CN204434016U

CN204434016U - Elevator door secondary safety guard

Info

Publication number: CN204434016U
Application number: CN201520046099.9U
Authority: CN
Inventors: 张宇科; 贺云朗; 侯应浩
Original assignee: Guangzhou Guangri Elevator Industry Co Ltd
Current assignee: Guangzhou Guangri Elevator Industry Co Ltd
Priority date: 2015-01-22
Filing date: 2015-01-22
Publication date: 2015-07-01
Anticipated expiration: 2025-01-22

Abstract

The utility model discloses a kind of elevator door secondary safety guard; comprise the first door strap and the second door strap; be fixed on the master lock hook on the first door strap; with master lock hook with the use of can enter line-locked door lock stay hook seat when layer door is closed to the first door strap; wherein master lock hook is provided with the secondary lock hook with its synchronous axial system, on the second door strap correspondence position be fixed with secondary lock hook with the use of can preventing layer door close time the first door strap and the secondary lock hook seat of the second door strap position relative movement.The utility model does not change the original design of existing layer door; do not affect the normal unlatching of elevator door; master lock hook and door lock stay hook seat, secondary lock hook and secondary lock hook seat genlocing or synchronously depart from, form the physical construction door lock of secondary rigidity, and steel rope can be avoided to lose efficacy the risk causing layer door surprisingly to open; realize elevator door secondary safety guard-safeguard; double insurance, prevent the accident falling hoistway from occurring, and productive costs is low; install simple and convenient, there is good value of service and social benefit.

Description

Elevator door secondary safety guard

Technical field

The utility model belongs to lift product technical field, particularly a kind of anti-falling safe protection device of elevator door.

Background technology

Elevator is in installation and servicing operations, the frequency of utilization of layer door is higher, and install and the meet accident situation of accident of servicing operations Zhong Men district maximum, why there will be these problems, it is main because human element or some non-artificial factors cause elevator linkage door interlock fault, at this moment elevator is opened at layer door or still can normally be run in incomplete closing process, if but at this moment there is people between layer door and gate, just probably there will be shearing or collision case, even can cause casualties under serious conditions.Such as, one, somewhere traction-type object is when carrying out periodical survey, the position that the active door of inspector's discovery layer door in the process of testing to elevator door and driven door link, its steel rope disconnects, but can keep all the time in its actual moving process its so-called " normally using ", that is the enabling of elevator door and door closing procedure are in normal condition all the time, and its fault is not really manifested.In view of this, the potential safety hazard in operational process of the elevator in this case is very serious, is easy to there will be because passenger takes off door and causes accident, and such as personnel are extruded by elevator, shear the injures and deaths events such as hoistway of even falling.Existing elevator floor-door safety protection device as shown in Figure 1, comprise the switch main body 10 be installed on layer door upper sill frame 9, and be respectively in the first door strap 4 and the second door strap 5 of switch main body 10 both sides, with the first door strap 4, the steel wire rope component 7 that second door strap 5 connects, be fixed on the latch hook 1 ' on the first door strap 4, with latch hook 1 ' with the use of can enter line-locked door lock stay hook seat 2 ' when layer door 8 is closed to the first door strap 4, under normal circumstances, as long as latch hook 1 ' and door lock stay hook seat 2 ' lock, first door strap 4 and the second door strap 5 all cannot move being restricted.But if there is the unforeseen circumstances that steel rope in above-mentioned case disconnects, then now the second door strap 5 will lose the pulling force of steel rope, will take advantage of a situation open once passenger takes off layer door 8, second door strap 5, cause the generation of accident.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of elevator door secondary safety guard, it can prevent steel rope from occurring corrosion, fracture were when even losing efficacy, elevator door is opened the contingency that the personnel that cause fall hoistway and is occurred.

The purpose of this utility model is achieved in that a kind of elevator door secondary safety guard; comprise the first door strap and the second door strap; be fixed on the master lock hook on the first door strap; with master lock hook with the use of can enter line-locked door lock stay hook seat when layer door is closed to the first door strap; it is characterized in that: described master lock hook is provided with the secondary lock hook with its synchronous axial system, on the second door strap correspondence position be fixed with secondary lock hook with the use of can preventing layer door close time the first door strap and the secondary lock hook seat of the second door strap position relative movement.

Described secondary lock hook and master lock hook are made into integration; Or secondary lock hook and master lock hook are separately made, connected by welding or bolting element.

When layer door is closed, described master lock hook locks by engaging with door lock stay hook seat, and secondary lock hook locks by engaging with secondary lock hook seat.

The utility model does not change the original design of existing layer door; do not affect the normal unlatching of elevator door; master lock hook and door lock stay hook seat, secondary lock hook and secondary lock hook seat genlocing or synchronously depart from, form the physical construction door lock of secondary rigidity, and steel rope can be avoided to lose efficacy the risk causing layer door surprisingly to open; realize elevator door secondary safety guard-safeguard; double insurance, prevent the accident falling hoistway from occurring, and productive costs is low; install simple and convenient, there is good value of service and social benefit.

Accompanying drawing explanation

Fig. 1 is the structural representation (layer door is in closed condition) of prior art;

Fig. 2 is structural representation of the present utility model (layer door is in closed condition).

Detailed description of the invention

The technical solution of elevator door secondary safety guard is:

As shown in Figure 2; elevator door secondary safety guard of the present utility model; be installed on the switch main body 10 on layer door upper sill frame 9, and be respectively in the first door strap 4 and the second door strap 5 of switch main body 10 both sides, the steel wire rope component 7 be connected with the first door strap 4, second door strap 5.Being fixed on, the first door strap 4 has master lock hook 1, with master lock hook 1 with the use of can enter line-locked door lock stay hook seat 2 when layer door 8 is closed to the first door strap 4.Master lock hook 1 has additional correspondence position on secondary lock hook 3, second door strap 5 with its synchronous axial system be fixed with secondary lock hook 3 with the use of the secondary lock hook seat 6 preventing the first door strap 4 and the second door strap 5 position relative movement when layer door 8 is closed.

Secondary lock hook 3 and master lock hook 1 can be made into integration; Or as the present embodiment, secondary lock hook 3 and master lock hook 1 are separately made, are connected by welding or bolting element (as bolt), connect preferably by bolt, be convenient to transform existing elevator.Secondary lock hook 3 is fixed in master lock hook 1 swing arm along master lock hook 1 direction, and master lock hook 1 and the rotation of secondary lock hook 3 around a central axis.In the present embodiment, secondary lock hook 3 is fixed on above master lock hook 1 swing arm by acclivitous connecting arm, and door lock stay hook seat 2 and secondary lock hook seat 6 be not in same level.

When elevator door 8 closes, the hook end of master lock hook 1 engages with the fixed orifice of door lock stay hook seat 2 or hold down groove and locks, and the fixed orifice of the hook end of secondary lock hook 3 and secondary lock hook seat 6 or hold down groove engage and lock, and form the physical construction door lock of secondary rigidity.When steel rope 7 occur corrosion, fracture even lost efficacy when, prevent elevator door 8 open the personnel that cause fall hoistway contingency occur.

Claims

1. an elevator door secondary safety guard; comprise the first door strap and the second door strap; be fixed on the master lock hook on the first door strap; with master lock hook with the use of can enter line-locked door lock stay hook seat when layer door is closed to the first door strap; it is characterized in that: described master lock hook is provided with the secondary lock hook with its synchronous axial system, on the second door strap correspondence position be fixed with secondary lock hook with the use of can preventing layer door close time the first door strap and the secondary lock hook seat of the second door strap position relative movement.

2. elevator door secondary safety guard according to claim 1, is characterized in that: described secondary lock hook and master lock hook are made into integration; Or secondary lock hook and master lock hook are separately made, connected by welding or bolting element.

3. elevator door secondary safety guard according to claim 1, is characterized in that: when layer door is closed, and described master lock hook locks by engaging with door lock stay hook seat, and secondary lock hook locks by engaging with secondary lock hook seat.