Tunnel side wall operation trolley

Abstract

The utility model relates to tunnel construction technical field provides a kind of tunnel side wall operation trolley, including bearing table, support subassembly includes first support frame and second support frame, first support frame is located in the bottom of bearing table along vertical direction, one end of second support frame is connected with bearing table, the other end extends obliquely and is connected with first support frame, and the inclination angle of second support frame is compatible with the radian of tunnel side wall, drive subassembly is used to drive operation trolley to move, limiting component is respectively arranged in the side opposite of first support frame and second support frame, for limiting operation trolley transverse and lateral displacement, the utility model reduces the clearance between bearing table and tunnel side wall by support subassembly, and form stable work platform, the utility model is simple and convenient to operate, can satisfy the demand of different working scene, avoid frequent disassembly, save material and time cost, and greatly improve work efficiency and security guarantee.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a tunnel sidewall operation trolley. Background Technology

[0002] In tunnel construction, cable trenches are crucial for ensuring the safe operation of power and communication systems. Currently, cable trenches in tunnel sidewalls are mostly constructed using a secondary lining method. This technique creates an "L-shaped" or "groove-shaped" trench between the invert arch filling structure and the tunnel sidewall. The narrow working space within this trench significantly increases the difficulty of processes such as rebar connection, sidewall roughening, and formwork reinforcement.

[0003] The current construction process mainly relies on the construction of temporary working platforms made of wooden planks. These platforms are usually set up in trenches. Due to the influence of the sloping or curved surfaces of the tunnel sidewalls, the platforms are still a certain distance from the construction surface, making it difficult for workers to operate. In addition, since the platforms are temporary, they have low load-bearing capacity, poor stability, and need to be frequently assembled and disassembled, which not only leads to low construction efficiency but also poses significant safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a tunnel sidewall operation trolley to solve the problems in the prior art. It integrates functions such as operation platform, mobile walking, and safety protection, and effectively solves the shortcomings of the prior art.

[0005] This utility model provides a tunnel sidewall construction trolley, comprising:

[0006] Support platform;

[0007] The support assembly includes a first support frame and a second support frame. The first support frame is vertically disposed at the bottom of the support platform. One end of the second support frame is connected to the support platform, and the other end extends obliquely and is connected to the first support frame. The inclination angle of the second support frame is adapted to the curvature of the tunnel sidewall.

[0008] The traveling mechanism includes a driving component and a limiting component. The driving component is located at the bottom of the first support frame and is used to drive the working trolley to move. The limiting component is located on the opposite side of the first support frame and the second support frame and is used to limit the lateral and side displacement of the working trolley.

[0009] In the tunnel sidewall operation trolley described above, preferably, the drive assembly includes a drive member and a first traveling wheel, the output end of the drive member being connected to the first traveling wheel for driving the first traveling wheel to rotate.

[0010] In the tunnel sidewall operation trolley described above, preferably, the limiting component includes an elastic support member and a second traveling wheel, one end of the elastic support member is connected to the first support frame and the second support frame respectively, and the other end is connected to the second traveling wheel respectively.

[0011] In the tunnel sidewall construction trolley described above, preferably, the elastic support includes a compression spring, a guide sleeve, and a slider. The compression spring is disposed inside the guide sleeve, and the guide sleeve has an axial groove. The slider can move within the groove, and one end of the slider is connected to the compression spring, while the other end extends to the outside of the guide sleeve and is connected to the second traveling wheel.

[0012] In the tunnel sidewall construction trolley described above, preferably, the support platform is provided with a protective assembly, including a sleeve and a rod, wherein the sleeve is fixedly connected to the support platform and the rod is movably connected inside the sleeve.

[0013] In the tunnel sidewall construction trolley described above, preferably, the first support frame includes a frame body and support rods, the frame body being welded in an I-shape, and the support rods being staggered within the frame body.

[0014] In the tunnel sidewall construction trolley described above, preferably, the second support frame includes at least one inclined support rod, the top end of which is connected to the edge of the bearing platform, and the bottom end is connected to the middle or lower part of the first support frame.

[0015] Compared with the prior art, this utility model reduces the gap between the support platform and the tunnel sidewall by using a support component, forming a stable working platform with improved load-bearing capacity. The working trolley is driven by a walking mechanism, which can prevent the working trolley from shifting laterally. This utility model is simple and convenient to operate, can meet the needs of different working scenarios, avoids frequent disassembly and assembly, saves material and time costs, and greatly improves work efficiency and safety. Attached Figure Description

[0016] Figure 1 This is a side view of the tunnel sidewall operation trolley provided in an embodiment of this utility model;

[0017] Figure 2 This is a front view of the tunnel sidewall operation trolley provided in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the elastic support member provided in an embodiment of this utility model;

[0019] Figure 4 This is a diagram showing the usage status of the tunnel sidewall operation trolley provided in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the tunnel sidewall and trench provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Support platform;

[0023] 20. First support frame; 200. Frame body; 201. Support rod; 21. Second support frame; 210. Diagonal support rod;

[0024] 30. Walking mechanism; 31. Drive assembly; 310. Drive component; 311. First walking wheel; 32. Limiting assembly; 320. Compression spring; 321. Guide sleeve; 322. Slide groove; 323. Slider; 324. Second walking wheel;

[0025] 40. Protective components; 41. Sleeve; 42. Rod body;

[0026] 50. Tunnel sidewall; 51. Trench. Detailed Implementation

[0027] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] Secondary lining structures typically refer to secondary linings, which are permanent support structures constructed after the initial support. Drainage ditches, cable trenches, embedded parts, and equipment installations are usually constructed after the secondary lining. See also Figure 5 As shown, this process creates an "L-shaped" or "groove-shaped" narrow working space between the invert arch filling structure and the tunnel sidewall 50. Since the tunnel sidewall 50 is curved, this working space forms a groove 51 with one side curved. During operation, a temporary working platform is erected using wooden planks and placed in the groove 51. One side of the platform is difficult to fit against the curved tunnel sidewall 50. Therefore, the gap between the working platform and the tunnel sidewall 50 can easily cause workers to get stuck in the gap or cause construction tools and materials to fall. In addition, the working platform lacks lateral restraint and is only supported by the bottom. It is prone to tilting or shaking due to uneven force or load center shift, which brings great safety hazards.

[0029] See Figure 1 As shown, this embodiment provides a tunnel sidewall construction trolley, including a support platform 10, a support assembly, and a traveling mechanism 30, wherein:

[0030] The support platform 10 is used to support workers and place construction tools and materials.

[0031] The support assembly includes a first support frame 20 and a second support frame 21. The first support frame 20 is vertically positioned at the bottom of the support platform 10. One end of the second support frame 21 is connected to the support platform 10, and the other end extends obliquely and connects to the first support frame 20. The inclination angle of the second support frame 21 is adapted to the curvature of the tunnel sidewall 50. The first support frame 20 provides support for the support platform 10 and can move on the bottom surface of the trench 51. The second support frame 21 provides lateral support for the support platform 10. The support platform 10 can be positioned as close as possible to the tunnel sidewall 50 to ensure that the gap between the support platform 10 and the tunnel sidewall 50 will not cause construction tools to fall. The second support frame 21 obliquely connects the support platform 10 and the first support frame 20 to ensure that the support platform 10 will not tilt due to uneven force.

[0032] See Figure 2 As shown, in this embodiment, the first support frame 20 includes a frame body 200 and support rods 201. The frame body 200 is welded in an I-shape, and the support rods 201 are staggered within the frame body 200. The second support frame 21 includes at least one inclined support rod 210. The top end of the inclined support rod 210 is connected to the edge of the bearing platform 10, and the bottom end is connected to the middle or lower part of the first support frame 20. The inclined support rods 210, the bearing platform 10, and the first support frame 20 form a triangular structure. The inclined support rods 210 can be evenly spaced according to the length of the bearing platform 10, so that the bearing platform 10 can be as close as possible to the tunnel sidewall 50, while also enhancing lateral support stability. Of course, the second support frame 21 can also be an inclined support plate.

[0033] See Figure 1-2 As shown, the traveling mechanism 30 includes a drive assembly 31 and a limiting assembly 32. The drive assembly 31 is located at the bottom of the first support frame 20 and is used to drive the working trolley to move. The limiting assembly 32 is located on the opposite side of the first support frame 20 and the second support frame 21, respectively, and is used to limit the lateral and side displacement of the working trolley. The drive assembly 31 enables the flexible movement of the working trolley and adapts to the needs of working in narrow spaces. The limiting assembly 32 is respectively attached to the two side walls of the trench 51 to prevent the working trolley from deviating laterally.

[0034] See Figure 2 As shown, in one feasible embodiment, the drive assembly 31 includes a drive member 310 and a first traveling wheel 311. The output end of the drive member 310 is connected to the first traveling wheel 311 and is used to drive the first traveling wheel 311 to rotate. The drive member 310 is a motor, the fixed end of the motor is provided on the first support frame 20, and the output end of the motor is connected to the first traveling wheel 311. By controlling the forward and reverse rotation of the motor, the trolley can be controlled to move forward or backward.

[0035] See Figure 4As shown, one side of the trench 51 is the arc-shaped wall of the tunnel sidewall 50, and the other side is a vertical wall. The height of the support platform 10 is generally higher than the height of the vertical wall. Therefore, during the movement of the work trolley, it may still deviate. For this reason, in this embodiment, the limiting component 32 includes an elastic support and a second traveling wheel 324. One end of the elastic support is connected to the first support frame 20 and the second support frame 21 respectively, and the other end is connected to the second traveling wheel 324 respectively. The two side wheels abut against the two side walls of the trench 51 respectively. When the drive assembly 31 drives the trolley to move, the second side wheels 324 also move on the two side walls, providing auxiliary guidance, cooperating with the forward power of the drive assembly 31, and constraining the trolley from lateral deviation in the trench 51, ensuring that the support platform 10 always maintains a preset gap with the side wall. In addition, since there may be a certain error in the distance between the two side walls of the trench 51, the elastic support can achieve flexible limiting, so that the second side wheels 324 always keep in contact with the wall surface. Moreover, during the construction process, the movement of the workers may generate lateral forces, and the elastic support can absorb these impact forces through deformation to ensure the stability of the trolley.

[0036] See Figure 3 As shown, in one feasible embodiment, the elastic support includes a compression spring 320, a guide sleeve 321, and a slider 323. The compression spring 320 is disposed inside the guide sleeve 321, and a groove 322 is provided axially inside the guide sleeve 321. The slider 323 can move within the groove 322, and one end of the slider 323 is connected to the compression spring 320, while the other end extends to the outside of the guide sleeve 321 and is connected to the second traveling wheel 324. When the distance between the two side walls of the trench 51 decreases, the second traveling wheel 324 is subjected to force on the slider 323, and the slider 323 moves within the groove 322, simultaneously compressing the compression spring 320. The second traveling wheel 324 moves towards one side of the guide sleeve 321. It should be noted that the compression amount of the compression spring 320 in the relaxed state is adapted to the maximum distance between the two side walls of the trench 51, ensuring that the elastic support is tightly fitted to the tunnel sidewall 50 or the sidewall of the trench 51 throughout the entire range of changes in the width of the trench 51, thereby achieving a stable limiting function.

[0037] In this embodiment, a protective component 40 is provided on the support platform 10, including a sleeve 41 and a rod 42. The sleeve 41 is fixedly connected to the support platform 10, and the rod 42 is movably connected inside the sleeve 41. The sleeve 41 serves as a connector between the rod 42 and the support platform 10. The rod 42 can be flexibly configured as needed, and the movable connection method makes disassembly easier, eliminating the need for frequent setup of the work platform.

[0038] Based on the above embodiments, the working principle of the tunnel sidewall 50 working trolley of this utility model is as follows:

[0039] After the trolley is assembled, it is hoisted into the trench 51, with the second traveling wheels 324 on both sides abutting against the tunnel sidewall 50 and the sidewall of the trench 51 respectively. After the workers enter the support platform 10, they install the rod 42 as needed. The drive component 31 drives the trolley to move along the length direction in the trench 51. At the same time, the limiting component 32 guides the movement of the tunnel sidewall 50 and the sidewall of the trench 51 and restricts the lateral deviation of the trolley. When the distance between the sidewall of the trench 51 and the tunnel sidewall 50 narrows, the second traveling wheels 324 squeeze and compress the spring 320, and the limiting component 32 and the two side walls self-adaptively adjust to ensure the lateral and side stability of the support platform 10.

[0040] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A tunnel sidewall jumbo, characterized in that, include: Support platform; The support assembly includes a first support frame and a second support frame. The first support frame is vertically disposed at the bottom of the support platform. One end of the second support frame is connected to the support platform, and the other end extends obliquely and is connected to the first support frame. The inclination angle of the second support frame is adapted to the curvature of the tunnel sidewall. The traveling mechanism includes a driving component and a limiting component. The driving component is located at the bottom of the first support frame and is used to drive the working trolley to move. The limiting component is located on the opposite side of the first support frame and the second support frame and is used to limit the lateral displacement of the working trolley.

2. The tunnel wall jumbo according to claim 1, characterized in that The drive assembly includes a drive element and a first traveling wheel. The output end of the drive element is connected to the first traveling wheel and is used to drive the first traveling wheel to rotate.

3. The tunnel wall jumbo according to claim 1, characterized in that, The limiting component includes an elastic support and a second traveling wheel. One end of the elastic support is connected to the first support frame and the second support frame respectively, and the other end is connected to the second traveling wheel respectively.

4. The tunnel wall jumbo according to claim 3, characterized in that, The elastic support includes a compression spring, a guide sleeve, and a slider. The compression spring is disposed inside the guide sleeve, and the guide sleeve has an axial groove. The slider can move within the groove, and one end of the slider is connected to the compression spring, while the other end extends to the outside of the guide sleeve and is connected to the second traveling wheel.

5. The tunnel wall jumbo according to claim 1, characterized in that, The support platform is equipped with a protective component, including a sleeve and a rod. The sleeve is fixedly connected to the support platform, and the rod is movably connected inside the sleeve.

6. The tunnel sidewall working trolley according to claim 1, characterized in that, The first support frame includes a frame body and support rods. The frame body is welded in an I-shape, and the support rods are staggered inside the frame body.

7. The tunnel wall jumbo according to claim 1, characterized in that, The second support frame includes at least one inclined support rod, the top end of which is connected to the edge of the support platform, and the bottom end is connected to the middle or lower part of the first support frame.

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