Working platform for railway single track tunnel operation

Abstract

The utility model belongs to the technical field of climbing operation in tunnels, and particularly relates to a working platform for railway single track tunnel operation. Comprising a walking foundation, a vertical frame and a cantilever structure. The walking foundation can walk on a track in a tunnel through walking wheels at the bottom; the vertical frame is installed on the walking foundation, a cable rope is connected between the vertical frame and the track, and the cantilever structure is installed on the vertical frame and stretches out towards the inner wall of the tunnel in a cantilever mode; the working platform for the railway single track tunnel operation can be prevented from being disassembled and assembled in a hole, is convenient to move, does not need to be disassembled when the operation position is replaced, and is suitable for multi-point small-area lining surface treatment, embedded part adjustment and other work. The construction dead angle at the haunch can be attached to the working face through the cantilever structure, the construction difficulty is lowered, and the construction safety is enhanced. By means of the working platform, 70% of working time can be shortened, manpower needed for assembling and disassembling the scaffold is saved, and at least three work classes are saved for each working point.

Description

Technical Field

[0001] The utility model belongs to the technical field of climbing operations in tunnels, and in particular relates to a working platform for railway single-line tunnel operations. Background Art

[0002] After the track laying of the railway tunnel is completed, there is still a lot of work to be done, and scaffolding work platforms need to be set up. The current clearance structures in the tunnel are all arc-shaped. After the various types of scaffolding are spliced, there are dead corners in the working range, mainly where the cross-section arc changes greatly. During construction, it is often necessary to move the work platform frequently. The scaffolding platform structure currently used is large in size and needs to be repeatedly disassembled and transported when moved. The working space in the tunnel after track laying is limited, and the foundation of the scaffolding platform cannot be placed on a flat and solid foundation, which also brings certain safety hazards to the construction. Utility Model Content

[0003] The utility model aims to solve the problems that the scaffolding needs to be repeatedly erected and dismantled during construction in the tunnel, and most of the working positions have no stable foundation and the scaffolding cannot be fixed.

[0004] The utility model provides the following technical solution: a working platform for railway single-track tunnel operations, comprising a walking foundation, a frame and a cantilever structure; the walking foundation can walk on a track in the tunnel through walking wheels at the bottom; the frame is installed on the walking foundation, a cable wind rope is connected between the frame and the track, and the cantilever structure is installed on the frame and cantilevers out toward the inner wall of the tunnel.

[0005] Furthermore, the frame includes four steel tube columns, and transverse supports are welded between two steel tube columns to form a gantry. The four steel tube columns and a number of transverse supports constitute two gantries; the two gantries are erected on the walking basis through the steel tube columns, and the steel tube columns of the two gantries are connected with diagonal rods that cross in an "X" shape. The transverse supports on the two gantries are at the same height, and a working platform is overlapped between the transverse supports of the two gantries; a ladder is provided along one of the steel tube columns on the gantry, and the ladders on the two gantries are staggered.

[0006] Furthermore, the top surface of the walking foundation is fixed with plug rods corresponding to the steel pipe columns one by one, and the door frame is erected on the walking foundation by plugging the steel pipe columns and the plug rods.

[0007] Furthermore, a sleeve is fixed on the steel pipe column of the frame, and the height of the sleeve is flush with the lateral support. A plug is fixed on the cantilever structure, and the cantilever structure is suspended on the frame by inserting the plug into the sleeve; each cantilever structure is connected to at least four sleeves evenly arranged on two steel pipe columns.

[0008] Furthermore, the cantilever structure includes two triangular brackets and a plurality of cantilever work platforms, the first straight sides of the two triangular brackets are respectively connected to the steel pipe columns of the two door frames, and the plurality of cantilever work platforms are overlapped between the second straight sides of the two triangular brackets.

[0009] Furthermore, the arrangement spacing of the lateral supports on the portal frame is less than 1.5m.

[0010] Furthermore, it also includes a top working platform, which is overlapped between two adjacent frames, and the vertical poles at the four corners of the top working platform are inserted into the steel pipe columns of the adjacent frames.

[0011] Furthermore, both ends of the diagonal tie rod are connected to the steel pipe columns by bolts.

[0012] Furthermore, the working platform is buckled on the lateral support of the door frame through hooks on both sides.

[0013] Furthermore, the travelling basis is a standard rail vehicle with motor drive and braking measures.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The utility model provides a working platform for railway single-track tunnel operations, which can avoid disassembly and assembly in the tunnel, is easy to move, and does not need to be disassembled when changing the working position. It is suitable for multi-point small-area lining surface treatment and embedded parts adjustment. The construction dead corner at the arch waist can be close to the working surface using a cantilever structure, which reduces the construction difficulty and enhances the construction safety. The use of this working platform can reduce the working time by 70%, save the manpower required for the installation and removal of scaffolding, and save at least 3 work shifts at each operation point. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a working platform for railway single-track tunnel operations within a tunnel section;

[0017] Figure 2 A schematic diagram of the working platform for railway single-track tunnel operations in the tunnel length direction;

[0018] Figure 3 A schematic diagram of the basics of walking;

[0019] Figure 4 This is a schematic diagram of the connection between the working platform and the lateral support;

[0020] Figure 5 This is a schematic diagram of the connection between the cantilever structure and the vertical frame;

[0021] Figure 6 Schematic diagram of the connection between the cantilever work platform and the triangular bracket.

[0022] In the figure: 1- walking foundation; 2- guy rope; 3- steel pipe column; 4- horizontal support; 5- inclined rod; 6- working platform; 7- ladder; 8- plug rod; 9- casing; 10- plug; 11- triangular bracket; 12- cantilevered working platform; 13- top working platform. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] like Figure 1 , Figure 2 As shown: A working platform for railway single-track tunnel operations, including a walking foundation 1, a frame and a cantilever structure; the walking foundation 1 is a standard rail vehicle with motor drive and braking measures. The walking foundation 1 can travel on the track in the tunnel through the walking wheels at the bottom; the frame is installed on the walking foundation 1, and a cable wind rope 2 is connected between the frame and the track to prevent the working platform from shaking. The cantilever structure is installed on the frame and cantilevers out to the inner wall of the tunnel. The working platform can travel on a standard track, avoiding repeated installation and transportation, and greatly reducing the construction time. The cantilever structure can be set according to the curvature change of the tunnel body to overcome the problem of blind spots in operation.

[0025] The main structure of the working platform is made of steel pipes, which ensures the rigidity and bearing capacity of the frame while making the working platform lightweight. The frame includes four steel pipe columns 3. The length of the steel pipe columns 3 is cut according to the clear height of the tunnel. The transverse supports 4 are welded between two steel pipe columns 3 to form a portal frame. The arrangement spacing of the transverse supports 4 on the portal frame is less than 1.5m. Four steel pipe columns 3 and several transverse supports 4 constitute two portal frames; the two portal frames are erected on the walking foundation 1 through the steel pipe columns 3, and the steel pipe columns 3 of the two portal frames are connected with the inclined rods 5 in an "X" shape. The two ends of the inclined rods 5 are connected to the steel pipe columns 3 by bolts. The inclined rods 5 are added to ensure the stability and safety of the structure. The heights of the transverse supports 4 on the two portal frames are flush, and the working platform 6 is overlapped between the transverse supports 4 of the two portal frames; a ladder 7 is set along one of the steel pipe columns 3 on the portal frame, and the ladders 7 on the two portal frames are staggered.

[0026] The working platform 6 is buckled on the lateral support 4 of the door frame through hooks on both sides. The lateral support 4 provides vertical support force for the working platform 6. The working platform 6 applies tension to the lateral support 4 through hooks on both sides, so that the two door frames support each other as a whole.

[0027] like Figure 3As shown: the top surface of the walking foundation 1 is fixed with an insertion rod 8 corresponding to the steel pipe column 3, and the door frame is erected on the walking foundation 1 through the steel pipe column 3 and the insertion rod 8.

[0028] like Figure 5 As shown in the figure: a sleeve 9 is fixed on the steel pipe column 3 of the stand, and the height of the sleeve 9 is flush with the horizontal support 4. A plug 10 is fixed on the cantilever structure, and the cantilever structure is suspended on the stand by inserting the plug 10 into the sleeve 9; each cantilever structure is connected to at least four sleeves 9 evenly arranged on two steel pipe columns 3. The cantilever structure is plugged into the sleeve 9 on the column 3 through the plug 10, which is convenient for disassembly and adjustment of the cantilever structure.

[0029] like Figure 6 As shown: the cantilever structure includes two triangular brackets 11 and a plurality of cantilever work platforms 12. The first straight sides of the two triangular brackets 11 are respectively connected to the steel pipe columns 3 of the two door frames, and the plurality of cantilever work platforms 12 are overlapped between the second straight sides of the two triangular brackets 11. The connection method of the cantilever work platform 12 and the triangular bracket 11 is the same as the connection method of the work platform 6 and the lateral support 4.

[0030] The working platform is assembled on the track at the tunnel entrance when in use. As the working platform is light, it can be directly pushed into the tunnel by manpower to carry out operations. It can avoid disassembly and assembly in the tunnel, and is easy to move. There is no need to disassemble the working platform when changing the working position.

[0031] The working platform is mainly used for handling and detecting various small-scale defects after track laying in the tunnel. The main body is made of steel pipes, with a light structure and convenient use. When it needs to be moved, it can be driven by manpower or electricity, moved along the laid track, and reach the designated position on the working platform through the ladder 7 to start construction work.

[0032] It also includes a top working platform 13, which is overlapped between two adjacent frames. The vertical poles at the four corners of the top working platform 13 are inserted into the steel pipe columns 3 of the adjacent frames. Standing on the top working platform 13, operations can be carried out on the top of the tunnel body.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A working platform for railway single-track tunnel operations, characterized in that: It includes a walking foundation (1), a frame and a cantilever structure; The walking base (1) can walk on the track in the tunnel through the walking wheels at the bottom; the vertical frame is installed on the walking base (1), the vertical frame and the track are connected by a cable wind rope (2), and the cantilever structure is installed on the vertical frame and cantilevers out toward the inner wall of the tunnel.

2. A working platform for railway single-track tunnel operations according to claim 1, characterized in that: The frame comprises four steel pipe columns (3), a transverse support (4) is welded between two steel pipe columns (3) to form a portal frame, and the four steel pipe columns (3) and a plurality of transverse supports (4) constitute two portal frames; the two portal frames are erected on the walking foundation (1) through the steel pipe columns (3), an inclined rod (5) in an "X" shape is connected between the steel pipe columns (3) of the two portal frames, the transverse supports (4) on the two portal frames are at the same height, and a working platform (6) is overlapped between the transverse supports (4) of the two portal frames; a ladder (7) is arranged along one of the steel pipe columns (3) on the portal frame, and the ladders (7) on the two portal frames are staggered.

3. A working platform for railway single-track tunnel operations according to claim 2, characterized in that: The top surface of the walking foundation (1) is fixed with insertion rods (8) corresponding one to one with the steel pipe columns (3), and the door frame is erected on the walking foundation (1) by inserting the steel pipe columns (3) and the insertion rods (8).

4. A working platform for railway single-track tunnel operations according to claim 2 or 3, characterized in that: A sleeve (9) is fixed on the steel pipe column (3) of the stand, and the height of the sleeve (9) is flush with the lateral support (4). A plug (10) is fixed on the cantilever structure, and the cantilever structure is suspended on the stand by inserting the plug (10) into the sleeve (9); each cantilever structure is connected to at least four sleeves (9) evenly arranged on two steel pipe columns (3).

5. A working platform for railway single-track tunnel operations according to claim 4, characterized in that: The cantilever structure comprises two triangular brackets (11) and a plurality of cantilever work platforms (12), wherein the first straight sides of the two triangular brackets (11) are respectively connected to the steel pipe columns (3) of the two door frames, and the plurality of cantilever work platforms (12) are overlapped between the second straight sides of the two triangular brackets (11).

6. A working platform for railway single-track tunnel operations according to claim 2, characterized in that: The arrangement spacing of the transverse supports (4) on the portal frame is less than 1.5m.

7. The working platform for railway single-track tunnel operation according to claim 2, characterized in that: It also includes a top working platform (13), which is overlapped between two adjacent vertical frames, and the vertical poles at the four corners of the top working platform (13) are inserted into the steel pipe columns (3) of the adjacent vertical frames.

8. The working platform for railway single-track tunnel operation according to claim 2, characterized in that: The two ends of the inclined tie rod (5) are connected to the steel pipe column (3) by bolts.

9. The working platform for railway single-track tunnel operation according to claim 2, characterized in that: The working platform (6) is buckled onto the lateral support (4) of the door frame through hooks on both sides.

10. The working platform for railway single-track tunnel operation according to claim 1, characterized in that: The walking base (1) is a standard rail vehicle with motor drive and braking measures.

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