Prefabricated shear wall vertical reinforcement fixing device
By designing a combination fixing device with adjustable clips and nuts, the problem of existing technologies being unable to adapt to vertical ribs of different diameters is solved, achieving efficient fixing of vertical ribs and reducing construction costs and management complexity.
Patent Information
- Application Number
- CN202521887230.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-03
AI Technical Summary
Existing shear wall vertical reinforcement fixing devices are mostly designed with a single specification, which cannot be adapted to vertical reinforcements of different diameters, resulting in high equipment procurement costs, difficulty in inventory management, and low construction efficiency.
Design a fixing device including a main keel frame and adjustable clips. By combining the adjustable clips and nuts, it can adapt to vertical ribs of different diameters. The clips can be adjusted in position as needed and fixed by nuts, avoiding the need to replace the device.
It improved construction efficiency, reduced construction costs, and simplified equipment replacement and inventory management.
Smart Images
Figure CN224678994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shear wall vertical reinforcement fixing technology, specifically a prefabricated shear wall vertical reinforcement fixing device. Background Technology
[0002] Shear walls are core components in building structures that bear lateral loads. They are mainly used to resist horizontal forces such as earthquakes and wind loads, while also serving the functions of load-bearing and space partitioning. In prefabricated building systems, shear walls are mostly constructed using precast components. They are built by prefabricating wall units in the factory and assembling them on site. Vertical steel bars are usually embedded inside the shear walls. These vertical bars are not only key force transmission components for the wall, but also need to be reliably connected with the steel bars of adjacent components to ensure the overall stability, seismic resistance, and load-bearing capacity of the prefabricated structure. They are an important guarantee for the safety performance of prefabricated shear wall structures.
[0003] Fixing the vertical reinforcement bars of shear walls is a key process in the construction of prefabricated shear walls. It refers to the operation of positioning and fixing the vertical reinforcement bars in the preset positions through specific methods during the prefabrication or on-site assembly stage of the wall. This provides a precise benchmark for subsequent component splicing and reinforcement connection, directly affecting the connection quality of the shear wall and the overall structural stress performance. It is an important link to ensure the construction accuracy and safety of prefabricated buildings.
[0004] In existing technologies, shear wall vertical reinforcement fixing devices are mostly designed with a single specification. The inner diameter of their fixing components is relatively fixed, making them unable to directly adapt to vertical reinforcements of different diameters. When multiple inner diameter reinforcements are involved in construction, it is necessary to replace the fixing device with one of the corresponding specifications to meet the fixing requirements. This not only increases equipment procurement costs and inventory management difficulties but also requires additional time for device disassembly and replacement, resulting in reduced construction efficiency and increased construction costs. Therefore, this utility model proposes a prefabricated shear wall vertical reinforcement fixing device to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a prefabricated shear wall vertical reinforcement fixing device to solve the problem that the shear wall vertical reinforcement fixing devices mentioned in the background art are mostly single-specification designs with relatively fixed inner diameter dimensions of their fixing components, which cannot be directly adapted to vertical reinforcements of different diameters. When multiple inner diameter reinforcements are involved in construction, it is necessary to replace the fixing device with the corresponding specification to meet the fixing requirements. This not only increases the equipment procurement cost and inventory management difficulty, but also requires additional time for device disassembly and replacement, resulting in reduced construction efficiency and increased construction costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated shear wall vertical reinforcement fixing device, comprising a main keel frame, an adjustable clamp slidably connected to the outer wall of the main keel frame, a reinforcement protection fixing sleeve hole fixedly connected to the top of the adjustable clamp, a nut threadedly connected to the outer wall of the reinforcement protection fixing sleeve hole, several circumferentially uniform and symmetrical square grooves opened on the outer wall of the reinforcement protection fixing sleeve hole, clamping blocks provided inside the square grooves, wall panel reinforcement bars slidably connected inside the reinforcement protection fixing sleeve hole, through holes opened on both the front and rear sides of the adjustable clamp, bolts slidably connected inside the through holes, and several symmetrical threaded grooves opened on the front and rear sides of the outer wall of the main keel frame.
[0007] Preferably, the top of both sides of the clamping block is fixedly connected to a locking block, and the inner wall of the square groove is provided with a locking groove corresponding to the locking block.
[0008] Preferably, the card block is a hemispherical protrusion, the inner wall of the card slot is fitted with the outer wall of the card block, and the card block is engaged and connected inside the card slot.
[0009] Preferably, the inner walls on both sides of the main keel frame are fixedly connected to fixing blocks, the fixing blocks have through round holes inside, and the fixing blocks are rotatably connected to handles inside.
[0010] Preferably, the outer wall of the bolt fits the shape of the inner wall of the thread groove, and the bolt is threaded inside the thread groove.
[0011] Preferably, the main keel frame is a rectangular frame, and the adjustable clips are slidably connected to the front and rear crossbars of the main keel frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: a nut is added to the outer wall of the rebar fixing sleeve, and a clamping block with a narrow top and wide bottom is provided on the inner wall of the sleeve. When the nut is turned downwards, the inner wall of the nut is squeezed along the inclined surface of the clamping block, which forces the clamping block to shrink radially, thereby clamping the rebar in the sleeve. Since the shrinkage range of the clamping block can be adjusted with the turning of the nut, it can be adapted to vertical bars of different diameters and specifications. There is no need to replace the device, which improves construction efficiency and reduces construction costs. Attached Figure Description
[0013] Figure 1 This is a front perspective view of the overall structure of this utility model;
[0014] Figure 2 This is a partial structural breakdown diagram of the adjustable clip of this utility model;
[0015] Figure 3 This is a partial structural diagram of the reinforcing bar protection fixing sleeve hole of this utility model;
[0016] Figure 4 for Figure 3Enlarged view of the local structure at point A in the middle
[0017] Figure 5 This is a cross-sectional view of the overall structure of this utility model.
[0018] In the diagram: 1. Main keel frame; 2. Adjustable clip; 3. Rebar protection fixing sleeve hole; 4. Nut; 5. Wall panel reinforcement; 6. Square groove; 7. Clamping block; 8. Locking block; 9. Locking groove; 10. Fixing block; 11. Handle; 12. Bolt; 13. Through hole; 14. Threaded groove. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Please see Figures 1 to 5 This utility model provides a technical solution: a prefabricated shear wall vertical reinforcement fixing device, including a main keel frame 1, which serves as the overall load-bearing and supporting foundation of the device. An adjustable clamp 2 is slidably connected to the outer wall of the main keel frame 1. This sliding connection allows the adjustable clamp 2 to move freely along the length of the main keel frame 1. The installation position of the adjustable clamp 2 can be flexibly adjusted according to the actual spacing of the wall panel reinforcement 5 at the construction site, meeting the fixing requirements under different working conditions. A reinforcement protection fixing sleeve hole 3 is fixedly connected to the top of the adjustable clamp 2. The reinforcement protection fixing sleeve hole 3, as a component directly in contact with the wall panel reinforcement 5, has a smooth inner wall to reduce wear on the reinforcement. A nut 4 is threadedly connected to the outer wall of the reinforcement protection fixing sleeve hole 3, and the inner thread of the nut 4 is completely aligned with the outer thread of the reinforcement protection fixing sleeve hole 3. The fully matched structure achieves axial movement through rotation, providing driving force for subsequent clamping actions. The outer wall of the rebar protection fixing sleeve hole 3 is provided with several circumferentially uniform and symmetrical square grooves 6. The spacing between adjacent square grooves 6 is equal to ensure uniform force distribution. Clamping blocks 7 are provided inside the square grooves 6. The height of the clamping blocks 7 is consistent with the depth of the square grooves 6, allowing them to move flexibly radially within the square grooves 6. The top of both sides of the clamping blocks 7 are fixedly connected with locking blocks 8, which are hemispherical protrusions. The inner wall of the square groove 6 is provided with locking grooves 9 corresponding to the locking blocks 8. The inner wall of the locking grooves 9 fits against the outer wall of the locking blocks 8, and the locking blocks 8 are engaged inside the locking grooves 9, forming a tight engagement that prevents the clamping blocks 7 from coming out of the square grooves 6 and provides guidance for the radial movement of the clamping blocks 7. The interior of the rebar protection fixing sleeve hole 3 is slidably connected with wall panel reinforcing bars 5.
[0021] Specifically, during operation, based on the actual spacing of the wall panel reinforcing bars 5 at the construction site, push the adjustable clip 2 along the length of the main keel frame 1 to move it to the installation point corresponding to the position of the wall panel reinforcing bars 5, so that the axis of the reinforcing bar protection fixing sleeve hole 3 at the top of the adjustable clip 2 is basically aligned with the axis of the wall panel reinforcing bars 5. Then, hold the wall panel reinforcing bar 5 and slowly insert it into the reinforcing bar protection fixing sleeve hole 3. Utilize the sliding connection characteristics of the two to fine-tune the position of the wall panel reinforcing bars 5, ensuring that its extension length and verticality meet the construction requirements. During this process, due to the reinforcing bar protection fixing sleeve hole 3... The inner wall is smoothed to reduce wear on the surface of the wall panel reinforcing bar 5 during insertion. After the reinforcing bar is inserted, use a wrench to rotate the nut 4 connected to the threaded connection on the outer wall of the reinforcing bar protection fixing sleeve hole 3. During the rotation, the nut 4 moves downward along the axis and continuously squeezes the clamping block 7 in the square groove 6. This forces the clamping block 7 to contract radially under the guidance of the clamping block 8 and the clamping groove 9. The tight engagement of the clamping block 8 and the clamping groove 9 can effectively prevent the clamping block 7 from coming out of the square groove 6 until the inner wall of the clamping block 7 is tightly attached to the outer wall of the wall panel reinforcing bar 5, thus completing the clamping and fixing of the wall panel reinforcing bar 5.
[0022] Secondly, the main keel frame 1 is a rectangular frame with good resistance to deformation, providing reliable support for the assembly of subsequent components. The adjustable clip 2 is slidably connected to the front and rear crossbars of the main keel frame 1. The front and rear crossbars serve as the sliding tracks for the adjustable clip 2. The smooth bar wall design reduces sliding friction, allowing the adjustable clip 2 to move precisely along the length of the crossbar. This facilitates adjusting the fixing point according to the arrangement of the wall panel reinforcement 5. To ensure stable fixing of the adjustable clip 2 after movement, through holes 13 are provided on both the front and rear sides of the adjustable clip 2. Bolts 12 are slidably connected inside the through holes 13. The inner diameter of the through holes 13 matches the outer diameter of the bolts 12, allowing the bolts 12 to pass smoothly without significant wobbling. Several symmetrical threaded grooves 14 are provided on the front and rear sides of the outer wall of the main keel frame 1. The spacing of the threaded grooves 14 is designed according to the common wall panel reinforcement 5 arrangement density, ensuring that the adjustable clip 2 can be adjusted to any position. All can be found with corresponding fixed points. The outer wall of bolt 12 fits the inner wall of thread groove 14. Bolt 12 is threaded into the inside of thread groove 14. Rotating bolt 12 can make the bolt head press tightly against the outer wall of adjustable clip 2, thereby locking the adjustable clip 2 firmly in the preset position of main keel frame 1, avoiding clip displacement due to vibration during construction, and ensuring the fixing accuracy of wall panel reinforcement 5. To facilitate the handling, installation and position fine adjustment of main keel frame 1, fixing blocks 10 are fixedly connected to the inner walls of both sides of main keel frame 1. The inside of fixing block 10 has a through round hole. The inside of fixing block 10 is rotatably connected to handle 11. The outer wall of handle 11 fits tightly against the inner wall of round hole, which can achieve 360° flexible rotation and avoid loosening and jamming during rotation. Operators can adjust the grip angle by rotating handle 11, which is convenient for handling, moving and calibrating the position of main keel frame 1 during construction.
[0023] Specifically, before operation, the operator first holds the handles 11 fixed to the inner walls on both sides of the main keel frame 1 with both hands, adjusts the handles 11 to a comfortable angle according to their gripping habits, and moves the main keel frame 1 to the designated construction position. After arriving at the construction position, according to the arrangement of the wall panel reinforcing bars 5, the operator pushes the adjustable clips 2 along the front and rear horizontal bars of the main keel frame 1. The front and rear horizontal bars serve as sliding tracks, and their smooth bar wall design greatly reduces sliding friction, allowing the adjustable clips 2 to move precisely along the length of the horizontal bars until the adjustable clips 2 are adjusted to the fixed point corresponding to the wall panel reinforcing bars 5. Then, the operator retrieves the... Bolt 12 is aligned with the through holes 13 on the front and rear sides of the adjustable clamp 2 and slowly inserted. After insertion, bolt 12 is aligned with the threaded grooves 14 on the front and rear sides of the outer wall of the main keel frame 1. Then, bolt 12 is rotated clockwise using a tool. Taking advantage of the fit between the outer wall of bolt 12 and the inner wall of threaded groove 14, bolt 12 is threaded into the threaded groove 14. As the rotation continues, the head of bolt 12 gradually presses tightly against the outer wall of adjustable clamp 2, and finally the adjustable clamp 2 is firmly locked in the preset position of the main keel frame 1, so as to prevent the clamp from shifting due to vibration during subsequent construction.
[0024] Before operating this device, the operator should first hold the handles 11 fixed to the inner walls on both sides of the main keel frame 1 with both hands, and adjust the handles 11 to a comfortable angle according to their grip habits. Then, move the main keel frame 1 to the designated construction location. Upon arrival, based on the actual spacing of the wall panel reinforcement bars 5 at the construction site, push the adjustable clips 2 along the front and rear horizontal bars of the main keel frame 1. The smooth walls of the front and rear horizontal bars reduce sliding friction, allowing the adjustable clips 2 to move precisely to the corresponding installation points, ensuring that the axis of the top reinforcement protection fixing sleeve hole 3 is basically aligned with the axis of the wall panel reinforcement bars 5. Then, insert the bolts 12 into the front and rear through holes 13 of the adjustable clips 2, aligning them with the main keel. Frame 1 has an outer wall threaded groove 14. Using a tool, rotate bolt 12 clockwise to achieve a threaded connection by utilizing the shape fit of the two. The head of bolt 12 presses against the outer wall of the clamping piece to lock it firmly. Then, hold the wall panel protruding rib 5 and slowly insert it into the steel bar protection fixing sleeve hole 3. Use the sliding connection to fine-tune the position to ensure that the protrusion length and verticality meet the requirements. The smooth treatment of the inner wall of the sleeve hole can reduce steel bar wear. Finally, use a wrench to rotate the nut 4 on the outer wall of the sleeve hole, so that it moves axially downward to squeeze the clamping block 7 in the square groove 6. The clamping block 7 retracts radially under the guidance of the locking block 8 and the locking groove 9, locking and preventing the clamping block from coming out, until the inner wall of the clamping block 7 is attached to the outer wall of the wall panel protruding rib 5, completing the clamping and fixing.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A prefabricated shear wall vertical reinforcement fixing device, characterized in that: Including the main keel frame (1); The outer wall of the main keel frame (1) is slidably connected with an adjustable clip (2), the top of the adjustable clip (2) is fixedly connected with a steel bar protection fixing sleeve hole (3), the outer wall of the steel bar protection fixing sleeve hole (3) is threaded with a nut (4), the outer wall of the steel bar protection fixing sleeve hole (3) is provided with several circumferentially uniform and symmetrical square grooves (6), the inside of the square grooves (6) is provided with a clamp (7), and the inside of the steel bar protection fixing sleeve hole (3) is slidably connected with a wall panel reinforcing bar (5); The adjustable clip (2) has through holes (13) on both the front and rear sides, and bolts (12) are slidably connected inside the through holes (13). The outer wall of the main keel frame (1) has several symmetrical threaded grooves (14) on the front and rear sides.
2. The prefabricated shear wall vertical reinforcement fixing device according to claim 1, characterized in that: The clamping block (7) has a locking block (8) fixedly connected to the top of both sides, and the inner wall of the square groove (6) has a locking groove (9) corresponding to the locking block (8).
3. The prefabricated shear wall vertical reinforcement fixing device according to claim 2, characterized in that: The card block (8) is a hemispherical protrusion, the inner wall of the card groove (9) is in contact with the outer wall of the card block (8), and the card block (8) is engaged and connected inside the card groove (9).
4. The prefabricated shear wall vertical reinforcement fixing device according to claim 1, characterized in that: The inner walls on both sides of the main keel frame (1) are fixedly connected to fixing blocks (10), and the inside of the fixing blocks (10) is provided with through round holes. The inside of the fixing blocks (10) is rotatably connected to handles (11).
5. The prefabricated shear wall vertical reinforcement fixing device according to claim 1, characterized in that: The outer wall of the bolt (12) fits the shape of the inner wall of the threaded groove (14), and the bolt (12) is threaded inside the threaded groove (14).
6. The prefabricated shear wall vertical reinforcement fixing device according to claim 1, characterized in that: The main keel frame (1) is a rectangular frame, and the adjustable clip (2) is slidably connected to the front and rear crossbars of the main keel frame (1).