Lockset capable of automatically identifying door opening direction
Technical Field
The invention relates to the field of locks, in particular to a lock capable of automatically identifying a door opening direction.
Background
The intelligent door lock is different from the traditional mechanical lock, and is a lockset which is more intelligent and simplified in the aspects of user safety, identification and manageability. The method adopts the technology of a non-mechanical key to identify the user ID, including fingerprint identification, iris identification, a magnetic card, a radio frequency card, an electronic coded lock and the like.
However, because no mechanical key is provided, the intelligent door lock needs a user to identify the door opening direction, i.e. whether the door is opened left or right, when the intelligent door lock is installed. If the installation method of the left door is used on the right door, the lockset cannot be used normally and can be damaged even.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the lockset capable of automatically identifying the door opening direction, which can automatically identify the door opening direction, greatly reduce the probability of installation errors and can not damage the lockset even if the installation errors occur.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a lock for automatically identifying a door opening direction, comprising a rear panel, further comprising:
a knob linkage assembly carried by the rear panel;
a lock connected to the knob linkage assembly;
The knob reset assembly is connected with the knob linkage assembly and comprises a transmission block and a positioning piece, the transmission block is in linkage with the knob linkage assembly, the positioning piece can rotate relative to the knob linkage assembly, and a torsion spring for linkage between the positioning piece and the transmission block is arranged between the positioning piece and the transmission block;
the driving assembly is carried on the rear panel and used for driving the positioning piece to rotate;
The circuit board is supported on the rear panel, three Hall switches which are arranged in a triangular mode are arranged on the circuit board, and magnets which can be opposite to the Hall switches are arranged on the transmission block;
The travel switch is carried on the rear panel, and the positioning piece is provided with a cam part which can be contacted with the travel switch; and
The starting button, the driving assembly, the Hall switch and the travel switch are all connected with the control unit.
Further, the positioning piece is a driven bevel gear, the driving assembly comprises a motor, and a driving bevel gear meshed with the driven bevel gear is arranged on the motor.
Further, the side wall of the positioning piece is respectively provided with a lantern ring and a limiting arc plate, the torsion spring is sleeved on the lantern ring, and bending parts at two ends of the torsion spring are respectively propped against two ends of the limiting arc plate; the side wall of the transmission block is provided with a limiting clamping plate which can be contacted with the bending part at the end part of the torsion spring.
Further, the magnet is opposite to the limiting clamping plate.
Further, the Hall switch is arranged on the end face, far away from the transmission block, of the circuit board, and a yielding hole opposite to the Hall switch is formed in the circuit board.
Further, the knob linkage assembly comprises a knob, a connecting rod and a connecting strip which are sequentially connected, wherein the connecting rod penetrates through the rear panel, and the connecting strip is connected with the lock.
Further, the lock comprises a lock plate and a lock tongue, the lock plate is connected with the connecting strip in a clamping manner, and the lock plate can drive the lock tongue to reciprocate in the rotation process.
Further, a cross hole matched with the connecting strip is formed in the locking plate.
Further, a limiting arc strip is arranged on the connecting rod, and a limiting boss which can be contacted with the limiting arc strip is arranged on the rear panel; the limiting arc strip is matched with the limiting boss, so that the rotation angle of the knob is limited to 180 degrees.
In summary, the invention has the following beneficial effects:
1. Before installation, a user presses the starting key, and a knob on the lockset can automatically rotate, so that the door opening direction can be identified, and the probability of lockset installation errors is greatly reduced;
2. the torsional spring can play the transmission effect on the one hand, and on the other hand can protect the motor, prevents that the motor from locking.
Drawings
FIG. 1 is a schematic diagram of a lock with automatic door opening direction recognition in an embodiment;
Fig. 2 is a schematic structural diagram of a lock for automatically identifying a door opening direction in the second embodiment;
FIG. 3 is a schematic diagram of a structure of a knob linkage assembly and a knob reset assembly according to an embodiment;
FIG. 4 is a schematic explosion diagram of a lock with automatic door opening direction recognition in an embodiment;
FIG. 5 is a schematic explosion diagram of a lock with automatic door opening direction recognition in an embodiment;
fig. 6 is a schematic structural view of the rear panel in the embodiment.
In the figure: 1. a rear panel; 11. a limit boss; 21. a knob; 22. a connecting rod; 221. limiting arc bars; 23. a connecting strip; 31. a positioning piece; 311. a cam section; 312. a collar; 313. limiting arc plates; 32. a transmission block; 321. a magnet; 322. a limiting clamping plate; 4. a travel switch; 51. a motor; 52. a drive bevel gear; 6. a circuit board; 61. a Hall switch; 71. a locking plate; 711. a cross hole; 72. a bolt; 8. and starting a key.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Examples:
A lock for automatically recognizing a door opening direction, referring to fig. 1 to 4, comprising a rear panel 1, further comprising: a knob linkage assembly carried on the rear panel 1; a lock connected with the knob linkage assembly; the knob reset assembly is connected with the knob linkage assembly, the knob reset assembly comprises a transmission block 32 and a positioning piece 31, the transmission block 32 is linked with the knob linkage assembly, the positioning piece 31 can rotate relative to the knob linkage assembly, and a torsion spring (not shown in the drawing) for linkage of the positioning piece 31 and the transmission block 32 is arranged between the positioning piece 31 and the transmission block 32; a driving assembly carried on the rear panel 1 for driving the positioning member 31 to rotate; the circuit board 6 is loaded on the rear panel 1, three Hall switches 61 which are arranged in a triangular manner are arranged on the circuit board 6, and a magnet 321 which can be opposite to the Hall switches 61 is arranged on the transmission block 32; the travel switch 4 carried on the rear panel 1, and the positioning member 31 is provided with two cam portions 311 capable of contacting the travel switch 4; and, an actuation button 8 and a control unit (not shown in the drawings), the actuation button 8, the drive assembly, the hall switch 61 and the travel switch 4 are all connected to the control unit.
Referring to fig. 1 and 3, the knob linkage assembly comprises a knob 21, a connecting rod 22 and a connecting bar 23 which are sequentially connected, wherein the connecting rod 22 is arranged on the rear panel 1 in a penetrating way, and the connecting bar 23 is connected with the lock catch; the lock comprises a lock plate 71 and a lock tongue 72, wherein the lock plate 71 is in embedded connection with the connecting strip 23, and the lock plate 71 can drive the lock tongue 72 to reciprocate in the rotating process; in this embodiment, the locking plate 71 is provided with a cross hole 711 matching with the connecting bar 23, so that the locking plate 71 and the connecting bar 23 have two mounting directions corresponding to the left door opening and the right door opening respectively.
Referring to fig. 2 and 3, the positioning member 31 is a driven bevel gear in the present embodiment, and the driving assembly includes a motor 51, and a driving bevel gear 52 engaged with the driven bevel gear is disposed on the motor 51; the driving bevel gear 52 is matched with the driven bevel gear, so that the volume of the lockset can be reduced; in this embodiment, the hall switch 61 is disposed on the end surface of the circuit board 6 far away from the transmission block 32, and meanwhile, a yielding hole (not shown in the drawing) opposite to the hall switch 61 is formed on the circuit board 6, and the setting of the yielding hole can ensure stable signal transmission while reducing the volume of the lock; in this embodiment, three hall switches 61 are arranged in an isosceles triangle.
Referring to fig. 3, in this embodiment, the transmission block 32 and the positioning member 31 are both sleeved on the connecting rod 22, where the side wall of the connecting rod 22 contacting with the transmission block 32 is non-cylindrical, so that the transmission block 32 and the connecting rod 22 can realize linkage; the side wall of the connecting rod 22, which is in contact with the positioning piece 31, is a cylindrical surface, so that the positioning piece 31 can rotate relative to the connecting rod 22; in this embodiment, the transmission block 32, the positioning member 31 and the connecting rod 22 are limited by two snap springs, so that the three cannot move relatively along the axial direction.
Referring to fig. 4 and 5, the side wall of the positioning member 31 is respectively provided with a collar 312 and a limiting arc plate 313, a torsion spring (not shown in the drawing) is sleeved on the collar 312, and two end bending parts of the torsion spring respectively prop against two ends of the limiting arc plate 313; the side wall of the transmission block 32 is provided with a limiting clamping plate 322 which can be contacted with the bending part of the end part of the torsion spring, so that the linkage between the positioning piece 31 and the transmission block 32 can be realized through the torsion spring; in this embodiment, the magnet 321 is embedded in the sidewall of the transmission block 32 and is opposite to the limiting clamping plate 322.
Referring to fig. 5 and 6, the connection rod 22 is provided with a limit arc 221, and the rear panel 1 is provided with a limit boss 11 capable of contacting the limit arc 221; the limit arc 221 cooperates with the limit boss 11 to limit the rotation angle of the knob 21 to 180 °, so that the knob 21 includes three states, namely, a vertical state, a clockwise rotation of 90 ° and a counterclockwise rotation of 90 °, so that the knob 21 is in a vertical state.
The working principle is as follows:
before the lockset is installed, the knob 21, the connecting bar 23 and the lock catch are checked, the knob 21 is required to be vertical, the connecting bar 23 is vertical, the lock catch is retracted, and the state is an initial installation state and is also a factory state of the lockset.
When the starting key 8 is pressed, the magnet 321 is opposite to the middle Hall switch 61, and the motor 51 starts to rotate after the middle Hall switch 61 senses the magnet 321; when the motor 51 rotates in one direction, and at this time, the transmission block 32 cannot rotate under the blocking of the lock catch, the motor 51 will continue to rotate, and when the travel switch 4 detects the cam portion 311 on the driven bevel gear, the middle hall switch 61 can still sense the magnet 321, the motor 51 will rotate in the other direction, and the torsion spring will be compressed in the process, so that the motor 51 can be protected.
When the motor 51 rotates in the other direction, the transmission block 32 starts to rotate under the drive of the torsion spring, the locking plate 71 rotates under the drive of the connecting bar 23 to push the locking tongue 72 to extend, and the knob 21 also rotates at the moment, so that the door opening direction can be identified; when the magnet 321 is sensed by the hall switch 61 on one side, the motor 51 stops rotating.