Ladder truck special for tunnel lighting construction

Abstract

The special ladder truck for tunnel lighting construction comprises a driving chassis, driving wheels are installed on the driving chassis, a shear type lifting mechanism is arranged at the upper end of the driving chassis, and a horizontal supporting plate is arranged at the upper end of the shear type lifting mechanism; the upper end of the horizontal supporting plate is rotationally connected with a rotating top plate, a rotating hole is formed in the middle of the horizontal supporting plate, a rotating shaft rotationally connected with the rotating hole is arranged at the lower end of the rotating top plate, and a transmission gear is arranged at the free end of the rotating shaft. A telescopic shaft of the rotary driving hydraulic rod is connected with a driving rack meshed with the transmission gear; side edge supporting plates are arranged on the two sides of the rotating top plate, the lower side of each side edge supporting plate is slidably connected with a telescopic sliding plate, and each side edge supporting plate is provided with a telescopic driving hydraulic rod used for driving the corresponding telescopic sliding plate to slide. The lifting device can flexibly move and operate in a narrow space, and has the functions of vertical lifting and multi-angle adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction equipment, in particular to a special ladder vehicle for tunnel lighting construction. Background Art

[0002] During tunnel lighting construction, lighting installation, wiring, and equipment maintenance are often required at the top of the tunnel or in higher areas. Therefore, the use of aerial work equipment has become an indispensable part of the construction process. Currently, commonly used equipment includes aerial work vehicles and lift trucks. These devices are widely used outdoors or in spacious spaces, but they have many limitations in special environments such as tunnels.

[0003] Existing aerial work platforms often utilize telescopic or folding arms. While these structures can operate within a certain height range, their lifting process typically involves an inclined ascent, preventing vertical lift, and they require a large operating space. Within tunnels, space constraints often make it difficult to deploy the arms, limiting operational requirements and impacting construction efficiency and safety. Furthermore, some aerial work platforms are large and lack maneuverability, making them difficult to navigate within narrow tunnel passages, further complicating construction efforts.

[0004] On the other hand, although some existing vertical lift vehicles can realize the lifting function in the vertical direction and have a relatively compact structure, which is suitable for environments with limited space, they usually only have a single vertical lifting capability and lack functions such as horizontal adjustment or rotation. They cannot flexibly adjust the operating angle and position according to the actual needs of the construction site. Therefore, when faced with the complex lighting requirements on the top of the tunnel, there are still problems such as inconvenient operation and low construction efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a special ladder truck for tunnel lighting construction, which can move and operate flexibly in a small space, and has vertical lifting and multi-angle adjustment functions, which helps to improve construction convenience.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A special ladder vehicle for tunnel lighting construction, comprising a drive chassis, at least four drive wheels mounted on the drive chassis, a scissor lift mechanism disposed at the upper end of the drive chassis, a horizontal support plate disposed at the upper end of the scissor lift mechanism, and a lifting drive hydraulic rod mounted at the upper end of the drive chassis for driving the scissor lift mechanism to move upward and downward; The upper end of the horizontal support plate is rotatably connected to a rotating top plate, a rotating hole is opened in the middle of the horizontal support plate, a rotating shaft rotatably connected to the rotating hole is provided at the lower end of the rotating top plate, a transmission gear is provided at the free end of the rotating shaft, a rotating driving hydraulic rod arranged toward the transmission gear is installed on the lower side of the horizontal support plate, and a telescopic shaft of the rotating driving hydraulic rod is connected to a driving rack meshing with the transmission gear; Both sides of the rotating top plate are provided with side support plates whose length extends to the edge of the horizontal support plate. A telescopic gap is left between the lower side of each side support plate and the upper side of the horizontal support plate. The lower side of each side support plate is slidably connected with a telescopic slide that can slide away from the rotating top plate. Each side support plate is installed with a telescopic drive hydraulic rod for driving the corresponding telescopic slide to slide.

[0007] By adopting the above technical solution, when carrying out tunnel lighting construction, first control the driving chassis to move the ladder car to the required construction position in the tunnel, and the workers go up to the rotating top plate, and drive the scissor lift mechanism to rise through the lifting and lowering driving hydraulic rod. After reaching the appropriate height, lighting construction can be carried out. During the construction process, if rotation direction construction is required, the rotating driving hydraulic rod is extended to drive the transmission gear to rotate through the driving rack, thereby driving the rotating top plate to rotate, and the workers can move to the side support plate to carry out construction. If the length needs to be extended for construction, the telescopic driving hydraulic rod is extended to drive the telescopic slide plate to extend outward, thereby increasing the length of the working surface and facilitating construction. After the construction is completed, the telescopic slide plate and the rotating top plate are driven to reset, and the horizontal support plate is driven to lower and reset through the scissor lift mechanism.

[0008] The present invention is further configured as follows: each foot of the driving chassis is provided with a support frame, each support frame is installed with a vertically arranged hydraulic support rod, the telescopic axis of each hydraulic support rod is downward and is provided with a support gasket.

[0009] The present invention is further configured as follows: a level sensor is provided at the upper end of the driving chassis.

[0010] The present invention is further configured as follows: the edge of each side support plate is provided with a U-shaped guardrail with an opening toward the rotating top plate, and the rotating top plate is provided with a straight-line guardrail on both sides perpendicular to the U-shaped guardrail, wherein one of the straight-line guardrails has an entrance and exit between the two U-shaped guardrails.

[0011] The present invention is further configured as follows: each telescopic drive hydraulic rod is installed on the upper side of the corresponding side support plate, the lower part of each U-shaped guardrail is provided with a connecting piece that cooperates with the corresponding telescopic drive hydraulic rod, and the free end of the telescopic shaft of each telescopic drive hydraulic rod is connected to the corresponding connecting piece.

[0012] The present invention is further configured as follows: a connecting slide rail is provided on the lower side of each side support plate away from the rotating top plate, and a slide bar is provided on the upper side of each telescopic slide bar that is slidably connected to the corresponding connecting slide rail in a one-to-one correspondence.

[0013] The present invention is further configured as follows: a limiting slide rail for sliding the driving rack is provided on the lower side of the horizontal support plate.

[0014] In summary, the present invention has the following beneficial effects: the ladder car of the present invention is lifted vertically by a scissor-type lifting mechanism, is smaller in size and does not occupy surrounding space during lifting, meeting the requirements of lifting in small tunnel spaces, and the construction platform on the ladder car of the present invention can be freely rotated as needed, and the construction platform can be extended and retracted as needed, and flexible construction adjustments can be made without moving the ladder car to improve construction convenience and safety, thereby meeting the flexible needs of tunnel lighting projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Used to demonstrate the connection between the horizontal support plate, rotating top plate and telescopic slide plate; Figure 3 The lower structure used to temporarily rotate the top plate and side support plates; Figure 4 Used to show the lower structure of the horizontal support plate; Figure 5 Used to demonstrate the overall structure of the telescopic skateboard.

[0016] In the figure: 1. Driving chassis; 11. Driving wheel; 12. Hub motor; 13. Support frame; 2. Scissor lift mechanism; 21. Lifting drive hydraulic rod; 3. Hydraulic support rod; 31. Support gasket; 32. Level sensor; 4. Horizontal support plate; 41. Turntable; 42. Rotating drive hydraulic rod; 43. Driving rack; 44. Limiting slide rail; 5. Rotating top plate; 51. Transmission gear; 52. Side support plate; 53. Connecting slide rail; 54. I-shaped guardrail; 55. Inlet and outlet; 6. Telescopic slide plate; 61. Slide bar; 62. U-shaped guardrail; 63. Connecting piece; 7. Telescopic drive hydraulic rod. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0019] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0020] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, indirect connections via an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0021] Example, see Figure 1-5 A special ladder truck for tunnel lighting construction includes a drive chassis 1. The drive chassis 1 is equipped with four drive wheels 11. Each drive wheel 11 is equipped with a hub motor 12. The four drive wheels 11 can cooperate to drive the drive chassis 1 to move and steer. Two scissor lift mechanisms 2 are provided at the upper end of the drive chassis 1. The upper end of the scissor lift mechanism 2 is provided with a horizontal support plate 4. The upper end of the drive chassis 1 is equipped with a lifting drive hydraulic rod 21 for driving the scissor lift mechanism 2 to rise and fall. Each foot of the drive chassis 1 is provided with a support frame 13. Each support frame 13 is equipped with a vertically arranged hydraulic support rod 3. The telescopic axis of each hydraulic support rod 3 is downwardly facing and is provided with a support gasket 31. A level sensor 32 is provided at the upper end of the drive chassis 1. When in use, the hydraulic support rod 3 is used to prop up the drive chassis 1 so that the drive wheels 11 are off the ground. The level sensor 32 can determine whether the drive chassis 1 is level, facilitating adjustment.

[0022] The upper end of the horizontal support plate 4 is rotatably connected to a rotating top plate 5, and a rotating hole 41 is opened in the middle of the horizontal support plate 4. The lower end of the rotating top plate 5 is provided with a rotating shaft (omitted in the figure) rotatably connected to the rotating hole 41, and the free end of the rotating shaft is provided with a transmission gear 51. The lower side of the horizontal support plate 4 is installed with a rotating drive hydraulic rod 42 arranged toward the transmission gear 51, and the telescopic shaft of the rotating drive hydraulic rod 42 is connected with a driving rack 43 meshing with the transmission gear 51. The lower side of the horizontal support plate 4 is provided with a limiting slide rail 44 for sliding the driving rack 43. The rotating drive hydraulic rod 42 telescopically drives the driving rack 43 to move, so that the rotating top plate 5 can be driven to rotate through the transmission gear 51.

[0023] Each side of the rotating top plate 5 is provided with a side support plate 52 whose length extends to the edge of the horizontal support plate 4. A telescopic gap is left between the lower side of each side support plate 52 and the upper side of the horizontal support plate 4. The lower side of each side support plate 52 is slidably connected to a telescopic slide 6 that can slide away from the rotating top plate 5. The lower side of each side support plate 52 is provided with two connecting slide rails 53 that are arranged in a direction away from the rotating top plate 5. The upper side of each telescopic slide 6 is provided with two slide bars 61 that are slidably connected to the corresponding connecting slide rails 53. The edge of each side support plate 52 is provided with a U-shaped guardrail 62 with an opening facing the rotating top plate 5. The rotating top plate 5 is provided with a straight-line guardrail 54 on both sides of the vertical U-shaped guardrail 62. One of the straight-line guardrails 54 has an entrance and exit 55 between the two U-shaped guardrails 62. A telescopic driving hydraulic rod 7 for driving the corresponding telescopic slide 6 to slide is installed on the upper side of each side support plate 52, and a connecting piece 63 that cooperates with the corresponding telescopic driving hydraulic rod 7 is provided at the lower part of each U-shaped guardrail 62, and the free end of the telescopic shaft of each telescopic driving hydraulic rod 7 is connected to the corresponding connecting piece 63.

[0024] Usage: When performing tunnel lighting construction, first control the driving chassis 1 to move the ladder car to the required construction position in the tunnel, control the four hydraulic support rods 3 to extend downward to support the ground, prop up the driving chassis 1 to make the driving wheel 11 off the ground, and use the level sensor 32 to determine whether the driving chassis 1 is level. If it is not level, the four hydraulic support rods 3 are telescopically adjusted to finally keep it level, making the lifting process more stable.

[0025] After completing the horizontal adjustment, the worker goes up to the rotating top plate 5 and drives the scissor-type lifting mechanism 2 to rise through the lifting and driving hydraulic rod 21. When the lighting construction is reached, the lighting construction can be carried out. During the construction process, if the rotation direction construction is required, the rotation driving hydraulic rod 42 is extended to drive the transmission gear 51 to rotate through the driving rack 43, thereby driving the rotating top plate 5 to rotate, and the workers can move to the side support plate 52 for construction. If the length construction needs to be extended, the telescopic driving hydraulic rod 7 is extended to drive the telescopic slide 6 to extend outward, thereby increasing the length of the working surface and facilitating construction. After the construction is completed, the telescopic slide 6 and the rotating top plate 5 are driven to reset, and the horizontal support plate 4 is driven to descend and reset through the scissor-type lifting mechanism 2.

[0026] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A special ladder vehicle for tunnel lighting construction, comprising a driving chassis (1), wherein at least four driving wheels (11) are mounted on the driving chassis (1), and characterized in that: A scissor-type lifting mechanism (2) is provided at the upper end of the driving chassis (1), a horizontal support plate (4) is provided at the upper end of the scissor-type lifting mechanism (2), and a lifting driving hydraulic rod (21) for driving the scissor-type lifting mechanism (2) to lift and lower is installed at the upper end of the driving chassis (1); The upper end of the horizontal support plate (4) is rotatably connected to a rotating top plate (5), a rotating hole (41) is provided in the middle of the horizontal support plate (4), a rotating shaft rotatably connected to the rotating hole (41) is provided at the lower end of the rotating top plate (5), a transmission gear (51) is provided at the free end of the rotating shaft, a rotating driving hydraulic rod (42) arranged toward the transmission gear (51) is installed on the lower side of the horizontal support plate (4), and a telescopic shaft of the rotating driving hydraulic rod (42) is connected to a driving rack (43) meshing with the transmission gear (51); Both sides of the rotating top plate (5) are provided with side support plates (52) whose length extends to the edge of the horizontal support plate (4), and a telescopic gap is left between the lower side of each side support plate (52) and the upper side of the horizontal support plate (4). The lower side of each side support plate (52) is slidably connected to a telescopic slide plate (6) that can slide away from the rotating top plate (5), and each side support plate (52) is installed with a telescopic driving hydraulic rod (7) for driving the corresponding telescopic slide plate (6) to slide.

2. A special ladder truck for tunnel lighting construction according to claim 1, characterized in that: Each foot of the driving chassis (1) is provided with a support frame (13), each support frame (13) is installed with a vertically arranged hydraulic support rod (3), and the telescopic axis of each hydraulic support rod (3) is downwardly directed and is provided with a support gasket (31).

3. The special ladder truck for tunnel lighting construction according to claim 2, characterized in that: A level sensor (32) is provided at the upper end of the driving chassis (1).

4. The special ladder truck for tunnel lighting construction according to claim 1, characterized in that: The edge of each side support plate (52) is provided with a U-shaped guardrail (62) with an opening facing the rotating top plate (5), and the rotating top plate (5) is provided with a straight-line guardrail (54) on both sides perpendicular to the U-shaped guardrail (62), wherein one straight-line guardrail (54) is provided with an entrance and exit (55) between the two U-shaped guardrails (62).

5. The special ladder truck for tunnel lighting construction according to claim 2, characterized in that: Each telescopic driving hydraulic rod (7) is mounted on the upper side of the corresponding side support plate (52), and the lower part of each U-shaped guardrail (62) is provided with a connecting piece (63) that matches the corresponding telescopic driving hydraulic rod (7), and the free end of the telescopic shaft of each telescopic driving hydraulic rod (7) is connected to the corresponding connecting piece (63).

6. The special ladder truck for tunnel lighting construction according to claim 1, characterized in that: The lower side of each side support plate (52) is provided with a connecting slide rail (53) arranged in a direction away from the rotating top plate (5), and the upper side of each telescopic slide plate (6) is provided with a slide bar (61) that is slidably connected to the corresponding connecting slide rail (53) in a one-to-one correspondence.

7. The special ladder truck for tunnel lighting construction according to claim 1, characterized in that: A limiting slide rail (44) for the driving rack (43) to slide is provided on the lower side of the horizontal support plate (4).

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