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Automatic faucet

A faucet, automatic technology, applied in water supply installations, indoor sanitary pipe installations, buildings, etc., can solve problems such as reduced operability, water leakage, and difficulty in assembling the O-ring 222, and achieve the effect of good operability.

Inactive Publication Date: 2014-08-13
LIXIL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, there is a problem that the work of assembling the O-ring 222 to the optical fiber 212 is very difficult, the workability when the end portion of the optical fiber is coupled to the water spray pipe 200 sealed with the O-ring 222 is reduced, and cannot be sufficiently Achieving Sealed Reliability
[0017] As mentioned above, there is a risk of water leakage at the location of the end portion of the optical fiber 212 if the seal is insufficient

Method used

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Examples

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Embodiment Construction

[0079] Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings.

[0080] exist figure 1 In , reference numeral 10 is the automatic water faucet of this embodiment, and reference numeral 12 is a water spray pipe in the automatic water faucet 10 . Here, the spray pipe 12 is made of metal and is a casting.

[0081] The water spray pipe 12 is installed on the washstand (additional base plate) 14 in an upright form, the upper part has an inverted U-shaped gooseneck shape, and the end face of the water spray pipe 12 is inclined forward and downward toward the user.

[0082] like figure 1 and figure 2 As shown, a substantially rectangular opening 16 corresponding to the cross-sectional shape of the spray pipe 12 is formed at the tip of the spray pipe 12 .

[0083] like figure 2 As shown, the spray pipe 12 has a main body pipe 12A exposed on the washstand 14, and a coupling portion 12B constituting a bottom end portion....

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Abstract

An automatic faucet configured in such a manner that optical fibers are passed through the inside of the water discharge pipe and a light projecting section and a light receiving section are formed at the front ends of the optical fibers, wherein the front ends of the optical fibers can be easily sealed with high reliability and good work efficiency. An automatic faucet configured in such a manner that a light projecting optical fiber (50) and a light receiving optical fiber (52) are passed through the water discharge pipe (12) up to the front end thereof, and that a light projecting section (70) and a light receiving section (72) are formed at the front ends of the optical fibers (50). Tubular outer cover members (80) are connected to and fitted over the front ends of the optical fibers (50, 52) in a watertight manner. The outer cover members (80) are inserted into insertion holes (84) of a water discharge opening member (56) mounted to the inner surface of the water discharge pipe (12) in a watertight manner, and the gaps between the outer cover members (80) and the insertion holes (84) are sealed by O-rings (96) in a watertight manner.

Description

technical field [0001] The present invention relates to an automatic water faucet that automatically discharges water from a water spout based on detection of a detection target using an optical sensor, and in particular, to an automatic water faucet using an optical fiber. Background technique [0002] At present, automatic water faucets have been widely used in places such as public toilets, toilets, etc., which are provided with a light projection part and a light receiving part in the end part of the water spray pipe and include an optical sensor (hereinafter, referred to as a sensor for short). The light receiving part receives reflected light from the detection target (such as the user's hand) projected on the light projection part to detect the detection target. [0003] In the automatic water faucet, water is automatically discharged based on detection of a detection target using a sensor. Normally, the sensor determines the presence of a detection target when the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03C1/05
CPCE03C1/057
Inventor 板头伸明
Owner LIXIL CORP