CN211287064U - Can detect lock that key inserted and intelligent key cabinet thereof - Google Patents
Can detect lock that key inserted and intelligent key cabinet thereof Download PDFInfo
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- CN211287064U CN211287064U CN201922123932.6U CN201922123932U CN211287064U CN 211287064 U CN211287064 U CN 211287064U CN 201922123932 U CN201922123932 U CN 201922123932U CN 211287064 U CN211287064 U CN 211287064U
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Abstract
A door lock capable of detecting key insertion and an intelligent key cabinet thereof are provided, wherein a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove are respectively arranged at the inner part of a door, a PCB (printed circuit board), a battery and an electromagnet are respectively mounted in the first mounting groove, an MCU and a contactor are mounted on the PCB, the control end of the contactor is in communication connection with the signal end of the MCU, the stationary contact of the contactor is in conductive connection with the electrode of the battery, and the movable contact is in conductive connection with the power connection end of the electromagnet; the electromagnet is provided with a telescopic shaft, and one end of the telescopic shaft passes through the heat conduction box and the partition plate and then is clamped and assembled with the notch on the lock cylinder; the partition plate is fixed in the first mounting groove; a hollow lock hole is formed in the lock cylinder, the lock hole is communicated with one end of a second mounting groove, and the other end of the second mounting groove penetrates through the door; and the emitter and the receiver are respectively installed on two sides of the second installation groove, the emitter emits laser to the receiver, the receiver generates potential change after receiving the laser, and the signal ends of the receiver and the emitter are in communication connection with the signal end of the MCU.
Description
Technical Field
The utility model relates to an intelligence key cabinet especially relates to a can detect key male lock and intelligence key cabinet thereof.
Background
At present, various intelligent locks are in endless, and various high and new technologies are gradually applied to the intelligent locks. Smart locks, however, typically leave a mechanical key slot for opening with a mechanical key in an emergency. However, after the intelligent lock is used to open through a password or a fingerprint, the key is easy to be forgotten to be pulled out, and in order to prevent the lock from being penetrated, a plugging device or a limiting structure is arranged in the lock cylinder or the lock hole and is powered on and driven by electric power to open. However, these devices cannot be powered on all the time, which causes a large power consumption. But current door locks are powered on at substantially all times. And because do not carry out effectual control, can't long-rangely know whether have the key to insert in the key hole to in time discover to pass through the lock.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a can detect key male lock and intelligent key cabinet is provided, its lock can detect whether have the key to insert.
In order to achieve the purpose, the utility model provides a can detect lock that key inserted, it is installed on the door for the switching of control door, the inside first mounting groove, second mounting groove, third mounting groove, fourth mounting groove of being provided with respectively of door, install PCB board, battery, electro-magnet in the first mounting groove respectively, MCU, contactor are installed to the PCB board, the control end of contactor is connected with MCU's signal end communication, the stationary contact of contactor is connected with the electrode electricity conduction of battery, the movable contact is connected with the electricity connection end electricity connection of electro-magnet;
the electromagnet is provided with a telescopic shaft, and one end of the telescopic shaft passes through the heat conduction box and the partition plate and then is clamped and assembled with the notch on the lock cylinder; the partition plate is fixed in the first mounting groove; a hollow lock hole is formed in the lock cylinder, the lock hole is communicated with one end of a second mounting groove, and the other end of the second mounting groove penetrates through the door;
the laser sensor is characterized in that a transmitter and a receiver are respectively installed on two sides of the second installation groove, the transmitter transmits laser to the receiver, the receiver generates potential change after receiving the laser, signal ends of the receiver and the transmitter are in communication connection with a signal end of the MCU, and the transmitter and the receiver jointly form a laser sensor.
Preferably, a limit ring is further fixed on the telescopic shaft, a first pressure spring is sleeved on a part of the telescopic shaft, which is located between the limit ring and the partition plate, and the first pressure spring is used for providing elasticity to the notch for the telescopic shaft.
Preferably, a detection shaft is fixed at one end of the lock cylinder, which is far away from the second mounting groove, one end of the detection shaft is installed in the third mounting groove and is fixedly assembled with the cam, and the cam is respectively provided with a long shaft end and a short shaft end; the sliding block is installed at the bottom of the third installation groove in a clamping and sliding mode, the sliding block is fixedly assembled with one end of the sliding rod, the other end of the sliding rod penetrates through the second pressure spring and then enters the fourth installation groove to be fixedly assembled with the trigger block, the trigger block is right opposite to the trigger end of the microswitch, and the signal end of the microswitch is in communication connection with the signal end of the MCU.
Preferably, when the long shaft end is tightly attached to the sliding block, the long shaft end drives the sliding block to move downwards against the elastic force of the second pressure spring so as to trigger the microswitch by the trigger block, and the MCU judges that the microswitch is in an unlocked state.
Preferably, the protection device comprises a heat conduction box, the telescopic shaft and the heat conduction box are tightly clamped and can be assembled in an axial sliding mode, and the heat conduction box is made of a material with a high heat conductivity coefficient;
the heat conduction box is internally provided with a hollow heat transfer cavity, and heat conduction oil is filled in the heat transfer cavity; the heat transfer cavity is internally provided with a heat transfer rod, the heat transfer rod is in heat conduction connection with a memory spring, the memory spring is arranged in an induction cavity, the induction cavity is arranged in the induction tube, the induction tube is fixed in a first mounting groove, the inside of the induction cavity is clamped and slidably provided with a push plate, the push plate is contacted with one end of the memory spring, the other end of the memory spring is in heat conduction connection with the heat transfer rod, and the end is assembled and fixed with the inner wall of the induction cavity;
a power switch is fixed on one end of the induction cavity, which is far away from the memory spring, and the trigger end of the power switch is opposite to the push plate; the power switch is in a closed state in an initial state and is in an open state after being triggered, and the power switch is connected between the electromagnet and the movable contact of the contactor in series.
Preferably, the memory spring is elongated at 60-80 degrees Celsius and shortened below 50 degrees Celsius.
The utility model also discloses an intelligent key cabinet, its application has above-mentioned lock.
The utility model has the advantages that: the utility model has simple structure, and the lock core is limited by the telescopic shaft, thus effectively preventing the lock from being penetrated; in addition, whether a key is inserted or not is detected through the infrared sensor, whether the key is inserted for a long time or not is judged through the power switch and the memory spring, and therefore the key is judged to be pulled out and a user is reminded in time, and the key can be prevented from being lost or being taken by a lawless person.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of fig. 1 at F1.
Fig. 3 is an enlarged view of fig. 1 at F2.
Fig. 4 is a schematic cross-sectional structure of the cam.
Fig. 5 is a schematic sectional structure diagram of the lock cylinder.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, the door lock of the present embodiment includes a door 100, a first mounting groove 101, a second mounting groove 102, a third mounting groove 103, and a fourth mounting groove 104 are respectively disposed inside the door 100, a PCB 210, a battery 220, and an electromagnet 230 are respectively mounted in the first mounting groove 101, an MCU and a contactor are mounted on the PCB 210, a control end of the contactor is in communication connection with a signal end of the MCU, a stationary contact of the contactor is in conductive connection with an electrode of the battery, and a movable contact is in conductive connection with a power connection end of the electromagnet, so as to control whether the electromagnet is powered on or not through the contactor;
the electromagnet 230 is provided with a telescopic shaft 231, one end of the telescopic shaft 231 penetrates through the heat conduction box 530 and the partition plate 120 and then is clamped and assembled with the notch 312 on the lock cylinder 310, and the notch 312 is matched with the end part of the telescopic shaft 231 to limit the rotation angle of the lock cylinder 310, so that the function of preventing through locking is achieved;
the partition plate 120 is fixed in the first installation groove 101, the telescopic shaft 231 is further fixed with a limit ring 232, a portion of the telescopic shaft 230, which is located between the limit ring 232 and the partition plate 120, is sleeved with a first pressure spring 410, and the first pressure spring 410 is used for providing elastic force for pushing the telescopic shaft 231 towards the notch 312.
The lock core 310 is provided with a hollow lock hole 311 therein, the lock hole 311 is communicated with one end of the second installation groove 102, and the other end of the second installation groove 102 penetrates through the door 100. When the mechanical key is used, the mechanical key passes through the second mounting groove 102 and then is loaded into the lock hole 311, so that the lock cylinder is opened, and after the lock cylinder 310 is opened, the key can drive the lock cylinder 310 to rotate so as to unlock.
A detection shaft 320 is fixed at one end of the lock cylinder, which is far away from the second mounting groove 102, one end of the detection shaft 320 is installed in the third mounting groove 103 and is fixedly assembled with the cam 330, the cam 330 is respectively provided with a long shaft end 331 and a short shaft end 332, the long shaft end 331 is the end farthest away from the axis of the detection shaft, and the short shaft end 332 is the end closest to the axis of the detection shaft; the bottom of the third mounting groove 103 is clamped and slidably provided with a sliding block 340, the sliding block 340 is fixedly assembled with one end of a sliding rod 350, the other end of the sliding rod 350 passes through a second pressure spring 360 and then enters a fourth mounting groove 104 to be fixedly assembled with a trigger block 370, the trigger block 370 is opposite to the trigger end of the micro switch 260, and the signal end of the micro switch 260 is in communication connection with the signal end of the MCU; when the long shaft end is tightly attached to the sliding block 340, the long shaft end drives the sliding block 340 to overcome the elastic force of the second pressure spring 360 to move downwards, so that the trigger block triggers the micro switch, and the MCU judges that the micro switch is in an unlocked state.
The two sides of the second mounting groove 102 are respectively provided with a transmitter 251 and a receiver 252, the transmitter 251 transmits laser to the receiver, the receiver 252 generates potential change after receiving the laser, and the signal ends of the receiver 252 and the transmitter 251 are in communication connection with the signal end of the MCU. The transmitter 251 and the receiver 252 together form a laser sensor. When the key passes between transmitter 251, receiver 252, the receiver takes place the potential variation, and MCU judges that the key inserts, then control contactor closure, and the electro-magnet is electrified to draw out the scarce groove with the telescopic shaft down, then just can rotate the lock core and unblank. When the lock cylinder is rotated, the trigger state of the microswitch is relieved, and the MCU judges that the lock is unlocked. At this time, the state can be sent to the mobile terminal (smartphone) or the server through the wireless module (WIFI module or LORA module, etc.) on the PCB. In this way, power supply according to needs is realized, so that energy consumption can be reduced, and whether the lock is completely locked or not can be timely found.
Further, in order to prevent the key from being burnt out or lost due to the fact that the key is not taken out of the keyhole in time, the applicant also designs a protection device for automatically powering off and warning by detecting the heating value of the electromagnet, wherein the protection device comprises a heat conduction box 530, the telescopic shaft 231 is tightly clamped and attached to the heat conduction box and can be axially assembled in a sliding manner, and the heat conduction box is made of a material with high heat conductivity coefficient;
the heat conduction box 530 is internally provided with a hollow heat conduction cavity 531, the heat conduction oil 540 is filled in the heat conduction cavity 531, and the heat conduction oil of the embodiment can be transformer oil which is mainly used for conducting heat; a heat transfer rod 521 is arranged in the heat transfer cavity 531, the heat transfer rod 521 is in heat conduction connection with a memory spring 520, the memory spring 520 is arranged in the induction cavity 111, the induction cavity 111 is arranged in the induction tube 110, the induction tube 110 is fixed in the first mounting groove 101, a push plate 510 is clamped and slidably arranged in the induction cavity 111, the push plate 510 is in contact with one end of the memory spring 520, the other end of the memory spring 520 is in heat conduction connection with the heat transfer rod 521, and the other end of the memory spring 520 is assembled and fixed with the inner wall of the induction cavity 111;
the memory spring is stretched at 60-80 ℃ and shortened below 50 ℃, a power switch 240 is fixed at one end of the sensing cavity 111 far away from the memory spring 520, the triggering end of the power switch 240 is opposite to the push plate 510, and the power switch 240 of the push plate 510 can trigger the power switch 240;
the power switch 240 is in a closed state in an initial state and is in an open state after being triggered, the power switch 240 of the present embodiment selects a contact type switch, and the power switch 240 is connected in series between the electromagnet and the movable contact of the contactor.
Can produce a large amount of heats after the electro-magnet uses for a long time, these heat heating conduction oil to with heat transmission to memory spring, memory spring is heated the extension, thereby drive push pedal trigger switch, switch is broken off the power supply to the electro-magnet after being triggered, thereby makes the electro-magnet stop work, prevents to be burnt out, MCU can start the buzz ware of installing in first mounting groove 101 this moment, thereby reminds the operator. Of course, the power switch needs to have a signal output function, and when the power switch is touched, the MCU obtains signal input so as to control the buzzer to start sounding.
In this embodiment, all the electric devices are powered by batteries.
The details of the present invention are well known to those skilled in the art.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A door lock capable of detecting insertion of a key, which is installed at a door for controlling opening and closing of the door, characterized in that: the door is internally provided with a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove respectively, a PCB (printed circuit board), a battery and an electromagnet are mounted in the first mounting groove respectively, the PCB is provided with an MCU (microprogrammed control unit) and a contactor, a control end of the contactor is in communication connection with a signal end of the MCU, a static contact of the contactor is in conductive connection with an electrode of the battery, and a movable contact is in conductive connection with a power connection end of the electromagnet;
the electromagnet is provided with a telescopic shaft, and one end of the telescopic shaft passes through the heat conduction box and the partition plate and then is clamped and assembled with the notch on the lock cylinder; the partition plate is fixed in the first mounting groove; a hollow lock hole is formed in the lock cylinder, the lock hole is communicated with one end of a second mounting groove, and the other end of the second mounting groove penetrates through the door;
the laser sensor is characterized in that a transmitter and a receiver are respectively installed on two sides of the second installation groove, the transmitter transmits laser to the receiver, the receiver generates potential change after receiving the laser, signal ends of the receiver and the transmitter are in communication connection with a signal end of the MCU, and the transmitter and the receiver jointly form a laser sensor.
2. The door lock of claim 1, wherein: the telescopic shaft is further fixed with a limiting ring, a first pressure spring is sleeved on the part, located between the limiting ring and the partition plate, of the telescopic shaft, and the first pressure spring is used for providing elasticity for the groove of the telescopic shaft.
3. The door lock of claim 1, wherein: a detection shaft is fixed at one end of the lock cylinder, which is far away from the second mounting groove, one end of the detection shaft is arranged in the third mounting groove and is fixedly assembled with the cam, and the cam is respectively provided with a long shaft end and a short shaft end; the sliding block is installed at the bottom of the third installation groove in a clamping and sliding mode, the sliding block is fixedly assembled with one end of the sliding rod, the other end of the sliding rod penetrates through the second pressure spring and then enters the fourth installation groove to be fixedly assembled with the trigger block, the trigger block is right opposite to the trigger end of the microswitch, and the signal end of the microswitch is in communication connection with the signal end of the MCU.
4. The door lock of claim 3, wherein: when the long shaft end is tightly attached to the sliding block, the long shaft end drives the sliding block to overcome the elastic force of the second pressure spring to move downwards, the trigger block triggers the microswitch, and at the moment, the MCU judges that the unlocking state is not achieved.
5. The door lock of claim 1, wherein: the protection device comprises a heat conduction box, the telescopic shaft is tightly clamped and attached to the heat conduction box and can be axially assembled in a sliding mode, and the heat conduction box is made of a material with a high heat conductivity coefficient;
the heat conduction box is internally provided with a hollow heat transfer cavity, and heat conduction oil is filled in the heat transfer cavity; the heat transfer cavity is internally provided with a heat transfer rod, the heat transfer rod is in heat conduction connection with a memory spring, the memory spring is arranged in an induction cavity, the induction cavity is arranged in the induction tube, the induction tube is fixed in a first mounting groove, the inside of the induction cavity is clamped and slidably provided with a push plate, the push plate is contacted with one end of the memory spring, the other end of the memory spring is in heat conduction connection with the heat transfer rod, and the end is assembled and fixed with the inner wall of the induction cavity;
a power switch is fixed on one end of the induction cavity, which is far away from the memory spring, and the trigger end of the power switch is opposite to the push plate; the power switch is in a closed state in an initial state and is in an open state after being triggered, and the power switch is connected between the electromagnet and the movable contact of the contactor in series.
6. The door lock of claim 5, wherein: the memory spring is stretched at 60-80 ℃ and shortened below 50 ℃.
7. An intelligent key cabinet is characterized in that: use of a door lock according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123932.6U CN211287064U (en) | 2019-12-02 | 2019-12-02 | Can detect lock that key inserted and intelligent key cabinet thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123932.6U CN211287064U (en) | 2019-12-02 | 2019-12-02 | Can detect lock that key inserted and intelligent key cabinet thereof |
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| Publication Number | Publication Date |
|---|---|
| CN211287064U true CN211287064U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922123932.6U Active CN211287064U (en) | 2019-12-02 | 2019-12-02 | Can detect lock that key inserted and intelligent key cabinet thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554705A (en) * | 2021-01-08 | 2021-03-26 | 南京迈思诺商贸有限公司 | Jewelry containing box with alarming and anti-theft functions |
-
2019
- 2019-12-02 CN CN201922123932.6U patent/CN211287064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554705A (en) * | 2021-01-08 | 2021-03-26 | 南京迈思诺商贸有限公司 | Jewelry containing box with alarming and anti-theft functions |
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