CN2896229Y

CN2896229Y - Novel water-drip meter

Info

Publication number: CN2896229Y
Application number: CN 200620030093
Authority: CN
Inventors: 曹卫红; 李道新
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-17
Filing date: 2006-02-17
Publication date: 2007-05-02
Anticipated expiration: 2016-02-17

Abstract

The utility model relates to a novel water-dripping measuring water meter, wherein a water storage tank (7) is provided at the bottom of the water meter core, the pressure control valve is arranged at the water inlet end, the inner end surface of the screwed-down nut (1) is provided with a sealing washer (2) of a L-shaped section provided on the front end of the locking ring (3) and the locking ring is screwed down on the inner whorl of the screwed-down nut; a pressure valve(4) with the section that is like the E-shaped gyrator is provided and a pressure spring is arranged on the external surface of the central cylinder of the pressure value (5); the end of the central cylinder is provided on the central hole of the locating tab (6) on which a water outlet is provided, end surface of the locating tab is set against the protruding support on the inner surface of the shell of the measuring water meter, and the screwed-down nut tightened with the whorl of the shell of the water meter (8). Supposed that the pressure propelling the meter core impeller to revolve is P2, the pressure needed to open the valve is P1. When P1 is less than or equal to P2, the valve is closed automatically; when P1>P2, the valve is opened, the water flow propels the meter core impeller to revolve and the measurement begins. The meter is characterized in that the model has an accurate measurement, a simple structure and a low manufacture cost.

Description

A kind of novel dripping water meter

Technical field:

The utility model relates to the water metering device technical field, particularly a kind of novel dripping water meter.

Background technology;

China's town and country domestic use of water is collected water rate with the tap water meter metering, but scarcity along with water resource, in order to encourage people's consciousness of saving water, measure inaccurate problem to existing the evaporating, emitting, dripping or leaking of liquid or gas low discharge in the current application of the metering of water meter, for example: LX15B domestic water meter commonly used, according to national Specification, minimum flow 30L/h can calculate thus: annual each household roughly causes disregards water gaging 259m ³Calculate by the whole nation, quantity will be very big, do not utilize the good custom of the conscious water saving of encouraging people like this, since nearly 2 years, some producer begins to note research and produces water-saving type water meter, relatively more outstanding a kind of be speed mode, it is provided with jet orifice on the basis of original water gauge, water penetrates from jet orifice during the little water yield, promote the metering of watch core wheel rotation, it is simple in structure, and cost is low, the defective that exists is: during low discharge, variable causes overcharge greater than the actual used water value, resident's strong reaction; Another kind is the positive displacement dripping water meter, and it has installed pressure control valve and compression reservoir chamber additional on the basis of common water meter.If promoting the pressure of watch core impeller rotation is P2, opening the required pressure of valve is P1, when P1≤P2, and valve closing, valve open when P1＞P2, current promote the rotation of watch core impeller, begin metering.Compare with the speed mode gauging table that drips, accurate measurement, but its structure is complicated, the problem that manufacturing cost is high.

Summary of the invention:

In order to overcome the problem that existing water meter can not measure the weep amount, the purpose of this utility model provides a kind of positive displacement dripping water meter, makes it simple in structure, energy accurate measurement water consumption, and reminds people is noted the drop water.

Described dripping water meter, it has a reservoir chamber at water meter watch core lower bottom part, in inlet end pressure control valve is set.Be provided with the O-ring seal in a L type cross section that is sleeved on the retaining ring front end at the inner face of fastening nut, retaining ring is tightened on the internal thread of fastening nut; There is a cross section to be the solid of revolution pressure valve of E shape, has pressure spring at the outside surface of the central cylinder of E shape solid of revolution pressure valve; The rear end of central cylinder is sleeved in the center pit of spacer; The screw thread of fastening nut and water meter case screws and connects to form.

Described dripping water meter has apopore on its spacer, and the spacer end face leans against on the watch shell inside surface boss.

Owing to adopted aforesaid technical scheme, the utlity model has following good effect:

Owing to adopted structure with spring controlled pressure valve, pressure control valve and compression reservoir chamber have been installed additional, solved up hill and dale and existed evaporating, emitting, dripping or leaking of liquid or gas in the common water meter metrology applications and measure inaccurate problem, compare with the existing positive displacement gauging table that drips, it is complicated to have solved its structure, the problem that manufacturing cost is high.There is not the accurate cooperation of dimension chain in whole erection, valve assembling simple (whole assembling process was less than one minute) reduces production costs greatly, market outlook are good. and this structure is the simplest a kind of in the present positive displacement drip water meter development. and the measuring accuracy height, reasonable in design, especially this pressure control valve not only has the valve effect that opens and closes current, but also has the position-limiting action of spring guiding, valve guiding and restriction current.

Description of drawings:

Fig. 1 is the structural representation of dripping water meter.

Among the figure; The 1-fastening nut; The 2-O-ring seal; The 3-retaining ring; The 4-pressure valve; The 5-pressure spring; The 6-spacer; The 7-reservoir chamber; The 8-watch shell; The 9-watch core.

Embodiment:

This dripping water meter, it has a reservoir chamber (7) at water meter watch core lower bottom part, in inlet end pressure valve (4) is set, is provided with the O-ring seal (2) in a L type cross section that is sleeved on retaining ring (3) front end at the inner face of fastening nut (1), retaining ring is tightened on the internal thread of fastening nut; There is a cross section to be the pressure valve (4) of E shape solid of revolution, has pressure spring (5) at the outside surface of the central cylinder of E shape solid of revolution pressure valve; The rear end of central cylinder is sleeved in the center pit of spacer (6), and its spacer has apopore on (6), and the spacer end face leans against on the metering water meter shell inner surface boss, and fastening nut (1) screws with the screw thread of water meter case (8).

If promoting the pressure of watch core impeller rotation is P2, opening the required pressure of valve is P1, when P1≤P2, and valve closing, valve open when P1＞P2, current promote the rotation of watch core impeller, begin metering.Accurate measurement, simple in structure, low cost of manufacture.

Claims

1. novel dripping water meter, it has a reservoir chamber (7) at water meter watch core lower bottom part, it is characterized in that: described dripping water meter, in inlet end pressure control valve is set, be provided with the O-ring seal (2) in a L type cross section that is sleeved on retaining ring (3) front end at the inner face of fastening nut (1), retaining ring is tightened on the internal thread of fastening nut; There is a cross section to be the pressure valve (4) of E shape solid of revolution, has pressure spring (5) at the outside surface of the central cylinder of E shape solid of revolution pressure valve; The rear end of central cylinder is sleeved in the center pit of spacer (6); Fastening nut (1) screws with the screw thread of water meter case (8).

2. novel dripping water meter as claimed in claim 1 is characterized in that: described dripping water meter, and its spacer has apopore on (6), and the spacer end face leans against on the metering water meter shell inner surface boss.