Water meter of current rush prevention drive axle
A technology of transmission shaft and water meter, which is applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, measuring device, etc., can solve the problems of large impact force of the transmission shaft and the magnetic material of the transmission shaft is easily impacted and worn, and achieves simple assembly. The effect of convenience and simple structure to use
Active Publication Date: 2007-09-19
NINGBO DONGHAI INSTR WATERWAY
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Problems solved by technology
The transmission shaft of the metering structure in the water meter is exposed on the upper surface of the upper cover, so the impact force of the water flow on the transmission shaft is large, and the magnetic material on the transmission shaft is easily worn by impact
Method used
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] As shown in Figures 1 to 5, it is the first embodiment of the present invention;
[0026] As shown in Figure 1, the water meter is a rotary piston type coaxial water meter, which is available on the market. The water meter is characterized by fast water flow, and it includes: a hollow water meter main body 1 with a water inlet 11 and a water outlet 12. A flow path is formed between the water inlet 11 and the water outlet 12, the water inlet 11 and the water outlet 12 are vertical along the vertical axis of the water meter body 1, and both the water inlet 11 and the water outlet 12 are located at the lower part of the water meter body 1, When in use, the water inlet 11 and the water outlet 12 are threadedly connected to the water inlet pipe and the water outlet pipe in the pipeline through a special joint, wherein the joint and this conn...
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The present invention relate to a water meter with a transmission shaft that can prevent the flow impact. The water meter includes: a main body (1); a recorder (2) that is connected to the main body; a measuring structure (3) with a transmission shaft (31) in the main body (1); an upper cover (4) with a water inlet (41) on the upper cover of the measuring structure (3); said transmission shaft (31) is positioned through the upper cover (4) movably; the part of the transmission shaft (31) exposing the upper cover (4) induced with said measuring structure; said recorder (2) is separated from the transmission shaft (31) by a sealing board; a ring shaped block wall which extends downward is provided on the lower part of the sealing board (5) and the ring shaped block wall covers the transmission shaft (31) exposing the upper cover (4). As a result, the direct impact of the water flow to the transmission shaft exposing the upper cover can be avoided effectively because the ring shaped block wall covers the transmission shaft, and the water meter has the characteristics of a good effect of preventing the flow impact to the transmission shaft and a simple structure.
Description
technical field [0001] The invention relates to a water meter, in particular to a water meter capable of preventing current from impacting a transmission shaft. Background technique [0002] The structure of the existing magnetic transmission water meter generally includes a water meter main body with a water inlet and a water outlet, and a flow path is formed between the water inlet and the water outlet; a recorder is connected to the water meter main body to provide an indication of the amount of water flowing in the flow path between the water inlet and the outlet; a metering structure having a drive shaft positioned in the flow path within the meter body and responsive to water flowing therealong, the upper portion of the metering structure being covered with a The upper cover 4' of the water outlet is sealed, and the transmission shaft 31' is movably installed on the upper cover 4', and the transmission shaft 31' of the metering structure is exposed to the upper cover 4...
Claims
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IPC IPC(8): G01F11/04G01F1/075
Inventor 林志良
Owner NINGBO DONGHAI INSTR WATERWAY