Culvert construction positioning auxiliary device
By using a combination of a motor-driven screw and helical gear, along with the coordinated operation of an electric winding wheel and a hydraulic cylinder, the system achieves precise multi-directional positioning and automated fixed hoisting of culverts. This solves the problems of insufficient positioning accuracy and low construction efficiency in culvert construction, and improves construction quality and safety.
Patent Information
- Application Number
- CN202520283616.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing culvert construction positioning auxiliary devices suffer from insufficient positioning accuracy, low construction efficiency, high equipment procurement costs, and poor construction safety in complex terrain and culvert construction of different diameters.
The system employs a combination of a motor-driven screw and helical gear to achieve precise multi-directional positioning of the culvert. Combined with the coordinated operation of an electric winding wheel and an electric hydraulic cylinder, it enables automated fixing and hoisting of the culvert, adapting to culverts of different diameters.
It improved the positioning accuracy and construction efficiency of culvert construction, reduced manual intervention and safety risks, and enhanced the flexibility and safety of construction.
Smart Images

Figure CN223837949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of culvert construction technology, and in particular to a culvert construction positioning auxiliary device. Background Technology
[0002] The culvert construction positioning auxiliary device is a device specifically designed to improve the positioning accuracy during culvert construction. Culverts are one of the most common structures in road engineering, mainly used for underpasses, drainage pipes, cable conduits, tunnel construction, and other applications. With the continuous improvement of infrastructure construction and urbanization, the quality and technical requirements for culvert construction are also increasing, especially in projects with complex geological conditions, harsh construction environments, or special accuracy requirements.
[0003] After searching, the existing technologies for positioning auxiliary devices in culvert construction include the following aspects:
[0004] 1. A search revealed a granted utility model patent, publication number CN213331112U, for a simple trolley used in culvert construction, relating to the field of culvert construction technology. This simple trolley includes a culvert foundation and a trolley, which is positioned on top of the culvert foundation. It includes a support mechanism, a construction platform, and a traveling mechanism. The support mechanism includes a support frame and a base, with the base positioned at the bottom of the support frame. The construction platform includes a bamboo plywood board and railings, with the bamboo plywood board positioned on top of the support frame and the railings on top of the bamboo plywood board. Through the cooperation of the traveling mechanism and the support mechanism, the trolley can be moved or positioned at any time during use. The construction platform facilitates safe construction work on top of the trolley. The trolley is assembled from the support mechanism, construction platform, and traveling mechanism; therefore, it is relatively simple to manufacture, install, disassemble, and use. A single person can complete the installation and disassembly process without the need for large mechanical equipment.
[0005] 2. A utility model patent, CN216889815U, has been granted, describing an auxiliary trolley for on-site hoisting and positioning of prefabricated components. The trolley includes horizontal hydraulic arms, vertical hydraulic arms, and a power unit. Tires are mounted on a trolley base, and the power unit is fixed to the base with screws. A counterweight box with internal counterweights is fixed to the center of the base with screws. Two vertical hydraulic arms and two horizontal hydraulic arms are connected to the base. A disc gear is fixed to the base with screws, and four hydraulic arms rest on the disc gear, connected by pins. The horizontal hydraulic arms fix the components using three clamping plates and assist in positioning the sidewalls during installation via a rotation and telescopic adjustment device. The vertical hydraulic arms assist in positioning the top plate during installation via a rotating and lifting adjustment device on a sleeve. This utility model moves inside the culvert section during construction, assists in positioning the components during assembly, achieves internal and external balance during hoisting and splicing, and allows for simultaneous hoisting of the top and side plates, improving construction efficiency.
[0006] Existing technologies have contributed to the improvement of positioning auxiliary devices for culvert construction and proposed different solutions to related problems. However, based on the inventor's practical experience and summary, the following issues still exist in the use of auxiliary devices during culvert installation, and technical solutions can be sought to improve them:
[0007] Based on the aforementioned patent (CN213331112U), the trolley can be moved or positioned at any time during use through the cooperation of the walking mechanism and the support mechanism. The construction platform facilitates safe construction by workers on top of the trolley. In addition, the trolley is assembled from the support mechanism, the construction platform, and the walking mechanism. Therefore, the trolley is relatively simple to manufacture, install, disassemble, and use. A single person can complete the installation and disassembly process without the assistance of large mechanical equipment. In summary, the simple trolley can be used for construction in culverts with complex terrain and varied structural forms. It can also save costs, improve efficiency, and shorten the construction period. However, during the culvert assembly process, after the frame is moved to the approximate position by hand, it is still necessary to manually and precisely connect the culvert to the installation location, which increases the difficulty of the culvert assembly work and affects the quality and progress of the entire project.
[0008] Based on the aforementioned patent (CN216889815U), the operation is convenient and simple through remote control, which facilitates construction, avoids manual positioning, saves a lot of time and manpower, and reduces the dangers in the construction process. During hoisting, it replaces manual positioning and can more accurately position the assembly position of components, reduce errors, and improve accuracy. However, in the prior art, different installation environments require different culvert diameters. The device in this patent is designed with a fixed size, which is difficult to adapt to culverts of different diameters. As a result, multiple different specifications of devices need to be prepared for culvert construction projects of different diameters, which increases the procurement and maintenance costs of equipment. In addition, changing different specifications of devices requires additional time and manpower, which reduces construction efficiency.
[0009] Traditional culvert construction auxiliary devices are mostly installed for pre-set holes that run horizontally through roads and bridges, and there are few auxiliary devices specifically for longitudinal or vertical culvert installation. Although longitudinal channels are less common, in order to improve construction quality in modern road and bridge engineering or urban sewer systems, it is necessary to provide a culvert construction positioning auxiliary device for longitudinal installation. Utility Model Content
[0010] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a culvert construction positioning auxiliary device. This device ensures that the installation and positioning of the culvert achieves the accuracy required by the culvert design, avoids the errors and uncertainties of traditional manual adjustment, improves construction efficiency and quality, facilitates the fixed hoisting of culverts of different diameters, and enhances the flexibility and precision of construction.
[0011] To achieve the above objectives, the present invention provides the following technical solution:
[0012] A culvert construction positioning auxiliary device includes a frame. A connecting platform is fixedly connected to the top of the frame. Universal wheels are installed on both the front and rear sides of the bottom of the frame. A second motor is fixedly connected to the rear right side of the connecting platform. The drive end of the second motor is connected to an adapter ring via a transmission assembly. A first motor is fixedly connected to the front right side of the connecting platform. A controller is provided on the outer wall of the frame on the right side. The first motor drives a moving frame connected via a moving assembly. A moving platform is slidably connected to the inner wall of the moving frame. A traction rope is connected to the bottom of the moving platform via a retraction assembly. A fixed frame is fixedly connected to the bottom of the traction rope. A support column is connected to the outer wall of the fixed frame via a clamping assembly.
[0013] Furthermore, the transmission assembly includes a transmission rod fixedly connected to the second drive end of the motor, and the outer wall of the transition ring is slidably connected to the outer wall of the transmission rod.
[0014] Furthermore, the left end of the adapter ring is fixedly connected to a helical gear one, the rear end of the inner wall of the moving frame is rotatably connected to a screw two, the rear end of the screw two is fixedly connected to a helical gear two, the helical gear one and the helical gear two are meshed, and the inner wall of the moving platform is threaded to the outer wall of the screw two.
[0015] Furthermore, the movable assembly includes a screw rod fixedly connected to the drive end of a motor, the left end of the screw rod being rotatably connected to the left end of the inner wall of the connecting platform, and the inner wall of the front end of the movable frame being threadedly connected to the outer wall of the screw rod.
[0016] Furthermore, the shrinking assembly includes an electric take-up reel fixedly connected to the bottom end of the moving platform, and the outer wall of the traction rope is fixedly connected to the drive end of the electric take-up reel.
[0017] Furthermore, the clamping assembly includes an electric hydraulic cylinder fixedly connected to the top of the fixed frame and extending through it. The drive end of the electric hydraulic cylinder is fixedly connected to an adapter block, and the support column is rotatably connected to the four sides of the outer wall of the adapter block at opposite ends.
[0018] Furthermore, the bottom end of the fixed frame is fixedly connected to a fixed column by a fixing strip, and the four sides of the outer wall at both ends of the fixed column are rotatably connected to a second support column.
[0019] Furthermore, each of the two opposing ends of the support column is rotatably connected to an extrusion plate, and the opposite ends of the extrusion plates are respectively rotatably connected to the opposing ends of the support column.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, starting motor one drives screw one to rotate, causing the moving frame to move left and right within the connecting platform. Motor two drives transmission rod to rotate, and through the adapter ring and helical gear one and helical gear two, screw two rotates, causing the moving platform to move back and forth along the moving frame. This allows the device to be precisely positioned to the culvert installation location, improving construction efficiency and quality, reducing manual intervention and safety hazards, and ensuring the culvert is accurately positioned during installation, thereby improving the overall construction effect and safety.
[0022] 2. In this utility model, by starting the electric winding wheel to drive the traction rope to retract or release, after the fixed column is connected to the culvert cavity, the electric hydraulic cylinder drive end extends and retracts to drive the transition block to move, so that the first support column deforms at an angle and cooperates with the second support column, opening the extrusion plate outward to abut against the inner cavity of the culvert and fixing the culvert. When the electric winding wheel retracts the traction rope, the culvert can be lifted for connection and installation. This device can adapt to culverts of different diameters, significantly improving the flexibility and precision of construction, assisting workers in the handling and positioning of culverts, reducing construction risks, and ensuring the quality and progress of culvert construction. Attached Figure Description
[0023] Figure 1 This is a perspective view of a culvert construction positioning auxiliary device proposed in this utility model;
[0024] Figure 2 This is a cross-sectional view of the connecting platform of a culvert construction positioning auxiliary device proposed in this utility model;
[0025] Figure 3 This is a cross-sectional view of the movable frame of a culvert construction positioning auxiliary device proposed in this utility model;
[0026] Figure 4 This is a half-sectional view of the adapter ring of a culvert construction positioning auxiliary device proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the structure of an electric hydraulic cylinder for a culvert construction positioning auxiliary device proposed in this utility model;
[0028] Figure 6 This is a half-sectional view of the fixing frame of a culvert construction positioning auxiliary device proposed in this utility model.
[0029] Legend:
[0030] 1. Frame; 2. Connecting platform; 3. Motor 1; 4. Motor 2; 5. Screw 1; 6. Moving frame; 7. Transmission rod; 8. Adapter ring; 9. Helical gear 1; 10. Helical gear 2; 11. Screw 2; 12. Moving platform; 13. Electric winding reel; 14. Traction rope; 15. Electric hydraulic cylinder; 16. Fixing frame; 17. Adapter block; 18. Fixing column; 19. Support column 1; 20. Support column 2; 21. Extrusion plate. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a culvert construction positioning auxiliary device, comprising a frame 1, a connecting platform 2 fixedly connected to the top of the frame 1, universal wheels installed on both the front and rear sides of the bottom of the frame 1, a motor 4 fixedly connected to the rear right side of the connecting platform 2, a drive end of the motor 4 connected to a transition ring 8 via a transmission assembly, the transmission assembly including a transmission rod 7 fixedly connected to the drive end of the motor 4, the inner wall of the transition ring 8 slidably connected to the outer wall of the transmission rod 7, a helical gear 9 fixedly connected to the left end of the transmission rod 7, and a screw 1 rotatably connected to the rear end of the inner wall of the movable frame 6. 1. A helical gear 10 is fixedly connected to the rear end of the screw 11. The helical gear 9 and the helical gear 10 are meshed. The inner wall of the moving platform 12 is threaded to the outer wall of the screw 11. A motor 3 is fixedly connected to the front right side of the connecting platform 2. A controller is provided on the outer wall of the right frame 1. The drive end of the motor 3 is connected to the moving frame 6 motor 3 through the moving assembly. The moving assembly includes a screw 5 fixedly connected to the drive end of the motor 3. The left end of the screw 5 is rotatably connected to the left end of the inner wall of the connecting platform 2. The inner wall of the front end of the moving frame 6 is threaded to the outer wall of the screw 5.
[0033] Specifically: The frame 1 can be flexibly moved to the approximate installation position on the construction site via casters. The casters design allows the equipment to move easily even on harsh ground, reducing the difficulty and time of initial positioning. After initial positioning, the controller starts motor 3. Motor 3 drives screw 5 to rotate, causing the moving frame 6 to move left and right within the connecting platform 2. This horizontal movement adjustment allows the moving platform 12 to make fine adjustments in the left and right directions, ensuring the culvert's accurate positioning in the horizontal direction. When a forward and backward adjustment is needed, the controller starts motor 4. Motor 4 drives transmission rod 7 to rotate. Transmission rod 7 passes through adapter ring 8 and connects to helical gear 9, causing helical gear 9 to rotate. Helical gear 9 then drives helical gear 10 to rotate through meshing, which in turn causes screw 11 to rotate. The rotation of screw 11 causes the moving platform 12 to move forward and backward within the moving frame 6. This forward and backward movement adjustment allows the moving platform 12 to make fine adjustments in the forward and backward directions, ensuring the culvert's accurate positioning in the forward and backward spatial direction. In summary, the device, through precise adjustments in the front-to-back and left-to-right directions, allows the frame 1 to be moved to the approximate installation position with the assistance of casters. Multiple fine-tuning in these directions ensures the culvert installation achieves the required high precision. This multi-directional fine-tuning avoids the lack of precision and accuracy in traditional crane-lifting installation, improving construction efficiency and quality while reducing manual intervention and safety hazards. This precise multi-directional adjustment ensures the culvert's accurate position during vertical installation, thereby improving the overall construction effect and safety.
[0034] Reference Figure 3 , Figure 5 and Figure 6The bottom of the mobile platform 12 is connected to a traction rope 14 via a retraction assembly. The retraction assembly includes an electric winding wheel 13 fixedly connected to the bottom of the mobile platform 12. The top of the traction rope 14 is fixedly connected to the drive end of the electric winding wheel 13. The bottom of the traction rope 14 is fixedly connected to a fixed frame 16. The outer wall of the fixed frame 16 is connected to a support column 19 via a clamping assembly. The clamping assembly includes an electric hydraulic cylinder 15 fixedly connected to the top surface of the fixed frame 16. Its drive end passes through the fixed frame 16. The drive end of the electric hydraulic cylinder 15 is fixedly connected to a transition block 17. The opposite ends of the support column 19 are rotatably connected to the four sides of the outer wall of the transition block 17. The bottom of the fixed frame 16 is fixedly connected to a fixed column 18 via a fixing strip. The four sides of the outer wall of the upper and lower ends of the fixed column 18 are rotatably connected to support columns 20. The opposite ends of the support columns 20 are rotatably connected to extrusion plates 21. The opposite ends of the extrusion plates 21 are rotatably connected to the opposite ends of the support columns 19. The outer surface of the extrusion plate 21 may be provided with anti-slip teeth and / or anti-slip pads to increase friction.
[0035] Specifically: The controller activates the electric winding wheel 13, which in turn retracts or extends the traction rope 14, adjusting its length to control the height and stability of the entire hoisting system. Once the fixed column 18 is precisely aligned with the culvert cavity, the controller activates the electric hydraulic cylinder 15. The drive end of the electric hydraulic cylinder 15 extends and retracts, causing the adapter block 17 to rotate along the fixing frame 16. The movement of the adapter block 17 causes the angle of its connected support column 19 to deform. Simultaneously, it cooperates with the support column 20 connected to the fixed column 18, working together to press the compression plate 21, causing it to open outward and firmly abut against the inner wall of the culvert, thus achieving stable fixation of the culvert. After fixation, the controller controls the electric winding wheel 13 to wind up the traction rope 14, lifting the fixed culvert in preparation for installation. This design allows the extrusion plate 21 to automatically adjust its expansion according to the diameter of the culvert cavity, ensuring it can support culverts of different diameters. It also greatly simplifies the construction process through automation, ensuring worker safety. The precise control of the electric hydraulic cylinder 15 and the power support of the electric winding wheel 13 significantly improve construction efficiency and safety, reducing the complexity of manual operation. Furthermore, the device's auxiliary functions are reflected in its flexibility and adaptability. Whether the culvert is narrow or large, the device can ensure close contact between the extrusion plate 21 and the culvert cavity wall by adjusting the positions of support columns 19 and 20, thus achieving a secure fixation. This design not only improves construction accuracy but also greatly reduces the labor intensity of workers, providing reliable technical support for the handling and installation of culverts. In summary, this device, through the coordinated work of the electric winding wheel 13, electric hydraulic cylinder 15, fixing frame 16, adapter block 17, support column 19, support column 20, and extrusion plate 21, achieves rapid fixing and efficient hoisting of culverts, significantly improving construction efficiency and reducing safety risks.
[0036] Working Principle: When motor 3 is started, it drives screw 5 to rotate. The rotation of screw 5 drives the moving frame 6 to move horizontally within the connecting platform 2. As the moving frame 6 moves, the moving platform 12 connected to it also moves left and right, thus adjusting the lateral position. Simultaneously, when motor 4 is started, it drives transmission rod 7 to rotate. Transmission rod 7 passes through adapter ring 8 and connects to helical gear 9, thus transmitting rotation to helical gear 9. Helical gear 9 meshes with helical gear 10, so the rotation of helical gear 9 drives helical gear 10 to rotate, which in turn causes screw 11 to rotate. The rotation of screw 11 causes the moving platform 12 to move back and forth within the moving frame 6, thus adjusting the longitudinal position. This dual adjustment mechanism allows the frame 1 to be further finely adjusted after the casters have moved to the approximate installation position, ensuring that the loaded culvert can be accurately positioned to the culvert to be installed. At the pre-drilled hole, the position of the culvert can be precisely controlled through the coordinated operation of motor 3 and motor 4, improving the accuracy and efficiency of installation. In addition, when the electric winding wheel 13 is started, it will drive the traction rope 14 to retract or extend. After the fixed column 18 is connected into the culvert cavity, the electric hydraulic cylinder 15 can drive the adapter block 17 to rotate along the fixed frame 16, causing the support column 19 connected to the adapter block 17 to deform. At the same time, it cooperates with the support column 20 connected to the fixed column 18. Under the joint action, the support column 19 and support column 20 open the extrusion plate 21 outward, thereby abutting against the inner wall of the culvert cavity and fixing the culvert. After fixing, the electric winding wheel 13 will wind up the traction rope 14, thereby lifting the fixed culvert for installation. This design allows the device to easily fix and lift culverts of different diameters, greatly assisting the workers in the transportation of culverts and improving construction efficiency and safety.
[0037] The culvert in this application refers to a concrete culvert, and the device assists in the precise docking and positioning installation between identical culverts.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 culvert construction positioning auxiliary device, comprising a frame (1), characterized in that: The top of the frame (1) is fixedly connected to a connecting platform (2). The bottom of the frame (1) is equipped with casters on both the front and rear sides. The right rear side of the connecting platform (2) is fixedly connected to a second motor (4). The drive end of the second motor (4) is connected to an adapter ring (8) via a transmission group. The front right side of the connecting platform (2) is fixedly connected to a first motor (3). The outer wall of the frame (1) on the right side is equipped with a controller. The drive end of the first motor (3) is connected to a moving frame (6) via a moving group. The inner wall of the moving frame (6) is slidably connected to a moving platform (12). The bottom end of the moving platform (12) is connected to a traction rope (14) via a retraction group. The bottom end of the traction rope (14) is fixedly connected to a fixed frame (16). The outer wall of the fixed frame (16) is connected to a first support column (19) via a clamping group.
2. The culvert construction positioning auxiliary device according to claim 1, characterized in that: The transmission assembly includes a transmission rod (7) fixedly connected to the drive end of motor 2 (4), and the inner wall of the adapter ring (8) is slidably connected to the outer wall of the transmission rod (7).
3. The culvert construction positioning auxiliary device according to claim 2, characterized in that: The left end of the transmission rod (7) is fixedly connected to the first helical gear (9), the rear end of the inner wall of the moving frame (6) is rotatably connected to the second screw (11), the rear end of the second screw (11) is fixedly connected to the second helical gear (10), the first helical gear (9) and the second helical gear (10) are meshed, and the inner wall of the moving platform (12) is threaded to the outer wall of the second screw (11).
4. The culvert construction positioning auxiliary device according to claim 1, characterized in that: The moving assembly includes a screw rod (5) fixedly connected to the drive end of the motor (3). The left end of the screw rod (5) is rotatably connected to the left end of the inner wall of the connecting platform (2). The inner wall of the front end of the moving frame (6) is threadedly connected to the outer wall of the screw rod (5).
5. The culvert construction positioning auxiliary device according to claim 1, characterized in that: The shrinking assembly includes an electric take-up reel (13) fixedly connected to the bottom of the moving platform (12), and the top end of the traction rope (14) is fixedly connected to the drive end of the electric take-up reel (13).
6. The culvert construction positioning auxiliary device according to claim 1, characterized in that: The clamping assembly includes an electric hydraulic cylinder (15) fixedly connected to the top surface of the fixed frame (16), the driving end of which passes through the fixed frame (16). The driving end of the electric hydraulic cylinder (15) is fixedly connected to a transition block (17), and the support column (19) is rotatably connected to the four sides of the outer wall of the transition block (17) at opposite ends.
7. The culvert construction positioning auxiliary device according to claim 6, characterized in that: The bottom end of the fixed frame (16) is fixedly connected to a fixed column (18) by a fixed strip, and the upper and lower ends of the fixed column (18) are rotatably connected to four sides of the outer wall of the fixed column (18).
8. The culvert construction positioning auxiliary device according to claim 7, characterized in that: Each of the two support columns (20) is rotatably connected to an extrusion plate (21) at one of its opposite ends. The extrusion plates (21) are rotatably connected to the opposite ends of the first support column (19) at one of its opposite ends.
Citation Information
Patent Citations
Simple trolley for culvert construction
CN213331112U
Auxiliary trolley for on-site hoisting and positioning of assembly type component
CN216889815U