A retractable edge protection device

Abstract

This utility model discloses a retractable edge protection device, including an adjustable-length protective body and a non-damaging fixing mechanism. The adjustable-length protective body spans the opening and provides support and protection. The non-damaging fixing mechanism is located at both ends of the protective body for connection to the wall. The protective body can be quickly installed and disassembled through the non-damaging fixing mechanism, and the fixing process does not damage the wall structure. It has a reliable structure and good performance. Through the coordinated design of the adjustable protective body and the non-damaging fixing mechanism, this device can adapt to openings of different sizes, forming reliable support and protection without damaging the structural wall. It is easy to operate, easy to install and disassemble, and has a high reusability rate.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a retractable edge protection device. Background Technology

[0002] Due to the nature of the renovation projects, there are a large number of old window openings with insufficient protection. Most of the buildings are old residential buildings with staircases, which cannot be transported by machinery and are difficult to transport manually. At present, the edge protection devices on the market are generally standardized guardrails fixed with expansion bolts, which have problems such as heavy weight, high manual transportation costs, expansion bolts easily damaging old walls, and difficulty in adapting to old openings of different sizes.

[0003] In existing technologies, screws and steel washers are mostly used for fixing in order to carry out protective operations. However, the standardized protective netting used is difficult to adapt to the existing openings of different sizes on site, and it is also relatively bulky, difficult to transport, and inconvenient, making it difficult to meet the needs of rapid construction. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a retractable edge protection device.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A retractable edge protection device, characterized in that it includes: An adjustable-length protective body is used to span the opening and provide support and protection; The non-damaging fixing mechanism is located at both ends of the protective body for connection with the wall. The protective body can be quickly installed and disassembled through the non-damaging fixing mechanism, and the fixing process does not damage the wall structure. The non-destructive fixation mechanism includes: A fixed base is connected to the end of the protective body; Hook-type anchors, which work together with the fixing base and the wall to form a hole-free fixing.

[0006] Furthermore, the protective body is a nested telescopic structure, consisting of at least two interlocking pipe sections, with locking elements between adjacent pipe sections for adjusting and fixing the telescopic length.

[0007] Furthermore, the protective body includes an outer rod and inner rods respectively disposed at both ends of the outer rod and sliding along the internal cavity of the outer rod. The fixing base is disposed at the end of the inner rod away from the outer rod, and the locking element is disposed at the junction of the outer rod and the inner rod.

[0008] Furthermore, the protective body includes a drive sleeve and driven support rods threaded to both ends of the drive sleeve. The drive sleeve rotates to drive the driven support rods to extend and retract in the opposite direction.

[0009] Furthermore, the fixed base includes a base body and a fixing cavity formed on the base body for connection with the wall. The base body has a threaded hole, and a right-angle hook screw is fitted into the threaded hole.

[0010] Furthermore, the hook-type anchor includes a right-angle hook screw, the hook end of which forms a self-locking structure with the wall contact surface.

[0011] Furthermore, a washer is provided at one end of the right-angle hook screw, and an operating handle is provided at the other end.

[0012] The present invention has the following advantages: The retractable edge protection device provided by the present invention has a reliable structure and good performance. Through the coordinated design of the adjustable protective body and the non-damaging fixing mechanism, the device can adapt to openings of different sizes, achieve reliable support and protection, and does not damage the structural wall. It is easy to operate, easy to install and disassemble, and has a high reusability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the protective main body (structure one) in this utility model; Figure 3 This is a schematic diagram of the protective main body (structure two) in this utility model; Figure 4 This is a schematic diagram of the non-destructive fixing mechanism in this utility model; Figures 1 to 4 The reference numerals in the attached drawings are respectively: 1-protective body, 2-non-damaging fixing mechanism, 20-fixed base, 21-hook-type anchor, 22-waist, 23-operating handle, 10-outer rod, 11-inner rod, 12-locking element, 13-drive tube sleeve, 14-driven support rod, 200-base body, 201-fixed cavity. Detailed Implementation

[0014] 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.

[0015] like Figure 1 As shown, a retractable edge protection device includes an adjustable-length protective body 1 and a non-damaging fixing mechanism 2. The adjustable-length protective body 1 is used to span the opening and provide support and protection. The non-damaging fixing mechanism 2 is respectively set at both ends of the protective body 1 for connection with the wall. The protective body 1 can be quickly installed and disassembled through the non-damaging fixing mechanism 2, and the fixing process does not damage the wall structure.

[0016] The main protective structure 1 serves as the primary load-bearing structure, providing a rigid protective barrier. Its length can be adjusted by telescoping to accommodate openings of different widths, such as window openings or edge gaps of varying sizes in renovated buildings.

[0017] In this embodiment, preferably, the protective body 1 can adopt two structures: one is a nested telescopic structure, which consists of at least two interlocking pipe sections, with locking elements between adjacent pipe sections for adjusting and fixing the telescopic length; the other is an adjustment of the telescopic length by rotating a thread.

[0018] Among them, such as Figure 2 As shown, for the first structure, specifically, the protective body 1 includes an outer rod 10 and inner rods 11 respectively disposed at both ends of the outer rod 10 and sliding along the internal cavity of the outer rod 10. A fixing base 20 is disposed at the end of the inner rod 11 away from the outer rod 10, and a locking member 12 is disposed at the junction of the outer rod 10 and the inner rod 11. The locking member 12 is a bolt or screw. Depending on the usage requirements, the inner rod 11 is extended or retracted along the outer rod 10 to adjust the overall length. Adjustment can be made in two directions or in one direction only. Once the extension / retraction length is fixed, the locking member 12 locks the inner rod 11 and the outer rod 10, thus fixing their positions. The outer rod 10 has bolt holes; the locking member 12 is screwed into these bolt holes to lock the position of the inner rod 11.

[0019] like Figure 3 As shown, for the second structure, specifically, the protective body 1 includes a drive sleeve 13 and driven support rods 14 threadedly engaged at both ends of the drive sleeve 13. Rotation of the drive sleeve 13 drives the driven support rods 14 to extend and retract in opposite directions. The inner walls at both ends of the drive sleeve have internally threaded sections with opposite directions of rotation, and the outer walls at both ends of the driven support rods 14 have externally threaded sections that engage with the threaded sections on the drive sleeve. Rotation of the drive sleeve 13 causes the driven support rods 14 at both ends to extend and retract simultaneously in opposite directions, thereby adjusting the length of the protective body 1.

[0020] Based on the above schemes, the difference between the first and second structures is that the first nested telescopic structure can be adjusted individually or simultaneously, while the second threaded rotary structure can be adjusted synchronously, and the threaded connection provides higher stability.

[0021] In addition, such as Figure 4 As shown, in this embodiment, the non-destructive fixing mechanism 2 includes a fixing base 20 and a hook-type anchor 21. The fixing base 20 is connected to the end of the protective body 1, and the hook-type anchor 21 cooperates with the fixing base 20 and the wall to form a hole-free fixing. The hook-type anchor 21 is a right-angle hook screw, and its hook end forms a self-locking structure with the contact surface with the wall. The hook end hooks onto the edge of the wall, and a self-locking effect is formed by lever principle, eliminating the need for drilling or expansion bolts.

[0022] The fixing base 20 includes a base body 200 and a fixing cavity 201 formed on the base body 200 for connection with the wall. The base body 200 has a threaded hole into which a right-angle hook screw fits. The base body 200, as the core carrier of the fixing base 20, connects the protective body 1 and the right-angle hook screw, bearing the load of the protective device. The fixing cavity 201 provides a connection channel with the wall, and is then locked by the right-angle hook screw. The fixing cavity 201 is a groove or cavity structure, used to fit against the edge of the wall, such as a windowsill or beam, increasing the contact area and improving fixing stability. The threaded hole provides a screw-in channel for the right-angle hook screw, achieving axial fixing of the screw through threaded engagement. By tightening the screw, the pressure between the hook end and the wall can be adjusted, enhancing the anchoring force and transferring the force borne by the protective body 1 to the wall through the screw, avoiding localized stress concentration.

[0023] In addition, a washer 22 is provided at one end of the right-angle hook screw, and an operating handle 23 is provided at the other end. The washer 22 increases the contact area between the hook and the wall, preventing excessive local pressure from damaging the wall surface. At the same time, the surface of the washer 22 can be designed with anti-slip texture or an additional rubber layer to enhance friction with the wall and prevent slippage after anchoring. The operating handle 23 provides a force-saving lever, allowing the screw to be screwed in / out without additional tools, significantly improving loading and unloading efficiency. The force applied can be adjusted by the length of the handle to avoid over-tightening that could deform the wall or the screw.

[0024] 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 retractable edge guard characterized by, include: An adjustable-length protective body (1) is used to span the opening and provide support and protection; The non-damaging fixing mechanism (2) is respectively set at both ends of the protective body (1) for connecting with the wall; the protective body (1) can be quickly installed and disassembled through the non-damaging fixing mechanism (2), and the fixing process does not damage the wall structure; The non-destructive fixation mechanism (2) includes: A fixed base (20) is connected to the end of the protective body (1); The hook-type anchor (21) cooperates with the fixing base (20) and the wall to form a hole-free fixing.

2. The retractable edge guard of claim 1, wherein, The protective body (1) is a nested telescopic structure, consisting of at least two interlocking pipe sections, with locking elements between adjacent pipe sections for adjusting and fixing the telescopic length.

3. The retractable edge guard of claim 2, wherein, The protective body (1) includes an outer rod (10) and an inner rod (11) respectively disposed at both ends of the outer rod (10) and sliding along the internal cavity of the outer rod (10). The fixed base (20) is disposed at the end of the inner rod (11) away from the outer rod (10). A locking member (12) is provided at the junction of the outer rod (10) and the inner rod (11) to lock the position of the inner rod (11) inside the outer rod (10).

4. The retractable edge guard of claim 1, wherein, The protective body (1) includes a drive sleeve (13) and driven support rods (14) threaded to both ends of the drive sleeve (13). The drive sleeve (13) rotates to drive the driven support rods (14) to extend and retract in the opposite direction.

5. The retractable edge guard of claim 1, wherein, The fixed base (20) includes a base body (200) and a fixing cavity (201) opened on the base body (200) for connection with the wall. The base body (200) has a threaded hole, and the hook-type anchor (21) fits into the threaded hole.

6. The retractable edge guard of claim 5, wherein, The hook-type anchor (21) is a right-angle hook screw, and its hook end forms a self-locking structure with the wall contact surface.

7. The retractable edge guard of claim 6, wherein, One end of the right-angle hook screw is provided with a washer (22), and the other end is provided with an operating handle (23).

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