Aerial work anti-falling system

Abstract

The utility model relates to the field of safety protection, concretely relates to a high altitude operation anti -fall system, including the ladder, guide rail, differential mechanism and the shoulder strap, guide rail: along the length direction of ladder is provided for detachable connection with ladder, differential mechanism: the slidable setting on guide rail, shoulder strap: with differential mechanism links. The utility model through along the ladder setting detachable guide rail and the differential mechanism that can slide on the guide rail, can realize the synchronous movement of the differential mechanism with the operation personnel when climbing, and lock on the guide rail in the moment of stumbling automatically, thereby provides the whole process, automatic, uninterrupted anti -fall protection for the ladder climbing process, fundamentally eliminates the security protection blank in this process.

Description

Technical Field

[0001] This utility model relates to the field of safety protection, and in particular to a fall protection system for high-altitude operations. Background Technology

[0002] In the petrochemical industry, workers frequently need to use vertical or inclined ladders to access high-altitude platforms, storage tanks, reactors, or other equipment areas to carry out their work.

[0003] Currently, during ladder climbing, workers are generally without any effective fall protection. Lacking a protective system that moves in sync with the worker, they can only climb barehanded, relying entirely on their physical strength, balance, and grip for safety. If they lose their footing due to fatigue, slippery conditions, missteps, sudden illness, or unexpected impact, they will fall directly, causing serious injury or death. This lack of safety protection in these ladder climbing sections has become one of the most dangerous and weakest links in the entire high-altitude work chain.

[0004] Therefore, there is an urgent need in this field for a system that can provide full, automatic, and uninterrupted fall protection for ladder climbers, fundamentally eliminating the risk of falling during the climbing process. Utility Model Content

[0005] The purpose of this invention is to overcome the technical problem in the prior art that there is no safety gap when workers climb ladders, and they are prone to falling due to external or internal factors, so this invention provides a fall protection system for high-altitude operations.

[0006] This utility model provides a high-altitude operation fall protection system, including a ladder, guide rail, differential gear and harness; Guide rail: It is arranged along the length of the ladder and is detachably connected to the ladder; Differential: Slidingly mounted on the guide rail; Shoulder strap: Connected to the differential.

[0007] This utility model discloses a fall protection system for high-altitude operations. In use, the operator first installs the guide rail along the length of the ladder in the middle of the ladder using a buckle assembly, ensuring the guide rail is securely fixed to the ladder's footrests. Then, the operator correctly puts on the harness and reliably connects the harness to the differential, which is pre-installed on the guide rail. Once ready, the operator begins climbing the ladder. During the climb, the differential, using its internal mechanism, slides smoothly and synchronously up or down the guide rail, following the operator. In this normal movement, it does not obstruct the operator's actions. If the operator loses their footing and falls, the self-locking mechanism inside the differential is instantly triggered, locking quickly on the guide rail and immediately stopping the operator from falling further. After the danger has passed, the operator can release the differential's lock and continue climbing or safely descend to the ground.

[0008] Preferably, a support block is provided in the middle of the side of the guide rail that connects to the ladder, and the support block is arranged along the length direction of the guide rail.

[0009] The support block enhances the structural strength and stability of the guide rail, preventing it from bending or deforming under stress. It also provides a reliable connection base for the snap-fit ​​assembly, ensuring a secure connection between the guide rail and the ladder. The support block also props the guide rail body away from the ladder, preventing the ladder from affecting the differential's sliding on the guide rail.

[0010] Preferably, the system further includes several buckle assemblies, each buckle assembly including a connecting plate. The connecting plate has a limiting groove in the middle that matches the shape of the foot pedal of the ladder, and fastening bolts connecting the top surface of the support block are provided on both sides of the connecting plate.

[0011] By connecting the guide rail and the foot pedals of the ladder with a connecting plate with a limit groove, a detachable connection between the guide rail and the ladder is achieved. This not only makes installation and disassembly simple, but also improves the stability of the guide rail on the ladder by connecting multiple foot pedals of the guide rail with multiple buckle components.

[0012] Preferably, an anti-slip rubber pad is adhered to the inner wall of the limiting groove.

[0013] The anti-slip rubber pads effectively increase the friction between the pads and the footrests of the ladder, preventing the buckle components from loosening under vibration and ensuring a stable connection between the guide rail and the ladder.

[0014] Preferably, it further includes two limiting components, which are respectively disposed at both ends of the guide rail to limit the differential from leaving the guide rail.

[0015] Two limit components effectively prevent the differential from accidentally slipping off the guide rail end, ensuring the protection system is always effective and increasing the overall safety of the system.

[0016] Preferably, the limiting component includes a locking block and a limiting bolt. The locking block has a slot that matches the shape of the guide rail. The locking block is engaged with the support block through the slot. The limiting bolt connects the locking block and the support block.

[0017] Two limit components are detachably connected to both ends of the guide rail, which limits the differential located on the guide rail. This provides a simple and easy-to-install limit solution, which is convenient for on-site installation and subsequent maintenance.

[0018] Preferably, it also includes a cushioning bag, which is a structural component made of elastic material. One end of the cushioning bag is connected to the differential via a first hook, and the other end is connected to the shoulder strap via a second hook.

[0019] In the event of a fall, the cushioning pack can effectively absorb impact energy through its own deformation, significantly reducing the impact force on the worker's body and preventing secondary injuries.

[0020] Preferably, the guide rail includes several segment rods, which are sequentially spliced ​​together to form a long strip, and adjacent segment rods are detachably connected.

[0021] The segmented rod design makes the guide rail modular, which is convenient for transportation and storage, and the guide rail length can be flexibly adjusted according to the actual length of the ladder. It can be installed on ladders of different heights, reducing manufacturing and installation costs.

[0022] Preferably, two adjacent segment rods are nested together, and a locking bolt is provided at the connection point, wherein the locking bolt connects the two adjacent segment rods.

[0023] Nested connections ensure seamless alignment between segments, while locking bolts provide a robust mechanical connection, preventing segments from separating or wobbling during use. This guarantees the overall rigidity and stability of the guide rail and ensures smooth differential movement.

[0024] Preferably, the surface of the guide rail is coated with an anti-corrosion coating.

[0025] The anti-corrosion coating effectively resists corrosive media (such as corrosive gases and moisture) in the petrochemical environment, extends the service life of the guide rail, reduces the frequency of maintenance, and ensures long-term reliable operation of the system in harsh environments.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a high-altitude operation fall protection system. By setting a detachable guide rail along the ladder and a differential that can slide on the guide rail, the differential can move synchronously with the worker when climbing and automatically lock onto the guide rail at the moment of fall, thus providing full, automatic and uninterrupted fall protection for the ladder climbing process, fundamentally eliminating the safety protection gap in this process. 2. This utility model provides a fall protection system for high-altitude operations. Through the detachable connection between the guide rail and the ladder, the protection system can be flexibly installed and disassembled without changing the original ladder structure. It is suitable for new facilities and easy to install on the ladders of existing facilities. It has strong versatility and low modification cost. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a high-altitude operation fall prevention system according to this utility model; Figure 2 yes Figure 1 Enlarged view of area A in the middle; Figure 3 This is a schematic diagram of the structure of the guide rail described in this utility model; Figure 4 yes Figure 3 Enlarged view of area B in the middle; Figure 5 This is a schematic diagram of the connection relationship of the segment rod described in this utility model; Marked in the image: 1-Ladder, 2-Guide rail, 201-Support block, 21-Segment rod, 211-Locking bolt, 212-Lower limit area, 213-Groove, 3-Differential gear, 4-Shoulder strap, 5-Snap-on assembly, 51-Connecting plate, 52-Fastening bolt, 53-Anti-slip rubber pad, 6-Limit assembly, 61-Clocking block, 62-Limit bolt, 7-Buffer bag, 71-First hook, 72-Second hook. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1 like Figure 1 and Figure 2 As shown, a fall protection system for working at height includes a ladder 1, a guide rail 2, a differential 3, and a harness 4. Guide rail 2: It is arranged along the length of the ladder 1 and is detachably connected to the ladder 1; Differential 3: It is slidably mounted on the guide rail 2, adopts a split housing design, has a built-in bidirectional braking mechanism, and is equipped with a universal interface on the side; Shoulder strap 4: Connected to the differential 3.

[0035] In an optional implementation, an anti-corrosion coating can be applied to the surface of the guide rail 2. The anti-corrosion coating can effectively resist corrosive media (such as corrosive gases, moisture, etc.) in the petrochemical environment, extend the service life of the guide rail 2, reduce the maintenance frequency, and ensure that the system operates reliably for a long time in harsh environments.

[0036] In optional implementations, such as Figure 3 and Figure 5 As shown, a support block 201 can be provided in the middle of the side of the guide rail 2 that connects to the ladder 1. The support block 201 is provided along the length of the guide rail 2. The support block 201 can enhance the structural strength and stability of the guide rail 2, prevent the guide rail 2 from bending or deforming when subjected to force, and at the same time provide a reliable connection base for the buckle assembly 5, ensuring a firm connection between the guide rail 2 and the ladder 1. The support block 201 can also be used to prop the main body of the guide rail 2 away from the ladder 1, preventing the ladder 1 from affecting the sliding of the differential 3 on the guide rail 2.

[0037] In optional implementations, such as Figure 3 and Figure 4 As shown, it also includes several buckle components 5. Each buckle component 5 includes a connecting plate 51. The connecting plate 51 has a limiting groove in the middle that matches the shape of the foot pedal of the ladder 1. The connecting plate 51 has fastening bolts 52 on both sides that connect to the top surface of the support block 201. The guide rail 2 and the foot pedal of the ladder 1 are connected together by the connecting plate 51 with the limiting groove, realizing a detachable connection between the guide rail 2 and the ladder 1. This not only makes installation and disassembly simple, but also improves the stability of the guide rail 2 on the ladder 1 by connecting the guide rail 2 and the multiple foot pedals of the ladder 1 through multiple buckle components 5.

[0038] In optional implementations, such as Figure 4 As shown, an anti-slip rubber pad 53 can be adhered to the inner wall of the limiting groove of the connecting plate 51, which can effectively increase the friction between the pad and the foot pedal of the ladder 1, prevent the buckle assembly 5 from loosening in a vibration environment, and ensure the stable connection between the guide rail 2 and the ladder 1.

[0039] In optional implementations, such as Figure 3 and Figure 4 As shown, limiting components 6 can also be set at both ends of the guide rail 2. The limiting component 6 includes a locking block 61 and a limiting bolt 62. The locking block 61 is provided with a locking groove that matches the shape of the guide rail 2. The locking block 61 is locked onto the support block 201 through the locking groove. The limiting bolt 62 connects the locking block 61 and the support block 201. The two limiting components 6 are detachably connected to both ends of the guide rail 2 to limit the differential 3 located on the guide rail 2. This provides a simple and easy-to-install limiting solution, which is convenient for on-site installation and subsequent maintenance.

[0040] In one or more implementations, such as Figure 1 and Figure 2 As shown, a buffer pack 7 can be connected between the shoulder strap 4 and the differential 3. The buffer pack 7 is a structural component made of elastic material. One end of the buffer pack 7 is connected to the differential 3 via a first hook 71, and the other end is connected to the shoulder strap 4 via a second hook 72. Both the first hook 71 and the second hook 72 include an adapter and a safety redundancy hook. The adapter achieves 360° rotation through a bearing structure to ensure uninterrupted protection when switching between multiple-level ladders 1. The redundancy hook adopts a double-safety design to prevent accidental detachment during the switching process.

[0041] In one or more implementations, such as Figure 3 and Figure 5 As shown, the guide rail 2 includes several segment rods 21, which are sequentially spliced ​​to form a long strip. Adjacent segment rods 21 are detachably connected. The segment rod 21 design makes the guide rail 2 modular, which is convenient for transportation and storage. The length of the guide rail 2 can be flexibly adjusted according to the actual length of the ladder 1, and it can be installed on ladders 1 at different heights, reducing manufacturing and installation costs.

[0042] In optional implementations, such as Figure 5 As shown, two adjacent segment rods 21 are nested together and a locking bolt 211 is provided at the connection. The locking bolt 211 connects two adjacent segment rods 21. Three locking bolts 211 are provided at each connection, located on the support block 201 and the guide rail 2 body on both sides of the support block 201 respectively. A countersunk hole is opened at each position where a locking bolt 211 is provided, and the locking bolt 211 is completely inserted into the countersunk hole when installed.

[0043] Example 2 A method for working at height, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, using a fall protection system for working at height as described in Example 1 includes the following steps: S1. System Installation and Inspection: First, according to the actual length of the ladder 1 to be climbed, connect the corresponding number of segment rods 21 through nesting and tighten the locking bolts 211 to assemble a guide rail 2 of complete length. Then, install the guide rail 2 along the length of the ladder 1 in the middle of the ladder 1 through the buckle assembly 5, ensuring that the limiting groove of the connecting plate 51 is tightly engaged with the foot bar of the ladder 1, and tighten the fastening bolts 52 to press the anti-slip rubber pad 53 to provide sufficient friction. Subsequently, install the limiting assembly 6 at both ends of the guide rail 2, insert the slot of the locking block 61 into the support block 201 and tighten the limiting bolts 62 to ensure that it is firm and reliable. Finally, check the straightness of the guide rail 2, the tightness of all connection points and the integrity of the anti-corrosion coating.

[0044] S2. Wearing and connecting personal protective equipment: The operator wears the back strap 4 correctly, ensuring that all load-bearing straps are adjusted to the appropriate tightness. The second hook 72 at one end of the cushion bag 7 is reliably connected to the load-bearing ring on the back of the back strap 4, and the redundant hook is checked to ensure that it is locked. Then, the first hook 71 at the other end of the cushion bag 7 is connected to the universal interface of the differential 3 that has been pre-assembled on the guide rail 2. The connection is confirmed to be reliable. The connection point is gently pulled by hand to confirm that the differential 3 can slide smoothly on the guide rail 2 without any jamming.

[0045] S3. Climbing operation and synchronous protection: When the operator begins to climb ladder 1, the differential 3, relying on its internal mechanism, moves synchronously and smoothly up or down on the guide rail 2 to follow the operator, providing uninterrupted following protection for the operator, and will not generate significant resistance to hinder the operation during normal movement.

[0046] S4. Fall Braking and Impact Buffering: If a worker falls during climbing, the bidirectional braking mechanism built into the differential 3 will be triggered instantly, automatically locking it on the guide rail 2 to immediately stop the worker from falling further. At the same time, the buffer pack 7 will quickly unfold and undergo elastic deformation under the impact force, effectively absorbing and dissipating the huge impact energy generated by the fall, and significantly reducing the impact load on the worker's body.

[0047] S5. Emergency Response and Follow-up Operations: After the fall has stabilized, the operators or rescuers can release the locked state through the reset mechanism on the differential 3, depending on the situation on site. Then, the operators can continue to climb to the target platform or safely descend to the ground with the assistance of ground personnel.

[0048] S6. System Disassembly and Storage: After all tasks are completed, the operator disconnects the shoulder strap 4 from the cushion bag 7 and removes the shoulder strap 4. Then, the operator disassembles the limiting components 6 at both ends of the guide rail 2 and the buckle components 5 connecting the guide rail 2 and the ladder 1 in sequence, and removes the guide rail 2 from the ladder 1. If the guide rail 2 is composed of multiple segments, the locking bolts 211 can be loosened to disassemble it into segment rods 21 for easy transportation and storage for future use.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fall protection system for high-altitude operations, characterized in that, Includes ladder (1), guide rail (2), differential (3) and shoulder strap (4); Guide rail (2): It is arranged along the length of the ladder (1) and is detachably connected to the ladder (1); Differential (3): Slidingly mounted on the guide rail (2); Shoulder strap (4): connected to the differential (3).

2. The high-altitude operation fall protection system according to claim 1, characterized in that, The guide rail (2) is provided with a support block (201) in the middle of one side of the ladder (1), and the support block (201) is arranged along the length direction of the guide rail (2).

3. A fall protection system for high-altitude operations according to claim 2, characterized in that, It also includes several buckle assemblies (5), each buckle assembly (5) including a connecting plate (51), the middle of the connecting plate (51) having a limiting groove adapted to the shape of the foot pedal of the ladder (1), and fastening bolts (52) connecting the top surface of the support block (201) being provided on both sides of the connecting plate (51).

4. A fall protection system for high-altitude operations according to claim 3, characterized in that, The inner wall of the limiting groove is provided with an anti-slip rubber pad (53).

5. A fall protection system for high-altitude operations according to claim 2, characterized in that, It also includes two limiting components (6), which are respectively disposed at both ends of the guide rail (2) to limit the differential (3) from leaving the guide rail (2).

6. A fall protection system for high-altitude operations according to claim 5, characterized in that, The limiting component (6) includes a locking block (61) and a limiting bolt (62). The locking block (61) is provided with a slot that is adapted to the shape of the guide rail (2). The locking block (61) is locked onto the support block (201) through the slot. The limiting bolt (62) connects the locking block (61) and the support block (201).

7. A fall protection system for high-altitude operations according to claim 1, characterized in that, It also includes a buffer bag (7), which is a structural component made of elastic material. One end of the buffer bag (7) is connected to the differential (3) through a first hook (71), and the other end is connected to the shoulder strap (4) through a second hook (72).

8. A fall protection system for high-altitude operations according to claim 1, characterized in that, The guide rail (2) includes several segment rods (21), which are spliced ​​together to form a long strip, and adjacent segment rods (21) are detachably connected.

9. A fall protection system for high-altitude operations according to claim 8, characterized in that, Two adjacent segment rods (21) are nested together and a locking bolt (211) is provided at the connection point. The locking bolt (211) connects the two adjacent segment rods (21).

10. A fall protection system for high-altitude operations according to any one of claims 1-9, characterized in that, The surface of the guide rail (2) is coated with an anti-corrosion coating.

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