Corner protection device for hoisting prefabricated T-beam
By designing angle guard devices with first and second angle guard components with the same structure and adjustable structure, the problem that the prior art cannot meet the needs of T-beams of multiple specifications is solved, and adaptability and efficient lifting of T-beams of different specifications is achieved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202422250142.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing angle guard devices for prefabricated T-beam hoisting cannot meet the needs of various specifications of T-beams, and the device structure is not versatile and the installation and disassembly efficiency is low.
An angle guard device including a first angle guard assembly and a second angle guard assembly is designed. The two sets of components have the same structure. Through the combination of L-shaped plate, pads, chains and telescopic rope, adaptability to T-beams of different specifications is achieved, and the clamping function is achieved through screw adjustment and chain connection.
The device can adjust the width according to T-beam of different specifications, which is versatile, simplifies the parts and installation process, improves the lifting efficiency, and avoids the risk of falling objects from high altitudes through the clamping function.
Smart Images
Figure CN223016252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a precast T-beam, in particular to a corner protection device for hoisting precast T-beams. Background Art
[0002] The patent "A corner protection device for hoisting precast T-beams" with the application number "202223503976.x" can avoid the direct contact between the steel wire rope and the corners of the T-beam during the hoisting of the T-beam, disperse the stress from the hoisting steel wire rope, and effectively reduce the wear of the steel wire rope and the phenomenon of the T-beam losing corners. When removing the hoisting steel wire rope during the erection of the T-beam, the corner protection of the web can be directly recovered on the bridge deck by using the anti-dropping device, with fast construction speed, which can improve work efficiency and reduce the risk of falling objects from height. This device can prevent the wear of the steel wire rope to a certain extent, but there are the following problems: 1) The upper part uses a U-shaped flange corner protection, and the width of the U-shaped flange corner protection is fixed. In the actual process, there are several specifications of precast T-beams, and this device cannot meet the use of T-beams with multiple specifications and does not have universality; 2) In this device, there are flange corner protections and web corner protections, and the two corner protection structures are different and cannot be used interchangeably; 3) This device mentions that each corner protection is connected to each other by a thin steel wire rope to prevent dropping, and the installation and disassembly of the thin steel wire rope rely on winding, with low efficiency. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a corner protection device for hoisting precast T-beams, which can not only achieve the purpose of protection, but also has universality. In addition, it has a clamping function and can also avoid falling objects from height during disassembly.
[0004] To solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A corner protection device for hoisting precast T-beams includes a first corner protection component and a second corner protection component. The first corner protection component and the second corner protection component form a corner protection unit and are distributed on the flange at both ends of the T-beam and the web at the bottom;
[0006] The first corner protection component and the second corner protection component have the same structure, and both include an L-shaped plate. A first cushion is slidably arranged along the length direction inside the straight part on one side of the L-shaped plate, and the first cushion is adjusted and moved by a screw rod. A second cushion is arranged on the straight part on the other side of the L-shaped plate, and the second cushion is connected to the first cushion by a chain; the two second cushions of the first corner protection component and the second corner protection component and between the corner protection units are all connected by a telescopic rope.
[0007] A plurality of groups of first perforated ear plates are arranged at the edge of the L-shaped plate on the side of the second cushion, and a plurality of groups of second perforated ear plates are arranged on the back of the L-shaped plate.
[0008] The telescopic rope includes a turnbuckle, and both ends of the turnbuckle are connected to a steel wire rope.
[0009] The first cushion and the second cushion are provided with rubber layers on the side close to the T-beam.
[0010] The utility model provides a corner protection device for hoisting precast T-beams, which has the following technical effects:
[0011] 1). By adopting the first corner protection component and the second corner protection component, the width between the first corner protection component and the second corner protection component can be adjusted, so as to meet the hoisting requirements of T-beams of different specifications, and it has universality.
[0012] 2). In this device, the structures of the first corner protection component and the second corner protection component are the same, and the structures of the corner protection units at the flange plates and webs at both ends of the T-beam are also the same. The parts are single, the manufacturing is more convenient, and the installation is simpler.
[0013] 3). In this application, the first corner protection component and the second corner protection component are connected by a telescopic rope and can be adjusted. In this way, the first corner protection component and the second corner protection component can be clamped on the T-beam. Without using a thin steel wire rope connection, it can also avoid dropping when removing the lifting rope and recycling this device later, ensuring safety.
[0014] 4). In addition, this device is wound around the T-beam in a ring shape, and three groups of telescopic ropes are arranged at each place, with sufficient strength. The lifting rope can directly pass through the second perforated ear plates on the corner protection units at the left and right flange plates for lifting, making the lifting more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The following further illustrates the utility model with reference to the drawings and embodiments:
[0016] Figure 1 It is the installation schematic diagram of the utility model.
[0017] Figure 2 It is the connection schematic diagram of the first corner protection component and the second corner protection component in the utility model.
[0018] Figure 3 It is the structural schematic diagram of the first corner protection component in the utility model (the first perspective).
[0019] Figure 4 It is the structural schematic diagram of the first corner protection component in the utility model (the second perspective).
[0020] Figure 5 It is the schematic diagram of the loose state of the corner protection unit in the utility model.
[0021] Figure 6 It is the schematic diagram of the clamped state of the corner protection unit in the utility model.
[0022] Figure 7Schematic diagram of the cooperation between the first corner protection component and the T-beam in the present utility model.
[0023] In the figure: the first corner protection component 1, the second corner protection component 2, the L-shaped plate 3, the first cushion 4, the screw 5, the second cushion 6, the chain 7, the telescopic rope 8, the first perforated ear plate 9, the second perforated ear plate 10, and the T-beam 11. Specific implementation manner
[0024] As Figure 1 shown, a corner protection device for hoisting precast T-beams includes a first corner protection component 1 and a second corner protection component 2. The first corner protection component 1 and the second corner protection component 2 form a corner protection unit. There are three groups of corner protection units, two of which are respectively arranged on the flange plates at both ends of the T-beam 11, and one group is arranged on the web at the bottom of the T-beam 11.
[0025] As Figures 2 - 4 shown, the first corner protection component 1 and the second corner protection component 2 have the same structure, and both include an L-shaped plate 3. The L-shaped plate 3 is transitionally connected by two straight parts and an intermediate arc part. A chute is opened along the length direction in the middle of one straight part of the L-shaped plate 3. The back surface of the first cushion 4 is slidably matched with the chute through a slider. A screw 5 is rotatably installed on the slider at the top of the first cushion 4, and the screw 5 is threadedly connected with the L-shaped plate 3. By rotating the screw 5, the first cushion 4 can move up and down along the length direction of one straight part of the L-shaped plate 3. A second cushion 6 is arranged on the other straight part of the L-shaped plate 3. The second cushion 6 is placed on the L-shaped plate 3, and the second cushion 6 is connected with the first cushion 4 through a chain 7. As Figure 6 shown, both ends of the chain 7 are close to the inner wall of the L-shaped plate 3 at the connection of the first cushion 4 and the second cushion 6. In this way, when the chain 7 is in a tightened state, it does not contact the corners of the T-beam 11, avoiding damage to the T-beam 11. The two second cushions 6 between the first corner protection component 1 and the second corner protection component 2 of the same group of corner protection units are connected through a telescopic rope 8.
[0026] As Figure 5 shown, the width between the first corner protection component 1 and the second corner protection component 2 matches the width of the flange plate of the T-beam 11 or the width of the web. In the initial state, the first cushions 4 and the second cushions 6 of the first corner protection component 1 and the second corner protection component 2 are in contact with the T-beam 11, and the chain 7 and the telescopic rope 8 are in a slightly loose and unloaded state.
[0027] As Figure 6As shown in the figure, subsequently, turn the screws 5 of the first corner guard assembly 1 and the second corner guard assembly 2. Each screw 5 drives the first cushion 4 to move upward and away from the second cushion 6. During the upward movement of the two first cushions 4, the chain 7 and the telescopic rope 8 are gradually tightened. After the chain 7 and the telescopic rope 8 are fully tightened to a certain extent, the telescopic rope 8 will exert a certain pulling force on the first corner guard assembly 1 and the second corner guard assembly 2, and the first corner guard assembly 1 and the second corner guard assembly 2 are clamped on the T-beam 11.
[0028] When dealing with T-beams 11 of different sizes, the width of the telescopic rope 8 can be adjusted so that the width between the first corner guard assembly 1 and the second corner guard assembly 2 matches the flange width or the web width of the T-beams 11 of different specifications.
[0029] As Figure 2 shown in the figure, on the edge of the L-shaped plate 3 on one side of the second cushion 6, there are multiple groups of first perforated ear plates 9, and the telescopic rope 8 can pass through the first perforated ear plates 9. On the back of the L-shaped plate 3, there are multiple groups of second perforated ear plates 10. Different corner guard units are connected by the telescopic rope 8, and both ends of the telescopic rope 8 between different corner guard units can be detachably connected to the second perforated ear plates 10 through self-locking hooks.
[0030] Preferably, the telescopic rope 8 includes a turnbuckle 8.1, and both ends of the turnbuckle 8.1 are connected to a steel wire rope 8.2. The turnbuckle 8.1 is a mature existing structure and can be adjusted for a certain amount of telescoping, which is convenient for the use of T-beams 11 or other precast beams of different specifications.
[0031] Preferably, rubber layers are provided on the sides of the first cushion 4 and the second cushion 6 close to the T-beam 11. The rubber layers play a role in further protection.
[0032] Preferably, the L-shaped plate 3 can be provided with a limit groove or a limit ring, through which the steel wire rope can pass during lifting to achieve limitation.
[0033] Working principle and process:
[0034] 1). For a certain specification of T-beam 11, pre-adjust the length of the telescopic rope 8 so that the telescopic rope 8 meets the usage requirements of the corresponding specification of T-beam 11.
[0035] 2). Arrange the two groups of corner guard units on the flange plates at both ends of the T-beam 11 respectively, and arrange one group on the web at the bottom of the T-beam 11. By turning the screws 5 at the corresponding positions, the three groups of corner guard units are clamped on the T-beam 11. During the clamping process of each group of corner guard units, the telescopic rope 8 between the first corner guard assembly 1 and the second corner guard assembly 2 in each group of corner guard units can be assisted to be adjusted, so that the telescopic rope 8 is shortened to be tightened, accelerating the clamping speed of the first corner guard assembly 1 and the second corner guard assembly 2 with the T-beam 11, and the efficiency can be improved.
[0036] 3), Subsequently, connect the three groups of corner protection units with three groups of telescopic ropes 8, and appropriately adjust the turnbuckle 8.1 on the telescopic rope 8 to tighten each group of telescopic ropes 8, thereby realizing the installation of the corner protection.
[0037] 4), During the later hoisting, the hoisting steel wire rope directly bypasses the limit groove or limit ring outside the L-shaped plate 3 to avoid direct contact with the T-beam 11, thereby preventing wear.
Claims
1. A corner protection device for prefabricated T-beam hoisting, characterized in that: It comprises a first corner protection assembly (1) and a second corner protection assembly (2), wherein the first corner protection assembly (1) and the second corner protection assembly (2) form a corner protection unit and are distributed on the flange plates at both ends of the T-beam (11) and the web plate at the bottom; The first corner protection assembly (1) and the second corner protection assembly (2) have the same structure and both comprise an L-shaped plate (3). A first protection pad (4) is provided in a straight portion on one side of the L-shaped plate (3) so as to slide along the length direction. The first protection pad (4) is adjusted and moved by a screw rod (5). A second protection pad (6) is arranged on the straight portion on the other side of the L-shaped plate (3). The second protection pad (6) is connected to the first protection pad (4) by a chain (7). The two second protection pads (6) of the first corner protection assembly (1) and the second corner protection assembly (2) and the corner protection units are connected by a telescopic rope (8).
2. The corner protection device for prefabricated T-beam hoisting according to claim 1 is characterized in that: The edge of the L-shaped plate (3) located on one side of the second protective pad (6) is provided with a plurality of groups of first ear plates with holes (9), and the back side of the L-shaped plate (3) is provided with a plurality of groups of second ear plates with holes (10).
3. The corner protection device for prefabricated T-beam hoisting according to claim 1 is characterized in that: The telescopic rope (8) comprises a turnbuckle bolt (8.1), and both ends of the turnbuckle bolt (8.1) are connected to the steel wire rope (8.2).
4. The corner protection device for prefabricated T-beam hoisting according to claim 1 is characterized in that: The first protective pad (4) and the second protective pad (6) are provided with a rubber layer on one side close to the T-beam (11).