Strap adjustment mechanism and electronic device

Abstract

The application discloses a band adjusting mechanism and an electronic device, and belongs to the field of electronic devices. In the band adjusting mechanism, a knob is installed on a mounting seat, and the mounting seat and a winding seat are stacked along a first direction. The knob and the winding seat are rotationally connected with the mounting seat, and the winding seat is fixedly connected with an end of a rope. A locking assembly comprises a swing tooth. The knob is provided with a first driving protrusion, and the winding seat is provided with a second driving protrusion. In the rotating direction of the knob, the swing tooth is clamped between the first driving protrusion and the second driving protrusion and swings between the first driving protrusion and the second driving protrusion. One end of the swing tooth is provided with a locking surface for limiting cooperation with a peripheral wall of the mounting seat. In the case that the knob is subjected to a rotating driving external force, the swing tooth is switched from a locking state to an unlocking state. In the locking state, the locking surface of the swing tooth and the peripheral wall of the mounting seat are in mutual abutment, so as to limit the rotation of the winding seat relative to the mounting seat. In the unlocking state, the locking surface of the swing tooth can move relative to the peripheral wall of the mounting seat, so that the winding seat can rotate relative to the mounting seat.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to a strap adjustment mechanism and an electronic device. Background Technology

[0002] In wearable devices such as smartwatches and smart glasses, straps are typically used to create a relatively stable fit between the device and the user's arm or head. Furthermore, in these technologies, wearable devices often utilize ratchet mechanisms and flexible arms to allow for adjustable strap tightness, thus adapting to users of different body types.

[0003] However, during the adjustment of the strap using the ratchet mechanism, the elastic arm needs to engage with the ratchet teeth in sequence, which can easily generate elastic jumping noise. This may significantly interfere with the immersive experience of the device, resulting in a poor user experience. Summary of the Invention

[0004] The purpose of this application is to provide a strap adjustment mechanism and an electronic device to solve the problem that the elastic jumping noise emitted when the wearable device uses a ratchet mechanism to adjust the strap will greatly interfere with the immersive experience of the device, resulting in a poor user experience.

[0005] In a first aspect, embodiments of this application provide a strap adjustment mechanism, which includes a knob, a mounting base, a winding base, a rope, and a locking assembly for preventing the rope from becoming loose, wherein; The knob is mounted on the mounting base, and the mounting base and the winding base are stacked along the first direction. Both the knob and the winding base are rotatably connected to the mounting base, and the winding base is fixedly connected to the end of the rope. The locking assembly includes a swing tooth, the knob is provided with a first driving protrusion, and the winding seat is provided with a second driving protrusion. In the rotation direction of the knob, the swing tooth is sandwiched between the first driving protrusion and the second driving protrusion, and the swing tooth can swing between the first driving protrusion and the second driving protrusion. One end of the swing tooth is provided with a locking surface for limiting and cooperating with the peripheral wall of the mounting seat. The swing tooth has a locked state and an unlocked state, and when the knob is subjected to a rotational driving force, the swing tooth switches from the locked state to the unlocked state; When the oscillating tooth is in the locked state, the locking surface of the oscillating tooth abuts against the peripheral wall of the mounting base to restrict the winding seat from rotating relative to the mounting base; When the oscillating tooth is in the unlocked state, the locking surface of the oscillating tooth can move relative to the peripheral wall of the mounting base, allowing the winding seat to rotate relative to the mounting base.

[0006] Secondly, embodiments of this application disclose an electronic device, which includes a device body and the aforementioned strap adjustment mechanism, wherein the rope is connected between the device body and the winding seat.

[0007] This application discloses a strap adjustment mechanism, in which a knob can drive a second drive protrusion to rotate via a first drive protrusion, thereby causing the winding seat to rotate relative to the mounting seat. By fixing the winding seat to the end of the rope, the winding seat can tighten and loosen the rope during rotation.

[0008] Furthermore, in the strap adjustment mechanism disclosed in this application, the locking component includes a swing tooth. In the rotation direction of the knob, the swing tooth is clamped between the first drive protrusion and the second drive protrusion, and the swing tooth can swing between the first drive protrusion and the second drive protrusion. At the same time, the swing tooth is provided with a locking surface near the peripheral wall of the mounting base for limiting and cooperating with the peripheral wall of the mounting base, so as to prevent the winding seat from uncontrollably loosening the rope.

[0009] When subjected to a rotational driving force, the oscillating tooth can switch from a locked state to an unlocked state. In the unlocked state, the oscillating tooth can move relative to the peripheral wall of the mounting base, thus preventing it from interfering with the active rotation of the knob and ensuring the normal operation of rope loosening and tightening. In the locked state, the locking surface of the oscillating tooth abuts against the peripheral wall of the mounting base, ensuring that both the winding seat and the knob are in upper limit engagement with the mounting base in the rotational direction. Under these conditions, even when the rope is subjected to an expansion effect, the rope will not actively pull the winding seat to rotate relative to the mounting base, thus ensuring that the oscillating tooth keeps the rope at its current length and prevents the rope from uncontrollably loosening.

[0010] As described above, in the strap adjustment mechanism disclosed in this application embodiment, since no ratchet or other mechanism is provided, and the swinging process of the swinging teeth does not generate elastic jump noise, the adjustment process of the strap adjustment mechanism can prevent significant interference with the immersive experience of the device, thereby improving the user experience of the device. Attached Figure Description

[0011] Figure 1 This is an exploded view of the strap adjustment mechanism disclosed in the embodiments of this application; Figure 2 This is a cross-sectional schematic diagram of a portion of the structure in the strap adjustment mechanism disclosed in the embodiments of this application; Figure 3This is a cross-sectional schematic diagram of the strap adjustment mechanism disclosed in the embodiments of this application; Figure 4 yes Figure 3 The diagram shown is a cross-sectional view of the structure at point II; Figure 5 yes Figure 4 The diagram shown is a cross-sectional view of the structure at point II-II; Figure 6 This is a schematic diagram of the frictional force between the swing teeth and the mounting base when the knob is rotated in the strap adjustment mechanism disclosed in this application embodiment; Figure 7 This is a schematic diagram of the frictional force between the swing teeth and the mounting base when the knob is not actively rotated in the strap adjustment mechanism disclosed in this application embodiment; Figure 8 This is a schematic diagram of a portion of the strap adjustment mechanism, including the knob, disclosed in the embodiments of this application; Figure 9 This is a schematic diagram of the mounting base in the strap adjustment mechanism disclosed in the embodiments of this application; Figure 10 This is a schematic diagram of the mounting base in the strap adjustment mechanism disclosed in this application in another direction; Figure 11 This is a schematic diagram of a portion of the structure of the strap adjustment mechanism, including the base, disclosed in the embodiments of this application; Figure 12 This is a schematic diagram of the base portion of the strap adjustment mechanism disclosed in this application, viewed from another direction. Figure 13 This is a schematic diagram of a portion of the strap adjustment mechanism, including the support frame, disclosed in the embodiments of this application; Figure 14 This is a schematic diagram of the bracket portion of the strap adjustment mechanism disclosed in the embodiments of this application in another direction; Figure 15 This is a schematic diagram of the winding seat in the strap adjustment mechanism disclosed in the embodiments of this application; Figure 16 This is a schematic diagram of the winding seat in the strap adjustment mechanism disclosed in this application in another direction; Figure 17 This is a schematic diagram of the swing teeth in the strap adjustment mechanism disclosed in the embodiments of this application; Figure 18 This is a schematic diagram of the swing teeth in another direction in the strap adjustment mechanism disclosed in the embodiments of this application; Figure 19 This is a schematic diagram of the structure of the first limiting member in the strap adjustment mechanism disclosed in the embodiments of this application; Figure 20This is a schematic diagram of the structure of the first limiting member in the strap adjustment mechanism disclosed in the embodiments of this application in another direction; Figure 21 This is a schematic diagram of a portion of the structure of the electronic device disclosed in the embodiments of this application.

[0012] The attached diagram is described as follows: 10-Strap adjustment mechanism, 20-Equipment body, 110-Knob 120-Mounting base, 121-Cylinder body, 1211-Limiting groove, 1212-First clearance notch, 122-Limiting inner edge, 123-Mounting flange, 124-First stud 130 - Base, 131 - Second clearance notch 140 - Positioning rod, 150 - Snap ring, 160 - Bracket, 170 - Fixing lug, 180 - Second stud, 190 - Mounting post 200-Winding base, 210-Base body, 211-Winding cylinder, 2111-Threading hole, 212-Base plate, 213-Cable post, 214-Receiving cylinder, 220-Limiting structure, 310 - First driving protrusion, 320 - Second driving protrusion, 320a - Accommodating notch, 321 - First abutting wall, 322 - Second abutting wall, 323 - Limiting hole 400-rope, 500-Locking assembly, 510-Rotating tooth, 511-Locking surface, 511a-First locking point, 511b-Second locking point, 512-Mounting hole, 520-Elastic element. 600-Limiting component, 610-Stop structure, 620-First limiting member, 621-First limiting part, 622-Mounting ring, 630-Second limiting member, 700-damping ring, M - Center of oscillation, N - Center of rotation, L - First straight line. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0014] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0015] like Figures 1-21 As shown, this application discloses a strap adjustment mechanism 10, and the strap adjustment mechanism 10 disclosed in this application can be applied to... Figure 21 The electronic devices shown typically include wearable devices such as smartwatches and smart glasses. Alternatively, a strap adjustment mechanism 10 can be provided for mobile phones and other electronic devices to enable them to be worn. The strap adjustment mechanism 10 disclosed in this application is used to adjust the strap it includes, thereby changing the size of the wearing space formed by the device body 20 connected to the strap and the strap. In other words, the strap adjustment mechanism 10 adjusts the tightness of the strap to allow different users to use the electronic device more comfortably.

[0016] like Figure 1 and Figure 2 As shown, the strap adjustment mechanism 10 disclosed in this application includes a knob 110, a mounting base 120, a winding base 200, a rope 400, and a locking assembly 500 to prevent the rope 400 from loosening. This ensures that after the strap adjustment mechanism 10 completes the adjustment of the rope 400's length, the rope 400's length remains locked, preventing the rope 400 from uncontrollably loosening or tightening. Of course, the strap adjustment mechanism 10 may also include screws or clips that provide a connecting function to assemble the aforementioned components; these will not be listed here.

[0017] The knob 110 is the device in the strap adjustment mechanism 10 that is directly operated by the user. The knob 110 can be made of a hard material such as plastic. The knob 110 is typically a cylindrical structure. To cover and protect the internal structure of the strap adjustment mechanism 10, such as... Figure 8 As shown, the knob 110 can be made to have an opening at only one end and a closed end at the other. In addition, a pattern can be provided on the outer periphery of the knob 110 to increase the friction between the knob 110 and the user, making it easier for the user to operate the strap adjustment mechanism 10 by turning the knob 110.

[0018] During the operation of the strap adjustment mechanism 10, the knob 110 serves as the input unit, and the rope 400 serves as the output unit. As the knob 110 rotates, the rope 400 can be tightened and loosened. More specifically, during the adjustment of the rope 400, it can be tightened by rotating it in a winding manner, and correspondingly, it can be loosened by rotating it in a loosening manner.

[0019] In the strap adjustment mechanism 10 disclosed in the embodiments of this application, such as Figure 15 As shown, the winding base 200 can be used as the anchoring structure for the rope 400, and the locking assembly 500 can be used as the force transmission medium between the knob 110 and the winding base 200. Of course, to ensure a good assembly relationship between the knob 110 and the winding base 200, in this embodiment, the knob 110 is mounted on the mounting base 120, which is the part of the strap adjustment mechanism 10 used to fix it to the device body 20 of the electronic device, thereby ensuring that both the knob 110 and the winding base 200 can rotate relative to the device body 20 of the electronic device.

[0020] Furthermore, the mounting base 120 and the winding base 200 are stacked along the first direction, and as shown... Figure 6 and Figure 7 As shown, both the knob 110 and the winding seat 200 are rotatably connected to the mounting base 120, and the winding seat 200 is fixedly connected to the end of the rope 400, so that when the knob 110 rotates relative to the mounting base 120, the knob 110 can drive the winding seat 200 to rotate relative to the mounting base 120 as well. Optionally, the knob 110 and the winding seat 200 can be formed in one piece. In other embodiments of this application, in order to reduce the processing and assembly difficulty of the two, the knob 110 and the winding seat 200 can be formed separately, and the two can be linked by other devices, so that when the knob 110 rotates relative to the mounting base 120, the winding seat 200 can be driven to rotate relative to the mounting base 120 as well. The aforementioned other devices may specifically include the first driving protrusion 310 and the second driving protrusion 320 mentioned below.

[0021] In detail, the knob 110 is provided with a first driving protrusion 310, and the winding seat 200 is provided with a second driving protrusion 320. The first driving protrusion 310 and the second driving protrusion 320 overlap in the rotation direction of the knob 110. That is, in the rotation axis of the knob 110 (i.e., the first direction mentioned above), the first driving protrusion 310 extends from the knob 110 toward the winding seat 200 and passes over the top surface of the second driving protrusion 320. As the first driving protrusion 310 rotates with the knob 110, the second driving protrusion 320 can provide a blocking effect for the first driving protrusion 310. Thus, the first driving protrusion 310 can drive the second driving protrusion 320 to rotate together with the mounting seat 120. Based on this, the second driving protrusion 320 can drive the winding seat 200 to rotate in the same direction as the knob 110 relative to the mounting seat 120.

[0022] In addition, such as Figure 6 and Figure 7 As shown, when the knob 110 rotates forward relative to the mounting base 120 in the first direction, the first driving protrusion 310 can engage with one end face of the second driving protrusion 320, and the second driving protrusion 320 drives the winding seat 200 to rotate forward relative to the mounting base 120 in the first direction. Correspondingly, when the knob 110 rotates backward relative to the mounting base 120 in the first direction, the first driving protrusion 310 can engage with the other end face of the second driving protrusion 320, and the second driving protrusion 320 drives the winding seat 200 to rotate backward relative to the mounting base 120 in the first direction. One of the forward and reverse rotations can be clockwise, and the other can be counterclockwise. Furthermore, the two opposing end faces of the second driving protrusion 320 can be the first abutment wall 321 and the second abutment wall 322 of the second driving protrusion 320, respectively.

[0023] Based on the above, by fixing the end of the rope 400 to the winding seat 200, the rope 400 can be tightened and loosened by rotating the knob 110 clockwise and counterclockwise, thereby causing the winding seat 200 to rotate in the same direction relative to the mounting base 120. Of course, the knob 110 can be rotated clockwise to tighten the rope 400, or it can be rotated counterclockwise to tighten the rope 400; this is not limited to this method.

[0024] To ensure that the rope 400 remains at the appropriate length after the strap adjustment mechanism 10 has completed the length adjustment, thereby allowing the electronic device to be worn stably, the strap adjustment mechanism 10 disclosed in this application embodiment, such as... Figure 1 and Figure 4As shown, the locking assembly 500 includes a swing tooth 510. During the assembly of the strap adjustment mechanism 10, the swing tooth 510 is sandwiched between the first drive protrusion 310 and the second drive protrusion 320 in the rotation direction of the knob 110, and the swing tooth 510 can swing between the first drive protrusion 310 and the second drive protrusion 320. Of course, in this application, the swinging action of the swing tooth 510 needs to be additionally driven, and when the swing tooth 510 is no longer subjected to external force, the swing tooth 510 can form a limiting relationship with the mounting base 120 in the rotation direction to prevent the rope 400 from uncontrollably loosening.

[0025] Furthermore, in this application, one end of the swing tooth 510 is provided with a locking surface 511 for limiting and engaging with the peripheral wall of the mounting base 120. More specifically, the locking surface 511 is located at one end of the swing tooth 510 near the peripheral wall of the mounting base 120. Based on this, in this embodiment, the swing tooth 510 has a locked state and an unlocked state. When the knob 110 is subjected to a rotational driving force, the swing tooth 510 can switch from the locked state to the unlocked state. Correspondingly, when the knob 110 is no longer subjected to a rotational driving force, the swing tooth 510 can return from the unlocked state to the locked state.

[0026] When the oscillating tooth 510 is in the locked state, the locking surface 511 of the oscillating tooth 510 abuts against the peripheral wall of the mounting base 120 to restrict the rotation of the winding seat 200 relative to the mounting base 120. That is, in the rotation direction of the knob 110, both the winding seat 200 and the knob 110 are in a limiting engagement with the mounting base 120. At the same time, when the oscillating tooth 510 is in the unlocked state, the locking surface 511 of the oscillating tooth 510 can move relative to the peripheral wall of the mounting base 120, allowing the winding seat 200 to rotate relative to the mounting base 120.

[0027] When the oscillating tooth 510 is in the unlocked state, the locking surface 511 of the oscillating tooth 510 can move relative to the peripheral wall of the mounting base 120, so that the winding base 200 can rotate relative to the mounting base 120. Specifically, the movement of the locking surface 511 of the oscillating tooth 510 relative to the peripheral wall of the mounting base 120 can include the oscillating tooth 510 and the peripheral wall of the mounting base 120 being separated or slidingly engaged.

[0028] More specifically, the ability of the oscillating tooth 510 to move relative to the peripheral wall of the mounting base 120 includes at least one of the following two states: Rotate the knob 110 in the first direction in the positive direction. The knob 110 drives the swing tooth 510 to swing through the second drive protrusion 320, so that the swing tooth 510 slides and engages with the peripheral wall of the mounting base 120. The swing tooth 510 is in the above-mentioned unlocked state. Rotate the knob 110 in the opposite direction around the first direction. The knob 110 pushes the swing tooth 510 to swing through the first drive protrusion 310, so that the swing tooth 510 separates from the peripheral wall of the mounting base 120 and the swing tooth 510 is in the above-mentioned unlocked state.

[0029] That is, in this application, when the knob 110 is subjected to a rotational driving force, the knob 110 can cause the swing tooth 510 to rotate relative to the mounting base 120 along with the first driving protrusion 310 (or the second driving protrusion 320). During the rotation of the swing tooth 510, the swing tooth 510 can slide against or be spaced apart from the peripheral wall of the mounting base 120 to ensure that the swing tooth 510 does not limit the movement of the inner peripheral wall of the mounting base 120, thereby ensuring that the swing tooth 510 does not interfere with the rotation of the knob 110. The process of adjusting the length of the rope 400 causes interference; when the external force is removed, if the user applies an expansion force to the rope 400 and causes the rope 400 to pull the winding seat 200, the winding seat 200 will cause the swing tooth 510 to swing. This allows the swing tooth 510 to contact the peripheral wall of the mounting seat 120. When the rope 400 is taut, the transmission effect of the winding seat 200 can make the swing tooth 510 and the peripheral wall of the mounting seat 120 form a stable limiting fit relationship.

[0030] This application discloses a strap adjustment mechanism 10, in which the knob 110 can drive the second drive protrusion 320 to rotate through the first drive protrusion 310, thereby causing the winding seat 200 to rotate relative to the mounting seat 120. By fixing the winding seat 200 to the end of the rope 400, the winding seat 200 can tighten and loosen the rope 400 during rotation.

[0031] Furthermore, in the strap adjustment mechanism 10 disclosed in this application, the locking assembly 500 includes a swing tooth 510. In the rotation direction of the knob 110, the swing tooth 510 is sandwiched between the first drive protrusion 310 and the second drive protrusion 320, and the swing tooth 510 can swing between the first drive protrusion 310 and the second drive protrusion 320. At the same time, the swing tooth 510 is provided with a locking surface 511 near the peripheral wall of the mounting base 120 for limiting and cooperating with the peripheral wall of the mounting base 120, so as to prevent the winding seat 200 from uncontrollably loosening the rope 400.

[0032] When subjected to a rotational driving force, the oscillating tooth 510 can switch from a locked state to an unlocked state. In the unlocked state, the oscillating tooth 510 can move relative to the peripheral wall of the mounting base 120, thus preventing the oscillating tooth 510 from interfering with the active rotation of the knob 110 and ensuring the normal operation of the rope 400's loosening and tightening. In the locked state, the locking surface 511 of the oscillating tooth 510 abuts against the peripheral wall of the mounting base 120, so that both the winding base 200 and the knob 110 are in upper limit engagement with the mounting base 120 in the rotational direction. Under this condition, even when the rope 400 is subjected to an expansion effect, the rope 400 will not actively pull the winding base 200 to rotate relative to the mounting base 120, thus ensuring that the oscillating tooth 510 can keep the rope 400 at its current length and prevent the rope 400 from uncontrollably loosening.

[0033] As described above, in the strap adjustment mechanism 10 disclosed in this application embodiment, since no ratchet or other mechanism is provided, and the swinging process of the swinging tooth 510 does not generate elastic jump noise, the adjustment process of the strap adjustment mechanism 10 can prevent it from causing significant interference to the immersive experience of the device, thereby improving the user experience of the device.

[0034] As described above, when the knob 110 is subjected to a rotational external force, and when the knob 110 rotates forward and backward around the first direction, it can actively tighten and loosen the rope 400. When the rotational external force acting on the knob 110 is removed, the swing tooth 510 can engage with the peripheral wall of the mounting base 120 to limit the rope 400 from uncontrolled loosening.

[0035] Based on this, in a specific embodiment of this application, such as Figure 6 and Figure 7 As shown, when the knob 110 is subjected to a rotational driving force and rotates in the positive direction around the first direction, the knob 110 drives the second driving protrusion 320 to rotate through the first driving protrusion 310. The second driving protrusion 320 drives the winding seat 200 to rotate in the positive direction around the first direction to tighten the rope 400. The second driving protrusion 320 also drives the swing tooth 510 to rotate in the positive direction around the first direction. Correspondingly, when the knob 110 is subjected to a rotational driving force and rotates in the opposite direction around the first direction, the knob 110 pushes the swing tooth 510 through the first driving protrusion 310, and the locking surface 511 of the swing tooth 510 is spaced apart from the peripheral wall of the mounting base 120. The swing tooth 510 is used to drive the second driving protrusion 320 to rotate, and the second driving protrusion 320 drives the winding seat 200 to rotate in the opposite direction around the first direction to loosen the rope 400. Furthermore, when the rotational driving force acting on the knob 110 is removed, the locking surface 511 of the swing tooth 510 abuts against the peripheral wall of the mounting base 120 to restrict the winding seat 200 from driving the second driving protrusion 320 to rotate in the opposite direction around the first direction.

[0036] Among them, one of the aforementioned forward rotation and reverse rotation can be Figure 6 The clockwise direction shown, and the other is Figure 7 The direction shown is counterclockwise. Furthermore, the source of the rotational driving force can be provided by the user by turning the knob 110, and it acts on the knob 110. Accordingly, when it is necessary to rotate the knob 110 in the forward direction, the direction of the rotational driving force is in the forward direction, and vice versa.

[0037] Of course, in this embodiment of the application, in order to ensure that the swing tooth 510 can provide a locking function for the rope 400 when the knob 110 is no longer subjected to external rotational driving force, the setting position and other parameters of the swing tooth 510 need to correspond to the rotation direction of the rope 400 when tightening and loosening.

[0038] To more intuitively illustrate the structure of the locking surface 511 of the swing tooth 510, in a specific embodiment of this application, the locking surface 511 can include a first locking point 511a and a second locking point 511b. When the rope 400 is actively released, both the knob 110 and the winding seat 200 rotate in opposite directions around the first direction. Based on this, when the swing tooth 510 rotates in opposite directions with the knob 110 and the winding seat 200, it can be considered that the first locking point 511a is always located downstream of the second locking point 511b. First locking point 511a Second locking point 511b Meanwhile, since the swing tooth 510 can swing between the first drive protrusion 310 and the second drive protrusion 320, a swing center M is provided at the end of the swing tooth 510 away from the peripheral wall of the mounting base 120, and the swing tooth 510 can swing relative to the mounting base 120 around the aforementioned swing center M. Based on this, in this embodiment, when the winding base 200 rotates in the opposite direction with the knob 110 to actively release the rope 400, the first locking point 511a and the second locking point 511b can both be located upstream of the line connecting the swing center M and the rotation center N of the winding base 200, so as to ensure that the first locking point 511a and the second locking point 511b can simultaneously contact the peripheral wall of the mounting base 120, so that the entire swing tooth 510 can be mutually limited with the mounting base 120 in the direction of reverse rotation around the first direction, thus restricting the winding base 200 from uncontrollably rotating relative to the mounting base 120 in the direction of reverse rotation around the first direction.

[0039] Of course, to ensure that the first locking point 511a and the second locking point 511b can simultaneously contact the peripheral wall of the mounting base 120, the distance between the second locking point 511b and the aforementioned swing center M can be greater than the distance between the first locking point 511a and the aforementioned swing center M. Furthermore, in this application, as... Figure 6 and Figure 7 As shown, the locking surface 511 may include a plurality of locking points, and any two locking points may be the aforementioned first locking point 511a and second locking point 511b, respectively, to improve the reliability of the locking relationship between the locking surface 511 and the peripheral wall of the mounting base 120. Based on this, in order to reduce the processing difficulty of the locking surface 511, in a specific embodiment of this application, the plurality of the aforementioned locking points may be distributed sequentially, thereby making the locking surface 511 of the swing tooth 510 form an arc-shaped surface extending along the rotation direction of the knob 110. Of course, the distance between different positions in the locking surface 511 and the swing center M of the swing tooth 510 is different from each other, that is, the aforementioned arc-shaped surface is not a perfect circle arc with the swing center M as the center.

[0040] In the illustrated embodiment, the strap adjustment mechanism further includes the bracket 160 mentioned below and the mounting post 190 fixed on the bracket 160, wherein the second drive protrusion 320 and the mounting post 190 are spaced apart and disposed on the same side of the bracket 160, and the swing tooth 510 is sleeved and mounted on the mounting post 190.

[0041] In this case, during the operation of the strap adjustment mechanism, the knob 110 is rotated in the first direction. The knob 110 pushes the second drive protrusion 320 to rotate through the first drive protrusion 310. The second drive protrusion 320 drives the mounting post 190 to rotate through the bracket 160, so that the swing tooth 510 swings around the mounting post 190 to the unlocked state where it slides with the peripheral wall of the mounting base 120. Correspondingly, the knob 110 is rotated in the opposite direction around the first direction. The knob 110 pushes the swing tooth 510 around the mounting post 190 through the first drive protrusion 310 to the unlocked state where it is separated from the peripheral wall of the mounting base 120 and abuts against the second drive protrusion 320. The swing tooth 510 drives the mounting post 190 to rotate through the second drive protrusion 320 and the bracket 160.

[0042] Of course, in order to ensure that the swing tooth 510 can rotate around the mounting post 190 around its own swing center M, the mounting post 190 is located at the swing center M of the swing tooth 510. More specifically, the mounting post 190 is a cylindrical structure, and the swing center M of the swing tooth 510 is located on the straight line where the axis of the mounting post 190 is located.

[0043] As described above, the oscillating tooth 510 and the first driving protrusion 310 are both located between the end faces of the opposite ends of the second driving protrusion 320. In order to reduce the size of the entire strap adjustment mechanism 10 in the first direction, in a specific embodiment of this application, such as... Figure 13 As shown, the second drive protrusion 320 can be provided with a receiving notch 320a for accommodating the swing tooth 510 and the first drive protrusion 310. More specifically, the receiving notch 320a is recessed along the first direction. Meanwhile, in the rotation direction of the knob 110, the second drive protrusion 320 is provided with opposing first abutment walls 321 and second abutment walls 322. Correspondingly, the receiving notch 320a is located between adjacent first abutment walls 321 and second abutment walls 322 of the second drive protrusion 320. Therefore, in this embodiment, in the first direction, at least a portion of both the swing tooth 510 and the first drive protrusion 310 can be accommodated within the receiving notch 320a.

[0044] Furthermore, when the knob 110 rotates in the forward direction around the first direction, the first drive protrusion 310 can abut against the first abutment wall 321. During the process of the first drive protrusion 310 driving the second drive protrusion 320 to rotate in the forward direction through the first abutment arm, the swing tooth 510 can rotate in the forward direction relative to the mounting base 120 along with the first drive protrusion 310 (and the second drive protrusion 320). Of course, during the aforementioned rotation of the swing tooth 510, since there is a gap between the swing tooth 510 and the peripheral wall of the mounting base 120, the swing tooth 510 may also swing back and forth relative to the first drive protrusion 310 (and the second drive protrusion 320). Of course, the aforementioned back and forth swing of the swing tooth 510 will not interfere with the process of the knob 110 rotating in the forward direction around the first direction.

[0045] Correspondingly, when the knob 110 rotates in the reverse direction around the first direction, the first drive protrusion 310 pushes the swing tooth 510, and the swing tooth 510 abuts against the second abutment wall 322, thereby ensuring that the locking surface 511 of the swing tooth 510 and the peripheral wall of the mounting base 120 are always spaced apart from each other. This also ensures that the swing tooth 510 will not interfere with the process of the knob 110 actively rotating in the forward direction around the first direction, thereby ensuring that the winding base 200 can rotate in the reverse direction around the first direction along with the knob 110.

[0046] Based on the above embodiments, more specifically, the straight line connecting the swing center M of the swing tooth 510 and the rotation center N of the second drive protrusion 320 (i.e., the winding seat 200) is the first straight line L. The locking surface 511 of the swing tooth 510 is located between the first straight line L and the second abutment wall 322. In other words, during the process of the winding seat 200 rotating in the opposite direction with the knob 110, the locking surface 511 of the swing tooth 510 is always located upstream of the aforementioned first straight line L. After the external force of rotation driving acting on the knob 110 is removed, the locking surface 511 of the swing tooth 510 can be matched with the peripheral wall of the mounting base 120 to limit the uncontrolled rotation of the winding seat 200 in the opposite direction and prevent the rope 400 from uncontrollably loosening.

[0047] Additionally, as described above, the swing tooth 510 can swing about its swing center M relative to the knob 110 and the winding seat 200 between the first drive protrusion 310 and the second drive protrusion 320. The swing tooth 510 can be mounted on the knob 110. Considering the assembly sequence of the strap adjustment mechanism 10, in another embodiment of this application, the swing tooth 510 can be mounted on the winding seat 200 or the bracket 160 mentioned below for mounting the winding seat 200.

[0048] More specifically, in this embodiment of the application, a mounting post 190 is provided between the first abutment wall 321 and the second abutment wall 322 of the second driving protrusion 320. The mounting post 190 is fixed relative to the second driving protrusion 320, and as shown... Figure 17 and Figure 18 As shown, the swing tooth 510 is provided with a mounting hole 512. The swing tooth 510 can be sleeved and mounted on the mounting post 190 through the mounting hole 512, thereby allowing the swing tooth 510 to swing relative to the second drive protrusion 320 around the mounting post 190. Both the mounting post 190 and the second drive protrusion 320 can be fixedly disposed on the side of the winding seat 200 facing the knob 110. In another embodiment of this application, the strap adjustment mechanism 10 may further include a bracket 160, and the second drive protrusion 320 can be disposed on the bracket 160. Correspondingly, the winding seat 200 is fixedly connected to the side of the bracket 160 away from the second drive protrusion 320. In this case, the mounting post 190 can be fixedly connected to the side of the bracket 160 where the second drive protrusion 320 is located.

[0049] As described above, during the operation of the strap adjustment mechanism 10 disclosed in this application embodiment, if the external force driving the rotation of the knob 110 is removed, and the strap (and rope 400) is subjected to the expansion effect of the user's head or wrist, the rope 400 will apply a rotational force to the winding seat 200, causing the winding seat 200 to rotate and tend to release the rope 400. At the same time, during this process, the winding seat 200 will drive the swing tooth 510 to swing slightly, so that the locking surface 511 of the swing tooth 510 can be mutually limited with the peripheral wall of the mounting base 120, thereby restricting the uncontrolled rotation of the winding seat 200 and releasing the rope 400.

[0050] As described above, in the above embodiment, after the length of the rope 400 is adjusted, when the user wears the electronic device, the gap between the swing tooth 510 and the peripheral wall of the mounting base 120 may cause the rope 400 and the strap to still have a slight loosening effect, which may also have a slight impact on the wearing effect of a user.

[0051] Therefore, in the strap adjustment mechanism 10 disclosed in this application embodiment, the locking component 500 may further include an elastic element 520, and the elastic element 520 is located on the side of the swing tooth 510 away from the first driving protrusion 310, and the elastic element 520 elastically abuts between the second driving protrusion 320 and the swing tooth 510. In this embodiment, the elastic element 520 is used to drive the locking surface 511 of the swing tooth 510 to contact or adhere to the peripheral wall of the mounting base 120.

[0052] That is, in this embodiment, when the knob 110 is actively rotated relative to the mounting base 120 by the external force of rotational drive, so as to drive the swing tooth 510 to rotate relative to the mounting base 120, the elastic force provided by the elastic element 520 can also be used to ensure that the locking surface 511 of the swing tooth 510 is always in contact or fits against the peripheral wall of the mounting base 120. Of course, in this process, due to the influence of the structure and positional relationship of the locking surface 511, even if the locking surface 511 is in contact with or even fits against the peripheral wall of the mounting base 120, it can still be ensured that the locking surface 511 can stably rotate relative to the mounting base 120 under the drive of the knob 110.

[0053] Specifically, the elastic element 520 can be a compression spring, which can be installed on the surface of the swing tooth 510 adjacent to the locking surface 511. The initial state of the elastic element 520 is determined based on the specific installation position of the elastic element 520 and parameters such as the rotation direction of the knob 110 and the tightening and loosening relationship of the rope 400.

[0054] For example, taking the counterclockwise rotation of the knob 110 around the first direction in the above embodiment as a way to relax the rope 400, in this application, the elastic member 520 can be disposed between the swing tooth 510 and the first abutment wall 321 of the second drive protrusion 320. At the same time, the opposite ends of the elastic member 520 can be bonded and fixed to the swing tooth 510 and the first abutment wall 321 respectively, and the elastic member 520 is in a stretched state, so as to provide the swing tooth 510 with a direction that moves closer to the first abutment wall 321, thereby ensuring that the locking surface 511 of the swing tooth 510 and the peripheral wall of the mounting base 120 always maintain a contact relationship.

[0055] To reduce the installation difficulty of the elastic member 520, in another embodiment of this application, the elastic member 520 can be clamped between the swing tooth 510 and the second abutment wall 322 of the second drive protrusion 320. In this case, the elastic member 520 can be in a compressed state, which also enables the elastic member 520 to provide an elastic force to the swing tooth 510, causing the swing tooth 510 to move towards the first abutment wall 321, thereby ensuring that the locking surface 511 of the swing tooth 510 and the peripheral wall of the mounting base 120 always maintain a contact relationship.

[0056] Based on the above embodiments, in order to improve the assembly stability of the elastic member 520, a limiting hole 323 can be provided on the side of the swing tooth 510 facing the second abutment wall 322 to provide a accommodating function for a portion of the elastic member 520. In another embodiment of this application, to improve the structural reliability of the swing tooth 510, the second driving protrusion 320 can be provided with a limiting hole 323, and a portion of the elastic member 520 can be accommodated within the limiting hole 323. Of course, the specific structural form and size of the limiting hole 323 can be designed according to the shape and size of the elastic member 520, and this is not limited herein.

[0057] As described above, the second driving protrusion 320 is provided with a first abutting wall 321 and a second abutting wall 322, and a receiving notch 320a is formed between the two. The first driving protrusion 310 and the swing tooth 510 can be disposed in the aforementioned receiving notch 320a. In a specific embodiment of this application, the second driving protrusion 320 can be provided with a receiving notch 320a, and correspondingly, the number of the first driving protrusion 310 and the swing tooth 510 is also one.

[0058] To improve the stability of the knob 110 driving the winding base 200, in another embodiment of this application, such as... Figure 1 and Figure 4As shown, in the rotation direction of the knob 110, the second drive protrusion 320 is provided with at least two mutually spaced receiving notches 320a. Each receiving notch 320a is recessed along the first direction. Each receiving notch 320a is provided with a first drive protrusion 310 and a swing tooth 510. Each swing tooth 510 is used to swing between the first drive protrusion 310 and the second drive protrusion 320.

[0059] As described above, the mounting base 120 can be fixed to the device body 20 of the electronic device, and both the knob 110 and the winding seat 200 are mounted on the mounting base 120. To improve the protective effect of the mounting base 120 on the knob 110 and the winding seat 200, and to restrict the movement of the knob 110 and the winding seat 200 relative to the mounting base 120 in the first direction, thereby improving the overall reliability of the strap adjustment mechanism 10, in one embodiment of this application, such as... Figure 2 , Figure 3 , Figure 5 and Figure 9 As shown, the mounting base 120 may include a cylindrical body 121 and a limiting inner edge 122, wherein the winding seat 200 and the locking assembly 500 are both disposed on the inner side of the cylindrical body 121, and the limiting inner edge 122 extends radially from the inner peripheral wall of the cylindrical body 121.

[0060] Based on the above-described structure of the mounting base 120, the knob 110 can be mounted on one side of the limiting inner edge 122, and the winding seat 200 can be mounted on the other side of the limiting inner edge 122, so that the limiting inner edge 122 provides a limiting effect for the knob 110 and the winding seat 200 in the first direction. In another embodiment of this application, the knob 110 can also be sleeved outside the cylinder 121, so that the user can control the strap adjustment mechanism 10 by turning the knob 110. In this case, the mounting base 120 may also include a mounting flange 123, which surrounds and is fixed to the outer periphery of the cylinder 121, thereby enabling the mounting flange 123 to provide a limiting effect for the knob 110 in the first direction.

[0061] Therefore, more specifically, when the strap adjustment mechanism 10 is applied in electronic devices, the mounting flange 123 can be used to assemble the mounting base 120 and the entire strap adjustment mechanism 10 with the device body 20. The mounting flange 123 can achieve a fixed connection with the device body 20 through methods such as clips or connectors, which will not be described in detail here.

[0062] To further improve the stability of the fit between the knob 110 and the cylinder 121 in the first direction, the strap adjustment mechanism 10 may also include a damping ring 700. The damping ring 700 is elastically pressed between the inner peripheral wall of the knob 110 and the outer peripheral wall of the mounting base 120, thereby making the fit between the interlocking knob 110 and the mounting base 120 tighter in the direction perpendicular to the first direction, preventing relative wobbling between the knob 110 and the mounting base 120, which would generate noise. Correspondingly, in the first direction, the damping ring 700 can also provide a damping effect for the knob 110 and the mounting base 120.

[0063] Specifically, the diameter of the damping ring 700 can be designed according to the outer diameter of the mounting base 120 and the inner diameter of the knob 110, so that a self-locking load is generated between the knob 110 and the mounting base 120 after the damping ring 700 is installed. This can also prevent the knob 110 from rotating uncontrollably. In addition, a limiting groove 1211 can be provided on the outer periphery of the cylinder 121 of the mounting base 120, and a part of the damping ring 700 can be inserted into the limiting groove 1211. The limiting groove 1211 can be used to restrict the position of the damping ring 700, preventing the damping ring 700 from moving during the installation and rotation of the knob 110.

[0064] For the winding base 200, in order to ensure a relatively stable engagement with the mounting base 120 in the first direction, in a specific embodiment of this application, the strap adjustment mechanism 10 may include a bracket 160, and the second drive protrusion 320 may be disposed on the bracket 160. In this case, when assembling the winding base 200, in the first direction, the winding base 200 may be located on the side of the limiting inner edge 122 away from the knob 110, and the bracket 160 may be located on the other side of the limiting inner edge 122 facing the knob 110. Furthermore, in this embodiment, the winding base 200 and the bracket 160 are detachably fixedly connected, so that in the first direction, the winding base 200 and the bracket 160 are both limited and engaged with the limiting inner edge 122, thereby ensuring relatively higher assembly stability between the winding base 200 and the mounting base 120.

[0065] Specifically, the winding base 200 and the bracket 160 can also be connected to each other by screws or other connectors, such as... Figure 14 As shown, a second stud 180 is provided on the side of the bracket 160 opposite to the second drive protrusion 320. Correspondingly, a corresponding opening is provided on the winding seat 200, and a screw passes through the through-hole thread of the winding seat 200 and is connected to the second stud 180, so that the winding seat 200 and the bracket 160 form a detachable fixed connection in the first direction. In this case, the maintenance convenience of the strap adjustment mechanism 10 is also improved. Similarly, the number of second studs 180 can be multiple, such as... Figure 14 As shown, the number of second studs 180 can be three, and they are evenly and spaced apart around the first direction.

[0066] As described above, during the rotation of the knob 110, the winding seat 200 can tighten or loosen the rope 400 by rotating. To prevent the rope 400 from being tightened and loosened without restriction, which would make the adjustment difficult for the user, the strap adjustment mechanism 10 disclosed in this application also includes a limiting component 600 for limiting the rotation range of the winding seat 200. The limiting component 600 restricts the tightening and loosening range of the strap, thereby reducing the difficulty for the user in tightening and loosening the rope 400 when wearing an electronic device including the strap adjustment mechanism 10 disclosed in the above-described embodiments of this application.

[0067] Specifically, the conventional size range of the wearing position of the electronic device can be appropriately expanded, and based on the length adjustment range of the cord 400 determined by the aforementioned process, as well as the transmission relationship between the knob 110 and the winding seat 200, the number of rotations of the knob 110 and the winding seat 200 can be determined accordingly. By utilizing the cooperation between the limiting component 600 and at least one of the knob 110, the locking component 500 and the winding seat 200, the purpose of limiting the rotation range of the winding seat 200 can be ultimately achieved.

[0068] It should be noted that, taking the engagement of the limiting component 600 and the winding seat 200 as an example, in this application, the limiting component 600 does not always engage with the winding seat 200. Instead, the winding seat 200 only engages with the limiting component 600 after continuously rotating beyond a preset angle range relative to the limiting component 600 in the first direction (both forward and reverse rotation). At this point, the winding seat 200 can only rotate in the opposite direction relative to the limiting component 600, that is, it rotates again around the first direction in both the reverse and forward directions. The aforementioned preset angle range is the rotation range of the winding seat 200 restricted by the limiting component 600. Furthermore, without considering the angle occupied by the limiting component 600 in the rotation direction of the winding seat 200, the aforementioned preset angle can be any angle value greater than 0°. Additionally, the aforementioned preset angle can also be a value greater than 360°. In this case, it means that the knob 110 can drive the winding seat 200 to rotate more than one full revolution.

[0069] In this embodiment, the limiting component 600 can cooperate with the winding seat 200 to limit the rotation range of the winding seat 200. Furthermore, as described above, the specific range of rotation angles that the limiting component 600 restricts for the winding seat 200 can be flexibly determined according to requirements. Therefore, in one specific embodiment of this application, the limiting component 600 can restrict the winding seat 200 to reciprocate only within one full revolution.

[0070] In detail, such as Figure 15 and Figure 16 As shown, in the strap adjustment mechanism 10 disclosed in this application embodiment, the winding seat 200 includes a seat body 210 and a limiting structure 220 connected to each other. During the assembly of the strap adjustment mechanism 10, the seat body 210 is fixedly connected to the end of the rope 400, and when the knob 110 rotates around the first direction, the knob 110 can drive the seat body 210 to rotate. As mentioned above, the limiting structure 220 is connected to the seat body 210. Therefore, during the rotation of the seat body 210, the limiting structure 220 can rotate with the seat body 210.

[0071] Based on the above structure, in order to enable the limiting component 600 to limit the rotation angle range of the winding seat 200, in this embodiment of the application, the limiting component 600 includes a stop structure 610 disposed on the rotation path of the limiting structure 220. Thus, during the operation of the strap adjustment mechanism 10, once the seat 210 drives the limiting structure 220 to rotate to abut against the stop structure 610, the stop structure 610 can limit the rotation of the limiting structure 220 to limit the rotation of the seat 210.

[0072] As described above, during the rotation of the knob 110, the limiting structure 220 can rotate along with the base 210. Therefore, the rotation path of the limiting structure 220 is a circular arc. Furthermore, by placing the stop structure 610 on the aforementioned circular arc and keeping the stop structure 610 in a fixed state, the stop structure 610 can be used to restrict the rotation process of the limiting structure 220, thereby preventing the limiting structure 220 from continuing to rotate beyond the stop structure 610.

[0073] Of course, when the limiting structure 220 rotates with the seat 210 in the first direction forward (or reverse) until it abuts against the stop structure 610, the stop structure 610 can restrict the limiting structure 220 from continuing to rotate in the first direction forward (or reverse). However, at this time, the limiting structure 220 still has the ability to rotate in the first direction reverse (or forward).

[0074] Accordingly, in the above embodiments of this application, since the stop structure 610 directly engages with the limiting structure 220, the rotation range of the limiting structure 220 is greater than 0° and less than 360°. Of course, the specific rotation range of the limiting structure 220 is determined by the specific structural form and dimensions of the limiting structure 220 and the stop structure 610, and this document does not limit it.

[0075] Specifically, in this embodiment, both the limiting structure 220 and the stop structure 610 can be limiting blocks. In this case, by making the distance between the limiting structure 220 and the stop structure 610 and the rotation center N of the winding seat 200 equal or equivalent, the stop structure 610 can be set on the rotation path of the limiting structure 220. Thus, during the rotation of the limiting structure 220 with the seat 210 relative to the stop structure 610, the stop structure 610 can limit the rotation range of the limiting structure 220 to less than °.

[0076] More specifically, in the above embodiments, the limiting component 600 can restrict the seat 210 to reciprocate within a preset angle A1 about the first direction, and A1 = 360° - α - Θ; where α is the angle value occupied by the limiting structure 220 about the first direction, and Θ is the angle value occupied by the stopping structure 610 about the first direction.

[0077] In order to appropriately expand the rotation range of the seat 210, in another embodiment of this application, the limiting component 600 can also limit the rotation range of the seat 210 to an angle greater than one full circle and less than two full circles. That is, the limiting component 600 is used to limit the rotation angle of the seat 210 to be greater than 360° and less than 720°.

[0078] In detail, in the embodiments of this application, the winding seat 200 may still include a seat body 210 and a limiting structure 220 connected to each other, wherein the seat body 210 is fixedly connected to the end of the rope 400, and when the knob 110 rotates about the first direction, the knob 110 drives the seat body 210 to rotate, and the limiting structure 220 rotates with the seat body 210.

[0079] Unlike the embodiments described above, in this embodiment, the limiting component 600 includes a stop structure 610 and a first limiting member 620. The first limiting member 620 is rotatably disposed between the base 210 and the stop structure 610 about a first direction, and is located on the rotation path of the limiting structure 220. That is, in this embodiment, the limiting structure 220 can first form a limiting engagement with the first limiting member 620, and then the limiting structure 220 and the first limiting member 620 as a whole can engage with the stop structure 610 for limiting engagement. This allows the relative rotation angle between the limiting structure 220 and the stop structure 610 to be greater than 360°.

[0080] Based on the above structure, when the knob 110 rotates around the first direction, the seat 210 can drive the limiting structure 220 to rotate until it abuts against the first limiting member 620. Then, the limiting structure 220 pushes the first limiting member 620 to rotate with the seat 210. When the first limiting member 620 further rotates to abut against the stop structure 610, the stop structure 610 restricts the rotation of the limiting structure 220 that abuts against the first limiting member 620 by restricting the rotation of the first limiting member 620, thereby restricting the rotation of the seat 210.

[0081] Optionally, in this embodiment of the application, the limiting structure 220, the first limiting member 620, and the stop structure 610 are all limiting blocks. In this case, the limiting component 600 can restrict the seat 210 from reciprocating within a preset angle A2 around the first direction, where A2 = 360° + 360° - α - β - β - Θ; where α is the angle value occupied by the limiting structure 220 around the first direction, Θ is the angle value occupied by the stop structure 610 around the first direction, and β is the angle value occupied by the first limiting member 620 around the first direction.

[0082] In other embodiments of this application, the angular limitation range of the limiting component 600 on the seat 210 can be further increased. Specifically, the rotatable angle of the winding seat 200 around the first direction can be increased by making the limiting component 600 include a plurality of first limiting members 620.

[0083] When there are multiple first limiting members 620, the multiple first limiting members 620 cooperate sequentially to form a chain structure. At the same time, the multiple first limiting members 620 are rotatably disposed between the seat 210 and the stop structure 610 around a first direction. In the process of the seat 210 driving the limiting structure 220 to rotate relative to the stop structure 610, the limiting structure 220 drives the multiple first limiting members 620 to rotate with the seat 210 in sequence. Finally, the one of the multiple first limiting members 620 located at the downstream end of the chain structure directly engages with the stop structure 610 for limiting, thereby enabling the limiting component 600 to achieve the purpose of limiting the rotation range of the seat 210.

[0084] More specifically, in one embodiment of this application, such as Figure 19 and Figure 20 As shown, the first limiting member 620 includes a first limiting portion 621 for abutting against the limiting structure 220. That is, the portion of the first limiting member 620 that directly abuts against and limits the limiting structure 220 in the direction around the first direction is the first limiting portion 621. Optionally, the first limiting member 620 may also abut against the stop structure 610 through the other side of the first limiting portion 621.

[0085] Of course, the first limiting member 620 may also include other structures. For example, the first limiting member 620 may also include a mounting ring 622, and the first limiting part 621 may be fixedly connected to the side of the mounting ring 622 facing the stop structure 610. Alternatively, the first limiting member 620 may only include the first limiting part 621, and the first limiting part 621 may be a block structure. The winding seat 200 may be provided with a guide groove. By inserting the first limiting part 621 into the guide groove of the winding seat 200, after the limiting structure 220 abuts against the first limiting part 621, the limiting structure 220 can drive the first limiting part 621 to rotate relative to the stop structure 610 until the first limiting part 621 abuts against the stop structure 610.

[0086] Therefore, in the above embodiments of this application, the first limiting part 621, the limiting structure 220, and the stop structure 610 are all limiting blocks. Based on the above structure, during the rotation of the knob 110 around the first direction, the seat 210 can drive the limiting structure 220 to rotate until it abuts against the first limiting part 621 of the first limiting member 620. Through the abutment and limiting of the limiting structure 220 and the first limiting part 621, the first limiting member 620 rotates with the seat 210 until the first limiting part 621 rotates to abut against the stop structure 610. Through the abutment and limiting of the first limiting part 621 and the stop structure 610, the rotation of the first limiting member 620 is restricted, thereby restricting the rotation of the seat 210.

[0087] As described above, the limiting component 600 can have multiple first limiting members 620 to increase the rotation angle range of the seat 210 relative to the stop structure 610. To more clearly illustrate the aforementioned technical solution, in a specific embodiment of this application, the limiting component 600 may also include a second limiting member 630. Broadly speaking, in the limiting component 600, the function and assembly method of the second limiting member 630 are the same as or corresponding to the function and assembly method of the first limiting member 620. Therefore, from another perspective, the first limiting member 620 and the second limiting member 630 in the embodiments of this application can also be regarded as the limiting component 600 including two first limiting members 620, that is, the rotation angle range of the seat 210 is increased by increasing the number of first limiting members 620 as mentioned in the above embodiments.

[0088] In detail, the second limiting member 630 is rotatably disposed between the first limiting member 620 and the stop structure 610 about a first direction, and the second limiting member 630 is disposed on the rotation path of the first limiting member 620. Specifically, the second limiting member 630 may also include a limiting stop. Based on this, when the knob 110 rotates around the first direction, the seat 210 drives the limiting structure 220 to rotate until it abuts against the first limiting member 620. The limiting structure 220 pushes the first limiting member 620 to rotate with the seat 210, causing the first limiting member 620 to rotate until it abuts against the second limiting member 630. The first limiting member 620 pushes the second limiting member 630 to rotate with the seat 210. When the second limiting member 630 rotates to abut against the stop structure 610, the first limiting member 620 abuts against the stop structure 610 through the second limiting member 630. The stop structure 610 restricts the rotation of the first limiting member 620 abutting against the second limiting member 630 by restricting the rotation of the second limiting member 630, thereby restricting the rotation of the seat 210.

[0089] In the above embodiments, the stop structure 610 can be fixed relative to the mounting base 120. To reduce the design complexity of the stop structure 610 and the entire limiting assembly 600, in another embodiment of this application, the strap adjustment mechanism 10 may further include a base 130, which is fixedly connected to the mounting base 120. Furthermore, the base 130 is stacked along a first direction on the side of the winding seat 200 facing away from the mounting base 120, and the stop structure 610 is fixed to the side of the base 130 near the winding seat 200.

[0090] Specifically, such as Figure 12 As shown, the edge of the base 130 may be provided with a fixing lug 170. Based on this, the base 130 can be fixedly connected to the side of the mounting base 120 where the winding seat 200 is located by means of screws or other connecting parts. More specifically, the mounting base 120 includes a mounting flange 123, wherein the side of the mounting flange 123 facing away from the knob 110 may be provided with a first stud 124. During the assembly of the base 130 and the mounting base 120, a screw passing through the fixing lug 170 and screwed into the first stud 124 can be used to form a reliable fixed connection between the mounting base 120 and the base 130. Of course, there can be multiple first studs 124 and fixing lugs 170. Figure 10 and Figure 12 As shown, there can be three first studs 124 and three fixing ears 170. The three first studs 124 are evenly and spaced on the outer periphery of the cylinder 121 and correspond one-to-one with the three fixing ears 170.

[0091] As described above, the rope 400 can be tightened and loosened by the winding seat 200 through winding. The winding seat 200 includes a seat body 210 and a limiting structure 220. Further, the seat body 210 may include a winding drum 211. One end of the rope 400 can be fixed to the winding drum 211 by welding or other means. When the knob 110 is rotated in the first direction, the winding drum 211 can be driven to rotate, so that the rope 400 can be wound and tightened on the winding drum 211, or the rope 400 wound on the winding drum 211 can be released.

[0092] To improve the winding effect and reliability of the winding seat 200 on the rope 400, and to prevent the rope 400 wound on the winding drum 211 from uncontrolled loosening, in a specific embodiment of this application, such as Figure 14 and Figure 15 As shown, the base body 210 includes a winding drum 211, a base plate 212, a cable post 213, and a receiving cylinder 214. The receiving cylinder 214 is disposed inside the winding drum 211, and both the receiving cylinder 214 and the winding drum 211 are fixed to the same side of the base plate 212. The cable post 213 is located between the receiving cylinder 214 and the winding drum 211. The end of the rope 400 is fixed to the cable post 213, and the winding drum 211 is provided with a threading hole 2111 through which the rope 400 passes to the outer peripheral wall of the winding drum 211.

[0093] Based on the above structure, such as Figure 2 and Figure 3 As shown, and in combination Figures 11-16 In the first direction, the first limiting member 620 is housed within the receiving cylinder 214, and the limiting structure 220 is disposed on the side of the receiving cylinder 214 facing the first limiting member 620. Thus, when the knob 110 is rotated around the first direction, the rotation of the winding drum 211 can drive the limiting structure 220 to rotate together, and the rope 400 is wound around the winding drum 211 or the winding drum 211 releases the rope 400 wound on the winding drum 211. At the same time, after the limiting structure 220 rotates through a preset angle with the winding drum 211, the limiting structure 220 can be restricted by the first limiting member 620, thereby restricting the winding drum 211 from continuing to rotate.

[0094] In the embodiments of this application, the rope 400 can be made of fabric or metal material, and the rope 400 can be a rope-like structure, or the rope 400 can be a cable-like structure. In a specific embodiment of this application, in order to improve the structural reliability of the rope 400, the rope 400 can be a metal cable.

[0095] In one specific embodiment of this application, the bollard 213 and the winding drum 211 are spaced apart from each other. By welding or other means, the end of the rope 400 can be fixedly connected to the bollard 213. During the process of the base plate 212 driving the winding drum 211 to rotate, the rope 400 is wound around the winding drum 211, or the rope 400 wound on the winding drum 211 can be released.

[0096] In another embodiment of this application, such as Figure 15 As shown, the bollard 213 is rod-shaped and extends along a first direction. One end of the bollard 213 is fixedly connected to the base plate 212. The rope 400 may have a loop, allowing the rope 400 to be looped onto the bollard 213, thus forming a connection between the rope 400 and the bollard 213. When the winding drum 211 rotates, the bollard 213 drives the rope 400 to rotate, causing the rope 400 to tighten and loosen. Furthermore, in this application, the inner receiving cylinder 214 provided on the winding drum 211 also provides a receiving function for the limiting component 600, thereby improving the space utilization within the strap adjustment mechanism 10 and miniaturizing the entire strap adjustment mechanism 10.

[0097] In addition, in the above embodiments, the mounting base 120 may include a cylindrical body 121, and the winding seat 200 may be disposed inside the cylindrical body 121. More specifically, in the first direction, the cylindrical body 121 is located on the side of the mounting flange 123 facing the knob 110. In order to improve the protective effect of the cylindrical body 121 on the winding seat 200, in another embodiment of this application, the cylindrical body 121 may extend to the opposite sides of the mounting flange 123. Based on this, in order to prevent the cylindrical body 121 from obstructing the rope 400 from passing through the inside of the winding drum 211, the cylindrical body 121 may be provided with a first clearance notch 1212, and the first clearance notch 1212 is opposite to the threading hole 2111 of the winding drum 211.

[0098] Furthermore, in the above embodiments, a base 130 may also be included. The base 130 may be a plate-shaped structure or a cylindrical structure, so that it is sleeved on the winding seat 200 from the end opposite to the mounting seat 120 in the first direction. In this case, in order to ensure that the strap adjustment mechanism 10 can properly cooperate with the strap of the electronic device, corresponding holes need to be provided on the base 130, specifically as follows: Figure 11 The second clearance notch 131 shown is opposite to the thread hole 2111 of the winding spool 211.

[0099] Additionally, electronic devices may be equipped with straps made of relatively soft materials such as fabric. In this case, the straps can be worn over the rope 400. Of course, to some extent, the rope 400 can also be considered as a strap.

[0100] As described above, both the knob 110 and the winding seat 200 can rotate relative to the mounting base 120, and the rotation axes of the knob 110 and the winding seat 200 are collinear. In order to improve the stability of the rotational engagement relationship between the two, as described above, the cylinder 121 of the mounting base 120 can be used to provide a limiting effect for the two in the direction perpendicular to the first direction.

[0101] To further improve the stability of the rotational engagement between the knob 110 and the winding seat 200, the strap adjustment mechanism 10 may optionally include a base 130 and a retaining ring 150, wherein the base 130 is fixedly connected to the mounting base 120, and the base 130 is stacked along the first direction on the side of the winding seat 200 facing away from the mounting base 120; Meanwhile, in the embodiments of this application, as... Figure 8 As shown, the knob 110 has a positioning rod 140 on the side facing the winding base 200, and as... Figure 5 As shown, the positioning rod 140 passes through the winding seat 200 and the base 130, thereby enabling the positioning rod 140 to serve as a rotation axis for the winding seat 200 and the base 130, which significantly improves the stability of the two when rotating relative to the mounting base 120. Of course, to prevent the winding seat 200 and the base 130 from uncontrollably detaching from the positioning rod 140, in this embodiment, as shown... Figure 5 As shown, the retaining ring 150 is mounted on the end of the positioning rod 140 away from the knob 110 to restrict the knob 110, the winding seat 200 and the base 130 from separating from each other in a first direction.

[0102] Specifically, the positioning rod 140 and the knob 110 can be formed in one piece, which can improve the reliability of the connection between the two. At the same time, based on parameters such as the diameter of the positioning post, the size of the opening in the winding seat 200 and the base 130 for cooperating with the positioning rod 140 is designed accordingly to ensure that the winding seat 200 and the base 130 can both be inserted into the positioning rod 140, and to ensure that the base 130 and the positioning rod 140 have the ability to rotate relative to each other.

[0103] Based on the strap adjustment mechanism 10 disclosed in any of the above embodiments, such as Figure 21 As shown, this application embodiment also provides an electronic device, which includes a device body 20 and any of the above-mentioned strap adjustment mechanisms 10, wherein the rope 400 is connected between the device body 20 and the winding seat 200.

[0104] During the use of the electronic device, the tightness of the rope 400 can be adjusted by the strap adjustment mechanism 10 to change the size of the space enclosed by the rope 400 and the device body 20, so that different users can wear the electronic device more comfortably.

[0105] The electronic device also includes a strap, with a rope 400 threaded through it to adjust its length. A strap adjustment mechanism 10 is located on one side of the strap. The rope 400, located outside the strap adjustment mechanism 10, is connected to and threaded through the strap. By rotating the knob 110, the winding seat 200 is rotated to tighten or loosen the rope 400, causing the length of the rope 400 extending out of the strap adjustment mechanism 10 to shorten or lengthen accordingly, thereby adjusting the length of the strap connected to the rope 400 located outside the strap adjustment mechanism 10.

[0106] In the electronic device of this application, a cord 400 located outside the strap adjustment mechanism 10 extends from one side of the winding seat 200, allowing the knob 110 to be positioned at the end of the strap away from the center. The cord 400 can also extend from the right side of the winding seat 200, ensuring that all cords 400 exposed on the strap adjustment mechanism 10 are located on one side of the knob 110. The knob 110 may be located at the end of the cord 400 or at the end of the strap. That is, when the user wears the electronic device, the knob 110 and / or the strap adjustment mechanism 10 are positioned close to the user's ear. Placing the knob 110 near the end of the strap instead of in the middle ensures that the user does not need to raise their arm and reach behind their head to operate the knob 110, which is more ergonomic. It also avoids the discomfort caused to the user by the knob 110 and strap adjustment mechanism 10 being located behind the head when using the device in a reclining or lying position.

[0107] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0108] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the above-described embodiments. The above-described embodiments are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A strap adjustment mechanism, characterized in that, Includes a knob (110), a mounting base (120), a winding base (200), a rope (400), and a locking assembly (500) for preventing the rope (400) from becoming loose, wherein; The knob (110) is mounted on the mounting base (120), and the mounting base (120) and the winding base (200) are stacked along the first direction. The knob (110) and the winding base (200) are both rotatably connected to the mounting base (120), and the winding base (200) is fixedly connected to the end of the rope (400). The locking assembly (500) includes a swing tooth (510), the knob (110) is provided with a first drive protrusion (310), and the winding seat (200) is provided with a second drive protrusion (320). In the rotation direction of the knob (110), the swing tooth (510) is sandwiched between the first drive protrusion (310) and the second drive protrusion (320), and the swing tooth (510) can swing between the first drive protrusion (310) and the second drive protrusion (320). One end of the swing tooth (510) is provided with a locking surface (511) for limiting and cooperating with the peripheral wall of the mounting seat (120). The swing tooth (510) has a locked state and an unlocked state, and when the knob (110) is subjected to a rotational driving force, the swing tooth (510) switches from the locked state to the unlocked state. When the oscillating tooth (510) is in the locked state, the locking surface (511) of the oscillating tooth (510) abuts against the peripheral wall of the mounting base (120) to restrict the winding seat (200) from rotating relative to the mounting base (120). When the swing tooth (510) is in the unlocked state, the locking surface (511) of the swing tooth (510) can move relative to the peripheral wall of the mounting base (120), so that the winding base (200) can rotate relative to the mounting base (120).

2. The strap adjustment mechanism according to claim 1, characterized in that, When the knob (110) is subjected to a rotational driving force and rotates in the positive direction around the first direction, the knob (110) drives the second driving protrusion (320) to rotate through the first driving protrusion (310), and the second driving protrusion (320) drives the winding seat (200) to rotate in the positive direction around the first direction to tighten the rope (400), and the second driving protrusion (320) also drives the swing tooth (510) to rotate in the positive direction around the first direction; When the knob (110) is subjected to a rotational driving force and rotates in the opposite direction around the first direction, the knob (110) pushes the swing tooth (510) through the first driving protrusion (310), and the locking surface (511) of the swing tooth (510) is spaced apart from the peripheral wall of the mounting base (120). The swing tooth (510) drives the second driving protrusion (320) to rotate, and the second driving protrusion (320) drives the winding seat (200) to rotate in the opposite direction around the first direction to loosen the rope (400). When the external force acting on the knob (110) is removed, the locking surface (511) of the swing tooth (510) abuts against the peripheral wall of the mounting base (120) to restrict the winding seat (200) from driving the second driving protrusion (320) to rotate in the opposite direction around the first direction.

3. The strap adjustment mechanism according to claim 1, characterized in that, The strap adjustment mechanism further includes a bracket (160) and a mounting post (190) fixed on the bracket (160). The second drive protrusion (320) and the mounting post (190) are spaced apart on the same side of the bracket (160), and the swing tooth (510) is sleeved on the mounting post (190). Rotating the knob (110) in the first direction causes the knob (110) to push the second drive protrusion (320) to rotate via the first drive protrusion (310). The second drive protrusion (320) then drives the mounting post (190) to rotate via the bracket (160), causing the swing tooth (510) to swing around the mounting post (190) to the unlocked state where it slides against the peripheral wall of the mounting base (120). Rotate the knob (110) in the opposite direction around the first direction. The knob (110) pushes the swing tooth (510) around the mounting post (190) through the first drive protrusion (310) to the unlocked state where it is separated from the peripheral wall of the mounting base (120) and abuts against the second drive protrusion (320). The swing tooth (510) drives the mounting post (190) to rotate through the second drive protrusion (320) and the bracket (160).

4. The strap adjustment mechanism according to any one of claims 1 to 3, characterized in that, The second drive protrusion (320) is provided with a receiving notch (320a) for accommodating the swing tooth (510) and the first drive protrusion (310), the receiving notch (320a) being located between the adjacent first abutment wall (321) and second abutment wall (322) of the second drive protrusion (320); When the knob (110) is rotated in the forward direction around the first direction, the first drive protrusion (310) abuts against the first abutment wall (321), and when the knob (110) is rotated in the reverse direction around the first direction, the first drive protrusion (310) pushes the swing tooth (510), causing the swing tooth (510) to abut against the second abutment wall (322); the straight line connecting the swing center (M) of the swing tooth (510) and the rotation center (N) of the second drive protrusion (320) is the first straight line (L), and the locking surface (511) of the swing tooth (510) is located between the first straight line (L) and the second abutment wall (322); and / or The locking surface (511) of the swing tooth (510) is an arc-shaped surface extending along the rotation direction of the knob (110).

5. The strap adjustment mechanism according to claim 1, characterized in that, The locking assembly (500) further includes an elastic element (520), which is located on the side of the swing tooth (510) away from the first drive protrusion (310) and elastically abuts between the second drive protrusion (320) and the swing tooth (510). The elastic element (520) is used to drive the locking surface (511) of the swing tooth (510) to contact or adhere to the peripheral wall of the mounting base (120).

6. The strap adjustment mechanism according to claim 1, characterized in that, The strap adjustment mechanism further includes a limiting component (600) for limiting the rotation range of the winding seat (200). The winding seat (200) includes a seat body (210) and a limiting structure (220) connected to each other. The seat body (210) is fixedly connected to the end of the rope (400). When the knob (110) is rotated about the first direction, the knob (110) drives the seat body (210) to rotate, and the limiting structure (220) rotates with the seat body (210). The limiting component (600) includes a stop structure (610) disposed on the rotation path of the limiting structure (220). The seat (210) drives the limiting structure (220) to rotate until it abuts against the stop structure (610). The stop structure (610) restricts the rotation of the limiting structure (220) to restrict the rotation of the seat (210).

7. The strap adjustment mechanism according to claim 1, characterized in that, The strap adjustment mechanism further includes a limiting component (600) for limiting the rotation range of the winding seat (200). The winding seat (200) includes a seat body (210) and a limiting structure (220) connected to each other. The seat body (210) is fixedly connected to the end of the rope (400). When the knob (110) is rotated about the first direction, the knob (110) drives the seat body (210) to rotate, and the limiting structure (220) rotates with the seat body (210). The limiting component (600) includes a stop structure (610) and a first limiting member (620). The first limiting member (620) is rotatably disposed between the seat (210) and the stop structure (610) about the first direction, and the first limiting member (620) is disposed on the rotation path of the limiting structure (220). When the knob (110) rotates around the first direction, the seat (210) drives the limiting structure (220) to rotate until it abuts against the first limiting member (620). The limiting structure (220) pushes the first limiting member (620) to rotate with the seat (210). When the first limiting member (620) rotates to abut against the stop structure (610), the stop structure (610) restricts the rotation of the limiting structure (220) abutting against the first limiting member (620) by restricting the rotation of the first limiting member (620), thereby restricting the rotation of the seat (210).

8. The strap adjustment mechanism according to claim 7, characterized in that, The first limiting member (620) includes a first limiting portion (621) for abutting against the limiting structure (220): The first limiting part (621), the limiting structure (220), and the stop structure (610) are all limiting blocks. The seat (210) drives the limiting structure (220) to rotate until it abuts against the first limiting part (621) of the first limiting member (620). Through the abutment of the limiting structure (220) and the first limiting part (621), the first limiting member (620) rotates with the seat (210) until the first limiting part (621) rotates to abut against the stop structure (610). Through the abutment of the first limiting part (621) and the stop structure (610), the rotation of the first limiting member (620) is restricted, thereby restricting the rotation of the seat (210).

9. The strap adjustment mechanism according to claim 7 or 8, wherein the limiting component (600) further comprises a second limiting member (630), the second limiting member (630) being rotatably disposed between the first limiting member (620) and the stop structure (610) about the first direction, and the second limiting member (630) being disposed on the rotation path of the first limiting member (620): When the knob (110) rotates around the first direction, the seat (210) drives the limiting structure (220) to rotate until it abuts against the first limiting member (620). The limiting structure (220) pushes the first limiting member (620) to rotate with the seat (210), causing the first limiting member (620) to rotate until it abuts against the second limiting member (630). The first limiting member (620) pushes the second limiting member (630) to rotate with the seat (210). When the seat (210) rotates, and when the second limiting member (630) rotates to abut against the stop structure (610), the first limiting member (620) abuts against the stop structure (610) through the second limiting member (630). The stop structure (610) restricts the rotation of the first limiting member (620) abutting against the second limiting member (630) by restricting the rotation of the second limiting member (630), thereby restricting the rotation of the seat (210).

10. The strap adjustment mechanism according to claim 7 or 8 further includes a base (130), wherein the base (130) is fixedly connected to the mounting seat (120), the base (130) is stacked along the first direction on the side of the winding seat (200) away from the mounting seat (120), and the stop structure (610) is fixed to the side of the base (130) near the winding seat (200).

11. The strap adjustment mechanism according to claim 10, characterized in that, The base (210) includes a winding cylinder (211), a base plate (212), a cable post (213), and a receiving cylinder (214). The receiving cylinder (214) is disposed inside the winding cylinder (211), and the receiving cylinder (214) and the winding cylinder (211) are both fixed to the same side of the base plate (212). The cable post (213) is located between the receiving cylinder (214) and the winding cylinder (211). The end of the rope (400) is fixed to the cable post (213), and the winding cylinder (211) is provided with a threading hole (2111). The rope (400) passes through the threading hole (2111) to be wound around the outer peripheral wall of the winding cylinder (211). In the first direction, the first limiting member (620) is housed within the receiving cylinder (214), and the limiting structure (220) is disposed on the side of the receiving cylinder (214) facing the first limiting member (620).

12. The strap adjustment mechanism according to claim 1, characterized in that, It also includes a base (130) and a retaining ring (150), the base (130) being fixedly connected to the mounting base (120), and the base (130) being stacked along the first direction on the side of the winding seat (200) away from the mounting base (120); The knob (110) is provided with a positioning rod (140) on the side facing the winding seat (200). The positioning rod (140) passes through the winding seat (200) and the base (130), and the retaining ring (150) is installed at the end of the positioning rod (140) away from the knob (110) to restrict the knob (110), the winding seat (200) and the base (130) from separating from each other in the first direction.

13. An electronic device, characterized in that, Includes a device body (20) and a strap adjustment mechanism (10) as described in any one of claims 1-12, wherein the rope (400) is connected between the device body (20) and the winding seat (200).

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