A man-riding device for a man-trip cage
By designing a motor-controlled ladder and handrail structure on the cage, the problem of inconvenience in using the cage curtain was solved, making the process of cage entry and exit convenient and safe, reducing the difficulty of operation and improving stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SUITONG MASCH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-23
AI Technical Summary
The existing cage curtain is inconvenient to use and poses safety hazards, especially when workers are entering and exiting the cage, it is strenuous and easy for them to get stuck.
A ladder and handrail access device was designed, comprising a cage body, first and second frames, handrails, worm gears and wire ropes. The extension and retraction of the ladder and handrails are controlled by an electromagnetic lock and a motor, enabling the ladder to be extended and stored. Combined with the folding structure of the handrails, the operation is simplified and the safety is improved.
It increases the convenience and safety of entering and exiting the cage, reduces the burden on workers, lowers the difficulty of operation, and improves the stability and safety of the equipment.
Smart Images
Figure CN224394386U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cage technology, and in particular relates to a loading and unloading device for a manned cage. Background Technology
[0002] A mine cage is a type of hoisting container. A hook is located at the center of the cage's top, connected to a hoisting wire rope. The cage rises and falls within the shaft along with the hoisting wire rope, facilitating worker access. The front and back of the cage serve as the worker's entrance and exit. To ensure workers don't fall out during cage movement, safety devices are installed at the entrances and exits. A cage curtain is a common safety measure. When entering or exiting the cage, the worker manually lifts the curtain from bottom to top. Once the curtain is lifted above the worker's height, the worker enters the cage and releases it. The curtain's crossbars and connecting chains then fall under their own weight, blocking the entrance and exit of the cage and preventing workers from falling into the shaft. However, this method of lifting the curtain is laborious, and the weight-based descent can easily cause jamming, posing a safety hazard. Utility Model Content
[0003] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a loading and unloading device for a manned cage, which effectively solves the problem of inconvenience in using cage curtains.
[0004] The technical solution to the technical problem is as follows: The cage includes a cage body, a cage door hinged to the left side of the cage body, the cage door including a first frame, the first frame hinged to the cage body, a first ladder slidably connected inside the first frame, a second frame fixed to the upper end of the first frame, a second ladder fixed inside the second frame, handrails hinged to the front and rear ends of the second frame, the handrails including a handrail, multiple vertical rods hinged to the lower end of the handrail, a rotating shaft fixed to the lower end of the vertical rod in a front-rear direction, the rotating shaft rotatably connected to the second frame, a worm gear coaxially fixed to the rotating shaft near the cage body, a worm gear rotatably connected to the second frame and meshing with the worm gear, a pulley rotatably connected to the side of the second frame away from the cage body, a drum installed on the cage body, a wire rope connected to the drum, and the wire rope wound around the pulley.
[0005] Preferably, the first frame is provided with a sliding groove, and the first ladder slides within the sliding groove.
[0006] Preferably, electromagnetic locks are installed on the front and rear sides of the first frame, and the electromagnetic locks correspond to the first ladder. The electromagnetic locks lock or release the first ladder.
[0007] Preferably, a motor is mounted on the second frame, and the motor is coaxially and fixedly connected to the worm gear.
[0008] This utility model has the following advantages over traditional equipment: the first ladder moves telescopically within the first frame, increasing the space for workers to enter and exit. Combined with the handrail structure, it is safe and reliable to go up and down. The handrail adopts a folding structure, which occupies little space and is easy to store. The steel wire rope and pulley structure cleverly controls the opening and closing of the cage door. It is simple to operate, highly stable, reduces the burden on workers, and is convenient and practical for entry and exit. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of the cage door in this utility model;
[0010] Figure 2 This is a schematic diagram of the three-dimensional structure of the first frame and the first ladder in this utility model;
[0011] Figure 3 This is a schematic diagram of the cage door in the open state in this utility model;
[0012] Figure 4 This is a schematic diagram of the cage door in the closed state in this utility model.
[0013] Reference numerals in the attached drawings: 1. Cage body; 2. First frame; 3. First ladder; 4. Second frame; 5. Second ladder; 6. Handrail; 7. Vertical bar; 8. Rotating shaft; 9. Worm gear; 10. Worm; 11. Pulley; 12. Wire rope; 13. Sliding groove; 14. Electromagnetic lock; 15. Motor. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0015] Depend on Figures 1 to 4 A loading and unloading device for a manned cage is provided, comprising a cage body 1, a cage door hinged to the left side of the cage body 1, the cage door including a first frame 2, the first frame 2 being hinged to the cage body 1, a first ladder 3 slidably connected inside the first frame 2, a second frame 4 fixed to the upper end of the first frame 2, a second ladder 5 fixed inside the second frame 4, handrails hinged to the front and rear ends of the second frame 4, the handrails including a handrail 6, a plurality of vertical rods 7 hinged to the lower end of the handrail 6, a rotating shaft 8 arranged in the front-rear direction fixed to the lower end of the vertical rods 7, the rotating shaft 8 being rotatably connected to the second frame 4, a worm gear 9 coaxially fixed to the rotating shaft 8 near the cage body 1, a worm 10 rotatably connected to the second frame 4 and meshing with the worm gear 9, a pulley 11 rotatably connected to the side of the second frame 4 away from the cage body 1, a drum installed on the cage body 1, a steel wire rope 12 connected to the drum, and the steel wire rope 12 being wound around the pulley 11.
[0016] The first frame 2 is provided with a sliding groove 13, and the first ladder 3 slides within the sliding groove 13.
[0017] Electromagnetic locks 14 are installed on the front and rear sides of the first frame 2. The electromagnetic locks 14 correspond to the first ladder 3 and lock or release the first ladder 3.
[0018] A motor 15 is mounted on the second frame 4, and the motor 15 is coaxially and fixedly connected to the worm gear 10.
[0019] In use, during coal mine operations, the cage is a mine hoisting container used to transport personnel. When the drum is activated, the wire rope 12 is released, and the cage door tilts to the left under gravity. As the cage door continues to rotate, the first ladder 3 slides outward from the first frame 2. When the tail of the first ladder 3 slides to the end of the first frame 2, the electromagnetic lock 14 automatically locks the tail of the first ladder 3 inside the first frame 2. (The electromagnetic lock 14 can be an electromagnet structure; an electromagnet is installed inside the first frame 2, and the tail of the first ladder 3 is fitted with an electromagnet that engages with the first frame 2.) The corresponding electromagnet, similar to existing electromagnetic access control systems (a conventional technical means often seen in real life), extends the front of the first ladder 3 beyond the first frame 2, thus extending the overall length of the ladder. When the front of the first ladder 3 touches the ground, the drum is closed, and the motor 15 is started. The motor 15 drives the worm gear 10 to rotate, which in turn drives the worm wheel 9 to rotate. The worm wheel 9 drives the rotating shaft 8 to rotate, which in turn causes the vertical rod 7 to swing the handrail 6 as a whole. When the vertical rod 7 is perpendicular to the second frame 4, the motor 15 is closed. The lead angle of the worm gear 10 is less than the equivalent friction angle between the meshing gear teeth. The worm wheel and worm gear have self-locking properties, thus locking the position of the handrail. Workers can then safely and reliably ascend and descend the cage body 1 along the first ladder 3 and the second ladder 5.
[0020] When the cage door needs to be closed, the reverse motor 15 is turned on, and the motor 15 drives the worm gear 10 to reset. The worm gear 10 drives the worm wheel 9 to reset. When the vertical rod 7 is attached to the second frame 4, the motor 15 stops rotating, the drum is started, and the wire rope 12 drives the pulley 11 to reset. The cage door moves closer to the cage body 1. When the cage door is completely close to the cage body 1, the drum is closed, the electromagnetic lock 14 is activated, the electromagnetic lock 14 releases the tail of the first ladder 3, and the first ladder 3 moves down into the first frame 2 under the action of gravity. It can extend and retract freely and occupies little space. Then the cage body 1 can be lifted.
[0021] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.
Claims
1. A loading and unloading device for a manned cage, characterized in that, The cage includes a cage body (1), a cage door hinged to the left side of the cage body (1), the cage door including a first frame (2), the first frame (2) being hinged to the cage body (1), a first ladder (3) being slidably connected inside the first frame (2), a second frame (4) being fixed to the upper end of the first frame (2), a second ladder (5) being fixed inside the second frame (4), handrails being hinged to the front and rear ends of the second frame (4), the handrails including a handrail (6), a plurality of vertical rods (7) being hinged to the lower end of the handrail (6), and the lower end of the vertical rods (7) being fixed. A rotating shaft (8) is fixed in the front-back direction. The rotating shaft (8) is rotatably connected to the second frame (4). A worm gear (9) is fixed coaxially on the rotating shaft (8) near the cage body (1). A worm (10) that meshes with the worm gear (9) is rotatably connected on the second frame (4). A pulley (11) is rotatably connected on the side of the second frame (4) away from the cage body (1). A drum is installed on the cage body (1). A wire rope (12) is connected to the drum. The wire rope (12) is wound on the pulley (11).
2. The loading and unloading device for a passenger cage according to claim 1, characterized in that, The first frame (2) is provided with a sliding groove (13), and the first ladder (3) slides in the sliding groove (13).
3. The loading and unloading device for a passenger cage according to claim 1, characterized in that, Electromagnetic locks (14) are installed on the front and rear sides of the first frame (2). The electromagnetic locks (14) correspond to the first ladder (3). The electromagnetic locks (14) lock or release the first ladder (3).
4. The loading and unloading device for a passenger cage according to claim 1, characterized in that, A motor (15) is mounted on the second frame (4), and the motor (15) is coaxially and fixedly connected to the worm (10).