Adjustable steel box girder hoisting and positioning auxiliary device
By designing an adjustable steel box girder hoisting and positioning auxiliary device, and utilizing components such as motors and threaded rods to achieve flexible adjustment of the laser indicator light, the problem of difficult position adjustment of existing devices was solved, thereby improving construction efficiency and positioning accuracy.
Patent Information
- Application Number
- CN202520601721.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-01
AI Technical Summary
The existing steel box girder positioning auxiliary device cannot be adjusted in position, resulting in a discontinuous construction process, wasting a lot of manpower and time, and affecting construction efficiency.
An adjustable steel box girder hoisting and positioning auxiliary device was designed, which uses components such as a motor, transmission belt and threaded rod. The rotation of the motor and threaded rod is controlled by a controller to adjust the position and angle of the laser indicator light, so as to facilitate accurate positioning of the installation point of the steel box girder.
It enables flexible movement and angle adjustment of the laser indicator light, reduces manual adjustment time, improves the continuity and efficiency of construction, provides a precise positioning benchmark, and reduces installation errors.
Smart Images
Figure CN223823236U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of steel box girder hoisting, in particular to an adjustable steel box girder hoisting positioning auxiliary device. BACKGROUND
[0002] Steel box girder hoisting refers to a construction process in which, in bridge construction or other related engineering, a specially designed hoisting device is used to hoist and install a prefabricated steel box girder component to a designated position according to design requirements. This process requires accurate measurement, calculation and operation to ensure the accurate positioning and installation quality of the steel box girder, and is a key link in the construction of the steel box girder structure.
[0003] For the related technology in the above, the inventors find that the existing steel box girder positioning auxiliary device is mostly fixed on the hoisting device, and if the device cannot be adjusted in position, it needs to be disassembled and adjusted in position, which consumes a lot of manpower and time to move, affects the continuity of the construction process and reduces the construction efficiency. CONTENT OF THE UTILITY MODEL
[0004] In order to facilitate the position adjustment of the auxiliary device, the application provides an adjustable steel box girder hoisting positioning auxiliary device.
[0005] The adjustable steel box girder hoisting positioning auxiliary device provided by the application adopts the following technical scheme: a cross rod is provided, a connecting block is fixedly connected to the top of the cross rod, an installation plate is fixedly connected to the top of the connecting block, a sliding groove is formed in the right side of the installation plate, a motor one is arranged on the front surface of the cross rod, a rotating column one is fixedly connected to the top output end of the motor one through a shaft coupling, a transmission belt is in transmission connection with the outer wall of the rotating column one, a moving plate is in contact with the front surface of the cross rod, a fixed block one is fixedly connected to the front surface of the moving plate, a fixed hole is formed in the right side of the fixed block one, the inner wall of the fixed hole is fixedly connected with the outer wall of the transmission belt, and a laser indicator is arranged below the transmission belt.
[0006] Optionally, a moving assembly is arranged on the front surface of the cross rod, the moving assembly comprises a fixed plate one, the back surface of the fixed plate one is fixedly connected with the front surface of the cross rod, the bottom of the fixed plate one is fixedly connected with the top of the motor one, the number of the fixed plate one is two, and the two fixed plate ones are symmetrically arranged with the installation plate as the center.
[0007] Optionally, a rotating column two is rotatably connected to the inner wall of the fixed plate one on the left side through a pin shaft, the rotating column two is in transmission connection with the rotating column one through the transmission belt, a slide is formed in the top of the cross rod, a pulley one is in contact with the inner wall of the slide, and the front surface of the pulley one is rotatably connected with the back surface of the moving plate through a pin shaft.
[0008] Optionally, the inner wall of the sliding groove contacts a slider, and the front of the slider is rotatably connected to a pulley two. There are several pulley twos arranged in a horizontal array. There are two moving plates, and the two moving plates are symmetrically arranged with the connecting block as the center.
[0009] Optionally, an angle adjustment component is provided below the slider. The angle adjustment component includes a fixed box, a second fixed plate is fixedly connected to the inner wall of the fixed box, and a rotating plate is rotatably connected to the right side of the second fixed plate.
[0010] Optionally, a laser indicator light is fixedly connected to the front of the rotating plate, a second motor is fixedly connected to the bottom of the fixed box, and a threaded rod is fixedly connected to the top output end of the second motor via a coupling. A moving block is threadedly connected to the outer surface of the threaded rod.
[0011] Optionally, the left side of the movable block is rotatably connected to a rotating rod, and the side of the rotating rod away from the movable block is rotatably connected to a fixed block two. The front of the fixed block two is fixedly connected to the back of the rotating plate, and the front of the fixed box near the rotating plate is fixedly connected to the back of the movable plate.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] 1. This utility model comprises a motor, a rotating column, a transmission belt, and other components. The entire device is mounted on the crossbeam of a hoisting equipment via a mounting plate. The controller then starts the motor, causing it to rotate clockwise, which in turn drives the rotating column to rotate. The rotating column, via the transmission belt, moves a fixed block. Since the fixed block is fixedly connected to the moving plate, it moves the moving plate to the right, thus moving the laser indicator light. When the motor rotates counter-clockwise, the transmission belt moves the fixed block to the left, facilitating the selection of the laser indicator light's position. This eliminates the need for extensive manpower and time to adjust the laser indicator light's position, allowing for continuous construction and improving efficiency.
[0014] 2. This utility model incorporates components such as a threaded rod, a moving block, and a fixed block. A controller starts a motor, causing the threaded rod to rotate clockwise, moving the moving block upwards. Simultaneously, the moving block drives a rotating rod. Since the rotating rod is rotatably connected to both the moving block and the fixed block, when the moving block moves upwards, the rotating rod pushes the rotating plate forward, changing the laser indicator's illumination angle. Conversely, the counter-clockwise rotation of the threaded rod moves the rotating plate backwards, allowing the laser indicator to illuminate vertically. This allows the device to flexibly adjust the laser illumination angle, ensuring the laser beam accurately points to the pre-set installation point of the steel box girder, providing a precise positioning reference for hoisting and reducing installation errors. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0016] Figure 2 This is a schematic diagram of the structure of the moving component in an embodiment of this application;
[0017] Figure 3 This is a schematic diagram of the slider structure in an embodiment of this application;
[0018] Figure 4 This is a schematic diagram of the angle adjustment component in an embodiment of this application;
[0019] Figure 5 This is a schematic diagram of the rotating rod in an embodiment of this application.
[0020] Reference numerals: 1. Crossbar; 11. Connecting block; 111. Mounting plate; 12. Sliding groove; 2. Moving assembly; 21. Fixed plate one; 22. Motor one; 221. Rotating column one; 23. Transmission belt; 231. Fixed block one; 24. Rotating column two; 25. Slide rail; 26. Moving plate; 261. Pulley one; 27. Sliding block; 271. Pulley two; 3. Angle adjustment assembly; 31. Fixed box; 311. Fixed plate two; 312. Rotating plate; 32. Laser indicator light; 33. Motor two; 331. Threaded rod; 34. Moving block; 341. Rotating rod; 35. Fixed block two. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0022] This application discloses an adjustable steel box girder hoisting and positioning auxiliary device. For example... Figure 1 , Figure 2 As shown, it includes a crossbar 1, a connecting block 11 fixedly connected to the top of the crossbar 1, a mounting plate 111 fixedly connected to the top of the connecting block 11, a sliding groove 12 opened on the right side of the mounting plate 111, a motor 22 is provided on the front of the crossbar 1, and a rotating column 221 is fixedly connected to the top output end of the motor 22 through a coupling. The clockwise rotation of the rotating column 221 will cause the transmission belt 23 to drive the moving plate 26 to move to the right, and the counterclockwise rotation will cause the moving plate 26 to move to the left.
[0023] In this embodiment, a transmission belt 23 is connected to the outer wall of the rotating column 221. A moving plate 26 is in contact with the front of the crossbar 1. A fixing block 231 is fixedly connected to the front of the moving plate 26. A fixing hole is opened on the right side of the fixing block 231, and the inner wall of the fixing hole is fixedly connected to the outer wall of the transmission belt 23. A laser indicator light 32 is provided below the transmission belt 23. The controller model is L298N, which is commonly used in the control of small DC motors. It can drive dual DC motors and control the forward and reverse rotation and speed of the motors. The speed and torque of the motors are controlled by adjusting the voltage or current of the DC power supply. For example, pulse width modulation (PWM) technology is used to adjust the average voltage applied to both ends of the motor by changing the duty cycle of the output pulse, thereby controlling the motor speed. When it is necessary to change the direction of the motor rotation, the controller achieves this by changing the direction of the current in the motor windings.
[0024] Please see Figure 2 As shown, a movable component 2 is provided on the front of the crossbar 1. The movable component 2 includes a fixed plate 21. The back of the fixed plate 21 is fixedly connected to the front of the crossbar 1, and the bottom of the fixed plate 21 is fixedly connected to the top of the motor 22.
[0025] Please see Figure 2 As shown, there are two fixing plates 21, which are symmetrically arranged with the mounting plate 111 as the center. The inner wall of the fixing plate 21 on the left is rotatably connected to the rotating column 24 via a pin. The rotating column 24 is connected to the rotating column 221 via a transmission belt 23. The inner wall of the transmission belt 23 is provided with teeth. At the same time, the outer surfaces of the rotating column 221 and the rotating column 24 are also provided with teeth. The inner wall of the transmission belt 23 meshes with the outer surfaces of the rotating column 221 and the rotating column 24.
[0026] Please see Figure 2 , Figure 3 As shown, a slide rail 25 is provided at the top of the crossbar 1. A pulley 261 is in contact with the inner wall of the slide rail 25. The front of the pulley 261 is rotatably connected to the back of the moving plate 26 via a pin. A slider 27 is in contact with the inner wall of the sliding groove 12. A pulley 271 is rotatably connected to the front of the slider 27. There are several pulleys 271 arranged in a horizontal array. The opening of the slide rail 25 allows the pulleys 261 to be restricted to move within its inner wall. At the same time, the arrangement of several pulleys 261 also makes the device move more smoothly.
[0027] Please see Figure 3 , Figure 4 As shown, there are two movable plates 26, which are symmetrically arranged with the connecting block 11 as the center. An angle adjustment component 3 is provided below the slider 27. The angle adjustment component 3 includes a fixed box 31, and a fixed plate 311 is fixedly connected to the inner wall of the fixed box 31.
[0028] Please see Figure 4 As shown, a rotating plate 312 is rotatably connected to the right side of the fixed plate 311. A laser indicator light 32 is fixedly connected to the front of the rotating plate 312. A motor 33 is fixedly connected to the bottom of the fixed box 31. The laser indicator light is model TX-JG, and its working principle generally adopts pulsed laser ranging. Laser pulses are generated by the pulsed laser diode in the laser emission system and emitted through the collimating lens.
[0029] Please see Figure 5 As shown, the top output end of motor 23 is fixedly connected to a threaded rod 331 via a coupling. A movable block 34 is threadedly connected to the outer surface of the threaded rod 331. A rotating rod 341 is rotatably connected to the left side of the movable block 34. A fixed block 25 is rotatably connected to the side of the rotating rod 341 away from the movable block 34. The front of the fixed block 25 is fixedly connected to the back of the rotating plate 312. The front of the fixed box 31, near the rotating plate 312, is fixedly connected to the back of the movable plate 26. The arrangement of the rotating rod 341 and the rotating plate 312 allows the device to flexibly adjust the laser irradiation angle, enabling the laser beam to accurately point to the preset installation point of the steel box girder, providing a precise positioning reference for hoisting and reducing installation errors.
[0030] The implementation principle of the adjustable steel box girder hoisting and positioning auxiliary device in this embodiment is as follows: The entire device is installed on the crossbeam of the hoisting equipment via the mounting plate 111. During nighttime hoisting, the controller can start the motor 22, causing the motor 22 to rotate clockwise, driving the rotating column 221 to rotate. The rotating column 221 will drive the fixed block 231 to move via the transmission belt 23. Since the fixed block 231 is fixedly connected to the moving plate 26, the fixed block 231 will drive the moving plate 26 to move to the right, causing the entire device to move the laser indicator 32. When the motor 22 rotates counterclockwise, the transmission belt 23 will drive the fixed block 231 to move to the left, facilitating the selection of the position of the laser indicator 32. This eliminates the need for a large amount of manpower and time to adjust the position of the laser indicator 32, allowing the construction to proceed continuously. To improve construction efficiency, when the illumination angle needs adjustment, the controller starts motor 33, causing the threaded rod 331 to rotate clockwise, moving the moving block 34 upwards. Simultaneously, the moving block 34 moves the rotating rod 341. Since the two ends of the rotating rod 341 are rotatably connected to the moving block 34 and the fixed block 35 respectively, when the moving block 34 moves upwards, the rotating rod 341 pushes the rotating plate 312 forward, changing the illumination angle of the laser indicator 32. Conversely, the counter-clockwise rotation of the threaded rod 331 moves the rotating plate 312 backwards, allowing the laser indicator 32 to illuminate vertically and locate the desired hoisting position. This allows the device to flexibly adjust the laser illumination angle, ensuring the laser beam accurately points to the pre-set installation point of the steel box girder, providing a precise positioning reference for hoisting and reducing installation errors.
[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An adjustable steel box girder hoisting and positioning auxiliary device, including a crossbar (1), characterized in that: A connecting block (11) is fixedly connected to the top of the crossbar (1), and a mounting plate (111) is fixedly connected to the top of the connecting block (11). A sliding groove (12) is provided on the right side of the mounting plate (111). A motor (22) is provided on the front of the crossbar (1). A rotating column (221) is fixedly connected to the top output end of the motor (22) through a coupling. A transmission belt (23) is connected to the outer wall of the rotating column (221). A moving plate (26) is in contact with the front of the crossbar (1). A fixing block (231) is fixedly connected to the front of the moving plate (26). A fixing hole is provided on the right side of the fixing block (231). The inner wall of the fixing hole is fixedly connected to the outer wall of the transmission belt (23). A laser indicator light (32) is provided below the transmission belt (23).
2. The adjustable steel box girder hoisting and positioning auxiliary device according to claim 1, characterized in that: The front of the crossbar (1) is provided with a moving component (2), the moving component (2) includes a fixing plate (21), the back of the fixing plate (21) is fixedly connected to the front of the crossbar (1), the bottom of the fixing plate (21) is fixedly connected to the top of the motor (22), there are two fixing plates (21), the two fixing plates (21) are symmetrically arranged with the mounting plate (111) as the center.
3. The adjustable steel box girder hoisting and positioning auxiliary device according to claim 2, characterized in that: The inner wall of the fixed plate 1 (21) located on the left is rotatably connected to the rotating column 2 (24) by a pin. The rotating column 2 (24) is connected to the rotating column 1 (221) by a transmission belt (23). The top of the crossbar (1) is provided with a slide rail (25). The inner wall of the slide rail (25) is in contact with the pulley 1 (261). The front of the pulley 1 (261) is rotatably connected to the back of the moving plate (26) by a pin.
4. The adjustable steel box girder hoisting and positioning auxiliary device according to claim 3, characterized in that: The inner wall of the sliding groove (12) is in contact with a slider (27), and the front of the slider (27) is rotatably connected to a pulley (271). There are several pulleys (271), which are arranged in a horizontal array. There are two moving plates (26), which are symmetrically arranged with the connecting block (11) as the center.
5. The adjustable steel box girder hoisting and positioning auxiliary device according to claim 4, characterized in that: An angle adjustment component (3) is provided below the slider (27). The angle adjustment component (3) includes a fixed box (31). A second fixed plate (311) is fixedly connected to the inner wall of the fixed box (31). A rotating plate (312) is rotatably connected to the right side of the second fixed plate (311).
6. The adjustable steel box girder hoisting and positioning auxiliary device according to claim 5, characterized in that: A laser indicator light (32) is fixedly connected to the front of the rotating plate (312), and a motor (33) is fixedly connected to the bottom of the fixed box (31). A threaded rod (331) is fixedly connected to the top output end of the motor (33) through a coupling. A moving block (34) is threadedly connected to the outer surface of the threaded rod (331).
7. The adjustable steel box girder hoisting and positioning auxiliary device according to claim 6, characterized in that: The left side of the movable block (34) is rotatably connected to a rotating rod (341), and the side of the rotating rod (341) away from the movable block (34) is rotatably connected to a fixed block two (35). The front of the fixed block two (35) is fixedly connected to the back of the rotating plate (312), and the front of the fixed box (31) near the rotating plate (312) is fixedly connected to the back of the movable plate (26).