CN219695567U

CN219695567U - Bandage adjusting structure and head-mounted device

Info

Publication number: CN219695567U
Application number: CN202320455771.4U
Authority: CN
Inventors: 魏曾; 王青; 曹敬龙; 张传涛
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-09-15
Anticipated expiration: 2033-03-08

Abstract

The utility model provides a bandage adjusting structure and head-mounted equipment, wherein the bandage adjusting structure comprises: a strap holder on which a ring gear portion is formed; binding the adjustment component; a binding band engaged with the binding adjustment member; a ratchet wheel component which is respectively meshed with the bandage adjusting component and the gear ring part; the stirring part is provided with a stirring part above, and can be separated from the gear ring part and drive the ratchet part to rotate by acting force of the stirring part to the ratchet part during rotation; and the separating mechanism is formed on the stirring part and the binding belt adjusting part and can separate the binding belt adjusting part from the ratchet part when the stirring part is pressed. According to the structure of the binding belt, the gear part and the ratchet part for adjusting the length of the binding belt are designed in a split mode, and the gear part and the ratchet part are separated by pressing the stirring part, so that the problem that noise occurs in a moment of binding belt loosening by the ratchet is solved.

Description

Bandage adjusting structure and head-mounted device

Technical Field

The utility model relates to the technical field of head-mounted equipment, in particular to an improvement of a strap structure of head-mounted equipment.

Background

The length of the head-mounted part of the head-mounted display needs to be adjusted when the head-mounted display is worn, so that the head-mounted display is convenient for a user to wear and meets the requirements of different head circumferences of different users. Most of the existing head-mounted adjusting structures are adjusted by utilizing a ratchet wheel and a gear which are meshed with each other, the ratchet wheel is provided with an external tooth part and an internal tooth part, the external tooth part is matched with a gear ring on a wearing support, the internal tooth part is matched with the gear ring, during adjustment, the gear is driven to rotate by rotation of the ratchet wheel, the gear is meshed with a binding belt, the length of the binding belt is adjusted by rotation of the gear, and then the tightness degree is adjusted during wearing.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the utility model and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides a novel binding band structure, which is characterized in that a gear part and a ratchet part for adjusting the length of the binding band are designed in a split manner, and the gear part and the ratchet part are separated by pressing a stirring part, so that the problem that noise occurs in a moment of binding band loosening by a ratchet is solved.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the utility model provides a bandage adjusting structure, which comprises:

a strap holder on which a ring gear portion is formed;

binding the adjustment component;

a binding band engaged with the binding adjustment member;

a ratchet wheel component which is respectively meshed with the bandage adjusting component and the gear ring part;

the stirring part is provided with a stirring part above, and can be separated from the gear ring part and drive the ratchet part to rotate by acting force of the stirring part to the ratchet part during rotation;

a separating mechanism formed on the toggle member and the strap adjusting member, capable of separating the strap adjusting member and the ratchet member when the toggle member is pressed;

when the stirring part is rotated, the stirring part can drive the ratchet part and the binding belt adjusting part to rotate so as to adjust the length of the binding belt;

when the stirring part is pressed, the stirring part can drive a separating mechanism positioned on the binding band adjusting part and the stirring part to act so as to separate the binding band adjusting part and the ratchet part.

In some embodiments of the utility model, the ratchet member comprises a ratchet arm having a ratchet tooth portion at an end thereof, which is engaged with the ring gear portion by the ratchet tooth portion.

In some embodiments of the utility model, the separation mechanism comprises:

at least 1 group of sliding parts are arranged oppositely, each sliding part is provided with a matched tooth part matched with the ratchet wheel gear ring part, and each sliding part is provided with a first inclined part;

a pressing part formed on the toggle member, wherein a second inclined part which is fit with the first inclined part is arranged on the pressing part;

when the poking part is pressed, the second inclined part on the poking part applies acting force to the first inclined part so as to drive the two oppositely arranged sliding parts to move oppositely, so that the matched tooth part above the sliding parts is separated from the ratchet tooth ring part;

and an elastic restoring member disposed between the sliding members disposed opposite to each other to restore the sliding members.

In some embodiments of the present utility model, a concave groove with an opening is arranged on the sliding component, convex columns are arranged in the concave groove, the openings of the concave grooves of the 2 sliding components are arranged oppositely, the elastic reset piece is sleeved on the 2 convex columns, and two ends respectively lean against the bottom walls of the 2 concave grooves.

In some embodiments of the present utility model, a ratchet ring gear portion is formed inside the ratchet member, an annular protrusion is formed on the strap adjusting member, the annular protrusion is located in the ratchet ring gear portion, an assembling cavity for accommodating the sliding member is formed in the annular protrusion, and the engaging tooth portion of the sliding member is engaged with the ratchet ring gear portion after penetrating out of the side wall of the assembling cavity.

In some embodiments of the present utility model, the strap adjusting member is provided with a strap gear portion engaged with the strap, the strap gear portion being located outside the ratchet ring portion.

In some embodiments of the present utility model, the toggle member includes: the toggle body piece is provided with a locking column;

the stirring hand wheel is provided with a through hole above the stirring hand wheel, and the stirring hand wheel is buckled on the stirring body piece and is fixedly connected with the stirring body piece;

the pressing part is fixed on the bandage bracket and is positioned between the poking body piece and the poking hand wheel;

and the elastic reset element is sleeved on the locking column, one end of the elastic reset element is propped against the poking hand wheel, and the other end of the elastic reset element is propped against the pressing component.

In some embodiments of the present utility model, the toggle member is inserted in the press member and is in line contact with the press member.

In some embodiments of the utility model, the toggle portion is a toggle protrusion formed at an edge of the toggle member and located within the ratchet ring portion, an end of the toggle protrusion adjacent the ratchet tooth portion abutting against a side of the ratchet arm.

The utility model provides a head-mounted device, is including back headrest, still includes above-mentioned technical scheme bandage adjusting structure, bandage support with back headrest fixed connection.

Compared with the prior art, the utility model has the advantages and positive effects that:

when the novel middle binding band adjusting structure is used, the stirring part of the stirring part is pressed on the ratchet arm of the ratchet part by screwing, so that the ratchet arm is separated from the gear ring part, the ratchet part is driven to rotate, the ratchet part can be driven to rotate, the binding band adjusting part can be driven to rotate, and the binding band adjusting part is driven to move together with the binding band to adjust the tightness of the binding band;

when the binding belt is loosened, the stirring part can be pressed, after the stirring part is pressed, the stirring part is driven to move, so that the stirring part is separated from the ratchet tooth ring part on the ratchet part, the ratchet part is separated from the binding belt adjusting part, the pretightening force on the binding belt is not transmitted to the ratchet part through the binding belt adjusting part, the ratchet part cannot slightly rotate to cause noise, and the noise is effectively avoided.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a headset according to an embodiment of the present utility model;

FIG. 2 is a second schematic structural diagram of a headset according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the strap adjustment component and strap engagement structure of the headgear of the present embodiment;

FIG. 4 is a schematic view of a strap adjustment structure according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is a schematic view of the engagement of the ratchet member and the strap adjustment member in the strap adjustment mechanism according to an embodiment of the present utility model;

FIG. 7 is a second schematic view of the configuration of the strap adjustment mechanism according to the embodiment of the present utility model in which the ratchet member and the strap adjustment member cooperate;

FIG. 8 is a schematic view of the configuration of the strap adjustment mechanism of the present utility model with the ratchet member and toggle member engaged;

FIG. 9 is a schematic view of a band adjusting means in a band adjusting arrangement in accordance with an embodiment of the present utility model;

FIG. 10 is a schematic view of a toggle member in a strap adjustment configuration according to an embodiment of the present utility model;

FIG. 11 is a schematic view of the ratchet member of the strap adjustment mechanism in accordance with an embodiment of the present utility model.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model provides an embodiment of a bandage adjusting structure, which comprises:

a band holder 100, a ring gear portion 110 being formed on the band holder 100;

the ring gear portion 110 is an annular ring gear that is carried directly on the strap mount 100.

Binding the adjustment component 200;

in some embodiments of the present utility model, the strap adjustment member 200 is a strap adjustment gear that is configured to mate with a strap.

A strap 240 in meshed engagement with the binding adjustment member 200;

the strap 240 is configured to be worn on the head of a user, and by adjusting the length of the strap, the wearing tightness of the device worn by the user can be adjusted, so that the device can be adapted to the use requirements of head users with different sizes.

To achieve engagement with strap adjustment member 200, strap teeth are disposed on strap 240, which correspondingly engage strap adjustment member 200.

A ratchet member 400 engaged with the band adjustment member 200 and the ring gear portion 110, respectively;

in some embodiments of the present utility model, the ratchet member 400 includes:

the ratchet body member 410, there are ratchet bulges in the circumference of the ratchet body member 410, there are ratchet arms 411 extending on one side of the ratchet bulges, there are ratchet teeth portions 412 on the end of the ratchet arm 411, the ratchet part 400 engages and cooperates with the gear ring portion 110 on the bandage frame 100 through the ratchet teeth portions 412, because the ratchet teeth portions 412 are unidirectional spiral, can stay in any position to realize the self-locking after making the ratchet part 400 cooperate with the gear ring portion 110, will not rebound;

a ratchet ring gear portion 420 is formed inside the ratchet body member 410, and the ratchet ring gear portion 420 is a ratchet ring gear directly integrally formed with the ratchet member 400 for engagement with the strap adjusting member 200.

When the ratchet part 400 rotates, the ratchet part can drive the strap adjusting part 200 matched with the ratchet part to rotate through the ratchet gear ring part, and further drive the length of the strap 240 to stretch and retract, so that the tightness of the strap is adjusted.

The stirring part 500 is provided with a stirring part 510 above, and can be separated from the gear ring part 110 and drive the ratchet part 400 to rotate by acting force of the stirring part 510 to the ratchet part 400 when rotating;

in some embodiments of the present utility model, the striking member 500 is a striking plate, the striking portion 510 is formed on a sidewall of one side thereof adjacent to the ratchet member 400, and the striking portion 510 is a striking protrusion formed from the striking plate.

The poking protrusion is in a bending shape and comprises a poking body section inclined to the side of the ratchet arm 411 and bending sections positioned at two ends, wherein the bending section near one end of the ratchet tooth part 412 is propped against the side surface of the ratchet arm 411, and when the poking component 500 rotates, pressure is applied to the ratchet arm 411, so that the ratchet arm 411 is stressed and deformed to drive the ratchet tooth part 412 above the ratchet arm to be separated from the gear ring part 110.

At this time, the toggle member 500 rotates to abut against and drive the ratchet member 400 to rotate, and the ratchet member 400 rotates to drive the strap adjusting member 200 to rotate.

A separation mechanism formed on the toggle member 500 and the strap adjustment member 200, capable of separating the strap adjustment member 200 and the ratchet member 400 when the toggle member 500 is pressed;

wherein, when the poking part 500 is rotated, the poking part 500 can drive the ratchet part 400 and the strap adjusting part 200 to rotate so as to adjust the length of the strap 240;

when the toggle member 500 is pressed, the toggle member 500 can drive a separation mechanism provided on the strap adjustment member 200 and the toggle member 500 to act, so as to separate the strap adjustment member 200 and the ratchet member 400.

In the strap adjusting structure in this embodiment, when in use, the toggle member 500 is screwed, the toggle portion 510 of the toggle member 500 is pressed against the ratchet arm 412 of the ratchet member 400, so that the ratchet arm 412 is separated from the gear ring 110, the ratchet member 400 is not locked, then the ratchet member 400 is driven to rotate by the toggle member 500, the ratchet member 400 and the strap adjusting member 200 are in a connection state, at this time, the ratchet member 400 rotates to drive the strap adjusting member 200 to rotate, and the strap adjusting member 200 rotates to drive the strap 240 matched with the strap to move, so as to perform strap tightness adjustment;

when the binding band is loosened, in order to prevent noise, the stirring part 500 can be pressed, and after the stirring part 500 is pressed, the separating mechanism positioned on the stirring part 500 and the binding band adjusting part 200 acts to drive the binding band adjusting part 200 to move so as to separate from the ratchet gear ring part 420 on the ratchet part 400, at this time, the ratchet part 400 and the binding band adjusting part 200 are separated, the pretightening force on the binding band 240 cannot be transmitted to the ratchet part 400 through the binding band adjusting part 200, the ratchet part 400 cannot slightly rotate to cause noise, and the noise is effectively avoided.

In some embodiments of the utility model, the separation mechanism comprises:

at least 1 set of oppositely disposed sliding members 610, each sliding member having a mating tooth portion 620 for mating with the ratchet ring portion 420, each sliding member 610 having a first inclined portion 621;

in some embodiments of the present utility model, the sliding member 610 includes a sliding body, and the mating teeth 620 are formed on one end of the sliding body in an extending manner, and the mating teeth 620 are mating teeth;

a concave groove 640 is formed on the sliding body in a concave manner, sliding arms are arranged on two sides of the concave groove 640, a first inclined part 621 is formed below the sliding arms, and the first inclined part 621 is a first inclined surface;

a raised post 650 is disposed within the recessed channel 640.

2 oppositely disposed slide members 610 with their bosses 650 oppositely disposed.

There is a space between 2 sliding members 610.

A second inclined portion 631 formed on the pressing portion 630 of the toggle member 500 and fitted to the first inclined portion 621;

the pressing part is a pressing block, and the second inclined part 631 is formed on the pressing block to be fit with the first inclined part 621, and has the same inclination as the first inclined part 621.

When the toggle member 500 is pressed, the second inclined portion 631 on the toggle member 500 applies a force to the first inclined portion 621 to drive the two oppositely disposed sliding members 610 to move towards each other so that the mating tooth portion 621 above the sliding members are separated from the ratchet ring 420;

a resilient return member 640 is disposed between the two oppositely disposed sliding members 610 to return the sliding members 610.

The elastic restoring member 640 is sleeved on the convex columns 650 of the 2 opposite sliding members 610, and two ends of the elastic restoring member respectively abut against the bottom walls of the concave grooves 640.

When the elastic reset piece is used, a pressing force can be applied to the poking part 500, the second inclined surface on the poking part 500 transmits the pressing force to the first inclined surface, the first inclined surface can slide relative to the second inclined surface, and the 2 sliding parts 610 are oppositely arranged, so that the 2 sliding parts move towards one side close to each other, the matching tooth part 620 above the 2 sliding parts are driven to be separated from the ratchet gear ring part 420, at the moment, the separation between the binding band adjusting part 200 and the ratchet part 400 is realized, and in the moving process of the 2 sliding parts 610, the elastic reset piece 640 arranged between the 2 sliding parts 610 is compressed.

When the pressing force applied to the striking member 500 is removed, the elastic restoring member 640 applies a reverse force to the sliding members 610,2 to restore the sliding members 610, and the mating tooth portions 620 of the sliding members 620 and the ratchet ring portion 420 mesh to restore, thereby realizing automatic restoration, i.e., realizing automatic restoration when the striking member 500 is not pressed any more.

When disposed, the sliding members 610 may be disposed in opposing sets disposed circumferentially along the ratchet ring 420.

In some embodiments of the present utility model, the band adjustment member 200 has an annular protrusion 210 formed thereon, the annular protrusion 210 is located in the ratchet ring gear portion 420, a fitting cavity 220 for accommodating the sliding member 610 is formed in the annular protrusion 210, and the fitting tooth portion 620 of the sliding member 610 is engaged with the ratchet ring gear portion 420 after passing through a sidewall of the fitting cavity 220.

In some embodiments of the present utility model, the strap adjusting member 200 is provided with a strap gear portion 230 engaged with the strap, and the strap gear portion 230 is located outside the ratchet ring portion 420.

The strap gear part 230 is a strap gear, and a plurality of strap gear teeth are formed at an outer side thereof to be engaged with the strap.

In some embodiments of the present utility model, the toggle member 500 includes: a toggle body member 520, wherein a locking post 530 is provided on the toggle body member 520;

a poking hand wheel 540, a via hole is formed above the poking hand wheel 540, the poking hand wheel 540 is buckled on the poking body part 520 and screwed into the locking column 530 through the via hole by a countersunk screw to be connected with the poking body part 520;

in order to ensure the overall appearance aesthetic property, the toggle hand wheel 540 is independently designed, the structures such as the ratchet wheel part 400 and the strap adjusting part 200 are all covered, the ratchet wheel part is fixed with the toggle body part 520 through one screw, and strap adjustment can be realized by directly rotating the toggle hand wheel 540.

The pressing part 800 is fixed on the strap support 100, the pressing part 800 is a pressing plate, and when connected, the pressing plate is fixed on the strap support 100 through two screws, and the pressing plate is arranged between the rotating hand wheel 540 and the stirring body piece 520.

The elastic reset element 900 is sleeved on the locking post 530, one end of the elastic reset element abuts against the poking hand wheel 540, and one end of the elastic reset element abuts against the pressing component 800.

The elastic return element 900 is a spring or a leaf spring.

In some embodiments of the present utility model,

the poking part 500 passes through the pressing part 800 to be matched with the binding band adjusting part 200, and is in line contact with the pressing part 800.

The pressing part 800 and the poking part 500 are provided with a line contact matching structure, specifically, the poking part 500 is provided with a protruding table, the pressing part 800 is provided with a through hole, the pressing part passes through Kong Waijing and is matched with the protruding table, when the poking part 500 rotates, the pressing part only contacts with the through hole through the outer side edge of the protruding table, line contact matching between the pressing part and the poking part is realized, friction is reduced during rotation, and interference is avoided during rotation.

The strap adjustment structure in this embodiment has the following advantages:

firstly, it can eliminate the noise caused by the rotation of the ratchet part 400, and solve the noise problem by using the principle of separating the strap adjusting part 200 from the ratchet part 400;

by matching the sliding part 620 of the separating mechanism with 2 inclined surfaces which are oppositely arranged on the poking part 500, the binding band adjusting part 200 and the ratchet part 400 are automatically separated after the poking part 500 is pressed down;

after separation is completed, the toggle element 500 and the sliding part 610 can be automatically reset after being released under the action of the elastic element of the elastic reset element 900, the ratchet part 400 and the gear ring part 110 can be automatically self-locked, and the rebound problem after adjustment is avoided;

since the ratchet member 400 is engaged with the ring gear portion 110, the ratchet arm 412 of the ratchet member 400 can be reset and the ring gear portion 110 can be engaged to be self-locked when the rotational adjustment is stopped, so that it can realize an arbitrary position stop function.

The wearing is convenient, the binding belt can be freely stretched under the pressing state of the poking part, and the hand wheel can be loosened after the wearer wears the head and randomly adjusts the size according to the self requirement.

The present embodiment further provides an embodiment of a headgear device, including a rear headrest 130, and further including the strap adjusting structure described in the foregoing embodiment, where the strap support 100 is fixedly connected with the rear headrest 130.

The rear head cushion 130 and the strap support 100 are fixed by screws.

The working principle of the head-mounted equipment is that: the wearer can put the head on the front module by one hand or press the front module on the forehead, and the other hand can rotate the hand wheel clockwise to tighten the binding band.

Head-wearing loosening working principle: in the tightened state, the toggle hand wheel 540 is directly pressed to release the strap 240, which is large enough to remove the product from the head, and no noise is generated at this time; when re-donned, if the amplitude is too small, the toggle hand wheel 540 may also be rotated counter-clockwise to continue to loosen the ligature 240.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A bandage adjusting structure is characterized in that,

comprises the following steps:

a strap holder on which a ring gear portion is formed;

a strap adjusting member;

a binding band engaged with the binding band adjusting member;

2. The strap adjustment mechanism of claim 1 wherein the ratchet member comprises: a ratchet body member;

a ratchet arm formed on the ratchet body member, a ratchet tooth portion provided at an end of the ratchet arm, which is engaged with the ring gear portion through the ratchet tooth portion;

a ratchet ring gear portion formed on the ratchet body member to cooperate with the strap adjustment member.

3. The strap adjustment structure of claim 2 wherein,

the separating mechanism comprises:

at least 1 group of sliding parts which are oppositely arranged, each sliding part is provided with a matched tooth part matched with the ratchet wheel gear ring part, and each sliding part is provided with a first inclined part;

4. A band adjusting mechanism according to claim 3, wherein a recessed groove having an opening is provided in the sliding member, a projecting pillar is provided in the recessed groove, the openings of the recessed grooves of the 2 sliding members are arranged opposite to each other, the elastic restoring member is fitted over the 2 projecting pillars, and both ends thereof are respectively abutted against the bottom walls of the 2 recessed grooves.

5. A strap adjustment mechanism according to claim 3 wherein the strap adjustment member has an annular projection formed thereon, the annular projection being located within the ratchet ring portion, an assembly cavity being formed within the annular projection for receiving the slide member, the mating teeth of the slide member being engaged with the ratchet ring portion after passing out of the side walls of the assembly cavity.

6. The strap adjustment structure of claim 2, wherein the strap adjustment member is provided with a strap gear portion in meshing engagement with the strap, the strap gear portion being located outside the ratchet ring portion.

7. The strap adjustment mechanism of claim 1 wherein the toggle member comprises: the toggle body piece is provided with a locking column;

8. The strap adjustment mechanism of claim 7 wherein the toggle member is inserted within the press member and is in line contact with the press member.

9. The strap adjustment mechanism of claim 2, wherein the toggle portion is a toggle protrusion formed at an edge of the toggle member, located within the ratchet ring portion, and an end of the toggle protrusion adjacent the ratchet tooth portion abuts against a side of the ratchet arm.

10. A headgear comprising a rear head pad, and further comprising a strap adjustment structure as claimed in any one of claims 1 to 9, the strap mount being fixedly connected to the rear head pad.