Portable aerial work maintenance auxiliary falling stopping device

By introducing lifting components and positioning components in the high-altitude operation auxiliary fall-resistance device, automatic transportation of high-altitude maintenance tools and stable positioning of materials is achieved, the problem of automatic transportation and positioning in the prior art is solved, and transportation stability is improved Sex and practicality.

CN119118012APending Publication Date: 2024-12-13STATE GRID SHANXI ELECTRIC POWER COMPANY TAIYUAN POWER SUPPLY COMPANY +2
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Patent Information

Application Number
CN202410992301.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

The existing high-altitude operation auxiliary fall-stop device cannot automatically transport the brackets equipped with materials, and cannot be effectively positioned during material transportation, which affects the stability and practical range, especially during high-altitude maintenance.

Method used

A portable aerial work maintenance auxiliary fall-off device is designed, including a lifting assembly, a positioning assembly and a lifting unit. The lifting and transport of the pallet is achieved through a dual-axis motor drive lead screw and slide, and the moving plate and positioning teeth are realized. Stable clamping positioning of the material.

Benefits of technology

It realizes automatic overall transportation of high-altitude maintenance tools and stable transportation of materials, improves stability and practicality during transportation, expands the application scope of the device, and solves the problem of height adjustment limitation.

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Abstract

The invention relates to the technical field of anti-falling devices, in particular to a portable aerial work maintenance auxiliary anti-falling device which comprises a movable maintenance auxiliary anti-falling device body and a supporting plate arranged on the upper surface of the movable maintenance auxiliary anti-falling device body. The jacking assembly is used for jacking the maintenance tool upwards after the mobile maintenance auxiliary falling stopping device body enters the bottom of the maintenance tool, and the jacking assembly comprises a rectangular groove formed in the upper surface of the mobile maintenance auxiliary falling stopping device body and a strip-shaped groove formed in the inner bottom wall of the rectangular groove; a first double-shaft motor is fixedly arranged on the inner wall of the strip-shaped groove, lead screws are fixedly arranged at the two output ends of the first double-shaft motor, and two symmetrical sliding blocks are arranged on the inner wall of the strip-shaped groove in a sliding mode. The problem that in the prior art, a bracket loaded with materials cannot be automatically transported and lifted is effectively solved.
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Description

Technical Field

[0001] The invention relates to the technical field of fall arresting devices, in particular to a portable auxiliary fall arresting device for maintenance of aerial work. Background Art

[0002] With the rapid development of my country's economy and the acceleration of urbanization, landmark buildings, especially public buildings, have been built in cities all over the country. Designers have adopted a large number of new technologies, new materials, and new processes, and have built large-scale public buildings with unique shapes and complex structures. Some engineering designs have broken through the current engineering construction standards, increasing the difficulty of construction, and conventional construction methods are difficult to solve, increasing the technical risks of construction engineering. The scale of large-scale special-shaped public construction projects is relatively large, and the internal floor height of large-scale special-shaped public construction projects is relatively high, and there are even connected hollow buildings in the middle, that is, the roof can be seen at a glance from the ground.

[0003] In the prior art, an anti-fall protection device for high-altitude performances with a publication number of CN214213843U adopts "a hook, a ring installed in the hook, and a rope installed on the ring, and a rope seat is fixedly provided on one side of the rope, and a protection mechanism installed between the ring and the rope; the protection mechanism includes an adjustment component, a fixing component and a limiting component, and the adjustment component is slidably connected in a groove on the surface of the ring; the adjustment component can be moved and extended under force, and reset after the pressure is reduced, so that it can be adapted and adjusted according to the performer's movement amplitude and position, the fixing component can quickly fix and separate the rope, ensure safety and simplify the disassembly steps, and the limiting component can strengthen the limit of the rope to avoid the rope seat from loosening and reduce safety hazards.

[0004] However, the above scheme still has some shortcomings. For example, when the auxiliary anti-fall device is used to transport high-altitude auxiliary materials, personnel are required to place the materials on top of the auxiliary anti-fall device before transportation. It cannot automatically transport the bracket containing materials, resulting in a narrow practical range of the auxiliary anti-fall device. Moreover, when transporting materials, the materials cannot be effectively positioned, which affects the stability during transportation. The height adjustment is also limited during auxiliary maintenance.

[0005] In view of this, the present invention proposes a portable aerial work maintenance auxiliary fall arresting device. Summary of the invention

[0006] The purpose of the present invention is to provide a portable aerial work maintenance auxiliary fall arresting device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A portable high-altitude maintenance auxiliary anti-fall device, comprising:

[0009] A mobile maintenance auxiliary stopper body, and a support plate arranged on the upper surface of the mobile maintenance auxiliary stopper body;

[0010] A lifting assembly, which is used to lift the maintenance tool upward after the mobile maintenance auxiliary stop device body enters the bottom of the maintenance tool, the lifting assembly includes a rectangular groove opened on the upper surface of the mobile maintenance auxiliary stop device body, and a strip groove opened on the bottom wall of the rectangular groove, the inner wall of the strip groove is fixed with a first double-axis motor, and the two output ends of the first double-axis motor are fixed with lead screws, the inner wall of the strip groove is slidably provided with two symmetrical sliders, and the side surfaces of the two sliders are provided with threaded holes respectively connected to the outer surfaces of the two lead screws, the top end of the slider is rotatably provided with a push rod, and the end of the push rod away from the slider is rotatably connected to the lower surface of the support plate;

[0011] A positioning assembly, which is used to position the material or maintenance tool placed on the pallet;

[0012] A lifting unit and a fall prevention shell arranged on the lower surface of the mobile maintenance auxiliary fall prevention device body, a lifting mechanism is installed at the bottom end of the fall prevention shell, and a horizontal adjustment support mechanism is arranged at the bottom end of the lifting mechanism.

[0013] As a preferred technical solution, two symmetrical mounting blocks are fixedly provided on the lower surface of the support plate, and the surfaces of the slider and the mounting block are provided with rotation grooves, the inner walls of the rotation grooves are rotatably provided with rotation shafts, and both ends of the push rod are rotatably connected to the inner walls of the rotation grooves on the slider and the mounting block through the rotation shafts.

[0014] As a preferred technical solution, two symmetrical limiting columns are fixedly provided on the lower surface of the support plate, and the upper surface of the movable maintenance auxiliary falling prevention device body is provided with a columnar limiting groove slidably connected to the outer surfaces of the two limiting columns.

[0015] As a preferred technical solution, the positioning assembly includes a rectangular cavity opened inside the support plate and penetrating the two side surfaces of the support plate, and two symmetrical moving plates slidably arranged on the inner wall of the rectangular cavity.

[0016] As a preferred technical solution, a second dual-axis motor is fixedly installed on the inner wall of the rectangular cavity, and threaded columns are fixedly installed at both output ends of the second dual-axis motor, and cylindrical thread grooves threadedly connected to the outer surface of the threaded column are opened at the ends of the two movable plates.

[0017] As a preferred technical solution, a plurality of positioning teeth are fixedly provided at equal intervals on the upper surface of the end of the movable plate, and tooth openings corresponding to the positioning teeth are opened on the upper surface of the supporting plate.

[0018] As a preferred technical solution, two symmetrical fixed plates are fixedly provided on the inner wall of the rectangular cavity, and fixed columns are fixedly provided on the two side surfaces of the fixed plates, limit blocks are fixedly provided on the ends of the fixed columns, a sliding cavity for the fixed columns to slide is provided on the side of the movable plate, and a limit groove for the limit block to slide is provided on the inner wall of the sliding cavity.

[0019] As a preferred technical solution, the lifting mechanism includes a fixed top frame fixedly connected to the bottom of the shell prevention device, the bottom end of the fixed top frame is movably connected to a folding lifting frame, the inside of the folding lifting frame is movably connected to an electric hydraulic cylinder, and the bottom end of the folding lifting frame is movably connected to a fixed bottom frame.

[0020] As a preferred technical solution, the horizontal adjustment support mechanism includes a device frame fixedly connected to the bottom end of the fixed base frame, the four sides of the bottom end of the device frame are fixedly connected to an electric telescopic rod, the bottom end of the electric telescopic rod is fixedly connected to a moving seat, the four corners of the bottom end of the moving seat are fixedly connected to moving rollers, and one of the sides of the moving rollers is fixedly connected to a wheel brake.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention uses a lifting component of the maintenance auxiliary anti-fall device to enable the maintenance auxiliary anti-fall device to start the first double-axis motor when transporting the high-altitude maintenance tools as a whole, so that the two push rods lift the support plate upward, thereby enabling the support plate to lift the maintenance tools upward for transportation and delivery, thereby effectively solving the problem in the prior art that the bracket loaded with materials cannot be automatically transported.

[0023] 2. The present invention sets a positioning component. After the material is placed on the pallet or the pallet lifts the maintenance tool, the second dual-axis motor can be started to drive the two movable plates to move toward the middle at the same time, so that the positioning teeth on the two movable plates can effectively clamp and fix the two side surfaces of the material or the maintenance tool, thereby effectively improving the stability of the material or the maintenance tool during transportation and delivery, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 This is one of the structural schematic diagrams of the present invention;

[0027] Figure 3 It is a schematic diagram of the lifting mechanism structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the horizontal adjustment support mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the positioning component of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the jacking assembly of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the limiting column of the present invention;

[0032] Figure 8 It is a schematic diagram of the fixed column structure of the present invention.

[0033] In the figure:

[0034] 100. Mobile maintenance of the auxiliary fall arresting device body;

[0035] 200, pallet;

[0036] 300, lifting assembly; 301, first dual-axis motor; 302, lead screw; 303, slider; 304, ejector rod; 305, limit column;

[0037] 400, positioning assembly; 401, moving plate; 402, second dual-axis motor; 403, threaded column; 404, cylindrical threaded groove; 405, positioning tooth; 406, tooth opening; 407, fixed column; 408, limit block; 409, limit groove;

[0038] 500, lifting unit; 501, shell drop prevention; 502, lifting mechanism; 5021, fixed top frame; 5022, folding lifting frame; 5023, electric hydraulic cylinder; 5024, fixed bottom frame; 503, horizontal adjustment support mechanism; 5031, device frame; 5032, electric telescopic rod; 5033, moving seat; 5034, moving roller. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Embodiment 1

[0044] According to the attached Figure 1-4 As shown, an embodiment of the present invention provides a portable aerial work maintenance auxiliary fall arrest device, comprising:

[0045] A mobile maintenance auxiliary stopper body 100, and a support plate 200 disposed on the upper surface of the mobile maintenance auxiliary stopper body 100;

[0046] A lifting assembly 300 is used to lift the maintenance tool upward after the mobile maintenance auxiliary stop device body 100 enters the bottom of the maintenance tool. The lifting assembly 300 includes a rectangular groove provided on the upper surface of the mobile maintenance auxiliary stop device body 100, and a strip groove provided on the bottom wall of the rectangular groove. A first dual-axis motor 301 is fixedly provided on the inner wall of the strip groove, and a lead screw 302 is fixedly provided at both output ends of the first dual-axis motor 301. Two symmetrical sliders 303 are slidably provided on the inner wall of the strip groove, and threaded holes are provided on the sides of the two sliders 303, which are respectively threadedly connected to the outer surfaces of the two lead screws 302. A push rod 304 is rotatably provided on the top of the slider 303, and one end of the push rod 304 away from the slider 303 is rotatably connected to the lower surface of the support plate 200.

[0047] The lifting unit 500 and the anti-falling shell 501 are arranged on the lower surface of the mobile maintenance auxiliary anti-falling device body 100. The bottom end of the anti-falling shell 501 is installed with a lifting mechanism 502, and the bottom end of the lifting mechanism 502 is provided with a horizontal adjustment support mechanism 503.

[0048] Two symmetrical mounting blocks are fixedly provided on the lower surface of the support plate 200, and a rotating groove is opened on the surface of the slider 303 and the mounting block, and a rotating shaft is rotatably provided on the inner wall of the rotating groove. Both ends of the push rod 304 are rotatably connected to the slider 303 and the inner wall of the rotating groove on the mounting block through the rotating shaft.

[0049] Two symmetrical limiting columns 305 are fixedly provided on the lower surface of the support plate 200 , and a columnar limiting groove slidably connected to the outer surfaces of the two limiting columns 305 is opened on the upper surface of the movable maintenance auxiliary falling arresting device body 100 .

[0050] In this embodiment, by providing a lifting assembly 300, the maintenance auxiliary fall-stopping device can enable the mobile maintenance auxiliary fall-stopping device body 100 to enter directly under the maintenance tool when the maintenance tool is transported as a whole, and then start the first dual-axis motor 301. The rotation of the first dual-axis motor 301 drives the two lead screws 302 to rotate simultaneously. The simultaneous rotation of the two lead screws 302 drives the two sliders 303 to move to both sides at the same time, so that the two push rods 304 lift the support plate 200 upward, so that the support plate 200 lifts the maintenance tool upward for transportation and delivery, thereby effectively solving the defect of the prior art that the bracket loaded with materials cannot be automatically transported, preventing high-altitude personnel from maintaining and avoiding the slipping of tools, and further performing protective use.

[0051] Embodiment 2

[0052] On the basis of the first embodiment, and different from the first embodiment,

[0053] A portable high-altitude maintenance auxiliary anti-fall device, further comprising:

[0054] The positioning assembly 400 is used to position the material or maintenance tool placed on the pallet 200 .

[0055] The positioning assembly 400 includes a rectangular cavity opened inside the support plate 200 and penetrating the two side surfaces of the support plate 200, and two symmetrical moving plates 401 slidably arranged on the inner wall of the rectangular cavity.

[0056] A second dual-axis motor 402 is fixedly mounted on the inner wall of the rectangular cavity, and threaded columns 403 are fixedly mounted on both output ends of the second dual-axis motor 402 . The ends of the two movable plates 401 are provided with cylindrical threaded grooves 404 threadedly connected to the outer surfaces of the threaded columns 403 .

[0057] A plurality of positioning teeth 405 are fixedly disposed at equal intervals on the upper surface of the end of the movable plate 401 , and a tooth opening 406 corresponding to the positioning teeth 405 is formed on the upper surface of the supporting plate 200 .

[0058] Two symmetrical fixed plates are fixed on the inner wall of the rectangular cavity, and fixed columns 407 are fixed on the two side surfaces of the fixed plates, and limit blocks 408 are fixed at the ends of the fixed columns 407. A sliding cavity for sliding of the fixed columns 407 is provided on the side of the movable plate 401, and a limit groove 409 for sliding of the limit block 408 is provided on the inner wall of the sliding cavity.

[0059] In this embodiment, by setting up the positioning component 400, after the material is placed on the pallet 200 or the pallet 200 lifts the maintenance tool, the second dual-axis motor 402 can be started to drive the two threaded columns 403 to rotate simultaneously. The rotation of the two threaded columns 403 drives the two movable plates 401 to move toward the middle at the same time under the action of the cylindrical thread groove 404, so that the positioning teeth 405 on the two movable plates 401 can effectively clamp and fix the two side surfaces of the material or the maintenance tool, thereby effectively improving the stability of the material or the maintenance tool during transportation and delivery. Moreover, the setting of the tooth mouth 406 makes it easy to make the spacing between the positioning teeth 405 on the two movable plates 401 closer, thereby facilitating the positioning of materials or maintenance tools of different specifications and sizes, and is highly practical.

[0060] During specific use, the shell-fall prevention device 501 is provided to prevent personnel from falling during high-altitude operations, the lifting mechanism 502 is provided to ensure the lifting and lowering of personnel at high altitudes and perform auxiliary lifting, and the horizontal adjustment support mechanism 503 is provided to facilitate use during the lifting process.

[0061] The lifting mechanism 502 includes a fixed top frame 5021 fixedly connected to the bottom of the shell prevention device 501, the bottom end of the fixed top frame 5021 is movably connected to a folding lifting frame 5022, the inside of the folding lifting frame 5022 is movably connected to an electric hydraulic cylinder 5023, and the bottom end of the folding lifting frame 5022 is movably connected to a fixed bottom frame 5024.

[0062] During specific use, the folding lifting frame 5022 at the bottom of the anti-falling shell 5021 is provided to facilitate adjustment of the horizontal height, thereby preventing personnel from slipping during high-altitude operations. The electric hydraulic cylinder 5023 is adjusted to facilitate pushing the folding lifting frame 5024 for lifting and lowering, thereby folding, lifting and lifting, which is convenient for high-altitude operations.

[0063] The horizontal adjustment support mechanism 503 includes a device frame 5031 fixedly connected to the bottom end of the fixed base frame 5024, the four sides of the bottom end of the device frame 5031 are fixedly connected to the electric telescopic rod 5032, the bottom end of the electric telescopic rod 5032 is fixedly connected to the moving seat 5033, the four corners of the bottom end of the moving seat 5033 are fixedly connected to the moving rollers 5034, and the side of one of the moving rollers 5034 is fixedly connected to the wheel brake.

[0064] During specific use, the horizontal adjustment support mechanism 503 is provided to facilitate the personnel working at high altitudes to support and fix the bottom to avoid tipping over. The electric telescopic rod 5032 is extended and retracted to facilitate the adjustment of the horizontal height of the device frame 5031. The moving roller 5034 is provided to move the auxiliary anti-fall device for high altitude maintenance.

[0065] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A portable auxiliary anti-fall device for high-altitude maintenance work, characterized by: include, A mobile maintenance auxiliary fall-stopping device body (100), and a support plate (200) arranged on the upper surface of the mobile maintenance auxiliary fall-stopping device body (100); A lifting assembly (300) is used to lift the maintenance tool upward after the mobile maintenance auxiliary stop device body (100) enters the bottom of the maintenance tool, the lifting assembly (300) comprising a rectangular groove provided on the upper surface of the mobile maintenance auxiliary stop device body (100), and a strip groove provided on the inner bottom wall of the rectangular groove, the inner wall of the strip groove being fixedly provided with a first dual-axis motor (301), and both output ends of the first dual-axis motor (301) being fixedly provided with a lead screw (302), the inner wall of the strip groove being slidably provided with two symmetrical sliders (303), and the sides of the two sliders (303) being provided with threaded holes respectively threadedly connected to the outer surfaces of the two lead screws (302), the top end of the slider (303) being rotatably provided with a push rod (304), and the end of the push rod (304) away from the slider (303) being rotatably connected to the lower surface of the support plate (200); A positioning assembly (400) for positioning materials or maintenance tools placed on the pallet (200); A lifting unit (500) and a fall prevention shell (501) arranged on the lower surface of the mobile maintenance auxiliary fall prevention device body (100), a lifting mechanism (502) is installed at the bottom end of the fall prevention shell (501), and a horizontal adjustment support mechanism (503) is arranged at the bottom end of the lifting mechanism (502).

2. A portable aerial work maintenance auxiliary anti-fall device according to claim 1, characterized in that: Two symmetrical mounting blocks are fixedly arranged on the lower surface of the support plate (200), and the surfaces of the sliding block (303) and the mounting block are provided with rotation grooves, the inner wall of the rotation groove is rotatably provided with a rotating shaft, and both ends of the push rod (304) are rotatably connected to the sliding block (303) and the inner wall of the rotation groove on the mounting block through the rotating shaft.

3. A portable aerial work maintenance auxiliary anti-fall device according to claim 1, characterized in that: Two symmetrical limiting columns (305) are fixedly arranged on the lower surface of the support plate (200), and a columnar limiting groove slidably connected to the outer surfaces of the two limiting columns (305) is opened on the upper surface of the movable maintenance auxiliary fall arresting device body (100).

4. The portable high-altitude maintenance auxiliary anti-fall device according to claim 1 is characterized by: The positioning assembly (400) comprises a rectangular cavity opened inside the support plate (200) and penetrating the surfaces of both sides of the support plate (200), and two symmetrical moving plates (401) slidably arranged on the inner wall of the rectangular cavity.

5. A portable aerial work maintenance auxiliary anti-fall device according to claim 4, characterized in that: A second dual-axis motor (402) is fixedly mounted on the inner wall of the rectangular cavity, and threaded columns (403) are fixedly mounted on two output ends of the second dual-axis motor (402), and the ends of the two movable plates (401) are provided with cylindrical threaded grooves (404) threadedly connected to the outer surfaces of the threaded columns (403).

6. A portable aerial work maintenance auxiliary anti-fall device according to claim 4, characterized in that: A plurality of positioning teeth (405) are fixedly arranged at equal intervals on the upper surface of the end of the movable plate (401), and a tooth opening (406) corresponding to the positioning teeth (405) is opened on the upper surface of the supporting plate (200).

7. The portable high-altitude maintenance auxiliary anti-fall device according to claim 5 is characterized by: Two symmetrical fixing plates are fixedly arranged on the inner wall of the rectangular cavity, and fixing columns (407) are fixedly arranged on both side surfaces of the fixing plates, and limiting blocks (408) are fixedly arranged at the ends of the fixing columns (407), and a sliding cavity for the fixing columns (407) to slide is provided on the side of the movable plate (401), and a limiting groove (409) for the limiting blocks (408) to slide is provided on the inner wall of the sliding cavity.

8. The portable aerial work maintenance auxiliary anti-fall device according to claim 1 is characterized by: The lifting mechanism (502) comprises a fixed top frame (5021) fixedly connected to the bottom of the shell-falling prevention device (501); the bottom end of the fixed top frame (5021) is movably connected to a folding lifting frame (5022); the inside of the folding lifting frame (5022) is movably connected to an electric hydraulic cylinder (5023); and the bottom end of the folding lifting frame (5022) is movably connected to a fixed bottom frame (5024).

9. The portable high-altitude maintenance auxiliary anti-fall device according to claim 8, characterized in that: The horizontal adjustment support mechanism (503) comprises a device frame (5031) fixedly connected to the bottom end of the fixed base frame (5024), the four sides of the bottom end of the device frame (5031) are fixedly connected to an electric telescopic rod (5032), the bottom end of the electric telescopic rod (5032) is fixedly connected to a movable seat (5033), and the four corners of the bottom end of the movable seat (5033) are fixedly connected to movable rollers (5034), wherein the sides of the movable rollers (5034) are fixedly connected to wheel brakes.