A fingerprint door lock

Abstract

The present invention discloses a fingerprint door lock, including a front handle, a secondary handle, a square tube, a front cover and a secondary cover, a fingerprint module is installed on the inner surface of the front face of the front handle, a fingerprint seat is fixedly installed inside the front handle, a motor is fixedly installed inside the fingerprint seat, a rotor is fixedly connected to the output end of the motor, and a rat-tooth clutch is installed on the outer surface of the motor output shaft, and the present invention relates to the field of fingerprint lock technology. The fingerprint door lock can realize the mechanical lock core and biometric fingerprint recognition through the cooperation between the motor, the rotor, the rat-tooth clutch, the buffer spring, the transmission male clutch, the lock core, the lock column and the clutch male concave position, and the two authority collection forms are summarized together, and the clutch is shared and integrated in a simple structural manner, realizing the first attempt to integrate the mechanical key and the fingerprint in the handle, and the first attempt to integrate the anti-locking structure and the power supply in the handle.

Description

Technical Field

[0001] The present invention relates to the technical field of fingerprint locks, in particular to a fingerprint door lock. Background Art

[0002] Fingerprint lock is a kind of intelligent lock that uses the fingerprint of human finger as the identification carrier and means. It is the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology. Fingerprint lock is generally composed of electronic identification and control, mechanical linkage system. The uniqueness and non-replicability of living fingerprints determine that fingerprint lock is the safest type of lock among all locks. In addition to fingerprint identification, fingerprint lock should be equipped with emergency mechanical key according to the provisions of the Ministry of Public Security.

[0003] From a macro perspective, the existing fingerprint door lock field has always retained the traditional mechanical atmosphere. Not only that, most of the door fields use ball locks, and the update and iteration of split lock technology (handle and mechanical lock cylinder are separated) can only continuously polish the structure and change the material properties, lacking innovation. With the advancement of technology, some businesses have integrated biometric technology into door locks to replace traditional mechanical keys. The above innovation form is understandable and brings a lot of convenience to users, but convenience is not the ultimate mission of fingerprint locks.

[0004] The security does not meet the requirements of anti-theft locks. The entire lock fails after the electronic part fails. Although some businesses have added mechanical lock cores to fingerprint locks as backup, the entire lock is huge, which is bound to increase the cost, and the transportation cost will also increase greatly. It is also inconvenient to assemble, manufacture and repair it. For this reason, the present invention proposes a fingerprint door lock. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the present invention provides a fingerprint door lock, which solves the technical problem that the security does not meet the requirements of anti-theft locks and the entire lock fails after the electronic part fails.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the present invention is implemented through the following technical solutions: a fingerprint door lock, comprising a front handle, a secondary handle, a square tube, a front cover and a secondary cover, a fingerprint module is installed on the inner surface of the front face of the front handle, a fingerprint seat is fixedly installed inside the front handle, a motor is fixedly installed inside the fingerprint seat, a rotor is fixedly connected to the output end of the motor, a rat-tooth clutch is installed on the outer surface of the motor output shaft, a buffer spring is sleeved on the outer surface of the motor output end and located between the rat-tooth clutch and the motor, a transmission clutch is penetrated inside the front handle, and a fixed seat is sleeved on the front end of the outer surface of the motor;

[0009] A keyhole is provided on the front side of the front handle and below the fingerprint module, a lock core is fixedly installed below the inner surface of the fixing seat, a lock column is installed at the bottom of the lock core, the end of the lock core has a concave surface and a convex surface, a lock bead is movably connected to one side of the lock core, and a clutch male concave position is provided on one side of one end of the transmission male clutch.

[0010] Preferably, a battery is fixedly installed inside the auxiliary handle, and an auxiliary clutch is fixedly installed on one side of the inner surface of the square tube.

[0011] Preferably, a battery compartment is sleeved on the outer surface of the battery, a first fixed spacer is installed between the battery compartment and the auxiliary clutch, and one side of the battery is fixedly connected to the battery compartment via a positive pole spring.

[0012] Preferably, a toggle switch is fixedly installed at the bottom of the inner side of the auxiliary handle, a slider is installed at one end of the toggle switch, an anti-locking bead is movably connected to one end of the inner side of the slider, and a positioning bead is connected inside the slider.

[0013] Preferably, the outer surface of one end of the transmission male clutch is fixedly connected with a second fixed spacer, and the interiors of the front handle and the auxiliary handle are respectively fixedly mounted with a transmission plate and an auxiliary transmission plate.

[0014] Preferably, the transmission male clutch and the auxiliary male clutch are respectively fixedly connected to the square tube via positioning beads.

[0015] Preferably, the outer surfaces of the transmission plate and the auxiliary transmission plate are both clamped with clamping rings.

[0016] Preferably, a battery cover is fixedly mounted on the front side of the secondary handle.

[0017] Preferably, door thickness positioning holes are provided on both left and right sides of the outer surface of the square tube.

[0018] Preferably, a password module is provided on the front side of the front cover.

[0019] (III) Beneficial effects

[0020] The present invention provides a fingerprint door lock. It has the following beneficial effects:

[0021] (1) The fingerprint door lock can realize the mechanical lock core and biometric fingerprint recognition through the coordination between the motor, rotor, mouse tooth clutch, buffer spring, transmission male clutch, lock core, lock column and clutch male recess, and the two authority collection forms are integrated together, and the clutch is shared and integrated in a simple structural manner, realizing the first attempt to integrate the mechanical key and fingerprint in the handle, and the first attempt to integrate the anti-lock structure and power supply in the handle.

[0022] (2) The fingerprint door lock can achieve the following functions through the coordination between the toggle switch, the slider, the anti-lock bead and the positioning bead: after the user in the room locks the door, the user will not release the anti-lock state when leaving the house due to instinctive drive, but will directly turn the handle to open the door. Therefore, the anti-lock structure needs to have the ability to automatically reset without hindering the user from doing so, ensuring that external authority cannot unlock the door, and this function can be realized for the first time in a small handle space.

[0023] (3) The fingerprint door lock uses the front and rear common parts appropriately through the first fixed spacer, the second fixed spacer, the transmission plate, the auxiliary transmission plate, the front handle, the auxiliary handle and other parts, which greatly reduces the cost and the types of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the anti-locking structure of the present invention;

[0026] Figure 3 For the present invention Figure 1 A partial enlarged view of point A in the middle.

[0027] In the figure, 1-front handle, 2-secondary handle, 3-password module, 4-square tube, 5-fingerprint module, 6-front cover, 7-secondary cover, 8-fingerprint seat, 9-motor, 10-rotor, 11-mouse tooth clutch, 12-buffer spring, 13-transmission male clutch, 14-fixed seat, 15-lock cylinder, 16-lock column, 17-lock bead, 18-clutch male concave position, 19-battery, 20-secondary clutch male, 21-battery compartment, 22-first fixed spacer, 23-positive spring, 24-toggle switch, 25-slider, 26-positioning bead, 27-second fixed spacer, 28-transmission plate, 29-clamp ring, 30-battery cover, 31-door thickness positioning hole, 32-secondary transmission plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-3The embodiment of the present invention provides a technical solution: a fingerprint door lock, comprising a front handle 1, a secondary handle 2, a square tube 4, a front cover 6 and a secondary cover 7, the left and right sides of the outer surface of the square tube 4 are provided with door thickness positioning holes 31, the front cover 6 is provided with a password module 3 on the front side, a battery 19 is fixedly installed inside the secondary handle 2, a battery compartment 21 is sleeved on the outer surface of the battery 19, a first fixed spacer 22 is installed between the battery compartment 21 and the secondary clutch male 20, and the first fixed spacer 22, the second fixed spacer 27, the transmission plate 28, the secondary transmission plate 32, the front handle 1, the secondary handle 2 and other parts are used appropriately, which greatly reduces the cost and the category of parts, and one side of the battery 19 is fixedly connected to the battery compartment 21 through the positive spring 23 A toggle switch 24 is fixedly installed at the bottom of the inner side of the auxiliary handle 2. The following functions can be achieved through the cooperation between the toggle switch 24, the slider 25, the anti-lock bead 17 and the positioning bead 26: after the user in the room locks the door, the user will not release the anti-lock state when going out due to instinctive drive, but directly turn the handle to open the door. Therefore, the anti-lock structure needs to have automatic reset capability without hindering the user's behavior. It is necessary to ensure that external authority cannot unlock the door, and this function can be realized for the first time in a narrow handle space. A slider 25 is installed at one end of the toggle switch 24, and the anti-lock bead 17 is movably connected to one end of the inner side of the slider 25. The positioning bead 26 is connected to the inside of the slider 25. A secondary clutch male 20 is fixedly installed on one side of the inner surface of the square tube 4. The inner surface of the front handle 1 A fingerprint module 5 is installed on the surface, a fingerprint seat 8 is fixedly installed inside the front handle 1, and a motor 9 is fixedly installed inside the fingerprint seat 8. The cooperation between the motor 9, the rotor 10, the mouse-tooth clutch 11, the buffer spring 12, the transmission male clutch 13, the lock cylinder 15, the lock column 16 and the clutch male recess 18 can realize the mechanical lock cylinder 15 and the biometric fingerprint, and the two forms of authority collection are summarized together, and the clutch is shared and integrated in a simple structural manner, realizing the first attempt to integrate the mechanical key and the fingerprint into the handle, and the first attempt to integrate the anti-locking structure and the power supply into the handle. The output end of the motor 9 is fixedly connected to the rotor 10, and the outer surface of the output shaft of the motor 9 is installed with a mouse-tooth clutch 11. The outer surface of the output end of the motor 9 is located between the mouse-tooth clutch 11 and the power supply. A buffer spring 12 is sleeved between the motor 9, a transmission male clutch 13 is penetrated inside the front handle 1, and a second fixed spacer 27 is fixedly connected to the outer surface of one end of the transmission male clutch 13, and a transmission plate 28 and an auxiliary transmission plate 32 are fixedly installed inside the front handle 1 and the auxiliary handle 2, respectively. The outer surfaces of the transmission plate 28 and the auxiliary transmission plate 32 are clamped with a snap ring 29, and a battery cover 30 is fixedly installed on the front of the auxiliary handle 2. The transmission male clutch 13 and the auxiliary clutch male 20 are respectively fixedly connected to the square tube 4 through a positioning bead 26. A fixing seat 14 is sleeved on the front end of the outer surface of the motor 9, and a keyhole 3 is opened on the front of the front handle 1 and below the fingerprint module 5. A lock core 15 is fixedly installed below the inner surface of the fixing seat 14, and a lock column 16 is installed at the bottom of the lock core 15.The end of the lock core 15 has a concave surface and a convex surface, a lock ball 17 is movably connected to one side of the lock core 15, and a clutch male concave position 18 is opened on one side of one end of the transmission male clutch 13.

[0030] The up and down movement of the rat-tooth clutch 11 is limited by the inner track of the fixed seat 14 and is stable; the release force of the buffer spring 12 is stabilized by the inner groove of the fixed seat 14; the eccentricity of the motor 9 shaft is centered by the inner hole of the fixed seat 14; the center hole of the mechanical lock core 15 is opposite to the external keyhole by the concave hole of the fixed seat 14; the convex edge of the transmission male clutch 13 is ensured to be concentric by the concave ring track of the fixed seat 14; in addition, the fixed seat 14 provides a channel for the lock bead 17 to connect with the concave and convex position at the end of the lock core 15; in addition, the fingerprint module 5 and the mechanical lock core 15 share a transmission male clutch 13 without interfering with each other. In addition, when the fingerprint module 5 is damaged by an illegal person, the damage cannot affect the internal structure. In addition, when a fire occurs and the circuit facilities fail, the mechanical lock core 15 will not be affected and can continue to be used normally, thereby effectively improving the security performance; in addition, the fixing seat 14 can effectively fix the buffer spring 12, the motor 9, the lock core 15 and the fingerprint seat 8 to form a module. In addition, the module is fixed in the handle by pins to achieve no assembly marks on the surface; in addition, the handle can be used on other different lock panels to achieve functional superposition. Due to the realization of the above-mentioned multiple capabilities, a smaller number of components are used, thereby achieving improved assembly efficiency and stability performance.

[0031] When in use, after the fingerprint module 5 receives the authorization, the motor 9 rotates the shaft to drive the rotor 10, and the protruding structure of the rotor 10 is transferred to the concave position of the mouse-tooth clutch 11. The motor 9 cooperates with the rotor 10 to change the direction of the force from rotational motion to up and down motion, so that the mouse-tooth clutch 11 has only one degree of freedom of movement, and the up and down movement is realized by clutching, and a spring is added to release the force of the mouse-tooth clutch 11, so that the mouse teeth on the clutch are interlocked with the teeth in the transmission clutch 13, and the linkage unlocking form is realized. When they are closed, the linkage unlocking is realized, and when they are separated, the linkage is closed;

[0032] The key unlocking is encoded by the concave-convex structure of the key, and the blade of the lock core 15 matches the concave-convex structure of the key for decoding. The code provides a movable space for the locked lock column 16, and the lock core 15 rotates to disengage the lock column 16. At the same time, the end of the lock core 15 has a concave surface and a convex surface. The convex position pushes the lock ball 17 into the clutch male concave position to realize linkage unlocking. When locking, the concave surface provides a movable space for the locked lock ball 17 to realize non-linkage.

[0033] A replaceable battery 19 is arranged in the rotating column of the auxiliary handle 2, and a toggle key anti-locking structure is arranged on the side of the battery 19. When the front handle 1 receives the authority to unlock, the front handle 1 rotates and is linked with the transmission male clutch 13, the square tube 4 and the lock tongue auxiliary handle 2, so that the anti-locking mechanism is cut off and prevents its linkage form, thereby realizing anti-locking. The anti-locking toggle switch 24 pushes the anti-locking bead 17 into the stop point through the linkage with the anti-locking bead 17. When the front handle 1 receives any unlocking authority, it cannot be unlocked due to the linkage being blocked. When the linkage power is blocked, the direction of the rotational force around the axis is changed to an outward squeezing force through the auxiliary clutch male 20 structure, so that the stress of the auxiliary clutch male 20 stuck is released through the anti-locking bead 17 and the front cover 6. The recessed positions are connected, and the brake is applied. When the inner handle rotates in the anti-lock state, the power is output by the handle to rotate around the axis. Since the anti-locking column is located in the handle, it rotates around the axis together with the handle, and the anti-locking bead 17 is lifted upward to achieve reset through the slope on the recessed position of the front cover 6. The reset process is accurately reset through the positioning bead 26 in the anti-locking structure. The toggle switch 24 is designed on the inner side of the handle rotary column. When the user's hand is naturally placed on the handle, it can be toggled by the actual finger. In addition, since the toggle anti-lock switch is located on the inner side of the handle rotary column, it is not easy to trigger the anti-lock when a child plays with it. In addition, the toggle anti-lock is arranged on the inner side of the handle rotary column, and its toggle form can intuitively indicate to the user whether it is in the anti-locking state.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fingerprint door lock, comprising a front handle (1), a secondary handle (2), a square tube (4), a front cover (6) and a secondary cover (7), characterized in that: A fingerprint module (5) is installed on the inner surface of the front face of the front handle (1); a fingerprint seat (8) is fixedly installed inside the front handle (1); a motor (9) is fixedly installed inside the fingerprint seat (8); an output end of the motor (9) is fixedly connected to a rotor (10); a rat-tooth clutch (11) is installed on the outer surface of the output shaft of the motor (9); a buffer spring (12) is sleeved on the outer surface of the output end of the motor (9) and located between the rat-tooth clutch (11) and the motor (9); a transmission male clutch (13) runs through the interior of the front handle (1); and a fixed seat (14) is sleeved on the front end of the outer surface of the motor (9); A keyhole (3) is provided on the front side of the front handle (1) and below the fingerprint module (5); a lock core (15) is fixedly mounted below the inner surface of the fixing seat (14); a lock column (16) is mounted at the bottom of the lock core (15); a concave surface and a convex surface are provided at the end of the lock core (15); a lock bead (17) is movably connected to one side of the lock core (15); and a clutch male concave position (18) is provided on one side of one end of the transmission male clutch (13); A battery (19) is fixedly mounted inside the secondary handle (2), and a secondary clutch male (20) is fixedly mounted on one side of the inner surface of the square tube (4); A toggle switch (24) is fixedly mounted on the bottom of the inner side of the auxiliary handle (2), a slider (25) is mounted on one end of the toggle switch (24), an anti-locking bead (17) is movably connected to one end of the inner side of the slider (25), and a positioning bead (26) is connected inside the slider (25).

2. A fingerprint door lock according to claim 1, characterized in that: The outer surface of the battery (19) is covered with a battery compartment (21), a first fixed spacer (22) is installed between the battery compartment (21) and the secondary clutch male (20), and one side of the battery (19) is fixedly connected to the battery compartment (21) via a positive electrode spring (23).

3. A fingerprint door lock according to claim 1, characterized in that: A second fixed spacer (27) is fixedly connected to the outer surface of one end of the transmission male clutch (13), and a transmission plate (28) and an auxiliary transmission plate (32) are fixedly mounted inside the front handle (1) and the auxiliary handle (2), respectively.

4. A fingerprint door lock according to claim 1, characterized in that: The transmission male clutch (13) and the secondary clutch male clutch (20) are respectively fixedly connected to the square tube (4) via positioning beads (26).

5. A fingerprint door lock according to claim 3, characterized in that: The outer surfaces of the transmission plate (28) and the auxiliary transmission plate (32) are both clamped with clamping rings (29).

6. A fingerprint door lock according to claim 1, characterized in that: A battery cover (30) is fixedly mounted on the front side of the auxiliary handle (2).

7. A fingerprint door lock according to claim 1, characterized in that: Door thickness positioning holes (31) are provided on both left and right sides of the outer surface of the square tube (4).

8. The fingerprint door lock according to claim 1, characterized in that: A password module (3) is arranged on the front side of the front cover (6).

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