CN115079420B

CN115079420B - Telescopic machanism and wearing equipment

Info

Publication number: CN115079420B
Application number: CN202210874896.0A
Authority: CN
Inventors: 张锋; 刘朝红; 鲁文生; 陈鹏飞
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-22
Anticipated expiration: 2042-07-25
Also published as: CN115079420A

Abstract

The invention discloses a telescopic mechanism and wearable equipment. The binding component is arranged on the mounting shell and can slide relative to the mounting shell; the first elastic piece is arranged on the mounting shell and connected with the binding piece, the first elastic piece can be driven to stretch when the binding piece slides, and a limiting part is further formed on the side peripheral surface of the first elastic piece parallel to the stretching direction of the first elastic piece; the adjusting structure is arranged on the mounting shell and can move relative to the mounting shell to abut against the limiting part so as to prevent the partial section of the first elastic piece on the side, away from the binding piece, of the limiting part from being driven by the binding piece to stretch. According to the technical scheme, the use experience of the user on the wearable device is improved.

Description

Telescopic machanism and wearing equipment

Technical Field

The invention relates to the technical field of wearable equipment, in particular to a telescopic mechanism and wearable equipment applying the telescopic mechanism.

Background

With the improvement of the technological level and the development of consumer electronics, wearable devices such as AR products and VR products have been developed at a high speed. In order to improve wearing stability, wearing equipment is usually fixed by a strap. Also, in order to allow the wearing apparatus to be adapted to the head sizes of different users, the strap may be connected to the wearing apparatus by an elastic member so that the strap is adjusted to a proper wearing size when being drawn.

However, the above-mentioned band and elastic member combined to form the telescopic mechanism can satisfy the requirements for accommodating the head sizes of different users. However, as the range of head sizes increases, the resilient means tends to elongate. The elongated elastic mechanism can cause the reverse contraction force to be continuously increased, and when the contraction force is too large and exceeds the more comfortable bearing range of the user, the wearing equipment can be worn too tightly, so that the use experience of the user on the wearing equipment is influenced.

Disclosure of Invention

The invention mainly aims to provide a telescopic mechanism which is applied to wearable equipment and aims to improve the use experience of a user on the wearable equipment.

In order to achieve the above object, the present invention provides a telescopic mechanism comprising:

mounting a shell;

a strap member provided to the mounting case and slidable relative to the mounting case;

the first elastic piece is arranged on the mounting shell and connected with the bandage piece, the first elastic piece can be driven to stretch when the bandage piece slides, and a limiting part is further formed on the side peripheral surface of the first elastic piece parallel to the stretching direction of the first elastic piece; and

the adjusting structure is arranged on the mounting shell and can move relative to the mounting shell to abut against the limiting part so as to prevent the partial section of the first elastic piece on one side, away from the binding piece, of the limiting part from being driven by the binding piece to stretch.

Optionally, the adjustment structure comprises:

the sliding piece is slidably arranged on the mounting shell, and the sliding direction of the sliding piece is parallel to that of the binding piece; and

the stop piece, one end of stop piece rotationally locates the installation shell, the other end can be driven by the slider butt and rotate to the butt in spacing portion towards the side global of first elastic component to stop first elastic component in spacing portion deviate from the partial segment of one side of bandage spare is driven by the bandage spare and is stretched.

Optionally, the sliding member is defined to have a working surface facing the lateral periphery of the first elastic member, and the working surface includes:

a high level surface; and

the high-level surface is close to the first elastic piece compared with the low-level surface, and the sliding piece can drive the stop piece to rotate to abut against the limiting part through the abutting of the high-level surface.

Optionally, the high-level surface is recessed to form a limit groove, and when the sliding member slides to the state that the high-level surface abuts against the stop member, part of the structure of the stop member is accommodated in the limit groove;

and/or the working surface is sunken to form a sunken groove, the wall surface of the notch of the sunken groove surrounded by the working surface forms the high-level surface, and the groove wall of the notch of the sunken groove, which is just opposite to the sunken groove, forms the low-level surface;

and/or the high level surface and the low level surface are both arranged in a plane;

and/or, the working face still includes the connection face, connect in the high level face with the low level face, the connection face is inclined plane or cambered surface setting.

Optionally, the stopper comprises:

one end of the connecting plate is rotatably arranged on the mounting shell; and

the abutting plate is connected to one end, far away from the connecting plate, of the connecting plate, is rotatably connected to the mounting shell and forms an included angle with the connecting plate, and the included angle formed by the abutting plate and the connecting plate is arranged towards the side peripheral surface of the first elastic piece;

when the sliding piece slides to the position where the high-level surface abuts against the connecting part of the connecting plate and the abutting plate, one end, far away from the connecting plate, of the abutting plate abuts against the limiting part;

when the sliding piece slides to the position where the low-level surface abuts against the connecting part of the connecting plate and the abutting plate, one end, far away from the connecting plate, of the abutting plate is separated from the limiting part.

Optionally, an avoiding groove is formed in one end, away from the connecting plate, of the abutting plate, and when the abutting plate abuts against the limiting portion, part of the structure of the first elastic piece is accommodated in the avoiding groove;

and/or a guide groove is formed at the joint of the abutting plate and the connecting plate, and the side edge of the sliding part, which is provided with the working surface, is embedded into the guide groove;

and/or one end of the connecting plate, which is far away from the abutting plate, is encircled to form a rotating hole, the mounting shell is convexly provided with a rotating shaft, and the rotating shaft is inserted into the rotating hole so that the connecting plate can be rotatably arranged on the mounting shell;

and/or the connecting plate and the abutting plate are arranged in an integrated structure;

and/or, the stop piece further comprises a second elastic piece, and the second elastic piece is connected to the mounting shell and the connecting plate so as to drive the abutting plate to be separated from the limiting part.

Optionally, the number of the limiting parts is multiple, and the multiple limiting parts are arranged at intervals in the extending direction of the first elastic piece;

the number of the stop parts is multiple, each stop part corresponds to one limit part, and the sliding part can be abutted to drive any one of the stop parts to rotate towards the lateral peripheral surface of the first elastic part so as to be abutted to the limit part corresponding to the stop part.

Optionally, the sliding member is provided with a sliding hole, the sliding hole extends and opens along a sliding direction of the sliding member, and the adjusting structure further includes a fastening member, the fastening member passes through the sliding hole and is inserted into the mounting shell, so that the sliding member is slidably disposed on the mounting shell.

Optionally, the first elastic element is a spring, a limiting ring is sleeved on the lateral peripheral surface of the spring, and the limiting ring is formed into the limiting part;

and/or, the bandage piece first elastic component and adjust the structure and all locate in the installation shell, just the bandage piece is kept away from the one end of first elastic component by the installation shell is worn out, it still is equipped with the regulation button to adjust the structure, the installation shell is corresponding the position of adjusting the button is equipped with the confession adjust the mistake that the button was worn out and let the hole, just cross and let the hole edge adjust the moving direction extension setting of structure.

The invention further provides wearing equipment which comprises a display host and the telescopic mechanism, wherein the display host and the telescopic mechanism form a wearing space through the surrounding of the binding piece.

When the telescopic mechanism is applied to wearing equipment for use, the binding band part is pulled to slide relative to the mounting shell, so that wearing spaces with different sizes can be defined, and the telescopic mechanism is suitable for wearing of different users. And, because be provided with spacing portion on the side global of telescopic machanism's in this scheme first elastic component, can remove to butt in spacing portion through adjusting the structure for can block that first elastic component is driven at the partial segment that spacing portion deviates from bandage spare one side and is tensile by the bandage spare. In other words, the length of the first elastic member that can be stretched and deformed by the binding belt member is changed, which is equivalent to changing the initial length of the first elastic member (i.e. the length of the first elastic member that can be stretched and deformed), so that the amount of the elastic force that can be released when the first elastic member needs to be stretched to a certain length can be controlled. Specifically, the formula for the spring force is: f = -K · X, when the model of the first elastic member is selected, the K value (elastic coefficient) is a fixed value, and the slope of the force value curve corresponding to fig. 1 is constant. Here, it can be seen that, when the initial length of the first elastic member is L0, the elastic force value of the first elastic member is also 0. When the length of the first elastic member is elongated to L1, the elastic value of the first elastic member is F1 (the elastic value may be defined as the maximum comfort value, that is, when the user stretches the first elastic member to L1 or less, the wearing device does not feel too tight when being worn on the human body by the stretching mechanism); if the length of the first elastic member needs to be extended to L2 because the size of the wearing part such as the head of the user is too large, the elastic force value of the first elastic member is increased to F2 (the force value F2 exceeds the comfort force value range because it is much larger than the force value F1, that is, when the user stretches the first elastic member to L2, the elastic force released by the first elastic member is too large, so that the wearing device feels too tight when being worn on the human body through the telescopic mechanism). At this time, the adjusting structure slides to abut against the limiting portion of the first elastic member, so that the initial length (i.e. the length capable of being subjected to tensile deformation) of the first elastic member can be correspondingly changed from L0 to L1. So when stretching the length of first elastic component to L2, the elasticity value of the first elastic component that corresponds just still can stabilize at F1 yet, and can not exceed the maximum comfort power value.

That is, telescopic machanism in this scheme can adjust the elasticity that first elastic component can release through the initial length that changes first elastic component through adjusting the structure to when having different users of wearing the size in the face, when the size of wearing first elastic component tensile to the adaptation user, the elasticity value that first elastic component released can be located the user all the time and can comparatively comfortable bearing range. So just so also avoided along with the increase of the size range of wearing parts such as user's head for elastic mechanism's constantly lengthening and cause reverse contraction power too big, lead to surpassing the condition emergence that the user can comparatively comfortable bearing scope, so that the user of difference all can comparatively comfortable wear and can not cause to wear tension, thereby improved user experience to wearing equipment's use.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of a spring force curve of a spring;

FIG. 2 is a schematic view of the telescoping mechanism of the present invention;

FIG. 3 is another perspective view of the telescoping mechanism of FIG. 2;

FIG. 4 is a partial schematic view of the telescoping mechanism of FIG. 3;

FIG. 5 is a schematic view of an exploded structure of the slider and stopper of the telescoping mechanism of FIG. 4;

FIG. 6 is a schematic view of the stopper of FIG. 5;

FIG. 7 is a schematic view illustrating a state where the stop member of the adjusting mechanism of the retractable mechanism of the present invention is not abutted against the position-limiting portion of the first elastic member;

fig. 8 is a schematic view of the stop member of the adjusting structure of the telescopic mechanism abutting against the position-limiting portion of the first elastic member according to the present invention.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name(s)
				100	Telescopic mechanism	715	Concave groove
10	Mounting shell	716	Connecting surface
				11	Rotating shaft	717	Sliding hole
13	Passing hole	718	Adjusting button
				30	Binding belt piece	73	Stop piece
50	A first elastic member	731	Connecting plate
				51	Limiting part	732	Rotating hole
70	Adjusting structure	733	Abutting plate
				71	Sliding member	734	Dodging groove
711	Working surface	735	Guide groove
				712	High level surface	736	Second elastic member
713	Lower surface	75	Fastening piece
				714	Spacing groove

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 2 to fig. 8, the present invention provides a telescopic mechanism 100, which can be applied to a wearable device, such as an AR device or a VR device. In one embodiment of the present invention, the retracting mechanism 100 includes a mounting case 10, a strap member 30, a first elastic member 50, and an adjusting structure 70. The binding member 30 is provided to the mounting case 10 and is slidable with respect to the mounting case 10; the first elastic member 50 is disposed on the mounting case 10 and connected to the strap member 30, the first elastic member 50 can be pulled by the sliding of the strap member 30, and a stopper 51 is further formed on a side circumferential surface of the first elastic member 50 parallel to a pulling direction thereof; the adjusting structure 70 is disposed on the mounting shell 10, and can move relative to the mounting shell 10 to abut against the limiting portion 51, so as to prevent the partial section of the first elastic member 50 at the side of the limiting portion 51 departing from the strap member 30 from being pulled by the strap member 30.

In this embodiment, the mounting case 10 can be used to mount the strap member 30, the first elastic member 50 and the adjusting structure 70, so that the components of the retracting mechanism 100 can be assembled into a whole. And in order to improve the compactness of mounting the strap member 30, the first elastic member 50 and the adjustment structure 70 on the mounting case 10, the strap member 30, the first elastic member 50 and the adjustment structure 70 may be provided in the mounting case 10. Referring to fig. 3, 4, 7 and 8 in combination, it is also possible to provide two strap members 30, and two strap members 30 may be attached to opposite ends of the first elastic member 50. One end of the strap 30, which is far away from the first elastic element 50, is extended out of the mounting shell 10 and connected to two ends of a display host of the wearable device (for example, a lens barrel for displaying, etc.), and the display host and the telescopic mechanism form a wearing space through the strap 30. The adjusting structure 70 may be provided with an adjusting button 718, the mounting shell 10 is provided with a passing hole 13 at a position corresponding to the adjusting button 718, and the passing hole 13 extends along the moving direction of the adjusting structure 70, so that the exposed adjusting button 718 is used by a user to apply an acting force to drive the adjusting structure 70 to move. The first elastic member 50 may be used to couple the strap member 30 so that the strap member 30 can be extended and contracted, thereby allowing the strap to be stably worn while being pulled to a proper position when facing various users. The first elastic member 50 may be a spring having an advantage of good elasticity, so that the first elastic member 50 can apply stable elastic force to further improve the wearing stability of the wearable device. Furthermore, the spring may also be purchased directly on the market, thereby also improving the access to the first elastic member 50. In this case, the gap between adjacent spiral sections of the first elastic member 50 may be formed as a stopper portion 51, and the adjustment structure 70 may be inserted into the stopper portion 51 from the side circumferential surface of the first elastic member 50 to abut against and be stopped. Certainly, in order to avoid that the adjusting structure 70 is clamped by the first elastic element 50 and the adjusting structure 70 is separated from the first elastic element 50 when the adjusting structure 70 is inserted into the limiting portion 51 of the first elastic element 50, a limiting ring may be sleeved on a side circumferential surface of the spring, and the limiting ring is formed as the limiting portion 51. At this time, the adjustment structure 70 works without protruding into the first elastic member 50 when moving to abut on the side of the stop collar facing the strap member 30, that is, on the outside of the first elastic member 50. Or, the first elastic element 50 may also be a rubber band or an elastic silicone strip, and at this time, the limiting portion 51 may be formed only by providing a protrusion or forming a groove on the lateral peripheral surface of the rubber band or the elastic silicone strip. The adjusting structure 70 may be configured to move to abut against the limiting portion 51 of the first elastic element 50 or move to disengage from the limiting portion 51 of the first elastic element 50. When the adjusting structure 70 abuts against the limiting portion 51, the partial segment of the first elastic element 50 on the side of the limiting portion 51 away from the strap element 30 is also blocked from being pulled by the strap element 30, so that only the partial segment of the first elastic element 50 close to the strap element 30 can be pulled, that is, the partial segment performs an effective pulling operation. When adjusting structure 70 and spacing portion 51 and breaking away from, just not blockking yet first elastic component 50 is in spacing portion 51 deviates from the segmental body of bandage piece 30 one side is driven tensile by bandage piece 30 for the whole segmental body of first elastic component 50 can be driven tensile, and whole segmental body plays effectual tensile work promptly, thereby has adjusted the length that first elastic component 50 can take place tensile deformation through this adjustment structure 70.

When the telescopic mechanism 100 in the technical scheme of the invention is used, the bandage piece 30 is pulled to slide relative to the installation shell 10, so that the size of a wearing space formed by the display host machine and the telescopic mechanism through the bandage piece 30 in an enclosing manner is adjusted, and the wearing spaces with different sizes can be formed to adapt to the wearing and use of the heads of different users. Moreover, since the side circumference of the first elastic element 50 of the telescopic mechanism 100 in this embodiment is provided with the limiting portion 51, the first elastic element 50 can be moved to abut against the limiting portion 51 through the adjusting structure 70, so that the partial segment of the first elastic element 50 on the side of the limiting portion 51 departing from the strap 30 can be prevented from being driven by the strap 30 to stretch. In other words, the length of the first elastic member 50 that can be stretched and deformed by the binding member 30 is changed, which is equivalent to changing the initial length of the first elastic member 50 (i.e. the length of the first elastic member that can be stretched and deformed), so that the amount of the elastic force that can be released when the first elastic member 50 needs to be stretched to a certain length can be controlled. Specifically, the formula for the spring force is: f = -K · X, when the model of the first elastic member 50 is selected, the K value (elastic coefficient) is a fixed value, and the slope of the force value curve corresponding to fig. 1 is constant. Here, it can be seen that, when the initial length of the first elastic member 50 is L0, the elastic force value of the first elastic member 50 is also 0. When the length of the first elastic member 50 is elongated to L1, the elastic value of the first elastic member 50 is F1 (the elastic value may be defined as the maximum comfort value, that is, when the user stretches the first elastic member 50 to L1 or less, the wearing device does not feel too tight when being worn on the human body by the telescopic mechanism 100); if the length of the first elastic member 50 needs to be extended to L2 because the wearing part such as the head of the user is too large, the elastic force value of the first elastic member 50 is increased to F2 (the force value F2 is far larger than the force value F1 and exceeds the range of the comfort force value, that is, when the user stretches the first elastic member 50 to L2, the elastic force released by the first elastic member 50 is too large, so that the wearing device feels too tight when wearing on the human body through the stretching mechanism 100). At this time, the adjusting structure 70 slides to abut against the limiting portion 51 of the first elastic element 50, so that the initial length (i.e. the length capable of being subjected to tensile deformation) of the first elastic element 50 can be correspondingly changed from L0 to L1. Thus, when the length of the first elastic member 50 is extended to L2, the elastic force value of the corresponding first elastic member 50 can still be stabilized at F1 without exceeding the maximum comfort force value. That is, the telescopic mechanism 100 in this embodiment can adjust the elastic force that can be released by the first elastic member 50 by changing the initial length of the first elastic member 50 through the adjusting structure 70, so that when facing different users with different wearing sizes, and when stretching the first elastic member 50 to a size that fits the user to wear, the elastic force value that the first elastic member releases can be always located in the bearing range that the user can be comfortable. So just also avoided along with the increase of the size range of wearing portion such as user's head for elastic mechanism's constantly lengthening and cause reverse contractility too big, lead to surpassing the condition that the user can comparatively comfortable bearing the scope and take place, so that the user of difference all can comparatively comfortable wear and can not cause and wear tension, thereby improved the user and experienced to wearing equipment's use.

Referring to fig. 3 to 8, in an embodiment of the present invention, the adjusting structure 70 includes a sliding member 71 and a stop member 73, the sliding member 71 is slidably disposed on the mounting housing 10, and a sliding direction of the sliding member 71 is parallel to a sliding direction of the strap member 30; one end of the stop member 73 is rotatably disposed on the mounting case 10, and the other end of the stop member can be abutted by the sliding member 71 and driven to rotate toward the side circumference of the first elastic member 50 to abut against the limiting portion 51, so as to prevent the partial segment of the first elastic member 50 on the side of the limiting portion 51 departing from the bandage 30 from being driven by the bandage 30 to be stretched.

In the present embodiment, the adjusting structure 70 is disposed on one side of the side peripheral surface of the first elastic member 50, and is composed of a sliding piece 71 and a rotating stop piece 73, while the sliding direction of the sliding piece 71 is parallel to the sliding direction of the strap member 30, that is, the sliding adjustment can be performed along the circumferential direction of the mounting case 10, and the circumferential direction of the mounting case 10 has just a larger space for the sliding piece 71 to slide. The space of the mounting case 10 in the circumferential direction is fully utilized, thereby avoiding the need for a relatively large telescopic structure due to the provision of the sliding space required for the adjustment structure 70. Meanwhile, since the first elastic member 50 is generally disposed on both upper and lower sides of the strap member 30 (the upper and lower directions are the upper and lower directions defined when the wearing device is in a normal use state, and the upper and lower directions are perpendicular to the circumferential direction of the mounting case 10) in order to improve the stability of extension and retraction of the strap member 30, the adjustment structure 70 disposed at this time can also conveniently drive the stop members 73 disposed on both upper and lower sides of the sliding member 71 through the sliding member 71 which slides horizontally, so as to abut against the limiting portions 51 on the first elastic members 50 on both upper and lower sides, respectively, thereby simplifying the structure of the adjustment structure 70 when two first elastic members 50 disposed in an up-and-down distribution manner face each other. Since the mounting case 10 is configured to be an arc-shaped long structure for fitting the head of the user, the sliding member 71 may also be an arc-shaped long structure, so that it can be more fittingly mounted in the mounting case 10 and can slide smoothly relative to the mounting case 10. At this time, the slider 71 is provided with the above-mentioned adjustment button 718. In addition, it should be noted that, when the mounting housing 10 has a large volume in the up-down direction, the adjusting structure 70 may also only include the sliding member 71, and the sliding direction of the sliding member 71 may be along the up-down direction, that is, perpendicular to the sliding direction of the binding member 30. At this time, the slider 71 may be directly slid toward the side circumferential surface of the first elastic member 50 to abut against and be limited by the limiting portion 51 of the first elastic member 50.

Further, referring to fig. 4, 5, 7 and 8, it is defined that the sliding member 71 has a working surface 711 disposed toward the side peripheral surface of the first elastic member 50, the working surface 711 includes a high surface 712 and a low surface 713, the high surface 712 is closer to the first elastic member 50 than the low surface 713, and the sliding member 71 can abut against the high surface 712 to drive the stopper 73 to rotate to abut against the limiting portion 51 (wherein, the sliding member 71 shown in fig. 7 slides to the low surface 713 to abut against the stopper 73, and at this time, the stopper 73 does not abut against the limiting portion 51; the sliding member shown in fig. 8 slides to the high surface 712 to abut against the stopper 73, and at this time, the stopper 73 abuts against the limiting portion 51).

In the embodiment, the working surface 711 of the sliding member 71 directly abuts against the stop member 73 to drive the stop member to rotate to abut against the limiting portion 51, that is, the side edge of the sliding member 71 directly abuts against the limiting portion to drive the stop member to operate, so that the structure of the sliding member 71 is simpler, and the convenience and the overall strength of the manufacturing of the sliding member 71 are improved. In order to further simplify the structure of the slider 71, the working surface 711 may be concavely formed with a concave groove 715, a wall surface of the working surface 711 surrounding the notch of the concave groove 715 is formed as a high surface 712, and a groove wall of the concave groove 715 facing the notch thereof is formed as a low surface 713. In this case, the high-level surface 712 and the low-level surface 713 can be formed directly by forming the concave groove 715 in the working surface 711 of the slider 71. Moreover, the high level surface 712 and the low level surface 713 may be both disposed in a plane, so that the structure of the sliding member 71 is more regular and the processing and molding are facilitated. Further, for convenience in the sliding process of the slider 71, the stopper 73 can smoothly slide over the junction of the high-level surface 712 and the low-level surface 713. The working surface 711 may further include a connecting surface 716, the connecting surface 716 is connected to the upper surface 712 and the lower surface 713, and the connecting surface 716 is disposed in a slant or arc shape to guide the stopper 73 to slide between the upper surface 712 and the lower surface 713. In order to improve the stability of the stopper 73 in contacting with the position-limiting portion 51, the high-level surface 712 may be recessed to form a position-limiting groove 714, and when the slider 71 slides to the high-level surface 712 contacting with the stopper 73, part of the structure of the stopper 73 is received in the position-limiting groove 714, so that the stopper 73 is stably in contacting with the position-limiting portion 51 by the position-limiting effect of the position-limiting groove 714. Further, referring to fig. 3 to 5 in combination, in order to simplify the installation of the sliding member 71 and improve the sliding stability of the sliding member 71, the sliding member 71 is provided with a sliding hole 717, the sliding hole 717 extends along the sliding direction of the sliding member 71, the adjusting structure 70 further includes a fastening member 75, and the fastening member 75 passes through the sliding hole 717 and is inserted into the mounting shell 10, so that the sliding member 71 is slidably disposed on the mounting shell 10. That is, by the limit of the fastener 75 (specifically, a screw), the sliding member 71 is limited in the axial direction of the fastener 75, but can still slide along the extending direction of the sliding hole 717. Of course, in other embodiments, the sliding member 71 may be assembled by providing a T-shaped sliding block and a T-shaped sliding slot on the mounting housing 10. In addition, the slider 71 may be provided with a projection on the working surface 711, and the projection may abut against and rotate the stopper 73.

Referring to fig. 4 to 8, in an embodiment of the present invention, the stop member 73 includes a connecting plate 731 and an abutting plate 733, one end of the connecting plate 731 is rotatably disposed on the mounting housing 10; the abutting plate 733 is connected to one end of the connecting plate 731, which is far away from the end of the connecting plate 731 which is rotatably connected to the mounting shell 10, and is arranged at an included angle with the connecting plate 731, and the included angle formed by the abutting plate 733 and the connecting plate 731 is arranged towards the lateral periphery of the first elastic piece 50; when the sliding member 71 slides to the high-position surface 712 to abut against the connection part between the connection plate 731 and the abutting plate 733, one end of the abutting plate 733, which is far away from the connection plate 731, abuts against the limiting part 51; when the slider 71 slides until the low-position surface 713 abuts on the connection portion between the connection plate 731 and the abutment plate 733, one end of the abutment plate 733 remote from the connection plate 731 is detached from the stopper 51.

In this embodiment, the stop part 73 includes a connecting plate 731 and an abutting plate 733, and the two are disposed at an included angle, so that a connection portion of the connecting plate 731 and the abutting plate 733 is closer to the sliding part 71, and an end of the abutting plate 733 away from the connecting plate 731 is closer to the first elastic part 50. When the sliding member 71 abuts against the connecting portion between the driving connecting plate 731 and the abutting plate 733 through the high-level surface 712, the abutting plate 733 can rotate by a small stroke to abut against the limiting portion 51 of the first elastic member 50, so that the abutting of the sliding member 71 against the stopping member 73 is driven to be in place. When the end of the abutting plate 733, which is far from the connecting plate 731, is separated from the stopper 51, the joint between the connecting plate 731 and the abutting plate 733 abuts against the low-level surface 713, so that the stopper 73 and the slider 71 are always in abutting relation, which is advantageous for improving the sliding and abutting engagement between the stopper 73 and the slider 71. Of course, in order to further improve the stability of the sliding member 71 engaging with the stopper 73 during the sliding process, a guide groove 735 may be formed at the connection portion between the abutting plate 733 and the connecting plate 731, and the side edge of the sliding member 71 having the working surface 711 is inserted into the guide groove 735. At this time, the side edge of the sliding member 71 is engaged with the guiding groove 735 in a limiting manner, so that the sliding member 71 can slide relatively only in the extending direction of the guiding groove 735. In addition, it should be noted that, the present application is not limited to this, and in other embodiments, the stopper 73 may only include the connecting plate 731, and in this case, the connecting plate 731 may be driven by the slider 71 to move away from one end of the mounting shell 10 to rotate, so as to rotate for a relatively large stroke, and then abut against the limiting portion 51.

Further, since the position-limiting portion 51 is formed by a position-limiting ring sleeved on the outer side of the first elastic element 50, the abutting plate 733 and the position-limiting portion 51 have a large adaptive abutting area, so as to improve the stability of the abutting plate 733 and the position-limiting portion 51. Referring to fig. 4 to fig. 6, an avoiding groove 734 may be formed at an end of the abutting plate 733 away from the connecting plate 731, and when the abutting plate 733 abuts against the limiting portion 51, a part of the first elastic member 50 is accommodated in the avoiding groove 734. At this time, the arrangement of the avoiding groove 734 makes the abutting plate 733 and the side circumference of the first elastic member 50 adapted, and further adapted to the shape of the limiting ring, so as to increase the contact area between them. Further, the connecting plate 731 and the abutting plate 733 may be provided in an integral structure. So can increase the intensity of junction between the two to be favorable to strengthening the bulk strength of stopper piece 73, so that can be stable play the spacing effect of butt to spacing portion 51 through this stopper piece 73, also be favorable to improving the life of this stopper piece 73 simultaneously. In order to improve the convenience of mounting the connection plate 731, a rotation hole 732 may be formed around an end of the connection plate 731 away from the abutting plate 733, a rotation shaft 11 is protruded from the mounting case 10, and the rotation shaft 11 is inserted into the rotation hole 732 so that the connection plate 731 is rotatably mounted on the mounting case 10. In addition, in order to facilitate the timely rotation and return of the stop member 73 when the sliding member 71 abuts against the stop member 73 through the low-position surface 713, the stop member 73 may further include a second elastic member 736, and the second elastic member 736 is connected to the mounting shell 10 and the connecting plate 731 so as to drive the abutting plate 733 to be separated from the limiting portion 51. That is, the second elastic member 736 can drive the connecting plate 731 to abut against or further abut against the lower surface 713 of the sliding member 71, and then the second elastic member 736 can be deformed when the sliding member 71 drives the stopping member 73 to rotate by the abutment of the upper surface 712. Thus, when the sliding member 71 slides to the lower surface 713 and abuts against the stop member 73, the second elastic member 736 can drive the stop member 73 to be timely reset under the elastic force of the elastic deformation. Preferably, the second elastic member 736 can drive the stopper 73 to be kept tightly against the working surface 711 of the slider 71, so that when the user uses the adjusting button 718 on the slider 71 to drive the slider 71 to slide to the high-position surface 712 or the low-position surface 713 is abutted against the stopper 73, the stopper 73 can be abutted against the stopper 73 to realize the effect of limiting the sliding to any position. The second elastic member 736 may be a torsion spring, but may also be a spring.

In an embodiment of the present invention, when the number of the limiting portions 51 is one, the first elastic element 50 has an operating mode with two gears. Specifically, the method comprises the following steps: when the first elastic member 50 needs to be stretched to a relatively short length, the sliding member 71 can slide to the high-level surface 712 to abut against the upper limiting portion 51 of the first elastic member 50, so that the first elastic member 50 can perform the stretching operation only on the segment of the limiting portion 51 facing the strap member 30, and thus, an operation range is formed. When the first elastic member 50 needs to be stretched to a relatively long length, the slider 71 can slide to the low position face 713 to abut against the upper limiting portion 51 of the first elastic member 50, so that the whole segment of the first elastic member 50 can be stretched, and at this time, another operating position is formed. Of course, it should be noted that the present application is not limited thereto, and in other embodiments, the number of the limiting portions 51 may also be multiple, and the multiple limiting portions 51 are disposed at intervals in the extending direction of the first elastic element 50; the number of the stoppers 73 is also plural, and each stopper 73 is disposed corresponding to one of the limiting portions 51, and the sliding member 71 can abut and drive any one of the stoppers 73 to rotate toward the side circumferential surface of the first elastic member 50, so as to abut against the limiting portion 51 corresponding to the stopper 73. In this case, the first elastic member 50 has an operation mode of three or more stages, and when the slider 71 slides to the high-position surface 712 to abut against the different stopper portions 51, the length of the segment body on which the first elastic member 50 can perform the stretching operation is also different, and a plurality of operation stages are formed correspondingly. Also, it should be noted that one end of the first elastic member 50 may be fixed to the mounting case 10, and the strap member 30 may be connected to one end of the first elastic member 50. In order to ensure that the two strap members 30 can have corresponding expansion and contraction capabilities, the limiting portions 51 can be symmetrically disposed at opposite ends of the first elastic member 50, for example, left and right ends, with a center line of the first elastic member 50 perpendicular to the opposite ends thereof as a boundary. At this time, the slider 71 may be provided with the above-mentioned high level surface 712 and low level surface 713 at positions corresponding to the position of the limiting portions 51 at the left and right ends of the first elastic member 50, and it is ensured that when the slider 71 is slid until the high level surface 712 at the left end abuts against one of the limiting portions 51 at the left end of the first elastic member 50, the high level surface 712 at the left end may also abut against one of the symmetrical limiting portions 51 at the right end of the first elastic member 50, thereby ensuring that the segments at the left and right ends of the first elastic member 50 have the same shift position operation mode.

The present invention further provides a wearable device, which includes a display host and a telescopic mechanism 100, the display host and the telescopic mechanism 100 form a wearing space through a band member, the specific structure of the telescopic mechanism 100 refers to the above embodiments, and the wearable device adopts all technical solutions of all the above embodiments, so that the wearable device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and further description is omitted here. Wherein, the wearing equipment can be AR equipment or VR equipment etc..

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a telescopic machanism is applied to wearing equipment, its characterized in that, telescopic machanism includes:

mounting a shell;

the binding piece is arranged on the mounting shell and can slide relative to the mounting shell;

the first elastic piece is arranged on the mounting shell and connected with the binding piece, the first elastic piece can be driven to stretch when the binding piece slides, and a limiting part is further formed on the side peripheral surface of the first elastic piece parallel to the stretching direction of the first elastic piece; and

the adjusting structure is arranged on the mounting shell and can move relative to the mounting shell to abut against the limiting part so as to prevent a partial section of the first elastic piece on one side, away from the bandage piece, of the limiting part from being driven by the bandage piece to stretch;

the adjusting structure comprises a sliding part and a stop part, the sliding part is slidably arranged on the mounting shell, and the sliding direction of the sliding part is parallel to that of the binding piece; one end of the stop piece is rotatably arranged on the mounting shell, and the other end of the stop piece can be abutted and driven by the sliding piece to rotate towards the side peripheral surface of the first elastic piece until the stop piece abuts against the limiting part, so that the partial section of the first elastic piece on one side, away from the binding piece, of the limiting part is prevented from being driven by the binding piece to stretch;

the sliding part is defined to be provided with a working surface facing the lateral periphery of the first elastic part, the working surface comprises a high-position surface and a low-position surface, the high-position surface is close to the first elastic part compared with the low-position surface, and the sliding part can drive the stop part to rotate to abut against the limiting part through the abutting joint of the high-position surface.

2. The telescoping mechanism as claimed in claim 1, wherein the high-level surface is recessed to form a limiting groove, and when the sliding member slides to the high-level surface and abuts against the stop member, part of the stop member is accommodated in the limiting groove;

3. The telescoping mechanism of claim 1, wherein the stop comprises:

the abutting plate is connected to one end, far away from the connecting plate, of the connecting plate, is rotatably connected to the mounting shell and is arranged at an included angle with the connecting plate, and the included angle formed by the abutting plate and the connecting plate is arranged towards the side peripheral surface of the first elastic piece;

when the sliding piece slides to the position where the low surface abuts against the connecting plate and the abutting plate, one end, far away from the connecting plate, of the abutting plate is separated from the limiting portion.

4. The telescoping mechanism of claim 3, wherein an avoiding groove is formed in one end of the abutting plate, which is far away from the connecting plate, and when the abutting plate abuts against the limiting portion, part of the structure of the first elastic element is accommodated in the avoiding groove;

and/or a guide groove is formed at the joint of the abutting plate and the connecting plate, and the side edge of the sliding piece, which is provided with the working surface, is embedded into the guide groove;

and/or one end of the connecting plate, which is far away from the abutting plate, is encircled to form a rotating hole, the mounting shell is convexly provided with a rotating shaft, and the rotating shaft is inserted into the rotating hole so that the connecting plate can be rotatably arranged in the mounting shell;

5. The telescopic mechanism according to claim 1, wherein the number of the limiting parts is plural, and the plural limiting parts are arranged at intervals in the extending direction of the first elastic member;

the number of the stop parts is multiple, each stop part corresponds to one limit part, and the sliding part can be abutted to drive any one of the stop parts to rotate towards the lateral periphery of the first elastic part so as to be abutted to the limit part corresponding to the stop part.

6. The retracting mechanism according to claim 1, wherein the sliding member is provided with a sliding hole extending in a sliding direction of the sliding member, and the adjusting structure further comprises a fastening member inserted through the sliding hole and into the mounting housing so that the sliding member is slidably provided to the mounting housing.

7. The telescopic mechanism according to any one of claims 1 to 6, wherein the first elastic member is a spring, a limiting ring is sleeved on the lateral peripheral surface of the spring, and the limiting ring is formed as the limiting part;

8. A wearable device, characterized by comprising a display main machine and a telescopic mechanism according to any one of claims 1 to 7, wherein the display main machine and the telescopic mechanism form a wearing space through the belt.