CN107388001A - A kind of adjusting means, adjustable bandage and wearable device - Google Patents

Abstract

The embodiment of the invention discloses an adjustment device, an adjustable strap and a wearable device. The adjustment device includes: a gear, a clutch assembly, a one-way rotation assembly, and an adjustment wheel; Tightening wheel, the locking wheel includes locking teeth; the clutch assembly includes the clutch shaft and the elastic body connected with the clutch shaft; the one-way rotation assembly is provided with an accommodation hole, the locking wheel is located in the accommodation hole, the clutch assembly and the one-way The rotating assembly is connected, wherein, the clutch shaft can do linear reciprocating motion relative to the one-way rotating assembly; the adjusting part is provided on the adjusting wheel, and the adjusting wheel is connected with the clutch shaft through the adjusting part; when the adjusting wheel is in the first position, the adjusting part moves along the clutch shaft Apply downward pressure in the direction of the axis, so that the clutch shaft extends into the accommodation hole and into the tooth groove of the locking tooth, and the gear can be driven to rotate in one direction by rotating the adjustment wheel; when the adjustment wheel is in the second position, the clutch shaft is in the elastic Under the action of the restoring force of the body, the gear is released from the slot of the locking tooth, and the gear can rotate in both directions.

Description

Adjusting device, adjustable strap and wearable device

technical field

Embodiments of the present invention belong to the technical field of wearable devices, and in particular, relate to an adjustment device, an adjustable strap and wearable devices.

Background technique

At present, the adjustment device in the used strap products has a single function and a complicated structure when adjusting, and only has the function of adjustment, and no locking function is provided.

In order to realize the tightness of the locking strap after the adjustment is completed, the strap products in the prior art need to be provided with an adjustment device and a locking mechanism at the same time, which not only increases the cost of the product, but also increases the user's ability to use it during use. In the process, two parts need to be operated, and the operation process is complicated. At the same time, it is very inconvenient to adjust the tightness of the straps in the prior art. Either it can only be adjusted little by little, which wastes the user's time, or it can only be adjusted roughly, and the tightness is either too loose or too tight. , the comfort of the user decreases when wearing it.

Contents of the invention

In view of this, the embodiments of the present invention provide an adjustment device, an adjustable strap and a wearable device, which provide a one-way locking function while providing an adjustable function.

In order to solve the technical problems in the prior art, an embodiment of the present invention provides an adjustment device, including: a gear, a clutch assembly, a one-way rotation assembly, and an adjustment wheel, wherein,

A locking wheel is provided on one side of the gear, and the locking wheel includes locking teeth;

The clutch assembly includes a clutch shaft and an elastic body connected to the clutch shaft;

An accommodating hole is provided on the one-way rotating assembly, the locking wheel is located in the accommodating hole, and the clutch assembly is connected with the one-way rotating assembly, wherein the clutch shaft can be opposite to the one-way rotating assembly. Make linear reciprocating motion to the rotating component;

An adjustment part is provided on the adjustment wheel, and the adjustment wheel is connected with the clutch shaft through the adjustment part;

When the adjusting wheel is in the first position, the adjusting part exerts a downward force along the axial direction of the clutch shaft, so that the clutch shaft extends into the accommodating hole and into the teeth of the locking teeth. Groove, the elastic body is deformed, and the gear is driven to rotate in one direction by rotating the adjusting wheel;

When the adjusting wheel is in the second position, the clutch shaft is disengaged from the tooth slot of the locking tooth under the action of the restoring force of the elastic body, and the gear can rotate in both directions.

Optionally, the one-way rotation assembly includes a one-way coupling gear and an internal gear meshing with the one-way coupling gear;

The one-way coupling gear is provided with the accommodation hole;

The one-way coupling gear is provided with a stepped hole that runs through the gear wall of the one-way coupling gear and whose axis is perpendicular to the axle of the one-way coupling gear, and the clutch assembly is placed in the stepped hole.

Optionally, the adjustment part includes a first contact part and the second contact part, and the distance between the first contact part and the second contact part is not equal to the axis of the adjustment wheel, and the distance between the first contact part and the second contact part is smooth Transition connection;

When the adjusting hand wheel is in the first position, the first contact portion is connected to the clutch shaft and exerts a downward force along the axial direction of the clutch shaft;

When the adjustment handwheel is converted from the first position to the second position, the process of the first contact part, the smooth transition part to the second contact part, the clutch shaft is restored by the elastic body Under the action of a force, it escapes from the tooth groove of the locking gear and connects with the second contact portion.

Optionally, the clutch shaft includes three sections, the diameters of the first section, the second section and the third section are gradually reduced;

The elastic body is a spring, and the spring is sheathed in the second section. One end of the spring is in contact with the first section, and the other end is in contact with the stepped surface of the stepped hole.

Optionally, the one-way coupling gear includes a first support arm and an elastic second support arm, one end of the first support arm is connected to the wheel cylindrical surface of the one-way coupling gear, and the second One end of the support arm is connected to the other end of the first support arm, and the other end of the second support arm is provided with coupling teeth;

The one-way coupling gear meshes with the internal gear through the coupling teeth.

Optionally, a bearing groove is provided on the side wall of the opening of the accommodating hole close to the side of the gear;

The end of the locking wheel away from the adjusting wheel is sheathed with a first washer;

Wherein, the first washer is in contact with the bearing groove.

Optionally, a bearing boss is provided on the side wall of the opening of the accommodating hole near the side of the adjustment wheel;

One end of the locking wheel close to the adjusting wheel is sequentially sleeved with a first gasket, a second gasket and a second gasket;

Wherein, the second gasket is in contact with the bearing boss.

Optionally, it also includes: a first casing and a second casing;

The first housing is connected to the second housing and encloses an installation cavity;

The gear is arranged in the installation cavity;

The clutch assembly, the one-way rotation assembly and the adjustment wheel are arranged outside the installation;

The first housing is provided with a first connection hole, and the second housing is provided with a second connection hole;

The adjusting wheel is provided with a connecting rod, and one end of the connecting rod is provided with an engaging part, and the connecting rod passes through the one-way rotating assembly, the second connecting hole, the gear and the first The connecting hole is engaged with the first connecting hole through the engaging portion.

Correspondingly, an embodiment of the present invention also provides an adjustable strap, including the strap and the adjusting device as described in any one of the above;

Both ends of the strap are connected to the gear;

Wherein, when the adjustment wheel is in the first position, the adjustment wheel applies a downward force along the axial direction of the clutch shaft through the adjustment part, so that the clutch shaft extends into the accommodation hole and into the tooth groove of the locking tooth , by rotating the adjustment wheel to drive the gear to rotate in one direction, so as to tighten the strap;

When the adjusting wheel is in the second position, the clutch shaft is disengaged from the tooth slot of the locking tooth under the action of the restoring force of the elastic body, and the gear can rotate in both directions so as to tighten or loosen the strap .

Correspondingly, an embodiment of the present invention also provides a wearable device, including: the adjustable strap as described in any one of the above.

In the technical solution provided by the embodiment of the present invention, the rotation mode of the gear can be changed by controlling the separation or connection of the adjustment wheel and the gear through the clutch assembly. When the adjustment wheel is in the first position, the adjustment wheel and the gear are connected through the clutch assembly, and under the action of the one-way rotation assembly, the gear can rotate in one direction or the rotation of the adjustment wheel can drive the gear to rotate in one direction. When the regulating wheel is in the second position, the regulating wheel is separated from the gear, and the gear can rotate bidirectionally. By controlling the separation or connection of the adjustment wheel and the gear, the rotation mode of the gear can be changed, so as to realize different adjustment modes and improve the comfort when wearing the strap. The operation process is simple and convenient, allowing the user to easily and quickly It is easy to wear, and at the same time, the structure of the adjustment device is simple and takes up little space.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without creative work.

The drawings described here are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the embodiments of the present invention. The schematic embodiments of the embodiments of the present invention and their descriptions are used to explain the embodiments of the present invention, and do not constitute a Undue limitation of the examples.

In the attached picture:

Fig. 1 is a schematic diagram of an exploded structure of an adjusting device and an adjustable strap according to an embodiment of the present invention;

Fig. 2 is the structural representation of the gear of the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a unidirectional rotation assembly according to an embodiment of the present invention;

Fig. 4 is the schematic structural view of the adjustment wheel of the embodiment of the present invention;

Fig. 5 is a schematic diagram of the use state of the adjusting device according to the embodiment of the present invention;

Fig. 6 is a structural schematic diagram of a clutch shaft according to an embodiment of the present invention;

7 is a schematic cross-sectional view of an adjusting device according to an embodiment of the present invention;

Fig. 8 is a schematic partial cross-sectional view of the adjusting device according to the embodiment of the present invention.

Description of drawings

10: gear; 11: locking wheel; 12: strap teeth; 13: first washer; 14: first washer; 15: second washer; 16: second washer;

20: clutch assembly; 21: clutch shaft; 22: elastic body; 23: first section; 24, second section; 25: third section;

30: one-way coupling gear; 31: internal gear; 32: accommodation hole; 33: stepped hole; 34: first support arm; 35: second support arm; 36: coupling tooth;

40: adjusting wheel; 41: first contact part; 42: second contact part; 43: transition part; 44: connecting rod; 45: engaging part;

50: first housing; 51: second housing; 52: first connecting hole; 53: second connecting hole;

60: strap; 61: rack.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments in the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present invention.

The inventor found in the process of realizing the present invention that at present, it is very inconvenient to adjust the tightness of the strap products in wearable devices, and the operation is very troublesome. The reason is that the currently used strap products The adjustment device has a single function when adjusting, only has the function of adjustment, and does not have a locking function. When the adjustment device is provided and the locking mechanism is additionally provided, the user needs to operate the two components during use, and the operation process is complicated. And tightness is difficult to grasp when adjusting, and wearing comfort is not high.

Therefore, in order to solve the defects in the prior art, the embodiment of the present invention provides an adjustment device, an adjustable strap and a wearable device, which can be adjusted simply and conveniently, and provide one-way locking while providing adjustable functions Function.

The implementation of the embodiments of the present invention will be described in detail below in conjunction with the drawings and examples, so that the implementation process of how to apply technical means to solve technical problems and achieve technical effects in the embodiments of the present invention can be fully understood and implemented accordingly. Accompanying drawing further illustrates the structure of the present invention.

In the drawings of the embodiments of the present invention, the same or similar symbols correspond to the same or similar components; The orientation or positional relationship indicated by "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiment of the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation , are constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are for illustrative purposes only, and should not be construed as limitations on the embodiments of the present invention. For those of ordinary skill in the art, it can be understood according to specific situations The specific meaning of the above terms.

Example 1

Fig. 1 is a schematic diagram of an exploded structure of an adjusting device according to an embodiment of the present invention, Fig. 2 is a schematic diagram of the structure of a gear according to an embodiment of the present invention, and Fig. 3 is a schematic diagram of the structure of a one-way rotation assembly according to an embodiment of the present invention, as shown in Fig. 1 to Fig. 3 shown.

An embodiment of the present invention provides an adjustment device, including: a gear 10 , a clutch assembly 20 , a one-way rotation assembly and an adjustment wheel 40 .

Wherein, a locking wheel 11 is provided on one side of the gear 10, and the locking wheel includes locking teeth.

The clutch assembly 20 includes a clutch shaft 21 and an elastic body 22 connected to the clutch shaft 21 .

An accommodating hole 32 is provided on the one-way rotation assembly, and the locking wheel 11 is located in the accommodating hole 32. The clutch assembly 20 is connected with the one-way rotation assembly, wherein the clutch shaft 21 can perform linear reciprocating motion relative to the one-way rotation assembly.

An adjustment part is provided on the adjustment wheel 40, and the adjustment wheel 40 is connected with the clutch shaft 21 through the adjustment part.

When the adjustment wheel 40 is in the first position, the adjustment part applies a downward force along the axial direction of the clutch shaft 21, so that the clutch shaft 21 extends into the accommodating hole 32 and into the tooth groove of the locking tooth, and the elastic body 22 deforms. The gear 10 can be driven to rotate in one direction by rotating the adjusting wheel 40 .

When the adjusting wheel 40 is in the second position, the clutch shaft 21 is disengaged from the tooth slot of the locking tooth under the action of the restoring force of the elastic body 22, and the gear 10 can rotate in both directions.

Taking clockwise as an example to tighten the strap, in actual implementation, the gear 10 is connected with the strap for binding. The wheel cylindrical surface of the gear 10 is provided with a strap tooth 12 for meshing with the strap rack. In the initial state, the adjustment wheel 40 is in the first position, and the adjustment wheel 40 applies a downward force along the axial direction of the clutch shaft 21 through the adjustment part, so that the clutch shaft 21 extends into the accommodation hole and into the tooth groove of the locking tooth. The adjustment wheel 40 is in a connected state with the gear 10, and at this moment, under the effect of the one-way rotating assembly, the strap can only be tightened. Rotate the adjustment wheel 40 clockwise, the adjustment wheel 40 drives the gear 10 to rotate, thereby tightening the strap, or directly squeeze the strap to make the gear 10 rotate clockwise, then the strap can be tightened. Rotate the adjusting wheel 40 counterclockwise to make the adjusting wheel 40 in the second position, the clutch shaft 21 is disengaged from the tooth groove of the locking tooth under the action of the restoring force of the elastic body 22, and the adjusting wheel 40 is disengaged from the gear 10. At this time, the gear 10 It can rotate in both directions, and the gear 10 can be rotated clockwise or counterclockwise by squeezing or stretching the strap, so that the strap can be tightened or loosened. After adjusting the tightness of the strap, rotate the adjustment wheel 40 clockwise so that the adjustment wheel 40 is in the first position, so that the clutch shaft 21 stretches into the tooth groove of the locking tooth, and the adjustment wheel 40 passes through the clutch shaft 21 and the gear 10 In the connected state, the current tightness of the strap is locked.

In the technical solution provided by the embodiment of the present invention, the separation or connection between the adjustment wheel 40 and the gear 10 can be controlled by the clutch assembly 20, so that the rotation mode of the gear 10 can be changed, so as to realize different adjustment modes and improve the comfort when wearing the strap. The operation process is simple and convenient, and the user can wear it extremely conveniently and quickly. At the same time, the adjustment device has a simple structure and occupies little space.

The adjustment device provided by the embodiment of the present invention will be further described in detail below.

Continuing to refer to FIG. 3 , the one-way rotation assembly in the embodiment of the present invention includes a one-way coupling gear 30 and an internal gear 31 meshing with the one-way coupling gear 30 . When the one-way coupling gear 30 meshes with the internal gear 31, and the clutch shaft 21 extends into the tooth groove of the locking tooth, the one-way rotation assembly can limit the rotation direction of the gear 10, and under the action of the one-way rotation assembly, the gear 10 can only Perform one-way rotation.

The one-way coupling gear 30 is provided with a receiving hole 32 . The one-way coupling gear 30 is provided with a stepped hole 33 that runs through the gear wall of the one-way coupling gear 30 and whose axis is perpendicular to the axle of the one-way coupling gear 30 . The clutch shaft 21 is located in the stepped hole 33 . The clutch shaft 21 can reciprocate linearly along the hole axis of the stepped hole 33 . For example, the clutch shaft 21 extends into the accommodating hole 32 along the axis of the stepped hole 33 , or exits along the axis of the stepped hole 33 .

Referring to FIG. 4 , the adjustment portion includes a first contact portion 41 and a second contact portion 42 , the first contact portion 41 and the second contact portion 42 are at different distances from the axis of the adjustment wheel 40 and connected by a smooth transition portion 43 .

Fig. 5 is a schematic diagram of the use state of the adjusting device according to the embodiment of the present invention, see Fig. 5 .

When the adjustment wheel 40 is in the first position, the first contact portion 41 is connected to the clutch shaft 21 and exerts a downward force along the axial direction of the clutch shaft 21, so that the clutch shaft 21 extends from the stepped hole 33 into the accommodation hole 32 and into the The elastic body 22 is deformed in the tooth grooves of the locking teeth of the locking wheel 11 , the adjusting wheel 40 is connected with the gear 10 through the clutch shaft 21 , and the gear 10 is unidirectionally rotated by rotating the adjusting wheel 40 .

When the adjustment wheel 40 is converted from the first position to the second position, in the process from the first contact portion 41 , the smooth transition portion 43 to the second contact portion 42 , the clutch shaft 21 is locked from the locking position under the restoring force of the elastic body 22 . The cogging of the wheel 11 is disengaged and connected with the second contact portion 42 , the regulating wheel 40 is disengaged from the gear 10 , and the gear 10 can rotate bidirectionally.

Referring to FIG. 6 , in the embodiment of the present invention, the clutch shaft 21 includes three sections, and the diameters of the first section 23 , the second section 24 and the third section 25 are gradually reduced. The elastic body 22 is a spring, and the spring is sleeved on the second section 24 . One end of the spring is in contact with the first section 23 , and the other end is in contact with the stepped surface of the stepped hole 33 .

The spring can be restricted in the stepped hole 33 through the first section 23 and the stepped surface of the stepped hole 33. When the adjustment wheel 40 is connected to the clutch shaft 21 through the first contact portion 41, a downward force is applied to the spring through the first section 23, When the adjustment wheel 40 is connected to the clutch shaft 21 through the second contact portion 42 , the spring exerts upward pressure on the clutch shaft 21 through the first section 23 .

Continue referring to FIG. 3 , in the embodiment of the present invention, the one-way coupling gear 30 includes a first support arm 34 and a second elastic support arm 35 , and one end of the first support arm 34 is connected to the wheel cylindrical surface of the one-way coupling gear 30 On, one end of the second support arm 35 is connected with the other end of the first support arm 34, and the other end of the second support arm 35 is provided with a coupling tooth 36;

The one-way coupling gear 30 meshes with the internal gear 31 through coupling teeth 36 .

Specifically, when the one-way coupling gear 30 rotates clockwise, when the tooth peaks of the coupling teeth 36 pass by the tooth peaks of the internal gear 31, the second support arm 35 deforms so that the coupling teeth 36 are separated from the internal gear 31, and the coupling teeth 36 When the tooth crest passes through the tooth valley of the internal gear 31 , the second support arm 35 returns to the initial state so that the coupling tooth 36 meshes with the internal gear 31 . When the one-way coupling gear 30 rotates in the opposite direction, the coupling teeth 36 are in contact with the inner gear 31 so that the second support arm 35 cannot be deformed, and the one-way coupling gear 30 cannot rotate in the opposite direction. Therefore, when the one-way coupling gear 30 is connected with the gear 10 through the clutch shaft 21, the one-way coupling gear 30 restricts the gear 10 to rotate in only one direction.

In addition, there may be one or more coupling teeth 36 of the one-way coupling gear 30 . When there are multiple coupling teeth 36 , the plurality of coupling teeth 36 are uniformly distributed along the central circumferential direction of the one-way coupling gear 30 . The plurality of coupling teeth 36 are evenly stressed, and also have a better locking effect.

The locking wheel 11 of the gear 10 is located in the accommodation hole 32 of the one-way coupling gear 30, therefore, when the gear 10 rotates, it is easy to generate friction with the one-way coupling gear 30, and it is easy to damage the locking wheel 11 and the accommodation for a long time. Holes 32 are damaged.

In order to reduce the damage caused by friction, referring to Fig. 1 and Fig. 8, in the embodiment of the present invention, a bearing groove is provided on the side wall of the opening of the accommodating hole 32 near the side of the gear 10, and the locking wheel 11 is far away from the adjusting wheel 40 A first washer 13 is sheathed at one end. Wherein, the first washer 13 is in contact with the bearing groove.

A bearing boss is provided on the side wall of the opening of the accommodating hole 32 near the adjustment wheel 40 . One end of the locking wheel 11 close to the adjusting wheel 40 is sheathed with a first washer 14 , a second washer 15 and a second washer 16 in sequence. Wherein, the second gasket 16 is in contact with the carrying boss.

It should be noted that the positions of the bearing groove and the bearing boss can be interchanged, that is to say, the side wall of the opening of the accommodation hole 32 near the side of the gear 10 is provided with a bearing boss or a bearing groove, and the accommodation hole 32 is provided with a bearing boss or a bearing groove. 32 is provided with a bearing groove or a bearing boss on the side wall of the opening near the side of the adjustment wheel 40 . Of course, the first washer 13 and the second washer 15 can also be interchanged.

Continuing to refer to Fig. 1, in order to make the structure of the adjustment device more compact and more beautiful at the same time, so that the various parts of the adjustment device are integrated, in the embodiment of the present invention, the adjustment device further includes: a first housing 50 and a second housing 51.

The first housing 50 is connected with the second housing 51 and encloses an installation cavity. The gear 10 is arranged in the installation cavity. The clutch assembly 20, the one-way rotation assembly and the regulating wheel 40 are arranged outside the installation.

Referring to FIG. 1 , FIG. 4 and FIG. 7 for installation methods, the first housing 50 is provided with a first connection hole 52 , and the second housing 51 is provided with a second connection hole 53 . The adjusting wheel is provided with a connecting rod 44, and one end of the connecting rod 44 is provided with an engaging portion 45, and the connecting rod 44 passes through the one-way rotation assembly, the second connecting hole 53, the gear 10 and the first connecting hole 52 successively, and passes through the locking part. The engaging portion 45 engages with the first connecting hole 52 .

Example 2

Continuing to refer to FIG. 1 , correspondingly, an embodiment of the present invention also provides an adjustable strap, including a strap 60 and the adjusting device as in Embodiment 1.

Both ends of the strap 60 are connected with the gear 10 . Wherein, when the adjustment wheel 40 is in the first position, the adjustment wheel 40 applies a downward force along the axial direction of the clutch shaft 21 through the adjustment part, so that the clutch shaft 21 extends into the accommodating hole and into the tooth groove of the locking tooth. Rotating the adjusting wheel 40 drives the gear 10 to rotate in one direction, so as to tighten the strap 60;

When the adjustment wheel 40 is in the second position, the clutch shaft 21 is disengaged from the tooth groove of the locking tooth under the restoring force of the elastic body 22 , and the gear 10 can rotate bidirectionally so as to tighten or loosen the strap 60 .

Regarding the way of connecting the strap 60 to the gear 10 , one possible way is, referring to FIG. 1 , when the outer circumference of the gear 10 is provided with strap teeth 12 , both ends of the strap 60 are provided with racks 61 . The two racks 61 are meshingly connected to opposite sides of the gear 10 respectively, and when the gear 10 rotates, the two straps 60 move in opposite directions. Specifically, when the two racks 61 move towards each other, the strap 60 is tightened and adjusted, and when the two racks 61 move away from each other, the strap 60 is adjusted loosely.

Another possible way is that both ends of the strap 60 are fixedly connected with the gear 10 . Specifically, both ends of the strap 60 are fixed on the gear 10. When the gear 10 is rotating, the strap 60 will be wound on the gear 10 or unwound so that the strap 60 can be tightened or loosened.

Taking the clockwise rotation of the adjustment wheel 40 as an example to tighten the strap 60, the usage of the adjustable strap is introduced in detail, as follows:

When the adjustable strap is in the initial state, the adjustment wheel 40 is connected to the clutch shaft 21 through the first contact portion 41, so that the clutch shaft 21 extends from the stepped hole 33 into the tooth groove of the locking tooth, and the adjustment wheel 40 is connected to the gear 10 state, at this time only the strap 60 can be tightened. Rotate the adjustment wheel 40 clockwise, the adjustment wheel 40 drives the gear 10 to rotate, thereby tightening the strap 60, or directly squeeze the strap to make the gear 10 rotate clockwise, then the strap 60 can be tightened. After the tightness of the strap 60 is adjusted, the rotation of the adjusting wheel 40 is stopped, that is, the current tightness of the strap 60 is locked.

Turn the adjustment wheel 40 counterclockwise, so that the adjustment wheel 40 contacts the clutch shaft 21 through the second contact portion 42, and the clutch shaft 21 is disengaged from the tooth groove of the locking tooth under the action of the restoring force of the elastic body 22, and the adjustment wheel 40 and the gear 10 is disengaged, the gear 10 can rotate in both directions at this time, by squeezing or stretching the strap 60, the gear 10 rotates clockwise or counterclockwise, and the strap 60 can be tightened or loosened. After adjusting the tightness of the strap 60, rotate the adjustment wheel 40 clockwise, so that the adjustment wheel 40 is connected with the clutch shaft 21 through the first contact portion 41, so that the clutch shaft 21 extends from the stepped hole 33 into the locking tooth. slot, the adjustment wheel 40 is in a connected state with the gear 10, that is, the current tightness of the strap 60 is locked.

Example 3

Correspondingly, an embodiment of the present invention also provides a wearable device, including: the adjustable strap as in Embodiment 2.

One possible implementation is that the wearable device also includes a host, and the two ends of the strap 60 protruding from the installation cavity are detachably connected to the opposite sides of the host, and the adjustment device is set opposite to the host. At this time, the host and the adjustable The strap forms a loop structure so that the user can wear it.

For example, when the user uses the wearable device, the wearable device is put on the head, and the host is at the position facing the user's eyes at this time, and the user can watch the screen played by the host. The part of the strap 60 protruding from the mounting cavity is located on opposite sides of the head, and the adjusting device is located at the back of the head. When the user needs to adjust the tightness of the strap, he only needs to perform corresponding operations through the adjustment device on the back of the head. For example, to tighten the strap 60, the adjustment wheel 10 is rotated clockwise or the strap 60 is compressed. When loosening the strap 60 , the clutch assembly 20 is separated from the gear 10 through the adjustment wheel 40 , and then the strap 60 can be stretched. After the adjustment is completed, the current tightness can be locked by connecting the clutch assembly 20 with the gear 20 through the adjustment wheel 10 .

Wherein, the wearable device includes but is not limited to a head-mounted VR (Virtual Reality, virtual reality) device.

For the implementation principles and technical effects in Embodiment 3 and Embodiment 2, refer to Embodiment 1. The features in Embodiments 1-3 correspond to each other and can be referred to each other, and will not be repeated here.

In summary, the technical solutions provided by the embodiments of the present invention have the following beneficial effects:

1. Through the adjustment wheel, the clutch shaft can be controlled to extend into the tooth slot of the locking tooth or to disengage from the tooth slot, so as to control the separation or connection of the clutch shaft and the gear, so that the rotation mode of the gear can be changed, and the different realization of the rotation mode of the gear can be realized The strap connected with the gear is tightened or loosened, which improves the wearing comfort;

2. The operation process is simple and convenient. The adjustment wheel is connected to the gear through the clutch shaft. The gear can rotate in one direction or the adjustment wheel can drive the gear to rotate in one direction to realize the tightening and locking of the strap. The clutch shaft and the gear are separated, and the gear can be Two-way rotation can realize the tightening and/or loosening of the strap;

3. The operation process is simple and convenient, and different adjustment methods allow users to wear it very conveniently and quickly, which improves the comfort when wearing the strap;

4. Fast pre-tightening and precise fine-tuning of the strap can be realized through the adjustment wheel to meet the requirements of high comfort;

5. The structure is simple, the number of components is small, and the space occupied is small.

It should be noted that although the specific embodiments of the present invention have been described in detail in conjunction with the accompanying drawings, they should not be construed as limiting the protection scope of the present invention. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative efforts still belong to the protection scope of the present invention.

The examples of the embodiments of the present invention are intended to succinctly illustrate the technical features of the embodiments of the present invention, so that those skilled in the art can intuitively understand the technical features of the embodiments of the present invention, and are not intended to be improper limitations of the embodiments of the present invention.

The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separate. It can be understood and implemented by those skilled in the art without any creative effort.

The above description shows and describes several preferred embodiments of the embodiments of the present invention, but as mentioned above, it should be understood that the embodiments of the present invention are not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments. Instead, various other combinations, modifications, and environments are possible, and can be modified by the above teachings or skill or knowledge in the relevant field within the scope of the application concept described herein. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the embodiments of the present invention, and should be within the protection scope of the appended claims of the embodiments of the present invention.

Claims (10)

1. An adjustment device, characterized in that it comprises: a gear, a clutch assembly, a one-way rotation assembly and an adjustment wheel; wherein, A locking wheel is provided on one side of the gear, and the locking wheel includes locking teeth; The clutch assembly includes a clutch shaft and an elastic body connected to the clutch shaft; An accommodating hole is provided on the one-way rotating assembly, the locking wheel is located in the accommodating hole, and the clutch assembly is connected with the one-way rotating assembly, wherein the clutch shaft can be opposite to the one-way rotating assembly. Make linear reciprocating motion to the rotating component; An adjustment part is provided on the adjustment wheel, and the adjustment wheel is connected with the clutch shaft through the adjustment part; When the adjusting wheel is in the first position, the adjusting part exerts a downward force along the axial direction of the clutch shaft, so that the clutch shaft extends into the accommodating hole and into the teeth of the locking teeth. Groove, the elastic body is deformed, and the gear can be driven to rotate in one direction by rotating the adjusting wheel; When the adjusting wheel is in the second position, the clutch shaft is disengaged from the tooth slot of the locking tooth under the action of the restoring force of the elastic body, and the gear can rotate in both directions. 2. The adjusting device according to claim 1, characterized in that, the one-way rotation assembly comprises a one-way coupling gear and an internal gear meshing with the one-way coupling gear; The one-way coupling gear is provided with the accommodation hole; The one-way coupling gear is provided with a stepped hole that runs through the gear wall of the one-way coupling gear and whose axis is perpendicular to the axle of the one-way coupling gear, and the clutch assembly is placed in the stepped hole. 3. The adjustment device according to claim 1, wherein the adjustment part comprises a first contact part and the second contact part, and the distance between the first contact part and the second contact part is the adjustment The axis distances of the wheels are not equal, and they are connected by a smooth transition; When the adjusting handwheel is in the first position, the first contact portion is connected to the clutch shaft and exerts a downward force along the axial direction of the clutch shaft; When the adjustment handwheel is converted from the first position to the second position, the process of the first contact part, the smooth transition part to the second contact part, the clutch shaft is restored by the elastic body Under the action of a force, it escapes from the tooth groove of the locking gear and connects with the second contact portion. 4. The adjustment device according to claim 2, wherein the clutch shaft comprises three sections, and the diameters of the first section, the second section and the third section gradually decrease; The elastic body is a spring, and the spring is sheathed in the second section. One end of the spring is in contact with the first section, and the other end is in contact with the stepped surface of the stepped hole. 5. The adjustment device according to claim 2, wherein the one-way coupling gear comprises a first support arm and an elastic second support arm, one end of the first support arm is connected to the one-way coupling gear. On the cylinder surface of the coupling gear, one end of the second support arm is connected to the other end of the first support arm, and the other end of the second support arm is provided with a coupling tooth; The one-way coupling gear meshes with the internal gear through the coupling teeth. 6. The adjusting device according to claim 1, characterized in that, a bearing groove is provided on the side wall of the opening of the accommodating hole close to the side of the gear; The end of the locking wheel away from the adjusting wheel is sheathed with a first washer; Wherein, the first washer is in contact with the bearing groove. 7. The adjusting device according to claim 1, characterized in that, a bearing boss is provided on the side wall of the opening of the accommodating hole close to the side of the adjusting wheel; One end of the locking wheel close to the adjusting wheel is sequentially sleeved with a first gasket, a second gasket and a second gasket; Wherein, the second gasket is in contact with the bearing boss. 8. The adjustment device according to claim 1, further comprising: a first housing and a second housing; The first housing is connected to the second housing and encloses an installation cavity; The gear is arranged in the installation cavity; The clutch assembly, the one-way rotation assembly and the adjustment wheel are arranged outside the installation; The first housing is provided with a first connection hole, and the second housing is provided with a second connection hole; The adjusting wheel is provided with a connecting rod, and one end of the connecting rod is provided with an engaging part, and the connecting rod passes through the one-way rotating assembly, the second connecting hole, the gear and the first The connecting hole is engaged with the first connecting hole through the engaging portion. 9. An adjustable strap, characterized in that it comprises a strap and the adjusting device according to any one of claims 1 to 8; Both ends of the strap are connected to the gear; Wherein, when the adjustment wheel is in the first position, the adjustment wheel applies a downward force along the axial direction of the clutch shaft through the adjustment part, so that the clutch shaft extends into the accommodation hole and into the tooth groove of the locking tooth , by rotating the adjustment wheel to drive the gear to rotate in one direction, so as to tighten the strap; When the adjusting wheel is in the second position, the clutch shaft is disengaged from the tooth slot of the locking tooth under the action of the restoring force of the elastic body, and the gear can rotate in both directions so as to tighten or loosen the strap . 10. A wearable device, characterized by comprising: the adjustable strap according to claim 9.