Anti-tipping ladder truck for subway electromechanical construction

By designing a mobile and foldable ladder truck, the problems of insufficient stability and limited use of ladder trucks in subway electromechanical construction have been solved. It enables stable high-altitude operations and material transportation in narrow spaces, has multiple uses, and saves storage space.

CN223536276UActive Publication Date: 2025-11-11ZHONGTIEJIAN ELECTRIC HUAJU GRP NO 4 ENG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202422705321.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-11-11
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Existing ladder trucks lack stability and safety in subway electromechanical construction, especially in uneven or sloping tunnels where they are prone to tipping over. They also have limited uses, cannot be folded and stored, and take up a lot of space.

Method used

A ladder car was designed, comprising a working platform, a movable body, and a support assembly. The body can be slidably connected to the rails, the working platform is foldable, the support assembly provides stability, and it can be used independently as a material transport vehicle.

Benefits of technology

It enables stable high-altitude operations in confined spaces, is highly versatile, and can flexibly move and transport materials, saving storage space.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223536276U_ABST
    Figure CN223536276U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of metro maintenance, and discloses an anti-tipping ladder truck for metro electromechanical construction, which comprises an operation platform for supporting an operator to perform construction operation; the movable vehicle body is used for being connected to the two parallel rails in a sliding manner; the upper end of the supporting assembly is connected with the working platform, and the lower end of the supporting assembly is connected with the movable vehicle body. In the using process, the movable trolley body is connected to the two parallel rails in a sliding mode, and the working platform abuts against the side wall of a tunnel and is supported by the supporting assembly. By moving the movable vehicle body, the working platform can be driven to move so as to change the working position. In addition, when the movable vehicle body is independently used, the movable vehicle body can be converted into a material transport vehicle, material transport is achieved, the problem of interval material transport is effectively solved, and multiple purposes are achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of subway maintenance technology, and in particular to an anti-tipping subway electromechanical construction ladder vehicle. Background Technology

[0002] During subway electromechanical construction, high-altitude operations are often required in narrow and uneven spaces. While existing ladders and mobile platform vehicles offer some convenience, their stability and safety are often insufficient. Especially in tunnels with uneven or sloping ground, this can easily lead to the ladder vehicle tipping over, causing equipment damage and personnel injuries.

[0003] Patent document CN220300359U discloses a monorail ladder car for subway signal cable installation, comprising: a working platform for supporting operators; a support assembly connected to the working platform for supporting the working platform; and a fixed connection assembly connected to the support assembly for connecting to the rails and fixing the monorail ladder car. By extending and retracting the first support arm and adjusting the tilt angle of the second support rod to adjust the lifting height of the working platform, the technical problem of fixed height and low stability during movement of current monorail ladder cars is solved, thus meeting the requirements for different leaky cable installation heights.

[0004] However, the above-mentioned patents have the following drawbacks: on the one hand, this type of ladder truck is only used for construction needs and cannot be used to transport materials, so its purpose is relatively limited; on the other hand, the lifting platform of the truck mostly adopts a fixed structure, which cannot be folded and stored, and occupies a large space when stored. Utility Model Content

[0005] The present invention aims to provide an anti-tipping ladder truck for subway electromechanical construction to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A tilt-resistant metro electromechanical construction ladder truck includes:

[0008] The work platform is used to support workers in carrying out construction operations;

[0009] A movable car body for sliding connection to two parallel rails; and

[0010] The support component is connected to the working platform at the top and to the movable vehicle body at the bottom.

[0011] Furthermore, the movable vehicle body includes:

[0012] Cargo board;

[0013] Along the width direction of the two rails, at least one side of the loading plate is equipped with a connecting lug, which is detachably connected to the lower end of the support assembly; and

[0014] Wheels mounted on the lower surface of the load-bearing plate.

[0015] Furthermore, the operating platform includes:

[0016] The working base plate is connected to the upper end of the support components;

[0017] Four vertical rods hinged at the four corners of the working base plate and arranged in a matrix; and

[0018] Multiple connecting rods arranged horizontally and vertically, with both ends of each connecting rod rotatably connected to the vertical rod; and

[0019] A limiting device used to selectively achieve vertical locking between a vertical rod and the working base plate.

[0020] Furthermore, the limiting component includes an inclined limiting rod, the two ends of which are detachably connected to the working base plate and the vertical rod, respectively.

[0021] Furthermore, a plurality of side pulleys are installed on the side of the working base plate away from the load plate, and the side pulleys are used to slide in connection with the tunnel wall.

[0022] Furthermore, one of the two vertical rods near the side of the loading platform is hinged to one side of the protective door; the other of the two vertical rods near the side of the loading platform is detachably connected to the other side of the protective door.

[0023] Furthermore, a latch is provided on the other side of the protective door, and a plug rod is movably connected inside the latch; another of the two vertical rods near the side of the loading plate is provided with a socket, and the socket is provided with a socket hole. The plug rod is adapted to the socket hole and is used to insert into the socket hole to lock the protective door and the vertical rod.

[0024] Furthermore, the support component includes:

[0025] Two inclined first support rods are spaced apart along the length of the rail. The lower end of each first support rod is hinged to a connecting lug, and the upper end of each first support rod is hinged to the end of the working base plate near the load plate.

[0026] Two inclined second support rods are provided in a one-to-one correspondence with the two first support rods. The lower end of the second support rod is rotatably connected to the middle of the first support rod, and the upper end of the second support rod is hinged to the end of the working base plate away from the load plate.

[0027] Furthermore, a ladder is provided between the two first support rods. The upper end of the first support rod is provided with a plurality of first connecting holes, which are spaced apart along the length of the first support rod. One of the plurality of first connecting holes is hinged to the end of the working base plate near the load plate by a fastener. The upper end of the second support rod is provided with a plurality of second connecting holes, which are spaced apart along the length of the second support rod. One of the plurality of second connecting holes is hinged to the end of the working base plate away from the load plate by a fastener.

[0028] Furthermore, a handle is installed on the cargo platform, and the wheel is a single-sided wheel.

[0029] Compared with the prior art, this utility model has at least the following advantages:

[0030] (1) In the use of this utility model, the movable vehicle body is slidably connected to two parallel rails, and the working platform abuts against the tunnel sidewall and is supported by the support components. By moving the movable vehicle body, the working platform can be moved to change the working position. In addition, when the movable vehicle body is used alone, it can be transformed into a material transport vehicle to realize material transportation, effectively solve the problem of material transportation in the section, and has multiple uses.

[0031] (2) The working platform in this utility model is designed to be foldable, which has the effect of saving storage space. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of the anti-tipping subway electromechanical construction ladder truck of this utility model;

[0034] Figure 2 This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0035] Figure 3 This is a schematic diagram of the structure of the movable vehicle body of this utility model.

[0036] Reference numerals: 1. Working platform; 2. Movable vehicle body; 3. Support assembly; 11. Working base plate; 12. Vertical rod; 13. Connecting rod; 14. Limiting rod; 15. Side pulley; 16. Protective door; 17. Pin; 18. Insert rod; 19. Socket; 21. Carrying plate; 22. Connecting lug; 23. Wheel; 24. Handle; 31. First support rod; 32. Ladder; 33. First connecting hole; 34. Second support rod; 35. Second connecting hole. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figure 1 This utility model provides an anti-tipping ladder truck for subway electromechanical construction, used to assist workers in carrying out electromechanical construction work inside subway tunnels. Specifically, it includes a work platform 1, a movable vehicle body 2, and a support assembly 3. The work platform 1 supports workers during construction work; workers stand on the work platform 1 to perform electromechanical construction work on the inner sidewalls of the tunnel. The movable vehicle body 2 is slidably connected to two parallel rails. The upper end of the support assembly 3 is connected to the work platform 1, and the lower end is connected to the movable vehicle body 2.

[0040] In the use of this utility model, the movable vehicle body 2 is slidably connected to two parallel rails, and the working platform 1 abuts against the tunnel sidewall and is supported by the support assembly 3. By moving the movable vehicle body 2, the working platform 1 can be moved to change the working position. In addition, when used alone, the movable vehicle body 2 can be transformed into a material transport vehicle to realize material transportation, effectively solve the problem of material transportation between sections, and has multiple uses.

[0041] Reference Figure 3The movable vehicle body 2 specifically includes a carrying plate 21, connecting ears 22, and wheels 23. The carrying plate 21 is made of multiple channel steels welded together in an alternating pattern and can be used to carry materials for material transportation. Connecting ears 22 are installed on at least one side of the carrying plate 21 along the width of the two rails, and the connecting ears 22 are detachably connected to the lower end of the support assembly 3. Preferably, two connecting ears 22 are installed on each side of the carrying plate 21 so that the support assembly 3 and the working platform 1 can be installed on the sides of the movable vehicle body 2 respectively. To facilitate the movement of the carrying plate 21, wheels 23 are installed on the lower surface of the carrying plate 21. The wheels 23 are preferably single-sided wheels, with four single-sided wheels arranged in a rectangular array on the lower surface of the carrying plate 21. The single-sided wheels slide and engage with the rails in pairs, providing a blocking effect and preventing the carrying plate 21 from sliding along the width of the rails. Furthermore, to facilitate operation of the carrying plate 21, a handle 24 is installed on the carrying plate 21.

[0042] Refer again Figure 1 The work platform 1 includes a work base plate 11, vertical rods 12, connecting rods 13, and limiting components. The work base plate 11 serves as a support platform for the operator and is connected to the upper end of the support assembly 3. The support platform has a rectangular structure, with four vertical rods 12 located at the four corners of the support platform and arranged vertically. Multiple connecting rods 13 are provided, arranged longitudinally or laterally, with both ends rotatably connected to the vertical rods 12. The limiting components are used to selectively lock the vertical rods 12 vertically to the work base plate 11. When the limiting components are not provided, the work base plate 11 can be flipped downwards, allowing the work platform 1 to fold and reduce storage space.

[0043] Specifically, the limiting component includes an inclined limiting rod 14, with both ends of the limiting rod 14 detachably connected to the working base plate 11 and the vertical rod 12, respectively. When both ends of the limiting rod 14 are fixedly connected to the working base plate 11 and the vertical rod 12, the vertical rod 12 is perpendicular to the working base plate 11, allowing workers to stand on the working base plate 11 to perform electromechanical construction work. Conversely, when at least one of the working base plate 11 and the vertical rod 12 is released from the limiting rod 14, the working base plate 11 will flip downwards, achieving a folding effect.

[0044] Optionally, a plurality of side pulleys 15 are installed on the side of the working base plate 11 away from the load plate 21, and the side pulleys 15 are used to slide in connection with the tunnel wall.

[0045] To facilitate workers' access to and from the work platform 1, one of the two vertical rods 12 near the load plate 21 is hinged to one side of the protective door 16; the other of the two vertical rods 12 near the load plate 21 is detachably connected to the other side of the protective door 16.

[0046] Specifically, refer to Figure 3On the other side of the protective door 16, there is a latch 17, and a plug rod 18 is movably connected inside the latch 17; on the other side of the two vertical rods 12 near the loading plate 21, there is a socket 19, and the socket 19 is provided with a socket hole. The plug rod 18 is adapted to the socket hole and is used to insert into the socket hole to lock the protective door 16 and the vertical rod 12.

[0047] Refer again Figure 1 The support assembly 3 specifically includes two first support rods 31 and two second support rods 34. Both the first support rods 31 and the second support rods 34 are inclined to effectively prevent the work platform 1 from tipping over. The two first support rods 31 are spaced apart along the length of the rail. The lower end of the first support rod 31 is hinged to the connecting lug 22, and the upper end of the first support rod 31 is hinged to the end of the work base plate 11 near the load plate 21. The two second support rods 34 are arranged one-to-one with the two first support rods 31. The lower end of the second support rod 34 is rotatably connected to the middle of the first support rod 31, and the upper end of the second support rod 34 is hinged to the end of the work base plate 11 away from the load plate 21.

[0048] A ladder 32 is provided between the two first support rods 31 to facilitate workers to go up and down the work platform 1.

[0049] To facilitate height adjustment of the work platform 1, the upper end of the first support rod 31 is provided with multiple first connecting holes 33, which are spaced apart along the length of the first support rod 31. One of the first connecting holes 33 is hinged to the end of the work base plate 11 near the load plate 21 via a fastener. The upper end of the second support rod 34 is provided with multiple second connecting holes 35, which are spaced apart along the length of the second support rod 34. One of the second connecting holes 35 is hinged to the end of the work base plate 11 away from the load plate 21 via a fastener. By connecting the first connecting holes 33 and second connecting holes 35 at different positions to the work base plate 11, the height of the work platform 1 can be adjusted.

[0050] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A tilt-resistant metro electromechanical construction ladder truck, characterized in that, include: The work platform (1) is used to support workers in carrying out construction work; The movable car body (2) is used to slide on two parallel rails; and The support component (3) is connected at its upper end to the working platform (1) and at its lower end to the movable vehicle body (2); the movable vehicle body (2) includes: Carrier plate (21); Along the width direction of the two rails, at least one side of the loading plate (21) is equipped with a connecting lug (22), which is detachably connected to the lower end of the support assembly (3); and Wheels (23) are mounted on the lower surface of the load plate (21).

2. The anti-tipping metro electromechanical construction ladder truck according to claim 1, characterized in that, The operating platform (1) includes: The working base plate (11) is connected to the upper end of the support component (3); Four vertical rods (12) hinged at the four corners of the working base plate (11) and arranged in a matrix; and Multiple connecting rods (13) are arranged longitudinally and transversely, with both ends of each connecting rod (13) rotatably connected to the vertical rod (12); and A limiting element used to selectively achieve vertical locking between the vertical rod (12) and the working base plate (11).

3. The anti-tipping metro electromechanical construction ladder truck according to claim 2, characterized in that, The limiting component includes a limiting rod (14) that is inclined, and the two ends of the limiting rod (14) are detachably connected to the working base plate (11) and the vertical rod (12) respectively.

4. The anti-tipping metro electromechanical construction ladder truck according to claim 2, characterized in that, The working base plate (11) is equipped with a plurality of side pulleys (15) on the side away from the load plate (21), and the side pulleys (15) are used to slide in connection with the tunnel wall.

5. The anti-tipping metro electromechanical construction ladder truck according to claim 2, characterized in that, One of the two vertical rods (12) near the side of the loading plate (21) is hinged to one side of the protective door (16); the other of the two vertical rods (12) near the side of the loading plate (21) is detachably connected to the other side of the protective door (16).

6. The anti-tipping metro electromechanical construction ladder truck according to claim 5, characterized in that, A latch (17) is provided on the other side of the protective door (16), and a plug rod (18) is movably connected inside the latch (17); a socket (19) is provided on the other side of the two vertical rods (12) near the side of the loading plate (21), and a socket hole is provided on the socket (19). The plug rod (18) is adapted to the socket hole and is used to be inserted into the socket hole to lock the protective door (16) and the vertical rod (12).

7. The anti-tipping metro electromechanical construction ladder truck according to claim 6, characterized in that, The support component (3) includes: Two inclined first support rods (31) are spaced apart along the length of the rail. The lower end of each first support rod (31) is hinged to a connecting lug (22), and the upper end of each first support rod (31) is hinged to the end of the working base plate (11) near the load plate (21). Two inclined second support rods (34) are provided in a one-to-one correspondence with the two first support rods (31). The lower end of the second support rod (34) is rotatably connected to the middle of the first support rod (31), and the upper end of the second support rod (34) is hinged to the end of the working base plate (11) away from the load plate (21).

8. The anti-tipping metro electromechanical construction ladder truck according to claim 7, characterized in that, A ladder (32) is provided between the two first support rods (31). The upper end of the first support rod (31) is provided with a plurality of first connecting holes (33). The plurality of first connecting holes (33) are spaced apart along the length direction of the first support rod (31). One of the plurality of first connecting holes (33) is hinged to the end of the working base plate (11) near the load plate (21) by a fastener. The upper end of the second support rod (34) is provided with a plurality of second connecting holes (35). The plurality of second connecting holes (35) are spaced apart along the length direction of the second support rod (34). One of the plurality of second connecting holes (35) is hinged to the end of the working base plate (11) away from the load plate (21) by a fastener.

9. The anti-tipping metro electromechanical construction ladder truck according to claim 8, characterized in that, The loading platform (21) is equipped with a handle (24), and the wheel (23) is a single-sided wheel.

Citation Information

Patent Citations

  • Monorail ladder vehicle for subway signal leaky cable construction

    CN220300359U