A safety baffle device for a tower hoist
By employing a dual protection mechanism of light curtain detection and mechanical triggering, the problem of the tower elevator baffle not being able to automatically sense during emergency escape has been solved, enabling automatic shutdown and automatic reset, thus improving safety and ease of escape.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU STRANG ELEVATOR CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-03
AI Technical Summary
The existing tower hoist baffles need to be manually removed during emergency escape, and the system cannot accurately determine the escape status, resulting in insufficient safety and reliability.
It adopts a dual protection mechanism. It detects obstacles or people escaping through light curtain strips A and B. It stops when the beam is interrupted. Combined with the mechanically triggered movable linkage to deflect and block the light curtain, it ensures the reliability of the shutdown. It also achieves automatic reset through a torsion spring structure.
It enables real-time monitoring of light curtain detection, avoids the risk of impact, automatically senses the escape status, eliminates the need for manual removal of barriers, improves the convenience of escape and the reliability of the system, and has stronger adaptability.
Smart Images
Figure CN224449919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a safety baffle device for a tower hoist, belonging to the field of elevator equipment technology. Background Technology
[0002] To prevent collisions with objects during the ascent and descent of wind turbine tower elevators, baffles (currently made of sheet metal or wire mesh) are installed at the top and bottom. Upon impact, the baffle retracts, pressing against switch contacts and stopping the elevator. However, this design requires the baffles to be removed during emergency evacuations, and the system cannot detect whether personnel are in the process of evacuation or have already left. Utility Model Content
[0003] To address the problems existing in the prior art, this utility model provides a safety baffle device for a tower hoist, thereby solving the aforementioned technical problems.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a safety baffle device for a tower hoist, comprising a safety baffle device disposed at the bottom of the hoist body; the safety baffle device includes a left baffle assembly and a right baffle assembly; the left baffle assembly and the right baffle assembly are symmetrically arranged;
[0005] The left baffle assembly includes a box body fixing plate, movable connecting rods, a collision plate, and a light curtain strip A; the upper end of the box body fixing plate is fixedly connected to the bottom of the elevator box body; two movable connecting rods are respectively connected to one side of the box body fixing plate; the movable connecting rods are movably connected to the collision plate at the bottom; and a light curtain strip A is installed at the bottom of the collision plate.
[0006] The right baffle assembly includes a box body fixing plate, a movable connecting rod, a collision plate, and a light curtain strip B; the upper end of the box body fixing plate is fixedly connected to the bottom of the elevator box body; two movable connecting rods are respectively connected to one side of the box body fixing plate; the movable connecting rods are movably connected to the collision plate at the bottom; and a light curtain strip B is installed at the bottom of the collision plate.
[0007] Furthermore, the housing fixing plate includes a housing connecting part and a connecting rod connecting part; the housing connecting part and the connecting rod connecting part are integrally formed L-shaped parts, and two bolt holes are opened on the left and right sides of the connecting rod connecting part, which are connected by rotating bolts and movable connecting rods.
[0008] Furthermore, the impact plate includes a vertical connecting part and a light curtain strip connecting part; the vertical connecting part and the light curtain strip connecting part are integrally formed L-shaped parts; the vertical connecting part is provided with a sliding groove, and the vertical connecting part is connected to the movable connecting rod by a rotating bolt.
[0009] Furthermore, a torsion spring is provided between the housing fixing plate and the movable connecting rod.
[0010] Furthermore, the light curtain strip A and light curtain strip B are arranged in parallel, and the beam interruption signal controls the elevator to stop.
[0011] The beneficial effects of this utility model are:
[0012] Dual protection mechanisms: Light curtain detection: Continuous beams from light curtains A and B monitor obstacles or escaping personnel in real time; the system shuts down immediately upon signal interruption to avoid collision risks. Mechanical triggering: Upon impact with a parallel object, a movable linkage deflects, triggering the light curtain to block the light, ensuring reliable shutdown.
[0013] Escape convenience: No need to manually remove the barrier; the system automatically senses when people are escaping, and can accurately determine the escape status.
[0014] Automatic reset: The torsion spring structure enables the movable link to automatically return to its original position after the object is removed, reducing manual intervention.
[0015] Greater adaptability: The groove and rotating bolt design allows for flexible adjustment of the baffle at multiple angles, making it suitable for complex working conditions. Attached Figure Description
[0016] Figure 1 This is a schematic front view of the structure of this utility model;
[0017] Figure 2 This is a schematic side view of the structure of this utility model.
[0018] In the diagram: 1. Box fixing plate, 11. Box connecting part, 12. Linkage connecting part, 2. Movable link, 3. Impact plate, 31. Vertical connecting part, 311. Slide groove, 32. Light curtain strip connecting part, 4. Light curtain strip A, 5. Light curtain strip B, 6. Torsion spring. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.
[0021] like Figure 1 , Figure 2As shown, a safety baffle device for a tower hoist includes a safety baffle device disposed at the bottom of the hoist body; the safety baffle device includes a left baffle assembly and a right baffle assembly; the left baffle assembly and the right baffle assembly are arranged symmetrically.
[0022] The left baffle assembly includes a box body fixing plate 1, a movable connecting rod 2, a collision plate 3, and a light curtain strip A4; the upper end of the box body fixing plate 1 is fixedly connected to the bottom of the elevator box body; two movable connecting rods 2 are respectively connected to one side of the box body fixing plate 1; the movable connecting rods 2 are movably connected to the bottom collision plate 3; and the light curtain strip A4 is installed at the bottom of the collision plate 3.
[0023] The right baffle assembly includes a box body fixing plate 1, a movable connecting rod 2, a collision plate 3, and a light curtain strip B5; the upper end of the box body fixing plate 1 is fixedly connected to the bottom of the elevator box body; two movable connecting rods 2 are respectively connected to one side of the box body fixing plate 1; the movable connecting rods 2 are movably connected to the bottom collision plate 3; and the light curtain strip B5 is installed at the bottom of the collision plate 3.
[0024] In this embodiment, the box fixing plate 1 includes a box connecting part 11 and a connecting rod connecting part 12; the box connecting part 11 and the connecting rod connecting part 12 are integrally formed L-shaped parts, and two bolt holes are opened on the left and right sides of the connecting rod connecting part 12, which are connected by rotating bolts and movable connecting rod 2.
[0025] In this embodiment, the impact plate 3 includes a vertical connecting part 31 and a light curtain strip connecting part 32; the vertical connecting part 31 and the light curtain strip connecting part 32 are L-shaped parts integrally formed between them; the vertical connecting part 31 is provided with a sliding groove 311, and the vertical connecting part 31 is connected to the movable connecting rod 2 by a rotating bolt.
[0026] In this embodiment, a torsion spring is provided between the box fixing plate 1 and the movable connecting rod 2.
[0027] Working principle: Normal operation: When the elevator moves up and down, the light beam between light curtain A and light curtain B is continuous and unobstructed, and the system determines that there is no obstacle.
[0028] Obstacle collision:
[0029] Vertical impact: After the object contacts the impact plate 3, the movable link 2 is compressed and rotates, which is buffered by the torsion spring and blocks the beam downward, and the system stops.
[0030] Parallel impact: The impact plate 3 moves along the slide 311, directly triggering the light curtain to be interrupted.
[0031] Personnel Escape: When personnel pass through the light curtain, the light beam is interrupted, the system stops and records the escape status; once the light beam is restored, it is determined that the personnel have left.
[0032] Automatic reset: After the obstacle is removed, the torsion spring drives the movable linkage 2 back to its original position, the light curtain returns to continuous state, and the elevator can be restarted.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tower hoist safety barrier device, characterised in that, It includes a safety baffle device installed at the bottom of the elevator car body; the safety baffle device includes a left baffle assembly and a right baffle assembly; the left baffle assembly and the right baffle assembly are arranged symmetrically; The left baffle assembly includes a box body fixing plate (1), a movable connecting rod (2), a collision plate (3), and a light curtain strip A (4); the upper end of the box body fixing plate (1) is fixedly connected to the bottom of the elevator box body; two movable connecting rods (2) are respectively connected to one side of the box body fixing plate (1); the movable connecting rods (2) are movably connected to the collision plate (3) at the bottom; and the light curtain strip A (4) is installed at the bottom of the collision plate (3). The right baffle assembly includes a box body fixing plate (1), a movable connecting rod (2), a collision plate (3), and a light curtain strip B (5); the upper end of the box body fixing plate (1) is fixedly connected to the bottom of the elevator box body; two movable connecting rods (2) are respectively connected to one side of the box body fixing plate (1); the movable connecting rod (2) is movably connected to the collision plate (3) at the bottom; and a light curtain strip B (5) is installed at the bottom of the collision plate (3).
2. A tower hoist safety barrier apparatus according to claim 1, characterised in that, The box fixing plate (1) includes a box connecting part (11) and a connecting rod connecting part (12); the box connecting part (11) and the connecting rod connecting part (12) are integrally formed L-shaped parts, and two bolt holes are opened on the connecting rod connecting part (12) on the left and right, which are connected by rotating bolts and movable connecting rod (2).
3. A tower elevator safety barrier apparatus according to claim 1, wherein, The impact plate (3) includes a vertical connecting part (31) and a light curtain strip connecting part (32); the vertical connecting part (31) and the light curtain strip connecting part (32) are L-shaped parts integrally formed between them; the vertical connecting part (31) is provided with a sliding groove (311), and the vertical connecting part (31) is connected to the movable connecting rod (2) by a rotating bolt.
4. A tower elevator safety barrier apparatus according to claim 1, wherein, A torsion spring (6) is provided between the box fixing plate (1) and the movable connecting rod (2).
5. A tower climber safety barrier device according to claim 1, wherein, The light curtain strip A (4) and light curtain strip B (5) are arranged in parallel, and the beam interruption signal controls the elevator to stop.