Steel material hoisting balancing device

Abstract

The utility model discloses a kind of steel hoisting balancing devices, belong to hoisting equipment field.The hoisting balancing device of the utility model includes lifting ring, lifting appliance piece and multiple rotating shafts mutually parallel, the lifting appliance piece includes at least two groups, each group lifting appliance piece includes two identical connecting arms and two identical lifting arms, two two connecting arms and two lifting arms are respectively symmetrical with lifting ring, two connecting arms and two lifting arms are sequentially connected into four side structures with upper and lower adjacent side equal, each connecting place is realized by multiple rotating shafts one-to-one hinged, two lifting arm bottom end downwardly extending is formed with relatively clamped arc mouth, each rotating shaft extends transversely and connects remaining lifting appliance piece in same way, the lifting ring is fixed in the rotating shaft center top of uppermost side.The utility model can hoist and carry steel by multiple groups of self-weight locking lifting appliance, with the advantages of high structural rigidity, hoisting swing amplitude is small.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, specifically, it relates to a steel hoisting balancing device. Background Technology

[0002] The repair workshop primarily undertakes various steel structure projects, processed parts, motor repair, and air conditioning repair. During the construction of steel structure projects, large steel pipes and materials need to be transported using overhead cranes, typically employing hoisting slings. However, transporting steel pipes and materials using hoisting slings is cumbersome and inefficient, requiring the slings to be secured to the middle of the steel material. Furthermore, manually lifting the steel and securing the slings poses safety hazards, increasing the risk of falling object injuries to workers.

[0003] Bulk steel needs to be hoisted for transport. Traditionally, I-beams are hoisted by binding with steel wire ropes. This method is time-consuming, labor-intensive, and inefficient. Furthermore, the contact area between the steel wire rope and the I-beam is small, resulting in low friction. If the center of gravity shifts slightly or the steel is impacted during hoisting, it is easy for the steel to slip, which is very dangerous.

[0004] Currently, Chinese utility model patent CN203284055U discloses an H-beam lifting device, which has a left hook and a right hook respectively with their openings facing each other. The left hook and the right hook are hinged together at the neck to form a lifting device with a "T"-shaped opening that can be locked onto the top flange of the H-beam. The top of the left hook extends upward to form a lifting rod with a lifting hole. A hanging plate is provided, which can be connected between the left hook and the right hook to lock the left hook and the right hook onto the top flange of the H-beam.

[0005] The above structure uses a T-shaped opening for limiting and a hanging plate for locking to achieve clamping and lifting of the I-beam. However, the locking method of the hanging plate and the locking pin of the lifting device limits the types of I-beams that can be lifted. Furthermore, when the type of I-beam does not match the T-shaped opening, the I-beam is prone to lateral sliding, posing a safety hazard.

[0006] For example, Chinese invention patent CN105314529A discloses a steel pipe lifting clamp with an anti-slip coating, which includes two clamping arms arranged in a cross pattern. The steel pipe lifting clamp with the anti-slip coating also includes two connecting handles. A first connecting hole is provided in the middle of the clamping arm, a second connecting hole is provided at the upper end of the clamping arm, and an arc-shaped clamping plate is provided at the lower end of the clamping arm. The two clamping arms are rotatably connected through the first connecting hole, and the lower ends of the two connecting handles are rotatably connected to the second connecting hole respectively. The upper ends of the two connecting handles are rotatably connected to each other.

[0007] The above structure uses two clamping arms connected by scissors to self-lock under the weight of the steel pipe. However, this structure has two drawbacks: firstly, it only uses a single set of double arms, resulting in limited clamping force and weak structural rigidity; secondly, it lacks a locking mechanism and only locks itself by its own weight, causing swaying during the transfer or dislocation of the steel pipe, which poses a significant safety hazard.

[0008] To address this issue, we propose a steel hoisting balancing device. Utility Model Content

[0009] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a steel hoisting and balancing device.

[0010] To solve the above problems, the technical solution adopted by this utility model is as follows: A steel lifting and balancing device includes lifting rings, lifting tools, and multiple parallel rotating shafts. The lifting device comprises at least two sets, each set including two identical connecting arms and two identical booms. Each pair of connecting arms and booms is symmetrical about the lifting ring. The connecting arms and booms are sequentially connected to form a quadrilateral structure with symmetrical upper and lower adjacent sides. Each connection is achieved by hinges of multiple pivots. The bottom ends of the two booms extend downwards to form opposing clamping arcs. Each of the aforementioned pivots extends laterally and connects to the remaining lifting components in the same manner, with the lifting ring fixed at the top center of the uppermost pivot.

[0011] Furthermore, the lifting device consists of two sets, with the two sets of lifting devices symmetrical about the lifting rings.

[0012] Furthermore, one set of the lifting components is also provided with a hanging plate and a locking pin. The locking pin is fixed on the boom, the top end of the hanging plate is hinged to the connecting arm, and the bottom end can be locked with the locking pin.

[0013] Furthermore, a washer and a bushing are also fixed on the rotating shaft. The washer is fixed to the outside of the lifting device, and the bushing is fixed between the connecting arm and the boom in each set of lifting devices. A lifting plate is also integrally fixed to the uppermost side wall of the rotating shaft. The washer cooperates with the lifting plate to limit the position of the connecting arm, and the bushing cooperates with the washer to limit the position of the boom.

[0014] Furthermore, the lifting plate is an isosceles trapezoid that is narrower at the top and wider at the bottom, and the lifting ring is fixed to the center of the top of the lifting plate.

[0015] Furthermore, multiple reinforcing ribs are fixed on both sides of the hoisting plate, and the reinforcing ribs are connected and fixed to the uppermost rotating shaft.

[0016] Furthermore, the arc corresponding to the arc opening is a circular arc with an arc angle of not less than 90°.

[0017] Furthermore, the inner wall of the arc-shaped opening is provided with anti-slip texture.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model utilizes two connecting arms in each lifting device to cooperate with two booms to form a kite-shaped structure with two adjacent opposite sides of equal length. The four vertices of the structure are hinged by four pivots, satisfying the required rotational freedom of each arm. During actual lifting, only the uppermost pivot needs to be lifted by the lifting ring. The arcs extending from the bottom ends of the two booms can change along the height to achieve relative clamping or relative loosening. Simultaneously, the hanging plates and locking pins set on the lifting device achieve secondary locking during the lifting process, avoiding unnecessary shaking during the transfer of steel. The overall structure is more rigid and safer. Attached Figure Description

[0019] Figure 1 This is a front view of the hoisting balancing device of this utility model; Figure 2 This is a side view of the hoisting balancing device of this utility model; In the diagram: 1. Connecting shaft; 2. Connecting arm; 3. Boom; 4. Arc opening; 5. Locking pin; 6. Hanging plate; 7. Lifting plate; 8. Bushing; 9. Reinforcing rib; 10. Washer. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments.

[0021] Example 1 like Figure 1 , Figure 2 As shown, in this embodiment, a steel lifting and balancing device includes lifting rings, lifting tools, and multiple parallel rotating shafts. The lifting device comprises at least two sets, each set including two identical connecting arms and two identical booms. Each pair of connecting arms and booms is symmetrical about the lifting ring. The connecting arms and booms are sequentially connected to form a quadrilateral structure with symmetrical upper and lower adjacent sides. Each connection is achieved by hinges of multiple pivots. The bottom ends of the two booms extend downwards to form opposing clamping arcs. Each of the aforementioned pivots extends laterally and connects to the remaining lifting components in the same manner, with the lifting ring fixed at the top center of the uppermost pivot.

[0022] For limiting the position of each lifting device, this embodiment also fixes a washer and a bushing on the rotating shaft. The washer is fixed to the outside of the lifting device, and the bushing is fixed between the connecting arm and the boom in each group of lifting devices. The uppermost rotating shaft sidewall is also integrally fixed with a lifting plate. The washer cooperates with the lifting plate to limit the position of the connecting arm, and the bushing cooperates with the washer to limit the position of the boom.

[0023] As can be seen from the above structure, in order to avoid the limitations of rigidity and applicability of existing hoisting structures, this utility model also uses scissor-type connecting arms and booms for cooperation. Since the two connecting arms and two booms in each hoisting component can cooperate with each other to form a kite-shaped structure with two adjacent opposite sides of equal length, the four vertices of the structure are hinged by four pivots to meet the rotational freedom required by each arm. The four pivots are also arranged with two on the top and two on the middle. Therefore, during actual hoisting, it is only necessary to lift the uppermost pivot through the lifting ring. The arcs extending from the bottom of the two booms can change along the height to achieve relative clamping or relative relaxation.

[0024] Furthermore, to ensure structural symmetry and further enhance structural rigidity and strength, the lifting device is configured in two sets, with the two sets of lifting devices symmetrically positioned around the lifting ring. The lifting plate is an isosceles trapezoid, narrower at the top and wider at the bottom, with the lifting ring fixed to the center of the top of the lifting plate. Multiple reinforcing ribs are also fixed to both sides of the lifting plate, and these reinforcing ribs are connected and fixed to the uppermost rotating shaft.

[0025] Similarly, to avoid unnecessary swaying during steel transfer, this solution, in addition to the self-locking mechanism of the arc-shaped opening at the bottom of the boom, also includes a hanging plate and a locking pin on one of the lifting components. The locking pin is fixed to the boom, and the top of the hanging plate is hinged to the connecting arm, while the bottom can be locked with the locking pin. When the lifting component is in the lifting state, the hanging plate will continuously approach the locking pin and reach equilibrium at a certain point, i.e., the hanging plate and locking pin are locked tightly. After locking, the swing freedom of the connecting arm and the boom is restricted, and they no longer move, allowing the steel within the corresponding arc-shaped opening to be stably clamped. Based on actual design requirements, when applying steel structures such as pipes, the corresponding arc of the arc opening can be designed as a circular arc with an arc angle of not less than 90°. Similarly, anti-slip textures can be provided on the inner wall of the arc opening to further improve the clamping force of the steel. By utilizing the inertia of the crane lifting the steel, the effect of self-locking and rapid adjustment to accommodate steel of various sizes can be achieved.

[0026] The actual application process is as follows: First, place the steel to be hoisted flat on the ground. Then, install the steel balance clamp onto the overhead crane hook. Place the steel balance clamp hook in the middle of the steel. Start the overhead crane, and use the crane's lifting mechanism to automatically lock the steel in place using its own weight. Hoist the steel to the designated construction location to complete the operation.

[0027] After repeated testing, its performance meets the requirements for lifting steel, effectively preventing injuries to construction workers from falling objects while lifting steel, significantly saving steel lifting time, improving work efficiency, and the steel balance clamp is highly durable, saving on the cost of purchasing lifting slings.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A steel hoisting balancing device, characterized in that, Includes lifting rings, lifting devices, and multiple parallel rotating shafts. The lifting device comprises at least two sets, each set including two identical connecting arms and two identical booms. Each pair of connecting arms and booms is symmetrical about the lifting ring. The connecting arms and booms are sequentially connected to form a quadrilateral structure with symmetrical upper and lower adjacent sides. Each connection is achieved by hinges of multiple pivots. The bottom ends of the two booms extend downwards to form opposing clamping arcs. Each of the aforementioned pivots extends laterally and connects to the remaining lifting components in the same manner, with the lifting ring fixed at the top center of the uppermost pivot.

2. The steel hoisting balancing device according to claim 1, characterized in that, The lifting device consists of two sets, with the two sets of lifting devices symmetrical about the lifting rings.

3. A steel hoisting balancing device according to claim 2, characterized in that, One set of the lifting components is also provided with a hanging plate and a locking pin. The locking pin is fixed on the boom, the top of the hanging plate is hinged to the connecting arm, and the bottom end can be locked with the locking pin.

4. A steel hoisting balancing device according to claim 1, characterized in that, The rotating shaft is also fixed with washers and bushings. The washers are fixed to the outside of the lifting device, and the bushings are fixed between the connecting arm and the boom in each set of lifting devices. The uppermost rotating shaft sidewall is also integrally fixed with a lifting plate. The washers cooperate with the lifting plate to limit the position of the connecting arm, and the bushings cooperate with the washers to limit the position of the boom.

5. The steel hoisting and balancing device according to claim 4, characterized in that, The lifting plate is an isosceles trapezoid that is narrower at the top and wider at the bottom, and the lifting ring is fixed to the center of the top of the lifting plate.

6. A steel hoisting balancing device according to claim 5, characterized in that, Multiple reinforcing ribs are also fixed on both sides of the hoisting plate, and the reinforcing ribs are connected and fixed to the uppermost rotating shaft.

7. A steel hoisting balancing device according to claim 1, characterized in that, The arc corresponding to the arc opening is a circular arc with an arc angle of not less than 90°.

8. A steel hoisting balancing device according to claim 7, characterized in that, The inner wall of the arc-shaped opening is provided with anti-slip texture.

Images