Foldable walkway plate for tunnel

Abstract

The utility model discloses a tunnel foldable walkway plate, and relates to the technical field of shield tunneling machine corollary equipment, the tunnel foldable walkway plate comprises a main body plate and an extension plate, at least part of the main body plate is used for being arranged between a rear corollary trolley and a tunnel wall, and the main body plate is used for being connected with the rear corollary trolley; the extension plate is hinged to the main body plate, the included angle between a hinge shaft of the extension plate and the main body plate and the length direction of the rear matched trolley is smaller than 10 degrees, the extension plate has two states, one state is a folded state, the other state is an unfolded state, and the included angle between the extension plate in the folded state and the main body plate is smaller than 90 degrees; and the included angle between the extension plate in the unfolded state and the main body plate is greater than 90 degrees. The extension plate has the folded state and the unfolded state, the extension plate in the unfolded state can shield the gap between the main body plate and the tunnel wall, then the safety is improved, the extension plate in the folded state can reduce the size of the walkway plate in the width direction, and then the trafficability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shield machine supporting equipment, in particular to a tunnel foldable walkway board. BACKGROUND

[0002] Shield method is a full mechanization construction method in the construction of the excavation method, it is shield machine in the ground and advances, through shield shell and segment support all around rock prevent the collapse that happens to tunnel and excavate soil body in front with cutting device, through the earth removal machinery and go out of the hole, rely on the jack in the rear part and pressurize and advance, and assemble prefabricated concrete segment, form the mechanized construction method of tunnel structure,

[0003] In the process of shield tunnel construction, shield tunnel walkway board structure is often used, and the existing walkway board usually has only one unfolded state, in some schemes, in order to keep the walkability of the walkway board in the tunnel, a large enough gap between the outermost edge of the walkway board and the tunnel wall is needed to cope with the uneven part of the tunnel wall, however, the large gap is not conducive to the walking of the workers on the walkway board, and the safety is low. SUMMARY

[0004] The utility model discloses a tunnel foldable walkway board to solve the above-mentioned prior art problems, high safety, good passability.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] The utility model provides a tunnel foldable walkway board, include: main body board and outer extension board, at least part main body board is used to set up between rear supporting trolley and tunnel wall, main body board is used for and rear supporting trolley connects, outer extension board and main body board articulate, the included angle between the articulation shaft of outer extension board and main body board and rear supporting trolley length direction is less than 10, outer extension board has two states, one is folding state, one is unfolded state, the included angle between outer extension board and main body board under folding state is less than 90 degrees, the included angle between outer extension board and main body board under unfolded state is greater than 90 degrees.

[0007] In some embodiments, the main body board and the outer extension board are both rectangular plates, one long side of the main body board is connected with the rear supporting trolley, and one long side of the outer extension board is articulated with the other long side of the main body board.

[0008] In some embodiments, the articulation shaft is parallel to the length direction of the main body board, and the length direction of the main body board is parallel to the length direction of the rear supporting trolley.

[0009] In some embodiments, the width of the main plate is greater than the width of the epitaxial plate.

[0010] In some embodiments, the epitaxial plate is provided with several.

[0011] In some embodiments, the epitaxial plate is provided with a plurality, and the plurality of epitaxial plates are sequentially arranged along the length direction of the main plate.

[0012] In some embodiments, the epitaxial plate is hinged to the main plate through a hinge.

[0013] In some embodiments, the main plate is provided with a plurality, and the plurality of main plates are sequentially arranged along the length direction of the rear matching trolley, and any two adjacent main plates are fixedly connected.

[0014] In some embodiments, two epitaxial plates are hinged on each main plate.

[0015] In some embodiments, the upper surface of the main plate is constructed with anti-skid lines.

[0016] The utility model discloses achieved following technical effect relative to prior art:

[0017] The utility model provides a tunnel foldable walkway plate includes: main plate and epitaxial plate, at least part main plate is used to set up between rear matching trolley and tunnel wall, main plate is used for and rear matching trolley connects, epitaxial plate and main plate articulate, the included angle between the hinge shaft of epitaxial plate and main plate and rear matching trolley length direction is less than 10, epitaxial plate has two states, one is folding state, one is unfolded state, the included angle between epitaxial plate and main plate under folding state is less than 90 degrees, the included angle between epitaxial plate and main plate under unfolded state is greater than 90 degrees.

[0018] The epitaxial plate has a folding state and an unfolded state, the epitaxial plate in the unfolded state can block the gap between the main plate and the tunnel wall, thereby improving safety, and the epitaxial plate in the folding state can reduce the size in the width direction of the walkway plate, thereby improving passability. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0020] Figure 1A structural schematic view of a tunnel foldable walkway board in an unfolded state;

[0021] Figure 2 A structural schematic view of a tunnel foldable walkway board in a folded state;

[0022] Figure 3 A Figure 2 A top view of a tunnel foldable walkway board in a folded state;

[0023] Figure 4 A Figure 1 A top view of a tunnel foldable walkway board in a folded state;

[0024] Figure 5 A top view of a tunnel foldable walkway board in a folded state, and a top view of a tunnel foldable walkway board in an unfolded state;

[0025] In the figure: 1 - main plate; 2 - extension plate; 3 - hinged shaft; 100 - tunnel wall. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] The purpose of the present application is to provide a tunnel foldable walkway board to solve the problems existing in the prior art, which is high in safety and good in passability.

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] The existing walkway board usually has only one unfolded state. In some schemes, in order to maintain the passability of the walkway board in the tunnel, a large enough gap is needed between the outermost edge of the walkway board and the tunnel wall to cope with the uneven part of the tunnel wall. However, the large gap is not conducive to the walking of the staff on the walkway board, and the safety is low. In order to solve this problem, a detachable walkway board exists in some related technologies. When a protruding tunnel wall is encountered, the walkway board at the corresponding position is removed. This can improve the passability of the equipment to some extent, but it is relatively cumbersome. Based on this, the embodiments of the present application solve the defects in the background art and the above-mentioned embodiments.

[0030] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 5 ​

[0031] The utility model provides a kind of tunnel foldable walkway board, comprising: main plate 1 and extension plate 2, at least part main plate 1 is used to be set between rear matched trolley and tunnel wall 100, main plate 1 is used to connect with rear matched trolley;Extension plate 2 and main plate 1 are hinged, the included angle between the hinge shaft 3 of extension plate 2 and main plate 1 and rear matched trolley length direction is less than 10 °, extension plate 2 has two states, one is folding state, one is unfolded state, the included angle between extension plate 2 in folding state and main plate 1 is less than 90 degrees;The included angle between extension plate 2 in unfolded state and main plate 1 is greater than 90 degrees.The above-mentioned included angle refers to the included angle A as shown in Figure 1 .

[0032] The extension plate 2 therein has folding state and unfolded state, the extension plate 2 in unfolded state can shield the gap between main plate 1 and tunnel wall 100, to further improve safety, the extension plate 2 in folding state can reduce the size in walkway board width direction, to further improve passability.

[0033] When using, when there is no protruding structure in tunnel inner wall, extension plate 2 can be turned outwards and reach unfolded state, shielding the gap between main plate 1 and tunnel inner wall, to facilitate staff walking, improve safety;When encountering protruding structure, extension plate 2 at corresponding position is turned inwards to reach folding state, to further avoid structure interference between extension plate 2 and protruding structure of tunnel wall 100, to further improve the passability of equipment.

[0034] In some embodiments, to simplify structure, extension plate 2 in folding state is directly laid flat on main plate 1 under its own gravity, in ideal state, extension plate 2 and main plate 1 are parallel, but since extension plate 2 and main plate 1 are usually thin-walled plates, there is bending deformation in use process, so that extension plate 2 in folding state cannot be parallel to main plate 1.

[0035] In some embodiments, main plate 1 and extension plate 2 are both rectangular plates, one long side of main plate 1 is connected with rear matched trolley, and one long side of extension plate 2 is hinged with another long side of main plate 1.

[0036] The embodiment provides a specific structure of main plate 1 and extension plate 2, it can be understood that main plate 1 and extension plate 2 can be generally rectangular, for example, in some cases, chamfering treatment is needed on the edge of main plate 1 and extension plate 2, which is still defined as rectangular plate in the utility model.

[0037] In some embodiments, hinge shaft 3 is parallel to the length direction of main plate 1, and the length direction of main plate 1 is parallel to the length direction of rear matched trolley.

[0038] The utility model provides a kind of arrangement of hinged axle 3, this is the most ideal state.

[0039] In some embodiments, the width of the main plate 1 is greater than the width of the epitaxial plate 2.

[0040] In some embodiments, the epitaxial plate 2 is provided with several. The epitaxial plate 2 is preferably provided with multiple, and the multiple epitaxial plates 2 are sequentially arranged along the length direction of the main plate 1. There is no direct connection relationship between the multiple epitaxial plates 2, which is conducive to the folding or unfolding of the epitaxial plate 2 at the corresponding position.

[0041] In some embodiments, the epitaxial plate 2 is hinged to the main plate 1 through a hinge.

[0042] This embodiment provides a kind of hinged mode, it can be understood, in some examples, the hinge between the epitaxial plate 2 and the main plate 1 is also realized by setting the lug plate and the pin shaft.

[0043] In some embodiments, one side of the epitaxial plate 2 and one side of the main plate 1 are hinged through a hinge or a rotating shaft. This embodiment is suitable for the case where the distance between the main plate 1 and the tunnel wall 100 is less than the width of the epitaxial plate 2. When the distance between the main plate 1 and the tunnel wall 100 is too large, especially when the distance between the main plate 1 and the tunnel wall 100 is greater than the width of the epitaxial plate 2, in order to avoid excessive folding of the epitaxial plate 2, in some embodiments, the hinge or other hinge structure is arranged on the upper surface of the main plate 1 and close to the outer edge, which does not need to be next to the outer edge. This makes the hinge or other hinge structure have a certain space with the outer edge of the main plate 1. The main plate 1 at this space is used to support the epitaxial plate 2 in the unfolded state to prevent it from folding too much. In addition, it should be noted that, in use, the edge of the epitaxial plate 2 away from the main plate 1 in the unfolded state can be placed on the inner wall of the tunnel. The unfolding degree of the epitaxial plate 2 in this unfolded state is small, but it also belongs to the unfolded state. The edge of the epitaxial plate 2 away from the main plate 1 in the unfolded state can also be suspended. Under its own gravity, the epitaxial plate 2 and the main plate 1 are in an approximately parallel state. The unfolding degree of the epitaxial plate 2 in this unfolded state is large, which belongs to the fully unfolded state.

[0044] In some embodiments, the main plate 1 is provided with multiple blocks, and the multiple main plates 1 are sequentially arranged along the length direction of the rear matching trolley. Any two adjacent main plates 1 are fixedly connected, and the fixed connection mode is preferably welding.

[0045] In some embodiments, two epitaxial plates 2 are hinged to each main plate 1.

[0046] In some embodiments, the upper surface of the main plate 1 is structured with anti-skid lines.

[0047] This embodiment further improves the safety.

[0048] In use, the main plate 1 and the extension plate 2 move along with the rear matching trolley in the tunneling direction, and normally, the extension plate 2 is in the unfolded state to shield the gap between the main plate 1 and the tunnel inner wall, so as to improve the safety of the staff walking on the walkway plate; when the tunnel wall 100 surface has a protruding structure, and the protruding structure affects the passing of the walkway plate, the extension plate 2 at the corresponding position is turned inward to the folded state in advance, so as to avoid the structural interference between the extension plate 2 and the protruding structure of the tunnel wall 100, and improve the passability of the equipment.

[0049] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A tunnel foldable walkway panel, characterized by: The utility model relates to a tunnel wall supporting device, including: a main plate (1), at least part of the main plate (1) is used to set up between the rear matching trolley and the tunnel wall (100), the main plate (1) is used to be connected with the rear matching trolley; And an extension plate (2), the extension plate (2) and the main plate (1) articulate, the included angle between the articulation shaft (3) of the extension plate (2) and the main plate (1) and the length direction of the rear matching trolley is less than 10 DEG, the extension plate (2) has two states, one is folding state, one is unfolded state, the included angle between the extension plate (2) in folding state and the main plate (1) is less than 90 degrees;The included angle between the extension plate (2) in unfolded state and the main plate (1) is greater than 90 degrees.

2. The tunnel foldable walkway panel of claim 1, wherein: The main plate (1) and the extension plate (2) are rectangular plates, one long side of the main plate (1) is connected with the rear matching trolley, and one long side of the extension plate (2) is articulated with the other long side of the main plate (1).

3. The tunnel foldable walkway panel of claim 2, wherein: The articulation shaft (3) is parallel with the length direction of the main plate (1), and the length direction of the main plate (1) is parallel with the length direction of the rear matching trolley.

4. The tunnel foldable walkway panel of claim 2, wherein: The width of the main plate (1) is greater than the width of the extension plate (2).

5. The tunnel foldable walkway panel of claim 2, wherein: The extension plate (2) is provided with several.

6. The tunnel foldable walkway panel of claim 5, wherein: The extension plate (2) is provided with multiple, and multiple extension plates (2) are sequentially arranged along the length direction of the main plate (1).

7. The tunnel foldable walkway panel of claim 1, wherein: The extension plate (2) is articulated with the main plate (1) through a hinge.

8. The tunnel foldable walkway panel of claim 1, wherein: The main plate (1) is provided with multiple, and multiple main plates (1) are sequentially arranged along the length direction of the rear matching trolley, and any two adjacent main plates (1) are fixedly connected.

9. The tunnel foldable walkway panel of claim 8, wherein: Two extension plates (2) are articulated on each main plate (1).

10. The tunnel foldable walkway panel of claim 1, wherein: Antiskid lines are formed on the upper surface of the main plate (1).

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