KR920003271Y1 - Manual unlock device of electric door lock - Google Patents

Abstract

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Description

Manual release device for electric door definition

1 and 2 are perspective views of the electric door lock with the present design device, Figure 1 is a perspective view with the roller lever removed, Figure 2 is a perspective view with the lever of the roller coupled.

3 is a perspective view of a mode change knob portion.

4 is a plan view showing a ratchet and a ratchet bolt attached to a door.

Figure 5 is a partial front view of the present invention, Figure 5a is a state that can not be manually released, Figure 5b is a state that can be manually released.

6 is a perspective view of a conventional electric door well.

7 is a partial front view of a conventional electric door well, FIG. 7a is a ruled state diagram, and FIG. 7b is a unlocked state diagram.

* Explanation of symbols for main parts of the drawings

11: plunger 12: stoppy

14: incision groove 14a, 14b: locking groove

15: Mode switch knob 16: Leaf spring

17: hanger

The present invention relates to an electric door well, and more specifically, a mode change knob is installed in a general electric door well so that the door can be opened manually in case of a power failure, and the door lock is always unlocked when it is necessary to open and close the door frequently. You can switch to the mode to use.

Conventionally used electric door locks are coupled to the ratchet 2, the shaft 3 fixed to the ratchet 2, and the shaft 3 as shown in FIG. Spring (4) for applying the rotational force of the lever, the lever (5) fixed to one end of the shaft (3), the roller lever (7) rotatably coupled to the support shaft (6), coupled to the roller lever (7) The magnetic force of the spring 9 and the electromagnet 10 which connects the roller 8 to the ratchet lever 5 by always applying a rotational force in the direction of the ratchet lever 5 to the roller 8 and the roller lever 7 which have been rotated. The plunger 11, which is moved by the stopper 12, which is fixed to the plunger 11 and controls the rotational movement of the roller lever 7, always pushes the plunger 11 in the latch 2 direction. It consists of a pring 13 which acts, a frame 1 supporting all the above-mentioned parts, and the like.

In addition, the locking projection 19 and the latch 18 are provided in the door like FIG. 4, and the latch 18 is connected to the ratchet 2. As shown in FIG.

The operation of the electric door tablet having the structure as described above will be described.

First, when no power is applied to the electromagnet 10, the plunger 11 is pushed in the direction of the latch 2 by the force of the spring 13 as shown in FIG. 6, so that the stopper 12 is formed on the roller lever 7. It is fitted in (7a).

Therefore, in the state in which the door lock is locked, the latch (2) and the shaft (3) are pulled by the handle to open the door, and the latch (18) caught on the locking projection (19) is subjected to the force to rotate in the direction of the arrow of FIG. In the case of receiving the force to rotate, the roller 8 is connected to the inclined surface 5a of the latch lever 5 at the end of the shaft 3 as shown in FIG. 7 (a), and the roller lever 7 The stopper 12 is inserted into the locking groove 7a of the roller, so the roller lever 7 is not rotatable, so the ratchet 2 does not rotate even when the handle is pulled, and thus the door does not open.

That is, the latch 2 restrains the rotation of the latch 18 in the door lock locking state.

In addition, when power is applied to the electromagnet 10 by pressing a button (not shown) in such a state, the plunger 11 opens the spring 13 by the magnetic force of the electromagnet 10 as shown in FIG. The stopper 12 fixed to the plunger 11 is disengaged from the locking groove 7a of the roller lever 7 while the roller 8 and the ratt 2 rotate while moving in the direction of the electromagnet 10 while being compressed. The door is opened because the latch 18 is released from the restraint of the latch 2 according to the possible state.

However, the conventional electric door well is a structure in which the door well is unlocked only when it is applied to the electromagnet 10, so that the door can be opened, for example, in the event of a power failure.

In addition, the conventional structure does not always lock the door lock in the unlocked state, accordingly, even if you do not need to lock the door due to the need to open and close the door frequently, it is automatically locked when closing the door so There is also inconvenience in using it.

The present invention is to solve such a problem in the prior art described in more detail by the accompanying drawings 1 to 5 as follows.

The latch lever 5 having the inclined surface 5a is fixed to the upper end of the shaft 3 of the ratchet 2 which is elastically installed with the spring 4 in the lower part of the frame 1, and the roller 8 is provided. The roller lever 7 is elastically installed on the support shaft 6 with a spring 9 so that the roller 8 is connected to the inclined surface 5a, and a stopper is provided below the electromagnet 10 provided at the top of the frame 1. In a case where the plunger 11 formed integrally with the spring 12 is elastically installed with the spring 13 so that the stripper 12 can be fitted into the locking groove 7a of the roller lever 7, the stopper 12 is adjacent to the stopper 12. Form the cutting groove 14 and the two locking grooves (14a) (14b) on one side of the frame (1) to couple the mode switching knob (15) to the cutting groove (14) to be movable and the mode switching knob (15) The stopper 12 is fixed to the leaf spring 16 and the hook piece 17 at the rear side thereof, and the end of the hook piece 17 is coupled to the stripper 12 to move the mode change knob 15. Can be moved It's done.

The operational effects of the proposed paper thus constructed are as follows.

First, FIG. 1, FIG. 2 and FIG. 5 (a) are views of a state in which the mode switching knob 15 is moved up and down in the drawing (for convenience, referred to as a "NORMAL CLOSE" state). The plunger 11 and the stopper 12 are moved downward by the force of the spring 13 so that the stopper 12 is caught by the roller lever 7 as long as power is not applied to the electromagnet 10 as in a normal door lock. Since the roller lever 7 cannot be rotated by being inserted into the groove 7a, the ratchet 2 restrains the rotation of the clamp 18 installed in the door, so that the door does not open even when the handle is pulled, and the electromagnet 10 When the power is applied, the plunger 11 is pulled out so that the stopper 12 comes out of the locking groove 7a of the roller lever 7 (unlocked state) so that the door can be opened.

FIG. 5B is a view of a state in which the mode switching knob 15 is moved upward in the drawing (manually referred to as a "NORMAL OPEN" state) by manual operation. In this state (locked state), the electromagnet 10 Regardless of whether the power is applied to the stopper 12 coupled with the hook piece 17 while the hook piece 17 fixed to the mode change knob 15 bows upwards as the mode switch knob 15 moves. ) And the plunger 11 are pulled upward so that the stopper 12 is pulled out of the catching groove 7a of the roller lever 7 so that the latch 18 installed in the door is always out of the restraint of the latch 2. Therefore, the door can be opened without applying power to the electromagnet 10.

That is, in the state in which the door knob of the present invention has the mode change knob 5 in the “NORMAL CLOSE” position, the door lock is always operated in the state of operating the door knob in the conventional state and in the state in which the mode change knob 15 is positioned in the “NORMAL OPEN” position. Of the two locking grooves 14a and 14b fixed to the unlocked state and formed with a leaf spring 16 formed on the back of the mode switching knob 15 when the mode switching knob 15 selects the mode. Since it is fitted in any one of the locking grooves to prevent the flow of the mode switching knob (15).

As described above, the present invention can easily open the door by manual operation in case of power failure by installing a mode change knob for manual operation on the door well, and can open and close the door conveniently by fixing the door well in the unlocked state if necessary. It works.

Claims (1)

The ratchet lever 5 having the inclined surface 5a is fixed to the upper end of the shaft 3 of the ratchet 2 elastically installed with the spring 4 under the frame 1, and the roller 8 is provided. The roller lever 7 is elastically installed on the support shaft 6 with a spring 9 so that the roller 8 is connected to the inclined surface 5a, and a stopper is provided below the electromagnet 10 provided at the top of the frame 1. 12, the plunger 11 is formed integrally with the spring 13 so that the stopper 12 can be fitted into the engaging groove (7a) of the roller lever (7), the frame adjacent to the stopper 12 (1) forming the incision groove 14 and the two locking grooves 14a and 14b on one side to movably couple the mode switching knob 15 to the incision groove 14, and On the back, the leaf spring 16 and the hook piece 17 are fixed, and one end of the hook piece 17 is coupled to the stopper 12 so that the stopper 12 may be moved according to the movement of the mode switching knob 15. Can Manual disengagement device of an electric door, characterized in that to be.