gun lock

Abstract

The application discloses a gun lock, and aims at improving the defects of the traditional gun lock, such as insufficient bearing capacity, easy loosening and unlocking, weak anti-prying performance, and low structural redundancy integration when the traditional gun lock is adapted to a heavy machine gun. The gun lock comprises a lock shell, a lock core, a lock slot and a lock catch, the lock shell is internally provided with a driving motor, a clutch assembly, a main gear and a transmission part, the transmission part is coaxially arranged with the lock catch and is matched with the lock catch through a transmission groove and a transmission block, a limiting part and a return spring are movably arranged in the lock shell to form an anti-misoperation limiting structure in a locked state, and a lock core plate linked with the lock core is arranged to form a mechanical emergency unlocking path. The gun lock has the advantages of compact structure, high integration, electric and mechanical double unlocking modes, time sequence limiting design, excellent anti-vibration misoperation and anti-violent prying performance, stable and reliable locking, and can meet the standardized control requirements of the heavy machine gun.

Description

Technical Field

[0001] This invention relates to a gun lock. Background Technology

[0002] Gun locks are core security devices for firearms storage and control, primarily used to restrict unauthorized access to firearms and prevent incidents such as loss or misuse. They are widely used in standardized firearms management scenarios by the military and police. Currently, traditional gun locks on the market have relatively simple structural designs, mostly adapted to conventional light firearms, and have many technical shortcomings, making them unsuitable for the locking and control requirements of heavy machine guns. Traditional gun locks have limited load-bearing capacity and poor locking stability. Given the heavy weight and strong vibrations of heavy machine guns, they are prone to loosening, displacement, or even disengagement, resulting in insufficient locking reliability. Furthermore, most traditional gun locks are designed for adaptability, resulting in redundant structures, large sizes, low integration, and large installation space requirements, hindering compact firearm storage and standardized deployment. In addition, traditional gun locks have simple locking and limiting structures, weak protection against accidental opening and forced entry, posing safety hazards during use and compromising overall safety and reliability. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a gun lock with a simple and compact structure, reasonable layout, stable locking, convenient operation, and good reliability.

[0004] To achieve the above objectives, the present invention provides a gun lock, comprising a lock housing, a lock cylinder disposed on the lock housing, a lock groove disposed on the lock housing for abutting against the body of the gun to be locked, a latch disposed on the lock housing corresponding to the lock groove, a main gear, a transmission component, and a drive motor disposed within the lock housing, the drive motor being driven to the main gear via a clutch assembly, the main gear being driven to the transmission component, the latch comprising a lock arm exposed in the lock groove and a connecting arm disposed within the lock housing, the connecting arm being rotatably disposed within the lock housing, the transmission component being coaxially disposed with the connecting arm, the transmission component being provided with a transmission groove, a transmission block extending from the connecting arm into the transmission groove, the sidewall of the transmission groove abutting against the transmission block to drive the transmission component to rotate and lock or unlock the latch, and a limit switch being movably disposed within the lock housing. The locking mechanism includes a stop block for restricting the movement of the latch and a stop block for being moved away from the latch's movement path by the action of a transmission component. The stop block is positioned on the latch's movement trajectory, and the stop block is positioned on the transmission component's movement trajectory. A rotational allowance is provided between the transmission groove and the transmission block for the transmission component to rotate and abut against the stop block. A reset spring is provided between the lock housing and the locking mechanism for resetting the locking mechanism so that the stop block is blocked on the latch's movement trajectory. A lock cylinder plate is slidably disposed in the lock housing and is connected to the lock cylinder. A lock cylinder groove and a mating block are provided between the lock cylinder plate and the transmission component for driving the transmission component to rotate and abut against the stop block. The lock cylinder groove and the mating block are engaged. A lock cylinder reset component is provided on the lock housing at a position corresponding to the lock cylinder plate for resetting the lock cylinder plate.

[0005] The advantages of this design are as follows: The drive motor transmits power to the transmission components via the clutch assembly and main gear. The transmission components and the latch are coaxially arranged and cooperate through transmission grooves and blocks. This ensures stable torque transmission while significantly reducing the internal layout space of the lock body, making the overall structure more compact and suitable for installation in confined spaces around heavy machine guns. The rotational allowance between the transmission groove and the transmission block allows the transmission components to first engage the stop block of the limiting component through circumferential rotation when performing the unlocking action. This pushes the stop block completely out of the latch's movement trajectory before synchronously rotating the latch to unlock. This creates a fixed action sequence of first releasing the limit and then unlocking, avoiding interference and jamming of moving parts and ensuring that the stop block always blocks the latch's movement path when locked, resisting the risk of accidental unlocking caused by gun vibration or external prying. The lock cylinder directly drives the transmission components through the lock cylinder plate. In extreme scenarios such as power failure or motor malfunction, emergency unlocking can be performed using a mechanical key, improving the product's environmental tolerance. The return spring and lock cylinder reset component can automatically reset each functional component after unlocking, ensuring the repeatability of the locking action. The overall transmission chain is clear, the functions are highly integrated, and it has good reliability.

[0006] As a further feature of the present invention, a limiting groove is provided in the lock housing, one end of the limiting member is oscillatingly connected in the limiting groove, the return spring abuts between the limiting member and the bottom surface of the limiting groove, the stop block includes a vertical surface for abutting the latch to restrict the latch from unlocking and a first inclined surface for causing the stop block to be submerged in the limiting groove when the latch is locked, and the abutting block includes a second inclined surface for causing the stop block to be submerged in the limiting groove when the transmission member performs the unlocking action.

[0007] The advantages of this design are as follows: The limiting component adopts a layout with one end pivoting and the other end elastically supported, installed in the limiting groove of the lock housing. The overall structure occupies little space, and the movement stroke is stable and controllable. The vertical surface of the stop block can form a surface contact with the side wall of the latch in the locked state, with strong load-bearing capacity and can withstand large external prying impacts, effectively limiting the rotation of the latch in the unlocking direction and ensuring the stability of the locked state. The first inclined surface can form an inclined guide cooperation with the side wall of the latch during the latch locking rotation, pushing the limiting component to compress the return spring and sink into the limiting groove. Automatic relocation during the locking process can be achieved without additional drive components, simplifying the locking action logic. The second inclined surface of the contact block can form an inclined transmission with the contact action of the transmission component, converting the circumferential rotation of the transmission component into the swing displacement of the limiting component, smoothly pushing the stop block out of the latch movement trajectory. There is no hard impact during the transmission process, and the wear of components is small. With the reset action of the return spring, the limiting function can achieve rapid response and automatic reset. The overall structure is simple and ingenious, and the operation is highly reliable.

[0008] As a further feature of the present invention, the contact surface between the lock housing and the first inclined surface, and the contact surface between the transmission component and the second inclined surface, are both inclined.

[0009] The beneficial effects of this design are as follows: by setting the contact surfaces between the lock housing and the first inclined surface, and between the transmission component and the second inclined surface, both are inclined surfaces, the transmission and engagement of the limiting components are further optimized, improving the overall smoothness of operation and service life. During the locking process, the lock sidewall contacts the first inclined surface of the stop block along the inclined surface of the lock housing. The double-inclined surface contact transmission increases the contact area, reduces the contact stress per unit area, and avoids component breakage and burr jamming caused by sharp corner contact. This makes the stop block's repositioning action smoother, reducing resistance and abnormal noise during the locking action. During the process of the transmission component pushing the limiting component to release the limit, the inclined surface on the transmission component side forms a surface contact transmission with the second inclined surface of the contact block. This smoothly converts the circumferential rotational torque into the swing force of the limiting component, avoiding the problem of excessively rapid local wear caused by single-point contact. At the same time, it reduces energy loss during the transmission process, improves the transmission efficiency of the motor drive, and also reduces the operating torque when the mechanical key is unlocked, improving the manual unlocking feel.

[0010] As a further feature of the present invention, a rotating shaft is provided in the lock housing, and the transmission component is rotatably connected to the lock buckle on the rotating shaft. The transmission component includes an upper support plate and a lower support plate. The upper support plate and the lower support plate are respectively provided with connecting holes for engaging with the rotating shaft. The connecting holes of the upper support plate and the lower support plate are coaxially arranged. The upper support plate and the lower support plate are connected by a transition plate. The outer peripheral wall of the upper support plate is provided with transmission teeth. The upper support plate is connected to the main gear through the transmission teeth. The transmission groove is provided on the upper support plate. The outer peripheral wall of the lower support plate is provided with abutting protrusions for abutting against the abutting block. The mating block is provided on the lower end face of the lower support plate.

[0011] The advantages of this design are as follows: the upper and lower support plates are connected as a whole by a transition plate and are fitted together on the rotating shaft, resulting in high coaxiality and balanced force distribution during rotation, reducing the likelihood of swaying or jamming. The upper support plate has transmission teeth on its outer periphery that mesh with the main gear, and a transmission groove on the upper support plate that engages with the transmission block of the latch, allowing for simultaneous power input and latch drive functions, reducing the need for intermediate transmission components. The lower support plate has abutment protrusions on its outer periphery that rotate with the transmission component to abut against the abutment block of the limiting component, triggering the release of the limit. A mating block on the lower end face of the lower support plate engages with the lock cylinder groove of the lock cylinder plate, directly receiving the power input for mechanical unlocking. This layered structure integrates four functions—gear transmission, latch drive, limit triggering, and lock cylinder engagement—into a single transmission component, significantly reducing the number of parts inside the lock body, compressing the axial and radial layout space of the lock body, making the overall structure more compact. Simultaneously, the layered structure distributes force, allowing it to withstand greater transmission torque and improving the structural strength and service life of the transmission components.

[0012] As a further feature of the present invention, the transition plate is arranged circumferentially along the connecting hole, and the transition plate is arc-shaped.

[0013] The advantages of this design are as follows: the evenly distributed arc-shaped transition plates along the circumference form a stable support frame between the upper and lower support plates. Compared to solid plate structures, this significantly reduces material usage and the overall weight of the transmission components while ensuring overall structural rigidity and torsional strength. This, in turn, reduces the starting load on the drive motor and improves the power response speed. The arc-shaped structure also provides a more uniform stress distribution, avoiding stress concentration issues caused by right-angle transitions. Under repeated transmission torque and impact loads, it is less prone to structural fracture and deformation failure, thus improving the fatigue life of the transmission components.

[0014] As a further feature of the present invention, the clutch assembly includes a reduction gear, a first driven gear, a lifting gear, a damper, and a second driven gear. The reduction gear is connected to the output end of the drive motor. The first driven gear, the lifting gear, and the second driven gear are coaxially arranged and rotatably connected in the lock housing. The second driven gear meshes with the main gear, and the first driven gear meshes with the reduction gear. The lifting gear is located below the first driven gear. The first driven gear has several lifting grooves. The end face of the lifting gear has a lifting boss corresponding to the lifting groove. The cross-section of the lifting boss is triangular or trapezoidal with a smaller top and a larger bottom. The lifting boss is inserted into the lifting groove. The end of the first driven gear facing the second driven gear has a mating groove, and the end of the second driven gear facing the first driven gear has a mating tooth. The mating tooth and the mating groove engage to form a transmission connection between the first driven gear and the second driven gear. An abutting spring is also present between the first driven gear and the second driven gear to disengage the mating tooth from the mating groove. The damper is located on one side of the lifting gear and meshes with the lifting gear.

[0015] The beneficial effects of this design are as follows: During normal electric unlocking, the drive motor drives the first driven gear to rotate via the reduction gear. The first driven gear, through the engagement of the lifting groove and the trapezoidal lifting boss, drives the lifting gear to rotate synchronously. Due to the rotational resistance of the damper on the lifting gear, the first driven gear undergoes circumferential displacement relative to the lifting gear. The trapezoidal lifting boss lifts the first driven gear along the inclined surface of the lifting groove, causing the mating groove of the first driven gear to engage with the mating teeth of the second driven gear, thus connecting the power link and enabling the main gear to complete the unlocking action. When the motor stops, the lifting boss resets, and the contact spring pushes the first and second driven gears apart, disconnecting the power link. External force cannot be transmitted back to the motor end, protecting the motor and reduction structure from damage, while significantly increasing the difficulty of forced entry. The damper controls the rotation speed of the lifting gear, ensuring a smooth transition during clutch engagement and disengagement, avoiding damage from tooth impact, improving the smoothness and service life of clutch switching. The overall clutch logic is ingenious, achieving automatic clutch engagement without additional electronic control components, resulting in high reliability.

[0016] As a further feature of the present invention, the lock cylinder is provided with a reset flange on the outer peripheral wall of one end of the lock housing, which is used to abut against the first driven gear when the lock cylinder rotates, so that the mating teeth and the mating groove are kept in a disengaged state. The reset flange is provided at the position corresponding to the first driven gear.

[0017] The beneficial effects of this design are as follows: When emergency unlocking is performed by turning the lock cylinder with the mechanical key, the reset flange on the outer periphery of the lock cylinder rotates synchronously with the lock cylinder, directly contacting the end face of the first driven gear and continuously pressing down on it. This keeps the mating teeth disengaged from the mating groove, completely disconnecting the transmission link on the motor side. This design, on the one hand, prevents the torque of the latch from being transmitted in reverse through the transmission chain to the drive motor and reduction gear during mechanical unlocking, preventing damage to components caused by reverse motor rotation and effectively protecting the electric drive system. On the other hand, it eliminates the rotational resistance from the motor and reduction structure during mechanical unlocking, significantly reducing the operating torque of the mechanical key and improving the feel and efficiency of manual unlocking. The reset flange is integrated with the lock cylinder, eliminating the need for additional linkage components. The structure is simple and compact, maintaining pressure on the first driven gear throughout the entire stroke of the lock cylinder rotation, ensuring the clutch remains disengaged throughout the entire mechanical unlocking process. This reliable action logic enhances the stability of use in emergency unlocking scenarios.

[0018] As a further feature of the present invention, a lock cylinder arm is provided on the outer peripheral wall of the lock cylinder, and an abutting flange is provided on the lock cylinder plate at the position corresponding to the lock cylinder arm, and the lock cylinder arm abuts against the abutting flange.

[0019] The advantages of this design are as follows: When the lock cylinder rotates, the outer lock cylinder arm swings synchronously, pushing the lock cylinder plate to slide linearly along the slide rail inside the lock case by contacting the contact flange on the lock cylinder plate. This, in turn, drives the transmission component to rotate through the engagement of the lock cylinder groove and the mating block, completing the mechanical unlocking action. This transmission method uses rigid contact drive, resulting in small transmission gaps, fast response, and precise transmission of the lock cylinder's rotation stroke, ensuring the accuracy of the unlocking action. The lock cylinder arm and the contact flange have a surface contact fit, providing strong load-bearing capacity and withstanding large operating torques, making it less prone to deformation, breakage, or failure. Furthermore, this structure is flexible; the transmission ratio can be adjusted by changing the length of the lock cylinder arm and the position of the contact flange to accommodate different lock cylinder rotation angles and lock cylinder plate sliding stroke requirements, facilitating product serialization design. The overall structure has fewer parts, reducing assembly difficulty. Combined with the lock cylinder reset component, it can achieve automatic reset after unlocking, ensuring that the lock cylinder plate returns to its initial position after each locking, maintaining the accuracy of the transmission engagement.

[0020] As a further feature of the present invention, a sensing groove is also provided in the lock groove, and a sensing plate is slidably fitted in the sensing groove. One end of the sensing plate is exposed in the lock groove, and the other end is inserted into the lock housing. A micro switch is provided in the lock housing at the position corresponding to the sensing plate, which is used to trigger an electrical signal when the sensing plate slides due to being abutted by the gun body of the gun to be locked.

[0021] The beneficial effects of this design are as follows: when the firearm is inserted into the lock slot, the side wall of the firearm presses against the sensor plate exposed in the lock slot, pushing the sensor plate along the sensor groove into the lock housing, thereby activating the micro switch to send an electrical signal; when the firearm is removed, the sensor plate loses the external pressure, the micro switch resets and switches its signal state. This in-situ detection structure can accurately identify whether a firearm is inserted into the lock slot. On the one hand, it can work with the electronic control system to achieve automatic locking after the firearm is in place, avoiding missed locking due to manual operation and improving the security of firearm management; on the other hand, it can upload the in-situ signal to the control system to achieve centralized monitoring of the in-situ status of multiple firearms, facilitating standardized and information-based management of firearms. The sensor plate adopts a sliding engagement form, with stable movement stroke, adaptable to different firearm body shapes and sizes, and high trigger reliability; the micro switch is sensitive to triggering and has a stable signal, adaptable to various usage environments such as warehousing and guard duty, and can maintain accurate detection accuracy even after long-term use. The overall structure is simple, easy to integrate and install, and does not occupy additional external space of the lock body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal layout structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the latch structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the transmission component in an embodiment of the present invention; Figure 5 This is a partial enlarged view of the position of the limiting member in an embodiment of the present invention; Figure 6 This is a schematic diagram of the lock core plate in an embodiment of the present invention; Figure 7 This is a side view of the clutch assembly location in an embodiment of the present invention; Figure 8 This is a schematic diagram of the layout structure of the clutch assembly in an embodiment of the present invention; Figure 9 This is an exploded view showing the positions of the first driven gear, the lifting gear, and the second driven gear in an embodiment of the present invention. Detailed Implementation

[0023] Examples of embodiments of the gun lock of the present invention Figures 1 to 9The lock includes a lock case 1, a lock cylinder 2, and a lock groove 11 for abutting against the body of the weapon to be locked. A latch 3 is positioned corresponding to the lock groove 11. The lock case 1 contains a main gear 5, a transmission component 4, and a drive motor 6. The drive motor 6 is connected to the main gear 5 via a clutch assembly. The main gear 5 is also connected to the transmission component 4. The latch 3 includes a locking arm 31 exposed in the lock groove 11 and a connecting arm 32 disposed within the lock case 1. The connecting arm 32 is rotatably disposed within the lock case 1. The transmission component 4 is coaxially arranged with the connecting arm 32 and has a transmission groove 46. A transmission block 33 extends from the connecting arm 32 into the transmission groove 46. The sidewall of the transmission groove 46 abuts against the transmission block 33, driving the transmission component 4 to rotate and lock or unlock the latch 3. A limiting component 8 is movably disposed within the lock case 1. The lock is equipped with a stop 82 for restricting the movement of the latch 3 to unlock, and a stop block 81 for being pushed away from the movement path of the latch 3 by the transmission member 4. The stop 82 is set on the movement trajectory of the latch 3, and the stop block 81 is set on the movement trajectory of the transmission member 4. A rotational allowance is provided between the transmission groove 46 and the transmission block 33 for the transmission member 4 to rotate and push against the stop block 81. A reset spring 83 is provided between the lock housing 1 and the limiting member 8 for resetting the limiting member 8 so that the stop 82 is blocked on the movement trajectory of the latch 3. A lock core plate 7 is slidably arranged in the lock housing 1. The lock core plate 7 is connected to the lock core 2. A lock core groove 71 and a mating block 47 are provided between the lock core plate 7 and the transmission member 4 for driving the transmission member 4 to rotate and push against the stop block 81. The lock core groove 71 and the mating block 47 are engaged. A lock core 2 reset member is provided on the lock housing 1 at the position corresponding to the lock core plate 7 for resetting the lock core plate 7. The beneficial effects of this design are as follows: the drive motor 6 transmits power to the transmission component 4 via the clutch assembly and the main gear 5. The transmission component 4 is coaxially arranged with the latch 3 and forms a cooperation through the transmission groove 46 and the transmission block 33. While ensuring stable transmission of torque, it significantly reduces the layout space inside the lock body, making the overall structure more compact and adaptable to the narrow installation conditions around heavy machine guns. The rotational margin reserved between the transmission groove 46 and the transmission block 33 allows the transmission component 4 to first circumferentially rotate to abut against the abutment block 81 of the limiting component 8 when performing the unlocking action, pushing the stop block 82 completely out of the movement trajectory of the latch 3, and then driving the latch 3 to rotate synchronously to unlock. This forms a fixed action sequence of first releasing the limit and then performing the unlocking action, which avoids interference and jamming of moving parts and ensures that the stop block 82 always blocks the movement path of the latch 3 in the locked state, resisting the risk of accidental unlocking caused by gun vibration and external prying. The lock cylinder 2 directly drives the transmission component 4 to rotate through the lock cylinder plate 7. In extreme scenarios such as power failure or motor failure, emergency unlocking can be completed by mechanical key, which improves the product's environmental tolerance.The reset spring 83 and the lock cylinder 2 reset component can automatically reset each functional component after unlocking, ensuring the repeatability accuracy of the locking action. The overall transmission link is clear, the functional integration is high, and it has good reliability.

[0024] As a further feature of this embodiment, a limiting groove is provided in the lock housing 1, and one end of the limiting member 8 is sway-connected in the limiting groove. The return spring 83 abuts against the limiting member 8 and the bottom surface of the limiting groove. The stop block 82 includes a vertical surface for abutting against the latch 3 to restrict the latch 3 from unlocking and a first inclined surface for causing the stop block 82 to be submerged in the limiting groove when the latch 3 is locked. The abutting block 81 includes a second inclined surface for causing the stop block 82 to be submerged in the limiting groove when the transmission member 4 performs the unlocking action. The beneficial effect of this configuration is that the limiting member 8 adopts a layout with one end swaying and the other end elastically supported. It is installed in the limiting groove of the lock housing 1, the overall structure occupies little space, and the movement stroke is stable and controllable. The vertical surface of the stop block 82 can form a surface contact with the side wall of the latch 3 in the locked state, providing strong load-bearing capacity and withstanding significant external prying impacts. This effectively restricts the latch 3 from rotating in the unlocking direction, ensuring the stability of the locked state. The first inclined surface can form an inclined guide with the side wall of the latch 3 during the locking rotation process, pushing the limit member 8 to compress the return spring 83 into the limit groove. This achieves automatic retraction during the locking process without additional drive components, simplifying the locking action logic. The second inclined surface of the abutment block 81 can form an inclined transmission with the abutment action of the transmission member 4, converting the circumferential rotation of the transmission member 4 into the swing displacement of the limit member 8. This smoothly pushes the stop block 82 out of the latch 3's movement trajectory. The transmission process is free of hard impacts, resulting in minimal component wear. Combined with the reset action of the return spring 83, it achieves rapid response and automatic reset of the limit function. The overall structure is simple and ingenious, with high operational reliability.

[0025] As a further feature of this embodiment, the contact surfaces of the lock housing 1 with the first inclined surface and the transmission component 4 with the second inclined surface are both inclined. The beneficial effect of this design is that by setting the contact surfaces of the lock housing 1 with the first inclined surface and the transmission component 4 with the second inclined surface as inclined surfaces, the transmission engagement effect of the limiting component 8 is further optimized, improving the overall smoothness of operation and service life. During the locking process of the latch 3, the side wall of the latch 3 contacts and engages with the first inclined surface of the stop block 82 along the inclined surface of the lock housing 1. The double-inclined surface engagement transmission increases the contact area, reduces the contact stress per unit area, avoids component breakage and burr jamming caused by sharp corner contact, and makes the stop block 82's clearance action smoother, reducing resistance and abnormal noise during the locking action. During the process of the transmission component 4 pushing the limiting component 8 to release the limit, the inclined surface on the side of the transmission component 4 and the second inclined surface of the contact block 81 form a surface contact transmission, which can smoothly convert the circumferential rotational torque into the swing force of the limiting component 8, avoid the problem of excessive local wear caused by single-point contact, reduce energy loss in the transmission process, improve the transmission efficiency of the motor drive, and also reduce the operating torque when the mechanical key is unlocked, improving the operating feel of manual unlocking.

[0026] As a further feature of this embodiment, a rotating shaft is provided in the lock housing 1, and the transmission component 4 is rotatably connected to the lock buckle 3 on the rotating shaft. The transmission component 4 includes an upper support plate 41 and a lower support plate 42. The upper support plate 41 and the lower support plate 42 are respectively provided with connecting holes 44 for engaging with the rotating shaft. The connecting holes 44 of the upper support plate 41 and the lower support plate 42 are coaxially arranged. The upper support plate 41 and the lower support plate 42 are connected by a transition plate 43. The outer peripheral wall of the upper support plate 41 is provided with transmission teeth 45. The upper support plate 41 is connected to the main gear 5 through the transmission teeth 45. The transmission groove 46 is provided on the upper support plate 41. The outer peripheral wall of the lower support plate 42 is provided with abutting protrusions 48 for abutting against the abutting block 81. The mating block 47 is provided on the lower end face of the lower support plate 42. The advantages of this design are as follows: the upper support plate 41 and the lower support plate 42 are connected as a whole by the transition plate 43 and are fitted together on the rotating shaft, resulting in high coaxiality and balanced force during rotation, making it less prone to swaying and jamming. The upper support plate 41 has transmission teeth 45 on its outer periphery that mesh with the main gear 5. Simultaneously, a transmission groove 46 is provided on the upper support plate 41 to cooperate with the transmission block 33 of the latch 3, allowing for simultaneous completion of both power input and latch 3 drive functions, reducing the need for intermediate transmission components. The lower support plate 42 has abutment protrusions 48 on its outer periphery, which rotate with the transmission component 4 to abut against the abutment block 81 of the limiting component 8, triggering the release of the limit. A mating block 47 is provided on the lower end face of the lower support plate 42 to engage with the lock cylinder groove 71 of the lock cylinder plate 7, allowing direct reception of the power input for mechanical unlocking. This layered structure integrates four functions—gear transmission, latch 3 drive, limit trigger, and lock cylinder 2—into a single transmission component 4. This significantly reduces the number of parts inside the lock body, compresses the axial and radial layout space of the lock body, and makes the overall structure more compact. At the same time, the layered structure distributes the force, can withstand greater transmission torque, and improves the structural strength and service life of the transmission components.

[0027] As a further feature of this embodiment, the transition plate 43 is arranged circumferentially along the connecting hole 44, and the transition plate 43 is arc-shaped. The advantages of this arrangement are: the arc-shaped transition plate 43 is evenly distributed circumferentially, forming a stable support frame between the upper support plate 41 and the lower support plate 42. Compared to a solid plate structure, while ensuring overall structural rigidity and torsional strength, it significantly reduces material usage, lowers the overall weight of the transmission component 4, thereby reducing the starting load of the drive motor 6 and improving the power response speed. The arc-shaped structure has a more uniform stress distribution, avoiding stress concentration problems caused by right-angle transitions. When repeatedly subjected to transmission torque and impact loads, it is less prone to structural fracture and deformation failure, thus improving the fatigue life of the transmission component 4.

[0028] As a further provision of this embodiment, the clutch assembly includes a reduction gear 61, a first driven gear 62, a lifting gear 63, a damper 65, and a second driven gear 64. The reduction gear 61 is connected to the output end of the drive motor 6. The first driven gear 62, the lifting gear 63, and the second driven gear 64 are coaxially arranged and rotatably connected in the lock housing 1. The second driven gear 64 meshes with the main gear 5, and the first driven gear 62 meshes with the reduction gear 61. The lifting gear 63 is located below the first driven gear 62. The first driven gear 62 is provided with a plurality of lifting grooves 621, and the end face of the lifting gear 63 is provided with lifting grooves 621 corresponding to the lifting grooves 621. The lifting boss 631 has a triangular cross-section and is inserted into the lifting groove 621. The first driven gear 62 has a mating groove 622 at one end facing the second driven gear 64, and the second driven gear 64 has a mating tooth 641 at one end facing the first driven gear 62. The mating tooth 641 engages with the mating groove 622 to form a transmission connection between the first driven gear 62 and the second driven gear 64. There is also an abutting spring between the first driven gear 62 and the second driven gear 64 to disengage the mating tooth 641 from the mating groove 622. The damper 65 is disposed on one side of the lifting gear 63 and meshes with the lifting gear 63. The beneficial effects of this design are as follows: During normal electric unlocking, the drive motor 6 drives the first driven gear 62 to rotate via the reduction gear 61. The first driven gear 62, through the engagement of the lifting groove 621 and the trapezoidal lifting boss 631, drives the lifting gear 63 to rotate synchronously. Due to the rotational resistance of the damper 65 on the lifting gear 63, the first driven gear 62 undergoes circumferential displacement relative to the lifting gear 63. The trapezoidal lifting boss 631 lifts the first driven gear 62 along the inclined surface of the lifting groove 621, causing the mating groove 622 of the first driven gear 62 to engage with the mating teeth 641 of the second driven gear 64, thus connecting the power link and enabling the main gear 5 to complete the unlocking action. When the motor stops, the lifting boss 631 resets, and the contact spring pushes the first driven gear 62 and the second driven gear 64 to separate, disconnecting the power link. External force cannot be transmitted back to the motor end, protecting the motor and reduction structure from damage, while significantly increasing the difficulty of breaking the lock through forceful prying. The damper 65 controls the rotation speed of the lifting gear 63, ensuring a smooth transition during clutch engagement and disengagement, avoiding gear impact damage, improving the smoothness and service life of clutch switching. The overall clutch logic is ingenious, achieving automatic clutch engagement without additional electronic control components, resulting in high reliability.

[0029] As a further feature of this embodiment, the lock cylinder 2 is provided with a reset flange 21 on the outer peripheral wall of one end of the lock housing 1. This reset flange 21 is used to contact the first driven gear 62 when the lock cylinder 2 rotates, keeping the mating teeth 641 and the mating groove 622 disengaged. The reset flange 21 is positioned corresponding to the first driven gear 62. The beneficial effect of this design is that when the lock cylinder 2 is turned by the mechanical key to perform emergency unlocking, the reset flange 21 on the outer periphery of the lock cylinder 2 rotates synchronously with the lock cylinder 2, directly contacting the end face of the first driven gear 62 and continuously pressing down on the first driven gear 62, keeping the mating teeth 641 disengaged from the mating groove 622, and completely disconnecting the transmission link on the motor side. This design, on the one hand, avoids the rotational torque of the latch 3 being transmitted in reverse to the drive motor 6 and the reduction gear 61 through the transmission chain during mechanical unlocking, preventing damage to components caused by the reverse rotation of the motor and effectively protecting the electric drive system; on the other hand, it eliminates the rotational resistance caused by the motor and reduction structure during mechanical unlocking, significantly reducing the operating torque of the mechanical key and improving the feel and efficiency of manual unlocking. The reset flange 21 is integrated with the lock cylinder 2, eliminating the need for additional linkage components. The structure is simple and compact, and it can maintain the downward pressure on the first driven gear 62 throughout the entire rotation stroke of the lock cylinder 2. This ensures that the clutch is always disengaged during the entire mechanical unlocking process, making the action logic reliable and improving the stability of use in emergency unlocking scenarios.

[0030] As a further feature of this embodiment, a lock cylinder arm 22 is provided on the outer peripheral wall of the lock cylinder 2, and an abutting flange 72 is provided on the lock cylinder plate 7 corresponding to the position of the lock cylinder arm 22. The lock cylinder arm 22 abuts against the flange of the lock cylinder 2. The beneficial effect of this configuration is that when the lock cylinder 2 rotates, the outer peripheral lock cylinder arm 22 swings synchronously, pushing the lock cylinder plate 7 to slide linearly along the slide rail inside the lock case 1 by abutting against the abutting flange 72 on the lock cylinder plate 7. Then, through the engagement of the lock cylinder groove 71 and the mating block 47, the transmission component 4 is driven to rotate, completing the mechanical unlocking action. This transmission form adopts rigid abutting drive, with small transmission gap, fast action response, and can accurately transmit the rotation stroke of the lock cylinder 2, ensuring the accuracy of the unlocking action. The lock cylinder arm 22 and the abutting flange 72 are in surface contact, with strong load-bearing capacity, can withstand large operating torque, and are not prone to deformation, breakage, or failure. Meanwhile, the flexible structure allows for adjustment of the transmission ratio by changing the length of the lock cylinder arm 22 and the position of the contact flange 72, adapting to different rotation angles of the lock cylinder 2 and sliding stroke requirements of the lock cylinder plate 7, facilitating product serialization design. The overall structure has few parts, reducing assembly difficulty. Combined with the lock cylinder 2 reset component, it enables automatic reset after unlocking, ensuring that the lock cylinder plate 7 returns to its initial position after each locking, maintaining the precision of the transmission engagement.

[0031] As a further feature of this embodiment, a sensing groove is also provided in the lock groove 11, and a sensing plate 9 is slidably fitted in the sensing groove. One end of the sensing plate 9 is exposed in the lock groove 11, and the other end is inserted into the lock housing 1. A micro switch is provided in the lock housing 1 at the position corresponding to the sensing plate 9, which is used to trigger an electrical signal when the sensing plate 9 slides due to being pressed against the body of the gun to be locked. The beneficial effect of this configuration is that when the gun body is inserted into the lock groove 11, the side wall of the gun body presses against the sensing plate 9 exposed in the lock groove 11, pushing the sensing plate 9 to slide along the sensing groove into the lock housing 1, thereby triggering the micro switch to emit an electrical signal; when the gun is removed, the sensing plate 9 loses the external force, the micro switch resets and switches the signal state. This in-situ detection structure can accurately identify whether a firearm is installed in the lock slot 11. On the one hand, it can work with the electronic control system to automatically lock after the firearm is in place, avoiding missed locks caused by manual operation and improving the security of firearm management. On the other hand, it can upload the in-situ signal to the control system to achieve centralized monitoring of the in-situ status of multiple firearms, facilitating standardized and information-based management of firearms. The induction plate 9 adopts a sliding engagement form, with stable movement stroke, adaptable to different firearm body shapes and sizes, and high trigger reliability. The micro switch is sensitive to triggering and has a stable signal, adaptable to various usage environments such as warehousing and guard duty, and can maintain accurate detection accuracy even after long-term use. The overall structure is simple, easy to integrate and install, and does not occupy additional external space of the lock body.

[0032] The above examples are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A gun lock, comprising a lock case, a lock cylinder disposed on the lock case, a lock groove disposed on the lock case for abutting against the body of a firearm to be locked, and a latch disposed on the lock case corresponding to the lock groove, characterized in that: The lock housing contains a main gear, a transmission component, and a drive motor. The drive motor is connected to the main gear via a clutch assembly. The main gear is also connected to the transmission component. The latch includes a locking arm exposed in a lock groove and a connecting arm disposed within the lock housing. The connecting arm is rotatably mounted within the lock housing. The transmission component is coaxially mounted with the connecting arm and has a transmission groove. A transmission block extends from the connecting arm into the transmission groove. The sidewall of the transmission groove abuts against the transmission block, driving the transmission component to lock or unlock the latch. A limiting component is movably disposed within the lock housing. This limiting component includes a stop for restricting the latch's movement during unlocking and a stop for being abutted by the transmission component. The block is an abutting block that moves away from the movement path of the latch. The stop block is set on the movement trajectory of the latch, and the abutting block is set on the movement trajectory of the transmission component. A rotational allowance is provided between the transmission groove and the transmission block for the transmission component to rotate and abut the abutting block. A reset spring is provided between the lock housing and the limiting component for resetting the limiting component so that the stop block is blocked on the movement trajectory of the latch. A lock cylinder plate is slidably arranged in the lock housing. The lock cylinder plate is drivenly connected to the lock cylinder. A lock cylinder groove and a mating block are provided between the lock cylinder plate and the transmission component for driving the transmission component to rotate and abut the abutting block. The lock cylinder groove and the mating block are engaged. A lock cylinder reset component is provided in the lock housing at the position corresponding to the lock cylinder plate for resetting the lock cylinder plate.

2. The gun lock according to claim 1, characterized in that: The lock housing is provided with a limiting groove, one end of the limiting member is oscillatingly connected in the limiting groove, the return spring abuts between the limiting member and the bottom surface of the limiting groove, the stop block includes a vertical surface for abutting the latch to restrict the latch from unlocking and a first inclined surface for causing the stop block to sink into the limiting groove when the latch is locked, the abutting block includes a second inclined surface for causing the stop block to sink into the limiting groove when the transmission member performs the unlocking action.

3. The gun lock according to claim 2, characterized in that: The contact surfaces of the lock housing with the first inclined surface and the contact surfaces of the transmission component with the second inclined surface are both inclined.

4. The gun lock according to claim 1, characterized in that: The lock housing is provided with a rotating shaft, and the transmission component is rotatably connected to the lock buckle on the rotating shaft. The transmission component includes an upper support plate and a lower support plate. The upper support plate and the lower support plate are respectively provided with connecting holes for engaging with the rotating shaft. The connecting holes of the upper support plate and the lower support plate are coaxially arranged. The upper support plate and the lower support plate are connected by a transition plate. The outer peripheral wall of the upper support plate is provided with transmission teeth. The upper support plate is connected to the main gear through the transmission teeth. The transmission groove is provided on the upper support plate. The outer peripheral wall of the lower support plate is provided with abutting protrusions for abutting against the abutting block. The mating block is provided on the lower end face of the lower support plate.

5. The gun lock according to claim 4, characterized in that: The transition plate is arranged circumferentially along the connecting hole, and the transition plate is arc-shaped.

6. The gun lock according to claim 1, characterized in that: The clutch assembly includes a reduction gear, a first driven gear, a lifting gear, a damper, and a second driven gear. The reduction gear is connected to the output end of the drive motor. The first driven gear, the lifting gear, and the second driven gear are coaxially arranged and rotatably connected in the lock housing. The second driven gear meshes with the main gear, and the first driven gear meshes with the reduction gear. The lifting gear is located below the first driven gear and has several lifting grooves. A lifting boss is provided on the end face of the lifting gear corresponding to the lifting groove. The cross-section of the lifting boss is triangular or trapezoidal with a smaller top and a larger bottom. The lifting boss is inserted into the lifting groove. A mating groove is provided at the end of the first driven gear facing the second driven gear, and a mating tooth is provided at the end of the second driven gear facing the first driven gear. The mating tooth and the mating groove engage to form a transmission connection between the first driven gear and the second driven gear. An abutment spring is also present between the first driven gear and the second driven gear to disengage the mating tooth from the mating groove. The damper is located on one side of the lifting gear and meshes with it.

7. The gun lock according to claim 6, characterized in that: The lock cylinder is provided with a reset flange on the outer peripheral wall at one end of the lock housing. This reset flange is used to abut against the first driven gear when the lock cylinder rotates, so that the mating teeth and the mating groove are kept in a disengaged state. The reset flange is positioned corresponding to the first driven gear.

8. The gun lock according to claim 4, characterized in that: A lock cylinder arm is provided on the outer peripheral wall of the lock cylinder, and an abutting flange is provided on the lock cylinder plate at the position corresponding to the lock cylinder arm, and the lock cylinder arm abuts against the abutting flange.

9. The gun lock according to claim 1, characterized in that: The lock groove is also provided with a sensing groove, and a sensing plate is slidably fitted in the sensing groove. One end of the sensing plate is exposed in the lock groove, and the other end is inserted into the lock housing. A micro switch is provided in the lock housing at the position corresponding to the sensing plate, which is used to trigger an electrical signal when the sensing plate slides due to being pressed against by the gun body to be locked.

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