A high-altitude work safety device

Abstract

This utility model relates to the field of high-altitude work fencing technology, specifically to a high-altitude work safety device. The high-altitude work safety device provided by this utility model includes a first protective frame and at least one first support frame connected to the first protective frame. The first support frame has a slot structure on its side near the first protective frame that matches the first crossbeam of the original fence. The opening of the slot structure faces away from the first protective frame. The first support frame has a first stop structure on its side away from the first protective frame, used to stop a second crossbeam located below the first crossbeam on the left and right sides of the plane where the original fence is located. By utilizing the interaction between the slot structure and the stop structure and the original fence, the protective frame can be stably fixed above the original fence in the high-altitude work area, achieving a low-cost, simple, and quick increase in the height of the original fence.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude work fence technology, specifically to a high-altitude work protection device. Background Technology

[0002] Currently, oil and gas stations, refining plants, construction sites, and other work sites have multiple aerial work platforms, as well as walkways and staircases leading to these platforms, for routine inspections, equipment replacement, and other operations. To protect the safety of workers, railings are typically installed along the edges of the platforms, usually at a height of 1.2 meters, providing some protection for personnel conducting routine inspections and operations.

[0003] For example, Chinese patent CN219060994U, authorized on May 23, 2023, discloses a high-altitude edge protection device, including a high-rise floor slab and expansion bolts inserted at the edge of the high-rise floor slab. The top of the high-rise floor slab is fixedly connected to a base plate and a positioning beam by expansion bolts and nuts. Locking devices, protective nets, toe boards, protective frames, horizontal beams and vertical beams are installed and fastened from above the positioning beams. The entire protective device is assembled by connecting another protective frame through locking plates, locking rods and connecting plates. The entire protective device is very simple and quick to assemble.

[0004] However, when high-altitude workers need to be equipped with a lot of equipment, the 1.2-meter fence height poses a safety risk to the workers. For example, if there are toxic substances (such as hydrogen sulfide) in the working environment, the workers need to wear breathing apparatus, gas masks, and carry tools used for maintenance, which will make their upper body heavy and their center of gravity easily shift. Although high-altitude workers are equipped with safety belts, there is still a risk of falling. If a higher fence is used directly for the construction of protective devices, it will greatly increase the construction difficulty and cost. Moreover, high-altitude operating platforms, walkways, stairs, etc., at the work site are generally made of steel plates. The expansion bolts mentioned in the above patent are not suitable for fixing on thinner steel plates. How to simply, quickly, and cost-effectively increase the height of the original fence is an urgent problem to be solved. Utility Model Content

[0005] This utility model provides a high-altitude operation protection device that solves the problems of high cost and difficulty in construction when raising the original fence.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model's high-altitude work protection device is as follows: A high-altitude work safety device includes a first protective frame and at least one first support frame connected to the first protective frame. The first support frame has a slot structure on the side near the first protective frame that is adapted to the first crossbeam of the original fence. The opening of the slot structure faces away from the first protective frame. The first support frame has a first stop structure on the side away from the first protective frame, which is used to stop a second crossbeam located below the first crossbeam on the left and right sides of the plane where the original fence is located.

[0007] This utility model innovatively provides a high-altitude work safety device. By setting a slot structure with an opening facing away from the first protective frame on the support frame, the safety device can be secured to the first crossbeam of the original fence. A stopping structure is set to stop the second crossbeam located below the first crossbeam on the left and right sides of the plane where the original fence is located, so that the first protective frame will not flip due to its own weight. The safety frame can be stably fixed above the original fence. By simply adding the safety frame to the original fence in the high-altitude work area, the height of the original fence can be increased, which can significantly reduce costs compared to using a heightened original fence. Moreover, the safety device can be installed simply by attaching the slot structure of the high-altitude work safety device to the first crossbeam and stopping the stopping structures on both sides of the second crossbeam. During disassembly, the safety device is removed so that the slot structure is no longer attached to the first crossbeam and the stopping structures are no longer stopping, thus completing the disassembly. The disassembly and assembly process is simple, labor-saving and efficient.

[0008] Preferably, the first support frame has a U-shaped structure, the U-shaped groove of the U-shaped structure constitutes the slot structure, the two side walls of the U-shaped structure extend along the direction perpendicular to the first crossbeam of the original fence and place the second crossbeam in the U-shaped groove of the U-shaped structure, and the two side walls of the U-shaped structure near the second crossbeam constitute the first stop structure.

[0009] Preferably, the first support frame includes a first support plate, and the first support plate has an L-shaped part with an opening facing away from the first protective frame on the side near the first protective frame. The L-shaped part and the first support plate constitute the slot structure. A first clamping member is installed on the side of the first support plate away from the first protective frame by a first fastener. The side of the first support plate away from the first protective frame and the first clamping member constitute the first stop structure.

[0010] Preferably, the first protective frame is hinged to the second protective frame on at least one of the two sides perpendicular to the first crossbeam of the original fence.

[0011] Preferably, the second protective frame is connected to a second support frame, and the second support frame is provided with a second stop structure on the side away from the second protective frame, which is used to stop the second crossbeam located below the first crossbeam on the left and right sides of the plane where the original fence is located.

[0012] Preferably, the second support frame includes a second support plate, and the second support plate is provided with a stopper on the side near the second protective frame for blocking the first crossbeam.

[0013] Preferably, the first protective frame includes two opposing vertical beams and a plurality of horizontal beams evenly distributed between the two vertical beams. Attached Figure Description

[0014] Figure 1 This is a front view of one embodiment of the high-altitude work protection device of this utility model; Figure 2 for Figure 1 Left view of part A in the middle; Figure 3 for Figure 1 A cross-sectional view of the BB plane; Figure 4 for Figure 1 A sectional view of the C-plane; In the attached diagram: 1. First protective frame; 2. Second protective frame; 3. First support frame; 31. First support plate; 32. First clamping plate; 33. Threaded hole; 34. Handle; 35. Bolt; 36. L-shaped piece; 4. Second support frame; 41. Second support plate; 42. Stop plate; 5. Original fence; 51. Original fence longitudinal beam; 52. Original fence cross beam; 511. First cross beam; 522. Second cross beam. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0016] The technical concept of the high-altitude work protection device provided by this utility model is as follows: Existing edge protection devices use expansion bolts to fix the base plate and positioning beam to the high-rise floor slab, and achieve rapid construction through the plug-in structure of the protective frame and positioning beam. However, this edge protection device needs to be fixed to the high-rise floor slab with expansion bolts, and the resulting protective fence is relatively low, posing a safety hazard of personnel falling when working at height with a lot of equipment. Directly using a higher fence would increase the construction difficulty and cost.

[0017] This utility model, by setting a slot structure and a stop structure on the support frame, utilizes the interaction between the slot structure and the stop structure and the original fence to make the protective frame stably fixed above the original fence in the high-altitude work area, thus achieving low-cost, simple and quick heightening of the original fence.

[0018] Based on the above inventive concept, such as Figure 1-4 As shown, the original fence 5 used for heightening includes four parallel original fence crossbeams 52 and two original fence longitudinal beams 53 located at both ends of the original fence crossbeams. The high-altitude operation protection device of this utility model includes a first protective frame 1 and at least one first support frame 3 connected to the first protective frame 1. The first support frame 3 is provided with a slot structure adapted to the first crossbeam 511 of the original fence 5 on the side close to the first protective frame 1. The opening of the slot structure faces away from the first protective frame 1, and the plane where the slot of the slot structure extends is parallel to the plane where the first protective frame is located. The first support frame 3 is provided with a blocking structure on the side away from the first protective frame 1. The second crossbeam 522, which is used to block the first crossbeam 511 of the original fence 5, is located on the left and right sides of the plane where the original fence 5 is located.

[0019] refer to Figure 1 As shown, the first protective frame 1 and the original fence beam 52 of the original fence 5 both extend in the left and right direction, and the second beam 522 in the original fence 5 is located below the first beam 511. In other embodiments, the first support frame 3 is a U-shaped piece with the opening of the U-shaped piece facing downward. The outer wall of the U-shaped piece away from the opening is fixedly connected to the bottom side wall of the first protective frame 1, so that the first protective frame 1 is in an upright state. The U-shaped groove of the U-shaped piece is adapted to the first beam 511 of the original fence 5, so that the U-shaped groove of the U-shaped piece can be locked on the first beam 511. The two side walls of the U-shaped piece extend in a direction perpendicular to the first beam 511 of the original fence (i.e., downward) and place the second beam 522 in the U-shaped groove of the U-shaped structure. The two side walls of the U-shaped structure near the second beam 522 constitute the first blocking structure, blocking the second beam 522 on the left and right sides of the plane where the original fence 5 is located.

[0020] When installing the high-altitude operation protection device in this embodiment, the entire protection device is positioned above the original fence 5, with the opening of the U-shaped groove of the first support frame 3 facing downwards. The entire protection device is then moved downwards until the U-shaped groove is engaged with the first crossbeam 511 of the original fence 5, and the second crossbeam 522 is located within the U-shaped groove of the U-shaped structure. At this point, the installation of the protection device is complete.

[0021] It is understood that the U-shaped groove of the U-shaped component can extend along the length of the first protective frame 1. For example, when the extension length of the U-shaped groove of the U-shaped component is equal to the length of the first protective frame 1, a single first support frame 3 can achieve stable heightening of the first protective frame 1. When the extension length of the U-shaped groove of the U-shaped component is much shorter than the length of the first protective frame 1, a single first support frame 3 can also achieve heightening of the first protective frame 1. However, due to the weight of the first protective frame 1, the first support frame 3 bears the force of the first protective frame 1 flipping downwards. Especially when the first support frame 3 is not installed in the middle position along the length of the first protective frame 1, the force on the left and right sides of the first support frame 3 is uneven, which can easily lead to damage. Preferably, multiple first support frames 3 can be provided.

[0022] The aforementioned U-shaped component is still quite heavy, making the entire high-altitude work safety device quite heavy. This safety device needs to be installed above the original fence 5, making installation laborious. Preferably, in such cases... Figure 1-4 In the illustrated embodiment, the first support frame 3 includes a first support plate 31 arranged parallel to the plane of the first protective frame 1. The side of the first support plate 31 closest to the first protective frame 1 has an L-shaped member 36 with an opening facing away from the first protective frame 1 (i.e., downwards). The L-shaped member 36 and the first support plate 31 form the slot structure. A first clamping member is installed on the side of the first support plate 31 away from the first protective frame 1 via a first fastener. The side of the first support plate 31 away from the first protective frame and the first clamping member form the first stop structure. The L-shaped member 36 and the support plate reduce the weight of the first support frame 3, thus reducing the labor intensity of the workers. One first support frame 3 is provided on each of the left and right sides of the bottom sidewall of the first protective frame 1.

[0023] It is understood that the blocking structure can also be a slot structure. The first support plate 31 is also provided with an L-shaped part with an opening facing away from the first protective frame 1 (i.e. downward) on the side away from the first protective frame 1. The L-shaped part and the lower part of the first support plate 31 constitute the lower slot structure. The two side walls of the lower slot structure constitute the first blocking structure.

[0024] In the blocking structure of this embodiment, the first clamping member is a first clamping plate 32, the first fastener is two bolts 35, the first support plate 31 away from the first protective frame 1 and the first clamping plate 32 are provided with two opposing threaded holes 33, and at least two sets of opposing threaded holes 33 are provided in the vertical direction. The two bolts 35 pass through the two sets of opposing threaded holes 33 respectively, and the ends of the two bolts 35 are respectively provided with two handles 34. By turning the handles 34, the second crossbeam 522 is clamped between the first clamping plate 32 and the first support plate 31 at the position between the two bolts. It can be understood that three, four or more sets of opposing threaded holes 33 can be provided, such as... Figure 1-4 In the embodiment shown, there are four sets of opposing threaded holes 33. By setting four sets, the position of the two bolts 35 can be adjusted according to the distance between the first crossbeam 511 and the second crossbeam 522 in the original fence 5, which is suitable for original fences 5 of different specifications.

[0025] To further increase the height of the original fence 5, which may be irregular in shape such as arc or polygon, preferably, at least one side of the first protective frame 1 perpendicular to the first crossbeam 511 of the original fence 5 is hinged to a second protective frame 2. By hinged to the second protective frame 2, the second protective frame 2 can rotate around the sidewall of the first protective frame 1 at different angles, and the second protective frame 2 and the first protective frame 1 can be folded into different shapes, suitable for original fences 5 of different shapes. Figure 1-4 In the embodiment shown, the first protective frame 1 is hinged to the second protective frame 2 on both sides perpendicular to the first crossbeam 511 of the original fence 5.

[0026] To fix the position of the second protective frame 2 when it hinges and rotates relative to the first protective frame 1, the second protective frame 2 is fixedly connected to a first support frame 3 on the side near the original fence 5. To further simplify the support frame structure and reduce the weight of the device, preferably, in such a way... Figure 1-4 In the illustrated embodiment, the second protective frame 2 is connected to a second support frame 4. A second stop structure is provided on the side of the second support frame 4 away from the second protective frame 2, used to stop the second crossbeam 522 located on the left and right sides of the plane where the original fence is situated, below the first crossbeam 511. With the first protective frame 1 fixed by the first support frame 3, the stop structure can fix the position of the second protective frame 2 relative to the first protective frame 1 during hinged rotation.

[0027] It is understandable that the second support frame 4 can have the same structure as the first support frame 3, with a slot structure, or it can be without a slot structure. When the slot structure is not provided, the upper sidewall of the original fence may not contact the bottom sidewall of the second protective frame 2, thus failing to support the second protective frame 2. The weight of the second protective frame 2 will pull on the hinge structure, reducing its lifespan. Preferably, the second support frame 4 is provided with a slot structure.

[0028] To further reduce the weight of the second support frame 4, preferably, the second support frame 4 includes a second support plate 41 arranged parallel to the second protective frame 2. The side of the second support plate 41 closest to the second protective frame 2 is provided with a stop for blocking the first crossbeam 511. The stop is a stop plate 42. Support for the second protective frame 2 is provided by the stop, eliminating the need for a slot structure. It is understood that the second stop structure can be the same as the first stop structure. A second clamping member is installed on the side of the second support plate 41 away from the first protective frame via a second fastener. The side of the second support plate away from the second protective frame and the second clamping member constitute the second stop structure. The second fastener and the second clamping member have the same structure and fastening method as the first fastener and the first clamping member in the first support frame 3, respectively. The second fastener consists of two bolts 35, and the second clamping member is a second clamping plate.

[0029] The first protective frame 1 can be a frame structure with multiple horizontal beams and multiple vertical beams. To further reduce weight, in such cases... Figure 1-4 In the embodiment shown, the first protective frame 1 includes two opposing vertical beams and a plurality of horizontal beams evenly distributed between the two vertical beams.

[0030] When installing the high-altitude work safety device of this utility model, Figure 1 Taking the structure and orientation shown as an example, the entire protective device is positioned above the original fence 5, with the opening of the slot structure of the first support frame 3 facing downwards. The bolts 35, the first clamping plate 32, and the second clamping plate on the lower side of the first support frame 3 and the second support frame 4 are removed. The entire protective device is moved downwards until the slot structure is engaged with the first crossbeam 511 of the original fence 5. At this point, the positions of the two bolts 33 on the upper and lower parts of each support frame are adjusted according to the positions of the first crossbeam 511 and the second crossbeam 522 of the original fence 5, so that the second crossbeam 522 is positioned between the two bolts 33 within the support plate and the clamping plate. After adjustment, the bolts 33 are tightened to secure the first clamping plate 32 and the second clamping plate to the first support plate 33 and the second support plate 41 respectively, thus completing the installation of the protective device. This achieves the increase in height of the original fence, making installation labor-saving and convenient.

[0031] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An aerial work platform guard, comprising: It includes a first protective frame and at least one first support frame connected to the first protective frame. The first support frame has a slot structure on the side near the first protective frame that is adapted to the first crossbeam of the original fence. The opening of the slot structure faces away from the first protective frame. The first support frame has a first stop structure on the side away from the first protective frame, which is used to stop a second crossbeam located below the first crossbeam on the left and right sides of the plane where the original fence is located.

2. Fall protection apparatus as claimed in claim 1, wherein, The first support frame has a U-shaped structure, the U-shaped groove of the U-shaped structure forms the slot structure, the two side walls of the U-shaped structure extend along the direction perpendicular to the first crossbeam of the original fence and place the second crossbeam in the U-shaped groove of the U-shaped structure, and the two side walls of the U-shaped structure near the second crossbeam form the first stop structure.

3. The elevated work protection device of claim 1, wherein, The first support frame includes a first support plate. The first support plate has an L-shaped part with an opening facing away from the first protective frame on the side near the first protective frame. The L-shaped part and the first support plate form the slot structure. A first clamping member is installed on the side of the first support plate away from the first protective frame by a first fastener. The side of the first support plate away from the first protective frame and the first clamping member form the first stop structure.

4. Fall protection arrangement according to any one of claims 1-3, characterized in that The first protective frame is located on at least one of the two sides perpendicular to the first crossbeam of the original fence, to which the second protective frame is hinged.

5. The high-altitude work protection device as described in claim 4, characterized in that, The second protective frame is connected to a second support frame. The second support frame has a second stop structure on the side away from the second protective frame, which is used to stop the second crossbeam located on the left and right sides of the plane where the original fence is located.

6. A high place work protection device according to claim 5, wherein The second support frame includes a second support plate, and the side of the second support plate near the second protective frame is provided with a stop for blocking the first crossbeam.

7. Fall protection apparatus as claimed in any one of claims 1-3, characterized in that The first protective frame includes two opposing vertical beams and a plurality of horizontal beams evenly distributed between the two vertical beams.

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