Adjustable edge protection structure and erecting method thereof

Abstract

The invention relates to the technical field of hole protection, in particular to an adjustable edge protection structure and a supporting method thereof.The adjustable edge protection structure comprises four fixed vertical rods distributed outside a hole in a rectangular mode and four telescopic transverse rods arranged on the corresponding side edges, and each telescopic transverse rod is composed of a main rod body and connecting rod bases connected with the two ends in a sliding mode; length locking is achieved through the positioning holes, the adjusting holes and fasteners, the pressing blocks at the two ends of the transverse rod are matched and fastened with the cam pressing mechanisms on the vertical rods, and the vertical rods are provided with connecting holes used for installing a safety protection net. Through the multi-gear adjustment design of the telescopic cross rod, one set of structure can adapt to holes of various sizes, and customization is not needed; electric welding cutting is not needed in mounting and dismounting, operation is convenient and efficient, and construction efficiency is greatly improved; and parts can be recycled, the purchasing and storage cost is reduced, the problems that a traditional protection structure is poor in adaptability and low in turnover efficiency are solved, and construction safety is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of opening protection technology, specifically an adjustable edge protection structure and its support method. Background Technology

[0002] During the construction, renovation, and finishing stages of building projects, edge openings such as reserved openings in floor slabs, elevator shafts, and pipe shafts are widespread. These openings come in a variety of sizes and specifications, posing numerous challenges to edge protection construction. As a crucial link in ensuring the personal safety of construction workers, the rationality, adaptability, and construction efficiency of edge protection structures directly affect the level of safety management at the construction site.

[0003] In existing technologies, edge opening protection mostly adopts fixed-size protective nets or welded protective frames. These traditional protective structures have the following significant drawbacks: First, poor adaptability; custom-made protective devices are required for openings of different sizes, leading construction units to purchase and stock various specifications of protective materials, increasing procurement costs and warehousing pressure, and resulting in material waste. Second, cumbersome installation and disassembly; traditional protective structures often rely on complex processes such as welding and cutting for fixing and disassembly, requiring professional construction personnel and heavy tools, extending the protection construction cycle, and failing to meet the needs of rapid protection on construction sites. Third, low turnover efficiency; fixed-size protective structures, once used for one opening, are difficult to adapt to other opening sizes, mostly requiring single-use or complex modifications for reuse, increasing construction costs and contradicting energy-saving and environmentally friendly construction principles. Fourth, insufficient structural stability; some temporarily spliced ​​protective structures lack reliable locking mechanisms, easily leading to loosening and displacement, posing safety hazards on construction sites.

[0004] With the increasing demands for construction efficiency, safety, and cost control in the construction industry, developing an edge protection structure that is highly adaptable, easy to install, has good turnover, and provides reliable protection has become an urgent technical problem to be solved in the current construction field. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an adjustable edge protection structure and its support method that is highly adaptable, easy to install, and has good reusability.

[0006] The technical solution adopted by this invention to solve its technical problem is: An adjustable edge protection structure includes four fixed uprights arranged in a rectangle outside the opening, with a pipe support corresponding to each fixed upright; it also includes four retractable crossbars arranged along the sides formed by the four fixed uprights, with each retractable crossbar supported at both ends by the pipe supports of two adjacent fixed uprights on the corresponding side; each retractable crossbar has a pressure block at both ends, and a cam clamping mechanism is provided on the fixed upright at the position corresponding to the pipe support. The cam clamping mechanism is adapted to the pressure block, and the action of the cam clamping mechanism squeezes the pressure block, so that the retractable crossbar is firmly connected to the fixed upright; the fixed upright is also provided with connection holes at intervals for installing safety nets.

[0007] As a preferred embodiment, a further technical solution of the present invention is: Preferably, the telescopic crossbar includes a main body and connecting rod seats that are slidably connected to both ends of the main body. Positioning holes are provided at intervals on the side wall of the connecting rod seat, and adjustment holes are provided on the main body corresponding to the positioning holes. The length of the main body and the connecting rod seat is locked by fasteners passing through the positioning holes and adjustment holes. A pressure block is provided at the end of the connecting rod seat away from the main body.

[0008] Preferably, the cam pressing mechanism includes a cam rotatably connected to a fixed upright, and a pressing handle is provided on the cam. The pressing block has locking platforms on both sides corresponding to the pressing handle. When the pressing handle is rotated, the protruding part on the cam presses down on the pressing block, and the pressing handle can be locked in the locking platform.

[0009] Preferably, the main rod body has a hollow structure, and a slide rail base is fixedly installed at the bottom of the hollow part. The slide rail base has a concave groove extending along the length direction of the main rod body. Hemispherical grooves are arranged at intervals along the extension direction in the concave groove, and stainless steel balls are installed in the hemispherical grooves. The bottom of the connecting rod seat has a sliding protrusion that matches the concave groove. The sliding protrusion is embedded in the concave groove and rolls in contact with the stainless steel balls to realize the sliding connection between the connecting rod seat and the main rod body.

[0010] This invention also discloses an adjustable edge protection structure support method, which utilizes an adjustable edge protection structure, and the specific steps are as follows: S1: Conduct on-site surveys to determine the actual dimensions and outline of the opening, identify the installation points of the four fixed poles, and ensure that a pre-set safety distance is reserved between the fixed poles and the edge of the opening; S2: Drill holes at each installation point, pre-install the expansion bolts into the holes, attach the base of the fixed pole to the installation surface, align the mounting holes of the base with the expansion bolts, and tighten the expansion bolt nuts in sequence to complete the pole fixing; S3: Adjust the length of the telescopic crossbars on the four sides according to the span size of the corresponding side: Pull the connecting rod seat to slide along the concave groove of the main rod body so that the total length of the telescopic crossbar is adapted to the distance between the two adjacent fixed uprights on the corresponding side, align the positioning hole of the connecting rod seat with the adjustment hole of the main rod body, insert the fastener and tighten and lock it. S4: Place the four retractable crossbars that have been adjusted onto the tube supports of the two adjacent fixed uprights on the corresponding sides, so that the pressure blocks at both ends of the retractable crossbars correspond to the cam pressing mechanism on the fixed uprights. S5: Rotate the pressure handles of each cam pressing mechanism to drive the cam to rotate, causing the cam protrusions to press down on the pressure block. The pressure handles are engaged in the clamping positions on both sides of the pressure block, thus achieving a tight lock between the telescopic crossbar and the fixed upright, forming a closed frame protection structure.

[0011] Preferably, it also includes S6, the safety net installation steps: select a horizontal safety net or a close-mesh safety net according to the protection requirements, and hang the edge of the safety net to the connection hole of the fixed pole through the hook. Tighten the net in sequence and check the hanging firmness to ensure that the net is not loose or damaged, and covers the entire opening area.

[0012] Preferably, the process also includes a disassembly and recycling step: first, remove the hooks from the safety net and fold the net for storage; then, reverse the pressure handle of the cam clamping mechanism to release the cam's pressure on the pressure block and remove the telescopic crossbar; then, loosen the fasteners and slide the connecting rod seat into the main rod body to complete the storage; finally, unscrew the expansion bolt nuts, remove the fixed upright, clean and inspect each component, repair or replace damaged components, and then classify and store them for reuse.

[0013] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art: 1. Through the sliding fit structure between the main rod and the connecting rod seats at both ends, combined with the multi-position locking design of the positioning hole and adjustment hole, a single telescopic crossbar can flexibly adapt to the side of the opening with different spans. With the fixed uprights distributed in a rectangle outside the opening, one set of structures can cover the protection needs of edge openings of various sizes. There is no need to customize exclusive protection devices for different openings, which solves the problems of purchasing many categories of traditional fixed-size protection structures, messy inventory, and low turnover efficiency.

[0014] 2. The fixed uprights are quickly secured with expansion bolts, and the length of the telescopic crossbar is adjusted by the sliding rail base and the rolling action of stainless steel balls, making operation effortless and adjustment precise. The crossbar and uprights are fastened by a cam clamping mechanism, which can be locked and unlocked by turning the handle. No welding, cutting or other complicated procedures are required. No professional heavy tools are needed for the entire installation and disassembly process, which greatly improves construction efficiency and ensures timely edge protection.

[0015] 3. All components adopt a high-strength adaptable structure design, with no component damage during installation and disassembly. After disassembly, the connecting rod seat can be stored inside the main rod body, reducing storage space occupation. After cleaning and maintenance, the components can be reused, greatly reducing material consumption and procurement costs. Compared with traditional disposable or customized protective structures, it is more in line with the construction concept of energy conservation and environmental protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Fixed upright; 2. Telescopic crossbar; 201. Connecting rod seat; 202. Main rod body; 2021. Adjustment hole; 2022. Sliding protrusion; 3. Fastener; 4. Pipe support; 5. Pressure block; 6. Cam; 7. Pressure handle; 8. Locking platform; 9. Connecting hole; 10. Slide rail base. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0019] like Figures 1 to 3 As shown in the figure, this embodiment provides an adjustable edge protection structure, including four fixed uprights 1 arranged in a rectangle outside the opening, each fixed upright 1 having a corresponding pipe support 4; it also includes four retractable crossbars 2 arranged on the sides formed by the four fixed uprights 1, each retractable crossbar 2 having its two ends supported on the pipe supports 4 of two adjacent fixed uprights 1 on the corresponding side; each retractable crossbar 2 has a pressure block 5 at both ends, and a cam 6 pressing mechanism is provided on the fixed upright 1 at the position corresponding to the pipe support 4. The cam 6 pressing mechanism is adapted to the pressure block 5, and the action of the cam 6 pressing mechanism squeezes the pressure block 5, so that the retractable crossbar 2 is firmly connected to the fixed upright 1; the fixed upright 1 is also provided with connecting holes 9 at intervals, and the connecting holes 9 are used to install safety nets. In this embodiment, the pole body of the fixed pole 1 is made of 3mm thick 50mm x 50mm high-strength aluminum alloy, and the bottom of the pole body is provided with a base, which is a 3mm thick trapezoidal steel plate; the pipe support 4 structure is welded from an angle steel and a triangular steel plate, and the triangular steel plate connects the two sides of the angle steel to increase the support strength. The angle steel is 150mm x 150mm x 3mm in size, and the steel plate is 3mm thick; the diameter of the connecting hole 9 is 3mm, and the spacing between the connecting holes 9 is 400mm.

[0020] Preferably, the telescopic crossbar 2 includes a main rod body 202 and connecting rod seats 201 slidably connected to both ends of the main rod body 202. Positioning holes are spaced apart on the side wall of the connecting rod seats 201, and adjusting holes 2021 are provided on the main rod body 202 corresponding to the positioning holes. The length of the main rod body 202 and the connecting rod seats 201 is locked by fasteners 3 passing through the positioning holes and adjusting holes 2021. A pressure block 5 is located at the end of the connecting rod seats 201 away from the main rod body 202. The connecting rod seats 201 are made of 3mm thick 50mm x 50mm high-strength aluminum alloy, and the main rod body 202 is made of 2.5mm thick 37mm x 37mm high-strength aluminum alloy. The spacing between the adjusting holes 2021 and the positioning holes is 100mm, and the diameter of both the adjusting holes 2021 and the positioning holes is 5mm.

[0021] Preferably, the cam 6 clamping mechanism includes a cam 6 rotatably connected to the fixed upright 1 via a rotating shaft. The cam 6 also has a pressure handle 7. The pressure block 5 has locking platforms 8 on both sides corresponding to the pressure handle 7. Rotating the pressure handle 7 causes the protruding portion of the cam 6 to press down onto the pressure block 5, allowing the pressure handle 7 to engage with the locking platforms 8. In this embodiment, the locking platforms 8 consist of two spaced-apart locking posts, the distance between which matches the thickness of the pressure handle 7. Locking bolts can also be threaded onto the locking posts for securing.

[0022] Preferably, the main rod 202 has a hollow structure, and a slide rail base 10 is fixedly installed at the bottom of the hollow part. The slide rail base 10 has a concave groove extending along the length direction of the main rod 202. The concave groove is 1.5mm wide, and a hemispherical groove is provided at 10mm intervals along the extension direction in the concave groove. A stainless steel ball with a diameter of 3mm is installed in the hemispherical groove. The bottom of the connecting rod seat 201 has a sliding protrusion 2022 that matches the concave groove. The sliding protrusion 2022 is embedded in the concave groove and rolls in contact with the stainless steel ball, so as to realize the sliding connection between the connecting rod seat 201 and the main rod 202.

[0023] This invention also discloses an adjustable edge protection structure support method, which utilizes an adjustable edge protection structure, and the specific steps are as follows: S1: Conduct on-site surveys to determine the actual dimensions and outline of the opening, identify the installation points of the four fixed poles 1, and ensure that a pre-set safety distance is reserved between the fixed poles 1 and the edge of the opening; for example, for a 0.8m×1.2m opening, the pre-set safety distance can be set to 150mm.

[0024] S2: Drill holes at each installation point, pre-install expansion bolts into the holes, attach the base of the fixed pole 1 to the installation surface, align the mounting holes of the base with the expansion bolts, and tighten the expansion bolt nuts in sequence to complete the pole fixing.

[0025] S3: Adjust the length of the telescopic crossbars 2 on the four sides according to the span size of the corresponding side: Pull the connecting rod seat 201 to slide along the concave groove of the main rod body 202 so that the total length of the telescopic crossbar 2 is adapted to the spacing between the two adjacent fixed uprights 1 on the corresponding side, align the positioning hole of the connecting rod seat 201 with the adjustment hole 2021 of the main rod body 202, insert the fastener 3 and tighten and lock it.

[0026] S4: Place the four retractable crossbars 2 that have been adjusted onto the tube supports 4 of the two adjacent fixed uprights 1 on the corresponding sides, so that the pressure blocks 5 at both ends of the retractable crossbars 2 correspond to the pressing mechanism of the cams 6 on the fixed uprights 1.

[0027] S5: Rotate the pressure handle 7 of each cam 6 pressing mechanism to drive the cam 6 to rotate, so that the protruding part of the cam 6 presses down on the pressure block 5, and the pressure handle 7 is engaged in the locking platform 8 on both sides of the pressure block 5, so as to realize the fastening and locking of the telescopic crossbar 2 and the fixed upright 1, forming a closed frame protection structure.

[0028] S6: Safety net installation steps: Select a horizontal safety net or a close-mesh safety net according to the protection requirements. Use hooks to attach the edge of the safety net to the connection hole 9 of the fixed pole 1. Tighten the net in sequence and check the attachment to ensure that the net is not loose or damaged and covers the entire opening area.

[0029] It also includes disassembly and recycling steps: first, remove the hooks of the safety net and fold the net for storage; then, rotate the handle 7 of the cam 6 pressing mechanism in the opposite direction to release the pressing state of the cam 6 on the pressure block 5 and remove the telescopic crossbar 2; then, loosen the fasteners 3 and slide the connecting rod seat 201 into the main rod body 202 to complete the storage; finally, unscrew the expansion bolt nuts, remove the fixed upright 1, clean and inspect each part, repair or replace damaged parts and store them in categories for reuse.

[0030] This application utilizes the sliding fit between the main rod 202 and the connecting rod seats 201 at both ends, along with a multi-position locking design, to achieve flexible adaptation of the telescopic crossbar 2 to openings of different sizes. One set of structures can meet the edge protection needs of various specifications, eliminating the need for customized devices and significantly reducing procurement and storage costs. The fixed upright 1 is quickly fixed using expansion bolts, and the crossbar and upright are easily locked and unlocked using the cam 6 clamping mechanism, eliminating the need for complex processes such as welding and cutting, thus significantly improving installation and disassembly efficiency. Each component adopts a high-strength adaptable structure and reliable connection method, combined with the dual fixation of "pipe support 4 + cam 6 clamping," ensuring the stability and safety of the protective structure. The components are reusable and easy to store, reducing material waste and construction costs, conforming to the concept of energy conservation and environmental protection, and effectively solving the pain points of poor adaptability, low turnover, and cumbersome operation of traditional protective structures.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. An adjustable edge protection structure, characterized in that: The structure includes four fixed uprights (1) arranged in a rectangle outside the opening, with pipe supports (4) corresponding to each fixed upright (1); it also includes four retractable crossbars (2) arranged on the sides of the four fixed uprights (1), with each retractable crossbar (2) supported at both ends on the pipe supports (4) of the two adjacent fixed uprights (1) on the corresponding side; each retractable crossbar (2) has a pressure block (5) at both ends, and a cam (6) pressing mechanism is provided on the fixed upright (1) at the position corresponding to the pipe support (4). The cam (6) pressing mechanism is adapted to the pressure block (5), and the pressure block (5) is pressed by the action of the cam (6) pressing mechanism, so that the retractable crossbar (2) is tightly connected to the fixed upright (1); the fixed upright (1) is also provided with connecting holes (9) at intervals, and the connecting holes (9) are used to install safety nets.

2. The adjustable edge protection structure according to claim 1, characterized in that: The telescopic crossbar (2) includes a main rod body (202) and a connecting rod seat (201) that is slidably connected to both ends of the main rod body (202). The side wall of the connecting rod seat (201) is provided with positioning holes at intervals, and the main rod body (202) is provided with adjustment holes (2021) corresponding to the positioning holes. The length of the main rod body (202) and the connecting rod seat (201) is locked by fasteners (3) passing through the positioning holes and adjustment holes (2021). The pressure block (5) is provided at the end of the connecting rod seat (201) away from the main rod body (202).

3. The adjustable edge protection structure according to claim 2, characterized in that: The cam (6) clamping mechanism includes a cam (6) rotatably connected to a fixed rod (1). The cam (6) is also provided with a pressure handle (7). The pressure block (5) is provided with a locking platform (8) on both sides corresponding to the pressure handle (7). After rotating the pressure handle (7), the protruding part on the cam (6) presses down on the pressure block (5), and the pressure handle (7) can be locked in the locking platform (8).

4. The adjustable edge protection structure according to claim 2, characterized in that: The main rod (202) has a hollow structure, and a slide rail base (10) is fixedly installed at the bottom of the hollow part. The slide rail base (10) has a concave groove extending along the length of the main rod (202). Hemispherical grooves are spaced apart along the extension direction in the concave groove. Stainless steel balls are installed in the hemispherical grooves. The bottom of the connecting rod seat (201) has a sliding protrusion (2022) that matches the concave groove. The sliding protrusion (2022) is embedded in the concave groove and rolls in contact with the stainless steel balls to realize the sliding connection between the connecting rod seat (201) and the main rod (202).

5. A method for supporting an adjustable edge protection structure, characterized in that, The adjustable edge protection structure described in any one of claims 1 to 4 is applied, and the specific steps are as follows: S1: Conduct on-site surveys to determine the actual dimensions and outline of the opening at the edge, identify the installation points of the four fixed poles (1), and ensure that the fixed poles (1) and the edge of the opening are reserved with a pre-set safety distance. S2: Drill holes at each installation point, pre-install expansion bolts into the holes, attach the base of the fixed pole (1) to the installation surface, align the base installation hole with the expansion bolt, and tighten the expansion bolt nuts in sequence to complete the pole fixing; S3: Adjust the length of the telescopic crossbars (2) on the four sides according to the span size of the corresponding side: Pull the connecting rod seat (201) to slide along the concave groove of the main rod body (202) so that the total length of the telescopic crossbar (2) is adapted to the spacing of the two adjacent fixed uprights (1) on the corresponding side, align the positioning hole of the connecting rod seat (201) with the adjustment hole (2021) of the main rod body (202), insert the fastener (3) and tighten and lock it; S4: Place the four telescopic crossbars (2) that have been adjusted on the tube supports (4) of the two adjacent fixed uprights (1) on the corresponding side, so that the pressure blocks (5) at both ends of the telescopic crossbars (2) correspond to the cam (6) pressing mechanism on the fixed uprights (1); S5: Rotate the pressure handle (7) of each cam (6) pressing mechanism to drive the cam (6) to rotate, so that the cam (6) protruding part presses down the pressure block (5), and the pressure handle (7) is engaged in the clamping platform (8) on both sides of the pressure block (5) to realize the fastening and locking of the telescopic crossbar (2) and the fixed upright (1) to form a closed frame protection structure.

6. The adjustable edge protection structure according to claim 5, characterized in that, Also includes S6, safety net installation steps: Select a horizontal safety net or a close-mesh safety net according to the protection requirements, and hang the edge of the safety net to the connection hole (9) of the fixed pole (1) by hooking it. Tighten the net in sequence and check the hanging firmness to ensure that the net is not loose or damaged and covers the entire opening area.

7. The adjustable edge protection structure according to claim 6, characterized in that, It also includes disassembly and recycling steps: first, remove the hooks of the safety net and fold the net for storage; then, rotate the cam (6) in the opposite direction to press the handle (7) of the clamping mechanism to release the clamping state of the cam (6) on the pressure block (5) and remove the telescopic crossbar (2); then loosen the fasteners (3) and slide the connecting rod seat (201) into the main rod body (202) to complete the storage; finally, unscrew the expansion bolt nuts, remove the fixed upright (1), clean and inspect each part, repair or replace the damaged parts and store them in categories for reuse.

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