Safety protection net for elevator

Abstract

The utility model relates to a safety protection net for a hoister, which comprises protection net components circumferentially arranged on the outer edge of a working platform of the hoister, each protection net component comprises a frame, a net piece and a retracting and releasing mechanism, one side edge of the frame is hinged with the outer edge of the working platform of the hoister, the net piece is arranged in the frame, and the net piece is arranged in the frame. The retracting and releasing mechanism is arranged on the elevator working platform and connected with the other side edge of the frame, and the frame is driven to turn over through the retracting and releasing mechanism so that the meshes can be located on the outer side of the elevator working platform or located below the elevator working platform. According to the utility model, the protective net can be conveniently overturned and retracted through the connection of the retracting mechanism and the frame. When necessary, the protective cover can be quickly unfolded to provide protection; and when not needed, the elevator can be easily folded, normal operation of the elevator is not affected, and use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of hoist technology, specifically to a safety protection net for hoists. Background Technology

[0002] A hoist is a mechanical device used for vertical or inclined material conveying. It uses a lifting mechanism to transport materials from a lower to a higher position or vice versa. Hoists are widely used in production processes across various industries and are an indispensable piece of equipment in modern industrial production.

[0003] Currently, manned hoists are generally equipped with guardrails on the working surface to ensure the safety of construction workers. However, in actual operation, the guardrails cannot provide protection for the outside of the working surface. Materials on the upper part of the working surface can easily fall to the lower part of the hoist and cause damage. At the same time, they cannot provide protection if construction workers accidentally fall over the guardrails. Utility Model Content

[0004] The purpose of this invention is to provide a safety net for hoists, thereby solving the aforementioned problems existing in current hoists.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safety net for a hoist includes a safety net assembly circumferentially disposed on the outer edge of the hoist's working platform. Each safety net assembly includes a frame, a mesh panel, and a take-up and release mechanism. One side of the frame is hinged to the outer edge of the hoist's working platform. The mesh panel is disposed in the frame. The take-up and release mechanism is disposed on the hoist's working platform and connected to the other side of the frame. The take-up and release mechanism drives the frame to flip so that the mesh panel is located outside or below the hoist's working platform.

[0007] Furthermore, the winding and unwinding mechanism includes a housing, a worm gear, a worm wheel, a drum, and a drive device. A safety railing is provided on the working platform of the hoist, and the housing is mounted on the safety railing. The worm gear and the worm wheel are both disposed within the housing. The drive device is connected to the input shaft of the worm gear, driving the worm gear to rotate. The drum is connected to the worm wheel, and the rotation of the worm wheel drives the drum to rotate. A traction rope is wound around the drum, and the traction rope is connected to the frame. The rotation of the drum drives the traction rope to wind up and unwind, thereby driving the frame to flip.

[0008] Furthermore, a pull ring is provided on the side of the frame away from the working platform of the hoist, and the end of the traction rope is connected to the pull ring.

[0009] Furthermore, a hinge block is provided on the side of the frame near the working platform of the hoist, and a hinge seat is provided on the side of the working platform of the hoist. The frame and the working platform of the hoist are hinged through the cooperation of the hinge block and the hinge seat.

[0010] Furthermore, the drive device includes a handwheel connected to the input shaft of the worm gear.

[0011] Furthermore, a projection device is provided on the side of the frame away from the working platform of the hoist, and a safety warning sign is projected onto the bottom surface below the frame through the projection device.

[0012] The beneficial effects of this utility model are:

[0013] This utility model discloses a safety net for a hoist. Through a protective net assembly circumferentially positioned along the outer edge of the hoist's working platform, it effectively prevents materials on the upper part of the working surface from falling to the lower part of the hoist and causing damage. It also provides external protection for construction personnel. Due to the net assembly, even if a worker accidentally climbs over the guardrail, they can be caught by the net, greatly improving worker safety. The connection between the net assembly and the frame allows for easy unfolding and retraction. When needed, it can be quickly deployed to provide protection; when not needed, it can be easily retracted without affecting the normal operation of the hoist, improving ease of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the application scenario of the safety net for a hoist.

[0015] Figure 2 yes Figure 1 Schematic diagram of the structure at point A;

[0016] Figure 3 This is a schematic diagram illustrating the application scenario of the safety net for a hoist.

[0017] Figure 4 This is a structural schematic diagram of the safety net for a hoist according to this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the take-up and take-down mechanism in the safety net of the hoist of the present invention;

[0019] Figure 6 This is a schematic diagram of the internal structure of the housing of the take-up and take-down mechanism in the safety net of the hoist.

[0020] The names corresponding to each mark in the diagram:

[0021] 1. Hoist working platform; 2. Frame; 3. Netting; 4. Retracting mechanism; 5. Hinge block; 6. Hinge seat; 7. Housing; 8. Worm gear; 9. Worm wheel; 10. Drum; 11. Safety railing; 12. Handwheel; 13. Traction rope; 14. Pull ring; 15. Projection device. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figures 1 to 6 As shown, a safety net for a hoist includes a safety net assembly circumferentially disposed at the outer edge of the working platform 1 of the hoist.

[0024] Figures 2-4 As shown, each protective net assembly includes a frame 2, a mesh panel 3, and a take-up and take-down mechanism 4. One side of the frame 2 is hinged to the outer edge of the hoist working platform 1. Specifically, a hinge block 5 is provided on the side of the frame 2 near the hoist working platform 1, and a hinge seat 6 is provided on the side of the hoist working platform 1. The hinge between the frame 2 and the hoist working platform 1 is achieved through the cooperation of the hinge block 5 and the hinge seat 6. The mesh panel 3 is set in the frame 2 to provide protection.

[0025] The take-up and release mechanism 4 is set on the working platform 1 of the hoist and connected to the other side of the frame 2. The frame 2 is driven to flip by the take-up and release mechanism 4 so that the net 3 is located outside the working platform 1 of the hoist or below the working platform 1 of the hoist.

[0026] Figure 5 and Figure 6 As shown, the take-up and unwinding mechanism 4 includes a housing 7, a worm gear 8, a worm wheel 9, a drum 10, and a drive unit. A safety guardrail 11 is provided on the hoist's working platform 1. The housing 7 is mounted on the safety guardrail 11. Both the worm gear 8 and the worm wheel 9 are housed within the housing 7. The drive unit is connected to the input shaft of the worm gear 8.

[0027] Figures 4-6 As shown, the drive device includes a handwheel 12, which is connected to the input shaft of the worm gear 8, driving the worm gear 8 to rotate. A drum 10 is connected to a worm wheel 9, and the rotation of the worm wheel 9 drives the drum 10 to rotate. A traction rope 13 is wound around the drum 10, and a pull ring 14 is provided on the side of the frame 2 away from the hoist's working platform 1. The end of the traction rope 13 is connected to the pull ring 14. The rotation of the drum 10 drives the traction rope 13 to wind up and unwind, thereby driving the frame 2 to rotate.

[0028] Furthermore, a projection device 15 is provided on the side of the frame 2 away from the working platform 1 of the hoist. The projection device 15 projects safety warning signs onto the bottom surface below the frame 2 to remind construction personnel to pay attention to safety.

[0029] The working principle of this utility model is as follows:

[0030] When the mesh panel 3 needs to be deployed for protection, the handwheel 12 is turned to drive the worm gear 8 to rotate. The worm gear 8 drives the worm wheel 9 to rotate, which in turn drives the drum 10 to rotate. The drum 10 winds up the traction rope 13, which pulls the frame 2 to flip, causing the mesh panel 3 to unfold and be positioned outside the hoist's working platform 1, providing protection. When the mesh panel 3 needs to be retracted, the handwheel 12 is turned in the opposite direction, causing the drum 10 to release the traction rope 13. The frame 2 flips under gravity, retracting the mesh panel 3 to below the hoist's working platform 1.

[0031] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.

Claims

1. A safety net for a hoist, characterized in that: The system includes a protective net assembly circumferentially disposed on the outer edge of the hoist working platform. Each protective net assembly includes a frame, a net panel, and a take-up and release mechanism. One side of the frame is hinged to the outer edge of the hoist working platform. The net panel is disposed in the frame. The take-up and release mechanism is disposed on the hoist working platform and connected to the other side of the frame. The take-up and release mechanism drives the frame to flip so that the net panel is located outside or below the hoist working platform.

2. The safety net for a hoist according to claim 1, characterized in that: The winding and unwinding mechanism includes a housing, a worm gear, a worm wheel, a drum, and a drive device. A safety railing is provided on the working platform of the hoist, and the housing is mounted on the safety railing. The worm gear and the worm wheel are both housed in the housing. The drive device is connected to the input shaft of the worm gear and drives the worm gear to rotate. The drum is connected to the worm wheel, and the rotation of the worm wheel drives the drum to rotate. A traction rope is wound around the drum and is connected to the frame. The rotation of the drum drives the traction rope to wind up and unwind, thereby driving the frame to flip.

3. The safety net for a hoist according to claim 2, characterized in that: A pull ring is provided on the side of the frame away from the working platform of the hoist, and the end of the traction rope is connected to the pull ring.

4. The safety net for a hoist according to claim 1, characterized in that: A hinge block is provided on the side of the frame near the working platform of the hoist, and a hinge seat is provided on the side of the working platform of the hoist. The frame and the working platform of the hoist are hinged by the cooperation of the hinge block and the hinge seat.

5. The safety net for a hoist according to claim 2, characterized in that: The drive device includes a handwheel, which is connected to the input shaft of the worm gear.

6. The safety net for a hoist according to claim 1, characterized in that: A projection device is installed on the side of the frame away from the working platform of the hoist, and a safety warning sign is projected onto the bottom surface below the frame through the projection device.

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