A mobile support for tunnel construction lighting
By designing a mobile support system that integrates with engineering vehicles and utilizing a mechanical linkage mechanism to achieve height adjustment and stability of tunnel construction lighting, the problem of existing equipment being unable to flexibly adapt to dynamic construction surfaces is solved, providing an efficient and safe dynamic lighting solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC (GUIZHOU) CONSTR INVESTMENT DEV CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-05-29
AI Technical Summary
Existing tunnel construction lighting equipment cannot flexibly adapt to dynamic construction faces. Fixed lamps cannot cover moving areas, while simple mobile supports have poor coordination with construction equipment and low moving efficiency.
A mobile support was designed, which is combined with an engineering vehicle through a base and uses a mechanical linkage mechanism to achieve height adjustment and stability of the lighting device. The support includes components such as a support plate, slide groove, slider, connecting plate, gear ring and synchronous wheel, so as to achieve one-button height adjustment and stable support.
It enables coordinated movement of lighting devices and engineering vehicles, providing an efficient and flexible dynamic lighting solution and reducing safety risks for construction workers.
Smart Images
Figure CN224301987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tunnel construction support, and in particular to a mobile support for tunnel construction lighting. Background Technology
[0002] With the rapid development of transportation infrastructure construction, the scale and complexity of tunnel engineering (such as highways, railways, and urban subways) continue to increase. The tunnel construction environment is characterized by strong spatial enclosure, dynamic changes in the work face, and high safety risks. During construction, the work areas for different processes such as excavation, support, and lining need to be frequently moved. The light inside the tunnel is extremely weak (natural light is almost impossible to penetrate), and there are many interfering factors such as dust, water vapor, and vibration. This places extremely high demands on the "flexibility" and "reliability" of construction lighting. In complex processes (such as face excavation and small machinery operations), construction workers often need to adjust their positions around fixed lighting fixtures or rely on manually holding the lighting equipment, which not only affects work efficiency but also increases safety hazards (such as the risk of collision and electric shock). Therefore, a mobile support for tunnel construction lighting is needed.
[0003] Existing mobile supports for tunnel construction lighting rely on fixed lighting fixtures (such as wall-mounted lights) or simple mobile supports (such as ground-mounted trolley supports). However, the former can only cover a fixed area and cannot meet the lighting needs of dynamic construction surfaces, while the latter, although mobile, generally suffers from poor coordination with construction equipment and low mobility.
[0004] To address the aforementioned issues, a search revealed a patent with publication number CN222864846U that discloses a mobile support for tunnel construction lighting. The patent states that "by increasing the contact area with the ground through the X-shaped base, the stability during operation is improved. When it is necessary to raise or lower the lighting lamp to a higher position, the position can be adjusted by adjusting the adjustment wheels at the bottom of the X-shaped base, thereby increasing the stability of the X-shaped base and avoiding the risk of tipping over due to the increased center of gravity." Although the base can be moved, it requires constant pushing during tunnel construction and coordination with construction equipment or personnel, resulting in poor coordination.
[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0006] The purpose of this utility model is to provide a mobile support for tunnel construction lighting, in order to solve the problems mentioned in the background art regarding existing mobile supports for tunnel construction lighting. Traditional tunnel lighting mostly relies on fixed lamps (such as wall-embedded lamps) or simple mobile supports (such as ground-trolley supports). However, the former can only cover a fixed area and cannot meet the lighting needs of dynamic construction surfaces. The latter, although mobile, generally suffers from poor coordination with construction equipment and low mobility.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a mobile support for tunnel construction lighting, comprising a base, a column fixedly mounted on the upper surface of the base, a support plate fixedly fitted around the outer ring of the column, a base plate fitted at one end of the column, a guardrail fixedly mounted on the upper surface of the base plate, grooves formed on both sides of the support plate, a slider slidably connected to one end of each groove, supports distributed crosswise on both sides of the support plate, a first sliding plate slidably connected to one side of one set of supports, a first connecting plate rotatably connected to one side of the first sliding plate, a rack fixedly mounted on one side of the first connecting plate, a second sliding plate slidably connected to one side of another set of supports, a second connecting plate rotatably connected to one side of the second sliding plate, a connecting rod rotatably connected through and piercing the surface of the base plate, a gear ring fixedly fitted around the outer ring of one end of the connecting rod, a first synchronous pulley fixedly fitted around the outer ring of the other end of the connecting rod, a synchronous belt fitted around the outer ring of the first synchronous pulley, a rotatable operating rod mounted on the upper surface of the base plate, and a second synchronous pulley fixedly fitted around the outer ring of the operating rod.
[0008] Preferably, a support column for reinforcing the support plate is fixedly installed on the upper surface of the base, and a slidable guide sleeve is provided at the connection between the base plate and the column.
[0009] Preferably, one end of the bracket is rotatably connected to the slider, and the other end of the bracket is rotatably connected to a fixed seat, which is fixedly connected to the lower surface of the base plate.
[0010] Preferably, limit plates are fixedly installed on both the upper and lower sides of the first connecting plate, and limit grooves are formed on the upper and lower surfaces of the second connecting plate, with the limit plates fitting against the surfaces of the limit grooves.
[0011] Preferably, one side of the gear ring passes through the second connecting plate and meshes with the rack.
[0012] Preferably, the operating lever is distributed parallel to the connecting rods on both sides, and two sets of the second synchronous pulley are provided.
[0013] Preferably, the upper end of the column may be provided with a top mount for mounting a lighting device, and the lower surface of the base is threaded with replaceable support feet.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the mobile support for tunnel construction lighting can be integrated with engineering vehicles, such as loaders, pickup trucks, and special construction vehicles. By installing the lighting support on a mobile vehicle, coupled with the flexible adjustment of the support and the guardrails for construction workers to stand on, construction workers can always be illuminated during the construction process, providing a dynamic lighting solution for tunnel construction that is "mobile with the vehicle, provides precise coverage, and offers efficient response". Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;
[0016] Figure 2 This is a schematic diagram of the cooperation structure between the support plate and the bracket of this utility model;
[0017] Figure 3 This is a schematic diagram of the gear and rack meshing structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure in which the first connecting plate and the second connecting plate of this utility model cooperate with each other.
[0019] In the diagram: 1. Base; 2. Column; 3. Support plate; 4. Support column; 5. Guide sleeve; 6. Base plate; 7. Guardrail; 8. Slide groove; 9. Slider; 10. Bracket; 11. Fixed seat; 12. First sliding plate; 13. First connecting plate; 14. Limiting plate; 15. Rack; 16. Second sliding plate; 17. Second connecting plate; 18. Limiting groove; 19. Connecting rod; 20. Gear ring; 21. First synchronous pulley; 22. Synchronous belt; 23. Operating lever; 24. Second synchronous pulley. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4This utility model provides a technical solution: a mobile support for tunnel construction lighting, including a base 1, a column 2 fixedly installed on the upper surface of the base 1, a support plate 3 fixedly fitted around the outer ring of the column 2, a base plate 6 fitted at one end of the column 2, a guardrail 7 fixedly installed on the upper surface of the base plate 6, grooves 8 on both sides of the support plate 3, a slider 9 slidably connected to one end of the groove 8, and brackets 10 distributed crosswise on both sides of the support plate 3, one side of one set of brackets 10 being slidably connected to a first sliding plate 12, and one side of the first sliding plate 12 being rotatably connected to a first connecting plate 13. A rack 15 is fixedly installed on one side of the first connecting plate 13. A second sliding plate 16 is slidably connected to one side of another set of brackets 10. A second connecting plate 17 is rotatably connected to one side of the second sliding plate 16. A connecting rod 19 is rotatably connected through the surface of the base plate 6. A gear ring 20 is fixedly fitted on the outer ring of one end of the connecting rod 19. A first synchronous pulley 21 is fixedly fitted on the outer ring of the other end of the connecting rod 19. A synchronous belt 22 is fitted on the outer ring of the first synchronous pulley 21. A rotatable operating rod 23 is installed on the upper surface of the base plate 6. A second synchronous pulley 24 is fixedly fitted on the outer ring of the operating rod 23.
[0022] Furthermore, a support column 4 for reinforcing the support plate 3 is fixedly installed on the upper surface of the base 1. A sliding guide sleeve 5 is provided at the connection between the base plate 6 and the column 2. Through the setting of the support column 4 and the guide sleeve 5, the support column 4 fixedly installed on the upper surface of the base 1 is welded from high-strength steel and forms a stable structure with the support plate 3. The guide sleeve 5 is made of self-lubricating copper alloy and has ball grooves inside, which reduces the frictional resistance when the base plate 6 moves up and down along the column 2. At the same time, the precise fit between the guide sleeve 5 and the column 2 (gap ≤ 0.5mm) ensures that there is no shaking during the lifting process.
[0023] Furthermore, one end of the bracket 10 is rotatably connected to the slider 9, and the other end of the bracket 10 is rotatably connected to the fixed seat 11, which is fixedly connected to the lower surface of the base plate 6. Through the setting of the bracket 10, the bracket 10 forms a two-degree-of-freedom hinge with the slider 9 and the fixed seat 11 through a universal joint. When the slider 9 moves in the slide groove 8, the bracket 10 can simultaneously achieve extension and angle adjustment. Its unique three-point linkage design ensures that the lifting trajectory of the base plate 6 always remains vertical, avoiding the common problem of off-center loading and jamming in traditional scissor lift mechanisms.
[0024] Furthermore, limit plates 14 are fixedly installed on both the upper and lower sides of the first connecting plate 13, and limit grooves 18 are opened on the upper and lower surfaces of the second connecting plate 17. The limit plates 14 and the limit grooves 18 are in contact with each other. Through the setting of the limit plates 14 and the limit grooves 18, the limit plates 14 and the limit grooves 18 are made of hardened steel and are interlocked to form a mechanical hard limit structure. When the first connecting plate 13 and the second connecting plate 17 move relative to each other, this design can withstand an impact load of more than 200 kg.
[0025] Furthermore, one side of the gear ring 20 passes through the second connecting plate 17 and meshes with the rack 15. Through the arrangement of the gear ring 20 and the rack 15, the meshing gap between the rack 15 and the gear ring 20 is controlled within the range of 0.1 to 0.3 mm to ensure transmission accuracy.
[0026] Furthermore, the operating lever 23 is parallel to the connecting rods 19 on both sides, and two sets of second synchronous pulleys 24 are provided. When the operating lever 23 rotates, it drives the two sets of second synchronous pulleys 24 on the outer ring to rotate. The rotation of the second synchronous pulleys 24 drives the synchronous belts 22 on both sides to rotate. The synchronous belts 22 drive the first synchronous pulley 21 and the connecting rod 19 to rotate. The connecting rod 19 drives the gear ring 20 to rotate. The rotation of the gear ring 20 drives the rack 15 to move. When the rack 15 moves, it causes the first connecting plate 13 and the second connecting plate 17 to slide open or close. The first connecting plate 13 and the second connecting plate 17 are rotatably connected to the first sliding plate 12 and the second sliding plate 16. The first sliding plate 12 and the second sliding plate 16 will slide on one side of the bracket 10 according to the sliding of the first connecting plate 13 and the second connecting plate 17. The bracket 10 will also expand or contract as the first sliding plate 12 and the second sliding plate 16 slide to different positions. The bracket 10 can control the lifting and lowering adjustment of the base plate 6.
[0027] Furthermore, the upper end of the column 2 can be provided with a top mount for installing a lighting device, and the lower surface of the base 1 is threaded with a replaceable support foot. Through the setting of the base 1, the support foot on the lower surface of the base 1 can be provided with mounting holes for fixing to the engineering vehicle. The upper end of the column 2 can be equipped with a lighting lamp for construction lighting.
[0028] Working principle: First, the base 1 is fixedly installed on the engineering vehicle. The column 2, as the core support structure, is vertically fixed on the base 1. When the lighting height needs to be adjusted, the operator rotates the operating lever 23, which drives the two sets of second synchronous pulleys 24 on its outer ring to rotate. Through the synchronous belt 22, the first synchronous pulleys 21 on both sides rotate synchronously. The connecting rod 19 rotates accordingly and drives the gear ring 20 to rotate. The gear ring 20 meshes with the rack 15 on the first connecting plate 13, causing the first connecting plate 13 and the second connecting plate 17 to slide relative to each other. At this time, the first sliding plate 12 and the second sliding plate 17... The 6 slides on two sets of cross-distributed supports 10, causing the supports 10 to extend and retract around the fixed seat 11 and the slider 9 as fulcrums. The slider 9 moves along the grooves 8 on both sides of the support plate 3. Through the linkage of the supports 10, the base plate 6 is pushed up and down along the column 2, and finally the top lighting device is driven to reach the target height. The guardrail 7 provides a safe working platform for construction personnel. The support structure composed of the support column 4 and the support plate 3 ensures the overall stability. The whole system realizes the coordinated movement of the lighting device and the engineering vehicle. The mechanical linkage mechanism completes one-button height adjustment to meet the dynamic lighting needs in tunnel construction.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A movable support for tunnel construction lighting, comprising a base (1), characterized in that: A column (2) is fixedly installed on the upper surface of the base (1). A support plate (3) is fixedly fitted around the outer ring of the column (2). A base plate (6) is fitted on one end of the column (2). A guardrail (7) is fixedly installed on the upper surface of the base plate (6). Slide grooves (8) are provided on both sides of the support plate (3). A slider (9) is slidably connected to one end of the slide groove (8). Brackets (10) are distributed crosswise on both sides of the support plate (3). A first sliding plate (12) is slidably connected to one side of one set of brackets (10). A first connecting plate (13) is rotatably connected to one side of the first sliding plate (12). One side of the first connecting plate (13) is fixed. A rack (15) is installed, and a second sliding plate (16) is slidably connected to one side of another set of brackets (10). A second connecting plate (17) is rotatably connected to one side of the second sliding plate (16). A connecting rod (19) is rotatably connected through the surface of the base plate (6). A gear ring (20) is fixedly fitted on the outer ring of one end of the connecting rod (19). A first synchronous pulley (21) is fixedly fitted on the outer ring of the other end of the connecting rod (19). A synchronous belt (22) is fitted on the outer ring of the first synchronous pulley (21). A rotatable operating rod (23) is installed on the upper surface of the base plate (6). A second synchronous pulley (24) is fixedly fitted on the outer ring of the operating rod (23).
2. A movable support for tunnel construction lighting according to claim 1, characterized in that: The upper surface of the base (1) is fixedly installed with a support column (4) for reinforcing the support plate (3), and a sliding guide sleeve (5) is provided at the connection between the base plate (6) and the column (2).
3. A movable support for tunnel construction lighting according to claim 1, characterized in that: One end of the bracket (10) is rotatably connected to the slider (9), and the other end of the bracket (10) is rotatably connected to the fixed seat (11), and the fixed seat (11) is fixedly connected to the lower surface of the base plate (6).
4. A movable support for tunnel construction lighting according to claim 1, characterized in that: Limiting plates (14) are fixedly installed on both the upper and lower sides of the first connecting plate (13), and limiting grooves (18) are opened on the upper and lower surfaces of the second connecting plate (17). The limiting plates (14) are in contact with the surfaces of the limiting grooves (18).
5. A movable support for tunnel construction lighting according to claim 1, characterized in that: One side of the gear ring (20) passes through the second connecting plate (17) and meshes with the rack (15).
6. A movable support for tunnel construction lighting according to claim 1, characterized in that: The operating lever (23) is distributed parallel to the connecting rods (19) on both sides, and the second synchronous pulley (24) is provided in two sets.
7. A movable support for tunnel construction lighting according to claim 1, characterized in that: The upper end of the column (2) can be provided with a top seat for installing a lighting device, and the lower surface of the base (1) is threaded with a replaceable support foot.