Supporting device for road, bridge and tunnel construction
By using a lifting mechanism and a spring push rod structure as a support device, the problems of large size, complex installation, and poor adaptability in the existing technology are solved, and the support device can be flexibly adjusted and its stability enhanced in complex terrain and confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-06
AI Technical Summary
Existing road, bridge and tunnel construction support devices are large in size, complex to install, inconvenient to adjust and have poor adaptability, making it difficult to meet construction needs in complex terrain or confined spaces.
The system employs a lifting mechanism and a spring push rod structure. The height of the support plate is adjusted by a threaded rod driven by a servo motor, and the spring provides additional support force to increase stability. The support device includes a base, a support rod, a movable sleeve, a lifting mechanism, and an outer support seat.
It enables flexible adjustment of the support device at different heights and in complex terrains, improving the stability and adaptability of the equipment and simplifying the installation process.
Smart Images

Figure CN223975145U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road, bridge and tunnel construction technology, and in particular to a support device for road, bridge and tunnel construction. Background Technology
[0002] Road, bridge, and tunnel construction refers to the process of building and renovating transportation infrastructure such as roads, bridges, and tunnels. Road construction includes road planning, design, land acquisition and demolition, earthwork, roadbed and pavement engineering, drainage engineering, and ancillary facilities engineering. Various construction machinery and equipment, such as excavators, bulldozers, road rollers, and pavers, are required during the construction process.
[0003] Utility model patent application number CN202420598123.9 discloses a support device for road, bridge, and tunnel construction, including a traveling base. A mounting frame is fixedly connected to one side of the traveling base, and a rotating frame is fixedly connected to the side of the mounting frame away from the traveling base. Multiple equally spaced rotating slots are provided on one side of the rotating frame, and swing frames are rotatably connected to each of the multiple rotating slots. Lifting hydraulic rods are fixedly connected to the side of the swing frames away from the mounting frame, and a top plate is fixedly connected to the telescopic ends of the multiple lifting hydraulic rods. Multiple equally spaced adjustment slots are provided on the side of the top plate away from the mounting frame. This utility model, through the adjustment of the support angle of the support frame by the swing frame, combined with the movement of the support frame on the top plate, enables convenient adjustment of the support direction and position when providing support to structural points within the tunnel, avoiding the problem of the subsequent fixation of the structural points being affected by the support.
[0004] However, the aforementioned utility models are large in size, complex to install, inconvenient to adjust, and have poor adaptability, often failing to meet construction requirements when used in complex terrain or confined spaces. Therefore, a support device for road, bridge, and tunnel construction is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a support device for road, bridge and tunnel construction, which solves the problems mentioned in the background art.
[0006] This utility model is implemented as follows: a support device for road, bridge and tunnel construction includes a base, a support rod on the base, a hollow top end of the support rod with a movable slot and a limiting rod, a movable sleeve on the limiting rod, a support plate at the top end of the movable sleeve, an installation sleeve on the support rod, and a lifting mechanism on the installation sleeve, the top end of the lifting mechanism being connected to the movable sleeve.
[0007] A further technical solution of this utility model is: the mounting sleeve includes a connecting plate and a sliding groove disposed at its top end.
[0008] A further technical solution of this utility model is: the connecting plate is provided with an outer support seat, the outer support seat is provided with a spring and a push rod inside, the top end of the push rod is fixedly connected to the bottom end of the movable sleeve, and the bottom end of the push rod is placed inside the outer support seat and is slidably connected to the outer support seat.
[0009] A further technical solution of this utility model is: the lifting mechanism includes: a support frame disposed at the bottom end of the mounting sleeve, a servo motor disposed on the support frame, a coupling disposed at the output end of the servo motor, a threaded rod disposed on the coupling, a movable plate disposed in the slide groove, a connecting rod disposed on the movable plate, and a threaded sleeve disposed on the movable plate.
[0010] A further technical solution of this utility model is: the top end of the threaded rod is rotatably connected to the mounting sleeve, and the movable plate is slidably connected to the slide groove while also being connected to the threaded rod through the threaded sleeve.
[0011] A further technical solution of this utility model is: the bottom end of the movable sleeve is provided with a connecting block, and the top end of the connecting rod is fixedly connected to the movable sleeve through the connecting block.
[0012] A further technical solution of this utility model is: the connecting block is slidably connected to the top end of the support rod through the movable slot.
[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model uses a lifting mechanism to push the movable sleeve to slide on the limiting rod, thereby adjusting the distance between the support plate at the top of the movable sleeve and the horizontal ground to adapt to various support conditions. At the same time, a push rod is added to the bottom surface of the movable sleeve. The push rod is pushed by the elastic force generated by the compression of the spring, so that the push rod can provide support for the movable sleeve to increase the stability of the equipment. Attached Figure Description
[0014] Figure 1 This is a front view of a support device for road, bridge and tunnel construction provided by this utility model;
[0015] Figure 2 This is a cross-sectional view of a support device for road, bridge and tunnel construction provided by this utility model;
[0016] Figure 3 This is an enlarged view of point A of a support device for road, bridge and tunnel construction provided by this utility model;
[0017] Figure 4 This is a schematic diagram of the lifting mechanism of a support device for road, bridge and tunnel construction provided by this utility model;
[0018] Figure 5 This is an enlarged view of section B of a support device for road, bridge and tunnel construction provided by this utility model.
[0019] Reference numerals: 1. Base; 2. Support rod; 21. Movable slot; 22. Limiting rod; 3. Mounting sleeve; 31. Connecting plate; 32. Slide groove; 4. Lifting mechanism; 41. Support frame; 42. Servo motor; 43. Coupling; 44. Threaded rod; 45. Movable plate; 46. Connecting rod; 47. Threaded sleeve; 5. Movable sleeve; 51. Connecting block; 6. Support plate; 7. Outer support seat; 8. Push rod; 9. Spring. Detailed Implementation
[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.
[0021] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0022] In this embodiment, as Figure 1 As shown, a support device for road, bridge and tunnel construction includes a base 1, a support rod 2 on the base 1, the top of the support rod 2 is hollow and has a movable slot 21 and a limiting rod 22, the limiting rod 22 is provided with a movable sleeve 5, the top of the movable sleeve 5 is provided with a support plate 6, the support rod 2 is also provided with an installation sleeve 3, the installation sleeve 3 is provided with a lifting mechanism 4, and the top of the lifting mechanism 4 is connected to the movable sleeve 5.
[0023] The mounting sleeve 3 includes a connecting plate 31 and a sliding groove 32 disposed at its top end.
[0024] In this embodiment, as Figure 3 As shown, the connecting plate 31 is provided with an outer support seat 7. Inside the outer support seat 7, there is a spring 9 and a push rod 8. The top end of the push rod 8 is fixedly connected to the bottom end of the movable sleeve 5, and the bottom end of the push rod 8 is placed inside the outer support seat 7 and slidably connected to the outer support seat 7. The push rod 8 is pushed by the elastic force generated by the compression of the spring 9, so that the push rod 8 can provide support for the movable sleeve 5 to increase the stability of the equipment.
[0025] In this embodiment, the lifting mechanism 4 is the main component in the road, bridge, and tunnel construction support device used to adjust the height of the support plate 6. For example... Figure 4 as well as Figure 5 As shown, the lifting mechanism 4 includes: a support frame 41 disposed at the bottom end of the mounting sleeve 3, a servo motor 42 disposed on the support frame 41, a coupling 43 disposed at the output end of the servo motor 42, a threaded rod 44 disposed on the coupling 43, a movable plate 45 disposed in the slide groove 32, a connecting rod 46 disposed on the movable plate 45, and a threaded sleeve 47 disposed on the movable plate 45.
[0026] The top end of the threaded rod 44 is rotatably connected to the mounting sleeve 3, and the movable plate 45 is slidably connected to the slide groove 32 while also being connected to the threaded rod 44 via the threaded sleeve 47. Simultaneously, a connecting block 51 is provided at the bottom end of the movable sleeve 5, and the top end of the connecting rod 46 is fixedly connected to the movable sleeve 5 via the connecting block 51. When the servo motor 42 drives the coupling 43 to rotate, the threaded rod 44 also rotates accordingly. At this time, the movable plate 45 moves up and down along the slide groove 32, thereby causing the connecting rod 46 on the movable plate 45 to drive the movable sleeve 5 to slide on the limiting rod 22, thus achieving the purpose of adjusting the height of the support plate 6.
[0027] In this embodiment, the connecting block 51 is slidably connected to the top of the support rod 2 via the movable slot 21.
[0028] In actual operation, the lifting mechanism 4 is used to push the movable sleeve 5 to slide on the limit rod 22, thereby adjusting the distance between the support plate 41 at the top of the movable sleeve 5 and the horizontal ground to adapt to various support conditions. At the same time, a push rod 8 is added to the bottom surface of the movable sleeve 5. The spring force generated by the compression of the spring 9 pushes the push rod 8, so that the push rod 8 can provide support for the movable sleeve to increase the stability of the equipment.
[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A support device for road bridge tunnel construction comprising a base (1), characterized in that: The base (1) is provided with a support rod (2), the top end of the support rod (2) is provided with a hollow shape, and is provided with a movable notch (21) and a limiting rod (22), the limiting rod (22) is provided with a movable sleeve (5), the top end of the movable sleeve (5) is provided with a support plate (6), the support rod (2) is further provided with a mounting sleeve (3), the mounting sleeve (3) is provided with a lifting mechanism (4), the top end of the lifting mechanism (4) is connected with the movable sleeve (5); The mounting sleeve (3) comprises a connecting plate (31) and a sliding groove (32) arranged at the top end thereof; The connecting plate (31) is provided with an outer support seat (7), the inner portion of the outer support seat (7) is provided with a spring (9) and a push rod (8), the top end of the push rod (8) is fixedly connected with the bottom end of the movable sleeve (5), the bottom end of the push rod (8) is arranged in the inner portion of the outer support seat (7) and is in sliding connection with the outer support seat (7); The lifting mechanism (4) comprises: a support frame (41) arranged at the bottom end of the mounting sleeve (3), a servo motor (42) arranged on the support frame (41), a shaft coupling (43) arranged on the output end of the servo motor (42), a threaded rod (44) arranged on the shaft coupling (43), a movable plate (45) arranged in the sliding groove (32), a connecting rod (46) arranged on the movable plate (45), and a threaded sleeve (47) arranged on the movable plate (45).
2. The supporting device for road, bridge and tunnel construction according to claim 1, characterized in that, The top end of the threaded rod (44) is rotatably connected with the mounting sleeve (3), the movable plate (45) is in sliding connection with the sliding groove (32) and is also connected with the threaded rod (44) through the threaded sleeve (47).
3. The support device for road, bridge and tunnel construction according to claim 2, characterized in that The bottom end of the movable sleeve (5) is provided with a connecting block (51), and the top end of the connecting rod (46) is fixedly connected with the movable sleeve (5) through the connecting block (51).
4. The supporting device for road, bridge and tunnel construction according to claim 3, characterized in that The connecting block (51) is in sliding connection with the top end of the support rod (2) through the movable notch (21).
Citation Information
Patent Citations
Supporting device for road, bridge and tunnel construction
CN222333816U