CN111550127A - A smart door lock - Google Patents

Abstract

The invention discloses an intelligent door lock, comprising a lock body; the lock body includes a lock shell, a lock bolt mechanism, a stopper and an unlocking mechanism arranged in the lock casing; the lock bolt mechanism includes a lock A plate and a lock lever; the lock plate can be moved up and down in the lock housing and a lock hole is provided on the lock plate, and one end of the lock plate is connected with one end of a spring; one end of the lock lever After passing through one side of the lock case, the lock hole and the other side of the lock case in sequence, it is engaged with the stopper, and the lock rod is provided with a lock piece that cooperates with the lock. The lock slot of the card position; the unlocking mechanism is used to drive the lock piece to move upward to realize unlocking, and the spring is used for the lock piece to reset. The 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 locking piece and the locking rod.

Description

A smart door lock

technical field

The invention relates to the technical field of door locks, in particular to an intelligent door lock.

Background technique

Smart door locks are improved on the basis of traditional mechanical locks, and are more intelligent and simplified locks in terms of user safety, identification, and management. Different from traditional mechanical locks, smart door locks are composite locks with safety, convenience and advanced technology. Smart door locks are often equipped with identification functions such as fingerprint, iris or two-dimensional code recognition. This type of technology is highly secure and there is no loss or damage. The current smart door locks are generally more expensive and have complex internal structures, which lead to easy damage to the equipment and troublesome assembly and maintenance.

SUMMARY OF THE INVENTION

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, and at the same time, it also has the advantages of being not easily damaged, and having reliable performance.

In order to achieve the above object, the technical scheme of the present invention is:

An intelligent door lock includes a lock body; the lock body includes a lock shell, a lock bolt mechanism, a stopper and an unlocking mechanism arranged in the lock casing; the lock bolt mechanism includes a lock plate and a lock lever ; the locking piece can be moved up and down in the lock housing and is provided with a locking hole on the locking piece, one end of the locking piece is connected with one end of a spring; one end of the locking rod passes through the One side of the lock case, the lock hole and the other side of the lock case are engaged with the stopper, and the lock rod is provided with a lock that engages with the lock piece. the slot; the unlocking mechanism is used to drive the locking piece to move upward to realize unlocking, and the spring is used to reset the locking piece.

For the additional structure of the above technical solutions, the following solutions are also included:

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

Further, the electronic unlocking mechanism further includes a travel switch arranged outside one end of the locking piece and cooperating with the locking piece; when the locking piece presses the travel switch, the motor stops rotating.

As a specific embodiment, the unlocking mechanism further includes a mechanical unlocking mechanism, and the mechanical unlocking mechanism includes a retractable lock cylinder; the retractable lock cylinder is provided outside one end of the lock plate, and the retractable lock The push rod of the core is pressed against the lock piece; the upward movement of the push rod of the telescopic lock cylinder drives the upward movement of the lock piece to realize unlocking.

As a specific embodiment, the locking piece is set in the middle position between the left and right sides of the lock case, so that one end of the lock rod can be inserted into the lock case from the left to the right or from the right to the right. Insert the lock case in the left direction.

Further, the smart door lock also includes a first magnet arranged on the lock lever, and a first sensor and a second sensor arranged in the lock housing and correspondingly matched 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 used by the lock rod. The first sensor senses; when the lock lever is inserted into the lock housing from right to left, the first magnet can be sensed by the second sensor.

Further, the smart door lock also includes a second magnet and a third magnet arranged on the block and arranged symmetrically up and down, and a second magnet and a third magnet arranged in the lock shell and corresponding to the second magnet and the first magnet. The third sensor and the fourth sensor are matched with three magnets; when the lock lever is inserted into the lock housing from left to right, the second magnet can be sensed by the third sensor; when all When the lock rod is inserted into the lock case from right to left, the third magnet can be sensed by the fourth sensor.

As a specific embodiment, the locking rod is detachably provided with a limit block located in the lock housing and used to prevent the locking rod from detaching from the lock housing.

As a specific embodiment, a protection box is arranged in the lock housing, the motor is arranged in the protection box, and a protection box is arranged on the protection box for passing through the output shaft of the motor. perforation.

As a specific embodiment, an arc-shaped plate extending downward and outward is provided at the bottom of the front face of the lock case.

The beneficial effects of the present invention are:

(1) The present invention has a simple and reasonable structure, is convenient for production and assembly, and has a low production cost, and at the same time, it also has the advantages of being not easily damaged, reliable in performance, and the like.

(2) The present invention can realize convenient unlocking and locking through the cooperation between the locking piece and the locking rod.

(3) The electronic unlocking mechanism and the mechanical unlocking mechanism of the present invention share the same lock piece, and the two do not interfere with each other, so that an electronic switch lock and a mechanical switch lock can be realized.

(4) The present invention can change the direction of the lock lever by arranging the lock plate in the middle position between the left and right sides of the lock case, so that people can install the smart door lock on doors opened in different directions.

(5) In the present invention, by arranging the first magnet on the lock rod, and arranging the first sensor and the second sensor in the lock housing, the first magnet can be sensed by the sensor even after the direction is changed, preventing the smart door Lock functionality is missing.

(6) In the present invention, by arranging the second magnet and the third magnet on the stopper, and arranging the third inductor and the fourth inductor in the lock housing, the second magnet and the third magnet can be used even after changing directions. It is sensed by the sensor to prevent the function of the smart door lock from being lost.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is an exploded view of the present invention;

Fig. 3 is a partial structure diagram one of the present invention;

Fig. 4 is the partial structure diagram two of the present invention;

Fig. 5 is the structural representation of the lock lever of the present invention;

FIG. 6 is a schematic structural diagram of the locking piece of the present invention.

Reference number:

1. Lock shell; 2. Lock tongue mechanism; 21, Lock plate; 211, Lock hole; 212, Active hole; 213, Limiting part; 22, Lock lever; ;5, motor; 51, transmission wheel; 6, travel switch; 7, telescopic lock cylinder; 8, first magnet; 9, first sensor; 10, second sensor; 11, second magnet; 12, The third magnet; 13, the third sensor; 14, the fourth sensor; 15, the limit stop; 16, the protection box; 17, the arc plate; 18, the circuit board; 19, the lock rod head.

Detailed ways

The invention will be further described below with reference to the accompanying drawings and specific embodiments. The following descriptions are only exemplary and do not limit the protection scope of the invention.

As shown in Figures 1-6, a smart door lock includes a lock body, and the lock body includes a lock shell 1, a deadbolt mechanism 2, a stopper 3 and an unlocking mechanism arranged in the lock casing 1; the deadbolt mechanism 2 includes a lock piece 21 and a lock rod 22; the lock piece 21 can be moved up and down in the lock housing 1 and a lock hole 211 is provided on the lock piece 21, one end of the lock piece 21 is connected with one end of a spring 4, specifically Yes, the lower end of the locking piece 21 is connected to the upper end of the spring 4, but those skilled in the art should know that a single elastic piece can also be provided above the locking piece 21, which can also achieve the same effect as the spring 4; the locking rod 22 One end of the lock case 1 passes through one side of the lock case 1, the lock hole 211 and the other side of the lock case 1 in turn, and then cooperates with the stopper 3 to lock the door, so as to lock the door. A lock slot 221 that cooperates with the locking piece 21; specifically, the lock shell 1 is provided with a through hole for the lock rod 22 to pass through, and the stopper 3 is also provided with a socket corresponding to the lock rod 22; The unlocking mechanism is used to drive the locking piece 21 to move upward to realize unlocking, and the spring 4 is used to reset the locking piece 21 . It should be noted that the lock piece 21 can be unlocked after the upward movement is only for the convenience of description, and it is not used to limit the lock piece 21 to only move upward and then realize the unlocking. It can also be set to be unlocked after the downward movement. Of course , or in other directions.

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, and an eccentric rod is provided on the transmission wheel 51 and the eccentric rod and the locking plate 21. The hole 212 is matched to drive the locking piece 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 limit portion 212 protrudes from the front end surface and the rear end surface of the locking piece 21 respectively. ; There are two limit grooves (not shown in the figure) matched with the limit part 212 in the lock shell 1, so that the lock piece 21 is more stable during movement and will not deviate from the preset route. Specifically, the two limit slots are respectively disposed on the two limit plates, and the two limit portions 212 are correspondingly snapped into the two limit slots. After the user is identified by the two-dimensional code, the control system controls the motor 5 to drive the lock piece 21 to move upward through the transmission wheel 51, so that the lock piece 21 is separated from the lock rod 22 and the spring 4 is stretched, so that the lock rod 22 can be smoothly moved. Pull out and make the lock lever 22 separate from the stopper 3, thus completing the unlocking; when the lock is closed, insert the lock lever 22 into the stopper 3, and then the motor 5 is reset, resulting in no force to push the locking piece 21, so that the The spring 4 contracts and drives the locking piece 21 to reset. After the locking piece 21 is reset, the locking piece 21 is also just stuck in the locking groove 221, thus completing the locking.

As shown in FIG. 4 , the electronic unlocking mechanism further includes a travel switch 6 arranged outside one end of the locking piece 21 and matched with the locking piece 21 ; when the locking piece 21 presses the travel switch 6 , the motor 5 stops rotating. Specifically, during the upward movement of the locking piece 21 , when the locking piece 21 presses the travel switch 6 , the motor 5 stops.

As shown in Figures 3 and 4, the unlocking mechanism also includes a mechanical unlocking mechanism arranged in the lock housing 1, and the mechanical unlocking mechanism includes a telescopic lock cylinder 7; Specifically, the telescopic lock cylinder 7 is arranged below the lock plate 21, the push rod of the telescopic lock cylinder 7 is against the lock plate 21, and the key hole of the telescopic lock cylinder 7 is located at the bottom of the lock shell 1; The upward movement of the push rod of the core 7 drives the lock piece 21 to move upward to realize unlocking. When the push rod is reset, the reset of the lock piece 21 is also reset by the spring 4, thereby realizing the lock.

As shown in Figures 3 and 4, the locking piece 21 is arranged in the middle position between the left and right sides of the lock housing 1, so that one end of the locking rod 22 can be inserted into the lock housing 1 from left to right or inserted into the lock from right to left Shell 1. Through the above settings, the smart door lock of the present invention can be applied to doors that open the door in the left direction or in the right direction. Specifically, when changing the position of the door lock, remove the lock rod 22 and then insert the lock rod 22 into the lock in the other direction. The shell 1 and the locking piece 21 are all that is needed, and then the blocking block 3 is removed and adjusted correspondingly to the direction of the locking rod 22 . The above design can make the application of the present invention wider, an intelligent door lock can be used for doors opened in two different directions, and has strong practicability. The cost of changing door locks.

As shown in FIG. 3 , the smart door lock also includes a first magnet 8 arranged on the lock lever 22 , and a first sensor 9 and a first sensor 9 arranged in the lock housing 1 and correspondingly matched with the first magnet 8 . Two sensors 10; when the lock lever 22 is inserted into the lock case 1 from left to right, the first magnet 8 can be sensed by the first sensor 9; when the lock lever 22 is inserted into the lock case 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 lever 22 away from the block 3; the first sensor 9 and the second sensor 10 are in the left-right direction Symmetrical settings. By arranging 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 shell 1 from left to right At this time, and after one end of the lock lever 22 is accurately inserted into the stopper 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 piece 21 to reset and is connected with the lock. The lever 22 is engaged to complete the locking; when the lock lever 22 is inserted into the lock housing 1 from right to left and one end of the lock lever 22 is accurately inserted into the stopper 3, the first magnet 8 is just locked. The second sensor 10 senses that the motor 5 is reset, so that the spring 4 drives the locking piece 21 to reset and engages with the locking lever 22, thereby completing the locking; when the locking lever 22 and the stopper 3 are not engaged for a certain period of time, The control system sends prompt information to the user's device, prompting the user to lock the door, which can also prevent false locks (ie, the lock lever 22 is not locked with the stopper 3). Therefore, by arranging 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 changing the direction of the lock lever 22. normal use of the lock.

As shown in FIG. 3 , the smart door lock also includes a second magnet 11 and a third magnet 12 arranged on the stopper 3 and arranged symmetrically up and down, and a second magnet 11 and a third magnet 12 arranged in the lock shell 1 and corresponding to the second magnet 12 . The third sensor 13 and the fourth sensor 14 that the magnet 11 and the third magnet 12 cooperate with; when the lock lever 22 is inserted into the lock housing 1 from left to right, the second magnet 11 can be sensed by the third sensor 13 When the lock lever 22 is inserted into the lock case 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. When in use, the lock case 1 is installed on the door leaf, and the block 3 is installed on the door frame; when the lock rod 22 is inserted into the lock case 1 from left to right, the block 3 is located on the right side of the lock case 1 , at this time the second magnet 11 is located above the third magnet 12 and the second magnet 11 is close to the third sensor 13, the door leaf moves towards the door frame and when the door leaf is accurately aligned with the door frame, the second magnet 12 is just caught by the third sensor 13 is sensed, and then the lock lever 22 can be inserted. When the third sensor 13 cannot sense the second magnet 12 and this situation reaches a certain time, the control system sends a prompt message to the user's device, indicating that the door leaf is not closed. Good; when the lock lever 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 at 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 when 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 lever 22 can be inserted when When the fourth sensor 14 cannot sense the third magnet 12 and the situation reaches a certain period of time, the control system sends a prompt message to the user's device, indicating that the door leaf is not closed properly. Therefore, by arranging 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 changing the direction of the lock lever 22, that is, the above The settings ensure the normal use of the smart door lock.

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

Preferably, the first inductor 9, the second inductor 10, the third inductor 13 and the fourth inductor 14 are all magnetic inductors.

As shown in FIG. 3 and FIG. 4 , the locking rod 22 is detachably provided with a limit block 15 located in the lock housing 1 and used to prevent the locking rod 22 from detaching from the lock housing 1 . Preferably, the limit block 15 is C-shaped, a C-shaped groove corresponding to the limit block 15 is provided on the locking rod 22 , and the limit block 15 is embedded in the C-shaped groove. During the extraction process of the lock lever 22, the limit stop 15 is in contact with the inner wall of the lock case 1, so that the lock lever 22 cannot be separated from the lock case 1, avoiding the risk of losing the lock lever 22, and the lock lever 22 needs to be reversed when the lock is used. When the rod 22 is installed, it is only necessary to remove the limit block 15 and then remove the lock rod 22. After the lock rod 22 is installed, the limit block 15 is installed.

A protection box 16 is arranged in the lock housing 1 , the motor 5 is arranged in the protection box 16 , and a through hole for passing the output shaft of the motor 5 is arranged in the protection box 16 . Specifically, the protection box 16 includes a base and a cover, and a sealing ring is arranged between the base and the cover; specifically, the circuit board 18 and the battery are also arranged in the protection box 16 . By providing the protection box 16 , it is possible to prevent rainwater and the like from eroding the internal components, so that the protection box 16 forms a layer of protection.

As shown in FIG. 1 , an arc-shaped plate 17 extending downward and outward is provided at the bottom of the front face of the lock housing 1 . By arranging the arc-shaped plate 17, it is convenient for people to pull the lock case 1, avoiding the trouble of arranging the handle, and the arc-shaped plate 17 can also prevent rainwater from flowing to the key hole of the telescopic lock cylinder 7, so as to protect the telescopic lock cylinder 7. The function of the lock cylinder 7. At the same time, the arc-shaped arrangement is more in line with the structure of the palm, which makes it easier for people to pull the lock shell 1 .

The locking rod 22 is provided with a fixing hole extending along the radial direction of the locking rod 22 , and the first magnet 8 is fixed in the fixing hole.

As shown in FIG. 3 , a lock rod head 19 is also provided on the end of the lock rod 22 away from the block 3 , and the lock rod head 19 is provided outside the lock housing 1 . The locking bar 22 can be easily pulled by arranging the locking bar head 19 .

As shown in FIG. 4 and FIG. 5 , 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. Through the above arrangement, the direction of the lock lever 22 can be easily fixed, so that the lock lever 22 is more stable when moving.

The lock housing 1 consists of two parts.

Introduce the use principle of the present invention below, in order to understand the present invention:

In this embodiment, the locking rod 22 is inserted into the locking rod 22 from left to right. When the smart door lock is in the closed state, the lock piece 21 is engaged in the lock slot 221 and one end of the lock lever 22 is inserted into the block 3. When the door is opened, the user scans the QR code through the device. After the identity is confirmed, the motor 5. Drive the locking piece 21 upward to stretch the spring 4. When the upper end of the locking piece 21 presses the travel switch 6, the motor 5 stops rotating, and after the locking rod 22 is separated from the locking piece 21, the locking rod 22 can be pulled out of the block. 3, so as to achieve the purpose of unlocking. When the door is closed, the door leaf moves toward the door frame, which drives the lock case 1 to move toward the door frame, and then the third sensor 13 senses the second magnet 11. At this time, the door leaf is aligned with the door frame; Insert into the block 3, at this time the first magnet 8 is sensed by the first sensor 9; then the motor 5 is reset, the spring 4 is contracted and the lock piece 21 is reset, and the lock piece 21 is reset and locked in the lock slot. 221, thus completing the locking of the smart door lock. Similarly, when the lock lever 22 is inserted into the lock lever 22 from right to left, the working principle is also the same as the above-mentioned principle. When unlocking mechanically, it is only necessary to insert the key to move the push rod of the telescopic lock cylinder 7 up and down, and then cooperate with the spring 4, so that the locking plate 21 and the lock rod 22 can be engaged or separated.

The present invention is not limited to the above-mentioned embodiments. If various changes or deformations of the present invention do not depart from the spirit and scope of the present invention, and if these changes and deformations belong to the claims of the present invention and the equivalent technical scope, then the present invention is also Intended to contain these alterations and variants.

Claims (10)

1. The utility model provides an intelligence lock, including the lock body, its characterized in that:

the lock body comprises a lock shell, a spring bolt mechanism, a stop 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 is arranged in the lock shell in a vertically movable manner and is provided with a lock hole, and one end of the lock plate is connected with one end of a spring; one end of the lock rod penetrates through one side edge of the lock shell, the lock hole and the other side edge of the lock shell in sequence and then is matched with the stop block for clamping, and a lock groove matched with the lock plate for clamping is formed in the lock rod; the unlocking mechanism is used for driving the locking plate to move upwards to realize unlocking, and the spring is used for resetting the locking plate.

2. The intelligent door lock of claim 1, wherein:

the unlocking mechanism comprises an electronic unlocking mechanism; the electronic unlocking mechanism comprises a motor; the locking plate is characterized in that a driving wheel is arranged on an output shaft of the motor, an eccentric rod is arranged on the driving wheel, and the eccentric rod is matched with a movable hole in the locking plate and used for driving the locking plate to move upwards.

3. The intelligent door lock of claim 2, wherein:

the electronic unlocking mechanism also comprises a travel switch which is arranged outside one end of the locking plate and is matched with the locking plate; when the locking plate presses the travel switch, the motor stops rotating.

4. The intelligent door lock of claim 1, wherein:

the unlocking mechanism also comprises a mechanical unlocking mechanism, and the mechanical unlocking mechanism comprises a telescopic lock cylinder; the telescopic lock cylinder is arranged outside one end of the lock plate, and a push rod of the telescopic lock cylinder props against the lock plate; the locking plate is driven to move upwards to realize unlocking through the upward movement of the push rod of the telescopic lock cylinder.

5. The intelligent door lock according to any one of claims 1-4, wherein:

the locking plate sets up the intermediate position between the left and right both sides of lock shell to make the one end of locking lever can be inserted from left right direction the lock shell or from right left direction insert the lock shell.

6. The intelligent door lock of claim 5, wherein:

the intelligent door lock also comprises a first magnet arranged on the lock rod, a first inductor and a second inductor which are arranged in the lock shell and correspondingly matched with the first magnet; the first magnet is arranged at the end of the lock rod far away from the stop block; when the lock rod is inserted into the lock shell from left to right, the first magnet can be sensed by the first sensor; when the lock rod is inserted into the lock shell from the right to the left direction, the first magnet can be sensed by the second sensor.

7. The intelligent door lock of claim 5, wherein:

the intelligent door lock also comprises a second magnet and a third magnet which are arranged on the stop block and are arranged up and down symmetrically, and a third inductor and a fourth inductor which are arranged in the lock shell and are correspondingly matched 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 the right to the left direction, the third magnet can be sensed by the fourth sensor.

8. The intelligent door lock of claim 1, wherein:

the lock rod is detachably provided with a limit stop block which is positioned in the lock shell and used for preventing the lock rod from being separated from the lock shell.

9. The intelligent door lock of claim 1, wherein:

the lock shell is internally provided with a protection box, the motor is arranged in the protection box, and the protection box is provided with a through hole for penetrating out of an output shaft of the motor.

10. The intelligent door lock of claim 1, wherein:

the bottom of the front surface of the lock shell is provided with an arc-shaped plate which extends downwards and outwards.

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