Water meter coded disc structure

Abstract

The utility model belongs to the technical field of water meter metering structures, and particularly relates to a water meter code disc structure which comprises a code disc and a rotating disc, the rotating disc is driven by an impeller of a water meter to rotate, an induction ring area is arranged on the rotating disc, and a plurality of fan-shaped magnetic pieces with different areas are arranged in the induction ring area. A plurality of magnetic sensors corresponding to the induction ring area are assembled on one side, facing the magnetic sheet, of the coding disc. Compared with the prior art, the water flow metering device has the following beneficial effects that the mode that the magnetic sensor senses the magnetic sheets with different areas for metering is adopted, non-contact accurate measurement can be achieved, the accuracy of water flow reading is improved, and compared with photoelectric metering, energy consumption is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water meter measurement structures, and particularly relates to a water meter code disk structure. Background Art

[0002] Water meters are essential tools for measuring the amount of water flowing through pipes, playing an indispensable role in a variety of fields, including water resource management, household water metering, and industrial water monitoring. Currently, common water meters on the market primarily utilize two technical solutions to read the data on the encoder disk: direct contact physical connection and contactless photoelectric sensing.

[0003] The physical connection solution uses gears and other components to transmit the rotation of the water meter impeller to each meter pointer, which then calculates the metering data. This solution has a low structural cost, but the need for multiple sets of gear meshing results in significant power loss, which can slow the meter's metering progress, especially under low flow conditions.

[0004] The photoelectric sensing solution utilizes a pair of opposing photoelectric tubes (with the transmitter and receiver positioned opposite each other). When a mark or notch on the code disk passes between them, light is blocked or released, generating a change in electrical signal. By analyzing the changing pattern of these signals, the specific value displayed on the code disk can be decoded. Compared to physical connection solutions, this solution reduces power loss, achieves higher reading accuracy, and is relatively simple and easy to install and maintain, but it consumes more energy.

[0005] In summary, although existing photoelectric sensing technology and contact reading methods have met the needs of smart water meters for reading code disk values ​​to a certain extent, their respective limitations also limit their wider application prospects. Therefore, based on some of the above existing technologies, this application has made further designs and improvements. Utility Model Content

[0006] In order to solve the above technical problems, the present invention solves them through the following technical solutions.

[0007] A water meter code disk structure includes an encoder disk and a rotating disk. The rotating disk is driven by the water meter's impeller. The rotating disk is provided with an induction ring area, within which are positioned several sector-shaped magnetic sheets of varying sizes. Several magnetic sensors are mounted on the side of the encoder disk facing the magnetic sheets, corresponding to the induction ring areas. This design uses magnetic sensors to sense magnetic sheets of varying sizes for water metering, improving the accuracy of water flow readings and reducing energy consumption.

[0008] As a preferred embodiment of the water meter code disk structure described in this application, the rotating disk is provided with a positioning shaft, and the code disk is provided with an axial hole for assembling with the positioning shaft. This design ensures a stable connection and fixed relative position between the two, helping to improve the stability and reliability of the entire system.

[0009] As a preferred embodiment of the water meter code disk structure described in this application, the portion where the positioning shaft and the shaft hole assemble is truncated cone-shaped, and the shaft hole is adapted to the truncated cone. This design facilitates centering, and even slight angular deviations or misalignments can be automatically adjusted to the correct position via the inclined surface of the truncated cone.

[0010] As a preferred embodiment of the water meter code disk structure described in this application, the positioning shaft is equipped with an oil reservoir at the base of the frustum. This design facilitates the storage and even distribution of lubricants (such as lubricating oil), reduces friction between moving parts, and thus extends the service life of the device and maintains good working condition.

[0011] Compared with the existing technology, the present application has the following beneficial effects: the method of using magnetic sensors to sense magnetic sheets of different areas for measurement can achieve non-contact precise measurement, improve the accuracy of water flow readings, and greatly reduce energy consumption compared to photoelectric measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the code disk structure.

[0013] Figure 2 This is the structural explosion diagram of the code disk structure.

[0014] Figure 3 It is a cross-sectional view of the horse disk structure.

[0015] The following is a description of the symbols in the drawings of the specification:

[0016] 10. Encoder disc; 11. Magnetic sensor; 12. Shaft hole;

[0017] 20. Rotating disk; 21. Magnetic sheet; 22. Positioning shaft; 23. Oil storage tank. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0019] In the following embodiments, the same or similar numbers throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and therefore cannot be understood as limiting the present invention. In addition, the terms: first, second, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present invention, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Reference Figures 1 to 3 A water meter code disk structure includes a code disk 10 and a rotating disk 20. The rotating disk 20 is driven to rotate by the water meter's impeller. The rotating disk 20 is provided with an induction ring area, and a plurality of sector-shaped magnetic sheets 21 of different areas are provided within the induction ring area. The side of the code disk 10 facing the magnetic sheets 21 is equipped with a plurality of magnetic sensors 11 corresponding to the induction ring area. This design uses the magnetic sensors 11 to sense the magnetic sheets 21 of different areas for measurement, which can achieve non-contact and precise measurement, improve the accuracy of water flow readings, and greatly reduce energy consumption compared to photoelectric metering.

[0022] To improve the metering accuracy between the encoder disk 10 and the rotating disk 20, a positioning shaft 22 is provided on the rotating disk 20, and an axial hole 12 is provided on the encoder disk 10 to mate with the positioning shaft 22. This design ensures a stable connection and fixed relative position between the two, helping to improve the stability and reliability of the entire system. The portion where the positioning shaft 22 mates with the axial hole 12 is truncated cone-shaped, and the axial hole 12 is adapted to the truncated cone shape. This design facilitates centering, and even slight angular deviations or misalignments can be automatically adjusted to the correct position through the inclined surface of the truncated cone.

[0023] Furthermore, the positioning shaft 22 is provided with an oil storage tank 23 at the root of the truncated cone. This design is conducive to the storage and uniform distribution of lubricants (such as lubricating oil), reducing friction between moving parts, thereby extending the service life of the equipment and maintaining good working condition.

[0024] To ensure the water meter code disk structure has good performance and a long service life, the surfaces of the rotating disk 20 and the code disk 10 undergo precision machining, such as surface polishing and edge chamfering, to ensure a smooth and burr-free surface of the final product, reduce unnecessary wear, and improve the overall aesthetics. At the same time, all contact surfaces should be properly treated with rust prevention, especially for components operating in humid environments, to prevent functional failures caused by rust.

[0025] Furthermore, considering the application requirements in extreme weather conditions, such as high and low temperatures, key components of the water meter code disk structure are manufactured from highly weather-resistant materials. For example, the magnetic plate 21 is made of a permanent magnet material with a high Curie temperature, ensuring a stable magnetic field strength even at high temperatures. The code disk 10 and rotating disk 20 themselves are preferably made of engineering plastics or special alloys that have excellent mechanical properties and can operate normally over a wide temperature range. This not only enhances the overall device's resistance to natural factors but also extends its service life.

[0026] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention is based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field fall within the protection scope of the present invention.

Claims

1. A water meter code disk structure, comprising a code disk (10) and a rotating disk (20), wherein the rotating disk (20) is driven to rotate by an impeller of the water meter, characterized in that: The rotating disk (20) is provided with an induction ring area, and a plurality of sector-shaped magnetic sheets (21) of different areas are provided in the induction ring area; and a plurality of magnetic sensors (11) are mounted on a side of the encoding disk (10) facing the magnetic sheets (21) corresponding to the induction ring area.

2. A water meter code disk structure according to claim 1, characterized in that: The rotating disk (20) is provided with a positioning shaft (22), and the encoding disk (10) is provided with a shaft hole (12) assembled with the positioning shaft (22).

3. A water meter code disk structure according to claim 2, characterized in that: The portion where the positioning shaft (22) and the shaft hole (12) are assembled is in a truncated cone shape, and the shaft hole (12) is adapted to the truncated cone shape.

4. A water meter code disk structure according to claim 3, characterized in that: The positioning shaft (22) is provided with an oil storage tank (23) at the root of the truncated cone shape.

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