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CN-224228600-U - Foldable ladder car

CN224228600UCN 224228600 UCN224228600 UCN 224228600UCN-224228600-U

Abstract

The utility model belongs to the field of a ladder car, in particular to a foldable ladder car, which aims at the problem that an operator needs to spend a great deal of time and effort to carry out complicated cart running and pushing processes because the existing ladder car cannot be folded and restored quickly. According to the utility model, through the arrangement of the locking mechanism, an operator can rapidly realize folding and restoring operations of the ladder car, the ladder car can be easily folded and laid down to rapidly avoid the running rail car, the support frame can be rapidly supported to finish locking and restoring the ladder car after the car passes, and complicated trolley descending and pushing processes are not needed, so that the avoidance is greatly saved, the subway construction efficiency is improved, and the labor intensity is reduced.

Inventors

  • WANG YACHAO
  • GUO YANLU
  • LU YANZE
  • Tan Dayu
  • KANG YANZHAO
  • NIU JIWEI
  • ZHAO XINGXING

Assignees

  • 中铁七局集团电务工程有限公司

Dates

Publication Date
20260512
Application Date
20250804

Claims (6)

  1. 1. A collapsible ladder truck comprising: the device comprises an underframe (1) and a protection frame (20), wherein two supporting frames (2) are symmetrically hinged to two sides of the top of the underframe (1), and the same platform (3) is hinged to the tops of the two supporting frames (2); The novel folding and supporting device is characterized in that a locking mechanism is arranged on the underframe (1) and used for locking and unlocking the two supporting frames (2), folding and supporting of the supporting frames (2) are facilitated, and an adjusting mechanism is arranged on the platform (3) and used for adjusting the height of the protective frame (20).
  2. 2. The foldable ladder car according to claim 1, characterized in that the locking mechanism comprises a rack (5) fixedly arranged on the inner side of the underframe (1), pin rods (6) are fixedly arranged on the two sides of the rack (5) in a penetrating and sliding manner, the pin rods (6) can be separated from the side surface inserted in the support frame (2), two connecting frames (7) are symmetrically arranged in the rack (5) in a sliding manner, two pin rods (6) located on the same side are fixedly connected with the connecting frames (7) on the same side, pressing blocks (10) are fixedly connected with the two sides of the rack (5) in a penetrating and sliding manner, sliding rods (8) are fixedly arranged on the inner sides of one connecting frame (7), the other ends of the sliding rods (8) are fixedly arranged on one side of the other connecting frame (7) in a penetrating and sliding manner, springs (9) are sleeved on the outer sides of the sliding rods, and two ends of each spring (9) are fixedly connected with one side, close to the spring seats, of the two connecting frames (7), of the two spring seats are fixedly connected with the two sides of the connecting frames.
  3. 3. The foldable ladder car as set forth in claim 1, wherein the adjusting mechanism comprises four supporting columns (18) which are rectangular and fixedly arranged at the top of the platform (3), sleeves (19) are sleeved outside the four supporting columns (18), the protecting frame (20) is fixedly arranged at the top ends of the four sleeves (19), two supporting columns (18) on opposite angles are longitudinally provided with a plurality of positioning holes (21), a fixing frame (22) is fixedly arranged on one side of each sleeve (19) sleeved outside the two supporting columns (18) on opposite angles, a pressing frame (23) is hinged on the inner side of the fixing frame (22), a bolt (24) is hinged on the inner side of the lower part of the pressing frame (23), the bolt (24) is slidably arranged on one side of the sleeve (19) in a detachable manner and is inserted in the positioning holes (21), a spring seat second (25) is fixedly arranged on the inner side of the upper part of the pressing frame (23) through a spring seat, and the other end of the spring second (25) is fixedly arranged on one side of the sleeve (19) through the fixing seat.
  4. 4. The foldable ladder car as set forth in claim 1, wherein two positioning posts (13) are fixedly arranged above two sides of two supporting frames (2), a shifting block (14) is rotatably arranged on the inner sides of a plurality of the positioning posts (13), a positioning post (11) is slidably arranged below two sides of two supporting frames (2), a shifting block (12) is rotatably arranged on the inner sides of a plurality of the positioning posts (11), lantern rings are sleeved on the outer sides of the positioning posts (13) and the positioning posts (11), one supporting rod (17) is fixedly arranged between two lantern rings on opposite angles, and two supporting rods (17) on the same side are hinged.
  5. 5. The foldable ladder car as claimed in claim 4, characterized in that a plurality of positioning posts (11) located below are fixedly provided with slide posts (15) on one side, and two support frames (2) are rotatably provided with hook frames (16) on one side of the slide posts (15).
  6. 6. Collapsible ladder truck according to claim 1, characterized in that the two sides of the chassis (1) are provided with four rail wheels (4) in a rectangular rotation.

Description

Foldable ladder car Technical Field The utility model relates to the technical field of a ladder car, in particular to a foldable ladder car. Background The track ladder car is a maintenance and overhaul operation device specially designed for railway systems such as railways and subways, and consists of a movable chassis frame, a climbing ladder frame, an operation platform, a driving system and the like. At present, when the existing ladder car is operated by a railway vehicle in the subway construction process, the existing ladder car needs to be pushed to the lower lane of the entrance to avoid, and then the railway vehicle is pushed into construction after passing through, although the mode can ensure the passing of the railway vehicle, the existing ladder car cannot be folded and restored quickly in the process, so that operators need to spend a great deal of time and effort to carry out complicated pushing down and pushing processes, the subway construction efficiency is reduced, and the labor intensity is also increased. Disclosure of utility model The utility model aims to solve the defects that in the prior art, folding and recovering operations cannot be performed on a ladder car rapidly, so that the subway construction efficiency is reduced, and the labor intensity is increased. In order to achieve the above purpose, the present utility model adopts the following technical scheme: A collapsible ladder truck comprising: The device comprises a bottom frame and a protection frame, wherein two sides of the top of the bottom frame are symmetrically hinged with two supporting frames, and the tops of the two supporting frames are hinged with the same platform; The chassis is provided with a locking mechanism which is used for locking and unlocking the two supporting frames, folding and supporting of the supporting frames are facilitated, the platform is provided with an adjusting mechanism, and the adjusting mechanism is used for adjusting the height of the protective frame. In a possible design, locking mechanical system is including fixing the rack that sets up in the chassis inboard, the both sides of rack are all run through the slip and are provided with the pin pole, the pin pole can break away from the side of inserting the locating support frame, the inside of rack is the symmetry slip and is provided with two link, two that are located the homonymy the pin pole is with the link fixed connection of homonymy, the both sides of rack are all run through the slip and are provided with according to the piece, two according to the inboard of piece respectively with two link fixed connection, one of them the inboard of link is all fixed and is provided with the slide bar, the other end of slide bar runs through the slip and sets up in another link one side, the outside cover of slide bar is equipped with spring one, the both ends of spring one are respectively through the spring holder in one side fixed connection that two links are close to mutually. In a possible design, adjustment mechanism is including being the fixed four support columns that set up in the platform top of rectangle, four the outside of support column all overlaps and is equipped with the sleeve pipe, the protection frame is fixed to be set up in four sheathed tube tops, is located two of diagonal side support column one side is all vertically offered a plurality of locating holes, is located two of diagonal side support column outside cover sleeve pipe one side is all fixed and is provided with the mount, the inboard articulated frame that is provided with of mount, the inboard articulated bolt that is provided with in below of frame, the bolt slides and wears to locate sheathed tube one side and to break away from to insert and locate in the locating hole, the top inboard of locating the frame is provided with the spring second through the spring holder is fixed, the other end of spring second passes through the spring holder and fixes and set up in sheathed tube one side. In one possible design, two the both sides top of support frame is all fixed and is provided with reference column two, and is a plurality of the inboard of reference column two is all rotated and is provided with the shifting block two, two the both sides below of support frame is all slided and is provided with reference column one, and is a plurality of the inboard of reference column one is all rotated and is provided with the shifting block one, and the outside of reference column two and reference column one that is located the homonymy all overlaps and is equipped with the lantern ring, is fixed to be provided with same vaulting pole between two lantern rings of diagonal side, is located two articulated mutually between the vaulting pole. In one possible design, a plurality of first positioning columns positioned below are fixedly provided with sliding columns on one sides, and two supporting frames are rotatably provided with hook frames on one sides o