Reinforcing steel bar hoisting device for building construction

Abstract

The utility model relates to the technical field of reinforcing steel bar hoisting, in particular to a reinforcing steel bar hoisting device for building construction. According to the technical scheme, the device comprises a body, a two-way threaded rod is rotationally installed in the center of the body, a plurality of sliding rods are fixedly installed around the two ends of the body, the outer walls of the sliding rods are slidably connected with moving blocks, and a plurality of sleeves are fixedly installed around one end of each moving block. When the device is used, the device is hung on a cable of a crane through the hook, the control device moves to a steel bar, the telescopic motor is controlled, the telescopic motor can press the lifting table downwards, the lifting table can drive the connecting rod to move while pressing downwards, and the other end of the connecting rod is connected to the clamping jaw. The clamping jaws can be driven to rotate around the fixing rod, when the two clamping jaws rotate around the fixing rod at the same time, the steel bar can be clamped, the rotating motor is controlled, when the rotating motor is started, the motor gear can be driven to rotate, and the motor gear can drive the transmission gear in the center of the two-way threaded rod to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar lifting, in particular to a steel bar lifting device for building construction. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, sometimes square with rounded corners, including plain round steel, ribbed steel, and twisted steel. Rebar for reinforced concrete refers to straight bars or coiled steel used for reinforced concrete reinforcement. Its appearance is divided into plain round steel and deformed steel. The delivery state is straight bar and coiled. During the construction process, a lifting device is often required to transport the steel to the place where it is needed. However, in actual use, similar steel lifting devices still have many defects. For example, the existing steel lifting device cannot transport steel bars of different lengths more safely when in use. When the steel is lifted, it often slides to the heavier end due to the different weights at both ends. Utility Model Content

[0003] The purpose of the utility model is to provide a steel bar lifting device for construction to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel bar lifting device for construction, comprising a main body, a bidirectional threaded rod is rotatably installed at the center of the main body, a plurality of groups of sliding rods are fixedly installed around both ends of the main body, a moving block is slidably connected to the outer wall of the sliding rod, and a plurality of groups of sleeves are fixedly installed around one end of the moving block.

[0005] When using the steel bar lifting device for construction, the device is first hung on the cable of the crane through a hook, and the control device is moved to the steel bar. By controlling the telescopic motor, the telescopic motor can press the lifting platform downward, and the lifting platform can drive the connecting rod to move while pressing downward. The other end of the connecting rod is connected to the clamping claw, which can drive the clamping claw to rotate around the fixed rod. When the two sets of clamping claws rotate around the fixed rod at the same time, the steel bar can be clamped. When it is necessary to lift steel bars of different lengths, the rotating motor is controlled. When the rotating motor is started, it can drive the motor gear to rotate. The motor gear can drive the transmission gear in the center of the two-way threaded rod to rotate, thereby rotating the two-way threaded rod. When the two-way threaded rod rotates forward, the threaded barrel can be extended outward, and can be pulled back when reversed.

[0006] As a preferred technical solution of the utility model, the sliding rod is slidably connected with the sleeve, and a threaded barrel is fixedly installed at the center of one end of the moving block, and the threaded barrel cooperates with the bidirectional threaded rod.

[0007] As a preferred technical solution of the utility model, a main body groove is provided inside the main body, and a rotating motor is fixedly installed inside the main body groove.

[0008] As a preferred technical solution of the utility model, a motor gear is fixedly installed at the output end of the rotating motor, and a transmission gear is arranged in the middle of the bidirectional threaded rod, and the transmission gear is meshed with the motor gear; by providing the motor gear, the motor gear can drive the bidirectional threaded rod to rotate forward or reverse.

[0009] As a preferred technical solution of the utility model, fixed rods are fixedly installed on both sides of the lower end of the moving block, a telescopic motor is fixedly installed on the upper end of the moving block, and the output end of the telescopic motor passes through the moving block and is connected to a lifting platform.

[0010] As a preferred technical solution of the utility model, fixed shafts are arranged around the lifting platform, the fixed shafts are rotatably connected with connecting rods, connecting rod holes are opened at both ends of the connecting rods, and one group of the connecting rod holes is rotatably connected to the fixed shafts; by providing the connecting rods, the connecting rods can drive the clamps to clamp or relax when the position of the lifting platform changes.

[0011] As a preferred technical solution of the utility model, a clamping claw is rotatably connected to the outer wall of the fixing rod, and clamping claw holes are opened on both sides of the clamping claw, and the clamping claw holes are rotatably connected to the fixing rod.

[0012] As a preferred technical solution of the utility model, a clamping claw rod is fixedly installed on the upper end of the clamping claw, the outer wall of the clamping claw rod is connected to another group of connecting rod holes, and a hook is fixedly installed on the upper end of the main body; by providing the hook, the device can be connected to the crane through the hook.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When using the steel bar lifting device for construction, the device is first hung on the cable of the crane through a hook, and the control device is moved to the steel bar. By controlling the telescopic motor, the telescopic motor can press the lifting platform downward, and the lifting platform can drive the connecting rod to move while pressing downward. The other end of the connecting rod is connected to the clamping claw, which can drive the clamping claw to rotate around the fixed rod. When the two sets of clamping claws rotate around the fixed rod at the same time, the steel bar can be clamped. When it is necessary to lift steel bars of different lengths, the rotating motor is controlled. When the rotating motor is started, it can drive the motor gear to rotate. The motor gear can drive the transmission gear in the center of the two-way threaded rod to rotate, thereby rotating the two-way threaded rod. When the two-way threaded rod rotates forward, the threaded barrel can be extended outward, and can be pulled back when reversed.

[0015] By providing a bidirectional threaded rod, when it is necessary to lift steel bars of different lengths, the rotating motor is controlled. When the rotating motor is started, it can drive the motor gear to rotate, and the motor gear can drive the transmission gear in the center of the bidirectional threaded rod to rotate, thereby causing the bidirectional threaded rod to rotate. When the bidirectional threaded rod rotates forward, the threaded barrel can be extended outward, and can be pulled back when reversed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the partial explosion structure of the utility model;

[0019] Figure 4 It is a partial half-section structure schematic diagram of the utility model.

[0020] In the figure: 1. main body; 2. hook; 3. moving block; 4. clamping claw; 5. telescopic motor; 6. sleeve; 7. threaded cylinder; 8. bidirectional threaded rod; 9. sliding rod; 10. clamping claw rod; 11. fixed rod; 12. clamping claw hole; 13. lifting platform; 14. fixed shaft; 15. connecting rod; 16. connecting rod hole; 17. motor gear; 18. main body slot; 19. transmission gear; 20. rotating motor. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] like Figure 1 - Figure 4 As shown, the utility model proposes a steel bar lifting device for construction, including a main body 1, a bidirectional threaded rod 8 is rotatably installed at the center of the main body 1, a plurality of groups of sliding rods 9 are fixedly installed around both ends of the main body 1, a moving block 3 is slidably connected to the outer wall of the sliding rod 9, and a plurality of groups of sleeves 6 are fixedly installed around one end of the moving block 3.

[0024] The sliding rod 9 is slidably connected with the sleeve 6 , and a threaded barrel 7 is fixedly installed at the center of one end of the moving block 3 , and the threaded barrel 7 is matched with the bidirectional threaded rod 8 .

[0025] A main body groove 18 is formed inside the main body 1 , and a rotating motor 20 is fixedly installed inside the main body groove 18 .

[0026] A motor gear 17 is fixedly mounted on the output end of the rotating motor 20 , and a transmission gear 19 is arranged in the middle of the bidirectional threaded rod 8 , and the transmission gear 19 is meshed with the motor gear 17 .

[0027] The working principle of a steel bar lifting device for construction based on Example 1 is: when using the steel bar lifting device for construction, the device is first hung on the cable of the crane through the hook 2, and the control device is moved to the steel bar. By controlling the telescopic motor 5, the telescopic motor 5 can press the lifting platform 13 downward, and the lifting platform 13 can drive the connecting rod 15 to move while pressing downward. The other end of the connecting rod 15 is connected to the clamping claw 4, which can drive the clamping claw 4 to rotate around the fixed rod 11. When the two groups of clamping claws 4 rotate around the fixed rod 11 at the same time, the steel bar can be clamped. When it is necessary to lift steel bars of different lengths, the rotating motor 20 is controlled. When the rotating motor 20 is started, it can drive the motor gear 17 to rotate. The motor gear 17 can drive the transmission gear 19 in the center of the bidirectional threaded rod 8 to rotate, thereby rotating the bidirectional threaded rod 8. When the bidirectional threaded rod 8 rotates forward, the threaded barrel 7 can be extended outward, and it can be pulled back when it is reversed.

[0028] Embodiment 2

[0029] like Figure 3 As shown, a steel bar lifting device for construction proposed by the utility model, compared with the first embodiment, this embodiment also includes: fixed rods 11 are fixedly installed on both sides of the lower end of the moving block 3, a telescopic motor 5 is fixedly installed on the upper end of the moving block 3, the output end of the telescopic motor 5 passes through the moving block 3 and is connected to a lifting platform 13, fixed shafts 14 are arranged around the lifting platform 13, the fixed shaft 14 is rotatably connected to a connecting rod 15, both ends of the connecting rod 15 are provided with connecting rod holes 16, one group of connecting rod holes 16 is rotatably connected to the fixed shaft 14, the outer wall of the fixed rod 11 is rotatably connected to a clamping claw 4, both sides of the clamping claw 4 are provided with clamping claw holes 12, the clamping claw holes 12 are rotatably connected to the fixed rod 11, the upper end of the clamping claw 4 is fixedly installed with a clamping claw rod 10, the outer wall of the clamping claw rod 10 is connected to another group of connecting rod holes 16, and the upper end of the main body 1 is fixedly installed with a hook 2.

[0030] In this embodiment, Figure 4 As shown, by providing a motor gear 17, the motor gear 17 can drive the bidirectional threaded rod 8 to rotate forward or reverse; Figure 3 As shown, by providing a connecting rod 15, when the position of the lifting platform 13 changes, the connecting rod 15 can drive the clamping claw 4 to clamp or loosen; Figure 1 As shown, by providing a hook 2 , the device can be connected to a crane via the hook 2 .

[0031] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A steel bar lifting device for construction, comprising a main body (1), characterized in that: A bidirectional threaded rod (8) is rotatably mounted at the center of the main body (1), and a plurality of groups of sliding rods (9) are fixedly mounted around both ends of the main body (1). A moving block (3) is slidably connected to the outer wall of the sliding rod (9), and a plurality of groups of sleeves (6) are fixedly mounted around one end of the moving block (3).

2. A steel bar lifting device for construction according to claim 1, characterized in that: The sliding rod (9) is slidably connected to the sleeve (6); a threaded barrel (7) is fixedly mounted at the center of one end of the moving block (3); the threaded barrel (7) cooperates with the bidirectional threaded rod (8).

3. A steel bar lifting device for construction according to claim 2, characterized in that: A main body groove (18) is provided inside the main body (1), and a rotating motor (20) is fixedly installed inside the main body groove (18).

4. A steel bar lifting device for construction according to claim 3, characterized in that: A motor gear (17) is fixedly mounted on the output end of the rotating motor (20), and a transmission gear (19) is arranged in the middle of the bidirectional threaded rod (8), wherein the transmission gear (19) meshes with the motor gear (17).

5. A steel bar lifting device for construction according to claim 4, characterized in that: Fixed rods (11) are fixedly mounted on both sides of the lower end of the moving block (3), a telescopic motor (5) is fixedly mounted on the upper end of the moving block (3), and an output end of the telescopic motor (5) passes through the moving block (3) and is connected to a lifting platform (13).

6. A steel bar lifting device for construction according to claim 5, characterized in that: The lifting platform (13) is provided with fixed shafts (14) on all sides, and the fixed shafts (14) are rotatably connected to connecting rods (15). Both ends of the connecting rods (15) are provided with connecting rod holes (16), and one group of the connecting rod holes (16) is rotatably connected to the fixed shafts (14).

7. A steel bar lifting device for construction according to claim 6, characterized in that: A clamping claw (4) is rotatably connected to the outer wall of the fixing rod (11), and clamping claw holes (12) are provided on both sides of the clamping claw (4), and the clamping claw holes (12) are rotatably connected to the fixing rod (11).

8. A steel bar lifting device for construction according to claim 7, characterized in that: A clamping claw rod (10) is fixedly mounted on the upper end of the clamping claw (4), the outer wall of the clamping claw rod (10) is connected to another group of connecting rod holes (16), and a hook (2) is fixedly mounted on the upper end of the main body (1).

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