Edge hole protection clamp
By using a combination design of clamp body and guardrail, the problem of complicated erection and dismantling of protective structures at edges and openings is solved, realizing convenient and efficient installation and dismantling of guardrails, reducing construction costs and protecting the wall surface.
Patent Information
- Application Number
- CN202422098359.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In existing building construction, the erection and dismantling of protective structures at edges and openings are cumbersome and costly, and may damage the finished wall surface.
The edge opening protection clamp consists of a guardrail and a clamp body. The clamp body is composed of clamping legs, guardrail buckles, connecting shaft, support rod and locking screw. It can be easily installed and disassembled by rotating the locking nut and locking screw thread, and is clamped on the edge component.
It enables convenient and sturdy installation and dismantling of guardrails, reduces construction costs, does not damage the finished wall surface, and is simple and efficient to operate.
Smart Images

Figure CN223813935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction protection technology, and in particular to a protective clamp for edge openings. Background Technology
[0002] During the construction process, the edges and openings of the completed main structure need to be protected with protective devices to prevent falls. Currently, most conventional protective structures use steel pipes and supports, which usually require the erection of inclined bracing and ground-level bracing, and the use of multiple fasteners for reinforcement, which greatly increases the construction cost.
[0003] Chinese utility model patent CN219281335U discloses a safety guardrail for elevator shaft openings and adjacent openings. It includes a guardrail body, which is movably connected to a shear wall via a movable connector. The guardrail body comprises several detachably connected guardrail units. Each guardrail unit includes an upper connecting plate, a reinforcing plate, and a kick plate arranged parallel to each other from top to bottom. Each guardrail unit also includes several protective tubes, with both ends of each tube detachably connected to the upper connecting plate and the kick plate, and at least two of the protective tubes detachably connected to the reinforcing plate. This guardrail has a complex structure, is cumbersome to assemble and disassemble, and causes some damage to the wall surface during installation.
[0004] Therefore, there is a need to provide a protective clamp for edges and openings that can solve the problem of cumbersome assembly and disassembly of protective structures at edges and openings in the existing technology. Summary of the Invention
[0005] The purpose of this utility model is to provide a protective clamp for edges and openings, which can solve the problem of cumbersome assembly and disassembly of protective structures at edges and openings in the prior art.
[0006] This utility model is implemented as follows:
[0007] A protective clamp for an edge opening includes a guardrail and a pair of clamp bodies. Each clamp body includes clamping legs, a guardrail buckle, a connecting shaft, a support rod, a locking screw, and a locking nut. One end of the clamping leg is rotatably connected to the support rod via the connecting shaft. The pair of clamping legs are symmetrically arranged at both ends of the support rod, with the other ends of the pair of clamping legs located on the outdoor and indoor sides of the edge member at the edge opening side, respectively. Both ends of the locking screw pass through the pair of clamping legs. One end of the locking screw overlaps one of the clamping legs, and one end of the guardrail buckle is sleeved on the other end of the locking screw. The other end of the locking screw and one end of the guardrail buckle are locked to the other clamping leg via the locking nut, so that the pair of clamping legs are clamped onto the edge member. The guardrail is installed between the two sets of clamp bodies located at both ends of the edge opening.
[0008] The clamping legs include a leg body and a support link; one end of the two leg bodies is connected in a V shape and connected to the end of the support link through a connecting shaft, and the other end of the two leg bodies can be pressed against the edge member; the support link is connected between the two leg bodies to form an A-shaped clamping leg.
[0009] The other end of the two support legs is bent into an arc structure, and the other end of the support legs that hold the support legs is bent towards the surface of the edge component.
[0010] One end of the locking screw is bent vertically to form an overlapping part, which abuts against the support link of one of the legs.
[0011] The other end of the guardrail buckle is bent into an arc shape, so that a guardrail insertion gap is formed between the other end of the guardrail buckle and the support rod of another clamping leg, and the guardrail passes through the insertion gap.
[0012] The support link has a through hole in the middle, the diameter of which is larger than the diameter of the locking screw, so that the locking screw passes through the support link through the through hole.
[0013] Compared with the prior art, this utility model has the following advantages:
[0014] 1. This utility model has a protective railing and a pair of clamping bodies. The pair of clamping bodies are symmetrically clamped on the edge components on both sides of the edge and opening. The protective railing passes between the pair of clamping bodies and spans across the edge and opening, so as to play a protective role. The clamping, installation and disassembly of the pair of clamping bodies are convenient. There is no need to set up diagonal bracing or sweeping bars, and it will not cause damage to the surface of the components.
[0015] 2. This utility model features a clamp body. The screw rotation between the locking nut and the locking screw causes a pair of clamping legs to rotate around the connecting shaft and approach and clamp onto the edge component. At the same time, the guardrail buckle is locked onto the clamping legs and presses the guardrail firmly. A single locking nut simultaneously completes the clamping of the clamp body onto the edge component and the installation and fixation of the guardrail. The operation is simple and efficient, the installation is firm and reliable, the disassembly and assembly are convenient, the structure is simple, the number of parts is small, and the cost is low. Attached Figure Description
[0016] Figure 1 This is a perspective view of the edge protection clamp of this utility model;
[0017] Figure 2 This is an installation diagram of the edge protection clamp of this utility model;
[0018] Figure 3 This is a perspective view of the main body of the clamp in the edge protection clamp of this utility model;
[0019] Figure 4 This is a folding diagram of the main body of the clamp in the edge protection clamp of this utility model.
[0020] In the diagram, 1 is the clamping leg, 101 is the leg body, 102 is the supporting connecting rod, 2 is the guardrail buckle, 3 is the connecting shaft, 4 is the support rod, 5 is the locking screw, 501 is the overlapping part, 6 is the locking nut, and 7 is the guardrail. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] Please see the appendix Figure 1 To be continued Figure 4 A protective clamp for edge openings includes a protective railing 7 and a pair of clamp bodies. Each clamp body includes clamping legs 1, a protective railing buckle 2, a connecting shaft 3, a support rod 4, a locking screw 5, and a locking nut 6. One end of the clamping leg 1 is rotatably connected to the support rod 4 via the connecting shaft 3. The pair of clamping legs 1 are symmetrically arranged at both ends of the support rod 4, with the other ends of the pair of clamping legs 1 located on the outdoor and indoor sides of the edge member at the edge opening side, respectively. Both ends of the locking screw 5 pass through the pair of clamping legs 1. One end of the locking screw 5 overlaps one of the clamping legs 1, and one end of the protective railing buckle 2 is sleeved on the other end of the locking screw 5. The other end of the locking screw 5 and one end of the protective railing buckle 2 are locked to the other clamping leg 1 via the locking nut 6, so that the pair of clamping legs 1 are clamped onto the edge member. The protective railing 7 is installed between the two sets of clamp bodies located at both ends of the edge opening.
[0023] A pair of clamp bodies are symmetrically installed on the edge components (usually walls) at the edges and both sides of the opening, for the installation of guardrails 7. The following is an example of a set of clamp bodies: A pair of clamping legs 1 are clamped on the outdoor and indoor sides of the edge component. When the locking screw 5 and the locking nut 6 are tightened by screwing, the pair of clamping legs 1 can clamp the edge component and will not fall off, ensuring a firm installation. At the same time, the guardrail buckle 2 can press and fix the guardrail 7 to one of the clamping legs 1.
[0024] To improve operational safety, guardrail 7 can be placed on the indoor side of the edge or opening.
[0025] The connecting shaft 3 facilitates the connection between the clamping leg 1 and the support rod 4, and enables the clamping leg 1 to rotate so as to adjust the distance between a pair of clamping legs 1. This not only adapts to walls of different thicknesses, but also ensures the clamping body is clamped and installed on the wall. At the same time, the clamping leg 1 can be folded by rotation to reduce its size and facilitate storage, carrying and transportation.
[0026] Please see the appendix Figure 3 and attached Figure 4 The clamping leg 1 includes a leg body 101 and a support link 102; one end of the two leg bodies 101 is connected in a V shape and connected to the end of the support rod 4 through a connecting shaft 3, and the other end of the two leg bodies 101 can be pressed against the edge member; the support link 102 is connected between the two leg bodies 101 to form an A-shaped clamping leg 1.
[0027] The other end of a pair of support legs 101 can abut against the surface of the edge component, and the other end of the four support legs 101 provides four symmetrical fixed clamping points to ensure that the clamping body is stably and firmly clamped on the edge component.
[0028] The support link 102 can improve the structural strength of the clamping leg 1 and also facilitate the installation of the locking screw 5.
[0029] Please see the appendix Figure 3 and attached Figure 4 The other end of the two support legs 101 is bent into an arc structure, and the other end of the pair of support legs 1 clamping the support legs 1 is bent towards the surface of the edge member.
[0030] The curved segment at the other end of the outrigger body 101 provides vertical pressure to the edge member, thereby improving the clamping stability of the outrigger body 101 on the edge member.
[0031] Please see the appendix Figure 4 One end of the locking screw 5 is bent vertically to form an overlapping part 501, so that the overlapping part 501 abuts against the support connecting rod 102 of one of the support legs 101.
[0032] The overlapping part 501 can overlap the support connecting rod 102, so that one end of the locking screw 5 will not come off the support connecting rod 102 of one of the legs body 101. Preferably, a through hole slightly larger than the diameter of the locking screw 5 is reserved in the support connecting rod 102, so as to facilitate the insertion of the locking screw 5 and also ensure the reliability of the overlapping part 501 on the support connecting rod 102.
[0033] Please see the appendix Figure 3 The other end of the guardrail buckle 2 is bent into an arc shape, so that a guardrail insertion gap is formed between the other end of the guardrail buckle 2 and the support rod 102 of the other clamping leg 1, and the guardrail 7 passes through the insertion gap.
[0034] The arc-shaped structure of the guardrail buckle 2 can be adapted to the size of the guardrail 7, so as to facilitate the installation of the guardrail 7 in the gap and to press the guardrail 7 tightly on the support rod 102, preventing the guardrail 7 from slipping and falling off, so as to ensure the protective effect.
[0035] One end of the guardrail buckle 2 is flat and has a through hole slightly larger than the diameter of the locking screw 5, so that the guardrail buckle 2 can be easily fitted onto the locking screw 5 without falling off.
[0036] The support link 102 has a through hole (not shown in the figure) in the middle. The diameter of the through hole is larger than the diameter of the locking screw 5, so that the locking screw 5 passes through the through hole and penetrates the support link 102.
[0037] Since the clamping leg 1 has a rotating function, the angle between the locking screw 5 and the clamping leg 1 changes slightly. Therefore, a slightly larger diameter through hole is used to meet the rotation requirements of the clamping leg 1 relative to the locking screw 5. At the same time, this through hole should be smaller than the outer diameter of the locking nut 6 to ensure the locking function of the locking nut 6 on the locking screw 5.
[0038] Please see the appendix Figure 1 To be continued Figure 4 The manufacturing and assembly / disassembly method of this utility model is as follows:
[0039] When setting up edge and opening protection at the construction site, first select a round steel pipe corresponding to the size of the edge or opening as the guardrail 7, and select a square steel pipe with a length slightly greater than the wall thickness at the edge or opening as the support rod 4. Then, connect one end of a pair of clamping legs 1 to both ends of the support rod 4 by means of a connecting shaft 3.
[0040] During installation, place the other ends of the pair of clamping legs 1 on the indoor and outdoor sides of the wall at the edge of the opening, respectively. The curved section of the clamping legs 1 is used to initially clamp and position the wall. Then, attach one end of the guardrail buckle 2 to the locking screw 5, and screw a locking nut 6 onto the locking screw 5 to prevent the guardrail buckle 2 from falling off.
[0041] The main installation method of the clamps on the walls at the edges of the edges and openings is the same, and the installation direction is symmetrical, so it will not be described in detail here.
[0042] The two ends of the guardrail 7 are respectively inserted through the gaps between the two sets of clamp bodies, and the locking nuts 6 are screwed in, so that the locking nuts 6 press the guardrail buckles 2, thereby locking the guardrail 7 between the support connecting rod 102 and the arc-shaped structure of the guardrail buckles 2, preventing slippage and loosening. At the same time, a pair of clamping legs 1 rotate around the connecting pivot 3 in a direction that brings them closer to each other, ensuring that the curved sections of the arc-shaped structures of the four leg bodies 101 are symmetrically pressed against the inner and outer walls of the wall.
[0043] The locking methods for both ends of the guardrail 7 and the two sets of clamps are the same, and will not be described in detail here. After locking, the guardrail 7 spans across the edge and opening, serving a protective function. The appropriate number and spacing of guardrails 7 can be installed according to the required protection height.
[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. A protective clamp for openings near edges, characterized in that: It includes a guardrail (7) and a pair of clamp bodies. Each clamp body includes a clamping leg (1), a guardrail buckle (2), a connecting shaft (3), a support rod (4), a locking screw (5), and a locking nut (6). One end of the clamping leg (1) is rotatably connected to the support rod (4) through the connecting shaft (3). The pair of clamping legs (1) are symmetrically arranged at both ends of the support rod (4), so that the other ends of the pair of clamping legs (1) are located on the outdoor side and indoor side of the edge component at the side end of the opening. A pair of clamping legs (1) pass through both ends of the rod (5). One end of the locking screw (5) is attached to one of the clamping legs (1). One end of the guardrail buckle (2) is sleeved on the other end of the locking screw (5). The other end of the locking screw (5) and one end of the guardrail buckle (2) are locked to the other clamping leg (1) by the locking nut (6), so that a pair of clamping legs (1) are clamped on the edge member, and the guardrail (7) is installed between the two sets of clamp bodies located at both ends of the edge opening.
2. The edge protection clamp according to claim 1, characterized in that: The clamping leg (1) includes a leg body (101) and a support link (102); one end of the two leg bodies (101) is connected in a V shape and connected to the end of the support rod (4) through a connecting shaft (3); the other end of the two leg bodies (101) can be pressed against the edge member; the support link (102) is connected between the two leg bodies (101) to form an A-shaped clamping leg (1).
3. The edge protection clamp according to claim 2, characterized in that: The other end of the two support legs (101) is bent into an arc shape, and the other end of the support legs (1) that hold the support legs (1) is bent towards the surface of the edge member.
4. The edge opening protection clamp according to claim 2, characterized in that: One end of the locking screw (5) is bent vertically to form an overlapping part (501), so that the overlapping part (501) abuts against the support link (102) of one of the support legs (101).
5. The edge protection clamp according to claim 2, characterized in that: The other end of the guardrail buckle (2) is bent into an arc shape, so that the other end of the guardrail buckle (2) and the support rod (102) of another clamping leg (1) form a guardrail insertion gap, and the guardrail (7) passes through the insertion gap.
6. The edge opening protection clamp according to claim 5, characterized in that: The support link (102) has a through hole in the middle, and the diameter of the through hole is larger than the diameter of the locking screw (5), so that the locking screw (5) passes through the through hole and penetrates the support link (102).