CN108468478A - A kind of fingerprint-based padlock - Google Patents

Abstract

The invention relates to the field of locks, in particular to a fingerprint padlock. Fingerprint padlock, including: controller, fingerprint acquisition module, locking mechanism, electronic lock cylinder for driving the locking mechanism to switch from locked state to unlocked state, and mechanical lock cylinder. The mechanical lock cylinder includes a lock that is allowed to rotate only when the corresponding key is inserted. Core body, characterized in that the fingerprint padlock is also provided with an activation switch connected to the controller, the lock core body is fixed with an activation part, and the lock core body can drive the activation part after being inserted into the corresponding key Move to the activation position, make the activation switch of the activation part realize easy operation, and the padlock itself does not need to add a button interface or communicate with the mobile device, which greatly simplifies the structure of the fingerprint padlock.

Description

A fingerprint padlock

technical field

The invention relates to the field of locks, in particular to a fingerprint padlock.

Background technique

Fingerprint padlock is the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology. The characteristics of fingerprints have become the most important evidence for identification and are widely used in public security criminal investigation and judicial fields. Fingerprint authentication has the characteristics of convenience, speed and precision. With the popularization of technology and the development of smart homes, more and more people have begun to choose fingerprint locks.

It is more and more widely used in locks, and the combination of fingerprint recognition and padlocks has gradually entered people's lives. Fingerprint management usually involves working states such as fingerprint registration, fingerprint recognition, and fingerprint template deletion. These workflows are all realized through fingerprint management circuits. What kind of working status is extremely important for user operation. At present, fingerprint padlocks usually use methods such as pressing a specific button on the surface of the padlock or using an App on a mobile device to achieve status detection. Such setting makes the structure of the lock body itself complicated, and the operation process of the user also becomes complicated simultaneously, and the experience is not ideal.

There are two types of authentication fingerprint collection for common fingerprint padlocks, one is to switch the fingerprint padlock to the setting state registration state and set it by password. Due to the small size of the fingerprint padlock, the number of buttons is generally set less. At the same time, because the buttons need to be provided with corresponding windows on the lock body, more buttons are not only complicated in structure and high in cost, but also reduce the strength of the lock body of the fingerprint padlock. The housing of the fingerprint padlock is destroyed arbitrarily.

The other is to connect the fingerprint padlock with other devices through the data cable, and switch to the setting state registration state for setting after inputting the corresponding password. In this way, adding or deleting fingerprints depends on other devices, and it is very troublesome to set up fingerprints.

The existing fingerprint padlock has a complex structure or is inconvenient to use.

Contents of the invention

The purpose of the present invention is to provide a fingerprint padlock with few keys and can complete the fingerprint setting without relying on other devices.

In order to achieve the above object, a fingerprint padlock provided by the present invention includes: a controller, a fingerprint collection module, a locking mechanism, an electronic lock cylinder for driving the locking mechanism to switch from a locked state to an unlocked state, and a mechanical lock cylinder. The lock cylinder includes a lock cylinder body that is allowed to rotate only when the corresponding key is inserted. It is characterized in that the fingerprint padlock is also provided with an activation switch connected to the controller, and the lock cylinder body is fixed with an activation part. After the main body is inserted into the corresponding key, the activation part can be driven to move to the activation position, so that the activation part activates the activation switch.

In one embodiment of the present invention, the lock cylinder body can rotate from a locked position corresponding to the locked state of the fingerprint padlock to an unlocked position corresponding to the locked state of the fingerprint padlock, and the activation position and the unlocked position on either side of the locked position.

In one embodiment of the present invention, the controller is connected with keys.

In one embodiment of the present invention, the fingerprint padlock is provided with a first prompt light and a second prompt light connected to the controller.

In one embodiment of the present invention, the fingerprint collection module is connected with the controller.

In one embodiment of the present invention, the mechanical lock cylinder includes a tumbler lock cylinder or a blade lock cylinder.

In one embodiment of the present invention, the electronic lock cylinder includes a motor or an electromagnet.

In one embodiment of the present invention, the fingerprint padlock further includes a lock beam, and the lock beam is provided with a cooperating recess cooperating with the locking mechanism.

In one embodiment of the present invention, the locking mechanism includes a rotating post, a steel ball partially accommodated in the fitting recess, and the rotating post has a protruding portion for constraining the steel ball in the fitting recess and a notch part for the steel ball to break away from the mating recessed space; the electronic lock core and the mechanical lock core are respectively used to drive the rotation column from the rotation column from the protruding part toward the steel ball The locked position is rotated to the unlocked position where the notch is facing the steel ball, so as to allow the steel ball to be completely separated from the matching recess.

In one embodiment of the present invention, the locking mechanism is a lock tongue, and the lock tongue is provided with a first matching portion and a second matching portion respectively corresponding to the electronic lock cylinder and the mechanical lock cylinder.

In the present invention, the fingerprint padlock is easy to operate, and the user experience is ideal, and the padlock itself does not need to add a button interface or communicate with a mobile device, which greatly simplifies the structure of the fingerprint padlock.

Description of drawings

FIG. 1 is a schematic structural diagram of a fingerprint padlock according to a first embodiment of the present invention.

Figure 2 is an exploded view of the fingerprint padlock shown in Figure 1 .

FIG. 3 is a cross-sectional view of the fingerprint padlock shown in FIG. 1 .

Fig. 4 shows the bottom view of the partition of the fingerprint padlock of Fig. 1 .

FIG. 5 is a schematic diagram of the structure of the rotating column body of the fingerprint padlock shown in FIG. 1 .

FIG. 6 is a bottom view of the rotating column body in FIG. 5 .

FIG. 7 is a schematic structural diagram of the driven tooth fixed shaft of the fingerprint padlock in FIG. 1 .

Fig. 8 is a bottom view of the fixed shaft of the driven tooth in Fig. 7 .

Fig. 9 is a schematic diagram showing the cooperation between the rotating column body and the steel ball in Fig. 1 .

FIG. 10 is a schematic structural view of the mechanical lock cylinder of the fingerprint padlock shown in FIG. 1 .

FIG. 11 is a schematic structural diagram of a fingerprint padlock according to a second embodiment of the present invention.

Fig. 12 is a schematic diagram of the fingerprint setting of the fingerprint padlock of the present invention.

Fig. 13 is a schematic flowchart of the fingerprint setting of the fingerprint padlock of the present invention.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Please refer to Fig. 1-3, the fingerprint padlock of the first embodiment of the present invention includes: U-shaped lock beam 1, lock body 2, locking mechanism 3, controller 4, electronic lock cylinder 5, mechanical lock cylinder 6, fingerprint collection module 7.

The lock beam 1 and the lock body 2 realize the locking or unlocking of the padlock through cooperation. The locking mechanism 3 , the controller 4 , the electronic lock core 5 , the mechanical lock core 6 , and the fingerprint collection module 7 are all accommodated in the lock body 2 .

The locking mechanism 3 includes a rotating post 31 and a steel ball 32 that can be partially accommodated in the matching recess.

There are two steel balls 32 , and the rotating column 31 is located between the two steel balls 32 .

The lock beam 1 is provided with a matching recess 10 corresponding to the steel ball 32 , and preferably there is a lock beam compression spring 1t between the lock beam 1 and the lock body 2 . The lock beam 1 includes a long lock bar 11 , an arc-shaped connecting bar 12 and a short lock bar 13 .

The lock body 2 includes a lock case 21 , a partition 22 , a mounting frame 23 , a backing plate 24 , and a lock cover 25 .

The lock case 21 and the lock cover 25 form a closed space, and the lock case 21 is provided with a window 210 corresponding to the fingerprint collection module 7 .

Referring to FIG. 4 , the partition plate 22 is used to install the rotating column 31 and determine the axial position of the rotating column 31 . The partition plate 22 is provided with a limit matching portion 221 for cooperating with the rotation limit portion 312a. The partition 22 is further provided with a positioning post 223 , a positioning slot 224 and a through hole 225 . The positioning post 223 is used for installing the torsion spring 3t. The positioning slot 224 is used for receiving the fixed shaft 312 of the driven gear. The through hole 224 allows the circular segment-shaped connecting end 311 a of the rotating column 31 to pass through.

Referring to FIGS. 5-8 , the rotating column 31 includes a rotating column main body 311 and a driven tooth fixed shaft 312 passing through the partition 22 .

The outer peripheral surface of the driven tooth fixing shaft 312 has a rotation limiting portion 312 a corresponding to the limiting matching portion 221 , a first driven tooth 312 b, and a second driven tooth 312 c. When the rotation limit portion 312 a abuts against the limit fitting portion 221 , the steel ball 32 engages with the recess 10 .

The first driven teeth 312b and the second driven teeth 312c have 2-3 teeth respectively. Preferably, 2 teeth are selected.

When the rotation limiting portion 312 a abuts against the limiting matching portion 221 , the rotating column 31 is in the locked position, and when the rotating limiting portion 312 a is away from the limiting matching portion 221 , the rotating column 31 is in the unlocking position.

The rotating column body 311 has a circular segment-shaped connection end 311a inserted into the driven tooth fixed shaft 312. The driven tooth fixed shaft 312 has a socket 312d corresponding to the circular segment-shaped connection end 311a. The end surface of the circular segment-shaped connection end 311a is provided with The connection screw hole 311b and the insertion hole 312d have a connection through hole 312e corresponding to the connection screw hole 311b, and the circular segment-shaped connection end 311a is connected and fixed to the fixed shaft 312 of the driven tooth by a connection bolt.

The rotating column main body 311 also has a protruding portion 311c for confining the steel ball 32 in the fitting recess 10 and a notch portion 311d for providing a space for the steel ball 32 to disengage from the fitting recess 10; the rotating column main body 311 is provided with a shaft hole 311e , the lock housing 21 has a rotating shaft 211 accommodated in the rotating shaft hole 311e, and the rotating shaft 211 is used to hold the rotating axis of the rotating post 31.

Referring to FIG. 9 , the protruding portion 311c is an arc-shaped surface surrounding the rotation axis C of the rotation column 31 . When the protruding part 311c is facing the steel ball 32, the center A of the steel ball 32, E, the contact points B, D, and the rotation axis C of the protruding part 311c and the steel ball are on the same plane, which is to ensure that the padlock is in the locked state Next, when the lock beam is violently pulled upwards, the pressure direction of the steel ball on the rotating column is towards the rotation axis C, preventing the rotating column from rotating under the pressure of the steel ball.

The torsion spring 3t is located between the partition plate 22 and the rotating post 31 , one end is fixed with the positioning post 223 , and the other end is fixed with the circular connecting end 311 a to keep the rotating post 31 in a locked position. The torsion spring 3t is also used to drive the rotating column 31 to rotate from the unlocked position to the locked position, so that the engagement of the steel ball 32 fits the recess 10 to realize the locking of the lock body 2 and the lock beam 1 .

The controller 4 is connected with an activation switch 41 , a button 42 , a first prompt light 43 , and a second prompt light 44 .

The activation switch 41 is a light touch switch. When in use, the switch is pressed in the direction of the switch operation to meet the operating force. The switch function is closed and turned on. When the pressure is removed, the switch is turned off. broken. The activation switch 41 is installed on the mounting frame 23. When the activation switch 41 is not triggered, the fingerprint padlock is in the working state, and when the activation switch 41 is triggered, the fingerprint padlock enters the setting state.

The number of keystrokes of the key 42 corresponds to the location where the fingerprint is stored. For example, pressing once corresponds to fingerprint No. 1, pressing twice corresponds to fingerprint No. 2, and so on.

The colors of the first prompt light 43 and the second prompt light 44 are different. The first prompting light 43 and the second prompting light 44 are used to prompt the success or failure of adding and deleting fingerprints. Preferably, the first prompt light 43 is a blue prompt light, and the second prompt light 44 is a red prompt light.

The electronic lock cylinder 5 includes a motor or an electromagnet. The mechanical lock core 6 is a pin lock core or a blade lock core. The mechanical lock cylinder 6 includes a lock cylinder body 60, and the lock cylinder body 60 is allowed to rotate only when a corresponding key is inserted.

The electronic lock cylinder 5 and the mechanical lock cylinder 6 are used to drive the locking mechanism to switch from the locked state to the unlocked state. Drive the rotating column 31 to rotate from the locking position where the protruding portion 311c faces the steel ball 32 to the unlocking position where the notch portion 311d faces the steel ball 32 , so as to allow the steel ball 32 to be completely separated from the mating recess 10 .

Specifically, the electronic lock cylinder 5 drives and rotates the first driving tooth 51 , and the lock cylinder body 60 of the mechanical lock cylinder 6 drives and rotates the second driving tooth 61 . The first driving tooth 51 cooperates with the first driven tooth 312b to make the rotating column 31 rotate from the locking position where the protruding portion 311c faces the steel ball 32 to the unlocking position where the notch portion 311d faces the steel ball 32 . The second driving tooth 61 cooperates with the second driven tooth 312c to make the rotating column 31 rotate from the locking position where the protruding portion 311c faces the steel ball 32 to the unlocking position where the notch portion 311d faces the steel ball 32 . In order to allow the steel ball 32 to be completely separated from the matching recess 10 .

Please refer to FIG. 10 , the lock cylinder body 60 is fixed with an activation part 62 , the activation part 62 is a protruding structure, and the activation part 62 can rotate toward the activation switch 41 to activate the activation position of the activation switch 41 after the lock cylinder body 60 is inserted into the corresponding key. , you can enter the setting state.

Fingerprint collecting module 7 is used for adding fingerprint and fingerprint unlocking. The fingerprint collection module 7 is connected with the controller 4 .

Please refer to Fig. 11, in the second embodiment of the present invention, the locking mechanism 3 is a deadbolt, and the deadbolt includes a rod body 3a perpendicular to the long lock rod 11, and the side of the rod body 3a facing away from the connecting rod 12 is fixed with the first rotating column 51. The first matching part 32 and the second matching part 33 corresponding to the second rotating column 61, the rod body 3a is also fixed with a spring abutting part 31, and a locking compression spring 30 is located between the spring abutting part 31 and the lock body. The cross section of the rod body 3a is rectangular. The spring abutting portion 31 is a plate-like structure perpendicular to the rod body 3a. The first matching portion 32 and the second matching portion 33 are plate-shaped structures perpendicular to the rod body 3a.

The long lock bar 11 is provided with a first notch 111 for accommodating part of the bar body 3a, and the long lock bar 11 is also provided with a second notch 112 . The side wall of the first notch 111 away from the connecting rod 12 is a plane perpendicular to the long locking rod 11 . The shape of the first notch 111 is a cylindrical opening parallel to the long locking bar 11 .

The lock body 2 is fixed with a limiting portion 26 accommodated in the second notch 112. When the second notch 112 is in contact with the limiting portion 26 near the side wall of the connecting rod 12, the position of the rod body 3a corresponds to the position of the first notch 111. .

The activation switch 41 is a Hall proximity switch, also called a magnetic proximity switch or a Hall switch. When a magnetic object moves close to the Hall switch, the Hall element on the detection surface of the switch will cause the state of the internal circuit of the switch to change due to the Hall effect, thereby identifying the presence of a magnetic object nearby, and then controlling the switch to be turned on or off. The detection object of this proximity switch must be a magnetic object. The excitation part 62 is therefore a magnet.

Please refer to Fig. 12-13, the authentication fingerprint setting method of the fingerprint padlock according to the first embodiment of the present invention includes:

A101. Insert the corresponding key into the lock cylinder body to allow the lock cylinder body to rotate;

B101. Twist the lock cylinder body so that the activation part of the lock cylinder body rotates toward the activation switch to the activation position where the activation switch is activated;

C101, the controller switches to the setting state after the trigger switch is touched;

D101. The controller saves the fingerprint information collected in the setting state as authentication fingerprint information, and numbers the authentication fingerprint information according to the number of presses of the keys;

D102. Pressing the button for a first set time value causes the controller to enter the deletion state, and the controller deletes the authentication fingerprint information of the corresponding number according to the number of times the button is pressed in the deletion state; the first The set time value can be 2 seconds, 5 seconds, 20 seconds.

E101. Twisting the lock cylinder body to separate the activation part from the activation switch, and the controller switches to the working state after the activation part is separated from the activation switch.

The step C101 further includes the controller switching to the setting state after the activation switch is touched for a second set time value. The second set time value may be 2 seconds, 5 seconds, or 20 seconds.

Preferably, D101 further includes: after the fingerprint information is saved as authentication fingerprint information, the first prompt light is controlled to blink, and the first prompt light blinks a number of times corresponding to the serial number.

The authentication fingerprint setting method of the fingerprint padlock of the second embodiment of the present invention comprises:

A200. Press the fingerprint collection module with your finger, the controller enters the state to be set, and the controller can control the first indicator light and/or the second indicator light to work;

A201. Insert the corresponding key into the lock cylinder body to allow the lock cylinder body to rotate;

B201. In the state to be set, twist the lock cylinder body, so that the activation part of the lock cylinder body rotates toward the activation switch to the activation position for activating the activation switch;

C201. The controller switches to the setting state after the activation switch is touched;

C201a. The controller saves the fingerprint information collected in the setting state as authentication fingerprint information, and numbers the authentication fingerprint information according to the number of presses of the button; for example, pressing the button once corresponds to position one, and pressing the button twice corresponds to position Second, by analogy, up to 10 fingerprints can be stored.

C201b. After pressing the button for about 2 seconds, the number of flashes of the blue first reminder light is equal to the storage position.

C201c. If the number of key presses is 1 to 5 times, the blue first prompt light will flash the corresponding number of key presses every 2 seconds, indicating the corresponding location of the current fingerprint storage. If the number of key presses is 6 to 10 times, the blue first prompt light will be on for 1.5 seconds, and then flash every 1 second for the number of times the corresponding key press number is minus 5, that is, if the number of input times is 6 times, the blue first indicator light will The prompt light will be on for 1.5 seconds, then flash once every 1 second, and so on.

D201. Press the finger on the fingerprint collection module 7, remove the finger after the first blue indicator light is on, and the blue indicator light is off;

E201. Repeat step C201 4 times until the first blue prompt light is on and then flashes, indicating that the fingerprint is added successfully.

F201. Twist the body of the lock cylinder to separate the activation part from the activation switch, and switch to the working state after the activation part is separated from the activation switch.

The authentication fingerprint setting method of the fingerprint padlock of the third embodiment of the present invention comprises:

A300. Press the fingerprint collection module with your finger, the controller enters the state to be set, and the controller can control the first indicator light and/or the second indicator light to work;

A301. Insert the corresponding key into the lock cylinder body to allow the lock cylinder body to rotate;

B301. In the state to be set, twist the lock cylinder body, so that the activation part of the lock cylinder body rotates toward the activation switch to the activation position for activating the activation switch;

C301. The controller switches to the setting state after the activation switch is touched;

D301. Pressing the button for a first set time value causes the controller to enter a deletion state, and the controller deletes the authentication fingerprint information of the corresponding number according to the number of times the button is pressed in the deletion state;

D301a. If you press and hold the button for about 10 seconds until the second red prompt light is on, release the button to enter the delete state.

D301b. For example, pressing the button once corresponds to position 1, and pressing the button twice corresponds to position 2, and so on.

D301c. After pressing the button for 2 seconds, the number of flashes of the red prompt light is equal to the deletion position.

D301d. If the number of key presses is 1 to 5 times, the red prompt light will flash the corresponding number of key presses every 2 seconds, indicating the corresponding location where the fingerprint is currently deleted. If the number of key presses is 6 to 10 times, the red prompt light will be on for 1.5 seconds, and then flash every 1 second for the number of key presses minus 5, that is, if the number of deletions is 6 times, the red prompt light will be on for 1.5 seconds Seconds later, it flashes once every 1 second, and so on.

E301, the red prompt light flashes for 8 seconds, stays on for 5 seconds, and then turns off, indicating that the fingerprint deletion is completed.

F301. Twisting the body of the lock cylinder to separate the activation part from the activation switch, and the controller switches to the working state after the activation part is separated from the activation switch.

At any time, if you want to exit the setting state or exit the current operation such as terminating fingerprint entry or deletion, just turn the key back to the initial position.

In other embodiments of the present invention, A200 and A201 of the fingerprint padlock authentication fingerprint setting method can be interchanged. A300 and A301 are interchangeable.

In the present invention, the fingerprint padlock is easy to operate, and the user experience is ideal, and the padlock itself does not need to add a button interface or communicate with a mobile device, which greatly simplifies the structure of the fingerprint padlock.

Compared with the padlock that sets the fingerprint through the data line, this application does not rely on other devices, and does not need a password. The user can directly write or delete the authentication fingerprint, which is convenient to use.

Compared with a padlock that uses a password to switch the fingerprint padlock to the setting state and registration state, this application does not require a password input keyboard, let alone a password. The padlock has a simple structure, low cost, and is very convenient to use.

In addition, only the mechanical lock cylinder of this application can activate the activation switch, and the key of the mechanical lock cylinder becomes the set key. Users only have access rights. For example, the manager of the fingerprint padlock can hold the mechanical key, add the fingerprints of new employees, and delete the fingerprints of resigned employees.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any skilled person familiar with the profession , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technical essence of the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. a kind of fingerprint-based padlock, including：Controller, finger print acquisition module, locking mechanism, for driving the locking mechanism from locking State is switched to the electronic lock cylinder of unlocked state, mechanical lock, which includes being inserted into corresponding key just to allow rotation Plug body, which is characterized in that the fingerprint-based padlock is additionally provided with the exciting switch being connect with the controller, the plug body It is fixed with excitation portion, which can drive the excitation portion to be moved to excitation position after being inserted into corresponding key, make this Excitation portion excites the exciting switch.

2. fingerprint-based padlock according to claim 1, which is characterized in that the plug body can from the fingerprint-based padlock The corresponding latched position of lock-out state rotates to unlocked position corresponding with the fingerprint-based padlock lock-out state, the excitation position It is located at the latched position both sides with the unlocked position.

3. fingerprint-based padlock according to claim 1, which is characterized in that the controller is connected with button.

4. fingerprint-based padlock according to claim 1, which is characterized in that the fingerprint-based padlock is equipped with and is connect with the controller The first warning light, the second warning light.

5. fingerprint-based padlock according to claim 1, which is characterized in that the finger print acquisition module connects with the controller It connects.

6. fingerprint-based padlock according to claim 1, which is characterized in that the mechanical lock is lock cylinder or blade lock Core.

7. fingerprint-based padlock according to claim 1, which is characterized in that the electronic lock cylinder includes motor or electromagnet.

8. fingerprint-based padlock according to any one of claims 1-7, which is characterized in that the fingerprint-based padlock further includes lock Beam, the lock bridge are equipped with the cooperation coordinated with the locking mechanism and are recessed.

9. fingerprint-based padlock according to claim 8, which is characterized in that the locking mechanism includes Rotational Cylindrical, can partly hold The steel ball being contained in the cooperation recess, the Rotational Cylindrical have the protrusion part for being limited in the steel ball in cooperation recess With the barbed portion for providing the disengaging cooperation dented space for the steel ball；The electronic lock cylinder and mechanical lock difference Latched position for driving the Rotational Cylindrical to be partially toward from the Rotational Cylindrical from the protrusion steel ball turns to the barbed portion Towards the unlocked position of the steel ball, it is kept completely separate with allowing the steel ball to be recessed with the cooperation.

10. fingerprint-based padlock according to claim 1, which is characterized in that the locking mechanism is lock tongue, and the lock tongue is equipped with The first auxiliary section corresponding with the electronic lock cylinder, the mechanical lock and the second auxiliary section.