KR102315686B1 - Doorknob unlocking device - Google Patents

Abstract

The present invention relates to a doorknob unlocking device. More particularly, the present invention relates to a doorknob unlocking device intended to enable a guardian to protect an infant trapped indoors or an elderly person having difficulty in movement, in which a latch of a doorknob is inserted into a latch insertion hole of a latch plate installed on a door frame, and when a hinge lever of a latch pushing device installed on the door frame outside the door is operated while the door is locked, a push bar connected to the hinge lever pushes the latch so that the latch is separated from the latch insertion hole and the door can be opened.

Description

Doorknob unlocking device

The present invention relates to a door handle unlocking device, and more particularly, the hinge lever of the latch pushing device installed on the door frame outside the door in a locked state by inserting the latch of the door handle into the latch insertion hole of the latch plate installed on the door frame. is operated, the push bar connected to the hinge lever pushes the latch so that the latch is separated from the latch insertion hole and the door can be opened, so that the guardian can protect an infant trapped indoors or the elderly who have difficulty moving.

The conventional door handle is registered and known as Utility Model Registration No. 20-0279071 (name of the design: door handle structure that is easy to open).

As shown in FIG. 1 , the door handle has handles 2 and 3 installed on the inside and outside of the door 1 that are hingedly installed on the door frame 5, respectively, so that the inside and outside handles 2 and 3 can be held by hand. When holding and turning, the spindle (not shown) inside the door handle rotates, and on the side of the door 1, the latch 4, which protrudes and retracts toward the door frame 5 by the rotation of the spindle, is elastically installed, and this A latch plate 6 having a latch insertion hole 7 into which the latch 4 is inserted is installed on the door frame 5 corresponding to the latch 4 of the door handle, and a locking device (not shown) is provided on the door handle. is installed and locks the locking device, the movement of the latch 4 inserted into the latch insertion hole 7 of the latch plate 6 is stopped and the lock of the door handle is maintained.

When the door on which the conventional conventional door handle is installed is closed and the locking device of the door handle is locked, and an emergency occurs while an infant or an elderly person having difficulty in action is trapped in the room, the locking device of the door handle is closed. A guardian can enter the room by unlocking it with a key and can protect or escape infants or the elderly who have difficulty in behavior, but if the key cannot be found, there is a problem in that it is not possible to rescue the infant or the elderly who are inconvenient in the room.

Utility Model Registration No. 20-0279071 (Name of design: door handle structure for easy opening) Utility model registration No. 20-464724 (Name of design: dial lock for number replacement)

The present invention is to solve the above problems, when the latch of the door handle is inserted into the latch insertion hole of the latch plate installed on the door frame and the hinge lever of the latch pushing device installed on the door frame outside the door is operated while the door is locked, The push bar connected to the hinge lever pushes the latch so that the latch is separated from the latch insertion hole and the door can be opened. do.

The present invention for achieving the above object, in that the latch of the door handle installed on the door is inserted into and removed from the latch insertion hole of the latch plate installed on the inner surface of the door frame; A door handle unlocking device is installed to open the door by pushing the latch inserted into the latch insertion hole of the latch plate to the outside, and the door handle unlocking device is installed on the outer surface to latch the latch inserted into the latch insertion hole. It is composed of a latch pushing device for pushing the plate to the outside, and a dial lock unit selectively covering the hinge lever exposed to the outside of the outer surface portion; In the latch pushing device, a front cover having a slide hole formed in a vertical direction on the front is installed with a screw on the outer surface of the outer surface of the installation hole formed on the outer surface, and a rear bracket inserted into the inner space of the door frame is installed at the rear of the front cover. and a guide groove for guiding the push rod is formed on the side of the rear bracket facing the latch, and a hinge portion for installing a hinge lever is installed on the rear portion; A rear end of the hinge lever is hinged to the hinge portion, and the front end of the hinge lever is installed to protrude forward of the front cover through the slide hole, and the pusher body is guided in the guide groove in the middle of the hinge lever and the tip The rear end of the push bar is installed in a hinged manner so that the pushing unit pushes the inclined surface of the latch so that the latch is released from the latch insertion hole to the outside; The dial lock unit is installed on the outer surface of the upper side of the front cover of the clasp pushing device, and this dial lock unit has the same structure as the lock and release portion that is unlocked by turning several dials in a known dial lock to match the password. of the locking and unlocking part of the dial lock body included in the locking and unlocking part, and the spindle hole is formed to penetrate vertically, and the upper handle is installed on the upper part of the vertical spindle that is installed vertically through the spindle hole, , It is characterized in that the lower end of the vertical spindle protruding downward of the dial lock body includes a configuration in which a hinge lever cover is installed to surround and cover the outer end of the hinge lever exposed to the outside of the front cover.

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The door handle unlocking device of the present invention as described above is inserted into the latch insertion hole of the latch plate installed on the door frame, and the hinge lever of the latch pushing device installed on the door frame outside the door while the door is locked. When operated, the push bar connected to the hinge lever pushes the latch so that the latch can be separated from the latch insertion hole and the door can be opened. there will be

1 is a perspective view showing a conventional door handle.
Figure 2 is a perspective view showing the installation state of the door handle unlocking device according to the present invention.
Figure 3 is an exploded perspective view showing the latch pushing device included in the present invention.
4 (A) (B) is a plan sectional view showing the working relationship of the latch pushing device included in the present invention.
5 is a side cross-sectional view showing the installation state of the present invention.
Figure 6 is a perspective view showing a vertical spindle installed in the dial lock unit included in the present invention.
7 is a cross-sectional view showing the structure of a conventional dial lock.

Hereinafter, the door handle unlocking device according to the present invention will be described with reference to the accompanying drawings 2 to 7 as follows.

In the door handle unlocking device 100 according to the present invention, as shown in FIGS. 2 to 5 , the door handle 10 is installed on the door 1, and the latch 4 included in the door handle 10 is provided. Unlocking the door handle that opens the door 1 by pushing the latch 4 inserted into the latch insertion hole 7 of the latch plate 6 into the door frame 5 on which the insertable latch plate 6 is installed The device 100 is installed on the door frame 5 close to the latch plate 6 .

The latch 4 is installed in the latch unit 4b which is inserted and installed inside the door 1 through the side of the door 1, and the latch 4 has an inclined surface 4a on the door 1 closing side. The spring (4c) is elastically installed behind the latch (4) inside the latch unit (4b) so that the latch (4) is elastically protruded from the side of the door (1).

In addition, the door frame 5 on which the clasp plate 6 is installed has a space portion 5a formed therein, and the inner surface of the door frame 5 corresponding to the end of the door 1 is the width of the door 1 . The inner surface portion 8 corresponding to the amount, the stepped portion 8a on which the end of the door 1 is caught, and the outer surface portion 9 that becomes the outside of the door 1 when the door 1 is closed are formed in a stepwise fashion. is formed

The door handle unlocking device 100 according to the present invention is installed on the outer surface portion 9 of the door frame 5 , is installed on the outer surface portion 9 of the door frame 5 , and is installed in the latch insertion hole of the latch plate 6 . The latch pushing device 20 for pushing the latch 4 inserted into the latch plate 6 to the outside of the latch plate 6 and the hinge lever 27 exposed to the outside of the outer surface part 9 are selectively covered It includes a dial lock unit 30, and an installation hole 9a for inserting and installing the clasp pushing device 20 is formed in the outer surface portion 9 on which the clasp plate 6 is installed.

As shown in Figures 2 and 5, the latch pushing device 20 has a front cover 21 having a slide hole 22 formed in a vertical direction on the front surface of the door frame 5 and the outer surface portion of the installation hole 9a ( 9), a rear bracket 23 inserted into the space 5a of the door frame 5 is installed at the rear of the front cover 21, and the rear bracket 23 is on the side facing the latch A guide groove 25 for guiding the pusher is formed on the side part 24, a hinge part 26 for installing a hinge lever is installed on the rear part, and the guide groove 25 is a plate that pushes the pusher toward the latch side on the outside of the side part 24 on the rear side. A spring 29 is provided resiliently.

Then, the rear end of the hinge lever 27 is installed on the hinge portion 26 by a hinge, and the front end of the hinge lever 27 protrudes forward of the front cover 21 through the slide hole 22 . installed, and in the middle of the hinge lever 27, the pusher body part is guided to the guide groove 25, and the tip pushing part 28a pushes the inclined surface 4a of the latch 4, and the latch 4 is inserted into the latch insertion hole. (7), the rear end of the push bar (28) to be separated to the outside is installed in a hinge type.

The dial lock unit 30 is installed on the outer surface part 9 of the upper side of the front cover 21 of the latch pushing device 20 as shown in FIGS. 2, 5, and 7, and the dial lock unit 30 is It has the same structure as the locking and unlocking part (A) included in the known dial lock (see FIG. 7), and the known locking and unlocking part (A) is shown in FIG. 4 of Utility Model Registration No. 20-464724. A detailed description of the same part as the lock and release unit (A) known to be there will be omitted.

The lock and release unit (A) is not limited to those included in the design of Utility Model Registration No. 20-464724, and is included in various known dial locks that are unlocked when the password is correct by turning several dials. It should be noted that the locking and unlocking part (A) can be applied to the present invention.

An embodiment of the dial lock unit 30 is installed on the outer surface portion 9 of the upper side of the front cover 21 , and has a spindle hole in the dial lock body 31 included in the dial lock unit 30 in the vertical direction. 32 is formed, and a vertical spindle 33 is installed to penetrate vertically in the spindle hole 32, and several dials 37 are rotated on the outer periphery of the spindle body 34 of the vertical spindle 33. However, these dials 37 are only partially exposed to the outside of the dial lock body 31, and each dial 37 is caught on the dial fixture 38 elastically installed inside the dial lock body 31, The configuration in which the vertical spindle 33 is locked and unlocked by matching the number of the dial is the same as the conventional locking and unlocking portion (A).

The vertical spindle 33 has an upper handle 35 installed on the upper part of the spindle body 34 exposed to the upper part of the dial lock body 31 , and a spindle body 34 protruding downward of the dial lock body 31 . ), a hinge lever cover 36 covering the outer end of the hinge lever 27 exposed to the outside of the front cover 21 is installed at the lower end of the front cover 21, but the hinge lever cover 36 is formed so that the lower side is open. .

The operational relationship of the present invention configured as described above will be described with reference to FIGS. 1 to 6 as follows.

As shown in FIGS. 1 and 2, in the state in which the door 1 is closed by pulling or pushing the inner or outer side 2, 3 of the door handle 10, a lock such as a lock button installed on the door handle 10 When the door handle 10 is locked by manipulating the door handle 10 , the same door handle 10 as the conventional door handle 10 is locked.

In this way, when the door 1 is closed and the door handle 10 is locked, there are cases where there are only infants or the elderly and the infirm in the room where the door 1 is installed.

As such, when an emergency situation occurs while an infant or an elderly person with limited mobility is trapped indoors, the guardian unlocks the door handle 10 from the outside, opens the door 1, and enters the room. Rescuing or protecting infants and the elderly and disabled.

The unlocking of the locking state of the door handle 10 can be simply unlocked by using a key, but when the key cannot be found, the door handle unlocking device 100 according to the present invention ) can be used to release the locked state of the door handle 10 .

First, in the door handle unlocking device 100 according to the present invention, the vertical spindle 33 descends as shown in the imaginary line B of FIG. 5 and FIG. The installed hinge lever cover 36 wraps and covers the outer end of the hinge lever 27 protruding outward from the front surface of the front cover 21, and the locking and unlocking parts A of the dial lock unit 30 are locked. The hinge lever 27 cannot be operated.

In such a state, when it is desired to release the locked state of the door handle 10 using the door handle unlocking device 100 according to the present invention, the door frame 5 outside the door 1 as shown in FIGS. 2 and 5 . ) That is, if the password is set by turning several dials 37 installed on the dial lock unit 30 installed on the outer surface portion 9 of the door frame 5, the known locking and unlocking portion A of the dial lock has the same structure. The locked state of the locking and unlocking unit (A), which has the same action as the above, is released.

When the locking state for the locking and releasing part (A) is released in this way, hold the upper handle 35 of the vertical spindle 33 installed in the vertical direction in the spindle hole 32 and pull the vertical spindle 33 upward, as shown in FIG. , As shown in (b) of FIG. 4, as the vertical spindle 33 rises, the hinge lever cover 36 of the lower side of the vertical spindle 33 also rises, so that the dial lock unit 30 of the lower front cover 21 of The hinge lever 27 protruding outward is exposed.

As the hinge lever 27 of the latch pushing device 20 is exposed to the outside of the front cover 21 as above, the protector connects the exposed end of the hinge lever 27 with "C" in (B) of FIG. Similarly, when pushed toward the door (1) side, the rear end of the hinge lever (27) is hinged on the hinge part (26) of the rear bracket (23), and the hinge part (26) is pushed on the hinge lever (27) in front of the pusher (28). The end of the is installed in a hinge type, so that the push bar 28 is pushed toward the clasp 4 like "D" in the direction of pushing the hinge lever 27 .

At this time, a plate spring 29 is installed on the side portion 24 of the rear bracket 23 to push the pusher 28 in a hinged manner toward the inclined surface 4a of the clasp 4, so that the pushing part on the tip side of the pusher 28 is installed. (28a) pushes the inclined surface 4a of the latch 4 like "E", so that the latch 4 elastically installed in the latch unit 4b is pushed into the inside of the door 1 like "F". .

As the latch 4 is pushed into the inside of the door 1 in this way, the latch 4 is separated from the latch insertion hole 7 of the latch plate 6 installed on the inner side part 8 and the door 1 is opened. In this way, the guardian can enter the room and protect or rescue infants or the elderly who have difficulty in mobility who were trapped indoors.

1: entrance door 2: inner handle part 3: outer handle part
4: latch 5: door frame 6: latch plate
7: latch insertion hole 8: inner surface part 9: outer surface part
10: door handle 20: latch pushing device 21: front cover
22: slide hole 23: rear bracket 24: side part
25: guide groove 26: hinge portion 27: hinge lever
28: push rod 29: leaf spring 30: dial lock unit
31: dial lock body 32: spindle hole 33: vertical spindle
34: spindle body 35: upper handle 36: hinge lever cover
37: dial 38: dial fixture
100: door handle unlocking device

Claims (2)

In the case where the latch 4 of the door handle 10 installed on the door 1 is inserted into and removed from the latch insertion hole 7 of the latch plate 6 installed on the inner surface portion 8 of the door frame 5;
Install the door handle unlocking device 100 that pushes the latch 4 inserted into the latch insertion hole 7 of the latch plate 6 to the outside to open the door 1,
The door handle unlocking device 100 is a latch pushing device 20 installed on the outer surface portion 9 and pushing the latch 4 inserted into the latch insertion hole 7 to the outside of the latch plate 6, composed of a dial lock unit 30 selectively covering the hinge lever 27 exposed to the outside of the outer surface portion 9;
The shackle pushing device 20 is a front cover 21 having a slide hole 22 formed in a vertical direction on the front side is installed with a screw on the outer surface portion 9 outside the installation hole 9a formed in the outer surface portion 9, and , a rear bracket 23 inserted into the inner space 5a of the door frame 5 is installed at the rear of the front cover 21 A guide groove 25 for guiding the push rod is formed, and a hinge portion 26 for installing a hinge lever is installed on the rear portion;
The rear end of the hinge lever 27 is hinged to the hinge part 26, and the front end of the hinge lever 27 is installed to protrude forward of the front cover 21 through the slide hole 22, , in the middle of the hinge lever 27, the push body part is guided to the guide groove 25, and the tip pushing part 28a pushes the inclined surface 4a of the latch 4, so that the latch 4 is inserted into the latch insertion hole 7 The rear end of the pusher 28 to be detached from the outside is installed in a hinged manner;
The dial lock unit 30 is installed on the outer surface portion 9 on the upper side of the front cover 21 of the clasp pushing device 20, and the dial lock unit 30 includes several dials 37 in a known dial lock. It is composed of a locking and unlocking part (A) having the same structure as the locking and unlocking part (A) that is unlocked according to the password by turning it,
A spindle hole 32 is formed to penetrate vertically in the dial lock body 31 included in the locking and unlocking part A, and the vertical spindle 33 is installed vertically through the spindle hole 32. The upper handle 35 is installed on the upper part, and the lower end of the vertical spindle 33 protruding downward of the dial lock body 31 surrounds the outer end of the hinge lever 27 exposed to the outside of the front cover 21 . A door handle unlocking device, characterized in that it includes a configuration in which a hinge lever cover (36) for covering is installed. The door handle unlocking device according to claim 1, wherein a leaf spring (29) for pushing the push rod toward the latch is elastically installed on the outside of the side part (24) on the rear side of the guide groove (25).

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