Fixing bolt bar
By installing mounting grooves and through grooves in the retaining wall base with fixing bolt rods, and using a combination of hooks, detachable clips and nuts, the problem of the retaining wall base being tilted and difficult to support formwork was solved, achieving a stable connection between the formwork and the wall base and avoiding the phenomenon of formwork bursting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU NO 1 CONSTR ENG
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-01
AI Technical Summary
The existing retaining wall has an inclined base, making it difficult to support the formwork. This makes it difficult to fix the formwork with bolts, which can easily cause the formwork to burst.
A fixed bolt rod was designed, which includes an installation groove and a through groove in the foot of the retaining wall. The bolt rod is connected to the fixing ring by a hook and is fastened by a detachable buckle and nut to increase the contact area and improve stability.
It effectively connects the formwork and the retaining wall base, improves the stability of the formwork, and reduces the occurrence of formwork bursting.
Smart Images

Figure CN224186802U_ABST
Abstract
Description
A type of fixing bolt rod Technical Field
[0001] This utility model relates to the field of bolt technology, specifically to a fixing bolt rod. Background Technology
[0002] In the process of building wall formwork, fasteners are needed to fix it. Bolts are mechanical parts, which are cylindrical threaded fasteners with nuts. Therefore, workers often use bolts to fix the wall formwork.
[0003] A known Chinese patent (application number: CN202322885717.6) discloses a unidirectional fixing bolt rod, including a bolt body, a connecting frame, and a concave frame. A nut is threaded onto the outer surface of the bolt body. Connecting springs are fixedly installed on the inner walls of both the connecting frame and the concave frame. Clamping seats are fixedly installed at the ends of the two connecting springs that are close to each other. Two connecting blocks are fixedly installed on the front of the concave frame. Two compression springs are fixedly installed on the inner wall of the connecting frame. Limiting blocks are fixedly installed at the ends of the two compression springs that are close to each other. Connecting shafts are fixedly installed on the sides of the two limiting blocks that are far apart from each other. Adhesive plates are provided on the left side of both the connecting frame and the left side of the concave frame. This utility model, comprising the bolt body, connecting frame, concave frame, connecting spring, clamping seat, connecting block, compression spring, limiting block, connecting shaft, and adhesive plate, facilitates bolt installation for workers, thereby reducing the number of workers required for bolt installation.
[0004] However, in implementing the relevant technology, the above-mentioned one-way fixed bolt rod has the following problems: because the existing retaining wall foot is inclined and it is not easy to support the formwork, the bolt rod is difficult to fix the formwork, which can easily cause the formwork to burst. Therefore, a fixed bolt rod is proposed. Summary of the Invention
[0005] This utility model proposes a fixing bolt rod, which solves the problem in related technologies that the existing retaining wall base is inclined and difficult to support the formwork, making it difficult to fix the formwork with bolt rods and easily causing the formwork to burst.
[0006] The technical solution of this utility model is as follows: a fixing bolt rod, comprising: a retaining wall foot;
[0007] Multiple mounting slots are formed inside the retaining wall base, and fixing rings are fixedly installed inside the multiple mounting slots. Multiple through slots are formed on one side of the retaining wall base, and the multiple through slots are connected to the multiple mounting slots.
[0008] A bolt rod is disposed inside the plurality of through slots. A hook is fixedly connected to the bottom end of the bolt rod, and the hook is engaged with the fixing ring. A detachable buckle is provided at the top end of the bolt rod. A nut is threadedly connected to the outer side wall of the bolt rod, and the nut is located above the detachable buckle.
[0009] Preferably, the detachable buckle is composed of two arc-shaped plates, one of which is fixedly mounted with an insert plate, and the other of which has a slot, wherein the insert plate is inserted into the slot.
[0010] Preferably, a gasket is provided above the detachable buckle, and the gasket is located between the detachable buckle and the nut.
[0011] Preferably, the outer wall of the bolt rod is coated with an anti-corrosion coating, specifically a Dacromet coating.
[0012] Preferably, the outer wall of the anti-corrosion coating away from the bolt is coated with an anti-rust coating, specifically a water-based inorganic zinc-rich anti-rust coating.
[0013] Preferably, the hook is made of stainless steel, and the surface of the hook is roughened by sandblasting or etching for anti-slip purposes.
[0014] The working principle and beneficial effects of this utility model are as follows:
[0015] During installation, the bolt rod is inserted into the through groove, and the hook on the bolt rod passes through the inner ring of the fixing ring. After passing through, the bolt rod is pulled outward to engage the hook with the fixing ring. Then, a detachable clip is installed on the outside of the bolt rod. The nut is screwed onto the bolt rod, which abuts against the detachable clip. The detachable clip increases the contact area between the nut and the retaining wall foot, making the nut more securely installed on the bolt rod. This effectively connects the formwork and the retaining wall foot, improves the stability of the formwork, and reduces the risk of formwork bursting at the retaining wall foot. Attached Figure Description
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 is a schematic diagram of the overall three-dimensional structure proposed in this utility model;
[0018] Figure 2 is a three-dimensional cross-sectional view of the retaining wall foot structure proposed in this utility model.
[0019] Figure 3 is an enlarged three-dimensional structural diagram of point A in Figure 1 proposed by this utility model;
[0020] Figure 4 is a partial three-dimensional structural diagram of the bolt rod proposed in this utility model;
[0021] Figure 5 is a schematic diagram of the planar structure of the bolt rod proposed in this utility model;
[0022] Figure 6 is a cross-sectional perspective view of the three-dimensional structure of the detachable buckle proposed in this utility model.
[0023] In the diagram: 1. Retaining wall foot; 2. Installation groove; 3. Through groove; 4. Fixing ring; 5. Bolt rod; 6. Removable buckle; 7. Nut; 8. Insert plate; 9. Slot; 10. Washer; 11. Hook; 12. Anti-corrosion coating; 13. Anti-rust coating. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0025] Please refer to Figures 1-6. A fixing bolt rod includes: retaining wall foot 1;
[0026] Multiple mounting slots 2 are formed inside the retaining wall foot 1, and fixing rings 4 are fixedly installed inside the multiple mounting slots 2. Multiple through slots 3 are formed on one side of the retaining wall foot 1, and the multiple through slots 3 are connected to the multiple mounting slots 2.
[0027] Bolt rods 5 are installed inside multiple through slots 3. The bottom end of the bolt rods 5 is fixedly connected to hooks 11, which are connected to the fixing rings 4. The top end of the bolt rods 5 is provided with detachable buckles 6. Nuts 7 are threadedly connected to the outer side wall of the bolt rods 5, and the nuts 7 are located above the detachable buckles 6.
[0028] The technical solution provided by this utility model is as follows: During installation, the bolt rod 5 is inserted into the through groove 3, and the hook 11 on the bolt rod 5 passes through the inner ring of the fixing ring 4. After passing through, the bolt rod 5 is pulled outward to make the hook 11 engage with the fixing ring 4. Then, a detachable buckle 6 is installed on the outside of the bolt rod 5, and the nut 7 is screwed onto the bolt rod 5 to abut against the detachable buckle 6. The detachable buckle 6 increases the contact area between the nut 7 and the retaining wall foot 1, thereby making the nut 7 more securely installed on the bolt rod 5. Thus, the formwork and the retaining wall foot 1 are effectively connected, improving the stability of the formwork and reducing the risk of formwork bursting at the retaining wall foot 1.
[0029] Furthermore, the detachable buckle 6 consists of two arc-shaped plates, one of which is fixedly fitted with an insert plate 8, and the other of which has a slot 9, with the insert plate 8 and the slot 9 being inserted into each other.
[0030] Specifically, when installing the detachable buckle 6, the two arc-shaped plates are joined together, and the insert plate 8 is inserted into the slot 9 for fixation, thereby achieving the purpose of installing and fixing the detachable buckle 6.
[0031] Furthermore, a washer 10 is provided above the detachable buckle 6, and the washer 10 is located between the detachable buckle 6 and the nut 7.
[0032] Specifically, by increasing the contact area between the nut 7 and the detachable buckle 6 through the washer 10, the preload is evenly distributed, local stress concentration is reduced, surface crushing or deformation is avoided, and the overall reliability of the connection is improved.
[0033] Furthermore, the outer wall of the bolt rod 5 is coated with an anti-corrosion coating 12, specifically a Dacromet coating. The outer wall of the anti-corrosion coating 12 away from the bolt rod 5 is coated with an anti-rust coating 13, specifically a water-based inorganic zinc-rich anti-rust coating.
[0034] Specifically, the anti-corrosion coating 12 and the anti-rust coating 13 can form a protective film to prevent the bolt rod 5 from coming into contact with corrosive substances such as oxygen and water, thereby extending the service life of the bolt rod 5.
[0035] Furthermore, the hook 11 is made of stainless steel, and the surface of the hook 11 is roughened by sandblasting or etching for anti-slip purposes.
[0036] Specifically, by sandblasting or etching the surface of the hook 11 to form a rough surface, the friction between the hook 11 and the fixing ring 4 is increased when the hook 11 is engaged with the fixing ring 4, thus preventing slippage.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A fixing bolt rod, characterized in that, include: Retaining wall foot (1); multiple mounting slots (2) are opened inside the retaining wall foot (1), and fixing rings (4) are fixedly installed inside the multiple mounting slots (2). Multiple through slots (3) are opened on one side of the retaining wall foot (1), and the multiple through slots (3) are connected to the multiple mounting slots (2); bolt rods (5) are set inside the multiple through slots (3), and hooks (11) are fixedly connected to the bottom end of the bolt rods (5). The hooks (11) are hooked to the fixing rings (4). A detachable buckle (6) is provided at the top end of the bolt rods (5). A nut (7) is threadedly connected to the outer wall of the bolt rods (5). The nut (7) is located above the detachable buckle (6).
2. A fixing bolt rod according to claim 1, characterized in that: The detachable buckle (6) consists of two arc-shaped plates, one of which is fixedly fitted with a insert plate (8), and the other of which is provided with a slot (9). The insert plate (8) and the slot (9) are inserted into each other.
3. A fixing bolt rod according to claim 1, characterized in that: A gasket (10) is provided above the detachable buckle (6), and the gasket (10) is located between the detachable buckle (6) and the nut (7).
4. A fixing bolt rod according to claim 1, characterized in that: The outer wall of the bolt rod (5) is coated with an anti-corrosion coating (12), which is specifically a Dacromet coating.
5. A fixing bolt rod according to claim 4, characterized in that: The anti-corrosion coating (12) is coated with an anti-rust coating (13) on the outer wall away from the bolt rod (5), and the anti-rust coating (13) is specifically a water-based inorganic zinc-rich anti-rust coating.
6. A fixing bolt rod according to claim 1, characterized in that: The hook (11) is made of stainless steel, and the surface of the hook (11) is roughened by sandblasting or etching for anti-slip purposes.
Citation Information
Patent Citations
One-way fixing bolt bar
CN221372906U