Tunnel operation bridge

Abstract

The utility model discloses a tunnel operation bridge which comprises a trestle, a trestle escape channel is arranged on the side edge of the trestle, the tunnel operation bridge further comprises an escape capsule body, capsule body escape channels are arranged at the front end and the rear end of the escape capsule body, a walking piece is arranged at the bottom of the escape capsule body, and the capsule body escape channel at the rear end is detachably connected with the trestle escape channel. According to the tunnel operation bridge disclosed by the embodiment of the invention, the escape cabin body can be connected with the trestle escape way or independently walk to cope with different collapse situations, so that the adaptability is high, and the safety is high; the escape cabin body can enlarge escape space and reduce congestion and disorder, operators can enter the escape cabin body firstly and then escape orderly, and the rescue number and survival probability of trapped persons are increased; capsule body escape channels at the two ends of the escape capsule body enable an escape space position to extend towards the front of the trestle, so that the escape time of operators in front of the tunnel is shortened; the escape capsule body is integrated into the trestle, the structure is simple and compact, and transfer is convenient.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a tunnel operation bridge. Background Art

[0002] During tunnel construction, there are risks such as roof collapse in the tunnel. The interior of the tunnel is a closed space with limited escape space, seriously threatening the lives of construction workers. Currently, although an escape pipeline is provided on one side of the trestle, when an emergency occurs, the interior workers in the tunnel enter the escape pipeline, which is prone to congestion and unable to evacuate orderly. Moreover, the escape pipeline at the front end of the trestle is generally short and far from the excavation face, making the spatial position of the safe escape entrance relatively backward. If a landslide or other dangerous situations occur in the front, it takes a long time for the workers to reach.

[0003] Chinese patent document with the publication number CN104727845A discloses a tunnel escape cabin, including a cabin body, with a cabin door and an escape door hinged on the cabin body, and crawlers connected to the bottom of the cabin body. The defect of this technical solution is that if the tunnel is blocked after a landslide, the escape cabin cannot move, resulting in the people inside can only wait for rescue passively, with a high safety risk. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tunnel operation bridge with a simple, compact structure, convenient transportation, high safety, and strong adaptability.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A tunnel operation bridge includes a trestle. A trestle escape passage is provided on the side of the trestle. The tunnel operation bridge further includes an escape cabin body. Both the front and rear ends of the escape cabin body are provided with cabin body escape passages. A walking member is provided at the bottom of the escape cabin body. The cabin body escape passage at the rear end is detachably connected to the trestle escape passage.

[0007] As a further improvement of the above technical solution:

[0008] At least one escape entrance is provided on the side of the cabin body escape passage.

[0009] The cabin body escape passage is a polyethylene passage, a fiberglass reinforced plastic passage, or a metal passage.

[0010] The walking member is a walking wheel or a crawler.

[0011] An installation bracket is provided on the side of the trestle. The trestle escape passage is arranged on the installation bracket, and the trestle escape passage is connected to a driving mechanism to expand and contract along the installation bracket.

[0012] The installation bracket is provided with a first limiting portion, and the outer wall of the trestle escape passage is provided with a second limiting portion that cooperates with the first limiting portion.

[0013] The driving mechanism includes a driving sprocket and a driven sprocket provided on the trestle, and a transmission chain wound around the driving sprocket and the driven sprocket. The trestle escape passage is connected to the transmission chain.

[0014] The cabin escape passage at the rear end is docked with the trestle escape passage through a quick connector.

[0015] The trestle includes a main bridge, a front approach bridge and a rear approach bridge respectively hinged at both ends of the main bridge;

[0016] A trestle walking member is provided at the rear end of the main bridge, a leg is provided at the front end of the main bridge, and a bracket is provided on the leg. The bracket is located below the trestle escape passage.

[0017] Food, water, oxygen cylinders and / or communication equipment are placed in the escape cabin.

[0018] Compared with the prior art, the advantages of the present utility model are as follows:

[0019] For the tunnel operation bridge of the present utility model, the escape cabin is detachably connected to the trestle escape passage, so that the escape cabin can be connected to the trestle escape passage or walk independently to cope with different collapse situations, with strong adaptability and high safety; the escape cabin can increase the escape space, reduce congestion and chaos. The operators can first enter the escape cabin and then escape in an orderly manner, improving the number of trapped persons rescued and the survival probability; the cabin escape passages at both ends of the escape cabin extend the escapable space position forward of the trestle, shortening the escape time required for the operators in front of the tunnel; integrating the escape cabin into the trestle as a whole, the structure is simple and compact. During transportation, the escape cabin can be transported together with the trestle, which is convenient for transportation. Description of the Drawings

[0020] Figure 1 is a side view of the tunnel operation bridge of the present utility model.

[0021] Figure 2 is Figure 1 the enlarged view of A in

[0022] Figure 3 is a side view of the escape cabin walking in the tunnel operation bridge of the present utility model.

[0023] Figure 4 is a top view of the tunnel operation bridge of the present utility model when a collapse occurs at the trestle.

[0024] Figure 5It is a top view of the tunnel operation bridge of the present utility model when there is a collapse at the escape passage of the trestle bridge.

[0025] Figure 6 It is a top view of the tunnel operation bridge of the present utility model when there are collapses at both the trestle bridge and the escape passage of the trestle bridge.

[0026] Figure 7 It is a side view of the tunnel operation bridge of the present utility model when the walking member is a crawler.

[0027] Figure 8 It is a side view of the tunnel operation bridge of the present utility model when the walking member is a walking wheel.

[0028] In the figure, each label indicates: 1, trestle bridge; 11, escape passage of the trestle bridge; 12, mounting bracket; 13, main bridge; 14, front approach bridge; 15, rear approach bridge; 16, walking member of the trestle bridge; 17, support leg; 18, bracket; 2, escape capsule; 21, escape passage of the capsule; 22, escape entrance; 23, walking member; 3, drive mechanism; 31, drive sprocket; 32, driven sprocket; 33, drive chain; 4, quick connector; 51, first limiting portion; 52, second limiting portion. Detailed implementation manners

[0029] The following will further describe the present utility model in detail with reference to the accompanying drawings of the specification and specific embodiments.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "assembly", "connected", "connected to", "fixed" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] As Figures 1 to 8 shown, the tunnel operation bridge of this embodiment includes a trestle 1, and a trestle escape passage 11 is provided on the side of the trestle 1. The tunnel operation bridge further includes an escape cabin 2. Cabin escape passages 21 are provided at both the front and rear ends of the escape cabin 2. A walking member 23 is provided at the bottom of the escape cabin 2. The cabin escape passage 21 at the rear end is detachably connected to the trestle escape passage 11. Among them, the front is the tunneling direction of the tunnel, and the rear is the entrance direction of the tunnel.

[0034] In the tunnel operation bridge of this embodiment, when a collapse occurs at the trestle 1 (specifically as Figure 4 shown), the operators in front of the trestle 1 enter the escape cabin 2 through the cabin escape passage 21, and then orderly enter the trestle escape passage 11 from the escape cabin 2 and transfer to the safe area at the rear; when a collapse occurs at the trestle escape passage 11 (specifically as Figure 3 and Figure 5 shown), the operators in front of the trestle 1 enter the escape cabin 2 through the cabin escape passage 21. The cabin escape passage 21 at the rear end of the escape cabin 2 is disconnected from the trestle escape passage 11, and the escape cabin 2 walks independently through the walking member 23 and transfers from the trestle 1 to the safe area at the rear; when collapses occur at both the trestle 1 and the trestle escape passage 11 (specifically as Figure 6 shown), due to the collapse at the trestle escape passage 11, if transferring through the trestle escape passage 11, the risk is relatively high. And because of the collapse at the trestle 1, the escape cabin 2 cannot pass through the trestle 1 either. Therefore, after the operators in front of the trestle 1 enter the escape cabin 2 through the cabin escape passage 21, they wait for rescue in the escape cabin 2.

[0035] In the tunnel operation bridge of this embodiment, the escape cabin 2 is detachably connected to the trestle escape passage 11, enabling the escape cabin 2 to be connected to the trestle escape passage 11 or to move independently to cope with different collapse situations, with strong adaptability and high safety. The escape cabin 2 can increase the escape space, reduce congestion and chaos. The operating personnel can first enter the escape cabin and then escape in an orderly manner, improving the number of trapped personnel rescued and the survival probability. The cabin escape passages 21 at both ends of the escape cabin 2 extend the escapable space position forward of the trestle 1, shortening the escape time required for the operating personnel in the front of the tunnel. Integrating the escape cabin 2 with the trestle 1 makes the structure simple and compact. During transportation, the escape cabin 2 can be transported together with the trestle 1, facilitating transportation.

[0036] Further, as Figure 1 shown, in this embodiment, an escape entrance 22 is provided on the side of the cabin escape passage 21. When a collapse occurs, the operating personnel can enter the cabin escape passage 21 from the escape entrance 22 without having to go around to the entrance at the front end of the cabin escape passage 21, saving escape time. Of course, in other embodiments, multiple escape entrances 22 can also be provided, and the operating personnel can choose to enter the cabin escape passage 21 through the nearby escape entrance 22, further saving escape time.

[0037] Further, in this embodiment, the cabin escape passage 21 is a polyethylene passage with good waterproof and corrosion resistance. Of course, in other embodiments, the cabin escape passage 21 can also be a fiberglass passage or a metal passage with higher compressive strength.

[0038] Further, as Figure 7 shown, in this embodiment, the walking member 23 is a crawler. The crawler can adapt to the complex terrain in the tunnel after a collapse. Of course, in other embodiments, as Figure 8 shown, the walking member 23 can also be a walking wheel. The walking wheel is light, more flexible in turning, and convenient for walking and moving on the trestle 1, with faster movement.

[0039] Further, as Figure 1 and Figure 2 shown, in this embodiment, an installation bracket 12 is provided on the side of the trestle 1, and the trestle escape passage 11 is arranged on the installation bracket 12. The trestle escape passage 11 is connected to the driving mechanism 3 to expand and contract along the installation bracket 12. By driving the trestle escape passage 11 to reciprocate along the installation bracket 12 for expansion and contraction, the trestle escape passage 11 can be retracted into the installation bracket 12 during transportation for easy transportation, and can be extended out of the installation bracket 12 during construction to extend the length of the escape passage, with strong controllability.

[0040] Further, as Figure 2As shown, in this embodiment, a first limiting portion 51 is provided on the mounting bracket 12, and a second limiting portion 52 cooperating with the first limiting portion 51 is provided on the outer wall of the pier escape passage 11. When the pier escape passage 11 is extended, the first limiting portion 51 conflicts with the cooperating second limiting portion 52, which can limit the pier escape passage 11, so that the pier escape passage 11 cannot completely escape from the mounting bracket 12, and the reliability is higher. Among them, the first limiting portion 51 and the second limiting portion 52 can be, for example, limiting blocks, limiting plates, etc.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, in the present embodiment, the driving mechanism 3 includes a driving sprocket 31 and a driven sprocket 32 arranged on the trestle 1, and a transmission chain 33 wound around the driving sprocket 31 and the driven sprocket 32, and the trestle escape passage 11 is connected to the transmission chain 33. The sprocket transmission structure drives the trestle escape passage 11 to reciprocate and telescopically move, and the transmission is stable and reliable. Preferably, in the present embodiment, the driving sprocket 31 is driven by a motor with a reducer, and the reducer plays a role of deceleration and torque increase, and can provide a greater driving force. Of course, in other embodiments, the reciprocating movement of the trestle escape passage 11 can also be achieved by a hydraulic cylinder and a gear rack mechanism, and the specific structure will not be repeated.

[0042] Furthermore, if Figure 1 As shown, in this embodiment, the rear cabin escape passage 21 is connected to the pier escape passage 11 through a quick connector 4. The quick connector 4 allows the escape cabin 2 to be connected and disconnected with the pier escape passage 11 quickly, further shortening the time required for escape.

[0043] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the trestle 1 includes a main bridge 13 and a front approach bridge 14 and a rear approach bridge 15 respectively hinged at both ends of the main bridge 13; a trestle walking member 16 is provided at the rear end of the main bridge 13, and a support leg 17 is provided at the front end of the main bridge 13, and a bracket 18 is provided on the support leg 17, and the bracket 18 is located below the trestle escape passage 11. During construction, the front approach bridge 14 and the rear approach bridge 15 are arranged to be tilted downward and in contact with the ground, so that the escape capsule 2 can get on and off the main bridge 13 with the help of the front approach bridge 14 and the rear approach bridge 15; during transportation, the front approach bridge 14 and the rear approach bridge 15 are swung upward to leave the ground for easy transportation. By providing the pier walking member 16, the transportation of the pier 1 is facilitated. In this embodiment, the pier walking member 13 is a walking wheel, which is simple and easy to use; the support legs 17 can provide support for the main bridge 13, and the structure is firm; when the pier escape passage 11 is extended, the bracket 18 supports the part of the pier escape passage 11 extending from the mounting bracket 12, and the pier escape passage 11 is not easy to sag and deform, so that the pier escape passage 11 can be extended to a longer length.

[0044] Further, in this embodiment, food, water, oxygen cylinders, and communication devices are placed inside the escape capsule 2. Emergency supplies are stocked inside the escape capsule 2 to increase the survival probability of the trapped people waiting for rescue inside the escape capsule 2.

[0045] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A tunnel operation bridge, comprising a trestle bridge (1), and a trestle bridge escape passage (11) is arranged on the side of the trestle bridge (1), characterized in that: The tunnel operation bridge further includes an escape cabin (2). Both the front and rear ends of the escape cabin (2) are provided with cabin escape passages (21). A walking member (23) is provided at the bottom of the escape cabin (2). The cabin escape passage (21) at the rear end is detachably connected to the trestle escape passage (11).

2. The tunnel operation bridge according to claim 1, wherein: At least one escape entrance (22) is provided on the side of the cabin escape passage (21).

3. The tunneling operation bridge according to claim 1, wherein: The cabin escape passage (21) is a polyethylene passage, a fiberglass passage or a metal passage.

4. The tunneling operation bridge according to claim 1, characterized in that: The walking member (23) is a walking wheel or a crawler.

5. The tunnel operation bridge according to claim 1, characterized in that: An installation bracket (12) is provided on the side of the trestle (1). The trestle escape passage (11) is arranged on the installation bracket (12). The trestle escape passage (11) is connected to a driving mechanism (3) to expand and contract along the installation bracket (12).

6. The tunneling operation bridge according to claim 5, characterized in that: A first limiting portion (51) is provided on the installation bracket (12). A second limiting portion (52) that cooperates with the first limiting portion (51) is provided on the outer wall of the trestle escape passage (11).

7. The tunnel operation bridge according to claim 5, wherein: The driving mechanism (3) includes a driving sprocket (31) and a driven sprocket (32) arranged on the trestle (1), and a transmission chain (33) wound around the driving sprocket (31) and the driven sprocket (32). The trestle escape passage (11) is connected to the transmission chain (33).

8. The tunnel operation bridge according to claim 1, wherein: The cabin escape passage (21) at the rear end is docked with the trestle escape passage (11) through a quick connector (4).

9. The tunnel operation bridge according to any one of claims 1 to 8, characterized in that: The trestle (1) includes a main bridge (13), a front approach bridge (14) and a rear approach bridge (15) respectively hinged at both ends of the main bridge (13). A trestle walking member (16) is provided at the rear end of the main bridge (13). A support leg (17) is provided at the front end of the main bridge (13). A bracket (18) is provided on the support leg (17). The bracket (18) is located below the trestle escape passage (11).

10. The tunnel operation bridge according to any one of claims 1 to 8, characterized in that: Food, water, oxygen cylinders and / or communication equipment are placed in the escape cabin (2).

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