A building crack repairing fixing device
By using anchor bolts and force-distributing mechanisms at building cracks to disperse traction forces, the problems of wall damage and secondary damage in existing technologies are solved, achieving effective crack repair and reinforcement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIFTH ENG DIV CORP LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing building crack repair devices require a large number of holes and rods to be inserted into the wall, which can cause significant damage to the wall. Furthermore, single-point stress during traction can easily cause secondary damage.
Anchor bolts and force-distributing mechanisms are used. The anchor bolts are embedded in the wall, and the force-distributing mechanisms are used to disperse the traction force. Through the cooperation of the anchor bolts and traction arms, the traction force is dispersed by threaded sleeves and bolts, star-shaped plates and fixed sleeves, and the friction between the rubber blocks of the resistance component and the wall is used for repair.
It reduces damage to the wall structure, avoids secondary damage caused by single-point stress, and achieves effective crack repair and reinforcement.
Smart Images

Figure CN224314655U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building repair technology, and in particular to a fixing device for repairing building cracks. Background Technology
[0002] Cracks may appear in building walls after prolonged use or due to other reasons. If these cracks are not repaired in time, they will become more and more serious and may even cause fundamental damage to the building. Therefore, the repair and reinforcement of building cracks is of utmost importance.
[0003] A search revealed that Chinese patent CN214462850U discloses a building crack repair and fixing device, comprising a building crack having a left wall and a right wall. The left wall has a set of left vertical insertion holes connected to a left horizontal insertion port, and the right wall has a set of right vertical insertion holes connected to a right horizontal insertion port. The right wall also has a set of oblique slots. A left vertical insertion rod is inserted into the left vertical insertion hole, and the inner end of the left vertical insertion rod is connected to a left circular ring located inside the left horizontal insertion port. A right vertical insertion rod is inserted into the right vertical insertion hole, and the inner end of the right vertical insertion rod is connected to a right circular ring located inside the right horizontal insertion port. A tensioning combination rod is provided between the left and right circular rings, comprising a left circular rod and a right circular rod. The left circular rod is connected to a set of left elastic hooks, which are inserted into the left circular ring and hooked to fix the left circular ring. The right circular rod is connected to a set of right elastic hooks, which are inserted into the right circular ring and hooked to fix the right circular ring.
[0004] The aforementioned publicly available documents describe a method for repairing and reinforcing wall cracks that involves drilling holes in the wall, inserting rods, and then pulling the rods on both sides of the crack closer together to force the wall to close towards the crack, thereby achieving the purpose of wall reinforcement. However, this method has a problem in practice: the more holes drilled and rods inserted into the wall, the greater the damage to the original wall. At the same time, when pulling the wall to close, the force at a single point of the hole is too large, which can easily cause secondary damage to the original wall. Therefore, this application proposes a building crack repair and fixing device to solve the above problems. Utility Model Content
[0005] This utility model provides a building crack repair and fixing device to solve the above-mentioned technical problems.
[0006] To solve the above-mentioned technical problems, this utility model provides a building crack repair and fixing device, including a fixing mechanism, which is used to reinforce the crack in the wall. The fixing mechanism consists of a traction mechanism and two force-sharing mechanisms.
[0007] The traction mechanism includes two anchor rods, which are embedded in the wall;
[0008] The force-sharing mechanism is installed on the anchor bolt and is used to disperse the traction force when the anchor bolt pulls the fractured wall.
[0009] Preferably, the traction mechanism further includes a traction arm, which consists of a sleeve and a traction rod. The sleeve is fixedly connected to the end of the traction rod and is sleeved on the outer end of the anchor rod. The ends of the two traction rods that are close to each other are threadedly connected to a threaded sleeve.
[0010] Preferably, the anchor rod has a bolt hole at the top, and the bolt hole is located behind the traction arm.
[0011] Preferably, the force-shaping mechanism includes a star-shaped plate, a fixed sleeve is fixedly connected through the center of the star-shaped plate, the fixed sleeve is sleeved on the outer end of the anchor rod, a bolt is threadedly connected to the top of the fixed sleeve, the bolt passes through the fixed sleeve and extends into the interior of the anchor rod, the fixed sleeve is fixedly connected to the outer end of the anchor rod by the bolt, and a resistance component is connected through the tail of the star-shaped plate.
[0012] Preferably, multiple reinforcing plates are fixedly connected to the rear side of the connection between the star-shaped plate and the fixed sleeve.
[0013] Preferably, the resistance component includes a threaded rod that passes through a star-shaped plate and is threadedly connected to the star-shaped plate. A rotating wheel is fixedly connected to the front side of the threaded rod, and a mounting plate is movably connected to the rear side of the threaded rod. A rubber block is fixedly connected to the rear side of the mounting plate, and the rear side of the rubber block contacts the outer wall of the wall.
[0014] Preferably, an extension sleeve is machined at the connection between the star-shaped plate and the threaded rod, and the threaded rod passes through the extension sleeve.
[0015] Compared with related technologies, the building crack repair and fixing device provided by this utility model has the following beneficial effects:
[0016] By anchoring two anchor rods in the traction mechanism into the walls on both sides of the crack, and then installing a force-distributing mechanism on the anchor rods, the force applied to the wall is distributed into multiple points on the wall surface when the anchor rods are pulled closer together. This reduces damage to the original wall and also reduces the force on a single point during traction. It repairs and reinforces the wall crack while avoiding secondary damage to the wall, and the effect is excellent. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the traction mechanism structure of this utility model;
[0019] Figure 3This is a first-view structural schematic diagram of the force-sharing mechanism of this utility model.
[0020] Figure 4 This is a schematic diagram of the force-sharing mechanism of this utility model from a second perspective.
[0021] The following are the labels in the diagram: 1. Fixing mechanism; 2. Traction mechanism; 21. Anchor bolt; 211. Bolt hole; 22. Traction arm; 221. Sleeve; 222. Traction rod; 23. Threaded sleeve; 3. Force distribution mechanism; 31. Star plate; 311. Extension sleeve; 32. Fixing sleeve; 33. Bolt; 34. Reinforcing plate; 35. Resistance component; 351. Threaded rod; 352. Mounting plate; 353. Rubber block; 354. Rotating wheel. Detailed Implementation
[0022] Please see Figure 1-4 The technical solution provided by this utility model specifically includes the following embodiments:
[0023] A building crack repair and fixing device includes a fixing mechanism 1, which is used to reinforce the crack in the wall. The fixing mechanism 1 is composed of a traction mechanism 2 and two force-sharing mechanisms 3.
[0024] The traction mechanism 2 includes two anchor rods 21, which are embedded in the wall;
[0025] The force-sharing mechanism 3 is installed on the anchor rod 21, and the force-sharing mechanism 3 is used to disperse the traction force when the anchor rod 21 pulls the fractured wall.
[0026] The traction mechanism 2 also includes a traction arm 22, which is composed of a sleeve 221 and a traction rod 222. The sleeve 221 is fixedly connected to the end of the traction rod 222. The sleeve 221 is sleeved on the outer end of the anchor rod 21. The ends of the two traction rods 222 that are close to each other are threadedly connected to a threaded sleeve 23.
[0027] When repairing and fixing the fractured wall, two anchor rods 21 are anchored on both sides of the fracture. Then, the two anchor rods 21 can be brought closer together by the cooperation of the traction arm 22 and the threaded sleeve 23, thereby fixing the fractured wall and preventing the fracture from expanding further.
[0028] The anchor rod 21 has a bolt hole 211 at the top. The bolt hole 211 is located behind the traction arm 22. The bolt hole 211 can cooperate with the bolt 33 in the force distribution mechanism 3 to fix the star plate 31 and the fixing sleeve 32 on the anchor rod 21.
[0029] The force-shaping mechanism 3 includes a star-shaped plate 31, with a fixed sleeve 32 fixedly connected through the center of the star-shaped plate 31. The fixed sleeve 32 is sleeved on the outer end of the anchor rod 21, and a bolt 33 is threadedly connected to the top of the fixed sleeve 32. The bolt 33 passes through the fixed sleeve 32 and extends into the interior of the anchor rod 211. The fixed sleeve 32 is fixedly connected to the outer end of the anchor rod 21 by the bolt 33. A resistance component 35 is connected through the tail of the star-shaped plate 31.
[0030] When the two anchor rods 211 in the traction mechanism 2 approach each other to pull the fractured wall, the force distribution mechanism 3 can distribute part of the traction force generated by the traction mechanism 2 from the anchor rods 211 to multiple resistance components 35, changing the traction from one point to multiple points. This can prevent the anchor rods 211 from falling off at the connection with the wall, and also prevent the wall from breaking again due to single-point stress.
[0031] Multiple reinforcing plates 34 are fixedly connected to the rear side of the connection between the star-shaped plate 31 and the fixed sleeve 32. The reinforcing plates 34 can improve the stability between the star-shaped plate 31 and the fixed sleeve 32 and avoid the problem of the component tilting when the force distribution mechanism 3 is subjected to force.
[0032] The resistance component 35 includes a threaded rod 351 that passes through a star-shaped plate 31 and is threadedly connected to the star-shaped plate 31. A rotating wheel 354 is fixedly connected to the front side of the threaded rod 351, and a mounting plate 352 is movably connected to the rear side of the threaded rod 351. A rubber block 353 is fixedly connected to the rear side of the mounting plate 352, and the rear side of the rubber block 353 contacts the outer wall of the wall.
[0033] The threaded rod 351 can be rotated by the rotating wheel 354, and then the threaded rod 351 moves back and forth relative to the star plate 31 when it rotates. When the threaded rod 351 moves backward, it can move the mounting plate 352 backward in sync and press it against the wall. The mounting plate 352 is also connected to a rubber block 353. As the resistance component 35 continues to apply pressure to the wall, the rubber block 353 is fully pressed against the wall. In this way, when the force distribution mechanism 3 cooperates with the traction mechanism 2 to pull the wall, there can be greater friction.
[0034] An extension sleeve 311 is machined at the connection point between the star-shaped plate 31 and the threaded rod 351. The threaded rod 351 passes through the extension sleeve 311. The extension sleeve 311 serves as an extension structure at the connection point between the star-shaped plate 31 and the threaded rod 351, and is also threadedly connected to the threaded rod 351. The purpose of setting the extension sleeve 311 is to ensure that the threaded rod 351 maintains a good vertical effect when it is threadedly connected to the star-shaped plate 31, thus avoiding tilting problems when pulling the wall.
[0035] Working principle:
[0036] When repairing and fixing cracks in building walls, the two anchor rods 21 in the traction mechanism 2 are anchored on both sides of the cracks in the wall respectively. Then, the force distribution mechanism 3 is fixed on the anchor rods 21. After the position of the star plate 31 is fixed, the multiple resistance components 35 are adjusted. The rotating wheel 354 is rotated to make the threaded rod 351 rotate and move the mounting plate 352 backward until the rubber block 353 is pressed tightly against the wall.
[0037] After the above preparations are completed, the traction arm 22 is put on the anchor rod 21 and the threaded sleeve 23 is used to pull the two anchor rods 21 closer together with the two traction arms 22. When the anchor rod 21 is nailed to the wall and pulled, it will apply a traction force to the wall. When the anchor rod 21 applies traction force, it can be pressed against the wall by multiple resistance components 35 in the force distribution mechanism 3 to share the traction force. Relying on the friction between the rubber block 353 and the wall, it works together with the traction mechanism 2 to pull the wall, thereby achieving the purpose of repairing and reinforcing the wall cracks and preventing the cracks from expanding further.
Claims
1. A building crack repair and fixing device, characterized in that: It includes a fixing mechanism (1) for reinforcing cracks in the wall, and the fixing mechanism (1) consists of a traction mechanism (2) and two force-sharing mechanisms (3); The traction mechanism (2) includes two anchor rods (21), which are embedded in the wall. The force-sharing mechanism (3) is installed on the anchor rod (21), and the force-sharing mechanism (3) is used to disperse the traction force when the anchor rod (21) pulls the fractured wall.
2. The building crack repair and fixing device according to claim 1, characterized in that, The traction mechanism (2) further includes a traction arm (22), which is composed of a sleeve (221) and a traction rod (222). The sleeve (221) is fixedly connected to the end of the traction rod (222). The sleeve (221) is sleeved on the outer end of the anchor rod (21). The ends of the two traction rods (222) that are close to each other are threadedly connected to a threaded sleeve (23).
3. The building crack repair and fixing device according to claim 2, characterized in that, The anchor rod (21) has a bolt hole (211) at the top, and the bolt hole (211) is located behind the traction arm (22).
4. The building crack repair and fixing device according to claim 1, characterized in that, The force-sharing mechanism (3) includes a star-shaped plate (31), a fixed sleeve (32) is fixedly connected through the center of the star-shaped plate (31), the fixed sleeve (32) is sleeved on the outer end of the anchor rod (21), a bolt (33) is threadedly connected to the top of the fixed sleeve (32), the bolt (33) passes through the fixed sleeve (32) and extends into the inside of the anchor rod (21), the fixed sleeve (32) is fixedly connected to the outer end of the anchor rod (21) by the bolt (33), and a resistance component (35) is connected through the tail of the star-shaped plate (31).
5. The building crack repair and fixing device according to claim 4, characterized in that, Multiple reinforcing plates (34) are fixedly connected to the rear side of the connection between the star-shaped plate (31) and the fixed sleeve (32).
6. The building crack repair and fixing device according to claim 4, characterized in that, The resistance component (35) includes a threaded rod (351) that passes through a star-shaped plate (31) and is threadedly connected to the star-shaped plate (31). A rotating wheel (354) is fixedly connected to the front side of the threaded rod (351), and a mounting plate (352) is movably connected to the rear side of the threaded rod (351). A rubber block (353) is fixedly connected to the rear side of the mounting plate (352), and the rear side of the rubber block (353) contacts the outer wall of the wall.
7. A building crack repair and fixing device according to claim 6, characterized in that, An extension sleeve (311) is machined at the connection point between the star-shaped plate (31) and the threaded rod (351), and the threaded rod (351) passes through the extension sleeve (311).