CN2908945Y - 电热水器进水管防逆阀 - Google Patents

电热水器进水管防逆阀 Download PDF

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Publication number
CN2908945Y
CN2908945Y CN 200620014104 CN200620014104U CN2908945Y CN 2908945 Y CN2908945 Y CN 2908945Y CN 200620014104 CN200620014104 CN 200620014104 CN 200620014104 U CN200620014104 U CN 200620014104U CN 2908945 Y CN2908945 Y CN 2908945Y
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outer tube
water
pipe
inner tube
tube
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CN 200620014104
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徐志权
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Meaning electrical appliance (Shenzhen) Co., Ltd.
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SHENZHEN JINZHENFU HARDWARE ELECTRICAL EQUIPMENT CO Ltd
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Abstract

一种电热水器进水管防逆阀,它包括圆形内管1、圆形外管2,内管1的外径小于外管2的内径,内管1通过定位板3固定在外管2内,所述内管1与外管2的出水端错位,在内管1出水端的管端有活动的,其横截面为T形的挡水阀4,挡水阀4的阀柄42外径小于内管2内径,其阀盖41外径大于内管2外径小于外管2内径;在外管2出水端的管端有带孔51的挡板5,在外管2内壁与内管2外壁之间有间隙6。进水时,水从下面沿箭头方向流进内管1,冲开挡水阀4进水;当进水突然停止时,则从孔51进入空气,挡水阀4下落,塞住内管1,可以防止电热水器内的水回流。

Description

电热水器进水管防逆阀
技术领域
本实用新型涉及一种用于电热水器上的电热水器进水管防逆阀。
背景技术
现有的电热水器,一般都有进水管和出水管,以及电加热器,电加热器安装在电热水器的内胆中,在内胆外有防止温度变低的保温层,这种热水器的进水压力必须保证在一定压力范围之内,如果进水管突然停水,进水管失去压力,则内胆中的热水会沿着进水管流失,这一方面会对使用者带来不便,会减少使用者的有效水用量,另一方面也是一种水资源和电能的浪费;更甚者会出现电加热器在内胆内干烧,损坏内胆及电热水器,甚至引起火灾。
发明内容
本实用新型解决的技术问题是克服上述缺点,提供一种当电热水器的进水突然停水时,可以防止水箱内的水倒流的电热水器进水管防逆阀。
本实用新型的技术方案是:设计一种电热水器进水管防逆阀,包括内管、外管,内管的外径小于外管的内径,内管通过定位板固定在外管内,所述内管与外管的出水端错位,在内管出水端的管端有活动的,其横截面为T形的挡水阀,挡水阀的阀柄外径小于内管内径,其阀盖外径大于内管外径小于外管内径;在外管出水端的管端有带孔的挡板,在外管内壁与内管外壁之间有间隙。
所述内管和外管为圆形。
本实用新型由于采用了内管与外管的出水端错位,在内管出水端的管端有活动的,其横截面为T形的挡水阀,挡水阀的阀柄外径小于内管内径,其阀盖外径大于内管外径小于外管内径;在外管出水端的管端有带孔的挡板,在外管内壁与内管外壁之间有间隙的结构,这样,当进水时,在水压的作用下,可将挡水阀冲开进水,当进水管突然停水时,挡水阀下落,电热水器内的水不会外流,起到了防逆流的作用。
附图说明
图1:为本实用新型剖视示意图;
图2:为本实用新型A处放大示意图;
图3:为本实用新型B-B剖视的示意图;
图4:为本实用新型使用状态示意图。
具体实施方式
请参见图1至图3,图1为本实用新型剖视示意图;图2为本实用新型A处放大示意图;图3为本实用新型B-B剖视的示意图;从图可以看出,本实用新型为一种电热水器进水管防逆阀,它包括圆形内管1、圆形外管2,内管1的外径小于外管2的内径,内管1通过定位板3固定在外管2内,所述内管1与外管2的出水端错位,在内管1出水端的管端有活动的,其横截面为T形的挡水阀4,挡水阀4的阀柄42外径小于内管2内径,其阀盖41外径大于内管2外径小于外管2内径;在外管2出水端的管端有带孔51的挡板5,在外管2内壁与内管2内壁之间有间隙6。进水时,水从下面沿箭头方向流进内管1,冲开挡水阀4进水;当进水突然停止时,则从孔51进入空气,挡水阀4下落,塞住内管1,可以防止电热水器内的水回流。
请参见图4,图4为本实用新型使用状态示意图,本防逆阀安装在具有两个内胆7的电热水器内,正常水10从防逆阀的内管1的下口进入内胆7内;在内胆7内有电加热器11,与内胆7相连还有出水管13和排污阀13,在内胆7外壁有保温层9,内胆7及保温层9安装在外壳8内。

Claims (3)

1、一种电热水器进水管防逆阀,其特征在于:包括内管、外管,内管的外径小于外管的内径,内管通过定位板固定在外管内,所述内管与外管的出水端错位,在内管出水端的管端有活动的,其横截面为T形的挡水阀,挡水阀的阀柄外径小于内管内径,其阀盖外径大于内管外径小于外管内径;在外管出水端的管端有带孔的挡板,在外管内壁与内管外壁之间有间隙。
2、根据权利要求1所述的电热水器进水管防逆阀,其特征在于:所述内管为圆形。
3、根据权利要求1或2所述的电热水器进水管防逆阀,其特征在于:所述外管为圆形。
CN 200620014104 2006-05-26 2006-05-26 电热水器进水管防逆阀 Expired - Fee Related CN2908945Y (zh)

Priority Applications (1)

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CN 200620014104 CN2908945Y (zh) 2006-05-26 2006-05-26 电热水器进水管防逆阀

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CN 200620014104 CN2908945Y (zh) 2006-05-26 2006-05-26 电热水器进水管防逆阀

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287919A (zh) * 2010-06-15 2011-12-21 佛山市高明万和电气有限公司 电热水器的进水装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287919A (zh) * 2010-06-15 2011-12-21 佛山市高明万和电气有限公司 电热水器的进水装置
CN102287919B (zh) * 2010-06-15 2013-12-25 广东万和电气有限公司 电热水器的进水装置

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: LUFTHANSA INTENDED ELECTRIC (SHENZHEN) CO., LTD.

Free format text: FORMER OWNER: SHENZHEN JIN ZHEN FU HARDWARE ELECTRICAL APPLIANCE CO., LTD.

Effective date: 20071130

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20071130

Address after: Henggang Town, Longgang District of Shenzhen City, Guangdong Anliang village, Anwar Road No. 31 Lianghua Industrial Zone Third, zip code: 518000

Patentee after: Meaning electrical appliance (Shenzhen) Co., Ltd.

Address before: Henggang Longgang District of Shenzhen City, Guangdong Province Kang Xiang Xin Tang Cun Anwar Road No. 1, zip code: 518000

Patentee before: Shenzhen Jinzhenfu Hardware Electrical Equipment Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070606

Termination date: 20150526

EXPY Termination of patent right or utility model