KR820002536Y1 - Water meter - Google Patents

Abstract

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Description

Reverse rotation prevention device of single-deck water meter

1 is a partial longitudinal sectional view of the present invention.

2 is an enlarged cross-sectional view showing a state in which the lower part of the blade shaft is inserted into the bearing hole.

3 is a cross-sectional view of the singular state.

4 is a cross-sectional view of the water supply state.

The present invention relates to a device for preventing the inversion phenomenon of the coefficient display as the blade wheel is reversed due to the reverse flow of the water supply in the single-acting water meter.

Conventionally, as a countermeasure device for reverse rotation and idling of the water meter, a valve chamber formed with a water outlet and a ventilation hole is formed on the water inlet side of the gas, and a partition wall having a hole in the center is installed on the upper portion thereof to communicate with the upper portion of the gas and the ventilation hole. The hollow chamber is formed, and the valve chamber is formed by inserting a float having a vent pipe on the upper surface (Utility Model Publication No. 241 Publication No. 71-1072), and a bottom plate of the gas is detachably formed and a through hole is formed. A vent pipe is installed on the upper surface, and an opening is formed in the middle of the side circumferential wall. An annular float valve, which is integrally mounted with two annular floating tubes made of elastic material, is provided on the outside of the inner shell body. It is made by laying out the air tub of elastic material by arranging the annular inlet at the port (Utility Model Publication No. 245 No. 71-1376), but these are owned by the applicant As a result of the implementation, it was found out that it is not suitable for the structural characteristics of the single-deck type water meter, and the present invention is particularly suitable for installation in the structure of the single-dip type water meter, and its operation function is sensitively described. .

Interstitial support in the outlet pipe (2) which is spoken to the water outlet (1b) of the single-stage water meter formed in communication with the water inlet (1a) and the water outlet (1b) facing the wing compartment (1c) of the lower part of the outer shell (1) (3) is inserted and inserted into the center hole of the interval support (3) so that the variable body (4) is located in the water outlet (1b) in the coalescing with the spring (5) in the The protrusion 4b is protruded at the center of the tip so that the protrusion 4b is positioned within the end of the vane 6, and the edge plate 7 and the packing 8 are inserted and fixed at the tip of the deformable body 4.

Then, on the lower main surface of the blade shaft 6a, the helical groove line 6b is cut in the opposite direction to the rotor blade rotation direction so that the dirt inserted into the shaft hole in the center of the inner bottom surface of the outer shell 1 into which the blade shaft 6a is inserted is bladed. As it exits during the rotation of (6), dirt is not accumulated in the bearing hole.

The present invention configured as described above has the water outlet (1b) open while the deformed body (4) is pushed out by the water pressure flowing out of the water inlet (1a) to the water outlet (1b) through the mixing chamber (1c) Since the projection 4b at the tip of the deformed body 4 is out of the end of the blade wheel 6, the rotor blade 6 is rotated by the flow rate due to the water supply, so that the rotational force is transmitted to the counter and counted, and at the water inlet 1a, When the number of stages is eliminated, there is no means at the tip of the deformable body 4, so that the deformable body 4 is pushed by the spring force of the spring 5 while the packing 8 blocks the water outlet 1b and at the same time Since the projection 4b is located in the end of the vane 6, the end of the vane 6 is caught by the projection 4b to prevent rotation, thereby preventing reverse rotation of the vane 6.

Therefore, the present invention can be easily installed on the single-stage water meter to prevent the reverse rotation phenomenon of the water meter, which is the most vulnerable in the single-stage water meter, and is formed by the spiral groove line 6b on the main surface of the lower part of the axle 6a. Since dirt does not flow into the ball hole, there is an effect that the rotor 6 can be used for a long time in a smooth state.

Claims (1)

As shown in the drawing, the interval supporting member 3 is inserted into the outlet pipe 2 of the single-acting water meter so that the variable body 4 is located at the water inlet and outlet 1b. To prevent the reverse rotation of the short-acting water meter by protruding the projection 4b at the center of the front end of the variant 4 and placing it at the end of the vane 6 and cutting the spiral groove line 6b on the lower main surface of the vane 6a. Device.