A rooftop work fall protection device

Abstract

This invention discloses a device comprising: a fixed base for engaging with a roof to secure the entire device to the roof; a slewing bearing positioned above the fixed base; a rotating disk positioned above the slewing bearing; and a suspension component including a suspension point on the outside of the rotating disk, a rope winding assembly on one side of the suspension point, and a fall arrestor assembly on one side of the rope winding assembly. The device offers flexible steering: the fall arrestor is rotatable, eliminating the need for readjustment or reinstallation when changing work positions; it is ready for use after workers fasten their safety belts and connect to the fall arrestor; multiple workers can work simultaneously without entanglement; the roof fall arrestor has a simple structure, is easy to maintain, and can be used long-term; and it offers high safety: each floor has a set of suspension points, providing double protection and ensuring personal safety.

Description

Technical Field

[0001] This invention relates to the technical field of forest stand growth models, and more particularly to a fall protection device for rooftop operations. Background Technology

[0002] Currently, the construction of substation buildings varies. Some roofs have parapet walls, while others are flat. Some parapet walls are 1 meter high, while others are only about 0.2 meters high. Due to work requirements, when relevant operation and maintenance personnel work on the roof of substation buildings, in accordance with regulations and system requirements, the safety belts used for high-altitude operations must not have any parts arbitrarily removed, and any damaged parts must not be used. The safety belts must be fastened to hooks that are vertically above without sharp or pointed edges, and must not be used while hanging low. Ropes are not allowed to be used as substitutes, and the fastening must meet the requirements. However, there are no sturdy and secure safety belt anchoring points on the roof, around the building, or at the roof edges (the current practice is: after workers go up to the roof, fixed expansion hooks are installed around the parapet wall, and steel wire ropes are used to connect the various points, with the first and second safety belts attached to the steel wire ropes; if there is no parapet wall, the workers hold onto the first and second safety belts; scaffolding is erected around the building). During high-altitude operations, workers need to frequently change working positions, and there are no devices or structures to fix the first and second safety belts, causing workers to violate regulations to varying degrees during the work process. At the same time, the personal safety of workers is seriously threatened, and safety cannot be guaranteed.

[0003] Currently, there are no sturdy and secure safety belt anchoring points for high-altitude operations on the rooftops and around buildings of substations. During high-altitude operations, workers need to frequently change work positions, and there are no devices or structures to secure the first and second safety belts. This leads to various degrees of violations by workers during the work process, and the personal safety of workers is seriously threatened and cannot be guaranteed. Therefore, it is necessary to develop a 360° rooftop fall protection device that can easily secure the safety belt, is flexible in turning, and can move laterally. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned roof operation fall protection devices, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a fall protection device for rooftop operations.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fixed base for cooperating with the roof to fix the entire device on the roof; a slewing bearing disposed above the fixed base; a rotating disk disposed above the slewing bearing; and a suspension component comprising a suspension point disposed on the outside of the rotating disk, a rope winding assembly disposed on one side of the suspension point, and a fall protection component disposed on one side of the rope winding assembly.

[0007] As a preferred embodiment of the rooftop operation fall protection device of the present invention, the suspension point includes a protective rope located outside the rotating disk and a ring located at one end of the protective rope; wherein, there are two protective ropes, one of which is fixedly connected to the ring at one end and connected to the rope winding assembly at the other end, and the other of which is fixedly connected to the ring at one end and connected to the fall protection assembly at the other end.

[0008] As a preferred embodiment of the roof operation fall protection device of the present invention, the rope winding assembly includes a housing inside the rotating disk, a spring inside the housing, and a self-locking component on one side of the spring.

[0009] As a preferred embodiment of the rooftop operation fall protection device of the present invention, the self-locking component includes a control button and a pin located inside the housing, the pin being electrically connected to the control button.

[0010] As a preferred embodiment of the roof operation fall protection device of the present invention, the fall protection component includes a second housing disposed on one side of the first housing, a ratchet cover disposed inside the second housing, a ratchet spindle disposed inside the ratchet cover, a ratchet disposed outside the ratchet spindle, and a control component disposed on one side of the ratchet.

[0011] As a preferred embodiment of the roof operation fall protection device of the present invention, the control component includes a coil spring on one side of the ratchet, a pawl on the other side of the ratchet, a tension spring on one side of the pawl, and a cable outlet protection ring on the outside of the housing.

[0012] As a preferred embodiment of the rooftop operation fall protection device of the present invention, the rotating disks are provided in multiple ways, and a rotary bearing is provided between each of the multiple rotating disks, and a suspension component is provided on each of the multiple rotating disks.

[0013] As a preferred embodiment of the roof operation fall protection device of the present invention, the fixed base is provided with a fixing ear, and a plurality of fixing ears are provided, wherein the plurality of fixing ears are welded together from steel.

[0014] As a preferred embodiment of the rooftop operation fall protection device of the present invention, the rotating disk, the slewing bearing, and the fixed base are all made of aluminum alloy.

[0015] As a preferred embodiment of the rooftop operation fall protection device of the present invention, the rotating disk, the slewing bearing, and the fixed base are all manufactured using CNC machining technology.

[0016] The beneficial effects of this invention are: flexible steering: the fall arrestor can rotate, so there is no need to readjust or reinstall the fall arrestor when changing work positions; workers can use it after fastening their safety belts and connecting to the fall arrestor; multiple workers can work at the same time without getting tangled; the roof fall arrestor has a simple structure, is easy to maintain, and can be used for a long time; high safety: each floor is equipped with a set of suspension points, and each suspension point is equipped with one or two safety ropes, providing double protection and ensuring personal safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of the rooftop operation fall protection device of the present invention.

[0019] Figure 2 As described in this invention Figure 1 Internal structure diagram.

[0020] Figure 3 This is a schematic diagram of the rotating disk structure described in this invention.

[0021] Figure 4 This is a schematic diagram of the rope winding assembly described in this invention.

[0022] Figure 5 This is a schematic diagram of the fall protection component structure described in this invention. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0027] Example 1

[0028] Reference Figure 1-5 A rooftop work fall protection device is provided, including a fixed base 100 for cooperating with the roof to fix the device to the roof; a slewing bearing 101 disposed above the fixed base 100; a rotating disk 102 disposed above the slewing bearing 101; and a suspension component 200, which includes a suspension point 201 disposed outside the rotating disk 102, a rope winding assembly 202 disposed on one side of the suspension point 201, and a fall protection component 203 disposed on one side of the rope winding assembly 202.

[0029] Based on site conditions and considering factors such as protecting worker safety and improving ease of operation, this fall arrest device will be fixed to the center of the roof using expansion bolts. The main fall arrest device consists of 4 layers of fall arrest components 203. Each suspension point 201 is equipped with 1 and 2 safety ropes, 1 safety belt fall arrestor, and 2 safety belt fall arrestors. Each layer of the structure is connected and fixed by a slewing bearing 101, which allows for independent adjustment of the working position of each suspension point 201 at 360 degrees without blind spots. There are a total of 4 layers, which can be used by 1-4 people simultaneously in different directions on site at 360 degrees. When using, simply hang the 1 and 2 safety hooks on the fall arrest device on the existing safety belt.

[0030] Specifically, the suspension point 201 includes a protective rope 201a located outside the rotating disk 102, and a ring 201b located at one end of the protective rope 201a. There are two protective ropes 201a. One end of the protective rope 201a is fixedly connected to the ring 201b, and the other end is connected to the rope winding assembly 202. The other protective rope 201a is fixedly connected to the ring 201b, and the other end is connected to the fall arrest assembly 203. When a person accelerates downward, the rope can follow the person to different parts without the fall arrest mechanism to prevent the person from falling further. In addition to the rope, the fall arrest mechanism can achieve double protection. There are a total of 4 suspension points 201 on the four floors. Each point can be safely operated by one person. One fall arrest device can ensure the safety of 1-4 people on site, which is safe, reliable and ensures personal safety.

[0031] Furthermore, the rope retraction assembly 202 includes a housing 202a inside the rotating disk 102, a spring 202b inside the housing, and a self-locking component 202c on one side of the spring 202b. The self-locking component 202c includes a control button 202c-1 and a pin 202c-2 inside the housing 202a. The pin 202c-2 is electrically connected to the control button 202c-1. The self-locking component 202c allows the rope to be locked at any position to prevent accidental slippage. The self-locking mechanism may include a ratchet 203d system. When the rope is pulled out, the ratchet 203d allows the rope to move in one direction but not in the opposite direction, thereby achieving self-locking. The self-locking release mechanism allows the user to release the self-locking by a simple action such as pulling forward, enabling the rope to move freely and be retracted by the spring.

[0032] Furthermore, the fall arrestor 203 includes a second housing 203a located on one side of the first housing 202a, a ratchet cover 203b located inside the second housing 203a, a ratchet spindle 203c located inside the ratchet cover 203b, a ratchet 203d located outside the ratchet spindle 203c, and a control component 203e located on one side of the ratchet 203d. The ratchet spindle 203c is generally made of 45 steel and tempered, with a hard surface, and serves as the axle of the wheel. The ratchet cover 203b is provided to prevent the wire rope from getting tangled with the teeth of the ratchet 203d during winding and unwinding, thus isolating the wire rope. The fall arrestor function is achieved through the control component 203e.

[0033] Furthermore, the control component 203e includes a coil spring 203e-1 on one side of the ratchet 203d, a pawl 203e-2 on the other side of the ratchet 203d, a tension spring 203e-3 on one side of the pawl 203e-2, and a cable outlet protection ring 203e-4 on the outside of the housing. The coil spring 203e-1 is mainly used to control the rotation of the ratchet 203d to achieve the automatic retraction and release function. The pawl 203e-2 adopts a double stop key, which is used to stop the clockwise rotation of the ratchet 203d to achieve the braking function of the speed difference type fall arrestor. The wire rope is a thin and soft aviation wire rope. The fall arrestor is frequently retracted and released during use, which can easily damage the wire rope. The cable outlet protection ring 203e-4 is generally designed as a symmetrical upper and lower trumpet-shaped ring 201b made of brass. The coil spring 203e-1 is mainly used to control the balance of the double stop key to achieve the automatic braking function.

[0034] Example 2

[0035] Reference Figure 1-5This embodiment differs from the first embodiment in that: multiple rotating disks 102 are provided, each connected by a rotary bearing 101, and each rotating disk 102 is equipped with a suspension component 200. Each layer of the structure is connected and fixed using rotary bearings 101, allowing for independent, 360-degree adjustment of the working position of each suspension point 201 without any blind spots. There are a total of 4 layers, accommodating 1-4 people in 360°...

[0036] It can be used simultaneously from different directions on site. When using it, simply attach hooks 1 and 2 on the fall arrestor to the existing safety belt.

[0037] Specifically, the fixed base 100 is provided with a fixed ear 300. There are multiple fixed ears 300. The multiple fixed ears 300 are welded from steel and can be fixed to the center of the roof with expansion screws. They have built-in spring washers and can be firmly installed on the roof after being locked with expansion screws. They can withstand a tensile force of more than 6 times the weight of a human body.

[0038] The rest of the structure is the same as in Example 1.

[0039] Example 3

[0040] Reference Figure 1-5 This embodiment differs from the previous embodiments in that: the rotating disk 102, the rotary bearing 101, and the fixed base 100 are all made of aluminum alloy; the rotating disk 102, the rotary bearing 101, and the fixed base 100 are all made of CNC machining technology, which makes the structure easy to assemble, the connection points safe and reliable, and the load-bearing capacity large.

[0041] The rest of the structure is the same as in Example 2.

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fall protection device for rooftop operations, characterized in that: include, A fixed base (100) is used to fit with the roof so that the entire device is fixed on the roof; A slewing bearing (101) is disposed above the fixed base (100); A rotating disk (102) is disposed above the slewing bearing (101); The suspension component (200) includes a suspension point (201) located outside the rotating disk (102), a rope winding assembly (202) located on one side of the suspension point (201), and a fall arrestor assembly (203) located on one side of the rope winding assembly (202); Multiple rotating disks (102) are provided, and a rotary bearing (101) is provided between each of the multiple rotating disks (102). A suspension component (200) is provided on each of the multiple rotating disks (102).

2. The rooftop work fall protection device as described in claim 1, characterized in that: The suspension point (201) includes a protective rope (201a) located on the outside of the rotating disk (102) and a ring (201b) located at one end of the protective rope (201a). Among them, there are two protective ropes (201a). One of the protective ropes (201a) is fixedly connected to a ring (201b) at one end and connected to a rope winding assembly (202) at the other end. The other protective rope (201a) is fixedly connected to a ring (201b) at one end and connected to a fall arrest assembly (203) at the other end.

3. The rooftop work fall protection device as described in claim 2, characterized in that: The winding assembly (202) includes a housing (202a) disposed inside the rotating disk (102), a spring (202b) disposed inside the housing (202a), and a self-locking member (202c) disposed on one side of the spring (202b).

4. The rooftop work fall protection device as described in claim 3, characterized in that: The self-locking component (202c) includes a control button (202c-1) and a pin (202c-2) disposed inside the housing (202a). The pin (202c-2) is electrically connected to the control button (202c-1).

5. The rooftop work fall protection device as described in claim 4, characterized in that: The fall arrestor assembly (203) includes a second housing (203a) disposed on one side of the first housing (202a), a ratchet cover (203b) disposed inside the second housing (203a), a ratchet spindle (203c) disposed inside the ratchet cover (203b), a ratchet (203d) disposed outside the ratchet spindle (203c), and a control component (203e) disposed on one side of the ratchet (203d).

6. The rooftop work fall protection device as described in claim 5, characterized in that: The control component (203e) includes a coil spring (203e-1) on one side of the ratchet (203d), a pawl (203e-2) on the other side of the ratchet (203d), a tension spring (203e-3) on one side of the pawl (203e-2), and a cable outlet protection ring (203e-4) on the outside of the housing (203a).

7. The rooftop work fall protection device as described in claim 6, characterized in that: The fixed base (100) is provided with a fixing ear (300), and there are multiple fixing ears (300). The multiple fixing ears (300) are welded from steel and can be fixed to the center of the roof by expansion screws.

8. The rooftop work fall protection device as described in claim 7, characterized in that: The rotating disk (102), the slewing bearing (101), and the fixed base (100) are all made of aluminum alloy.

9. The rooftop work fall protection device as described in claim 8, characterized in that: The rotating disk (102), the slewing bearing (101), and the fixed base (100) are all manufactured using CNC machining technology.

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