Escape operation bridge

Abstract

The utility model discloses an escape operation bridge which comprises a bridge body, an installation support, an escape channel and a driving mechanism, the installation support is arranged on one side of the bridge body, the escape channel is arranged on the installation support, and the driving mechanism is connected with the escape channel to drive the escape channel to move back and forth along the installation support. According to the escape operation bridge, during construction, the driving mechanism drives the escape channel to move along the mounting bracket and extend out of the mounting bracket, so that the escape channel is prolonged. According to the escape operation bridge, the installation support and the escape channel are arranged on one side of the bridge body, the escape function is integrated into the escape operation bridge, and the escape operation bridge is simple and compact in structure, easy to assemble and disassemble and convenient to transfer.

Description

Technical Field

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

[0002] In tunnel construction, according to regulations, an escape passage must be set up, which is set from the second lining to the excavation face, about 30 meters away from the face. In an emergency, the escape passage is used for escape, self-rescue, rescue and external communication, and can quickly help construction workers evacuate dangerous areas. At present, fixed escape pipes purchased from the market are usually used, but they cannot be retracted and have poor controllability; the working conditions on the construction site are poor, and the installation and disassembly are difficult; in order to meet the laying length requirements, the escape pipe has many connection joints.

[0003] The Chinese patent document with publication number CN117052459A discloses a telescopic tunnel construction safety escape passage, wherein the telescopic pipe group includes a plurality of pipes, which are sleeved together with a gap between two adjacent pipes. The technical solution has the following defects: the escape passage is set up separately and is not integrated with other equipment; the equipment is scattered and interferes a lot within the safe step range; the construction safety risk is relatively large; the construction equipment has relatively single functions and is complicated to transport. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an escape operation bridge which has a simple and compact structure, is easy to install and disassemble, is convenient to transport, and has an escape passage with strong controllability.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An escape operation bridge comprises a bridge body, a mounting bracket, an escape passage and a driving mechanism, wherein the mounting bracket is arranged on one side of the bridge body, the escape passage is arranged on the mounting bracket, and the driving mechanism is connected to the escape passage to drive the escape passage to reciprocate along the mounting bracket.

[0007] As a further improvement of the above technical solution: a plurality of groups of first pulley assemblies are arranged on the mounting bracket at intervals along the length direction of the escape passage.

[0008] As a further improvement of the above technical solution: the first pulley assembly includes a plurality of first pulleys, and the plurality of first pulleys are distributed along the periphery of the escape passage.

[0009] As a further improvement of the above technical solution: the bridge body includes a main bridge and a rear approach bridge and a front approach bridge respectively hinged to both ends of the main bridge.

[0010] As a further improvement of the above technical solution: the mounting bracket is equal in length to the main bridge.

[0011] As a further improvement of the above technical solution: an end of the escape passage away from the rear approach bridge is provided with a mounting joint for docking with the escape pipe.

[0012] As a further improvement of the above technical solution: a walking member is provided at one end of the main bridge, and the walking member and the rear approach bridge are located at the same end of the main bridge. A supporting leg is provided at the other end of the main bridge, and a bracket is provided on the supporting leg, and the bracket is located below the escape passage.

[0013] As a further improvement of the above technical solution: a plurality of groups of second pulley assemblies are arranged on the bracket at intervals along the length direction of the escape passage;

[0014] And / or, diagonal tie rods are provided on both sides of the bracket, and ends of the diagonal tie rods are connected to the mounting bracket.

[0015] As a further improvement of the above technical solution: a first limiting portion is provided on the mounting bracket, and a second limiting portion cooperating with the first limiting portion is provided on the outer wall of the escape passage.

[0016] As a further improvement of the above technical solution: the driving mechanism includes a driving sprocket and a driven sprocket arranged on the bridge body, and a transmission chain wound around the driving sprocket and the driven sprocket, and the escape channel is connected to the transmission chain.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The escape operation bridge of the utility model, during transportation, firstly drives the escape passage to move along the mounting bracket and be received in the mounting bracket by the driving mechanism; during construction, the driving mechanism drives the escape passage to move along the mounting bracket and extend out of the mounting bracket to achieve the extension of the escape passage. The escape operation bridge of this embodiment integrates the escape function into the escape operation bridge by arranging the mounting bracket and the escape passage on one side of the bridge body, and has a simple and compact structure, simple installation and disassembly, and convenient transportation; the escape passage is driven to reciprocate along the mounting bracket by the driving mechanism, so that the escape passage can be received in the mounting bracket during transportation, and can extend out of the mounting bracket during construction, and has strong controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model escape operation bridge.

[0020] Figure 2 It is a top view of the utility model escape operation bridge.

[0021] Figure 3 It is a side view of the utility model escape operation bridge.

[0022] Figure 4It is a front view of the escape passage in the escape operation bridge of the utility model when it is extended.

[0023] Figure 5 It is a top view of the escape passage in the escape operation bridge of the utility model when it is extended.

[0024] Figure 6 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 7 yes Figure 4 Enlarged view of point B in the middle.

[0026] The numbers in the figure represent: 1. bridge body; 11. main bridge; 12. rear approach bridge; 13. walking member; 14. support leg; 15. front approach bridge; 2. mounting bracket; 21. first pulley assembly; 211. first pulley; 22. first limiting part; 3. escape passage; 31. second limiting part; 32. mounting joint; 4. driving mechanism; 41. driving sprocket; 42. driven sprocket; 43. transmission chain; 5. bracket; 51. second pulley assembly. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 7 As shown, the escape operation bridge of this embodiment includes a bridge body 1, a mounting bracket 2, an escape passage 3 and a driving mechanism 4. The mounting bracket 2 is arranged on one side of the bridge body 1, the escape passage 3 is arranged on the mounting bracket 2, and the driving mechanism 4 is connected to the escape passage 3 to drive the escape passage 3 to reciprocate along the mounting bracket 2.

[0032] The escape operation bridge of this embodiment, during transportation, firstly drives the escape passage 3 to move toward one end of the mounting bracket 2 by the driving mechanism 4, so that the escape passage 3 is received in the mounting bracket 2; during construction, the driving mechanism 4 drives the escape passage 3 to move toward the other end of the mounting bracket 2 or in reverse, so that the escape passage 3 extends out of the mounting bracket 2, thereby extending the escape passage 3. The escape operation bridge of this embodiment integrates the escape function into the escape operation bridge by arranging the mounting bracket 2 and the escape passage 3 on one side of the bridge body 1, and has a simple and compact structure, simple installation and disassembly, and convenient transportation; the escape passage 3 is driven to reciprocate along the mounting bracket 2 by the driving mechanism 4, so that the escape passage 3 can be received in the mounting bracket 2 during transportation, and can extend out of the mounting bracket 2 during construction, and has strong controllability.

[0033] Furthermore, in this embodiment, a plurality of first pulley assemblies 21 are provided at intervals along the length direction of the escape passage 3 on the mounting bracket 2. By providing a plurality of first pulley assemblies 21 at intervals along the length direction of the escape passage 3, the escape passage 3 moves smoothly and steadily when reciprocating along the mounting bracket 2.

[0034] Furthermore, in this embodiment, if Figure 3 As shown, the first pulley assembly 21 includes a plurality of first pulleys 211, and the plurality of first pulleys 211 are distributed along the periphery of the escape passage 3. The plurality of first pulleys 211 distributed along the periphery of the escape passage 3 make the escape passage 3 more smooth when telescopically moving on the mounting bracket 2, and can also improve the centering degree of the escape passage 3, avoid deviation, and facilitate docking with an externally purchased escape pipe (not shown in the figure).

[0035] Furthermore, in this embodiment, the bridge body 1 includes a main bridge 11 and a rear approach bridge 12 and a front approach bridge 15 respectively hinged at both ends of the main bridge 11. During construction, the rear approach bridge 12 and the front approach bridge 15 are arranged to be tilted downward and in contact with the ground, which is convenient for vehicles and personnel to pass; during transportation, the rear approach bridge 12 and the front approach bridge 15 are rotated upward and separated from the ground, which is convenient for transportation. The front is the excavation direction of the tunnel.

[0036] Furthermore, in this embodiment, the mounting bracket 2 is equal in length to the main bridge 11. The mounting bracket 2 is equal in length to the main bridge 11, that is, the escape passage 3 only needs to be less than or equal to the length of the main bridge 11 to be completely received in the mounting bracket 2, which can improve the integrity of the escape operation bridge and ensure the length of the escape passage 3, without the need for a joint in the middle, and has better reliability.

[0037] Further, in this embodiment, an end of the escape passage 3 away from the rear approach bridge 12 is provided with a mounting joint 32 for docking with an escape pipe. By providing the mounting joint 32, the escape passage 3 can be connected to an externally purchased escape pipe after being extended, which is simple and easy to use.

[0038] Furthermore, in this embodiment, a walking member 13 is provided at one end of the main bridge 11, and the walking member 13 and the rear approach bridge 12 are located at the same end of the main bridge 11, and a support leg 14 is provided at the other end of the main bridge 11, and a bracket 5 is provided on the support leg 14, and the bracket 5 is located below the escape passage 3. By providing the walking member 13, the transportation of the escape operation bridge is facilitated. In this embodiment, the walking member 13 is a walking wheel, which is simple and easy to use; by providing the support leg 14, the main bridge 11 and the escape passage 3 can be supported during construction, and the structure is firm; when the escape passage 3 is extended, the bracket 5 supports the part of the escape passage 3 extending from the mounting bracket 2, and the escape passage 3 is not easy to sag and deform, so that the escape passage 3 can be extended to a longer length.

[0039] Furthermore, in this embodiment, multiple sets of second pulley assemblies 51 are arranged at intervals along the length direction of the escape passage 3 on the bracket 5. By arranging multiple sets of second pulley assemblies 51 at intervals along the length direction of the escape passage 3, the escape passage 3 moves more smoothly and stably when moving along the bracket 5. Furthermore, a diagonal tie rod (not shown in the figure) can be arranged between the bracket 5 and the mounting bracket 2, and two diagonal tie rods are arranged and distributed on both sides of the bracket 5, which can greatly improve the strength of the bracket 5 in the cantilever state. The cross section of the diagonal tie rod is not limited to a circle, and can also be a profile such as an I-beam, a channel steel, or other self-made shapes.

[0040] Furthermore, in this embodiment, if Figure 7As shown, the mounting bracket 2 is provided with a first limiting portion 22, and the outer wall of the escape passage 3 is provided with a second limiting portion 31 that cooperates with the first limiting portion 22. When the escape passage 3 is extended, the first limiting portion 22 conflicts with the second limiting portion 31, which can limit the escape passage 3, so that the escape passage 3 cannot completely escape from the mounting bracket 2, and the reliability is better. Among them, the first limiting portion 22 and the second limiting portion 31 can be, for example, limiting blocks, limiting plates, etc.

[0041] Furthermore, in the present embodiment, the driving mechanism 4 includes a driving sprocket 41 and a driven sprocket 42 provided on the bridge body 1, and a transmission chain 43 wound around the driving sprocket 41 and the driven sprocket 42, and the escape channel 3 is connected to the transmission chain 43. The escape channel 3 is driven to move back and forth by the sprocket transmission structure, and the transmission is stable and reliable. Preferably, in the present embodiment, the driving sprocket 41 is driven by a motor with a reducer, and the reducer plays a role of reducing speed and increasing torque, and can provide a greater driving force. Of course, in other embodiments, the reciprocating movement of the escape channel 3 can also be achieved by a hydraulic cylinder and a gear rack mechanism, and the specific structure will not be repeated.

[0042] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above in the preferred embodiment, it is not used to limit the utility model. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model, still fall within the scope of protection of the technical solution of the utility model.

Claims

1. An escape operation bridge, characterized in that: The invention comprises a bridge body (1), a mounting bracket (2), an escape passage (3) and a driving mechanism (4), wherein the mounting bracket (2) is arranged on one side of the bridge body (1), the escape passage (3) is arranged on the mounting bracket (2), and the driving mechanism (4) is connected to the escape passage (3) to drive the escape passage (3) to move back and forth along the mounting bracket (2).

2. The escape operation bridge according to claim 1, characterized in that: A plurality of groups of first pulley assemblies (21) are arranged on the mounting bracket (2) at intervals along the length direction of the escape passage (3).

3. The escape operation bridge according to claim 2, characterized in that: The first pulley assembly (21) comprises a plurality of first pulleys (211), and the plurality of first pulleys (211) are distributed along the periphery of the escape passage (3).

4. The escape operation bridge according to any one of claims 1 to 3, characterized in that: The bridge body (1) comprises a main bridge (11) and a rear approach bridge (12) and a front approach bridge (15) respectively hinged to two ends of the main bridge (11).

5. The escape operation bridge according to claim 4, characterized in that: The mounting bracket (2) is of the same length as the main bridge (11).

6. The escape operation bridge according to claim 4, characterized in that: An end of the escape passage (3) away from the rear approach bridge (12) is provided with a mounting joint (32) for docking with an escape pipe.

7. The escape operation bridge according to claim 4, characterized in that: A walking member (13) is provided at one end of the main bridge (11), and the walking member (13) and the rear approach bridge (12) are located at the same end of the main bridge (11). A supporting leg (14) is provided at the other end of the main bridge (11), and a bracket (5) is provided on the supporting leg (14), and the bracket (5) is located below the escape passage (3).

8. The escape operation bridge according to claim 7, characterized in that: A plurality of groups of second pulley assemblies (51) are arranged on the bracket (5) at intervals along the length direction of the escape passage (3); And / or, diagonal tie rods are provided on both sides of the bracket (5), and the ends of the diagonal tie rods are connected to the mounting bracket (2).

9. The escape operation bridge according to any one of claims 1 to 3, characterized in that: The mounting bracket (2) is provided with a first limiting portion (22), and the outer wall of the escape passage (3) is provided with a second limiting portion (31) that cooperates with the first limiting portion (22).

10. The escape operation bridge according to any one of claims 1 to 3, characterized in that: The driving mechanism (4) comprises a driving sprocket (41) and a driven sprocket (42) arranged on the bridge body (1), and a transmission chain (43) wound around the driving sprocket (41) and the driven sprocket (42), and the escape passage (3) is connected to the transmission chain (43).

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