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Water meter

A water meter and watch case technology that is applied to measuring devices, instruments, volume measurement, etc., and can solve problems such as blocked flow paths, reduced water volume, and impact on user use

Active Publication Date: 2009-06-10
NINGBO DONGHAI INSTR WATERWAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned water meter with filtering function, after a long time of daily use, the impurities in the tap water may accumulate on the filter to block the flow path, making the user's water volume smaller and affecting the user's use
[0006] At present, there is no water meter with good sewage discharge function on the market

Method used

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.

[0022] Such as figure 1 Shown is a preferred embodiment of the present invention.

[0023] A water meter includes a watch case 1 having a water inlet 2, an inner cavity 4 and a water outlet 3. A flow path is formed between the water inlet 2, the inner cavity 4 and the water outlet 3. The watch case 1 is composed of an upper shell 11 and a lower shell The body 12 is screwed together. The upper housing 11 has a cavity with an open upper end. The water inlet 2 is arranged at the lower part of the lower housing 11 and communicates with the cavity. The lower housing 12 has a cavity with an open lower end. The water outlet 4 is arranged on the upper part of the upper case 11 and communicates with the cavity. After the upper case 11 and the lower case 12 are screwed together, the respective cavities are combined to form the inner cavity 4 of the watch case 1. .

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Abstract

The invention relates to a water meter, comprising a frame (1) with a water inlet (2), a chamber (3), and a water outlet (4), wherein the chamber (3) is mounted with a metering device (5) inside, the side wall of the chamber (3) between the water inlet (2) and the metering device (5) is provided with a blow-off hole (6) communicated with out space, and the chamber (3) is provided with a switch device which can be opened and closed, but seal the blow-off hole (6) all the time. The switch device comprises a check-valve lever (7) and a valve lever base (8) in the chamber with an opening horizontally pointed to the blow-off hole (6). The back of the check-valve lever is axially limited in the valve lever base (8), the front of the check-valve lever (7) is through out the valve lever base (8) to switch the blow-off hole (6), and the back end of the check-valve lever (7) and the inner bottom wall of the valve lever base (8) are supported with a spring (9). When blows off pollution, the blow-off hole is opened by external force, to use the impact of flowing water, to blow off the foreign materials accumulated at lower part in the frame and the filter of the metering device to realize pollution discharge.

Description

Technical field [0001] The invention belongs to the technical field of measuring tools, and particularly relates to a water meter. Background technique [0002] Water meter is a kind of meter that measures the amount of water used by users. So far, there are many types of water meters. According to the installation direction, they can be divided into horizontal installation water meters and vertical installation water meters (also called vertical meters). For water meters whose flow direction is parallel or perpendicular to the horizontal plane, on the dial of the water meter, use "H" for horizontal installation and "V" for vertical installation. According to the counter type, it can be divided into three categories: wet water meter: the counter is immersed in water, the starting flow is small, and the anti-fouling performance is poor. After a period of use, the water quality will affect the clarity of the water meter reading; dry water meter: the counter is isolated from water ,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/11G01F15/12
Inventor 林志良
Owner NINGBO DONGHAI INSTR WATERWAY
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