A lifting device for construction

Abstract

The utility model discloses a hoist for building construction relates to building construction technical field, including support arm, both ends of support arm are connected with the lifting hook, and the movable end of two lifting hooks is connected with the clamping block, and two clamping blocks all are equipped with the clamping groove in the inside, the middle of support arm bottom is connected with the telescopic link, and the bottom of telescopic link is rotatably connected with the rotating block, the bottom of rotating block is connected with the limit block, and both ends of limit block all are matched with corresponding clamping groove. The utility model drives the adjacent mechanism to fall through support arm, and the one end of limit block is lifted up to the lifting belt of the hoisting device to be waited for, at this moment, telescopic link and spring contract, and limit block rotates along rotating block simultaneously, make limit block and the one end of lifting belt close separate clamping groove, at this moment, the lifting belt is passed through limit block and corresponding clamping block and is put into the lifting hook, and the other end is same, and the multi -hoisting point hoisting of hoisting device to be waited for is completed.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a hoisting tool for building construction. Background Technology

[0002] Lifting equipment used in construction is a type of equipment specifically designed for lifting and moving heavy objects. It comes in various forms and uses and plays a vital role in modern construction sites, effectively improving work efficiency and safety.

[0003] The structure of lifting hooks varies depending on the specific application and design requirements, but it generally includes the following main parts and features: Main structure: The main body of the hook is usually made of high-strength alloy steel or other high-temperature resistant, high-strength materials, ensuring that the hook can withstand high pressure and heavy loads when lifting heavy objects; Lifting ring or lifting hole: The top of the hook usually has a lifting ring or a lifting hole for connecting the lifting equipment, such as a crane, tower crane, winch, etc. The design of the lifting ring or lifting hole must be sufficiently robust to ensure the safety and stability of the lifting operation.

[0004] Most lifting devices on the market today are single-hook lifting devices. Single-hook lifting devices have the following problems in actual use: the load-bearing capacity of a single hook is limited. When lifting heavy or uneven objects, it may not meet the requirements for safe lifting, because excessive load may cause the hook to deform or break, resulting in an accident; a single hook may cause the object to tilt or become unstable during lifting, especially when lifting long or large objects. A single lifting point may not be able to keep the object level and stable. In view of the above problems, a lifting device with multiple hooks is designed. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a lifting tool for construction to solve the technical problem that traditional lifting tools are ineffective when carrying heavy or uneven objects.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a construction hoisting tool, including a support arm, with hooks connected to both ends of the support arm, and locking blocks connected to the movable ends of the two hooks, each locking block having a locking groove inside; a telescopic rod connected to the middle of the bottom surface of the support arm, with a rotating block rotatably connected to the bottom end of the telescopic rod; a limiting block connected to the bottom surface of the rotating block, with both ends of the limiting block engaging with corresponding locking grooves; the hooks and support arm are made of alloy steel with excellent strength and hardness; a spring is connected between the support arm and the rotating block, and the spring is sleeved on the outside of the telescopic rod.

[0007] By adopting the above technical solution, the support arm drives the adjacent mechanism to fall, and lifts one end of the limit block upward with the lifting strap of the device to be lifted. At this time, the telescopic rod and spring retract, and the limit block rotates along the rotating block, so that the end of the limit block that is close to the lifting strap disengages from the slot. At this time, the lifting strap is passed through the limit block and the corresponding slot and placed on the hook. The other end is done in the same way, thus completing the multi-point lifting of the device to be lifted.

[0008] The present invention is further configured such that a main traction ring is provided in the middle of the top end of the support arm, and a traction rope passes through the main traction ring. The other end of the traction rope passing through the main traction ring is connected to a traction block. Auxiliary traction rings are provided at the connection points of the two ends of the support arm and the corresponding hooks. A traction rope passing through the corresponding auxiliary traction ring is connected between the traction block and the two auxiliary traction rings. The traction rope is made of high-strength steel wire rope with high tensile strength and good wear resistance.

[0009] By adopting the above technical solution, the steel cable on the crane is connected to the traction block, and the traction rope below the traction block, corresponding to the main traction ring, drives the lifting and lowering of the support arm and its adjacent structures. At the same time, the auxiliary traction ring and the corresponding traction rope are connected to the traction block for the overall balance of the lifting device and to prevent the lifting device from tipping over when only one side of the hook is used.

[0010] In summary, the present invention has the following main advantages:

[0011] This utility model uses a support arm to drive the adjacent mechanism to fall, which pushes one end of the lifting strap of the device to be lifted upward to the limit block. At this time, the telescopic rod and spring retract, and the limit block rotates along the rotating block, so that the end of the limit block that is close to the lifting strap disengages from the slot. Then, the lifting strap is passed through the limit block and the corresponding slot and placed on the hook. The other end is done in the same way, thus completing the multi-point lifting of the device to be lifted. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the overall unfolded structure of this utility model;

[0015] Figure 4 This is a cross-sectional view of the overall unfolded structure of this utility model.

[0016] In the diagram: 1. Support arm; 2. Main traction ring; 3. Auxiliary traction ring; 4. Traction block; 5. Hook; 6. Locking block; 7. Locking groove; 8. Limiting block; 9. Telescopic rod; 10. Spring; 11. Rotating block; 12. Traction rope. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] The embodiments of this utility model will be described below based on its overall structure.

[0019] A type of lifting tool used in construction, such as Figure 1-4 As shown, the support arm 1 is provided, with hooks 5 connected to both ends of the support arm 1. The movable ends of the two hooks 5 are connected to locking blocks 6, and the two locking blocks 6 are provided with locking grooves 7. A telescopic rod 9 is connected to the middle of the bottom surface of the support arm 1, and a rotating block 11 is rotatably connected to the bottom end of the telescopic rod 9. A limiting block 8 is connected to the bottom surface of the rotating block 11, and both ends of the limiting block 8 are engaged with the corresponding locking grooves 7. The hooks 5 and the support arm 1 are made of alloy steel with excellent strength and hardness. A spring 10 is connected between the support arm 1 and the rotating block 11, and the spring 10 is sleeved on the outside of the telescopic rod 9.

[0020] By adopting the above technical solution, the support arm 1 drives the adjacent mechanism to fall, and lifts one end of the lifting belt of the device to be lifted upward to the limit block 8. At this time, the telescopic rod 9 and the spring 10 retract, and the limit block 8 rotates along the rotating block 11, so that the end of the limit block 8 that is close to the lifting belt disengages from the slot 7. At this time, the lifting belt is passed through the limit block 8 and the corresponding slot 6 and placed on the hook 5. The other end is done in the same way, thus completing the multi-point lifting of the device to be lifted.

[0021] The present invention is further configured such that a main traction ring 2 is provided at the middle of the top end of the support arm 1, and a traction rope 12 passes through the main traction ring 2. The other end of the traction rope 12 passing through the main traction ring 2 is connected to a traction block 4. Auxiliary traction rings 3 are provided at the connection points of the two ends of the support arm 1 and the corresponding hooks 5. A traction rope 12 passing through the corresponding auxiliary traction ring 3 is connected between the traction block 4 and the two auxiliary traction rings 3. The traction rope 12 is made of high-strength steel wire rope with high tensile strength and good wear resistance.

[0022] By adopting the above technical solution, the steel cable on the crane is connected to the traction block 4, and the traction rope 12 corresponding to the main traction ring 2 below the traction block 4 drives the lifting and lowering of the support arm 1 and its adjacent structures. At the same time, the auxiliary traction ring 3 and the corresponding traction rope 12 are connected to the traction block 4 for the overall balance of the lifting device and to prevent the lifting device from tipping over when only one side of the hook 5 is used.

[0023] Working principle: The support arm 1 drives the adjacent mechanism to fall, pushing the lifting strap of the device to be lifted upward to one end of the limiting block 8. At this time, the telescopic rod 9 and the spring 10 retract, and the limiting block 8 rotates along the rotating block 11, so that the end of the limiting block 8 that is close to the lifting strap disengages from the slot 7. At this time, the lifting strap is passed through the limiting block 8 and the corresponding slot 6 and placed on the hook 5. The other end is done in the same way, completing the multi-point lifting of the device to be lifted. The steel cable on the crane is connected to the traction block 4, and the traction rope 12 corresponding to the main traction ring 2 below the traction block 4 drives the lifting of the support arm 1 and its adjacent structure. At the same time, the auxiliary traction ring 3 and the corresponding traction rope 12 are connected to the traction block 4 for the overall balance of the lifting device and to prevent the lifting device from tipping over when only one side of the hook 5 is used.

[0024] Based on the above structure, although embodiments of the present utility model have been shown and described in this embodiment, these specific embodiments are merely explanations of the present utility model and are not intended to limit the utility model. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present utility model, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A construction hoisting tool, comprising a support arm (1), characterized in that: Both ends of the support arm (1) are connected to hooks (5), and the movable ends of the two hooks (5) are connected to blocks (6). Both blocks (6) have slots (7) inside. The middle of the bottom surface of the support arm (1) is connected to a telescopic rod (9), and the bottom end of the telescopic rod (9) is rotatably connected to a rotating block (11). The bottom surface of the rotating block (11) is connected to a limiting block (8), and both ends of the limiting block (8) are engaged with the corresponding slots (7).

2. The construction hoisting tool according to claim 1, characterized in that: The hook (5) and support arm (1) are made of alloy steel with excellent strength and hardness.

3. The construction hoisting tool according to claim 1, characterized in that: A spring (10) is connected between the support arm (1) and the rotating block (11), and the spring (10) is sleeved on the outside of the telescopic rod (9).

4. A construction hoisting tool according to claim 1, characterized in that: A main traction ring (2) is provided at the middle of the top of the support arm (1), and a traction rope (12) passes through the main traction ring (2). The other end of the traction rope (12) passing through the main traction ring (2) is connected to a traction block (4).

5. A construction hoisting tool according to claim 4, characterized in that: Both ends of the support arm (1) are provided with auxiliary traction rings (3) at the connection points with the corresponding hooks (5), and the traction block (4) and the two auxiliary traction rings (3) are connected by traction ropes (12) passing through the corresponding auxiliary traction rings (3).

6. A construction hoisting tool according to claim 4, characterized in that: The traction rope (12) is made of high-strength steel wire rope with high tensile strength and good wear resistance.

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