An electronic lock

Abstract

A new type of electronic lock includes a handle and a body; a lock core rotor is provided in the handle, and a card point is provided on the side of the handle; a card hook is also protruding on the handle. An electromagnet is positioned in the body, which drives the card tongue to make a linear displacement, so that the card tongue extends and retracts. The shell of the electromagnet is provided with a permanent magnet to keep the card tongue in a retracted state; it also includes a first spring to keep the card tongue in a tendency to extend; when the card tongue extends, it cooperates with the card hook to keep the handle locked; when the card tongue retracts, it gives way to the card hook to unlock and open the handle; a reset mechanism is also provided in the body, which includes a reset rod and a trigger switch; the first end of the reset rod is set corresponding to the lock core rotor, and the second end is set corresponding to the trigger switch; the trigger switch is electrically connected to the electromagnet; it also includes a second spring to keep the reset rod in a tendency to move toward the lock core rotor. The present invention has an electromechanical interlocking function. When the electronic lock is in a powered state and the communication is normal, it does not support mechanical key unlocking, which is beneficial to state monitoring and can improve safety.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to an electronic lock which can realize electromechanical interlocking and is not only suitable for indoor use but also for outdoor use. Background Art

[0002] The outdoor electronic lock system is mainly used in outdoor communication cabinets such as outdoor base stations and street cabinets. It consists of a lock part and an electronic control part to achieve permission management and status monitoring of the opening and closing doors of outdoor cabinets.

[0003] Most electronic locks on the market do not have emergency keys, or have emergency keys but no electromechanical interlocking function. Electronic locks without emergency keys can only be opened by prying or destroying the lock when communication fails. Electronic locks with emergency keys can be opened by mechanical keys when communication is normal or fails, which is not conducive to status monitoring and has problems such as insufficient security.

[0004] Therefore, how to solve the above-mentioned deficiencies in the prior art has become a subject to be studied and solved by the present invention. Summary of the invention

[0005] The object of the present invention is to provide an electronic lock.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] An electronic lock comprises a handle and a body, which are rotatably connected and have two states: locked and unlocked;

[0008] A lock core rotor is rotatably positioned in the handle, the rotation axis of the lock core rotor is arranged along the thickness direction of the handle, and a clamping point is convexly provided on the side of the lock core rotor, and the circumferential position of the clamping point changes with the rotation of the lock core rotor; a hook is also convexly provided on the handle toward the rotation axis between the handle and the body;

[0009] An electromagnet is positioned in the body, and the electromagnet drives a tongue to move linearly along the length direction of the body through a connecting rod, so that the tongue has two states: extended and retracted. A permanent magnet is provided on the side of the electromagnet shell opposite to the tongue to maintain the retracted state of the tongue. A first spring is also included, and the first spring acts on the tongue to keep the tongue extending.

[0010] When the latch tongue is in the extended state, the latch tongue and the hook of the handle are engaged with each other, so that the latch tongue limits the hook. At this time, the handle cannot be opened and remains in a locked state.

[0011] When the latch tongue is in the retracted state, the latch tongue overcomes the action force of the first spring and is adsorbed on the permanent magnet of the electromagnet, so that the latch tongue gives way to the hook, and the handle is unlocked and can be opened;

[0012] The body is also provided with a reset mechanism, which includes a reset rod and a trigger switch; the reset rod is slidably positioned in the body along the length direction of the body, the first end of the reset rod is arranged corresponding to the side of the lock cylinder rotor, and the second end is arranged corresponding to the contact of the trigger switch; the trigger switch is fixed in the body and electrically connected to the electromagnet; and a second spring is also included, which acts on the reset rod to keep the reset rod moving toward the lock cylinder rotor;

[0013] The first end of the reset rod is connected to a seat body, and the latch tongue is positioned on the seat body, so that the latch tongue and the reset rod are linked;

[0014] When the lock core rotor rotates, the card point moves circumferentially with the rotation of the lock core rotor; when the card point rotates to contact the first end of the reset rod, the card point forces the reset rod to overcome the action of the second spring and move toward the trigger switch by the rotation force, so that the second end of the reset rod contacts the contact of the trigger switch;

[0015] At this time, if the electronic lock is in a powered-on state, the trigger switch triggers the electromagnet to work, and the latch tongue extends to keep the handle in a locked state;

[0016] If the electronic lock is in a power-off state, the trigger switch cannot trigger the electromagnet to work, and the latch tongue will retract following the displacement of the reset rod and be adsorbed on the permanent magnet of the electromagnet to unlock the handle.

[0017] The relevant contents in the above technical solution are explained as follows:

[0018] 1. In the above solution, the first spring is sleeved on the connecting rod.

[0019] 2. In the above solution, the second spring is sleeved on the reset rod.

[0020] 3. In the above scheme, the electromagnet is a bidirectional electromagnet; when the user issues an unlock command, the electromagnet drives the latch to retract; when the user uses the key to operate the lock cylinder rotor to unlock, if the electronic lock is powered on, the electromagnet will be triggered by the trigger switch to drive the latch to extend.

[0021] 4. The above solution further comprises an electric control unit, which is connected to the main body and comprises a signal receiving end and a signal sending end; the signal receiving end receives an unlocking signal; the signal sending end is electrically connected to the signal receiving end and the electromagnet.

[0022] 5. In the above solution, the signal receiving end is a wireless card reader, and the user unlocks the door by swiping the card.

[0023] 6. In the above solution, the signal receiving end is connected to a host computer, and the user unlocks the door by sending an unlocking signal through the host computer.

[0024] The working principle and advantages of the present invention are as follows:

[0025] The present invention discloses an electronic lock, comprising a handle and a body; a lock core rotor is arranged in the handle, and a card point is arranged on the side of the handle; a card hook is also convexly arranged on the handle. An electromagnet is positioned in the body, and the electromagnet drives the card tongue to make a linear displacement, so that the card tongue extends and retracts. The housing of the electromagnet is provided with a permanent magnet to maintain the retracted state of the card tongue; a first spring is also provided to keep the card tongue in a tendency to extend; when the card tongue extends, it cooperates with the card hook, and the handle remains locked; when the card tongue retracts, it gives way to the card hook, and the handle is unlocked and opened; a reset mechanism is also provided in the body, which comprises a reset rod and a trigger switch; the first end of the reset rod is arranged corresponding to the lock core rotor, and the second end is arranged corresponding to the trigger switch; the trigger switch is electrically connected to the electromagnet; a second spring is also provided to keep the reset rod in a tendency to move toward the lock core rotor; the first end of the reset rod is positioned and linked to the card tongue.

[0026] When the lock cylinder rotor rotates, the card point forces the reset rod to overcome the force of the second spring and move toward the trigger switch through the rotational force, so that the second end of the reset rod contacts the contact of the trigger switch; if the electronic lock is in the power-on state, the trigger switch triggers the electromagnet to work, and the card tongue extends to keep the handle locked; if the electronic lock is in the power-off state, the trigger switch cannot trigger the electromagnet to work, and the card tongue retracts with the reset rod and is adsorbed on the permanent magnet to unlock the handle.

[0027] Compared with the prior art, the present invention has an electromechanical interlocking function. When the electronic lock is powered and communicating normally, it does not support the mechanical key unlocking function. Mechanical unlocking can only be performed when the communication is abnormal or fails. This design is conducive to status monitoring and can improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attached Figure 1 It is a cross-sectional schematic diagram of the embodiment of the present invention when the handle is locked;

[0029] Attached Figure 2 This is a schematic diagram of the appearance of the handle when locked according to an embodiment of the present invention;

[0030] Attached Figure 3 It is a cross-sectional schematic diagram of an embodiment of the present invention when the handle is opened;

[0031] Attached Figure 4 This is a schematic diagram of the appearance of an embodiment of the present invention when the handle is opened;

[0032] Attached Figure 5 It is a cross-sectional schematic diagram of the key unlocking according to the embodiment of the present invention;

[0033] Attached Figure 6 It is an exploded diagram of an embodiment of the present invention.

[0034] In the above drawings: 1. handle; 2. body; 3. lock cylinder rotor; 4. lock hole; 5. locking point; 6. hook; 7. electromagnet; 8. connecting rod; 9. locking tongue; 10. permanent magnet; 11. first spring; 12. reset rod; 13. trigger switch; 14. rotating shaft; 15. contact point; 16. second spring; 17. base; 18. wireless card reader. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0036] Embodiment: The present invention will be clearly described below with diagrams and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0037] The terms used herein are only for describing specific embodiments and are not intended to be limiting of the present invention. Singular forms such as "a", "this", "here", "this" and "the" as used herein also include plural forms.

[0038] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit the present case. They are only used to distinguish components or operations described with the same technical terms.

[0039] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct physical contact with each other, or being in indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0040] The terms “include,” “including,” “have,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0041] The terms used in this document generally have the ordinary meaning of each term used in this field, in the context of the case and in the specific context, unless otherwise noted. Certain terms used to describe the present invention will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the present invention.

[0042] The terms "front", "back", "upper" and "lower" used in this article are directional terms. In this case, they are only used to illustrate the positional relationship between the structures and are not used to limit the protection reaction of this case and the specific direction during actual implementation.

[0043] See attached Figures 1 to 6 As shown, an electronic lock includes a handle 1 and a body 2, the front ends of which are rotatably connected via a rotating shaft 14, and have two states: locked and unlocked. When unlocked, the handle 1 can be opened upward relative to the body 2 and can be rotated left and right; when locked, the handle 1 is downwardly coupled to the body 2 and remains closed.

[0044] A lock core rotor 3 is rotatably positioned at the rear end of the handle 1, and the rotation axis of the lock core rotor 3 is arranged along the thickness direction of the handle 1. A lock hole 4 is provided at the upper end of the lock core rotor 3 for inserting a key. A clamping point 5 is convexly provided on the side of the lock core rotor 3, and the circumferential position of the clamping point 5 changes with the rotation of the lock core rotor 3; a hook 6 is also convexly provided on the lower side of the handle 1 toward the rotation axis 14.

[0045] An electromagnet 7 is positioned in the body 2, and the electromagnet 7 drives a tongue 9 to make a linear displacement in the front-to-back direction along the length direction of the body 2 through a connecting rod 8, so that the tongue 9 has two states of extension and retraction; wherein, a permanent magnet 10 is provided on the side of the shell of the electromagnet 7 opposite to the tongue 9, so as to maintain the retracted state of the tongue 9; and also includes a first spring 11, which is sleeved on the connecting rod 8 to keep the tongue 9 in the tendency to extend; the magnetic attraction of the permanent magnet 10 on the tongue 9 is greater than the tension of the first spring 11.

[0046] like Figure 1 , 2 As shown, when the latch tongue 9 is in the extended state, the latch tongue 9 is engaged with the hook 6 of the handle 1, so that the latch tongue 9 limits the hook 6. At this time, the handle 1 cannot be opened and remains in the locked state.

[0047] like Figure 3 , 4 As shown, when the latch tongue 9 is in the retracted state, the latch tongue 9 overcomes the force of the first spring 11 and is adsorbed on the permanent magnet 10 of the electromagnet 7, so that the latch tongue 9 gives way to the hook 6, and the handle 1 is unlocked and can be opened.

[0048] The body 2 is also provided with a reset mechanism, which includes a reset rod 12 and a trigger switch 13, and the trigger switch 13 may be a micro switch. The reset rod 12 is slidably positioned in the body 2 along the length direction of the body 2, and the first end (i.e., the rear end) of the reset rod 12 is arranged corresponding to the side of the lock cylinder rotor 3, and the second end (i.e., the front end) is arranged corresponding to the contact 15 of the trigger switch 13; the trigger switch 13 is fixed in the body 2 and electrically connected to the electromagnet 7, and is used to send a trigger signal to the electromagnet 7 to work. A second spring 16 is also included, and the second spring 16 is sleeved on the reset rod 12 to keep the reset rod 12 in the tendency to move toward the lock cylinder rotor 3.

[0049] A seat body 17 is connected to the first end of the reset rod 12 , and the latch tongue 9 is positioned on the seat body 17 , so that the latch tongue 9 and the reset rod 12 are linked.

[0050] like Figure 5 As shown, when the lock core rotor 3 is rotated by the operation of the key, the card point 5 is displaced circumferentially with the rotation of the lock core rotor 3; when the card point 5 is rotated to contact the first end of the reset rod 12, the card point 5 forces the reset rod 12 to overcome the force of the second spring 16 and displace toward the trigger switch 13 by the rotational force, so that the second end of the reset rod 12 contacts the contact 15 of the trigger switch 13.

[0051] At this time, if the electronic lock is powered on, the trigger switch 13 triggers the electromagnet 7 to work, and the latch tongue 9 extends to keep the handle 1 locked. That is, when the electronic lock is powered on, the key cannot be used to mechanically unlock the lock. This ensures that the lock can only be unlocked by swiping a card, which helps monitor unlocking information, such as the unlocker's ID, unlocking time, etc., thereby ensuring the reliability and safety of the cabinet.

[0052] If the electronic lock is in a power-off state, the trigger switch 13 cannot trigger the electromagnet 7 to work, and the latch tongue 9 will retract following the displacement of the reset rod 12 and be adsorbed on the permanent magnet 10 of the electromagnet 7 to unlock the handle 1. That is, when the electronic lock is in a power-off state, the key can be used to mechanically unlock the lock, so as to cope with special situations such as power outages and failures.

[0053] The reset mechanism is used to reset the latch tongue 9 so that the latch tongue 9 returns to the matching state with the hook 6; the reset mechanism cooperates with the electromagnet 7 to form an electromechanical interlock.

[0054] The electromagnet 7 is a bidirectional electromagnet. When the user issues an unlock command, the electromagnet 7 drives the latch tongue 9 to retract. The retraction retention time can be set. After a period of time, it will extend again so that the electronic lock automatically returns to the locked state. When the user uses the key to operate the lock cylinder rotor 3 to unlock, if the electronic lock is powered on, the electromagnet 7 will be triggered by the trigger switch 13 to drive the latch tongue 9 to extend.

[0055] Among them, it also includes an electric control unit, which is connected to the main body and includes a signal receiving end and a signal sending end; the signal receiving end receives an unlocking signal, and the signal sending end is connected to the signal receiving end and the electromagnet 7 through wired or wireless connection. When the signal receiving end receives the unlocking signal, the signal sending end triggers the electromagnet 7 to work.

[0056] The signal receiving end is a wireless card reader 18, and the user unlocks the door by swiping the card.

[0057] Alternatively, the signal receiving end is connected to a host computer (such as a PC), and the user sends an unlocking signal through the host computer to unlock the door.

[0058] Compared with the prior art, the present invention has an electromechanical interlocking function. When the electronic lock is powered and communicating normally, it does not support the mechanical key unlocking function. Mechanical unlocking can only be performed when the communication is abnormal or fails. This design is conducive to status monitoring and can improve safety.

[0059] The present invention can realize background remote unlocking, card unlocking (power on), and mechanical key unlocking (only when the electronic lock is powered off or faulty). The present invention can configure unlocking permissions and can have door lock status prompts (indicator light, buzzer, etc.).

[0060] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic lock, characterized in that: It includes a handle and a body, which are rotatably connected and have two states: locked and unlocked; A lock core rotor is rotatably positioned in the handle, the rotation axis of the lock core rotor is arranged along the thickness direction of the handle, and a clamping point is convexly provided on the side of the lock core rotor, and the circumferential position of the clamping point changes with the rotation of the lock core rotor; a hook is also convexly provided on the handle toward the rotation axis between the handle and the body; An electromagnet is positioned in the body, and the electromagnet drives a tongue to move linearly along the length direction of the body through a connecting rod, so that the tongue has two states: extended and retracted. A permanent magnet is provided on the side of the electromagnet shell opposite to the tongue to maintain the retracted state of the tongue. A first spring is also included, and the first spring acts on the tongue to keep the tongue extending. When the latch tongue is in the extended state, the latch tongue and the hook of the handle are engaged with each other, so that the latch tongue limits the hook. At this time, the handle cannot be opened and remains in a locked state. When the latch tongue is in the retracted state, the latch tongue overcomes the action force of the first spring and is adsorbed on the permanent magnet of the electromagnet, so that the latch tongue gives way to the hook, and the handle is unlocked and can be opened; The body is also provided with a reset mechanism, which includes a reset rod and a trigger switch; the reset rod is slidably positioned in the body along the length direction of the body, the first end of the reset rod is arranged corresponding to the side of the lock cylinder rotor, and the second end is arranged corresponding to the contact of the trigger switch; the trigger switch is fixed in the body and electrically connected to the electromagnet; and a second spring is also included, which acts on the reset rod to keep the reset rod moving toward the lock cylinder rotor; The first end of the reset rod is connected to a seat body, and the latch tongue is positioned on the seat body, so that the latch tongue and the reset rod are linked; When the lock core rotor rotates, the card point moves circumferentially with the rotation of the lock core rotor; when the card point rotates to contact the first end of the reset rod, the card point forces the reset rod to overcome the action of the second spring and move toward the trigger switch by the rotation force, so that the second end of the reset rod contacts the contact of the trigger switch; At this time, if the electronic lock is in a powered-on state, the trigger switch triggers the electromagnet to work, and the latch tongue extends to keep the handle in a locked state; If the electronic lock is in a power-off state, the trigger switch cannot trigger the electromagnet to work, and the latch tongue will retract following the displacement of the reset rod and be adsorbed on the permanent magnet of the electromagnet to unlock the handle.

2. The electronic lock according to claim 1, characterized in that: The first spring is sleeved on the connecting rod.

3. The electronic lock according to claim 1, characterized in that: The second spring is sleeved on the reset rod.

4. The electronic lock according to claim 1, characterized in that: The electromagnet is a bidirectional electromagnet; when the user issues an unlocking command, the electromagnet drives the latch tongue to retract; when the user uses a key to operate the lock cylinder rotor to unlock, if the electronic lock is powered on, the electromagnet will be triggered by the trigger switch to work and drive the latch tongue to extend.

5. The electronic lock according to claim 4, characterized in that: It also includes an electric control unit, which is connected to the main body and includes a signal receiving end and a signal sending end; the signal receiving end receives an unlocking signal; the signal sending end is electrically connected to the signal receiving end and the electromagnet.

6. The electronic lock according to claim 5, characterized in that: The signal receiving end is a wireless card reader, and the user unlocks the door by swiping the card.

7. The electronic lock according to claim 5, characterized in that: The signal receiving end is connected to a host computer, and the user unlocks the door by sending an unlocking signal through the host computer.

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