KR20020093527A - Car door locking device for elevator - Google Patents

Abstract

PURPOSE: A car door locking apparatus for an elevator is provided to prevent accidents and improve security by restricting the car door from being opened with locking firmly after starting the car or in moving the elevator. CONSTITUTION: A door coupling device having fixing and moving vanes(22,23) is installed in a hanger plate(2) of a car door, and a locking release roller of a landing door lock apparatus is installed in the door. A hook lever(104) is mounted in the rear part of the fixing vane and turned by elasticity of a coil spring(106). A detection vane(105) is installed in the front of the hook lever, and a hook part(103) is formed in the rear part and inserted to a fixing hole(1a) of a frame(1). A hook lever fixing unit(120) is installed around the fixing hole to restrict opening of the car door after starting the car. Turn of the detection vane is restricted by the locking release roller in placing the car at the platform, and the car door is opened by releasing the hook part from the fixing hole. The opening of the car door is restricted by fixing the hook lever with the hook lever fixing unit in moving the car.

Description

CAR DOOR LOCKING DEVICE FOR ELEVATOR}

The present invention relates to a car door locking device of an elevator, and more particularly, is simply configured around the door coupling device, so that the user can move the car when the interlock roller of the landing door lock device is not located between the fixed vane and the movable vane. By artificially opening the door, it mechanically restrains the car door from opening, and also prevents the car door from opening when the car moves, preventing the fall accident that may be caused by the passenger opening the car door while the car is leaving the platform. A car door locking device of a suitable elevator.

In general, elevators move up and down cars along a hoistway in a high-rise building and are used to transport passengers or cargo. Car doors are installed on the floors to enter and exit passengers or cargo on each floor. Boarding doors are provided respectively. The car door and the boarding door are typically provided with a driving source on the car side to open the boarding door together when the car door is opened. Thus, the door door coupler is a device that connects the boarding door to open when the car door is opened. DOOR COUPLING DEVICE is used.

In addition, if the landing door is opened manually when the car is out of the designated stop position, there is a risk of falling down the hoistway.Therefore, the door is locked so that the landing door cannot be opened arbitrarily, and the opening operation of the car door is stopped while the car is stopped at the designated position. A landing door lock device which is released by the door coupling device only when it is started is essentially installed.

On the other hand, if the car door is opened while the car is out of the platform, passengers who are in the car door may fall down the platform, so that the car door is mechanically locked so that the car door cannot be opened arbitrarily when the car is out of the platform. Many researchers have studied the CAR DOOR LOCKING DEVICE which is dismantled when stopped at.

However, the car door locking device of the conventional elevator as described above has a state in which the mechanical locking of the car door is securely performed when the car leaves the platform, while the passenger can artificially open the car door immediately after the car leaves the platform. There was a problem that can cause a fall accident.

An object of the present invention devised in view of the above problems is to provide a car door locking device of an elevator suitable for securing a certain stability by locking so that the car door is never opened immediately after starting or moving the car.

1 is a front view showing a state in which the car door locking device of the present invention is installed on the car door frame of an elevator.

2 is a front view of main parts of FIG. 1;

3 is a perspective view of main parts of FIG. 1;

Figure 4a, 4b, 4c is a cross-sectional view showing the operation of the car door locking device of the present invention.

Explanation of symbols on the main parts of the drawings

1: Car Door Frame 1a: Fixing Hole

2,2 ': Hanger plate 3,3': Car door

4: door coupling device 22: fixed vane

23: movable vane 26: landing door lock device

27: unlocking roller 100: car door locking device

101: bracket 102: fixing pin

103 hook portion 104 hook hook

104a: indentation hole 105: detection vane

106: coil spring 109: ball bearing

120: hook lever fixing means 121: engaging portion

122: locking member 123: solenoid

124: Roller

In order to achieve the object of the present invention as described above, a door coupling device provided with a fixed vane and a movable vane is installed on a hanger plate of a car door, and the locking of the landing door lock device is locked or released by the door coupling device. In a normal elevator in which the release roller is installed on the boarding door, a fixing hole is formed on the upper surface of the bracket to which the fixing vane is fixed, and the center portion is fixed to the center by a fixing pin and is installed to be rotatable in the horizontal direction. A hook lever having a hook portion formed to be inserted into and fixed to the hook lever, a detection vane fixed to a front end of the hook lever to detect the presence or absence of the unlocking roller between the fixed vane and the movable vane, and the front end of the hook lever One end is fixed at the center of the part and the other end is fixed to the bracket to reinforce the front end of the hook lever. The car door locking device for an elevator is provided that is configured to, when the elastic member and the movable car and for pulling the hook lever fixing means for fixing the hook lever from opening the car door, characterized.

Hereinafter, with reference to the embodiment of the accompanying drawings the car door locking device of the present invention configured as described above in more detail as follows.

1 is a front view showing a state in which the car door locking device of the present invention is installed on the car door frame of an elevator, FIG. 2 is a front view of the main part of FIG. 1, and FIG. 3 is a perspective view of the main part of FIG. Explanation will be given with the same reference numerals.

As shown, the car door frame 1 is fixedly attached to the upper end of the car (not shown) of the elevator in a horizontal direction, and a pair of hanger plates 2 (2 ') is mounted on the front of the car door frame 1. Car door (3) (3 ') hanging on the door) is installed to open and close, and the hanger plate (2) is provided with a door coupling device (4) to open the landing door together in the platform, the door couple The rear of the ring device 4 is provided with a car door locking device 100 so as to be mechanically locked when the car leaves the platform.

A drive motor 6 is installed at one side of the upper end of the car door frame 1, and the drive motor 6 is decelerated by a drive pulley 7 rotatably fixed to one front side of the car door frame 1. It is connected by a belt (8), the drive pulley (7) is connected to the driven pulley (9) and the drive belt (10) rotatably fixed on the opposite side, hanger plate (2) on the drive belt (10) 2 'is connected, and the rails 12 fixed to the rear of the hanger plate 2, 2' according to the forward and reverse driving of the motor 6 are fixed to the car door frame 1 It is rolled along and is designed to open and close the car doors 3 and 3 'by moving the hanger plates 2 and 2'.

The door coupling device 4 is a movable vane 22 fixed to one side of the base plate 21 fixed to one car door 3, and movable at a predetermined interval from the fixed vane 22. The vane 23, a pair of levers 24 connected to the lower end of the movable vanes 23 with a predetermined height difference, and coupled to the rear of the upper end of the movable vanes 23 and fixed to the car door frame 1 A protruding piece 28 for rotating the movable vanes 23 to widen the gap so that the locking release roller 27 of the landing door lock device, which is guided along the installed cam plate 25 and is a locking means of the landing door, can be opened and closed. It is comprised by the reverse rotation stop pin 29 which is respectively fixed to the lower side of the said lever 24, and suppresses reverse rotation of the lever 24 when the car door 3 is opened.

The car door locking device 100 is fixed to the upper surface of the bracket 101 to which the fixing vanes 22 are fixed by a fixing pin 102 at the center thereof, and is installed to be rotatable in a horizontal direction. The hook lever 104 in which the hook part 103 is formed so that it may be inserted and fixed to the fixing hole 1a formed in 1), and is fixed to the front end of the hook lever 104, is movable with the fixing vane 22 A detection vane 105 for detecting the presence or absence of the unlocking roller 27 between the vanes 23, one end of which is fixed to the center of the front end of the hook lever 104, and the other end of which is fixed to the bracket 101. And a coil spring 106 for elastically pulling the front end of the hook lever 104 and the hook lever 104 to secure the hook lever 104 so that the car door 3 does not open when the car moves. The hook lever fixing means 120 is provided.

The hook lever 104 is fixed to the fixing pin 102 in a state in which the ball bearing 109 is pressed into the press-in hole (104a) formed in the center portion is to be a smooth rotation.

The hook lever fixing means 120 is a locking portion 121 which is integrally formed to protrude to the rear of the hook portion 103 of the hook lever 104, and the locking portion 121 is rotated to be inserted, removable The “b” shaped locking member 122 installed at one end of the hook 121 so as to be fixed to the car door frame 1 and the rear end of the hook lever 104 just before the car moves are locked ( It is composed of a solenoid 123 that is fixed to the inner surface of the car door frame 1 so that the car door 3 is not artificially opened when the car is moved by being caught by the locking member 122.

A roller 124 is rotatably coupled to the front end of the solenoid 123 so as to rotate the rear end of the hook lever 104 by rolling.

An elevator equipped with the car door locking device 100 of the present invention configured as described above has a landing door lock device 26 which is a locking means in a state in which the car doors 3 and 3 'are closed and the car can move. The vane 23 of the door coupling device 4 is locked by the cam plate 25 and rotated to maximize the distance between the vane 22 and the fixed vane 22. Thus, the locking release roller 27 of the landing door lock device 26, which is a locking means of the landing doors installed in each landing, is allowed to pass therebetween.

In addition, as shown in FIG. 4A, as soon as the car doors 3 and 3 ′ are closed, the pins of the solenoid 123 are advanced by electrical control so that the rollers 124 installed at the ends of the pins are moved. The hook lever 104 rotates clockwise around the fixing pin 102 by being rolled while supporting the rear surface of the hook portion 103, and the engaging portion 121 formed at the rear end of the hook portion 103 is a car. The locking state is caught by the locking member 122 of the "b" shaped fixed to the door frame (1).

The above state is maintained immediately after the departure of the car or while the car is moving and moving inside the hoistway, so that the passenger may artificially open the car doors 3 and 3 'while the car is moving. Will be prevented.

On the other hand, when the platform is assigned to the car arrives by operating the solenoid 123 by the electrical control, the pin is retracted so that the roller 124 is separated from the hook portion 103 of the hook lever 104, the hook lever ( 104 is rotated counterclockwise around the fixing pin 102 by the restoring force of the coil spring 106 to support the detection vane 105 to the rear of the unlocking roller 27, the hook lever 104 The locking portion 121 formed at the rear end of the locking member 122 is released from the locking member 122, and in this state, the car doors 3 and 3 'are opened as shown in FIG. 4B.

If the car is out of the platform in the state in which the locking by the solenoid 123 is made as shown in FIG. 4A, when the power is interrupted, the pin of the solenoid 123 is retracted to its original state, as shown in FIG. 4C. Likewise, the hook portion 103 formed at the rear end of the hook lever 104 is rotated around the fixing pin 102 by the restoring force of the coil spring 106 in the counterclockwise direction. The locking state is inserted into the fixing hole (1a) formed in the frame (1) to prevent the passenger from opening the car door (3) (3 ') is locked, even in the inoperable state of the solenoid 123 due to power failure This will prevent accidents.

The door closing operation is performed in the reverse order of the above-described door opening operation. When the car doors 3 and 3 'and the door are completely closed, the door is locked again, and the movable vanes 23 and the fixed vanes 22 are closed. The gap is maximized.

As described above in detail, the car door locking device of the elevator of the present invention is provided with a detection vane at the front end of the hook lever rotated by the coil spring, and the rear end is inserted into and detached from the fixing hole formed in the car door frame. Hook hook fixing means is provided at the rear of the hook lever, and the hook lever fixing means operated by electric control is installed so that the car door is locked by the hook lever fixing means so as not to be opened artificially immediately after the car leaves the platform or during the movement. If the car is out of the platform and the power is interrupted and the hook lever fixing means becomes inoperable, the hook lever rotates and the hook part formed at the rear end is inserted into the fixing hole formed in the car door frame so that the mechanical locking is performed. Thus, when the car leaves the platform, the passenger opens the car door. This prevents accidents that may occur.

Claims (5)

A door coupling device provided with a fixed vane and a movable vane is provided on the hanger plate of the car door, and a unlocking roller of the landing door lock device, which is locked or released by the door coupling device, is installed on the landing door. In the elevator, the fixing vane is fixed to the upper surface of the bracket is fixed to the center portion is fixed to the center portion is installed to be rotated in the horizontal direction and the hook portion is formed to be inserted into the fixed hole formed in the car door frame at the rear end A detection vane fixed to the hook lever and the front end of the hook lever to detect the presence or absence of the unlocking roller between the fixed vane and the movable vane; one end is fixed to the center of the front end of the hook lever, and the other end is bracketed. Fixed to the elastic member for elastically pulling the front end of the hook lever and the car The car of the elevator, characterized in that the door is composed of a hook lever fixing means for fixing the hook lever from opening the car door locking apparatus. The elevator car door locking device according to claim 1, wherein the hook lever is press-fitted into a press-in hole formed in the center portion, and the ball bearing is press-fitted into the fixing pin to smoothly rotate. 2. The car door locking device of claim 1, wherein the elastic member is a coil spring. The hook lever fixing means of claim 1, wherein the hook lever is formed to integrally protrude to the rear of the hook portion of the hook lever, and the hook portion is pivoted so that one end portion is fixed to the car door frame around the hook portion to be inserted and detached. It is fixed to the inner side of the car door frame to prevent the artificial opening of the car door by the "b" shaped locking member to be installed and the rear end of the hook lever immediately after the start of the car to push the rear end of the hook lever to the locking member Car door locking device for an elevator, characterized in that consisting of a solenoid. The car door locking device of claim 4, wherein a roller is rotatably coupled to the front end of the solenoid so as to rotate the rear end of the hook lever by rolling.