Hoisting device in small-section tunnel

Abstract

The utility model relates to a hoisting device in a small-section tunnel, and relates to the technical field of tunnel construction equipment, the hoisting device comprises a track mounted at the top of the tunnel, a mounting seat mounted on the track and advancing along the track direction, and a pull rope fixedly connected to the mounting seat; the track comprises a steel plate pre-buried at the top of the tunnel and I-shaped steel fixedly connected with the steel plate; the I-shaped steel is vertically arranged; the mounting seat comprises two mounting plates which are arranged in parallel, a fixing bolt is arranged between the two mounting plates in a penetrating manner, pulleys are mounted on the opposite surfaces of the two mounting plates, the pulleys are rotationally connected with the mounting plates, a gap exists between the pulleys, and when the mounting seat is connected with the rail, the mounting plates are connected with the I-shaped steel through the pulleys in a hanging manner. The construction method has the effects that more labor and time are saved during construction, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction equipment, and in particular to a hoisting device in a small-section tunnel. Background Art

[0002] With the development of economy and the progress of society, convenient and easy tools emerge in an endless stream, which play the role of saving energy, easy to use, safe and efficient. The transportation of materials in small-section subway tunnels is no exception and requires efficient and labor-saving devices.

[0003] The on-site construction organization needs to carry out a flat plate load test in a small-section tunnel (net width of 3.5m and net height of 4.0m). The weight of the counterweight blocks and steel beams required for the test is relatively large, with the maximum single weight being 2.5t and the single size being 1.2×0.8×0.8m.

[0004] Due to the large volume and weight of the test counterweights and steel beams, the operating space in the tunnel is limited. Manual material handling poses a great construction risk and is very slow, which does not ensure safety and efficiency, prolongs the construction time, and fails to meet safety construction requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a safe and reliable lifting device that can be used in a narrow space, assist in material transportation and accurate installation of steel beams and counterweights, improve work efficiency and reduce safety risks.

[0006] The present application provides a small-section tunnel hoisting device that adopts the following technical solution:

[0007] A small-section in-tunnel hoisting device, characterized in that it comprises a track installed on the top of the tunnel, a mounting seat installed on the track and moving along the track direction, and a pull rope fixedly connected to the mounting seat;

[0008] The track includes a steel plate pre-buried in the top of the tunnel and an I-beam fixedly connected to the steel plate; the I-beam is arranged vertically;

[0009] The mounting seat includes two mounting plates arranged in parallel, a fixing bolt is passed between the two mounting plates, pulleys are installed on the opposite surfaces of the two mounting plates, the pulleys are rotatably connected to the mounting plates, and there is a gap between the pulleys. When the mounting seat is connected to the track, the mounting plates are hung together with the I-beams through the pulleys.

[0010] In order to better realize the present application, the following setting structure is particularly adopted: a connecting plate is sleeved on the fixing bolt, a connecting hole is opened on the connecting plate, and one end of the pull rope is tied to the connecting hole.

[0011] In order to further better implement the present application, the following setting structure is particularly adopted: the connecting plate is slidingly connected to the fixing bolt, and there is a gap at the connection between the connecting plate and the fixing bolt.

[0012] In order to better realize the present application, the following setting structure is particularly adopted: the pull rope is also fixedly connected to an electric fall chain.

[0013] To further implement the present application in a better manner, the following configuration is particularly adopted: a plurality of flush-arranged pulleys are mounted on each mounting plate.

[0014] In order to better implement the present application, the following setting structure is particularly adopted: a motor that drives the pulley to rotate is fixedly connected to the mounting plate.

[0015] In order to better realize the present application, the following setting structure is particularly adopted: anchor bars are passed through the steel plate.

[0016] In order to further implement the present application in a better manner, the following setting structure is particularly adopted: the steel plate is fixedly connected to a steel grid arranged in the tunnel.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The advantages of adopting the above structure are: the fixed track principle is adopted, and compared with manual handling, the construction saves more labor and time, improves the construction efficiency, and saves construction costs;

[0019] 2. The monorail is electrically operated, saving labor and time;

[0020] 3. The steel plate is pre-buried, which can better ensure the welding quality of the steel plate during the excavation process and ensure the safety and stability of the lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the arrangement of the hoisting device in the tunnel in this embodiment;

[0022] Figure 2 This is a schematic diagram of the connection between the mounting base and the track in this embodiment;

[0023] Figure 3 It is a schematic diagram of opening a connection hole on the connection plate in this embodiment.

[0024] Explanation of the reference numerals: 1. track; 11. steel plate; 12. I-beam; 2. mounting seat; 21. mounting plate; 22. fixing bolt; 23. pulley; 24. motor; 25. connecting plate; 3. pull rope; 4. electric fall chain. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The present application embodiment discloses a small-section tunnel hoisting device. Figure 1 The hoisting device in a small-section tunnel includes a track 1 installed on the top of the tunnel, a mounting base 2 installed on the track 1 and moving along the track 1, and a pull rope 3 fixedly connected to the mounting base 2. The mounting base 2 is slidably connected to the track 1, the material to be hoisted is connected to the pull rope 3, and then the mounting base 2 is slid along the track 1 to transport the material.

[0027] Reference Figure 2 The track 1 includes a steel plate 11 embedded in the top of the tunnel and an I-beam 12 fixedly connected to the steel plate 11. The I-beam 12 is arranged vertically.

[0028] Among them, a steel grating is arranged in the tunnel to reinforce and support the tunnel. When the tunnel guide hole is excavated and the steel grating is erected, a 10mm steel plate 11 is selected to be embedded and firmly welded to the steel grating every 1m, and anchor bars are passed through the steel plate 11 to reinforce the embedded steel plate 11.

[0029] The mounting seat 2 includes two mounting plates 21 arranged in parallel, and a fixing bolt 22 is inserted between the two mounting plates 21. The two mounting plates 21 are fixedly connected together by the fixing bolt 22, and pulleys 23 are installed on the opposite surfaces of the two mounting plates 21. The pulleys 23 are rotatably connected with the mounting plates 21, and there is a gap between the pulleys 23. When the mounting seat 2 is connected to the track 1, the mounting plates 21 are hung together with the I-beam 12 through the pulleys 23, and the pulleys 23 are rotated along the length direction of the I-beam 12 to realize the sliding of the mounting seat 2 along the track 1. A plurality of pulleys 23 arranged in parallel are installed on each mounting plate 21.

[0030] A motor 24 is fixedly connected to the mounting plate 21. The fixed connection position of the motor 24 is located on the outside of the two mounting plates 21. The motor 24 is connected to the pulley 23. The rotation of the output shaft of the motor 24 can drive the pulley 23 to rotate, so that when the motor 24 is started, it can automatically drive the mounting base 2 to move along the track 1.

[0031] Reference Figure 2 , Figure 3The mounting base 2 further includes a connecting plate 25, which is sleeved on the fixing bolts 22 and arranged between the two mounting plates 21. The connecting plate 25 can slide along the fixing bolts 22 between the two mounting plates 21, and there is a gap at the connection between the connecting plate 25 and the fixing bolts 22, so that the connecting plate 25 can move, which is convenient for adjusting the angle.

[0032] Reference Figure 1 One end of the pull rope 3 is fixedly connected to the connecting plate 25, and a connecting hole is provided on the connecting plate 25. The pull rope 3 is tied to the connecting hole and connected to the connecting plate 25. When the pull rope 3 is connected to the material and the pull rope 3 is tilted, the connecting plate 25 is movably connected to the fixing bolt 22, so that the angle of the pull rope 3 can be easily adjusted. The pull rope 3 is selected as a steel wire rope.

[0033] The pull rope 3 is also fixedly connected with an electric fall chain 4, and the electric fall chain 4 is convenient for adjusting the length, so that the pull rope 3 is convenient for pulling up the material.

[0034] The implementation principle of a small-section tunnel hoisting device in the embodiment of the present application is as follows: a track 1 is set at the top of the tunnel, and a mounting seat 2 is set, the mounting seat 2 is slidably connected to the track 1, and then the staff connects the material to the pull rope 3 on the mounting seat 2, so that the mounting seat 2 lifts the material, and then controls the mounting seat 2 to slide along the track 1 to transport the material. The fixed track 1 principle saves more labor and time compared to manual handling, improves construction efficiency, and saves construction costs.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hoisting device in a small-section tunnel, characterized in that: It comprises a track (1) installed on the top of a tunnel, a mounting seat (2) installed on the track (1) and moving along the direction of the track (1), and a pull rope (3) fixedly connected to the mounting seat (2); The track (1) comprises a steel plate (11) pre-buried in the top of the tunnel and an I-beam (12) fixedly connected to the steel plate (11); the I-beam (12) is arranged vertically; The mounting seat (2) comprises two mounting plates (21) arranged in parallel, a fixing bolt (22) is passed between the two mounting plates (21), pulleys (23) are installed on the opposite surfaces of the two mounting plates (21), the pulleys (23) are rotatably connected to the mounting plates (21), and there is a gap between the pulleys (23). When the mounting seat (2) is connected to the track (1), the mounting plates (21) are hung together with the I-beam (12) through the pulleys (23).

2. The small-section tunnel hoisting device according to claim 1 is characterized in that: A connecting plate (25) is sleeved on the fixing bolt (22), a connecting hole is opened on the connecting plate (25), and one end of the pull rope (3) is tied to the connecting hole.

3. The small-section tunnel hoisting device according to claim 2 is characterized in that: The connecting plate (25) is connected to the fixing bolt (22) by sliding movement, and a gap exists at the connection between the connecting plate (25) and the fixing bolt (22).

4. The small-section tunnel hoisting device according to claim 1, characterized in that: The pull rope (3) is also fixedly connected to an electric fall chain (4).

5. The small-section tunnel hoisting device according to claim 1, characterized in that: A plurality of pulleys (23) arranged in parallel are mounted on each mounting plate (21).

6. The small-section tunnel hoisting device according to claim 1, characterized in that: The mounting plate (21) is fixedly connected to a motor (24) for driving the pulley (23) to rotate.

7. The small-section tunnel hoisting device according to claim 1, characterized in that: Anchor bars are arranged on the steel plate (11).

8. The small-section tunnel hoisting device according to claim 1, characterized in that: The steel plate (11) is fixedly connected to a steel grid arranged in the tunnel.

Images