A gear box structure

By integrating power transmission, indirect transmission, and magnetic components inside the gearbox, the complexity caused by external transmission structures is solved, enabling miniaturized lock design and smooth drive operation.

CN224364323UActive Publication Date: 2026-06-16GUANGDONG YONGDING TECH CO LTD
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Patent Information

Application Number
CN202521669494.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2026-06-16
Estimated Expiration
2035-08-06

AI Technical Summary

Technical Problem

The external gearbox transmission structure of existing locks results in complex structures, large space occupation, and low integration, which affects the miniaturization design and ease of use of locks.

Method used

Design an integrated gearbox structure that integrates key components such as power transmission components, indirect transmission components, power transmission components, and magnetic chucks inside the gearbox. The internal connection and disconnection of the transmission end are achieved through the cooperation of the push component on the indirect transmission component with the transmission mating component and the magnetic chuck.

Benefits of technology

The lock body structure has been simplified, the integration of the gearbox has been improved, the smoothness of the drive and locking operations has been ensured, and the user experience has been enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gear box structure, including fixed element, drive element, gear module and power output module, gear module and drive element transmission connection power output module includes the power transmission spare of rotation setting on fixed element, indirect drive part, the power transmission spare of relative power transmission spare rotation setting, magnetic attraction spare and transmission cooperation spare, gear module and power transmission spare transmission connection, power transmission spare is provided with the installation cavity, and the peripheral wall of installation cavity is provided with the power cooperation groove intercommunication of installation cavity indirect drive part rotation setting in installation cavity and is connected with power transmission spare, and indirect drive part is provided with a plurality of pusher along the circumferential array, and is provided with the accommodating groove between two pushers, transmission cooperation spare swing setting in accommodating groove, and transmission cooperation spare and magnetic attraction spare magnetic attraction, when power transmission spare drives indirect drive part to rotate, pusher can push transmission cooperation spare to enter into power cooperation groove.
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Description

Technical Field

[0001] This utility model relates to the field of transmission gearbox technology, and in particular to a gearbox structure. Background Technology

[0002] In the technological development of the lock industry, the gearbox, as the core transmission component that enables precise operation of the bolt, directly affects the overall function and user experience of the lock. To meet the basic functional requirements of the lock, the driving force is usually effectively transmitted to the bolt through the meshing of gears inside the gearbox, so as to realize the extension and retraction of the bolt, thereby completing the locking and unlocking operations of the lock.

[0003] However, in practical applications, locks often need to have a user-operated deadbolt function, which places special demands on the gearbox's transmission design. Specifically, after the locking bolt is driven by a drive device (such as a motor), to prevent unnecessary transmission interference caused by the deadbolt's movement driving related components within the gearbox through the transmission link when the user manually turns the deadbolt, thus affecting the smoothness of the deadbolt operation or the safety of the drive device, the transmission end needs to be effectively disconnected from the relevant transmission parts of the deadbolt after the drive is completed.

[0004] Currently, existing locks employ a transmission structure that places the corresponding transmission mechanism outside the gearbox to achieve the disconnection function between the transmission end and the deadbolt knob. While this external design can meet the transmission disconnection requirement to some extent, it makes the overall lock body structure extremely complex. The large number of transmission components distributed outside the gearbox not only increases the internal space occupied by the lock body, limiting its miniaturization, but also makes the assembly relationships between components more cumbersome, increasing the difficulty and cost of manufacturing.

[0005] More importantly, because these transmission and engagement structures cannot be integrated into the gearbox, the integration level of the gearbox as a core transmission component is greatly reduced, making it difficult to form a compact, functionally integrated modular component. This not only hinders the optimization of the overall lock structure but also limits the convenience of installation, maintenance, and subsequent technological upgrades. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an integrated gearbox structure.

[0007] A gearbox structure designed for this purpose includes a stationary element, a drive element, a gear module, and a power output module;

[0008] The gear module is connected to the drive element in a transmission manner;

[0009] The power output module includes a power transmission component rotatably mounted on the fixed element, an indirect transmission component, a power transmission component rotatably mounted relative to the power transmission component, a magnetic attraction component, and a transmission mating component;

[0010] The gear module is connected to the power transmission component in a transmission connection.

[0011] The power transmission component is provided with a mounting cavity, and the peripheral wall of the mounting cavity is provided with a power mating groove that communicates with the mounting cavity.

[0012] The indirect transmission component is rotatably disposed in the mounting cavity and connected to the power transmission component. The indirect transmission component has multiple pushing components arranged in a circumferential array, and a receiving groove is provided between two pushing components.

[0013] The transmission mating component is movably disposed within the receiving groove, and the transmission mating component is magnetically attracted to the magnetic suction component.

[0014] When the power transmission component drives the indirect transmission component to rotate, the pusher component can push the transmission mating component into the power mating groove.

[0015] Preferably, the fixing element is provided with a mounting groove communicating with the mounting cavity, and the magnetic suction element is disposed in the mounting groove.

[0016] Preferably, the power transmission component is provided with a power transmission head.

[0017] Preferably, the gear module consists of several transmission gears, which mesh with each other and are respectively connected to the drive element and the power transmission component.

[0018] Preferably, the driving element is a motor.

[0019] Compared with the prior art, this utility model integrates the transmission disconnection function into the gearbox, bringing many beneficial effects.

[0020] From a structural integration perspective, this structure integrates key components such as power transmission components, indirect transmission components, power transmission components, magnetic chucks, and transmission mating components inside the gearbox. Utilizing the interaction between the pusher on the indirect transmission component and the transmission mating components and power mating grooves, as well as the magnetic attraction of the magnetic chucks, the connection and disconnection of the transmission end with related components can be completed inside the gearbox. This design effectively solves the problems caused by the external transmission mating structure in existing technologies, eliminating the need for complex transmission components outside the gearbox, significantly simplifying the overall structure of the lock body, improving the integration level of the gearbox, and contributing to the miniaturization of the lock body design.

[0021] In terms of functionality, when the drive element rotates the power transmission component and indirect transmission component via the gear module, the pusher pushes the transmission mating component into the power mating slot, achieving an effective connection between the power transmission component and the power transmission component, ensuring stable transmission of driving force. After the drive ends, under the magnetic action of the magnetic suction component, the transmission mating component can detach from the power mating slot and return to the receiving slot, disconnecting the power transmission component from the power transmission component and preventing transmission interference when the user rotates the deadbolt knob. This internally autonomous connection and disconnection process ensures smooth lock drive and deadbolt operation, enhancing the user experience. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is an exploded structural diagram of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of an indirect transmission component;

[0025] Figure 4 This is a three-dimensional structural diagram of a power transmission component;

[0026] Figure 5 A schematic diagram of the power output module in the connected transmission state;

[0027] Figure 6 This is a schematic diagram showing the power output module in a disassembled state. Detailed Implementation

[0028] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0030] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0031] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0032] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0034] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0035] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0036] See Figures 1-6A gearbox structure includes a fixed element 10, a drive element 20, a gear module 30, and a power output module 40; the gear module 30 is driveably connected to the drive element 20; the power output module 40 includes a power transmission component 310 rotatably mounted on the fixed element 10, an indirect transmission component 320, a power transmission component 330 rotatably mounted relative to the power transmission component 310, a magnetic suction component 340, and a transmission mating component 350; the gear module 30 is driveably connected to the power transmission component 310; the power transmission component 330 is provided with a mounting cavity 331, and the peripheral wall of the mounting cavity 331 is provided with a connection to the fixed element 10. The mounting cavity 331 is connected to the power mating groove 332; the indirect transmission component 320 is rotatably disposed in the mounting cavity 331 and connected to the power transmission component 310, the indirect transmission component 320 is arranged with multiple pushers 321 arranged in a circumferential array, and a receiving groove 322 is provided between two pushers 321; the transmission mating component 350 is movably disposed in the receiving groove 322, and the transmission mating component 350 is magnetically attracted to the magnetic suction component 340; when the power transmission component 310 drives the indirect transmission component 320 to rotate, the pushers 321 can push the transmission mating component 350 into the power mating groove 332.

[0037] The working principle of this gearbox structure is based on the orderly cooperation and power transmission between its components, as follows:

[0038] When the locking tongue needs to be driven, the drive element 20 outputs power, which is transmitted to the power transmission component 310 through the gear module 30, causing the power transmission component 310 to rotate. Since the indirect transmission component 320 is connected to the power transmission component 310, the rotation of the power transmission component 310 will drive the indirect transmission component 320 to rotate synchronously within the mounting cavity 331 of the power transmission component 330.

[0039] During the rotation of the indirect transmission member 320, the pushers 321 arranged in a circumferential array move accordingly. When the pushers 321 rotate to contact the transmission mating member 350 in the receiving groove 322, they generate a thrust on the transmission mating member 350. This thrust overcomes the magnetic attraction force of the magnetic attractor 340 on the transmission mating member 350, pushing the transmission mating member 350 away from the receiving groove 322 until the transmission mating member 350 enters the power mating groove 332 of the power transmission member 330. At this time, the transmission mating member 350 simultaneously engages with both the receiving groove 322 of the indirect transmission member 320 and the power mating groove 332 of the power transmission member 330, allowing the rotation of the indirect transmission member 320 to be transmitted to the power transmission member 330 through the transmission mating member 350, causing the power transmission member 330 to rotate synchronously, thereby outputting power to drive the locking tongue.

[0040] When the drive element 20 stops outputting power, and the power transmission component 310 and the indirect transmission component 320 stop rotating, the pushing force of the pusher 321 on the transmission mating component 350 disappears. At this time, the magnetic attraction force of the magnetic attractor 340 on the transmission mating component 350 becomes dominant, pulling the transmission mating component 350 back from the power mating groove 332 into the receiving groove 322 of the indirect transmission component 320, thus disengaging the transmission mating component 350 from the power mating groove 332. In this way, the power transmission path between the power transmission component 330 and the indirect transmission component 320 is broken. When the user rotates the anti-lock knob, the rotation of the power transmission component 330 will not be transmitted to the indirect transmission component 320 and the gear module 30, thus avoiding transmission interference.

[0041] See Figure 2 The fixing element 10 is provided with a mounting groove 100 communicating with the mounting cavity 331, and the magnetic suction member 340 is disposed within the mounting groove 100. This structural design allows the magnetic suction member 340 to be firmly disposed within the mounting groove 100, ensuring that it will not shift or fall off due to vibration, impact, or other factors during gearbox operation, thus guaranteeing the reliability of the magnetic suction member 340. Simultaneously, since the mounting groove 100 is connected to the mounting cavity 331, the magnetic suction member 340 can apply a stable magnetic attraction force to the transmission mating member 350 located in the receiving groove 322 within the mounting cavity 331 at a reasonable distance. This interconnected design ensures the effective transmission of magnetic force, enabling the magnetic suction member 340 to promptly pull the transmission mating member 350 back from the power mating groove 332 to the receiving groove 322 when the driving element 20 stops outputting power and the pushing force of the pushing member 321 on the transmission mating member 350 disappears, reliably disconnecting the power transmission path between the power transmission member 330 and the indirect transmission member 320.

[0042] See Figure 2 The power transmission component 330 is equipped with a power transmission head 360. The indirect transmission component 320, the power transmission component 330, and the power transmission head 360 are coaxially arranged. The power transmission head 360 serves as the core interface for power output. When the power transmission component 330 rotates under the drive of the indirect transmission component 320, the power transmission head 360 can effectively transmit this rotational power outward. By cooperating with external actuators in the lock that require power drive (such as the drive mechanism of the bolt), a bridge is built for the transmission of power from inside the gearbox to the external actuators, ensuring that power can be applied to the external components accurately and efficiently, thereby driving the bolt to complete key actions such as extension and retraction, ensuring that the lock can normally achieve its locking and unlocking functions.

[0043] In this invention, regarding the magnetic attraction between the magnetic member 340 and the transmission mating member 350, one of them can be made of a magnet, and the other can be made of a material that can be attracted by a magnet. Alternatively, both can be made of magnets.

[0044] Furthermore, the power transmission head 360 is a gear.

[0045] See Figure 1 The gear module 30 consists of several transmission gears, which mesh with each other and are respectively connected to the drive element 20 and the power transmission component 310.

[0046] In this invention, the driving element 20 is a motor.

[0047] In this utility model, the power transmission component 310 is a square shaft, a square shaft hole 323 is provided on the indirect transmission component 320, and a round shaft hole 333 is provided on the power transmission component 330. The power transmission component 310 passes through the square shaft hole 323 and the round shaft hole 333.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gearbox structure, characterized in that: It includes a fixed element (10), a drive element (20), a gear module (30), and a power output module (40); The gear module (30) is connected to the drive element (20) in a transmission connection; The power output module (40) includes a power transmission component (310) rotatably mounted on the fixed element (10), an indirect transmission component (320), a power transmission component (330) rotatably mounted relative to the power transmission component (310), a magnetic suction component (340), and a transmission mating component (350); The gear module (30) is connected to the power transmission component (310) in a transmission connection; The power transmission component (330) is provided with a mounting cavity (331), and the peripheral wall of the mounting cavity (331) is provided with a power mating groove (332) that communicates with the mounting cavity (331); The indirect transmission component (320) is rotatably disposed in the mounting cavity (331) and connected to the power transmission component (310). The indirect transmission component (320) is arranged with a plurality of pushers (321) in a circumferential array, and a receiving groove (322) is provided between two pushers (321). The transmission mating component (350) is movably disposed within the receiving groove (322), and the transmission mating component (350) is magnetically attracted to the magnetic suction component (340); When the power transmission component (310) drives the indirect transmission component (320) to rotate, the pusher (321) can push the transmission mating component (350) into the power mating groove (332).

2. The gearbox structure according to claim 1, characterized in that: The fixing element (10) is provided with a mounting groove (100) communicating with the mounting cavity (331), and the magnetic suction element (340) is disposed in the mounting groove (100).

3. The gearbox structure according to claim 1, characterized in that: The power transmission component (330) is provided with a power transmission head (360), and the indirect transmission component (320), the power transmission component (330) and the power transmission head (360) are coaxially arranged.

4. A gearbox structure according to claim 1, characterized in that: The gear module (30) consists of several transmission gears, which mesh with each other and are respectively connected to the drive element (20) and the power transmission component (310).

5. A gearbox structure according to claim 1, characterized in that: The driving element (20) is a motor.