Hoisting device for transferring steel box girder
By designing a multi-functional hoisting device with length and width adjustment mechanisms, gripping and connection mechanisms, and combining pressure monitoring and level detection, the problem of needing to replace existing devices was solved, and the safety and efficiency of steel box girder hoisting were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA GEZHOUBA GRP HIGHWAY OPERATION CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-17
AI Technical Summary
The existing hoisting equipment for transferring steel box girders requires different hoisting devices to be replaced according to the size of the steel box girder, which leads to wasted time and the possibility of accidents due to incorrect hoisting positions, posing safety hazards.
A hoisting device was designed, comprising a length adjustment mechanism, a width adjustment mechanism, a gripping mechanism, a connecting mechanism, a pressure monitoring mechanism, and a level detection mechanism. It can adapt to steel box girders of different sizes. The device uses pressure sensors to detect the pressure of the grippers and a vision camera to determine the hoisting position, ensuring that the hoisting device is level and improving safety and efficiency.
It enables adaptability to steel box girders of different sizes during hoisting, reduces equipment replacement time, improves hoisting safety and accuracy, and avoids accidents such as tipping over.
Smart Images
Figure CN224132537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting technology, specifically a hoisting device for transferring steel box girders. Background Technology
[0002] The steel box girder transfer hoisting device is a special equipment used for transporting, positioning and installing steel box girder segments in bridge construction. Its core functions include hoisting and transfer, angle adjustment and precise positioning to ensure safe and efficient construction of steel box girders in complex terrain (such as river surface, high altitude) or confined space.
[0003] Existing hoisting devices for transferring steel box girders require different devices to be used depending on the size of the girder, which is not only time-consuming but also prone to installation errors leading to accidents. Incorrect hoisting positioning during operations can cause the girder to tip over in mid-air, resulting in damage to personnel and equipment, and significant economic losses. Therefore, we need to propose a new hoisting device for transferring steel box girders. Utility Model Content
[0004] The purpose of this utility model is to provide a hoisting device for transferring steel box girders, which has advantages and solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device for transferring steel box girders, comprising a mounting plate, a length adjustment mechanism for adjusting steel box girders of different lengths is provided above the mounting plate, a width adjustment mechanism for adjusting steel box girders of different widths is provided at the top of the mounting plate, a gripping mechanism for gripping the steel box girders is provided below the mounting plate, a connecting mechanism for connecting to hoisting equipment is provided above the length adjustment mechanism, a pressure monitoring mechanism for pressure detection is provided inside the gripping mechanism, and a level detection mechanism for detecting whether the hoisting device is level is provided inside the length adjustment mechanism.
[0006] Preferably, the length adjustment mechanism includes a base plate, which is disposed above the mounting plate. A first slide rail is provided at the bottom of the base plate, and a first slider is provided at the top of the mounting plate. The first slide rail and the first slider are adapted to each other, and a first baffle is provided at both ends of the base plate.
[0007] Preferably, the width adjustment mechanism includes a second slide rail, which is disposed on the top of the mounting plate. A second slider is slidably mounted on the surface of the second slide rail, and a second baffle is provided at both ends of the mounting plate.
[0008] Preferably, the gripping mechanism includes a gripper, which is disposed below the mounting plate. A connecting plate is disposed on the top of the gripper, and a connecting block is disposed on the top of the second slider. The connecting plate is disposed at the bottom of the connecting block, and a bolt is disposed on the surface of the connecting plate. The bolt passes through the connecting plate and extends into the interior of the connecting block.
[0009] Preferably, the connecting mechanism includes a connecting rod, which is disposed above the base plate. A connecting ring is provided at the top of the connecting rod, and both ends of the connecting ring are chamfered. The surface of the connecting rod is coated with an anti-corrosion coating.
[0010] Preferably, the pressure monitoring mechanism includes a mounting hole, which is opened inside the gripper. A pressure sensor is disposed inside the mounting hole, with the detection end of the pressure sensor pointing upwards towards the gripper. A placement hole is opened at the bottom of the mounting plate, with a vision camera disposed inside the placement hole, and the detection end of the vision camera pointing towards the bottom of the mounting plate.
[0011] Preferably, the level detection mechanism includes a mounting groove, which is disposed inside the base plate, and a level sensor is disposed inside the mounting groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model includes a length adjustment mechanism for hoisting steel box girders of different lengths, a width adjustment mechanism for hoisting steel box girders of different widths, a gripping mechanism for gripping the steel box girders, a connecting mechanism for connecting with hoisting equipment, a pressure monitoring mechanism for detecting the pressure of each gripper during hoisting, and a level detection mechanism for detecting whether the hoisting device is level.
[0014] 2. Compared to existing technologies where different lifting devices are used depending on the size of the steel box girder, and incorrect lifting positions can lead to accidents such as tipping in mid-air, this new technology performs pre-lifting at the start of the lifting operation. Pressure sensors monitor the pressure of each gripper to ensure even distribution, preventing tipping in mid-air. It is also adaptable to steel box girders of various lengths and widths. This saves time on changing lifting devices and improves lifting safety. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a hoisting device for transferring steel box girders according to the present invention;
[0016] Figure 2 This is a sectional view of a hoisting device for transferring steel box girders according to this utility model;
[0017] Figure 3 This is a cross-sectional view of the clamps of a hoisting device for transferring steel box girders according to this utility model;
[0018] Figure 4 This is a sectional view of the base plate of a hoisting device for transferring steel box girders according to this utility model;
[0019] Figure 5 This is a sectional view of the mounting plate of a hoisting device for transferring steel box girders according to this utility model.
[0020] In the diagram: 1. Mounting plate; 2. Base plate; 3. First slide rail; 4. First slider; 5. First baffle; 6. Second slide rail; 7. Second slider; 8. Second baffle; 9. Gripper; 10. Connecting plate; 11. Connecting block; 12. Bolt; 13. Connecting rod; 14. Connecting ring; 15. Chamfer; 16. Anti-corrosion coating; 17. Mounting hole; 18. Pressure sensor; 19. Placement hole; 20. Vision camera; 21. Mounting groove; 22. Horizontal sensor. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-5 This utility model provides a technical solution: a hoisting device for transferring steel box girders, including a mounting plate 1. A length adjustment mechanism for adjusting steel box girders of different lengths is provided above the mounting plate 1. The length adjustment mechanism includes a base plate 2, which is positioned above the mounting plate 1. A first slide rail 3 is provided at the bottom of the base plate 2, and a first slider 4 is provided at the top of the mounting plate 1. The first slide rail 3 and the first slider 4 are adapted to each other. First baffles 5 are provided at both ends of the base plate 2. When hoisting steel box girders of different lengths, the clamping length is adjusted by moving the position of the first slider 4 on the surface of the first slide rail 3. The first baffles 5 act as a limit to prevent the first slider 4 from moving out of the first slide rail 3.
[0023] The top of the mounting plate 1 is equipped with a width adjustment mechanism for adjusting steel box girders of different widths. The width adjustment mechanism includes a second slide rail 6, which is located on the top of the mounting plate 1. A second slider 7 is slidably mounted on the surface of the second slide rail 6. Second baffles 8 are provided at both ends of the mounting plate 1. When hoisting steel box girders of different widths, the clamping length is adjusted by moving the position of the second slider 7 on the surface of the second slide rail 6. The second baffles 8 act as a limit to prevent the second slider 7 from moving out of the second slide rail 6.
[0024] A gripping mechanism for grasping the steel box girder is provided below the mounting plate 1. The gripping mechanism includes a gripper 9, which is located below the mounting plate 1. A connecting plate 10 is provided on the top of the gripper 9, and a connecting block 11 is provided on the top of the second slider 7. The connecting plate 10 is located at the bottom of the connecting block 11, and bolts 12 are provided on the surface of the connecting plate 10, penetrating the connecting plate 10 and extending into the interior of the connecting block 11. The steel box girder is grasped by the gripper 9, and the opening and closing of the gripper 9 is achieved by the connection block 11 and the second slider 7.
[0025] Above the length adjustment mechanism is a connecting mechanism for connecting to hoisting equipment. The connecting mechanism includes a connecting rod 13, which is positioned above the base plate 2. A connecting ring 14 is located at the top of the connecting rod 13, and both ends of the connecting ring 14 are chamfered 15. The surface of the connecting rod 13 is coated with an anti-corrosion coating 16. The connecting ring 14 is used for connecting steel cables, the chamfers 15 prevent the steel cables from breaking due to wear at both ends of the connecting ring 14, and the anti-corrosion coating 16 improves the service life of the equipment.
[0026] The gripping mechanism includes an internal pressure monitoring system for pressure detection. This system includes a mounting hole 17 located inside the gripper 9, housing a pressure sensor 18 with its detection end pointing upwards towards the gripper 9. A placement hole 19 is located at the bottom of the mounting plate 1, housing a vision camera 20 with its detection end pointing downwards towards the bottom of the mounting plate 1. During hoisting operations, the steel box girder is pre-hoisted. Data from the pressure sensor 18 is used to determine if the pressure on each gripper 9 is consistent, thus locating the center point of the steel box girder to be hoisted. The vision camera 20 is used to detect whether the grippers 9 have properly gripped the girder.
[0027] The length adjustment mechanism is internally equipped with a level detection mechanism to check whether the hoisting device is level. The level detection mechanism includes a mounting groove 21, which is located inside the base plate 2, and a level sensor 22 is installed inside the mounting groove 21. When hoisted into the air, the data obtained by the level sensor 22 is used to determine whether the hoisted steel box girder is tilted, so as to detect problems in advance and avoid personnel injury and equipment damage.
[0028] 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 hoisting device for transferring a steel box girder, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a length adjustment mechanism for adjusting steel box girders of different lengths above it, a width adjustment mechanism for adjusting steel box girders of different widths at the top of the mounting plate (1), a gripping mechanism for gripping the steel box girders at the bottom of the mounting plate (1), a connection mechanism for connecting with hoisting equipment above the length adjustment mechanism, a pressure monitoring mechanism for pressure detection inside the gripping mechanism, and a level detection mechanism for detecting whether the hoisting device is level inside the length adjustment mechanism.
2. The hoisting device for transferring a steel box girder according to claim 1, characterized in that: The length adjustment mechanism includes a base plate (2), which is located above the mounting plate (1). A first slide rail (3) is provided at the bottom of the base plate (2), and a first slider (4) is provided at the top of the mounting plate (1). The first slide rail (3) and the first slider (4) are adapted to each other. A first baffle (5) is provided at both ends of the base plate (2).
3. The hoisting device for transferring a steel box girder according to claim 2, characterized in that: The width adjustment mechanism includes a second slide rail (6), which is disposed on the top of the mounting plate (1). A second slider (7) is slidably mounted on the surface of the second slide rail (6), and a second baffle (8) is provided at both ends of the mounting plate (1).
4. The hoisting device for transferring a steel box girder according to claim 3, characterized in that: The gripping mechanism includes a gripper (9) disposed below the mounting plate (1). A connecting plate (10) is disposed on the top of the gripper (9). A connecting block (11) is disposed on the top of the second slider (7). The connecting plate (10) is disposed at the bottom of the connecting block (11). A bolt (12) is disposed on the surface of the connecting plate (10). The bolt (12) penetrates the connecting plate (10) and extends into the interior of the connecting block (11).
5. The hoisting device for transferring a steel box girder according to claim 4, characterized in that: The connecting mechanism includes a connecting rod (13), which is located above the base plate (2). A connecting ring (14) is provided on the top of the connecting rod (13). Both ends of the connecting ring (14) are provided with chamfers (15). The surface of the connecting rod (13) is coated with an anti-corrosion coating (16).
6. A hoisting device for transferring steel box girders according to claim 5, characterized in that: The pressure monitoring mechanism includes a mounting hole (17) which is located inside the gripper (9). A pressure sensor (18) is installed inside the mounting hole (17), with the detection end of the pressure sensor (18) pointing upwards towards the gripper (9). A placement hole (19) is provided at the bottom of the mounting plate (1), with a vision camera (20) installed inside the placement hole (19), and the detection end of the vision camera (20) pointing towards the bottom of the mounting plate (1).
7. The hoisting device for transferring a steel box girder according to claim 6, characterized in that: The level detection mechanism includes a mounting groove (21), which is located inside the base plate (2), and a level sensor (22) is installed inside the mounting groove (21).