KR20230163748A - Easy-to-install door lock - Google Patents

Abstract

The present invention relates to a door lock that is easy to install. More specifically, the present invention relates to a door lock that is easy to install. Rather than drilling a large hole for installing a door lock in a hinged door, only three small holes of 10 mm or less are drilled on the door with a general drill. By allowing door locks to be installed, it is possible to easily install door locks while simultaneously solving problems such as the need for dedicated tools and delays in work time when installing door locks after drilling holes of 54 mm and 22 to 25 mm. It is intended to be so.
The present invention includes inner and outer handle units (20, 30) installed facing each other on the inner and outer sides of the door (1), and inner and outer handles (21, 31) included in the inner and outer handle units (20, 30). The latch bolt unit (10), where the tip latch bolt (11) appears as it is turned and locks and unlocks the strike unit (40) installed on the door frame (6), and the door frame (6) at a position corresponding to the latch bolt (11). ) in a door lock consisting of a strike unit 40 through which the latch bolt 11 enters and exits;
A latch installation part 25 is installed horizontally on one side of the inner cover 23, which is included in the inner handle unit 20 and is installed on the inner surface of the door 1, and the inner cover 23 and the latch installation part are The inner space of (25) is formed to communicate with each other, and the inner cover 23, which communicates with each other, is installed at the front end of the latch installation part 25, and the tip latch bolt of the latch bolt unit 10 is installed in the inner space of the latch installation part 25. A latch hole (26) into which (11) appears is formed;
The screw 27 inserted into the screw hole 24 formed in the inner cover 23 penetrates each of the pair of screw passing holes 5 formed in the door 1 and covers the outer cover outside the door 1. It is fastened to the screw fastening portion 36 formed at (35), penetrates the shaft hole 14 of the latch bolt unit 10, and moves the latch bolt 11 as the inner and outer handles 21 and 31 are turned. The shaft 33 passes through the shaft insertion hole 4 formed in the door 1 between the screw passing holes 5 and is installed to be connected to the inner center of the inner and outer covers 23 and 35. It is characterized by being

Description

Easy-to-install door lock}

The present invention relates to a door lock that is easy to install, and more specifically, to install a door lock in a hinged door (hereinafter abbreviated as "door") without drilling a large hole, but by drilling only three small holes of 10 mm or less. By allowing the door lock to be installed on a door with a hole drilled using a regular drill, problems such as the need for a dedicated tool and delay in work time are eliminated when installing a door lock after drilling a 54mm hole or a 22-25mm hole. This is to allow you to easily install the door lock while solving the problem all at once.

A conventional conventional door lock 100 is known, and as shown in Figures 1 and 2, it is inserted and installed inside the width direction of the door 1, and has a tip latch bolt ( 11) is pressed into the locking hole of the strike unit installed in the door frame (not shown) when closing the door (1) in a hinged manner, and when the inner and outer handles (21, 31) are turned to open the door (1), the latch bolt body The latch bolt unit (10), which allows the latch bolt (11) to go into the (13) side and come out of the locking hole of the strike unit, is installed on the inner and outer sides of the door (1) and is pushed with the inner and outer handles (21, 31) turned. It opens and closes the door (1) by pulling and consists of an inner and outer handle unit (20, 30) in which a key hole (32) is installed in the outer handle (31) and a lock button (22) is installed in the inner handle (21).

When installing the conventionally known door lock 100 on the door 1, there is a side hole 2 for inserting and installing the latch bolt unit 10 in the width direction on the side of the door 1, and a door ( After forming the front and rear holes (3) for installing the inner and outer handle units (20, 30) on the interior and exterior sides of 1) through the side hole (2), the latch bolt unit (10) is inserted through the side hole (2). ) After inserting the rear of the latch bolt body (13), the mounting flange (12) formed on the outer side of the cylindrical latch bolt body (13) is screwed and installed on the side of the door (1).

Next, insert the inner and outer handle units (20, 30) facing each other into the front and rear holes (3) on the indoor and outdoor sides of the door (1), and attach the shaft (33) installed on the outer handle unit (30) to the latch bolt unit. It penetrates the shaft hole (14) of (10), and inserts a key into the key hole (32) of the outer handle unit (30) and rotates in the direction of rotation to insert a rotating rod (34) that locks and unlocks the inner handle unit ( It is connected to the inner part of the lock button (22) of the inner handle unit (20), and the screw (26) is inserted into the screw hole (24) formed in the inner cover (23) of the inner handle unit (20) to connect the tip threaded part to the outer cover (35). By fastening to the screw fastening portion 36 formed inward, installation of the door lock 100 is completed.

At this time, the outer diameter of the inner cover 23 included in the inner handle unit 20 and the outer cover 35 included in the outer handle unit 30 is larger than the front and rear holes 3 drilled in the door, so the front and rear holes ( 3), and the screws that connect the inner and outer covers (23, 35) to each other are inserted into the front and rear holes (3) to couple the inner and outer covers (23, 35) to each other.

In order to install such a conventional door lock (100) on the door (1), the side holes (2) and the front and rear holes (3) must be drilled in the side and front and rear parts of the door (1) to communicate with each other. (2) is 22~25mm, and the front and rear holes (3) are 54mm, so the holes are large, so a dedicated tool is required to drill the side holes (2) and the front and rear holes (3), and it takes a lot of time to drill. During the process, a problem occurred with a lot of debris being generated.

In addition, if the general public wants to install the door lock themselves, they must have a dedicated tool to drill the side hole (2) and the front and rear holes (3), but since ordinary households do not have the special tool, it is necessary to The problem is that users cannot install it themselves.

These days, users purchase the products they need from online markets and install them themselves, significantly reducing installation costs and installing them at the time the user needs. The side holes (2) and front and rear holes (3) above are used. ), there was the problem of having to schedule a visit with the operator and the installation cost being excessive.

Patent Registration No. 10-2088947 (Name of invention: Driving assembly of lever-type door lock) Patent Registration No. 10-1367639 (Name of invention: Digital door lock device) Patent Registration No. 10-2023853 (Title of invention: Crime prevention room door with smart door lock applied to rooms in public spaces)

The present invention is intended to solve the above problems, by allowing a door lock to be installed on a swing door by drilling only three small holes of 10 mm or less with a general drill without drilling a large hole for installing the door lock in the swing door. When installing a door lock after drilling a 54mm hole and a 22-25mm hole, the technical task is to make it possible to install the door lock easily while simultaneously solving problems such as the need for a dedicated tool and delay in work time.

The present invention for achieving the above object includes an inner and outer handle unit installed facing each other on the inner and outer sides of the door, and as the inner and outer handles included in the inner and outer handle units are turned, the tip latch bolt appears and is attached to the door frame. In a door lock consisting of a latch bolt unit that locks and unlocks the installed strike unit, and a strike unit that is installed on the door frame at a position corresponding to the latch bolt and allows the latch bolt to enter and exit;

A latch installation part is installed horizontally on one side of the inner cover included in the inner handle unit and installed on the inner side of the door, and the inner space of the inner cover and the latch installation part are formed to communicate with each other, and the inner cover communicates with each other at the tip of the latch installation part. A latch hole is formed into which the latch bolt at the tip of the latch bolt unit installed in the inner space of the latch installation portion appears;

The screw inserted into the screw hole formed in the inner cover passes through a pair of screw passing holes formed in the door, is fastened to the screw fastening part formed in the outer cover outside the door, and penetrates the shaft hole of the latch bolt unit. The shaft, which causes the latch bolt to emerge as the inner and outer handles are turned, is characterized in that it is installed to be connected to each other at the inner center of the inner and outer covers by penetrating the shaft insertion hole formed in the door between the screw passing holes. .

The easy-to-install door lock of the present invention as discussed above allows the door lock to be installed on a swing door with only three small holes of 10 mm or less drilled with a general drill, compared to the conventional 54 mm hole and the door lock. This has the effect of allowing you to easily install a door lock while simultaneously resolving all problems that arise when drilling holes of 22 to 25 mm and then installing the door lock in those holes.

In addition, in the door lock according to the present invention, when the latch pusher is pressed on the strike unit, the door lock is unlocked and the pressed state of the latch pusher is announced through a buzzer or voice signal, so that the latch pusher can be used in facilities attended by children in kindergarten or lower grades of elementary school. When pressed, the management office of a kindergarten or the teacher's office of an elementary school recognizes that the child is alone and is effective in comforting and protecting the embarrassed child.

Figure 1 is an exploded perspective view showing the installation state of a conventional door lock.
Figure 2 is a plan cross-sectional view showing the installation state of a conventional door lock.
Figure 3 is an exploded perspective view showing the installation state of the door lock according to the present invention.
Figure 4 is a plan cross-sectional view showing the installation state of the present invention.
Figure 5 (a) (b) is a diagram showing the working relationship of the door lock according to the present invention.
Figure 6 is a plan cross-sectional view showing the strike unit included in the present invention.
Figure 7 is an enlarged cross-sectional view of portion "A" in Figure 6.

Hereinafter, the easy-to-install door lock according to the present invention will be described with reference to the attached drawings Figures 3 to 7.

The easy-to-install door lock (hereinafter abbreviated as "door lock") according to the present invention is installed facing each other on the inner and outer sides of the hinged door (1), as shown in Figures 3 and 4. As the inner and outer handle units (20, 30) and the inner and outer handles (21, 31) included in the inner and outer handle units (20, 30) are turned, the tip latch bolt (11) appears and is installed on the door frame (6). A latch bolt unit (10) that locks and unlocks the strike unit (40), and a strike unit (40) installed on the door frame (6) at a position corresponding to the latch bolt (11) through which the latch bolt (11) enters and exits. It is about door locks that are made.

A latch installation portion 25 is installed on one side of the inner cover 23, which is included in the inner handle unit 20 and installed on the inner surface of the door 1, in a horizontal direction toward the strike unit 40, and the inner cover (23) and the inner space of the latch installation part 25 are formed to communicate with each other, and the inner space of the inner cover 23 and the latch installation part 25, which communicate with each other, are installed at the front end of the latch installation part 25. A latch hole 26 is formed at the tip of the bolt unit 10 into which the latch bolt 11 appears.

In addition, the screw 27 inserted into the screw hole 24 formed in the inner cover 23 penetrates a pair of screw passing holes 5 formed by drilling the door 1, respectively, and passes through the door (1). It is fastened to the screw fastening portion 36 formed on the outer cover 35 included in the outer handle unit 30 located on the outside of 1), and penetrates the shaft hole 14 installed in the latch bolt unit 10. The shaft 33, which causes the latch bolt 11 to appear as the inner and outer handles 21 and 31 are turned, is formed by drilling a hole in the door 1 between the screw passing holes 5. ) and are installed to be connected to each other at the inner centers of the inner and outer covers (23, 35).

For reference, the structure in which the latch bolt 11 appears as the inner and outer handles 21 and 31 are grabbed and turned is the same as that of a conventionally known door lock, so detailed description thereof is omitted, and is shown in Figures 1 and 2. It should be noted that the known conventional door lock is a product (model name: Star GR-S) manufactured by “Hyundai Precision Co., Ltd.”, a Korean company.

As shown in FIGS. 3 and 6, the strike unit 40 is a latch through which the latch bolt 11 enters and exits the latch bolt 11 corresponding portion on one side of the strike box 41, which is installed by screws on the door frame 6. A locking hole 42 is formed, and on the other side of the latch locking hole 42, pusher installation holes 43 are formed to face each other, and a latch bolt (42) is inserted into the pusher installation hole 43. The rear of the latch pusher 44, which pushes 11) to the outside of the strike box 41, is inserted and installed.

At this time, on both sides of the latch pusher 44, sawtooth elastic snap protrusions 45 forming inclined surfaces on the outer surfaces are elastically formed, and the latch pusher 44 main body on both sides of the elastic snap protrusions 45 has cut portions 45a. ) is formed to provide elasticity to the elastic snap protrusion (45).

In addition, inside the latch pusher 44, when the rear of the latch pusher 44 pushes the latch bolt 11 by pushing the latch pusher 44, the switch is activated by the force pressing the front end of the latch bolt 11. A switch 46 that is turned on to sound a buzzer or send a voice signal is installed.

This means that when a kindergarten child or elementary school child inadvertently locks the lock unit included in the door lock 100 of the present invention from the outdoor side without knowing that he or she is alone indoors, the child presses the latch pusher 44 to lock the latch bolt 11. If the child is pushed out and goes outdoors, the buzzer or voice signal can be heard in a management room such as the teacher's office to protect the child.

And, as shown in FIGS. 6 and 7, the latch engaging hole 42 is in the form of a concave groove 47 for a predetermined depth d from the rear end line of the strike box 41 toward the pusher installation hole 43. It is formed in a position where the latch bolt 11 is pushed out only about halfway, so that the latch bolt 11 is pushed out of the latch locking hole 42 of the strike box 41 and the locked state is released.

The operational relationship of the present invention configured as described above will be explained with reference to FIGS. 3 to 7 as follows.

If you want to install the door lock 100 according to the present invention, as shown in Figures 3 and 4, make one 10mm shaft insertion hole (10mm drill and 5~6mm drill) on the hinged side of the door (1). 4) and two 5-6mm screw through holes (5) are drilled in the inner and outer directions.

Next, the shaft 33 formed in the shape of a square bar, which is installed in the center of the inner cover 23 of the inner handle unit 20 on the indoor side of the door 1, is inserted into the shaft insertion hole 4. , while aligning the screw hole 24 formed in the inner cover 23 with the screw passing hole 5 formed in the door 1, and inserting the screw 27 into the aligned screw hole 24, the tip of the screw is It is inserted into the screw through hole (5).

At this time, since the threaded end of the screw (27) is not fastened to the outer handle unit (30), hold the inner handle unit (20) with one hand to prevent the inner handle unit (20) from falling back, and in that state, open the door (1). On the outdoor side, the inside of the outer cover 35 of the outer handle unit 30 faces the inside of the inner cover 23, and the tip of the shaft 33 is inserted into the center of the outer cover 35, and the screw passing hole is inserted. When the tip threaded part of the screw 27 inserted at (5) is fastened to the screw fastening part 36 formed in the form of a female threaded tube inside the outer cover 35, the installation work of the inner and outer handle units 20 and 30 is completed. It's done simply.

When installing the inner handle unit (20) on the inner surface of the door (1) as above, the latch installation part (25) installed horizontally on one side of the inner cover (23) is located on the side of the door frame (6) where the strike unit (40) is to be installed. It is natural that it should be installed facing, and as the latch installation part 25 is installed facing the door frame 6 where the strike unit 40 is installed, the inner space communicates with the latch installation part 25 and the inner space. The latch bolt unit 10 is installed on the inside of the cover 23, so that the latch bolt 11 is elastically installed at the distal end of the latch bolt unit 10, and the latch hole 26 is formed at the distal end of the latch installation portion 25. It is in a state of protruding outward through.

In this state, the latch bolt 11 and the corresponding strike unit 40 are installed on the door frame 6. At this time, as shown in FIGS. 3 and 6, the latch engaging hole 42 of the strike box 41 is latch. When installed facing the bolt 11, the installation work of the strike unit 40 is also completed, and the installation work of the door lock 100 according to the present invention is easily completed.

Comparing the present invention with the conventional door lock in this state, the conventional known general door lock was unproductive because the installation work was cumbersome as the latch bolt unit 10 was inserted and installed inside the width direction of the door 1. The invention is that the latch bolt unit (10) is installed on the inside of the inner handle unit (20), so that there are three holes in the door (1), namely, one 10mm shaft insertion hole (4) and two 5-6mm screw through holes (5). It can be easily installed by drilling a hole with a regular drill and fastening four screws.

In addition, when assembling the latch pusher 44 into the pusher installation hole 43 of the strike box 41, the latch pusher 44 with the switch 46 installed on the rear side is inserted into the pusher installation hole 43. , the rear outer diameter of the latch pusher (44) is formed to a size that can be loosely inserted into the pusher installation hole (43), so that it is easily inserted and then gets caught in the pusher installation hole (43) on the inclined surface of the elastic snap protrusion (45), but the latch pusher ( The elastic snap protrusion (45) is elastically contracted by the cut portion (45a) formed on both sides of the elastic snap protrusion (45) by the force of pushing the pusher (44), and after passing through the pusher installation hole (43), the elastic snap As the protrusion 45 expands to its original position by its own elasticity, the vertical portion is caught inside the pusher installation hole 43 and is assembled so as not to deviate to the outside.

When opening and closing the door (1) with the door lock (100) according to the present invention installed, the inner and outer handles (21, 31) are held and turned, forming a square bar shape in the same way as the known latch bolt unit (10). The shaft 33 rotates, and as the shaft 33 rotates, the latch bolt 11 emerges from the latch hole 26 at the tip of the latch installation portion 25, and the latch locking hole ( 42), the door is locked, and when the latch bolt (11) comes out of the latch locking hole (42), it is unlocked.

In the door lock 100 according to the present invention, a lock button 22 is installed on the inner handle 21 and a key hole 32 is installed on the outer handle 31, so that locking and unlocking is possible in the same way as conventionally known door locks. will be.

In addition, when the door lock 100 according to the present invention is turned by inserting a key into the key hole 32 and the locking function of the door lock is locked, the shaft 33 ), the inner and outer handles (21, 31) do not turn due to the locking of the rotary rod (34) and cannot be unlocked.

In this situation, when the door lock function is locked without knowing that children in kindergarten or lower grades of elementary school are inside, some of the children are unable to operate the lock button (22) and only grab the inner handle (21), which does not turn, and turn the door. When you try to open it, you may be confused because the lock function is not released and the inner handle (21) does not turn.

Considering this case, teachers teach that the door opens when the latch pusher (44) installed on the strike unit (40) is pressed, so that a child presses the latch pusher (44), or a panicked child pulls the inner handle unit (from inside the door). When the latch pusher 44 is pressed in the process of touching 20) or the strike unit 40, the latch pusher 44 pushes the latch bolt 11 out of the latch locking hole 42, allowing the door to be opened.

The rear end of the latch pusher 44 is installed in a straight line with the latch bolt 11 that enters the latch engaging hole 42, so that when the latch pusher 44 is pressed, the latch pusher 44 is connected to the latch bolt 11. ) is pushed out of the latch locking hole (42), and the position where the latch locking hole (42) is formed is formed at a position in the form of a concave groove (47) toward the latch pusher (44), so that a puzzled child accidentally pushes the latch pusher (44). Even when pressing ), even if the latch bolt (11) is pushed out just a little, it moves out of the latch locking hole (42) and the door opens.

In this way, when the latch pusher 44 is pressed and the door is opened, the switch 46 installed on the latch pusher 44 contacts the end of the latch bolt 11, and the electric signal is turned on. It is output through a buzzer or voice generator installed in the management office such as the office of a kindergarten or the teacher's room of an elementary school, so that the teacher in the management office can run to the relevant classroom to comfort and protect the child.

Then, as the latch pusher 44 is pressed as above, the rear of the latch pusher 44 pushes the latch bolt 11, which has entered the inside of the strike box 41 through the latch locking hole 42, outward to open the door (1). ), the latch pusher (44) is still in the back of the latch groove (47) where the latch locking hole (42) is formed. However, as the door (1) is closed, the latch bolt (11) is inserted into the latch locking hole (42). When entering, the latch bolt 11 elastically installed on the latch bolt unit 10 pushes the latch pusher 44 outward.

At this time, the vertical surfaces of the elastic snap protrusions 45 protruding outward on both sides of the latch pusher 44 are caught on the inner surface of the strike box 41 where the pusher installation hole 43 is formed, so that the latch pusher 44 does not deviate to the outside. Next, the latch pusher 44 is in a state where it can be pressed flexibly.

1: Door 2: Side hole 3: Front and rear holes
4: Shaft insertion hole 5: Screw passing hole 6: Door frame
10: Latch bolt unit 11: Latch bolt 12: Mounting flange
13: Latch bolt body 14: Shaft hole 20: Inner handle unit
21: inner handle 22: lock button 23: inner cover
24: Screw hole 25: Latch installation part 26: Latch hole
30: Outer handle unit 31: Outer handle 32: Key hole
33: Shaft 34: Rotating rod 35: Outer cover
36: screw fastening part 40: strike unit 41: strike box
42: Latch locking hole 43: Pusher installation hole 44: Latch pusher
45: elastic snap protrusion 46: switch 47: latch groove

Claims (4)

The inner and outer handle units are installed facing each other on the inner and outer sides of the door, and the latch bolt at the tip appears as you turn the inner and outer handles included in the inner and outer handle units, and is locked and unlocked by the strike unit installed on the door frame. In a door lock consisting of a unit and a strike unit installed on the door frame at a position corresponding to the latch bolt and through which the latch bolt enters and exits;
A latch installation part is installed horizontally on one side of the inner cover included in the inner handle unit and installed on the inner side of the door, and the inner space of the inner cover and the latch installation part are formed to communicate with each other, and the inner cover communicates with each other at the tip of the latch installation part. A latch hole is formed into which the latch bolt at the tip of the latch bolt unit installed in the inner space of the latch installation portion appears;
The screw inserted into the screw hole formed in the inner cover passes through a pair of screw passing holes formed in the door, is fastened to the screw fastening part formed in the outer cover outside the door, and penetrates the shaft hole of the latch bolt unit. The shaft, which causes the latch bolt to emerge as the inner and outer handles are turned, passes through the shaft insertion hole formed in the door between the screw passage holes and is installed to be connected to the inner center of the inner and outer covers. A door lock that is easy to install. The method of claim 1, wherein the strike unit has a latch locking hole through which the latch bolt enters and exits in a latch bolt corresponding portion on one side of the strike box installed in the door frame, and a pusher installation hole is formed in the strike box on the opposite side of the latch locking hole, The rear of the latch pusher, which pushes out the latch bolt inserted into the latch locking hole, is installed in the pusher installation hole, and on both sides of the latch pusher, tooth-shaped elastic snap protrusions forming inclined surfaces on the outer surfaces are elastically formed. A door lock that is easy to install. The method of claim 2, wherein the latch pusher includes a switch that is turned on and sounds a buzzer or sends a voice signal when the latch pusher is pushed and the rear of the latch pusher pushes the latch bolt. A door lock that is easy to install. The door lock according to claim 2, wherein the latch engaging hole is formed in a latch groove shape at a predetermined depth from the rear end line of the strike box toward the pusher installation hole.