Adjustable tunnel construction trolley

By designing adjustable support components and climbing components, the problem of fixed dimensions of tunnel trolley support columns was solved, enabling convenient movement and climbing of the tunnel construction trolley and improving construction efficiency.

CN224149571UActive Publication Date: 2026-04-21CHINA RAILWAY NO 3 GRP CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing adjustable load-bearing foot suspension tunnel trolley support columns have fixed dimensions, which makes construction operations cumbersome and inconvenient for workers to climb, thus affecting construction efficiency.

Method used

The design incorporates adjustable support and climbing components. A drive motor drives a threaded rod to move the support column and extension rod. Combined with the vertical and horizontal bars of the climbing component, this enables convenient adjustment and climbing of the support column.

Benefits of technology

It enables convenient movement and climbing of the tunnel construction trolley, improves construction efficiency, and facilitates operation by staff in different locations within the tunnel.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224149571U_ABST
    Figure CN224149571U_ABST
Patent Text Reader

Abstract

The utility model discloses an adjustable tunnel construction trolley, which belongs to the technical field of tunnel construction and comprises two movable bottom plates. The adjustable supporting assembly is arranged, the whole device is moved into the tunnel to be constructed, after one movable bottom plate is attached to one side of the tunnel, a driving motor is started, the driving motor operates to drive a threaded rod to rotate, the threaded rod rotates to drive a threaded sleeve to move, and the threaded sleeve moves to drive a transmission rod to move; the transmission rod moves to drive the connecting strip to move, the connecting strip moves to drive the moving strip to move, the moving strip moves to drive the extending rod to move, the extending rod moves to drive the supporting column to move, the supporting column moves to drive the other moving bottom plate to move to be attached to the other side of the tunnel, and the position relation between the extending rod and the fixing frame is conveniently adjusted. And therefore, workers can conveniently carry out construction operation on different positions of the tunnel on the extension rods and the fixing frame.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, specifically relating to an adjustable tunnel construction trolley. Background Technology

[0002] A formwork trolley, also known as a lining trolley, is mainly used for pouring secondary lining concrete in tunnels and water diversion tunnels. A formwork trolley typically consists of a formwork assembly, a top formwork frame, a translation mechanism assembly, a gantry assembly, a master-slave traveling mechanism, screw jacks, a hydraulic system, and an electrical system.

[0003] The existing adjustable load-bearing foot suspension tunnel trolley has a fixed support column size. When workers operate on the support column, they can only carry out construction operations on the accessible parts. When construction operations are needed in other parts, the entire device must be moved manually, which is cumbersome and affects construction efficiency. Moreover, when workers climb onto the support column, they cannot use other parts for leverage, which makes climbing inconvenient and affects the work efficiency of the workers. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an adjustable tunnel construction trolley, which is easy to move, adjust, and climb.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable tunnel construction trolley, including a movable base plate, wherein two movable base plates are arranged sequentially from left to right, and several lifting hydraulic cylinders are fixedly connected above each of the two movable base plates, and support columns are fixedly connected to the output ends of the lifting hydraulic cylinders. An adjustable support assembly is arranged between two corresponding support columns, and a climbing component is arranged on the side wall of one of the adjustable support assemblies.

[0006] Preferably, the adjustable support assembly includes a fixed frame and an extension rod, wherein the fixed frame is fixedly connected to the side wall of one support column, and the extension rod is fixedly connected to the side wall of the other support column and located inside the fixed frame.

[0007] Preferably, the adjustable support assembly further includes a driving component, a moving strip, and a moving port. The moving strip is fixedly connected to one end of the extension rod near the fixed frame. A moving port is provided on the side wall of the fixed frame at the position corresponding to the moving strip. A driving component is provided between the fixed frame and the moving strip.

[0008] Preferably, the driving component includes a base box, a connecting strip, a transmission rod, a drive motor, an opening, a threaded rod, and a threaded sleeve. The base box is fixedly connected to the bottom of one of the fixed frames and to the side of the moving opening. The drive motor is fixedly connected to the inner side wall of the base box. The output end of the drive motor is fixedly connected to the threaded rod. The threaded sleeve is threadedly connected to the outer side wall of the threaded rod. The transmission rod is fixedly connected to the side wall of the threaded sleeve. An opening is provided on the base box at the position corresponding to the transmission rod. The connecting strip is fixedly connected to the end of the moving strip away from the fixed frame and to the end of the transmission rod.

[0009] Preferably, the climbing assembly includes vertical rods, horizontal rods, fixing screws, and fixing nuts. One of the base boxes has fixing screws fixedly connected to both ends on one side. The vertical rods are sleeved around the fixing screws. A fixing nut is threaded onto the outer wall of the fixing screws and located on one side of the vertical rods. A horizontal rod is fixedly connected between the two vertical rods.

[0010] Preferably, both ends of the crossbar are provided with step grooves, and anti-slip pads are fixedly connected to the side walls of the step grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model features an adjustable support assembly. The entire device is moved into the tunnel to be constructed, and one of the movable base plates is brought into contact with one side of the tunnel. The drive motor is then activated, causing the threaded rod to rotate. This rotation of the threaded rod causes the threaded sleeve to move, which in turn moves the transmission rod. The transmission rod then moves the connecting strip, which in turn moves the moving strip. This movement of the moving strip then moves the extension rod, which in turn moves the support column. The movement of the support column then moves the other movable base plate to contact the other side of the tunnel. This allows for easy adjustment of the positional relationship between the extension rod and the fixed frame, facilitating construction operations at different locations within the tunnel by workers on the extension rod and the fixed frame.

[0013] 2. This utility model is equipped with a climbing component. Workers attach the vertical pole to the outside of the fixing screw and screw the fixing nut onto the fixing screw. When workers need to climb onto the fixed frame and extension rod for construction operations, they step on the foot groove and climb up the horizontal bar, making it convenient for workers to climb onto the fixed frame and extension rod for construction operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3This is a bottom view of the connection between the fixed frame and the extension rod of this utility model.

[0017] Figure 4 This utility model Figure 3 Enlarged view of point B in the middle;

[0018] Figure 5 This is a schematic diagram of the structure of the bottom box of this utility model.

[0019] In the diagram: 1. Support column; 2. Adjustable support assembly; 21. Fixed frame; 22. Extension rod; 23. Drive component; 231. Base box; 232. Connecting strip; 233. Transmission rod; 234. Drive motor; 235. Opening; 236. Threaded rod; 237. Threaded sleeve; 24. Moving strip; 25. Moving opening; 3. Moving base plate; 4. Lifting hydraulic cylinder; 5. Climbing assembly; 51. Footing groove; 52. Vertical bar; 53. Horizontal bar; 54. Fixing screw; 55. Fixing nut. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-5 The present invention provides the following technical solution: an adjustable tunnel construction trolley, including a movable base plate 3, two movable base plates 3 are provided in total, arranged from left to right, and a number of lifting hydraulic cylinders 4 are fixedly connected above the two movable base plates 3. The output end of the lifting hydraulic cylinder 4 is fixedly connected to a support column 1, and an adjustable support component 2 is provided between two corresponding support columns 1. A climbing component 5 is provided on the side wall of one of the adjustable support components 2.

[0023] Specifically, the adjustable support assembly 2 includes a fixed frame 21 and an extension rod 22. The fixed frame 21 is fixedly connected to the side wall of one support column 1, and the extension rod 22 is fixedly connected to the side wall of the other support column 1, located inside the fixed frame 21.

[0024] By adopting the above technical solution, the entire device is moved into the tunnel to be constructed using the movable base plate 3, so that one of the movable base plates 3 is in contact with one side of the tunnel. Then, the support column 1 on the other movable base plate 3 is moved by hand. The movement of the support column 1 causes the movable base plate 3 to move and be in contact with the other side of the tunnel. At the same time, the movement of the support column 1 causes the extension rod 22 to move inside the fixed frame 21. Subsequently, the workers can walk and move on the extension rod 22 and the fixed frame 21 to carry out construction operations at different positions in the tunnel. This facilitates the workers to carry out construction operations on tunnels of different widths and improves the workers' work efficiency.

[0025] Specifically, the adjustable support assembly 2 also includes a drive component 23, a movable bar 24, and a movable opening 25. The movable bar 24 is fixedly connected to one end of the extension rod 22 near the fixed frame 21. A movable opening 25 is provided on the side wall of the fixed frame 21 at the position corresponding to the movable bar 24. The drive component 23 is provided between the fixed frame 21 and the movable bar 24.

[0026] By adopting the above technical solution, when it is necessary to adjust the positional relationship between the extension rod 22 and the fixed frame 21, the driving component 23 drives the moving bar 24 to move inside the moving port 25. The movement of the moving bar 24 drives the extension rod 22 to move inside the fixed frame 21, which makes it convenient for the staff to adjust the positional relationship between the extension rod 22 and the fixed frame 21.

[0027] Specifically, the driving component 23 includes a base box 231, a connecting strip 232, a transmission rod 233, a drive motor 234, an opening 235, a threaded rod 236, and a threaded sleeve 237. The base box 231 is fixedly connected to the bottom of a fixed frame 21 and to one side of the moving opening 25. The drive motor 234 is fixedly connected to the inner wall of the base box 231. The output end of the drive motor 234 is fixedly connected to the threaded rod 236. The threaded sleeve 237 is threadedly connected to the outer wall of the threaded rod 236. The transmission rod 233 is fixedly connected to the side wall of the threaded sleeve 237. An opening 235 is provided on the base box 231 at a position corresponding to the transmission rod 233. The connecting strip 232 is fixedly connected to the end of the moving strip 24 away from the fixed frame 21 and located at the end of the transmission rod 233.

[0028] By adopting the above technical solution, the drive motor 234 inside the bottom box 231 is started. The drive motor 234 drives the threaded rod 236 to rotate. The rotation of the threaded rod 236 drives the threaded sleeve 237 to move. The movement of the threaded sleeve 237 drives the transmission rod 233 to move inside the opening 235. The movement of the transmission rod 233 drives the connecting bar 232 to move. The movement of the connecting bar 232 drives the moving bar 24 to move inside the moving port 25, which facilitates the movement operation of the moving bar 24.

[0029] In this embodiment, the entire device is moved into the tunnel to be constructed using the movable base plate 3, with one of the movable base plates 3 fitting against one side of the tunnel. Then, the drive motor 234 inside the base box 231 is activated. The drive motor 234 drives the threaded rod 236 to rotate, which in turn moves the threaded sleeve 237. The movement of the threaded sleeve 237 moves the transmission rod 233 within the opening 235, which in turn moves the connecting bar 232. The movement of the connecting bar 232 moves the moving bar 24 within the moving port 25, and the movement of the moving bar 24 moves the extension rod 22 within the fixed frame. The internal movement of extension rod 22 causes support column 1 to move, and the movement of support column 1 causes another moving base plate 3 to move and fit against the other side of the tunnel, which facilitates the adjustment of the positional relationship between extension rod 22 and fixed frame 21. This makes it easier for workers to carry out construction operations at different locations in the tunnel on extension rod 22 and fixed frame 21. Workers climb onto extension rod 22 and fixed frame 21, and then use lifting hydraulic cylinder 4 to drive support column 1 to move up and down. The movement of support column 1 drives fixed frame 21 and extension rod 22 to move up and down, which makes it easier for workers to carry out construction operations at different locations in the tunnel.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that the climbing component 5 includes a vertical rod 52, a horizontal rod 53, a fixing screw 54, and a fixing nut 55. One of the base boxes 231 has fixing screws 54 fixedly connected to both ends on one side. A vertical rod 52 is sleeved around the fixing screw 54. A fixing nut 55 is threaded onto the outer wall of the fixing screw 54, located on one side of the vertical rod 52. A horizontal rod 53 is fixedly connected between the two vertical rods 52.

[0032] Specifically, both ends of the crossbar 53 are provided with foot grooves 51, and anti-slip pads are fixedly connected to the side walls of the foot grooves 51.

[0033] By adopting the above technical solution, the staff can climb by stepping on the footrest 51, which is convenient for the staff to operate, and the anti-slip mat can prevent the staff's feet from slipping.

[0034] In this embodiment, when the worker uses the vertical rod 52, the worker attaches it to the outside of the fixing screw 54, and screws the fixing nut 55 onto the fixing screw 54. When the worker needs to climb onto the fixing frame 21 and the extension rod 22 for construction operations, the worker places their feet inside the foot groove 51 and climbs up along the horizontal bar 53, making it convenient for the worker to climb onto the fixing frame 21 and the extension rod 22 for construction operations.

[0035] In this utility model, the drive motor 234 is a previously disclosed technology, and the selected model is Y80M1-2.

[0036] The working principle and usage process of this utility model are as follows: The operator attaches the vertical rod 52 to the outer periphery of the fixing screw 54 and screws the fixing nut 55 onto the fixing screw 54. Using the movable base plate 3, the entire device is moved into the tunnel to be constructed, with one of the movable base plates 3 fitting against one side of the tunnel. Then, the drive motor 234 inside the base box 231 is started. The drive motor 234 drives the threaded rod 236 to rotate, which in turn moves the threaded sleeve 237. The movement of the threaded sleeve 237 moves the transmission rod 233 within the opening 235, which in turn moves the connecting strip 232. The movement of the connecting strip 232 moves the moving strip 24 within the moving opening 25, which in turn moves the extension rod 22 within the fixed frame 21. The movement of the extension rod 22 then... The support column 1 moves, which in turn moves another movable base plate 3 to fit against the other side of the tunnel. This facilitates the adjustment of the positional relationship between the extension rod 22 and the fixed frame 21, thereby enabling workers to perform construction operations at different locations in the tunnel from the extension rod 22 and the fixed frame 21. When workers need to climb onto the fixed frame 21 and the extension rod 22 for construction operations, they place their feet inside the footrest 51 and climb upwards along the crossbar 53. After climbing onto the extension rod 22 and the fixed frame 21, the lifting hydraulic cylinder 4 drives the support column 1 to move up and down. The movement of the support column 1 in turn drives the movement of the fixed frame 21 and the extension rod 22, making it easier for workers to perform construction operations at different locations in the tunnel.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable tunnel construction trolley, comprising two movable base plates (3), the two movable base plates (3) are sequentially arranged from left to right, a plurality of lifting hydraulic cylinders (4) are fixedly connected above the two movable base plates (3), a support column (1) is fixedly connected to the output end of the lifting hydraulic cylinder (4), characterized in that: Corresponding two support columns (1) are provided with adjustable support assemblies (2), and the sidewall of one of the adjustable support assemblies (2) is provided with a climbing assembly (5).

2. The adjustable tunnel construction trolley according to claim 1, characterized in that The adjustable support assembly (2) comprises a fixed frame (21) and an extension rod (22), and the sidewall of one of the support columns (1) is fixedly connected with the fixed frame (21), and the sidewall of the other support column (1) and located inside the fixed frame (21) is fixedly connected with the extension rod (22).

3. A tunable tunneling construction trolley as claimed in claim 2, characterized in that: The adjustable support assembly (2) further comprises a driving member (23), a moving strip (24) and a moving port (25), one end of the extension rod (22) close to the fixed frame (21) is fixedly connected with the moving strip (24), the sidewall of the fixed frame (21) and corresponding to the position of the moving strip (24) is provided with the moving port (25), and the driving member (23) is arranged between the fixed frame (21) and the moving strip (24).

4. A tunable tunneling construction trolley according to claim 3, characterized in that: The driving member (23) comprises a bottom box (231), a connecting strip (232), a transmission rod (233), a driving motor (234), an opening (235), a threaded rod (236) and a threaded sleeve (237), one side of the bottom box (231) and located at one side of the moving port (25) is fixedly connected with the bottom box (231), the inner side wall of the bottom box (231) is fixedly connected with the driving motor (234), the output end of the driving motor (234) is fixedly connected with the threaded rod (236), the outer side wall of the threaded rod (236) is threadedly connected with the threaded sleeve (237), the sidewall of the threaded sleeve (237) is fixedly connected with the transmission rod (233), the opening (235) is formed on the bottom box (231) and corresponding to the position of the transmission rod (233), and one end of the moving strip (24) away from the fixed frame (21) and located at one end of the transmission rod (233) is fixedly connected with the connecting strip (232).

5. A tunable tunneling jumbo according to claim 4, characterized in that: The climbing assembly (5) comprises a vertical rod (52), a horizontal rod (53), a fixed screw rod (54) and a fixed nut (55), and the two ends of one side of the bottom box (231) are fixedly connected with the fixed screw rod (54), the vertical rod (52) is sleeved on the outer periphery of the fixed screw rod (54), the fixed nut (55) is threadedly connected on the outer side wall of the fixed screw rod (54) and located at one side of the vertical rod (52), and the horizontal rod (53) is fixedly connected between the two vertical rods (52).

6. A tunable tunneling construction trolley according to claim 5, characterized in that: The upper ends of the horizontal rod (53) are provided with stepping grooves (51), and the sidewall of the stepping groove (51) is fixedly connected with the anti-skid pad.