WO2022183728A1 - 头戴调节装置和头戴显示设备 - Google Patents
头戴调节装置和头戴显示设备 Download PDFInfo
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- WO2022183728A1 WO2022183728A1 PCT/CN2021/122013 CN2021122013W WO2022183728A1 WO 2022183728 A1 WO2022183728 A1 WO 2022183728A1 CN 2021122013 W CN2021122013 W CN 2021122013W WO 2022183728 A1 WO2022183728 A1 WO 2022183728A1
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- limit
- limiting
- head
- pushing member
- roller
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- 238000009434 installation Methods 0.000 claims description 18
- 238000013459 approach Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
Definitions
- the present application relates to the field of head-mounted devices, and in particular, to a head-mounted adjustment device and a head-mounted display device.
- Head-mounted display devices such as virtual reality headsets, augmented reality headsets, and mixed reality headsets generally include a host for displaying image information to a user and a wearing part for wearing the host on the user's head.
- the wearing part usually includes straps or side arms extending from both ends of the host to one side, the head-mounted display device is worn behind the user's head, and the straps or side arms are located on both sides of the user's head.
- the wearing part in order to fit different users, usually further includes an adjustment part for adjusting the length of the strap or the side arm to adjust the wearing tightness of the head-mounted display device.
- the main purpose of the present application is to provide a head-mounted adjustment device, which aims to avoid unnecessary noise from the head-mounted adjustment device during the adjustment process, so as to improve the user experience.
- the head-mounted adjustment device proposed in this application includes:
- two racks are arranged in parallel on the mounting shell and are slidably connected with the mounting shell;
- a limit ring sleeved on the outside of the limit shaft, the outer periphery of the limit shaft and the inner periphery of the limit ring limit a limit ring groove, and the limit ring groove includes at least one limit In the limit section, the inner periphery of the limit ring gradually approaches the outer periphery of the limit shaft;
- An annular cage is provided with a receiving groove penetrating the inner annular surface and the outer annular surface, a limit roller is rotatably arranged in the receiving groove, and in the radial direction of the annular cage, the limit roller
- the width of the ring is larger than the width of the receiving groove
- the annular cage is rotatably arranged in the limiting ring groove
- the limiting roller is located in the limiting section;
- a locking switch which is used to make the annular cage and the limit ring rotate relative to each other, so that the limit roller reaches the locking position or the free position; in the locking position, The limit roller is in contact with the limit ring and the limit shaft at the same time; in the free position, there is a gap between the limit roller and the limit ring or the limit shaft .
- the limit ring is fixedly connected to the installation housing, and the locking switch is used to drive the annular holder to rotate.
- the installation casing is provided with a pushing member, the pushing member is rotatably connected to the installation casing, and the locking switch is drivingly connected with the pushing member to drive the pushing member the piece moves between the first position and the second position;
- the annular retainer is provided with an extension arm, and the pushing member pushes against the extension arm to drive the annular retainer to rotate;
- the limiting roller When the pushing member is at the first position, the limiting roller is at the free position; when the pushing member is at the second position, the limiting roller is at the lock tight.
- a torsion spring is further connected between the pushing member and the installation housing, and the torsion spring is used to stop the pushing member from being in the first position.
- a return spring is further connected between the extension arm and the installation housing, and when the pushing member moves from the first position to the second position, the extension arm compresses the return spring;
- a connecting protrusion is provided on the inner side of the locking switch, a mounting groove is provided on the pushing member, and the connecting protrusion is clamped in the mounting groove, so that the locking switch can drive the Push pieces.
- the locking switch is further provided with a first positioning rib
- the mounting housing is provided with two second positioning ribs, when the pushing member is located at the first position and the second position , the first positioning ribs are respectively abutted against different second positioning ribs.
- the locking switch is provided with a fixed shaft, and the gear is rotatably sleeved on the fixed shaft.
- a limiting convex portion is provided on the periphery of one end of the fixed shaft away from the locking switch, and the limiting convex portion abuts on the side of the gear facing away from the locking switch.
- the fixed shaft is a hollow column structure, and the end of the fixed shaft away from the locking switch is provided with a plurality of through grooves.
- the present application also provides a head-mounted display device, including the aforementioned head-mounted adjustment device.
- the head-mounted adjustment device has a locking state and an adjustment state.
- the user can adjust the tightness of the head-mounted display device by adjusting the relative position of the rack.
- the tightness of the wearable display device is adjusted in place, the user can turn the knob to switch the adjustment state to the locked state, and the limit roller will also reach the locked position from the free position, so that the gear can be quickly and reliably locked.
- the adjustment process especially during the locking process, there will be no continuous collision between the limit roller and the limit shaft, thereby avoiding the generation of noise and improving the user experience.
- FIG. 1 is a schematic structural diagram of an embodiment of the head-wear adjusting device of the present application
- FIG. 2 is a cross-sectional view of an embodiment of the head-wear adjusting device of the present application
- FIG. 3 is a schematic structural diagram of an embodiment of the head-wear adjusting device of the present application when the pusher is in the first position;
- Fig. 4 is the sectional view of Fig. 3;
- FIG. 5 is a schematic structural diagram of an embodiment of the head-wear adjusting device of the present application when the pusher is in the second position;
- Fig. 6 is the sectional view of Fig. 5;
- FIG. 7 is a schematic diagram of the cooperation of a limit ring and a limit shaft of an embodiment of the head-wear adjusting device of the present application;
- FIG. 8 is a schematic structural diagram of an embodiment of a locking switch of the head-wear adjusting device of the present application.
- label name label name 100 Install the housing 200 gear 110 push pieces 210 Limit axis 111 mounting slot 300 Limit ring 120 Limit wheel installation groove 310 Mounting boss 130 Second positioning rib 500 ring cage 140 return spring mounting groove 510 storage tank 400 Limit ring groove 520 Limit roller 410 free bits 530 extension arm 420 Lock bit 531 Install the boss 600 lock switch 700 torsion spring 610 connection protrusion 800 return spring 620 first positioning rib 630 fixed shaft 631 Limiting protrusion 632 through slot
- the present application provides a head-mounted adjustment device.
- the head-mounted adjustment device includes:
- Two racks (not shown) are arranged on the mounting housing 100 in parallel, and are slidably connected with the mounting housing 100;
- the gear 200 is meshed between the two racks, and a limit shaft 210 is protruded from one side of the gear 200;
- the limit ring 300 is sleeved on the outside of the limit shaft 210 , the outer periphery of the limit shaft 210 and the inner periphery of the limit ring 300 limit a limit ring groove 400 , and the limit ring groove 400 includes at least one limit section, and in the limit section, the inner periphery of the limit ring 300 gradually approaches the outer periphery of the limit shaft 210;
- the annular cage 500 is provided with a receiving groove 510 penetrating the inner annular surface and the outer annular surface.
- the receiving groove 510 is rotatably provided with a limit roller 520.
- all the The width of the limiting roller 520 is greater than the width of the receiving groove 510 , the annular cage 500 is rotatably disposed in the limiting ring groove 400 , and the limiting roller 520 is located in the limiting section ;as well as
- a locking switch 600 which is used to make the annular cage 500 and the limit ring 300 rotate relative to each other, so that the limit roller 520 can reach the locking position 420 or the free position 410;
- the limiting roller 520 In the locking position 420 , the limiting roller 520 abuts against the limiting ring 300 and the limiting shaft 210 at the same time, so as to lock the gear 200 so that the two racks face each other Fixed; in the free position 410, there is a gap between the limit roller 520 and the limit ring 300 or the limit shaft 210, so that the gear 200 can rotate freely, so that the two The racks are relatively movable.
- the head-mounted display device includes a host and a head-mounted adjusting device.
- One end of the two racks is respectively fixedly connected to the host, and the other ends are both slidably connected to the mounting housing 100 .
- the rack is slidably connected to the mounting housing 100 through the guide rail chute structure.
- the housing is provided with two parallel chute The rack can slide in the chute.
- the head-mounted adjustment device can adjust the elasticity of the head-mounted display device by adjusting the relative positions of the two racks, so that the head-mounted display device is suitable for different users.
- the gear 200 is meshed between the two racks, and by locking the gear 200, the two racks can be kept relatively fixed, so that the head-mounted display device can maintain a constant tightness; releasing the gear 200, the two The racks can then move relative to each other to adjust the tightness of the headset. Specifically, after the gear 200 is released, the two racks can move toward each other or back, and the two racks move toward each other to tighten the head-mounted display device; the two racks move toward each other to loosen the head-mounted display device. display screen.
- the limit shaft 210 is protruded from one side of the gear 200 , so the gear 200 can be locked by locking the limit shaft 210 .
- a limit ring 300 is sleeved outside the limit shaft 210 to form a limit ring groove 400 , and the limit section of the limit ring groove 400 has a locking position 420 and a free position 410 .
- the limiting roller 520 is rotatably disposed in the limiting section.
- the inner peripheral edge of the limiting ring 300 gradually approaches the outer peripheral edge of the limiting shaft 210, that is, in the limiting section, the inner peripheral edge of the limiting ring 300 is inclined inwardly in the circumferential direction, so as to
- the groove width of the locking position 420 is made smaller than the groove width of the free position 410 . Therefore, when the limiting roller 520 reaches the locking position 420 , the limiting roller 520 can abut against the two groove walls of the limiting ring groove 400 .
- the limit roller 520 can abut on the limit shaft 210 and the limit ring 300 at the same time, the rotation of the limit shaft 210 will be restricted by the limit roller 520, and only the limit ring 300 and the limit
- the gear 200 can be locked; and when the limit roller 520 reaches the free position 410 , there is a gap between the limit roller 520 and the limit shaft 210 or the limit wheel. If there is a gap, the rotation of the limiting shaft 210 will not be restricted by the limiting roller 520 , that is, the gear 200 can rotate freely.
- the locking switch 600 can make the ring cage 500 and the limit ring 300 rotate relative to each other, and because the limit roller 520 can be rotatably disposed in the receiving groove 510 of the ring cage 500, the rotation locking The switch 600 can adjust the position of the limit roller 520 in the limit section. Specifically, when the user needs to adjust the tightness of the head-mounted display device, the locking switch 600 can be rotated to adjust the limit roller 520 to the free position 410, so that the gear 200 can rotate freely.
- the user can directly apply Force on the two racks to move the two racks toward or away from each other to adjust the tightness of the head-mounted display device; when the tightness of the head-mounted display device is adjusted in place, the user can turn the locking switch 600 again to The limit roller 520 is adjusted to the locking position 420, so that the gear 200 is locked. At this time, the two racks will remain relatively fixed, and the tightness of the head-mounted display device will also remain constant.
- the ratchet wheel is used to cooperate with the installation housing to lock the ratchet wheel, wherein the ratchet wheel and the gear rotate coaxially, and the gear can be locked by locking the ratchet wheel.
- the ratchet wheel is in constant contact with the teeth on the mounting shell, especially when the knob is released, the ratchet wheel rotates rapidly, and the ratchet teeth will continuously collide with the teeth on the mounting shell, and the continuous
- the harsh noise greatly affects the user experience.
- the head-mounted adjustment device has a locked state and an adjustment state.
- the user can adjust the tightness of the head-mounted display device by adjusting the relative position of the rack.
- the tightness of the wearable display device is adjusted in place, the user can turn the locking switch to switch the adjustment state to the locking state, and the limit roller 520 will also reach the locking position 420 from the free position 410, so that the user can quickly
- the gear 200 is securely locked.
- the adjustment process especially during the locking process, there will be no continuous collision between the limit roller 520 and the limit shaft 210, thereby avoiding the generation of noise, thereby improving the user experience. user experience.
- the limiting ring 300 is fixedly connected to the mounting housing 100 , and the locking switch 600 is used to drive the annular holder 500 to rotate , so as to realize the relative movement between the annular cage 500 and the limiting ring 300 .
- the outer periphery of the limit ring 300 is provided with three installation protrusions 310 at intervals, and the installation housing 100 is provided with three limit wheel mounting grooves 120 correspondingly. The matching of the wheel mounting grooves 120 enables the limiting ring 300 to be fixedly mounted on the mounting housing 100 .
- the locking switch 600 drives the ring cage 500 to rotate, the ring cage 500 can drive the limit roller 520 to rotate, and the limit roller 520 can move to the locking position 420 or the free position 410 to lock the gear 200 Or release gear 200.
- the annular cage 500 can also be fixedly connected to the installation housing 100 , and the locking switch 600 can drive the limit ring 300 to rotate, so that the limit segment can also be relative to the limit roller 520 The movement makes the locking position 420 or the free position 410 approach the limiting roller 520 , so as to achieve the purpose of locking the gear 200 or releasing the gear 200 .
- the installation housing 100 is provided with a pushing member 110 , and the pushing member 110 is rotatably connected to the installation housing 100 .
- the locking switch 600 is drivingly connected with the pushing member 110 to drive the pushing member 110 to move between the first position and the second position; the annular holder 500 is provided with an extension arm 530, the pushing The pushing member 110 pushes against the extension arm 530 to drive the annular cage 500 to rotate; when the pushing member 110 is at the first position, the limiting roller 520 is at the free position 410; When the pushing member 110 is located at the second position, the limiting roller 520 is located at the locking position 420 .
- the locking switch 600 indirectly drives the annular holder 500 .
- a rotatable abutting member 110 is provided on the mounting housing 100 , and one end of the abutting member 110 is used for driving the locking switch 600
- One end is used to push against the extension arm 530 on the ring holder 500 , and therefore, the ring holder 500 can be driven by the pushing member 110 by turning the locking switch 600 .
- the annular cage 500 Under the driving of the locking switch 600, when the abutting member 110 reaches the first position, the annular cage 500 also reaches the corresponding position, so that the limit roller 520 is located at the free position 410. At this time, the user can adjust it adaptively.
- the tightness of the head-mounted display device when the abutting member 110 reaches the second position, the annular cage 500 also reaches the corresponding position, so that the limiting roller 520 is located at the locking position 420, at this time, the tightness of the head-mounted display device can remain constant.
- the locking switch 600 can also be fixedly connected directly with the ring holder 500 to directly drive the ring holder 500 to rotate.
- a torsion spring 700 is also connected between the pushing member 110 and the installation housing 100 , and the torsion spring 700 is used to resist the The pushing member 110 is in the first position.
- the pushing member 110 moves counterclockwise from the second position to the first position, and during the movement of the pushing member 110 , the torsion spring 700 acts as a limiter to limit the pushing member 110 .
- the pusher 110 continues to move counterclockwise beyond the first position, so as to prevent the ring cage 500 from excessively pressing the limit roller 520 at the locking position 420 , causing the limit roller 520 to be stuck in the limit ring groove 400 or Damage to the structure of internal components.
- a return spring 800 is also connected between the extension arm 530 and the installation housing 100 , and the pushing member 110 starts from the first When a position moves to the second position, the extension arm 530 compresses the return spring 800; when the pusher 110 moves from the second position to the first position, the return spring 800 Release to push the extension arm 530 , so that the extension arm 530 resists the pushing member 110 at the second position.
- the pushing portion is limited to the first position and the second position by the cooperative action of the return spring 800 and the torsion spring 700 . It can be understood that in the first position or the second position, the extension arm 530 abuts against the abutting member 110.
- the force of the return spring 800 can be transmitted to the abutting member 110 through the extension arm 530, and the return spring 800 and the torsion
- the springs 700 will respectively generate torques of the same magnitude but opposite directions to the abutting members 110 , so that the abutting members 110 can be stably in the first position or the second position without being acted on by an external force.
- the extension arm 530 is provided with a mounting post 531
- the installation housing 100 is provided with a return spring mounting groove 140
- the return spring 800 is sleeved on the mounting post 531 and accommodated in the return spring mounting groove 140 .
- the inelastic deformation of the return spring 800 during the movement of the extension arm 530 is avoided, which affects the function of the return spring 800 .
- other limiting structures may also be provided on the mounting housing 100 to directly limit the locking switch 600, that is, the pushing member may be indirectly limited to the first position or the second position. Location.
- the locking switch 600 is provided with a connecting convex portion 610 inside, and the pushing member 110 is provided with a mounting groove 111 .
- the protruding portion 610 is clamped in the mounting slot 111 , so that the locking switch 600 can drive the pushing member 110 .
- the head-mounted display device can be switched to the adjustment state or the locking state correspondingly.
- the fixed connection between the locking switch 600 and the pushing member 110 is realized by the cooperation of the mounting convex portion 310 and the mounting groove 111 .
- the pushing member 110 can also be riveted or screwed. It is fixedly connected to the locking switch 600 by means of locking or the like.
- the locking switch 600 is further provided with a first positioning rib 620
- the installation housing 100 is provided with two second positioning ribs 130 .
- the rotation of the locking switch 600 can make The first positioning ribs 620 move between the two second positioning ribs 130 .
- the first positioning ribs 620 are respectively Resist the different second positioning ribs 130 . In this way, when the user turns the locking switch 600 so that the first positioning ribs 620 abut against different second positioning ribs 130 , the pushing member 110 is simultaneously positioned to the first position or the second position.
- the user can receive feedback, and can instantly perceive that the head-mounted adjusting device has been switched to a different state, thereby further improving the user's use experience.
- the first positioning rib 620 is disposed on the inner side of the locking switch 600 , so that the appearance of the head-mounted type is more concise and beautiful.
- other positioning structures may also be provided on the mounting housing 100 to directly position the pushing member 110 .
- the locking switch 600 is provided with a fixed shaft 630 , and the gear 200 is rotatably sleeved on the fixed shaft 630 , so that the fixed shaft 630 can be simultaneously It acts as a rotation shaft of the lock switch 600 and the gear 200, so that the lock switch 600 and the gear 200 can rotate smoothly.
- the locking switch 600 and the gear 200 may also be connected to the installation housing 100 by means of annular groove rails, respectively, which can also make the locking switch 600 and the gear 200 rotate smoothly.
- a limiting protrusion 631 is provided on the periphery of one end of the fixing shaft 630 away from the locking switch 600 , and the limiting protrusion 631 abuts against On the side of the gear 200 away from the locking switch 600, the gear 200 is prevented from coming out of the fixed shaft 630, thereby improving the connection stability of the internal components of the headgear adjusting device;
- the fixed shaft 630 is hollow
- the end of the fixed shaft 630 away from the locking switch 600 is provided with a plurality of through grooves 632 to leave a deformation allowance at the end of the fixed shaft 630 to facilitate the gear 200 to be assembled on the fixed shaft 630 from this end superior.
- the fixed shaft 630 may not be provided with a limit protrusion or a through groove, but a limit buckle is added. In this way, the gear 200 can be easily assembled on the fixed shaft 630, and then The limit buckle is engaged with the fixed shaft 630 to restrict the gear 200 from being separated from the fixed shaft 630 .
- the present application also proposes a head-mounted display device, the head-mounted display device includes a head-mounted adjustment device, and the specific structure of the head-mounted adjustment device refers to the above-mentioned embodiment, because the head-mounted display device adopts all the technologies of all the above-mentioned embodiments. Therefore, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here.
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Abstract
本申请公开一种头戴调节装置和头戴显示设备，其中，头戴调节装置包括：安装壳体；两个齿条，相并行设置于安装壳体，并与安装壳体滑动连接；齿轮，啮合于两个齿条之间，且其一面凸设有限位轴；限位环，套设于限位轴外，限位轴的外周缘与限位环的内周缘形成限位环槽；环形保持架，设有收容槽，收容槽内可转动地设有限位滚子，环形保持架可转动地设于限位环槽；以及锁紧开关，用以使环形保持架与限位环发生相对转动，从而使限位滚子到达锁紧位或自由位；于锁紧位，限位滚子同时抵接于限位环和限位轴；于自由位，限位滚子与限位环或限位轴之间具有间隙。本申请技术方案旨在避免头戴调节装置在调节过程中发出不必要的噪音，以提升用户的使用体验。
Description
本申请要求于2021年3月2日提交中国专利局、申请号为202110232370.8、发明名称为“头戴调节装置和头戴显示设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及头戴式设备领域，特别涉及一种头戴调节装置和头戴显示设备。
虚拟现实头戴设备、增强现实头戴设备以及混合现实头戴设备等头戴显示设备，通常包括用于向用户展示图像信息的主机以及用于将主机佩戴于用户头部的佩戴部。
佩戴部通常包括从主机两端向一侧延伸的绑带或者侧臂，头戴显示设备佩戴于用户头部之后、绑带或者侧臂位于用户头部两侧。鉴于不同用户的头围不同，为适配不同用户佩戴，佩戴部通常还包括用于调节绑带或者侧臂长度以调节头戴显示设备佩戴松紧度的调节部。
目前，调节部大多采用棘轮与齿轮配合的结构，棘轮与安装壳体配合。但是，在调节过程中，棘轮与安装壳体上的齿不断触碰、带来不必要的噪音。
发明内容
本申请的主要目的是提出一种头戴调节装置，旨在避免头戴调节装置在调节过程中发出不必要的噪音，以提升用户的使用体验。
为实现上述目的，本申请提出的头戴调节装置，包括：
安装壳体；
两个齿条，相并行设置于所述安装壳体，并与所述安装壳体滑动连接；
齿轮，啮合于两个所述齿条之间，且所述齿轮的一面凸设有限位轴；
限位环，套设于所述限位轴外，所述限位轴的外周缘与所述限位环的内周缘限位出限位环槽，所述限位环槽包括至少一限位段，于所述限位段，所 述限位环的内周缘逐渐靠近所述限位轴的外周缘；
环形保持架，设有贯穿内环面和外环面的收容槽，所述收容槽内可转动地设有限位滚子，在所述环形保持架的径向方向上，所述限位滚子的宽度大于所述收容槽的宽度，所述环形保持架可转动地设于所述限位环槽，且所述限位滚子位于所述限位段；以及
锁紧开关，所述锁紧开关用以使所述环形保持架与所述限位环发生相对转动，从而使所述限位滚子到达锁紧位或自由位；于所述锁紧位，所述限位滚子同时抵接于所述限位环和所述限位轴；于所述自由位，所述限位滚子与所述限位环或所述限位轴之间具有间隙。
可选地，所述限位环固定连接于所述安装壳体，所述锁紧开关用于驱动所述环形保持架转动。
可选地，所述安装壳体设有抵推件，所述抵推件可转动连接于所述安装壳体，所述锁紧开关与所述抵推件驱动连接，以驱动所述抵推件在第一位置和第二位置之间运动；
所述环形保持架设有延长臂，所述抵推件抵推所述延长臂，以驱动所述环形保持架转动；
当所述抵推件位于所述第一位置时，所述限位滚子位于所述自由位；当所述抵推件位于所述第二位置时，所述限位滚子位于所述锁紧位。
可选地，所述抵推件和所述安装壳体之间还连接有扭簧，所述扭簧用于抵止所述抵推件于所述第一位置。
可选地，所述延长臂与所述安装壳体之间还连接有复位弹簧，在所述抵推件自所述第一位置向所述第二位置运动时，所述延长臂压缩所述复位弹簧；
在所述抵推件自所述第二位置向所述第一位置运动时，所述复位弹簧释放，以推动所述延长臂，从而使所述延长臂抵止所述抵推件于所述第二位置。
可选地，所述锁紧开关内侧设有连接凸部，所述抵推件设有安装槽，所述连接凸部卡设于所述安装槽，以使所述锁紧开关能驱动所述抵推件。
可选地，所述锁紧开关还设有第一定位筋，所述安装壳体设有两条第二定位筋，在所述抵推件位于所述第一位置和所述第二位置时，所述第一定位筋分别抵止于不同的所述第二定位筋。
可选地，所述锁紧开关设有固定轴，所述齿轮转动套设于所述固定轴。
可选地，所述固定轴远离所述锁紧开关的一端的周缘设有限位凸部，所述限位凸部抵接于所述齿轮背离所述锁紧开关的一面。
可选地，所述固定轴为空心柱结构，且所述固定轴远离所述锁紧开关的一端设有多个通槽。
本申请还提出一种头戴显示设备，包括前述的头戴调节装置。
在本申请技术方案中，头戴调节装置具有锁紧状态和调节状态，当头戴调节设备处于调节状态，用户可通过调节齿条的相对位置来调节头戴显示设备的松紧度，而当头戴显示设备的松紧度调节到位时，用户可转动旋钮，以将调节状态切换至锁紧状态，限位滚子也将从自由位到达锁紧位，如此，即可快速地使齿轮被可靠锁紧，在调节过程中、尤其在锁紧过程中，限位滚子与限位轴之间不会发生连续碰撞，由此避免了噪音的产生，从而提升了用户的使用体验。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一部分附图，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请头戴调节装置一实施例的结构示意图；
图2为本申请头戴调节装置一实施例的剖视图；
图3为本申请头戴调节装置在抵推件处于第一位置时的一实施例的结构示意图；
图4为图3的剖面图；
图5为本申请头戴调节装置在抵推件处于第二位置时的一实施例的结构示意图；
图6为图5的剖面图；
图7为本申请头戴调节装置的限位环和限位轴一实施例的配合示意图；
图8为本申请头戴调节装置的锁紧开关一实施例的结构示意图。
附图标号说明：
| 标号 | 名称 | 标号 | 名称 |
| 100 | 安装壳体 | 200 | 齿轮 |
| 110 | 抵推件 | 210 | 限位轴 |
| 111 | 安装槽 | 300 | 限位环 |
| 120 | 限位轮安装槽 | 310 | 安装凸部 |
| 130 | 第二定位筋 | 500 | 环形保持架 |
| 140 | 复位弹簧安装槽 | 510 | 收容槽 |
| 400 | 限位环槽 | 520 | 限位滚子 |
| 410 | 自由位 | 530 | 延长臂 |
| 420 | 锁紧位 | 531 | 安装凸柱 |
| 600 | 锁紧开关 | 700 | 扭簧 |
| 610 | 连接凸部 | 800 | 复位弹簧 |
| 620 | 第一定位筋 | 630 | 固定轴 |
| 631 | 限位凸部 | 632 | 通槽 |
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，若全文中出现的“和/或”的 含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种头戴调节装置。
在本申请一实施例中，如图1、图2、图4、图6和图7所示，该头戴调节装置，包括：
安装壳体100；
两个齿条(未图示)，相并行设置于所述安装壳体100，并与所述安装壳体100滑动连接；
齿轮200，啮合于两个所述齿条之间，且所述齿轮200的一面凸设有限位轴210；
限位环300，套设于所述限位轴210外，所述限位轴210的外周缘与所述限位环300的内周缘限位出限位环槽400，所述限位环槽400包括至少一限位段，于所述限位段，所述限位环300的内周缘逐渐靠近所述限位轴210的外周缘；
环形保持架500，设有贯穿内环面和外环面的收容槽510，所述收容槽510内可转动地设有限位滚子520，在所述环形保持架500的径向方向上，所述限位滚子520的宽度大于所述收容槽510的宽度，所述环形保持架500可转动地设于所述限位环槽400，且所述限位滚子520位于所述限位段；以及
锁紧开关600，所述锁紧开关600用以使所述环形保持架500与所述限位环300发生相对转动，从而使所述限位滚子520到达锁紧位420或自由位410；于所述锁紧位420，所述限位滚子520同时抵接于所述限位环300和所述限位轴210，以锁紧所述齿轮200，从而使两个所述齿条相对固定；于所述自由位410，所述限位滚子520与所述限位环300或所述限位轴210之间具有间隙，而使所述齿轮200可自由转动，从而使两个所述齿条可相对运动。
可以理解，头戴显示设备包括主机及头戴调节装置，两个齿条的其中一端分别固定连接于主机，另一端均与安装壳体100滑动连接。不失一般性，齿条通过导轨滑槽结构滑动连接于安装壳体100，具体地，所述壳体上设有 两条相并行的滑槽，齿条上对应设有导轨，如此，两个齿条能于滑槽内滑动。头戴调节装置可通过调节两个齿条的相对位置，以调节头戴显示设备的松紧，从而使头戴显示设备适用于不同的用户。
在本申请中，齿轮200啮合于两个齿条之间，锁紧齿轮200，即可使两齿条保持相对固定，以使该头戴显示设备维持在恒定的松紧度；释放齿轮200，两齿条即可发生相对运动，以对头戴显示设备的松紧度进行调节。具体地，齿轮200释放后，两个齿条可相向运动或相背运动，两个齿条相向运动，即可调紧头戴显示设备；两个齿条相背运动，即可调松头戴显示设备。
在本申请中，齿轮200的一面凸设有限位轴210，因此，可通过锁紧限位轴210来锁紧齿轮200。具体地，如图7所示，限位轴210外间隔套设有限位环300，以形成限位环槽400，而限位环槽400的限位段具有锁紧位420和自由位410，限位滚子520可滚动地设于限位段内。其中，在限位段内，限位环300的内周缘逐渐靠近限位轴210的外周缘，也即，在限位段内，限位环300的内周缘在周向上朝内倾斜延伸，以使锁紧位420的槽宽小于自由位410的槽宽，因此，当限位滚子520到达锁紧位420，即可使限位滚子520抵接于限位环槽400的两槽壁，也即限位滚子520能同时抵接于限位轴210及限位环300，限位轴210的转动将受到限位滚子520的限制，只需另使限位环300及限位滚子520与所述安装壳体100保持相对静止，即可锁紧齿轮200；而当限位滚子520到达自由位410，限位滚子520与限位轴210或限位轮之间留有间隙，限位轴210的转动不会受到限位滚子520的限制，也即齿轮200可自由转动。
在本申请中，锁紧开关600可使环形保持架500与限位环300发生相对转动，又因限位滚子520可转动设于环形保持架500的收容槽510内，因此，转动锁紧开关600，即可调整限位滚子520在限位段中的位置。具体地，当用户需要调整头戴显示设备的松紧时，可转动锁紧开关600，以将限位滚子520调整至自由位410，从而使齿轮200可自由转动，此时，用户可直接施力于两个齿条，使两个齿条相向运动或相背运动，以调节头戴显示设备的松紧度；当头戴显示设备的松紧调节到位时，用户可再次转动锁紧开关600，以将限位滚子520调整至锁紧位420，从而使齿轮200被锁紧，此时，两个齿条将维持相对固定，头戴显示设备的松紧度也将保持恒定。
现有技术中，采用棘轮与安装壳体配合，以锁紧棘轮，其中，棘轮与齿轮同轴转动，锁紧棘轮即可锁紧齿轮。但是，在调节过程中，棘轮与安装壳体上的齿不断触碰、尤其是当旋钮松开的瞬间，棘轮快速转动，棘齿将会与安装壳体上的齿连续碰撞，并伴随着连续的刺耳的噪音，极大地影响了用户的使用体验。
而在本申请中，头戴调节装置具有锁紧状态和调节状态，当头戴调节装置具处于调节状态，用户可通过调节齿条的相对位置来调节头戴显示设备的松紧度，而当头戴显示设备的松紧度调节到位时，用户可转动锁紧开关，以将调节状态切换至锁紧状态，限位滚子520也将从自由位410到达锁紧位420，如此，即可快速地使齿轮200被可靠锁紧，在调节过程中、尤其在锁紧过程中，限位滚子520与限位轴210之间不会发生连续碰撞，由此避免了噪音的产生，从而提升了用户的使用体验。
进一步地，在本实施例中，如图3和图5所示，所述限位环300固定连接于所述安装壳体100，所述锁紧开关600用于驱动所述环形保持架500转动，以实现环形保持架500与限位环300的相对运动。不失一般性，本实施例中，限位环300的外周缘间隔设有三个安装凸部310，安装壳体100上对应设有三个限位轮安装槽120，通过安装凸部310与限位轮安装槽120的配合，以使限位环300固定安装于安装壳体100。如此，锁紧开关600驱动环形保持架500转动，环形保持架500即可带动限位滚子520转动，限位滚子520即可运动到锁紧位420或自由位410，以锁紧齿轮200或释放齿轮200。当然，在其他实施例中，也可以是，环形保持架500固定连接于安装壳体100，锁紧开关600可驱动限位环300转动，如此，限位段同样也可相对限位滚子520运动，以使锁紧位420或自由位410向限位滚子520靠近，从而实现锁紧齿轮200或释放齿轮200的目的。
进一步地，在本实施例中，如图3和图5所示，所述安装壳体100设有抵推件110，所述抵推件110可转动连接于所述安装壳体100，所述锁紧开关600与所述抵推件110驱动连接，以驱动所述抵推件110在第一位置和第二位置之间运动；所述环形保持架500设有延长臂530，所述抵推件110抵推所述延长臂530，以驱动所述环形保持架500转动；当所述抵推件110位于所述第一位置时，所述限位滚子520位于所述自由位410；当所述抵推件110 位于所述第二位置时，所述限位滚子520位于所述锁紧位420。本实施例中，锁紧开关600间接地驱动环形保持架500，具体地，安装壳体100上设有一可转动的抵推件110，该抵推件110的一端用以供锁紧开关600驱动连接，一端用以抵推环形保持架500上的延长臂530，因而，转动锁紧开关600，即可通过抵推件110驱动环形保持架500。而在锁紧开关600的驱动下，当抵推件110到达第一位置时，环形保持架500也到达相应位置，以使限位滚子520位于自由位410，此时，用户可适应性调整头戴显示设备的松紧度；当抵推件110到达第二位置时，环形保持架500也到达相应位置，以使限位滚子520位于锁紧位420，此时，头戴显示设备的松紧度能够维持恒定。当然，在其他实施例中，也可以是，锁紧开关600直接与环形保持架500固定连接，直接驱动环形保持架500转动。
进一步地，在本实施例中，如图3和图5所示，所述抵推件110和所述安装壳体100之间还连接有扭簧700，所述扭簧700用于抵止所述抵推件110于所述第一位置。不失一般性，本实施例中，抵推件110从第二位置通过逆时针运动至第一位置，而在抵推件110的运动过程中，扭簧700起到限位作用，以限制抵推件110越过第一位置继续逆时针运动，从而避免环形保持架500在锁紧位420对限位滚子520过度挤压，而造成限位滚子520卡死于限位环槽400内或对内部部件的结构产生破坏。
进一步地，在本实施例中，如图3和图5所示，所述延长臂530与所述安装壳体100之间还连接有复位弹簧800，在所述抵推件110自所述第一位置向所述第二位置运动时，所述延长臂530压缩所述复位弹簧800；在所述抵推件110自所述第二位置向所述第一位置运动时，所述复位弹簧800释放，以推动所述延长臂530，从而使所述延长臂530抵止所述抵推件110于所述第二位置。本实施例中，通过复位弹簧800与扭簧700的共同作用，以将抵推部限位于第一位置和第二位置。可以理解，在第一位置或第二位置，延长臂530均抵接于抵推件110，因此，复位弹簧800的作用力能够通过延长臂530传递至抵推件110，而复位弹簧800和扭簧700将分别对抵推件110产生大小相等但方向相反的扭矩，因此，在不受到外力作用的情况下，抵推件110能稳定处于第一位置或第二位置。可选地，延长臂530上设有安装凸柱531，安装壳体100上设有复位弹簧安装槽140，复位弹簧800套设于安装凸柱531， 并收容于复位弹簧安装槽140内，以避免复位弹簧800在延长臂530的运动过程中发生非弹性形变，影响复位弹簧800发挥作用。当然，在其他实施例中，也可以是，安装壳体100上设有其他限位结构，直接对锁紧开关600进行限位，即可间接地将抵推件限位于第一位置或第二位置。
进一步地，在本实施例中，如图3、图5和图8所示，所述锁紧开关600内侧设有连接凸部610，所述抵推件110设有安装槽111，所述连接凸部610卡设于所述安装槽111，以使所述锁紧开关600能驱动所述抵推件110。锁紧开关600驱动抵推件110到达第一位置或第二位置时，即可使头戴显示设备对应切换至调节状态或锁紧状态。本实施例中，通过安装凸部310与安装槽111的配合，来实现锁紧开关600与抵推件110的固定连接，当然，在其他实施例中，抵推件110也可通过铆接或螺钉锁附等方式与锁紧开关600固定连接。
进一步地，在本实施例中，所述锁紧开关600还设有第一定位筋620，所述安装壳体100设有两条第二定位筋130，所述锁紧开关600转动，可使所述第一定位筋620在两条所述第二定位筋130之间运动，在所述抵推件110位于所述第一位置和所述第二位置时，所述第一定位筋620分别抵止于不同的所述第二定位筋130。如此，当用户转动锁紧开关600，以致第一定位筋620抵接于不同的第二定位筋130，抵推件110即会同步定位至第一位置或第二位置。而当第一定位筋620抵接于不同的第二定位筋130时，用户均能够接受到反馈，而能即时感知到该头戴调节装置已切换至不同的状态，从而进一步提升了用户的使用体验。不失一般性，本实施例中，第一定位筋620设于锁紧开关600的内侧，以使该头戴式的外观更简洁美观。当然，在其他实施例中，也可以是，安装壳体100上设有其他的定位结构，以直接对抵推件110进行定位。
进一步地，在本实施例中，如图2和图8所示，所述锁紧开关600设有固定轴630，所述齿轮200转动套设于所述固定轴630，以使固定轴630同时充当锁紧开关600和齿轮200的转动轴，而使锁紧开关600和齿轮200能够平稳转动。当然，在其他实施例中，也可以是，锁紧开关600和齿轮200分别通过环形槽轨配合的方式连接于安装壳体100，同样可使锁紧开关600和齿轮200平稳转动。
进一步地，在本实施例中，如图2和图8所示，所述固定轴630远离所述锁紧开关600的一端的周缘设有限位凸部631，所述限位凸部631抵接于所述齿轮200背离所述锁紧开关600的一面，以避免齿轮200从固定轴630上脱出，从而提升该头戴调节装置内部部件的连接稳定性；进一步地，所述固定轴630为空心柱结构，且所述固定轴630远离所述锁紧开关600的一端设有多个通槽632，以在固定轴630该端留有变形余量，方便齿轮200从该端装配于固定轴630上。当然，在其他实施例中，也可以是，固定轴630上不设有限位凸部或通槽，而是增设一限位卡扣，如此，齿轮200能方便地装配于固定轴630上，再通过该限位卡扣与固定轴630卡合，以限制齿轮200自脱离固定轴630。
本申请还提出一种头戴显示设备，该头戴显示设备包括头戴调节装置，该头戴调节装置的具体结构参照上述实施例，由于本头戴显示设备采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
本说明书中各个实施例采用并列或者递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处可参见方法部分说明。
Claims (10)
- 一种头戴调节装置，其特征在于，包括：安装壳体；两个齿条，相并行设置于所述安装壳体，并与所述安装壳体滑动连接；齿轮，啮合于两个所述齿条之间，且所述齿轮的一面凸设有限位轴；限位环，套设于所述限位轴外，所述限位轴的外周缘与所述限位环的内周缘限位出限位环槽，所述限位环槽包括至少一限位段，于所述限位段，所述限位环的内周缘逐渐靠近所述限位轴的外周缘；环形保持架，设有贯穿内环面和外环面的收容槽，所述收容槽内可转动地设有限位滚子，在所述环形保持架的径向方向上，所述限位滚子的宽度大于所述收容槽的宽度，所述环形保持架可转动地设于所述限位环槽，且所述限位滚子位于所述限位段；以及锁紧开关，所述锁紧开关用以使所述环形保持架与所述限位环发生相对转动，从而使所述限位滚子到达锁紧位或自由位；于所述锁紧位，所述限位滚子同时抵接于所述限位环和所述限位轴；于所述自由位，所述限位滚子与所述限位环或所述限位轴之间具有间隙。
- 如权利要求1所述的头戴调节装置，其特征在于，所述限位环固定连接于所述安装壳体，所述锁紧开关用于驱动所述环形保持架转动。
- 如权利要求2所述的头戴调节装置，其特征在于，所述安装壳体设有抵推件，所述抵推件可转动连接于所述安装壳体，所述锁紧开关与所述抵推件驱动连接，以驱动所述抵推件在第一位置和第二位置之间运动；所述环形保持架设有延长臂，所述抵推件抵推所述延长臂，以驱动所述环形保持架转动；当所述抵推件位于所述第一位置时，所述限位滚子位于所述自由位；当所述抵推件位于所述第二位置时，所述限位滚子位于所述锁紧位。
- 如权利要求3所述的头戴调节装置，其特征在于，所述抵推件和所述安装壳体之间还连接有扭簧，所述扭簧用于抵止所述抵推件于所述第一位置。
- 如权利要求3所述的头戴调节装置，其特征在于，所述延长臂与所述安装壳体之间还连接有复位弹簧，在所述抵推件自所述第一位置向所述第二位置运动时，所述延长臂压缩所述复位弹簧；在所述抵推件自所述第二位置向所述第一位置运动时，所述复位弹簧释放，以推动所述延长臂，从而使所述延长臂抵止所述抵推件于所述第二位置。
- 如权利要求3所述的头戴调节装置，其特征在于，所述锁紧开关内侧设有连接凸部，所述抵推件设有安装槽，所述连接凸部卡设于所述安装槽，以使所述锁紧开关能驱动所述抵推件。
- 如权利要求3所述的头戴调节装置，其特征在于，所述锁紧开关还设有第一定位筋，所述安装壳体设有两条第二定位筋，在所述抵推件位于所述第一位置和所述第二位置时，所述第一定位筋分别抵止于不同的所述第二定位筋。
- 如权利要求1至7任一项所述的头戴调节装置，其特征在于，所述锁紧开关设有固定轴，所述齿轮转动套设于所述固定轴。
- 如权利要求8所述的头戴调节装置，其特征在于，所述固定轴远离所述锁紧开关的一端的周缘设有限位凸部，所述限位凸部抵接于所述齿轮背离所述锁紧开关的一面；和/或，所述固定轴为空心柱结构，且所述固定轴远离所述锁紧开关的一端设有多个通槽。
- 一种头戴显示设备，其特征在于，包括权利要求1至9任一项所述的头戴调节装置。
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