WO2011063601A1 - 防水水表 - Google Patents

防水水表 Download PDF

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Publication number
WO2011063601A1
WO2011063601A1 PCT/CN2010/001832 CN2010001832W WO2011063601A1 WO 2011063601 A1 WO2011063601 A1 WO 2011063601A1 CN 2010001832 W CN2010001832 W CN 2010001832W WO 2011063601 A1 WO2011063601 A1 WO 2011063601A1
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WO
WIPO (PCT)
Prior art keywords
sealing ring
water meter
case
bottom case
waterproof
Prior art date
Application number
PCT/CN2010/001832
Other languages
English (en)
French (fr)
Inventor
黄志�
曾军民
黄建林
Original Assignee
深圳长城开发科技股份有限公司
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Publication of WO2011063601A1 publication Critical patent/WO2011063601A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14—Casings, e.g. of special material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/005—Valves

Definitions

  • the utility model relates to a metering device, in particular to a water meter. Background technique
  • An existing water meter such as an electronic remote water meter disclosed in Chinese Patent No. CN200620003882. 3, is composed of a waterproof casing, a water meter, a ball valve, a micro-generator, a communication machine, a battery, a charger, a ball valve drive circuit, and a drive motor.
  • one end of the ball valve is connected to the water inlet of the water meter, the other end is connected with the micro-generator, the micro-generator is electrically connected with the charger, and the battery is charged by the micro-power DC boost circuit, the battery and the ball valve driving circuit and The electric energy of the driving motor is supplied by the battery, the digital camera set on the communication machine, the infrared lamp is aligned with the digital device of the water meter, the time-lapse image is automatically dialed, and the radio communication system is used to communicate with the water company.
  • a waterproof outer casing no more explanation is given regarding the realization of the waterproof structure.
  • Cid patent CN200720090820. X discloses a submersible electronic remote water meter, which is composed of a mechanical part, an electronic circuit board and a battery case, an electronic circuit board is on the upper part of the mechanical part, and the battery case is in the mechanical part.
  • the electronic circuit board, the mechanical part and the battery case are all mounted in the surface of the water meter case, wherein the electronic circuit board is at the bottom of the sealed box, and a waterproof rubber seal is arranged between the electronic circuit board and the bottom surface of the sealed box.
  • the purpose of the utility model is to overcome the deficiencies of the prior art, and to propose a waterproof water meter with simple installation process, good production quality control and suitable for mass production.
  • the present invention provides a waterproof water meter including a base having a meter head and a controlled width, a circuit portion, and a waterproof housing, the circuit portion including a driver for operating the controlled valve, the waterproof a housing is disposed on the base surface and the circuit portion and the header are sealed, the waterproof housing includes a bottom case that cooperates with the base surface and an upper cover that cooperates with the lower case, the upper cover includes The upper case is matched with the upper case and the transparent window is disposed in the upper case, and the transparent window corresponds to the head in the base table, and the transparent window and the upper case are integrally formed by double injection molding.
  • a first sealing ring is disposed between the bottom case and the upper case, and the first sealing ring is pressed by a plurality of places using ultrasonic spot welding and a plurality of fasteners to make the bottom case and the upper case The joint is sealed.
  • the first sealing ring is pressed between the bottom case and the upper case by ultrasonic spot welding and three kinds of fasteners.
  • the bottom case is provided with a first opening that cooperates with the meter head and a second opening that cooperates with the controlled valve.
  • the first opening is provided with a second sealing ring, and the second opening is provided with a third sealing ring.
  • the second sealing ring is located between the bottom case and the head, and the first opening is sealed by fixing the bottom case to the base table by means of a fastener to press the second sealing ring.
  • the second sealing ring is located in the bottom case, and the second opening is sealed by fixing the driver to the bottom case by means of a fastener to press the third sealing ring.
  • the upper casing is provided with a vertically extending battery chamber, and the upper casing further includes a hollow stud projecting upward from the surface of the upper casing and penetrating the battery cavity, and a nut matching the hollow stud.
  • a fourth sealing ring is disposed between the cap and the hollow stud, and the nut seals the joint of the nut and the hollow stud by pressing the fourth sealing ring.
  • the upper casing further includes an antenna cap projecting upward from a surface of the upper casing.
  • the hollow stud and the antenna cap are both disposed in the middle of the upper casing, corresponding to the position between the head and the controlled valve in the base meter.
  • guard band that surrounds the head of the base watch.
  • the waterproof water meter of the utility model can meet the dustproof and waterproof requirements of the IP68 grade by adopting the double injection molding technology and the sealing ring waterproofing scheme, and the installation process is simple, the production quality is well controlled and suitable for large scale. produce.
  • FIG. 1 is a perspective exploded view showing the overall structure of an embodiment of a waterproof water meter of the present invention.
  • FIG 2 is a perspective view of the upper cover portion of the waterproof water meter embodiment of the present invention.
  • Fig. 3 is a schematic cross-sectional view showing the entire structure of an embodiment of the waterproof water meter of the present invention, in which the cooperation between the bottom case and the watch head is shown.
  • FIG. 4 is a schematic view of a waterproof case of the embodiment of the waterproof water meter of the present invention.
  • Figure 5 is a cross-sectional view showing the overall structure of the embodiment of the waterproof water meter of the present invention, in which the cooperation between the bottom case and the controlled valve and the driver is shown.
  • Fig. 6 is a schematic cross-sectional view showing the entire structure of an embodiment of the water-repellent water meter of the present invention, in which the cooperation between the battery compartment and the battery and the antenna cap and the antenna is shown. detailed description
  • the structure of the waterproof water meter embodiment of the present invention includes: a base watch 1, a bottom case 2, an upper cover 3, a circuit portion 4, a guard band 5, and is disposed between the bottom case 2 and the upper cover 3 a first first sealing ring 6, a second sealing ring 7 disposed between the bottom case 2 and the base watch 1, a third sealing ring 8 disposed in the bottom case 2, and a fourth seal disposed in the upper cover Circle 9, these seals 6, 7, 8, and 9 are made of silica gel with a small hardness.
  • the upper cover 3 and the bottom case 2 enclose a waterproof housing. among them,
  • the base table 1 is a water meter including a water inlet 11, a water outlet 12, a head 13 and a controlled valve 14. There are three screw holes 131 in the periphery of the head 13.
  • the controlled width 14 has a protruding portion 141.
  • the bottom case 2 is an injection molded plastic part, comprising: a first opening 21 cooperating with the head 13, a second opening 22 cooperating with the protruding portion 141 of the controlled valve 14, and a screw with the periphery of the head 13. a mounting post 23 mated with the hole 131, a screw 24 mated with the other two screw holes 131 at the periphery of the head 13 , a sealing screw 25 mated with the mounting post 23 , two studs 26 , three welding holes 27 , and Four mounting studs 28.
  • the second and third seal rings 7, 8 are respectively disposed at the first and second openings 21, 22 of the base watch 1.
  • the first opening 21 of the bottom case 2 is sealingly fixed to the base watch 1 by pressing the second seal ring 7 by screws 24 and 25 which are bored through the three screw holes 131.
  • the upper cover 3, see Fig. 2, is an injection molded plastic part comprising: an upper case 31 and a transparent window 32.
  • the transparent window 32 corresponds to the header 13 in the base table 1.
  • the double injection molding technology is adopted between the transparent window 32 and the upper casing 31, and the transparent window 32 is first injection molded; then the transparent window 32 is fixed on the injection mold, and the edge of the transparent window 32 is wrapped by the second injection molding.
  • the upper case 31 is molded such that the transparent window 32 is integrated with the upper case 31 to achieve a sealed connection between the transparent window 32 and the upper case 31.
  • the structure of the upper case 31, see Figs. 3 and 4, includes: a mounting hole 311, a screw 312, a welding post 313, a battery compartment 314, and an antenna cap 315. among them,
  • the mounting hole 311 corresponds to the mounting post 23 on the bottom case 2 and the sealing screw 25, so that the upper case 31 and the bottom case 2 are connected by fasteners at three places; three splicing posts 313 and three on the bottom case 2
  • the splicing holes 27 correspond to each other, so that the upper case 31 and the bottom case 2 can be connected by ultrasonic spot welding at three places by ultrasonic splicing.
  • Two mounting holes 311 and two screws 312 correspond to the two studs 26 on the bottom case 2, one safety
  • the first sealing ring 6 is disposed between the upper case 31 and the bottom case 2.
  • the structure of the battery compartment 314 includes a cylindrical vertical battery chamber 3141, a hollow stud 3142, and a nut 3143 formed on the upper casing 31.
  • the hollow stud 3142 protrudes upward from the surface of the upper casing 31 and penetrates the battery chamber 3141.
  • the nut 3143 is engaged with the hollow stud 3142.
  • the fourth seal ring 9 is disposed between the nut 3143 and the hollow stud 3142.
  • the tightening nut 3143 can press the fourth sealing ring 9 to seal the battery compartment 314.
  • the circuit portion 4 is housed in a waterproof housing surrounded by the upper cover 3 and the bottom case 2, and includes: a circuit module 41, a driver 42, a battery 43, and an antenna 44.
  • the circuit module 41 is powered by the battery 43 and connected to the driver 42 and the antenna 44 to convert the metering signal given by the meter of the base meter 1 into a digital signal, locally processed, saved and passed through a wireless communication circuit, and
  • the antenna 44 is communicably connected to the external device via the antenna 44, so that the three-way waterproof water meter can be realized.
  • the driver 42 is controlled by the circuit module 41 to drive the controlled valve 14, such as: opening, closing or adjusting the flow.
  • the driver 42 is fixed to the bottom by four screws 421 and four mounting studs 28 on the bottom case 2.
  • the casing 2 is pressed against the third sealing ring 8 located below the driver 42.
  • the battery 43 is housed in the battery compartment 314 described above.
  • the antenna 44 is an antenna cap 315 standing vertically on the base surface 1 and extending upward to the upper casing 31 to allow the antenna 44 to be vertically placed on the base surface 1 and having a certain height.
  • the battery compartment 314 and the antenna cap 315 are both disposed in the middle of the upper casing 31, corresponding to the position between the head 13 and the controlled valve 14 in the base meter 1.
  • the protective band 5 is made of stainless steel and surrounds the head 13 of the base watch 1 to protect the head 13 from external agression, for example, drilling the side portion of the head 13.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Casings For Electric Apparatus (AREA)

Description

防水水表 技术领域
本实用新型涉及一种计量设备， 尤其涉及水表。 背景技术
现有的水表， 如中国专利 CN200620003882. 3所公开的一种电子遥控水表， 其由防水 外壳、 水表、 球阀、 微型发电机、 通信机、 电池、 充电器、 球阀驱动电路以及驱动电机组 成。 在防水外壳中， 球阀的一端与水表进水口连接， 另一端与微型发电机连接， 微型发电 机与充电器电连接， 经微功耗的直流升压电路给电池充电， 电池、 球阀驱动电路以及驱动 电机的电能有电池供给， 通信机上设置的数码相机、 红外线灯对准水表的数码器、 定时拍 摄图像并自动拨号， 通过无线电市话通信系统与自来水公司通信。 其中， 虽然有提到防水 外壳， 但是并未就防水结构的显现实现予以更多的说明。
为了解决水表的防水问题， 中国专利 CN200720090820. X公开了一种潜水式电子远传 水表， 其由机械部分、 电子电路板和电池盒组成， 电子电路板在机械部分的上部， 电池盒 在机械部分和电子电路板中间， 电子电路板、 机械部分和电池盒均装在水表表壳腔体内， 其中电子电路板在密封盒底部， 电子电路板与密封盒底面之间有一层防水胶固封垫， 密封 盒下底盒一个侧面上有两个导线引出孔， 导线引出孔的孔径为导线的两倍， 导线周围与导 线引出孔之间有防水胶密封圈， 密封盒上盖与密封盒下底盒有防水胶密封垫。 这种结构， 在需要密封的地方， 采用胶水粘贴的方式， 安装工艺复杂， 生产质量不好控制， 不适合大 规模生产。 发明内容
本实用新型的目的在于克服现有技术的不足， 而提出一种安装工艺简单， 生产质量好 控制并且适合大规模生产的防水水表。
为了实现上述的目的，本实用新型提出一种防水水表，包括具有表头和受控阔的基表、 电路部分以及防水壳体， 该电路部分包括用以操控该受控阀的驱动器， 该防水壳体设置在 该基表上并将该电路部分和该表头密封在内，该防水壳体包括与该基表配合的底壳和与该 下壳配合的上盖， 该上盖包括与该下壳配合的上壳和设置在该上壳中的透明窗， 该透明窗 与该基表中的表头对应， 该透明窗与该上壳是采用二次注塑成型而成一体的。
该底壳与该上壳之间设置有第一密封圈，并于多处采用超声点焊以及多处采用紧固件 的混合方式压紧该第一密封圈而使该底壳与该上壳的连接处密封。
该底壳与该上壳之间是三处采用超声点焊以及三处采用紧固件的混合方式压紧该第 一密封圈的。 该底壳设有与该表头配合的第一开口和与该受控阀配合的第二开口，该第一开口处设 置有第二密封圈， 该第二开口处设置有第三密封圈。 ·
该第二密封圈位于该底壳与该表头之间，该第一开口处是通过采用紧固件的方式固定 该底壳到该基表上来压紧该第二密封圈而密封的。
该第二密封圈位于该底壳内，该第二开口处是采用紧固件的方式固定该驱动器到该底 壳上来压紧该第三密封圈而密封的。
该上壳上设有竖直延伸的电池腔，该上壳还包括由该上壳的表面向上突伸并与该电池 腔贯通的空心螺柱及与该空心螺柱配合的螺帽， 该螺帽与空心螺柱之间设置有第四密封 圈， 该螺帽通过压紧该第四密封圈而使该螺帽与空心螺柱的连接处密封。
该上壳还包括由该上壳的表面向上突伸的天线帽。
该空心螺柱和天线帽均设置于该上壳的中部，对应于该基表中的表头和受控阀之间的 位置。
还包括围绕在该基表的表头周围的防护带。
与现有技术相比， 本实用新型的防水水表， 通过采用二次注塑成型技术和密封圈防水 方案， 能够满足 IP68等级的防尘防水要求， 并且安装工艺简单， 生产质量好控制并且适 合大规模生产。 附图说明
图 1是本实用新型的防水水表实施例的整体结构的立体分解示意图。
图 2是本实用新型的防水水表实施例的上盖部分的立体示意图。
图 3是本实用新型的防水水表实施例的整体结构的剖面示意图， 其中， 示出了底壳与 表头之间的配合。
图 4是本实用新型的防水水表实施例的防水壳体的示意图。
图 5是本实用新型的防水水表实施例的整体结构的剖面示意图， 其中， 示出了底壳与 受控阀以及驱动器之间的配合。
图 6是本实用新型的防水水表实施例的整体结构的剖面示意图， 其中， 示出了电池仓 与电池以及天线帽与天线之间的配合。 具体实施方式
为了进一步说明本实用新型的原理和结构，现结合附图对本实用新型的优选实施例进 行详细说明。
本实用新型的防水水表实施例的结构， 如图 1所示， 包括： 基表 1、 底壳 2、 上盖 3、 电路部分 4、防护带 5以及设置在底壳 2与上盖 3之间的第一第一密封圈 6、设置在底壳 2 与基表 1之间的第二密封圈 7、 设置在底壳 2中的第三密封圈 8以及设置在该上盖中的第 四密封圈 9， 这些密封圈 6、 7、 8、 9均采用硬度很小的硅胶制成。 上盖 3与底壳 2围合出一防水壳体。 其中，
基表 1为一水表， 包括进水口 11、 出水口 12、 表头 13和受控阀 14。 表头 13的周边 设有三个螺孔 131。 受控阔 14具有突出部分 141。
底壳 2为一注塑成型的塑胶件， 包括： 与表头 13配合的第一幵口 21、 与受控阀 14 的突出部分 141配合的第二开口 22、 与表头 13的周边的一螺孔 131配合的安装柱 23、 与 表头 13的周边的另外两个螺孔 131配合的螺钉 24、 与该安装柱 23配合的铅封螺钉 25、 两个螺柱 26、 三个焊接孔 27以及四个安装螺柱 28。
该第二、 三密封圈 7、 8是分别设置于基表 1的第一、 二开口 21、 22处。
底壳 2的第一开口 21处通过穿设于三个螺孔 131的螺钉 24和 25压紧第第二密封圈 7 而密封地固定在该基表 1上。
上盖 3， 参见图 2， 为一注塑成型的塑胶件， 包括： 上壳 31和透明窗 32。 透明窗 32 与基表 1中的表头 13对应。
透明窗 32与上壳 31之间采用二次注塑成型技术， 是先将透明窗 32注塑成型好； 然 后把透明窗 32固定在注塑模上， 通过第二次注塑成型包住透明窗 32边缘并成型上壳 31， 使得透明窗 32与上壳 31成一体， 实现透明窗 32与上壳 31之间的密封连接。
相比于现有技术通常采用的超声焊接或者胶水粘贴而言，质量可靠，适合大规模生产。 该上壳 31的结构， 参见图 3和图 4， 包括： 安装孔 311、 螺钉 312、 焊接柱 313、 电 池仓 314和天线帽 315。 其中，
装孔 311与底壳 2上的安装柱 23以及铅封螺钉 25对应， 以实现上壳 31与底壳 2于 三处通过紧固件连接； 三个悍接柱 313与底壳 2上的三个悍接孔 27对应， 从而可通过超 声悍接实现上壳 31与底壳 2于三处通过超声点焊连接。 两个安装孔 311及两个螺钉 312 与底壳 2上的两个螺柱 26对应， 一个安
该第一密封圈 6是设置于该上壳 31与底壳 2之间。
上壳 31与底壳 2之间的上述的六处的连接， 可使第一密封圈 6被压紧而实现上壳 31 与底壳 2之间的密封。
电池仓 314的结构包括：形成于该上壳 31上的圆筒竖直的电池腔 3141、空心螺柱 3142 和螺帽 3143。 空心螺柱 3142是由上壳 31的表面向上突伸并与电池腔 3141贯通的， 该螺 帽 3143与空心螺柱 3142配合。
该第四密封圈 9是设置在该螺帽 3143与空心螺柱 3142之间。
拧紧螺帽 3143可压紧该第四密封圈 9而实现电池仓 314的密封。
电路部分 4， 容纳于该上盖 3与底壳 2围合出的防水壳体中， 其包括： 电路模块 41、 驱动器 42、 电池 43以及天线 44。
该电路模块 41由该电池 43供电， 并与该驱动器 42及天线 44相连， 以实现将基表 1 的表头给出的计量信号转换为数字信号， 本地处理、 保存并通过无线通信电路， 并经由该 天线 44而与外部设备通讯连接， 从而可实现防水水表的三遥。 该驱动器 42受该电路模块 41控制可带动该受控阀 14， 比如： 开启、关闭或者调整流 该驱动器 42通过四个螺钉 421与底壳 2上的四个安装螺柱 28配合而固定在底壳 2上 并压紧位于该驱动器 42下方的第三密封圈 8。
从而， 底壳 2的第二开口 22处可通过该驱动器 42压紧该第三密封圈 8而密封。 电池 43是容纳在上述的电池仓 314中。
天线 44是垂直立于基表 1， 并向上延伸至上壳 31上的天线帽 315, 以实现天线 44垂 直放置于基表 1并具有一定的高度的。
参见图 2， 电池仓 314和天线帽 315均设置于上壳 31的中部，对应于该基表 1中的表 头 13和受控阀 14之间的位置。
防护带 5 , 采用不锈钢材料制成， 围绕在基表 1的表头 13的周围， 能保护表头 13不 受外部非法侵害， 比如： 对表头 13的侧面部位进行钻孔。 以上仅为本实用新型的较佳可行实施例， 并非限制本实用新型的保护范围， 故凡运用 本实用新型说明书及附图内容所作出的等效结构变化， 均包含在本实用新型的保护范围 内。

Claims

权利要求
1.一种防水水表， 包括具有表头和受控阀的基表、 电路部分以及防水壳体， 该电路部 分包括用以操控该受控阀的驱动器，该防水壳体设置在该基表上并将该电路部分和该表头 密封在内， 其特征在于， 该防水壳体包括与该基表配合的底壳和与该下壳配合的上盖， 该 上盖包括与该下壳配合的上壳和设置在该上壳中的透明窗，该透明窗与该基表中的表头对 应， 该透明窗与该上壳是采用二次注塑成型而成一体的。
2.依据权利要求 1所述的防水水表，其特征在于，该底壳与该上壳之间设置有第一密 封圈，并于多处采用超声点焊以及多处采用紧固件的混合方式压紧该第一密封圈而使该底 壳与该上壳的连接处密封。
3.依据权利要求 2所述的防水水表，其特征在于，该底壳与该上壳之间是三处采用超 声点悍以及三处采用紧固件的混合方式压紧该第一密封圈的。
4.依据权利要求 2所述的防水水表，其特征在于，该底壳设有与该表头配合的第一开 口和与该受控阀配合的第二开口，该第一开口处设置有第二密封圈，该第二开口处设置有 第三密封圈。
5.依据权利要求 4所述的防水水表，其特征在于，该第二密封圈位于该底壳与该表头 之间，该第一开口处是通过采用紧固件的方式固定该底壳到该基表上来压紧该第二密封圈 而密封的。
6.依据权利要求 4所述的防水水表， 其特征在于， 该第二密封圈位于该底壳内， 该第 二幵口处是采用紧固件的方式固定该驱动器到该底壳上来压紧该第三密封圈而密封的。
7.依据权利要求 1所述的防水水表， 其特征在于， 该上壳上设有竖直延伸的电池腔， 该上壳还包括由该上壳的表面向上突伸并与该电池腔贯通的空心螺柱及与该空心螺柱配 合的螺帽，该螺帽与空心螺柱之间设置有第四密封圈，该螺帽通过压紧该第四密封圈而使 该螺帽与空心螺柱的连接处密封。
8.依据权利要求 7所述的防水水表，其特征在于，该上壳还包括由该上壳的表面向上 突伸的天线帽。
9.依据权利要求 8所述的防水水表，其特征在于，该空心螺柱和天线帽均设置于该上 壳的中部， 对应于该基表中的表头和受控阀之间的位置。
10.依据权利要求 1至 9任一项所述的防水水表， 其特征在于， 还包括围绕在该基表 的表头周围的防护带。
PCT/CN2010/001832 2009-11-26 2010-11-15 防水水表 WO2011063601A1 (zh)

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