ELECTRIC LOCK

Abstract

An electric lock comprising a housing (1) including a latch (11); a drive device (2) arranged in the housing (1) and comprising a motor (21), a threaded rod (22) and a moving element (23), the motor (21) being connected to the threaded rod (22), the moving element (23) being connected to the threaded rod (22), the moving element (23) including a projecting part; a transmission device (3) comprising a transmission member (31) and a thrust member (32), the transmission member (31) including a constraint notch, the projecting part being arranged in this notch, the thrust member (32) having a first end connected to the drive member (41), and a third end in contact with the latch (11), the thrust member (32) including a first elastic element; and the lock includes a manual control device (4). Figure for the abridged version: 2

Description

Title of the invention: ELECTRIC LOCK TECHNICAL FIELD OF THE INVENTION

[0001] The present invention relates to a lock, and more particularly to an electric lock.

[0002] DESCRIPTION OF PRIOR ART

[0003] Taiwanese patent No. 1622696 describes an electronic motorized lock which, as illustrated in [Fig. 2] of this patent, is mainly composed of a drive motor, a worm gear, a set of transmission gears, a connecting gear, at least one elastic element, and a latch body, all housed in an external casing, and includes a power supply connection port for powering from an external power source. Through the above combination, automatic control of the opening or locking of the door is possible.

[0004] However, the device cannot be opened without a power supply. Common electronic locks on the market will remain locked if there is no power. One solution to this situation is to connect a USB port to provide the necessary power for unlocking. This is very inconvenient. Summary of the invention

[0005] To achieve the above objective, the present invention relates to an electric lock, which comprises:

[0006] a housing, the housing being provided with a latch; a drive device, the drive device being arranged inside the housing, the drive device comprising a motor, a threaded rod, and a moving element, the motor being connected to the threaded rod, the motor being capable of rotating the threaded rod, the moving element being connected to the threaded rod, the moving element being formed with a protruding part; a transmission device, the transmission device being arranged inside the housing, the transmission device comprising a transmission member and a thrust member, the transmission member being formed with a stress notch, the protruding part being arranged in the stress notch, the thrust member comprising a first end, a second end and a third end, the first end being connected to the transmission member, the third end being in contact with the latch, the thrust member being provided with a first elastic element; at least one manual control device, the manual control device being arranged inside the housing, the manual control device comprising a drive member and a driven member, the driven member being placed next to the drive member, one end of the drive member being in contact with the other end of the thrust member; and a controller, the controller being arranged inside the housing and connected to the drive device.

[0007] Thanks to the aforementioned combination, the present invention allows automatic locking or unlocking by means of the drive device in a normal situation and manual unlocking by means of the manual operating device in the event of a power failure.

[0008] According to another aspect of the invention, the housing includes a detection device.

[0009] According to another aspect of the invention, the detection device comprises a magnetic blade switch.

[0010] According to another aspect of the invention, the first elastic element comprises a return spring.

[0011] According to another aspect of the invention, the drive member comprises a lock cylinder or a handle.

[0012] According to another aspect of the invention, the housing includes a second elastic element.

[0013] According to another aspect of the invention, the second elastic element comprises a spring.

[0014] According to another aspect of the invention, the driven member includes a pressure portion.

[0015] According to another aspect of the invention, the housing includes a first microswitch.

[0016] According to another aspect of the invention, the housing is provided, inside it, with a plurality of second micro-switches.

[0017] BRIEF DESCRIPTION OF THE DRAWINGS [Fig.1] Fig.1 is a perspective view showing the external appearance of the present invention. [Fig.2] Fig.2 is a perspective view of the internal structure of the present invention. [Fig.3] Fig.3 is a plan view of the present invention. [Fig.4] The [Fig.4] is a perspective view showing the internal structure of the present invention from a different viewing angle. [Fig.5] The [Fig.5] is a plan view of the present invention taken from a different angle of view. [Fig.6] The [Fig.6] is a schematic view illustrating the operation of the present invention in which unlocking is carried out using a drive device. [Fig.7] Fig.7 is a schematic view illustrating the operation of the present invention, the locking being carried out with the drive device. [Fig.8] Fig.8 is a schematic view illustrating the operation of the present invention in which a first micro-switch is not pressed by a pressing part. [Fig.9] Fig.9 is a schematic view illustrating the operation of the present invention, the unlocking being carried out by means of a manual operating device.

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0019] With reference to [Fig.1], it appears that this [Fig.1] is a perspective view showing the external appearance of the present invention. In addition, figures 2 and 3 show an electric lock, which includes: a housing 1, housing 1 being equipped with a latch 11; a drive device 2, the drive device 2 being arranged inside the housing 1, the drive device 2 comprising a motor 21, a threaded rod 22 and a moving element 23, the motor 21 being connected to the threaded rod 22, the motor 21 being able to drive the threaded rod 22 in rotation, the moving element 23 being connected to the threaded rod 22, the rotation of the threaded rod 22 causing the moving element 23 to move forward / backward, the moving element 23 being formed with a projecting part 231; a transmission device 3, the transmission device 3 being arranged inside the housing 1, the transmission device 3 comprising a transmission member 31 and a thrust member 32, the transmission member 31 being formed with a stress notch 311, the projecting part 231 being arranged in the stress notch 311, the thrust member 32 comprising a first end 321, a second end 322, and a third end 323, the first end 321 being connected to the transmission member 31, the third end 323 being in contact with the latch 11, the thrust member 32 being provided with a first elastic member 324, as shown in [Fig.4]; at least one manual control device 4, the manual control device 4 being arranged inside the housing 1, the manual control device 4 comprising a drive member 41 and a driven member 42, the driven member 42 being arranged next to the drive member 41, one end of the drive member 41 being in contact with the second end 322 of the thrust member 32; and a controller 5, the controller 5 being arranged inside the housing 1 and connected to the drive device 2, the controller 5 controlling the operation of the motor 21.

[0020] In the invention, the housing 1 is provided with a detection device 12, the detection device 12 being arranged on one side of the housing 1 which is adjacent to the door frame, the detection device 12 being connected to the controller 5, the detection device 12 being a magnetic reed switch.

[0021] In the invention, the first elastic element 324 is a return spring.

[0022] In the invention, the housing 1 is provided with a second elastic element 13, the latch 11 being connected to the second elastic element 13, the second elastic element 13 being a spring.

[0023] In the invention, the driven member 42 is formed with a pressure portion 421.

[0024] In the invention, the housing 1 is provided with a first micro-switch 14, the first microswitch 14 being connected to controller 5, the first microswitch 14 being able to be pressed by the pressure portion 421.

[0025] In the invention, the lock is connected to a mains power supply or an external power supply to support the operation of the controller 5 and the drive device 2. This is a known technology and is not a new part of the present invention, so no further description will be given here.

[0026] With reference to [Fig. 5], it appears that the present invention may further comprise a plurality of second micro-switches 15 arranged inside the housing 1. The second micro-switches 15 are connected to the controller 5, so that when the second micro-switches 15 are pressed, the controller 5 causes the operation of the motor 21 to stop. This is a known technology and is not a novel part of the present invention, so no further description will be given here.

[0027] With reference to Figures 6 and 8, it appears that, when the controller 5 receives an effective signal, such as a fingerprint or a code, or when a user operates the manual control device 4 so that the drive member 41 pushes the driven member 42, and the first micro-switch 14 is not pressed by the pressure portion 421, the controller 5 supplies electrical energy to the drive device 2, operating the motor 21 of the drive device 2, and the motor 21 drives the threaded rod 22 in rotation so that the threaded rod 22 drives the moving element 23 to move in a direction towards the motor 21, causing the protruding part 231 to drive the transmission member 31 to move in a direction towards the motor 21, thus causing the first end 321 of the push member 32 to rotate in a direction towards the motor 21, so that the third end 323 of the push member 32 pushes the latch 11 so that it retracts into the housing 1 in order to thereby achieve an opening effect of the door, and furthermore, the projecting part 231 is located at one end of the constraint notch 311 so that the transmission member 31 and the push member 32 do not move under the effect of the projecting part 231; Referring further to [Fig.7], it appears that, when the door is closed, the detection device 12 detects a magnetic field on the door panel 6, and causes the controller 5 to drive the motor 21 to operate in the opposite direction, which causes the threaded rod 22 to rotate in the opposite direction and causes the moving element 23 to move in the opposite direction, causing the protruding part 231 to move in the constraint notch 311,in such a way that the transmission member 31 and the thrust member 32 are not affected by the protruding part 231 and thus, allowing the first elastic element 324 of the thrust member 32 to return the thrust member 32 to its original position, thereby causing the third end 323 of the thrust member 32 to push the latch 11 out of the housing 1, or alternatively, the present invention includes a second elastic element 13, when the latch 11 is pushed by the third end 323 of the thrust member 32 so that it retracts into the housing 1 and locks, the second elastic element 13 is also compressed, and when the thrust member 32 no longer pushes the latch 11, the second elastic element 13 releases the spring force to push the latch 11 outwards.

[0028] Referring to [Fig. 9], it appears that in the event of a power failure or malfunction of the motor 21 rendering the controller 5 and the drive device 2 unusable, an external force can be applied to cause the drive member 41 of the manual control device 4 to push the driven member 42 so as to press the driven member 42 against the second end 322 of the push member 32, causing the third end 323 of the push member 32 to push the latch 11 so as to retract the latch 11 into the housing 1, achieving a manual opening effect of the door. When the external force is no longer exerted, the first elastic element 324 returns the push member 32 to its initial position, thus causing the third end 323 of the push member 32 to push the latch 11 out of the housing 1, returning in the state shown by the [Fig.3], and in the case where the present invention includes the second elastic element 13, the second elastic element 13 also releases a spring force so as to push the latch 11 outwards.

[0029] In the present embodiment, a drive element 41 in the form of a locking cylinder is taken as an illustrative example. In In practical applications, the drive element 41 can be a lock cylinder or a handle, or a combination of both, as shown in [Fig.3].

[0030] The present invention provides the transmission member 31 with the constraint notch 311 formed inside it, and, when the second end 322 of the push member 32 is pushed by the driven member 42, the constraint notch 311 of the transmission member 31 allows the transmission member 31 unaffected by the protruding portion 231 to move with it, thus achieving an electrically assisted door opening and a manual door opening not interfering with each other.In the event of a power failure or malfunction of the drive device 2 which renders the electrically assisted door opening inoperative, it is possible to immediately switch to manual opening of the door, which makes it possible to achieve the effect that, normally, the drive device 2 works to automatically perform the locking and unlocking, while in the event of a power failure or malfunction, the manual operating device 4 is able to perform the manual unlocking.

Claims

Demands

1. Electric lock, characterized in that it comprises a housing (1), the housing (1) being provided with a latch (11); a drive device (2), the drive device (2) being arranged inside the housing (1), the drive device (2) comprising a motor (21), a threaded rod (22) and a moving element (23), the motor (21) being connected to the threaded rod (22), the motor (21) being capable of driving the threaded rod (22) in rotation, the moving element (23) being connected to the threaded rod (22), the moving element (23) being formed with a projecting part (231);a transmission device (3), the transmission device (3) being arranged inside the housing (1), the transmission device (3) comprising a transmission member (31) and a thrust member (32), the transmission member (31) being formed with a stress notch (311), the projecting part (231) being arranged in the stress notch (311), the thrust member (32) comprising a first end (321), a second end (322) and a third end (323), the first end (321) being connected to the transmission member (31), the third end (323) being in contact with the latch (11), the thrust member (32) being provided with a first elastic member (324);at least one manual control device (4), the manual control device (4) being arranged inside the housing (1), the manual control device (4) comprising a drive member (41) and a driven member (42), the driven member (42) being arranged next to the drive member (41), one end of the drive member (41) being in contact with the second end (322) of the thrust member (32); and a controller (5), the controller (5) being arranged inside the housing (1) and connected to the drive device (2).

2. Electric lock according to claim 1, characterized in that the housing (1) includes a detection device (12).

3. Electric lock according to claim 2, characterized in that the detection device (12) comprises a magnetic reed switch.

4.

5.

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9.

10. Electric lock according to claim 1, characterized in that the first elastic member (324) comprises a return spring. Electric lock according to claim 1, characterized in that the drive member (41) comprises a lock cylinder or a handle. Electric lock according to claim 1, characterized in that the housing (1) includes a second elastic element (13). Electric lock according to claim 6, characterized in that the second elastic element (13) comprises a spring. Electric lock according to claim 1, characterized in that the driven member (42) comprises a pressure portion (421). Electric lock according to claim 1, characterized in that the housing (1) includes a first micro-switch. Electric lock according to claim 1, characterized in that the housing (1) is provided, inside it, with a plurality of second micro-switches (15).