Double-prying-resistant lock front panel

Abstract

The invention discloses a double-prying-resistant lock front panel which comprises a shell and a cover plate which are detachably connected through a plurality of screws, a handle is rotationally connected to the shell, a circuit board is arranged in the shell, a touch key connected with the circuit board is arranged on the front face of the shell, and the circuit board is connected with a lock rear panel through a flat cable. The circuit board is powered by a power source in a rear panel of the lock, an anti-prying switch and a microswitch which are connected with the circuit board are arranged in the shell, the anti-prying switch penetrates out of the cover plate, a stroke button of the anti-prying switch is limited to be in a normally-open position by the door after the front panel is installed on the door, the handle is detachably provided with a rotating piece located in the shell, a notch is formed in the rotating piece, and the handle is connected with the microswitch through the notch. A roller located in the notch is arranged on an action reed of the microswitch, the microswitch is in a normally-open state when the roller is located in the notch, the microswitch is in a normally-closed state when the roller is located at other positions of the rotating piece, and a first loudspeaker connected with the circuit board is further arranged in the shell. The front panel of the lock has a double-prying-resistant function.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and particularly to a front panel of a double anti-prying lock. Background Art

[0002] An intelligent lock panel controls the operation of a circuit or a chip through password or fingerprint input, thereby controlling the closing of a mechanical switch to complete the tasks of unlocking and locking. For example, a Chinese utility model patent with the application number CN202421439977.9 discloses a front panel assembly and an intelligent door lock, including an installation groove provided on an external intelligent lock, including a skeleton fixedly connected in the installation groove; a cover plate movably installed on the skeleton through a rotating connector; a locking member for detachably connecting the cover plate and the skeleton. The locking member includes a bayonet provided at one end of the surface of the skeleton; a clamping block provided at one end of the cover plate, which can be clamped with the bayonet. The rotating connector includes a through groove provided on the cover plate; a connecting column fixedly connected to the inner surface of the cover plate and slidable in the through groove; an anti-disengagement member for preventing the connecting column from disengaging from the through groove. This lock front panel assembly does not have an anti-prying function and cannot give a warning when the lock front panel assembly is pried, resulting in poor safety. Summary of the Invention

[0003] In view of the deficiencies of the background art, the technical problem to be solved by the present invention is to provide a front panel of a lock with a double anti-prying function.

[0004] To this end, the present invention is implemented as follows: A front panel of a double anti-prying lock includes a housing and a cover plate detachably connected by a plurality of screws. A handle is rotatably connected to the housing. A circuit board is provided inside the housing, and touch buttons connected to the circuit board are provided on the front of the housing. The circuit board is connected to the rear panel of the lock through a flexible cable and is powered by a power supply inside the rear panel of the lock. It is characterized in that: an anti-prying switch and a micro switch connected to the circuit board are provided inside the housing. The anti-prying switch passes through the cover plate. After the front panel is installed on the door, the travel button of the anti-prying switch is limited by the door and is in a normally open position. A rotating piece located inside the housing is detachably provided on the handle. A notch is provided on the rotating piece. A roller is provided on the actuating reed of the micro switch and is located inside the notch. When the roller is located inside the notch, the micro switch is in a normally open state. When the roller is located at other positions of the rotating piece, the micro switch is in a normally closed state. A first speaker connected to the circuit board is also provided inside the housing.

[0005] Further, a mechanical key lock hole is provided at the lower part of the front of the housing. The mechanical key lock hole is aligned with the lock core of the lock. The handle is detachably connected by a plurality of first bolts with a hidden plate that can cover the mechanical key lock hole. A locking structure for restricting the rotation of the hidden plate is provided on the housing and the hidden plate.

[0006] Further, the locking structure includes a pin shaft with a head and an unlocking member that are in mutual abutment. A first through hole for the pin shaft with a head to be movably inserted is provided in the housing. An opening groove for the head of the pin shaft with a head to move is provided at the front of the first through hole. The hidden plate is provided with a second through hole that aligns with the first through hole and through which the unlocking member is movably inserted. An annular step is provided on the inner wall of the second through hole. An annular clamping block that can abut against the annular step is provided on the inner side of the unlocking member. The head of the pin shaft with a head can enter the second through hole, and a spring for urging the pin shaft with a head to move outward is provided between the head of the pin shaft with a head and the bottom of the opening groove.

[0007] Further, a rotating part inserted into the housing is provided at the lower part of the hidden plate. The rotating plate is detachably connected to the rotating part by a plurality of second bolts. An arc-shaped opening is provided on the outer ring of the other side of the rotating plate relative to the notch. An arc-shaped limiting block extending into the arc-shaped opening is provided in the housing.

[0008] Further, a wear-resistant silica gel sheet is provided between the housing and the rotating plate. The wear-resistant silica gel sheet is sleeved on the outer ring of the rotating part. After the second bolts are tightened, the rotating plate and the housing squeeze the wear-resistant silica gel sheet, and there is a gap between the rotating plate and the rotating part.

[0009] Further, third through holes that communicate with each other are provided on the hidden plate, the rotating part and the rotating plate. A channel communicating with the third through hole is provided on the handle. A second speaker and a fingerprint head passing through the back of the handle are provided in the handle. The fingerprint head and the second speaker are respectively connected to the circuit board by wires. The wires pass through the channel and the third through hole to be connected to the circuit board.

[0010] Further, an emergency charging interface connected to the circuit board is further provided at the lower part of the front of the housing. The hidden plate can shield the emergency charging interface. An electronic cat's eye connected to the circuit board and a doorbell button passing through the housing are provided in the housing, and a round hole aligning with the electronic cat's eye is provided on the housing.

[0011] Further, a plurality of fourth through holes that communicate with each other and align with the first speaker are provided on the housing and the hidden plate. A plurality of fifth through holes aligning with the second speaker are provided on the handle.

[0012] Further, the emergency charging interface is a type-c interface or a micro-usb interface or a lightning interface.

[0013] After adopting the above technical solution, when the current panel is installed on the door, the travel button of the anti-pry switch is in the normally open position limited by the door. When the current panel becomes loose or is pried by criminals, the button of the anti-pry switch is released and in the normally closed position. The circuit board receives the signal and makes the first speaker emit an alarm. It can not only give an alarm to the users indoors, but also have a warning effect on criminals, with higher safety. In addition, when criminals pry the lock core and turn the handle to unlock, the rotating piece rotates with the handle. At this time, the roller of the micro switch breaks away from the notch and enters other positions of the rotating piece, making the micro switch in the normally closed state. The circuit board receives the signal and makes the first speaker emit an alarm, which can also give an alarm to the users indoors and have a warning effect on criminals, further enhancing the safety of the front panel of the lock and making the lock panel have a double anti-pry function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention has the following drawings: Figure 1 is a schematic three-dimensional structure diagram of the present invention; Figure 2 is a schematic three-dimensional structure diagram of another viewing direction of the present invention; Figure 3 is a schematic three-dimensional structure diagram of the present invention with the cover removed; Figure 4 is a schematic partial sectional structure diagram of the present invention.

[0015] Reference numerals: 1, housing; 2, cover; 3, handle; 4, circuit board; 5, touch button; 6, anti-pry switch; 7, micro switch; 8, travel button; 9, rotating piece; 10, notch; 11, actuating reed; 12, roller; 13, first speaker; 14, mechanical key lock hole; 15, hidden plate; 16, head pin shaft; 17, unlocking member; 18, first through hole; 19, head; 20, opening groove; 21, second through hole; 22, annular step; 23, annular block; 24, spring; 25, rotating part; 26, circular arc opening; 27, circular arc limiting block; 28, wear-resistant silica gel sheet; 29, gap; 30, third through hole; 31, channel; 32, fingerprint head; 33, second speaker; 34, emergency charging interface; 36, cat's eye; 37, doorbell button; 38, round hole; 39, fourth through hole; 40, fifth through hole; 41, second bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in combination with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0017] As shown in the above-mentioned attached drawings, a front panel of a double anti-pry lock provided by the present invention includes a housing 1 and a cover plate 2 detachably connected by a plurality of screws. A handle 3 is rotatably connected to the housing 1. A circuit board 4 is provided inside the housing 1, and a touch button 5 connected to the circuit board 4 is provided on the front surface of the housing 1. The circuit board 4 is connected to the rear panel of the lock by a flexible cable, and the circuit board 4 is powered by a power supply inside the rear panel of the lock. It is characterized in that: an anti-pry switch 6 and a micro switch 7 connected to the circuit board 4 are provided inside the housing 1. The anti-pry switch 6 penetrates through the cover plate 2. After the front panel is installed on the door, the travel button 8 of the anti-pry switch 6 is limited by the door and is in a normally open position. The handle 3 is detachably provided with a rotating piece 9 located inside the housing 1. A notch 10 is provided on the rotating piece 9. A roller 12 located inside the notch 10 is provided on the actuating reed 11 of the micro switch 7. When the roller 12 is located inside the notch 10, the micro switch 7 is in a normally open state. When the roller 12 is located at other positions of the rotating piece 9, the micro switch 7 is in a normally closed state. A first speaker 13 connected to the circuit board 4 is further provided inside the housing 1. A mechanical key lock hole 14 is provided at the lower part of the front surface of the housing 1. The mechanical key lock hole 14 is aligned with the lock core of the lock. The handle 3 is detachably connected by a plurality of first bolts with a hidden plate 15 that can shield the mechanical key lock hole 14. A locking structure for restricting the rotation of the hidden plate 15 is provided on the housing 1 and the hidden plate 15. The locking structure includes a headed pin shaft 16 and an unlocking member 17 that are in mutual contact. A first through hole 18 for the headed pin shaft 16 to be movably inserted is provided inside the housing 1. The front part of the first through hole 18 has an opening groove 20 for the head 19 of the headed pin shaft 16 to move. The hidden plate 15 is provided with a second through hole 21 that is aligned with the first through hole 18 and through which the unlocking member 17 is movably inserted. An annular step 22 is provided on the inner wall of the second through hole 21. An annular block 23 that can abut against the annular step 22 is provided on the inner side of the unlocking member 17. The head 19 of the headed pin shaft 16 can enter the second through hole 21, and a spring 24 for urging the headed pin shaft 16 to move outward is provided between the head 19 of the headed pin shaft 16 and the bottom of the opening groove 20. A rotating part 25 inserted into the housing 1 is provided at the lower part of the hidden plate 15. The rotating piece 9 is detachably connected to the rotating part 25 by a plurality of second bolts 41. An arc-shaped opening 26 is provided on the outer ring of the other side of the rotating piece 9 relative to the notch 10. An arc-shaped limiting block 27 extending into the arc-shaped opening 26 is provided inside the housing 1. A wear-resistant silicone sheet 28 is provided between the housing 1 and the rotating piece 9. The wear-resistant silicone sheet 28 is sleeved on the outer ring of the rotating part 25. After the second bolts 41 are tightened, the rotating piece 9 and the housing 1 squeeze the wear-resistant silicone sheet 28, and there is a gap 29 between the rotating piece 9 and the rotating part 25. A third through hole 30 communicating with each other is provided on the hidden plate 15, the rotating part 25 and the rotating piece 9. A channel 31 communicating with the third through hole 30 is provided on the handle 3. A second speaker 33 and a fingerprint head 32 passing through the back of the handle 3 are provided inside the handle 3. The fingerprint head 32 and the second speaker 33 are respectively connected to the circuit board 4 by wires.The wire passes through the channel 31 and the third through-hole 30 to be connected to the circuit board 4. The lower part of the front surface of the housing 1 is also provided with an emergency charging interface 34 connected to the circuit board 4. The hidden plate 15 can shield the emergency charging interface 34. A cat's eye 36 connected to the circuit board 4 and a doorbell button 37 passing through the housing 1 are provided inside the housing 1. A round hole 38 aligned with the electronic cat's eye 36 is provided on the housing 1. A plurality of fourth through-holes 39 that are communicated and aligned with the first speaker 13 are provided on the housing 1 and the hidden plate 15. A plurality of fifth through-holes 40 aligned with the second speaker 33 are provided on the handle 3. The emergency charging interface 34 is a type-c interface or a micro-usb interface or a lightning interface.,

[0018] In this embodiment, after the front panel is installed on the door, the travel button 8 of the anti-pry switch 6 is in the normally open position by the door limit. When the front panel is loosened or pried by criminals, the button of the anti-pry switch 6 is released and is in the normally closed position. The circuit board 4 receives a signal to make the first speaker 13 sound an alarm, which can not only alarm the users in the room, but also warn the criminals, and has a higher safety. In addition, when the criminals pry the lock cylinder and unlock it by turning the handle 3, the rotating piece 9 rotates with the handle 3. At this time, the roller 12 of the micro switch 7 breaks away from the notch 10 and enters other positions of the rotating piece 9, so that the micro switch 7 is in the normally closed state. The circuit board 4 receives a signal to make the first speaker 13 sound an alarm, which can also The invention can give an alarm to indoor users and serve as a warning to criminals, further enhancing the security of the front panel of the lock, and making the lock panel have a double anti-pry function; in a normal state, the elastic force of the spring 24 pushes the head pin 16 and the unlocking piece 17 outward, so that a part of the head 19 of the head pin 16 is located in the opening groove 20 and the other part is located in the second through hole 21. At this time, the handle 3 and the hidden plate 15 cannot be rotated. The hidden plate 15 covers the mechanical key lock hole 14 and the emergency charging interface 34 for hiding, which is not easy to be found and illegally unlocked by criminals, thereby enhancing the security of the lock panel. When the lock fails or has no power, pressing the unlocking piece 17 drives the head pin 16 to move inward, so that the head pin 16 is separated from the second through hole 21. The lock is unlocked by the mechanical key hole 14, and the battery can be charged through the emergency charging interface 34, so that the front panel can quickly restore the electronic function. During this process, the micro switch 7 will be in a normally closed state, so that the first speaker 13 will sound an alarm. After the handle 3 and the hidden plate 15 are reset, the roller 12 is located in the notch 10 to release the alarm. The rotation angle of the handle 3 can be adjusted by adjusting the arc length of the arc notch 10 or the arc limit block 27. The invention can meet the personalized needs of users; the wear-resistant silicone sheet 28 is used to increase the resistance when the handle 3 and the hidden plate 15 rotate, and the locking force between the hidden plate 15 and the rotating sheet 9, and enhance the hand feel; the fingerprint head 32 is located on the back of the handle 3, and the fingerprint head 32 is hidden. When unlocking, the user holds the handle 3, and all the fingers except the thumb are on the back of the lower handle. The unlocking is convenient and quick, and there is no interference in the unlocking process. The second speaker 33 has the same function as the first speaker 13, and is used for issuing alarms and voice functions such as unlocking and talking. The fourth through hole 39 and the fifth through hole 40 make it easier for the sound emitted by the first speaker 13 and the second speaker 33 to spread outside the shell 1 and the handle 3, making the sound louder.

Claims

1. A front panel of a double anti-prying lock, comprising a housing and a cover plate detachably connected by a plurality of screws. A handle is rotatably connected to the housing. A circuit board is provided inside the housing, and a touch button connected to the circuit board is provided on the front surface of the housing. The circuit board is connected to the rear panel of the lock through a cable, and the circuit board is powered by a power supply inside the rear panel of the lock. It is characterized in that: The housing is provided with a pry-proof switch and a microswitch connected to the circuit board. The pry-proof switch penetrates through the cover plate. After the front panel is installed on the door, the travel button of the pry-proof switch is limited by the door and is in the normally open position. The handle is detachably provided with a rotating piece located inside the housing. The rotating piece is provided with a notch. A roller is arranged on the actuating reed of the microswitch and is located in the notch. When the roller is located in the notch, the microswitch is in the normally open state. When the roller is located at other positions of the rotating piece, the microswitch is in the normally closed state. The housing is also provided with a first speaker connected to the circuit board.

2. The front panel of a double anti-pry lock according to claim 1, characterized in that: A mechanical keyhole is provided at the lower part of the front of the housing. The mechanical keyhole is aligned with the lock core of the lock. The handle is detachably connected with a hidden plate that can cover the mechanical keyhole through a plurality of first bolts. A locking structure for restricting the rotation of the hidden plate is provided on the housing and the hidden plate.

3. The front panel of a double anti-prying lock according to claim 2, characterized in that: The locking structure includes a headed pin shaft and an unlocking member that are in mutual abutment. A first through hole for the headed pin shaft to be movably inserted is provided in the housing. An opening groove for the head of the headed pin shaft to move is provided at the front part of the first through hole. The hidden plate is provided with a second through hole that is aligned with the first through hole and through which the unlocking member can movably pass. An annular step is provided on the inner wall of the second through hole. An annular clamping block that can abut against the annular step is provided on the inner side of the unlocking member. The head of the headed pin shaft can enter the second through hole, and a spring for urging the headed pin shaft to move outwards is provided between the head of the headed pin shaft and the bottom of the opening groove.

4. The front panel of a double anti-prying lock according to claim 3, characterized in that: The lower part of the hidden plate is provided with a rotating part inserted into the housing. The rotating piece is detachably connected with the rotating part through a plurality of second bolts. An arc-shaped opening is provided on the outer ring of the other side of the rotating piece relative to the notch. An arc-shaped limiting block extending into the arc-shaped opening is provided in the housing.

5. The front panel of a double anti-pry lock according to claim 4, characterized in that: A wear-resistant silica gel sheet is provided between the housing and the rotating piece. The wear-resistant silica gel sheet is sleeved on the outer ring of the rotating part. After the second bolts are tightened, the rotating piece and the housing squeeze the wear-resistant silica gel sheet, and there is a gap between the rotating piece and the rotating part.

6. A front panel of a double anti-prying lock according to claim 4 or 5, characterized in that: The hidden plate, the rotating part and the rotating piece are provided with a communicating third through hole. The handle is provided with a channel communicating with the third through hole. A second speaker and a fingerprint head passing through the back of the handle are provided in the handle. The fingerprint head and the second speaker are respectively connected to the circuit board through wires. The wires pass through the channel and the third through hole and are connected to the circuit board.

7. A front panel of a double anti-prying lock according to claim 6, characterized in that: An emergency charging interface connected to the circuit board is also provided at the lower part of the front of the housing. The hidden plate can cover the emergency charging interface. A cat's eye connected to the circuit board and a doorbell button passing through the housing are provided in the housing, and a round hole for aligning with the electronic cat's eye is provided on the housing.

8. The front panel of a double anti-prying lock according to claim 6, characterized in that: A plurality of fourth through holes that are communicated and aligned with the first speaker are provided on the housing and the hidden plate. A plurality of fifth through holes that are aligned with the second speaker are provided on the handle.

9. The front panel of a double anti-pry lock according to claim 7, characterized in that: The emergency charging interface is a type-c interface or a micro-usb interface or a lightning interface.

Images