Multi-motor matched lock for door

Abstract

The utility model discloses a multi-motor cooperation door lock which comprises a door lock door body and intelligent equipment, a spring bolt comprises a main spring bolt and an auxiliary spring bolt, the main spring bolt and the auxiliary spring bolt are arranged in parallel in a sliding mode, a first abutting piece is arranged between the main spring bolt and the auxiliary spring bolt, a second abutting piece used for abutting against the first abutting piece is fixedly arranged on the main spring bolt, and the second abutting piece is fixedly arranged on the auxiliary spring bolt. Pressure sensors are fixedly arranged on the two sides of the first abutting piece, a main motor and an auxiliary motor which control the main spring bolt and the auxiliary spring bolt to stretch out and draw back respectively are further arranged in the door lock body, the main motor and the auxiliary motor are connected with intelligent equipment through circuits, and the auxiliary motor is set to be started preferentially compared with the main motor. When a door is locked and opened, the pressure sensor can send out a signal after bearing enough pressure, the main lock tongue begins to move at the moment, the door lock is normal, and when a lawbreaker picks the lock and the pressure sensor does not send out a signal, the main lock tongue moves due to damage of the lawbreaker. At the moment, the intelligent device can send out an alarm signal to warn a user.

Description

A multi-motor door lock Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a multi-motor door lock. Background Technology

[0002] An electric door lock is a type of lock that is powered by electricity. It mainly controls the extension or retraction of the bolt by switching the current on and off, thereby realizing the functions of locking and unlocking the door. It is more convenient than locks that are manually controlled by a key.

[0003] However, existing electric door locks are usually equipped with only a single motor. This motor controls the extension and retraction of the bolt after receiving instructions from the intelligent control device to achieve the functions of locking and unlocking the door. In this case, if no criminals break the lock, only the single bolt needs to be damaged. Therefore, door locks with a single motor are relatively easy for criminals to break, and their security is low. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-motor door lock to solve the above-mentioned problems.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a multi-motor door lock, including a door lock body and an intelligent device mounted on the door lock body. The door lock body has an outer handle and an inner handle movably mounted on both sides. The door lock body also has a lock cylinder and a bolt connected to the lock cylinder. The lock cylinder is installed in the middle of the door lock body. The bolt is slidably mounted within the door lock body, with one end facing the lock cylinder and the other end extending to the outside of the door lock body. The bolt includes a main bolt and a secondary bolt, which are slidably mounted parallel to each other. A first abutment is provided between the main bolt and the secondary bolt, with one end rotatably mounted on the secondary bolt and the other end extending to the main bolt. A second abutment is fixed on the main bolt to abut against the first abutment. Pressure sensors are fixed on both sides of the first abutment. The pressure sensor is connected to the smart device via an electrical signal. The door lock body is also equipped with a main motor and a secondary motor that control the extension and retraction of the main bolt and the secondary bolt, respectively. Both the main motor and the secondary motor are connected to the smart device via a circuit, and it is set that the secondary motor starts before the main motor when the smart device receives the unlock signal.

[0007] In one embodiment, an anti-pry member is fixed at the end of the main locking tongue away from the main motor, and in the locked state, the secondary locking tongue abuts against the anti-pry member.

[0008] In one embodiment, the anti-pry member has a slot for the secondary lock tongue to be inserted. A sensor alarm device is fixed at the edge of the slot near the outside. When the secondary lock tongue is extended to its longest end, it is inserted into the slot but does not abut against the inner side of the slot.

[0009] In one embodiment, the slot is formed in a cross shape, and the end of the secondary locking tongue that extends into the slot is also formed in a cross shape.

[0010] In one embodiment, when the secondary locking tongue is embedded in the slot, the outer surface of its "+" shaped portion is 0.1-0.3 mm away from the inner surface of the slot.

[0011] In one embodiment, a plurality of pressure sensors are fixedly installed in the slot. The pressure sensors are connected to a sensing alarm device via a circuit, and the secondary locking tongue presses tightly against the pressure sensors when it is at its longest extended end.

[0012] In one embodiment, the pressure sensor includes a silicone housing and a pressure sensing element, with the silicone housing covering the outside of the pressure sensing element.

[0013] In one embodiment, both the tail end of the outer handle and the tail end of the inner handle are fixed with anti-detachment handles.

[0014] The advantages or beneficial effects of the above technical solutions include at least the following:

[0015] Firstly, in this utility model, a main bolt and a secondary bolt are assembled in the door lock body, and their extension and retraction are controlled by a main motor and a secondary motor, respectively. Due to the difference in the starting sequence, the secondary bolt will move before the main bolt. When locking the door, the first abutment will flip under pressure and pass over the second abutment. At this time, the pressure sensor on the first abutment will send a signal, and the main bolt will start to move, indicating that the door lock is normal. When opening the door, the secondary bolt will also move first, and the first abutment will return and pass over the second abutment. At the same time, the pressure sensor will send a signal again, and the main bolt will start to move. When criminals try to pick the lock, before the pressure sensor senses sufficient pressure and sends a signal, the main bolt will move due to the criminals' damage. At this time, the smart device will issue an alarm signal to remind the user.

[0016] Secondly, this utility model is equipped with several pressure sensors connected to the induction alarm device. In the normal locked state, the secondary lock tongue will press against the pressure sensors. At this time, the pressure sensors will send a signal to the induction alarm device to indicate that the door lock is normal. If the pressure sensors do not receive sufficient pressure, an alarm signal will be generated to indicate to the user whether the door is properly locked or whether the door lock is malfunctioning, thereby further improving the security of the door lock. Attached Figure Description

[0017] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0018] Figure 1 is a schematic diagram of the external structure of the door lock body in this utility model.

[0019] Figure 2 is an enlarged schematic diagram of the structure of part A in Figure 1.

[0020] Figure 3 is a cross-sectional structural diagram of the door lock body in this utility model.

[0021] Figure 4 is an enlarged schematic diagram of the structure in part B of Figure 3.

[0022] Figure 5 is a schematic diagram of the overall external structure of the secondary locking tongue in this utility model.

[0023] Reference numerals in the attached diagram: 1. Door lock body; 2. Smart device; 3. Outer handle; 4. Inner handle; 5. Lock cylinder; 6. Main bolt; 7. Secondary bolt; 8. First abutment; 9. Secondary abutment; 10. Pressure sensor; 11. Main motor; 12. Secondary motor; 13. Anti-pry component; 14. Slot; 15. Induction alarm device; 16. Pressure sensor; 1601. Silicone shell; 1602. Pressure sensor element; 17. Anti-detachment handle. Detailed Implementation

[0024] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0025] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0027] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0028] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0029] Referring to Figures 1-3, a multi-motor door lock includes a door lock body 1 and a smart device 2 mounted on the door lock body 1. This smart device 2 processes unlocking signals, including but not limited to NFC access cards, facial recognition, fingerprint recognition, password unlocking, and mobile phone unlocking signals. The door lock body 1 has an outer handle 3 and an inner handle 4 movably mounted on both sides. The door lock body 1 also has a lock cylinder 5 and a bolt connected to the lock cylinder 5. The lock cylinder 5 is installed in the middle of the door lock body 1, and the bolt is slidably mounted inside the door lock body 1, with one end facing the lock cylinder 5 and the other end extending to the outside of the door lock body 1. When the inner handle 4 rotates and a key is inserted... When rotated, the bolt can be directly extended or retracted to open the door. The bolt includes a main bolt 6 and a secondary bolt 7, which are arranged in parallel sliding configuration. A first abutment 8 is provided between the main bolt 6 and the secondary bolt 7, with one end rotatably mounted on the secondary bolt 7 and the other end extending to the main bolt 6. A second abutment 9 is fixed on the main bolt 6 to abut against the first abutment 8. Pressure sensors 10 are fixed on both sides of the first abutment 8, and the pressure sensors 10 are connected to the smart device 2 via electrical signals. The door lock body 1 also includes a main motor 11 and a secondary motor 12 that control the extension and retraction of the main bolt 6 and the secondary bolt 7, respectively. The main motor 11 and the secondary motor 12 are packaged together. Including but not limited to DC motors, stepper motors, or servo motors, both the main motor 11 and the auxiliary motor 12 are connected to the smart device 2 via a circuit (not shown in the figure). When the smart device 2 receives an unlock signal, it activates the main motor 11 and the auxiliary motor 12 to extend and retract the main latch 6 and the auxiliary latch 7. Specifically, the auxiliary motor 12 is set to start before the main motor 11 after the smart device 2 receives the unlock signal. Under this setting, when the smart device 2 receives the unlock signal, the auxiliary latch 7 will move before the main latch 6. Thus, during locking or unlocking, the auxiliary latch 7 moves before the main latch 6. At this time, the first abutment 8 moves to contact the second abutment 9. The lock is pressed against each other, and then flips over the second abutment 9 under the pressure. At the same time, the pressure sensor 10 will send a signal to the smart device 2 after receiving sufficient pressure, indicating that the door lock is operating normally. At this time, the main bolt 6 begins to move. When criminals try to pry open the door, the main bolt 6 will move due to prying even though the pressure sensor 10 has not sent a signal. The smart device 2 will then send an alarm signal to deter criminals, including but not limited to alarm sound and vibration, and transmit the alarm signal to the user's mobile phone to warn that the door lock is not operating normally. This increases the difficulty for criminals to successfully pry open the door and improves the security of the door lock.

[0030] Referring to Figures 2 and 3, an anti-pry member 13 is fixed at the end of the main latch 6 away from the main motor 11. In the locked state, the secondary latch 7 abuts against the anti-pry member 13. With this setting, if a criminal tries to pry the lock while the door is locked, he can only damage the anti-pry member 13 and the main latch 6 first. This prevents the criminal from prying the secondary latch 7 first, causing it to move to the pressure sensor 10 and generate a signal, which would cause the smart device 2 to mistakenly believe that the door lock is in a normal unlocked state and not issue an alarm signal, thus further improving the security of the door lock.

[0031] Referring to Figures 3 and 4, the anti-pry member 13 has a slot 14 for the secondary locking tongue 7 to be inserted. A sensor alarm device is fixed to the edge of the slot 14 near the outside. When the secondary locking tongue 7 extends to its longest end, it is inserted into the slot 14 but does not abut against the inner side of the slot 14. With this configuration, when locking the door, although the secondary locking tongue 7 will move before the main locking tongue 6, it will slide within the slot 14 and will not press against the anti-pry member 13. This prevents the anti-pry member 13 from being repeatedly pressed against by the secondary locking tongue 7 after prolonged use. The design reduces wear and tear, and the extension end of the auxiliary motor 12 will not be damaged due to obstruction during extension, thus extending the durability of the door lock. Furthermore, since the auxiliary bolt 7 moves before the main bolt 6, the main bolt 6 only begins to move after the auxiliary bolt 7 disengages from the slot 14. Therefore, when the induction alarm device detects that the main bolt 6 begins to move before the auxiliary bolt 7 disengages from the slot 14, it will issue an alarm signal, thereby increasing the measures for issuing alarm signals to further enhance the security of the door lock.

[0032] Referring to Figures 4 and 5, the slot 14 is shaped like a cross, and the end of the secondary latch 7 that extends into the slot 14 is also shaped like a cross. This design restricts the secondary latch 7 to move horizontally parallel to the main latch 6 within the slot 14, preventing criminals from breaking the lock by prying the secondary latch 7 vertically to separate it from the main latch 6.

[0033] In one specific embodiment, when the secondary locking tongue 7 is embedded in the slot 14, the outer surface of its "+" shaped portion is 0.1-0.3mm away from the inner surface of the slot 14. With this setting, when the secondary locking tongue 7 moves in the slot 14, its outer surface will not rub against the inner surface of the slot 14, thus preventing wear on the secondary locking tongue 7 and the anti-pry member 13.

[0034] Referring to Figure 4, several pressure sensors 16 are fixedly installed in the slot 14. The pressure sensors 16 are connected to the alarm device 15 via a circuit (not shown in the figure). When the secondary latch 7 is at its longest extended end, it presses firmly against the pressure sensor 16. With this configuration, in the normal locked state, the secondary latch 7 presses against the pressure sensor 16, and the alarm device 15 transmits a signal to the smart device 2, indicating that the door has been successfully locked. If the door is closed and the secondary latch 7 does not provide sufficient pressure to the pressure sensor 16, the pressure sensor 16 will transmit a signal to the alarm device, and the smart device 2 will then warn the user that the door may not have been successfully locked.

[0035] Referring to Figure 4, the pressure sensor 16 includes a silicone shell 1601 and a pressure sensor element 1602. The silicone shell 1601 covers the outside of the pressure sensor element 1602. This arrangement makes the pressure sensor 16 more elastic, reducing wear caused by repeated squeezing by the secondary locking tongue 7 after long-term use, thereby extending the durability of the pressure sensor 16.

[0036] Referring to Figure 1, both the outer handle 3 and the inner handle 4 are fixed with anti-slip handles 17. With this setting, when the user's hand is slippery, the anti-slip handle 17 can be used as a fulcrum to rotate the outer handle 3 or the inner handle 4, so as to prevent the outer handle 3 or the inner handle 4 from accidentally slipping off when the user rotates the outer handle 3 or the inner handle 4, which would cause the outer handle 3 or the inner handle 4 to bounce back and injure the user.

[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A multi-motor door lock, comprising a door lock body (1) and an intelligent device (2) mounted on the door lock body (1), wherein an outer handle (3) and an inner handle (4) are movably disposed on both sides of the door lock body (1), and the door lock body (1) is further provided with a lock cylinder (5) and a lock tongue that is throttledly connected to the lock cylinder (5), wherein, The lock cylinder (5) is installed in the middle of the door lock body (1). The lock tongue is slidably disposed inside the door lock body (1), with one end facing the lock cylinder (5) and the other end extending to the outside of the door lock body (1). The lock tongue is characterized in that: the lock tongue includes a main lock tongue (6) and a secondary lock tongue (7), and the main lock tongue (6) and the secondary lock tongue (7) are slidably disposed in parallel. A first abutment (8) is disposed between the main lock tongue (6) and the secondary lock tongue (7), one end of which is rotatably disposed on the secondary lock tongue (7) and the other end extends to the main lock tongue (6). The main lock tongue (6) is fixed with a first abutment for abutting the first abutment. The second abutment (9) of the first abutment (8) is provided with pressure sensors (10) fixed on both sides of the first abutment (8). The pressure sensors (10) are connected to the smart device (2) by electrical signals. The door lock body (1) is also provided with a main motor (11) and a secondary motor (12) that control the extension and retraction of the main bolt (6) and the secondary bolt (7) respectively. The main motor (11) and the secondary motor (12) are both connected to the smart device (2) by circuits, and it is set that when the smart device (2) receives the unlocking signal, the secondary motor (12) starts first before the main motor (11).

2. A multi-motor door lock according to claim 1, characterized in that: The main locking tongue (6) is fixed with an anti-pry member (13) at the end away from the main motor (11). When the door is locked, the secondary locking tongue (7) abuts against the anti-pry member (13).

3. A multi-motor door lock according to claim 2, characterized in that: The anti-pry member (13) has a slot (14) for the secondary lock tongue (7) to be inserted. The slot (14) is fixed with an alarm device near the edge of the outside. When the secondary lock tongue (7) extends to its longest end, it is inserted into the slot (14) and does not abut against the inner side of the slot (14).

4. A multi-motor door lock according to claim 3, characterized in that: The slot (14) is opened in the shape of a cross, and the end of the secondary locking tongue (7) that extends into the slot (14) is also set in the shape of a cross.

5. A multi-motor door lock according to claim 4, characterized in that: When the secondary locking tongue (7) is inserted into the slot (14), the outer surface of its "+" shaped part is 0.1-0.3 mm away from the inner surface of the slot (14).

6. A multi-motor door lock according to claim 3, characterized in that: The slot (14) is fixed with a plurality of pressure sensors (16), which are connected to the alarm device (15) via a circuit, and the secondary locking tongue (7) presses tightly against the pressure sensor (16) when it is at its longest extended end.

7. A multi-motor door lock according to claim 6, characterized in that: The pressure sensor (16) includes a silicone shell (1601) and a pressure sensor element (1602), with the silicone shell (1601) covering the outside of the pressure sensor element (1602).

8. A multi-motor door lock according to claim 1, characterized in that: Both the outer handle (3) and the inner handle (4) are fixed with anti-detachment handles (17).

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