Intelligent anti-theft lock

Abstract

The present invention discloses an intelligent anti-theft lock, which comprises a main body, a lock core provided with a relatively rotating lock core part, an inner handle and an outer handle, wherein an electric driving source, a circuit board, a main lock tongue and a small lock tongue which can be extended out of the main body, a lock core driving member, a handle driving member and a special-shaped connecting rod are arranged in the main body, an output gear is arranged on the electric driving source, and the lock core driving member is provided with a special-shaped gear part, a first cam part linked with the lock core part, a first driving part linked with the main lock tongue and a second driving part linked with the small lock tongue from bottom to top, and the lock core driving member is linked as a whole; a plurality of tooth parts are arranged on the special-shaped gear part, and the tooth parts are meshed with the output gear; the inner handle and the outer handle are linked with the handle driving member from two sides respectively; the circuit board controls the operation of the electric driving source; after locking, the first cam part is located on the motion trajectory of one end of the special-shaped connecting rod, and the other end of the special-shaped connecting rod is located on the motion trajectory of the lock core part; the present invention has multiple functions, good anti-theft effect, low processing cost and convenient maintenance.

Description

Technical Field

[0001] The invention relates to an intelligent anti-theft lock. Background Art

[0002] Smart anti-theft locks are mainly used for door locks, which have electric drive or mechanical and electric co-installation. Users can unlock the door through IC cards, fingerprints or APP. However, the existing smart anti-theft locks, especially the mechanical and electric co-installation anti-theft locks, have complex internal structures. First, there are many parts, which makes installation inconvenient; second, the structure is complex and the transmission is unstable; and the entire processing cost is high. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide an intelligent anti-theft lock.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an intelligent anti-theft lock, which includes a main body, a lock core part that rotates relative to the lock core, an inner handle and an outer handle, wherein an electric drive source, a circuit board, a main lock tongue and a small lock tongue that can be extended out of the main body, a lock core driving part, a handle driving part and a special-shaped connecting rod are arranged in the main body.

[0005] The electric drive source is provided with an output gear.

[0006] The lock core drive member is provided with a special-shaped gear part, a first cam part linked with the lock core part, a first drive part linked with the main lock tongue, and a second drive part linked with the small lock tongue from bottom to top, and the lock core drive member is integrally linked;

[0007] The special-shaped gear part is provided with a plurality of teeth, which mesh with the output gear;

[0008] The inner handle and the outer handle are linked with the handle driving member from both sides;

[0009] The circuit board controls the operation of the electric drive source;

[0010] After locking, the first cam portion is located on the motion track of one end of the special-shaped connecting rod, and the other end of the special-shaped connecting rod is located on the motion track of the lock core portion.

[0011] With this structural setting, a multi-level lock core drive member is set, which realizes multi-level corresponding different drives, forms a spatial layering sense, and makes the linkage effect between each other. When the lock core is locked, the lock core part moves, so that the first cam part moves, drives the lock core drive member to rotate as a whole, and further drives the main lock tongue and the small lock tongue to move, so as to realize the locking function. During the movement, the special-shaped gear part drives the output gear to rotate at the same time. Here, the output gear can also be driven to move by the motor drive source, and the output gear drives the special-shaped gear part to move, so as to realize the overall rotation of the lock core drive member. Thus, both manual and automatic operation can be realized. Here, the electric control is specifically controlled by the circuit board, and the unlocking effect can be realized by IC card, fingerprint or APP. When unlocking, the lock core part drives the special-shaped connecting rod to move, and the special-shaped connecting rod drives the first cam part to move, so that the lock core drive member rotates as a whole, so that the main lock tongue and the small lock tongue move together to realize the unlocking effect. At this time, the unlocking personnel can realize the door opening effect without pressing the handle.

[0012] Among them, a second cam portion and a push plate are provided on the lock core driving member, and the inner handle is linked to the second cam portion through the push plate, and the second cam portion is located at the top of the lock core driving member.

[0013] Through the linkage between the inner handle and the push plate, the overall driving effect is better, and a higher level is added, which brings increased functions and makes the transmission between the inner handle and the main lock tongue more stable.

[0014] Among them, the special-shaped gear part, the first cam part, the first driving part, the second driving part and the second cam part are all processed separately and fixed by riveting and forming to form a lock core driving part.

[0015] The lock core drive parts are processed separately, and finally rivets are passed through the five parts to form a riveted fixation. Compared with the one-piece molding process, the processing is difficult, and the one-piece molding process is processed into multiple levels, which is more difficult and the processing cost is high. The use of separate processing reduces the processing difficulty and reduces the production cost.

[0016] One end of the special-shaped connecting rod is connected to the first cam portion, and the other end can move into the lock core.

[0017] This structure is used to prevent the locksmith from locking himself in the door when changing the lock cylinder. He has no key and can only notify other people to unlock the door from the outside. With this structure, the lock cylinder can only be changed when the door is open (that is, when the main lock tongue is not extended). In the locked state, the special-shaped connecting rod extends into the lock cylinder, and the lock cylinder cannot be changed, thereby ensuring that the locksmith will not be locked in.

[0018] Among them, it also includes a first limiting column, and the special-shaped connecting rod is provided with a first limiting portion, and the first limiting portion is against the first limiting column.

[0019] The first limit column is set to prevent the special-shaped connecting rod from over-rotating and affecting normal use. For example, the locking operation is to rotate the lock core 90° clockwise to achieve the locking effect, and the unlocking operation requires rotating the lock core 45° counterclockwise to achieve the unlocking effect.

[0020] Wherein, a first limiting protrusion is provided on the special-shaped connecting rod, and the first limiting protrusion is located on the movement track of the lock core part.

[0021] The first limiting protrusion is provided to achieve a clockwise limiting effect, thereby preventing the lock core from excessively rotating.

[0022] Among them, a first Hall element is provided on the circuit board, a first fixed column is provided on the main body, a first magnet is provided in the first fixed column, the first fixed column is fitted with the movement trajectory of the lock core part, and when the lock core part is against the first limiting protrusion, the lock core part corresponds to the first Hall element.

[0023] The first Hall element is used to close the electric signal unlocking (i.e. electric unlocking). For example, when the residents are away from home for a long time, if a power outage or other accidents occur, the anti-theft effect will be deteriorated, which will seriously affect the normal use of the anti-theft door. When the lock core part and the first Hall element are inductively coupled for a long time, the circuit board receives a signal and stops the use of the electric signal unlocking (i.e. electric unlocking). It can only be unlocked manually mechanically. It should be noted here that after one mechanical unlocking, the electric signal unlocking restriction is lifted. The first magnet is not installed on the lock core part. Since the lock core as a whole will be replaced, if the replaced lock core does not have the first magnet, this function will be invalid. Moreover, the lock core is a universal part, and the installer cannot ensure that each lock core is equipped with a magnet. Therefore, the first fixed column is used to magnetize the lock core part, so that the lock core part has a certain magnetism, thereby ensuring the normal use of this function.

[0024] It also includes a handle driving member, on which a first special-shaped member is provided, and the first special-shaped member has an idle stroke relative to the handle driving member, the inner handle is linked to the first special-shaped member, and the first special-shaped member is provided with a first leg and a second leg, the first leg moves with the small locking tongue, and the second leg is linked to the push plate.

[0025] By adopting the setting of the first special-shaped part, the first special-shaped part is driven to move by the inner handle, so that the handle driving part is used to move as a whole, so that the inner handle can open the main lock tongue and the small lock tongue at the same time, while the outer handle can only move within the idling stroke, and can only open the small lock tongue but cannot open the main lock tongue.

[0026] It also includes a first limiting member and a second limiting column. The first limiting member is provided with a push rod. The circuit board controls the movement of the push rod so that the push rod is located between the main lock tongue and the second limiting column.

[0027] The first limiter is used to achieve the effect of manual and automatic unlocking. For example, in order to prevent others from entering the room during work hours, the residents can control the circuit board to extend the top rod after locking, so that the main lock tongue cannot move, making it impossible to unlock manually or automatically. Only when the residents control the circuit board to unlock the top rod first can the unlocking operation be performed. The top rod can be unlocked by the induction device or by APP control to achieve the effect of unlocking the top rod.

[0028] The main body includes a base and a cover plate, and the base and the cover plate are fixed by riveting.

[0029] The base and the cover are fixed by riveting, which achieves the anti-disassembly effect. Compared with screws, screws will loosen after long-term use, affecting the fixing effect.

[0030] Wherein, a guide portion is provided at the top end of the special-shaped gear portion, and the guide portion extends to the bottom of the special-shaped connecting rod.

[0031] The guide portion is arranged so that the special-shaped connecting rod always maintains a horizontal movement state.

[0032] The base and the cover plate form a receiving cavity, a notch is provided on the side of the receiving cavity, and the circuit board extends into the receiving cavity through the notch.

[0033] A notch is opened on the side. After the base and the cover are fixed, the circuit board can be replaced through the side. If the circuit board fails, it can be quickly replaced. Since the circuit board and electric drive source have the highest cost and the greatest probability of failure inside the entire anti-theft lock, these two places are the focus of maintenance, and the other positions are fixed and locked to prevent accidental disassembly and assembly, which cannot be restored.

[0034] Wherein, a hollow portion is provided on the cover plate, and the electric drive source is fixed on the base through the hollow portion.

[0035] The hollow portion is provided so that the electric drive source can be quickly replaced, and the operation is more convenient. Here, the electric drive source can be a motor.

[0036] It also includes a first limiting plate, a first fixing frame is arranged on the main body, one end of the small locking tongue passes through the first fixing frame and is fixed to the first limiting plate, and the other end extends out of the main body and is rotatably arranged.

[0037] The first limiting plate is used so that during the installation process, if it is found that the small lock tongue is installed in the wrong direction, the small lock tongue can be pulled outward. Since the first limiting plate and the first fixing frame are against each other, the small lock tongue and the first fixing frame will not fall off. When the small lock tongue moves outward, the rotation effect can be achieved. When it is rotated to a suitable position, the small lock tongue can be reset to achieve the replacement effect. It should be noted here that when the inner handle or the outer handle is fixed, the small lock tongue cannot be rotated. Specifically, after the handle is installed, the handle itself has a limited rotation angle, thereby limiting the rotation of the handle driving member. At this time, only the handle needs to be disassembled to adjust the position of the small lock tongue. Compared with the prior art, this structural setting can realize the replacement of the position of the small lock tongue without a large amount of disassembly. Here, a reset piece is provided on the small lock tongue, and a reset piece is also provided in the entire anti-theft lock, making installation more convenient.

[0038] Wherein, a second Hall element is arranged on the circuit board, the second Hall element is located between the small lock tongue and the first limit plate, and a second magnet corresponding to the second Hall element is arranged on the small lock tongue.

[0039] The second magnet on the small lock tongue is used to prevent the main lock tongue from being improperly installed with the mounting plate when the mounting plate and the lock tongue are not properly installed. At this time, if the motor continues to move, the main lock tongue will damage the mounting plate. Usually, the through hole size corresponding to the small lock tongue is slightly larger. If the small lock tongue can pass through the mounting plate and be fixed in place, the main lock tongue can also be installed in place, indicating that the mounting plate is in a normal position. If the small lock tongue cannot be extended, the Hall element detects a signal, which controls the motor to stop working to prevent the main lock tongue from damaging the mounting plate.

[0040] It also includes a linkage component, which is located below the push plate and is linked with the push plate.

[0041] The linkage part is arranged so that the linkage effect between the linkage rod and the push plate is better.

[0042] Wherein, a third Hall element is arranged on the circuit board, and a third magnet corresponding to the third Hall element is arranged on the main lock tongue.

[0043] The third Hall element is set up. Since there is no other reset structure in the anti-theft lock of this application, there is a margin during operation. For example, in the locked state, it is normally locked at 90°. When the lock core moves 80°-85°, the main lock tongue has reached the final locked position. At this time, the motor will continue to rotate, so that the overall structure is locked to prevent loosening. Similarly, there is also a movement margin during the unlocking process, and it must continue to rotate to form a locking effect. The Hall element here brings this function.

[0044] It also includes a mounting plate, on which a fourth magnet is arranged, and in the main body a fourth Hall element corresponding to the fourth magnet is arranged.

[0045] The Hall structure of the mounting plate is used to determine whether it fits the door frame and prevent collision between the main lock tongue and the door frame.

[0046] Among them, the lock cylinder is AB lock cylinder.

[0047] The AB lock core setting makes the anti-theft effect better. During the renovation, the user can give the decorator the A lock key. After the renovation is completed, the user can use the B lock key in his hand to rotate the lock core to destroy it, so that the A lock key can no longer be used, thereby achieving an anti-theft effect. Here, the maximum rotation angle of the lock core is greater than or equal to the destruction angle of the B lock key.

[0048] Among them, the handle driving part is provided with a first fixed layer, a first rotating layer linked with the small locking tongue, a filling layer, a second rotating layer with a first special-shaped part and a second fixed layer from bottom to top, and the handle driving part is linked as a whole.

[0049] The handle drive adopts this structural setting, which corresponds to the level of the lock core drive, making the overall drive simpler. Each layer of the structure corresponds to each type of transmission, and the transmission effect is better.

[0050] Among them, a first linkage support foot and a first limit support foot are arranged on the first rotating layer, a third limit column is arranged on the main body, and the third limit column is located on the movement track of the first limit support foot.

[0051] The provision of the third limiting column further limits the rotation of the first limiting support leg, and the first limiting support leg further limits the rotation angle of the outer handle.

[0052] Among them, the first fixed layer, the first rotating layer, the filling layer, the second rotating layer and the second fixed layer are all processed separately and fixed by riveting and forming to form a handle driving part.

[0053] The use of a separate processing setting reduces production costs, and compared with overall processing, separate processing is less difficult, the overall structural hierarchy is more obvious, and the precision is high, and it is not easy to cause confusion.

[0054] Wherein, a first protrusion is provided on the second rotating layer, and a second protrusion corresponding to the first protrusion is provided on the first special-shaped member.

[0055] The first protrusion and the second protrusion are arranged so that a transmission effect is formed between the two. When the first protrusion does not cooperate with the second protrusion, if the outer handle moves, the first special-shaped part will not move, so that the outer handle cannot open the main lock tongue.

[0056] Wherein, a wire buckle is arranged on the main body, and the wire buckle fixes the wire on the bottom surface of the main body.

[0057] The setting of the wire buckle adopts wire setting because there are circuit boards, multiple Hall elements and the control of the first limiter inside. If the wires are connected randomly, it is easy to affect the transmission of other parts. Therefore, the wires are fixed on the base to ensure that the wires will not be pulled.

[0058] Among them, the second fixing frame, the bolt passes through the side surface of the main body, and the second fixing frame is fixed to the lock core.

[0059] The lock core fixing method is adopted to make the lock core fixing more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 is a front view of Embodiment 1 of the present invention;

[0061] Figure 2 It is a right side view of Embodiment 1 of the present invention;

[0062] Figure 3 It is a left side view of embodiment 1 of the present invention;

[0063] Figure 4 is a front view of the mounting plate in Embodiment 1 of the present invention;

[0064] Figure 5 is a perspective view of embodiment 1 of the present invention;

[0065] Figure 6 It is a front view of the main lock tongue in Embodiment 1 of the present invention;

[0066] Figure 7 is a perspective view of a lock core driving member in Embodiment 1 of the present invention;

[0067] Figure 8 is a front view of the special-shaped gear portion in Example 1 of the present invention;

[0068] Fig. 9 is a front view of the second cam portion in Embodiment 1 of the present invention;

[0069] Fig.10 is a front view of the first cam portion in Example 1 of the present invention;

[0070] Fig.11 is a front view of the first driving unit in Example 1 of the present invention;

[0071] Fig.12 is a front view of the second driving unit in Example 1 of the present invention;

[0072] Fig.13Schematic diagram of the cooperation between the push plate and the linkage member in Embodiment 1 of the present invention; the handle driving member 8 is provided with a first fixed layer 81, a first rotating layer 82 linked with the small locking tongue 5, a filling layer 84, a second rotating layer 83 on which the first special-shaped member 85 is sleeved, and a second fixed layer 86 from bottom to top.

[0073] Fig.14 is a perspective view of a handle driving member in Embodiment 1 of the present invention;

[0074] Fig.15 is a front view of the first special-shaped member in Example 1 of the present invention;

[0075] Fig.16 is a front view of the first rotating layer in Example 1 of the present invention;

[0076] Fig.17 It is a front view of the first fixing layer 81, the filling layer 84, and the second fixing layer in Example 1 of the present invention;

[0077] Fig.18 is a front view of the second rotating layer in Example 1 of the present invention;

[0078] Fig.19 This is a front view of the cooperation between the second rotating layer and the first special-shaped member in Example 1 of the present invention;

[0079] Fig. 20 is a front view of the special-shaped connecting rod in Example 1 of the present invention;

[0080] Fig.21 is a schematic diagram of the state of the external handle opening the door in Embodiment 1 of the present invention;

[0081] Fig. 22 This is a schematic diagram of the state of a small deadbolt locking a door in Embodiment 1 of the present invention;

[0082] Fig.23 is a schematic diagram of the state of the inner handle opening the door in embodiment 1 of the present invention;

[0083] Fig.24 is a schematic diagram of the state of locking the door in Embodiment 1 of the present invention;

[0084] Fig.25 This is a schematic diagram of a state in which the door cannot be opened manually or electrically in Embodiment 1 of the present invention;

[0085] Fig.26 It is a schematic diagram of the coordination of the inner handle and the outer handle of Example 1 of the present invention. DETAILED DESCRIPTION Example

[0086] See attached Figure 1-26As shown, a smart anti-theft lock includes a main body 1, a lock core 2 provided with a relatively rotating lock core part, an inner handle 14, an outer handle 15 and a mounting plate 3.

[0087] The mounting plate 3 is mounted on the door frame and is used to cooperate with the main lock tongue 4 and the small lock tongue 5 of the main body 1 to achieve the fastening and locking effect of the door. Here, the mounting plate 3 is provided with a first through hole 32 corresponding to the small lock tongue 5 and a second through hole 33 corresponding to the main lock tongue 4. The size of the first through hole 32 is larger than the size of the small lock tongue 5, making it easier to adjust the small lock tongue 5. In addition, the mounting plate 3 is also provided with a fourth magnet 31, which is arranged corresponding to the fourth Hall element 104 in the base 111, so as to determine whether the door is closed, achieve door frame cooperation, and prevent the main lock tongue 4 from colliding with the door frame.

[0088] The lock core 2 is provided with a lock hole portion 22 and a lock core portion 21. In the initial state, the lock core portion 21 is located in the lock hole portion 22. The lock core portion 21 is rotated by the external key, and rotated out of the lock hole portion 22 to achieve the effect of unlocking and locking. Here, the lock core portion 21 mainly cooperates with the first cam portion 62 and the special-shaped connecting rod 7. Here, the first cam portion 62 is located in the clockwise direction of the lock core portion 21, and the locking end 71 of the special-shaped connecting rod 7 is located in the counterclockwise direction of the lock core portion 21. It should be noted here that when the locking is completed, the locking end 71 extends into the lock hole portion 22 and abuts against the lock core portion 21. This structural setting is adopted to prevent the lock changer from locking himself in the door when changing the lock core 2, and he has no key and can only notify other personnel to unlock the door from the outside. With this structure, the lock can be changed only when the door is open (i.e., the main lock tongue 4 is not extended). In the locked state, the locking end 71 extends into the lock hole 22, and the lock core 2 cannot be changed, thereby ensuring that the lock changer will not be locked in. A second fixing frame 1112 is provided on the base 111, and bolts pass through the side of the base 111, the second fixing frame 1112 and the lock core 2. The fixing method of the lock core 2 makes the lock core 2 more firmly fixed.

[0089] Furthermore, the lock core 2 here adopts an AB lock core 2. This lock core 2 configuration makes the anti-theft effect better. During decoration, the user can give the decoration master the A lock key. After the decoration is completed, the lock core 2 is rotated and destroyed by the user's own B lock key, so that the A lock key cannot be used anymore, thereby achieving an anti-theft effect. Here, the maximum rotation angle of the lock core part 21 is greater than or equal to the destruction angle of the B lock key. In the preferred solution of this embodiment, the maximum rotation angle of the lock core part 21 is greater than the destruction angle of the B lock key.

[0090] Furthermore, it should be noted that when the AB lock core 2 is used, no matter whether unlocking or locking is completed, the lock core portion 21 must return to the initial state, and only then can the key be pulled out, otherwise, the key cannot be pulled out.

[0091] The inner handle 14 is provided with a driving rod 141, which extends into the driving groove 832 between the second rotating layer 83 and the first special-shaped member 85 to achieve the rotation effect of the inner handle 14. Here, the inner handle 14 corresponds to the handle inside the door.

[0092] The outside handle 15 is, relatively speaking, a handle on the outside of the door.

[0093] Both handles are linked with the handle driving member 8. Specifically, a square driving hole is provided on the handle driving member 8, so that the two handles can achieve a linkage effect with the handle driving member 8 respectively.

[0094] The main body 1 includes a base 111 and a cover plate 112. The base 111 and the cover plate 112 cooperate to form a receiving cavity 113, and the remaining components are all located in the receiving cavity 113. The specific structure is as follows: the base 111 is provided with an electric drive source 9, a circuit board 10, a main lock tongue 4 and a small lock tongue 5 that can be extended out of the main body 1, a lock core drive member 6, a handle drive member 8, a push plate 11, a linkage member 12 and a special-shaped connecting rod 7.

[0095] The electric drive source 9 is provided with an output gear 91, and the output gear 91 specifically cooperates with the tooth portion on the special-shaped gear portion to achieve the meshing effect between the gears and form a linkage. The electric drive source 9 is specifically a motor, and the motor is specifically controlled to rotate through the circuit board 10. It should be noted here that since the price and probability of failure of the electric drive source 9 are greater than other parts, a hollow portion 1121 is provided on the cover plate 112, and the electric drive source 9 is fixed to the base 111 through the hollow portion 1121. With the setting of the hollow portion 1121, when replacing the electric drive source 9, there is no need to disassemble the cover plate 112, and the replacement effect can be achieved, and the operation is more convenient.

[0096] The circuit board 10 mainly plays a control role, specifically forming an electrical connection with the first Hall element 101, the second Hall element 102, the third Hall element 103, the fourth Hall element 104, the first limiter 13 and the electric drive source 9, playing a signal transmission and control role. In addition, a sensing device corresponding to unlocking is also provided on the circuit board 10. Here, the sensing device can achieve the unlocking effect through an IC card, a fingerprint or an APP. This is a well-known technology, so it will not be described here. Moreover, the price of the circuit board 10 and the probability of failure are also greater than those of other components. Therefore, when the cover plate 112 is matched with the base 111, a notch 1122 is provided on the other side of the main lock tongue 4. The circuit board 10 can be moved from the accommodating cavity 113 through the notch 1122 or inserted into the accommodating cavity 113 through the notch 1122. If the circuit board 10 fails, it can be quickly replaced. Since the circuit board 10 and the electric drive source 9 have the highest cost and the greatest probability of failure within the entire anti-theft lock, these two places are the focus of maintenance, and the remaining positions are riveted and locked to prevent accidental disassembly and assembly, and cannot be restored. Compared with the screw fixing method, the screws will become loose over a long period of time, affecting the fixing effect.

[0097] The main lock tongue 4 can be extended out of the main body 1. At least two extensions 41 are provided on the main lock tongue 4. The extensions 41 pass through the mounting plate 3 and the door frame to achieve the locking effect. In this embodiment, only three extensions 41 are used as an example. The main lock tongue 4 is provided with a first rotation groove 42, a first slide groove 43, a first locking portion 44 and a first blocking portion 45. The first rotation groove 42 cooperates with the first driving portion 63 to achieve the linkage effect of the two. Here, the first dead point 421, the second dead point 422 and the third dead point 423 are provided in the first rotation groove 42. When the locking is completed, the first driving portion 63 is stuck with the first dead point 421, so that the main lock tongue 4 cannot move; when the unlocking is completed, the first driving portion 63 is stuck with the third dead point 423, so that the main lock tongue 4 cannot move; when the electric signal is closed to unlock (i.e., electric unlocking), the first driving portion 63 is stuck with the second dead point 422, so that the main lock tongue 4 cannot move. Here, the second dead point 422 is located between the first dead point 421 and the third dead point 423. The first slide groove 43 is used for guiding the overall movement of the main lock tongue 4. Here, the first slide groove 43 specifically corresponds to the second fixing column 1114 located on the push plate 11. The first locking portion 44 cooperates with the first limiting member 13. The first stopper 45 is used for closing the electric signal unlocking (i.e., electric unlocking), and the lock core portion 21 is located between the first stopper 45 and the first limiting protrusion to form a fixing effect.

[0098] The circuit board 10 is provided with a first Hall element 101 and a third Hall element 103, and the base 111 is provided with a first fixed column 1113, and a first magnet is provided in the first fixed column 1113. Here, the circuit board 10 is located above the main lock tongue 4 and is sleeved on the first fixed column 1113. The first fixed column 1113 fits the motion trajectory of the lock core 21. When the lock core 21 is located at the first stopper 45 and the first limit protrusion, the lock core 21 corresponds to the first Hall element 101. The setting of the first Hall element 101 is used to close the electric signal unlocking (i.e., electric unlocking). For example, when the residents go out for a long time and are not at home for a long time, if a power outage or other accidents occur, the anti-theft effect will be deteriorated, which will seriously affect the normal use of the anti-theft door. When the lock core 21 and the first Hall element 101 are inductive for a long time, the circuit board 10 receives a signal, stops the use of the electric signal unlocking (i.e., electric unlocking), and can only be unlocked manually and mechanically. However, the first magnet is not installed in the lock core part 21. Since the lock core 2 as a whole will be replaced, if the replaced lock core 2 does not have the first magnet, this function will be invalid. Moreover, the lock core 2 is a universal part, and the installer cannot ensure that each lock core 2 is equipped with a magnet. Therefore, the first fixed column 1113 is used to magnetize the lock core part 21, so that the lock core part 21 has a certain magnetism, thereby ensuring the normal use of this function.

[0099] Furthermore, a third magnet 46 corresponding to the third Hall element 103 is provided on the main lock tongue 4. With the setting of the third Hall element 103, since there is no other reset structure in the anti-theft lock of the present application, there is a margin during operation. For example, in the locked state, it is normally locked at 90°. When the lock core part 21 moves 80°-85°, the main lock tongue 4 has reached the final locked position. At this time, the electric drive source 9 will continue to rotate, so that the first drive part 63 and the first dead point 421 are stuck, so that the overall structure is locked to prevent loosening. Similarly, in the unlocking process, there is also a movement margin, and it must continue to rotate so that the first drive part 63 and the third dead point 423 are stuck to form a locking effect. Here, the third Hall element 103 brings this function, driving the electric drive source 9 to continue rotating.

[0100] One end of the small lock tongue 5 passes through the first fixing frame 1115 and the first limiting plate 1116, and the other end extends out of the base 111. Specifically, a spring fixing portion 51 is provided on the small lock tongue 5, one end of the reset member 53 abuts against the spring fixing portion 51, and the other end abuts against the first fixing frame 1115, so as to achieve the reset effect of the small lock tongue 5, and the reset member 53 here can be a spring. It should be noted that there is only one energy storage member in the entire anti-theft lock, namely, this reset member 53. The small lock tongue 5 can be driven by the first support leg 851 or the first linkage support leg 821 to achieve the unlocking effect of the small lock tongue 5.

[0101] Here, when the first support leg 851 or the first linkage support leg 821 simultaneously releases the limiting effect on the axial direction of the small lock tongue 5, that is, when the handle driving member 8 rotates counterclockwise as a whole by a certain angle, it can be set to 15-25°, and the preferred solution is 20°. In this state, the small lock tongue 5 can be pulled outward. This structural setting is specifically, during the installation process, if it is found that the small lock tongue 5 is installed in the wrong direction, the small lock tongue 5 can be pulled outward. Since the first limiting plate 1116 and the first fixing frame 1115 are against each other, the small lock tongue 5 and the first fixing frame 1115 will not fall off. When the small lock tongue 5 moves outward, the rotation effect can be achieved. When it is rotated to a position suitable for the inner door or the outer door, the small lock tongue 5 can be reset to achieve the replacement effect. It should be noted that when the inner handle 14 or the outer handle 15 is fixed, the small lock tongue 5 cannot be rotated. Specifically, after the handle is installed, the handle itself has a limited rotation angle, thereby limiting the rotation of the handle driving member 8. At this time, only the handle needs to be disassembled to adjust the position of the small lock tongue 5. Compared with the prior art, this structural setting can achieve the replacement of the position of the small lock tongue 5 without a large amount of disassembly. Further, the base 111 can also be provided with a limit screw to achieve the effect of the small lock tongue 5.

[0102] Further, the circuit board 10 is provided with a second Hall element 102, and the second Hall element 102 is located between the small lock tongue 5 and the first limit plate 1116, and the small lock tongue 5 is provided with a second magnet 52 corresponding to the second Hall element 102. The second magnet 52 on the small lock tongue 5 is set to prevent the main lock tongue 4 from being installed in place with the mounting plate 3 and the lock tongue during use. At this time, if the electric drive source 9 continues to move, it will cause the main lock tongue 4 to damage the mounting plate 3. Under normal circumstances, the size of the first through hole 32 corresponding to the small lock tongue 5 is slightly larger. If the small lock tongue 5 can pass through the mounting plate 3 and be fixed in place, the main lock tongue 4 can also be installed in place, indicating that at this time, the mounting plate 3 is in a normal position. If the small lock tongue 5 cannot be extended, at this time, the Hall element detects a signal, that is, the control motor stops working to prevent the main lock tongue 4 from damaging the mounting plate 3. The specific position of the second magnet 52 here can be adjusted according to actual needs.

[0103] The lock core drive member 6 is provided with a special-shaped gear part 61, a first cam part 62 linked with the lock core part 21, a first drive part 63 linked with the main lock tongue 4, a second drive part 64 linked with the small lock tongue 5, and a second cam part 65 matched with one end of the push plate 11 from bottom to top. The special-shaped gear part 61, the first cam part 62, the first drive part 63, the second drive part 64 and the second cam part 65 are all processed separately, and the lock core drive member 6 is formed by riveting and forming to form an overall linkage effect. Here, a third fixing column 1117 is provided on the base 111, and the third fixing column 1117 is fixed to the base 111. The lock core drive member 6 is sleeved on the third fixing column 1117 and rotates relatively. The lock core drive member 6 is processed in parts, and finally rivets are passed through the five parts to form a riveted fixation. Compared with the one-piece forming process, the processing difficulty is large, and the one-piece forming process is processed into multiple levels, which is more difficult and the processing cost is large. The use of separate processing reduces the processing difficulty and reduces the production cost.

[0104] The special-shaped gear part 61 is provided with a plurality of teeth 611, which mesh with the output gear 91, forming a linkage effect between the special-shaped gear part 61 and the output gear 91. A guide part 612 is provided on the top of the special-shaped gear part 61, and the guide part 612 extends to the bottom of the special-shaped connecting rod 7. The setting of the guide part 612 allows the special-shaped connecting rod 7 to always maintain a horizontal motion state. It should be noted here that the special-shaped connecting rod 7 and the first cam part 62 are located on the same horizontal plane.

[0105] The first cam portion 62 is located on the movement track of the lock core portion 21 . The lock core portion 21 drives the first cam portion 62 to move. Meanwhile, the first cam portion 62 also drives the special-shaped connecting rod 7 to move, so that the special-shaped connecting rod 7 rotates.

[0106] The first driving portion 63 is provided with a first driving protrusion 631 , which extends into the first rotating groove 42 to achieve a linkage effect. The matching relationship between the first driving protrusion 631 and the three dead points has been described here, so it will not be repeated.

[0107] The second driving part 64 mainly cooperates with one end of the linkage member 12 to drive the other end of the linkage member 12 to rotate, thereby driving the second leg 852 to move, and the second leg 852 drives the first leg 851 to move, thereby achieving the unlocking effect of the small lock tongue 5.

[0108] The second cam portion 65 is connected and matched with one end of the push plate 11. When locking, the second cam portion 65 drives one end of the push plate 11 to rotate. When unlocking, the main lock tongue 4 pushes the push plate 11 to return to the initial position. Here, a first plane 651 is provided on the connecting surface between the second cam portion 65 and the push plate 11. The setting of the first plane 651 also forms a dead point effect, thereby ensuring the stability of the overall fixation. Here, the dead point is specifically located at the state when the unlocking is completed.

[0109] With this structural setting, a multi-level lock core driver 6 is set, which realizes multi-level corresponding different drives, forms a spatial layering sense, and makes the mutual linkage effect. When the lock core 2 is locked, the lock core part 21 moves, so that the first cam part 62 moves, drives the lock core driver 6 to rotate as a whole, and further drives the main lock tongue 4 and the small lock tongue 5 to move, so as to realize the locking function. During the movement, the special-shaped gear part 61 drives the output gear 91 to rotate at the same time. Here, the output gear 91 can also be driven to move by the motor drive source, and the output gear 91 drives the special-shaped gear part 61 to move, so as to realize the overall rotation of the lock core driver 6. Thus, both manual and automatic operation can be realized.

[0110] The handle driving member 8 is provided with a first fixed layer 81, a first rotating layer 82 linked with the small locking tongue 5, a filling layer 84, a second rotating layer 83 on which a first special-shaped member 85 is sleeved, and a second fixed layer 86 from bottom to top. The first fixed layer 81, the first rotating layer 82, the filling layer 84, the second rotating layer 83, and the second fixed layer 86 are all processed separately and fixed by riveting and forming to form the handle driving member 8. It should be noted here that the first special-shaped member 85 is sleeved on the second rotating layer 83, so that the first special-shaped member 85 is provided with an idle stroke relative to the handle driving member 8. Therefore, the first special-shaped member 85 is also fixed on the handle driving member 8 to form a linkage effect. The use of a separate processing setting reduces the production cost, and the separate processing is less difficult than the overall processing, the overall structural layering is more obvious, and the precision is high, and it is not easy to cause confusion. The handle driving member 8 is provided with a square drive hole 87 to cooperate with the inner handle 14 and the outer handle 15.

[0111] The first fixing layer 81 and the second fixing layer 86 play a fixing effect. The shape of the filling layer 84 is consistent with that of the first fixing layer 81 .

[0112] The first rotating layer 82 is provided with a first linkage support leg 821 and a first limiting support leg 822, and the base 111 is provided with a third limiting column 1118, which is located on the motion track of the first limiting support leg 822. The provision of the third limiting column 1118 further limits the rotation of the first limiting support leg 822, and the first limiting support leg 822 further limits the rotation angle of the outer handle 15. The first linkage support leg 821 is used to drive the spring fixing portion 51 to achieve the unlocking effect of the small lock tongue 5.

[0113] The filling layer 84 is used to increase the height of the handle driving member 8 and to achieve a filling effect. Further, in order to reduce production costs, the filling layer 84 is formed by stacking two iron plates.

[0114] The second rotating layer 83 is provided with a first protrusion 831, and the first special-shaped member 85 is provided with a second protrusion 853 corresponding to the first protrusion 831. The first protrusion 831 and the second protrusion 853 are arranged so that a transmission effect is formed between the two. When the first protrusion 831 does not cooperate with the second protrusion 853, if the outer handle 15 moves, the first special-shaped member 85 does not move, so that the outer handle 15 cannot open the main lock tongue 4, and the outer handle 15 can only drive the small lock tongue 5 to move.

[0115] The first shaped member 85 is provided with a first leg 851 and a second leg 852, the first leg 851 moves with the small lock tongue 5, and the second leg 852 is linked with the push plate 11. Here, the first leg 851 and the first linkage leg 821 are respectively located at the upper and lower ends of the small lock tongue 5. With the arrangement of the first shaped member 85, the first shaped member 85 is driven to move by the inner handle 14, so that the handle driving member 8 moves as a whole, so that the inner handle 14 can open the main lock tongue 4 and the small lock tongue 5 at the same time, while the outer handle 15 can only move within the idling stroke, and can only open the small lock tongue 5, but cannot open the main lock tongue 4.

[0116] The push plate 11 and the linkage member 12 are arranged up and down, where the linkage member 12 is specifically located below the push plate 11, one end of the push plate 11 is located on the movement trajectory of the second cam portion 65, the other end of the push plate 11 is located on the movement trajectory of the inner handle 14, and the side of the push plate 11 close to the main lock tongue 4 is located on the movement trajectory of the main lock tongue 4.

[0117] One end of the linkage member 12 is located on the motion track of the second driving portion 64 , and the other end is linked to the second support leg 852 .

[0118] It should be noted here that the push plate 11 and the linkage member 12 are cross-linked, the push plate 11 is provided with a first waist-shaped hole 115 and a first fixing hole 116, the linkage member 12 is provided with a second waist-shaped hole 125 and a second fixing hole 126, the first waist-shaped hole 115 and the second fixing hole 126 are arranged correspondingly up and down, and the second waist-shaped hole 125 and the first fixing hole 116 are arranged correspondingly up and down.

[0119] One end of the special-shaped connecting rod 7 is linked with the first cam portion 62, and the other end is a locking end 71, which is locked to be movable into the lock core 2. The special-shaped connecting rod 7 is provided with a first limiting protrusion 72 and a first limiting portion 73, and the first limiting protrusion 72 is located on the movement trajectory of the lock core portion 21. The setting of the first limiting protrusion 72 achieves the effect of clockwise limiting, preventing the lock core portion 21 from excessive rotation. The first limiting portion 73 abuts against the first limiting column 1110 to prevent the special-shaped connecting rod 7 from excessive rotation. Here, the first limiting portion 73 is located on the side close to the locking end 71. The setting of the first limiting column 1110 prevents the special-shaped connecting rod 7 from excessive rotation, reduces the load of the first cam portion 62, and prolongs the mechanical life. For example, the locking operation is to rotate the lock core portion 21 clockwise by an angle of 90° to achieve the locking effect, then the unlocking operation needs to rotate the lock core portion 21 counterclockwise by an angle of 45° to achieve the unlocking effect.

[0120] When unlocking, the lock core part 21 drives the special-shaped connecting rod 7 to move, and the special-shaped connecting rod 7 drives the first cam part 62 to move, so that the lock core driving part 6 rotates as a whole, thereby realizing the movement of the main lock tongue 4 and the small lock tongue 5 together to achieve the unlocking effect. At this time, the unlocking personnel can achieve the door opening effect without pressing the handle.

[0121] It also includes a first limiter 13 and a second limiter column 1119. The first limiter 13 is provided with a push rod 131. The circuit board 10 controls the movement of the push rod 131 so that the push rod 131 is located between the main lock tongue 4 and the second limiter column 1119. The setting of the first limiter 13 achieves the effect that both manual and automatic unlocking cannot be achieved. For example, during work hours, in order to prevent others from entering the room, the residents can control the circuit board 10. After locking, the push rod 131 is extended so that the main lock tongue 4 cannot move, thereby making it impossible to unlock manually or automatically. Only when the residents control the circuit board 10 to unlock the push rod 131 first can the unlocking operation be performed. Here, the push rod 131 can be unlocked by an induction device, or it can be controlled by an APP to achieve the unlocking effect of the push rod 131. The first limiter 13 can specifically be an electromagnetic element.

[0122] The fourth Hall element 104 is close to one side of the main lock tongue 4, and is connected to the circuit board 10, the first stopper 13 on the base 111, and the electric drive source 9 through a wire. The base 111 is provided with a wire buckle, which fixes the wire on the bottom surface of the main body 1. Therefore, the wire setting is adopted. If the wire is connected randomly, it is very easy to affect the transmission of other parts, so the wire is fixed on the base 111 to ensure that the wire will not be pulled.

[0123] The base 111 and the cover plate 112 are fixed by riveting. The base 111 and the cover plate 112 are fixed by riveting to achieve the anti-disassembly effect. Further, it should be noted here that both the fixing column and the limiting column are riveted fixing points, thereby bringing a double effect.

[0124] This structural setting is easy to maintain, has low production cost, strong sense of hierarchy, high space utilization, and multiple Hall elements are used to ensure the normal use of the anti-theft lock. In addition, by cutting off the electric drive, manual and automatic operation can also be cut off at the same time.

Claims

1. An intelligent anti-theft lock, characterized in that: The invention comprises a main body, a lock core part which rotates relative to the lock core, an inner handle and an outer handle. The main body is provided with an electric drive source, a circuit board, a main lock tongue and a small lock tongue which can be extended out of the main body, a lock core driving part, a handle driving part and a special-shaped connecting rod. The electric drive source is provided with an output gear. The lock core drive member is provided with a special-shaped gear part, a first cam part linked with the lock core part, a first drive part linked with the main lock tongue, and a second drive part linked with the small lock tongue from bottom to top, and the lock core drive member is integrally linked; The special-shaped gear part is provided with a plurality of teeth, which mesh with the output gear; The inner handle and the outer handle are linked with the handle driving member from both sides; The circuit board controls the operation of the electric drive source; After locking, the first cam portion is located on the motion track of one end of the special-shaped connecting rod, and the other end of the special-shaped connecting rod is located on the motion track of the lock core portion.

2. The intelligent anti-theft lock according to claim 1, characterized in that: A second cam portion and a push plate are provided on the lock core driving member, and the inner handle is linked to the second cam portion through the push plate, and the second cam portion is located at the top of the lock core driving member.

3. The intelligent anti-theft lock according to claim 2, characterized in that: The special-shaped gear portion, the first cam portion, the first driving portion, the second driving portion and the second cam portion are all processed separately and fixed by riveting to form a lock core driving component.

4. The intelligent anti-theft lock according to claim 1, characterized in that: One end of the special-shaped connecting rod is connected to the first cam portion, and the other end can move into the lock core.

5. The intelligent anti-theft lock according to claim 1, characterized in that: A first limiting protrusion is arranged on the special-shaped connecting rod, and the first limiting protrusion is located on the movement track of the lock core part.

6. The intelligent anti-theft lock according to claim 5, characterized in that: A first Hall element is provided on the circuit board, a first fixed column is provided on the main body, a first magnet is provided in the first fixed column, the first fixed column fits the movement trajectory of the lock core part, and when the lock core part abuts against the first limiting protrusion, the lock core part corresponds to the first Hall element.

7. The intelligent anti-theft lock according to claim 1, characterized in that: A first special-shaped part is provided on the handle driving part, and the first special-shaped part has an idle stroke relative to the handle driving part. The inner handle is linked with the first special-shaped part. A first support leg and a second support leg are provided on the first special-shaped part. The first support leg moves with the small locking tongue, and the second support leg is linked with the push plate.

8. The intelligent anti-theft lock according to claim 1, characterized in that: It also includes a first limiting member and a second limiting column. The first limiting member is provided with a push rod. The circuit board controls the movement of the push rod so that the push rod is located between the main lock tongue and the second limiting column.

9. The intelligent anti-theft lock according to claim 1, characterized in that: The main body comprises a base and a cover plate, and the base and the cover plate are fixed by riveting.

10. The intelligent anti-theft lock according to claim 1, characterized in that: It also includes a first limiting plate. A first fixing frame is arranged on the main body. One end of the small locking tongue passes through the first fixing frame and is fixed to the first limiting plate, and the other end extends out of the main body and is rotatably arranged.

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