Foldable elevator car safety door device

CN224604457UActive Publication Date: 2026-08-07SHANTOU SHENTAI MECHANICAL & ELECTRICAL EQUIP ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANTOU SHENTAI MECHANICAL & ELECTRICAL EQUIP ENG CO LTD
Filing Date
2025-10-10
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

然而,在实际进行救援时,由于轿厢常位于高空(相对于井道的底部),若搭设跳板有着救援人员、被救乘客或设备器材等物品坠落井道的风险,安全性较差,而便携式过桥或移动式过桥等设备也不便于带到井道中,导致无法及时实施救援

Benefits of technology

[0010]与现有技术相比,本实用新型的有益效果为:通过将门体的底部铰接于轿厢门框的底部,当电梯正常运行时,三角锁锁紧门体,使得门体覆盖门框;当电梯出现故障需进行救援时,救援人员可在轿厢的外部打开三角锁,并使门体向外放倒搭在另一轿厢的顶部,使得放倒的门体形成两个轿厢之间的过桥,此时被困人员可通过放倒的门体撤出进入另一个轿厢顶或者轿厢,由此无需使用另外的便携式或移动式过桥即可完成对轿厢内人员的救援;本实用新型的安全门装置救援方便,节省了黄金救援时间,且门体利用充当过桥结构可靠,安全性高。

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Abstract

The utility model discloses a foldable elevator car safety door device, including car and safety door subassembly, and safety door subassembly establishes at one side of car, and one side of car is equipped with door frame, and safety door subassembly includes door body and triangle lock, and the bottom of door body is hinged to the bottom of door frame, and the both sides of door body are detachably connected with door frame, and triangle lock is established at the top of door body, and the top of door body is equipped with the lock catch who has set up, through hinging the bottom of door body to the bottom of car door frame, when the elevator breaks down and needs to carry out rescue, the rescuer can open triangle lock outside the car, and make the door body to be laid down outward and be supported on the top of another car, so that the laid down door body forms the bridge between two cars, at this moment, the trapped personnel can withdraw into another car top or car through the laid down door body, thereby, the rescue of the personnel in the car can be completed without using additional portable or movable bridge, and the rescue is convenient, and the rescue time is saved.
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Description

Technical Field

[0001] This utility model relates to the field of elevator car safety doors, and in particular to a foldable elevator car safety door device. Background Technology

[0002] Currently, for two adjacent elevators located within a shaft, a safety door is typically installed between the two elevator cars at their respective positions. This allows for the rescue of trapped passengers in the event of a malfunction or damage to one elevator. The trapped passengers can be transferred to an adjacent elevator car by opening the safety door and deploying a ramp or a portable or mobile ramp with handrails. However, in actual rescue operations, because the elevator cars are often located at a height (relative to the bottom of the shaft), deploying a ramp carries the risk of rescuers, passengers, or equipment falling into the shaft, resulting in poor safety. Furthermore, portable or mobile ramps are inconvenient to bring into the shaft, hindering timely rescue efforts. Utility Model Content

[0003] The purpose of this invention is to provide a foldable elevator car safety door device to solve one or more technical problems existing in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A foldable elevator car safety door device includes a car and a safety door assembly. The safety door assembly is located on one side of the car, and a door frame is provided on one side of the car. The safety door assembly includes a door body and a triangular lock. The bottom of the door body is hinged to the bottom of the door frame, and the two sides of the door body are detachably connected to the door frame. The triangular lock is located on the top of the door body, and a latch is provided on the top of the door body. The triangular lock is used to insert or disengage the latch. The door body is foldable.

[0006] Preferably, the door body includes multiple movable door panels and multiple hinges. The multiple movable door panels are spliced ​​together to cover the door frame. Adjacent movable door panels are hinged together by hinges. The movable door panel at the bottom is hinged to the car by the hinges.

[0007] Preferably, it also includes a limit switch, which is located on one side of the triangular lock, and the detection end of the limit switch abuts against the upper edge of the door.

[0008] Preferably, it also includes a plurality of butterfly bolts, and the two sides of the movable door panel are detachably connected to the inner side of the door frame by the butterfly bolts.

[0009] Preferably, one side of the movable door panel is provided with at least one reinforcing rib.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By hinged the bottom of the door body to the bottom of the car door frame, when the elevator is running normally, the triangular lock locks the door body, so that the door body covers the door frame; when the elevator malfunctions and rescue is required, rescuers can open the triangular lock from the outside of the car and let the door body fall outwards and rest on the top of another car, so that the fallen door body forms a bridge between the two cars. At this time, the trapped people can evacuate through the fallen door body to the top of the other car or the car itself. Thus, the rescue of people in the car can be completed without the need to use other portable or mobile bridges. The safety door device of this utility model is convenient for rescue, saves golden rescue time, and the door body is reliable and safe as a bridge structure. Attached Figure Description

[0011] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0012] Figure 1 This is a schematic diagram of the overall structure of a security door assembly according to one embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the rescue use of one embodiment of this utility model;

[0014] Figure 3 This is a schematic diagram of the door folding according to one embodiment of the present invention.

[0015] The components include: car 1, safety door assembly 2, door frame 11, door body 21, triangular lock 22, movable door panel 211, hinge 212, limit switch 23, butterfly bolt 24, and reinforcing rib 213. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] This embodiment provides a foldable elevator car safety door device, see attached drawing. Figure 1 The system includes a car 1 and a safety door assembly 2. The safety door assembly 2 is located on one side of the car 1. A door frame 11 is provided on one side of the car 1. The safety door assembly 2 includes a door body 21 and a triangular lock 22. The bottom of the door body 21 is hinged to the bottom of the door frame 11. The two sides of the door body 21 are detachably connected to the door frame 11. The triangular lock 22 is located on the top of the door body 21. A latch is provided on the top of the door body 21. The triangular lock 22 is used to insert or release the latch. The door body 21 is foldable.

[0018] In this embodiment, the bottom of the door body 21 is hinged to the bottom of the door frame 11 of the car 1. When the elevator is running normally, the triangular lock 22 locks the door body 21, so that the door body 21 covers the door frame 11. When the elevator malfunctions and rescue is required, rescuers can open the triangular lock 22 from the outside of the car 1 and let the door body 21 fall outwards and overhang on the top of another car 1. (Refer to the attached document.) Figure 2 and 3 The collapsed door 21 forms a bridge between the two cars 1, allowing trapped personnel to evacuate through the collapsed door 21 to the top of the other car 1 or to the top of the other car 1. This eliminates the need for additional portable or mobile bridges to rescue personnel inside the car 1. Furthermore, the door 21 is foldable, and its length can be adjusted according to the distance between the two cars 1, making it convenient to use. Therefore, the safety door device in this embodiment facilitates rescue, saves crucial rescue time, and the door 21, acting as a bridge structure, is reliable and highly safe.

[0019] Preferably, the door body 21 includes multiple movable door panels 211 and multiple hinges 212. The multiple movable door panels 211 are spliced ​​vertically to cover the door frame 11. Adjacent movable door panels 211 are hinged together by hinges 212. The movable door panel 211 at the bottom is hinged to the car 1 by hinges 212. By hinged to adjacent movable door panels 211 by hinges 212, the door body 21 is foldable, allowing rescuers to adjust the folding position of the door body 21 according to the length between the two cars 1. When the movable door panels 211 are folded together vertically, the rigidity of the door body 21 is increased, improving the safety of the door body 21 during rescue operations.

[0020] Preferably, a limit switch 23 is also included. The limit switch 23 is located on one side of the triangular lock 22, and the detection end of the limit switch 23 abuts against the upper edge of the door body 21. By setting the limit switch 23, when the door body 21 is opened and the limit switch 23 is triggered, neither of the two adjacent elevators in the shaft can continue to move up or down, ensuring the safety of the rescue. The triangular lock 22 is a special rescue key, which cannot be opened by non-professionals. Only rescue personnel can operate it, which improves safety.

[0021] Preferably, the device also includes multiple wing bolts 24, and the two sides of the movable door panel 211 are detachably connected to the inner side of the door frame 11 via the wing bolts 24. The detachable connection between the movable door panel 211 and the door frame 11 is achieved using wing bolts 24. The wing bolts 24 are easy to remove and can be disassembled without the need for specialized tools, saving rescue time.

[0022] Preferably, at least one reinforcing rib 213 is provided on one side of the movable door panel 211. By providing multiple reinforcing ribs 213 on one side of the movable door panel 211, the rigidity of the movable door panel 211 is improved, preventing deformation caused by being stepped on by rescued personnel and improving the safety of rescue operations.

[0023] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A foldable elevator car safety door device, characterized in that, The system includes a car and a safety door assembly. The safety door assembly is located on one side of the car, and a door frame is provided on one side of the car. The safety door assembly includes a door body and a triangular lock. The bottom of the door body is hinged to the bottom of the door frame, and the two sides of the door body are detachably connected to the door frame. The triangular lock is located on the top of the door body, and a latch is provided on the top of the door body. The triangular lock is used to insert or disengage the bolt from the latch. The door body is foldable.

2. The foldable elevator car safety door device according to claim 1, characterized in that, The door body includes multiple movable door panels and multiple hinges. The multiple movable door panels are spliced ​​together to cover the door frame. Adjacent movable door panels are hinged together by hinges. The movable door panel at the bottom is hinged to the car by the hinges.

3. The foldable elevator car safety door device according to claim 1, characterized in that, It also includes a limit switch, which is located on one side of the triangular lock, and the detection end of the limit switch abuts against the upper edge of the door.

4. A foldable elevator car safety door device according to claim 2, characterized in that, It also includes multiple butterfly bolts, and the two sides of the movable door panel are detachably connected to the inner side of the door frame through the butterfly bolts.

5. A foldable elevator car safety door device according to claim 2, characterized in that, The movable door panel has at least one reinforcing rib on one side.