Door locks

Abstract

The invention discloses a door lock, comprising a lock body, a main lock tongue, a driving gear, a driving seat and a handle seat on the lock body, the main lock tongue is connected with the driving gear, the handle seat is provided with a driving gear meshing with the driving gear, the driving seat and the lock body are slidably matched, a driving motor, a first driven gear, a lifting gear, a damper and a second driven gear are provided on the driving seat, the second driven gear is meshed with the driving gear, the first driven gear is meshed with the driving motor, a lifting groove is provided on the first driven gear, a lifting boss inserted in the lifting groove is provided on the lifting gear, matching teeth and a reset spring are provided between the first driven gear and the second driven gear, the damper is meshed with the lifting gear, a compression spring is provided between the lock body and the driving seat, and a resisting flange is provided on the outer peripheral wall of the handle seat. The door lock has a simple structure, a quick clutch operation response, a reliable transmission structure and a good use effect.

Description

Technical Field

[0001] The invention relates to a door lock. Background Art

[0002] In existing smart locks or electronic door locks, a motor structure is usually configured to achieve automatic unlocking and locking actions. In order to ensure safe use and emergency unlocking, a clutch mechanism needs to be set on the transmission structure of the motor to ensure the safety of the overall structure. For example, the patent number is CN201811525522.8, and the authorized patent named "Ball Clutch Structure Applied to Door Closer" discloses a clutch structure. When the motor is started or interrupted, the clutch reaction of this clutch structure is slow, which affects the user experience. At the same time, this structure is also complex and cumbersome to assemble, which affects the production and processing efficiency and is not conducive to improving the economic benefits of the product. At the same time, the existing clutch structure is not stable enough, and it is easy to fail during use, which affects the normal use of the door lock. In addition, the existing structure lacks emergency measures. After the electric structure fails, it will affect the manual operation structure of the door lock, posing a safety hazard. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a door lock with a simple structure, rapid clutch operation response, reliable transmission structure and good use effect.

[0004] To achieve the above-mentioned purpose, the present invention provides a door lock, including a lock body, on which are provided a main lock tongue, a driving gear, a driving seat and a handle seat for manual unlocking, the main lock tongue is transmission-connected with the driving gear, the handle seat is sleeved with a transmission gear, the transmission gear is meshed with the driving gear, the driving seat is slidingly matched with the lock body, at least two driving units are arranged on the driving seat, each driving unit includes a driving motor and a gear set matched between the driving motor and the driving gear, the gear set includes a reduction gear, a first driven gear, a lifting gear, a damper and a second driven gear, the reduction gear is transmission-connected with the output end of the driving motor, the first driven gear, the lifting gear and the second driven gear are coaxially arranged and rotatably connected in the driving seat, the second driven gear is meshed with the driving gear, the first driven gear is meshed with the reduction gear, the lifting gear is arranged below the first driven gear, and the first driven gear is meshed with the reduction gear. The driven gear is provided with a plurality of lifting grooves along the circumference, and a lifting boss is provided on the end surface of the lifting gear corresponding to the lifting groove. The cross section of the lifting boss is a trapezoidal setting with a small top and a large bottom. The lifting boss is inserted in the lifting groove. A first matching tooth is provided on one end of the first driven gear facing the second driven gear, and a second matching tooth is provided on one end of the second driven gear facing the first driven gear. The first matching tooth is meshed with the second matching tooth to form a transmission connection between the first driven gear and the second driven gear. A return spring for loosening the first matching tooth and the second matching tooth is also provided between the first driven gear and the second driven gear. The damper is provided on one side of the lifting gear and meshed with the lifting gear; a compression spring for keeping the second driven gear meshed with the driving gear is provided between the lock body and the driving seat; a contact flange for resisting the sliding of the driving seat to cause the gear set to disengage from the driving gear is provided on the outer peripheral wall of the handle seat.

[0005] The beneficial effect of such a setting is that, in such a setting, multiple groups of drive units are set, and two groups of drive units operate separately, and can perform unlocking actions independently, thereby ensuring the stability of the structure. Even if one group of drive units has problems, the other group of drive units can still be used for emergency. Of course, in order to ensure the service life of the drive units, the program can be set to use the drive units in turn every week or at intervals to ensure that the drive units will not fail due to aging. This degree of setting belongs to the prior art and has good reliability. In each drive unit, when the drive motor is running, the output end of the drive motor drives the reduction gear to rotate, and the reduction gear drives the first driven gear to rotate. Since the first driven gear and the lifting gear cooperate through the lifting groove and the lifting boss, the first driven gear rotates synchronously with the lifting gear, but the damper is arranged on one side of the lifting gear and meshes with it, so that the lifting gear and the first driven gear The wheels produce a speed difference, which makes the first driven gear slide along the side wall inclined surface of the lifting boss in the height direction and compress the return spring. Of course, the resistance force of the return spring here is smaller than the component force driving the first driven gear to move in the height direction, so that the first matching tooth on the first driven gear is meshed with the second matching tooth of the second driven gear, thereby realizing the transmission cooperation between the first driven gear and the second driven gear, and driving the main lock tongue to slide. When the driving motor stops running, the first driven gear stops rotating due to the loss of power source, so that the first matching tooth and the second matching tooth are loosened under the action of the return spring, so that the second driven gear can run idle, completing the overall clutch action. The clutch operation of this structure responds quickly, the structure is simple and reliable, and the layout is also very reasonable, which effectively improves the reliability of the overall structure, ensures that the lock can be unlocked smoothly during emergency unlocking, ensures safe use, and has good use effect. Furthermore, when the handle seat is working, the contact flange can contact the drive seat to make the drive seat slide, thereby disengaging the gear set on the drive seat from the engagement of the drive gear, releasing the drive of the drive gear by the motor, ensuring that manual unlocking can complete the unlocking action, avoiding being stuck by the motor structure, and improving the safety of the structure.

[0006] As a further configuration of the present invention, a connecting sleeve is provided on the end face of the first driven gear facing the second driven gear wheel, a tooth groove is provided at the end of the connecting sleeve, the first mating tooth is provided in the tooth groove, and the reset spring sleeve is provided outside the connecting sleeve.

[0007] The beneficial effect of such a setting is that the tooth groove at the end of the connecting sleeve provides an effective protective barrier for the first matching tooth. When the gear system is running, the first matching tooth is in the tooth groove, avoiding its direct exposure to the outside, thereby greatly reducing the risk of damage to the first matching tooth due to external impact, collision or impurity intrusion, ensuring the integrity of its structure and the stability of its meshing performance, and effectively guaranteeing the reliability and accuracy of the entire transmission process. At the same time, the tooth groove also has a guiding function for the second matching tooth. In the dynamic process of gear interaction, the specific shape and size of the tooth groove can accurately guide the second matching tooth into the correct meshing position, so that it can achieve close and efficient matching with the first matching tooth. This guiding effect not only reduces the friction and jamming phenomenon during gear meshing, improves the transmission efficiency, but also reduces the noise and vibration caused by poor meshing, creating a more stable and quiet operating environment for the entire mechanical device. In addition, the reset spring sleeved outside the connecting sleeve can buffer the impact force during the gear meshing process to a certain extent, further enhancing the stability and durability of the entire structure, so that it can adapt to complex and changeable working conditions and ensure long-term stable operation of the equipment.

[0008] As a further configuration of the present invention, a matching platform is provided on the end face of the first driven gear, the lifting groove is provided on the matching platform, a protruding block is provided on the end of the lifting boss, a contact platform is provided on the contact surface between the lifting gear and the first driven gear, the diameter of the contact platform is larger than the diameter of the lifting gear, and the lifting bosses are arranged on the contact platform at intervals.

[0009] The beneficial effect of such a setting is that by setting a matching platform on the end face of the first driven gear and arranging the lifting groove thereon, this design effectively improves the structural strength of the first driven gear at the lifting groove position. The existence of the matching platform provides additional support and reinforcement for the surrounding area of ​​the lifting groove, so that this part can better resist deformation and fatigue damage when it is subjected to the frequent lifting force of the lifting gear and the transmission torque. This not only ensures the structural integrity of the first driven gear itself, but also ensures the stability and reliability of the entire transmission system during long-term operation, reduces the possibility of failure caused by insufficient local structural strength, and thus reduces the maintenance cost and downtime of the equipment. The protruding block set at the end of the lifting boss further optimizes the stability of the transmission structure. When lifting to the maximum position, the protruding block is closely matched with the lifting groove, which can accurately limit the displacement of the first driven gear and prevent it from unnecessary shaking or offset. This close combination greatly enhances the combination stability of the lifting gear and the first driven gear at the lifting groove position, ensuring the accuracy and efficiency of power transmission. Even in the case of high-speed operation or under heavy load, the positions of the two can be kept stable, ensuring the stable operation of the structure. Furthermore, since the diameter of the contact table is larger than the diameter of the lifting gear, the contact area between the two is greatly increased. First, a larger contact area can make the force distribution more uniform. When the lifting gear is running and interacting with the first driven gear, it will not cause excessive wear due to excessive local force, thereby significantly extending the service life of the gear. Secondly, during the transmission process, the larger contact area can effectively reduce the vibration and noise caused by poor contact between the tooth surfaces, ensure the smooth operation of the entire transmission system, reduce noise interference during equipment operation, and improve the comfort of equipment use and the quietness of the working environment. This structure is simple and easy to produce and process. It provides a solid and reliable foundation for achieving precise mechanical movements, enhances the ability of the equipment to work continuously and stably under complex working conditions, reduces the occurrence of failures due to unstable transmission, and improves the reliability and durability of the equipment.

[0010] As a further configuration of the present invention, a linkage pin and a linkage hole are provided between the handle seat and the transmission gear for linking the handle seat and the transmission gear, and an operating button is provided on the handle seat for driving the linkage pin to engage with the linkage hole.

[0011] The beneficial effect of such a configuration is that the linkage of the operating button and the linkage pin on the handle seat belongs to the prior art, and the specific structure will not be described in detail here. When the operating button is not operated, the rotation of the handle seat is idle. Although the abutment flange will push the drive seat, it will not operate the main lock tongue to retract. Furthermore, when the operating button is operated, the handle seat and the transmission gear can be driven as a whole by the handle seat through the linkage pin and the linkage hole structure. During the rotation of the handle seat, the abutment flange on the handle seat abuts against the drive seat during the rotation, causing the drive seat to slide, thereby causing the gear seat on the drive seat to disengage. The meshing of the driving gear releases the drive of the motor on the driving gear. At the same time, in the subsequent rotation process, as the transmission gear meshes with the driving gear, the manual unlocking action is completed. As a preferred embodiment, in the gear structure here, the driving gear is arranged as a double-layer gear, one layer cooperates with the gear set, and the other layer cooperates with the transmission gear. At the same time, the transmission gear is arranged as a half gear to ensure that when the structure is in use, it can first be pushed away from the driving seat in idle rotation, and then the door can be opened through the meshing action. This structure is simple and reliable in coordination, and it is easy to realize the combination and separation of the motor structure and the lock tongue transmission structure, and has a good use effect.

[0012] As a further configuration of the present invention, the driving seat extends a contact platform toward the contact flange, and the lock body is rotatably provided with a limit member at one side of the contact platform position, and the limit member includes a contact arm extending toward the contact flange and a lock buckle for buckling on the contact platform.

[0013] The beneficial effect of this arrangement is that the abutment platform extending from the drive seat to the abutment flange facilitates the abutment of the abutment flange, so that when the handle seat rotates, the lock buckle can be disengaged from the limit, and the lock buckle ensures the stability of the position of the drive seat. The lock buckle is tightly buckled on the abutment platform, so that it is also firmly fixed in the vertical direction. It effectively resists various external interference forces, whether it is the impact force caused by the shaking of the door or the accidental collision that may occur in daily use, it can ensure that the drive seat always maintains a precise working position. This not only improves the overall stability of the lock body, but also provides a solid guarantee for the reliable operation of the lock, further enhancing its safety and durability, thereby bringing users a better quality and stable use experience.

[0014] As a further configuration of the present invention, a drive plate is connected to the main lock tongue, a drive groove is formed on the drive plate, a drive flange is provided on the drive gear, the drive flange is fitted in the drive groove, the drive groove includes a straight portion, an arc-shaped portion and a transition portion for connecting the straight portion and the arc-shaped portion to form a closed figure, and a positioning groove is provided in the middle of the straight portion.

[0015] The beneficial effect of such a setting is that, through such a driving groove structure, when the driving flange moves with the operation of the driving gear, the driving flange first moves from the straight part to the arc-shaped part, and there is a short idling process at this time. At the same time, the main lock tongue begins to be dragged to retract at the beginning of the arc-shaped part. When the main lock tongue is fully retracted, the driving flange continues to slide along the arc-shaped part. At this time, the driving gear is in an idling state. In this state, the inclined tongue can be driven to retract, so that the inclined tongue and the main lock tongue are driven to retract separately, which is beneficial to ensure the structural stability of the inclined tongue, improve the stability of the structure in use, and has a good use effect.

[0016] As a further configuration of the present invention, a slanted tongue and a connecting rod are telescopically arranged in the lock body, a mounting frame is also arranged in the lock body, the connecting rod and the mounting frame are slidably matched, a resistance spring for keeping the slanted tongue outside the lock body is in contact between the slanted tongue and the mounting frame, the resistance spring is sleeved on the connecting rod, the slanted tongue is rotatably connected to the connecting rod, a transmission flange is arranged on the connecting rod, a transmission protrusion is also arranged on the transmission gear, the transmission protrusion is in contact with the transmission flange to drive the slanted tongue to sink into the lock body.

[0017] The beneficial effect of such a setting is that the inclined tongue and the connecting rod connected thereto cooperate with the mounting frame, and the resistance spring sleeve is arranged on the connecting rod and resists between the inclined tongue and the mounting frame, which cleverly keeps the inclined tongue outside the lock body. This elastic support structure not only ensures the stability of the initial state of the inclined tongue, but also provides reset power for its subsequent actions. The rotational connection between the inclined tongue and the connecting rod makes its movement mode more flexible and changeable, and can better adapt to the working requirements of the lock body. The transmission flange on the connecting rod and the transmission protrusion on the transmission gear conflict with each other. This design realizes the contraction action of the inclined tongue. When the transmission gear is in the idle position, the transmission protrusion acts on the transmission flange to accurately drive the inclined tongue into the lock body. The whole process structure is simple and clear, without complex additional parts and cumbersome transmission links, which greatly reduces the production cost and the probability of failure, while ensuring the efficiency and reliability of the action. On the premise of meeting the basic functions of the lock body, the internal structure and working performance of the lock body are optimized, providing users with a more convenient and stable use experience.

[0018] As a further configuration of the present invention, the connecting rod is provided with a first limiting flange for limiting the connecting rod from escaping from the mounting frame, and the lock body is also rotatably provided with an operating rod, the operating rod is arranged on one side of the connecting rod, and the operating rod is cooperated with a swing arm for being clamped between the first limiting flange and the mounting frame to allow the inclined tongue to be partially inserted into the lock body, and a traction spring for resetting the operating rod to keep the swing arm between the first limiting flange and the mounting frame is also connected between the lock body and the swing arm.

[0019] The beneficial effect of such a configuration is that the base of the inclined bolt here is set as a square bottom, and the lock hole of the lock body is also set as a square hole. When the square bottom is in the lock hole, it has the effect of limiting the rotation of the inclined bolt. When the inclined bolt needs to be reversed, the operating lever is rotated by operating the operating lever so that the swing arm on the operating lever is separated from the position between the first limiting flange and the mounting frame, so that a gap is generated between the first limiting flange and the mounting frame, so that under the action of the resistance spring, the inclined bolt is pushed out a short distance, at this time, the inclined bolt structure is completely separated from the door body, that is, the base of the inclined bolt is no longer restricted by the lock hole, so that the user can operate the inclined bolt to rotate and complete the reversing action of the inclined bolt. This operation is simple and can be completed by ordinary people, with good use experience. After the reversing is completed, the operation of the operating lever is released, and the operating lever is reset under the action of the traction spring. At the same time, the swing arm is inserted between the first limiting flange and the mounting frame, so that the inclined bolt is partially immersed in the lock body, and the reversing action of the lock bolt can no longer be performed. This structure is simple, easy to operate, and the overall layout is reasonable, with good use effect.

[0020] As a further configuration of the present invention, the mounting frame includes a first sub-frame body and a second sub-frame body, the connecting rod passes through the first sub-frame body and the second sub-frame body, the traction spring is in contact between the first sub-frame body and the inclined tongue, and the swing arm is arranged between the second sub-frame body and the first limiting flange; the connecting rod is divided into a main rod and a sub-rod, one end of the main rod passes through the first sub-frame body and the second sub-frame body and is rotatably connected to the inclined tongue, and the other end is threadedly engaged with the sub-rod, and the first limiting flange is arranged on the sub-rod.

[0021] The beneficial effect of such a setting is that it has a significant effect on improving the stability of the connecting rod position, the overall installation convenience and the connection reliability. The connecting rod passes through the two sub-frames in sequence, forming a stable support system in structure, effectively limiting the shaking and displacement of the connecting rod, and greatly enhancing its position stability. At the same time, the traction spring is in contact between the first sub-frame and the oblique tongue, and the swing arm is arranged between the second sub-frame and the first limiting flange. This layout not only optimizes the force distribution of each component, but also enables each component to quickly find the correct position and cooperate closely during the installation process, greatly simplifying the installation steps, ensuring the firmness and reliability of the connection, and laying a solid foundation for the stable operation of the entire device. The connecting rod is further designed to be a main rod and a sub-rod. The main rod can first pass through the first sub-frame and the second sub-frame to complete the rotational connection with the oblique tongue, and then the overall assembly is achieved through the threaded cooperation between the sub-rod and the main rod. In addition, the first limiting flange is arranged on the branch rod, which can play a positioning and limiting role during the installation process, effectively avoiding position deviation or excessive displacement during the installation of the connecting rod, making the entire installation process simpler and more efficient. Even in the relatively narrow internal space of the lock body, the connecting rod can be easily and accurately installed, ensuring assembly efficiency and subsequent use.

[0022] As a further configuration of the present invention, a push groove is arranged on the lock body corresponding to the position of the drive seat, the push groove is arranged obliquely, the drive seat and the push groove are slidably matched, and pressure plates are respectively arranged on both sides of the push groove in the lock body, and a guide gap is formed between the pressure plate and the bottom surface of the push groove.

[0023] The beneficial effect of such a setting is that the push groove is set in an inclined shape. When the drive seat slides in the push groove, the inclined angle can provide an ideal motion trajectory for the gear on the drive seat, making it smoother and more efficient when it needs to exit the meshing operation. Compared with the traditional horizontal or vertical guide structure, the inclined push groove can use this angle to cleverly resolve the jamming or interference problems that the gear may encounter when it is disengaged, thereby significantly improving the operating reliability and operational convenience of the entire lock body mechanism, while making the structural space layout more reasonable. At the same time, the lock body is arranged with a pressure plate on both sides of the push groove, and the guide gap formed between the pressure plate and the bottom surface of the push groove further improves the precise guiding function of the drive seat sliding. The existence of this gap can not only provide the right degree of freedom for the movement of the drive seat, so that it can flexibly respond to the external driving force, but also effectively limit the displacement of the drive seat in the direction of escaping from the push groove through the constraints imposed by the pressure plate from both sides, ensuring that it always slides along the push groove stably, greatly reducing the risk of the drive seat escaping from the push groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the arrangement structure of the lock body according to an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a driving seat in an embodiment of the present invention;

[0026] Figure 3 It is a cross-sectional structural diagram of the position of the gear set in an embodiment of the present invention;

[0027] Figure 4 is a schematic structural diagram of a first driven gear in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the lifting gear in an embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of the combination of the lifting gear and the first driven gear in an embodiment of the present invention;

[0030] Figure 7 is a schematic structural diagram of a second driven gear in an embodiment of the present invention;

[0031] Figure 8 It is a schematic cross-sectional structure diagram of the position of the handle seat in an embodiment of the present invention;

[0032] Fig. 9 Schematic diagram of the transmission structure of the main lock tongue in the embodiment of the present invention

[0033] Fig.10 It is a schematic diagram of the oblique tongue reversing structure in an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The present invention provides an embodiment of a door lock, such as Figures 1 to 10As shown, it includes a lock body 1, on which there are a main lock tongue 2, a driving gear 23, a driving seat 4 and a handle seat 5 for manual unlocking, the main lock tongue 2 is connected to the driving gear 23 by transmission, the handle seat 5 is sleeved with a transmission gear 51, the transmission gear 51 is meshed with the driving gear 23, the driving seat 4 is slidably matched with the lock body 1, and two driving units are arranged on the driving seat 4, each driving unit includes a driving motor 41 and a gear set 43 matched between the driving motor 41 and the driving gear 23, the gear set 43 includes a reduction gear 431, a first driven gear 432 and a second driven gear 433. 33, a lifting gear 434, a damper 435 and a second driven gear 432, the reduction gear 431 is transmission-connected to the output end of the driving motor 41, the first driven gear 433, the lifting gear 434 and the second driven gear 432 are coaxially arranged and rotatably connected in the driving seat 4, the second driven gear 432 is meshed with the driving gear 23, the first driven gear 433 is meshed with the reduction gear 431, the lifting gear 434 is arranged below the first driven gear 433, and a plurality of lifting grooves 4334 are circumferentially arranged on the first driven gear 433, The lifting gear 434 is provided with a lifting boss 4341 at the position corresponding to the lifting groove 4334 on the end surface thereof. The lifting boss 4341 has a trapezoidal cross section with a small upper portion and a large lower portion. The lifting boss 4341 is inserted into the lifting groove 4334. The first driven gear 433 is provided with a first mating tooth 4331 at one end thereof facing the second driven gear 432. The second driven gear 432 is provided with a second mating tooth 4321 at one end thereof facing the first driven gear 433. The first mating tooth 4331 meshes with the second mating tooth 4321 to form a first driven gear 433 and a second driven gear 432. The transmission connection of the wheel 432, there is also a return spring 436 between the first driven gear 433 and the second driven gear 432 for loosening the first matching tooth 4331 and the second matching tooth 4321, the damper 435 is arranged on one side of the lifting gear 434 and meshing with the lifting gear 434; a clamping spring 11 is arranged between the lock body 1 and the driving seat 4 for keeping the second driven gear 432 meshing with the driving gear 23; the outer peripheral wall of the handle seat 5 is provided with a resistance flange 52 for resisting the sliding of the driving seat 4 to make the gear group 43 disengage from the driving gear 23.The beneficial effect of such a setting is: in such a setting, multiple groups of drive units are set, and two groups of drive units operate separately, and can perform unlocking actions separately, thereby ensuring the stability of the structure. Even if one group of drive units has problems, the other group of drive units can still be used for emergency. Of course, in order to ensure the service life of the drive unit, the program can be set to use the drive unit in turn every week or at intervals to ensure that the drive unit does not fail due to aging. This degree of setting belongs to the prior art and has good reliability. In each drive unit, when the drive motor 41 is running, the output end of the drive motor 41 drives the reduction gear 431 to rotate, and the reduction gear 431 drives the first driven gear 433 to rotate. Since the first driven gear 433 and the lifting gear 434 cooperate through the lifting groove 4334 and the lifting boss 4341, the first driven gear 433 and the lifting gear 434 rotate synchronously, but the damper 435 is arranged on one side of the lifting gear 434 and meshes with it, so that the lifting gear 434 and the first driven gear 433 have a speed difference , so that the first driven gear 433 slides along the side wall inclined surface of the lifting boss 4341 in the height direction and compresses the return spring 436. Of course, the resistance force of the return spring 436 here is less than the component force driving the first driven gear 433 to move in the height direction, so that the first matching tooth 4331 on the first driven gear 433 is meshed with the second matching tooth 4321 of the second driven gear 432, so as to realize the transmission cooperation between the first driven gear 433 and the second driven gear 432, and at the same time drive the main lock tongue 2 to slide. When the driving motor 41 stops running, due to the loss of power source, the first driven gear 433 stops rotating, so that under the action of the return spring 436, the first matching tooth 4331 and the second matching tooth 4321 are loosened, so that the second driven gear 432 can idle, completing the overall clutch action. The clutch operation of this structure has a quick response, a simple and reliable structure, and a very reasonable layout, which effectively improves the reliability of the overall structure, ensures that the lock can be unlocked smoothly during emergency unlocking, ensures safe use, and has a good use effect. Furthermore, when the handle base 5 is working, the contact flange 52 can contact the drive base 4, causing the drive base 4 to slide, thereby causing the gear set 43 on the drive base 4 to disengage from the drive gear 23, thereby releasing the motor from driving the drive gear 23, ensuring that manual unlocking can complete the unlocking action, avoiding being stuck by the motor structure, and improving the safety of the structure.

[0035] As a further configuration of this embodiment, a connecting sleeve 4332 is provided on the end surface of the first driven gear 433 facing the second driven gear wheel, a tooth groove is provided at the end of the connecting sleeve 4332, the first mating tooth 4331 is provided in the tooth groove, and the return spring 436 is sleeved outside the connecting sleeve 4332. The beneficial effect of such a configuration is that the tooth groove at the end of the connecting sleeve 4332 provides an effective protective barrier for the first mating tooth 4331. When the gear system is running, the first mating tooth 4331 is in the tooth groove, avoiding its direct exposure to the outside, thereby greatly reducing the risk of the first mating tooth 4331 being damaged due to external impact, collision or impurity intrusion, ensuring the integrity of its structure and the stability of its meshing performance, and effectively guaranteeing the reliability and accuracy of the entire transmission process. At the same time, the tooth groove also has a guiding function for the second mating tooth 4321. In the dynamic process of gear interaction, the specific shape and size of the tooth groove can accurately guide the second mating tooth 4321 into the correct meshing position, so that it can achieve close and efficient fit with the first mating tooth 4331. This guiding effect not only reduces the friction and jamming during gear meshing, improves the transmission efficiency, but also reduces the noise and vibration caused by poor meshing, creating a more stable and quiet operating environment for the entire mechanical device. In addition, the return spring 436 mounted outside the connecting sleeve 4332 can buffer the impact force during the gear meshing process to a certain extent, further enhancing the stability and durability of the entire structure, enabling it to adapt to complex and changeable working conditions and ensure long-term stable operation of the equipment.

[0036] As a further configuration of this embodiment, a matching platform 4333 is provided on the end face of the first driven gear 433, the lifting groove 4334 is provided on the matching platform 4333, a protruding block 4342 is provided at the end of the lifting boss 4341, a contact platform is provided on the contact surface between the lifting gear 434 and the first driven gear 433, the diameter of the contact platform is larger than the diameter of the lifting gear 434, and the lifting boss 4341 is arranged on the contact platform at intervals. The beneficial effect of such a configuration is that, by providing the matching platform 4333 on the end face of the first driven gear 433 and arranging the lifting groove 4334 thereon, this design effectively improves the structural strength of the first driven gear 433 at the position of the lifting groove 4334. The existence of the matching platform 4333 provides additional support and reinforcement for the surrounding area of ​​the lifting groove 4334, so that this part can better resist deformation and fatigue damage when it is subjected to the frequent lifting force of the lifting gear 434 and the torque transmission. This not only ensures the structural integrity of the first driven gear 433 itself, but also ensures the stability and reliability of the entire transmission system during long-term operation, reduces the possibility of failures caused by insufficient local structural strength, and thus reduces the maintenance cost and downtime of the equipment. The protruding block 4342 set at the end of the lifting boss 4341 further optimizes the stability of the transmission structure. When lifted to the maximum position, the protruding block 4342 and the lifting slot 4334 are closely matched, which can accurately limit the displacement of the first driven gear 433 and prevent it from unnecessary shaking or deviation. This close combination greatly enhances the combination stability of the lifting gear 434 and the first driven gear 433 in the lifting slot 4334 position, ensuring the accuracy and efficiency of power transmission. Even when running at high speed or bearing a large load, the positions of the two can be kept stable, ensuring the stable operation of the structure. Furthermore, since the diameter of the contact table is larger than the diameter of the lifting gear 434, this greatly increases the contact area between the two. First, a larger contact area can make the force distribution more uniform. When the lifting gear 434 operates and interacts with the first driven gear 433, it will not cause excessive wear due to excessive local force, thereby significantly extending the service life of the gear. Secondly, during the transmission process, a larger contact area can effectively reduce the vibration and noise caused by poor contact between the tooth surfaces, ensure the smooth operation of the entire transmission system, reduce noise interference during equipment operation, and improve the comfort of equipment use and the quietness of the working environment. This structure is simple and easy to produce and process. It provides a solid and reliable foundation for achieving precise mechanical movements, enhances the ability of the equipment to work continuously and stably under complex working conditions, reduces the occurrence of failures due to unstable transmission, and improves the reliability and durability of the equipment.

[0037] As a further configuration of the present embodiment, a linkage pin 55 and a linkage hole 54 are provided between the handle seat 5 and the transmission gear 51 for coupling the handle seat 5 and the transmission gear 51, and an operating button for driving the linkage pin 55 to engage with the linkage hole 54 is provided on the handle seat 5. The beneficial effect of such a configuration is that the linkage of the operating button and the linkage pin 55 on the handle seat 5 belongs to the prior art, and the specific structure will not be described in detail here. When the operating button is not operated, the rotation of the handle seat 5 is idle. Although the abutment flange 52 will push the drive seat 4, it will not cause the main lock tongue 2 to retract. Further, when the operating button is operated, the handle seat 5 and the transmission gear 51 can be driven by the handle seat 5 as a whole through the linkage pin 55 and the linkage hole 54 structure. During the rotation of the handle seat 5, the abutment flange 52 on the handle seat 5 abuts against the drive seat 4 during the rotation, causing the drive seat 4 to slide, thereby causing the gear on the drive seat 4 to The seat disengages from the meshing of the drive gear 23, and the motor drives the drive gear 23. At the same time, in the subsequent rotation process, as the transmission gear 51 meshes with the drive gear 23, the manual unlocking action is completed. As a preferred embodiment, in the gear structure here, the drive gear 23 is set as a double-layer gear, one layer cooperates with the gear set 43, and the other layer cooperates with the transmission gear 51. At the same time, the transmission gear 51 is set as a half gear to ensure that when the structure is in use, it can first idle and push away from the drive seat 4, and then open the door through the meshing action. This structure is simple and reliable in coordination, and is convenient for realizing the combination and separation of the motor structure and the lock tongue transmission structure, and has a good use effect.

[0038] As a further configuration of this embodiment, the drive seat 4 extends a contact platform 42 toward the contact flange 52, and the lock body 1 is rotatably provided with a limiter 8 at one side of the position of the contact platform 42, and the limiter 8 includes a contact arm 81 extending toward the contact flange 52 and a lock 82 for buckling on the contact platform 42. The beneficial effect of such a configuration is that the contact platform 42 extending from the drive seat 4 toward the contact flange 52 facilitates the contact of the contact flange 52, so that when the handle seat 5 rotates, the lock 82 can be disengaged from the limit, and the position of the drive seat 4 is ensured to be stable through the lock 82. The lock 82 is tightly buckled on the contact platform 42, so that it is also firmly fixed in the vertical direction. It effectively resists various interference forces from the outside, whether it is the impact force caused by the shaking of the door or the accidental collision that may occur in daily use, it can ensure that the drive seat 4 is always maintained in a precise working position. This not only improves the overall stability of the lock body 1, but also provides a solid guarantee for the reliable operation of the lock, further enhancing its safety and durability, thereby bringing users a better quality and more stable use experience.

[0039] As a further configuration of this embodiment, a driving plate 21 is connected to the main lock tongue 2, a driving groove 22 is provided on the driving plate 21, a driving flange 231 is provided on the driving gear 23, and the driving flange 231 is fitted in the driving groove 22. The driving groove 22 includes a straight portion 221, an arc-shaped portion 223, and a transition portion 222 for connecting the straight portion 221 and the arc-shaped portion 223 to form a closed figure, and a positioning groove is provided in the middle position of the straight portion 221. The beneficial effect of such a configuration is that, through such a driving groove 22 structure, when the driving flange 231 moves with the operation of the driving gear 23, the driving flange 231 first moves from the straight portion 221 to the arc portion 223, and at this time there is a short idling process, and at the same time, the main lock tongue 2 starts to be dragged to retract at the beginning of the arc portion 223. When the main lock tongue 2 is fully retracted, the driving flange 231 continues to slide along the arc portion 223. At this time, the driving gear 23 is in an idling state. In this state, the inclined tongue 6 can be driven to retract, so that the inclined tongue 6 and the main lock tongue 2 are driven to retract separately, which is beneficial to ensure the structural stability of the inclined tongue 6, improve the stability of the structure in use, and have a good use effect.

[0040] As a further configuration of this embodiment, the lock body 1 is telescopically provided with an inclined bolt 6 and a connecting rod 61, and the lock body 1 is also provided with a mounting frame, the connecting rod 61 is slidably matched with the mounting frame, and a resisting spring 62 for keeping the inclined bolt 6 outside the lock body 1 is in contact with the mounting frame, the resisting spring 62 is sleeved on the connecting rod 61, the inclined bolt 6 is rotatably connected to the connecting rod 61, the connecting rod 61 is provided with a transmission flange 63, and the transmission gear 51 is also provided with a transmission protrusion 53, and the transmission protrusion 53 is in contact with the transmission flange 63 to drive the inclined bolt 6 to sink into the lock body 1. The beneficial effect of such configuration is that the inclined bolt 6 and the connecting rod 61 connected thereto cooperate with the mounting frame, and the resisting spring 62 is sleeved on the connecting rod 61 and in contact between the inclined bolt 6 and the mounting frame, so as to cleverly keep the inclined bolt 6 outside the lock body 1, and this elastic support structure not only ensures the stability of the initial state of the inclined bolt 6, but also provides a reset power for its subsequent actions. The rotational connection between the inclined tongue 6 and the connecting rod 61 makes its movement mode more flexible and changeable, and can better adapt to the working requirements of the lock body 1. The transmission flange 63 on the connecting rod 61 and the transmission protrusion 53 on the transmission gear 51 conflict with each other. This design realizes the contraction action of the inclined tongue 6. When the transmission gear 51 is in the idle position, the transmission protrusion 53 acts on the transmission flange 63 to accurately drive the inclined tongue 6 into the lock body 1. The whole process has a simple and clear structure, without the need for complex additional components and cumbersome transmission links, which greatly reduces the production cost and the probability of failure, while ensuring the efficiency and reliability of the action. On the premise of meeting the basic functions of the lock body 1, the internal structure and working performance of the lock body 1 are optimized, providing users with a more convenient and stable use experience.

[0041] As a further configuration of the present embodiment, the connecting rod 61 is provided with a first limiting flange 613 for limiting the connecting rod 61 from escaping from the mounting frame. The lock body 1 is also rotatably provided with an operating rod 7, which is arranged on one side of the connecting rod 61. The operating rod 7 is cooperated with a swing arm 71 for being clamped between the first limiting flange 613 and the mounting frame to allow the inclined tongue 6 to be partially inserted into the lock body 1. A traction spring 64 for resetting the operating rod 7 to keep the swing arm 71 between the first limiting flange 613 and the mounting frame is also connected between the lock body 1 and the swing arm 71. The beneficial effect of such a configuration is that the base of the inclined bolt 6 is a square bottom, and the lock hole of the lock body 1 is also a square hole. When the square bottom is in the lock hole, it has the effect of limiting the rotation of the inclined bolt 6. When the inclined bolt 6 needs to be reversed, the operating lever 7 is rotated to make the swing arm 71 on the operating lever 7 disengage from the position between the first limiting flange 613 and the mounting frame, so that a gap is generated between the first limiting flange 613 and the mounting frame, so that under the action of the resistance spring 62, the inclined bolt 6 is pushed out a short distance, and at this time, the inclined bolt 6 structure is completely separated from the door body. That is, the base of the inclined bolt 6 is no longer restricted by the lock hole, so that the user can operate the inclined bolt 6 to rotate and complete the reversing action of the inclined bolt 6. This operation is simple and can be completed by ordinary people, with a good user experience. After the reversing is completed, the operation of the operating rod 7 is released, and the operating rod 7 is reset under the action of the traction spring 64. At the same time, the swing arm 71 is inserted between the first limiting flange 613 and the mounting frame, so that the inclined bolt 6 is partially immersed in the lock body 1, and the reversing action of the lock bolt can no longer be performed. This structure is simple, easy to operate, and the overall layout is reasonable, with a good use effect.

[0042] As a further configuration of this embodiment, the mounting frame includes a first sub-frame body 14 and a second sub-frame body 15, the connecting rod 61 passes through the first sub-frame body 14 and the second sub-frame body 15, the traction spring 64 abuts between the first sub-frame body 14 and the oblique tongue 6, and the swing arm 71 is arranged between the second sub-frame body 15 and the first limiting flange 613; the connecting rod 61 is divided into a main rod 611 and a sub-rod 612, one end of the main rod 611 passes through the first sub-frame body 14 and the second sub-frame body 15 and is rotatably connected to the oblique tongue 6, and the other end is threadedly engaged with the sub-rod 612, and the first limiting flange 613 is arranged on the sub-rod 612. The beneficial effect of such a configuration is that it has a significant effect on improving the stability of the position of the connecting rod 61, the overall installation convenience and the connection reliability. The connecting rod 61 passes through the two sub-frames in sequence, forming a stable support system in structure, effectively limiting the shaking and displacement of the connecting rod 61, and greatly enhancing its position stability. At the same time, the traction spring 64 is in contact between the first sub-frame body 14 and the oblique tongue 6, and the swing arm 71 is arranged between the second sub-frame body 15 and the first limiting flange 613. This layout not only optimizes the force distribution of each component, but also enables each component to quickly find the correct position and fit closely during the installation process, greatly simplifying the installation steps, ensuring the firmness and reliability of the connection, and laying a solid foundation for the stable operation of the entire device. The connecting rod 61 is further designed to be a main rod 611 and a branch rod 612. The main rod 611 can first pass through the first sub-frame body 14 and the second sub-frame body 15 to complete the rotation connection with the oblique tongue 6, and then the overall assembly is achieved through the threaded cooperation of the branch rod 612 and the main rod 611. In addition, the first limiting flange 613 is arranged on the branch rod 612, which can play a positioning and limiting role during the installation process, effectively avoiding position deviation or excessive displacement of the connecting rod 61 during installation, making the entire installation process simpler and more efficient. Even in a relatively narrow internal space of the lock body 1, the connecting rod 61 can be easily and accurately installed, ensuring assembly efficiency and subsequent use.

[0043] As a further configuration of this embodiment, a push groove 12 is provided on the lock body 1 at a position corresponding to the drive seat 4, the push groove 12 is tilted, the drive seat 4 and the push groove 12 are slidably matched, and a pressure plate 13 is provided on both sides of the push groove 12 in the lock body 1, and a guide gap is formed between the pressure plate 13 and the bottom surface of the push groove 12. The beneficial effect of such a configuration is that the push groove 12 is set in an inclined shape, and when the drive seat 4 slides in the push groove 12, the inclined angle can provide an ideal motion trajectory for the gear on the drive seat 4, making it smoother and more efficient when it needs to exit the meshing operation. Compared with the traditional horizontal or vertical guide structure, the inclined push groove 12 can use this angle to cleverly resolve the jamming or interference problems that may be encountered when the gear is disengaged, thereby significantly improving the operating reliability and operational convenience of the entire lock body 1 mechanism, while making the structural space layout more reasonable. At the same time, the lock body 1 is provided with a pressure plate 13 on both sides of the push groove 12, and the guide gap formed between the pressure plate 13 and the bottom surface of the push groove 12 further improves the precise guide function for the sliding of the drive seat 4. The existence of this gap can not only provide the appropriate degree of freedom for the movement of the drive seat 4, so that it can flexibly respond to the external driving force, but also effectively limit the displacement of the drive seat 4 in the direction of escaping from the push groove 12 through the constraints imposed by the pressure plate 13 from both sides, ensuring that it always slides stably along the push groove 12, greatly reducing the risk of the drive seat 4 escaping from the push groove 12.

[0044] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A door lock, comprising a lock body, wherein the lock body has a main lock tongue, a driving gear, a driving seat and a handle seat for manual unlocking, the main lock tongue is connected to the driving gear by transmission, the handle seat is sleeved with a transmission gear, and the transmission gear is meshed with the driving gear, characterized in that: The drive seat is slidably matched with the lock body, and at least two drive units are arranged on the drive seat, each drive unit includes a drive motor and a gear set matched between the drive motor and the drive gear, the gear set includes a reduction gear, a first driven gear, a lifting gear, a damper and a second driven gear, the reduction gear is transmission-connected with 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 drive seat, the second driven gear is meshed with the drive gear, the first driven gear is meshed with the reduction gear, the lifting gear is arranged below the first driven gear, a plurality of lifting grooves are circumferentially arranged on the first driven gear, and a lifting boss is arranged on the end surface of the lifting gear corresponding to the lifting slot, and the cross-section of the lifting boss is The gear is arranged in a trapezoidal shape with a small top and a large bottom. The lifting boss is inserted in the lifting groove. The first driven gear is provided with a first mating tooth on one end facing the second driven gear. The second driven gear is provided with a second mating tooth on one end facing the first driven gear. The first mating tooth is meshed with the second mating tooth to form a transmission connection between the first driven gear and the second driven gear. There is also a return spring between the first driven gear and the second driven gear for loosening the first mating tooth and the second mating tooth. The damper is arranged on one side of the lifting gear and meshed with the lifting gear. A compression spring is arranged between the lock body and the drive seat for keeping the second driven gear meshed with the drive gear. A resistance flange is arranged on the outer peripheral wall of the handle seat for resisting the sliding of the drive seat to disengage the gear set from the drive gear.

2. The door lock according to claim 1, characterized in that: The end surface of the first driven gear facing the second driven gear is provided with a connecting sleeve, the end of the connecting sleeve is provided with a tooth groove, the first matching tooth is provided in the tooth groove, and the return spring sleeve is provided outside the connecting sleeve.

3. The door lock according to claim 1, characterized in that: A matching platform is arranged on the end face of the first driven gear, the lifting groove is arranged on the matching platform, a protruding block is arranged on the end of the lifting boss, a contact platform is arranged on the contact surface between the lifting gear and the first driven gear, the diameter of the contact platform is larger than the diameter of the lifting gear, and the lifting bosses are arranged on the contact platform at intervals.

4. The door lock according to claim 1, characterized in that: A linkage pin and a linkage hole are arranged between the handle seat and the transmission gear for linking the handle seat and the transmission gear, and an operating button is arranged on the handle seat for driving the linkage pin to engage with the linkage hole.

5. The door lock according to claim 4, characterized in that: The driving seat is provided with a contact platform extending toward the contact flange, and the lock body is rotatably provided with a limit piece at one side of the contact platform position, and the limit piece comprises a contact arm extending toward the contact flange and a lock buckle for buckling on the contact platform.

6. The door lock according to claim 5, characterized in that: The main lock tongue is connected to a drive plate, a drive groove is formed on the drive plate, a drive flange is provided on the drive gear, the drive flange fits in the drive groove, the drive groove includes a straight portion, an arc portion and a transition portion for connecting the straight portion and the arc portion to form a closed figure, and a positioning groove is provided in the middle of the straight portion.

7. The door lock according to claim 6, characterized in that: A tilted tongue and a connecting rod are telescopically arranged in the lock body, and a mounting frame is also arranged in the lock body. The connecting rod and the mounting frame are slidably matched, and a resistance spring for keeping the tilted tongue outside the lock body is in contact with each other between the tilted tongue and the mounting frame. The resistance spring is sleeved on the connecting rod, and the tilted tongue is rotatably connected to the connecting rod. A transmission flange is arranged on the connecting rod, and a transmission protrusion is also arranged on the transmission gear. The transmission protrusion is in contact with the transmission flange to drive the tilted tongue to sink into the lock body.

8. The door lock according to claim 7, characterized in that: The connecting rod is provided with a first limiting flange for limiting the connecting rod from escaping from the mounting frame. The lock body is also rotatably provided with an operating rod, which is arranged on one side of the connecting rod. The operating rod is matched with a swing arm for being clamped between the first limiting flange and the mounting frame to allow the inclined tongue to be partially inserted into the lock body. A traction spring for resetting the operating rod to keep the swing arm between the first limiting flange and the mounting frame is also connected between the lock body and the swing arm.

9. The door lock according to claim 8, characterized in that: The mounting frame includes a first sub-frame body and a second sub-frame body, the connecting rod passes through the first sub-frame body and the second sub-frame body, the traction spring is in contact between the first sub-frame body and the inclined tongue, and the swing arm is arranged between the second sub-frame body and the first limiting flange; the connecting rod is divided into a main rod and a sub-rod, one end of the main rod passes through the first sub-frame body and the second sub-frame body and is rotatably connected to the inclined tongue, and the other end is threadedly engaged with the sub-rod, and the first limiting flange is arranged on the sub-rod.

10. The door lock according to claim 1, characterized in that: A push groove is arranged on the lock body corresponding to the position of the driving seat, the push groove is arranged obliquely, the driving seat and the push groove are slidably matched, and pressure plates are arranged on both sides of the push groove in the lock body, and a guide gap is formed between the pressure plate and the bottom surface of the push groove.

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