A collision-proof, human-protection pre-embedded hook
By setting a right-angle structure with a protective module on the pre-embedded hook for civil defense, the problem of easy damage to the pre-embedded hook during construction is solved, ensuring the stability and load-bearing capacity of the hook and improving construction safety.
Patent Information
- Application Number
- CN202521443630.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-31
- Estimated Expiration
- 2035-07-10
AI Technical Summary
After concrete pouring, the pre-embedded hooks in civil defense structures are susceptible to construction collisions, compression, or impacts from material stacking, which can cause them to tilt, bend, or break, affecting their load-bearing capacity and construction safety.
A protective module was designed, including a first corner bar and a second corner bar, which are clamped on both sides of the U-shaped lifting ring. The right-angle structure provides protection, prevents hook deformation, and enhances load-bearing capacity.
It effectively prevents the hook from tilting, bending or breaking, ensuring the stability and load-bearing capacity of the hook and improving construction safety.
Smart Images
Figure CN224578865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering construction technology, and in particular to a collision-proof, pre-embedded hook for civil defense. Background Technology
[0002] As an important component of national defense construction and urban protection systems, civil defense projects are of paramount importance in terms of structural safety and equipment installation reliability. Civil defense pre-embedded hooks, as key connecting components for equipment hoisting, are typically pre-embedded in the structure before concrete pouring for subsequent equipment hoisting and securing.
[0003] After concrete pouring, the embedded hooks, lacking effective protection, are susceptible to impacts from on-site construction collisions, compression, or material stacking, leading to hook tilting, bending, or even breakage. Such deformation directly reduces the hook's load-bearing capacity, increases the risk of detachment or breakage during hoisting, and threatens construction safety and the stability of subsequent equipment operation. Utility Model Content
[0004] The purpose of this utility model is to provide an anti-collision, human-proof, pre-embedded hook to solve the above-mentioned problems existing in the prior art.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0006] A collision-resistant pre-embedded hook for civil defense includes a pre-embedded hook body and a protective module. The protective module includes a first corner bar and a second corner bar. The horizontal hook of the pre-embedded hook body is welded inside the steel mesh of the concrete layer. The U-shaped lifting ring at the bottom of the pre-embedded hook body protrudes from the bottom of the concrete layer. The vertical plates of the first and second corner bars are detachably clamped on both sides of the U-shaped lifting ring, and the horizontal plates of the first and second corner bars abut against the bottom of the concrete layer.
[0007] The beneficial effects of this utility model are: when subjected to external impact, the right-angle structure of the first and second corner bars can play a protective role, preventing the civil defense pre-embedded hook body from tilting, bending or even breaking, thereby ensuring the overall load-bearing capacity of the civil defense pre-embedded hook body when in use.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, a horizontal insert is provided on the vertical plate of the second corner strip. The bottom outer arc surface of the insert matches the bottom inner arc surface of the U-shaped lifting ring. The length of the inner arc surface of the U-shaped lifting ring from the bottom surface of the concrete layer is equal to the length of the bottom outer arc surface of the insert from the top surface of the horizontal plate of the first and second corner strips. The vertical side of the first corner strip has a corresponding insertion hole for the insert.
[0010] The further beneficial effect of adopting the above is that when the insert block is inserted into the inner arc surface of the U-shaped lifting ring, the horizontal edges of the first and second corner strips abut against the bottom of the concrete layer.
[0011] Furthermore, the insert block and the second corner strip are integrally formed.
[0012] The further beneficial effects of adopting the above methods are: reducing production time and costs, while improving production accuracy. Attached Figure Description
[0013] Figure 1 This is a schematic diagram illustrating the use of an anti-collision, pre-embedded hook for human defense according to this utility model;
[0014] Figure 2 for Figure 1 Sectional view of section AA;
[0015] Figure 3 This is a schematic diagram of the structure of an anti-collision human defense pre-embedded hook according to the present invention. Figure 1 ;
[0016] Figure 4 This is a schematic diagram of the structure of an anti-collision human defense pre-embedded hook according to the present invention. Figure 2 .
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Civil defense pre-embedded hook body; 11. Horizontal hook; 12. U-shaped lifting ring; 2. Protective module; 21. First corner strip; 211. Insertion hole; 212. First threaded hole; 22. Second corner strip; 221. Insert block; 222. Second threaded hole; 23. Bolt; 3. Reinforcing bar; 4. Concrete layer; 41. Steel mesh. Detailed Implementation
[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0020] Example 1
[0021] like Figures 1 to 4 As shown, an anti-collision civil defense pre-embedded hook includes a civil defense pre-embedded hook body 1 and a protective module 2. The protective module 2 includes a first corner bar 21 and a second corner bar 22. The horizontal hook 11 of the civil defense pre-embedded hook body 1 is welded inside the steel mesh 41 of the concrete layer 4. The U-shaped lifting ring 12 at the bottom of the civil defense pre-embedded hook body 1 protrudes from the bottom of the concrete layer 4. The vertical plates of the first corner bar 21 and the second corner bar 22 are detachably clamped on both sides of the U-shaped lifting ring 12, and the horizontal plates of the first corner bar 21 and the second corner bar 22 abut against the bottom of the concrete layer 4.
[0022] When no equipment is mounted on the U-shaped lifting ring 12, the two sides of the U-shaped lifting ring 12 are clamped with a first corner bar 21 and a second corner bar 22, and the horizontal plates of the first corner bar 21 and the second corner bar 22 abut against the bottom of the concrete layer 4. When subjected to external impact, the right-angle structure of the first corner bar 21 and the second corner bar 22 can play a protective role, preventing the civil defense pre-embedded hook body 1 from tilting, bending or even breaking, thereby ensuring the overall load-bearing capacity of the civil defense pre-embedded hook body 1 when in use.
[0023] Example 2
[0024] like Figures 3 to 4 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:
[0025] A horizontal insert 221 is provided on the vertical plate of the second corner strip 22. The outer arc surface of the bottom of the insert 221 matches the inner arc surface of the bottom of the U-shaped lifting ring 12. The length of the inner arc surface of the U-shaped lifting ring 12 from the bottom surface of the concrete layer 4 is equal to the length of the outer arc surface of the bottom of the insert 221 from the upper surface of the horizontal plates of the first corner strip 21 and the second corner strip 22. The vertical side of the first corner strip 21 has an insertion hole 211 corresponding to the insert 221. When the insert 221 is inserted into the inner arc surface of the U-shaped lifting ring 12, the horizontal sides of the first corner strip 21 and the second corner strip 22 abut against the bottom of the concrete layer 4. In specific implementation, the insert 221 can be a U-shaped column (such as...). Figure 3 ) or cylinder (such as Figure 4 ).
[0026] Example 3
[0027] like Figures 1 to 4 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:
[0028] The insert 221 and the second corner strip 22 are integrally formed. This reduces production time and cost while improving production accuracy.
[0029] The first angle bar 21 and the second angle bar 22 have a first threaded hole 212 and a second threaded hole 222 respectively on their vertical edges, so that the first angle bar 21 and the second angle bar 22 are threadedly connected by bolts 23 passing through the first threaded holes 212 and the second threaded holes 222. The threaded connection is stable and easy to disassemble, and the first angle bar 21 and the second angle bar 22 can be quickly disassembled when the U-shaped lifting ring 12 needs to hang equipment.
[0030] Example 4
[0031] like Figure 1 As shown, this embodiment is a further improvement on any one of embodiments 1 to 3, as detailed below:
[0032] It also includes reinforcing ribs 3, which are fixedly connected between the two horizontal hooks 11 of the civil defense pre-embedded hook body 1. This improves the structural strength of the upper part of the civil defense pre-embedded hook body 1 and makes it less prone to deformation.
[0033] The reinforcing rib 3 is welded to the upper surface of the horizontal hook 11 on both sides. Double-sided welding increases the structural strength of the weld and avoids stress concentration problems that may occur with single-sided welding.
[0034] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.
Claims
1. An anti-collision civil air defense pre-buried lifting hook, characterized in that, The device includes a civil defense pre-embedded hook body (1) and a protective module (2). The protective module (2) includes a first corner strip (21) and a second corner strip (22). The horizontal hook (11) of the civil defense pre-embedded hook body (1) is welded inside the steel mesh (41) of the concrete layer (4). The U-shaped lifting ring (12) at the bottom of the civil defense pre-embedded hook body (1) protrudes from the bottom of the concrete layer (4). The vertical plates of the first corner strip (21) and the second corner strip (22) are detachably clamped on both sides of the U-shaped lifting ring (12), and the horizontal plates of the first corner strip (21) and the second corner strip (22) abut against the bottom of the concrete layer (4).
2. The anti-collision civil defense pre-buried lifting hook according to claim 1, characterized in that, A plug (221) is horizontally arranged on the vertical plate of the second corner strip (22). The bottom outer arc surface of the plug (221) matches the bottom inner arc surface of the U-shaped lifting ring (12). The length of the inner arc surface of the U-shaped lifting ring (12) from the bottom surface of the concrete layer (4) is equal to the length of the bottom outer arc surface of the plug (221) from the horizontal plate surface of the first corner strip (21) and the second corner strip (22). The vertical side of the first corner strip (21) is provided with a plug hole (211) corresponding to the plug (221).
3. The anti-collision civil defense pre-buried lifting hook according to claim 2, characterized in that, The insert (221) and the second corner strip (22) are integrally formed.
4. The anti-collision anti-personnel pre-buried lifting hook according to claim 1, characterized in that, The first corner strip (21) and the second corner strip (22) have a first threaded hole (212) and a second threaded hole (222) respectively on their vertical sides, so that the first corner strip (21) and the second corner strip (22) are threadedly connected by bolts (23) passing through the first threaded hole (212) and the second threaded hole (222).
5. The anti-collision anti-personnel pre-buried lifting hook according to claim 1, characterized in that, It also includes reinforcing bars (3), and the reinforcing bars (3) are fixedly connected between the two horizontal hooks (11) of the civil defense pre-embedded hook body (1).
6. The anti-collision anti-personnel pre-buried lifting hook according to claim 5, characterized in that, The two ends of the reinforcing rib (3) are welded to the upper surface of the horizontal hook (11) on both sides.