Elevator safety door lock device
A safety door lock and safety door technology, applied in the field of door lock devices, can solve the problems of unsuitable construction conditions, complex structure, high cost, etc., and achieve the effect of improving the flexibility of use, simple structure of the device, and low cost
Active Publication Date: 2019-04-19
中青建安建设集团有限公司 +1
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Problems solved by technology
[0004] Aiming at the technical problems of the current door lock device, such as complex structure, high cost, and inadaptability to building construction conditions, the present invention proposes an elevator safety door lock device with simple structure, low cost, and adaptability to building construction conditions
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[0027] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.
[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear" etc. are based on the The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating...
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The invention provides an elevator safety door lock device used for opening and closing a safety door of an elevator. The elevator safety door lock device comprises a linkage unit driven by a lift car of the elevator and a locking head unit driven by the linkage unit. The locking head unit comprises a locking head body, a locking tongue which is installed inside the locking head body in an extensible mode and can fix the safety door, and a first supporting spring which can eject the locking tongue outwards. The linkage unit comprises a linkage body, a sliding bar which is installed inside the linkage body in an extensible mode and can pull the locking tongue, and a second supporting spring which can eject the sliding bar outwards. The lift car is provided with a trigger piece which can abut against the sliding bar and thus drive the sliding bar to pull the locking tongue through a steel wire rope. The safety door lock device can open the safety door when the lift car is in place; the safety door can be locked when the lift car departs; and the door lock device can automatically open and close the safety door through a mechanical device. Moreover, the elevator safety door lock device is simple in structure, stable to work, low in cost and suitable for elevator construction.
Description
technical field [0001] The invention belongs to the field of elevator equipment, in particular to a door lock device capable of locking a safety door of an elevator. Background technique [0002] The construction elevator is a simple elevator used in building construction. In order to ensure the safety of personnel, safety doors are installed on each floor of the elevator. Most of the safety doors of existing construction elevators need to be opened by manual push and pull, and the manually operated door bolts are used to lock the safety doors. This kind of safety door locking method has low reliability, workers tend to forget to lock it due to negligence, and there are potential safety hazards; workers are also prone to misoperation, so that the safety door is not completely locked, which may easily cause the safety door to open accidentally, and there are still potential safety hazards. [0003] Therefore, the construction elevator needs a door lock device that can automa...
Claims
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IPC IPC(8): B66B13/18B66B5/00
CPCB66B5/00B66B13/18
Inventor 王晓琴任常杰何延龙段良友林茂青
Owner 中青建安建设集团有限公司