WO2018192422A1 - 自锁机构及包括自锁机构的电子设备 - Google Patents

自锁机构及包括自锁机构的电子设备 Download PDF

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Publication number
WO2018192422A1
WO2018192422A1 PCT/CN2018/082994 CN2018082994W WO2018192422A1 WO 2018192422 A1 WO2018192422 A1 WO 2018192422A1 CN 2018082994 W CN2018082994 W CN 2018082994W WO 2018192422 A1 WO2018192422 A1 WO 2018192422A1
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WO
WIPO (PCT)
Prior art keywords
knob
self
locking mechanism
hole
housing
Prior art date
Application number
PCT/CN2018/082994
Other languages
English (en)
French (fr)
Inventor
田文红
马占山
孙志宇
陈东
张�浩
陈丽莉
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/326,112 priority Critical patent/US11086351B2/en
Publication of WO2018192422A1 publication Critical patent/WO2018192422A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
    • G05G5/14—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like
    • G05G5/18—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like by positive interengagement, e.g. by a pawl
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H2035/005—Gearings or mechanisms preventing back-driving
    • 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
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G2505/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member

Definitions

  • the present disclosure relates to the field of self-locking technology, and in particular, to a self-locking mechanism and an electronic device including the self-locking mechanism.
  • a VR (Virtual Reality) helmet product is provided with a eye distance or object distance adjustment mechanism for adjusting the distance of the objective lens or the eyepiece.
  • the eye distance or object distance adjustment mechanism in the related art VR helmet product uses a gear adjustment mechanism.
  • the gear mechanism of the related art often has a knob reversal when it collides with the adjustment mechanism, which causes a problem that the rack stroke retreats, thereby affecting the user's use effect.
  • Embodiments of the present disclosure provide a self-locking mechanism and an electronic device including the self-locking mechanism.
  • An aspect of the present disclosure provides a self-locking mechanism including: a housing having a through hole and a escape hole; and an elastic member connected to the hole wall of the escape hole is disposed in the escape hole, The free end of the elastic member is swingable in the thickness direction of the housing, the elastic member is provided with a first engaging member, a knob disposed on the outer side of the housing, and one end of the knob passes through
  • the through hole is provided with a plurality of second engaging members on a side of the knob near the housing; and the first engaging member is deformed by the elastic member and the second portion as the knob rotates
  • the latching member is engaged or disengaged; the follower member is disposed on the inner side of the housing and is fixedly coupled to the knob for rotating under the driving of the knob.
  • the plurality of second clips are equidistant from the center of rotation of the knob.
  • the follower is a gear; the number of teeth on the gear is an integer multiple of the number of the second clips.
  • the number of teeth on the gear is equal to the number of the second clips.
  • the self-locking mechanism further includes a rack; the rack meshes with the gear, and the gear rotation can drive the rack to move.
  • the knob and the gear are fixedly connected by screws.
  • the first clip is a protrusion and the second clip is a groove.
  • the first clip is a hemispherical protrusion and the second clip is a hemispherical groove.
  • the elastic member is integrally formed with the housing.
  • the elastic member is a strip-shaped elastic piece, the longitudinal direction of the strip-shaped elastic piece faces the center of rotation of the knob, and the free end of the strip-shaped elastic piece extends to the edge of the through hole .
  • the other end of the strip-shaped elastic piece except the free end is connected to the wall of the escape hole.
  • the self-locking mechanism further includes a limiting ring disposed at an edge of the through hole and adjacent to a side of the knob; the limiting ring includes a first portion and a second portion that are disconnected from each other The first portion is disposed on the housing, and the second portion is disposed on a free end of the strip-shaped elastic piece; wherein the first engaging member is located on the second portion.
  • the limit ring mates with an end of the knob that passes through the through hole.
  • the escape hole is in communication with the through hole.
  • Another aspect of the present disclosure provides an electronic device, the above self-locking mechanism.
  • FIG. 1 is a schematic structural view of a related art adjustment structure
  • FIG. 2 is a schematic structural diagram of a self-locking structure according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural view of a housing in a self-locking structure according to an embodiment of the present disclosure
  • FIG. 4 is a side view of a side of a knob in a self-locking structure near a housing according to an embodiment of the present disclosure
  • FIG. 5 is another schematic structural diagram of a self-locking structure according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural view of a gear and a rack provided by an embodiment of the present disclosure.
  • FIG. 7 is still another schematic structural diagram of a self-locking structure according to an embodiment of the present disclosure.
  • FIG. 8 is still another schematic structural diagram of a self-locking structure according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural view of a through hole having a limiting ring of a housing according to an embodiment of the present disclosure.
  • the knob 10 is disposed outside the casing 20, the gear 30 is disposed inside the casing 20, and the knob 10 is fixedly coupled to the gear 30 through a through hole in the casing 20, and the gear 30 meshes with the rack 40, and the knob 10 rotation will drive the gear 30 to rotate, and the rotation of the gear 30 will drive the rack 40 to move. If the rack 40 is connected with the objective lens or the eyepiece, the object distance or the eye distance of the VR helmet can be adjusted.
  • a self-locking mechanism and an electronic device including the self-locking mechanism, wherein the self-locking mechanism includes: a housing having a through hole and a escape hole; the escape hole An elastic member connected to the hole wall of the escape hole is disposed, the free end of the elastic member is swingable in a thickness direction of the housing, and the elastic member is provided with a first engaging member; a knob, a a knob is disposed on an outer side of the housing, one end of the knob passes through the through hole, and a plurality of second clips are disposed on a side of the knob near the housing; The first latching member is engaged or disengaged from the second latching member under the deformation of the elastic member; the follower member is disposed on the inner side of the housing and fixed with the knob Connected for rotation with the knob.
  • the self-locking mechanism and the electronic device including the self-locking mechanism provided by the present disclosure are provided with an elastic member in the escape hole of the self-locking mechanism, the elastic member is provided with the first engaging member, and the knob is close to the side of the housing A plurality of second engaging members are disposed.
  • the knob is rotated, since the first engaging member and the second engaging member are engaged or disengaged, when the knob is rotated to a certain position, the first engaging member will be the first The two card connectors are stuck, so that the knob can be reversed to prevent the follower from moving backward.
  • the embodiment of the present disclosure provides a self-locking mechanism, as shown in FIG. 2, FIG. 5, FIG. 7, and FIG.
  • the housing 20 has a through hole 201 and a escaping hole 202.
  • the escaping hole 202 is provided with an elastic member 50 connected to the hole wall of the escaping hole 202.
  • the free end of the elastic member 50 can be along the shell.
  • the body 20 is oscillated in the thickness direction, and the elastic member 50 is provided with a first engaging member 60.
  • the escape hole 202 may be a through hole penetrating through the housing 20 (illustrated in FIG. 3 to avoid the hole 202 as a through hole), or may be a blind hole that does not penetrate the housing 20, as long as the elastic member 50 is free. The end may be swung in the thickness direction of the casing 20. When the escape hole 202 is a blind hole, the thickness of the elastic member 50 is smaller than the depth of the escape hole 202.
  • the through hole 201 and the escape hole 202 may or may not be connected, and are not limited thereto.
  • the free end of the elastic member 50 can swing in the thickness direction of the housing 20, and the material of the elastic member 50 can be, for example, an elastic material such that the free end of the elastic member 50 can swing in the thickness direction of the housing 20;
  • the shape of the elastic member 50, for example, the elastic member 50 is a strip-shaped elastic piece such that the free end of the elastic member 50 can swing in the thickness direction of the casing 20.
  • the type of the first clip 60 is not limited.
  • the first clip 60 may be a groove or a protrusion.
  • FIG. 3 and FIG. 9 of the present specification illustrate the outer side of the casing 20.
  • Knob 10 as shown in FIG. 4, the knob 10 is disposed on the outer side of the housing 20, one end of the knob 10 passes through the through hole 201, and a plurality of second engaging members 70 are disposed on a side of the knob 10 near the housing 20, The second snap members 70 are equidistant from the center of rotation of the knob 10; as the knob 10 rotates, the first clip member 60 can be engaged or disengaged from the second clip card 70 under the deformation of the elastic member 50.
  • the second clip 70 and the first clip 60 are not limited. Matching each other. For example, as shown in FIG. 2, when the first latching member 60 is a recess, the second latching member 70 is a protrusion; when the first latching member 60 is a protrusion, the second latching member 70 is Groove.
  • the plurality of second engaging members 70 are equal to the center of rotation of the knob 10, that is, the plurality of second engaging members 70 are arranged in a circular shape.
  • the distance between the second clip 70 and the center of rotation of the knob 10 and the number of the second clips 70 are not limited, and may be appropriately set according to the size of the knob 10.
  • the knob 10 can be rotated clockwise or counterclockwise, which is not limited thereto, and the corresponding rotation direction can be selected according to the needs of the follower 80.
  • the plurality of second engaging members 70 may be evenly distributed or may be non-uniformly distributed.
  • the first latching member 60 is disposed adjacent to the housing 20.
  • a second clip 70 is disposed on a side of the knob 10 adjacent to the housing 20.
  • the position of the first engaging member 60 is fixed.
  • the second engaging member 70 also rotates.
  • the first engaging member 60 is engaged or disengaged from the second engaging member 70.
  • the follower 80 is disposed on the inner side of the housing 20 and is fixedly coupled to the knob 10 for rotation by the knob 10.
  • the knob 10 is disposed on the outer side of the housing 20, and one end of the knob 10 is fixed to the follower 80 through the through hole 201 in the housing 20, so that the knob 10, the follower 80 and the housing 20 are assembled. together.
  • the type of the follower 80 is not limited, and may be set as needed.
  • the follower 80 can be a gear or a turntable or the like.
  • the fixing connection between the follower 80 and the knob 10 is not limited.
  • the follower 80 and the knob 10 may be fixedly connected by screws, or the follower 80 and the knob 10 may be directly welded together for fixed connection. .
  • the embodiment of the present disclosure provides a self-locking mechanism, in which the elastic member 50 is disposed in the escape hole 202 of the housing 20, the elastic member 50 is provided with a first engaging member 60, and the knob 10 is disposed adjacent to the side of the housing 20
  • the plurality of second engaging members 70 when the knob 10 is rotated, since the first engaging member 60 and the second engaging member 70 are engaged or disengaged, when the knob 10 is rotated to a certain position, the first engaging member 60 will clamp the second clip 70, thereby preventing the knob 10 from being reversed and preventing the follower 80 from retreating.
  • the follower 80 is a gear 30; the number of teeth on the gear 30 is an integral multiple of the number of the second clip 70.
  • the number of teeth on the gear 30 is not limited, and the gear 30 having an appropriate number of teeth can be selected according to the number of the second engaging members 70. Based on this, the number of teeth on the gear 30 may be 1 time, 2 times or 3 times of the second clip 70 on the housing 20, and the like. When the number of teeth on the gear 30 is 1 times of the second latching member 70, the second latching member 70 currently engaged with the first latching member 60 is separated from the current second card every time the gear 30 is rotated by 1 tooth.
  • the second latching member 70 adjacent to the connector 70 is in turn engaged with the first latching member 60; when the number of teeth on the gear 30 is twice that of the second latching member 70, each time the gear 30 rotates by 2 teeth, The second latching member 70 that is currently engaged with the first latching member 60 is separated from the first latching member 70, and the second latching member 70 that is adjacent to the second latching member 70 is latched with the first latching member 60; , will not repeat them here.
  • the follower 80 since the follower 80 is fixedly coupled to the knob 10, when the knob 10 is rotated, the follower 80 is also rotated by the knob 10. Based on this, when the follower 80 is a gear, in order to ensure that the gear 30 rotates, the second latch 70 on the knob 10 can be engaged with the first clip 60, and thus the number of teeth on the gear 30 is the second card.
  • the connector is an integer multiple of 70.
  • the embodiment of the present disclosure further optionally, the number of teeth on the gear 30 and the second latch 70 The numbers are equal, such that when the gear 30 rotates one tooth, the first clip 60 is engaged with the second clip 70, thereby preventing the gear 30 from being reversed.
  • the self-locking mechanism further includes a rack 40; the rack 40 meshes with the gear 30, and the rotation of the gear 30 drives the rack 40 to move.
  • FIG. 6 of the present specification illustrates the inner side of the casing 20.
  • the rack 40 can be disposed on other housings, and when the rack 40 moves, the components provided with the rack 40 will move accordingly.
  • the self-locking mechanism further includes the rack 40
  • the rack 40 meshes with the gear 30, so that the rotation of the knob 10 will drive the gear 30 to rotate, and the rotation of the gear 30 will drive the rack 40 to move, so that the circular motion can be transformed.
  • the rotation of the knob 10 will drive the gear 30 to rotate
  • the rotation of the gear 30 will drive the rack 40 to move, so that the circular motion can be transformed.
  • the rack 40 when the rack 40 is connected with the eyepiece or objective lens of the VR helmet, if it is necessary to adjust the eye distance or the object distance, only the knob 10 needs to be rotated, the knob 10 will drive the gear 30 to rotate, and the gear 30 will again
  • the rack 40 is moved to adjust the object distance or the eye distance, and when the knob 10 is rotated, the second clip 70 on the knob 10 is engaged with the first clip 60 on the housing 20, Therefore, the eyepiece or the objective lens does not move, and the position of the eyepiece or the objective lens can be fixed, so that the eye distance or the object distance can be fixed.
  • knob 10 and the gear 30 are fixedly coupled by screws 90.
  • the knob 10 is fixedly coupled to the gear 30 through the through hole 201 in the housing 20 by a screw 90, at which time the gear 30, the knob 10, the housing 20 and the screw 90 are assembled.
  • the knob 10 and the gear 30 may be fixedly connected by a screw 90 or may be fixedly connected by two or more screws 90.
  • the center of the knob 10 and the center of the gear 30 can be fixedly connected by a screw 90.
  • the gear 30 rotates correspondingly when the knob 10 is rotated.
  • the embodiment of the present disclosure since the first engaging member 60 is disposed on the elastic member 50, and the thickness of the elastic member 50 is small, when the first engaging member 60 is a groove, the depth of the groove may be relatively small. Therefore, the first latching member 60 and the second latching member 70 may not be stuck tightly, so that the self-locking effect of the knob 10 and the housing 20 is not obvious. Based on this, the embodiment of the present disclosure can be selected as shown in FIG. 2 to FIG. 5 and FIG. 7 to FIG.
  • the first engaging member 60 is a protrusion
  • the second engaging member 70 is a groove
  • the elastic member 50 is Regarding the thickness
  • a projection is provided on the elastic member 50, and the projection and the groove on the knob 10 can be tightly engaged, so that the knob 10 and the housing 20 have an excellent self-locking effect.
  • the shape of the protrusions and the grooves is not limited as long as the protrusions and the grooves can be matched.
  • the protrusions are hemispherical.
  • the protrusion when the protrusion is hemispherical, on the one hand, the protrusion is easy to manufacture, and on the other hand, in order to make the groove and the protrusion can be engaged, the groove is also hemispherical, so that the groove is easy to manufacture, and It is easy to separate when the groove and the projection are separated.
  • the elastic member 50 is integrally formed with the housing 20.
  • the elastic member 50 and the housing 20 are integrally formed, on the one hand, the elastic member 50 can be simultaneously manufactured with the housing 20, thereby simplifying the manufacturing process of the self-locking mechanism; on the other hand, the housing 20 is fabricated.
  • the elastic member is directly produced, which is not only simple in structure, but also cost-effective, and does not require other auxiliary parts.
  • the embodiment of the present disclosure further optionally, the material of the housing 20 is plastic. Since the elastic member 50 and the housing are integrally formed, the material of the elastic member 50 is also plastic. When the material of the elastic member 50 is plastic, the elastic member 50 is liable to be deformed.
  • the elastic member 50 is a strip-shaped elastic piece, and the longitudinal direction of the strip-shaped elastic piece faces the center of the through hole 201 and extends to the edge of the through hole 201.
  • the strip-shaped elastic piece extends to the edge of the through hole 201, and the strip-shaped elastic piece is disposed in the escape hole 202, that is, the through hole 201 and the escape hole 202 communicate with each other.
  • the strip-shaped elastic piece extends to the edge of the through hole 201, the length of the strip-shaped elastic piece can be set longer, and the strip-shaped elastic piece is easily deformed.
  • the first engaging member 60 is disposed at the edge of the free end of the strip-shaped elastic piece, the first engaging member 60 and the second engaging member 70 are matched, such that the second engaging member 70 on the knob 10 rotates to the knob 10. The distance of the center can be reduced, so that the knob 10 can be made smaller.
  • the self-locking mechanism further includes a limiting ring 100 disposed at an edge of the through hole 201 and close to a side of the knob 10; the limiting ring 100 includes a first portion that is disconnected from each other 101 and the second portion 102; the first portion 101 is disposed on the housing 20, and the second portion 102 is disposed on the strip-shaped elastic piece; wherein the first engaging member 60 is located at the second portion 102.
  • the material of the retaining ring 100 is not limited, and may be the same as or different from the material of the casing 20 .
  • the limiting ring 100 is disposed at the edge of the through hole 201, and the limiting ring 100 can limit the knob 10 to prevent the knob 10 from shaking up and down, and only the knob 10 is allowed to rotate.
  • Embodiments of the present disclosure also provide an electronic device including the above-described self-locking mechanism.
  • the type of the electronic device is not limited, and may be any electronic device including the self-locking mechanism.
  • the electronic device may be a VR helmet or VR glasses.
  • the embodiment of the present disclosure provides an electronic device.
  • the electronic device includes a self-locking mechanism.
  • the elastic member 50 is disposed in the escape hole 202 of the housing 20 of the self-locking mechanism.
  • the elastic member 50 is provided with a first engaging member 60, and the knob is provided.
  • 10 is disposed on a side of the housing 20 with a plurality of second latching members 70.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Control Devices (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

一种自锁机构及包括自锁机构的电子设备。该自锁机构包括：壳体（20），壳体（20）具有通孔（201）和避让孔（202）；避让孔（202）内设置有与避让孔（202）的孔壁连接的弹性件（50），弹性件（50）的自由端可沿壳体（20）的厚度方向摆动，弹性件（50）上设置有第一卡接件（60）；旋钮（10），旋钮（10）设置在壳体（20）的外侧，旋钮（10）的一端穿过通孔（201），旋钮（10）靠近壳体（20）的一侧设置有多个第二卡接件（70）；随着旋钮（10）转动，第一卡接件（60）在弹性件（50）的变形作用下与第二卡接件（70）卡接或分离；从动件（80），从动件（80）设置在壳体（20）的内侧，且与旋钮（10）固定连接，用于在旋钮（10）的带动下转动。

Description

自锁机构及包括自锁机构的电子设备
相关申请的交叉引用
本申请要求于2017年4月18日递交中国专利局的、申请号为201710253772.X的中国专利申请的权益，该申请的全部公开内容以引用方式并入本文。
技术领域
本公开涉及自锁技术领域，尤其涉及一种自锁机构及包括自锁机构的电子设备。
背景技术
相关技术中大多数产品都有调节机构，用来调节零部件之间的距离或位置。示例地，VR(Virtual Reality，虚拟现实)头盔产品中设置有目距或物距调节机构，用来调节物镜或目镜的距离。相关技术的VR头盔产品中的目距或物距调节机构使用的是齿轮调节机构。然而，相关技术的齿轮机构在位置调节完成后，若碰撞到调节机构常会出现旋钮反转，导致齿条行程后退的问题，从而影响用户的使用效果。
发明内容
本公开的实施例提供一种自锁机构及包括自锁机构的电子设备。
本公开的一个方面提供一种自锁机构，包括：壳体，所述壳体具有通孔和避让孔；所述避让孔内设置有与所述避让孔的孔壁连接的弹性件，所述弹性件的自由端可沿所述壳体的厚度方向摆动，所述弹性件上设置有第一卡接件；旋钮，所述旋钮设置在所述壳体的外侧，所述旋钮的一端穿过所述通孔，所述旋钮靠近所述壳体的一侧设置有多个第二卡接件；随着旋钮转动，所述第一卡接 件在弹性件的变形作用下与所述第二卡接件卡接或分离；从动件，所述从动件设置在所述壳体的内侧，且与所述旋钮固定连接，用于在所述旋钮的带动下转动。
在一个实施例中，所述多个第二卡接件到所述旋钮的旋转中心距离相等。
在一个实施例中，所述从动件为齿轮；所述齿轮上的齿数是所述第二卡接件个数的整数倍。
在一个实施例中，所述齿轮上齿数和所述第二卡接件个数相等。
在一个实施例中，所述自锁机构还包括齿条；所述齿条与所述齿轮啮合，所述齿轮转动可带动所述齿条移动。
在一个实施例中，所述旋钮和所述齿轮通过螺钉固定连接。
在一个实施例中，所述第一卡接件为凸起，所述第二卡接件为凹槽。
在一个实施例中，所述第一卡接件为半球形凸起，所述第二卡接件为半球形凹槽。
在一个实施例中，所述弹性件与所述壳体一体成型。
在一个实施例中，所述弹性件为条形弹性片，所述条形弹性片的长度方向朝向所述旋钮的旋转中心，且所述条形弹性片的自由端延伸至所述通孔边缘。
在一个实施例中，所述条形弹性片的除所述自由端的另一端与所述避让孔的孔壁连接。
在一个实施例中，所述自锁机构还包括设置在所述通孔的边缘，且靠近所述旋钮一侧的限位圈；所述限位圈包括相互断开的第一部分和第二部分；所述第一部分设置在所述壳体上，所述第二部分设置在所述条形弹性片的自由端上；其中，所述第一卡接件位于所述第二部分上。
在一个实施例中，所述限位圈与所述旋钮的穿过所述通孔的一端紧密配合。
在一个实施例中，所述避让孔和所述通孔连通。
本公开的另一个方面提供一种电子设备，上述自锁机构。
附图说明
为了更清楚地说明本公开实施例或相关技术中的技术方案，下面将对实施例或相关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公开的一些实施例，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，还可以根据这些附图获得其他的附图。
图1为相关技术调节结构的结构示意图；
图2为本公开实施例提供的一种自锁结构的结构示意图；
图3为本公开实施例提供的一种自锁结构中壳体的结构示意图；
图4为本公开实施例提供的一种自锁结构中旋钮的靠近壳体的一侧的侧视图；
图5为本公开实施例提供的一种自锁结构的另一个结构示意图；
图6为本公开实施例提供的齿轮和齿条的结构示意图；
图7为本公开实施例提供的一种自锁结构的又一个结构示意图；
图8为本公开实施例提供的一种自锁结构的又一个结构示意图；以及
图9为本公开实施例提供的壳体的具有限位圈的通孔的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，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，都属于本公开保护的范围。
如图1所示，旋钮10设置在壳体20外侧，齿轮30设置在壳体20内侧，旋钮10穿过壳体20上的通孔与齿轮30固定连接，齿轮30与齿条40啮合，旋钮10转动会带动齿轮30转动，而齿轮30转动会带动齿条40移动，若将齿条40与物镜或目镜连接，从而可以对VR头盔的物距或目距进行调节。
根据本公开的总体技术构思，提供了一种自锁机构及包括自锁机构的电子 设备，其中所述自锁机构包括：壳体，所述壳体具有通孔和避让孔；所述避让孔内设置有与所述避让孔的孔壁连接的弹性件，所述弹性件的自由端可沿所述壳体的厚度方向摆动，所述弹性件上设置有第一卡接件；旋钮，所述旋钮设置在所述壳体的外侧，所述旋钮的一端穿过所述通孔，所述旋钮靠近所述壳体的一侧设置有多个第二卡接件；随着旋钮转动，所述第一卡接件在弹性件的变形作用下与所述第二卡接件卡接或分离；从动件，所述从动件设置在所述壳体的内侧，且与所述旋钮固定连接，用于在所述旋钮的带动下转动。
本公开提供的自锁机构及包括自锁机构的电子设备，自锁机构中壳体的避让孔内设置有弹性件，弹性件上设置有第一卡接件，而旋钮靠近壳体的一侧设置有多个第二卡接件，当旋钮转动时，由于第一卡接件和第二卡接件会卡接或分离，因而当旋钮旋转到一定位置后，第一卡接件会将第二卡接件卡住，从而可以避免旋钮反转，防止从动件行程后退。
本公开实施例提供一种自锁机构，如图2、图5、图7以及图8所示，包括：
壳体20，如图3所示，壳体20具有通孔201和避让孔202；避让孔202内设置有与避让孔202的孔壁连接的弹性件50，弹性件50的自由端可沿壳体20的厚度方向摆动，弹性件50上设置有第一卡接件60。
其中，避让孔202可以是穿透壳体20的通孔(附图3中以避让孔202为通孔进行示意)，也可以是未穿透壳体20的盲孔，只要弹性件50的自由端可沿壳体20的厚度方向摆动即可。当避让孔202为盲孔时，弹性件50的厚度小于避让孔202的深度。此处，通孔201和避让孔202可以连通，也可以不连通，对此不进行限定。
此处，弹性件50的自由端能够沿壳体20的厚度方向摆动，可以是弹性件50的材料例如为弹性材料使得弹性件50的自由端可沿壳体20的厚度方向摆动；也可以是弹性件50的形状例如弹性件50为条状弹片使得弹性件50的自由端可沿壳体20的厚度方向摆动。
在此基础上，对于第一卡接件60的类型不进行限定，例如第一卡接件60可以是凹槽或凸起。
需要说明的是，本公开说明书附图3和附图9示意出的是壳体20的外侧。
旋钮10，如图4所示，旋钮10设置在壳体20的外侧，旋钮10的一端穿过通孔201，旋钮10靠近壳体20的一侧设置有多个第二卡接件70，多个第二卡接件70到旋钮10的旋转中心距离相等；随着旋钮10转动，第一卡接件60可在弹性件50的变形作用下与第二卡接件卡70卡接或分离。
其中，对于第二卡接件70的类型不进行限定，由于第二卡接件70和第一卡接件60可卡接或分离，因而第二卡接件70和第一卡接件60是相互匹配的。示例的，如图2所示，当第一卡接件60为凹槽时，第二卡接件70为凸起；当第一卡接件60为凸起时，第二卡接件70为凹槽。
此处，多个第二卡接件70到旋钮10的旋转中心距离相等，即多个第二卡接件70排列成圆形。对于第二卡接件70到旋钮10的旋转中心的距离以及第二卡接件70的数量不进行限定，可以根据旋钮10的大小进行合理设置。此外，旋钮10可以顺时针转动，也可以逆时针转动，对此不进行限定，可以根据从动件80的需要选择相应的转动方向。
在此基础上，多个第二卡接件70可以均匀分布，也可以非均匀分布。
本领域技术人员应该明白，为了使第一卡接件60和第二卡接件70可以在弹性件50的变形作用下卡接或分离，因而第一卡接件60设置在壳体20的靠近旋钮10的一侧，第二卡接件70设置在旋钮10的靠近壳体20的一侧。第一卡接件60的位置固定，旋钮10转动时，第二卡接件70也转动，在旋钮10的转动过程中，第一卡接件60与第二卡接件70卡接或分离。当转动旋钮10停止时，在没有外力作用于旋钮10时，由于第一卡接件60与第二卡接件70卡接住，因而旋钮10不会反转。
从动件80，从动件80设置在壳体20的内侧，且与旋钮10固定连接，用于在旋钮10的带动下转动。
本公开实施例，旋钮10设置在壳体20的外侧，旋钮10的一端穿过壳体20上的通孔201与从动件80固定，因而旋钮10、从动件80和壳体20组装在一起。
此处，对于从动件80的类型不进行限定，可以根据需要进行相应设置。例如从动件80可以是齿轮或转盘等。
此外，对于从动件80与旋钮10通过何种方式固定连接不进行限定，例如从动件80与旋钮10可以通过螺钉固定连接，或者从动件80与旋钮10可以直接焊接在一起以固定连接。
本公开实施例提供一种自锁机构，壳体20的避让孔202内设置有弹性件50，弹性件50上设置有第一卡接件60，而旋钮10靠近壳体20的一侧设置有多个第二卡接件70，当旋钮10转动时，由于第一卡接件60和第二卡接件70会卡接或分离，因而当旋钮10转动到一定位置后，第一卡接件60会将第二卡接件70卡住，从而可以避免旋钮10反转，防止从动件80行程后退。
可选地，如图2、图5-图8所示，从动件80为齿轮30；齿轮30上齿数是第二卡接件70个数的整数倍。
此处，对于齿轮30上的齿数不进行限定，可以根据第二卡接件70的个数选择具有适当齿数的齿轮30。基于此，齿轮30上齿数可以是壳体20上第二卡接件70的1倍、2倍或3倍等，对此不进行限定。当齿轮30上齿数是第二卡接件70的1倍时，齿轮30每转动1个齿，则当前与第一卡接件60卡接的第二卡接件70分离，与当前第二卡接件70相邻的第二卡接件70又会与第一卡接件60卡接；当齿轮30上齿数是第二卡接件70的2倍时，齿轮30每转动2个齿，则当前与第一卡接件60卡接的第二卡接件70分离，与当前第二卡接件70相邻的第二卡接件70又会与第一卡接件60卡接；依次类推，此处不再赘述。
本公开实施例，由于从动件80与旋钮10固定连接，因而当旋钮10转动时，从动件80在旋钮10的带动下也会发生转动。基于此，当从动件80为齿轮时，为了确保齿轮30转动时，旋钮10上的第二卡接件70都可以与第一卡 接件60卡接，因而齿轮30上齿数是第二卡接件70个数的整数倍。
为了对齿轮30进行精确控制，确保齿轮30每转动一个齿，自锁机构都可以自锁，防止齿轮30后退，因而本公开实施例进一步可选地，齿轮30上齿数和第二卡接件70个数相等，这样当齿轮30转动一个齿时，第一卡接件60就会和第二卡接件70卡接，从而防止齿轮30反转。
进一步可选地，如图5、图6以及图8所示，自锁机构还包括齿条40；齿条40与齿轮30啮合，齿轮30转动可带动齿条40移动。
需要说明的是，本公开说明书附图6示意出的是壳体20的内侧。
其中，齿条40可以设置在其它壳体上，当齿条40移动时，设置有齿条40的零部件会相应移动。
本公开实施例，由于自锁机构还包括齿条40，齿条40与齿轮30啮合，因而旋钮10转动会带动齿轮30转动，齿轮30转动又会带动齿条40移动，这样可以将圆周运动转化为直线运动。
在此基础上，当齿条40与VR头盔的目镜或物镜连接时，若需要对目距或物距进行调节，只需要转动旋钮10即可，旋钮10会带动齿轮30转动，齿轮30又会带动齿条40移动，从而可以对物距或目距进行调节，且旋钮10在转动时，旋钮10上的第二卡接件70会和壳体20上的第一卡接件60卡接，因而目镜或物镜便不会移动，可以对目镜或物镜的位置进行固定，从而可以固定目距或物距。
可选地，如图6-图8所示，旋钮10和齿轮30通过螺钉90固定连接。
此处，旋钮10穿过壳体20上的通孔201与齿轮30通过螺钉90固定连接，这时齿轮30、旋钮10、壳体20和螺钉90组装在一起。
其中，旋钮10和齿轮30可以通过一个螺钉90固定连接，也可以通过两个或多个螺钉90固定连接。当旋钮10和齿轮30通过一个螺钉90连接时，可以将旋钮10的中心与齿轮30的中心通过螺钉90固定连接。
本公开实施例，由于旋钮10和齿轮30通过螺钉90固定连接，因而旋钮 10转动时，齿轮30会相应发生转动。
本公开实施例，由于第一卡接件60设置在弹性件50上，而弹性件50的厚度若较小，这样当第一卡接件60为凹槽时，凹槽的深度可能也比较小，从而导致第一卡接件60和第二卡接件70可能会卡接不紧，这样旋钮10和壳体20的自锁效果不明显。基于此，本公开实施例可选如图2-图5以及图7-图9所示，第一卡接件60为凸起，第二卡接件70为凹槽，这样无论弹性件50的厚度如何，在弹性件50上设置凸起，凸起和旋钮10上的凹槽都可以紧密卡接，从而使得旋钮10和壳体20具有优良的自锁效果。
其中，对于凸起和凹槽的形状不进行限定，只要凸起和凹槽可以匹配即可。
进一步可选地，凸起为半球形。
本公开实施例，当凸起为半球形时，一方面凸起容易制作，另一方面，为了使凹槽和凸起可以卡接，因而凹槽也为半球性，这样凹槽便于制作，且在凹槽和凸起分离时易于分离。
可选地，如图3和图9所示，弹性件50与壳体20一体成型。
本公开实施例，由于弹性件50和壳体20一体成型，因而一方面，弹性件50可以和壳体20同时制作，从而简化了自锁机构的制作工艺；另一方面，在制作壳体20时直接制作弹性件，不仅结构简单，而且节约成本，且不需要其它辅助零件。
由于塑胶具有弹性且耐磨，因而本公开实施例进一步可选地，壳体20的材料为塑胶。由于弹性件50和壳体一体成型，因而弹性件50的材料也为塑胶。而弹性件50的材料为塑胶时，弹性件50易于发生形变。
可选地，如图2、图3以及图5-图9所示，弹性件50为条形弹性片，条形弹性片的长度方向朝向通孔201的中心，且延伸至通孔201边缘。
其中，条形弹性片延伸至通孔201边缘，而条形弹性片设置在避让孔202内，即通孔201和避让孔202连通。
本公开实施例，由于条形弹性片延伸至通孔201边缘，这样条形弹性片的 长度可以设置的较长，条形弹性片易于变形。此外，当第一卡接件60设置在条形弹性片的自由端的边缘，第一卡接件60和第二卡接件70匹配，这样旋钮10上的第二卡接件70到旋钮10旋转中心的距离便可以减小，从而使得旋钮10可以制作的较小。
进一步可选地，如图8和图9所示，自锁机构还包括设置在通孔201的边缘，且靠近旋钮10一侧的限位圈100；限位圈100包括相互断开的第一部分101和第二部分102；第一部分101设置在壳体20上，第二部分102设置在条形弹性片上；其中，第一卡接件60位于第二部分102。
其中，对于限位圈100的材料不进行限定，可以和壳体20的材料相同，也可以不相同。
本公开实施例，在通孔201的边缘设置限位圈100，限位圈100可以对旋钮10进行限位，防止旋钮10上下左右晃动，只允许旋钮10转动。
本公开实施例还提供一种电子设备，包括上述的自锁机构。
其中，对于电子设备的类型不进行限定，可以是任意的包括上述自锁机构的电子设备，具体的，电子设备可以是VR头盔或VR眼镜等。
本公开实施例提供一种电子设备，电子设备包括自锁机构，自锁机构的壳体20的避让孔202内设置有弹性件50，弹性件50上设置有第一卡接件60，而旋钮10靠近壳体20的一侧设置有多个第二卡接件70，当旋钮10转动时，由于第一卡接件60和第二卡接件70会卡接或分离，因而当旋钮10旋转到一定位置后，第一卡接件60会将第二卡接件70卡住，从而可以避免旋钮10反转，防止从动件80行程后退。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种自锁机构，包括：
    壳体，所述壳体具有通孔和避让孔；所述避让孔内设置有与所述避让孔的孔壁连接的弹性件，所述弹性件的自由端可沿所述壳体的厚度方向摆动，所述弹性件上设置有第一卡接件；
    旋钮，所述旋钮设置在所述壳体的外侧，所述旋钮的一端穿过所述通孔，所述旋钮靠近所述壳体的一侧设置有多个第二卡接件；随着旋钮转动，所述第一卡接件在弹性件的变形作用下与所述第二卡接件卡接或分离；
    从动件，所述从动件设置在所述壳体的内侧，且与所述旋钮固定连接，用于在所述旋钮的带动下转动。
  2. 根据权利要求1所述的自锁机构，其中，所述多个第二卡接件到所述旋钮的旋转中心距离相等。
  3. 根据权利要求1所述的自锁机构，其中，所述从动件为齿轮；所述齿轮上的齿数是所述第二卡接件个数的整数倍。
  4. 根据权利要求3所述的自锁机构，其中，所述齿轮上齿数和所述第二卡接件个数相等。
  5. 根据权利要求3或4所述的自锁机构，其中，所述自锁机构还包括齿条；所述齿条与所述齿轮啮合，所述齿轮转动可带动所述齿条移动。
  6. 根据权利要求3所述的自锁机构，其中，所述旋钮和所述齿轮通过螺钉固定连接。
  7. 根据权利要求1所述的自锁机构，其中，所述第一卡接件为凸起，所述第二卡接件为凹槽。
  8. 根据权利要求7所述的自锁机构，其中，所述第一卡接件为半球形凸起，所述第二卡接件为半球形凹槽。
  9. 根据权利要求1所述的自锁机构，其中，所述弹性件与所述壳体一体成型。
  10. 根据权利要求1所述的自锁机构，其中，所述弹性件为条形弹性片，所述条形弹性片的长度方向朝向所述旋钮的旋转中心，且所述条形弹性片的自由端延伸至所述通孔边缘。
  11. 根据权利要求10所述的自锁机构，其中，所述条形弹性片的除所述自由端的另一端与所述避让孔的孔壁连接。
  12. 根据权利要求10所述的自锁机构，其中，所述自锁机构还包括设置在所述通孔的边缘，且靠近所述旋钮一侧的限位圈；所述限位圈包括相互断开的第一部分和第二部分；所述第一部分设置在所述壳体上，所述第二部分设置在所述条形弹性片的自由端上；
    其中，所述第一卡接件位于所述第二部分上。
  13. 根据权利要求12所述的自锁机构，其中，所述限位圈与所述旋钮的穿过所述通孔的一端紧密配合。
  14. 根据权利要求1所述的自锁机构，其中，所述避让孔和所述通孔连通。
  15. 一种电子设备，包括权利要求1-14任一项所述的自锁机构。
PCT/CN2018/082994 2017-04-18 2018-04-13 自锁机构及包括自锁机构的电子设备 WO2018192422A1 (zh)

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