WO2019174247A1 - 一种手表的按键防水结构 - Google Patents

一种手表的按键防水结构 Download PDF

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Publication number
WO2019174247A1
WO2019174247A1 PCT/CN2018/112525 CN2018112525W WO2019174247A1 WO 2019174247 A1 WO2019174247 A1 WO 2019174247A1 CN 2018112525 W CN2018112525 W CN 2018112525W WO 2019174247 A1 WO2019174247 A1 WO 2019174247A1
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hole
waterproof
disposed
case
annular
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PCT/CN2018/112525
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English (en)
French (fr)
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蒋权辉
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蒋权辉
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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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings

Definitions

  • the utility model relates to the technical field of watch structure, in particular to a key waterproof structure of a watch.
  • the existing electronic watch has at least one button for calibrating time, date, or switching display contents and functions on the side or the front side, but due to the presence of these buttons, a plurality of through holes are required on the case to enable the button In contact with the switch on the movement under external pressure, the display content and function of the watch are switched, but the through hole on the case increases the way of water entering the case, thereby increasing the waterproof function of the watch. The difficulty of the process.
  • the Chinese Patent Publication No. CN205334063U discloses a watch button waterproof structure, which comprises a watch case, a button and a PCB board.
  • the case has a groove at one end and a through hole at the center of the groove.
  • the movable ground is installed in the through hole, and the waterproof gasket is arranged at the contact between the button and the inner side of the through hole, and the elastic sealing member is arranged at the outer contact of the button and the through hole; although the structure is provided with two waterproof structures, it can be used for a long time.
  • the waterproof effect is maintained inside, but since the case is generally made of aluminum alloy, the aluminum alloy product is easily cast into a small needle-shaped sand hole when it is wound, and is processed on the case made of aluminum alloy.
  • the hole is formed, the sand hole inside the case is easily exposed, so that the hole wall of the through hole is uneven, which may result in insufficient sealing property between the waterproof structure and the inner wall of the through hole, thereby causing water to flow from the through hole into the case, causing malfunction of the movement.
  • the purpose of the utility model is to provide a waterproof structure of a key of a watch, and the waterproof structure of the key of the watch effectively solves the above problems.
  • a key waterproof structure of a watch comprising: a watch case, a waterproof sleeve and a button; the case is provided with a first step hole, a second step hole, a third step hole and a through hole from the outside to the inside,
  • the first stepped hole, the second stepped hole, the third stepped hole and the through hole are coaxially disposed and communicate with each other;
  • the waterproof sleeve is disposed through the through hole, and is disposed at an end of the outer side of the case a sealing ring, the sealing ring is disposed in the second stepped hole, the third stepped hole forms an annular sealing cavity under the barrier of the sealing ring, and an annular sealing member is disposed in the annular sealing cavity;
  • the button includes a pressing cap and a button post, the pressing cap is disposed in the first step hole, the button post is disposed in the waterproof sleeve, and the button post is provided with a first annular groove.
  • An annular seal is disposed in the first annul
  • the outer side wall of the pressing cap is provided with a second annular groove, and the second annular groove is provided with an annular sealing member.
  • a third annular groove is disposed at an end of the button pillar adjacent to the inner side of the case, and the third annular groove is provided with a waterproof gasket.
  • the waterproof gasket When the button is in an initial position, the waterproof gasket is closely attached. An inner wall of the case; when the button is pressed toward the inner side of the case, the waterproof pad is separated from the case, and the annular seal in the second annular groove enters the first step A seal is formed in the hole.
  • annular seal is a polyurethane seal ring.
  • the bottom of the first stepped hole is provided with a fixing pad for preventing the waterproof casing from coming off.
  • an elastic element connection is disposed between the pressing cap and the fixing pad.
  • the waterproof sleeve and the through hole are in an interference fit.
  • both ends of the inner wall of the waterproof sleeve are chamfered.
  • the key waterproof structure of the watch of the present invention has a first stepped hole, a second stepped hole, a third stepped hole and a through hole which are mutually connected from the outside to the inside of the watch case, and the button pillar and the through hole of the button
  • a waterproof sleeve is arranged between the outer sleeve of the waterproof sleeve, and a sealing ring is arranged in the second stepped hole.
  • the third stepped hole forms an annular sealing cavity under the barrier of the sealing ring, and the annular seal is formed.
  • An annular seal is arranged in the cavity; since the gap between the waterproof sleeve and the case is sealed by the annular seal in the annular sealing cavity, and the button is pressed, the waterproof sleeve and the case are relatively stationary between the two The sealing is more stable.
  • the waterproof casing is directly molded by casting, the surface of which is not processed, and the sealing performance between the button and the waterproof casing is better ensured.
  • the outer side wall of the pressing cap is provided with a second annular groove, and the second annular groove is provided with an annular sealing member; the end of the button pillar adjacent to the inner side of the case is provided with a third annular groove, and the third annular groove sleeve A waterproof gasket is provided.
  • the waterproof gasket is closely attached to the inner wall of the case, and the waterproof gasket forms a double seal with the annular seal in the first annular groove; when the button is pressed toward the inside of the case, Even if the waterproof gasket is separated from the watch case, the annular seal in the second annular groove enters the first stepped hole, and there is still a double seal in the key structure.
  • the bottom of the first stepped hole is provided with a fixing gasket for preventing the waterproof casing from coming out, and an elastic component is disposed between the pressing cap and the fixing gasket; the fixing gasket prevents the waterproof casing from falling off from the case easily. And the elastic element between the pressing cap and the fixing pad enables the button to be automatically reset after pressing.
  • FIG. 1 is a schematic structural view of a key waterproof structure of a wristwatch of the present invention
  • Figure 2 is an enlarged view of A in Figure 1;
  • FIG. 3 is a schematic structural view of a waterproof casing of the present invention.
  • FIG. 4 is a schematic structural view of a button of the present invention.
  • a waterproof structure of a button of a watch comprising: a case 1, a waterproof sleeve 2 and a button 3; the case 1 is provided with a first step hole 11 from the outside to the inside, a second stepped hole 12, a third stepped hole 13 and a through hole 14.
  • the first stepped hole 11, the second stepped hole 12, the third stepped hole 13 and the through hole 14 are coaxially disposed and communicate with each other; 2 is disposed in the through hole 14 , and a sealing ring 21 is disposed at an end of the outer side of the watch case 1 .
  • the sealing ring 21 is locked in the second stepped hole 12 , and the third stepped hole 13 is An annular sealing cavity 4 is formed under the barrier of the sealing ring 21, and the annular sealing cavity 4 is provided with an annular sealing member 5;
  • the button 3 includes a pressing cap 31 and a button post 32, and the pressing cap 31 is provided.
  • the button post 32 is disposed in the waterproof sleeve 2.
  • the button post 32 is provided with a first annular groove 321 , and the first annular groove 321 is provided therein.
  • the outer side wall of the pressing cap 31 is provided with a second annular groove 311, and the second annular groove 7 is provided with an annular seal 5 for sealing the second a gap between the annular groove 311 and the first stepped hole 11.
  • an end of the button post 32 adjacent to the inner side of the watch case 1 is provided with a third annular groove 322, and the third annular groove 322 is sleeved with a waterproof gasket 6 when the button 3 is in the initial position.
  • the waterproof gasket 6 is in close contact with the inner wall of the watch case 1; when the button 3 is pressed toward the inner side of the watch case 1, the waterproof gasket 6 is separated from the watch case 1, the second An annular seal 5 in the annular groove 311 enters the first stepped bore 11 to form a seal.
  • the annular seal 5 is a polyurethane seal ring.
  • the bottom of the first stepped hole 11 is provided with a fixing spacer 7 for preventing the waterproof casing 2 from coming off.
  • a connection of the elastic element 8 is provided between the pressing cap 31 and the fixing washer 7 .
  • the waterproof sleeve 2 and the through hole 14 are in an interference fit.
  • both ends of the inner wall of the waterproof sleeve 2 are chamfered.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

一种手表的按键防水结构，其表壳（1）上从外到内依次设有相互连通的第一台阶孔（11）、第二台阶孔（12）、第三台阶孔（13）和通孔（14），按键的按键支柱（32）与通孔之间设有防水套管（2），防水套管靠近表壳外侧的一端设有密封环（21），密封环卡设于第二台阶孔内，第三台阶孔在密封环的阻隔下形成一个环形密封腔（4），环形密封腔内设有环形密封件（5）；由于防水套管与表壳之间的空隙被环形密封腔内的环形密封件密封，且按键按压时，防水套管与表壳之间相对静止，两者之间的密封性更加稳定。另外，防水套管通过铸造直接成型，其表面无需经过加工，按键与防水套管之间的密封性能更好地保证。

Description

一种手表的按键防水结构 技术领域
本实用新型涉及一种手表结构技术领域，尤其涉及一种手表的按键防水结构。
背景技术
现有的电子手表，其侧面或正面至少设有一个用于校准时间、日期，或者切换显示内容和功能的按键，但是由于这些按键的存在，表壳上需要设置多个通孔，才能使按键在受到外部压力的情况下接触到机芯上的开关，从而实现切换手表的显示内容和功能，但是表壳上的通孔增加了水进入表壳内的途径，从而加大了手表防水功能制作工艺的难度。
为了解决上述问题，公告号为CN205334063U的中国专利公开了一种手表按键防水结构，其包括表壳、按键和PCB板，表壳的一端开设有凹槽，凹槽中心处设有通孔，按键活动地安装在通孔内，按键与通孔内侧接触处设置有防水垫片，按键与通孔外侧接触处设置有弹性密封件；这种结构虽然设置有两层防水结构，能够在较长时间内保持防水效果，但是由于表壳一般都是采用铝合金制成，铝合金制品铸造时容易因为卷入气体而产生细小的针状砂孔，当在铝合金制成的表壳上加工出通孔时，表壳内部的砂孔容易外露使通孔的孔壁凹凸不平，则会导致防水结构与通孔内壁密封性不足，从而导致水从通孔流入表壳内，造成机芯的失灵。
实用新型内容
本实用新型的目的是提供一种手表的按键防水结构，该手表的按键防水结构有效解决了上述问题。
为了实现上述目的，本实用新型的技术方案是：
一种手表的按键防水结构，其包括：表壳、防水套管和按键；所述表壳上从外到内依次设有第一台阶孔、第二台阶孔、第三台阶孔和通孔，所述第一台阶孔、第二台阶孔、第三台阶孔和通孔同轴设置且相互连通；所述防水套管穿设于所述通孔，其靠近所述表壳外侧的一端设有密封环，所述密封环卡设于所述第二台阶孔内，所述第三台阶孔在所述密封环的阻隔下形成一个环形密封腔，所述环形密封腔内设有环形密封件；所述按键包括按压帽和按键支柱，所述按压帽卡设于所述第一台阶孔，所述按键支柱穿设于所述防水套管内，所述按键支柱上设有第一环形凹槽，所述第一环形凹槽内设有环形密封件。
作为一种具体的实施例，所述按压帽的外侧壁上设有第二环形凹槽，所述第二环形凹槽内设有环形密封件。
所述按键支柱靠近所述表壳内侧的一端设置有第三环形凹槽，所述第三环形凹槽套设有防水垫片，当所述按键处于初始位置时，所述防水垫片紧贴所述表壳的内壁；当所述按键向所述表壳内侧按压时，所述防水垫片与所述表壳分离，所述第二环形凹槽内的环形密封件进入所述第一台阶孔内形成密封。
进一步地，所述环形密封件为聚氨酯密封环。
作为一种具体的实施例，所述第一台阶孔的底部设置有用以防止所述防水套管脱出的固定垫片。
进一步地，所述按压帽与所述固定垫片之间设置有弹性元件连接。
作为一种具体的实施例，所述防水套管与所述通孔为过盈配合。
作为一种具体的实施例，所述防水套管内壁的两端设有倒角。
与现有技术相比，本实用新型具有以下技术效果：
本实用新型的手表的按键防水结构，其表壳上从外到内依次设有相互连通 的第一台阶孔、第二台阶孔、第三台阶孔和通孔，按键的按键支柱与通孔之间设有防水套管，防水套管靠近表壳外侧的一端设有密封环，密封环卡设于第二台阶孔内，第三台阶孔在密封环的阻隔下形成一个环形密封腔，环形密封腔内设有环形密封件；由于防水套管与表壳之间的空隙被环形密封腔内的环形密封件密封，且按键按压时，防水套管与表壳之间相对静止，两者之间的密封性更加稳定。另外，防水套管通过铸造直接成型，其表面无需经过加工，按键与防水套管之间的密封性能更好地保证。
进一步，按压帽的外侧壁上设有第二环形凹槽，第二环形凹槽内设有环形密封件；按键支柱靠近表壳内侧的一端设置有第三环形凹槽，第三环形凹槽套设有防水垫片，当按键处于初始位置时，防水垫片紧贴表壳的内壁，防水垫片与第一环形凹槽内的环形密封件形成双重密封；当按键向表壳内侧按压时，即使防水垫片与表壳分离，第二环形凹槽内的环形密封件进入第一台阶孔内，按键结构内仍然存在双重密封。
进一步地，第一台阶孔的底部设置有用以防止防水套管脱出的固定垫片，按压帽与固定垫片之间设置有弹性元件连接；固定垫片使防水套管不会轻易从表壳脱落，而按压帽与固定垫片之间的弹性元件能使按键在按压之后能够自动复位。
为了更好地理解和实施，下面结合附图详细说明本实用新型。
附图说明
图1是本实用新型的手表的按键防水结构的结构示意图；
图2是图1中A处的放大图；
图3是本实用新型的防水套管的结构示意图；
图4是本实用新型的按键的结构示意图。
具体实施方式
请参阅图1-4，一种手表的按键防水结构，其包括：表壳1、防水套管2和按键3；所述表壳1上从外到内依次设有第一台阶孔11、第二台阶孔12、第三台阶孔13和通孔14，所述第一台阶孔11、第二台阶孔12、第三台阶孔13和通孔14同轴设置且相互连通；所述防水套管2穿设于所述通孔14，其靠近所述表壳1外侧的一端设有密封环21，所述密封环21卡设于所述第二台阶孔12内，所述第三台阶孔13在所述密封环21的阻隔下形成一个环形密封腔4，所述环形密封腔4内设有环形密封件5；所述按键3包括按压帽31和按键支柱32，所述按压帽31卡设于所述第一台阶孔11，所述按键支柱32穿设于所述防水套管2内，所述按键支柱32上设有第一环形凹槽321，所述第一环形凹槽321内设有环形密封件5，环形密封件5用于密封所述第一环形凹槽321与所述防水套管2之间的空隙。
具体地，所述按压帽31的外侧壁上设有第二环形凹槽311，所述第二环形凹槽内7设有环形密封件5，所述环形密封件5用于密封所述第二环形凹槽311与第一台阶孔11之间的空隙。
另外，所述按键支柱32靠近所述表壳1内侧的一端设置有第三环形凹槽322，所述第三环形凹槽322套设有防水垫片6，当所述按键3处于初始位置时，所述防水垫片6紧贴所述表壳1的内壁；当所述按键3向所述表壳1内侧按压时，所述防水垫片6与所述表壳1分离，所述第二环形凹槽311内的环形密封件5进入所述第一台阶孔11内形成密封。
优选地，所述环形密封件5为聚氨酯密封环。
具体地，所述第一台阶孔11的底部设置有用以防止所述防水套管2脱出的固定垫片7。
优选地，所述按压帽31与所述固定垫片7之间设置有弹性元件8连接。
具体地，所述防水套管2与所述通孔14为过盈配合。
具体地，所述防水套管2内壁的两端设有倒角。
本实用新型并不局限于上述实施方式，如果对本实用新型的各种改动或变形不脱离本实用新型的精神和范围，倘若这些改动和变形属于本实用新型的权利要求和等同技术范围之内，则本实用新型也意图包含这些改动和变形。

Claims (7)

  1. 一种手表的按键防水结构，其特征在于，包括：
    表壳、防水套管和按键；
    所述表壳上从外到内依次设有第一台阶孔、第二台阶孔、第三台阶孔和通孔，所述第一台阶孔、第二台阶孔、第三台阶孔和通孔同轴设置且相互连通；
    所述防水套管穿设于所述通孔，其靠近所述表壳外侧的一端设有密封环，所述密封环卡设于所述第二台阶孔内，所述第三台阶孔在所述密封环的阻隔下形成一个环形密封腔，所述环形密封腔内设有环形密封件；
    所述按键包括按压帽和按键支柱，所述按压帽卡设于所述第一台阶孔，所述按键支柱穿设于所述防水套管内，所述按键支柱上设有第一环形凹槽，所述第一环形凹槽内设有环形密封件。
  2. 根据权利要求1所述的手表的按键防水结构，其特征在于：
    所述按压帽的外侧壁上设有第二环形凹槽，所述第二环形凹槽内设有环形密封件；
    所述按键支柱靠近所述表壳内侧的一端设置有第三环形凹槽，所述第三环形凹槽套设有防水垫片，当所述按键处于初始位置时，所述防水垫片紧贴所述表壳的内壁；当所述按键向所述表壳内侧按压时，所述防水垫片与所述表壳分离，所述第二环形凹槽内的环形密封件进入所述第一台阶孔内形成密封。
  3. 根据权利要求2所述的手表的按键防水结构，其特征在于：
    所述环形密封件为聚氨酯密封环。
  4. 根据权利要求1所述的手表的按键防水结构，其特征在于：
    所述第一台阶孔的底部设置有用以防止所述防水套管脱出的固定垫片。
  5. 根据权利要求4所述的手表的按键防水结构，其特征在于：
    所述按压帽与所述固定垫片之间设置有弹性元件连接。
  6. 根据权利要求1所述的手表的按键防水结构，其特征在于：
    所述防水套管与所述通孔为过盈配合。
  7. 根据权利要求6所述的手表的按键防水结构，其特征在于：
    所述防水套管内壁的两端设有倒角。
PCT/CN2018/112525 2018-03-16 2018-10-30 一种手表的按键防水结构 WO2019174247A1 (zh)

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CN201820367065.3 2018-03-16
CN201820367065.3U CN208014588U (zh) 2018-03-16 2018-03-16 一种手表的按键防水结构

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CN208014588U (zh) * 2018-03-16 2018-10-26 江门市圣猴时实业有限公司 一种手表的按键防水结构
CN110867334A (zh) * 2019-11-28 2020-03-06 歌尔科技有限公司 一种防水按键装置及具有该装置的tws充电盒
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