Protective device for engineering construction
By introducing the sliding structure of the slider and the slide rail and the reset function of the spring into the protective device, the problems of insufficient adaptability and dynamic linkage of the guardrail at the construction site are solved, multi-directional protection and automatic reset are achieved, and the safety of construction workers and the convenience of operation are improved.
Patent Information
- Application Number
- CN202521658137.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2035-08-06
AI Technical Summary
The existing guardrails lack adaptability and dynamic linkage at construction sites, and cannot effectively respond to the different operating postures of construction workers and unexpected external force impacts, affecting the sustainability and reliability of the protective effect.
A protective device for engineering construction is designed, which includes a guardrail body, side panels, handrails, heel panels, built-in guard frames, sliders, slide rails, springs and push forks. Through the sliding structure of the sliders and slide rails and the reset function of the springs, multi-directional protection and automatic reset are achieved, thereby enhancing the operational convenience and stability of the device.
It achieves multi-faceted protection, reduces safety risks for construction workers during operation, simplifies operating steps, improves the safety and functionality of the device, and ensures continuous and reliable protection performance.
Smart Images

Figure CN223410529U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of engineering construction, in particular to a protective device for engineering construction. Background Art
[0002] In the construction industry, guardrails are crucial for ensuring the safety of construction workers and preventing accidents like falls. They are widely used in various construction scenarios. However, in practice, general-purpose guardrails suffer from limited protective functionality and poor adaptability to complex construction conditions. They struggle to effectively handle the diverse operating postures of construction workers and unexpected external impacts, and they offer no comprehensive and dynamic guarantee of worker safety. Furthermore, they suffer from deficiencies in structural repositioning and component coordination stability, impacting the sustainability and reliability of protective effectiveness.
[0003] Publication No. CN218061807U, a construction protection device for construction projects, utilizes a protective frame with anti-slip pads installed at the bottom to enhance stability. A water storage tank is located on the back, a smoke generator and an audible and visual alarm are installed at the top, and a sprinkler is installed on the front. When a vehicle strikes the protective sliding plate, the surface pads and buffer springs cushion the impact. This impact also pushes the connecting rod and piston, causing water in the water storage tank to be sprayed out of the sprinkler through a transmission pipe to cool the device. This device aims to enhance protection capabilities through passive protection (impact cushioning), active warning (smoke generator, audible and visual alarm), and auxiliary measures (water spraying for cooling).
[0004] However, insufficient consideration is given to the construction workers' own safety protection and device adaptability when their bodies move and apply force during daily operations, and a dynamically linked protective structure is not designed to meet the construction workers' physical protection needs.
[0005] Therefore, a protective device for engineering construction is proposed to solve the above-mentioned problems. Utility Model Content
[0006] In view of the deficiencies in the prior art, the present invention provides a protective device for engineering construction, which can solve the problems raised by the above-mentioned background technology.
[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a protective device for engineering construction, comprising a guardrail body, a side panel provided on the back of the guardrail body, a handrail provided on one side of the side panel, a heel plate provided near the lower end of the handrail body, a body frame provided on both sides of the heel plate, and a built-in guard frame provided on the front of the heel plate;
[0008] A slider is provided on one side of the bottom end of the body frame, a slide rail is laterally provided on the inner side of the slider, a limit plate is provided at the front end of the slide rail, a spring is provided on the side of the slider close to the limit plate, and a push fork is provided on the side of the slider away from the built-in protective frame.
[0009] Preferably, a sliding structure is formed between the slider and the outside of the slide rail.
[0010] Preferably, the structure formed between the body frame and the heel plate is a U-shaped structure.
[0011] Preferably, the limiting plate and the slide rail are an integrated structure.
[0012] Preferably, the limiting plate and the slide rail are an integrated structure.
[0013] Preferably, the height of the built-in guard frame is equal to the height of the handrail board.
[0014] Preferably, the spacing between the symmetrically formed structures of the armrest panels is smaller than the length of the heel panels.
[0015] Compared with the prior art, the present invention provides a protective device for engineering construction, which has the following beneficial effects:
[0016] 1. A multi-faceted protection system is constructed through the coordination of built-in guard frames, heel plates and other structures. The built-in guard frames protect the front of the body to avoid front-end collision injuries during construction. The heel plates limit the backward movement of the heels to prevent people from falling due to unstable standing.
[0017] 2. The design of the slider, slide rail and spring enables the device to move in an orderly manner when subjected to thrust. The guardrail body opens to meet operational requirements, and the spring can assist in resetting, ensuring the safety and functionality of the device's cyclic use, effectively reducing the safety risks of construction workers during operation, and the push fork can replace manual pushing to increase the degree of protection and simplify manual operation steps. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of the engineering construction protection device of the utility model;
[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;
[0020] Figure 3 This is a diagram showing the disassembled structure of the first protective device of the utility model;
[0021] Figure 4 This is a diagram showing the disassembled structure of the second protective device of the present invention;
[0022] Figure 5This is a diagram showing the disassembled structure of the third protective device of the present invention.
[0023] In the figure: 1. Guardrail body; 2. Built-in guard frame; 3. Handrail board; 4. Body frame; 5. Side panel; 6. Slider; 7. Slide rail; 8. Heel plate; 9. Push fork; 10. Limit plate; 11. Spring. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] A protective device for engineering construction includes a guardrail body 1, a side panel 5 is provided on the back of the guardrail body 1, a handrail board 3 is provided on one side of the side panel 5, a heel board 8 is provided near the lower end of the handrail board 3 near the guardrail body 1, a body frame 4 is provided on both sides of the heel board 8, and a built-in guard frame 2 is provided on the front of the heel board 8;
[0026] A slider 6 is provided on one side of the bottom end of the body frame 4, a slide rail 7 is laterally provided on the inner side of the slider 6, a limit plate 10 is provided at the front end of the slide rail 7, a spring 11 is provided on the side of the slider 6 close to the limit plate 10, and a push fork 9 is provided on the side of the slider 6 away from the built-in protective frame 2.
[0027] Example 1: Please refer to Figure 1 - Figure 5 , the sliding structure of the slider 6 and the slide rail 7 is optimized, and the material of the slider 6 is replaced with a self-lubricating polymer material to reduce the friction resistance between the slider 6 and the slide rail 7, making the sliding process smoother. At the same time, a number of evenly distributed oil guide grooves are opened on the surface of the slide rail 7, and lubricating oil is regularly added to the grooves to further improve the sliding performance;
[0028] When the construction workers push the built-in protective frame 2, the body frame 4 drives the slider 6 to slide along the slide rail 7. Under the action of the lubricating material and lubricating oil, the movement resistance of the slider 6 is reduced, and the movement of the body frame 4, heel plate 8 and other components is easier, which can reduce the force required for construction workers to push the device and improve the convenience of operation. Moreover, due to the reduced friction, the wear of the slider 6 and the slide rail 7 is reduced, and the service life of the components is extended. During the reset process of the slider 6, the elastic force of the spring 11 can more efficiently drive the slider 6 back to its position, ensuring the stability of the device during repeated use, allowing the built-in protective frame 2 and other structures to quickly return to the initial protection position, and continue to provide reliable protection for the construction workers.
[0029] Example 2: Please refer to Figure 1 - Figure 5, the structure of the built-in protective frame 2 is strengthened by replacing its material with high-strength alloy, increasing its thickness and improving its impact resistance. At the same time, the connection method between the body frame 4 and the heel plate 8 is improved from the original ordinary welding to a composite connection of mortise and tenon combined with welding to enhance the overall structural strength;
[0030] During construction, the built-in guard frame 2 is optimized in material and thickness, which can better resist accidental collisions, impacts from falling objects, etc. in the construction environment, providing stronger protection for the front end of the construction workers' bodies. The body frame 4 and the heel plate 8 are connected in a composite manner, and the structural strength is improved. When driving the slider 6 to slide and bearing the thrust of the construction workers' bodies and the external forces of daily use, it is not easy to deform or break, thereby ensuring the overall stability of the device. When the construction workers push the device to open the guardrail body 1 and the subsequent spring 11 resets, the reinforced structure can transmit force more stably, allowing the various components of the device to work together more reliably and maintain good protective functions even after long-term use.
[0031] When in use, the guardrail body 1 is used as the core basic framework to build a preliminary structure of the overall protection. The side panels 5 serve as auxiliary structures, cooperating with the guardrail body 1 to extend the protection range from the side, and together outlining a relatively closed and stable protection boundary, preventing construction workers from accidentally deviating from the work area and avoiding dangers such as falling from the side. The handrails 3 are arranged in parallel to provide construction workers with reliable gripping support points during the operation process. Construction workers can enhance their standing stability in the protective device by grasping the handrails 3, and it is also convenient to apply force and cooperate with body movement to complete related construction actions. The heel plate 8 is arranged horizontally at a specific position, and its length and width are adapted to the standing needs of the construction workers' feet. When the construction workers step into the front end area of the heel plate 8, the heel plate 8 can effectively limit the excessive backward movement of the construction workers' heels, so that the construction workers' feet always remain in a relatively stable and safe standing position, providing basic protection for body balance;
[0032] The built-in guard frame 2 is made of solid material and is connected to the body frame 4 by welding or other fixed connection methods to form a whole, ensuring synchronous movement when subjected to force. The slider 6 installed at the bottom of the body frame 4 is precisely embedded in the slide rail 7. The tolerance of the two forms a stable sliding structure. When the construction worker steps on the front end of the heel plate 8 according to the operation process, actively presses the chest against the inner side of the built-in guard frame 2 and moves forward, the thrust applied by the body is transmitted in sequence: first acting on the built-in guard frame 2, because the built-in guard frame 2 is fixed to the body frame 4, and then drives the body frame 4, and the body frame 4 in turn links the heel plate 8, so that these components are displaced synchronously. During this process, the slider 6 slides smoothly along the track direction of the slide rail 7. The slide rail 7 provides guidance for the movement of the slider 6 and related components, ensuring the accuracy of the movement trajectory;
[0033] When the built-in guard frame 2 moves with the body, it forms a physical shield and support for the front of the construction worker's body by virtue of its own frame structure, resisting the dangers of collision, impact of falling objects and other hazards that may occur in the working environment, and building a strong protective barrier for the front of the body. The heel plate 8 continues to play a limiting role, allowing the construction worker's feet to maintain a stable standing position in the device, avoiding the body from being unbalanced due to foot sliding. As the slider 6 slides along the slide rail 7, the push fork 9 connected to the slider 6 also moves synchronously, gradually approaching the lower end of the guardrail body 1 and contacting and resisting it, using the thrust to cause the guardrail body 1 to rotate and open around the connection point, making room for the construction worker to operate forward. At the same time, the spring 1 One end of the spring 1 is connected to the slider 6 and the other end is connected to the fixed structure of the device. During the displacement of the slider 6, the spring 11 is compressed and stores elastic potential energy. When the construction worker completes the front-end operation and no longer applies thrust, the spring 11 releases the stored elastic potential energy and converts it into a driving force to push the slider 6 to slide in the opposite direction, driving the body frame 4, the built-in guard frame 2, the heel plate 8 and other related components to return to their initial positions. The push fork 9 is separated from the guardrail body 1, and the entire protective device is restored to its initial protective state. This cycle is repeated, continuously providing safety protection for construction workers in each operation process, ensuring the automatic reset of the device's own functions, and maintaining stable and reliable protective performance.
[0034] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, in this embodiment, their specific structural composition and working principle will not be described in detail.
[0035] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A protective device for engineering construction, comprising a guardrail body (1), characterized in that: The back of the guardrail body (1) is provided with a side panel (5), one side of the side panel (5) is provided with an armrest panel (3), the lower end of the armrest panel (3) close to the guardrail body (1) is provided with a heel panel (8), both sides of the heel panel (8) are provided with a body frame (4), and the front of the heel panel (8) is provided with a built-in guard frame (2); A slider (6) is provided on one side of the bottom end of the body frame (4), a slide rail (7) is laterally provided on the inner side of the slider (6), a limit plate (10) is provided at the front end of the slide rail (7), a spring (11) is provided on the side of the slider (6) close to the limit plate (10), and a push fork (9) is provided on the side of the slider (6) away from the built-in protective frame (2).
2. A protective device for engineering construction according to claim 1, characterized in that: A sliding structure is formed between the slider (6) and the outside of the slide rail (7).
3. The protective device for engineering construction according to claim 1, characterized in that: The structure formed between the body frame (4) and the heel plate (8) is a U-shaped structure.
4. The protective device for engineering construction according to claim 1, characterized in that: The limiting plate (10) and the slide rail (7) are an integrated structure.
5. The protective device for engineering construction according to claim 1, characterized in that: The built-in protective frame (2) and the body frame (4) are fixedly connected.
6. The protective device for engineering construction according to claim 1, characterized in that: The height of the built-in guard frame (2) is equal to the height of the handrail board (3).
7. The protective device for engineering construction according to claim 1, characterized in that: The armrest plates (3) are symmetrically structured so that the spacing between them is smaller than the length of the heel plate (8).