Hoisting structure for building construction

By introducing a ratchet and pawl limiting mechanism into the hoisting structure used in building construction, the problem of wire rope slippage in steel structure hoisting devices has been solved, improving hoisting safety and ease of operation.

CN224242583UActive Publication Date: 2026-05-15HAINAN CONSTR ENG MASCH CONSTR CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAINAN CONSTR ENG MASCH CONSTR CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing steel structure hoisting devices used in building construction, reduced friction between the traction rope and the drum can lead to slippage, affecting hoisting safety.

Method used

Design a hoisting structure for building construction, which adopts a combination of ratchet and pawl limiting mechanism. The rotation of the pawl is controlled by a hydraulic cylinder to prevent the wire rope from slipping. The ratchet and pawl work together to limit the movement of the wire rope during its winding and unwinding.

Benefits of technology

It effectively prevents wire ropes from slipping due to reduced friction during long-term use, thereby improving the safety and ease of operation of lifting equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224242583U_ABST
    Figure CN224242583U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of building construction equipment, in particular to a hoisting structure for building construction, which comprises a hoisting structure main body, and a limiting component is arranged on the upper side of the hoisting structure main body; the limiting assembly comprises inverted-concave-shaped frames installed on the outer walls of the two sides of the upper end of the hoisting structure body, hydraulic cylinders are installed on the tops of the inverted-concave-shaped frames, springs are arranged on the outer walls of one ends of the hydraulic cylinders in a sleeved mode, and protruding clamping blocks are arranged at the ends, close to the springs, of the hydraulic cylinders. The ratchet wheel arranged on the outer wall of the steel wire rope is matched with the pawl, and rotation of the pawl is limited and adjusted through the hydraulic cylinder, so that rotation of the ratchet wheel is conveniently controlled through the pawl, winding and unwinding of the steel wire rope are conveniently limited, and the phenomenon of wire slipping caused by reduction of friction force between the steel wire rope and a steel wire rope winding roller after long-term use of the steel wire rope is prevented; and therefore, the use safety of the hoisting equipment is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to a hoisting structure for building construction. Background Technology

[0002] Building construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of buildings. Steel structure in building construction is a structure composed of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. Due to its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields. In the construction of steel structure buildings, it is necessary to use hoisting devices to lift the steel structure parts and place them in the air for splicing operations. The hoisting device is generally a crane that controls the hook to pull the steel structure into the air.

[0003] A patent with publication number CN218261711 U discloses a steel structure hoisting device for building construction. This patent includes a base plate, control box, telescopic column, mounting base, rotating roller, C-shaped plate, drum, servo motor, traction rope, sleeve groove, telescopic plate, slot, connecting ring, pull rope, rotating shaft, and supporting diagonal rod. Steel structure parts can be hoisted by fitting them into the sleeve groove, making operation convenient. With the help of two pull ropes, the steel structure parts can be raised and lowered stably. When the steel structure rotates at high altitude, the hoisting device does not need to rotate as a whole; pulling the pull ropes allows for quick rotation of the steel structure parts. This is more suitable for steel structure splicing operations. However, this patent also has the following problems:

[0004] During the use of the aforementioned steel structure hoisting device for building construction, the friction between the traction rope and the drum is easily reduced due to prolonged use, which may lead to slippage of the traction rope and affect the hoisting process in building construction.

[0005] To address the above issues, it is necessary to design a hoisting structure for building construction to overcome these problems. Utility Model Content

[0006] The main objective of this invention is to provide a hoisting structure for building construction, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A hoisting structure for building construction includes a hoisting structure body, wherein a limit component is provided on the upper side of the hoisting structure body;

[0009] The limiting assembly includes an inverted concave frame installed on the outer walls of both sides of the upper end of the main body of the hoisting structure. A hydraulic cylinder is installed on the top of the inverted concave frame. A spring is fitted on the outer wall of one end of the hydraulic cylinder. A protruding locking block is provided at the end of the hydraulic cylinder near the spring. A connecting frame passes through one end of the hydraulic cylinder. A rotating shaft is installed on the upper side of the connecting frame. A pawl is provided on the outer wall of the rotating shaft. A rotating rod is installed on the lower side of the connecting frame. A ratchet is provided in the middle of the rotating rod. Limiting blocks are provided on both sides of the ratchet. A motor is connected to one end of the rotating rod through a coupling. Concave frames are installed on the outer walls of both ends of the rotating rod through bearings. An anti-slip block is provided in the middle of the upper part of the lower side of the concave frame.

[0010] As a preferred embodiment of this utility model, the inverted concave frame is detachably installed with respect to the main body of the hoisting structure, and the hydraulic cylinder is fixedly connected to the inverted concave frame.

[0011] As a preferred embodiment of this utility model, the hydraulic cylinder is sleeved with the spring, the hydraulic cylinder is fixedly connected with the protruding locking block, and the hydraulic cylinder is fixedly connected with the connecting frame.

[0012] As a preferred embodiment of this utility model, the protruding locking block is movably engaged with the pawl, the rotating shaft is rotatably connected to the pawl, the rotating rod is rotatably connected to the connecting frame via a bearing, the rotating rod is rotatably connected to the concave frame via a bearing, the rotating rod is fixedly connected to the ratchet, and the output end of the motor is fixedly connected to the rotating rod via a coupling.

[0013] As a preferred embodiment of this utility model, an installation frame is installed at one upper end of the main body of the hoisting structure, a wire rope winding roller is installed in the middle of the installation frame, one end of the wire rope winding roller passes through the installation frame and is connected to a drive motor through a coupling, a wire rope is wound around the outer wall of the wire rope winding roller, and a hook is provided at one end of the wire rope.

[0014] As a preferred embodiment of this utility model, the mounting frame is fixedly installed between itself and the main body of the hoisting structure, and the drive motor is fixedly connected to the wire rope winding roller through a coupling.

[0015] As a preferred embodiment of this utility model, the wire rope winding roller and the mounting frame are rotatably connected by bearings, and the wire rope is fixedly connected to the hook.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this utility model, a hoisting structure for building construction is designed. A ratchet and pawl are provided on the outer wall of the wire rope to cooperate. The rotation of the pawl is limited and adjusted by a hydraulic cylinder. This makes it easy to control the rotation of the ratchet through the pawl, thereby facilitating the limiting of the wire rope winding and unwinding. This prevents the wire rope from slipping due to the reduced friction between the wire rope and the wire rope winding roller after long-term use, thus improving the safety of the hoisting equipment.

[0019] 2. In this utility model, a hoisting structure for building construction is designed. By using a protruding locking block to lock in the middle of the rotating shaft inside the pawl, the rotation of the pawl can be limited, so that one end of the pawl is locked in the equator of the ratchet, which facilitates timely limiting of the rotation of the ratchet and is simple to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the hoisting structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of part A of this utility model;

[0022] Figure 3 This is a schematic diagram of the ratchet and pawl structure of this utility model.

[0023] In the diagram: 1. Main hoisting structure; 2. Hook; 3. Inverted concave frame; 4. Hydraulic cylinder; 5. Concave frame; 6. Anti-slip block; 7. Rotating rod; 8. Connecting frame; 9. Spring; 10. Protruding locking block; 11. Pawl; 12. Rotating shaft; 13. Ratchet; 14. Motor; 15. Limiting block; 16. Limiting assembly; 17. Mounting frame; 18. Drive motor; 19. Wire rope winding roller; 20. Wire rope. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-3 As shown, a hoisting structure for building construction includes a hoisting structure body 1, and a limit component 16 is provided on the upper side of the hoisting structure body 1.

[0026] The limiting component 16 includes an inverted concave frame 3 installed on the outer walls of both sides of the upper end of the main body 1 of the hoisting structure. A hydraulic cylinder 4 is installed on the top of the inverted concave frame 3. A spring 9 is sleeved on the outer wall of one end of the hydraulic cylinder 4. A protruding locking block 10 is provided at the end of the hydraulic cylinder 4 near the spring 9. A connecting frame 8 passes through one end of the hydraulic cylinder 4. A rotating shaft 12 is installed on the upper side of the connecting frame 8. A pawl 11 is provided on the outer wall of the rotating shaft 12. A rotating rod 7 is installed on the lower side of the connecting frame 8. A ratchet 13 is provided in the middle of the rotating rod 7. Limiting blocks 15 are provided on both sides of the ratchet 13. A motor 14 is connected to one end of the rotating rod 7 through a coupling. Concave frames 5 are installed on the outer walls of both ends of the rotating rod 7 through bearings. An anti-slip block 6 is provided in the middle of the upper part of the lower side of the concave frame 5.

[0027] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the inverted concave frame 3 is detachably installed with the main body 1 of the hoisting structure. The hydraulic cylinder 4 is fixedly connected to the inverted concave frame 3. The hydraulic cylinder 4 is sleeved with the spring 9. The hydraulic cylinder 4 is fixedly connected to the protruding locking block 10. The hydraulic cylinder 4 is fixedly connected to the connecting frame 8. The protruding locking block 10 is movably locked with the pawl 11. The rotating shaft 12 is rotatably connected to the pawl 11. The rotating rod 7 is rotatably connected to the connecting frame 8 through a bearing. The rotating rod 7 is rotatably connected to the concave frame 5 through a bearing. The rotating rod 7 is fixedly connected to the ratchet 13. The output end of the motor 14 is fixedly connected to the rotating rod 7 through a coupling. Next, an installation frame 17 is installed on one end of the upper side of the main body 1 of the hoisting structure. A wire rope winding roller 19 is installed in the middle of the installation frame 17. One end of the wire rope winding roller 19 passes through the installation frame 17 and is connected to a drive motor 18 through a coupling. A wire rope 20 is wound around the outer wall of the wire rope winding roller 19. A hook 2 is provided at one end of the wire rope 20. The installation frame 17 is fixedly installed with the main body 1 of the hoisting structure. The drive motor 18 is fixedly connected to the wire rope winding roller 19 through a coupling. The wire rope winding roller 19 is rotatably connected to the installation frame 17 through a bearing. The wire rope 20 is fixedly connected to the hook 2.

[0028] Among them, the motor 14 drives the ratchet 13 to achieve automatic reset, reducing the intensity of manual adjustment;

[0029] When the wire rope 20 needs to be released quickly, the hydraulic cylinder 4 retracts the piston rod, causing the protruding locking block 10 to disengage from the pawl 11. The pawl 11 then lifts around the rotating shaft 12, releasing the restriction on the ratchet 13.

[0030] If the wire rope 20 slips due to insufficient friction, the pawl 11 will automatically engage with the next tooth groove of the ratchet 13 under the action of the spring 9, preventing reverse rotation.

[0031] Among them, the steel wire rope 20 has a diameter of 12mm, a 6×37 structure, is wound around the winding roller 19, and has a fixed hook 2 at the end. It has a rated load of 3 tons and is equipped with a self-locking safety buckle.

[0032] The working process of this utility model is as follows: Using the hoisting structure designed in this solution for construction, after the main body 1 of the hoisting structure is moved to the construction site, the drive motor 18 is started to rotate the wire rope winding roller 19, facilitating the winding and unwinding of the wire rope 20 connected to the hook 2. This allows for easy adjustment of the height of the object being hoisted, simplifying the operation. The wire rope 20 passes between the anti-slip block 6 and the ratchet 13. The ratchet 13 assists in the winding and unwinding of the wire rope 20. When the wire rope 20 slips, the hydraulic cylinder 4 extends... The protruding locking block 10 at one end engages inside the pawl 11, causing its lower end to engage between the teeth of the ratchet 13 for limiting, preventing the wire rope 20 from being uncontrolled during winding and unwinding, thus achieving a limiting effect. When the limiting is stopped, the hydraulic cylinder 4 retracts, causing the pawl 11 to move away from the ratchet 11. The motor 14 drives the rotating rod 7 to rotate, simultaneously driving the ratchet 13 to rotate. The ratchet 13 meshes with the pawl 11, causing the pawl 11 to rotate through the rotating shaft 12, thereby facilitating the guidance of the wire rope 20 through the ratchet 13, improving the safety performance of the main body 1 of the hoisting structure, and making it easier for people to operate and use.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting structure for building construction, comprising a main hoisting structure (1), characterized in that: A limit assembly (16) is provided on the upper side of the main body (1) of the hoisting structure; The limiting component (16) includes an inverted concave frame (3) installed on the outer walls of both sides of the upper end of the hoisting structure body (1). A hydraulic cylinder (4) is installed on the top of the inverted concave frame (3). A spring (9) is fitted on the outer wall of one end of the hydraulic cylinder (4). A protruding locking block (10) is provided at the end of the hydraulic cylinder (4) near the spring (9). A connecting frame (8) passes through one end of the hydraulic cylinder (4). A rotating shaft (12) is installed on the upper side of the connecting frame (8). (12) has a pawl (11) on its outer wall. A rotating rod (7) is installed on the lower side of the connecting frame (8). A ratchet (13) is provided in the middle of the rotating rod (7). Limit blocks (15) are provided on both sides of the ratchet (13). A motor (14) is connected to one end of the rotating rod (7) through a coupling. A concave frame (5) is installed on the outer wall of both ends of the rotating rod (7) through bearings. An anti-slip block (6) is provided in the middle of the upper part of the lower side of the concave frame (5).

2. The hoisting structure for building construction according to claim 1, characterized in that: The inverted concave frame (3) is detachably installed with the main body of the hoisting structure (1), and the hydraulic cylinder (4) is fixedly connected with the inverted concave frame (3).

3. The hoisting structure for building construction according to claim 1, characterized in that: The hydraulic cylinder (4) is sleeved with the spring (9), the hydraulic cylinder (4) is fixedly connected with the protruding locking block (10), and the hydraulic cylinder (4) is fixedly connected with the connecting frame (8).

4. The hoisting structure for building construction according to claim 1, characterized in that: The protruding locking block (10) is movably engaged with the pawl (11), the rotating shaft (12) is rotatably connected with the pawl (11), the rotating rod (7) is rotatably connected with the connecting frame (8) through a bearing, the rotating rod (7) is rotatably connected with the concave frame (5) through a bearing, the rotating rod (7) is fixedly connected with the ratchet (13), and the output end of the motor (14) is fixedly connected with the rotating rod (7) through a coupling.

5. The hoisting structure for building construction according to claim 1, characterized in that: A mounting frame (17) is installed on one of the upper ends of the main body (1) of the hoisting structure. A wire rope winding roller (19) is installed in the middle of the mounting frame (17). One end of the wire rope winding roller (19) passes through the mounting frame (17) and is connected to a drive motor (18) through a coupling. A wire rope (20) is wound around the outer wall of the wire rope winding roller (19). A hook (2) is provided at one end of the wire rope (20).

6. The hoisting structure for building construction according to claim 5, characterized in that: The mounting frame (17) is fixedly installed between the main body of the hoisting structure (1), and the drive motor (18) is fixedly connected to the wire rope winding roller (19) through a coupling.

7. A hoisting structure for building construction according to claim 5, characterized in that: The wire rope winding roller (19) is rotatably connected to the mounting frame (17) via a bearing, and the wire rope (20) is fixedly connected to the hook (2).