Intelligent door lock clutch gear box

Abstract

The utility model provides an intelligent door lock clutch gear box, including a box (10) and setting in the box (10) a driving gear (20), a first gear group (30), a second gear group (40) and a driven gear (50), the first gear group (30) includes a third double coupling gear (33), the gear shaft (331) of third double coupling gear (33) is movably sleeved with a support (334), the support (334) is installed with a rotating shaft (335) away from the gear shaft (331) one end, the rotating shaft (335) is movably sleeved with a transmission gear (336) and is engaged with the pinion (332) of third double coupling gear, and the rotating shaft (335) between the support (334) and transmission gear (336) is sleeved with a elastic member (337). The utility model not only has the advantages of reasonable structure, lock action coherent, not prone to jam, but also has the advantages of long control module reaction time, not prone to misjudgment, large output torque, faster output speed, faster unlocking.

Description

Technical Field

[0001] This utility model relates to the field of door lock gearbox technology, and in particular to an intelligent door lock clutch gearbox. Background Technology

[0002] With the development of artificial intelligence and internet technology, smart furniture products are developing rapidly. Smart door lock products that combine fingerprint recognition, facial recognition, NFC and other technologies with door locks are gradually entering people's lives.

[0003] Smart locks issue commands after intelligent identification, and the lock drive unit automatically locks or unlocks upon receiving the corresponding command. The electronic lock gearbox is the main drive component of a smart lock, typically composed of a series of gear transmission mechanisms. Upon receiving the command, the motor in the electronic lock gearbox begins to rotate, realizing the unlocking action. Due to the reversibility and continuity of gear transmission, but in situations such as power supply failure, debugging, or manual locking / unlocking, the electronic lock gearbox also needs to be equipped with a corresponding clutch mechanism to enable manual unlocking.

[0004] Existing electronic lock gearbox clutch structures are complex, difficult to manufacture and assemble, and prone to discontinuous locking and unlocking actions, resulting in jamming. Furthermore, they suffer from problems such as insufficient clutch disengagement time, inadequate control module response time leading to misjudgments, and low output speed and torque within confined spaces, resulting in slow unlocking times.

[0005] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects of the prior art and provide an intelligent door lock clutch gearbox to solve the problems in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A smart door lock clutch gearbox includes a housing and a drive gear for receiving input power disposed in the housing, a first gear set meshing with the drive gear, a second gear set cooperating with the first gear set, and a driven gear meshing with the second gear set for driving an output shaft.

[0009] The first gear set includes a third double gear, the gear shaft of the third double gear is movably fitted with a bracket, a rotating shaft is installed at the end of the bracket away from the gear shaft, a transmission gear that meshes with the pinion of the third double gear is movably fitted on the rotating shaft, and an elastic element is sleeved on the rotating shaft between the bracket and the transmission gear;

[0010] The transmission gear has a first position and a second position that mesh with the second gear set under the action of the driving gear, and the transmission gear moves between the first position and the second position.

[0011] As a further embodiment of this utility model, the first gear set includes a plurality of meshing double gears.

[0012] As a further embodiment of this utility model, the plurality of meshing double gears include a first double gear meshing with the driving gear, a second double gear meshing with the first double gear, and a third double gear meshing with the second double gear.

[0013] As a further embodiment of this utility model, the second gear set includes a fourth double gear that meshes with the driven gear, wherein the pinion of the fourth double gear meshes with the transmission gear in the first position or the second position.

[0014] As a further embodiment of this utility model, the rotation angle of the transmission gear from the first position to the second position is 300 degrees.

[0015] As a further embodiment of this utility model, the drive gear, the first double gear, the second double gear, and the third double gear are made of plastic.

[0016] As a further embodiment of this utility model, the transmission gear, the fourth double gear, and the driven gear are made of metal.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Due to the above structural design, namely, setting a driving gear, a first gear set, a second gear set, and a driven gear inside the housing, and setting a transmission gear on the first gear set, the transmission gear has a first position and a second position that mesh with the second gear set under the action of the driving gear. The transmission gear moves between the first position and the second position. Not only is the structure reasonable, the opening and closing locking action is smooth and not prone to jamming, but the control module has a long response time, is not prone to misjudgment, and also has a large output torque, a faster output speed, and a faster unlocking speed. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Appendix Figure 2 This is a schematic diagram of the present invention after the casing has been removed;

[0021] Appendix Figure 3This is another schematic diagram of the present invention after the casing has been removed;

[0022] Appendix Figure 4 This is a side view of an embodiment of the present utility model.

[0023] The labels in the diagram are as follows:

[0024] 10-Box housing, 20-Drive gear, 30-First gear set, 40-Second gear set, 50-Driven gear, 60-Motor;

[0025] A - First position, B - Second position;

[0026] 31-First double gear, 32-Second double gear, 33-Third double gear;

[0027] 331-Gear shaft, 332-Pinus of the third double gear, 333-Main gear of the third double gear, 334-Bracket, 335-Rotating shaft, 336-Transmission gear, 337-Elastic element;

[0028] 41 - Fourth double gear;

[0029] 411 - The pinion of the fourth double gear. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings:

[0031] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0032] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Example:

[0035] like Figure 1-4 As shown, this application discloses an intelligent door lock clutch gearbox, which includes a housing 10 and a drive gear 20 for receiving input power, a first gear set 30 meshing with the drive gear 20, a second gear set 40 cooperating with the first gear set 30, and a driven gear 50 meshing with the second gear set 40 for driving the output shaft.

[0036] The first gear set 30 includes a third double gear 33. A bracket 334 is movably sleeved on the gear shaft 331 of the third double gear 33. A rotating shaft 335 is installed on the end of the bracket 334 away from the gear shaft 331. A transmission gear 336 that meshes with the pinion 332 of the third double gear is movably sleeved on the rotating shaft 335. An elastic member 337 is sleeved on the rotating shaft 335 between the bracket 334 and the transmission gear 336.

[0037] The transmission gear 336 has a first position A and a second position B that mesh with the second gear set 40 under the action of the driving gear 20. The transmission gear 336 moves between the first position A and the second position B. Through the above structural design, this application not only has a reasonable structure, smooth opening and closing action, and is not prone to jamming, but also has a long response time of the control module, is not prone to misjudgment, and has a large output torque, faster output speed, and faster unlocking.

[0038] In operation, the drive gear 20 is mounted on the output shaft of the motor 60. The motor 60 drives the drive gear 20 to rotate, which in turn drives the first double gear 31 to rotate. The first double gear 31 drives the second double gear 32 to rotate, and the second double gear 32 drives the third double gear 33 to rotate. The pinion 332 of the third double gear drives the transmission gear 336 to rotate. The pinion 332 of the third double gear and the transmission gear 336 are always engaged. However, when the application is not in operation, the transmission gear 336 is not engaged with the second gear set 40. When the motor 60 rotates forward, due to the third double gear... The pinion 332 of the gear meshes with the transmission gear 336, and the elastic element 337 provides friction between the transmission gear 336 and the bracket 334. Therefore, when the transmission gear 336 runs to the first position A, it remains engaged with the second gear set 40, achieving electric unlocking. When the motor 60 reverses, the transmission gear 336 runs to the second position B, maintaining engagement with the second gear set 40, achieving electric locking. Since the angle between the first position A and the second position B is large, exceeding the operating angle of existing clutch mechanisms, sufficient reaction time is provided for the control module. In this embodiment, the elastic element 337 is a spring.

[0039] When the power of this application is insufficient, it is necessary to use external force such as a key to drive the output shaft in reverse. At this time, when the transmission gear 336 is in the second position B, the transmission gear 336 is disengaged from the second gear set 40 by reverse drive. That is, only the driven gear 50 and the second gear set 40 need to be driven to complete the engagement and disengagement.

[0040] This application not only meets the requirements of smart door locks subjected to greater external forces, but also satisfies usage needs. Furthermore, while meeting the requirement of greater output torque, it also has a faster output speed, enabling faster unlocking.

[0041] Specifically, the first gear set 30 includes several meshing double gears, including a first double gear 31 meshing with the driving gear 20, a second double gear 32 meshing with the first double gear 31, and a third double gear 33 meshing with the second double gear 32. Through the above structural design, the several double gears can achieve a large total transmission ratio in a relatively small space.

[0042] Specifically, the second gear set 40 includes a fourth double gear 41 that meshes with the driven gear 50. The pinion 411 of the fourth double gear meshes with the transmission gear 336 in the first position A or the second position B, thereby realizing electric unlocking and electric locking.

[0043] Specifically, the rotation angle of the transmission gear 336 from the first position A to the second position B is 300 degrees, which greatly exceeds the operating angle of the clutch mechanism in the prior art, thereby providing sufficient response time for the control module.

[0044] As a preferred embodiment, the driving gear 20, the first double gear 31, the second double gear 32, and the third double gear 33 are made of plastic, while the transmission gear 336, the fourth double gear 41, and the driven gear 50 are made of metal. By using plastic gears and metal gears according to different strength requirements, not only are strength requirements met, but the quietness of this application is also guaranteed, resulting in a better user experience.

[0045] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, smooth operation, and strong practicality.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A smart door lock clutch gearbox, characterized in that: It includes a housing (10) and a drive gear (20) for receiving input power disposed in the housing (10), a first gear set (30) meshing with the drive gear (20), a second gear set (40) cooperating with the first gear set (30), and a driven gear (50) meshing with the second gear set (40) for driving the output shaft. The first gear set (30) includes a third double gear (33), the gear shaft (331) of the third double gear (33) is movably fitted with a bracket (334), a rotating shaft (335) is installed at the end of the bracket (334) away from the gear shaft (331), a transmission gear (336) that meshes with the pinion (332) of the third double gear is movably fitted on the rotating shaft (335), and an elastic element (337) is sleeved on the rotating shaft (335) between the bracket (334) and the transmission gear (336). The transmission gear (336) has a first position and a second position that mesh with the second gear set (40) under the action of the driving gear (20), and the transmission gear (336) moves between the first position and the second position.

2. The intelligent door lock clutch gearbox according to claim 1, characterized in that: The first gear set (30) includes several meshing double gears.

3. The intelligent door lock clutch gearbox according to claim 2, characterized in that: The plurality of meshing double gears include a first double gear (31) meshing with the drive gear (20), a second double gear (32) meshing with the first double gear (31), and a third double gear (33) meshing with the second double gear (32).

4. The intelligent door lock clutch gearbox according to claim 3, characterized in that: The second gear set (40) includes a fourth double gear (41) that meshes with the driven gear (50), and the pinion (411) of the fourth double gear meshes with the transmission gear (336) in the first position or the second position.

5. The intelligent door lock clutch gearbox according to claim 4, characterized in that: The rotation angle of the transmission gear (336) from the first position to the second position is 300 degrees.

6. The intelligent door lock clutch gearbox according to claim 5, characterized in that: The drive gear (20), the first double gear (31), the second double gear (32), and the third double gear (33) are made of plastic.

7. The intelligent door lock clutch gearbox according to claim 6, characterized in that: The transmission gear (336), the fourth double gear (41), and the driven gear (50) are made of metal.

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