A smart door lock

Abstract

The present invention discloses an intelligent door lock, comprising a lock body; the lock body comprises a lock shell, a lock tongue mechanism, a block and an unlocking mechanism arranged in the lock shell; the lock tongue mechanism comprises a lock plate and a lock rod; the lock plate can be arranged in the lock shell so as to move up and down, and a lock hole is arranged on the lock plate, and one end of the lock plate is connected to one end of a spring; one end of the lock rod sequentially passes through one side of the lock shell, the lock hole and the other side of the lock shell and then cooperates with the block to be locked, and a lock groove that cooperates with the lock plate to be locked is arranged on the lock rod; the unlocking mechanism is used to drive the lock plate to move upward to realize unlocking, and the spring is used to reset the lock plate. The present invention has the advantages of simple and reasonable structure, convenient production and assembly, low production cost and reliable performance. The present invention can realize convenient unlocking and locking through the cooperation between the lock plate and the lock rod.

Description

Technical Field

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

[0002] Smart door locks are improved upon traditional mechanical locks and are more intelligent and simple in terms of user security, identification, and management. Smart door locks are different from traditional mechanical locks. They are composite locks with security, convenience, and advanced technology. Smart door locks often have fingerprint, iris, or QR code recognition and other identification functions. These technologies are highly secure and will not be lost or damaged. Currently, smart door locks are generally more expensive and have a more complex internal structure, which makes the equipment easily damaged and more troublesome to assemble and maintain. Summary of the invention

[0003] In view of the problems existing in the above prior art, the purpose of the present invention is to provide a smart door lock, which has a simple and reasonable structure, is convenient for production and assembly, and has low production cost. At the same time, it also has the advantages of being not easy to damage and having reliable performance.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A smart door lock comprises a lock body; the lock body comprises a lock shell, a lock tongue mechanism, a block and an unlocking mechanism arranged in the lock shell; the lock tongue mechanism comprises a lock plate and a lock rod; the lock plate can be arranged in the lock shell so as to move up and down and a lock hole is provided on the lock plate, one end of the lock plate is connected to one end of a spring; one end of the lock rod passes through one side of the lock shell, the lock hole and the other side of the lock shell in sequence and then cooperates with the block to be positioned, and the lock rod is provided with a lock groove that cooperates with the lock plate to be positioned; the unlocking mechanism is used to drive the lock plate to move upward to achieve unlocking, and the spring is used to reset the lock plate.

[0006] The additional structure of the above technical solution also includes the following solutions:

[0007] As a specific embodiment, the unlocking mechanism includes an electronic unlocking mechanism; the electronic unlocking mechanism includes a motor; a transmission wheel is provided on the output shaft of the motor, an eccentric rod is provided on the transmission wheel, and the eccentric rod cooperates with a movable hole on the locking plate to drive the locking plate to move upward.

[0008] Furthermore, the electronic unlocking mechanism also includes a travel switch arranged outside one end of the locking plate and cooperating with the locking plate; when the locking plate presses the travel switch, the motor stops rotating.

[0009] As a specific embodiment, the unlocking mechanism also includes a mechanical unlocking mechanism, which includes a telescopic lock core; the telescopic lock core is arranged outside one end of the lock plate, and the push rod of the telescopic lock core is against the lock plate; the lock plate is driven to move upward by the push rod of the telescopic lock core to achieve unlocking.

[0010] As a specific embodiment, the locking piece is arranged at a middle position between the left and right sides of the lock housing, so that one end of the locking rod can be inserted into the lock housing from left to right or from right to left.

[0011] Furthermore, the smart door lock also includes a first magnet arranged on the lock rod, and a first sensor and a second sensor arranged in the lock housing and correspondingly cooperating with the first magnet; the first magnet is arranged on the end of the lock rod away from the block; when the lock rod is inserted into the lock housing from left to right, the first magnet can be sensed by the first sensor; when the lock rod is inserted into the lock housing from right to left, the first magnet can be sensed by the second sensor.

[0012] Furthermore, the smart door lock also includes a second magnet and a third magnet which are arranged on the block and are symmetrically arranged up and down, and a third sensor and a fourth sensor which are arranged in the lock shell and correspondingly cooperate with the second magnet and the third magnet; when the lock rod is inserted into the lock shell from left to right, the second magnet can be sensed by the third sensor; when the lock rod is inserted into the lock shell from right to left, the third magnet can be sensed by the fourth sensor.

[0013] As a specific embodiment, a limit stopper located in the lock housing and used to prevent the lock rod from being separated from the lock housing is detachably provided on the lock rod.

[0014] As a specific embodiment, a protection box is provided in the lock housing, the motor is arranged in the protection box, and a through hole for passing the output shaft of the motor is provided on the protection box.

[0015] As a specific embodiment, a curved plate extending downward and outward is provided at the bottom of the front side of the lock housing.

[0016] The beneficial effects of the present invention are:

[0017] (1) The present invention has a simple and reasonable structure, is easy to produce and assemble, and has a low production cost. At the same time, it also has the advantages of being not easy to damage and having reliable performance.

[0018] (2) The present invention can realize convenient unlocking and locking through the cooperation between the lock plate and the lock rod.

[0019] (3) The electronic unlocking mechanism and the mechanical unlocking mechanism of the present invention share the same lock plate and do not interfere with each other, thereby realizing electronic switch lock and mechanical switch lock.

[0020] (4) The present invention enables the lock rod to be used in a reverse direction by arranging the lock plate in the middle position between the left and right sides of the lock housing, thereby enabling people to install the smart door lock on doors that open in different directions.

[0021] (5) The present invention arranges a first magnet on the lock rod, and arranges a first sensor and a second sensor in the lock housing so that the first magnet can be sensed by the sensor even after the direction is changed, thereby preventing the loss of function of the smart door lock.

[0022] (6) The present invention arranges the second magnet and the third magnet on the block, and arranges the third sensor and the fourth sensor in the lock housing, so that the second magnet and the third magnet can be sensed by the sensor even after the directions are reversed, thereby preventing the loss of functions of the smart door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is an exploded view of the present invention;

[0025] Figure 3 It is a local structure of the present invention Figure 1 ;

[0026] Figure 4 It is a local structure of the present invention Figure 2 ;

[0027] Figure 5 is a schematic structural diagram of a locking rod of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the locking piece of the present invention.

[0029] Reference numerals:

[0030] 1. Lock housing; 2. Lock tongue mechanism; 21. Lock plate; 211. Lock hole; 212. Movable hole; 213. Limiting part; 22. Lock rod; 221. Lock slot; 3. Block; 4. Spring; 5. Motor; 51. Drive wheel; 6. Travel switch; 7. Telescopic lock cylinder; 8. First magnet; 9. First sensor; 10. Second sensor; 11. Second magnet; 12. Third magnet; 13. Third sensor; 14. Fourth sensor; 15. Limiting block; 16. Protection box; 17. Arc plate; 18. Circuit board; 19. Lock rod head. DETAILED DESCRIPTION

[0031] The invention is further described below in conjunction with the accompanying drawings and specific embodiments. The following description is only exemplary and does not limit the protection scope of the invention.

[0032] like Figure 1-Figure 6 As shown, a smart door lock includes a lock body, which includes a lock shell 1, a lock tongue mechanism 2, a block 3 and an unlocking mechanism arranged in the lock shell 1; the lock tongue mechanism 2 includes a lock plate 21 and a lock rod 22; the lock plate 21 is arranged in the lock shell 1 so as to be movable up and down and a lock hole 211 is arranged on the lock plate 21, one end of the lock plate 21 is connected to one end of a spring 4, specifically, the lower end of the lock plate 21 is connected to the upper end of the spring 4, but those skilled in the art should know that a spring plate can also be separately arranged above the lock plate 21, This can also achieve the same effect as the spring 4; one end of the lock rod 22 passes through one side of the lock shell 1, the lock hole 211 and the other side of the lock shell 1 in sequence, and then cooperates with the block 3 to lock the door, and a lock groove 221 is provided on the lock rod 22 to cooperate with the lock plate 21; specifically, a through hole for the lock rod 22 to pass through is provided on the lock shell 1, and a plug hole corresponding to the lock rod 22 is also provided on the block 3; the unlocking mechanism is used to drive the lock plate 21 to move upward to unlock, and the spring 4 is used to reset the lock plate 21. It should be noted that the unlocking after the lock plate 21 moves upward is only for the convenience of description, and is not used to limit the lock plate 21 to only move upward to unlock, and it can also be set to unlock after moving downward, of course, it can also be other directions.

[0033] The unlocking mechanism includes an electronic unlocking mechanism; the electronic unlocking mechanism includes a motor 5; a transmission wheel 51 is provided on the output shaft of the motor 5, an eccentric rod is provided on the transmission wheel 51, and the eccentric rod cooperates with a movable hole 212 on the lock plate 21 to drive the lock plate 21 to move upward, and the distance between the upper and lower sides of the movable hole 212 is greater than the diameter of the eccentric rod; a limiting portion 213 is protruded on the front end face and the rear end face of the lock plate 21 respectively; two limiting grooves (not shown in the figure) that cooperate with the limiting portion 213 are provided in the lock housing 1, so that the lock plate 21 is more stable when moving and will not deviate from the preset route. Specifically, the two limiting grooves are respectively arranged on two limiting plates, and the two limiting portions 213 are correspondingly inserted into the two limiting grooves. After the user has identified his identity through the QR code, the control system controls the motor 5 to drive the locking plate 21 to move upward through the transmission wheel 51, so that the locking plate 21 is separated from the locking rod 22 and the spring 4 is stretched. In this way, the locking rod 22 can be smoothly pulled outward and the locking rod 22 is also separated from the block 3, thus completing the unlocking; when closing the lock, the locking rod 22 is inserted into the block 3, and then the motor 5 is reset, resulting in no force pushing the locking plate 21, causing the spring 4 to contract and drive the locking plate 21 to reset. After the locking plate 21 is reset, the locking plate 21 is just stuck in the lock slot 221, thus completing the locking.

[0034] like Figure 4 As shown, the electronic unlocking mechanism also includes a travel switch 6 disposed outside one end of the lock plate 21 and cooperating with the lock plate 21; when the lock plate 21 presses the travel switch 6, the motor 5 stops rotating. Specifically, when the lock plate 21 presses the travel switch 6 during the upward movement of the lock plate 21, the motor 5 stops.

[0035] like Figure 3 and Figure 4 As shown, the unlocking mechanism also includes a mechanical unlocking mechanism arranged in the lock shell 1, and the mechanical unlocking mechanism includes a telescopic lock core 7; the telescopic lock core 7 is arranged outside one end of the lock plate 21, specifically, the telescopic lock core 7 is arranged below the lock plate 21, the push rod of the telescopic lock core 7 is against the lock plate 21, and the keyhole of the telescopic lock core 7 is located at the bottom of the lock shell 1; the lock plate 21 is driven to move upward by the push rod of the telescopic lock core 7 to achieve unlocking, and when the push rod is reset, the lock plate 21 is also reset by the spring 4, thereby achieving locking.

[0036] like Figure 3 and Figure 4 As shown, the lock plate 21 is arranged in the middle position between the left and right sides of the lock housing 1, so that one end of the lock rod 22 can be inserted into the lock housing 1 from left to right or from right to left. The above arrangement enables the intelligent door lock of the present invention to be applicable to doors that open in the left direction or the right direction. Specifically, when changing the position of the door lock, the lock rod 22 is removed and then inserted into the lock housing 1 and the lock plate 21 in the other direction. Then, the stopper 3 is removed and adjusted to the direction of the corresponding lock rod 22. The above design enables the use of the present invention to be wider. A smart door lock can be used on doors that open in two different directions. It is very practical and allows people to reuse it when changing doors that open in different directions, saving the cost of changing door locks.

[0037] like Figure 3As shown, the smart door lock also includes a first magnet 8 arranged on the lock rod 22, and a first sensor 9 and a second sensor 10 arranged in the lock housing 1 and correspondingly cooperating with the first magnet 8; when the lock rod 22 is inserted into the lock housing 1 from left to right, the first magnet 8 can be sensed by the first sensor 9; when the lock rod 22 is inserted into the lock housing 1 from right to left, the first magnet 8 can be sensed by the second sensor 10; specifically, the first magnet 8 is arranged on the end of the lock rod 22 away from the block 3; the first sensor 9 and the second sensor 10 are symmetrically arranged along the left-right direction. By setting a magnet and a sensor, it can be used to sense whether the lock rod 22 is accurately inserted into the block 3; the specific working method is that in the process of closing the door lock, when the lock rod 22 is inserted into the lock housing 1 from left to right and one end of the lock rod 22 is accurately inserted into the block 3, the first magnet 8 is just sensed by the first sensor 9, and then the motor 5 is reset, so that the spring 4 drives the lock plate 21 to reset and engage with the lock rod 22, thereby completing the lock; when the lock rod 22 is inserted into the lock housing 1 from right to left and one end of the lock rod 22 is accurately inserted into the block 3, the first magnet 8 is just sensed by the second sensor 10, and the motor 5 is reset, so that the spring 4 drives the lock plate 21 to reset and engage with the lock rod 22, thereby completing the lock; when the lock rod 22 is not engaged with the block 3 for a certain period of time, the control system sends a prompt message to the user's device, prompting the user to lock the door lock, which can also prevent the occurrence of a false lock (that is, the lock rod 22 is not engaged with the block 3). Therefore, by providing the first magnet 8, the first sensor 9 and the second sensor 10, it can be ensured that the smart door lock will not lack some functions after the lock rod 22 is changed in direction for use, that is, the above settings ensure the normal use of the smart door lock.

[0038] like Figure 3As shown, the smart door lock also includes a second magnet 11 and a third magnet 12 which are arranged on the block 3 and are symmetrically arranged up and down, and a third sensor 13 and a fourth sensor 14 which are arranged in the lock shell 1 and correspondingly cooperate with the second magnet 11 and the third magnet 12; when the lock rod 22 is inserted into the lock shell 1 from left to right, the second magnet 11 can be sensed by the third sensor 13; when the lock rod 22 is inserted into the lock shell 1 from right to left, the third magnet 12 can be sensed by the fourth sensor 14; specifically, the third sensor 13 and the fourth sensor 14 are symmetrically arranged left and right. When in use, the lock housing 1 is installed on the door leaf, and the stopper 3 is installed on the door frame; when the lock rod 22 is inserted into the lock housing 1 from left to right, the stopper 3 is located on the right side of the lock housing 1, and the second magnet 11 is located above the third magnet 12 and the second magnet 11 is close to the third sensor 13. When the door leaf moves toward the door frame and the door leaf is accurately aligned with the door frame, the second magnet 11 is just sensed by the third sensor 13, and then the lock rod 22 can be inserted. When the third sensor 13 cannot sense the second magnet 11 and this situation lasts for a certain period of time, the control system sends a prompt message to the user's device, prompting The door leaf is not closed properly; when the lock rod 22 is inserted into the lock housing 1 from right to left, the stopper 3 is located on the left side of the lock housing 1. At this time, the stopper 3 is set by turning 180° so that the third magnet 12 is located above the second magnet 11 and the third magnet 12 is close to the fourth sensor 14. When the door leaf moves toward the door frame and the door leaf is accurately aligned with the door frame, the third magnet 12 is just sensed by the fourth sensor 14, and then the lock rod 22 can be inserted. When the fourth sensor 14 cannot sense the third magnet 12 and this situation reaches a certain time, the control system sends a prompt message to the user's device, prompting that the door leaf is not closed properly. Therefore, by setting the second magnet 11, the third magnet 12, the third sensor 13 and the fourth sensor 14, it can be ensured that the smart door lock will not lack some functions after the lock rod 22 is changed in direction, that is, the above settings ensure the normal use of the smart door lock.

[0039] The present invention uses a circuit board 18 as a control system, the motor 5 is electrically connected to the circuit board 18, and the first sensor 9, the second sensor 10, the third sensor 13 and the fourth sensor 14 are arranged on the circuit board 18 and electrically connected to the circuit board 18. Specifically, a battery for powering the smart door lock is also arranged in the lock housing 1.

[0040] Preferably, the first sensor 9 , the second sensor 10 , the third sensor 13 and the fourth sensor 14 are all magnetic sensors.

[0041] like Figure 3 and Figure 4As shown, a limit stopper 15 located in the lock housing 1 and used to prevent the lock rod 22 from being separated from the lock housing 1 is detachably provided on the lock rod 22. Preferably, the limit stopper 15 is C-shaped, and a C-shaped groove corresponding to the limit stopper 15 is provided on the lock rod 22, and the limit stopper 15 is embedded in the C-shaped groove. During the process of withdrawing the lock rod 22, the limit stopper 15 fits with the inner wall of the lock housing 1, so that the lock rod 22 cannot be separated from the lock housing 1, eliminating the risk of losing the lock rod 22, and when the lock rod 22 needs to be used in a reverse direction, it is only necessary to remove the limit stopper 15 and then remove the lock rod 22, and the limit stopper 15 is installed after the lock rod 22 is installed.

[0042] A protection box 16 is provided in the lock housing 1, and the motor 5 is arranged in the protection box 16. A through hole is provided in the protection box 16 for passing the output shaft of the motor 5. Specifically, the protection box 16 includes a base and a box cover, and a sealing ring is provided between the base and the box cover; specifically, the circuit board 18 and the battery are also arranged in the protection box 16. The protection box 16 can prevent rainwater and the like from corroding the internal parts, so that the protection box 16 forms a layer of protection.

[0043] like Figure 1 As shown, a curved plate 17 extending downward and outward is provided at the bottom of the front of the lock housing 1. The curved plate 17 can facilitate people to pull the lock housing 1, eliminating the trouble of setting a handle, and the curved plate 17 can also prevent rainwater from flowing to the keyhole of the telescopic lock cylinder 7, thereby protecting the telescopic lock cylinder 7. At the same time, this curved setting is more in line with the structure of the palm, making it easier for people to pull the lock housing 1.

[0044] The lock rod 22 is provided with a fixing hole extending in the radial direction of the lock rod 22 , and the first magnet 8 is fixed in the fixing hole.

[0045] like Figure 3 As shown, a locking rod head 19 is also provided on the end of the locking rod 22 away from the stopper 3, and the locking rod head 19 is arranged outside the lock housing 1. The locking rod head 19 can be conveniently pulled to pull the locking rod 22.

[0046] like Figure 4 and Figure 5 As shown, the cross section of the lock rod 22 is D-shaped, and the through hole on the lock housing 1 for the lock rod 22 to pass through is also D-shaped. The above arrangement can conveniently fix the direction of the lock rod 22, so that the lock rod 22 is more stable when moving.

[0047] The lock housing 1 consists of two parts.

[0048] The following describes the use principle of the present invention to facilitate understanding of the present invention:

[0049] In this embodiment, the lock rod 22 is inserted from left to right. When the smart door lock is in the closed state, the lock plate 21 is engaged in the lock slot 221 and one end of the lock rod 22 is inserted into the block 3. When opening the door, the user scans the QR code through the device. After the identity is confirmed, the motor 5 drives the lock plate 21 to move upward to extend the spring 4. When the upper end of the lock plate 21 presses the travel switch 6, the motor 5 stops rotating. After the lock rod 22 is separated from the lock plate 21, the lock rod 22 can be pulled out of the block 3, thereby achieving the purpose of unlocking. When closing the door, the door leaf moves toward the door frame, driving the lock shell 1 and the like to move toward the door frame, and then the third sensor 13 senses the second magnet 11, at which time the door leaf is aligned with the door frame; then the lock rod 22 is inserted and one end of the lock rod 22 is inserted into the stopper 3, at which time the first magnet 8 is sensed by the first sensor 9; then the motor 5 is reset, causing the spring 4 to contract and drive the lock plate 21 to reset, and the lock plate 21 is engaged in the lock groove 221 after being reset, thereby completing the locking of the smart door lock. Similarly, the working principle when the lock rod 22 is inserted from right to left is the same as the above principle. When mechanically unlocking, you only need to insert the key to make the push rod of the telescopic lock core 7 move up and down, and then cooperate with the spring 4, so that the lock plate 21 and the lock rod 22 can be engaged or separated.

[0050] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A smart door lock, comprising a lock body, characterized in that: The lock body comprises a lock shell, a lock tongue mechanism, a stopper and an unlocking mechanism arranged in the lock shell; the lock tongue mechanism comprises a lock plate and a lock rod; the lock plate can be movably arranged in the lock shell up and down and a lock hole is provided on the lock plate, one end of the lock plate is connected to one end of a spring; one end of the lock rod sequentially passes through one side of the lock shell, the lock hole and the other side of the lock shell and then cooperates with the stopper to block the lock, and a lock groove that cooperates with the lock plate is provided on the lock rod; the unlocking mechanism is used to drive the lock plate to move upward to unlock the lock, and the spring is used to reset the lock plate; the lock plate is arranged on the left and right sides of the lock shell, The intelligent door lock further comprises a first magnet arranged on the lock rod, and a first sensor and a second sensor arranged in the lock housing and correspondingly cooperating with the first magnet; the first magnet is arranged on the end of the lock rod away from the block; when the lock rod is inserted into the lock housing from left to right, the first magnet can be sensed by the first sensor; when the lock rod is inserted into the lock housing from right to left, the first magnet can be sensed by the second sensor.

2. The smart door lock according to claim 1, characterized in that: The unlocking mechanism includes an electronic unlocking mechanism; the electronic unlocking mechanism includes a motor; a transmission wheel is provided on the output shaft of the motor, an eccentric rod is provided on the transmission wheel, and the eccentric rod cooperates with a movable hole on the locking plate to drive the locking plate to move upward.

3. The smart door lock according to claim 2, characterized in that: The electronic unlocking mechanism also includes a travel switch arranged outside one end of the locking plate and matched with the locking plate; when the locking plate presses the travel switch, the motor stops rotating.

4. The smart door lock according to claim 1, characterized in that: The unlocking mechanism also includes a mechanical unlocking mechanism, which includes a telescopic lock core; the telescopic lock core is arranged outside one end of the lock plate, and the push rod of the telescopic lock core is against the lock plate; the push rod of the telescopic lock core moves upward to drive the lock plate to move upward to achieve unlocking.

5. The smart door lock according to claim 1, characterized in that: The smart door lock also includes a second magnet and a third magnet which are arranged on the block and are symmetrically arranged up and down, and a third sensor and a fourth sensor which are arranged in the lock shell and correspondingly cooperate with the second magnet and the third magnet; when the lock rod is inserted into the lock shell from left to right, the second magnet can be sensed by the third sensor; when the lock rod is inserted into the lock shell from right to left, the third magnet can be sensed by the fourth sensor.

6. The smart door lock according to claim 1, characterized in that: A limit stopper located in the lock housing and used for preventing the lock rod from being separated from the lock housing is detachably provided on the lock rod.

7. The smart door lock according to claim 2, characterized in that: A protection box is arranged in the lock housing, the motor is arranged in the protection box, and a through hole for passing the output shaft of the motor is arranged on the protection box.

8. The smart door lock according to claim 1, characterized in that: An arc-shaped plate extending downward and outward is arranged at the bottom of the front side of the lock housing.

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