Lace mechanism and wearable device

Abstract

The utility model provides a lacing mechanism and wearable equipment and relates to the technical field of wearable equipment, the lacing mechanism provided by the utility model comprises a driving assembly, a sun gear, a planetary gear, a fixed inner gear ring, a movable inner gear ring and a wire spool, the number of teeth of the fixed inner gear ring is different from that of teeth of the movable inner gear ring, the position of the fixed inner gear ring is fixed, and the movable inner gear ring can rotate around the axis of the movable inner gear ring. The driving assembly is in transmission connection with the sun gear, the sun gear is meshed with the planetary gear, the planetary gear is meshed with the fixed inner gear ring and the movable inner gear ring, and the movable inner gear ring is in transmission connection with the wire spool. According to the lacing mechanism provided by the utility model, the technical problem that the rope belt is stuck in the wire spool due to the fact that the rope belt transmits the acting force to the driving piece through the transmission structure when the rope belt is wound too tightly in the prior art is solved.

Description

[0001] This application claims priority to the patent application filed on April 26, 2024, with application number 2024208989374, entitled "Leg-fastening Mechanism and Wearable Device". Technical Field

[0002] This utility model relates to the field of wearable device technology, and in particular to a strapping mechanism and a wearable device. Background Technology

[0003] Currently, automatic lacing systems are widely used in footwear, bags and other fields, providing great convenience to people's lives. The main components of an automatic lacing system are an automatic lacing device and a cord that works in conjunction with the automatic lacing device. The cord is wound into the automatic lacing device to tighten the item, or the automatic lacing device releases the cord to loosen it.

[0004] In existing technologies, automatic belt fastening devices transmit power from the drive unit to the winding reel via a transmission structure. By driving the winding reel to rotate in different directions, the belt can be tightened and loosened. However, existing transmission structures are not suitable for practical applications. When the belt is tightened too much, the belt will transmit the force to the drive unit through the transmission structure, causing the drive unit to jam. This results in the belt getting stuck in the winding reel, preventing it from loosening. Utility Model Content

[0005] The purpose of this utility model is to provide a strapping mechanism and wearable device to alleviate the technical problem in related technologies where, when the strap is tightened too much, the strap will transmit the force to the drive component through the transmission structure, causing the drive component to jam and thus the strap to get stuck in the winding reel.

[0006] In the first aspect, the belt mechanism provided by this utility model includes: a drive component, a sun gear, a planetary gear, a fixed internal gear ring, a movable internal gear ring, and a winding disc. The number of teeth of the fixed internal gear ring is different from the number of teeth of the movable internal gear ring, and the position of the fixed internal gear ring is fixed, while the movable internal gear ring can rotate around its own axis.

[0007] The drive assembly is connected to the sun gear, the sun gear meshes with the planetary gears, the planetary gears mesh with the fixed internal gear ring and the movable internal gear ring respectively, and the movable internal gear ring is connected to the winding disc.

[0008] Optionally, the fixed internal gear ring has 36 teeth, and the movable internal gear ring has 39 teeth.

[0009] Optionally, the planetary gear includes a first meshing section and a second meshing section arranged coaxially, wherein the module of the first meshing section is greater than the module of the second meshing section;

[0010] The first engagement section engages with the fixed internal gear ring, and the second engagement section engages with the movable internal gear ring.

[0011] Optionally, multiple planetary gears are provided;

[0012] The tethering mechanism further includes a planetary carrier and a number of planetary gear shafts equal to the number of planetary gears. The planetary gears are connected to the planetary gear shafts in a one-to-one correspondence, and the planetary gear shafts are rotatably connected to the planetary carrier.

[0013] Optionally, the drive assembly includes a motor, a worm gear, and a gear transmission assembly, wherein the motor is connected to the worm gear, and the gear transmission assembly meshes with the worm gear and the sun gear, respectively.

[0014] Optionally, the gear transmission assembly includes a primary meshing member and a secondary meshing member that mesh with each other, the primary meshing member meshing with the sun gear and the secondary meshing member meshing with the worm gear.

[0015] Optionally, the lacing mechanism further includes a module housing, the module housing including a module upper cover and a module lower cover, the module upper cover covering the module lower cover and being connected and fixed to the module lower cover, the module upper cover being provided with a first clearance hole;

[0016] The drive assembly, the sun gear, the planetary gear, the fixed internal gear ring, and the movable internal gear ring are all located between the upper cover and the lower cover of the module, and the winding disc is located inside the first clearance hole.

[0017] Optionally, the lacing mechanism further includes a bottom shell and a cover plate, the cover plate covering the open end of the bottom shell and being connected and fixed to the bottom shell, the module housing being disposed between the bottom shell and the cover plate, and the cover plate having a second clearance hole for the rope to pass through.

[0018] Optionally, the strapping mechanism further includes a locking button and a releasing button. Both the module housing and the bottom housing are provided with locking clearance holes and releasing clearance holes. The locking button is inserted into the locking clearance hole, and the releasing button is inserted into the releasing clearance hole.

[0019] Secondly, the wearable device provided by this utility model includes a cord and the aforementioned fastening mechanism, wherein both ends of the cord are wound around a winding reel in the fastening mechanism.

[0020] The wearable device provided by this utility model includes a cord and a strap mechanism. The strap mechanism includes a drive component, a sun gear, planetary gears, a fixed internal gear ring, a movable internal gear ring, and a winding reel. The fixed internal gear ring has a different number of teeth than the movable internal gear ring, and the fixed internal gear ring is fixed in position, while the movable internal gear ring can rotate around its own axis. The drive component is driven by the sun gear, which meshes with the planetary gears. The planetary gears mesh with both the fixed and movable internal gear rings, and the movable internal gear ring is driven by the winding reel. The two ends of the cord are fixed to the winding reel and wound around it. The drive component drives the sun gear to rotate, which in turn drives the planetary gears to rotate. The planetary gears then drive the movable internal gear ring and the winding reel to rotate. The drive component drives the winding reel to rotate in different directions, thereby tightening or loosening the cord accordingly. When the cord is tightened, the cord transmits the force to the planetary gears through the winding reel and the movable internal gear ring. Because the fixed internal gear ring and the movable internal gear ring have different numbers of teeth, they cannot rotate simultaneously. Furthermore, the fixed internal gear ring is in a fixed position, which restricts the rotation of the planetary gears. This prevents the planetary gears from transmitting the force to the drive assembly through the sun gear, thus preventing the drive assembly from jamming. In turn, this prevents the cord from getting stuck in the winding reel and preventing the cord from being released. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 An exploded view of the tethering mechanism provided in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the lacing mechanism provided in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the planetary gear in the belt mechanism provided in an embodiment of the present utility model;

[0025] Figure 4 A top view of the lacing mechanism provided in an embodiment of this utility model;

[0026] Figure 5 for Figure 4 A sectional view along line A-A;

[0027] Figure 6 for Figure 4 A sectional view along line B-B in the middle;

[0028] Figure 7 for Figure 4 A cross-sectional view along the C-C direction;

[0029] Figure 8 for Figure 4 A cross-sectional view along the D-D direction;

[0030] Figure 9 for Figure 4 A sectional view along the E-E direction;

[0031] Figure 10 for Figure 4 A cross-sectional view along the F-F direction;

[0032] Figure 11 for Figure 4 A cross-sectional view along the H-H direction.

[0033] Icons: 100 - Drive assembly; 110 - Motor; 120 - Worm gear; 131 - First-stage meshing component; 132 - Second-stage meshing component; 200 - Sun gear; 210 - Sun gear shaft; 300 - Planetary gear; 310 - First meshing section; 320 - Second meshing section; 331 - Upper fixed frame; 332 - Lower fixed frame; 340 - Planetary gear shaft; 400 - Fixed internal gear ring; 500 - Movable internal gear ring; 510 - Y-shaped seal ring; 600 - Winding reel; 610 - Winding seal ring; 710 - Module top cover; 711 - First clearance hole; 72 0 - Module bottom cover; 730 - Human body monitoring diaphragm; 740 - Button light control circuit board; 750 - 90-degree pin header; 760 - Main control circuit board; 770 - 2P male connector; 780 - Battery; 790 - Buffer foam; 810 - Bottom shell; 811 - Pin female connector; 812 - Pin sealing ring; 820 - Cover plate; 821 - Fixing screw; 830 - Magnetic charging head; 910 - Locking button; 920 - Releasing button; 930 - Waterproof sleeve; 940 - Button light-transmitting plate; 950 - Locking button light guide; 960 - Releasing button light guide. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0037] Example 1

[0038] like Figure 1 and Figure 2 As shown, the lacing mechanism provided in this embodiment of the present invention includes: a drive assembly 100, a sun gear 200, a planetary gear 300, a fixed internal gear ring 400, a movable internal gear ring 500, and a winding disc 600. The number of teeth of the fixed internal gear ring 400 is different from the number of teeth of the movable internal gear ring 500, and the position of the fixed internal gear ring 400 is fixed. The movable internal gear ring 500 can rotate around its own axis. The drive assembly 100 is connected to the sun gear 200 for transmission. The sun gear 200 meshes with the planetary gear 300. The planetary gear 300 meshes with the fixed internal gear ring 400 and the movable internal gear ring 500 respectively. The movable internal gear ring 500 is connected to the winding disc 600 for transmission.

[0039] Specifically, both the fixed internal gear ring 400 and the movable internal gear ring 500 are annular and coaxially arranged. The inner peripheral walls of both the fixed internal gear ring 400 and the movable internal gear ring 500 are provided with meshing teeth that mate with the planetary gear 300. The planetary gear 300 is located within the inner rings of the fixed internal gear ring 400 and the movable internal gear ring 500, and meshes with the sun gear 200, the fixed internal gear ring 400, and the movable internal gear ring 500, respectively. One end of the sun gear 200 is inserted into the fixed internal gear ring 400 from the side of the fixed internal gear ring 400 away from the movable internal gear ring 500, and meshes with the planetary gear 300. The sun gear 200 is coaxially arranged with the fixed internal gear ring 400. The winding disc 600 is connected and fixed to the end of the movable internal gear ring 500 away from the fixed internal gear ring 400. Specifically, the winding disc 600 and the movable internal gear ring 500 are integrally formed to improve the stability of the connection between them.

[0040] The two ends of the rope are fixed to the winding reel 600 and wound around the winding reel 600. The drive assembly 100 drives the sun gear 200 to rotate, the sun gear 200 drives the planet gear 300 to rotate, the planet gear 300 drives the movable internal gear ring 500 and the winding reel 600 to rotate, and the drive assembly 100 drives the winding reel 600 to rotate in different directions, thereby correspondingly tightening or loosening. When the cord is tightened, the cord transmits the force to the planetary gear 300 through the winding reel 600 and the movable internal gear ring 500. Since the fixed internal gear ring 400 and the movable internal gear ring 500 have different numbers of teeth, the fixed internal gear ring 400 and the movable internal gear ring 500 cannot rotate at the same time. Moreover, the fixed internal gear ring 400 is in a fixed position, which restricts the rotation of the planetary gear 300. This prevents the planetary gear 300 from transmitting the force to the drive assembly 100 through the sun gear 200, thus preventing the drive assembly 100 from jamming. In turn, this prevents the cord from getting stuck in the winding reel 600 and preventing the cord from being released.

[0041] In one implementation, the fixed internal gear ring 400 has 36 teeth, and the movable internal gear ring 500 has 39 teeth.

[0042] When the drive assembly 100 drives the winding reel 600 to tighten the rope, since the fixed internal gear ring 400 is in a fixed position, the sun gear 200 drives the planet gear 300 to run a circle along the 36 meshing teeth of the fixed internal gear ring 400. Under coaxial conditions, the movable internal gear ring 500 has 39 meshing teeth. Therefore, after the planet gear 300 completes one revolution, the movable internal gear ring 500 drives the winding reel 600 to move 3 teeth circumferentially, thus achieving the effect of deceleration rotation. When the rope is too tight and pulls the winding reel 600 in the opposite direction, the winding reel 600 transmits the force to the planetary gear 300 through the movable internal gear ring 500. Since the fixed internal gear ring 400 has 3 fewer meshing teeth than the movable internal gear ring 500, theoretically, the fixed internal gear ring 400 needs to move 3 meshing teeth in the circumferential direction to achieve coaxial transmission and rotation. However, because the position of the fixed internal gear ring 400 is fixed, it cannot rotate 3 meshing teeth in the circumferential direction. As a result, the planetary gear 300 cannot rotate along the fixed internal gear ring 400. The planetary gear 300 cannot transmit the force to the drive assembly 100 through the sun gear 200, thus preventing the drive assembly 100 from jamming and preventing the rope from getting stuck in the winding reel 600, making it impossible for the rope to unwind.

[0043] like Figure 3 As shown, the planetary gear 300 includes a first meshing section 310 and a second meshing section 320 arranged coaxially. The module of the first meshing section 310 is greater than the module of the second meshing section 320. The first meshing section 310 meshes with the fixed internal gear ring 400, and the second meshing section 320 meshes with the movable internal gear ring 500.

[0044] Specifically, the movable internal gear ring 500 engages with the second meshing section 320 with a smaller module, while the fixed internal gear ring 400 engages with the first meshing section 310 with a larger module. Therefore, when the movable internal gear ring 500 rotates one tooth, it drives the planetary gear 300 to rotate one tooth as well. The planetary gear 300 rotates in accordance with the rotation of the movable internal gear ring 500. If the fixed internal gear ring 400 wants to mesh with the planetary gear 300, it will travel 39 times less than 36 times. Since the position of the fixed internal gear ring 400 is fixed, it is impossible to achieve rotational meshing between the fixed internal gear ring 400 and the planetary gear 300, thus achieving the jamming function. This prevents the planetary gear 300 from transmitting force to the drive assembly 100 through the sun gear 200, preventing the drive assembly 100 from jamming, and thus preventing the rope from getting stuck in the winding reel 600, making it impossible for the rope to unwind.

[0045] like Figure 1 and Figure 2 As shown, multiple planetary gears 300 are provided; the belt mechanism also includes a planetary carrier and a number of planetary gear shafts 340 equal to the number of planetary gears 300. The multiple planetary gears 300 are connected to the multiple planetary gear shafts 340 in a one-to-one correspondence, and the multiple planetary gear shafts 340 are all rotatably connected to the planetary carrier.

[0046] Specifically, the planetary gears 300 can be configured as two, three, or four, etc. In this embodiment, three planetary gears 300 are provided. The planetary fixing bracket is mounted on the inner circumference of the fixed internal gear ring 400 and the movable internal gear ring 500, such as... Figure 1 and Figure 6 As shown, the planetary carrier includes an upper fixed frame 331 and a lower fixed frame 332. The outer peripheral walls of both the upper fixed frame 331 and the lower fixed frame 332 are circular and have the same diameter. Three planetary gear shafts 340 are provided, with three planetary gears 300 fixedly mounted on each shaft. The three planetary gear shafts 340 are located at the three vertices of an equilateral triangle, and both ends of each shaft are rotatably connected to the upper fixed frame 331 and the lower fixed frame 332. Partially meshing teeth of each planetary gear 300 are located outside the planetary carrier for meshing with the fixed internal gear ring 400 and the movable internal gear ring 500. The sun gear 200 includes a third meshing section and a fourth meshing section coaxially fixedly connected. The diameter of the third meshing section is smaller than that of the fourth meshing section. The third meshing section extends from the lower fixed frame 332 into the planetary fixed frame and meshes with the three planetary gears 300 respectively. The fourth meshing section is located outside the planetary fixed frame and meshes with the drive assembly. When the drive belt tightens or loosens, the sun gear 200 simultaneously drives the three planetary gears 300 to rotate. The three planetary gears 300 cooperate to drive the movable internal gear ring 500 to rotate. In addition, the three planetary gear shafts 340 are located at the three vertices of an equilateral triangle. Based on the stability of the triangle, the stability when driving the movable internal gear ring 500 can also be improved.

[0047] like Figure 2 , Figure 5 , Figure 9 and Figure 11 As shown, the drive assembly 100 includes a motor 110, a worm gear 120, and a gear transmission assembly. The motor 110 is connected to the worm gear 120 in a transmission manner, and the gear transmission assembly meshes with the worm gear 120 and the sun gear 200, respectively.

[0048] Specifically, the motor 110, worm gear 120, and gear transmission assembly are all located on the side of the fixed internal gear ring 400 opposite to the movable internal gear ring 500. The worm gear 120 is arranged in a direction perpendicular to the axis of the sun gear 200 and is connected to the output shaft of the motor 110. The gear transmission assembly includes a primary meshing member 131 and a secondary meshing member 132 that mesh with each other. The primary meshing member 131 meshes with the sun gear 200, and the secondary meshing member 132 meshes with the worm gear 120.

[0049] Specifically, the primary meshing member 131 is configured as a gear that meshes with the fourth meshing segment. The secondary meshing member 132 includes a fifth meshing segment and a sixth meshing segment that are coaxially fixedly connected. The diameter of the fifth meshing segment is larger than the diameter of the sixth meshing segment. The fifth meshing segment is provided with meshing teeth that mesh with the worm gear 120, and the sixth meshing segment is provided with meshing teeth that mesh with the primary meshing member 131.

[0050] When the winding reel 600 rotates, the motor 110 drives the worm gear 120 to rotate. The worm gear 120 transmits power to the sun gear 200 through the meshing primary engagement member 131 and secondary engagement member 132, thereby realizing the rotation of the winding reel 600. The above-described structure of the drive assembly 100 enables the motor 110 to transmit power to the sun gear 200 through the meshing worm gear 120, primary engagement member 131, secondary engagement member 132, and sun gear 200, thus improving the accuracy of the movement.

[0051] like Figure 1 and Figure 6 As shown, the lacing mechanism also includes a module housing, which includes a module upper cover 710 and a module lower cover 720. The module upper cover 710 covers the module lower cover 720 and is connected and fixed to the module lower cover 720. The module upper cover 710 is provided with a first clearance hole 711. The drive assembly 100, the sun gear 200, the planetary gear 300, the fixed internal gear ring 400 and the movable internal gear ring 500 are all located between the module upper cover 710 and the module lower cover 720. The winding reel 600 is located in the first clearance hole 711.

[0052] Specifically, both the upper module cover 710 and the lower module cover 720 are open shells with their openings facing each other. The upper module cover 710 and the lower module cover 720 are connected, forming a cavity between them for accommodating the drive assembly 100, the sun gear 200, the planetary gear 300, the fixed internal gear ring 400, and the movable internal gear ring 500. The sun gear 200 is rotatably connected to both the upper module cover 710 and the lower module cover 720 via a sun gear shaft 210. The fixed internal gear ring 400 is fixedly installed on the inner wall of the open end of the upper module cover 710, thereby fixing the position of the fixed internal gear ring 400. The movable internal gear ring 500 is located between the fixed internal gear ring 400 and the inner top wall of the module cover 710. The first clearance hole 711 is a through hole and is provided on the inner wall of the module cover 710 opposite to the movable internal gear ring 500. The diameter of the first clearance hole 711 is smaller than the diameter of the movable internal gear ring 500. The winding reel 600 is located inside the first clearance hole 711, allowing the rope to pass through the first clearance hole 711 and be wound onto the winding reel 600. Further, as... Figure 5As shown, a Y-shaped sealing ring 510 is fitted on the outer peripheral wall of the movable internal gear ring 500. The opening of the Y-shaped sealing ring faces the inner top wall of the module cover 710 to increase the sealing performance between the movable internal gear ring 500 and the module cover 710. A winding sealing ring 610 is fitted on the outer peripheral wall of the winding disc 600. The outer peripheral wall of the winding sealing ring 610 abuts against the inner wall of the first clearance hole 711 to improve the sealing performance between the winding disc 600 and the first clearance hole 711.

[0053] During assembly, the drive assembly 100, sun gear 200, planetary gear 300, fixed internal gear ring 400 and movable internal gear ring 500 can be assembled into the module housing first, and then the module housing can be installed in the required position for easy assembly and installation.

[0054] like Figures 1 to 11 As shown, the lacing mechanism also includes a bottom shell 810 and a cover plate 820. The cover plate 820 covers the open end of the bottom shell 810 and is connected and fixed to the bottom shell 810. The module housing is located between the bottom shell 810 and the cover plate 820. The cover plate 820 is provided with a second clearance hole for the rope to pass through.

[0055] Specifically, the bottom shell 810 is an open shell shape, and the module housing containing the drive assembly 100, the sun gear 200, the planetary gear 300, the fixed internal gear ring 400, and the movable internal gear ring 500 is installed inside the bottom shell 810. For example... Figure 8 As shown, the cover plate 820 is fixedly connected to the opening of the bottom shell 810 by the fixing screw 821. The bottom shell 810 and the cover plate 820 cooperate to protect the module shell and the components inside the module shell. In addition, the cover plate 820 is provided with two second clearance holes, which are used for the two ends of the rope to pass through, so that the rope can be wound on the winding reel 600.

[0056] like Figure 6 and Figure 10 As shown, the lacing mechanism also includes a locking button 910 and a releasing button 920. Both the module housing and the bottom housing 810 are provided with locking clearance holes and releasing clearance holes. The locking button 910 is inserted into the locking clearance hole, and the releasing button 920 is inserted into the releasing clearance hole.

[0057] like Figure 1 and Figure 5As shown, the module housing also includes a human body monitoring diaphragm 730, a button light control circuit board 740, a 90-degree pin header 750, a main control circuit board 760, and a 2P male pin 770. The human body monitoring diaphragm 730 is disposed on the inner top wall of the module cover 710 and is electrically connected to the main control circuit board 760. The button light control circuit board 740 is disposed along the side wall of the module cover 710 and is opposite to the locking clearance hole and the releasing clearance hole. The locking button 910 and the releasing button 920 both abut against the button light control circuit board 740. The main control circuit board 760 is disposed parallel to the human body monitoring diaphragm 730. The button light control circuit board 740 is located on the side of the human body monitoring diaphragm 730 opposite to the module cover 710. It is electrically connected to the main control circuit board 760 via 90-degree pin headers 750. One end of a 2P male pin 770 is electrically connected to the main control circuit board 760, and the other end extends through the bottom wall of the module cover 720 and out of the module housing. A battery 780 is located on the side of the main control circuit board 760 opposite to the human body monitoring diaphragm 730 and is electrically connected to the main control circuit board 760. A cushioning sponge 790 is placed between the main control circuit board 760 and the battery 780 for cushioning and protection. The wearer can press the locking button 910 or release the button 920 to cause the button light control circuit board 740 to transmit a signal to the main control circuit board 760. The main control circuit board 760 controls the motor 110 to rotate in the corresponding direction according to the wearer's needs, thereby tightening or loosening the strap.

[0058] Furthermore, both the locking button 910 and the releasing button 920 are fitted with waterproof sleeves 930, which are integrally injection molded with the module cover 710 to improve the waterproofness between the locking button 910 and the releasing button 920 and the module housing.

[0059] The locking button 910 and the releasing button 920 are also covered with a button light-transmitting plate 940. A locking button light guide column 950 is inserted in the middle of the locking button 910, and a releasing button light guide column 960 is inserted in the middle of the releasing button 920. The button light-transmitting plate 940, the locking button light guide column 950, and the releasing button light guide column 960 are used to guide the light emitted by the button light control circuit board 740.

[0060] like Figure 7 As shown, the inner bottom wall of the bottom shell 810 has a corresponding insertion protrusion at the position of the 2P male pin 770. The insertion protrusion protrudes from the inner bottom wall of the bottom shell 810 and has a pin socket 811. The magnetic charging head 830 is connected and soldered to the pin socket 811 via a wire. The position where the 2P male pin 770 protrudes on the lower cover 720 of the module has a slot that mates with the pin socket 811. When the module housing is installed in the bottom shell 810, the pin socket 811 is inserted into the slot, and the 2P male pin 770 is inserted into the insertion hole on the pin socket 811. A pin sealing ring 812 is provided between the insertion protrusion and the slot to improve the sealing performance.

[0061] Example 2

[0062] The wearable device provided in this embodiment of the utility model includes a cord and the above-mentioned fastening mechanism, with both ends of the cord wound around a winding reel 600 in the fastening mechanism.

[0063] Specifically, the transmission device provided in this embodiment of the present invention can be shoes, hats or clothes, etc., with the rope passing through the corresponding winding position and both ends wrapped around the winding reel 600, and the tying mechanism realizing the automatic tightening and loosening of the rope.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lacing mechanism, characterized in that, include: The drive assembly (100), sun gear (200), planetary gear (300), fixed internal gear ring (400), movable internal gear ring (500), and winding disc (600) are provided. The number of teeth of the fixed internal gear ring (400) is different from the number of teeth of the movable internal gear ring (500), and the position of the fixed internal gear ring (400) is fixed, while the movable internal gear ring (500) can rotate about its own axis. The drive assembly (100) is connected to the sun gear (200) for transmission. The sun gear (200) meshes with the planetary gear (300). The planetary gear (300) meshes with the fixed internal gear ring (400) and the movable internal gear ring (500) respectively. The movable internal gear ring (500) is connected to the winding disc (600) for transmission.

2. The lacing mechanism of claim 1, wherein, The fixed internal gear ring (400) has 36 teeth, and the movable internal gear ring (500) has 39 teeth.

3. The lacing mechanism of claim 2, wherein, The planetary gear (300) includes a first meshing section (310) and a second meshing section (320) arranged coaxially, wherein the module of the first meshing section (310) is greater than the module of the second meshing section (320); The first engagement section (310) engages with the fixed internal gear ring (400), and the second engagement section (320) engages with the movable internal gear ring (500).

4. The lacing mechanism of any of claims 1-3, wherein, The planetary gears (300) are provided in multiple forms; The tethering mechanism further includes a planetary carrier and a number of planetary gear shafts (340) equal to the number of planetary gears (300). The multiple planetary gears (300) are connected to the multiple planetary gear shafts (340) in a one-to-one correspondence, and the multiple planetary gear shafts (340) are all rotatably connected to the planetary carrier.

5. The lacing mechanism of any of claims 1-3, wherein, The drive assembly (100) includes a motor (110), a worm gear (120), and a gear transmission assembly. The motor (110) is connected to the worm gear (120) for transmission, and the gear transmission assembly meshes with the worm gear (120) and the sun gear (200) respectively.

6. The lacing mechanism of claim 5, wherein, The gear transmission assembly includes a primary meshing member (131) and a secondary meshing member (132) that mesh with each other. The primary meshing member (131) meshes with the sun gear (200), and the secondary meshing member (132) meshes with the worm gear (120).

7. The lacing mechanism of claim 1, wherein, The lacing mechanism also includes a module housing, which includes a module upper cover (710) and a module lower cover (720). The module upper cover (710) covers the module lower cover (720) and is connected and fixed to the module lower cover (720). The module upper cover (710) is provided with a first clearance hole (711). The drive assembly (100), the sun gear (200), the planetary gear (300), the fixed internal gear ring (400), and the movable internal gear ring (500) are all located between the module upper cover (710) and the module lower cover (720), and the winding disc (600) is located inside the first clearance hole (711).

8. The lacing mechanism of claim 7, wherein, The tying mechanism further includes a bottom shell (810) and a cover plate (820). The cover plate (820) covers the open end of the bottom shell (810) and is connected and fixed to the bottom shell (810). The module housing is located between the bottom shell (810) and the cover plate (820). The cover plate (820) is provided with a second clearance hole for the rope to pass through.

9. The lacing mechanism of claim 8, wherein, The lacing mechanism also includes a locking button (910) and a releasing button (920). Both the module housing and the bottom shell (810) are provided with locking clearance holes and releasing clearance holes. The locking button (910) is inserted into the locking clearance hole, and the releasing button (920) is inserted into the releasing clearance hole.

10. A wearable device, characterized in that, It includes a cord and a tying mechanism as described in any one of claims 1-9, wherein the two ends of the cord are wound around a winding reel (600) in the tying mechanism.

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