KR20110005391A - Elevator platform door with escape lock - Google Patents

Abstract

PURPOSE: An elevator entrance door with a protecting device for preventing the breakaway of the door is provided to prevent the displacement of the elevator entrance door due to an external impact by simultaneously supporting the center part and lower part of the door. CONSTITUTION: An elevator entrance door(1a,1b) is opened and closed from side to side along a guide rail(3) installed on the floor of a platform. The platform is connected with a lifting passage of an elevator cage. A plate-shaped displacement protecting unit(10a,10b) is fixed to the lower part of the elevator door. The projected lower end part of the displacement protecting unit is inserted into a rail groove(4) of the guide rail.

Description

Elevator entrance door with escape lock {elevator entrance 's door with protecting device for breakaway}

The present invention relates to an elevator landing door provided with an escape prevention device, and more particularly, when the elevator landing door is engaged and closed, the landing door is lifted by the elevator cage even when a strong impact is applied by locking and locking the lower and side portions of the door at the same time. It is designed to prevent damage to the landing door while being pushed toward the aisle.

The elevator platform is equipped with a landing door that opens and closes the gate of the wall separately from the opening door of the elevator cage, and opens and closes with the elevator cage opening door when boarding the elevator. A guide shoe moving along the guide rail groove of the guide seal is formed to prevent the landing door from being released from the closed state.

However, when the guide shoe is separated from the groove of the guide rail by an external impact, the landing door is pushed toward the lifting passage of the elevator cage, thereby leaving the guide shoe.

Accordingly, in recent years, an elevator landing door (registered patent No. 873165) provided with a departure prevention device has been proposed to prevent the guide shoe from being separated from the groove of the guide rail by a light external impact.

Conventionally, an elevator landing door provided with a departure preventing device is formed in the middle of the lower part of the landing doors (1a), (1b), as shown in Figure 1, respectively forming the engaging members (2a), (2b) and landing door (1a) The lock grooves 5a and 5b are formed in the rail grooves 4 of the guide rails 3 forming the guide seals at the lower portions of the 1 and 1b, respectively, to form the landing doors 1a and 1b. Is engaged, the locking members 2a and 2b are inserted into the locking members 5a and 5b respectively installed in the rail groove 4 formed toward the hoistway of the elevator cage, thereby locking the members 2a and 2b. The circular protrusion 6 provided at the end of the rod is inserted into the locking members 5a and 5b along the opening 7 formed in the locking members 5a and 5b to be locked to prevent the landing of the landing door. Was.

However, the separation prevention device of the elevator landing door should have a locking member in addition to the locking member installed in the landing door, which leads to an increase in cost, and the opening of the installed locking member is exposed to the upper surface of the guide seal to face the foreign body. If there is concern about the inflow of foreign matters is not easy to remove, there was a problem that can cause the closing of the landing door.

In particular, the departure prevention device of the conventional elevator landing door is formed in the lower part of the landing door like a guide shoe and screwed to the bottom of the rail groove, so that when a strong external impact is applied, the elevator landing door is pushed toward the landing passage of the elevator cage or the elevator landing door is There is a problem that can be damaged such as bending.

The present invention is to solve the problems as described above, the first object of the present invention is to provide an elevator landing door having a departure prevention device having a relatively simple structure and is not easily separated by an external impact. ,

It is a second object of the present invention to provide an elevator landing door having a release preventing device which is not easily damaged by an impact by an external impact and is not damaged by an impact.

The first object of the present invention is the elevator platform door by inserting the lower end of the lower escape lock of the plate fixed to protrude to the lower and the front end of the elevator platform door into the rail groove of the guide rail and the tip is immersed in the bottom surface of the landing door when closed. To prevent deviations from

The second object of the present invention is to form a side escape prevention unit so that the center of the elevator landing door is coupled to the elevator cage lifting passage inner surface of the landing wall to prevent the departure and damage of the elevator landing door.

The present invention has the effect that it is possible to prevent the departure of the landing door even in the severe external impact by supporting the center and the bottom of the elevator landing door at the same time.

In addition, the lower departure stop of the landing door is extremely simple in structure, easy to install and maintain, and has the effect of eliminating the risk of malfunction due to the inflow of foreign matter.

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing the drawings, the same components have the same reference numerals as much as possible even though they are shown in different drawings.

Figure 2 is a perspective view showing the overall configuration according to the present invention, Figure 3 is a perspective view showing the configuration of the lower departure prevention device according to the present invention, Figure 4 is a plan sectional view showing the installation state of the side departure prevention tool according to the present invention.

According to the drawings, the elevator landing door is provided with a departure prevention device according to the present invention, a pair of elevators that are opened and closed along the length direction on the guide rails 3 of the guide chamber provided on the floor of the landing surface in contact with the landing passage of the elevator cage. In the landing door, a plate-shaped lower release prevention opening (10a) (10b) is fixed to the lower portion of the landing door (1a) (1b), respectively, along the rail groove (4) of the guide rail (3) It is moved with 10a) 10b.

The lower end and the tip of the lower departure prevention opening (10a) (10b) are firmly installed at the lower part of the landing door (1a) (1b) so as to protrude a predetermined distance from the lower end and the tip of the landing door (1a) (1b), respectively. The lower end is inserted into the rail groove 4 of the guide rail 3 and the tip is inserted into the bottom surface of the closed landing doors 1a and 1b.

At this time, the protruding end of the protruding lower release prevention means (10a) (10b) and the tip of the exit prevention means (10a) (10b) that are stably inserted and facing the bottom of the opposite landing door (1a) (1b) It is formed to be parallel to the plane extension line of the body so that it can overlap without interference.

At this time, the front end of the departure prevention tool (10a, 10b) may be formed to be formed integrally with the departure prevention tool (10a, 10b) and then bent or separately provided and fixed.

On the other hand, it is possible to prevent the installation of a separate guide shoe by inserting and fixing a plurality of guide shoes (11) at the lower end of the separation prevention (10a, 10b).

According to another embodiment of the present invention, the elevator cage lifting passage of the landing wall corresponding to the hooks 21a and 21b and the hooks 21a and 21b installed on the rear end side of the landing doors 1a and 1b. The side separation prevention holes 20a and 20b formed of locking jaws 22a and 22b fixed to the inner wall are further formed.

The hooks 21a and 21b may be formed by protruding and fixing the rear end sides of the landing doors 1a and 1b in a moving direction and bending the ends to form a hook shape.

In addition, the locking jaw (22a) (22b) is installed on the inner wall of the elevator cage, the installation so that the opening facing the opening face of the hook (21a) (21b) when closing the landing door (1a) (1b) Hooks (21a) (21b) is formed to engage the engaging jaw (22a) (22b) to form a combination.

The side departure prevention openings 20a and 20b may be formed to point to the entire height of the landing doors 1a and 1b or may be formed to have a predetermined width at a predetermined height. It is formed in the width of 10 to 20 millimeters so that when the user's body hit the landing door (1a) (1b) can absorb the shock to ensure safety and prevent damage.

According to the present invention having the above configuration, when the landing door is closed, the lower end of the lower departure prevention device fixedly attached to the lower part of the landing door is inserted into the bottom surface of the neighboring landing door and locked so that the impact is applied to the landing door. As the upper part of the escape guard is in close contact with the bottom of the adjacent landing door, the landing door is prevented from coming off, and the side departure prevention part that forms when the landing door is closed can also prevent departure of the landing door by a strong impact. It is possible to achieve safe operation of the elevator.

1 is a perspective view showing an elevator landing door in which a departure prevention device is conventionally installed.

2 is a perspective view showing the overall configuration according to the present invention.

Figure 3 is a perspective view showing the configuration of the lower departure prevention apparatus according to the present invention.

Figure 4 is a plan sectional view showing a state of installation of the side departure prevention tool according to the present invention.

Explanation of symbols on the main parts of the drawing

1a, 1b: landing door 2a, 2b: locking member

3: guide rail 4: rail groove

5a, 5b: locking member 6: circular protrusion

7: opening 10a, 10b: lower release prevention

11: Guide shoe 20a, 20b: Side escape prevention

21a, 21b: Hook 22a, 22b: Hook

Claims (3)

In a pair of elevator landing doors, which are opened and closed left and right in the longitudinal direction by a guide rail 3 of a guide seal installed at the landing floor of an elevator cage in contact with the landing passage of an elevator cage, the lower portion of the landing doors 1a and 1b has a lower end. The lower and protruding ends protrude a predetermined distance from the lower end and the distal end of the landing doors 1a and 1b, respectively, and the lower end is inserted into the rail groove 4 of the guide rail 3, and the protruding end is the landing door 1a and 1b. An elevator landing door provided with a departure prevention door, characterized in that the plate-shaped lower departure prevention openings (10a) (10b) is inserted into the bottom of the landing door (1a) (1b) facing the closing. According to claim 1, wherein the rear end side of the landing door (1a) (1b) is fixed to the inner wall of the elevator cage lifting passage of the landing wall corresponding to the hook 21 and the hook 21 is provided protruding along the moving direction. An elevator landing door provided with a separation prevention opening, characterized in that the side departure prevention opening 20 made of a locking step 22 is installed. The elevator landing door according to claim 1 or 2, wherein a plurality of guide shoes (11) are coupled to a lower end of the lower departure preventing opening (10a) (10b).

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