A shield-type high-altitude work platform

Abstract

This utility model relates to the field of tunnel boring machine (TBM) construction technology, and in particular to a high-altitude working platform for the TBM shield, including the TBM shield body and a construction platform. A working frame is erected above the TBM shield body. The working frame is arc-shaped and adapted to the TBM shield body. The bottom ends of the working frame abut against the construction platform. The working frame includes a handrail frame, a step frame, and quick-release step bars. The handrail frame is located on the upper side of the step frame, and a support rod is provided between the handrail frame and the step frame. The support rod abuts against the TBM shield body. At least two sets of step frames are provided, and multiple sets of quick-release step bars are provided between the step frames. This utility model provides a sliding arc-shaped working frame on the TBM shield body, facilitating quick ascent for construction personnel to perform shield body processing on the working frame. The operation is convenient, and the quick-release step bars on the working frame can be disassembled and adjusted according to construction needs, increasing operating space and improving the convenience of shield body construction operations.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine construction technology, and in particular to a high-altitude working platform for the tunnel body. Background Technology

[0002] Before the shield construction of the tunnel boring machine (TBM), it is necessary to complete the welding and processing of the front shield, middle shield, and tail shield, as well as key steps such as overall shield deformation control and sealing device installation. In the existing technology, construction workers are suspended onto the TBM shield by a crane or scaffolding is erected above the TBM shield to weld or assemble the shield. The operating space is limited, construction is inconvenient, and construction efficiency and operation are affected. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a shield-type high-altitude operation platform.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A shield-body high-altitude working platform includes a shield body of a tunnel boring machine (TBM) and a construction platform. A working frame is erected above the shield body of the TBM. The working frame is arc-shaped and adapted to the shield body of the TBM. The bottom ends of the working frame abut against the construction platform. The working frame includes a handrail frame, a step frame, and quick-release step bars. The handrail frame is located on the upper side of the step frame. A support rod is provided between the handrail frame and the step frame. The support rod abuts against the shield body of the TBM. There are at least two sets of step frames, and multiple sets of quick-release step bars are provided between the step frames.

[0006] Preferably, the construction platform and the shield of the tunnel boring machine are set in the soil, and a support for the construction platform is embedded in the soil.

[0007] Preferably, the bottom of the work frame is provided with a lifting structure and pulleys, the lifting structure is disposed between the work frame and the pulleys, and the pulleys abut against the upper surface of the work platform.

[0008] Preferably, the surface of the working frame is coated with anti-rust paint, and the handrail frame, footboard frame and support rod are all welded from steel pipes; an insulating anti-slip sleeve is provided between the support rod and the shield body of the tunnel boring machine, and anti-slip feet are provided at the bottom of the handrail frame and footboard frame.

[0009] Preferably, the quick-release pedal is detachably connected to the pedal frame by bolts, and the quick-release pedal has threaded holes at both ends corresponding to the bolts. Multiple sets of quick-release pedals are parallel to each other and are evenly arranged on the pedal frame.

[0010] Preferably, the quick-release pedal is provided with arc-shaped load-bearing sleeves at both ends, the pedal frame is provided with positioning sleeves adapted to the arc-shaped load-bearing sleeves, and a friction damping structure is provided between the arc-shaped load-bearing sleeves and the positioning sleeves.

[0011] The beneficial effects of this utility model are as follows:

[0012] Compared with the existing technology, this utility model sets a sliding arc-shaped working frame on the shield body of the tunnel boring machine, which makes it convenient for construction personnel to quickly climb to a higher position and carry out shield body processing on the working frame. The operation is convenient. At the same time, the working frame is equipped with quick-release step bars, which can be disassembled and adjusted according to construction needs, increasing the operating space and improving the convenience of shield body construction operations. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a shield-body high-altitude operation platform under construction conditions proposed in this utility model.

[0014] Figure 2 This is a front view structural diagram of a shield-body high-altitude operation platform proposed in this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the working frame of a shield-body high-altitude working platform proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the quick-release step bar installation structure of a shield-body high-altitude operation platform proposed in this utility model.

[0017] In the diagram: 1. Shield body of the tunnel boring machine; 2. Soil; 3. Construction platform; 4. Work frame; 41. Handrail; 42. Step frame; 421. Positioning sleeve; 43. Quick-release step; 431. Arc-shaped load-bearing sleeve; 432. Threaded hole; 44. Lifting structure; 45. Pulley; 46. Support rod. Detailed Implementation

[0018] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Reference Figure 1-4A shield body high-altitude operation platform includes a shield body 1 of a tunnel boring machine and a construction platform 3. The construction platform 3 and the shield body 1 of the tunnel boring machine are set in a construction pit 2 in the soil. The side wall of the pit 2 is embedded with a bracket to support the construction platform 3, so that personnel and equipment can be placed on the construction platform 3 for the assembly and maintenance of the tunnel boring machine. A work frame 4 is erected above the shield body 1 of the tunnel boring machine, so that construction personnel can climb up to work and weld the shield body. The work frame 4 is arc-shaped and adapted to the shield body 1 of the tunnel boring machine, fitting the side curved surface of the shield body 1 of the tunnel boring machine.

[0020] The bottom ends of the work frame 4 abut against the construction platform 3, providing stable support for the work frame 4. The bottom of the work frame 4 is equipped with a lifting structure 44 and pulleys 45. The lifting structure 44 is located between the work frame 4 and the pulleys 45. The pulleys 45 abut against the upper surface of the construction platform 3. The lifting structure 44 adopts a hydraulic telescopic rod or screw structure to change the distance between the pulleys 45 and the work frame 4, and to lift or lower the work frame 4. After lifting the work frame 4, the work frame 4 can be moved quickly through the pulleys 45. After lowering the work frame 4, the pulleys 45 retract, and the bottom support legs of the work frame 4 directly abut against the construction platform 3, providing stable support for the work frame 4.

[0021] The work frame 4 includes a handrail frame 41, a footrest frame 42 and a quick-release footrest 43. The surface of the work frame 4 is coated with anti-rust paint.

[0022] Handrail 41 is installed on the upper side of step frame 42. A support rod 46 is provided between handrail 41 and step frame 42 to connect them and improve the overall strength. Handrail 41, step frame 42 and support rod 46 are all made of welded steel pipe. The bottom of handrail 41 and step frame 42 is provided with anti-slip feet to ensure stable support. Support rod 46 abuts against the shield body 1 of the tunnel boring machine. An insulating anti-slip sleeve is provided between support rod 46 and shield body 1 of the tunnel boring machine to achieve insulation and anti-slip.

[0023] At least two sets of step-bar frames 42 are provided as the main frame for erecting the work frame 4. Single or multiple rows of work frames 4 are selected according to the construction project and assembled together to improve the overall connection reliability. Multiple sets of quick-release step bars 43 are provided between the step-bar frames 42 to facilitate construction personnel to step on and climb to high places for high-altitude construction operations. The quick-release step bars 43 are detachably connected to the step-bar frames 42 by bolts. The quick-release step bars 43 have threaded holes 432 corresponding to the bolts at both ends. Multiple through holes corresponding to the bolts are evenly opened on the step-bar frames 42. The spacing and number of quick-release step bars 43 can be adjusted according to the actual size and operation requirements. The quick-release step bars 43 can be removed at the parts that need to be operated to increase the operating space. The multiple sets of quick-release step bars 43 are parallel to each other and evenly arranged on the step-bar frames 42 to improve the overall strength of the work frame 4.

[0024] The quick-release pedal 43 has arc-shaped load-bearing sleeves 431 welded to both ends. The arc-shaped load-bearing sleeves 431 are semi-cylindrical in the shape of a tile. The pedal frame 42 is provided with a positioning sleeve 421 that is adapted to the arc-shaped load-bearing sleeves 431. The arc-shaped load-bearing sleeves 431 are set on the upper side of the positioning sleeves 421 to bear the weight of the quick-release pedal 43. A friction damping structure is provided between the arc-shaped load-bearing sleeves 431 and the positioning sleeves 421. The contact surfaces of the arc-shaped load-bearing sleeves 431 and the positioning sleeves 421 are provided with concave and convex anti-slip textures, or an anti-slip pad is placed between the arc-shaped load-bearing sleeves 431 and the positioning sleeves 421 as a friction damping structure to increase the rotational resistance between the arc-shaped load-bearing sleeves 431 and the positioning sleeves 421 and limit the rotation of the quick-release pedal 43.

[0025] In this embodiment, construction workers use a crane to lift the work frame 4 to the upper side of the shield body 1 of the tunnel boring machine and place it on the construction platform 3. Depending on the construction location and work items, the quick-release step bar 43 is adjusted to create an operating space, making it convenient for construction workers to climb to a height to perform welding or other operations, process, weld or assemble the surface of the shield body 1 of the tunnel boring machine. When it is necessary to temporarily adjust the position, the lifting structure 44 is controlled to raise the work frame 4, the pulley 45 abuts against the construction platform 3, and the anti-slip support feet disengage from the construction platform 3, making it convenient for construction workers to push the work frame 4. After adjusting it to a suitable position, the lifting structure 44 is lowered as needed.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A shield tunneling machine high-altitude operation platform, comprising a shield body (1) and a construction platform (3), characterized in that, The shield body (1) of the tunnel boring machine is equipped with a working frame (4). The working frame (4) is arc-shaped and adapted to the shield body (1) of the tunnel boring machine. The bottom ends of the working frame (4) abut against the construction platform (3). The working frame (4) includes a handrail frame (41), a step frame (42) and a quick-release step (43). The handrail (41) is set on the upper side of the step frame (42). A support rod (46) is provided between the handrail (41) and the step frame (42). The support rod (46) abuts against the shield body (1) of the tunnel boring machine. The step frame (42) is provided with at least two sets. Multiple sets of quick-release step rods (43) are provided between the step frames (42).

2. The platform of claim 1 wherein, The construction platform (3) and the shield body (1) of the tunnel boring machine are set in the soil (2), and the soil (2) is embedded with a support for the construction platform (3).

3. A platform at height according to claim 2, characterized in that, The bottom of the work frame (4) is provided with a lifting structure (44) and a pulley (45). The lifting structure (44) is located between the work frame (4) and the pulley (45). The pulley (45) abuts against the upper surface of the work platform (3).

4. The shield-body high-altitude operation platform according to claim 1, characterized in that, The surface of the work frame (4) is coated with anti-rust paint, and the handrail frame (41), step frame (42) and support rod (46) are all made of steel pipe welded together; An insulating anti-slip sleeve is provided between the support rod (46) and the shield body (1) of the tunnel boring machine, and anti-slip feet are provided at the bottom of the handrail frame (41) and the step frame (42).

5. The platform of claim 1 wherein, The quick-release pedal (43) is detachably connected to the pedal frame (42) by bolts. The quick-release pedal (43) has threaded holes (432) at both ends corresponding to the bolts. Multiple sets of quick-release pedals (43) are parallel to each other and are evenly arranged on the pedal frame (42).

6. A platform at height according to claim 5, characterized in that, The quick-release pedal (43) has arc-shaped load-bearing sleeves (431) at both ends, and the pedal frame (42) has a positioning sleeve (421) adapted to the arc-shaped load-bearing sleeve (431). A friction damping structure is provided between the arc-shaped load-bearing sleeve (431) and the positioning sleeve (421).

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