inner part of the sealing groove.
6. The dust-proof expansion joint convenient to disassemble according to claim 1, characterized in that: One end of the lower water stop belt (83) is fixedly connected with the bottom of the surface of the intermediate support (81), the bottom of the side support (84) is inserted into the inner part of the slot one (13) and is fitted with the inner wall thereof.
7. The dust-proof expansion joint convenient to disassemble according to claim 4, characterized in that: The bottom of the inner cavity of the installation groove (12) is provided with a thread groove matched with the fastening screw (10), the surface of the fastening screw (10) is in sliding contact with the inner wall of the sliding hole (32).
Citation Information
Patent Citations
Precise impact-resistant expansion joint with anti-sinking function
CN222275240U