Illuminating vehicle used in cavern excavation
By rotating and connecting a hand-cranked lifting rod in the tunnel excavation lighting vehicle and equipping it with a retainer, combined with a bottom pipe structure and spring cable protection, the problem of tipping over due to the high center of gravity was solved, achieving stable movement on uneven ground and equipment protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- STATE GRID XINYUAN GRP CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-28
AI Technical Summary
Existing tunnel excavation lighting vehicles are heavy and have a high center of gravity, making them prone to tipping over on uneven ground, and their power supply and lighting systems are easily damaged.
The center of gravity is lowered by rotating the hand-cranked lifting rod to the mobile platform and equipping it with a retainer to prevent swaying; horizontal and vertical tubes are installed at the bottom to increase stability; a protective cover and spring cable protection are installed on the outside of the power supply system; and a torsion spring is used to assist the operation of the lifting rod.
This reduces the risk of lighting vehicles tipping over on uneven ground, lowers labor intensity, and improves mobility stability and equipment durability.
Smart Images

Figure CN224175097U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lighting vehicles, and in particular relates to a lighting vehicle used in tunnel excavation. Background Technology
[0002] The existing lighting vehicle structure includes a mobile platform with freely rotating wheels connected to it. A power supply system is installed on the top surface of the mobile platform, which can be a battery or a fuel generator. A vertical hand-cranked lifting rod is installed at the front of the power supply system. The lower end of the hand-cranked lifting rod is fixed to the mobile platform, and the upper end of the hand-cranked lifting rod is equipped with a lighting system connected to the power supply system. The lighting system can rotate to change the direction of light illumination.
[0003] Because the caverns are generally large, the required lighting power is also high, resulting in large lighting and power supply systems, and consequently, a heavy overall weight for the lighting vehicle. At the power plant construction site, many caverns are excavated successively, leading to frequent dispatching of the lighting vehicles. These vehicles often travel long distances, and during these moves, the hand-cranked lifting boom maintains a considerable length even when retracted. This places the weight of the lighting system on the upper part of the boom, resulting in a high center of gravity for the vehicle. Furthermore, the construction site is largely unpaved and has poor surface flatness, making the lighting vehicle prone to tipping over during movement. Utility Model Content
[0004] The purpose of this invention is to provide a lighting vehicle for use in tunnel excavation.
[0005] This invention has the advantage of being less prone to tipping over when traversing uneven ground.
[0006] The technical solution of this utility model is as follows: A lighting vehicle used in tunnel excavation includes a mobile platform. A power supply system is provided on the top surface of the mobile platform. A support rod fixed to the mobile platform is provided on the front side of the power supply system. A hand-cranked lifting rod is hinged to the upper end of the support rod. A locking mechanism is provided between the support rod and the hand-cranked lifting rod. A lighting system connected to the power supply system is provided at the upper end of the hand-cranked lifting rod. The lower end of the hand-cranked lifting rod is higher than the top of the power supply system. A U-shaped retainer is provided above the power supply system.
[0007] In the aforementioned lighting vehicle used in tunnel excavation, the lighting system is connected to the power supply system via a spring cable. A pipe is provided on one side of the hand-cranked lifting rod, which is connected to the pipe via a connecting rod, and the spring cable passes through the pipe.
[0008] In the aforementioned lighting vehicle used in tunnel excavation, the upper end of the support rod is provided with a lower bracket, the lower end of the hand-cranked lifting rod is provided with an upper bracket that is hinged to the lower bracket, and the locking mechanism is a bolt that connects the upper bracket and the lower bracket.
[0009] In the aforementioned lighting vehicle used in tunnel excavation, the bottom of the mobile platform is provided with multiple horizontal pipes, each containing a horizontal shaft. The outer end of the horizontal pipe is provided with a screw that tightens the horizontal shaft. The outer end of the horizontal shaft is provided with a vertical pipe, which contains a vertical shaft. A second screw that tightens the vertical shaft is provided on the vertical pipe.
[0010] In the aforementioned lighting vehicle used in tunnel excavation, a pad is provided at the lower end of the vertical shaft.
[0011] In the aforementioned lighting vehicle used in tunnel excavation, the power supply system is provided with a protective cover on the outside, and a retainer is fixed to the top of the protective cover.
[0012] Compared with existing technologies, this invention, based on existing lighting vehicles, sets the hand-cranked lifting rod to be rotatably connected to the mobile platform. When moving the lighting vehicle over long distances, the hand-cranked lifting rod is folded down, and a retainer is used to prevent it from swaying left and right during movement. This reduces the height of the lighting vehicle, lowers its center of gravity, and makes it less prone to tipping over when traversing uneven terrain. Therefore, this invention has the advantage of being less prone to tipping over when traversing uneven terrain.
[0013] Furthermore, by installing a pipe to protect the spring cable on one side of the hand-cranked lifting rod, the possibility of the spring cable being snagged and broken by other vehicles or tools inside the tunnel is reduced, thus reducing the failure rate.
[0014] By installing a torsion spring between the upper and lower supports, assistance is provided for workers to lower and raise the hand-cranked lifting rod, reducing labor intensity.
[0015] By setting multiple horizontal tubes at the bottom of the mobile platform, with a pull-out horizontal shaft inside each horizontal tube, and a vertical tube on the horizontal shaft, with a liftable vertical shaft inside the vertical tube, the lighting vehicle has a larger placement range and is placed more stably when placed on the ground. At the same time, it is small in size and easy to move during the movement process. Attached Figure Description
[0016] Figure 1 This is a front view schematic diagram of this utility model.
[0017] Figure 2 This is a frontal cross-sectional diagram of the upper and lower supports.
[0018] Figure 3 This is a schematic diagram of the left-side cross-section of the upper and lower supports.
[0019] Figure 4 This is a left-side view of the hand-cranked lifting lever.
[0020] Figure 5 This is a left-side view of the cage.
[0021] Figure 6 This is a schematic diagram showing the distribution of horizontal pipes at the bottom of the moving platform.
[0022] The labels in the attached diagram are as follows: 1-Mobile platform, 2-Power supply system, 3-Support rod, 4-Hand-cranked lifting rod, 5-Lighting system, 6-Cage, 7-Spring cable, 8-Pipe, 9-Connecting rod, 10-Lower support, 11-Upper support, 12-Bolt, 13-Horizontal pipe, 14-Horizontal shaft, 15-Screw, 16-Vertical pipe, 17-Vertical shaft, 18-Thrust handle, 19-Pad, 20-Guard cover, 21-Torsion spring, 22-Hinge shaft. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0024] Example: A lighting vehicle used in tunnel excavation, such as Figure 1 As shown, the system includes a mobile platform 1, with wheels connected to both sides in the width direction. A steering wheel is located at the front bottom of the mobile platform 1, and a power supply system 2 is located on the top surface of the mobile platform 1. Its features are as follows:
[0025] The front side of the power supply system 2 is provided with a support rod 3 fixed to the mobile platform 1. The upper end of the support rod 3 is provided with a lower bracket 10. Above the lower bracket 10 is a hand-cranked lifting rod 4. The lower end of the hand-cranked lifting rod 4 is provided with an upper bracket 11 hinged to the lower bracket 10. A bolt 12 is provided between the upper bracket 11 and the lower bracket 10.
[0026] The upper end of the hand-cranked lifting rod 4 is equipped with a lighting system 5, which uses a fuel generator. The lighting system 5 is connected to the power supply system 2 via a spring cable 7. The lighting system uses an LED light source. The lower end of the hand-cranked lifting rod 4 is higher than the top of the power supply system 2.
[0027] A pipe 8 is provided on one side of the hand-cranked lifting rod 4. The upper and lower ends of the pipe 8 are respectively close to the upper and lower ends of the outermost tube (fixed end) of the hand-cranked lifting rod 4. The outermost tube of the hand-cranked lifting rod 4 is connected to the pipe 8 through a connecting rod 9. The spring cable 7 passes through the pipe 8. The pipe 8 is connected to the outermost sleeve of the hand-cranked lifting rod 4. The pipe is used to protect the spring cable 7.
[0028] A torsion spring 21 is provided between the upper support 11 and the lower support 10. The torsion spring 21 is sleeved on the hinge shaft 22 between the upper support 11 and the lower support 10. One end of the torsion spring 21 is connected to the upper support 11, and the other end of the torsion spring 21 is connected to the lower support 10.
[0029] The bottom of the mobile platform 1 is provided with multiple horizontal tubes 13. The outer ends of the multiple horizontal tubes 13 are distributed along the outer contour of the mobile platform 1. A horizontal shaft 14 is provided inside the horizontal tube 13. A screw 15 is provided at the outer end of the horizontal tube 13 to tighten the horizontal shaft 14. A vertical tube 16 is provided at the outer end of the horizontal shaft 14. A vertical shaft 17 is provided inside the vertical tube 16. The vertical tube 16 and the vertical shaft 17 are screwed together. The upper and lower ends of the vertical shaft 17 are located on the upper and lower sides of the vertical tube 16, respectively. A throttle 18 is provided at the upper end of the vertical shaft 17.
[0030] The lower end of the vertical shaft 17 is provided with a pad 19, which is used to increase the contact area of the vertical shaft 17 with the ground and prevent it from sinking.
[0031] The power supply system 2 is provided with a non-fully enclosed protective cover 20 on the outside to ensure sufficient oxygen when the power supply system 2 is working. The top of the protective cover 20 is provided with a U-shaped retainer 6.
[0032] Instructions for use: When moving a long distance, use the throttle 18 to raise the vertical shaft 17 off the ground, loosen the screw 15, move the horizontal shaft 14 inward, and then tighten the screw 15 to reduce the size of the lighting vehicle. Unscrew the bolt 12, turn the hand-cranked lifting lever 4 downward, and let the hand-cranked lifting lever 4 enter the retainer 6. The retainer 6 prevents the hand-cranked lifting lever 4 from swaying left and right, lowering the height of the lighting vehicle and making it less likely to tip over during movement. When the hand-cranked lifting lever 4 is turned downward, the torsion spring 21 deforms, generating torque.
[0033] After the lighting vehicle is moved to the location, the horizontal axis 14 is moved outward to expand the placement range of the lighting vehicle and make it stable. The vertical axis 17 is lowered so that the pad 19 contacts the ground. The hand-cranked lifting rod 4 is raised and the bolt 12 is tightened. The height of the lighting system is changed by adjusting the lifting rod 4.
Claims
1. A lighting vehicle used in tunnel excavation, comprising a mobile platform (1), wherein a power supply system (2) is provided on the top surface of the mobile platform (1), characterized in that: The front side of the power supply system (2) is provided with a support rod (3) fixed to the mobile platform (1). The upper end of the support rod (3) is hinged with a hand-cranked lifting rod (4). A locking mechanism is provided between the support rod (3) and the hand-cranked lifting rod (4). The upper end of the hand-cranked lifting rod (4) is provided with a lighting system (5) connected to the power supply system (2). The lower end of the hand-cranked lifting rod (4) is higher than the top of the power supply system (2). A U-shaped retainer (6) is provided above the power supply system (2).
2. The lighting vehicle used in tunnel excavation according to claim 1, characterized in that: The lighting system (5) is connected to the power supply system (2) via a spring cable (7). A pipe (8) is provided on one side of the hand-cranked lifting rod (4). The hand-cranked lifting rod (4) is connected to the pipe (8) via a connecting rod (9). The spring cable (7) passes through the pipe (8).
3. The lighting vehicle used in tunnel excavation according to claim 1, characterized in that: The upper end of the support rod (3) is provided with a lower bracket (10), and the lower end of the hand-cranked lifting rod (4) is provided with an upper bracket (11) hinged to the lower bracket (10). The locking mechanism is a bolt (12) connecting the upper bracket (11) and the lower bracket (10).
4. The lighting vehicle used in tunnel excavation according to claim 3, characterized in that: A torsion spring (21) is provided between the upper support (11) and the lower support (10).
5. The lighting vehicle used in tunnel excavation according to claim 3, characterized in that: The bottom of the mobile platform (1) is provided with multiple horizontal tubes (13), and a horizontal shaft (14) is provided inside the horizontal tubes (13). A screw (15) is provided at the outer end of the horizontal tubes (13) to tighten the horizontal shaft (14). A vertical tube (16) is provided at the outer end of the horizontal shaft (14). A vertical shaft (17) is provided inside the vertical tube (16). The vertical tube (16) and the vertical shaft (17) are screwed together. The upper and lower ends of the vertical shaft (17) are located on the upper and lower sides of the vertical tube (16), respectively. A throttle (18) is provided at the upper end of the vertical shaft (17).
6. The lighting vehicle used in tunnel excavation according to claim 5, characterized in that: The lower end of the vertical shaft (17) is provided with a pad (19).
7. The lighting vehicle used in tunnel excavation according to claim 1, characterized in that: The power supply system (2) is provided with a protective cover (20) on the outside, and the retainer (6) is fixed to the top of the protective cover (20).