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CN-224220626-U - Multi-guide-rail universal type anti-falling device

CN224220626UCN 224220626 UCN224220626 UCN 224220626UCN-224220626-U

Abstract

The utility model discloses a multi-guide-rail universal type anti-falling device which comprises a skeleton plate, a bottom wheel, cutter shaft assemblies, small brake arms, large brake arms, rope tying plates and torsion springs, wherein the two skeleton plate faces are symmetrically arranged in a face-to-face mode, the two skeleton plates are connected together through front and rear cutter shaft assemblies at the top, the front and rear ends of the bottom of the inner side wall of each skeleton plate are respectively provided with the bottom wheel, the outer part of the wheel face of the bottom wheel is an outer cone wheel face, the inner part of the wheel face of the bottom wheel is a flat wheel face, the bottom wheel is arranged to be a round angle face at the inner edge of the flat wheel face, the small brake arms and the large brake arms are hinged to the top through the cutter shaft assemblies respectively, the inner end bottoms of the small brake arms and the inner end bottoms of the large brake arms are provided with circular arc through grooves of round guide rails, the rope tying plates are hinged to the outer ends of the small brake arms and the large brake arms, and the torsion springs are sleeved on the cutter shaft assemblies and are elastically connected between the large brake arms and the skeleton plates. The utility model is applicable to various guide rails, has strong universality, and is more stable and reliable by adopting double-arm braking.

Inventors

  • ZHANG LINSHENG
  • GU YUANYUAN

Assignees

  • 广东智凌科技有限公司

Dates

Publication Date
20260512
Application Date
20250514

Claims (9)

  1. 1. A multi-guide-rail universal type anti-falling device is characterized by comprising a skeleton plate (1), a bottom wheel (2), a cutter shaft assembly (3), a small braking arm (4), a large braking arm (5), a rope fastening plate (7) and a torsion spring (8), wherein the two skeleton plates (1) are symmetrically arranged on the surface facing each other, the two skeleton plates (1) are connected together through the front cutter shaft assembly (3) and the rear cutter shaft assembly (3) at the top, the front end and the rear end of the bottom of the inner side wall of the skeleton plate (1) are respectively provided with the bottom wheel (2), the outer part of the wheel surface of the bottom wheel (2) is an outer conical wheel surface (204), the outer conical wheel surface (204) is contacted with a wide guide rail (13) and an oblique bottom surface of an I-shaped guide rail (14), the inner part of the wheel surface of the bottom wheel (2) is a flat wheel surface (203), the Ping Lunmian (203) is contacted with the flat bottom surface of the narrow top plate of the narrow guide rail (12), the bottom wheel (2) is arranged to be an angle surface (205) at the inner side edge of the Ping Lunmian (203), the angle surface (205) is contacted with the round bottom surface (205) of the round bottom surface (4) and the small braking arm (4) is hinged with the top of the large braking arm (4) respectively, the inner end bottom surfaces of the small braking arm (4) and the large braking arm (5) are provided with circular arc through grooves (401) which are used for giving way to the circular guide rail (15), the inner ends of the small braking arm (4) and the large braking arm (5) can be clamped on the top surfaces of the narrow guide rail (12), the wide guide rail (13), the I-shaped guide rail (14) and the circular guide rail (15), a rope tying plate (7) for connecting a safety rope is hinged to the outer ends of the small braking arm (4) and the large braking arm (5), and a torsion spring (8) is sleeved on the cutter shaft assembly (3) and is elastically connected between the large braking arm (5) and the framework plate (1).
  2. 2. The multi-guide-rail universal type safety hook according to claim 1, wherein a plurality of protection plates are arranged at the bottom of the inner side wall of the framework plate (1), and the protection plates are used for protecting the bottom wheels (2).
  3. 3. The multi-guide-rail universal type safety hook according to claim 1, wherein the skeleton plate (1) is coaxially provided with an inward protruding cutter shaft sheath (101) at a through hole of the cutter shaft assembly (3), and the cutter shaft sheath (101) limits the side wall of the small brake arm (4) or the large brake arm (5).
  4. 4. The multi-guide-rail universal type safety hook according to claim 3, wherein the cutter shaft assembly (3) comprises a cutter shaft main body and cutter shaft fastening nails (304), two ends of the cutter shaft main body are connected in the cutter shaft sheath (101) in a penetrating mode, the outer ends of the cutter shaft main body are locked through the cutter shaft fastening nails (304), a middle table (301) with an increased diameter is arranged in the middle of the cutter shaft main body, and a pin shaft hole of the small brake arm (4) or the large brake arm (5) can be connected to the middle table (301) in a penetrating mode in a rotating mode.
  5. 5. The multi-guide-rail universal type safety hook according to claim 4, wherein an end groove (102) is coaxially formed in the end face of the cutter shaft sheath (101), a limiting block (103) is arranged on the side wall of the end groove (102), the end portion of the middle table (301) is inserted into the end groove (102) in a matched mode, and a limiting notch (302) is formed in the end portion of the middle table (301) in a matched mode with the limiting block (103).
  6. 6. The multi-guide universal fall arrester according to claim 1, characterized in that the inner side wall of the skeleton plate (1) is provided with a guiding inclined plane (104) at the insertion position of the wide guide rail (13) and the wide wing plate of the I-shaped guide rail (14).
  7. 7. The multi-guide-rail universal type safety hook according to claim 1, wherein a weight-reducing groove (105) for reducing weight is formed in the middle of the inner side wall of the skeleton plate (1).
  8. 8. The multi-guide-rail universal type safety hook according to claim 1, further comprising a limiting middle wheel (9), a middle wheel shaft (10) and middle wheel shaft fastening nails (11), wherein the limiting middle wheel (9) is arranged in the middle of the two cutter shaft assemblies (3) in parallel, is erected on the upper portion of the framework plate (1) through the middle wheel shaft (10), the end portion of the middle wheel shaft (10) is fixed on the framework plate (1) through the middle wheel shaft fastening nails (11), and a circular groove (901) matched with the top surface of the circular guide rail (15) is formed in the middle of the limiting middle wheel (9).
  9. 9. The multi-guide-rail universal type safety hook according to claim 8, wherein outer wheel surfaces of the limiting middle wheel (9) on two sides of the circular groove (901) are cylindrical surfaces, and the cylindrical surfaces can be in rolling contact with the top surfaces of the wide wing plates of the wide guide rail (13) and the I-shaped guide rail (14).

Description

Multi-guide-rail universal type anti-falling device Technical Field The utility model relates to the technical field of safety guards, in particular to a multi-guide rail universal type safety guard. Background In the construction maintenance of wind power tower section of thick bamboo or power transmission and distribution line, often need the operating personnel to climb tower section of thick bamboo or iron tower and operate, climb after installing the safety hook on the guide rail and being connected with the safety rope, when the operating personnel falls down when losing the foot, the safety hook can lock fast on the guide rail to avoid operating personnel to take place unexpected. However, existing rail-type fall arresters are often only suitable for use with one cross-sectional type of rail, and different rails often match different fall arresters. When the worker is required to climb on different iron towers on the operation site, if the types of the guide rails of the falling protector are inconsistent, the matched falling protector is required to be replaced, so that the operation efficiency is reduced. For example, the utility model patent with publication number CN218652772U discloses a universal guide rail type fall arrester, which comprises a first panel, a second panel, bottom wheels, a brake knife, side wheels and an upper roller, wherein the first panel and the second panel are consistent in structure and are symmetrically arranged in the opposite surface, the first panel and the second panel are connected together through a top connecting structure, bottom guard plates are arranged on the inner sides of the bottom parts of the first panel, the side wheels are arranged on the front side and the rear side of the bottom guard plates, gaps are arranged on the bottom guard plates and are provided with the bottom wheels, the outer surface main body of the bottom wheels is a round table surface, the round table surface contacts the bottom surface of the guide rail top plate, the round table surface protrudes inwards to form an inner flat surface, the inner flat surface is a cylindrical surface, the brake knife is hinged to the top through a second fixed shaft of the top connecting structure, the inner end of the brake knife can be clamped on the top surface of the guide rail, the first fixed shaft is arranged at the front part of the top connecting structure and is provided with the upper roller, and a roller arc groove is arranged on the upper roller. The universal guide rail type safety hook in the technical scheme is applicable to various types of guide rails, but is easy to generate unstable braking in a mode of centering braking by adopting a single braking knife. Because, in order to be applicable to different guide rails and carry out the adaptation, need with the space setting between brake sword bottom and the return pulley big enough, all when with the smaller guide rail cooperation of braking cross section, the margin is great, appears the skew condition easily, leads to the braking time jamming, can't reset. Therefore, there is a need to develop a multi-rail universal fall arrester. Disclosure of utility model The utility model aims to provide a multi-guide rail universal type anti-falling device which can be suitable for various guide rails, has strong universality, adopts double-arm braking and is more stable and reliable. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model discloses a multi-guide-rail universal anti-falling device which comprises a skeleton plate, a bottom wheel, a cutter shaft assembly, small brake arms, large brake arms, a rope fastening plate and torsion springs, wherein the two skeleton plate faces are symmetrically arranged in a face-to-face mode, the two skeleton plates are connected together through the front cutter shaft assembly and the rear cutter shaft assembly at the top, the front end and the rear end of the bottom of the inner side wall of the skeleton plate are respectively provided with one bottom wheel, the outer part of the wheel face of the bottom wheel is an outer conical wheel face, the outer conical wheel face is in contact with the inclined bottom face of a wing plate of a wide guide rail and an I-shaped guide rail, the inner part of the wheel face of the bottom wheel is a flat wheel face, the flat wheel face is in contact with the flat bottom face of a narrow top plate of a narrow guide rail, the bottom wheel is provided with a round angle face at the edge of the inner side of the flat wheel face, the round angle face of the bottom wheel is in contact with the bottom face of the round guide rail, the small brake arms and the large brake arms are hinged to the top through the cutter shaft assembly respectively, the inner end faces of the inner ends of the small brake arms and the large brake arms are provided with circular arc through grooves for enabling the round guide rails