WO2022116817A1 - 一种旋转按键卸力机构及电子设备 - Google Patents

一种旋转按键卸力机构及电子设备 Download PDF

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Publication number
WO2022116817A1
WO2022116817A1 PCT/CN2021/131043 CN2021131043W WO2022116817A1 WO 2022116817 A1 WO2022116817 A1 WO 2022116817A1 CN 2021131043 W CN2021131043 W CN 2021131043W WO 2022116817 A1 WO2022116817 A1 WO 2022116817A1
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WO
WIPO (PCT)
Prior art keywords
cap
key
force
button
rotary
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PCT/CN2021/131043
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English (en)
French (fr)
Inventor
姜浩德
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Priority to US18/255,594 priority Critical patent/US20240027962A1/en
Publication of WO2022116817A1 publication Critical patent/WO2022116817A1/zh

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/041—Construction of crowns for rotating movement; connection with the winding stem; winding stems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • G04B37/106—Hermetic sealing of openings, joints, passages or slits of winding stems of push buttons

Definitions

  • the present application relates to the technical field of electronic equipment, and more particularly, to a force relief mechanism for a rotary button.
  • the present application also relates to an electronic device including the above-mentioned rotary button force relief mechanism.
  • buttons on common wearable devices need to be able to be pressed and rotated.
  • the button and the base are usually connected by a button return spring.
  • the button return spring When the button is pressed, the button return spring will directly or indirectly.
  • a reaction force is applied to hold the circlip fitted to the key lever firmly against the bar.
  • the circlip rubs against the barrel, which produces abnormal noise and affects the rotation life of the button.
  • the purpose of the present application is to provide a rotary button force relief mechanism, which can avoid friction between the circlip and the barrel when the mechanism is rotated, so as to ensure the rotation life of the button.
  • Another object of the present application is to provide an electronic device including the above-mentioned rotary key force relief mechanism.
  • a rotary button force relief mechanism includes a button, a bar tube and a cap, the lid cap can move axially relative to the bar tube, and the two are connected by an axially telescopic elastic member; the rod portion of the button passes through the the barrel and the cap, so that when the key cap of the key presses the cap, the elastic member is compressed;
  • the rod portion of the key is provided with a stopper for preventing slipping, and when no axial force acts on the key, there is no interaction force between the stopper and the bar.
  • one of the pipe and the cap is provided with a snap, and the other is provided with a snap groove for engaging with the snap, the pipe is snapped with the cover, and can be Move relative to the limit in the axial direction.
  • the clasp is an L-shaped clasp
  • the clasp groove is an L-shaped groove that forms a clasp connection with the clasp through circumferential rotation after axial insertion.
  • the bar is provided with at least three snaps extending in the circumferential direction, and the end surface of the cap is provided with the snap grooves that are engaged with the snaps.
  • the elastic member is a spring
  • the spring is in a compressed state in a state where the tube is clamped with the cover cap, and an elastic restoring force acts on the cover cap, so that the cover cap is located in the axial direction away from the cover cap. The location of the suba.
  • the elastic member is a spring, one end of the spring is fixed to the bar tube, and the other end of the spring is fixed to the cover cap.
  • the spring is in a natural state.
  • the key cap of the key comprises a top portion in contact with the end surface of the cover cap and an outer peripheral portion surrounding the circumferential surface of the cover cap, the outer peripheral portion and the top portion being an integral structure.
  • the top part is in clearance fit with the end of the cap, and the outer peripheral part is in clearance fit with the circumferential surface of the cap;
  • the top portion and the end of the cap are in point-surface contact fit, and the outer peripheral portion and the peripheral surface of the cap are in point-surface contact fit.
  • the pipe is provided with a pipe thread for connecting the main body of the device, and a pipe sealing ring for sealing is provided on one side of the pipe thread;
  • a sealing groove is provided inside the rod portion of the key or the rod, and a key rod sealing ring for sealing the rod and the rod is provided in the sealing groove.
  • An electronic device includes a device main body and a rotary key mechanism mounted on the device main body, wherein the rotary key mechanism is the rotary key force relief mechanism described in any one of the above.
  • the rod portion of the button is sleeved, and the rod portion is provided with a circlip to prevent the button from being detached.
  • the movement of the button forms a limit effect.
  • the key cap of the key presses the cap, the cap compresses the elastic member, and the reaction force of the elastic member is used to drive the key to rebound;
  • the key is not affected by external force, due to the force of the elastic member Acting on the cap, and no pressing force is formed between the circlip and the tube, so the cap does not transmit the force to the keycap of the button, and the circlip on the button and the tube have no pressing effect.
  • the rotation There is no friction between the button, the circlip fixed on the button and the bar tube, so there will be no abnormal rotation noise, and it will not affect the service life of the structure.
  • the present application also provides an electronic device including the above-mentioned elastic member inclined force mechanism of the rotary button.
  • Fig. 1 is an exploded view of the rotary key relief mechanism provided by the application
  • FIG. 2 is a cross-sectional view of a rotary key relief mechanism provided by the application
  • Fig. 3 is the first step assembly drawing of the rotary key relief mechanism provided by the application
  • Fig. 4 is the second-step assembly diagram of the rotary key relief mechanism provided by the application.
  • Fig. 5 is the assembly diagram of the third step of the rotary key relief mechanism provided by the application.
  • Fig. 6 is the assembly diagram of the fourth step of the rotary key relief mechanism provided by the application.
  • Figure 7 is a bottom view of the cap
  • FIG. 8 is a cross-sectional view taken along the line A-A in FIG. 7 .
  • reference numerals include:
  • 1 is the button
  • 2 is the cap
  • 3 is the key rod sealing ring
  • 4 is the elastic piece
  • 5 is the bar tube
  • 6 is the bar tube sealing ring
  • 7 is the limiter
  • 21 is the snap groove
  • 51 is the step structure.
  • the core of the present application is to provide a rotary button force relief mechanism, which can avoid friction between the circlip and the bar tube when the mechanism is rotated.
  • Another core of the present application is to provide an electronic device including the above-mentioned rotary key force relief mechanism.
  • FIG. 1 is an exploded view of the rotary button force relief mechanism provided by the application
  • FIG. 2 is a cross-sectional view of the rotary button force relief mechanism provided by the application.
  • the present application provides a rotary key relief mechanism, which is mainly used for the construction of keys of electronic equipment, and can improve the service life of the rotary keys.
  • the elastic element force-relieving structure of the rotary button includes a button 1 , a bar tube 5 , an elastic element 4 and a cap 2 in structure.
  • the bar tube 5 is a component installed on the main body of the device, and the bar tube 5 has a groove, and the upper and lower spaces of the groove are communicated through a middle hole.
  • the cap 2 can move axially relative to the central hole of the bar tube 5 , and the cap 2 and the bar tube 5 are connected by an axially retractable elastic member 4 .
  • the key 1 includes a stem portion and a keycap connected to one end of the stem portion.
  • the rod part of the key 1 passes through the tube 5 and the cap 2 , and the key cap of the key 1 is opposite to the cap.
  • the cap 2 can compress the elastic member 4 .
  • the rod portion of the button 1 is provided with a stopper 7 for preventing disengagement.
  • a stopper 7 for preventing disengagement.
  • the rod of the button 1 passes through the cap 2, the tube 5 and the main body of the device in sequence, so that the inner side of the key cap of the button 1 faces the cap 2.
  • the other end of the rod can be provided with a limiter 7.
  • the specific limiting member 7 can be a clip or the like, such as a circlip.
  • the key cap of the button 1 When the key cap of the button 1 is subjected to axial pressure, it moves along the axial direction and squeezes the cap 2, the cap compresses the elastic member 4, and the elastic member 4 contracts and deforms. When the pressure is removed, the elastic restoring force of the elastic member 4 acts on the cap 2. The cap 2 pushes the key cap back to push the key 1 to reset.
  • the elastic force of the elastic member 4 acts on the cap 2, and the limiting member 7 is just in the position where the button 1 and the cap 2 and the tube 5 have no relative force, that is, There is no interaction force between the stopper 7 and the tube 5, so when the button 1 is rotated at this time, the stopper 7 and the tube 5 have no pressure, so there is no friction, which avoids friction damage between the two.
  • the rod portion of the key is sleeved, and the rod portion is provided with a circlip to prevent the key from being detached.
  • the movement of the button forms a limit effect.
  • the key cap of the key presses the cap, the cap compresses the elastic member, and the reaction force of the elastic member is used to drive the key to rebound;
  • the key is not affected by external force, due to the force of the elastic member Acting on the cap, and no pressing force is formed between the circlip and the tube, so the cap does not transmit the force to the keycap of the button, and the circlip on the button and the tube have no pressing effect.
  • the rotation There is no friction between the button, the circlip fixed on the button and the bar tube, so there will be no abnormal rotation noise, and it will not affect the service life of the structure.
  • the cap 2 and the bar tube 5 have various connection methods, one of which uses an elastic member to connect the two, so that the two can move telescopically in the natural state of the elastic member.
  • the elastic member 4 is a spring, one end of the spring is fixed to the bar tube 5, and the other end of the spring is fixed to the cap 2. When no external force acts on the button 1, the spring is in a natural state.
  • the two ends of the spring are respectively fixed to the bar tube 5 and the cap 2, and the spring can provide a pulling force or a pushing force to the two.
  • the button 1 passes through the cap 2 and the tube 5, and is connected to the limiter. When no external force acts on the button 1, the button 1 is just in a position where there is no pressure on the cap 2. Therefore, the cap 2 has no pressure and the spring is in a natural state. . When the button 1 is pressed and pushes the cap 2, the spring deforms and contracts. When the external force is withdrawn, the spring pushes the cap 2 and further pushes the button 1 to reset. The spring returns to its natural state, and the button 1 completes the reset.
  • connection relationship between the bar tube 5 and the cap 2 can also be adjusted, so as to more accurately control the position corresponding to the absence of relative friction between the stopper 7 and the bar tube 5 .
  • one of the pipe 5 and the cap 2 is provided with a buckle, and the other is provided with a buckle groove 21 for engaging with the buckle. It can move relative to the limit in the axial direction.
  • the bar tube 5 and the cap 2 form a snap connection by circumferentially screwing, and can also move axially in the snap state. Since the two are clamped in the circumferential direction and can achieve axial limit movement, the maximum distance between the bar tube 5 and the cap 2 in the axial direction can be determined, and the limit is set when the button 1 is adjusted to the maximum distance. If the member 7 is used, it can ensure that the bar tube 5 and the limiting member 7 do not rub against each other.
  • the buckle is an L-shaped buckle
  • the buckle groove 21 is an L-shaped groove that forms a clamping connection with the buckle through circumferential rotation after axial insertion.
  • FIG. 1 wherein an L-shaped buckle is arranged on the end face of the bar tube 5
  • FIG. 4 an L-shaped groove is arranged on the cover cap 2 , and the two axially move and rotate in the circumferential direction. It can form a stable connection between the two in the circumferential direction.
  • the bar tube 5 is provided with at least three buckles protruding in the circumferential direction, and the end surface of the cap 2 is provided with a buckle groove 21 which is engaged with the buckles.
  • each L-shaped buckles are arranged on the barrel 5 , and the buckle grooves 21 on the end face of the cap 2 include 4 L-shaped buckle grooves 21 , each of which is L-shaped.
  • the buckles are all connected to the corresponding L-shaped buckle grooves 21 , and the connection directions are either clockwise or counterclockwise.
  • a step structure 51 is provided on the side of the L-shaped buckle groove 21 to form a Z-shaped groove between two adjacent L-shaped buckles.
  • the snap-fit structure may also be of other types.
  • the state of the elastic member 4 may be a natural state or a compressed state.
  • the spring when the bar tube 5 and the cap 2 are clamped, the spring is in a compressed state, and the elastic restoring force acts on the cap 2, so that the cap 2 is located at a position away from the bar tube 5 in the axial direction.
  • the restoring force of the compressed spring acts on the bar tube 5 and the cap 2. Since the bar tube 5 is fixed to the main body of the device, the cap 2 will be pushed away from the bar tube 5 by the spring. However, since the bar tube 5 and the cap 2 are in a limit-locking state, the distance between the two has been determined, so the cap 2 will be located at the farthest position away from the bar tube 5 in its axial movement stroke. If the button 1 is set at this position, and the limiter 7 is set, it can be accurately determined that this position is the force-free position of the limiter 7 and the bar tube 5 .
  • the elastic member 4 is a spring, and the restoring force direction of the spring is a linear direction, which can form a stable acting force direction.
  • the cap 2 is a disc-like structure, and the groove on its end face is snap-fitted with the bar tube 5 .
  • the keycap of the key 1 includes a top part contacting the end surface of the cover cap 2 and an outer peripheral part surrounding the circumferential surface of the cover cap 2 .
  • the keycap of the key 1 is a cap-shaped structure with a top and an outer peripheral portion, the top is used for contacting with the cover cap 2 , and the outer peripheral portion is located at the outer peripheral position of the cover cap 2 .
  • the cap-shaped structure formed by the keycap can cover the outside of the cover cap 2, and form a socket to be arranged outside the cover cap 2.
  • the keycap of the present application can avoid increasing the axial direction. , which saves the space occupied by button 1.
  • the top and the end of the cap 2 are in clearance fit, and the outer peripheral portion and the circumferential surface of the cap 2 are in clearance fit.
  • the clearance fit is mainly used in the case where the tube 5 and the cap 2 are connected by the elastic member 4 and are also clamped together.
  • the clearance fit can better prevent the rotation of the button 1 from affecting the circumferential position of the cap 2. Avoid driving the cap 2 to rotate to make the snap connection fail.
  • the top part and the end of the cap 2 are in point-surface contact fit, and the outer peripheral part and the circumferential surface of the cap 2 are in point-surface contact fit.
  • This structure can be applied to the case where the cap 2 is connected to the bar tube 5 only through the elastic member 4 .
  • the bar pipe 5 is provided with a bar pipe thread for connecting the main body of the device, and one side of the bar pipe thread is provided with a bar pipe sealing ring 6 for sealing; and/or, the rod or bar of the button 1
  • the inside of the tube 5 is provided with a sealing groove, and the sealing groove is provided with a key rod sealing ring 3 for sealing the tube 5 and the rod.
  • the position of the above-mentioned key rod sealing ring 3 can be at any position on the rod part, and the number can be adjusted according to the situation.
  • the bar tube sealing ring 6 is arranged on the outside of the bar tube 5 and can form a seal between the bar tube 5 and the main body of the device.
  • FIG. 3 is the first step assembly diagram of the rotary button force relief mechanism provided by the application
  • FIG. 4 is the second step assembly diagram of the rotary button force relief mechanism provided by the application
  • FIG. 5 Fig. 6 is the assembly diagram of the fourth step of the rotary button force relief mechanism provided by the application.
  • the installation process mainly includes: first, put the elastic piece 4 into the groove of the bar tube 5, then fasten the cap 2 on the end of the bar tube 5, align the L-shaped buckle with the L-shaped groove, and screw Cap 2, to fasten the cap 2 and the tube 5.
  • the third step pass the rod of the button 1 through the cap 2 and the tube 5 in turn, and pass out from the side of the main body of the device.
  • a snap spring is set on the rod part of the rod to limit the movement of the rod part.
  • the rod part of the button 1 is sleeved on the bar tube 5, and the bar tube 5 is connected to the cap 2 through the elastic member 4, and the cap 2 can move relative to the bar tube 5 in the axial direction.
  • the rod part passes through the bar tube 5 and the cap 2, and the rod part is provided with a circlip to prevent the rod part of the button 1 from coming out.
  • the elastic member is compressibly arranged between the bar tube 5 and the cap 2, that is, the bar tube 5 and the cap 2 clamp the elastic member 4, so as to prevent the elastic member 4 from directly forming an axial pressure on the key 1, and to avoid any pressure on the key shaft.
  • a squeezing force is formed between the circlip and the pipe 5. The rotation of the button 1 will not cause friction between the circlip and the pipe 5 in the circumferential direction. service life of both.
  • the present application also provides an electronic device including the above rotary button force relief mechanism.
  • the electronic device includes a device body and a rotary button mechanism installed on the device body.
  • the rotary button The mechanism is the above-mentioned rotary key relief mechanism.
  • the above-mentioned electronic device may be a watch, a wristband, etc.
  • the above-mentioned rotary button force relief mechanism may be a button mechanism disposed thereon.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
  • Measuring Fluid Pressure (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Telephone Set Structure (AREA)

Abstract

本申请一些实施例公开了一种旋转按键卸力机构和电子设备，旋转按键卸力机构包括按键、巴管和盖帽，盖帽可相对于巴管轴向移动，且二者通过轴向伸缩的弹性件连接；按键的杆部穿过于巴管与盖帽，以使按键的键帽挤压盖帽时，压缩弹性件；按键的杆部设有防脱的限位件，当无轴向力作用于按键时，限位件与巴管之间无相互作用力。按键受按压力轴向移动时，按键的键帽会挤压盖帽，盖帽压缩弹性件，弹性件的反作用力用于带动按键回弹；而在按键不受外力作用时，由于弹性件的力作用于盖帽上，且卡簧与巴管之间未形成挤压作用力，此时转动按键，固定于按键的卡簧与巴管之间不会形成摩擦力，因此不会形成旋转异响，也不会影响结构的使用寿命。

Description

一种旋转按键卸力机构及电子设备
本申请要求于2020年12月02日提交中国专利局、申请号为202011389682.1、发明名称为“一种旋转按键卸力机构及电子设备”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。
技术领域
本申请涉及电子设备技术领域，更具体地说，涉及一种旋转按键卸力机构。此外，本申请还涉及一种包括上述旋转按键卸力机构的电子设备。
背景技术
常见的可穿戴设备上的操作按键需要能够实现按压和转动的操作，在结构上，通常是利用按键回位弹簧连接按键和基座，在按压操作时，按键回位弹簧会直接或间接对按键施加反作用力，从而将装配至按键杆上的卡簧紧紧贴住巴管。而在对该按键进行旋转操作时，卡簧与巴管摩擦，产生异响且影响按键旋转寿命。
综上所述，如何避免降低按键旋转寿命，是目前本领域技术人员亟待解决的问题。
发明内容
有鉴于此，本申请的目的是提供一种旋转按键卸力机构，该机构旋转操作时能够避免卡簧与巴管产生摩擦，保证按键旋转寿命。
本申请的另一目的是提供一种包括上述旋转按键卸力机构的电子设备。
为了实现上述目的，本申请提供如下技术方案：
一种旋转按键卸力机构，包括按键、巴管和盖帽，所述盖帽可相对于所述巴管轴向移动，且二者通过轴向伸缩的弹性件连接；所述按键的杆部穿过于所述巴管与所述盖帽，以使所述按键的键帽挤压所述盖帽时，压缩所述弹性件；
所述按键的杆部设有防脱的限位件，当无轴向力作用于所述按键时，所述限位件与所述巴管之间无相互作用力。
优选的，所述巴管与所述盖帽中一者设有卡扣，另一者设有与所述卡扣卡接的卡扣凹槽，所述巴管与所述盖帽卡接，并可沿轴向相对限位移动。
优选的，所述卡扣为L形卡扣，所述卡扣凹槽为与所述卡扣通过轴向插入后的周向旋转形成卡接的L形凹槽。
优选的，所述巴管设有至少3个沿周向伸出的所述卡扣，所述盖帽的端面设有与所述卡扣配合卡接的所述卡扣凹槽。
优选的，所述弹性件为弹簧，所述巴管与所述盖帽卡接状态下，所述弹簧呈压缩状态，弹性回复力作用于所述盖帽，以使所述盖帽位于轴向上远离所述巴管的位置。
优选的，所述弹性件为弹簧，所述弹簧的一端固定于所述巴管，另一端固定于所述盖帽，无外力作用于所述按键时，所述弹簧为自然状态。
优选的，所述按键的键帽包括与所述盖帽的端面接触的顶部和围设于所述盖帽的周向面的外周部，所述外周部与所述顶部为一体结构。
优选的，所述顶部与所述盖帽的端部为间隙配合，所述外周部与所述盖帽的周向面为间隙配合；
或，所述顶部与所述盖帽的端部为点面接触配合，所述外周部与所述盖帽的周向面为点面接触配合。
优选的，所述巴管设有连接设备主体的巴管螺纹，所述巴管螺纹的一侧设有用于密封的巴管密封圈；
和/或，所述按键的杆部或所述巴管的内部设有密封凹槽，所述密封凹槽内设有用于密封所述巴管与所述杆部的按键杆密封圈。
一种电子设备，包括设备主体和安装于所述设备主体的旋转按键机构，所述旋转按键机构为上述任一项所述的旋转按键卸力机构。
本申请提供的旋转按键的弹性件斜力机构中，在巴管、盖帽和弹性件形成的可伸缩的结构上，套设按键的杆部，并在杆部设置防止按键脱离的卡簧，对按键的移动形成限位作用。在按键受按压力轴向移动时，按键的键帽会挤压盖帽，盖帽压缩弹性件，弹性件的反作用力用于带动按键回弹；而在按键不受外力作用时，由于弹性件的力作用于盖帽上，且卡簧与巴管之间未形成 挤压作用力，因此在盖帽并未将力传递给按键的键帽，按键上的卡簧与巴管没有挤压作用，此时转动按键，固定于按键的卡簧与巴管之间不会形成摩擦力，因此不会形成旋转异响，也不会影响结构的使用寿命。
本申请还提供了一种包括上述旋转按键的弹性件斜力机构的电子设备。
附图说明
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为本申请所提供的旋转按键卸力机构的爆炸图；
图2为本申请所提供的旋转按键卸力机构的剖视图；
图3为本申请所提供的旋转按键卸力机构的第一步组装图；
图4为本申请所提供的旋转按键卸力机构的第二步组装图；
图5为本申请所提供的旋转按键卸力机构的第三步组装图；
图6为本申请所提供的旋转按键卸力机构的第四步组装图；
图7为盖帽的仰视图；
图8为图7的A-A向剖视图。
图1-图8中，附图标记包括：
1为按键、2为盖帽、3为按键杆密封圈、4为弹性件、5为巴管、6为巴管密封圈、7为限位件、21为卡扣凹槽、51为台阶结构。
具体实施方式
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清楚、完整地描述，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。
本申请的核心是提供一种旋转按键卸力机构，该机构旋转操作时能够避免卡簧与巴管产生摩擦。
本申请的另一核心是提供一种包括上述旋转按键卸力机构的电子设备。
请参考图1和图2，图1为本申请所提供的旋转按键卸力机构的爆炸图；图2为本申请所提供的旋转按键卸力机构的剖视图。
本申请提供了一种旋转按键卸力机构，主要用于电子设备的按键的构成，能够提升旋转按键的使用寿命。
旋转按键的弹性件卸力结构在结构上包括按键1、巴管5、弹性件4和盖帽2。
巴管5为安装于设备主体的部件，巴管5具有凹槽，凹槽的上下空间通过中孔连通。盖帽2可相对于巴管5的中孔的轴向移动，且盖帽2和巴管5之间通过轴向可伸缩的弹性件4连接。
按键1包括杆部和连接于杆部一端的键帽。按键1的杆部穿过于巴管5与盖帽2，按键1的键帽与盖帽相对，按键1的键帽挤压盖帽2时，盖帽2能够压缩弹性件4。
按键1的杆部设有防脱的限位件7，当无轴向力作用于按键1时，限位件7与巴管5之间无相互作用力。
需要说明的是，按键1的杆部依次穿过盖帽2、巴管5和设备主体，以使得按键1的键帽内侧朝向盖帽2，此时杆部的另一端可以通过设置限位件7，防止按键1的杆部脱离盖帽2、巴管5和设备主体，具体的限位件7可以为卡接件等，例如卡簧。
按键1的键帽受到轴向压力时，沿轴向移动挤压盖帽2，盖帽压缩弹性件4，弹性件4收缩变形，当压力撤销时，弹性件4的弹性回复力作用于盖帽2上，盖帽2推动键帽回弹，以便推动按键1复位。
而当无轴向力作用于按键1时，弹性件4的弹性力作用于盖帽2上，且限位件7恰好处于使得按键1与盖帽2、巴管5无相对作用力的位置，即，限位件7与巴管5之间无相互作用力的位置，所以此时旋转按键1，限位件7因与巴管5无压力，也就无摩擦力，避免了造成二者摩擦损伤。
本申请所提供的旋转按键的弹性件卸力机构中，在巴管、盖帽和弹性件形成的可伸缩的结构上，套设按键的杆部，并在杆部设置防止按键脱离的卡簧，对按键的移动形成限位作用。在按键受按压力轴向移动时，按键的键帽会挤压盖帽，盖帽压缩弹性件，弹性件的反作用力用于带动按键回弹；而在按键不受外力作用时，由于弹性件的力作用于盖帽上，且卡簧与巴管之间未 形成挤压作用力，因此在盖帽并未将力传递给按键的键帽，按键上的卡簧与巴管没有挤压作用，此时转动按键，固定于按键的卡簧与巴管之间不会形成摩擦力，因此不会形成旋转异响，也不会影响结构的使用寿命。
盖帽2和巴管5具有多种连接方式，其中一种利用弹性件将二者连接，使二者能够在弹性件的自然状态下进行伸缩移动。
具体地，弹性件4为弹簧，弹簧的一端固定于巴管5，另一端固定于盖帽2，无外力作用于按键1时，弹簧为自然状态。
需要说明的是，弹簧的两端分别固定于巴管5和盖帽2，弹簧能够提供给二者拉力或推力。按键1穿过于盖帽2、巴管5，并连接限位件，当无外力作用于按键1时，按键1恰好处于对盖帽2无压力的位置，因此，盖帽2无压力作用，弹簧处于自然状态。当按键1受到压力并推动盖帽2时，弹簧形变收缩，当外力撤销时，弹簧推动盖帽2，并进一步推动按键1进行复位，弹簧恢复到自然状态，按键1完成复位。
除了上述这种情况以外，还可以通过调整巴管5与盖帽2的连接关系，以便更准确的把控限位件7与巴管5无相对摩擦所对应的位置。
在上述实施例的基础之上，巴管5与盖帽2中一者设有卡扣，另一者设有与卡扣卡接的卡扣凹槽21，巴管5与盖帽2卡接，并可沿轴向相对限位移动。
具体地，巴管5与盖帽2通过周向旋拧形成卡接连接，在卡接状态下，还能够进行轴向移动。由于二者在周向上进行了卡接，并能够实现轴向的限位移动，因此能够确定巴管5与盖帽2在轴向上的最大距离，按键1调整至该最大距离处时设置限位件7，则能够保证巴管5与限位件7不会产生摩擦。
在上述实施例的基础之上，卡扣为L形卡扣，卡扣凹槽21为与卡扣通过轴向插入后的周向旋转形成卡接的L形凹槽。
请参考图1，其中，在巴管5的端面设置有L形卡扣，请参考图4，在盖帽2上设有L形凹槽，二者轴向移动在周向转动的插接配合，能够形成二者在周向上的稳定连接。
可选的，巴管5设有至少3个沿周向伸出的卡扣，盖帽2的端面设有与卡扣配合卡接的卡扣凹槽21。
请参考图1、图4和图5，在巴管5设置有4个L形卡扣，在盖帽2的端 面卡扣凹槽21包括4个L形的卡扣凹槽21，每一个L形卡扣均连接对应的L形的卡扣凹槽21，且连接的方向均为顺时针或均为逆时针。
可选的，在L形的卡扣凹槽21的侧部设置有台阶结构51，用于在相邻的两个L形卡扣之间形成Z字形凹槽。卡接安装时，将盖帽2沿轴向下压，贴合台阶结构51，并使盖帽2的L形的卡扣凹槽21与L形卡扣对准；然后控制盖帽2周向转动，使L形的卡扣凹槽21与L形卡扣卡接；最后，控制盖帽2再次下压，进入到Z字形凹槽的最下部，以避免意外脱出，完成盖帽2和巴管5的卡接固定。
可选的，卡接配合结构还可以为其他类型结构。
在上述不同的连接方式和连接结构中，弹性件4的状态可以为自然状态或者为压缩状态。
在一个具体的实施例中，巴管5与盖帽2卡接状态下，弹簧呈压缩状态，弹性回复力作用于盖帽2，以使盖帽2位于轴向上远离巴管5的位置。
上述结构中，压缩状态的弹簧的回复力作用于巴管5和盖帽2，由于巴管5固定在设备主体，因此盖帽2会被弹簧推动远离巴管5。但由于巴管5与盖帽2为限位卡接状态，二者的间距已确定，因此盖帽2将位于其轴向移动行程中远离巴管5的最远位置。位于该位置下设置按键1，并设置限位件7，则能够准确确定该位置即为限位件7与巴管5的无作用力位置。
可选的，弹性件4为弹簧，弹簧的回复力方向为直线方向，能够形成稳定的作用力方向。
在上述任意一个实施例中，盖帽2为盘类结构，以其端面的凹槽与巴管5卡接设置。
在上述实施例的基础之上，按键1的键帽包括与盖帽2的端面接触的顶部和围设于盖帽2的周向面的外周部，外周部与顶部为一体结构。
按键1的键帽为帽形结构，具有顶部和外周部，顶部用于与盖帽2接触，外周部位于盖帽2的外周位置。
键帽形成的帽形结构能够笼罩在盖帽2的外部，形成套接设置在盖帽2的外部，相比起完全设置在盖帽2上部的按键帽而言，本申请的键帽能够避免增加轴向的空间占用，更加节省按键1所占用空间。
在上述内容的基础之上，顶部与盖帽2的端部为间隙配合，外周部与盖 帽2的周向面为间隙配合。需要说明的是，间隙配合主要运用在巴管5与盖帽2除通过弹性件4连接、二者还卡接的情况，间隙配合能够更好的避免按键1的转动影响盖帽2的周向位置，避免带动盖帽2转动以使卡接失效。
可选的，顶部与盖帽2的端部为点面接触配合，外周部与盖帽2的周向面为点面接触配合。这种结构可以应用在盖帽2仅通过弹性件4连接巴管5的情况。
在上述实施例的基础之上，巴管5设有连接设备主体的巴管螺纹，巴管螺纹的一侧设有用于密封的巴管密封圈6；和/或，按键1的杆部或巴管5的内部设有密封凹槽，密封凹槽内设有用于密封巴管5与杆部的按键杆密封圈3。
需要说明的是，上述按键杆密封圈3的位置可以在杆部的任意位置，数量可以根据情况进行调整，例如在巴管5的中下部与杆部配合的位置，设置两个或两个以上的按键杆密封圈3。巴管密封圈6设置在巴管5的外部，能够形成巴管5与设备主体的密封。
请参考图3至图6，图3为本申请所提供的旋转按键卸力机构的第一步组装图；图4为本申请所提供的旋转按键卸力机构的第二步组装图；图5为本申请所提供的旋转按键卸力机构的第三步组装图；图6为本申请所提供的旋转按键卸力机构的第四步组装图。
安装过程主要包括：首先，将弹性件4放入巴管5的凹槽中，然后，将盖帽2扣在巴管5的端部，使L形卡扣与L形凹槽对准，旋拧盖帽2，以将盖帽2和巴管5卡接固定，第三步，将按键1的杆部依次穿过盖帽2、巴管5，并由设备主体的一侧穿出，最后，在穿出的杆部上设置卡簧，以限制杆部的移出。
本申请提供的旋转按键卸力机构中按键1的杆部套接于巴管5，巴管5通过弹性件4连接盖帽2，盖帽2可以沿轴向相对于巴管5移动，按键1的杆部穿过于巴管5和盖帽2，且杆部设有防止按键1杆部脱出的卡簧。当按键1受到按压力移动时，巴管5与固定位置连接，并不产生移动，按键1的键帽挤压盖帽2，弹性件4被压缩。弹性件可压缩的设置在巴管5与盖帽2之间，即巴管5与盖帽2夹紧弹性件4，从而避免弹性件4对按键1直接形成轴向压力，避免对设置在按键杆部的卡簧与巴管5之间形成挤压力，按键 1的转动不会造成卡簧与巴管5在周向上的摩擦，因而，避免了卡簧与巴管5形成旋转异响，并提升二者的使用寿命。
除了上述各个实施例中所提供的旋转按键卸力机构，本申请还提供一种包括上述旋转按键卸力机构的电子设备，该电子设备包括设备主体和安装于设备主体的旋转按键机构，旋转按键机构为上述旋转按键卸力机构。
另外，上述电子设备可以为手表、手环等，而上述旋转按键卸力机构即可以为设置在其上的按键机构。
该电子设备的其他各部分的结构请参考现有技术，本文不再赘述。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
以上对本申请所提供的旋转按键卸力机构和电子设备进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。

Claims (10)

  1. 一种旋转按键卸力机构，其特征在于，包括按键(1)、巴管(5)和盖帽(2)，所述盖帽(2)可相对于所述巴管(5)轴向移动，且二者通过轴向伸缩的弹性件(4)连接；所述按键(1)的杆部穿过于所述巴管(5)与所述盖帽(2)，以使所述按键(1)的键帽挤压所述盖帽(2)时，压缩所述弹性件(4)；
    所述按键(1)的杆部设有防脱的限位件(7)，当无轴向力作用于所述按键(1)时，所述限位件(7)与所述巴管(5)之间无相互作用力。
  2. 根据权利要求1所述的旋转按键卸力机构，其特征在于，所述巴管(5)与所述盖帽(2)中一者设有卡扣，另一者设有与所述卡扣卡接的卡扣凹槽(21)，所述巴管(5)与所述盖帽(2)卡接，并可沿轴向相对限位移动。
  3. 根据权利要求2所述的旋转按键卸力机构，其特征在于，所述卡扣为L形卡扣，所述卡扣凹槽(21)为与所述卡扣通过轴向插入后的周向旋转形成卡接的L形凹槽。
  4. 根据权利要求2所述的旋转按键卸力机构，其特征在于，所述巴管(5)设有至少3个沿周向伸出的所述卡扣，所述盖帽(2)的端面设有与所述卡扣配合卡接的所述卡扣凹槽(21)。
  5. 根据权利要求2所述的旋转按键卸力机构，其特征在于，所述弹性件(4)为弹簧，所述巴管(5)与所述盖帽(2)卡接状态下，所述弹簧呈压缩状态，弹性回复力作用于所述盖帽(2)，以使所述盖帽(2)位于轴向上远离所述巴管(5)的位置。
  6. 根据权利要求1所述的旋转按键卸力机构，其特征在于，所述弹性件(4)为弹簧，所述弹簧的一端固定于所述巴管(5)，另一端固定于所述盖帽(2)，无外力作用于所述按键(1)时，所述弹簧为自然状态。
  7. 根据权利要求1至6任一项所述的旋转按键卸力机构，其特征在于，所述按键(1)的键帽包括与所述盖帽(2)的端面接触的顶部和围设于所述盖帽(2)的周向面的外周部，所述外周部与所述顶部为一体结构。
  8. 根据权利要求7所述的旋转按键卸力机构，其特征在于，所述顶部与所述盖帽(2)的端部为间隙配合，所述外周部与所述盖帽(2)的周向面为 间隙配合；
    或，所述顶部与所述盖帽(2)的端部为点面接触配合，所述外周部与所述盖帽(2)的周向面为点面接触配合。
  9. 根据权利要求1至6任一项所述的旋转按键卸力机构，其特征在于，所述巴管(5)设有连接设备主体的巴管螺纹，所述巴管螺纹的一侧设有用于密封的巴管密封圈(6)；
    和/或，所述按键(1)的杆部或所述巴管(5)的内部设有密封凹槽，所述密封凹槽内设有用于密封所述巴管(5)与所述杆部的按键杆密封圈(3)。
  10. 一种电子设备，包括设备主体和安装于所述设备主体的旋转按键机构，其特征在于，所述旋转按键机构为权利要求1至9任一项所述的旋转按键卸力机构。
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