Quick disassembly and assembly type protection device for constructional engineering
By designing symmetrical columns and a fence structure, and utilizing clips and adjustment components to achieve convenient connection of crossbars, the problem of inconvenient disassembly and assembly of existing devices is solved, construction efficiency is improved, the risk of loss of fasteners is reduced, and construction costs are lowered.
Patent Information
- Application Number
- CN202520037657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-07
AI Technical Summary
The existing edge protection devices used in construction projects are inconvenient to install and dismantle, resulting in low construction efficiency and easy loss of fasteners, which increases construction costs.
Design a quick-assembly and disassembly protective device, which adopts a symmetrical column and fence structure. It uses a clamp and adjustment component to realize convenient connection and adjustment of the crossbar. The installation process is simplified by the clamp and column engagement and the threaded connection of the adjusting bolt.
It improves construction efficiency, reduces disassembly and assembly time, lowers the risk of losing fasteners, and reduces construction costs.
Smart Images

Figure CN223838648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of edge protection in building engineering, and in particular to a quick-assembly and disassembly protective device for building engineering. Background Technology
[0002] With the current increasingly severe safety situation, ensuring safety is the top priority during construction projects. Falls from heights are one of the most common safety accidents during construction. Proper edge protection during construction can effectively reduce the occurrence of such accidents.
[0003] Most existing edge protection devices used in construction projects require centralized collection after use. However, because most of these devices are integral protective railings, they occupy a significant amount of storage space, resulting in poor storage efficiency. To address this, Chinese Patent No. 20232000065819.4 proposes an edge protection device for construction projects, comprising two fixed frames and four crossbars. Each crossbar has a fixed ring fixedly installed at one end. Two fixing bolts and two nuts are provided on the outside of each crossbar. The bottom end of each fixing bolt passes through the inner ring of the two fixing rings and extends to the bottom of the fixing rings. The bottom end of each fixing bolt is threadedly connected to the nut. Vertical bars arranged at equal intervals are fixedly installed on the adjacent sides of each set of crossbars. This device connects the horizontal bars by installing a fixing ring at one end of each set of horizontal bars and connecting the fixing ring with a nut threaded through the inner ring of the fixing bolt. The angle between the two sets of horizontal bars can be adjusted as needed, thus providing better protection for the edges of the building. This device solves the problem of poor storage effect caused by most existing edge protection devices for building projects being integral guardrails.
[0004] However, the aforementioned protective devices require numerous fasteners to connect and secure the posts and fences. Their assembly and disassembly take a significant amount of time and are extremely inconvenient. Generally, the fence must be installed before subsequent construction can proceed. The time spent on fence assembly and disassembly extends the construction period and reduces construction efficiency. Furthermore, the fasteners are easily lost during the assembly and disassembly process, necessitating the preparation of many spare fasteners, which increases construction costs. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a quick-assembly and disassembly protective device for construction projects. The protective device is easy to assemble and disassemble, which can save construction time, and does not require separate preparation of fasteners, thus avoiding the problem of fastener loss.
[0006] To achieve the aforementioned technical objectives, this utility model provides a quick-assembly and disassembly protective device for construction projects, comprising two symmetrically arranged columns and a fence located between the two columns. The fence includes upper and lower horizontal bars and multiple vertical bars fixed between the upper and lower horizontal bars. Each column has a fixing plate at its bottom, and each column has mounting through holes corresponding to the positions of the upper and lower horizontal bars. These mounting through holes are opened along the width direction of the column, and a retaining sleeve is slidably installed in each mounting through hole, with each retaining sleeve adjacent to the fence. One end is provided with a slot for engaging with the end of a crossbar. When the fence is connected to the post, the ends of the upper and lower crossbars are respectively engaged with the sleeves at the upper and lower ends of the two posts. Each post has a receiving cavity along its length. The upper and lower ends of the receiving cavity are respectively connected to the upper and lower mounting through holes of the post. A sliding rod is vertically provided in the receiving cavity, and the sliding rod can move horizontally along the width of the post within the receiving cavity. The upper and lower ends of the sliding rod are respectively connected to the sleeves. An adjustment component for controlling the horizontal movement of the sliding rod within the receiving cavity is provided in the middle of each post.
[0007] The preferred technical solution of this utility model is as follows: the adjustment component includes an adjustment bolt and a nut, the nut is fixedly installed on the slide rod, and an adjustment hole is correspondingly opened on the column. The bolt passes through the adjustment hole on the column and is threadedly connected to the nut.
[0008] The preferred technical solution of this utility model is as follows: the sleeve is provided with a support platform, which abuts against the end of the crossbar when the crossbar is engaged with the sleeve; the sleeve is provided with sliders on both sides symmetrically, and the inner wall of the mounting through hole is provided with a corresponding groove, and when the sleeve is inserted into the mounting through hole, the sliders on both sides are inserted into the corresponding groove and slide along the groove.
[0009] The preferred technical solution of this utility model is as follows: the fixing plate is provided with multiple anchoring holes, and the bottom of the fixing plate is provided with or without a fixing rod.
[0010] The preferred technical solution of this utility model is that the end of the crossbar is provided with a rounded corner.
[0011] The preferred technical solution of this utility model is as follows: an elastic element is provided between the slide rod and the column, and the elastic element is in a compressed state when the slide rod approaches the bolt.
[0012] The preferred technical solution of this utility model is as follows: the bolt is provided with a limiting piece, which is fixedly connected in the accommodating cavity to prevent the bolt from moving excessively and disengaging from the nut.
[0013] The preferred technical solution of this utility model is that the head of the bolt is fixedly connected to a handle.
[0014] When installing the protective device, this utility model first measures and determines the installation position of the column based on the actual conditions of the construction site. The column is then placed vertically in the predetermined position and firmly fixed to the ground using expansion bolts, embedded parts, or other fixing methods. Next, one end of the crossbar is engaged with the clamping sleeve on the column. An adjusting component then drives the sliding rod within the adjacent column's receiving cavity to slide, thereby causing the clamping sleeve to slide. The position of the clamping sleeve is adjusted as needed to fix the other end of the crossbar, ensuring a secure connection. This design allows for easy adjustment of the clamping sleeve's position, reducing the time required for repeated disassembly and reinstallation due to improper installation. Furthermore, it eliminates the need for complex construction operations by workers, effectively improving construction efficiency, shortening the construction period, reducing construction costs, and addressing the problem of inconvenient installation and disassembly of edge protection devices, which often results in the loss of fasteners. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0016] Figure 2 This is a partial sectional view of the overall structure of an embodiment of this application;
[0017] Figure 3 yes Figure 2 A magnified view of part A in the diagram.
[0018] Explanation of reference numerals in the attached drawings: 1. Column; 100. Mounting through hole; 101. Receiving cavity; 2. Sleeve; 200. Support platform; 201. Slider; 3. Fence; 300. Horizontal bar; 301. Vertical bar; 4. Adjustment component; 400. Adjustment bolt; 401. Nut; 402. Limiting plate; 403. Handle; 5. Sliding rod; 6. Fixing plate; 600. Anchoring hole; 7. Elastic element. Detailed Implementation
[0019] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] The embodiment provides a quick-release protective device for building engineering, referring to... Figures 1 to 3The device includes two symmetrically arranged pillars 1 and a fence 3 located between the two pillars. The fence includes two horizontal bars 300 and multiple vertical bars 301 fixed between the two horizontal bars. Each pillar 1 has a fixing plate 6 at its bottom. The fixing plate 6 has multiple anchoring holes 600. The fixing plate 6 may or may not have a fixing rod at its bottom. Each column 1 has a mounting through hole 100 at the position corresponding to the upper and lower crossbars 300. The mounting through holes 100 are opened along the width direction of the column 1, and a sleeve 2 is slidably installed in each mounting through hole 100. The sleeve 2 has a support 200 inside, and the support 200 abuts against the end of the crossbar 3 when the crossbar 2 is engaged with the sleeve 2. Slider 201 is symmetrically arranged on both sides of the sleeve 2. The inner wall of the mounting through hole 100 is correspondingly provided with a sliding groove. When the sleeve 2 is inserted into the mounting through hole 100, the slider 201 on both sides is inserted into the sliding groove and slides along the sliding groove, realizing the smooth sliding and positioning of the sleeve 2 on the column. Each clip 2 has a slot near one end of the fence 3 that engages with the end of the crossbar 300. The end of the crossbar 3 has rounded corners for easy insertion. During the installation of the crossbar 3, the rounded corner design reduces interference with surrounding structures or components, making the installation process smoother and more convenient. It also significantly reduces the risk of injury caused by collisions or accidental contact with the end of the crossbar 3. When the fence 3 is connected to the post 1, the ends of the upper and lower horizontal bars 300 are respectively engaged with the sleeves 2 at the upper and lower ends of the two posts 1; each post 1 has a receiving cavity 101 along its length direction, and the upper and lower ends of the receiving cavity 101 are respectively connected to the upper and lower mounting through holes 100 of the post 1; a sliding rod 5 is vertically provided in the receiving cavity 101, and the sliding rod 5 can move horizontally along the width direction of the post in the receiving cavity 101; the upper and lower ends of the sliding rod 5 are respectively connected to the sleeves 2; an adjustment component 4 for controlling the horizontal movement of the sliding rod 5 in the receiving cavity 101 is provided in the middle of each post 1.
[0021] When installing the protective device, firstly, based on the actual conditions of the construction site, measure and determine the installation position of the column 1. Place the column 1 vertically in the predetermined position and firmly fix it to the ground using expansion bolts, embedded parts, or other fixing methods. Then, engage one end of the crossbar 3 with the clamp 2 on the column 1. Next, use the adjusting component to drive the sliding rod 5 in the adjacent column 1 receiving cavity 101 to slide, thereby causing the clamp 2 to slide. Adjust the position of the clamp 2 as needed to fix the other end of the crossbar 3 and ensure a secure connection. This design allows for easy adjustment of the position of the clamp 2, reducing the time required for repeated disassembly and reinstallation due to improper installation position. Furthermore, construction personnel do not need to perform complex construction operations, effectively improving construction efficiency, shortening the construction period, reducing construction costs, and addressing the problem of extremely inconvenient installation and disassembly of edge protection devices, which easily leads to the loss of fasteners.
[0022] In the embodiments, such as Figure 2 and Figure 3 As shown, the adjusting assembly 4 includes an adjusting bolt 400 and a nut 401. The nut 400 is fixedly installed on the slide rod 5, and an adjusting hole is correspondingly provided on the column 1. The bolt 4 passes through the adjusting hole on the column 1 and is threadedly connected to the nut 400. When it is necessary to adjust the position of the slide rod 5, the construction worker can rotate the bolt 4. The rotation of the bolt 4 will cause it to move within the nut 400, thereby pushing or pulling the slide rod 5 fixed to the nut 400. Under the push of the bolt 4, the slide rod 5 will slide in the receiving cavity 101 of the column 1. The sliding of the slide rod 5 will drive the retaining sleeve 2 to move together, thereby achieving rapid fixation of the crossbar 3. An elastic element 7 is provided between the slide rod 5 and the column 1. The elastic element 7 is specifically a spring, with both ends of the spring fixed to the slide rod 5 and the column 1 respectively. When the slide rod 5 approaches the bolt 4, the elastic element 7 is in a compressed state. Springs can absorb and disperse vibrations or impacts, protecting the overall structure from damage. They not only ensure that the slide bar 5 maintains a certain tension or pressure after adjustment, preventing displacement caused by loosening or vibration, but also enhance the stability of the overall structure by providing additional support.
[0023] In the embodiments, such as Figure 2 and Figure 3 As shown, the bolt 4 is provided with a limiting piece 402, which is fixedly connected within the receiving cavity 101 to prevent the bolt 4 from excessively moving and disengaging from the nut 400. The limiting piece 402 prevents the bolt 4 from excessively moving and disengaging from the nut 400, thereby ensuring that the slide rod 5 and the nut 400 remain within a predetermined position range. This helps prevent device failure or safety accidents caused by loosening or moving the bolt 4. A handle 403 is fixedly attached to the head of the bolt 4. The design of the handle 403 makes it easier for construction workers to apply rotational torque to the bolt 4, thus making it easier to rotate the bolt 4. This helps improve work efficiency when the position or tightness of the bolt 4 needs to be adjusted. Simultaneously, by fixing the handle 403, construction workers can more easily grip the bolt 4 and perform rotation operations without using additional tools or equipment, which increases the convenience and flexibility of operation.
[0024] The working process of this application is as follows: When installing the protective device, firstly, based on the actual conditions of the construction site, measure and determine the installation position of the column 1, place the column 1 vertically in the predetermined position, and firmly fix it to the ground using expansion bolts, embedded parts, or other fixing methods; then, engage one end of the crossbar 3 with the clamp 2 on the column 1, and then drive the sliding rod 5 in the adjacent column 1 receiving cavity 101 to slide through the adjusting component, thereby driving the clamp 2 to slide. Adjust the position of the clamp 2 as needed to fix the other end of the crossbar 3 and ensure a secure connection. This design allows the position of the clamp 2 to be easily adjusted, thereby reducing the time required for repeated disassembly and reinstallation due to improper installation position, and eliminating the need for complex construction operations by construction personnel, effectively improving construction efficiency, shortening the construction period, reducing construction costs, and improving the problem of extremely inconvenient installation and disassembly of edge protection devices and the easy loss of fixing parts.
[0025] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A quick-assembly and disassembly protective device for construction projects, comprising two symmetrically arranged columns (1) and a fence (3) located between the two columns, the fence comprising two horizontal bars (300) and multiple vertical bars (301) fixed between the two horizontal bars, each column (1) having a fixing plate (6) at its bottom, characterized in that: Each column (1) has a mounting through hole (100) at the position corresponding to the upper and lower horizontal bars (300). The mounting through holes (100) are opened along the width direction of the column (1), and a sleeve (2) is slidably installed in each mounting through hole (100). Each sleeve (2) has a slot at one end near the fence (3) that engages with the end of the horizontal bar (300). When the fence (3) is connected to the column (1), the ends of the upper and lower horizontal bars (300) engage with the sleeves (2) at the upper and lower ends of the two columns (1), respectively. The column (1) has a receiving cavity (101) along its length. The upper and lower ends of the receiving cavity (101) are respectively connected to the upper and lower mounting through holes (100) of the column (1). A sliding rod (5) is vertically provided in the receiving cavity (101), and the sliding rod (5) can move horizontally along the width direction of the column in the receiving cavity (101). The upper and lower ends of the sliding rod (5) are respectively connected to the sleeve (2). An adjustment component (4) for controlling the horizontal movement of the sliding rod (5) in the receiving cavity (101) is provided in the middle of each column (1).
2. The quick-assembly and disassembly protective device for building engineering according to claim 1, characterized in that: The adjustment assembly (4) includes an adjustment bolt (400) and a nut (401). The nut (401) is fixedly installed on the slide rod (5). An adjustment hole is correspondingly opened on the column (1). The adjustment bolt (400) passes through the adjustment hole on the column (1) and is threadedly connected to the nut (401).
3. A quick-assembly and disassembly protective device for building construction as described in claim 1 or 2, characterized in that: The sleeve (2) is provided with a support (200), which abuts against the end of the crossbar (300) when the crossbar (300) is engaged with the sleeve (2); the sleeve (2) is provided with sliders (201) symmetrically on both sides, and the inner wall of the mounting through hole (100) is provided with a corresponding groove. When the sleeve (2) is inserted into the mounting through hole (100), the sliders (201) on both sides are inserted into the groove and slide along the groove.
4. A quick-assembly and disassembly protective device for building construction as described in claim 1 or 2, characterized in that: The fixing plate (6) has multiple anchor holes (600), and the bottom of the fixing plate (6) may or may not be provided with a fixing rod.
5. A quick-assembly and disassembly protective device for building construction according to claim 1, characterized in that: The crossbar (300) has rounded corners at its ends.
6. A quick-assembly and disassembly protective device for building construction according to claim 2, characterized in that: An elastic element (7) is provided between the slide rod (5) and the column (1). When the slide rod (5) approaches the adjusting bolt (400), the elastic element (7) is in a compressed state.
7. A quick-assembly and disassembly protective device for building construction according to claim 2, characterized in that: The adjusting bolt (400) is provided with a limiting piece (402), which is fixedly connected in the accommodating cavity (101) to prevent the adjusting bolt (400) from moving excessively and disengaging from the nut (401).
8. A quick-assembly and disassembly protective device for building construction according to claim 2, characterized in that: The head of the adjusting bolt (400) is fixed with a handle (403).