Simple mobile operation platform for tunnel top construction

Abstract

The utility model discloses a simple mobile operation platform for tunnel top construction, which comprises a fixed framework and a lifting framework, the lifting framework is positioned above the fixed framework, a walking device is arranged at the bottom of the fixed framework, a lifting device is fixed on the fixed framework and is connected with the lifting framework, and the walking device is connected with the lifting framework. The lifting device drives the lifting framework to do lifting motion, a working platform with a guardrail is erected on the fixed framework and the lifting framework, a plurality of guide sleeves are arranged on the fixed framework, a plurality of guide stand columns are arranged on the lifting framework, the guide sleeves correspond to the guide stand columns one to one, and limiting holes are formed in the guide stand columns and the guide sleeves. The guiding stand columns are connected with the guiding sleeves in an inserted mode and limited through bolts, telescopic foot supports with adjusting pieces are fixed to the upper edge of the fixing framework at intervals, and the adjusting pieces adjust the lengths of the telescopic foot supports. Compared with the prior art, the utility model has the advantages that the requirement on the ground flatness is not high, and the stability and the safety are better in the use process.

Description

Technical Field

[0001] The utility model belongs to the field of tunnel construction, and in particular relates to a simple mobile working platform for tunnel top construction. Background Art

[0002] The current tunnel engineering construction, such as grinding, repairing and spraying fire retardant coatings, requires the use of work platforms for operation, especially when spraying fire retardant coatings, the work platform needs to be moved frequently. The existing practice is to use finished lifting platforms (boom lifting platforms, scissor lifts, etc.) to lift workers to the designated location for operation. This practice has high requirements for the flatness of the ground and the operating space of the workers is relatively limited; the second is to use steel pipes to set up scaffolding on site, and the workers climb up the scaffolding to work. The scaffolding of this practice has poor safety and stability, is inconvenient to move, and has a fixed lifting height, which is not very flexible to use.

[0003] In response to the above problems, patent document CN220849678U discloses a work platform for tunnel arch construction, which discloses that the fixed seat is lifted and lowered by a lifting mechanism, thereby driving the work platform on the fixed seat to lift and lower, so that users can perform construction work on the top of the tunnel arch as needed, and the work platform space is relatively wide; in addition, moving wheels are arranged at the bottom of the box body, so that users can move the box body according to different needs. However, there are some problems with this solution in actual use: although the support plate moves downward to contact the ground surface, which can improve the stability of the work platform to a certain extent, the supporting force of the support plate is mainly concentrated at the bottom of the box body, lacking resistance to lateral forces, and the overall stability needs to be further improved, and it is not compatible with the flatness of the ground surface; there is a lack of limiting measures for lifting, and when the lifting mechanism fails, the work platform will slide down, posing a major safety hazard. Utility Model Content

[0004] The utility model aims to overcome the problems of stability and safety of existing tunnel work platforms and to provide a simple mobile work platform for tunnel top construction which has low requirements on ground flatness and good stability and safety.

[0005] The technical solution adopted by the present utility model to solve its technical problems: A simple mobile working platform for tunnel roof construction, including a fixed framework and a lifting framework. The lifting framework is located above the fixed framework. A traveling device is provided at the bottom of the fixed framework. A lifting device is fixed on the fixed framework. The lifting device is connected to the lifting framework and drives the lifting framework to move up and down. A working platform with guardrails is erected on the fixed framework and the lifting framework. A plurality of guiding sleeves are provided on the fixed framework, and a plurality of guiding columns are provided on the lifting framework. The guiding sleeves and the guiding columns correspond one by one. Limiting holes are provided on the guiding columns and the guiding sleeves. The guiding columns are inserted and connected with the guiding sleeves and are limited by pins. Telescopic foot supports with adjusting members are fixedly arranged at intervals along the edge of the fixed framework obliquely towards the ground surface. The adjusting members adjust the length of the telescopic foot supports.

[0006] Optionally, the fixed framework and the lifting framework are mainly constructed by horizontal steel pipes, vertical steel pipes and diagonal steel pipes through fasteners. The vertical steel pipes of the fixed framework are guiding sleeves, and the vertical steel pipes of the lifting framework are guiding columns.

[0007] Optionally, the telescopic foot support is mainly composed of an adjusting pipe and a supporting rod. The adjusting pipe is threadedly sleeved with the supporting rod. The adjusting member is an adjusting handle, and the adjusting member is fixed in the middle and lower section of the supporting rod.

[0008] Optionally, the lifting device is an electric push rod.

[0009] Optionally, the working platforms on the fixed framework and the lifting framework are distributed in a "pin" shape.

[0010] Optionally, the traveling device is a mobile wheel, which is symmetrically distributed front and back at the bottom of the fixed framework.

[0011] The usage method and principle of the present utility model: When in use, first, the product is manually moved to a designated position in the tunnel through the traveling device. The length of the telescopic foot support is adjusted by the adjusting member to make the telescopic foot support contact the ground surface. The fixed framework is stably supported by the telescopic foot support through multi-point oblique support. Then, according to the operation requirements, the height of the lifting framework is adjusted by the lifting device, so that the working platform on the lifting framework reaches the designated position. Finally, the pin is inserted into the limiting holes of the guiding column and the guiding sleeve to position the working platform on the lifting framework, preventing the working platform on the lifting framework from sliding down due to the failure of the lifting device. In addition, the guiding column and the guiding sleeve are limited by the pin, so that the fixed framework can stably support the lifting framework, thereby making the working platform of the lifting framework obtain stability. After the above work is done, the operators can climb onto the working platforms on the fixed framework and the lifting framework to perform operations.

[0012] Compared with the prior art, the present utility model has at least the following beneficial effects: The present utility model has a relatively low requirement for ground flatness, and has good stability and safety during use. Description of the Drawings

[0013] Figure 1 This is the front view structural schematic diagram of the present utility model;

[0014] The reference numerals in the drawings are as follows: fixed skeleton 1, lifting skeleton 2, traveling device 3, lifting device 4, working platform 5, guiding sleeve 6, guiding column 7, limiting hole 8, telescopic foot support 9. Detailed Description of the Preferred Embodiment

[0015] Embodiment 1, hereinafter in conjunction with Figure 1 The present utility model will be further described. A simple mobile working platform for tunnel roof construction includes a fixed skeleton 1 and a lifting skeleton 2. The fixed skeleton and the lifting skeleton are cuboids, and the lifting skeleton is located above the fixed skeleton. The bottom of the fixed skeleton is provided with a traveling device 3, and the traveling device is a moving wheel, symmetrically distributed front and back at the bottom of the fixed skeleton. A lifting device 4 is fixed on the fixed skeleton, and the lifting device is an electric push rod. The main body of the electric push rod is installed in the middle and lower part of the fixed skeleton through fixing parts such as brackets and bolts. The push rod of the electric push rod is connected to the bottom of the lifting skeleton through fixing parts such as brackets and bolts. The lifting device drives the lifting skeleton to make a lifting movement. A working platform 5 with guardrails is arranged on the fixed skeleton and the lifting skeleton. A plurality of guiding sleeves 6 are vertically fixed on the fixed skeleton, and a plurality of guiding columns 7 are vertically fixed on the lifting skeleton. The guiding sleeves and the guiding columns correspond one by one. Limiting holes 8 are provided on the guiding columns and the guiding sleeves. The guiding columns are inserted into the guiding sleeves and are limited by pins. Telescopic foot supports 9 with adjusting parts are fixed at intervals along the edge of the fixed skeleton obliquely towards the ground. The telescopic foot support is mainly composed of an adjusting tube and a support rod. The adjusting tube is threadedly sleeved with the support rod. The adjusting part is an adjusting handle, and the adjusting part is fixed in the middle and lower section of the support rod. The adjusting part adjusts the length of the telescopic foot support.

[0016] In order to achieve modular assembly and improve the overall stability, the fixed skeleton and the lifting skeleton are mainly constructed by horizontal steel pipes, vertical steel pipes and diagonal steel pipes through fasteners. The vertical steel pipes of the fixed skeleton are guiding sleeves, and the vertical steel pipes of the lifting skeleton are guiding columns.

[0017] In order to facilitate operation, the working platforms on the fixed skeleton and the lifting skeleton are distributed in a "pin" shape.

[0018] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A simple mobile work platform for tunnel top construction, comprising a fixed frame (1) and a lifting frame (2), wherein the lifting frame is located above the fixed frame, a walking device (3) is provided at the bottom of the fixed frame, a lifting device (4) is fixed on the fixed frame, the lifting device is connected to the lifting frame, and the lifting device drives the lifting frame to perform lifting motion, characterized in that: An operation platform (5) with guardrails is arranged on the fixed framework and the lifting framework. A plurality of guide sleeves (6) are arranged on the fixed framework, and a plurality of guide columns (7) are arranged on the lifting framework. The guide sleeves and the guide columns correspond one by one. Limit holes (8) are arranged on the guide columns and the guide sleeves. The guide columns are inserted and connected with the guide sleeves and limited by pins. Telescopic foot supports (9) with adjusting parts are fixedly arranged at intervals along the edge of the fixed framework and incline obliquely towards the ground. The adjusting parts adjust the length of the telescopic foot supports.

2. A simple mobile working platform for tunnel top construction according to claim 1, characterized in that: The fixed framework and the lifting framework are mainly constructed by horizontal steel pipes, vertical steel pipes and inclined steel pipes through fasteners. The vertical steel pipes of the fixed framework are guide sleeves, and the vertical steel pipes of the lifting framework are guide columns.

3. A simple mobile working platform for tunnel top construction according to claim 1, characterized in that: The telescopic foot support is mainly composed of an adjusting pipe and a support rod. The adjusting pipe is threadedly sleeved with the support rod. The adjusting part is an adjusting handle, and the adjusting part is fixed in the middle and lower section of the support rod.

4. A simple mobile working platform for tunnel top construction according to claim 1, characterized in that: The lifting device is an electric push rod.

5. The simple mobile working platform for tunnel top construction according to claim 1 is characterized by: The operation platforms on the fixed framework and the lifting framework are distributed in a "pin" shape.

6. A simple mobile working platform for tunnel top construction according to claim 1, characterized in that: The traveling device is a moving wheel, which is symmetrically distributed at the front and back of the bottom of the fixed framework.

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