Trestle for turning around of vehicles in tunnel

Abstract

The utility model relates to a trestle for turning around vehicles in a tunnel, which comprises a trestle main body, a supporting structure for supporting the trestle main body, a front approach bridge arranged at the front end of the trestle main body and a rear approach bridge arranged at the rear end of the trestle main body, a turning-around device is embedded on the upper surface of the trestle main body, and the supporting structure comprises a fixed supporting leg and a movable supporting leg. The fixed supporting legs are arranged at the two ends of the trestle body, the movable supporting legs are arranged in the middle of the trestle body, each of the fixed supporting legs and the movable supporting legs comprises a sleeve and an inner column arranged in the sleeve in a sleeved mode, the sleeves of the fixed supporting legs are fixedly connected with the trestle body, and the sleeves of the movable supporting legs can move in the length direction of the trestle body through walking devices. By arranging the turning device, when a vehicle needs to turn around, the vehicle can be driven onto the trestle and steered through the turning device, and passing of other vehicles is not affected, so that the use efficiency of a road is greatly improved, meanwhile, the trestle can adapt to the installation requirements of different heights, production standardization of the trestle is facilitated, and the application range of the trestle is wider.

Description

Technical Field

[0001] The utility model relates to a trestle, in particular to a trestle used for turning vehicles in a tunnel. Background Art

[0002] Currently, vehicle U-turns are often a challenge within tunnels and during construction, especially given the limited space inside. Traditional U-turn methods often require the vehicle to reverse or find a specific turning area, which not only slows down construction progress but also poses potential safety risks. Therefore, designing a trestle that can efficiently and safely enable vehicle U-turns is crucial. Utility Model Content

[0003] Therefore, in order to solve the above problems, the present invention proposes a trestle for turning vehicles in a tunnel.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a trestle for vehicle U-turns in a tunnel, comprising a trestle body, a supporting structure supporting the trestle body, a front approach bridge arranged at the front end of the trestle body, and a rear approach bridge arranged at the rear end of the trestle body, a U-turn device being embedded in the upper surface of the trestle body, the supporting structure comprising fixed legs and movable legs, the fixed legs being arranged at both ends of the trestle body, and the movable legs being arranged in the middle of the trestle body, the fixed legs and the movable legs both comprising a sleeve and an inner column sleeved in the sleeve, the sleeve of the fixed leg being fixedly connected to the trestle body, and the sleeve of the movable leg being movably arranged on the trestle body along the length direction of the trestle body through a walking device.

[0005] As a further improvement, the trestle body includes main beams arranged on both sides, lower cross beams arranged between the two main beams, and a driving plate arranged on the lower cross beam, and the fixed legs and movable legs are arranged on the main beams.

[0006] As a further improvement, a connecting beam is provided between the sleeves of the two movable legs which are symmetrically arranged in the length direction of the trestle body.

[0007] Further improvement, the walking device includes an upper walking wheel fixed to the upper end of the sleeve of the movable support leg and a lower walking wheel arranged at the lower end of the sleeve of the movable support leg, the main beam is arranged between the upper walking wheel and the lower walking wheel, and the main beam is provided with a track for the upper walking wheel and the lower walking wheel to travel.

[0008] As a further improvement, the sleeve and the inner column are fixed by high-strength bolts or rivets.

[0009] As a further improvement, the front approach bridge and the rear approach bridge are respectively hinged to the trestle body.

[0010] As a further improvement, the U-turn device includes a turntable, a driving mechanism, and a gear transmission assembly connecting the turntable and the driving mechanism.

[0011] As a further improvement, the main body of the trestle is a two-way single lane.

[0012] By adopting the above-mentioned technical scheme, the beneficial effects of the utility model are as follows: the utility model provides a U-turn device on the trestle body. When a vehicle needs to turn around, the vehicle can be driven onto the trestle and turned through the U-turn device without affecting the passage of other vehicles, thereby greatly improving the efficiency of road use; at the same time, the trestle body, through the support structure provided, effectively supports and stabilizes the entire trestle structure, ensuring its safety and reliability in various working environments, and also facilitates the transfer of the movable legs to a suitable position according to the terrain through the provided movable legs, so that the trestle can maintain a good balance state under different terrain conditions. In addition, the fixed legs and the movable legs are assembled with sleeves and inner columns, so that it can adapt to installation requirements of different heights, facilitates its production standardization, and makes the trestle more widely applicable; further, the setting of the connecting beam enhances the stability of the entire trestle structure and improves the safety of the trestle; further, the trestle adopts a two-way single-lane structure, which improves traffic efficiency and reduces waiting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0015] Figure 3 It is a structural diagram of the movable supporting legs of the utility model;

[0016] Figure 4 It is a structural diagram of the utility model;

[0017] Figure 5 yes Figure 4 Schematic diagram of the large structure at point B.

[0018] icon:

[0019] 11. Main beam; 111. Track; 12. Lower crossbeam; 13. Driving plate; 14. Front approach bridge; 15. Rear approach bridge; 21. Fixed support leg; 22. Movable support leg; 231. Upper running wheel; 232. Lower running wheel; 24. Connecting beam; 201. Sleeve; 202. Inner column; 203. Reinforcement cylinder; 204. Reinforcement column; 31. Turntable; 32. Drive mechanism; 33. Gear assembly. DETAILED DESCRIPTION

[0020] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0021] refer to Figure 1-5 This embodiment provides a trestle for turning vehicles in a tunnel, including a trestle body, a supporting structure supporting the trestle body, a front approach bridge 14 arranged at the front end of the trestle body, and a rear approach bridge 15 arranged at the rear end of the trestle body. A U-turn device is embedded in the upper surface of the trestle body.

[0022] In this embodiment, the main body of the trestle is a two-way single lane, which includes main beams 11 on both sides, lower cross beams 12 spaced between the two main beams 11, and a driving plate 13 on the lower cross beam 12, and the front approach bridge 14 and the rear approach bridge 15 are respectively hinged to the driving plate 13.

[0023] In this embodiment, the support structure includes a fixed leg 21 and a movable leg 22. The fixed leg 21 is provided at both ends of the trestle body, and the movable leg 22 is provided in the middle of the trestle body, that is, between the two fixed legs 21. Specifically, the fixed leg 21 and the movable leg 22 each include a sleeve 201 and an inner column 202 sleeved in the sleeve 201. During installation, the relative position between the sleeve 201 and the inner column 202 is adjusted and fixed by high-strength bolts. The sleeve of the fixed leg 21 is fixedly connected to the main beam 11 of the trestle body, and the sleeve of the movable leg 22 is enabled to move along the main beam of the trestle body through a walking device. It is movably arranged on the main beam 11 of the pier body in the length direction of the body, wherein the walking device includes an upper walking wheel 231 fixed to the upper end of the sleeve 201 of the movable support leg 22 and a lower walking wheel 232 arranged at the lower end of the sleeve 201 of the movable support leg 22, and the main beam 11 is arranged between the upper walking wheel 231 and the lower walking wheel 232, and the main beam 11 is provided with a track 111 for the upper walking wheel 231 and the lower walking wheel 232 to walk. At the same time, in order to enhance the stability of the entire pier structure and improve the safety of the pier, a connecting beam 24 is provided between the sleeves of the two movable legs 22 symmetrically arranged relative to the length direction of the pier body.

[0024] In this embodiment, a reinforcement tube 203 is further provided in the sleeve 201 , and a reinforcement column 204 which can be inserted into the reinforcement tube 203 is provided at the upper end of the inner column 202 to increase the structural stability of the fixed support leg 21 and the movable support leg 22 .

[0025] The U-turn device includes a turntable 31, a driving mechanism 32 and a gear transmission assembly connecting the turntable 31 and the driving mechanism 32, and the main beam 11 is provided with a switch for controlling the driving mechanism 32 near the turntable 31. The driving mechanism 32 is a rotary motor.

[0026] In practical applications, the sleeve 201 and the inner column 202 may be fixed by rivets or welding to achieve the purpose of the present invention.

[0027] The utility model provides a U-turn device on the trestle body. When a vehicle needs to turn around, it can be driven onto the trestle and turned by the U-turn device without affecting the passage of other vehicles, thereby greatly improving the efficiency of road use. At the same time, the trestle body can effectively support and stabilize the entire trestle structure through the support structure provided, ensuring its safety and reliability in various working environments. At the same time, the movable legs 22 provided can be easily transferred to a suitable position according to the terrain, so that the trestle can maintain a good balance state under different terrain conditions. In addition, the fixed legs 21 and the movable legs 22 are assembled with sleeves and inner columns 202, so that they can adapt to installation requirements of different heights, facilitate their production standardization, and make the trestle more widely applicable. Furthermore, the trestle adopts a two-way single-lane structure, which improves traffic efficiency and reduces waiting time.

[0028] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A trestle for turning vehicles in a tunnel, comprising a trestle body, a support structure for supporting the trestle body, a front approach bridge arranged at the front end of the trestle body, and a rear approach bridge arranged at the rear end of the trestle body, characterized in that: A U-turn device is embedded in the upper surface of the trestle body, and the supporting structure includes fixed legs and movable legs. The fixed legs are arranged at both ends of the trestle body, and the movable legs are arranged in the middle of the trestle body. The fixed legs and the movable legs both include sleeves and inner columns sleeved in the sleeves. The sleeves of the fixed legs are fixedly connected to the trestle body, and the sleeves of the movable legs are movable along the length direction of the trestle body through the walking device.

2. A trestle for turning vehicles in a tunnel according to claim 1, characterized in that: The trestle bridge body comprises main beams arranged on both sides, lower cross beams arranged between the two main beams, and a driving plate arranged on the lower cross beams. The fixed legs and movable legs are arranged on the main beams.

3. A trestle for turning vehicles in a tunnel according to claim 2, characterized in that: A connecting beam is provided between the sleeves of two movable legs which are symmetrically arranged relative to the length direction of the trestle main body.

4. A trestle for turning vehicles in a tunnel according to claim 3, characterized in that: The walking device includes an upper walking wheel fixed to the upper end of the sleeve of the movable support leg and a lower walking wheel arranged at the lower end of the sleeve of the movable support leg. The main beam is arranged between the upper walking wheel and the lower walking wheel, and the main beam is provided with a track for the upper walking wheel and the lower walking wheel to travel.

5. The trestle for turning vehicles in a tunnel according to claim 4, characterized in that: The sleeve and the inner column are fixed by high-strength bolts or rivets.

6. A trestle for turning vehicles in a tunnel according to claim 1, 2, 3, 4 or 5, characterized in that: The front approach bridge and the rear approach bridge are respectively hinged to the trestle body.

7. The trestle for vehicle U-turn in a tunnel according to claim 6, characterized in that: The U-turn device includes a turntable, a driving mechanism, and a gear transmission assembly connecting the turntable and the driving mechanism.

8. The trestle for vehicle U-turn in a tunnel according to claim 1, characterized in that: The main body of the trestle is a two-way single lane.

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