Movable platform for cleaning upper part of shield tunnel

Abstract

The utility model belongs to the field of tunnel interior cleaning equipment, and particularly relates to a movable platform for cleaning the upper portion of a shield tunnel, which comprises a support structure, a walking assembly and a cleaning platform, the support structure is composed of a supporting platform and vertical rods located at the four ends of the supporting platform, and the walking assembly comprises supporting legs and roller sets installed below the supporting legs. The top end of the supporting leg is connected to the bottom end of the vertical rod, a limiting shaft is installed at the connecting position between the supporting leg and the vertical rod, a support is installed on the supporting leg, a first hydraulic piston rod connected with the vertical rod is installed on the support, and a plurality of cleaning heads are installed on the cleaning platform. By means of the movable characteristic, lining segments in a shield tunnel can be cleaned comprehensively, repeated disassembly and assembly for movement are not needed, in addition, when the vertical rods and the supporting legs are connected, the allowable installation angle range between the vertical rods and the supporting legs is larger, and installation operation can be conveniently conducted in a limited space.

Description

Technical Field

[0001] The utility model belongs to the field of tunnel internal cleaning equipment, and particularly relates to a movable cleaning platform for the upper part of a shield tunnel. Background Technique

[0002] The shield technology is a construction method for excavating tunnels underground. It uses a shield machine to tunnel underground, while preventing the collapse of the soft foundation excavation surface or maintaining the stability of the excavation surface, and safely carrying out the excavation and lining operations of the tunnel inside the machine. It has been widely used in engineering fields such as urban underground rail transit, municipal utility tunnels, and municipal traffic tunnels.

[0003] Municipal road shield tunnels are usually constructed using large-diameter or extra-large-diameter shield machines. The horizontal transportation of materials such as lining segments, grouting materials, precast mouth-shaped components, and lane slabs in the tunnel usually relies on the precast mouth-shaped components assembled closely behind the shield machine trailer as a temporary road for transportation. After the shield machine has advanced a certain distance, the lane slabs on both sides of the precast mouth-shaped components are started to be assembled to widen the temporary transportation road. The precast mouth-shaped components are far from the top and side walls of the formed tunnel. When construction workers carry out construction operations within the arc-shaped space above the circular cross-section tunnel, a temporary platform needs to be erected.

[0004] Since the bottom of the tunnel is an arc surface, operation platforms of different heights need to be erected according to different operation heights. After the construction operations are completed, they need to be disassembled and re-erected in the next operation section. The disassembly and assembly are relatively cumbersome and there are certain safety risks. Therefore, a movable cleaning platform that can be erected once, is suitable for operations at different heights, and can be conveniently and quickly moved to the next operation area is needed.

[0005] The utility model designs a movable cleaning platform for the upper part of a shield tunnel to solve the above problems. Content of the Utility Model

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A movable cleaning platform for the upper part of a shield tunnel, which includes a support structure, a walking assembly, and a cleaning platform. The support structure is composed of a support platform and vertical rods located at the four ends of the support platform. The walking assembly includes support legs and a roller group installed below the support legs. The top end of the support leg is connected to the bottom end of the vertical rod, and a limiting shaft is installed at the connection between the support leg and the vertical rod. A bracket is installed on the support leg, and a first hydraulic piston rod connected to the vertical rod is installed on the bracket. A plurality of cleaning heads are installed on the cleaning platform.

[0008] As a preferred solution, the cleaning platform is composed of a plurality of arc-shaped platforms. Connecting rods are installed between adjacent arc-shaped platforms, and a plurality of second hydraulic piston rods connected to each arc-shaped platform are installed on the support platform.

[0009] As a preferred solution, the cleaning head is installed outside the arc-shaped platform, and the power of the cleaning head is provided by a motor inside the arc-shaped platform.

[0010] As a preferred solution, the radius of the arc-shaped platform is smaller than the radius of the lining segment in the shield tunnel.

[0011] As a preferred solution, the roller group includes a plurality of vertical rollers and U-shaped pins. The vertical rollers are installed at the bottom of the support legs. The vertical rollers are in contact with the platform in the tunnel, and the contact surfaces of the two are perpendicular.

[0012] As a preferred solution, the vertical rollers are provided with locking holes 17 adapted to the U-shaped pins, and the U-shaped pins can pass through the locking holes 17 to penetrate all the vertical rollers in the roller group.

[0013] As a preferred solution, a control cabinet is installed on the side of the support leg, and the power of the vertical rollers is provided by a motor inside the support leg.

[0014] Compared with the existing technology, the advantages of the present utility model are as follows:

[0015] 1. The present utility model realizes the connection and fixation between the vertical rod and the support leg with a limit shaft, a bracket, and a first hydraulic piston rod, making it have the characteristics of convenient disassembly and assembly. The bracket structure and the walking assembly can be assembled on-site inside the tunnel, and with the movable characteristics, it can comprehensively clean the lining segments in the shield tunnel without repeated disassembly and assembly for movement. In addition, when connecting the vertical rod and the support leg, the allowable installation angle range between the two is larger, and after connection, the first hydraulic piston rod fixes the vertical rod and the support leg to a specific angle, facilitating the installation operation in a limited space.

[0016] 2. The second hydraulic piston rod of the present utility model can control the cleaning height of the arc-shaped platform to meet various cleaning operation requirements. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the present utility model inside the tunnel.

[0018] Figure 2 is a schematic diagram of the present utility model.

[0019] Figure 3 is a side schematic diagram of the present utility model.

[0020] Names of the reference numerals in the figure: 1. Bracket structure; 2. Walking assembly; 3. Cleaning platform; 4. Support platform; 5. Vertical rod; 6. Support leg; 7. Roller group; 8. Limit shaft; 9. Bracket; 10. First hydraulic piston rod; 11. Cleaning head; 12. Arc-shaped platform; 13. Connecting rod; 14. Second hydraulic piston rod; 15. Vertical roller; 16. Control cabinet; 17. Locking hole. Detailed implementation manners

[0021] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments or drawings are used to illustrate the present utility model, but not to limit the scope of the present utility model.

[0022] A cleaning mobile platform for the upper part of a shield tunnel, as Figures 1 to 3 shown, includes a support structure 1, a traveling assembly 2, and a cleaning platform 3. The support structure 1 is composed of a support platform 4 and vertical rods 5 located at the four ends of the support platform 4. The traveling assembly 2 includes support legs 6 and a roller group 7 installed below the support legs 6. The top ends of the support legs 6 are connected to the bottom ends of the vertical rods 5, and a limiting shaft 8 is installed at the connection between the support legs 6 and the vertical rods 5. A bracket 9 is installed on the support legs 6, and a first hydraulic piston rod 10 connected to the vertical rod 5 is installed on the bracket 9. A plurality of cleaning heads 11 are installed on the cleaning platform 3.

[0023] The connection and fixation between the vertical rod 5 and the support leg 6 are realized by the limiting shaft 8, the bracket 9, and the first hydraulic piston rod 10, enabling it to have the characteristic of convenient disassembly and assembly. The support structure 1 and the traveling assembly 2 can be assembled on-site inside the tunnel, and with the movable characteristic, it can comprehensively clean the lining segments in the shield tunnel without repeated disassembly and assembly for movement. In addition, when connecting the vertical rod 5 and the support leg 6, the allowable installation angle range between the two is larger, and after connection, the first hydraulic piston rod 10 fixes the vertical rod 5 and the support leg 6 to a specific angle, facilitating the installation operation in a narrow space.

[0024] The materials used for the support structure are processed from section steel or steel pipes according to the available materials at the construction site.

[0025] The cleaning platform 3 is composed of a plurality of arc platforms 12, a connecting rod 13 is installed between adjacent arc platforms 12, and a plurality of second hydraulic piston rods 14 connected to each arc platform 12 are installed on the support platform 4.

[0026] The cleaning heads 11 are installed outside the arc platforms 12, and the cleaning heads 11 are powered by motors inside the arc platforms 12. The radius of the arc platforms 12 is smaller than the radius of the lining segments in the shield tunnel, and the arc platforms 12 are of steel plate or steel grid keel structure.

[0027] The second hydraulic piston rods 14 can control the cleaning height of the arc platforms 12 to meet various cleaning operation requirements. In addition, the unfolding and storage functions of the arc platforms 12 are realized through the second hydraulic piston rods 14, and the movable connecting rod 13 does not affect the movement of the arc platforms 12. After the arc platforms 12 are unfolded, they can provide efficient cleaning ability, and after the arc platforms 12 are stored, it is convenient for the disassembly and assembly work of the equipment.

[0028] The roller set 7 includes a plurality of vertical rollers 15 and U-shaped pins. The vertical rollers 15 are installed at the bottom of the support legs 6. The vertical rollers 15 are in contact with the platform in the tunnel, and the contact surfaces of the two are perpendicular.

[0029] The vertical rollers 15 are provided with locking holes 17 adapted to the U-shaped pins. The U-shaped pins can pass through all the vertical rollers 15 in the roller set 7 through the locking holes 17. A control cabinet 16 is installed on the side of the support leg 6. The vertical rollers 15 are powered by a motor inside the support leg 6.

[0030] After inserting the U-shaped pin to lock the vertical roller 15, the device can be in a forced locking state, improving the stability of the fixed device and preventing sliding during construction.

[0031] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention falls within the protection scope of the present invention.

Claims

1. A mobile platform for cleaning the upper part of a shield tunnel, characterized in that: The invention comprises a support structure (1), a walking assembly (2), and a cleaning platform (3), wherein the support structure (1) comprises a support platform (4) and upright poles (5) located at four ends of the support platform (4), the walking assembly (2) comprises a support leg (6) and a roller group (7) installed below the support leg (6), the top end of the support leg (6) is connected to the bottom end of the upright pole (5), and a limit axis (8) is installed at the connection between the support leg (6) and the upright pole (5), a support (9) is installed on the support leg (6), and a first hydraulic piston rod (10) connected to the upright pole (5) is installed on the support leg (6), and a plurality of cleaning heads (11) are installed on the cleaning platform (3).

2. A mobile platform for cleaning the upper part of a shield tunnel according to claim 1, characterized in that: The cleaning platform (3) is composed of a plurality of arc-shaped platforms (12), connecting rods (13) are installed between adjacent arc-shaped platforms (12), and a plurality of second hydraulic piston rods (14) connected to the arc-shaped platforms (12) are installed on the support platform (4).

3. A mobile platform for cleaning the upper part of a shield tunnel according to claim 2, characterized in that: The cleaning head (11) is installed outside the arc-shaped platform (12), and the cleaning head (11) is powered by a motor inside the arc-shaped platform (12).

4. A mobile platform for cleaning the upper part of a shield tunnel according to claim 2, characterized in that: The radius of the arc-shaped platform (12) is smaller than the radius of the lining segment in the shield tunnel.

5. The mobile platform for cleaning the upper part of a shield tunnel according to claim 1, characterized in that: The roller group (7) comprises a plurality of vertical rollers (15) and a U-shaped latch. The vertical rollers (15) are mounted at the bottom of the support legs (6). The vertical rollers (15) are in contact with the platform in the tunnel, and the contact surfaces of the two are perpendicular.

6. A mobile platform for cleaning the upper part of a shield tunnel according to claim 5, characterized in that: The vertical roller (15) is provided with a locking hole (17) adapted to the U-shaped latch, and the U-shaped latch can pass through all the vertical rollers (15) in the roller assembly (7) through the locking hole (17).

7. The mobile platform for cleaning the upper part of a shield tunnel according to claim 5, characterized in that: A control cabinet (16) is installed on the side of the support leg (6), and the vertical roller (15) is powered by a motor inside the support leg (6).

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