KR102339901B1 - Dead Bolt Door Lock - Google Patents

Abstract

The present invention relates to a deadbolt door lock, wherein a micro-switch for checking the locked and closed state of a door during the operation of a solenoid part can be prevented from being damaged by hitting and from malfunctioning due to a residual magnetic force, comprising: a housing; a cover plate; a solenoid part; a PCB; an operating piece; a deadbolt; a spring; and a switching part including a first and a second micro-switch, an operating body for operating the same and a sub-PCB. Provided is a deadbolt door lock, wherein the first and the second micro-switch are switched during the operation of the solenoid part to transmit a signal during the closing and locking of a door and to prevent the first and the second micro-switch from being damaged by a shock through a spacer, a connection shaft of the operating body constituting the switching part is formed with a length to prevent a shaft of the solenoid part and a plunger from being in contact with each other, thereby enabling smooth functioning even with low power applied thereto without preventing the formation of a magnetic force and forming rapid responsiveness without delay during conversion from a closed state to an open state to enable the door to be opened and closed swiftly.

Description

Dead Bolt Door Lock

The present invention relates to a dead bolt type door lock for preventing malfunction due to residual magnetic force while preventing a micro switch for checking the lock and closed state of a door during operation of a solenoid unit from being damaged by a blow.

In general, a door lock device is installed on the door of a place such as a house, apartment, or office to prevent unauthorized outsiders from entering the building.

Most of these door lock devices are electronic or digital door locks that automatically lock/unlock the door by an electric signal to control the occupants for the purpose of crime prevention and security.

However, the conventional digital door lock is configured so that there is no need for a separate lock operation as the door is automatically locked when a predetermined time elapses after opening the door, but it is automatically locked by the elapsed time regardless of door closing As the re-locking operation of the ruler operates, a malfunction occurs in which the locker protrudes even when the door is open. If this is not done, there is a problem in security because it is possible to go out without the door locked correctly.

In order to solve the above problems, as in Korean Patent Registration No. 10-0747983 (hereinafter referred to as 'Patent Document 1'), a magnetic sensor for detecting whether the door is opened or closed and a limit switch for detecting whether the dead bolt is locked are provided. The dead bolt locks when the door is closed correctly to maximize crime prevention and security, and the simple structure saves the manufacturing cost due to the reduction of parts. An electronic deadbolt door lock has been proposed for the purpose of improving the reliability of the product, such as shortening the working time due to easy installation.

Patent Document 1 discloses a solenoid equipped with an electromagnet generating magnetic force by an electrical signal; an operation shaft interpolated into the solenoid and slide-transferred by magnetic force generated according to an electrical signal; The actuating piece that is rotatably hinged and connected to the actuating shaft and the connecting pin, the actuating piece spring that returns the actuating piece rotated by the actuating shaft to its original position when the power is turned off, is moved back and forth by the rotating actuating piece to lock/lock the door A main body having a dead bolt to unlock, a dead bolt spring for returning the locked dead bolt to its original position when the power is turned off, and a limit switch for detecting whether the dead bolt protrudes by detecting the rotated actuating piece in the housing to be interlocked; A dead bolt transport hole is provided together with a magnetic sensor, and a door frame plate that seals the open body on one side and fixes it to a door frame (not shown), a permanent magnet and a dead bolt locking hole are provided to be mounted and fixed to the door (not shown) It consists of a door plate.

In addition, a residual magnetic force removing body made of a non-magnetic material is installed at either the rear end of the operation shaft or the bottom of the receiving groove of the solenoid in contact with the rear end of the operation shaft.

In addition, Korean Patent Registration No. 10-0907047 (hereinafter referred to as 'Patent Document 2') discloses a solenoid equipped with an electromagnet; an operation shaft which is inserted into the center of the electromagnet and slide-transferred by magnetic force generated from the electromagnet according to an electrical signal; The actuating piece rotated by the actuating shaft while being hinged to one side, the actuating piece spring returning the actuating piece rotated by the actuating shaft to its original position when the power is turned off, and the deadlocking/unlocking door locking/unlocking while being transferred back and forth by the rotating actuating piece a main body having bolts, a dead bolt spring for returning the locked dead bolts to their original positions when the power is turned off, and a limit switch for detecting whether the dead bolts protrude by detecting the rotated actuating pieces are installed in the housing to be interlocked; In a typical electronic deadbolt door lock comprising a door frame plate having a dead bolt transfer hole together with a magnetic sensor and sealing the body with one open side to the door frame, the dead bolt communicating inward from the open side of the body At the same time as the bolt insertion groove and the actuating piece pivoting hole are formed, one end of the solenoid is screwed to the lower end of the housing of the main body so as to communicate with the actuating piece pivoting hole. As soon as the switch insertion hole is formed, the limit switch connected to the PCB is installed and fixed so that the switch part faces downward to correspond to the central part of the actuating piece that rotates inside it, and the actuating piece rotates while interlocking with the pressing action of the actuating shaft. A solenoid actuating part is provided on the outer peripheral surface of the lower end of the actuating shaft to protrude the actuating piece by rotating the actuating piece at the same time as it protrudes into the hole. A stopper is formed integrally with one end of the solenoid and one end of the operating shaft to remove residual magnetic force due to power-off by separating the distance.

Accordingly, Patent Documents 1 and 2 include a configuration for removing current magnetic force.

(Patent Document 1) KR10-0747983 B1 Deadbolt Electromagnet Door Lock

(Patent Document 2) KR10-0907047 B1 Electronic Deadbolt Door Lock

On the other hand, in the case of a normal door lock, the control panel for applying power to the door is not always located close to the door.

That is, when the distance between the control panel and the door increases, the length of the electric wire becomes longer, and a low current is supplied by the resistance value.

In addition, the magnetic force of the solenoid and the shaft is determined by the size of the magnetic force, that is, the magnetic force line. As in Patent Documents 1 and 2, when a material for removing residuals is included between the solenoid and the shaft, the magnetic force prevents the formation of the magnetic force line. becomes weak, and moreover, when a low current is applied as described above, the operation of the solenoid becomes difficult.

That is, when a residual remover is disposed between the solenoid and the shaft for residual removal as in Patent Documents 1 and 2, the magnetic force is weakened when a low current is applied, making it difficult to drive.

Moreover, heat is generated by the above-mentioned phenomenon, and such heat generation also causes a problem in that the failure rate of the solenoid is increased.

In addition, for the locked and closed state of the door, the micro switch is configured to operate when the operating piece is operated, and a magnetic sensor and a magnet are additionally installed to detect it when the door is in the closed position. During operation, the feeling of hitting is transmitted and operated by the operating piece, so it is often damaged at an early stage, and malfunctions frequently occur.

Moreover, in the case of the magnetic sensor, since it simply recognizes whether the door is in the closed state, there is also a problem in that the magnetic sensor does not actually recognize the locked state of the door.

The dead bolt type door lock according to the present invention for solving the above problems transmits a signal when the door is closed and locked by switching the first and second micro switches when the solenoid part is operated, as well as the first and second micro switches through the spacer. , It is an object to provide a dead bolt type door lock in which the 2 micro switches are prevented from being damaged by impact.

Another object of the present invention is to form the length of the connecting shaft of the actuator constituting the switching unit to a length where the shaft and the plunger of the solenoid do not contact, so that the applied power is smoothly operated even at low power without interfering with the formation of magnetic force. At the same time, an object of the present invention is to provide a deadbolt-type door lock that can open and close the door quickly by forming a quick response without delay when changing from a closed state to an open state.

According to the present invention, the first and second micro switches are switched when the solenoid part is operated to transmit a signal when the door is closed and locked, and the first and second micro switches can be prevented from being damaged by impact through the spacer. .

In addition, the length of the connecting shaft of the actuator constituting the switching unit is formed so that the shaft of the solenoid unit and the plunger do not come into contact with each other so that it does not interfere with the formation of magnetic force. This is a useful invention that can open and close the door quickly by forming a quick response without delay when changing to a state.

1 is an installation state diagram of a deadbolt-type door lock according to the present invention.
Figure 2 is a perspective view showing a dead bolt-type door lock according to the present invention.
Figure 3 is an exploded perspective view of Figure 2;
4 is an exploded perspective view of FIG. 3 from another angle;

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

The present invention is installed in various doors, in particular, is inserted into the frame (F) of the door (D) made of tempered glass as shown in FIG. can be

The present invention provides a solenoid unit 30 driven by magnetic force within the housing 10 and the cover plate 20, and a PCB 40 for controlling the solenoid unit 30 and the driving of the solenoid unit 30. The dead bolt 60, which is locked and unlocked of the door D by the actuating piece 50 and the actuating piece 50 rotated by the A switching unit 70 for transmitting presence or absence to the PCB 40 and the control panel C is included.

First, the housing 10 is formed in a rectangular shape as shown in FIGS. 2 to 4 , a receiving groove 11 is formed on one side, and a dead bolt receiving groove 12 is adjacent to the receiving groove 11 . is formed.

The accommodating groove 11 and the dead bolt accommodating groove 12 are connected to each other, and the lower surface has an open structure.

Next, the cover plate 20 is coupled to the open surface of the housing 10 and is configured to block one side of the housing 10 , and the dead bolt receiving groove 12 of the housing 10 . A dead bolt hole 22 is formed at the formed position.

Next, the solenoid unit 30 is configured to be coupled to the receiving groove 11 constituting the housing 10 and includes a shaft receiving groove 31a on the inside, and the solenoid 31 and the solenoid 31 in which magnetic force is formed. ) formed at one end of the shaft 32 and the solenoid 31 coupled to the receiving groove 31a of the shaft 32 for sliding motion by magnetic force and the solenoid 31 coupled to the shaft 32, one end of the shaft 32 and a plunger 33 disposed to face and having a pin moving hole 33a through which the pin 34 can move.

Next, the PCB 40 is configured to include a function of controlling power to the solenoid 30 as a configuration for controlling the solenoid 30 .

Next, the actuating piece 50 forms a shaft contact portion 51 in contact with the pin 34 constituting the solenoid unit 30, and allows the shaft 32 constituting the solenoid unit 30 to rotate. A rotation hinge shaft 52 is formed, and it is configured to include a dead bolt operation bar 53 on the other side.

Next, the dead bolt 60 is driven in a linear direction by the rotation of the actuating piece 50 and forms a contact surface 61 in contact with the dead bolt actuating bar 53 of the actuating piece 50 on one side. .

The dead bolt 60 is accommodated in the dead bolt receiving groove 12 of the housing 10 and protrudes to the outside through the dead bolt hole 22 of the cover plate 20 to set the lock of the door (D). is the composition

In addition, the outer peripheral surface of the dead bolt 60 is configured with a spring (S) is hooked by the locking jaw (62).

On the other hand, in the present invention, the switching unit 70 for transmitting the operation of the dead bolt 60 according to the operation of the solenoid unit 30 and the closed state of the door (d) to the PCB 40 and the control bar (C). ) is formed.

The switching unit 70 is configured to transmit a signal to the outside by coupling to the end of the solenoid 31 constituting the solenoid unit 30, specifically, the opposite end where the actuating piece 50 is formed. The sub PCB 71 including 1 and 2 coupling holes 71a and 71b is configured.

In addition, a coupling bolt 72 for fixed coupling to the solenoid 31 is formed through the first coupling hole 71a of the sub PCB 71, and a door ( A first micro switch 73 that operates to transmit the locked state of D) and a second micro switch 74 that operates to transmit the locked state of the door D to the control panel C are configured.

In addition, the first and second micro switches ( An actuator 75 constituted by a pressing plate 75b for actuating 73 and 74 is constituted.

Here, the length of the connecting shaft 75a of the actuator 75 constituting the switching unit 70 is determined by the first and second micro switches when the pressure plate 75b of the actuator 75 is operated when the solenoid unit 30 is operated. When in contact with (73, 74), it is preferable to form the shaft 31 and the plunger 33 of the solenoid part 30 to a length in which they do not come into contact.

In addition, in the switching unit 70 , when the actuator 75 operates, the pressure plate 75b strikes the first and second micro switches 73 and 74 when the first and second micro switches 73 and 74 come into contact with each other. A spacer 76 may be further included in the coupling bolt 72 so as not to be transferred.

The effect of the dead bolt type door lock according to the present invention having the above configuration will be described as follows.

First, in the dead bolt type door lock 100 according to the present invention, as shown in FIGS. 3 to 4 , when the door D is normally opened, the dead bolt 60 is inserted into the dead bolt receiving groove 12 of the housing 10 . will maintain the status quo.

Then, when the door D is locked, power is applied to the solenoid unit 30 by the PCB 40 in the closed state of the door D to operate the shaft 32 .

Then, the pin 34 of the solenoid part 40 is pushed while in contact with the shaft contact part 51 of the actuating piece 50, and the actuating piece 50 pressed in this way has the rotary hinge shaft 52 as the central axis. By rotating, the dead bolt operation bar 53 presses the contact surface 61 of the dead bolt 60 .

Accordingly, the dead bolt 60 maintains a state protruding to the outside through the dead bolt hole 22 formed in the cover plate 20 .

On the other hand, as described above, when the shaft 32 of the solenoid unit 30 is operated, the actuator 75 constituting the switching unit 70 connected to the shaft 32 is also moved along with the operation of the dead bolt 60 . As a result, the pressure plate 75b of the actuator 75 contacts the first and second micro switches 73 and 74 to perform switching.

Accordingly, the first and second micro switches 73 and 74 are operated.

Here, the first micro switch 73 transmits the closed state of the door D and the locked state due to the protrusion of the dead bolt 60 to the PCB 40 through the sub-PCB 71 simultaneously with operation. .

Then, the PCB 40 controls the solenoid unit 30 to apply power to the solenoid unit 30 to maintain the closed state with minimal power.

This is because the residual magnetic force exists after the magnetic force is formed in the solenoid 31 and the shaft 32 when power is applied to the solenoid unit 30, so that the solenoid unit 30 operates the dead bolt 60 even if low power is supplied. Because you can keep it.

Here, the connecting shaft 75a of the actuator 75 constituting the switching unit 70 is connected to the first and second micro switches 73 when the pressure plate 75b of the actuator 75 is operated when the solenoid unit 30 is operated. , 74), the shaft 32 and the plunger 33 are formed in a length that does not abut, so that the solenoid part 30 can operate even when the current is low power, and the current remains in a short state The solenoid 31 and the shaft 32 are attached by magnetic force to form a quick responsiveness without delay when switching from the closed state to the open state, which occurs to enable quick opening and closing of the door.

Looking at this, in a conventional door lock, since the control panel (C) for supplying power is not installed in a position close to the door (D), power is supplied from the control panel (C) to the PCB (40) using a wire (L). As the length of the electric wire (L) increases, the resistance value increases, so that a low current is frequently supplied.

Here, if the configuration for removing the residual formation of the magnetic force line is between the solenoid 31 and the shaft 32, the driving force is lowered due to the magnetic force line not being smoothly formed, so that the solenoid unit 30 cannot operate at low power. In addition, when there is no configuration for removing residuals, the solenoid 31 and the shaft 32 come into contact with each other and the residual magnetic force when the dead bolt 60 is driven by the elasticity of the spring S after the current is cut off. Because the shaft 32 does not fall from the solenoid 31, the responsiveness is slow when switching from the closed state to the open state, that is, a delay occurs, which causes inconvenience to the user, but the present invention provides the switching unit 70 By adjusting the length of the connecting shaft (75a) constituting the actuator (75) of the above problem can be solved.

In particular, even if the applied current is low power as described above, the operation of the solenoid unit 30 is performed smoothly, so even if the spring S having the same elastic force as that of the existing door lock is used, the operation can be performed smoothly without being affected by the residual magnetic force. there will be

In addition, the spring S formed on the outer circumferential surface of the dead bolt 60 maintains a compressed state between the locking jaw 62 and the cover plate 20 because the dead bolt 60 protrudes to the outside. .

On the other hand, the second micro switch 74 transmits the closed state of the door D and the locked state due to the protrusion of the dead bolt 60 to the control panel C through the sub PCB 71 at the same time as operation.

That is, in the present invention, when the solenoid unit 30 is operated, the first and second micro switches 73. 74 are physically switched to recognize the closed state of the door D as well as the operating state of the dead bolt 60. By sending a signal to the control panel (C), the door (D) is closed, but the dead bolt (60) is not in the locked state. can be prevented.

In particular, in the switching unit 70 in the present invention, the sub-PCB 71 is coupled to the solenoid unit 30 by using a coupling bolt 72. In the present invention, the actuator 75 of the switching unit 70 is When the pressure plate (75b) is in contact with the first and second micro switches (73, 74) during operation, the coupling bolt (72) has a spacer (76) so that no impact is transmitted to the first and second micro switches (73, 74). It is possible to prevent damage to the first and second micro switches 73 and 74 due to impact by further combining them.

On the other hand, when a signal for opening the door D is received after the door D is locked as described above, the current supplied from the control panel C to the solenoid unit 30 is cut off and the magnetic force is applied to the solenoid unit 30 . this is removed

Here, the residual magnetic force remains in the solenoid 31 and the shaft 32 of the solenoid unit 30, but the present invention relates to the connecting shaft ( 75a), the distance between the plunger 33 and the shaft 32 is adjusted so that the elastic force of the spring S acts larger than the force of the residual magnetic force.

Therefore, when the current is cut off, the linear motion of the dead bolt 60 and the rotational motion of the actuating piece 50 are made by the elastic force of the spring S, and the solenoid part by the operation of the actuating piece 50 The shaft 32 of (30) is to be made a linear motion.

D: Door F: Frame
10: housing
11: receiving groove 12: dead bolt receiving groove
20: cover plate
22: Deadbolt Hall
30: solenoid part
31: solenoid 31a: shaft receiving groove
32: shaft 33: plunger
40: PCB
50: operation piece
51: shaft contact 52: rotary hinge shaft 53: dead bolt operation bar
60: dead bolt
S: spring
70: switching unit
71: sub PCB 71a: first coupling hole 71b: second coupling hole
72: coupling bolt 73: first micro switch 74: second micro switch
75: actuator 75a: connecting shaft 75b: pressure plate
100: dead bolt door lock

Claims (3)

a housing including an accommodating groove and a dead bolt accommodating groove on the inside;
a cover plate coupled to cover the housing and including a deadbolt hole;
A solenoid disposed in the receiving groove of the housing and having a shaft receiving groove therein, a shaft movably coupled to the shaft receiving groove of the solenoid, a pin coupled to the shaft, and an end of the solenoid, but with one end of the shaft and a solenoid unit disposed to face and including a plunger having a pin moving hole through which the pin can be moved;
a PCB disposed within the housing;
an actuating piece operated by a pin constituting the solenoid part;
a dead bolt operated by the actuating piece;
a spring coupled to the dead bolt;
a sub-PCB that is coupled to an end opposite to which an operation piece is coupled among the solenoids constituting the solenoid unit and includes a first coupling hole and a second coupling hole inside;
a coupling bolt for coupling the sub PCB to the solenoid of the solenoid;
A first micro switch coupled to the sub-PCB and operating to transmit a signal to the PCB for driving the dead bolt and closing the door;
a second micro switch coupled to the sub-PCB and operating to transmit a signal to the control panel of the dead bolt driving and the door closing state;
A switching unit comprising a connecting shaft coupled to the opposite direction to which the actuating piece is coupled among the shafts constituting the solenoid unit and an actuator formed at an end of the connecting shaft to contact and switch the first and second micro switches when the solenoid unit is operated A deadbolt-type door lock that is characterized by including ;.
According to claim 1, wherein the length of the connecting shaft of the actuator constituting the switching unit is formed such that the shaft of the solenoid unit and the plunger do not come into contact when the pressure plate of the actuator contacts the first and second micro switches when the solenoid unit is operated. A deadbolt-type door lock that is characterized by
The method according to claim 1, wherein a spacer is further coupled to the coupling bolt so that an impact is not transmitted to the first and second micro switches when the pressure plate comes into contact with the first and second micro switches when the actuator operates. Deadbolt door lock.

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