A building material anti-falling hoisting device
By designing hoisting frames, anti-fall nets, and adjustment systems, the problem of slippage during the hoisting of building materials was solved, thus improving safety and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JIAKAI CONSTR ENG CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
During the hoisting of traditional building materials, especially in severe convective weather, the materials are prone to slipping due to swaying, posing a safety hazard.
A building material anti-fall hoisting device was designed, which includes a hoisting frame, a fall protection net, a winch, a ratchet frame, and a hoisting sling. By using the combination of the hoisting sling and the fall protection net, the two ends of the building material are fixed. The length of the hoisting sling is adjusted by the winch and ratchet frame to accommodate the hoisting of materials of different sizes and quantities.
It effectively prevents building materials from slipping during hoisting, improving safety, and can adapt to hoisting materials of different sizes and quantities, expanding its application scope and enhancing its practicality and economy.
Smart Images
Figure CN224577845U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of construction equipment, specifically, it relates to a hoisting device for preventing building materials from falling. Background Technology
[0002] Construction is a technically complex production process that requires construction workers to use their ingenuity and creative application of theories of materials, mechanics, structure, and technology to solve the technical problems that constantly arise during construction, ensuring project quality and construction safety. Tower cranes, also known as tower hoists, are the most common type of lifting equipment on construction sites. Through lifting, slewing, and luffing, they can move heavy objects to any point within the working area. When a load is hoisted by the hook, it generates an overturning moment on the tower body. This overturning moment is counteracted by a counterweight placed at the end of the counterweight arm. The boom is subjected to bending and compression under the load, while the counterweight arm is subjected to compression. The top of the tower bears the load from the boom, counterweight arm, and guy ropes, and transfers the load to the tower body. In addition to vertical pressure, the tower body also bears unbalanced moments and overturning moments caused by horizontal wind loads. The hook can be raised and lowered using a winch. In traditional building material hoisting, tower cranes are often used to hoist simply bound materials. During use, especially in strong convective weather, the materials are prone to tipping over due to swaying, which poses a significant safety hazard.
[0003] In view of this, this utility model is hereby proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a building material anti-fall hoisting device. The basic concept of the technical solution adopted by this utility model to solve the above technical problem is as follows: A lifting device for preventing building materials from falling includes a lifting frame and a fall protection net. A storage rack is fixedly connected to the lifting frame, and a retraction shaft is embedded in the storage rack. A retraction disc is fitted into the middle of the retraction shaft, and an inner flat key is embedded between the retraction shaft and the retraction disc. The lifting strap is wound around the retraction disc. A fixing frame is fixedly connected to one side of the lifting frame from the storage rack. The other end of the lifting strap, away from the retraction disc, is connected to the fixing frame via a fixing sleeve. An anti-detachment hook is engaged on the lifting strap, and the fall protection net is fixedly connected to one end of the anti-detachment hook. A winch is fitted to one end of the retraction shaft, and a ratchet frame is fixedly connected to the side of the storage frame away from the winch. The ratchet frame has a ratchet disc embedded within it, which is sleeved on the take-up and release shaft. An external flat key is embedded between the take-up and release shaft and the ratchet disc. A pawl is engaged with one side of the ratchet disc, and a pull rod is fixedly connected to the other end of the pawl. A return spring is sleeved on the pull rod, and a limit end cap is provided at the end of the return spring away from the pawl. The limit end cap is embedded in the ratchet frame. The lifting frame provides stable support, the take-up and release shaft provides rotational support, the lifting sling uses a design from the prior art, the anti-fall net is woven from high-strength steel wire rope, the return spring provides return power, and the limit end cap provides limit protection.
[0005] As a further embodiment of this utility model: a guide frame is fixedly connected to one end of the hoisting frame away from the fixed frame, and two guide columns are provided on the guide frame. The guide frame plays a role in stabilizing and supporting, and the guide columns play a role in guiding.
[0006] As a further embodiment of this utility model: the two ends of the hoisting frame are fixedly connected to an adjusting shaft, the other end of the adjusting shaft is fitted with a rotating frame, and a connecting buckle is fixedly connected to one side of the rotating frame. The adjusting shaft serves as a rotating connection, and the rotating frame facilitates the adjustment of the hoisting angle.
[0007] As a further embodiment of this utility model: a lifting rope is wound around the connecting buckle, a locking wedge is fitted at one end of the lifting rope, and a connecting sleeve is fitted at the other end of the lifting rope. The lifting rope facilitates lifting, the locking wedge facilitates fixing the rope end, and the connecting sleeve facilitates fixing and connecting the rope end.
[0008] As a further embodiment of this utility model: a lifting plate is provided at the end of the connecting sleeve away from the lifting rope, four connecting sleeves are integrally formed on the lifting plate, and a lifting hook is fixedly connected to the lifting plate. The lifting plate serves as a fixed connection, and the lifting hook facilitates the lifting of the device.
[0009] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.
[0010] This utility model, through the design of hoisting straps and anti-fall nets, not only fixes building materials for easy hoisting, but also secures both ends of the building materials to prevent them from swaying and slipping during hoisting, thus improving the safety of the device.
[0011] This utility model, through the design of winch, storage rack, ratchet frame and lifting belt, can adjust the length of the lifting belt, which is convenient for lifting building materials of different sizes and quantities. It has a wide range of applications and good practicality and economy.
[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the internal structure of the storage rack of this utility model; Figure 5 This is a schematic diagram of the internal structure of the ratchet frame of this utility model.
[0014] In the diagram: 1. Anti-fall net; 2. Anti-detachment hook; 3. Lifting sling; 4. Guide frame; 5. Lifting frame; 6. Rotating frame; 7. Winch; 8. Connecting buckle; 9. Locking wedge sleeve; 10. Lifting rope; 11. Connecting sleeve; 12. Lifting disc; 13. Hook; 14. Storage rack; 15. Ratchet frame; 16. Pull rod; 17. Fixing frame; 18. Fixing sleeve; 19. Retracting and extending shaft; 20. Inner flat key; 21. Retracting and extending disc; 22. Adjusting shaft; 23. Guide column; 24. Ratchet disc; 25. Pawl; 26. Return spring; 27. Limiting end cap; 28. Outer flat key.
[0015] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0017] like Figures 1 to 5 As shown, a building material anti-fall hoisting device includes a hoisting frame 5 and an anti-fall net 1. A storage rack 14 is fixedly connected to the hoisting frame 5. A retraction shaft 19 is embedded in the storage rack 14. A retraction disc 21 is sleeved in the middle of the retraction shaft 19. An inner flat key 20 is embedded between the retraction shaft 19 and the retraction disc 21. A hoisting strap 3 is wound around the retraction disc 21. A fixing frame 17 is fixedly connected to one side of the hoisting frame 5 away from the storage rack 14. The other end of the hoisting strap 3 away from the retraction disc 21 is connected to the fixing frame 17 through a fixing sleeve 18. An anti-detachment hook 2 is clamped on the hoisting strap 3. An anti-fall net 1 is fixedly connected to one end of the anti-detachment hook 2. A winch 7 is sleeved on one end of the retraction shaft 19. A ratchet frame 15 is fixedly connected to the side of the storage rack 14 away from the winch 7. The ratchet frame 15 has a ratchet disc 24 embedded in it. The ratchet disc 24 is sleeved on the take-up and release shaft 19. An outer flat key 28 is embedded between the take-up and release shaft 19 and the ratchet disc 24. A pawl 25 is engaged with one side of the ratchet disc 24. A pull rod 16 is fixedly connected to the other end of the pawl 25. A return spring 26 is sleeved on the pull rod 16. A limit end cap 27 is provided at the end of the return spring 26 away from the pawl 25. The limit end cap 27 is embedded in the ratchet frame 15. The lifting frame 5 plays a role in stabilizing support. The take-up and release shaft 19 plays a role in rotational support. The lifting belt 3 adopts the existing lifting belt 3 design. The anti-fall net 1 is made of high-strength steel wire rope. The return spring 26 facilitates the provision of return power. The limit end cap 27 plays a role in limiting protection.
[0018] Among them, the end of the hoisting frame 5 away from the fixed frame 17 is fixedly connected to the guide frame 4. Two guide columns 23 are provided on the guide frame 4. The guide frame 4 plays a role in stabilizing and supporting, and the guide columns 23 play a role in guiding.
[0019] The two ends of the hoisting frame 5 are fixedly connected to the adjusting shaft 22, and the other end of the adjusting shaft 22 is fitted with a rotating frame 6. A connecting buckle 8 is fixedly connected to one side of the rotating frame 6. The adjusting shaft 22 serves as a rotating connection, and the rotating frame 6 facilitates the adjustment of the hoisting angle.
[0020] A lifting rope 10 is wound around the connecting buckle 8. A locking wedge 9 is fitted on one end of the lifting rope 10, and a connecting sleeve 11 is fitted on the other end of the lifting rope 10. The lifting rope 10 is easy to lift, the locking wedge 9 is easy to fix the rope end of the lifting rope 10, and the connecting sleeve 11 is easy to fix and connect the rope end of the lifting rope 10.
[0021] A lifting plate 12 is provided at the end of the connecting sleeve 11 away from the lifting rope 10. Four connecting sleeves 11 are integrally formed on the lifting plate 12. A hook 13 is fixedly connected to the lifting plate 12. The lifting plate 12 serves as a fixed connection, and the hook 13 facilitates the lifting of the device.
[0022] The working principle of this utility model is as follows: During use, the length of the hoisting sling 3 is adjusted according to the size and quantity of the building materials, making it slightly longer than the required length. When the hoisting sling 3 needs to be lengthened, pulling the lever 16 disengages the pawl 25 from the ratchet disc 24, allowing the hoisting sling 3 to be pulled to the appropriate length. When the hoisting sling 3 needs to be retracted, rotating the winch 7 rotates the retraction shaft 19, which in turn rotates the retraction disc 21 to retract the hoisting sling 3. Then, a suitable anti-fall net 1 is selected as needed, and the anti-detachment hook 2 is attached to the hoisting sling 3 to facilitate connection between the hoisting sling 3 and the anti-fall net 1. After installation, the hoisting sling 3 and the anti-fall net 1 are fitted over both ends of the building materials. Then, rotating the winch 7 retracts the hoisting sling 3 to retract the hoisting sling 3. After securing the materials, the tower crane hook is attached to the hook 13, allowing for hoisting by the tower crane. During hoisting, when the building materials sway, the anti-fall net 1 prevents them from slipping and falling. This utility model has a reasonable structural design and is easy to install and use. The design of the hoisting belt 3 and the anti-fall net 1 not only secures the building materials for easy hoisting but also fixes both ends of the materials to prevent them from slipping during hoisting, thus improving the safety of the device. The design of the winch 7, storage rack 14, ratchet frame 15, and hoisting belt 3 allows for adjustment of the length of the hoisting belt 3, making it suitable for hoisting building materials of different sizes and quantities. It has a wide range of applications and good practicality and economy.
[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A building material anti-fall hoisting device, comprising a hoisting frame (5), a hoisting belt (3), and an anti-fall net (1), characterized in that, A storage rack (14) is fixedly connected to the hoisting frame (5). A retraction shaft (19) is embedded in the storage rack (14). A retraction tray (21) is sleeved in the middle of the retraction shaft (19). An inner flat key (20) is embedded between the retraction shaft (19) and the retraction tray (21). The hoisting strap (3) is wound around the retraction tray (21). A fixing frame (17) is fixedly connected to one side of the hoisting frame (5) away from the storage rack (14). The other end of the hoisting strap (3) away from the retraction tray (21) is connected to the fixing frame (17) through a fixing sleeve (18). An anti-detachment hook (2) is clamped on the hoisting strap (3). One end of the anti-detachment hook (2) is fixedly connected to the anti-fall net (1). The retraction shaft... (19) is fitted with a winch (7) at one end. The storage rack (14) is fixedly connected to a ratchet frame (15) on the side away from the winch (7). A ratchet disc (24) is embedded in the ratchet frame (15). The ratchet disc (24) is fitted on the take-up and release shaft (19). An external flat key (28) is embedded between the take-up and release shaft (19) and the ratchet disc (24). A pawl (25) is engaged on one side of the ratchet disc (24). A pull rod (16) is fixedly connected to the other end of the pawl (25). A return spring (26) is fitted on the pull rod (16). A limit end cap (27) is provided at the end of the return spring (26) away from the pawl (25). The limit end cap (27) is embedded in the ratchet frame (15).
2. A building material fall-preventing hoisting apparatus according to claim 1, characterized in that, The hoisting frame (5) is fixedly connected to a guide frame (4) at one end away from the fixed frame (17), and the guide frame (4) is provided with two guide columns (23).
3. The building material fall-preventing hoisting apparatus according to claim 1, wherein The two ends of the hoisting frame (5) are fixedly connected to the adjusting shaft (22), and the other end of the adjusting shaft (22) is fitted with a rotating frame (6). A connecting buckle (8) is fixedly connected to one side of the rotating frame (6).
4. A building material fall-preventing hoisting apparatus according to claim 3, wherein A lifting rope (10) is wound around the connecting buckle (8). A locking wedge (9) is fitted at one end of the lifting rope (10), and a connecting sleeve (11) is fitted at the other end of the lifting rope (10).
5. A building material fall-preventing hoisting apparatus according to claim 4, wherein A lifting plate (12) is provided at one end of the connecting sleeve (11) away from the lifting rope (10). Four connecting sleeves (11) are integrally formed on the lifting plate (12). A hook (13) is fixedly connected to the lifting plate (12).