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Lifter safety door

A technology for safety doors and elevators, which is applied to the fastening devices of wing sashes, building fastening devices, elevators in buildings, etc. The effect of safe and reliable structure and great economic value

Inactive Publication Date: 2010-02-10
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the door of the existing elevator is a push-pull type up and down, and the manufacturing cost is relatively high, the structure is complicated, and the production cost is high.
After a period of use, it is easy to cause the failure of the mechanical and electrical interlocking of the landing door. When the car should not be opened, the car door may have been opened artificially, which may cause people to fall out of the elevator by mistake and cause a fatal accident. security risks

Method used

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Examples

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Embodiment Construction

[0026] Such as figure 1 with Figure 8 As shown, the present invention discloses a lift safety door, comprising a door frame 20, a door body 3 connected with the door frame, an upper locking device and a lower locking device for locking the door body and the door frame, and the upper locking device A connecting rod 2 is connected with the lower locking device. The door frame 20 is hinged to the door body 3 through a hinge 19 . The door body 3 is provided with a baffle plate 21 whose upper end is used to limit the sliding position of the spring pin. The upper end of the baffle plate 21 is provided with a U-shaped groove 21a that is adapted to the shape of the annular positioning boss of the spring pin 4 . A connection platform 5 with a shaft hole is provided below the door body.

[0027] Such as Figure 2a with Figure 2b As shown, the upper locking device includes a main swing lever 12 provided with a sliding slot 22 and a safety lock 1 sliding in the sliding slot. Such ...

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Abstract

The invention discloses a lifter safety door comprising a door frame, a door body, an upper locking device and a lower locking device, wherein the door body is connected with the door frame, the upperlocking device and the lower locking device are used for locking the door body and the door frame, and a connecting rod is connected between the upper locking device and the lower locking device. Thelifter safety door is provided with a safety lock and can be opened by driving the connecting rod through cancelling the locking firstly; in addition, a locking mechanism is positioned on the outer side of the door body and the lifter safety door can not be opened by mistakes, thereby eliminating potential safety hazards and achieving great economic value, simple structure as well as safety and reliability.

Description

technical field [0001] The invention relates to a safety door of an elevator, in particular to a safety door for an elevator with a space connecting rod as the main body. Background technique [0002] Elevators are important construction machinery in modern industrial and civil buildings. With the development of society, elevators are also constantly developing in the direction of safety, stability, high efficiency, and energy saving, which puts forward higher requirements for the design technology and automation design system of elevators. But the door of existing elevator is up and down push-pull type, and manufacturing cost is higher complicated structure, and production cost is high. After a period of use, it is easy to cause the failure of the mechanical and electrical interlocking of the landing door. When the car should not be opened, the car door may have been opened artificially, which may cause people to fall out of the elevator by mistake and cause a fatal accide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B13/30B66B13/04E05C19/00
Inventor 殷晨波贾文华
Owner NANJING UNIV OF TECH
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