Automatic hoisting device for reinforcing steel bar coil

Abstract

The utility model discloses an automatic reinforcing steel bar coil hoisting device which comprises a supporting assembly, a movable arm assembly and a connecting assembly, the supporting assembly comprises a central column, a movable column and a positioning pile which are sequentially connected from top to bottom, and the central column is of a hollow cavity structure with an opening in the bottom; a plurality of limiting hooks and a first rotating shaft arranged on the limiting hooks are arranged below the movable column, the bottoms of the limiting hooks abut against the positioning pile, a limiting ring and a spring are sequentially arranged at the top of the movable column, and the movable arm assembly comprises a plurality of main supporting arms and binding rods arranged below the main supporting arms correspondingly; and steel bar locking hooks are fixed at the bottoms of the plurality of binding rods. The automatic hoisting device for the steel bar coil is simple in structure and reasonable in design, automatic hoisting of the steel bar coil can be easily achieved, the device and the steel bar coil do not need to be manually bound in the whole process, hoisting operation is facilitated, the hoisting process is simplified, and efficiency is improved.

Description

An automatic hoisting device for steel bar coils Technical Field

[0001] This utility model relates to a steel bar hoisting device, specifically an automatic steel bar coil hoisting device. Background Technology

[0002] The automatic rebar coil hoisting device is a specially designed device for hoisting rebar coils. It can automatically complete the hoisting operation without manual binding, thereby improving work efficiency and safety.

[0003] Before the automatic rebar hoisting device can hoist the rebar coil, workers need to manually use steel straps to bind the rebar coil to the device at multiple points before the hoisting device can lift the rebar coil. Since this process requires workers to participate in binding the rebar coil, it is time-consuming and labor-intensive, and the hoisting efficiency is low. Summary of the Invention

[0004] The purpose of this utility model is to provide an automatic rebar coil hoisting device with a simple structure and reasonable design, which can easily realize the automatic hoisting of rebar coils. The entire process does not require manual binding between the device and the rebar coil, thus facilitating the hoisting operation, simplifying the hoisting process, and improving efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic rebar coil hoisting device, comprising a support assembly, a movable arm assembly, and a connecting assembly. The support assembly includes a central column, a movable column, and a positioning pile connected sequentially from top to bottom. The central column is a hollow cavity structure with an opening at the bottom. The movable column enters the cavity of the central column from bottom to top, and the movable column fits against the inner wall of the cavity of the central column. Multiple limiting hooks and a first rotating shaft mounted on the multiple limiting hooks are provided below the movable column. All the multiple limiting hooks are handle-shaped, and the bottoms of the multiple limiting hooks are connected to the positioning pile. The pile is connected, and the top of the movable column is sequentially equipped with a limit ring and a spring. The spring is set vertically. The movable arm assembly includes multiple main support arms and restraint rods respectively set below the multiple main support arms. The bottom of each restraint rod is fixed with a steel bar locking hook. Each main support arm is equipped with a second pivot and a third pivot. The center of each restraint rod is equipped with a fourth pivot. The connecting assembly includes a bottom support column and multiple extension frames fixed to the outer circle of the bottom support column. The multiple restraint rods pass through the multiple extension frames respectively, and the multiple restraint rods are connected to the multiple extension frames respectively through the fourth pivot on them.

[0006] Preferably, a mounting hole is formed at the top of the cavity of the central column, the spring is located in the mounting hole, and the two ends of the spring are respectively connected to the limiting ring and the inner wall of the mounting hole.

[0007] Preferably, a sliding groove is also provided in the mounting hole, the limiting ring is fitted with the inner wall of the sliding groove, and the limiting ring is fixed to the upper end face of the movable column, so that the limiting ring can slide on the inner wall of the sliding groove.

[0008] Preferably, the plurality of first rotating shafts are all fixed on the movable column, and the plurality of first rotating shafts are distributed in the circumferential direction of the movable column.

[0009] Preferably, a hook is fixed to the upper end face of the central column. The hook has a U-shaped design and is used to connect with the gantry crane.

[0010] Preferably, multiple main support arms are connected to the central column via a second pivot on each arm, and multiple main support arms are connected to multiple restraint rods via a third pivot on each arm.

[0011] Preferably, each of the multiple extension frames has a movable opening that passes through both ends, and multiple restraint rods pass through the multiple movable openings from top to bottom, and multiple fourth rotating shafts are respectively installed on the multiple extension frames.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides an automatic rebar coil hoisting device, which includes a support assembly, a movable arm assembly, and a connecting assembly. The support assembly includes a central column, a movable column, and a positioning pile connected sequentially from top to bottom. The central column is a hollow cavity structure with an opening at the bottom. The movable column enters the cavity of the central column from bottom to top. Multiple limit hooks and a first rotating shaft set on the multiple limit hooks are provided at the bottom of the movable column. The bottom of the multiple limit hooks abuts against the positioning pile. Limit rings and springs are sequentially provided at the top of the movable column. The movable arm assembly includes multiple main support arms and a connecting assembly. The device includes multiple restraint rods below the main support arms, each with a steel bar locking hook fixed at its bottom. The connecting assembly includes a bottom support column and multiple outriggers fixed to the outer circle of the bottom support column. The restraint rods are connected to the outriggers via a third pivot. The automatic steel bar hoisting device has a simple overall structure and a reasonable design. When the device is hoisted by equipment such as a gantry crane, the multiple steel bar locking hooks are in a retracted state. Therefore, the entire device can easily and smoothly enter the inside of the steel bar coil without causing positional conflict with the steel bar coil, thus facilitating the positioning of the automatic steel bar hoisting device.

[0014] 2. This utility model features a spring and a movable column connected to the spring located below the central column. When all three limit hooks are separated from the movable column, and the gantry crane automatically lifts the rebar coil again, multiple main support arms are slightly raised, causing multiple restraint rods to extend outward along with multiple rebar locking hooks. This allows the rebar coil to be lifted from multiple positions, easily achieving automatic lifting of the rebar coil. Throughout the process, no manual binding between the device and the rebar coil is required, thus facilitating the lifting operation, simplifying the lifting process, and improving efficiency. Attached Figure Description

[0015] Figure 1 is a schematic diagram of one embodiment of the present utility model;

[0016] Figure 2 is a second schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 is a cross-sectional view of AA in Figure 2 of this utility model.

[0018] The reference numerals and names in the figure are as follows: 1. Support assembly; 11. Central column; 111. Mounting hole; 112. Slide groove; 12. Movable column; 13. Positioning pile; 14. Limiting hook; 15. First pivot; 16. Limiting ring; 17. Spring; 18. Hook; 2. Movable arm assembly; 21. Main support arm; 22. Restraint rod; 23. Rebar locking hook; 24. Second pivot; 25. Third pivot; 26. Fourth pivot; 3. Connecting assembly; 31. Bottom support column; 32. Outrigger; 321. Movable opening. Detailed Implementation

[0019] 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.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] Please refer to Figure 1. One embodiment of this utility model is an automatic hoisting device for steel coils, which includes a support assembly 1, a movable arm assembly 2, and a connecting assembly 3.

[0023] Please refer to Figure 2. The support assembly 1 includes a central column 11, a movable column 12, and a positioning pile 13 connected sequentially from top to bottom. Multiple limiting hooks 14 and first rotating shafts 15 mounted on the movable column 12 are provided below the movable column 12. The multiple limiting hooks 14 are handle-shaped, and their bottoms abut against the positioning piles 13. Multiple first rotating shafts 15 are fixed to the movable column 12 and distributed along the circumference of the movable column 12. A hook 18 with a U-shaped design is fixed to the upper surface of the central column 11 for connection with the gantry crane. The movable boom assembly 2 includes multiple main support arms 21 and restraining rods 22 respectively located below the main support arms 21. A steel bar locking hook 23 is fixed to the bottom of each restraining rod 22. Each main support arm... Each arm 21 is equipped with a second pivot 24 and a third pivot 25. Multiple main support arms 21 are connected to the central column 11 via the second pivot 24, and multiple main support arms 21 are connected to multiple restraint rods 22 via the third pivot 25. A fourth pivot 26 is provided at the center of each restraint rod 22. The connecting assembly 3 includes a bottom support column 31 and multiple extension frames 32 fixed to the outer circle of the bottom support column 31. Multiple restraint rods 22 pass through multiple extension frames 32, and multiple restraint rods 22 are connected to multiple extension frames 32 via the fourth pivot 26. Multiple extension frames 32 are provided with movable openings 321 that pass through both ends. Multiple restraint rods 22 pass through multiple movable openings 321 from top to bottom. Multiple fourth pivots 26 are installed on multiple extension frames 32.

[0024] Please refer to Figure 3. The central column 11 is a hollow cavity structure with an opening at the bottom. The movable column 12 enters the cavity of the central column 11 from bottom to top. The movable column 12 fits against the inner wall of the cavity of the central column 11. A limit ring 16 and a spring 17 are sequentially arranged on the top of the movable column 12. The spring 17 is vertically arranged. An installation hole 111 is formed on the top of the cavity of the central column 11. The spring 17 is located in the installation hole 111. The two ends of the spring 17 are respectively connected to the limit ring 16 and the inner wall of the installation hole 111. A sliding groove 112 is also provided in the installation hole 111. The limit ring 16 fits against the inner wall of the sliding groove 112, so that the limit ring 16 can slide on the inner wall of the sliding groove 112. The limit ring 16 is fixed to the upper end face of the movable column 12.

[0025] Please refer to Figures 1 to 3. In the operation of this utility model, the gantry crane is first connected to the hook 18. The gantry crane moves the entire device above the rebar coil and then lowers it to the inside of the rebar coil. Multiple rebar locking hooks 23 are close to the rebar coil. Then, the worker manually unlocks multiple limit hooks 14. The worker operates to rotate multiple limit hooks 14 along multiple first rotating shafts 15. Finally, multiple limit hooks 14 are disengaged from the positioning piles 13. After that, when the gantry crane lifts the central column 11 through the hook 18, the central column 11 moves slightly upward and drives the spring 17 to be stretched. The limit ring 16 will slide slightly a distance in the slide groove 112. At this time, multiple rebar locking hooks 23 and bottom support 31 remain stationary. The end of multiple main support arms 21 near the central column 11 moves slightly upward, causing multiple restraint rods 22 to rotate along multiple fourth rotating shafts 26, pushing multiple rebar locking hooks 23 outward. Multiple rebar locking hooks 23 can then automatically hook the entire rebar coil. After that, the entire rebar coil is automatically lifted as the gantry crane works.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic hoisting device for steel bar coils, characterized in that, include: Support assembly (1), the support assembly (1) includes a central column (11), a movable column (12) and a positioning post (13) connected sequentially from top to bottom. The central column (11) is a cavity structure with an opening at the bottom and a hollow interior. The movable column (12) enters the cavity of the central column (11) from bottom to top. Multiple limiting hooks (14) and a first rotating shaft (15) are provided below the movable column (12). The bottom of the multiple limiting hooks (14) abuts against the positioning post (13). A limiting ring (16) and a spring (17) are sequentially provided at the top of the movable column (12). Movable arm assembly (2), the movable arm assembly (2) includes multiple main support arms. (21) and restraint rods (22) respectively set below multiple main support arms (21), the bottom of multiple restraint rods (22) is fixed with steel bar locking hooks (23), each main support arm (21) is provided with a second rotating shaft (24) and a third rotating shaft (25), and the center of multiple restraint rods (22) is provided with a fourth rotating shaft (26); connecting assembly (3), the connecting assembly (3) includes a bottom support (31) and multiple extension frames (32) fixed to the outer circle of the bottom support (31), the multiple restraint rods (22) respectively pass through multiple extension frames (32), and the multiple restraint rods (22) are respectively connected to multiple extension frames (32) through the fourth rotating shaft (26) on them.

2. The automatic rebar coil hoisting device according to claim 1, characterized in that: The top of the cavity of the central column (11) has a mounting hole (111), the spring (17) is located in the mounting hole (111), and the two ends of the spring (17) are connected to the limiting ring (16) and the inner wall of the mounting hole (111) respectively.

3. The automatic rebar coil hoisting device according to claim 2, characterized in that: The mounting hole (111) is also provided with a sliding groove (112), the limiting ring (16) is in contact with the inner wall of the sliding groove (112), and the limiting ring (16) is fixed to the upper end face of the movable column (12).

4. The automatic rebar coil hoisting device according to claim 1, characterized in that: Multiple first rotating shafts (15) are fixed on the movable column (12), and the multiple first rotating shafts (15) are distributed in the circumferential direction of the movable column (12).

5. The automatic rebar coil hoisting device according to claim 1, characterized in that: A hook (18) is fixed to the upper end face of the central column (11), and the hook (18) is U-shaped.

6. The automatic rebar coil hoisting device according to claim 1, characterized in that: The multiple main support arms (21) are connected to the central column (11) via the second pivot (24) thereon, and the multiple main support arms (21) are connected to the multiple restraint rods (22) via the third pivot (25) thereon.

7. The automatic rebar coil hoisting device according to claim 1, characterized in that: Each of the multiple extension frames (32) is provided with a movable opening (321) that passes through both ends of the frame. Multiple binding rods (22) pass through multiple movable openings (321) from top to bottom. Multiple fourth rotating shafts (26) are respectively installed on multiple extension frames (32).

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