GB2598502A

GB2598502A - Multifunctional door lock

Info

Publication number: GB2598502A
Application number: GB2116199.7A
Authority: GB
Inventors: Lin Fuyun; Shi Fuyin; Wu Yuansheng; Wu Jiedong
Original assignee: Xiamen Make Iot Tech Co Ltd
Current assignee: Xiamen Make Iot Tech Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2022-03-02
Anticipated expiration: 2039-09-27
Also published as: GB2598502B; WO2021056371A1; GB202116199D0

Abstract

Disclosed is a multifunctional door lock, comprising a lock case (1), a front handle (2), a rear handle (3), a connection assembly (4), a lock plug assembly (5), a lock bolt assembly (6) and a locking/unlocking mechanism (7). The locking/unlocking mechanism (7) and the lock bolt assembly (6) are both installed inside the lock case (1); an inner end of the front handle (2) and an inner end of the rear handle (3) are movably sheathed in a front portion and a rear portion of the lock case (1) respectively; the front handle (2) and the rear handle (3) are connected by means of the locking/unlocking mechanism (7) and the connection assembly (4); the lock plug assembly (5) is installed in the front handle (2); locking/unlocking is achieved by an electric motor (74) in the locking/unlocking mechanism (7) via an electric motor spring (73), a push rod (76), an electric motor clamping block (77) and a reset block (78); and locking/unlocking is achieved by the lock plug assembly (5) via a cam (730), a mechanical clamping block (710) and a mechanical spring (720). Unlocking in a mechanical manner and unlocking by means of an electronic system are two complete systems in terms of structure, the two systems do not interfere with each other during locking and unlocking, and a mechanical key is designed in such a way that the key can be inserted in or pulled out only in a locking state.

Description

MULTIFUNCTIONAL DOOR LOCK

The present invention relates to a lock and more particularly pertains to a multifunctional door lock.

A door lock is a kind of lock installed on a door. There is a variety of door locks with various structures available in the marketplace, yet most of the door locks are mono-functional only, for example, unlocking either mechanically or electronically.

In view of the aforesaid disadvantages now present in the prior art, the present invention provides a multifunctional door lock which combines various lock-and-unlock methods, including touch-contact, card swiping, mechanical key, Bluetooth® APP, etc. in one single device.

To attain this, the present invention adopts the following technical solution: A multifunctional door lock which comprises a lock case, a front handle, a rear handle, a connecting assembly, a lock cylinder assembly, a lock bolt assembly and a locking/unlocking mechanism. The locking/unlocking mechanism and the lock bolt assembly are installed in the lock case; inner ends of the front handle and the rear handle are respectively movably nested within a front lock case and a back lock case of the lock case; the front handle and the rear handle are connected via the locking/unlocking mechanism and the connecting assembly; and the lock cylinder assembly is installed on the front handle characterized in that: the locking/unlocking mechanism comprises a rotating disk, a mounting seat, a torsion spring, a power assembly, a motor clamping block, a reset block, a reset block spring, a mechanical clamping block, a mechanical spring and a cam; the rotating disk and the mounting seat are installed in the lock case in a rotatable manner; the mounting seat is movably nested in the rotating disk; and the torsion spring is provided between the rotating disk and the mounting seat; a first slot is provided on a side wall of the rotating disk; the motor clamping block is movably inserted in the first slot; a protruding end of the motor clamping block abuts against another end of a push rod of the power assembly; an inner end of the motor clamping block abuts against an outer end of the reset block, and the inner end of the motor clamping block is smaller than the outer end of the reset block; the reset block is movably nested in a spring slot of the mounting seat; the outer end of the reset block is larger than the first slot, so that the outer end of the reset block abuts against an inner wall of the rotating disk; the reset block spring is nested in a reset slot of an inner end of the reset block, and two ends of the reset block spring abut against the reset block and the spring slot of the mounting seat respectively.

The first slot on the rotating disk is a T-shaped slot; the motor clamping block is also T-shaped, movably inserted in the first slot of the rotating disk without falling off from the first slot of the rotating disk.

The push rod comprises a rod and an arc plate, and an end of the rod is vertically fixed on a middle part of an outer wall of the arc plate.

The power assembly comprises a motor, a motor spring, the push rod and a pin; an output shaft of the motor is connected with an end of the push rod; the motor spring sleeves the output shaft of the motor; an end of the motor spring abuts against the push rod; the pin is vertically fixed on the push rod and fixes the motor spring in position.

The side wall of the rotating disk is also provided with a second slot which is arranged side-by-side with the first slot; the locking/unlocking mechanism also comprises the mechanical clamping block, the mechanical spring and the cam; the mechanical clamping block is movably nested in a mechanical slot of the mounting seat; an outer end of the mechanical clamping block is movably disposed in the second slot of the rotating disk; the mechanical spring is provided on the mechanical clamping block, and two ends of the mechanical spring abut against the mechanical clamping block and the inner wall of the rotating disk respectively the cam is movably nested in the mounting seat; a middle part of the cam is connected with the lock cylinder assembly, and an outer wall of the cam abuts against an inner end of the mechanical clamping block.

The mechanical clamping block is a trapezoidal component.

Adopting such scheme, the present invention provides the following advantages: 1. The locking/unlocking mechanism comprises the rotating disk, the mounting seat, the torsion spring, the motor, the motor spring, the push rod, the motor clamping block, the reset block, the reset block spring, the mechanical clamping block, the mechanical spring and the cam; the motor achieves locking/unlocking via the motor spring, the push rod, the motor clamping block and the reset block, while the lock cylinder assembly achieves locking/unlocking via the cam, the mechanical clamping block and the mechanical spring. Unlocking by mechanical means and unlocking by electrical means are two systems totally different in structure, and hence will not intervene each other during locking/unlocking. The mechanical key is designed to be inserted or withdrawn only in a locked mode.

2. As the mechanical clamping block of the locking/unlocking mechanism of the present invention has a trapezoidal design to match and connect with the slot of the rotating disk, this prevents the mechanical clamping block from falling out when the handles are being rotated.

3. In the locking/unlocking mechanism of the present invention, the mounting seat is connected with the front handle via the connecting assembly, and the rotating disk is connected with the rear handle via the connecting assembly. In the locked mode, rotating the front handle creates an idling rotating effect to prevent unlocking, while rotating the rear handle can drive the lock bolt to rotate and unlock, so unlocking is available inside the door but unavailable outside the door.

4. The present invention combines four locking/unlocking methods, including touch-contact, card swiping, mechanical key and Bluetooth0 APP, in one single lock.

The invention is compact in structure with low power consumption, and has a long usage life and a high stability.

A preferred embodiment of the invention will now be described with reference to the accompanying drawing in which: FIG. 1 is the three-dimensional exploded view of the present invention.

FIG 2 is the sectional view of the present invention FIG. 3 is the schematic view of the present invention locked by electrical means.

FIG. 4 is the schematic view of the present invention locked by mechanical means.

FIG 5 is the schematic view of the present invention unlocked by electrical means FIG. 6 is the schematic view of the present invention unlocked by mechanical means Reference numbers in the diagram: lock case 1; front handle 2; rear handle 3; connecting assembly 4; lock cylinder assembly 5; lock bolt assembly 6; locking/unlocking mechanism 7; square shaft 8; rotating disk 71; mounting seat 72; torsion spring 73; motor 74; motor spring 75; push rod 76; motor clamping block 77; reset block 78; reset block spring 79; mechanical clamping block 710; mechanical spring 720; cam 730; pin 740; first slot 711; second slot 712; rod 761; arc plate 762.

As illustrated in FIGS. 1 and 2, the present invention is a multifunctional door lock which comprises a lock case 1, a front handle 2, a rear handle 3, a connecting assembly 4, a lock cylinder assembly 5, a lock bolt assembly 6 and a locking/unlocking mechanism 7.

The locking/unlocking mechanism 7 and the lock bolt assembly 6 are installed in the lock case 1; inner ends of the front handle 2 and the rear handle 3 are respectively nested within a front lock case and a back lock case of the lock case 1; the front handle 2 and the rear handle 3 are connected via the locking/unlocking mechanism 7 and the connecting assembly 4; and the lock cylinder assembly 5 is installed on the front handle The locking/unlocking mechanism 7 comprises a rotating disk 71, a mounting seat 72, a torsion spring 73, a motor 74, a motor spring 75, a push rod 76, a motor clamping block 77, a reset block 78, a reset block spring 79, a mechanical clamping block 710, a mechanical spring 720, a cam 730 and a pin 740.

The rotating disk 71 and the mounting seat 72 are installed in the lock case 1 in a rotatable manner; the mounting seat 72 is movably nested in the rotating disk 71; and the torsion spring 73 is provided between the rotating disk 71 and the mounting seat 72. The mounting seat 72 is connected with the front handle 2, and the rotating disk 71 is connected with the rear handle 3 via the connecting assembly 5. A side wall of the rotating disk 71 is provided with a first slot 711 and a second slot 712 in a side-by-side arrangement; an output shaft of the motor 74 is connected with an end of the push rod 76 the motor spring 75 sleeves the output shaft of the motor 74; an end of the motor spring 75 abuts against the push rod 76; the pin 740 is vertically fixed on the push rod 76 and fixes the motor spring 75 in position. The push rod 76, the motor clamping block 77, the reset block 78 and the pin 740 form a power assembly. The motor clamping block 77 is movably inserted in the first slot 711 of the rotating disk 71; a protruding end of the motor clamping block 77 abuts against another end of the push rod 76; an inner end of the motor clamping block 77 abuts against an outer end of the reset block 78, and the inner end of the motor clamping block 77 is smaller than the outer end of the reset block 78. The faying faces of the motor clamping block 77 and reset block 78 align with those of the rotating disk 71 and mounting seat 72. The reset block 78 is movably sleeved in a spring slot 721 of the mounting seat 72; the outer end of the reset block 78 is larger than the first slot 711, so that the outer end of the reset block 78 also abuts against an inner wall of the rotating disk 71. The reset block spring 79 is nested in a reset slot 781 of the inner end of the reset block 78, and two ends of the reset block spring 79 abut against the reset block 78 and the spring slot 721 of the mounting seat 72 respectively.

In this embodiment, the first slot 711 on the rotating disk 71 is a T-shaped slot; the motor clamping block 710 is also T-shaped, movably inserted in without falling off from the first slot 711 of the rotating disk 71.

The mechanical clamping block 710 is a trapezoidal component movably nested in a mechanical slot 722 of the mounting seat 72; an outer end of the mechanical clamping block 710 is movably disposed in the second slot 712 of the rotating disk 71; the mechanical spring 720 is provided on the mechanical clamping block 710, and two ends of the mechanical spring 720 abut against the mechanical clamping block 710 and the inner wall of the rotating disk 71 respectively. The cam 730 is movably nested in the mounting seat 72 a middle pad of the cam 730 is connected with the lock cylinder assembly 5, and an outer wall of the cam 730 abuts against an inner end of the mechanical clamping block 710.

In this embodiment, the push rod 76 comprises a rod 761 and an arc plate 762, and an end of the rod 761 is vertically fixed on a middle part of an outer wall of the arc plate 762. Another end of the rod 761 is connected with the output shaft of the motor 74. The working principle of the present invention is: 1. As illustrated in FIG. 3 and 1, to lock by electrical means: During locking, the present invention receives a controlling signal from a Bluetooth0 APP in a mobile phone. The motor 74 rotates reversely and presses upwards against the motor spring 75. The motor spring 75 then drives the push rod 76 to move upwards by 2mm. As the motor clamping block 77 is not pressed by the push rod 76, resilience force of the reset block spring 79 will bias the reset block 78 upwards, which in turn pushes the motor clamping block 77 upwards and out from the spring slot 721 of the mounting seat 72. At this stage the mounting seat 72 is not locked against the rotating disk 71. As the mounting seat 72 is connected with the front handle 2 via the connecting assembly, and the rotating disk 71 is connected with the rear handle 3 via the connecting assembly, when the mounting seat 72 and the rotating disk 71 are not locked against each other via the motor clamping block 77 in between, the front handle 2 is in a state of idling rotation. Rotating the handle manually will not drive the rotating disk 71 to rotate, and hence will not drive a square shaft 8 and the lock bolt in the lock bolt assembly 6 to operate, achieving the purpose of locking.

The cooperation relationship between the motor clamping block 77 and the rotating disk 71: When the motor 74 is not operating, the reset block spring 79 acts on the reset block 78 which in turn acts on the motor clamping block 77. As the reset block 78 is larger than the first slot 711 (the trapezoidal recession) on the rotating disk 71, the reset block 78 is pressed on the inner wall of the rotating disk 71. Idling rotation will occur and it is unstressed when the handle is being rotated manually.

When the motor 74 is operating, the push rod 76 acts on the motor clamping block 77 and causes the motor clamping block 77 to move downwards (the arc shape of the push rod 76 is useful in that it can limit the motor clamping block 77 in position during handle rotation so that the motor clamping block 77 keeps being stressed during handle rotation). The motor clamping block 77 acts on the reset block 78 which in turn acts on the reset block spring 79 (as illustrated by FIG. 5), rotates the front handle 2 to drive the lock cylinder assembly 5. The lock cylinder assembly 5 drives the mounting seat 72 to rotate, and the mounting seat 72 drives the rotating disk 71 to rotate via the motor clamping block 77. The rotating disk 71 is connected with the square shaft 8 by hexagonal coupling and drives the square shaft 8 to rotate, which in turn drives the lock bolt of lock bolt assembly 6 to rotate, achieving the purpose of unlocking electrically.

2. As illustrated in FIG. 4 and FIG. 1, to lock by mechanical means: Insert the mechanical key and rotate the cam 730 anti-clockwise to a horizontal level. The cam 730 does not press against the mechanical clamping block 710. The mechanical clamping block 710 moves downwards upon the spring effect of the mechanical spring 720, so that the mounting seat 72 and the rotating disk 71 are not locked against each other. Now rotating the front handle 2 does not drive the square shaft 8 and the lock bolt in the lock bolt assembly 6 to rotate, and hence achieving the purpose of locking.

3. As illustrated by FIG. 5 and FIG. 1, to unlock by electric means: During unlocking, the motor 74 rotates oppositely compared with the rotating direction of the motor during locking, and presses downwards against the motor spring 75. The motor spring 75 then drives the push rod 76 to move downwards by 2mm. As the motor clamping block 77 is pressed downwards by the push rod 76, the push rod 76 causes the motor clamping block 77 and the reset block 78 to move downwards and compress the reset block spring 79. The motor clamping block 77 is pushed (partially) into the spring slot 721 of the mounting seat 72. At this stage the mounting seat 72 and rotating disk 71 are locked against each other via the motor clamping block 77. As the mounting seat 72 is connected with the front handle 2 via the connecting assembly, and the rotating disk 71 is connected with the rear handle 3 via the connecting assembly 5, when the motor clamping block 77 locks the mounting seat 72 and the rotating disk 71, manually rotating the front handle 2 will drive the rotating disk 71 to rotate, and hence will drive the square shaft 8 and the lock bolt in the lock bolt assembly 6 to rotate, achieving the purpose of unlocking.

4. As illustrated by FIG. 6 and 1, to unlock by mechanical means: Insert the mechanical key and rotate the cam 730 clockwise to 901. The cam 730 presses against mechanical clamping block 710 upwards, and then the mounting seat 72 and the rotating disk 71 are locked against each other via the mechanical clamping block 710. Now rotating the front handle 2 to drive the rotating disk 71, the square shaft 8 and the lock bolt in the lock bolt assembly 6 to rotate, and hence achieving the purpose of unlocking.

The above embodiment is only some of the preferred embodiments of the present invention and should not be considered as any limitation to the present invention. Equivalent changes or elaborations made in accordance with the scope of teachings of the present invention should also fall within the scope of protection of the present invention.

Claims

CLAIMS1 A multifunctional door lock, comprising a lock case, a front handle, a rear handle, a connecting assembly, a lock cylinder assembly, a lock bolt assembly and a locking/unlocking mechanism; the locking/unlocking mechanism and the lock bolt assembly are installed in the lock case; inner ends of the front handle and the rear handle are respectively movably nested within a front lock case and a back lock case of the lock case; the front handle and the rear handle are connected via the locking/unlocking mechanism and the connecting assembly; and the lock cylinder assembly is installed on the front handle; characterized in that: the locking/unlocking mechanism comprises a rotating disk, a mounting seat, a torsion spring, a power assembly, a motor clamping block, a reset block, a reset block spring, a mechanical clamping block, a mechanical spring and a cam; the rotating disk and the mounting seat are installed in the lock case in a rotatable manner; the mounting seat is movably nested in the rotating disk; and the torsion spring is provided between the rotating disk and the mounting seat; a first slot is provided on a side wall of the rotating disk; the motor clamping block is movably inserted in the first slot; a protruding end of the motor clamping block abuts against another end of a push rod of the power assembly; an inner end of the motor clamping block abuts against an outer end of the reset block, and the inner end of the motor clamping block is smaller than the outer end of the reset block; the reset block is movably nested in a spring slot of the mounting seat; the outer end of the reset block is larger than the first slot, so that the outer end of the reset block abuts against an inner wall of the rotating disk; the reset block spring is nested in a reset slot of an inner end of the reset block, and two ends of the reset block spring abut against the reset block and the spring slot of the mounting seat respectively.
2. The multifunctional door lock of claim 1, wherein the first slot on the rotating disk is a T-shaped slot; the motor clamping block is also T-shaped, movably inserted in the first slot of the rotating disk without falling off from the first slot of the rotating disk.
3. The multifunctional door lock of claim 1, wherein the push rod comprises a rod and an arc plate, and an end of the rod of the push rod is vertically fixed on a middle part of an outer wall of the arc plate.
4. The multifunctional door lock of claim 1, wherein the power assembly comprises a motor, a motor spring, the push rod and a pin; an output shaft of the motor is connected with an end of the push rod; the motor spring sleeves the output shaft of the motor; an end of the motor spring abuts against the push rod; the pin is vertically fixed on the push rod and fixes the motor spring in position.
5. The multifunctional door lock of claim 1, wherein the side wall of the rotating disk is also provided with a second slot which is arranged side-by-side with the first slot; the locking/unlocking mechanism also comprises the mechanical clamping block, the mechanical spring and the cam; the mechanical clamping block is movably nested in a mechanical slot of the mounting seat; an outer end of the mechanical clamping block is movably disposed in the second slot of the rotating disk; the mechanical spring is provided on the mechanical clamping block, and two ends of the mechanical spring abut against the mechanical clamping block and the inner wall of the rotating disk respectively; the cam is movably nested in the mounting seat; a middle part of the cam is connected with the lock cylinder assembly, and an outer wall of the cam abuts against an inner end of the mechanical clamping block.
6. The multifunctional door lock of claim 1, wherein the mechanical clamping block is a trapezoidal component.