An electronic fully automatic silent lock body

Abstract

This utility model discloses an electronic fully automatic silent lock body, relating to the field of lock technology. It includes a base shell, a cover plate adapted to the base shell, and a silent component, an electronic transmission component, and a mechanical unlocking component disposed within the base shell. The silent component includes a rotating tongue silent unit and a trigger tongue silent unit. The rotating tongue silent unit reduces noise during the moving and rotating processes of the rotating tongue, while the trigger tongue silent unit reduces noise during the moving and rotating processes of the trigger tongue. The electronic transmission component includes a motor, a cam gear, a drive gear, a square tongue lever, a main lock tongue, and a locking block. The motor drives the main lock tongue in and out through gear transmission, and the locking block controls the locking and unlocking of the rotating tongue. The mechanical unlocking component includes a lock cylinder, a lock head lever, and an unlocking plate. This utility model solves the problems of high noise and insufficient reliability of mechanical unlocking in existing electronic lock bodies.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to an electronic fully automatic silent lock body. Background Technology

[0002] In modern home and office settings, locks, as key components for security and convenient access, face increasingly diverse performance requirements. While current electronic locks on the market offer automated locking and unlocking, they generally suffer from noise issues during operation. In traditional electronic locks, the bolts (such as the flip bolt, trigger bolt, and main bolt) often directly impact the lock body panel or bottom shell due to spring force during entry, exit, or flipping movements, lacking effective buffering and noise reduction structures, resulting in significant impact noise. Simultaneously, the rigid contact between components in the internal transmission mechanism (such as the motor and gear assembly) generates additional noise during power transmission, especially at night or in quiet environments, which can disrupt the user's life and negatively impact the user experience.

[0003] For example, an electronic fully automatic lock body with publication number CN119981540A relates to the field of lock technology. The drive structure includes a geared motor, a motor gear, and a cam gear connected by transmission. The cam gear is fitted with a square tongue block and a square steel plate. The flip tongue structure includes a flip tongue with a bidirectional inclined surface and a forked slide groove. The trigger tongue structure includes a retractable trigger tongue and a micro switch that is triggered after retraction. The micro switches are all connected to the controller. The main lock tongue structure includes a retractable main lock tongue, with a square steel plate coaxially fitted with a cam gear. The main lock tongue, lock head plate, and unlocking plate are stacked. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electronic fully automatic silent lock body to solve the problems of high noise and insufficient reliability of mechanical unlocking in the existing electronic lock body.

[0005] To solve the above problems, the technical solution provided by this utility model is as follows:

[0006] An electronic fully automatic silent lock body includes a base shell, a cover plate adapted to the base shell, and a silent component, an electronic transmission component, and a mechanical unlocking component disposed within the base shell. The silent component includes a rotating tongue silent unit and a trigger tongue silent unit. The rotating tongue silent unit reduces noise during the moving and rotating processes of the rotating tongue, and the trigger tongue silent unit reduces noise during the moving and rotating processes of the trigger tongue. The electronic transmission component includes a motor, a cam gear, a drive gear, a square tongue lever, a main bolt, and a locking block. The motor drives the main bolt forward and backward via gear transmission and controls the locking and unlocking of the rotating tongue via the locking block. The mechanical unlocking component includes a lock cylinder, a lock head lever, and an unlocking plate. The lock cylinder drives the main bolt to unlock via the lock head lever and controls the movement of the locking block via the unlocking plate to achieve unlocking of the rotating tongue.

[0007] Its core function is to systematically solve the noise problem generated by the movement of the bolt through the silent component, realize the automatic opening and closing of the lock driven by the motor through the electronic transmission component, and provide an emergency physical unlocking channel through the mechanical unlocking component, thereby comprehensively improving the quiet performance and reliability of the lock body.

[0008] Optionally, the rotating tongue silent unit includes a rotating tongue, a spring, a damping gear, a rotating tongue pad, a rotating tongue clip, a rotating tongue damping plate, and a rotating tongue bracket; the rotating tongue bracket is fixed inside the bottom shell, the rotating tongue is movably inserted through the rotating tongue bracket, and the spring abuts against the rotating tongue bracket; the rotating tongue pad is fixed at one end of the rotating tongue near the panel, and the rotating tongue pad is made of plastic; the damping gear meshes with the damping rack section of the rotating tongue bracket; the rotating tongue clip is sleeved in the middle of the rotating tongue, and the rotating tongue damping plate is disposed on the inner wall of the bottom shell and located on the movement trajectory of the tail of the rotating tongue.

[0009] The design reduces the impact and noise generated during the extension and retraction of the flip-top latch in multiple dimensions and locations. The flip-top latch pad cushions the impact between the flip-top latch and the door frame strike plate; the spring provides the latch's reset force; the damping gear slows down the movement speed of the flip-top latch; the flip-top latch shock absorber cushions the impact of the latch's tail on the lock housing when fully retracted; and the flip-top latch clip provides stability and auxiliary cushioning during movement, preventing the latch from swaying and colliding.

[0010] Optionally, both the flip tongue clip and the flip tongue damping plate are made of rubber, and the inner wall of the flip tongue clip is provided with anti-slip texture.

[0011] The materials for the flip-up tongue clip and the shock absorber are further specified, and the flip-up tongue clip is given an anti-slip texture. The core function of the rubber material is to provide excellent elastic cushioning and shock absorption and noise reduction properties. The function of the anti-slip texture is to increase the friction between the flip-up tongue clip and the flip-up tongue, preventing relative sliding or rotation between the clip and the tongue body, ensuring the continuity of the cushioning and stabilization effect, and may also provide additional damping effect.

[0012] Optionally, the trigger tongue mute unit includes a trigger tongue, a trigger tongue support, a spring, a trigger tongue buffer pad, and a trigger tongue middle piece; the trigger tongue support is fixed inside the bottom shell, the trigger tongue is movably inserted through the trigger tongue support, the spring is sleeved on the limiting post of the trigger tongue support, and the two ends of the spring abut against the trigger tongue support and the tail of the trigger tongue respectively; the trigger tongue buffer pad is fixed at one end of the trigger tongue near the panel, and the trigger tongue buffer pad is made of plastic; the trigger tongue middle piece is sleeved in the middle of the trigger tongue and is located on the contact trajectory between the trigger tongue and the panel.

[0013] Its function is similar to that of the flip-top silent unit, designed to reduce noise during the movement of the trigger tongue. The trigger tongue buffer pad is used to cushion the impact between the trigger tongue and the door frame; the spring provides the trigger tongue with automatic reset force; the trigger tongue middle plate is used to cushion the contact and collision between the trigger tongue body and the lock body panel or guide hole.

[0014] Optionally, the trigger tongue's middle piece is made of silicone.

[0015] The function of silicone is to provide extremely soft and durable elastic cushioning. Compared to other rubbers, silicone typically has a lower modulus (softer), better weather resistance, and is less prone to permanent deformation, making it more effective at isolating vibrations and absorbing minor impacts, resulting in superior noise reduction.

[0016] Optionally, in the electronic transmission assembly, the output shaft of the motor is fixedly connected to a cam gear, the cam gear meshes with a drive gear, and the side of the drive gear away from the cam gear is connected to a square tongue block; the end of the square tongue block away from the drive gear is engaged with the main locking tongue, and the square tongue block can drive the main locking tongue to reciprocate along the length direction of the bottom shell by rotation.

[0017] The motor serves as the power source; the cam gear and drive gear form a reduction gear pair, which converts the high speed and low torque of the motor into low speed and high torque to meet the needs of driving the lock tongue; the function of the square tongue block is to convert the rotational motion of the gear into the linear motion required by the main lock tongue.

[0018] Optionally, the side of the gear-equipped part has a protrusion, the locking block is movably disposed in the bottom shell, and one end of the locking block is adapted to the protrusion of the gear-equipped part, while the other end of the locking block can be inserted into the groove of the flip tongue.

[0019] The protrusion on the side of the cam gear functions as a cam, converting the rotational motion of the gear into the linear motion required by the locking block. The locking block functions to be inserted into or disengaged from the groove of the flip tongue in a controlled manner, thereby achieving mechanical locking (preventing it from being flipped back by external force) and unlocking of the flip tongue.

[0020] Optionally, in the mechanical unlocking assembly, the output end of the lock cylinder is connected to one end of the lock head lever, the middle part of the lock head lever is engaged with the square tongue lever, and the other end of the lock head lever is hinged to one end of the unlocking plate; the other end of the unlocking plate abuts against the end of the locking block away from the flip tongue, and the unlocking plate can push the locking block to reciprocate along the width direction of the bottom shell by rotation.

[0021] In the event of electronic system failure, the lock body is fully unlocked through purely mechanical means. The lock cylinder receives the input torque from the key; the lock cylinder's rotational motion is transmitted by the lock cylinder's tumbler, which in turn drives the main bolt to retract and the unlocking plate to move; the unlocking plate's function is to transmit the lock cylinder's tumbler motion to the locking block, causing it to release the flip-top bolt.

[0022] Optionally, the inner wall of the bottom shell is also provided with a plurality of noise reduction and vibration damping pads, which are respectively disposed at the contact points between the motor and the bottom shell, the contact points between the drive gear and the bottom shell, and the contact points between the main locking tongue and the bottom shell.

[0023] Noise-reducing and vibration-damping pads were added at key vibration and noise sources inside the lock body. Their function is to isolate and absorb the vibrations generated by the internal transmission mechanism (such as motors and gears) and moving parts (such as the main bolt) during operation, preventing these vibrations from being directly transmitted to the base and amplified to generate resonance noise, thereby achieving overall noise reduction.

[0024] Optionally, the system also includes a circuit board and a detection switch. The circuit board is electrically connected to the motor and the detection switch, respectively. The detection switch is located on the movement trajectory of the main locking tongue. The circuit board can receive digital communication signals from the panel and control the start, stop, and direction of the motor according to the digital communication signals and the feedback signals from the detection switch.

[0025] The circuit board, acting as the control center, is responsible for receiving commands, processing signals, and controlling the motor. The detection switch is used to detect the real-time position of the main bolt (such as "locked" or "unlocked"), providing feedback signals to the control system. Its function is to achieve intelligent control, status monitoring, and operational protection of the lock body (such as preventing motor stall).

[0026] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0027] By incorporating dedicated silent flip-tongue and silent trigger-tongue units, along with noise-reducing and vibration-damping pads throughout the lock body, the lock effectively absorbs the impact energy and vibration generated during the movement of the bolt and the operation of the transmission components. This significantly reduces the noise generated during automatic locking, unlocking, and manual operation. Furthermore, the electronic transmission components and mechanical unlocking components are designed in a linked manner, ensuring that even in the event of electronic system failure, the main bolt and flip-tongue can still be synchronously and reliably unlocked mechanically. This greatly enhances the security and practicality of the lock, providing users with a quiet, convenient, and highly reliable user experience. Attached Figure Description

[0028] Figure 1 A side view of an electronic fully automatic silent lock body proposed for an embodiment of this utility model;

[0029] Figure 2 An internal side view of an electronic fully automatic silent lock body proposed for an embodiment of this utility model;

[0030] Figure 3 A partial internal structure of an electronic fully automatic silent lock body is proposed as an embodiment of this utility model. Figure 1 ;

[0031] Figure 4 A partial internal structure of an electronic fully automatic silent lock body is proposed as an embodiment of this utility model. Figure 2 ;

[0032] Figure 5 A partial internal structure of an electronic fully automatic silent lock body is proposed as an embodiment of this utility model. Figure 3 ;

[0033] 1. Panel; 2. Flip tongue; 3. Flip tongue clip; 4. Flip tongue damping plate; 5. Damping gear; 6. Flip tongue bracket; 7. First spring; 8. Flip tongue pad; 9. Bottom shell; 10. Trigger tongue; 11. Trigger tongue middle plate; 12. Trigger tongue buffer pad; 13. Trigger tongue bracket; 14. Second spring; 15. Motor; 16. With convex gear; 17. Drive gear; 18. Square tongue lever; 19. Main bolt; 20. Locking block; 21. Unlocking plate; 22. Lock head lever; 23. Circuit board; 24. Detection switch. Detailed Implementation

[0034] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0035] Example 1

[0036] Combined with appendix Figure 1-2An electronic fully automatic silent lock body includes a base shell 9, a cover plate adapted to the base shell 9, and a silent component, an electronic transmission component, and a mechanical unlocking component disposed within the base shell 9. The silent component includes a flip-tongue silent unit and a trigger tongue silent unit. The flip-tongue silent unit is used to reduce noise during the movement and flipping of the flip-tongue 2, and the trigger tongue silent unit is used to reduce noise during the movement and flipping of the trigger tongue 10. The electronic transmission component includes a motor 15, a cam gear 16, a drive gear 17, a square tongue lever 18, a main lock tongue 19, and a locking block 20. The motor 15 drives the main lock tongue 19 to move in and out through gear transmission, and controls the locking and unlocking of the flip-tongue 2 through the locking block 20. The mechanical unlocking component includes a lock cylinder, a lock head lever 22, and an unlocking plate 21. The lock cylinder drives the main lock tongue 19 to unlock through the lock head lever 22, and controls the movement of the locking block 20 through the unlocking plate 21 to achieve the unlocking of the flip-tongue 2.

[0037] The overall operation of the lock body is based on electronic control signals or mechanical key input. In electronic mode, motor 15 starts and transmits power to the square tongue lever 18 through a gear system (with cam gear 16 and drive gear 17). The square tongue lever 18 drives the main bolt 19 to extend (lock) or retract (unlock). At the same time, the protrusion on the cam gear 16 drives the locking block 20 to move, locking or releasing the flip-top tongue 2. The noise reduction components (flip-top tongue noise reduction unit and trigger tongue noise reduction unit) absorb collision energy and reduce noise during the movement of each bolt. In mechanical emergency mode, rotating the lock cylinder directly drives the square tongue lever 18 through the lock head lever 22 to retract the main bolt 19. At the same time, the lock head lever 22 drives the unlocking plate 21 to move, and the unlocking plate 21 pushes the locking block 20 to disengage from the flip-top tongue 2, achieving complete mechanical unlocking.

[0038] Combined with appendix Figure 3-4 The rotating tongue silent unit includes a rotating tongue 2, a first spring 7, a damping gear 5, a rotating tongue pad 8, a rotating tongue clip 3, a rotating tongue damping plate 4, and a rotating tongue bracket 6. The rotating tongue bracket 6 is fixed inside the bottom shell 9, and the rotating tongue 2 is movably inserted through the rotating tongue bracket 6. The spring is sleeved on the end of the rotating tongue 2 away from the panel 1, and the two ends of the first spring 7 respectively abut against the spring limiting post 602 of the rotating tongue bracket 6 and the fixing plate of the bottom shell 9. The rotating tongue pad 8 is fixed on the end of the rotating tongue 2 close to the panel 1. Furthermore, the flip tongue pad 8 is made of plastic; the damping gear 5 is rotatably connected to the bottom shell 9 and is set at the other end of the flip tongue bracket 6; the damping rack segment 601, the flip tongue bracket 6 is U-shaped, the damping rack segment 601 is located at the other end of the U-shape, the damping rack segment 601 meshes with the damping gear 5, and the damping gear 5 is buffered by the damping component 501; the flip tongue clamp 3 is sleeved in the middle of the flip tongue 2, and the flip tongue shock absorber 4 is set on the inner wall of the bottom shell 9 and is located on the movement trajectory of the tail of the flip tongue 2.

[0039] When the flip-tab 2 retracts under external force or pops out by spring force, its movement is resisted by the damping gear 5, slowing down its speed and preventing high-speed impact. At the tip of the tongue, the flip-tab pad 8 (made of plastic) contacts the door frame or lock body panel 1 before the metal tongue body, using the elastic deformation of the plastic to absorb part of the impact energy. At the end of the stroke at the tail of the tongue, the flip-tab shock absorber 4 (made of rubber) is compressed, absorbing the impact energy at the tail of the tongue through deformation. The flip-tab clip 3 may generate friction with the tongue body through its material properties (such as rubber) and internal anti-slip texture, playing a certain role in damping and stabilization, reducing vibration and noise. The flip-tab bracket 6 is fixed to the bottom shell 9 by screws, and the flip-tab 2 moves through the through hole of the flip-tab bracket 6, reciprocating along the axis of the through hole; the first spring 7 is sleeved on the end of the flip-tab 2 away from the panel 1, one end of the first spring 7 abuts against the inner wall of the flip-tab bracket 6, and the other end abuts against the tail boss of the flip-tab 2, providing power for the pop-out of the flip-tab 2. The flip tongue pad 8 is fixed to the end of the flip tongue 2 near the panel 1 by a snap fastener. It is made of ABS plastic. When the flip tongue 2 pops out, the flip tongue pad 8 contacts the panel 1 first, preventing the metal flip tongue 2 from directly hitting the panel 1 and reducing impact noise. The flip tongue clip 3 is made of nitrile rubber and is sleeved in the middle of the flip tongue 2. When the flip tongue 2 flips, the flip tongue clip 3 can prevent the flip tongue 2 from making rigid contact with the flip tongue support 6. The flip tongue shock absorber 4 is also made of nitrile rubber and is fixed to the inner wall of the bottom shell 9 by adhesive bonding. It is located on the movement trajectory of the tail of the flip tongue 2. When the flip tongue 2 flips to the limit position, the tail hits the flip tongue shock absorber 4 to achieve flexible buffering and reduce impact noise.

[0040] Both the flip tongue clip 3 and the flip tongue damping plate 4 are made of rubber, and the inner wall of the flip tongue clip 3 is provided with anti-slip texture.

[0041] Due to the high elastic modulus and internal friction characteristics of rubber materials, when the flip tongue clip 3 and the damping pad are squeezed or impacted, they can undergo significant deformation, converting the impact kinetic energy into deformation potential energy and partially dissipating it as heat energy, rather than directly transferring it as sound energy and vibration, thereby effectively reducing noise. The anti-slip texture increases the roughness of the contact surface, allowing the clip to more firmly "grip" the flip tongue 2, ensuring that the clip remains in its preset position and functions effectively during the repeated movement of the flip tongue 2, without failing due to slippage.

[0042] Combined with appendix Figure 5The trigger tongue mute unit includes a trigger tongue 10, a trigger tongue support 13, a second spring 14, a trigger tongue buffer pad 12, and a trigger tongue intermediate piece 11. The trigger tongue support 13 is fixed inside the bottom shell 9, the trigger tongue 10 is movably inserted through the trigger tongue support 13, the spring is sleeved on the limiting post of the trigger tongue support 13, and the two ends of the second spring 14 abut against the trigger tongue support 13 and the fixing plate, respectively. The trigger tongue buffer pad 12 is fixed to one end of the trigger tongue 10 near the panel 1, and the trigger tongue buffer pad 12 is made of plastic. The trigger tongue intermediate piece 11 is sleeved in the middle of the trigger tongue 10 and is located on the contact trajectory between the trigger tongue 10 and the panel 1.

[0043] When the trigger tongue 10 retracts under pressure from the door frame or springs out, its head contacts external objects through the trigger tongue buffer pad 12 (made of plastic), utilizing the elasticity of the plastic to reduce impact noise. During movement, the trigger tongue intermediate piece 11 acts as an intermediary between the tongue body and fixed components on the lock body (such as the mounting holes on panel 1), avoiding direct hard contact between metal and metal. The intermediate piece undergoes elastic deformation, filling gaps and absorbing the impact energy from tongue body wobbling or deflection, thereby reducing friction noise and impact noise. The trigger tongue silent unit (such as...) Figure 3 (As shown): Includes a trigger tongue 10, a trigger tongue support 13, a second spring 14, a trigger tongue buffer pad 12, and a trigger tongue intermediate piece 11. The trigger tongue support 13 is fixed to the bottom shell 9 by screws, and the trigger tongue 10 is movably inserted into the through hole of the trigger tongue support 13; the second spring 14 is sleeved on the limiting post of the trigger tongue support 13, providing power for the trigger tongue 10 to pop out. The trigger tongue buffer pad 12 is made of ABS plastic and is fixed to the end of the trigger tongue 10 near the panel 1 by a buckle, used to reduce the impact noise of the trigger tongue 10 hitting the panel 1 when it pops out; the trigger tongue intermediate piece 11 is made of silicone, 2mm thick, and is sleeved in the middle of the trigger tongue 10. When the trigger tongue 10 flips, the trigger tongue intermediate piece 11 can prevent the trigger tongue 10 from rigidly contacting the panel 1, reducing the impact noise of flipping.

[0044] The trigger tongue middle piece 11 is made of silicone.

[0045] When the silicone trigger tongue intermediate piece 11 is compressed by the trigger tongue 10, it undergoes significant soft deformation. This deformation effectively isolates the vibration generated by the movement of the trigger tongue 10 from being transmitted to the lock body panel 1, while absorbing the energy generated by possible slight collisions between the tongue and the hole wall of the panel 1. Its soft properties ensure that even if there are assembly gaps, it can fill them well and act as a buffer.

[0046] In the electronic transmission assembly, the output shaft of the motor 15 is fixedly connected to the cam gear 16, the cam gear 16 meshes with the drive gear 17, and the side of the drive gear 17 away from the cam gear 16 is connected to the square tongue block 18 for transmission; the end of the square tongue block 18 away from the drive gear 17 is engaged with the main locking tongue 19, and the square tongue block 18 can drive the main locking tongue 19 to reciprocate along the length direction of the bottom shell 9 by rotation.

[0047] After receiving a control signal, motor 15 rotates, driving the cam gear 16 to rotate. The cam gear 16 meshes with the drive gear 17, achieving first-stage reduction and reversal. When the drive gear 17 rotates, it drives the square tongue block 18, which is connected to it via an eccentric shaft or cam structure, to swing. The square tongue block 18 engages with the main locking tongue 19 (usually through a groove on the main locking tongue 19). The swinging motion of the square tongue block 18 is converted into a pushing and pulling action on the main locking tongue 19, thereby driving the main locking tongue 19 to extend (lock) and retract (unlock) in a straight line along its guide groove.

[0048] The side of the gear 16 has a protrusion, and the locking block 20 is movably disposed in the bottom shell 9. One end of the locking block 20 is adapted to the protrusion of the gear 16, and the other end of the locking block 20 can be inserted into the groove of the flip tongue 2.

[0049] During rotation, the protrusion on the side of the cam gear 16 periodically contacts and pushes one end of the locking block 20, causing the locking block 20 to overcome its own resistance (such as spring force) and move towards the flip tongue 2 until its other end is inserted into the groove of the flip tongue 2. At this time, the flip tongue 2 is fixed and cannot move (locked state). When the protrusion passes its highest point, the pushing force on the locking block 20 disappears, and the locking block 20 retracts under the action of the reset device (not shown in the figure, possibly a spring), disengaging from the groove of the flip tongue 2. The flip tongue 2 is then released and can move freely (unlocked state). This process is synchronously driven by the same motor 15 as the movement of the main locking tongue 19. Both the convex gear 16 and the drive gear 17 are made of POM engineering plastic, and the tooth surfaces are coated with a PTFE wear-resistant coating with a thickness of 5μm, which can reduce the friction coefficient during gear transmission, reduce wear and transmission noise; the inner wall of the flipping tongue clip 3 is provided with a diamond-shaped anti-slip texture, which can enhance the interference fit with the flipping tongue 2, avoid relative sliding during flipping, and ensure the stability of the silent effect.

[0050] In the mechanical unlocking assembly, the output end of the lock cylinder is connected to one end of the lock head lever 22, the middle part of the lock head lever 22 is engaged with the square tongue lever 18, and the other end of the lock head lever 22 is hinged to one end of the unlocking plate 21; the other end of the unlocking plate 21 abuts against the end of the locking block 20 away from the flip tongue 2, and the unlocking plate 21 can push the locking block 20 to reciprocate along the width direction of the bottom shell 9 by rotation.

[0051] When the lock cylinder is turned with the key, the lock cylinder drives the lock head lever 22 to rotate. The middle part of the lock head lever 22 interferes with (clicks into) the square latch lever 18, directly pushing the square latch lever 18 to move, thereby forcibly driving the main latch 19 to retract, achieving mechanical unlocking of the main latch 19. At the same time, the other end of the lock head lever 22 pulls or pushes the unlocking plate 21, causing the unlocking plate 21 to rotate around the hinge point. The other end of the unlocking plate 21 pushes the locking block 20 to move, causing it to overcome resistance and exit from the groove of the flip-tab 2, thereby releasing the flip-tab 2. Thus, the locking state of the main latch 19 and the flip-tab 2 is simultaneously released mechanically.

[0052] The inner wall of the bottom shell 9 is also provided with multiple noise reduction and vibration damping pads, which are respectively set at the contact points between the motor 15 and the bottom shell 9, the contact points between the drive gear 17 and the bottom shell 9, and the contact points between the main locking tongue 19 and the bottom shell 9.

[0053] Noise-reducing and vibration-damping pads (usually made of elastic materials such as rubber and silicone) are installed between the contact points of the motor 15 and the lock housing, the gear shaft and the lock housing, and the guide of the main bolt 19 and the lock housing. Vibrations generated by these components must pass through the damping pads before being transmitted to the lock housing. The damping pads absorb and dissipate most of the vibration energy through their elastic deformation, greatly reducing the amplitude of vibration transmitted to the lock housing, thereby effectively reducing structural noise caused by vibration.

[0054] It also includes a circuit board 23 and a detection switch 24. The circuit board 23 is electrically connected to the motor 15 and the detection switch 24 respectively. The detection switch 24 is set on the movement trajectory of the main locking tongue 19. The circuit board 23 can receive digital communication signals from the end of the panel 1 and control the start, stop and direction of the motor 15 according to the digital communication signals and the feedback signals from the detection switch 24.

[0055] Circuit board 23 receives digital communication signals (such as unlocking commands) transmitted from the front panel 1 (e.g., keypad, fingerprint sensor, card reader) via a line. Circuit board 23 makes a comprehensive judgment based on the command and the signal feedback from detection switch 24 (e.g., whether the main bolt 19 is in position). If an unlocking command is received and the main bolt 19 is detected to be extended, the motor 15 is controlled to rotate in the unlocking direction until the detection switch 24 sends a signal that the main bolt 19 has fully retracted, at which point the motor 15 stops. The locking process is the reverse. This closed-loop control ensures the accuracy of the action execution and allows for precise start, stop, and direction control of the motor 15 based on status feedback, avoiding abnormalities.

[0056] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An electronic full automatic silent lock body, characterized in that, The device includes a bottom shell, a cover plate adapted to the bottom shell, and a noise reduction assembly, an electronic transmission assembly, and a mechanical unlocking assembly disposed within the bottom shell. The noise reduction assembly includes a rotating tongue noise reduction unit and a trigger tongue noise reduction unit. The rotating tongue noise reduction unit is used to reduce noise during the moving and rotating processes of the rotating tongue, and the trigger tongue noise reduction unit is used to reduce noise during the moving and rotating processes of the trigger tongue. The electronic transmission assembly includes a motor, a cam gear, a drive gear, a square tongue lever, a main bolt, and a locking block. The motor drives the main bolt to move in and out through gear transmission, and controls the locking and unlocking of the rotating tongue through the locking block. The mechanical unlocking assembly includes a lock cylinder, a lock head lever, and an unlocking plate. The lock cylinder drives the main bolt to unlock through the lock head lever, and controls the movement of the locking block through the unlocking plate to achieve unlocking of the rotating tongue.

2. The electronic fully automatic silent lock body according to claim 1, characterized in that, The rotating tongue silencing unit includes a rotating tongue, a spring, a damping gear, a rotating tongue pad, a rotating tongue clip, a rotating tongue damping plate, and a rotating tongue support. The rotating tongue support is fixed inside the bottom shell, the rotating tongue is movably inserted through the rotating tongue support, and the spring abuts against the rotating tongue support. The rotating tongue pad is fixed at one end of the rotating tongue near the panel, and the rotating tongue pad is made of plastic. The damping gear meshes with the damping rack section of the rotating tongue support. The rotating tongue clip is sleeved in the middle of the rotating tongue, and the rotating tongue damping plate is disposed on the inner wall of the bottom shell and located on the movement trajectory of the tail of the rotating tongue.

3. The electronic fully automatic silent lock body according to claim 2, characterized in that, Both the flip tongue clip and the flip tongue shock absorber are made of rubber, and the inner wall of the flip tongue clip has anti-slip texture.

4. The electronic fully automatic silent lock body according to claim 1, characterized in that, The trigger tongue mute unit includes a trigger tongue, a trigger tongue support, a spring, a trigger tongue buffer pad, and a trigger tongue middle plate. The trigger tongue support is fixed inside the bottom shell, the trigger tongue is movably inserted through the trigger tongue support, the spring is sleeved on the limiting post of the trigger tongue support, and the two ends of the spring abut against the trigger tongue support and the fixing plate, respectively. The trigger tongue buffer pad is fixed at the end of the trigger tongue near the panel, and the trigger tongue buffer pad is made of plastic. The trigger tongue middle plate is sleeved in the middle of the trigger tongue and is located on the contact trajectory between the trigger tongue and the panel.

5. The electronic fully automatic silent lock body according to claim 4, characterized in that, The trigger tongue's middle piece is made of silicone.

6. The electronic fully automatic silent lock body according to claim 1, characterized in that, In the electronic transmission assembly, the output shaft of the motor is fixedly connected to the cam gear, the cam gear meshes with the drive gear, and the side of the drive gear away from the cam gear is connected to the square tongue block; the end of the square tongue block away from the drive gear is engaged with the main locking tongue, and the square tongue block can drive the main locking tongue to reciprocate along the length direction of the bottom shell by rotation.

7. The electronic fully automatic silent lock body according to claim 6, characterized in that, The side of the gear with a convex gear has a protrusion. The locking block is movably disposed in the bottom shell, and one end of the locking block is adapted to the protrusion with the gear, while the other end of the locking block can be inserted into the groove of the flip tongue.

8. The electronic fully automatic silent lock body according to claim 1, characterized in that, In the mechanical unlocking assembly, the output end of the lock cylinder is connected to one end of the lock head lever, the middle part of the lock head lever is engaged with the square tongue lever, and the other end of the lock head lever is hinged to one end of the unlocking plate; the other end of the unlocking plate abuts against the end of the locking block away from the flip tongue, and the unlocking plate can push the locking block to reciprocate along the width direction of the bottom shell by rotation.

9. The electronic fully automatic silent lock body according to claim 1, characterized in that, The inner wall of the bottom shell is also provided with multiple noise reduction and vibration damping pads, which are respectively located at the contact points between the motor and the bottom shell, the contact points between the drive gear and the bottom shell, and the contact points between the main locking tongue and the bottom shell.

10. The electronic fully automatic silent lock body according to claim 1, characterized in that, It also includes a circuit board and a detection switch. The circuit board is electrically connected to the motor and the detection switch respectively. The detection switch is set on the movement trajectory of the main locking tongue. The circuit board can receive digital communication signals from the panel and control the start, stop and direction of the motor according to the digital communication signals and the feedback signals from the detection switch.

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