An anti-seismic reinforcing structure for wall joints

Abstract

The application relates to the field of wall body anti-seismic reinforcing structures, in particular to a wall body joint anti-seismic reinforcing structure which comprises positioning grooves located at the joints of new walls, the positioning grooves are horizontally arranged, placing grooves are symmetrically arranged above and below the positioning grooves, the placing grooves are arranged in the joints of the new walls and are all inclined to the positioning grooves, reinforcing grooves are symmetrically arranged above and below the positioning grooves in parallel, and the reinforcing grooves and the placing grooves are interconnected; each placing groove is inserted with a sub-reinforcing block, the end of adjacent sub-reinforcing blocks is connected with a mother reinforcing block, the combined shape of the sub-reinforcing block and the mother reinforcing block is cross-shaped, a through hole is arranged in the middle of the mother reinforcing block, an expansion bolt is horizontally arranged in the through hole, the fixed end of the expansion bolt is located in the positioning groove, and fixing grooves are arranged on the outer walls of the sub-reinforcing block and the mother reinforcing block; each fixing groove is arranged with a connecting plate through high-strength bolts; and the overall anti-seismic reinforcing effect can be increased through internal reinforcement.

Description

Technical Field

[0001] This invention relates to the field of seismic reinforcement structures for walls, specifically a seismic reinforcement structure for wall junctions. Background Technology

[0002] Earthquake resistance in buildings refers to the engineering measures taken to mitigate earthquake damage. The fundamental purpose of seismic fortification is, under certain economic conditions, to design and implement seismic-resistant measures for buildings during construction. This aims to limit and mitigate earthquake damage to engineering structures to the greatest extent possible, thereby avoiding casualties and minimizing economic losses. A series of measures should be adopted in building design and construction to enhance the seismic resistance of buildings.

[0003] The junction of walls generally refers to the connection between old and new walls. Since the old walls are designed to be earthquake-resistant from the beginning, while the new walls are constructed later, their earthquake resistance differs from that of the old walls. Therefore, the earthquake resistance of the new walls must be considered when constructing them.

[0004] The junction between old and new walls is the weakest point of both. A common seismic reinforcement method involves post-casting and integral molding. This involves creating an uneven surface at the junction of the old and new walls, then constructing a formwork and pouring concrete, allowing the new wall to adhere perfectly to one side of the old wall. After the new wall is formed, the outer walls of both are reinforced. However, this method is difficult to implement, requiring careful testing of the materials and humidity levels of both walls. Any deviations can lead to cracking at the junction, and without internal reinforcement, the overall seismic reinforcement effect is weak. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides a seismic reinforcement structure for wall junctions.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a seismic reinforcement structure at the junction of walls, including a positioning groove located at the junction of the new walls, the positioning groove being horizontally set, and placement grooves being set symmetrically above and below the positioning groove, the placement grooves being opened in the junction of the new walls and all inclined to the positioning groove, and reinforcement grooves being symmetrically set along the vertical parallel direction of the positioning groove, and the reinforcement grooves and placement grooves being interconnected. Each of the placement slots is fitted with a sub-reinforcing block, and the ends of adjacent sub-reinforcing blocks are connected to a mother-reinforcing block. The combination of the sub-reinforcing blocks and the mother-reinforcing blocks forms a cross shape. A through hole is provided in the center of the interior of the mother-reinforcing block, and an expansion bolt is horizontally installed in the through hole. The fixed end of the expansion bolt is located in the positioning groove. Fixing grooves are provided on the outer walls of both the sub-reinforcing blocks and the mother-reinforcing blocks. A connecting plate is installed in each fixing groove by a high-strength bolt. The mother reinforcement block has symmetrically welded outer tubes on both sides of one end of the back ion reinforcement block. Each outer tube has an inner tube installed inside. A pull plate is set near the tail of the inner tube. The pull plate has an L-shaped cross section. The inner wall of the pull plate is close to the new wall and the old wall respectively, and the pull plate is locked to the old wall by bolts.

[0007] Specifically, the outer wall of the sub-reinforcing block is provided with mounting grooves at equal intervals along its path direction, and each mounting groove is fitted with a rubber sleeve.

[0008] Specifically, each of the sub-reinforcing blocks has an internal groove at its center. The end of the internal groove facing the wall is connected to a positioning hole. A guide post is fixedly installed at the center of the internal groove. A toothed sliding sleeve is inserted into the outer wall of the guide post. Gears are symmetrically meshed on the outer side of the toothed sliding sleeve, and the gears are installed in the internal groove through gear shafts. A reinforcing block is meshed on one side of each gear, and the reinforcing block is slidably installed on the inner wall of the internal groove. A placement hole is opened at the end of the sub-reinforcing block near the reinforcing groove. A traction block is placed in the placement hole. The traction block is connected to the toothed sliding sleeve by a steel rope. A reinforcing rod is installed on the outer side of the traction block by a threaded fit. The reinforcing rod is located in the reinforcing groove, and the length of the reinforcing rod is greater than the length of the reinforcing groove. A connecting groove is opened at the end face of the mother reinforcing block facing the sub-reinforcing block.

[0009] Specifically, the sleeve is composed of an air-storing airbag and an outward-expanding airbag. A venting tube connects the air-storing airbag and the outward-expanding airbag. The air-storing airbag is located in the internal groove, and the outward-expanding airbag is located in the mounting groove. The inner wall areas of the outward-expanding airbag are brought together by adhesive. A deflection plate is hinged to the internal groove near the air-storing airbag. A compression block is fixedly installed on the inner wall of the deflection plate, and the outer wall of the compression block is close to the outer wall of the air-storing airbag. A drive block is fixedly installed at equal intervals on a portion of the outer wall of the toothed sliding sleeve, and the inclined surface of the drive block is close to the outer wall of the deflection plate.

[0010] Specifically, the outer wall of the reinforcing rod is a non-smooth surface, and several internal grooves are irregularly arranged on the outer wall of the reinforcing rod.

[0011] Specifically, the outer wall of the reinforcing rod is welded with a steel bar column, and the other end of the steel bar column is welded and fixed to the outer wall of the mother reinforcing block.

[0012] Specifically, the expansion bolt has a washer fitted on its outer wall, and the washer has an inclined chamfer at one end edge facing the mother reinforcement block.

[0013] Specifically, the outer tube and the inner tube are connected by a threaded connection.

[0014] The beneficial effects of this invention are: This invention discloses a seismic reinforcement structure for wall junctions. The structure comprises sub-reinforcing blocks and mother-reinforcing blocks. Compared to traditional concrete pouring, these components are embedded within the old and new walls. Each sub-reinforcing block and mother-reinforcing block forms a triangular structure with the old and new walls, respectively, exhibiting high stability. The cross-shaped assembly formed by the sub-reinforcing blocks and mother-reinforcing blocks, with its own center as the axis, is equivalent to being rotated 30-45° and embedded at the junction of the old and new walls. This significantly increases the contact area between the sub-reinforcing blocks / mother-reinforcing blocks and the old and new walls, providing multi-directional reinforcement in both vertical and horizontal directions. Compared to simple concrete pouring, this structure offers higher seismic resistance, greater connection strength at the junction of the old and new walls, reduces the likelihood of cracking, and simplifies construction. This invention discloses a seismic reinforcement structure for wall junctions. Before pouring new wall concrete, a reinforcing rod can be inserted into a reinforcing groove and combined with a traction block. The reinforcing rod is then pulled outward, causing the traction block and steel cable to move. The other end of the steel cable pulls a toothed sliding sleeve along a guide post. After sliding, the toothed sliding sleeve drives a gear to rotate, which in turn drives a reinforcing block to slide in an internal groove. The direction of the reinforcing block's movement is opposite to that of the toothed sliding sleeve. When the toothed sliding sleeve slides along the guide post to its maximum distance, the reinforcing block moves along the positioning hole into the connecting groove. This internal reinforcement between the sub-reinforcing block and the parent reinforcing block is achieved through the reinforcing block, thereby increasing the connection rigidity between them. The present invention discloses a seismic reinforcement structure for wall junctions. During the sliding of the toothed sliding sleeve along the guide post, it synchronously drives the driving block to move. The inclined surface of the driving block slides along the deflection plate and applies a compressive force. Under this compressive force, the deflection plate deflects along the hinge seat, causing the compressive block to move towards the air-storage bladder. The air-storage bladder is compressed under the pressure of the compressive block, and the gas stored inside rushes into the outward-expanding bladder. The inner walls of the outward-expanding bladder, initially close together by the adhesive, are expanded by the gas. Under the action of the gas, the outer wall of the outward-expanding bladder presses tightly against the placement groove, increasing the contact area and compressive force between the outer wall of the outward-expanding bladder and the placement groove, further increasing the installation stability of the sub-reinforcement block. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure and installation of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure and installation of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 This is a partial structural cross-sectional view of the reinforcing block of the present invention; Figure 5For the present invention Figure 4 A magnified view of a portion of region A in the middle; Figure 6 For the present invention Figure 4 A magnified view of a portion of region B in the middle; In the diagram: 1. Positioning groove; 2. Placement groove; 3. Reinforcing groove; 4. Sub-reinforcing block; 5. Female reinforcing block; 6. Expansion bolt; 7. Outer tube; 8. Inner tube; 9. Pull plate; 51. Connecting groove; 52. Fixing groove; 53. Connecting plate; 41. Mounting groove; 42. Rubber sleeve; 43. Internal groove; 44. Positioning hole; 45. Guide post; 46. Toothed sliding sleeve; 47. Gear; 48. Reinforcing block; 49. Traction block; 40. Steel rope; 491. Reinforcing rod; 421. Air storage bag; 422. Outward expansion bag; 431. Deflection plate; 432. Extrusion block; 433. Drive block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] Furthermore, the terms used below are defined based on the functionality of this invention and may vary depending on the user's, operator's, or conventions. Therefore, these terms are defined based on the entire contents of this specification.

[0019] See Figure 1-6 The present invention discloses a seismic reinforcement structure for wall junctions, comprising a positioning groove 1 located at the junction of the new wall and the positioning groove 1 being horizontally positioned, and placement grooves 2 being symmetrically positioned above and below the positioning groove 1. The placement grooves 2 are opened within the junction of the new wall and are all inclined to the positioning groove 1. Reinforcement grooves 3 are symmetrically arranged along the vertical parallel direction of the positioning groove 1 and are interconnected with the placement grooves 2. The positioning groove 1, placement groove 2 and reinforcement groove 3 are not pre-reserved structures. That is, before construction of the new wall, the construction personnel use drilling equipment, such as an electric drill, to drill the positioning groove 1, placement groove 2 and reinforcement groove 3 at the junction of the old wall, and the distance between adjacent positioning grooves 1 is maintained between 1-1.5m. Each of the placement slots 2 is fitted with a sub-reinforcing block 4. The shape of the sub-reinforcing block 4 corresponds to the shape of the placement slot 2. Therefore, during construction, the construction personnel should measure the structural dimensions of the sub-reinforcing block 4 and open the placement slot 2 according to the measured dimensions using a hole-opening device. The thickness of the sub-reinforcing block 4 should be kept between 0.1 and 0.125 times the thickness of the old wall to avoid damaging the old wall structure. The ends of adjacent sub-reinforcing blocks 4 are connected to a female reinforcing block 5. A through hole is opened in the center of the interior of the female reinforcing block 5. An expansion bolt 6 is horizontally installed in the through hole, and the fixed end of the expansion bolt 6 is located in the positioning groove 1. The outer walls of both the sub-reinforcing blocks 4 and the female reinforcing blocks 5 are provided with fixing grooves 52. A connecting plate 53 is installed in each fixing groove 52 by a high-strength bolt. During construction, after the positioning groove 1, the placement groove 2 and the reinforcing groove 3 are opened, several sub-reinforcing blocks 4 are completely inserted into the placement groove 2. Then, the expansion bolt 6 is inserted into the through hole, and one end of the expansion bolt 6 is aligned with the positioning groove 1. The expansion bolt 6 is hammered into the positioning groove 1 with a hammer. Then, the expansion bolt 6 is locked in the positioning groove 1 with a wrench. In this state, the end face of the female reinforcing block 5 is in close contact with the end face of the sub-reinforcing block 4. Finally, the connecting plate 53 is installed in the fixing groove 52 to complete the fixed installation of the sub-reinforcing blocks 4 and the female reinforcing blocks 5. The mother reinforcement block 5 and the back ion reinforcement block 4 are symmetrically welded with outer tubes 7 on both sides of one end. Each outer tube 7 is equipped with an inner tube 8. Specifically, the outer tube 7 and the inner tube 8 are connected by a threaded connection. After the sub-reinforcing block 4 and the mother reinforcement block 5 are installed, the inner tube 8 is rotated according to the thickness of the new wall so that the inner tube 8 is exposed relative to the outer tube 7. The total length of the inner tube 8 and the outer tube 7 should be greater than the overall thickness of the new wall. That is, each inner tube 8 is also exposed relative to the new wall. The exposed length of the two inner tubes 8 in the same horizontal plane is consistent. A tie plate 9 is installed near the tail of the inner tube 8. The tie plate 9 has an L-shaped cross-section. The inner wall of the tie plate 9 is close to the new wall and the old wall respectively, and the tie plate 9 is locked to the old wall with bolts. After the above steps are completed, the construction personnel can set up the formwork for the new wall. After the formwork is set up, concrete is poured into the mold. The pouring process will not be described in detail in this invention. After the new wall concrete is completely formed, the tie plate 9 is placed close to the wall surfaces of the old wall and the new wall. The tie plate 9 is fixed to the old wall and the inner tube 8 respectively with bolts. The tie plate 9 provides external support for the position of the inner tube 8, that is, external support for the position of the mother reinforcement block 5. The sub-reinforcing block 4 and the mother reinforcing block 5 are combined in a cross shape. This can also be understood as the sub-reinforcing block 4 and the mother reinforcing block 5 forming a triangular structure with the old wall and the new wall respectively, each possessing high stability. The cross-shaped component formed by the sub-reinforcing block 4 and the mother reinforcing block 5 is centered on its own axis, equivalent to being rotated 30-45° and placed at the junction of the old wall and the new wall. This significantly increases the contact area between the sub-reinforcing block 4 and the mother reinforcing block 5 and the old and new walls, providing multi-directional reinforcement in the vertical and horizontal directions of the old and new walls. Compared to simple concrete pouring connections, this results in higher seismic resistance, greater connection strength at the junction of the old and new walls, and less susceptibility to cracking.

[0020] In another embodiment, see Figure 3The outer wall of the sub-reinforcing block 4 is provided with mounting grooves 41 at equal intervals along its path direction. Each mounting groove 41 is fitted with a rubber sleeve 42. The rubber sleeve 42 has a certain area of ​​outward protrusion relative to the outer wall of the sub-reinforcing block 4. When the sub-reinforcing block 4 is inserted into the placement groove 2 during construction, the rubber sleeve 42 will slide along the inner wall of the placement groove 2. The two have high friction. When the mother reinforcing block 5 is not installed, the sub-reinforcing block 4 will not fall off by itself.

[0021] In another embodiment, see Figures 2-6 Each of the sub-reinforcing blocks 4 has an internal groove 43 centered inside. One end of the internal groove 43 facing the wall is connected to a positioning hole 44. A guide post 45 is fixedly installed at the center of the internal groove 43. A toothed sliding sleeve 46 is inserted into the outer wall of the guide post 45. Gears 47 are symmetrically meshed on the outer side of the toothed sliding sleeve 46, and the gears 47 are installed in the internal groove 43 via gear shafts. A reinforcing block 48 meshes on one side of each gear 47, and the reinforcing block 48 is slidably installed on the inner wall of the internal groove 43. A placement hole is provided at one end of the sub-reinforcing block 4 near the reinforcing groove 3. A traction block 49 is placed in the placement hole. The traction block 49 is connected to the toothed sliding sleeve 46 by a steel cable 40. A reinforcing rod 491 is threadedly installed on the outer side of the traction block 49. The reinforcing rod 491 is located in the reinforcing groove 3, and its length is greater than that of the reinforcing groove 3. The length of the mother reinforcement block 5 is such that a connecting groove 51 is provided on the end face of the mother reinforcement block 5 facing the child reinforcement block 4. Based on the above description, before pouring the new wall, the reinforcement rod 491 can be inserted into the reinforcement groove 3 and combined with the traction block 49, and the reinforcement rod 491 can be pulled outward. The reinforcement rod 491 pulls the traction block 49 and the steel rope 40 to move. The other end of the steel rope 40 pulls the toothed sliding sleeve 46 to slide on the guide post 45. After the toothed sliding sleeve 46 slides, it drives the gear 47 to rotate. After the gear 47 rotates, it drives the reinforcing block 48 to slide in the inner groove 43. The direction of the reinforcing block 48 is opposite to the direction of the toothed sliding sleeve 46. When the toothed sliding sleeve 46 slides along the guide post 45 to the maximum distance, the reinforcing block 48 moves along the positioning hole 44 to the connecting groove 51. That is, the internal reinforcement between the child reinforcement block 4 and the mother reinforcement block 5 is achieved through the reinforcing block 48, thereby increasing the connection rigidity between the two. In the above process, there are cases where the diameter of the reinforcing groove 3 is larger than the outer diameter of the reinforcing rod 491. Therefore, after the construction personnel pull the reinforcing rod 491 to its farthest distance, they can use a pin or other limiting component to insert into the gap between the reinforcing groove 3 and the reinforcing rod 491 to lock the position of the reinforcing rod 491. When pouring concrete for the new wall construction later, some concrete will be injected into the gap between the two. The longer reinforcing rod 491 is also located inside the new wall as a reinforcing component, which further increases the seismic resistance and firmness of the invention. At the same time, the outer wall of the reinforcing rod 491 is welded with a steel column, and the other end of the steel column is welded and fixed to the outer wall of the mother reinforcing block 5. The steel column reinforces the vertical direction of the reinforcing rod 491, so that the reinforcing rod 491 is not easily deformed under the impact of concrete when the new wall is poured.

[0022] In another embodiment, see Figures 2-6 The sleeve 42 is composed of an air-storing airbag 421 and an expanding airbag 422. A vent pipe connects the air-storing airbag 421 and the expanding airbag 422. The air-storing airbag 421 is located within the internal groove 43, and the expanding airbag 422 is located within the mounting groove 41. The inner walls of the expanding airbag 422 are held together by adhesive, which is not a wall adhesive. The inner walls of the expanding airbag 422 tend to separate. A deflection plate 431 is hinged to the internal groove 43 near the air-storing airbag 421. Initially, the deflection plate 431 is inclined relative to the inner wall of the internal groove 43. A compression block 432 is fixedly installed on the inner wall of the deflection plate 431, and the outer wall of the compression block 432 is in close contact with the outer wall of the air-storing airbag 421. Drive blocks 433 are fixedly installed at equal intervals on a portion of the outer wall of the toothed sliding sleeve 46. The inclined surface of the drive block 433 is close to the outer wall of the deflection plate 431. During operation, the toothed sliding sleeve 46 moves synchronously along the guide post 45, and the inclined surface of the drive block 433 slides along the deflection plate 431 and applies a squeezing force to it. Under the action of this squeezing force, the deflection plate 431 deflects along the hinge seat, driving the squeezing block 432 to move towards the air storage bladder 421. The air storage bladder 421 is compressed under the pressure of the squeezing block 432, and the gas stored inside rushes into the outward expansion bladder 422. The inner walls of the outward expansion bladder 422, which are initially close together by the adhesive, are expanded by the gas. Under the action of this gas, the outer wall of the outward expansion bladder 422 is close to the placement groove 2, increasing the contact area and squeezing force between the outer wall of the outward expansion bladder 422 and the placement groove 2, further increasing the installation stability of the sub-reinforcing block 4.

[0023] See Figures 2-6 The outer wall of the reinforcing rod 491 is a non-smooth surface, and the outer wall of the reinforcing rod 491 has several irregularly arranged inner grooves. When the new wall is constructed, some concrete enters into the irregularly arranged inner grooves, increasing the contact area with the new wall and further improving the firmness between the new wall and the old wall.

[0024] See Figures 2-6 The expansion bolt 6 has a washer fitted on its outer wall, and the washer has an inclined chamfer at one end of its edge facing the mother reinforcement block 5. In this case, when the expansion bolt 6 is fully inserted into the positioning groove 1, the inclined chamfer of the washer is just close to the inner side of the mother reinforcement block 5, providing vertical support to the upper area of ​​the mother reinforcement block 5.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seismic reinforcement structure for wall junctions, characterized in that, It includes a positioning groove (1) located at the junction of the new wall and the positioning groove (1) is horizontally set, and a placement groove (2) is set at a symmetrical position above and below the positioning groove (1). The placement groove (2) is opened in the junction of the new wall and is inclined to the positioning groove (1). A reinforcement groove (3) is symmetrically set along the vertical parallel direction of the positioning groove (1), and the reinforcement groove (3) and the placement groove (2) are interconnected. Each of the placement slots (2) is fitted with a sub-reinforcing block (4), and the ends of adjacent sub-reinforcing blocks (4) are connected to a mother reinforcing block (5). The sub-reinforcing block (4) and the mother reinforcing block (5) are combined in a cross shape. A through hole is provided in the center of the interior of the mother reinforcing block (5), and an expansion bolt (6) is horizontally installed in the through hole. The fixed end of the expansion bolt (6) is located in the positioning slot (1). Fixing slots (52) are provided on the outer walls of both the sub-reinforcing block (4) and the mother reinforcing block (5). A connecting plate (53) is installed in each fixing slot (52) by a high-strength bolt. The mother reinforcement block (5) and the back ion reinforcement block (4) are symmetrically welded with outer tubes (7) on both sides of one end. Each outer tube (7) is equipped with an inner tube (8). A pull plate (9) is set near the tail of the inner tube (8). The pull plate (9) has an L-shaped cross section. The inner wall of the pull plate (9) is close to the new wall and the old wall respectively. The pull plate (9) is locked to the old wall by bolts.

2. The seismic reinforcement structure at the wall junction according to claim 1, characterized in that: The outer wall of the sub-reinforcing block (4) is provided with mounting grooves (41) at equal intervals along its path direction, and each mounting groove (41) is fitted with a rubber sleeve (42).

3. The seismic reinforcement structure at the wall junction according to claim 2, characterized in that: Each of the aforementioned sub-reinforcing blocks (4) has an internal groove (43) at its center. One end of the internal groove (43) facing the wall is connected to a positioning hole (44). A guide post (45) is fixedly installed at the center of the internal groove (43). A toothed sliding sleeve (46) is inserted into the outer wall of the guide post (45). Gears (47) are symmetrically meshed on the outer side of the toothed sliding sleeve (46). The gears (47) are installed in the internal groove (43) through a gear shaft. A reinforcing block (48) meshes on one side of each gear (47). The reinforcing block (48) slides in place. Installed on the inner wall of the built-in groove (43), the sub-reinforcing block (4) has a placement hole at one end near the reinforcing groove (3), and a traction block (49) is placed in the placement hole. The traction block (49) is connected to the toothed sliding sleeve (46) by a steel rope (40). A reinforcing rod (491) is installed on the outer side of the traction block (49) by a threaded fit. The reinforcing rod (491) is located in the reinforcing groove (3), and the length of the reinforcing rod (491) is greater than the length of the reinforcing groove (3). A connecting groove (51) is opened on the end face of the mother reinforcing block (5) facing the sub-reinforcing block (4).

4. The seismic reinforcement structure at the wall junction according to claim 3, characterized in that: The sleeve (42) is composed of an air-storing airbag (421) and an expanding airbag (422). A venting tube is connected between the air-storing airbag (421) and the expanding airbag (422). The air-storing airbag (421) is located in the built-in groove (43), and the expanding airbag (422) is located in the mounting groove (41). The inner wall areas of the expanding airbag (422) are brought together by glue. A deflection plate (431) is hinged to the built-in groove (43) near the air-storing airbag (421). A compression block (432) is fixedly installed on the inner wall of the deflection plate (431), and the outer wall of the compression block (432) is close to the outer wall of the air-storing airbag (421). A drive block (433) is fixedly installed at equal intervals on a portion of the outer wall of the toothed sliding sleeve (46), and the inclined surface of the drive block (433) is close to the outer wall of the deflection plate (431).

5. A seismic reinforcement structure for wall junctions according to claim 3, characterized in that: The outer wall of the reinforcing rod (491) is a non-smooth surface, and the outer wall of the reinforcing rod (491) has several irregularly arranged internal grooves.

6. The seismic reinforcement structure at the wall junction according to claim 3, characterized in that: The outer wall of the reinforcing rod (491) is welded with a steel column, and the other end of the steel column is welded and fixed to the outer wall of the mother reinforcing block (5).

7. The seismic reinforcement structure at the wall junction according to claim 1, characterized in that: The expansion bolt (6) has a gasket fitted on its outer wall, and the gasket has an inclined chamfer at one end of its edge facing the mother reinforcement block (5).

8. The seismic reinforcement structure at the wall junction according to claim 1, characterized in that: The outer tube (7) and the inner tube (8) are connected by a threaded connection.

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