KR940008702B1 - Door lock system for card key - Google Patents

Abstract

The door locking device using an IR photo sensor and a magnetic card with a opening hole, opens or closes the front door, simultaneously perform the functions of a interphone and an alarming device. The device comprises a card inserting section (4) for receiving a card key (101) having an inner strong magnetic material (102) and a plurality of holes (103), performing preliminary search function; card recognizing section (5) for performing secondary search function for operating micro switch (15) when the card key is corresponds to the material (102), third search function for operating the solenoid (6) according to the existence of the IR; solenoid (6) operated by an indoor open switch (32) and a card recognizing section (5).

Description

Door lock device for card key

1 is a perspective view showing an installation state for showing an embodiment of the present invention.

2 is a perspective view of the inner body of the present invention.

3 is a partially exploded perspective view of the present invention.

4 is a perspective view of the card recognition unit of the present invention.

5 is an exploded perspective view of the card recognition unit of the present invention.

6 is an exploded perspective view of the card insertion portion of the present invention.

7 is an exploded perspective view of the locking device of the present invention.

8 is a cross-sectional view of the installation state of the present invention.

9 is an installation state of the card recognition unit and the insertion portion of the present invention.

10 is a plan sectional view of the card insertion portion of the present invention.

Figure 11 (a) is a cross-sectional view before insertion of the card recognition unit of the present invention (b) is a cross-sectional view of the operating state after insertion of the card recognition unit of the present invention.

12 is a cross-sectional view of the installation state of the solenoid of the present invention.

Figure 13 is a cross-sectional view of the operating state of the solenoid of the present invention.

14 is a partial cross-sectional view of the front of the card key of the present invention.

Figure 15 (a) is an installation state of the locking device of the present invention (b) is an operating state of the locking device of the present invention.

* Explanation of symbols for main parts of the drawings

1: door lock 2: outer body

3: internal body 4: card insertion unit

5: card recognition unit 6: solenoid

7: rotating hole 8: locking device

11, 12: body 13, 14, 102: hole

15, 16: substrate 17, 18: device fixing hole

21: doorbell switch 22, 35: knob

23, 36: lock knob 32: indoor open switch

40: square axis 40 ': hole

41: insertion hole 42: hook

43: operating hole 44: roller

45: leaf spring 46: fixed plate

47: groove 48: protrusion

50: weak magnetic material 53: moving plate

54 through hole 55 guide part

56: magnet 57: magnet insertion hole

58, 73: spring 59: microswitch

61: fixed shaft 62: rotary roller

63: dismantling shaft 71: fixture

72: guide hole 74: lock hole

75: semi-circle shaft 76: spring fixing protrusion

77: protrusion 78: switch

80: upper lock 81: lower lock

82: locking mechanism 82 ': moving shaft

83: moving port 85: moving piece

86: groove 87: fixture

89: guide plate 91: connecting shaft

92,93: elastic spring 93: shaft

101: card key 102: ferromagnetic material

P: Infrared Optical Semiconductor Device

The present invention relates to a door lock device for a card key that opens and closes various front doors by using a card having a hole and a ferromagnetic material and an infrared light sensor, and at the same time having an interphone and an alarm function.

The door lock (Domestic Notice No. 83-1981) that opens and closes various front doors by using the card key allows the magnet arrangement of the card key to be changed arbitrarily, but the card key must be inserted at all times during use. There is concern and the card key is too big and thick, making it inconvenient to carry.

In addition, the domestic notification number 83-1981 uses two card keys at the time of dismantling, so that many programs can be made by changing the positions of the magnets and the poles of the magnets installed on the keys and door devices. It was inconvenient to use two keys.

In addition, the card type locker of Korean Publication No. 90-6922 encrypts a photocoupler operated by light and a card key formed with a hole for blocking the light or passing the hole according to the position of the hole. There were simple drawbacks such as that they could not be used in the city and could not be used for other purposes than the device.

In other words, there was a common defect that the card key was too large and the outer box had to be large by the card depth.

Accordingly, the present invention has been made to solve the above-mentioned drawbacks as described above. The object of the present invention is to provide a primary retrieval function to detect the size and thickness when the card key is inserted, and install a ferromagnetic material on the card to match the magnet. Only when the second search function to turn on the infrared optical semiconductor device 'on', and the third search function to match the password according to the presence or absence of infrared rays by the perforated card key and the infrared light sensor. It is to provide a door lock device to be released only.

In other words, it has a three-stage search function.

Another object of the present invention is to accurately inform the current state and operation state and the 'on / off' state of the power supply by the lamps installed inside and outside.

Still another object of the present invention is to insert a card other than a genuine card or give an alarm bell when a severe shock is given to destroy the door lock.

Another object of the present invention is to allow one-touch open in the room, it is impossible to insert another card.

Still another object of the present invention is to enable a call with a visitor, a doorbell, a freeze, etc. by intercom installation, and to be automatically replaced by a charging battery during a power outage so that it can be used even during a power outage.

In the present invention, the handle is installed inwards and outwards, and the upper and lower locks are installed in the center so that the locks are locked by the handles. And the card insertion part having the primary search function, and the card key is moved downward only when the card key coincides with the ferromagnetic material of the card key, the switch is turned on, and the second search is performed. The card recognition unit to search and release in the third order according to the presence or absence, and the disassembly shaft which is operated when the micro switch operated by the card recognition unit is turned on and disengages the lock or enables the dismantling by hand from the inside. And the solenoid having, a rotary sphere that is rotated to the elasticity of the spring during operation of the solenoid and released while turning on the micro switch, A locking device having an upper lock, which is activated by a rotary ball and released or locked by a locking knob, and a lower lock which is moved together with the movement of the guide plate by the moving hole, and the central part of which is connected to the locking knob and is broken when twisted. Configure the square axis to make it impossible to solve.

That is, there is a search function of three levels, so if this search function is matched, it is solved by the solenoid operation, and the alarm sound is made when a bad key is inserted.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.

1 to 3 are a perspective view and an exploded perspective view of the installation state for showing an embodiment of the present invention, the connection hole 27 is installed to the outside of the door 37 and the card insertion portion 4 is fixed to the upper side Is formed and the display lamp 26 to indicate that the power is' on 'to the front, the alarm lamp 28 that is' on' with the alarm sound when the bad card is inserted, and the door 37 is' After the door opening lamp 29 is formed, the doorbell switch 21, the interphone microphone 24, and the receiving speaker 25 are installed on the lower side, and the lock knob for locking the door 37 in the center. (23) and the outer body (2) having a handle 22 to the outside, and the hook 42 is inserted into the connection hole 27 on the outer body (2) is formed in both sides of the card key 101 It is connected to the outer body (2) and the card inserting portion (4) which enables the first search when inserted and facilitates the movement during insertion. A locking device 8 fixed to the door 37 with the lower lock 81 rotated with the rotation of the handle 22 and the upper lock 80 locked by the locking knob 23; and the door 37 ) Is installed inside the battery (35 ') and the AC adapter (36') is connected to the indoor open switch 32 and the alarm bell 31 and the display lamp 33 and the door open to release the upper lock (80) After the lamp 34 is installed, the disassembly shaft 63 for releasing the solenoid 6 upwards protrudes and constitutes an inner body 3 through which the handle 35 and the lock knob 36 protrude.

That is, the door 37 is provided with a groove lock device 8 is inserted into the outer body 2 to the outside and the inner body 3 to the inside.

5, 6, and 9 to 11 are exploded perspective views, perspective views, and sectional views of the card recognition unit and the card insertion unit according to the present invention. The hook is inserted into the connection hole 27 on the outer body 2 and fixed thereto. (42) on both sides and the insertion hole 41 is inserted into the card key 101 to the upper side and the operation hole 43 is formed at the lower side to be rotated when the card key 101 is inserted therein to facilitate movement. The roller 44 and the leaf spring 45 to elastically support the roller 44 to always seal the insertion port 41, and the projections 48 on both sides of the leaf spring 45 to support the outer side of the leaf spring 45 The card insertion part 4 which consists of the fixing plate 46 which has the groove | channel 47 fixed to it is comprised.

In addition, the card insertion unit 4 is installed on the lower side and the card key 101 is inserted, the ferromagnetic material 102 and the magnet 56 of the card key 101 is matched with the operation of the micro switch 59 infrared ray After the optical semiconductor device (P) is matched by the 'on' and the solenoid 6 is operated to form a card recognition unit 5 to be released, but has a plurality of holes 13 on the inside and the interphone microphone 24 to one side A body 11 having a microphone fixing portion 11 'to which is fixed), a shaft fixed to the body 11, and a conventional infrared optical semiconductor element P is inserted and fixed, and the hole 13 of the body 11 is fixed. A substrate 15 having a plurality of device fixing holes 17 coinciding with the cover, a cover 19 fixed to the body 11 from the outside of the substrate 15, and fixed to face the body 11. And a spring groove 58 'and a micro switch 59 having a plurality of holes 14 coinciding with the holes 13 and into which one of the springs 58 are inserted. After the position groove 59 'is formed, it has an insertion hole 57 through which the magnet 56 can be inserted at a predetermined distance up and down, and a through hole 54 outside thereof, and a spring 58 downward. A body 12 provided with a movable plate 53 having a guide portion 55 supported thereon and a weak magnetic body 50 having a relatively weak force for pulling the magnet 56 to the outside thereof, and of the body 12 A substrate 16 having a plurality of element fixing holes 18 coinciding with the holes 14 from the outside, and a fixing screw 52 to one side of the substrate 16 is provided with a body 11, 12 and a substrate 15. It consists of a cover 51 having a set screw 52 that passes through the 16 and is screwed by the nut N in the cover 19.

8 and 13 and 12 are cross-sectional views of the installation state and the installation and operation state of the solenoid of the present invention, and the tip of the rotary hole 7 after being fixed to the lock knob 36 of the inner body 3. The upper lock 80 of the locking device 8 is axially fixed to the fixture 71 and has the respective holes 40 'at regular intervals and the tip is axially connected to the locking knob 23 of the outer body 2. Square shaft (40) for operating the, and the inner shaft (3) formed on the inner upper end of the disassembly shaft (63) protruding upward and the fixed shaft (61) protrudes to the upper lock of the locking device (8) Solenoid (6) for locking and unlocking the 80 and the rotary roller is provided on both sides of the fixed shaft (61) of the solenoid (6) to help the movement of the fixed shaft (61) moved during operation of the solenoid (6) 62 and the locking hole 74 into which the fixed shaft 61 of the solenoid 6 is fitted, respectively, and formed by elasticity when the solenoid 6 is released. A spring fixing protrusion 76 is fixed to the spring 73 to be rotated and protrudes downward to have a protrusion 77 to turn on / off the switch 78 when rotating and has a guide hole 72 therein. The semi-circular shaft 75 is inserted into the rotary sphere 7 and the guide hole 72 of the rotary sphere 7 and rotated by being installed in the handles 22 and 35 to rotate the lower lock 81. Let's do it.

7 and 15 (a) (b) is an exploded perspective view of the locking device of the present invention, the installation state and the operation state diagram of the upper lock 80 and one side of the upper and lower sides of the body 84 installed inside the door 37 After installing the lock holes 80 'and 81' into which the lower lock 81 is fitted, it has a long hole 85 'to be fitted to the upper protrusion shaft 96, and a moving shaft 82 on the upper end of the movable piece 85. ') Is inserted into the upper lock (80) having a groove (86) for controlling movement, and a moving shaft (82') fitted into the groove (86) of the upper lock (80) is formed, one side is fitted and the opposite side A spring 88 fixed to the protrusion 99 is connected to the locking sphere 82 coupled to the square shaft 40, and coupled with the locking aperture 82 to coincide with the semicircular hole 100. Semi-circular shaft (75 ') is passed through the semi-circular hole (83') and the movement port 83 for moving the guide plate 89 by rotation, and the projection for controlling further rotation at one side of the movement hole (83) 87 ') and the movement of the guide plate 89 A fastener 87 supported by the controlling shaft 95 'to be coupled with the fixed shaft 95 fitted to the shaft 98, and a long hole 90 supported by the fastener 87 and to which the protrusion 97 is fitted. The guide plate 89 is moved by the moving port 83 and moves the lower lock 81, and the guide plate 89 is axially fixed together with the elastic spring 92, and the opposite side is the body 84. It is integral with the shaft 93 is fixed to the connecting shaft 91, the locking groove 81 'of the body 84 and the shaft 93 is fixed to the guide plate 89 together with the elastic spring 94 It constitutes a locking device 8 consisting of a lower lock 81 to be moved.

In addition, the present invention inserts a ferromagnetic material 102 to match the magnet insertion hole 57 of the card recognition unit 5 as shown in FIG. A card key 101 having a structure is constructed.

In the present invention having such a configuration, the ferromagnetic material 102 is inserted into one side of the card key 101, and the thickness of the card key 101 is 1 mm or less.

When the handles 22 and 35 are rotated, the movable port 83 is rotated counterclockwise in the semicircle holes 100 and 83 'of the locking device 8 by the semicircle shaft 75 and the guide plate 89 is rotated. ), The elastic spring 92 of the connecting shaft 91 is lifted and the guide plate 89 is moved, and at the same time, the shaft 93 is moved, the lower lock 81 is moved, and the handles 22 and 35 are moved. When placed, the guide plate 89 is returned to its original shape by the elastic force of the elastic springs 92 and 94, and the lower lock 81 protrudes, so that it is used in the same manner as a conventional door lock.

When the semicircular shaft 75 is rotated in the clockwise direction, the fixing tool 87 is rotated to the right by the projection 87 'and the guide plate 89 is moved to move the lock 1.

In addition, when the door 37 is out, or when the door 37 is locked, the inner and outer sides of the locking knobs 23 and 36 are rotated, and the square shaft 40 connected thereto is rotated to lock the locking port 82 of the locking device 8. Locking mechanism 82 coupled to the groove 86 of the movable plate 85 with the rotation of the locking mechanism 82 by rotating and locking to the upper lock 80 as shown in Figs. 15 (a) to (b). When the moving shaft 82 'of the) pushes the moving plate 85 to the left axis, the axial shaft 96 is guided to the coupled long hole 85' and is moved to the left side and protrudes to the outside of the locking device 8 to lock.

At this time, the rotary ball 7 is fixed to the square shaft 40 in the counterclockwise direction with the rotation of the square shaft 40 in a state in which the fixed shaft 61 of the solenoid 6 is circumscribed as shown in FIG. After being rotated, as shown in FIG. 12, the fixed shaft 61 is inserted into the locking hole 74 of the rotary hole 7 to help the locking of the upper lock 80 so that the unlocking is impossible.

As described above, the upper lock 80 is locked, and the display lamps 26 and 33 light up while the door look 1 is in use to inform the 'on' state of the power supply.

In addition, the card key 101 is used to release the card key 101 from the outside, or to release the shaft key 63 from the inside, and to use the interior open switch 32 or the disassembly shaft 63 at the time of power failure or failure. ) Is inserted into the insertion hole 41 of the card inserting portion 4 to search for the primary key by the width and thickness of the insertion hole 41. If the insertion is continued, the insertion hole 41 is opened by the roller 45. If the card key 101 is easily inserted and continues to be inserted, the card key 101 stops at the guide part 55 of the movable plate 53 located on the lower side of the card recognition part 5.

At this time, as shown in (a) and (b) of FIG. 11, the card key 101 is inserted and the magnet 56 inserted into the magnet insertion hole 57 on one side is moved after the first search is completed and moved downward. Since it is fixed to the weak magnetic body 50 through the through hole 54 of 53, even if the card key 101 is pressed, it can be moved downward by the magnet 56 by touching the guide portion 55 of the moving plate 53. There will be no.

However, when the positions of the ferromagnetic material 102 of the card key 101 and the magnet 56 inserted into the magnet insertion hole 57 coincide with each other, the magnet 56 is moved toward the ferromagnetic material 102 and separated from the through hole 54. Therefore, the secondary search is completed and the insertion of the card key 101 is possible. If the insert is continued, the movable plate 53 moves downward with the guide unit 55, and the micro switch 59 on the lower side is 'on'. .

At this time, the micro switch 59 applies the power to the infrared optical semiconductor element P installed in the substrate 15 to generate infrared rays. After the infrared rays pass through the holes 13 of the body 11, Passing through the hole 103 and passing through the hole 14 of the body 12, the card key 101 by operating the solenoid 6 in accordance with the presence or absence of infrared light through the infrared sensing element installed in the substrate 16. If the hole 102 and the presence or absence of infrared rays pass through are the same as the memory, the solenoid 6 is turned on, and if it is not matched, the solenoid 6 is not operated by cutting off the power supply.

In addition, when the solenoid (6) is 'on', a light melody sound is generated and the door opening lamp (29) is 'on' and is released and the password is matched depending on whether the infrared rays pass through or not. When the solenoid 6 is applied to the solenoid 6 as shown in FIG. 12, the fixed shaft 61 is inserted into the locking hole 74 and the solenoid 6 is 'on' while the upper lock 80 is locked. 61) and pull it up.

At this time, the fixed shaft 61 is guided to the rotation roller 62 and when the rotary hole 7 is rotated counterclockwise as shown in FIG. 13 by the elasticity of the spring 73 when separated from the locking hole 74 When the lower protrusion 77 turns on the switch 78, the door opening lamp 29 turns on, and a light melody sounds through the receiving speaker 25 and the square with the rotation of the rotary hole 7. When the shaft 40 rotates the locking port 82 of the locking device 8 to the right, the moving shaft 82 'of the upper end is rotated in the groove 86 of the moving plate 85 and the upper lock 80 Will be released automatically.

Here, the hole 103 of the card key 101 can be modified in a large number depending on whether or not the infrared light passes through the holes 13 and 14 in the card recognition unit 5, and the magnet insertion hole ( 57 is recognized according to the insertion of the magnet 56 above and below, and after the upper lock 80 is locked by the locking mechanism 82, the moving shaft 82 'is inserted into the groove 86 to move to the left axis. Will be prevented.

In addition, when releasing from the inside, when the indoor open switch 32 is pressed, the power supply of the battery 35 'is applied to the solenoid 6 so that the fixed shaft 61 is separated from the locking hole 74 of the rotary hole 7. If the dismantling shaft 63 protruding onto the inner body 3 is pulled upward when the dismantling shaft 63 cannot be released due to a power failure or failure, the fixed shaft 61 is removed from the locking hole 74 of the rotary hole 7. As the rotating sphere 7 is rotated to release.

That is, since the thickness and the width are determined by the card insertion unit 4 when the card key 101 is inserted, the primary search is possible, and the movement of the card key 101 is facilitated by the rotation of the roller 44.

In addition, only when the magnet 56 inserted into the magnet insertion hole 57 and the ferromagnetic material 102 coincide, the card key 101 is moved downward to operate the micro switch 59 to have a secondary search function. Infrared optical semiconductor device (P) is emitted by the micro switch 59 and the card recognition unit 5 to induce various passwords and accurate operation, such as blocking or passing the infrared light with the card key 101 3 When the difference search function is matched, the solenoid 6 is operated so that a light melody sounds and the sound is released.

When the card key 101 is removed, the movable plate 53 is returned to its original state due to the elasticity of the spring 58.

On the other hand, when a severe shock is applied to insert a card other than the genuine card or to destroy the door lock 1 through the insertion hole 41 of the card inserting portion 4, the alarm lamp 28 becomes large while the alarm bell 31 is inside. ) Will ring to announce the intrusion of outsiders.

In addition, when the external body 2 and the indoor intercom 37 'are connected, when the doorbell switch 21 is pressed, the intercom 37' is held and the visitor is identified as the receiving speaker 25 and the interphone microphone 24. It is possible to use the interphone (37 ') and the battery (35') by connecting and when the identity of the outsider is confirmed by pressing the button 38 to release the door 37 does not need to go.

In addition, the battery 35 'has a charging circuit inserted therein so that the battery 35' can be used during a power outage and checks the 'on / off' state of the power supply by the display lamp 26 and the door 37 by the door opening lamp 29. Open oil, nothing can be checked conveniently.

If the power supply is cut off when the door lock 1 is locked, the alarm sound does not sound even if the card is inserted into the inserting part 4 so as to insert a bad card or other foreign object or give a shock to destroy the door lock 1. .

However, once locked, the fixed shaft 61 of the solenoid 6 can be separated from the rotary ball 7 so that the rotary ball 7 can be rotated. When destroying the square shaft 40 is twisted hole (40 ') part is made because the break is made here, it becomes impossible to solve more.

In the present invention as described above, the body (2) (3) installed on the inside, the outside and the locking device (8) in the center can be used for convenience, stability and robustness in the front door of various buildings, doorbell and interphone Each lamp has the same function, and the effect of eliminating the presence / absence of the door lock, the door open state and the alarm function by each lamp.

In addition, the present invention is capable of the first search by the card insertion unit that determines the thickness and width of the card key when inserted, and if the ferromagnetic material and the magnet match after insertion of the card key, the magnet is moved to dismantle the switch. Since the card key can be moved downward, the second search is completed by turning on the micro switch.After the second search, the infrared optical semiconductor element is emitted, and the infrared sensor and the hole of the card key allow the infrared light to pass through. It is possible to search the car and provide the card key which can diversify the password by freely adjusting the number of hole installation of the card key, the number of infrared rays passing through, and the number of nothing. Safety is provided.

In addition, the present invention can be used by the charger at the time of power failure, and if a bad method or the door lock is broken, the alarm sounds and if you break the power supply to the door lock and then destroy the hole part of the square shaft is not possible to solve the various safety. It is provided.

Therefore, the present invention has a three-stage retrieval function, which means that the insertion of the card itself is blocked in the middle of any use and never opens even when inserted, and it can be used for various purposes without being disturbed by the environment. The effect is provided.

Claims (7)

In the door lock to release the door 37 by inserting the card key, a plurality of holes 103 are formed, the card key 101 is embedded with a ferromagnetic material 102 is inserted and fixed to the upper side of the outer body (2) The card insertion unit 4 having the primary search function and the card insertion unit 4 are installed below the card insertion unit 4, and the card key 101 is provided only when the ferromagnetic material 102 coincides after the card key 101 is inserted. Perform the secondary search function to operate the micro switch 59 by moving downward, and perform the third search function depending on the presence or absence of infrared rays passing through the hole 103 of the card key 101 after the secondary search function is performed. The card recognition unit 5 and the card recognition unit 5 to be released by operating the solenoid 6 when the search function is matched by performing the search function, or the indoor open switch 32 and the disassembly shaft 63. Solenoid 6 which is operated by pressing), and the square shaft 40 at the lower side of the solenoid 6 A semi-circular shaft (75) is installed to pass through and rotated by the elasticity of the spring (73) and the rotary hole (7) for operating the locking device (8) while 'on' the switch 78, and inside the door 37 Locking device (8) is installed and rotated by the rotation of the rotary hole (7) and having an upper lock (80) which is axially connected to the locking knob (23) and 36, and having a lower lock (81) downward; , The shaft 40 is fixed to the lock knob 36 of the inner body 3 and is connected to the lock knob 23 of the outer body 2 so as to operate the upper lock 80 of the locking device 8. Door lock device for a card key characterized in that it comprises a). The ferromagnetic material (102) of claim 1, wherein the card key (101) has a plurality of holes (102) perforated and positioned at the same position as the magnet (56) in the magnet insertion hole (57) of the card insertion portion (5). Door lock device for the card key built in. The card inserting portion (4) according to claim 1, wherein the card inserting portion (4) has a roller (44) inserted into the hook (43) on both sides, and a leaf spring (45) for elastically supporting the roller (44) to block the insertion hole (41). And a fixing plate 46 having grooves 47 fixed to both side projections 48 on the outside of the leaf spring. The card recognition unit (5) according to claim 1, wherein the card recognition unit (5) includes a plurality of holes (13) (12) and element fixing holes (17) (18) facing the bodies (11) (12) and the substrates (15) (16). The presence or absence of infrared rays is determined according to the hole 103 of the card key 101, and the magnet 46 is inserted into the magnet insertion hole 57 on one side, and the through-hole 54 and the spring are downward from the outside. A moving plate 53 having a guide portion 55 supported by 58, a ferromagnetic material 102 for pulling a magnet 56 from the outside of the moving plate 53, and a lower side of the moving plate 53. A door lock device for a card key which is operated by a card key 101 and constitutes a micro switch 59 for emitting infrared optical semiconductor elements (P). According to claim 1, the rotary hole (7) is a guide hole (72) through which the square shaft (40) is axially connected to the center and the semi-circular shaft (75) through the outside, and the locking hole (74) and the lower side to the outside. The door lock device for a card key having a projection (77) for operating the switch 78, and configured with a spring (73) to be positioned and rotated between the locking hole (74) when released by the elastic force. The locking device (8) according to claim 1, wherein the locking device (8) has a locking tool (82) having a moving shaft (82 ') to which the square shaft (40) is connected to move the upper lock (80). And a moving tool 83 which is installed integrally with the locking tool 82 and moves with a semi-circular hole 83 'through which the semi-circle shaft 75 passes and moves the guide plate 89 for moving the lower lock 81. And a fixture 87 inserted into the shaft 98 at one side of the movable tool 83 to prevent movement of the protrusion 87 'supporting the movable tool 83 and the guide plate 89. Door lock device for card keys. According to claim 1, the square shaft 40 is axially connected to the locking knobs 23 and 36, the rotary hole 7 and the locking port 82, and the holes at regular intervals in the front portion of the locking device (8). The door lock device for the card key which comprised 40 ').