Electronic door lock clutch structure

Abstract

This utility model relates to the field of electronic door lock technology, and in particular to an electronic door lock clutch structure, including a knob housing and a clutch mechanism. The knob housing is rotatably fitted onto a fixed base, and a cantilever extends from the inner wall of the knob housing, with a cantilever hole provided on the cantilever. A mounting bracket is provided inside the knob housing, and the mounting bracket is fixedly connected to the fixed base. The clutch mechanism is fixedly mounted on the mounting bracket and includes a clutch bracket and a geared motor, a planetary gear swing mechanism, a driven gear, and an output gearbox mounted on the clutch bracket. The geared motor and the output gearbox are mounted on one side of the clutch bracket, and the planetary gear swing mechanism and the driven gear are mounted on the other side of the clutch bracket. The geared motor drives the planetary gear swing mechanism, which swings and engages the driven gear, which drives the output gearbox. The output shaft of the output gearbox is connected to the cantilever hole, and the output shaft drives the knob housing to rotate through the cantilever.

Description

Technical Field

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

[0002] Electronic door locks are products that combine electronic technology, integrated circuit design, a large number of electronic components, and a variety of innovative identification technologies.

[0003] Electronic door locks generally consist of a front panel, a back panel, and a lock body. When installing an electronic door lock, holes need to be drilled in the door, and the lock body needs to be installed inside the door. The front and back panels are then installed on either side of the door. To achieve the locking and unlocking functions, an electronic door lock must have an internal clutch mechanism. Electronic door locks typically use a motor to drive the clutch mechanism, thereby enabling the locking and unlocking functions.

[0004] Currently, the motor structure and clutch mechanism of common electronic door locks are all located in the lock body. The clutch mechanism uses springs and pins for disengagement. These clutch mechanisms have many parts, are costly, and occupy a lot of space, resulting in a large lock body. This causes more damage to the door when installing the lock. In addition, the lock body structure is relatively complex, the clutch is unstable, the failure rate is relatively high, and maintenance is also relatively difficult.

[0005] Therefore, this utility model addresses the aforementioned technical problems by providing an electronic door lock clutch structure that utilizes the planetary gear principle to achieve clutch engagement and disengagement. The clutch structure is integrated within a knob, which engages with the lock body to open and close the door lock, thereby solving one or more of the aforementioned problems. Utility Model Content

[0006] To address the aforementioned problems in the existing technology, this utility model provides an electronic door lock clutch structure, comprising:

[0007] A knob housing, which is rotatably fitted onto a fixed base, has an inner wall extending out of a cantilever, and the end of the cantilever is provided with a cantilever hole;

[0008] The knob housing has an internal mounting bracket, which is fixedly connected to the fixed base, and a first mounting base is formed on the mounting bracket;

[0009] The clutch mechanism is fixedly mounted on the first mounting base. The clutch mechanism includes a clutch bracket and a geared motor, a planetary gear swing mechanism, a driven gear, and an output gearbox mounted on the clutch bracket. The geared motor and the output gearbox are mounted on one side of the clutch bracket, and the planetary gear swing mechanism and the driven gear are mounted on the other side of the clutch bracket.

[0010] The geared motor drives the planetary gear swing mechanism, which swings and engages the driven gear. The driven gear drives the output gearbox, and the output shaft of the output gearbox is connected to the cantilever hole. The output shaft drives the knob housing to rotate through the cantilever.

[0011] Optionally, in some technical solutions, the planetary gear oscillating mechanism includes a planet carrier and a sun gear, a first planet gear, and a second planet gear rotatably mounted on the planet carrier. The first planet gear and the second planet gear are located on opposite sides of the sun gear, and both the first planet gear and the second planet gear mesh with the sun gear. The sun gear is connected to the geared motor, and the sun gear drives the first planet gear and the second planet gear to rotate simultaneously.

[0012] The geared motor drives the sun gear in both forward and reverse directions, and the sun gear drives the planet carrier to swing left and right, so that the first planet gear and the second planet gear intermittently engage the driven gear.

[0013] Optionally, in some technical solutions, the clutch mechanism further includes an intermediate gear that meshes with the driven gear, and the first planetary gear and the second planetary gear intermittently engage the intermediate gear.

[0014] Optionally, in some technical solutions, the first mounting base is provided with a first limiting post and a second limiting post. When the planetary carrier swings to abut the first limiting post, the first planetary gear engages the intermediate gear. When the planetary carrier swings to abut the second limiting post, the second planetary gear engages the intermediate gear.

[0015] Optionally, in some technical solutions, the cantilever hole is a polygonal hole, and a connecting block is configured on the output shaft, the connecting block being inserted into the lower end of the cantilever hole for installation.

[0016] Optionally, in some technical solutions, a first bearing seat is provided on the fixed base, a first bearing is installed on the first bearing seat, the end of the cantilever is formed as a sleeve post, the sleeve post is adapted to be installed with the first bearing, and the sleeve post passes through the fixed base.

[0017] Optionally, in some technical solutions, a second bearing housing is formed on the first mounting base, a second bearing is mounted on the second bearing housing, and the input end of the output gearbox is sleeved with the driven gear and then inserted with the second bearing.

[0018] Optionally, in some technical solutions, the mounting bracket is formed as a receiving groove on the outside of the second bearing housing, and the output gearbox is received in the receiving groove.

[0019] Optionally, in some technical solutions, the mounting bracket forms a receiving cavity after being closed with the knob housing on the outside of the receiving groove, and the receiving cavity accommodates the clutch mechanism.

[0020] Optionally, in some technical solutions, the mounting bracket is provided with a blocking groove at the upper end of the receiving groove, the cantilever is located in the blocking groove, and the blocking groove restricts the rotation angle of the cantilever.

[0021] Optionally, in some technical solutions, the first mounting base is provided with a plurality of first positioning posts, and the clutch bracket is provided with a plurality of positioning countersunk holes. The first positioning posts are fitted into one end of the positioning countersunk holes, and the other end of the positioning countersunk holes is fastened to the first positioning posts by screws.

[0022] Optionally, in some technical solutions, the first mounting base is further provided with a first insert post and a second insert post, the lower part of the clutch bracket is provided with a second positioning post, the second positioning post is inserted into the first insert post, and the end of the intermediate gear is rotatably inserted into the second insert post.

[0023] Optionally, in some technical solutions, the mounting bracket is provided with a plurality of mounting holes, and screws pass through the fixing seat to securely connect to the mounting holes.

[0024] Optionally, in some technical solutions, a rear cover is provided at the rear end of the knob housing, and the rear cover covers the knob housing and closes the clutch mechanism.

[0025] The technical solution of this utility model has the following advantages or beneficial effects:

[0026] The electronic door lock clutch structure provided by this utility model includes a knob housing and a clutch mechanism. The knob housing is rotatably fitted onto a fixed base. An arm extends from the inner wall of the knob housing, and an arm hole is provided at the end of the arm. A mounting bracket is provided inside the knob housing and is fixedly connected to the fixed base. A first mounting seat is formed on the mounting bracket. The clutch mechanism is fixedly mounted on the first mounting seat. The clutch mechanism includes a clutch bracket and a geared motor, a planetary gear swing mechanism, a driven gear, and an output gearbox mounted on the clutch bracket. The geared motor and the output gearbox are mounted on one side of the clutch bracket, and the planetary gear swing mechanism and the driven gear are mounted on the other side of the clutch bracket. The geared motor drives the planetary gear swing mechanism, which swings and engages the driven gear. The driven gear drives the output gearbox, and the output shaft of the output gearbox is connected to the arm hole. The output shaft drives the knob housing to rotate through the arm. The clutch mechanism of the electronic door lock uses a planetary gear rotation mechanism to achieve clutch action while each gear completes its own transmission. The clutch mechanism is integrated into the knob housing, and the cantilever hole can engage the lock body and bolt. The door lock can then be opened and closed via the knob or a geared motor. The structure is simple, the cost is low, the gear transmission is highly reliable, and the failure rate is low. Furthermore, the integration of the clutch mechanism into the knob housing reduces the number of assembly parts in the lock body, resulting in a smaller lock body size and less damage to the door. Attached Figure Description

[0027] Embodiments of the present invention will be described more fully with reference to the accompanying drawings. However, the accompanying drawings are for illustration and explanation only and do not constitute a limitation on the scope of the present invention.

[0028] Figure 1 This is an exploded view of the clutch structure of the electronic door lock of this utility model;

[0029] Figure 2 This is a three-dimensional schematic diagram of the electronic door lock clutch structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the planetary gear swing mechanism of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the knob housing of this utility model;

[0032] Figure 5 This is a schematic diagram of the mounting bracket of this utility model;

[0033] Figure 6 This is a cross-sectional schematic diagram of the electronic door lock clutch structure of this utility model;

[0034] Figure 7 This is a partial structural schematic diagram of the electronic door lock clutch structure of this utility model;

[0035] Figure 8 This is a schematic diagram of the gear transmission for locking the electronic door lock clutch structure of this utility model;

[0036] Figure 9 This is a schematic diagram of the gear transmission for unlocking the electronic door lock clutch structure of this utility model.

[0037] Illustration:

[0038] 1. Knob housing; 2. Clutch mechanism; 3. Fixed base; 4. Cantilever; 5. Cantilever hole; 6. Mounting bracket; 7. First mounting base; 8. Clutch bracket; 9. Gear motor; 10. Planetary gear swing mechanism; 11. Driven gear; 12. Output gearbox; 13. Output shaft; 14. Planetary carrier; 15. Sun gear; 16. First planetary gear; 17. Second planetary gear; 18. Intermediate gear; 19. First limiting post; 20. Second limiting post; 21. First bearing housing; 22. First bearing; 23. Sleeve post; 24. Second bearing housing; 25. Second bearing; 26. Receiving groove; 27. Receiving cavity; 28. Blocking groove; 29. ​​First positioning post; 30. Positioning countersunk hole; 31. First insertion post; 32. Second insertion post; 33. Second positioning post; 34. Mounting hole; 35. Rear cover; 36. First position; 37. Second position; 38. Connecting block. Detailed Implementation

[0039] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0041] In the description of this utility model, 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 utility model pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] In the description of this utility model, 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 specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0043] like Figure 1-9 As shown, an embodiment of this utility model provides an electronic door lock clutch structure, including a knob housing 1 and a clutch mechanism 2. The knob housing 1 is rotatably fitted onto a fixed base 3, which is fixedly mounted on the inner panel of the door lock. A cantilever 4 extends from the inner wall of the knob housing 1, and a cantilever hole 5 is provided at the end of the cantilever 4. The cantilever 4 and the cantilever hole 5 are used to transmit torque. A mounting bracket 6 is provided inside the knob housing 1, and the mounting bracket 6 is fixedly connected to the fixed base 3. The mounting bracket 6 is used to mount the clutch mechanism 2. A first mounting seat 7 is formed on one side of the mounting bracket 6, and the clutch mechanism 2 is fastened to the first mounting seat 7. The clutch mechanism 2 is used to realize forward rotation locking, reverse rotation unlocking, and free rotation disengagement of the knob housing 1. The clutch mechanism 2 includes a clutch bracket 8 and a geared motor 9, a planetary gear swing mechanism 10, a driven gear 11, and an output gearbox 12 mounted on the clutch bracket 8. The geared motor 9 and the output gearbox 12 are mounted on one side of the clutch bracket 8, and the planetary gear swing mechanism 10 and the driven gear 11 are mounted on the other side of the clutch bracket 8. The geared motor 9 drives the planetary gear swing mechanism 10, which swings and engages the driven gear 11. The driven gear 11 drives the output gearbox 12. The output shaft 13 of the output gearbox 12 is connected to the cantilever hole 5, and the output shaft 13 drives the knob housing 1 to rotate through the cantilever 4. The clutch mechanism 2 of the electronic door lock clutch structure achieves the clutch action while each gear completes its own transmission through the planetary gear swing mechanism 10. The clutch mechanism 2 is integrated into the knob housing 1. The cantilever hole 5 can engage the lock body and lock tongue, and then the door lock can be opened and closed through the knob or the reduction motor 9. The structure is simple, the cost is low, the gear transmission has high reliability and low failure rate. Moreover, the clutch mechanism 2 is integrated into the knob housing 1, which reduces the assembly parts of the lock body, making the lock body smaller and causing less damage to the door.

[0044] Further, in this embodiment, the planetary gear oscillating mechanism 10 includes a planet carrier 14 and a sun gear 15, a first planetary gear 16, and a second planetary gear 17 rotatably mounted on the planet carrier 14. The first planetary gear 16 and the second planetary gear 17 are located on both sides of the sun gear 15, and both the first planetary gear 16 and the second planetary gear 17 mesh with the sun gear 15. The sun gear 15 is connected to a reduction motor 9, and the sun gear 15 drives the first planetary gear 16 and the second planetary gear 17 to rotate simultaneously. The reduction motor 9 drives the sun gear 15 in both forward and reverse directions, and the sun gear 15 causes the planet carrier 14 to oscillate left and right, so that the first planetary gear 16 and the second planetary gear 17 intermittently engage the driven gear 11. Specifically, the planet carrier 14 has a figure-eight structure, and the sun gear 15 is rotatably mounted in the middle position of the planet carrier 14. The first planetary gear 16 and the second planetary gear 17 mesh on both sides of the sun gear 15, respectively. The first planetary gear 16 and the second planetary gear 17 are rotatably mounted at both ends of the planet carrier 14, and the sun gear 15 drives the first planetary gear 16 and the second planetary gear 17 to rotate simultaneously. The output end of the geared motor 9 passes through the clutch bracket 8 and is rigidly connected to the sun gear 15. The geared motor 9 drives the sun gear 15 to rotate, and the sun gear 15 drives the first planetary gear 16 and the second planetary gear 17 to rotate. When the sun gear 15 rotates, it simultaneously drives the planet carrier 14 to rotate, thereby enabling the first planetary gear 16 or the second planetary gear 17 to engage the driven gear 11. Figure 8 As shown, when the geared motor 9 rotates forward, it drives the sun gear 15 to rotate forward. The sun gear 15 drives the planetary carrier 14 to swing towards the side of the first planetary gear 16, so that the first planetary gear 16 can engage the driven gear 11. Power is transmitted from the sun gear 15 through the first planetary gear 16 to the driven gear 11. At this time, the clutch mechanism is in the locked state. Figure 9 As shown, when the geared motor 9 reverses, it drives the sun gear 15 to reverse, and the sun gear 15 drives the planet carrier 14 to swing toward the side of the second planet gear 17, so that the second planet gear 17 can engage the driven gear 11. Power is transmitted from the sun gear 15 through the second planet gear 17 to the driven gear 11. At this time, the clutch structure is in the unlocked state.

[0045] Furthermore, in this embodiment, the clutch mechanism 2 also includes an intermediate gear 18, which meshes with the driven gear 11. The first planetary gear 16 and the second planetary gear 17 intermittently engage the intermediate gear 18. Specifically, to reduce the length of the planetary carrier 14, the clutch mechanism 2 is configured with an intermediate gear 18 for transmission. The intermediate gear 18 is installed between the driven gear 11 and the sun gear 15 and is always meshed with the driven gear 11. The arrangement of the intermediate gear 18 can reduce the length of the planetary carrier 14 when designing the clutch mechanism 2, thereby reducing the volume of the clutch mechanism 2, making the clutch mechanism 2 more compact, occupying less space, and facilitating the miniaturization of the knob housing 1. When the planetary carrier 14 swings toward the side of the first planetary gear 16, the first planetary gear 16 engages the intermediate gear 18, and power is transmitted to the driven gear 11 through the intermediate gear 18. When the planetary carrier 14 swings toward the side of the second planetary gear 17, the second planetary gear 17 engages the intermediate gear 18, and power is transmitted to the driven gear 11 through the second planetary gear 17.

[0046] Furthermore, in this embodiment, the first mounting base 7 is provided with a first limiting post 19 and a second limiting post 20. When the planetary carrier 14 swings to abut the first limiting post 19, the first planetary gear 16 engages the intermediate gear 18. When the planetary carrier 14 swings to abut the second limiting post 20, the second planetary gear 17 engages the intermediate gear 18. Specifically, in order to ensure that the power of the sun gear 15 can be smoothly transmitted to the intermediate gear 18, the planetary carrier 14 needs to be restricted from continuing to swing after it has swung to the correct position to prevent the planetary gear and the intermediate gear 18 from jamming and causing transmission failure. The first limiting post 19 and the second limiting post 20 are provided on the first mounting base 7. After the clutch mechanism 2 is installed on the first mounting base 7, when the clutch bracket 8 swings to one side of the first planetary gear 16, the clutch bracket 8 reaches the first limiting post 19. The first limiting post 19 restricts the clutch bracket 8 from continuing to swing. At this time, the first planetary gear 16 engages the intermediate gear 18, and the power is output smoothly. When the clutch bracket 8 swings to one side of the second planetary gear 17, the clutch bracket 8 reaches the second limit post 20. The second limit post 20 restricts the clutch bracket 8 from continuing to swing. At this time, the second planetary gear 17 engages the intermediate gear 18, and the power is output smoothly.

[0047] Furthermore, in this embodiment, the cantilever hole 5 is a polygonal hole, and a connecting block 38 is configured on the output shaft 13. The connecting block 38 is installed by engaging the lower end of the cantilever hole 5. Specifically, the cantilever hole 5 is a quadrilateral hole, and the connecting block 38 is adapted to the cantilever hole 5 in a quadrilateral shape. The connecting block 38 is fastened to the upper end of the output shaft 13, and the connecting block 38 is engaged with the lower side of the cantilever hole 5 to achieve torque transmission. The other side of the cantilever hole 5 can be connected to the transmission structure of the lock body and connected to the lock tongue. When the reduction motor 9 drives the output shaft 13 to rotate, the torque can be output to the lock tongue through the cantilever hole 5; when the user rotates the knob housing 1, the torque can be output to the lock tongue through the cantilever 4 and the cantilever hole 5, thereby realizing the locking and unlocking action of the lock tongue.

[0048] Further, in this embodiment, a first bearing seat 21 is provided on the fixed base 3, and a first bearing 22 is installed on the first bearing seat 21. The end of the cantilever 4 is formed as a sleeve post 23, which is adapted to the first bearing 22 and passes through the fixed base 3. A second bearing seat 24 is formed on the first mounting base 7, and a second bearing 25 is installed on the second bearing seat 24. The input end of the output gearbox 12 is sleeved with the driven gear 11 and then inserted with the second bearing 25. Specifically, in order to realize the rotational movement of the knob housing 1 and the driven gear 11, the first bearing 22 is adapted to the first bearing seat 21 and connected to the sleeve post 23 of the cantilever 4. The sleeve post 23 has a cylindrical structure. The first bearing 22 allows the knob housing 1 to rotate relative to the fixed base 3, thereby enabling the torque of the knob housing 1 to be transmitted to the latch through the cantilever 4 and the cantilever hole 5. Furthermore, a second bearing seat 24 is provided on the first mounting base 7 to mount the second bearing 25. The input end of the output gearbox 12 is rigidly connected to the driven gear 11 before being inserted into the second bearing 25 for mounting. This allows the driven gear 11 to rotate relative to the first mounting base 7, and ultimately outputs the torque of the geared motor 9 to the cantilever hole 5 through the output shaft 13 of the output gearbox 12. It can be understood that the geared motor 9 is controlled to rotate forward or backward by the control board of the electronic door lock, thereby realizing the locking and unlocking action; the knob housing 1 is manually operated by the user to rotate forward or backward, thereby realizing the locking and unlocking action.

[0049] Furthermore, in this embodiment, the mounting bracket 6 forms a receiving groove 26 on the outer side of the second bearing housing 24, and the output gearbox 12 is received in the receiving groove 26. After the mounting bracket 6 is closed with the knob housing 1 on the outer side of the receiving groove 26, it forms a receiving cavity 27, which accommodates the clutch mechanism 2. Specifically, in order to make the clutch structure more compact and reduce the assembly volume of the clutch structure, a receiving groove 26 is formed on the mounting bracket 6 on the outer side of the first bearing housing 21. The receiving groove 26 is adapted to the shape of the output gearbox 12, and the output gearbox 12 can be embedded in the receiving groove 26 for installation, so that most of the volume of the output gearbox 12 is accommodated in the receiving groove 26, which can effectively reduce the overall volume of the clutch structure and facilitate the miniaturization of the clutch structure. At the same time, the mounting bracket 6 has a notch design on the outer side of the receiving groove 26. When the mounting bracket 6 is assembled with the knob housing 1, a receiving cavity 27 is formed on the outer side of the receiving groove 26 and closed with the knob housing 1. The receiving cavity 27 can completely accommodate the clutch mechanism 2, effectively reducing the overall volume of the clutch structure.

[0050] Furthermore, in this embodiment, the mounting bracket 6 is provided with a blocking groove 28 at the upper end of the receiving groove 26, and the cantilever 4 is located within the blocking groove 28. The blocking groove 28 restricts the rotation angle of the cantilever 4. Specifically, since the operation of opening and closing the lock can usually be completed within a certain rotation angle, in order to reduce invalid rotation operations, a blocking groove 28 is provided on the mounting bracket 6 at the upper end of the receiving groove 26, and the cantilever 4 is located within the blocking groove 28. The blocking groove 28 can restrict the rotation angle of the cantilever 4, that is, the cantilever 4 rotates 180 degrees in the forward direction to complete the locking, at which time the cantilever 4 rotates from the first position 36 to the second position 37; the cantilever 4 rotates 180 degrees in the reverse direction to complete the unlocking, at which time the cantilever 4 rotates from the second position 37 to the first position 36.

[0051] Furthermore, in this embodiment, in order to facilitate the positioning and installation of the clutch mechanism 2, three first positioning posts 29 are provided on the first mounting base 7, and three positioning countersunk holes 30 are provided on the clutch bracket 8 corresponding to the first positioning posts 29. The first positioning posts 29 are fitted into one end of the positioning countersunk holes 30, and the other end of the positioning countersunk holes 30 is fastened to the first positioning posts 29 through screws, thereby realizing the positioning and fixed installation of the clutch mechanism 2, which is convenient and quick to install.

[0052] Furthermore, in this embodiment, in order to facilitate the positioning and installation of the clutch mechanism 2, the first mounting base 7 is also provided with a first insertion post 31 and a second insertion post 32, the lower part of the clutch bracket 8 is provided with a second positioning post 33, the second positioning post 33 is inserted into the first insertion post 31, and the end of the intermediate gear 18 is rotatably inserted into the second insertion post 32.

[0053] Furthermore, in this embodiment, in order to achieve a fixed connection between the mounting bracket 6 and the fixing base 3, the mounting bracket 6 is provided with three mounting holes 34. Screws pass through the fixing base 3 and are fastened to the mounting holes 34, thereby securely connecting the mounting bracket 6 and the fixing base 3.

[0054] Furthermore, in this embodiment, in order to improve the appearance quality of the clutch structure, a rear cover 35 is provided at the rear end of the knob housing 1. The rear cover 35 is installed on the rear end of the knob housing 1 and closes the clutch mechanism 2, thereby improving the appearance quality of the clutch structure.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electronic door lock clutch structure, characterized in that, include: A knob housing, which is rotatably fitted onto a fixed base, has an inner wall extending out of a cantilever, and the end of the cantilever is provided with a cantilever hole; The knob housing has an internal mounting bracket, which is fixedly connected to the fixed base, and a first mounting base is formed on the mounting bracket; The clutch mechanism is fixedly mounted on the first mounting base. The clutch mechanism includes a clutch bracket and a geared motor, a planetary gear swing mechanism, a driven gear, and an output gearbox mounted on the clutch bracket. The geared motor and the output gearbox are mounted on one side of the clutch bracket, and the planetary gear swing mechanism and the driven gear are mounted on the other side of the clutch bracket. The geared motor drives the planetary gear swing mechanism, which swings and engages the driven gear. The driven gear drives the output gearbox, and the output shaft of the output gearbox is connected to the cantilever hole. The output shaft drives the knob housing to rotate through the cantilever.

2. The electronic door lock clutch structure as described in claim 1, characterized in that, The planetary gear oscillating mechanism includes a planet carrier and a sun gear, a first planet gear, and a second planet gear rotatably mounted on the planet carrier. The first planet gear and the second planet gear are located on opposite sides of the sun gear, and both the first planet gear and the second planet gear mesh with the sun gear. The sun gear is connected to the geared motor, and the sun gear drives the first planet gear and the second planet gear to rotate simultaneously. The geared motor drives the sun gear in both forward and reverse directions, and the sun gear drives the planet carrier to swing left and right, so that the first planet gear and the second planet gear intermittently engage the driven gear.

3. The electronic door lock clutch structure as described in claim 2, characterized in that, The clutch mechanism further includes an intermediate gear that meshes with the driven gear, and the first planetary gear and the second planetary gear intermittently engage the intermediate gear.

4. The electronic door lock clutch structure as described in claim 3, characterized in that, The first mounting base is provided with a first limiting post and a second limiting post. When the planetary carrier swings to abut the first limiting post, the first planetary gear engages the intermediate gear. When the planetary carrier swings to abut the second limiting post, the second planetary gear engages the intermediate gear.

5. The electronic door lock clutch structure as described in claim 1, characterized in that, The cantilever hole is a polygonal hole, and a connecting block is configured on the output shaft. The connecting block is installed by snapping into the lower end of the cantilever hole.

6. The electronic door lock clutch structure as described in claim 1, characterized in that, The fixed base is provided with a first bearing seat, and a first bearing is installed on the first bearing seat. The end of the cantilever is formed as a sleeve post, which is adapted to be installed with the first bearing and passes through the fixed base.

7. The electronic door lock clutch structure as described in claim 1, characterized in that, A second bearing housing is formed on the first mounting base, and a second bearing is mounted on the second bearing housing. The input end of the output gearbox is sleeved with the driven gear and then inserted with the second bearing.

8. The electronic door lock clutch structure as described in claim 7, characterized in that, The mounting bracket forms a receiving groove on the outside of the second bearing housing, and the output gearbox is received in the receiving groove.

9. The electronic door lock clutch structure as described in claim 8, characterized in that, The mounting bracket, after being closed with the knob housing on the outside of the receiving groove, forms a receiving cavity, which accommodates the clutch mechanism.

10. The electronic door lock clutch structure as described in claim 9, characterized in that, The mounting bracket has a blocking groove at the upper end of the receiving groove, and the cantilever is located in the blocking groove, which restricts the rotation angle of the cantilever.

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