KR200261715Y1 - Improved structure for electric lock - Google Patents

Abstract

The improved construction of the electric locks disclosed herein provides only one DC power source formed of 4 3A type battery units, instead of using two coils and a large AC power supply with the inconvenient conductor placement in operating the lock. Employing an electromagnetic coil, it is possible to generate an amplified drive torque from a DC power supply in which the technical arrangement of the mutual position between the driven rod and the extending part of the working rod is minimized. The function of the key is also controlled by a coded chip attached to it to identify the visitor.

Description

Improved structure for electric lock

The present invention is directed to an improved structure of an electric lock that can be operated as a DC instead of an AC and controlled by a coded chip.

Locks are essential to the protection of personal property, and therefore many types of locks have been on the market. Among these, mechanically operated locks such as cylinder locks and modern electrically operated locks are the most widespread types.

1 is a plan view of a conventional electrically operated lock, typically installed over a door. When the door is closed and locked, the tongue piece 11 protrudes, and the clasp 12 located at the center thereof has a circular detent washer provided at the center of the secondary lock case facing the main lock case. 13), so the clasp 12 is captured. When opening the lock, the latch 12 is released by pressing the push button 14 to retract into the main lock case, so that the door can be opened.

A more detailed configuration of a conventional electric lock is shown in FIG. As shown in FIG. 2, two electromagnetic coils 15, 16, action rods 17, detent arms 18, and tongue actuation mechanism 3 are provided in the main lock case. The acting rod 17 is hinged to the axis 171 and placed in front of the electromagnetic coils 15, 16 so that it is attracted to move horizontally by the coils 15, 16 when current is applied to the coils 15, 16. . The detent arm 18 disposed approximately perpendicular to the actuation lever 17 is hinged to the axis 181 and maintains the front end of the actuation lever 17 with jaws formed in its front terminal, while the shaft Its hinged end at 181 is formed in a concave gap 182 to hold one side of the inverted U-shaped frame 31 of the tongue actuation mechanism 3.

The tongue actuation mechanism 3 consists of an inverted U-shaped frame 31, a clasp 12, a tongue part 11, a driven member 32, and a connecting rod 33. The inverted U-shaped frame 31 is formed in the shape of a narrow groove so that the clasp 12 can be dug back and forth. The rear part of the clasp 12 is spirally surrounded by a coil spring 34 and one end thereof is fixed to the inside of the rear leg of the inverted U-shaped frame 31. The front leg of the inverted U-shaped frame 31 stands in front of the first upright member 321 of the driven member 32. The second upright member 322 is positioned behind the first upright member 321 at a suitable distance. The connecting rod 33 digs through two upright members 321 and 322 and is provided with a coil spring 331 around its rear portion.

To understand the principle of operation of the lock, reference is made to FIG. 3. When the lock 12 is held by the detent washer 13 in the sub lock case and the lock is locked, the inverted U-shaped frame 31 is moved backward by the restoring force of the elongated spring 34. Demonstrate the pull power. When the lock is released, non-magnetic force is applied to the electromagnetic coils 15 and 16 to attract the action rod 17 to move horizontally, and the detent arm 18 is released to rotate counterclockwise. At this moment, the inverted U-shaped frame 31 retreats back together with the upright member 321, the driven member 32, and the tongue portion 11, thus completing the loosening operation. In the unlocked state, the spring 331 is compressed to store energy therein by the retracted tongue portion actuation mechanism 3, preparing for the next locking action.

However, the conventional electric lock configured as described above has the following obvious disadvantages.

1. Because two electromagnetic coils must be installed close to the axis of the working rod for operation, a fairly strong current is required to attract the working rod to a large torque.

2. To provide such a large current, an AC power source is needed instead of DC, which requires the installation of a large and long conductor 36 drawn from the door frame 38 to the power distribution box 37 (see FIG. 4). ). In this example, the appearance of the door frame 38 is compromised and the labor and material costs are increased by such additional equipment. In addition, peeling off the damaged conductor 36 may possibly lead to an accident.

3. It's a nuisance to carry your key with you at all times. Careless loss of keys can result in loss of property and security. A mechanical key is not reliable because a thief or someone who picks up a lost key can duplicate it.

In view of the disadvantages inherent in conventional mechanical locks as described above, the inventors of the present invention have conducted extensive research and experiments on electric locks. After years of professional work in the manufacturing of related products, the inventors have finally demonstrated the improved electric lock structure of the present invention.

It is an object of the present invention to provide an electric lock of improved construction that employs only one electromagnetic coil and a DC power source to operate the lock instead of using two coils and an AC power source.

The present invention aims to actuate the actuation rod by actuating the amplified drive torque generated by only one coil and the DC power supply through the precise arrangement between the actuation rod and the actuation rod.

Moreover, the key function of the present invention can be controlled by the coded chip attached thereto.

1 is a plan view of a conventional electric lock.

2 is a plan view illustrating the internal structure of a conventional electric lock.

3 is an explanatory diagram for the lock operation shown in FIG. 2.

4 is an explanatory diagram schematically showing an AC power source required for a conventional electric lock.

5 is a plan view of the present invention.

6 is a three-dimensional perspective view of the present invention.

7 is an exemplary diagram of the operation of the present invention.

<Brief Description of Major Codes in Drawings>

41. Action rod 42. Detent arm

43. Tongue 44. Clasp

45. Follower members 46. Connecting rods

5. Lock Case 61. Sleeve

62. Coil Spring 63. Shaft Pin

In order to achieve the above-mentioned object, an improved structure for an electric lock includes a tongue actuation mechanism, a working rod, a detent arm, an electromagnetic coil, and an electrical circuit. The tongue portion actuation mechanism further includes a tongue portion, a clasp, a driven member, and a connecting rod. The electromagnetic coil is located with a driven rod that penetrates through its center on the same side of the tongue actuation mechanism. The drive rod is provided with a helically coiled spring at the maximum rear end thereof, the front end of which forces the bottom end of the extension of the acting rod, thereby driving the driven rod with a battery internally provided with an electromagnetic coil. The door can be unlocked and opened, eliminating the inconvenience of placing large conductors for AC current. Finally, a read head is provided at a suitable location in the lock case to read the chip code of the key before opening the lock.

Referring to FIG. 5, the improved structure of the electric lock of the present invention includes a tongue actuation mechanism 4, an actuation rod 41, and a detent arm 42. The tongue actuation mechanism 4 has a tongue portion 43, a latch 44, a driven member 45, and a connecting rod 46. Among the components similar to those of the conventional lock, the basic configuration and the correlation will not be described again. Only the improved features of the present invention will be described herein.

6 and 5, in the lock case 5, there is a sleeve 61 attached to one end of the action rod 41. A coil spring 62 is provided in the sleeve 61 to guide the shaft pin 63 out of it, thereby assisting in the proper positioning of the action rod 41. The front end of the action rod 41 is formed in the configuration of a portion 411 extending in an arcuate shape which is concave upward in order to avoid interfering with the tongue actuation mechanism 4. The end of the extended portion 411 is mated with the driven rod 71 lying along the inner edge of the lock case 5.

The driven rod 71 digs through an electromagnetic coil 72 provided at a position proximate to the tongue portion 43 and is slightly offset from the vertical center axis of the lock body 5.

On the other hand, the insertion slit 74 is formed in contact with one side of the sleeve 61 for the insertion of the circuit board 75, the battery compartment 76 is provided on the other side of the lock case (5) A read portion (see Fig. 5) in the head 77 is provided at an appropriate position in the lock case 5 to read out the information stored in the chip coded as provided for the key.

A sub-lock mechanism 81 having a straight slot 82 and an arced slot 83 (see FIG. 5) is provided at an appropriate position in the lock case 5. The straight slot 82 can move along the stop pin 84 located therein, and the arc slot 83 can slide by the action of the drive pin 85. A rotary switch button (not shown) is provided for the drive pin 85 to control its operation.

With this arrangement, when a person tries to get out of the building, he / she can unlock it by pressing a push button. If a person wants to enter the building, he / she may use a key with a chip that is coded to align with the readings in the head 77 to access the building.

As described above, the electromagnetic coil 72 and its driven rod 71 are suitably positioned in the most efficient position to push the distal end of the extending portion 411 of the acting rod 41, thereby providing a coil 72. The small current from is sufficient to generate the torque needed to push the rod 41. Thus, a 4 3A type battery can permanently sustain more than 10,000 operations.

In conclusion, the present invention employs only one electromagnetic coil and a DC power source formed of 4 3A type batteries for lock operation, instead of two coils and a large power source of AC. Moreover, the technical arrangement of the mutual position between the driven rod and the extension of the working rod generates amplified drive torque from the minimized DC power supply. Finally, the function of the key can be controlled by a coded chip attached to it to identify the visitor.

Those skilled in the art will readily understand how to modify the present invention. Accordingly, the appended claims should be construed to cover the true scope of the invention and all equivalent constructions falling within the spirit.

The present invention provides a simpler and more efficient lock as a DC power supply.

Claims (3)

An electromagnetic coil, actuation rod, detent arm, and tongue actuation mechanism in the lock case, wherein the actuation rod is hinged to the shaft and held at its front terminal by the detent arm, the detent The arm is also hinged to the axis and its hinged end is formed into a concave gap to hold one side of the frame which is a U-shape of the inverted portion of the tongue actuation mechanism, The tongue actuation mechanism further comprises a U-shaped frame, clasp, tongue portion, driven member, and connecting rod, wherein the central portion of the U-shaped frame of the inverted portion can freely dig through it. Wherein the rear portion of the clasp is helically enclosed by a coil spring, one end of the coil spring is fixed inside the rear leg of the U-shaped frame of the inverted, and the front leg of the U-shaped frame of the inverted Standing in front of the first upstanding member of the driven member, the second upstanding member positioned away with an appropriate distance behind the first upstanding member, the connecting rod penetrating through the two upstanding members With a coil spring around the rear part, The end of the acting rod is provided with an extension portion configured in an upwardly concave arcuate shape to avoid interfering with the tongue portion actuation mechanism, the end portion of which extends along the inner edge of the lock case. The driven rod, which is mated to the driven rod, actuated by and infiltrated by the electromagnetic coil, has a coil spring at one end thereof, and the electromagnetic coil is installed in a position proximate to the tongue portion. And a sleeve is attached to one end of the working rod, and a coil spring is provided in the sleeve to assist the axial pin to be positioned so that the working rod is properly positioned, and an insertion slit is provided for insertion of the circuit board Is formed to abut one side of the sleeve, the battery component is the Is provided on the other side of the case, With this structure, the lock can generate the torque necessary to push the working rod by appropriately positioning the electromagnetic coil and the driven rod to form an extension of the working rod and to push the distal end of the extension. Thereby unlocking with a small DC current and eliminating the problem of preparing an uncomfortable AC power source with a conductor. The method of claim 1, An improved structure of an electric lock, characterized in that a reading portion in the head is provided at an appropriate position in the lock case to read information stored in a coded chip provided in a key. The method of claim 1, A secondary lock mechanism having a straight slot and an arced slot is provided at an appropriate location in the lock case, wherein the straight slot can move along a stationary pin located therein, while the arc slot is An improved structure of an electric lock, characterized in that it is slid and movable by actuation of a drive pin and a rotary switch button is provided on the drive pin to control its operation.