Portable ladder truck for urban rail transit

Abstract

The utility model discloses a portable ladder truck for urban rail transit. The portable ladder truck comprises a ladder frame, a cross beam and supporting legs, the climbing frame comprises a plurality of groups of telescopic frames, and the telescopic frames are oppositely arranged in pairs; the two ends of each cross beam are fixed to the telescopic ends of every two adjacent telescopic frames so that the telescopic frames can be connected to form the square climbing frame. One ends of the multiple supporting legs are hinged to the fixed ends of the multiple sets of telescopic frames in a one-to-one correspondence mode, and the other ends of the multiple supporting legs are rotationally connected with universal wheels. Telescopic operation of the ladder truck is achieved through the multiple sets of telescopic frames, the cross beams can be connected with the multiple sets of telescopic frames on one hand and serve as ladder steps of the ladder truck on the other hand, the telescopic frames are in a contracted state, the supporting legs are folded, the ladder truck can move through the universal wheels, the occupied space of the ladder truck is reduced, and carrying and transferring are convenient; by means of the aerial work platform, the operation safety of operators can be improved, the construction difficulty can be reduced, and the construction convenience can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit operation equipment technical field more particularly, it is a portable climbing car for urban rail transit. BACKGROUND

[0002] At present, rail transit climbing operation is basically using herringbone ladder or double side bamboo joint ladder, according to rail transit operation regulation, herringbone ladder cannot be taken on tramcar, transfer is inconvenient, and time consumption is relatively long, and herringbone ladder or double side bamboo joint ladder is insufficient in safety and stability, and work efficiency is influenced.

[0003] Therefore, how to provide a portable climbing car that can improve the safety of operator operation, reduce construction difficulty and improve construction convenience is a problem to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a portable climbing car for urban rail transit, aiming at solving the above technical problems.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A portable climbing car for urban rail transit, comprising a climbing frame, a cross beam and a support leg;

[0007] The climbing frame comprises a plurality of telescopic frames, and the telescopic frames are arranged opposite to each other in pairs; the cross beam has a plurality of roots, and the two ends of the cross beam are respectively fixed to the telescopic ends of the adjacent two groups of telescopic frames to connect the plurality of telescopic frames to form a square climbing frame.

[0008] The support leg is provided with a plurality of support legs, one end of the support leg is respectively hinged to the fixed end of the plurality of telescopic frames in one-to-one correspondence, and the other end is rotatably connected with a universal wheel.

[0009] The above-mentioned technical scheme has the beneficial effects that the telescopic frame is in a retracted state, the support leg is folded, and the climbing car can be moved through the universal wheel, reducing the occupied space of the climbing car and facilitating transportation and transfer; the telescopic frame is extended, and the support leg is opened, so that the climbing car can be used for high-altitude operation, and the support leg can support the climbing car to ensure the stability of the climbing car during use.

[0010] Preferably, the telescopic frame is provided with four groups, and the four groups of telescopic frames are respectively located at the four corners of the climbing frame.

[0011] The telescopic frame comprises a plurality of hollow square frames, which are sequentially sleeved one above another; the outer wall of the square frame at the upper layer is in sliding abutment with the inner wall of the square frame at the lower layer adjacent thereto, and the top end of the square frame at the lower layer is fixedly connected to the bottom end of the square frame at the upper layer adjacent thereto by means of buckling to limit the sliding of the square frame at the upper layer.

[0012] The two ends of the plurality of cross beams are respectively fixedly connected to the top ends or bottom ends of the plurality of square frames arranged opposite to each other on the two groups of telescopic frames.

[0013] The telescopic frame has a plurality of square frames sequentially sleeved one above another, and the square frame can improve the stability and carrying capacity of the telescopic frame after extension or contraction, thereby ensuring that the telescopic frame has sufficient support.

[0014] Preferably, the cross beam between the two square frames at the lowermost layer and the middle part of the cross beam corresponding to the two square frames at the uppermost layer are rotationally connected with pulleys, and a rope is wound between the plurality of pulleys to control the extension or contraction state of the climbing frame. The extension or contraction state of the telescopic frame can be controlled by pulling the rope, and the use is more convenient.

[0015] Preferably, the square frame is sequentially welded by a plurality of aluminum alloy square tubes with a wall thickness of 3 mm. The aluminum alloy square tube can reduce the weight of the whole climbing vehicle while ensuring that the square frame has sufficient rigidity, thereby facilitating carrying and transportation.

[0016] Preferably, the square frame has at least ten layers from top to bottom. The climbing vehicle has sufficient telescopic space to meet the demand of urban rail transit overhead operation.

[0017] Preferably, the support height of the supporting leg is greater than the height of the fixed end of the telescopic frame. After the supporting leg is folded, the universal wheel can be used as a caster of the climbing vehicle to facilitate the movement of the climbing vehicle; during use of the climbing vehicle, the supporting leg can be opened to support the climbing vehicle, thereby ensuring the safety factor in the climbing operation.

[0018] Preferably, an anti-skid pad is fixed on the outer bottom wall of the bottom frame of the fixed end of the telescopic frame by means of rivets. During use, the bottom surface of the fixed end of the telescopic frame is in contact with the ground through the anti-skid pad, which can prevent the movement of the climbing vehicle during operation and improve the friction coefficient between the ground and the climbing vehicle.

[0019] Preferably, a brake controller is fixed on the universal wheel to limit the rotation of the universal wheel. During use, the universal wheel is fixed by the brake controller to prevent the rotation of the universal wheel; in the folded state, the brake effect of the brake controller can be contacted, thereby facilitating the movement and transportation of the climbing vehicle.

[0020] Preferably, the climbing frame is a herringbone frame, and a work platform is fixed to the top surface of the herringbone frame.

[0021] Preferably, the supporting leg is made of 50*50*2mm angle steel, and the height is not less than 90cm.

[0022] Compared with the prior art, the portable climbing vehicle for urban rail transit provided by the utility model realizes telescopic operation of the climbing vehicle through multiple telescopic frames, the cross beam can be connected with multiple telescopic frames on one hand, and the cross beam can be used as up and down steps of the climbing vehicle on the other hand, the telescopic frame is in a retracted state, the supporting leg is folded, and the portable climbing vehicle can be moved through the universal wheel, the occupation space of the portable climbing vehicle is reduced, and the portable climbing vehicle is convenient to carry and transport; the telescopic frame is elongated, the supporting leg is unfolded, and high-altitude operation is performed, the safety of operation of the operator can be improved, the construction difficulty can be reduced, and the construction convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to the provided drawings without paying creative labor.

[0024] Fig. 1 The front view of the climbing vehicle provided by the utility model is shown in the figure.

[0025] Fig. 2 The side view of the climbing vehicle provided by the utility model is shown in the figure.

[0026] Fig. 3 The plan view of the climbing vehicle provided by the utility model is shown in the figure.

[0027] Fig. 4 The front view of the climbing vehicle provided by the utility model is shown in the figure.

[0028] Fig. 5 The side view of the climbing vehicle provided by the utility model is shown in the figure.

[0029] Fig. 6 The plan view of the climbing vehicle provided by the utility model is shown in the figure.

[0030] Among them,

[0031] 1-climbing frame; 2-telescopic frame; 3-pulley; 4-fastener; 5-supporting leg; 6-universal wheel; 7-brake controller; 8-non-slip pad; 9-work platform; 10-cross beam. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Referring to the drawings, Figs. 1-6 The embodiment of the utility model discloses a portable climbing car for urban rail transit, including climbing frame 1, crossbeam 10 and support leg 5.

[0034] Climbing frame 1 includes multiple groups of telescopic frames 2, and the multiple groups of telescopic frames 2 are arranged oppositely in pairs. The crossbeam 10 is multiple, and the two ends of the multiple crossbeams 10 are fixed with the telescopic ends of the adjacent two groups of telescopic frames 2 respectively to connect the multiple groups of telescopic frames 2 to form a square climbing frame 1.

[0035] The support leg 5 is provided with multiple, and one end of the multiple support legs 5 is hingedly connected to the fixed end of the multiple groups of telescopic frames 2 one by one, and the other end is rotatably connected with the universal wheel 6.

[0036] Figs. 1-3 As shown, the climbing car is in the folding state, and in this state, the support leg is in the folding state, and the support leg can be used as the walking frame of the climbing car, and the movement of the climbing car can be realized by pushing;

[0037] Figs. 4-6 As shown, the climbing car is in the unfolded state, and in this state, the support leg is opened for support, and the fixed end of the telescopic frame is in contact with the ground, and the crossbeam can be used as the up and down ladder step of the climbing car.

[0038] In order to further optimize the above technical scheme, the telescopic frame 2 is provided with four groups, and the four groups of telescopic frames 2 are located at the four corners of the climbing frame 1.

[0039] The telescopic frame 2 includes multiple hollow square frames, and the multiple square frames are sequentially sleeved in sequence. The outer wall of the square frame located in the upper layer is in sliding abutment with the inner wall of the square frame located in the adjacent lower layer, and the top end of the square frame located in the lower layer and the bottom end of the square frame located in the adjacent upper layer can be clamped and fixed by the buckle 4 to limit the sliding of the square frame located in the upper layer.

[0040] The two ends of the multiple crossbeams 10 are vertically fixed on the top end or the bottom end of the multiple square frames arranged oppositely on the two groups of telescopic frames 2.

[0041] Referring to the drawings, Fig. 4 and 5When the telescopic frame is opened, the upper and lower square frames can be clamped and limited from sliding by the buckle to ensure stability during the climbing operation, and the buckle is made of steel; the cross beam can be used as the upper and lower steps to realize the climbing up and down of the climbing vehicle.

[0042] In order to further optimize the above technical solution, the middle part of the cross beam 10 between the two square frames at the lowermost layer and the cross beam 10 corresponding to the two square frames at the uppermost layer are rotationally connected with pulleys 3, and ropes are wound between the plurality of pulleys 3 to control the telescopic state of the climbing frame 1. The telescopic state of the climbing vehicle can be controlled by the ropes, which is more convenient and fast, and can effectively save manpower.

[0043] In the embodiment, the climbing vehicle meets the lightweight requirement, and the square frame is sequentially welded by a plurality of aluminum alloy square tubes with a wall thickness of 3 mm. The square frame has at least ten layers from top to bottom.

[0044] In order to further optimize the above technical solution, the support height of the supporting leg 5 is greater than the height of the fixed end of the telescopic frame 2. In the closed state of the supporting leg, the bottom end of the telescopic frame is higher than the bottom surface, and the universal wheel of the supporting leg can realize the walking of the climbing vehicle; in the open state of the supporting leg, the bottom end of the telescopic frame is in contact with the bottom surface, and the supporting leg supports the telescopic frame to ensure its stability.

[0045] In order to further optimize the above technical solution, the outer bottom wall of the fixed end bottom frame of the telescopic frame 2 is fixed with a non-slip pad 8 by a rivet. When the climbing vehicle is elongated, the bottom end of the telescopic frame is in contact with the ground, and the non-slip pad can improve the friction coefficient between the telescopic frame and the ground, and improve the anti-skid performance of the climbing vehicle.

[0046] In order to further optimize the above technical solution, the universal wheel 6 is fixed with a brake controller 7 to limit the rotation of the universal wheel 6. The bottom end of the telescopic frame is in contact with the bottom surface, the supporting leg supports the telescopic frame, and the brake controller can prevent the rotation of the universal wheel during use to ensure the safety and stability during the high-altitude operation.

[0047] In order to further optimize the above technical solution, the climbing frame 1 is a herringbone frame, and the top surface is fixed with an operation platform 9.

[0048] In order to further optimize the above technical solution, the supporting leg 5 is made of 50*50*2mm angle steel, and the height is not less than 90cm.

[0049] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the related parts can be referred to the method part.

[0050] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable aerial platform for urban rail transit, characterized in that: It comprises a climbing frame (1), a crossbeam (10) and supporting legs (5); The climbing frame (1) comprises a plurality of telescopic frames (2), wherein the plurality of telescopic frames (2) are arranged opposite to each other in pairs; the number of the cross beams (10) is a plurality, and the ends of the plurality of cross beams (10) are respectively fixed to the telescopic ends of two adjacent groups of telescopic frames (2) to connect the plurality of telescopic frames (2) to form the square climbing frame (1); There are a plurality of supporting legs (5), one end of each of the supporting legs (5) is hinged to the fixed ends of the plurality of telescopic frames (2) in a one-to-one correspondence, and the other end is rotatably connected to a universal wheel (6).

2. A portable aerial platform for urban rail transit according to claim 1, characterized in that: The telescopic frames (2) are provided in four groups, and the four groups of telescopic frames (2) are respectively located at the four corners of the climbing frame (1); The telescopic frame (2) comprises a plurality of square frames with hollow interiors, and the plurality of square frames are sequentially sleeved up and down; the outer wall of the square frame at the upper layer slides against the inner wall of the adjacent square frame at the lower layer, and the top end of the square frame at the lower layer and the bottom end of the adjacent square frame at the upper layer can be fixedly engaged by a fastener (4) to limit the sliding of the square frame at the upper layer; The two ends of the plurality of cross beams (10) are respectively and vertically fixed to the top ends or bottom ends of the plurality of square frames arranged oppositely on the two groups of telescopic frames (2).

3. A portable aerial platform for urban rail transit according to claim 2, characterized in that: The middle parts of the cross beam (10) between the two square frames on the bottom layer and the cross beam (10) corresponding to the two square frames on the top layer are both rotatably connected to pulleys (3), and ropes are wound between the multiple pulleys (3) to control the telescopic state of the climbing frame (1).

4. A portable aerial platform for urban rail transit according to claim 3, characterized in that: The square frame is formed by welding a plurality of aluminum alloy square tubes with a wall thickness of 3 mm in sequence end to end.

5. The portable aerial platform for urban rail transit according to claim 4, characterized in that: The square frame is provided with at least ten layers from top to bottom.

6. The portable aerial platform for urban rail transit according to claim 1, characterized in that: The supporting height of the supporting legs (5) is greater than the height of the fixed end of the telescopic frame (2).

7. The portable aerial platform for urban rail transit according to claim 1, characterized in that: An anti-slip pad (8) is fixed to the outer bottom wall surface of the bottom frame beam of the fixed end of the telescopic frame (2) via rivets.

8. The portable aerial platform for urban rail transit according to claim 1, characterized in that: A brake controller (7) is fixed on the universal wheel (6) to limit the rotation of the universal wheel (6).

9. The portable aerial platform for urban rail transit according to claim 1, characterized in that: The climbing frame (1) is a herringbone frame, and a working platform (9) is fixed on its top surface.

10. The portable aerial platform for urban rail transit according to claim 1, characterized in that: The supporting legs (5) are made of 50*50*2mm angle steel, and their height is not less than 90cm.

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