CN2356323Y - Rotary wing type anti-back flow water meter - Google Patents

Abstract

The utility model belongs to a measuring device which is used for measuring the flux of a fluid which continuously flows through a meter, especially belonging to rotary wing type anti-back flow water meter. The utility model is composed of a casing, an impeller, an impeller box, a counter, and a meter cover, wherein, the diversion directions of a water inlet and a water outlet of the Impeller box are consistent, and the directions are formed in a clockwise way or an anticlockwise way. The utility model has the advantages of small changes, convenience, and economy. No matter whether the water meter is arranged in an obverse way or is arranged in an inverse way, the counter can work normally, and a person who wants to steal water has no opportunity. The utility model fundamentally solves the problem of the countdown of the water meter.

Description

Rotary wind type anti-backflow water meter

The utility model belongs to measures the measuring appliance that passes through the flow of instrument fluid continuously, especially belongs to rotor water gauge.

The shell of existing water meter generally all indicates water (flow) direction, by this direction water meter is installed, the pointer of water meter counter turns clockwise, correct counting, the counting in case the counter pointer counter-rotating of adorning water meter counter, counter fall back, so some user adorns a period of time with water meter is counter in twice is checked meter the time, the water consumption that shows on the counter is less than actual water consumption greatly like this, makes the waterworks can't regular fee.The main cause that causes water meter to fall away is that the water inlet of impeller box of rotor water gauge is opposite with the water conservancy diversion direction of water delivering orifice, impeller changeed counterclockwise when water was entered by water inlet, and water is when being entered by water delivering orifice, and impeller changes clockwise, thereby the pointer rotation direction of counter is also opposite.

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of no matter formal dress is counter adorns the rotary wind type anti-backflow water meter that counter arm can both normally be worked clockwise.

The technical scheme that adopts of the present utility model is: by the rotary wind type anti-backflow water meter that housing, impeller, impeller box, counter, table lid are formed, the water inlet of its impeller box is consistent with the water conservancy diversion direction of water delivering orifice, is all clockwise or is all counterclockwise.

Advantage of the present utility model is 1. because no matter the entery and delivery port water conservancy diversion direction unanimity of impeller box intakes from water inlet or water delivering orifice, and impeller all is to rotate in the same direction, and counter makes and thinks that the people of water has no exploits steathily all with operate as normal; 2. change for a short time, except that the impeller box water delivering orifice changed direction, all the other each parts of water meter need not to change, and were convenient, economy; 3. prevented fundamentally that the phenomenon that water meter upside-down mounting counter falls away from taking place.

Fig. 1 is the utility model structural representation

Fig. 2 is a novel impeller box synoptic diagram

Fig. 3 is the A-A cut-open view of Fig. 2

Fig. 4 is the A-A cut-open view of existing impeller box

Below in conjunction with view the utility model is described in detail.

As shown in Figure 1, the utility model covers 5 by housing 1, impeller 2, impeller box 3, counter 4, table to be formed, water is flowed into by the water inlet pipe 11 of housing 1, water inlet 31 by impeller box 3 flows into again, current impeller 2 rotation, and the rising pipe 12 that flows into housings 1 by the water delivering orifice 32 of impeller box is to the water place, the revolution of counter 4 induction impellers 2, gear ratio by in the counter 4 shows flow.

As Fig. 2, shown in Figure 3, impeller box 3 of the present utility model, six water inlets 31 are arranged, four water delivering orifices 32, its water inlet 31 is in the bottom, and water delivering orifice 32 is on top, their water conservancy diversion direction unanimity all is counterclockwise, promptly no matter water flows into impeller box by water inlet 31 or water delivering orifice 32, and impeller all will be rotated counterclockwise, and counter 4 all can operate as normal.

Be illustrated in figure 4 as the A-A cut-open view of the impeller box of existing rotor water gauge, the water conservancy diversion direction of its water inlet 31 is counterclockwise, current are rotated counterclockwise impeller 2, and the water conservancy diversion direction of water delivering orifice 32 is clockwise, during by water delivering orifice 32 water inlets, impeller 2 turns clockwise, promptly by different mouth water inlets, the impeller 2 sense of rotation differences of water meter make the pointer sense of rotation of counter 4 also different, therefore produce upside-down mounting water meter, the phenomenon that counter falls back.

Claims (2)

1. rotary wind type anti-backflow water meter, form by housing (1), impeller (2), impeller box (3), counter (4), table lid (5), the water inlet (31) that it is characterized in that its impeller box (3) is consistent with the water conservancy diversion direction of water delivering orifice (32), is all clockwise or is all counterclockwise.

2. rotary wind type anti-backflow water meter according to claim 1 is characterized in that it has six water inlets (31) and four water delivering orifices (32), and the water conservancy diversion direction of its water inlet (31) and water delivering orifice (32) is counterclockwise.

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