Novel stowable spreader

Abstract

A new type of storable lifting appliance, including the lifting rope rotating device installed on the top plate, the lifting rope winding with the lifting rope rotating device, further including the storage box, the rotating wheel connected with the lifting rope rotating device, the guide chain winding with the rotating wheel and extending into the storage box, the automatic telescopic rope collector is arranged on the storage box, the pulling rope in the automatic telescopic rope collector is connected with the lifting rope rotating device or the top plate. The utility model has the following beneficial effects relative to the prior art: through the cooperation of the storage box, the magnet attraction device and the automatic telescopic rope collector and the pulling rope, the storage box can be lifted to store the guide chain to the safe height when the staff leaves the lifting appliance, so that the loss of the hoisted article or the personal and property loss caused by the operation mistake of others is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lifting mechanism technology, specifically to a novel retractable lifting device. Background Technology

[0002] When it is necessary to transport items to higher floors or lift items to higher positions, people usually use a combination of slings and pulleys to lift the items to the appropriate height.

[0003] However, in public areas, when operators leave, some people may pull the hoisting rope to lower the items and steal them, or use them improperly without authorization, causing personal injury and property damage. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, this utility model aims to provide a new type of retractable hanging device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows.

[0006] A novel retractable lifting device includes a lifting rope rotating device mounted on a top plate, a lifting rope wound around the lifting rope rotating device, a storage box, a rotating wheel connected to the lifting rope rotating device, a guide chain wound around the rotating wheel and extending into the storage box, and an automatic telescopic rope retractor provided on the storage box, wherein a pull rope extends from the automatic telescopic rope retractor and connects to the lifting rope rotating device or the top plate.

[0007] A further preferred embodiment is that the storage box is equipped with a magnetic attraction device that attracts the iron sheet on the top plate.

[0008] A further preferred embodiment is that the magnetic attraction device consists of an electromagnet disposed on the top of the storage box, an electromagnet controller disposed in the storage box, and a battery. The electromagnet attracts an iron sheet disposed on the top plate.

[0009] A further preferred embodiment is that the lifting rope rotating device or the top plate is provided with an upper roller, the storage box is provided with a lower roller, and the pull rope passes around the upper roller and the lower roller and connects to the lifting rope rotating device or the top plate.

[0010] A further preferred embodiment is that there are two lower rollers.

[0011] A further preferred embodiment is that a pulley is provided on the top plate at a position away from the rotating device of the lifting rope, and the lifting rope passes through the pulley to lift the item.

[0012] This utility model has the following advantages over the prior art: by combining the storage box, the magnetic attraction device, the automatic telescopic rope retractor and the pull rope, the storage box can be raised to store the guide chain at a safe height when the workers leave the hoisting equipment, thus avoiding the loss of hoisted items or personal and property damage caused by the operator's mistakes. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is the front view of the present utility model.

[0015] Among them, 1. Top plate; 2. Suspension rope rotating device; 3. Rotating wheel; 4. Guide chain; 5. Automatic telescopic rope retractor; 6. Storage box; 7. Magnet attraction device; 8. Upper roller; 9. Lower roller; 10. Suspension rope; 11. Pulley; 51. Pull rope; 71. Electromagnet; 72. Electromagnet controller; 73. Battery. Detailed Implementation

[0016] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0017] like Figures 1 to 2 As shown.

[0018] A novel retractable lifting device includes a lifting rope rotating device 2 mounted on a top plate 1, a lifting rope 10 wound around the lifting rope rotating device 2, a storage box 6, a rotating wheel 3 connected to the lifting rope rotating device 2, and a guide chain 4 wound around the rotating wheel 3 and extending into the storage box 6. An automatic telescopic rope retractor 5 is provided on the storage box 6, with a pull rope 51 extending from the automatic telescopic rope retractor 5 and connected to the lifting rope rotating device 2 or the top plate 1. A magnetic attraction device 7 is provided on the storage box 6, consisting of an electromagnet 71 located on the top of the storage box 6, an electromagnet controller 72 located inside the storage box 6, and a battery 73. The electromagnet 71 can attract an iron sheet located on the top plate 1.

[0019] When an item needs to be lifted to a specific height, pulling the guide chain 4 causes the rotating wheel 3 to rotate, simultaneously rotating the lifting rope rotating device 2 installed on the top plate 1, thus lifting the item with the lifting rope 10. Once the item reaches the appropriate height, pulling the pull rope 51 moves the storage box 6 upwards, at which point the guide chain 4 is stored in the storage box 6 and moves upwards. When the storage box 6 approaches the top plate 1, the electromagnet 71 engages with the iron plate on the top plate 1, fixing the storage box 6 to the top plate 1. Releasing the pull rope 51 allows the automatic telescopic rope retractor 5 to retract the pull rope 51. Storing the guide chain 4 in the raised storage box 6 prevents others from pulling the guide chain 4 to steal the suspended item after the operator leaves, or prevents improper operation from causing safety problems.

[0020] When an item needs to be lowered, the electromagnet controller 72 is controlled to power the electromagnet 71 via the battery 73. At this time, the electromagnet 71 loses its magnetism and separates from the iron plate on the top plate 1. The storage box 6 moves downward under its own weight, pulling the pull rope (51) out of the automatic telescopic rope retractor (5). The guide chain 4 is released from the storage box 6 one after another. When the storage box 6 is lowered to an appropriate height, the guide chain 4 is pulled to make the rotating wheel 3 rotate in the opposite direction. At the same time, the lifting rope rotating device 2 installed on the top plate 1 also rotates in the opposite direction, causing the lifting rope 10 to lower the item.

[0021] The electromagnet 71 can also be attracted to the iron sheet on the top plate 1 by controlling the electromagnet controller 72 to power the electromagnet 71 with the battery 73, at which point the electromagnet 71 becomes magnetic and attracts the iron sheet. Alternatively, controlling the electromagnet controller 72 to cut off the power supply from the battery 73 to the electromagnet 71 causes the electromagnet 71 to lose its magnetism and separate from the iron sheet. Compared to the demagnetization method, the power-on demagnetization method increases the time the storage box 6 is attracted to the top plate 1, preventing the storage box 6 from suddenly falling and causing unnecessary damage after the battery 73 is depleted due to the electromagnet 71 suddenly demagnetizing. It also reduces the need for inspection and replacement of the battery 73.

[0022] An upper roller 8 is provided on the lifting rope rotating device 2 or the top plate 1, and a lower roller 9 is provided in the storage box 6. The pull rope 51 passes around the upper roller 8 and the lower roller 9 and connects to the lifting rope rotating device 2 or the top plate 1. There are two lower rollers 9. The arrangement of the upper roller 8 and the lower roller 9 increases the safety and stability of raising and lowering the storage box 6.

[0023] A pulley 11 is installed on the top plate 1 at a position away from the lifting rope rotating device 2. The lifting rope 10 passes through the pulley 11 to lift items. The pulley 11 increases the space for lifting items and avoids collisions with the storage box 6 when lifting larger items.

[0024] The lifting rope rotating device 2 can be a winch, pulley, shaft, etc., and can have a backstop function.

[0025] The automatic telescopic rope retractor is existing technology. Its working principle is based on a built-in carbon steel spiral spring. When the pull rope 51 is pulled out, the carbon steel spiral spring stores power. When the pull rope 51 is released, the carbon steel spiral spring rewinds and retracts the pull rope 51.

[0026] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made to the above embodiments based on the essential technical content of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A novel retractable lifting device, comprising a lifting rope rotating device (2) mounted on a top plate (1), a lifting rope (10) wound around the lifting rope rotating device (2), and a storage box (6), a rotating wheel (3) connected to the lifting rope rotating device (2), and a guide chain (4) wound around the rotating wheel (3) and extending into the storage box (6), characterized in that: The storage box (6) is equipped with an automatic telescopic rope retractor (5), and the pull rope (51) extending from the automatic telescopic rope retractor (5) is connected to the lifting rope rotating device (2) or the top plate (1).

2. The novel retractable lifting device according to claim 1, characterized in that: The storage box (6) is equipped with a magnetic attraction device (7) that attracts the iron sheet on the top plate (1).

3. The novel retractable hanging device according to claim 2, characterized in that: The magnetic attraction device (7) consists of an electromagnet (71) installed on the top of the storage box (6), an electromagnet controller (72) installed in the storage box (6), and a battery (73).

4. A novel retractable lifting device according to any one of claims 1 to 3, characterized in that: An upper roller (8) is provided on the lifting rope rotating device (2) or the top plate (1), and a lower roller (9) is provided in the storage box (6). The pull rope (51) passes around the upper roller (8) and the lower roller (9) and connects to the lifting rope rotating device (2) or the top plate (1).

5. A novel retractable lifting device according to claim 4, characterized in that: There are two lower rollers (9).

6. A novel retractable lifting device according to any one of claims 1 to 3, characterized in that: A pulley (11) is provided on the top plate (1) at a position away from the lifting rope rotating device (2), and the lifting rope (10) passes through the pulley (11) to lift the item.

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