Symmetrical multi-lifting-lug adjustable balance hoisting device

Abstract

The utility model relates to a symmetrical multi-lifting-lug balance-adjustable hoisting device, which belongs to the technical field of hoisting equipment for constructional engineering, and comprises a main beam, a main lifting lug fixedly arranged at the center of the top of the main beam, and a plurality of auxiliary lifting lugs fixedly arranged on two sides of the main beam and symmetrically distributed at equal intervals, a plurality of auxiliary lifting lugs are arranged on the two sides of the main beam, sling connecting devices with adjustable lengths and angles are mounted in the auxiliary lifting lugs, and pulleys which are matched with the auxiliary lifting lugs and abut against the bottoms of the inner sides of the auxiliary lifting lugs are rotationally arranged at the tops of the sling connecting devices. Compared with the prior art, the sling connecting device has the advantages that the structural deformation or damage risk caused by single-point stress is reduced, and a series of stable supporting points are formed to ensure balance and stability in the hoisting process, so that the safety and the reliability of hoisting operation are improved, and the flexibility and the adaptability of the hoisting operation are improved by flexibly adjusting the length and the angle of the sling connecting device.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction engineering hoisting equipment, specifically relating to a symmetrical multi-lug adjustable balance hoisting device. Background Technology

[0002] Construction engineering refers to the physical engineering project formed by the construction of various buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. During hoisting in construction engineering, lifting equipment and hoisting devices are used to lift prefabricated components or structures from the factory or construction site and move them to a designated location. For example, hoisting devices can be used to simultaneously hoist steel beams and tie rods of a factory building.

[0003] However, existing hoisting devices mostly adopt a single lifting point or asymmetrical layout, which results in uneven force during hoisting, easily leading to structural deformation or instability. They also cannot adapt to complex hoisting angle requirements and lack flexibility. Therefore, there is an urgent need for a hoisting device that combines balance and flexibility. In this regard, this application proposes a symmetrical multi-lug adjustable balance hoisting device. Utility Model Content

[0004] The purpose of this invention is to provide a symmetrical multi-lug adjustable balancing hoisting device to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A symmetrical multi-lug adjustable balancing hoisting device includes: a main beam, a main lug fixed at the center of the top of the main beam, and a plurality of auxiliary lugs fixed on both sides of the main beam and symmetrically distributed at equal distances; each auxiliary lug is equipped with a sling connection device with adjustable length and angle, and the top of the sling connection device is rotatably provided with a pulley that abuts against the bottom of the inner side of the auxiliary lug; the top of the sling connection device is provided with a positioning mechanism for positioning the pulley.

[0007] As a further optimization of this utility model, the sling connection device includes a connector, an upper locking buckle rotatably connected to the top of the connector, a lower locking buckle rotatably connected to the bottom of the connector, an iron chain installed at the bottom of the lower locking buckle, and a hook fixedly installed at the bottom of the iron chain.

[0008] As a further optimization of this utility model, the top thread of the upper lock is provided with an upper adjusting bolt that passes through the auxiliary lifting lug, and the pulley is rotatably connected to the outside of the upper adjusting bolt.

[0009] As a further optimization of this utility model, the bottom thread of the lower latch is provided with a lower adjusting bolt, one end of which passes through the iron chain.

[0010] As a further optimization of this utility model, the top and bottom of the upper adjusting bolt are provided with several limiting grooves.

[0011] As a further optimization of this utility model, the positioning mechanism includes a counterweight block that is slidably connected in the limiting groove of the upper adjusting bolt, and the two sides of the counterweight block abut against the outer wall of the counterweight block.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The design of multiple auxiliary lifting lugs on both sides of the main beam optimizes the force distribution during the lifting process, reduces the risk of structural deformation or damage caused by single-point stress, and forms a series of stable support points to ensure balance and stability during the lifting process, thereby improving the safety and reliability of the lifting operation. By flexibly adjusting the length and angle of the sling connection device, the flexibility and adaptability of the lifting operation are further enhanced.

[0014] 2. By rotating the pulley at the top of the sling connection device, wear between the auxiliary lifting lug and the sling connection device can be reduced during hoisting, and the angle of the sling connection device can be adjusted. By inserting the lower adjusting bolt inside the lower lock into different positions of the chain, the length of the sling connection device can be adjusted to meet the needs of different working conditions. Furthermore, the counterweight block will move down and become exposed under gravity, which facilitates the counterweight blocks on both sides of the pulley to limit the pulley, making it difficult for the pulley to slide laterally on the upper adjusting bolt, thereby improving the stability of the connection between the auxiliary lifting lug and the sling connection device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the connection of the main beam, main lifting lug, and auxiliary lifting lug of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the sling connection device of this utility model;

[0018] Figure 4 This is the utility model Figure 1 Enlarged view of the A-structure;

[0019] Figure 5 This is the utility model Figure 3 Enlarged view of the B-structure;

[0020] Figure 6 This is a structural schematic diagram of the counterweight block of this utility model.

[0021] In the diagram: 1. Main beam; 2. Main lifting lug; 3. Auxiliary lifting lug; 4. Sling connection device; 41. Connector; 42. Upper lock; 43. Lower lock; 44. Chain; 45. Hook; 46. Upper adjusting bolt; 47. Lower adjusting bolt; 48. Limiting groove; 49. Counterweight stop; 5. Pulley. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example

[0024] like Figure 1-2 As shown, a symmetrical multi-lug adjustable balance lifting device includes: a main beam 1, main lugs 2 and multiple auxiliary lugs 3. The main beam 1 is a long strip high-strength steel beam, which can be made of high-strength steel (such as Q345B) and has excellent bending and deformation resistance, and can bear large tonnage loads.

[0025] like Figure 1-2 As shown, the main lifting lug 2 is fixedly installed at the top center of the main beam 1. The main lifting lug 2 can be welded to the top center of the main beam 1 and is used to connect the main hook of external lifting equipment.

[0026] like Figure 1-2 As shown, multiple auxiliary lifting lugs 3 are fixed on both sides of the main beam 1 and symmetrically distributed at equal intervals. The multiple auxiliary lifting lugs 3 are symmetrically welded on both sides of the main beam 1 at a spacing of one meter to form a series of stable support points, ensuring uniform load distribution, thereby ensuring balance and stability during the hoisting process. The layout of the auxiliary lifting lugs 3 on both sides improves the structural strength and reduces the risk of stress concentration on one side. The main lifting lug 2 and the auxiliary lifting lugs 3 are welded with carbon dioxide shielded welding to ensure the strength of the weld.

[0027] This application enables the hoisting of steel frame workshops in construction projects. By utilizing multiple double-sided auxiliary lifting lugs 3, multiple objects can be hoisted at once, thereby achieving synchronous and efficient hoisting of steel beams and tie rods. This not only significantly improves the efficiency of hoisting operations but also greatly enhances the safety of the hoisting process, providing strong technical support for modern building construction.

[0028] like Figure 1-3 As shown, the auxiliary lifting lug 3 is equipped with a sling connection device 4 with adjustable length and angle. When the steel structure is hoisted, the main lifting lug 2 is connected to the main hook of the crane, and the auxiliary lifting lug 3 is used to fix the steel beam and tie rod through the sling connection device 4 to achieve synchronous hoisting.

[0029] like Figure 3-5As shown, the sling connection device 4 includes a connector 41, an upper locking buckle 42 rotatably connected to the top of the connector 41, a lower locking buckle 43 rotatably connected to the bottom of the connector 41, an iron chain 44 installed at the bottom of the lower locking buckle 43, and a hook 45 fixedly installed at the bottom of the iron chain 44. The upper locking buckle 42 has an upper adjusting bolt 46 threaded on its top, which passes through the auxiliary lifting lug 3. The connector 41 can connect the upper locking buckle 42 and the lower locking buckle 43. The iron chain 44 can connect the lower locking buckle 43 and the hook 45. The hook 45 can lift and transport objects such as steel beams and tie rods. After the upper adjusting bolt 46 is rotated, it will be inserted into the auxiliary lifting lug 3, thereby connecting the sling connection device 4 and the auxiliary lifting lug 3.

[0030] like Figure 3 and Figure 5 As shown, the bottom of the lower locking buckle 43 is threaded with a lower adjusting bolt 47. One end of the lower adjusting bolt 47 passes through the iron chain 44. By inserting the lower adjusting bolt 47 into different positions of the iron chain 44 within the lower locking buckle 43, the length of the sling connection device 4 can be adjusted to meet the needs of different working conditions. The lower adjusting bolt 47 can connect the iron chain 44 and the lower locking buckle 43. Both the upper adjusting bolt 46 and the lower adjusting bolt 47 consist of bolts and a handle fixed to one end of the bolts for the operator to rotate. The bolt ends of the upper adjusting bolt 46 and the lower adjusting bolt 47 are threaded into the upper locking buckle 42 and the lower locking buckle 43, respectively, thereby closing the openings of the upper locking buckle 42 and the lower locking buckle 43.

[0031] like Figures 3-5 As shown, the top of the sling connection device 4 is rotatably equipped with a pulley 5 that abuts against the bottom of the inner side of the auxiliary lifting lug 3. The pulley 5 is rotatably connected to the outside of the upper adjusting bolt 46. The pulley 5 can connect the auxiliary lifting lug 3 and the upper adjusting bolt 46. When lifting objects by pulling the bottom end of the sling connection device 4 at an angle, the pulley 5 at the top of the sling connection device 4 will rotate, thereby reducing the wear between the auxiliary lifting lug 3 and the sling connection device 4 during lifting, and also adjusting the angle of the sling connection device 4.

[0032] like Figure 3-6As shown, the top of the sling connection device 4 is provided with a positioning mechanism for positioning the pulley 5. The top and bottom of the upper adjusting bolt 46 are provided with several limiting grooves 48. The positioning mechanism includes a counterweight block 49 that is slidably connected in the limiting groove 48 of the upper adjusting bolt 46. The two sides of the counterweight block 49 are engaged with the outer wall of the counterweight block 49. The number of limiting grooves 48 and counterweight blocks 49 is the same, and the number can be four. The four counterweight blocks 49 are distributed on both sides of the pulley 5. The upper adjusting bolt 46 is provided with counterweight blocks 49 at both the top and bottom positions, so that the counterweight block 49 at the top of the upper adjusting bolt 46 will move down under gravity and retract into the limiting groove 48, while the counterweight block 49 at the bottom of the upper adjusting bolt 46 will move down under gravity and be exposed to position the pulley 5. The T-shaped counterweight block 49 can slide in the corresponding limiting groove 48 without disengaging.

[0033] The counterweight block 49 will move down and become exposed under gravity, so that the counterweight blocks 49 on both sides of the pulley 5 can limit the pulley 5, making it difficult for the pulley 5 to slide laterally on the upper adjusting bolt 46. This improves the stability of the connection between the auxiliary lifting lug 3 and the sling connection device 4. When the pulley 5 needs to be removed for inspection and maintenance, the upper adjusting bolt 46 can be unscrewed from the upper locking buckle 42 first, and then the counterweight block 49 can be pressed into the limiting groove 48. The pulley 5 can be removed by sliding the upper adjusting bolt 46 laterally.

[0034] It should be noted that this symmetrical multi-lug adjustable balance hoisting device allows the main lug 2 to be connected to the crane's main hook during steel structure hoisting, while the auxiliary lugs 3 are used to fix the steel beam and tie rod via the sling connection device 4, achieving synchronous hoisting. The design of multiple auxiliary lugs 3 on both sides of the main beam 1 optimizes the force distribution during hoisting, reduces the risk of structural deformation or damage caused by single-point stress, and forms a series of stable support points to ensure balance and stability during hoisting. This enables the synchronous and efficient hoisting of the steel beam and tie rod, significantly improving the efficiency of hoisting operations and greatly enhancing the safety of the hoisting process, providing strong technical support for modern building construction.

[0035] During hoisting, the hook 45 at the bottom of the sling connection device 4 can hoist and transport objects such as steel beams and tie rods. By inserting the lower adjusting bolt 47 into different positions of the chain 44 inside the lower locking buckle 43, the length of the sling connection device 4 can be adjusted to meet the needs of different working conditions. When hoisting objects by pulling the bottom end of the sling connection device 4 at an angle, the pulley 5 at the top of the sling connection device 4 will rotate, which can reduce the wear between the auxiliary lifting lug 3 and the sling connection device 4 during hoisting, and can also adjust the angle of the sling connection device 4. The length and angle of the sling connection device 4 can be flexibly adjusted, which improves the flexibility and adaptability of hoisting operations.

[0036] The counterweight block 49 will move down and become exposed under gravity, so that the counterweight blocks 49 on both sides of the pulley 5 can limit the pulley 5, making it difficult for the pulley 5 to slide laterally on the upper adjusting bolt 46, thereby improving the stability of the connection between the auxiliary lifting lug 3 and the sling connection device 4.

[0037] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A symmetrical multi-lug adjustable balancing hoisting device, characterized in that, include: The main beam (1), the main lifting lug (2) fixed at the center of the top of the main beam (1), and multiple auxiliary lifting lugs (3) fixed on both sides of the main beam (1) and symmetrically distributed at equal distances; The auxiliary lifting lug (3) is equipped with a sling connection device (4) with adjustable length and angle. The top of the sling connection device (4) is provided with a pulley (5) that fits against the bottom of the inner side of the auxiliary lifting lug (3). The top of the sling connection device (4) is provided with a positioning mechanism for positioning the pulley (5).

2. The symmetrical multi-lug adjustable balance hoisting device according to claim 1, characterized in that: The sling connection device (4) includes a connector (41), an upper lock buckle (42) rotatably connected to the top of the connector (41), a lower lock buckle (43) rotatably connected to the bottom of the connector (41), an iron chain (44) installed at the bottom of the lower lock buckle (43), and a hook (45) fixedly installed at the bottom of the iron chain (44).

3. The symmetrical multi-lug adjustable balance hoisting device according to claim 2, characterized in that: The top of the upper latch (42) is threaded with an upper adjusting bolt (46) that passes through the auxiliary lifting lug (3), and the pulley (5) is rotatably connected to the outside of the upper adjusting bolt (46).

4. A symmetrical multi-lug adjustable balance hoisting device according to claim 2, characterized in that: The bottom thread of the lower latch (43) is provided with a lower adjusting bolt (47), one end of which passes through the iron chain (44).

5. A symmetrical multi-lug adjustable balance hoisting device according to claim 3, characterized in that: The upper adjusting bolt (46) has several limiting grooves (48) at its top and bottom.

6. A symmetrical multi-lug adjustable balance hoisting device according to claim 5, characterized in that: The positioning mechanism includes a counterweight block (49) that is slidably connected in the limiting groove (48) of the upper adjusting bolt (46), and the two sides of the counterweight block (49) abut against the outer wall of the counterweight block (49).

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