Anti-cracking building expansion joint structure

Abstract

This utility model discloses a crack-resistant building expansion joint structure, relating to the technical field of building expansion joint structures. The utility model includes a side beam, with a detachable expansion component at the top of the side beam and a buffer component at the bottom between the side beams. The detachable expansion component includes a mounting groove located at the top of one side of the side beam. A mounting frame is movably connected to the inner cavity of the mounting groove, and a rubber band is mounted on the top of the mounting frame. A pressure plate is mounted on the top of the side beam. This utility model utilizes the elastic deformation of the rubber band and the reciprocating compression of springs at both ends of the beam to form a dual buffering mechanism. When the building expands or contracts due to factors such as temperature changes and foundation settlement, the movement of the side beam compresses the rubber band, and the springs push the beams to move between the side beams, effectively absorbing and buffering the impact force generated by structural deformation, reducing the risk of cracking caused by rigid collisions.

Description

Technical Field

[0001] This utility model belongs to the technical field of building expansion joint structure, and in particular relates to a crack-resistant building expansion joint structure. Background Technology

[0002] In building construction, expansion joints are structural joints designed to accommodate the expansion and contraction of buildings caused by factors such as temperature changes and uneven settlement of the foundation. They play a vital role in ensuring the structural safety and normal use of buildings. Common building expansion joint structures typically consist of a foundation, a joint body, and filling material.

[0003] Currently, the filling materials used in common building expansion joint structures are mostly traditional materials such as rubber and asphalt. These materials have a certain degree of elasticity and cushioning performance when initially used, and can adapt well to the expansion and contraction deformation of buildings. However, during long-term use, these filling materials will inevitably age. Over time, rubber will gradually harden and become brittle, losing its original elasticity; asphalt will also reduce its elasticity due to oxidation, volatilization, and other reasons. The aging and reduced elasticity of the filling materials will lead to a significant reduction in the cushioning performance of the building expansion joint structure.

[0004] To address these issues, we provide a crack-resistant building expansion joint structure. Utility Model Content

[0005] The purpose of this utility model is to provide a crack-resistant building expansion joint structure. By combining detachable expansion components and buffer components, it solves the problem that the filling materials of existing building expansion joint structures are mostly traditional materials such as rubber and asphalt. During long-term use, these filling materials will inevitably age, resulting in a significant reduction in the buffering performance of the building expansion joint structure.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a crack-resistant building expansion joint structure, comprising a side beam, a detachable telescopic component at the top of the side beam, and a buffer component at the bottom between the side beams. The detachable telescopic component includes a mounting groove located at the top of one side of the side beam. A mounting bracket is movably connected to the inner cavity of the mounting groove, and a rubber band is provided at the top of the mounting bracket. A pressure plate is provided at the top of the side beam, and a mounting screw is connected through the surface of the pressure plate. A rod is fixedly connected to the bottom of the pressure plate, and the rod is connected through the rubber band. The buffer component includes a buffer groove located at the bottom of one side of the side beam. A slider is movably connected to the bottom of the inner cavity of the buffer groove, and a crossbeam is fixedly connected to the top of the slider. A buffer frame is fixedly connected to the top of the crossbeam, and a spring is fixedly connected to one side of the buffer frame.

[0008] The present invention is further configured such that a mounting plate is fixedly connected to the bottom of the mounting frame, a fixing frame is fixedly connected to one side of the mounting plate, and a magnetic disk is fixedly connected to one side of the fixing frame. When the rubber belt ages and its elasticity decreases, the expansion and contraction of the two side beams increases, the distance between the magnetic disks decreases, and the two magnetic disks with the same pole begin to interact with each other, thereby achieving buffer expansion and contraction between the two side beams through repulsive force.

[0009] The present invention is further configured such that a pressure-bearing seat is fixedly connected to the bottom of the opposite side of the edge beam, and a pressure-bearing strip is fixedly connected to the front and back of the pressure-bearing seat. The pressure-bearing seat and the pressure-bearing strip form a high-strength pressure-bearing structure, which can improve the pressure resistance of one side of the edge beam to the building.

[0010] The present invention is further configured such that slots are provided on both sides of the bottom of the mounting groove cavity, and a locking block is movably connected to the inner cavity of the slot. The top of the locking block is fixedly connected to the bottom of the mounting frame. The locking block is inserted into the inner cavity of the slot along with the mounting frame. The limiting structure composed of the locking block and the slot can greatly improve the stability of the mounting frame installed in the inner cavity of the mounting groove on the top of the side beam.

[0011] The present invention is further configured such that an embedding groove is provided on one side of the top of the side beam, and an embedding plate is movably connected to the inner cavity of the embedding groove. The top of the embedding plate is fixedly connected to the bottom of the pressure plate. The embedding plate is inserted into the inner cavity of the embedding groove along with the pressure plate. The limiting structure formed by the embedding plate and the embedding groove can improve the stability of the pressure plate installed on the top of the side beam.

[0012] The present invention is further configured such that a sliding groove is provided at the bottom of the inner cavity of the buffer groove, and a movable block is movably connected to the inner cavity of the sliding groove. The top of the movable block is fixedly connected to the bottom of the slider. The movable block moves in the inner cavity of the sliding groove as the slider moves. The limiting structure composed of the movable block and the sliding groove can limit the movement range of the slider and its top crossbeam and improve the movement stability of the slider and its top crossbeam.

[0013] The present invention is further configured such that a top groove is provided at the top of the inner cavity of the buffer groove, and the top of the buffer frame is movably connected to the inner cavity of the top groove. The top of the buffer frame moves in the inner cavity of the top groove as the crossbeam moves. The top groove can limit the movement of the buffer frame, thereby further improving the movement stability of the buffer frame and its bottom crossbeam.

[0014] The present invention is further configured such that buffer sleeves are fixedly connected to both ends of the crossbeam, and a buffer pad is fixedly connected to one side of the inner cavity of the buffer groove. When the crossbeam moves to its limit due to the expansion and contraction range, it will cause the buffer sleeve at one end to contact the buffer pad on the inner wall of the buffer groove. The elastic buffer structure composed of the buffer sleeve and the buffer pad avoids one end of the crossbeam from making hard contact with the inner wall of the buffer groove.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model forms a dual buffer mechanism through the elastic deformation of the rubber belt and the reciprocating compression of the springs at both ends of the crossbeam. When the building undergoes expansion and contraction due to factors such as temperature changes and foundation settlement, the movement of the side beam causes the rubber belt to be compressed, and the springs push the crossbeam to move between the side beams. This can effectively absorb and buffer the impact force generated by structural deformation and reduce the risk of cracking caused by rigid collisions.

[0017] 2. In this utility model, when the rubber belt ages, it can be quickly disassembled and replaced without damaging the overall structure. If the rubber belt is attached to the mounting bracket, it can also be disassembled and cleaned as a whole, which greatly reduces the maintenance difficulty and cost. In addition, a redundant buffering mechanism of the same pole magnet is set up. When the rubber belt ages and its elasticity decreases, and the expansion and contraction of the side beam increases, the magnets generate a repulsive force due to the reduced spacing, forming an additional buffering force, ensuring that the expansion joint can still maintain the basic buffering function after the components age. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional diagram of a crack-resistant building expansion joint structure.

[0020] Figure 2 This is a cross-sectional schematic diagram of a crack-resistant building expansion joint structure.

[0021] Figure 3 A crack-resistant building expansion joint structure Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 This is a schematic diagram of the installation groove cavity in a crack-resistant building expansion joint structure.

[0023] Figure 5 This is a schematic diagram of the bottom of the pressure plate in a crack-resistant building expansion joint structure.

[0024] In the attached diagram: 1. Side beam; 2. Detachable telescopic assembly; 3. Buffer assembly; 201. Mounting groove; 202. Mounting bracket; 203. Rubber belt; 204. Pressure plate; 205. Mounting screw; 206. Insert rod; 301. Buffer groove; 302. Slider; 303. Crossbeam; 304. Buffer bracket; 305. Spring; 4. Mounting plate; 5. Fixing bracket; 6. Magnet disc; 7. Pressure bearing seat; 8. Pressure bearing strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model is a crack-resistant building expansion joint structure, including a side beam 1. A detachable expansion component 2 is provided on the top of the side beam 1, and a buffer component 3 is provided at the bottom between the side beams 1. The detachable expansion component 2 includes a mounting groove 201, which is opened at the top of one side of the side beam 1. A mounting bracket 202 is movably connected to the inner cavity of the mounting groove 201. A rubber strip 203 is provided on the top of the mounting bracket 202. A pressure plate 204 is provided on the top of the side beam 1, and the surface of the pressure plate 204 penetrates... A mounting screw 205 is used for the through connection. A rod 206 is fixedly connected to the bottom of the pressure plate 204. The rod 206 is connected to the rubber belt 203 through the through connection. The buffer assembly 3 includes a buffer groove 301. The buffer groove 301 is opened at the bottom of one side of the side beam 1. A slider 302 is movably connected to the bottom of the inner cavity of the buffer groove 301. A crossbeam 303 is fixedly connected to the top of the slider 302. A buffer frame 304 is fixedly connected to the top of the crossbeam 303. A spring 305 is fixedly connected to one side of the buffer frame 304.

[0028] Specifically: When the two side beams 1 move along with the two parts of the building, they will squeeze the rubber strip 203 and repeatedly squeeze the crossbeam 303 through the spring 305, causing the crossbeam 303 to move between the side beams 1 under the action of the springs 305 at both ends. When the rubber strip 203 ages, hardens and becomes brittle during long-term use, unscrew the mounting screws 205 on the surface of the pressure plate 204, move the pressure plate 204 up so that the insert rod 206 at the bottom of the pressure plate 204 disengages from the inner cavity of the rubber strip 203, and remove the rubber strip 203 for replacement. If the rubber strip 203 is stuck to the mounting bracket 202, it can be disassembled and cleaned together with the mounting bracket 202.

[0029] Example 2

[0030] Please see Figure 1-5 Based on Embodiment 1, a mounting plate 4 is fixedly connected to the bottom of the mounting bracket 202, a fixing bracket 5 is fixedly connected to one side of the mounting plate 4, a magnetic disk 6 is fixedly connected to one side of the fixing bracket 5, and a pressure bearing seat 7 is fixedly connected to the bottom of the opposite side of the side beam 1. Pressure bearing strips 8 are fixedly connected to the front and back of the pressure bearing seat 7. Slots are provided on both sides of the bottom of the inner cavity of the mounting groove 201, and a locking block is movably connected to the inner cavity of the slot. The top of the locking block is fixedly connected to the bottom of the mounting bracket 202, and one side of the top of the side beam 1... An embedding groove is provided, and an embedding plate is movably connected to the inner cavity of the embedding groove. The top of the embedding plate is fixedly connected to the bottom of the pressure plate 204. A sliding groove is provided at the bottom of the inner cavity of the buffer groove 301. A movable block is movably connected to the inner cavity of the sliding groove. The top of the movable block is fixedly connected to the bottom of the slider 302. A top groove is provided at the top of the inner cavity of the buffer groove 301. The top of the buffer frame 304 is movably connected to the inner cavity of the top groove. Buffer sleeves are fixedly connected to both ends of the crossbeam 303. A buffer pad is fixedly connected to one side of the inner cavity of the buffer groove 301.

[0031] Specifically: When the rubber belt 203 ages and its elasticity decreases, the expansion and contraction of the two side beams 1 increase, the distance between the magnet discs 6 decreases, and the two like-pole magnet discs 6 begin to interact. Through repulsive force, buffer expansion and contraction between the two side beams 1 are achieved. The pressure seat 7 and the pressure strip 8 form a high-strength pressure-bearing structure, which can improve the pressure resistance of one side of the side beam 1 against the building. The locking block is inserted into the inner cavity of the slot along with the mounting bracket 202. The limiting structure formed by the locking block and the slot can greatly improve the stability of the mounting bracket 202 installed in the inner cavity of the mounting groove 201 at the top of the side beam 1. The embedded plate is inserted into the inner cavity of the embedded groove along with the pressure plate 204. The limiting structure formed by the embedded plate and the embedded groove can improve the stability of the pressure plate 204 installed on the top of the side beam 1. The block moves within the inner cavity of the slide groove as the slider 302 moves. The limiting structure composed of the movable block and the slide groove can restrict the movement range of the slider 302 and its top crossbeam 303, and improve the movement stability of the slider 302 and its top crossbeam 303. The top of the buffer frame 304 moves within the inner cavity of the top groove as the crossbeam 303 moves. The top groove can limit the movement of the buffer frame 304, thereby further improving the movement stability of the buffer frame 304 and its bottom crossbeam 303. When the crossbeam 303 moves to its limit due to the extension and contraction range, it will cause the buffer sleeve at one end to contact the buffer pad on the inner wall of the buffer groove 301. The elastic buffer structure composed of the buffer sleeve and the buffer pad avoids hard contact between one end of the crossbeam 303 and the inner wall of the buffer groove 301.

[0032] The working principle of this utility model is as follows: When the building expansion joint structure is installed between two parts of a building, and the building expands or contracts due to factors such as temperature changes and uneven foundation settlement, it will cause the two side beams 1 to move. The movement of the side beams 1 will compress the rubber strip 203, and the crossbeam 303 will be repeatedly compressed by the springs 305. This causes the crossbeam 303 to move between the side beams 1 under the action of the springs 305 at both ends. The elasticity of the rubber strip 203 itself and the elastic buffer structure of the crossbeam 303 achieve buffering between the two side beams 1. When the rubber strip 203 ages, hardens, and becomes brittle during long-term use, the compression joint can be removed. The mounting screws 205 on the surface of plate 204 are used to move the pressure plate 204 upward so that the insertion rod 206 at the bottom of the pressure plate 204 disengages from the inner cavity of the rubber strip 203. The rubber strip 203 is then removed and replaced. If the rubber strip 203 is stuck to the mounting bracket 202, it can be removed and cleaned together with the mounting bracket 202. In addition, when the rubber strip 203 ages and its elasticity decreases, the expansion and contraction of the two side beams 1 will increase, and the distance between the magnet discs 6 will decrease accordingly. The two like-pole magnet discs 6 will begin to interact with each other, and the buffer expansion and contraction between the two side beams 1 will be achieved through repulsive force, thus maintaining the basic function of the building expansion joint structure.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A crack-resistant building expansion joint structure, comprising a side beam (1), characterized in that: A detachable telescopic assembly (2) is provided at the top of the side beam (1), and a buffer assembly (3) is provided at the bottom between the side beams (1); The detachable telescopic assembly (2) includes a mounting groove (201), which is opened at the top of one side of the side beam (1). The mounting groove (201) is movably connected to a mounting bracket (202). A rubber strip (203) is provided at the top of the mounting bracket (202). A pressure plate (204) is provided at the top of the side beam (1). A mounting screw (205) is connected through the surface of the pressure plate (204). A plug rod (206) is fixedly connected to the bottom of the pressure plate (204). The plug rod (206) is connected through the rubber strip (203). The buffer assembly (3) includes a buffer groove (301), which is located at the bottom of one side of the side beam (1). A slider (302) is movably connected to the bottom of the inner cavity of the buffer groove (301). A crossbeam (303) is fixedly connected to the top of the slider (302). A buffer frame (304) is fixedly connected to the top of the crossbeam (303). A spring (305) is fixedly connected to one side of the buffer frame (304).

2. The anti-cracking building expansion joint structure according to claim 1, characterized in that: The bottom of the mounting bracket (202) is fixedly connected to a mounting plate (4), a fixing bracket (5) is fixedly connected to one side of the mounting plate (4), and a magnet disk (6) is fixedly connected to one side of the fixing bracket (5).

3. The anti-cracking building expansion joint structure according to claim 1, characterized in that: The bottom of the opposite side of the side beam (1) is fixedly connected to a pressure seat (7), and the front and back of the pressure seat (7) are fixedly connected to a pressure strip (8).

4. The anti-cracking building expansion joint structure according to claim 1, characterized in that: The mounting groove (201) has slots on both sides of the bottom of the inner cavity. The slots are movably connected to the inner cavity of the slots, and the top of the slots is fixedly connected to the bottom of the mounting bracket (202).

5. The anti-cracking building expansion joint structure according to claim 1, characterized in that: An embedding groove is provided on one side of the top of the side beam (1), and an embedding plate is movably connected to the inner cavity of the embedding groove. The top of the embedding plate is fixedly connected to the bottom of the pressure plate (204).

6. The anti-cracking building expansion joint structure according to claim 1, characterized in that: The bottom of the inner cavity of the buffer groove (301) is provided with a sliding groove, and a movable block is movably connected to the inner cavity of the sliding groove. The top of the movable block is fixedly connected to the bottom of the slider (302).

7. The anti-cracking building expansion joint structure according to claim 1, characterized in that: The top of the inner cavity of the buffer groove (301) is provided with a top groove, and the top of the buffer frame (304) is movably connected to the inner cavity of the top groove.

8. The anti-cracking building expansion joint structure according to claim 1, characterized in that: Both ends of the crossbeam (303) are fixedly connected to buffer sleeves, and a buffer pad is fixedly connected to one side of the inner cavity of the buffer groove (301).

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