A life safety protection device for warning of high-altitude operations

Abstract

This invention relates to the field of fall protection technology, specifically a life safety protection device for high-altitude work warnings, comprising: a ladder; a fall protection assembly including an extension mechanism at the top of the ladder, a tensioning mechanism at the bottom of the ladder, a steel cable fixed between the extension mechanism and the tensioning mechanism, the tensioning mechanism for adjusting the tension of the steel cable, and at least one positioning mechanism for securing the steel cable on the ladder; and a buffer assembly installed on the extension mechanism to absorb the impact force generated by the steel cable. The beneficial effects of this invention are that the upper support and upper connecting bracket not only provide additional height support but also provide stable standing support when workers reach the work platform. The upper connecting bracket is connected to the steel cable, and a fixing collar ensures a stable connection with the ladder, providing temporary safety anchor points for workers when changing positions.

Description

Technical Field

[0001] This invention relates to the field of fall protection technology, and in particular to a life safety protection device for warning during high-altitude operations. Background Technology

[0002] Fall arrestors are important devices used to protect the safety of workers at heights. The main protection methods of fall arrestors include limit control, automatic braking, buffer absorption, dual protection, and weather resistance. These devices play a vital role in high-altitude operations and can effectively ensure the personal safety of workers at heights.

[0003] When the ladder and the work platform are at the same height, there is a risk of falling when workers leave the ladder and enter the work platform, as they may need to untie their safety ropes or safety belts to move to the platform. Summary of the Invention

[0004] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0005] The purpose of this invention is to provide a life safety protection device for warning of high-altitude operations.

[0006] Therefore, its purpose is to solve the safety problem that may arise when workers need to untie safety ropes or safety belts to move to the platform while leaving the ladder and entering the work platform.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a life safety protection device for high-altitude operation warning, comprising a ladder; a fall protection component comprising an extension mechanism disposed at the top of the ladder, a tensioning mechanism disposed at the bottom of the ladder, a steel cable fixed between the extension mechanism and the tensioning mechanism, the tensioning mechanism being used to adjust the tension of the steel cable, and at least one positioning mechanism for securing the steel cable being installed on the ladder; and a buffer component installed on the extension mechanism for absorbing the impact force generated by the steel cable.

[0008] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, the extension mechanism includes an upper support arranged parallel to the ladder, the top of the upper support being higher than the top of the ladder, an upper connecting support being fixed to the side of the upper support away from the ladder by bolts, a steel cable being connected below the upper connecting support, and the upper support being fixed to the ladder by a fixing collar.

[0009] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, the tensioning mechanism includes a lower support arranged parallel to the ladder, a lower connecting support fixed on the side of the lower support away from the ladder, an adjustment mechanism connected above the lower connecting support, the lower support fixed to the ladder by a fixing collar, and a grounding mechanism fixed on the lower support.

[0010] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, the positioning mechanism includes a connecting seat fixed to the ladder by a fixing collar, a positioning plate fixed on the side of the connecting seat away from the ladder, and a positioning groove for limiting the swaying of the steel cable.

[0011] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, the buffer assembly includes a buffer shell fixed below the upper connecting support and a multi-stage buffer mechanism. The buffer shell is provided with a buffer rod mechanism. The lower end of the buffer rod mechanism is connected to the steel cable to absorb the impact force generated by the steel cable. The multi-stage buffer mechanism is used to change the capacity of the subsequent cavity according to the impact force generated by the buffer rod mechanism, thereby generating a damping effect.

[0012] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, wherein: a buffer cavity is provided inside the buffer shell, and the buffer cavity is filled with a damping medium, which is used to dampen the movement of the buffer rod mechanism.

[0013] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, the buffer rod mechanism includes a buffer piston slidably disposed inside the buffer cavity, a buffer rod fixed at the bottom of the buffer piston, the bottom of the buffer rod movably penetrating through the buffer shell and fixedly connected to the steel cable, and a damping medium distributed below the buffer piston.

[0014] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, the multi-stage buffer mechanism includes a control rod fixedly installed on the top of the buffer piston, a rotating sleeve rotatably disposed on the outer side of the control rod and the inner wall of the buffer cavity, an inclined groove being opened on the inner wall of the rotating sleeve, and a sliding rod extending into the inclined groove being provided on the outer side of the control rod.

[0015] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, wherein: a driving gear is fixed on the outside of the control rod, a plurality of driven gears mesh on the outside of the driving gear, a magnetic rod is coaxially fixed at the bottom of the driven gear, a flexible tube is provided between the magnetic rod and the buffer cavity, the flexible tube communicates with the buffer cavity, and a rubber sealing layer is fixed at the communication between the flexible tube and the buffer cavity.

[0016] As a preferred embodiment of the life safety protection device for high-altitude operation warning of the present invention, wherein: a plurality of vertically arranged magnetic compression blocks are provided between the flexible tube and the magnetic rod, the magnetic compression blocks are driven to move by the magnetic rod, a compression spring is abutted on the outside of the magnetic compression blocks, a backflow preventer groove is provided on the outside of the magnetic compression blocks, and a backflow preventer block is provided inside the buffer housing that abuts against the backflow preventer groove.

[0017] The beneficial effects of the life safety protection device for high-altitude operation warning of the present invention are as follows: the upper support and the upper connecting support not only provide additional height support, but also provide stable standing support when the worker reaches the work platform. The upper connecting support is connected to the steel cable and a fixing collar is used to ensure a stable connection with the ladder, providing a temporary safety anchor point for the worker when changing positions.

[0018] The multi-stage buffer mechanism can automatically adjust the damping characteristics according to the magnitude of the impact force, achieving multi-stage energy absorption and ensuring that the most suitable buffering effect can be provided under different conditions, avoiding the problems of insufficient or excessive absorption that may be caused by single-strength buffering. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is a schematic diagram of the overall structure of the life safety protection device for high-altitude operation warning in this invention.

[0021] Figure 2 This is a schematic diagram of the extension mechanism of the life safety protection device for high-altitude operation warning in this invention.

[0022] Figure 3 This is a schematic diagram of the tensioning mechanism of the life safety protection device for high-altitude operation warning in this invention.

[0023] Figure 4 The life safety protection device for high-altitude operation warning in this invention Figure 1 Enlarged structural diagram of section A in the middle.

[0024] Figure 5 This is a cross-sectional view of the buffer component of the life safety protection device for high-altitude operation warning in this invention.

[0025] Figure 6This is a cross-sectional schematic diagram of the multi-stage buffer mechanism of the life safety protection device for high-altitude operation warning in this invention.

[0026] Figure 7 This is a schematic diagram of the sliding structure of the magnetic compression block in the life safety protection device for high-altitude operation warning in this invention.

[0027] In the picture:

[0028] 100. Climbing ladders;

[0029] 201. Extension mechanism; 202. Tensioning mechanism; 203. Steel cable; 204. Positioning mechanism; 205. Fixing collar; 206. Grounding mechanism;

[0030] 201a. Upper support; 201b. Upper connecting support;

[0031] 202a. Lower support; 202b. Lower connecting support; 202c. Adjustment mechanism;

[0032] 204a, Connecting seat; 204b, Positioning plate; 204c, Positioning groove;

[0033] 300. Buffer assembly; 301. Buffer housing; 302. Buffer rod mechanism; 303. Multi-stage buffer mechanism; 304. Rubber sealing layer;

[0034] 301a, Buffer chamber;

[0035] 302a, buffer piston; 302b, buffer rod;

[0036] 303a, Control lever; 303b, Rotating sleeve; 303c, Inclined groove; 303d, Driving gear; 303e, Driven gear; 303f, Magnetic rod; 303g, Magnetic pressing block; 303h, Compression spring; 303k, Anti-reverse groove; 303l, Flexible tube. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] Secondly, the term "one embodiment" or "embodiment" as used 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 different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0040] Example 1

[0041] Reference Figure 1-2 This is the first embodiment of the present invention, which provides a life safety protection device for high-altitude work warning, including a ladder 100; a fall arrestor assembly including an extension mechanism 201 disposed at the top of the ladder 100, a tensioning mechanism 202 disposed at the bottom of the ladder 100, a steel cable 203 fixed between the extension mechanism 201 and the tensioning mechanism 202, the tensioning mechanism 202 being used to adjust the tension of the steel cable 203, and at least one positioning mechanism 204 being installed on the ladder 100 to secure the steel cable 203. A buffer assembly 300 is installed on the extension mechanism 201 to absorb the impact force generated by the steel cable 203.

[0042] The extension mechanism 201 supports and guides the steel cable 203 to extend upwards; the tensioning mechanism 202 is responsible for adjusting the tension of the steel cable 203. Excessive tension may damage the components, while excessive looseness may reduce safety; the steel cable 203 connects the extension mechanism 201 and the tensioning mechanism 202, and is the core load-bearing component of the entire fall protection system, bearing the weight of the workers and assuming tensile loads in the event of an accidental fall; the positioning mechanism 204 is used to fix the position of the steel cable 203, preventing the steel cable 203 from swaying on the ladder and ensuring the safety of workers during the climbing process; the buffer assembly 300 is used to absorb the impact force of the fall. When a worker accidentally falls, the buffer assembly 300 uses hydraulic pressure to reduce the impact force acting on the worker, thereby minimizing injury.

[0043] Example 2

[0044] Reference Figure 2-4 This is the second embodiment of the invention. Unlike the previous embodiment, it further includes an upper support 201a arranged parallel to the ladder 100. The top of the upper support 201a is higher than the top of the ladder 100. An upper connecting support 201b is bolted to the side of the upper support 201a away from the ladder 100. A steel cable 203 is connected below the upper connecting support 201b. The upper support 201a is fixed to the ladder 100 by a fixing collar 205. The tensioning mechanism 202 includes a lower support 202a arranged parallel to the ladder 100. A lower connecting support 202b is fixed to the side of the lower support 202a away from the ladder 100. An adjusting mechanism 202c is connected above the lower connecting support 202b. The lower support 202a is fixed to the ladder 100 by the fixing collar 205. A grounding mechanism 206 is fixed to the lower support 202a.

[0045] The upper support 201a and upper connecting support 201b not only provide additional height support but also offer stable standing support when workers reach the work platform. The upper connecting support 201b is connected to the steel cable 203, and a fixing collar 205 ensures a secure connection with the ladder 100, providing temporary safety anchors for workers when changing positions. Workers connect the steel cable 203 to it via buckles and a sliding shuttle for fall protection. The sliding shuttle has an automatic locking function, reacting quickly upon detecting a fall to effectively prevent descent and greatly improve personal protection levels. The combination of the lower support 202a and the adjusting mechanism 202c allows for precise adjustment of the tension of the steel cable 203, ensuring it is neither too loose nor too tight, maintaining optimal safety. The adjusting mechanism 202c is preferably an adjusting bolt, which facilitates manual or tool operation, simplifying maintenance. Simultaneously, the winding design of the lower connecting support 202b helps manage excess steel cable, avoiding clutter on-site and reducing safety hazards.

[0046] The grounding mechanism 206, by connecting the lower support 202a to the earth, effectively disperses the instantaneous energy caused by lightning strikes, reducing the impact of these events on the fall arrestor structure and thus enhancing the stability and durability of the entire fall arrestor assembly. The grounding mechanism 206 uses a graphite-based flexible grounding electrode, with the buried portion using copper-plated steel grounding material.

[0047] Reflective markings, such as reflective strips or reflective signs, are affixed to the surfaces of the extension mechanism 201 and the tensioning mechanism 202. These reflective markings can effectively reflect ambient light, especially at night or in poor lighting conditions, making the extension mechanism 201 and the tensioning mechanism 202 more conspicuous and preventing collision accidents.

[0048] The positioning mechanism 204 includes a connecting seat 204a fixed to the ladder 100 by a fixing collar 205. A positioning plate 204b is fixed on the side of the connecting seat 204a away from the ladder 100. The positioning plate 204b is provided with a positioning groove 204c for limiting the swaying of the steel cable 203.

[0049] In this embodiment, during use, workers connect to the steel cable 203 via existing buckles and a sliding shuttle, providing fall protection. When workers climb from the ladder 100 to the work platform, the upward-extending upper support 201a allows them to stand firmly on the work platform before separating from the steel cable 203, further reducing the risk of fall. Furthermore, the upper support 201a has a temporary anchor point fixed to the side facing the ladder 100. When workers transfer from the work platform to the ladder 100, they can connect to the temporary anchor point via buckles and adjust their climbing posture, improving climbing safety. The sliding shuttle is directly connected to the worker's safety belt; in the event of a fall, it immediately locks, preventing further descent and protecting personnel safety.

[0050] Workers use tools to adjust the tension of the steel cable 203 by adjusting the adjustment mechanism 202c. The lower connecting support 202b can wrap and protect the remaining steel cable 203. The adjustment mechanism 202c is preferably an adjusting bolt for manual or tool-assisted rotation to adjust the tension of the steel cable 203.

[0051] Positioning plates 204b can be set in one or more according to the length of steel cable 203, thereby providing a stable clamping force on steel cable 203, preventing steel cable 203 from swinging excessively due to wind or other factors, and increasing safety during operation.

[0052] Example 3

[0053] Reference Figure 5-7 This is the third embodiment of the present invention, which further provides a life safety protection device for high-altitude operation warning. It includes a buffer housing 301 fixed below the upper connecting support 201b and a multi-stage buffer mechanism 303. The buffer housing 301 contains a buffer rod mechanism 302, the lower end of which is connected to a steel cable 203 to absorb the impact force generated by the steel cable 203. The multi-stage buffer mechanism 303 is used to change the capacity of subsequent cavities according to the impact force generated by the buffer rod mechanism 302, generating a damping effect. A buffer cavity 301a is formed inside the buffer housing 301, filled with a damping medium that dampens the movement of the buffer rod mechanism 302. The buffer rod mechanism 302 includes a buffer piston 302a slidably disposed inside the buffer cavity 301a. A buffer rod 302b is fixed to the bottom of the buffer piston 302a, and the bottom of the buffer rod 302b movably penetrates the buffer housing 301 and is fixedly connected to the steel cable 203. The damping medium is distributed below the buffer piston 302a. The buffer housing 301, serving as the outer shell of the entire buffer system, is fixed below the upper connecting support 201b. Its main function is to house the buffer rod mechanism 302 and the damping medium, and to provide space for the installation and movement of these components.

[0054] The buffer chamber 301a is filled with a damping medium (which may be oil or other highly viscous liquid). When the buffer piston 302a moves due to the force of the buffer rod 302b, the damping medium will generate resistance due to compression, thereby consuming part of the impact energy and achieving a buffering effect. The buffer piston 302a and the buffer rod 302b are slidably disposed inside the buffer chamber 301a, and the buffer rod 302b fixed at its bottom passes through the buffer housing 301 and is connected to the steel cable 203. This design allows the damping medium to be compressed when the steel cable 203 is pulled down by force, thereby achieving energy absorption and conversion.

[0055] The multi-stage buffer mechanism 303 includes a control rod 303a fixedly mounted on the top of the buffer piston 302a. A rotating sleeve 303b, rotatably mounted to the inner wall of the buffer cavity 301a, is located on the outer side of the control rod 303a. An inclined groove 303c is formed on the inner wall of the rotating sleeve 303b. A sliding rod extending into the inclined groove 303c is located on the outer side of the control rod 303a. A drive gear 303d is fixedly mounted on the outer side of the drive gear 303d. Multiple driven gears 303e mesh with the outer side of the drive gear 303d. A magnetic rod 303f is coaxially fixed to the bottom of each driven gear 303e. A flexible tube 303l is provided between the magnetic rod 303f and the buffer cavity 301a, communicating with the buffer cavity 301a. A rubber sealing layer 304 is fixed at the communication point between the flexible tube 303l and the buffer cavity 301a. Multiple vertically arranged magnetic compression blocks 303g are provided between the flexible tube 303l and the magnetic rod 303f. The magnetic compression blocks 303g are driven to move by the magnetic rod 303f. A compression spring 303h is abutted on the outside of the magnetic compression blocks 303g. A backflow preventer groove 303k is opened on the outside of the magnetic compression blocks 303g. A backflow preventer block is provided in the buffer housing 301 that abuts against the backflow preventer groove 303k.

[0056] In this embodiment, when a worker falls, the shuttle can lock the worker to the steel cable 203 to prevent the worker from continuing to slide down. The buffer component 300 can effectively absorb the impact force generated by the steel cable 203 when a fall occurs, reducing injury to the worker and damage to other parts of the system.

[0057] For example, refer to Figure 5-6 The impact force generated by the steel cable 203 will pull the buffer rod 302b down. When the buffer rod 302b slides, it will squeeze the damping medium below through the buffer piston 302a. Therefore, the pressure of the damping medium on the rubber sealing layer 304 is greater than the preset range. The rubber sealing layer 304 opens, allowing the damping medium to flow into the flexible tube 303l, generating a damping effect and gradually consuming energy.

[0058] Simultaneously, when the buffer piston 302a slides down, it applies a thrust to the inclined groove 303c through the extended slide rod, causing the rotating sleeve 303b to rotate to a preset angle. When the rotating sleeve 303b rotates, it drives the fixed driving gear 303d to rotate. The driving gear 303d drives the meshing driven gear 303e to rotate. The driven gear 303e drives the magnetic rod 303f to rotate to a preset angle, thereby generating a magnetic repulsive force on multiple magnetic extrusion blocks 303g. This pushes the multiple magnetic extrusion blocks 303g to extrude the flexible tube 303l, thereby causing a predetermined change in the capacity of the cavity of the flexible tube 303l, and thus changing the flow rate of the fluid flow path. In other words, the flexible tube 303l can automatically adjust its damping characteristics for the fluid according to the magnitude of the impact intensity, realizing multi-stage energy absorption. By automatically adjusting the fluid damping characteristics, it can effectively absorb and dissipate energy according to the magnitude of the impact force, avoiding the problem of insufficient or excessive absorption caused by single-intensity buffering. Thus, it can achieve the best energy absorption effect under impacts of different intensities, effectively controlling the deceleration process of the falling person and reducing the risk of injury.

[0059] In addition, the sliding stroke of each magnetic extrusion block 303g is different, which means that the cavity formed by the flexible tube 303l corresponding to the extrusion of each magnetic extrusion block 303g is regarded as a separate cavity. For example, when a falling impact occurs, the fluid pressure in the first cavity increases, forcing the damping medium to enter the narrow second cavity. This process is accompanied by a significant damping effect. As the impact force is transmitted, the subsequent cavities become narrower in turn, forming a continuous and progressively stronger energy absorption chain.

[0060] Secondly, by constraining the magnetic extrusion block 303g through the anti-reverse groove 303k, multiple protrusions in the anti-reverse groove 303k will abut against the anti-reverse block after the magnetic extrusion block 303g slides, thereby avoiding the instability of the extrusion force generated by the magnetic extrusion block 303g on the flexible tube 303l, and setting the anti-reverse block at an angle can reduce frictional damping.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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 life safety protection device for warning of high-altitude operations, characterized in that: include, Ladder (100); The fall arrestor includes an extension mechanism (201) disposed at the top of the ladder (100) and a tensioning mechanism (202) disposed at the bottom of the ladder (100). A steel cable (203) is fixed between the extension mechanism (201) and the tensioning mechanism (202). The tensioning mechanism (202) is used to adjust the tension of the steel cable (203). At least one positioning mechanism (204) is installed on the ladder (100) to stabilize the steel cable (203). The buffer assembly (300) is mounted on the extension mechanism (201) to absorb the impact force generated by the steel cable (203); The buffer assembly (300) includes a buffer housing (301) and a multi-stage buffer mechanism (303). The buffer housing (301) is provided with a buffer rod mechanism (302) inside. The lower end of the buffer rod mechanism (302) is connected to the steel cable (203) to absorb the impact force generated by the steel cable (203). The multi-stage buffer mechanism (303) is used to change the capacity of the subsequent cavity according to the impact force generated by the buffer rod mechanism (302) to generate a damping effect. The buffer housing (301) has a buffer cavity (301a) inside, and the buffer cavity (301a) is filled with a damping medium, which is used to dampen the movement of the buffer rod mechanism (302). The buffer rod mechanism (302) includes a buffer piston (302a) slidably disposed inside the buffer cavity (301a), a buffer rod (302b) fixed at the bottom of the buffer piston (302a), the bottom of the buffer rod (302b) movably penetrating the buffer housing (301) and fixedly connected to the steel cable (203), and the damping medium is distributed below the buffer piston (302a); The multi-stage buffer mechanism (303) includes a control rod (303a) fixedly mounted on the top of the buffer piston (302a). A rotating sleeve (303b) is provided on the outside of the control rod (303a) and is rotatably mounted to the inner wall of the buffer cavity (301a). An inclined groove (303c) is provided on the inner wall of the rotating sleeve (303b). A sliding rod extending into the inclined groove (303c) is provided on the outside of the control rod (303a). A drive gear (303d) is fixed to the outside of the control lever (303a). Multiple driven gears (303e) mesh with the outside of the drive gear (303d). A magnetic rod (303f) is coaxially fixed to the bottom of the driven gear (303e). A flexible tube (303l) is provided between the magnetic rod (303f) and the buffer cavity (301a). The flexible tube (303l) communicates with the buffer cavity (301a). A rubber sealing layer (304) is fixed at the communication between the flexible tube (303l) and the buffer cavity (301a).

2. The life safety protection device for high-altitude work warning as described in claim 1, characterized in that: The extension mechanism (201) includes an upper support (201a) arranged parallel to the ladder (100), the top of the upper support (201a) being higher than the top of the ladder (100), and an upper connecting support (201b) being bolted to the side of the upper support (201a) away from the ladder (100), with a steel cable (203) connected below the upper connecting support (201b), and the upper support (201a) being fixed to the ladder (100) by a fixing collar (205).

3. The life safety protection device for high-altitude work warning as described in claim 2, characterized in that: The tensioning mechanism (202) includes a lower support (202a) arranged parallel to the ladder (100). A lower connecting support (202b) is fixed on the side of the lower support (202a) away from the ladder (100). An adjustment mechanism (202c) is connected above the lower connecting support (202b). The lower support (202a) is fixed to the ladder (100) by a fixing collar (205). A grounding mechanism (206) is fixed on the lower support (202a).

4. The life safety protection device for high-altitude work warning as described in claim 3, characterized in that: The positioning mechanism (204) includes a connecting seat (204a) fixed to the ladder (100) by a fixing collar (205). A positioning plate (204b) is fixed on the side of the connecting seat (204a) away from the ladder (100). A positioning groove (204c) is provided on the positioning plate (204b) for limiting the swaying of the steel cable (203).

5. The life safety protection device for high-altitude operation warning as described in claim 1, characterized in that: Multiple vertically arranged magnetic compression blocks (303g) are provided between the flexible tube (303l) and the magnetic rod (303f). The magnetic compression blocks (303g) are driven to move by the magnetic rod (303f). A compression spring (303h) abuts against the outside of the magnetic compression block (303g). A check groove (303k) is opened on the outside of the magnetic compression block (303g). A check block that abuts against the check groove (303k) is provided inside the buffer housing (301).

Images