High-precision flow and metering conversion device

Abstract

The present invention discloses a high-precision flow and metering conversion device, and relates to the technical field of water metering devices. The present invention arranges an infrared emitting device, a reflective sheet, and at least three infrared receiving devices on the water meter. The reflective sheet is connected to the impeller assembly of the water meter in a transmission manner. When water passes through the water meter, the reflective sheet will be driven to rotate. The reflective sheet includes a reflection area and an absorption area. The infrared reflecting device emits infrared rays in the direction of the reflective sheet, and the reflected infrared rays are received by the infrared receiving device. When in use, the infrared receiving device under the absorption area cannot receive the infrared signal, thereby measuring the water consumption, measuring the water flow rate by the signal jump speed of the infrared receiving device, and detecting the direction of the water flow by the signal jump sequence of the infrared receiving device. The present invention has a simple structure and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of water meter measuring devices, in particular to a high-precision flow and metering conversion device. Background Art

[0002] A water meter is an instrument that measures water flow, most often measuring the cumulative flow of water. Common water meters in the prior art are similar to the one provided by Patent No. CN201837417U, which includes a base meter, an impeller shaft assembly disposed therein, a magnetic ring disposed at one end of the impeller shaft assembly extending beyond the base meter housing, a housing disposed on the base meter, a sensor assembly and a display assembly disposed therein, the data output end of the sensor assembly being connected to the data input end of the display assembly for data transmission, and the magnetic ring within the sensor assembly being magnetically coupled to the magnetic ring of the impeller shaft assembly. This type of water meter can measure water consumption. However, this type of water meter cannot detect the water flow velocity or the forward and reverse rotation state of the pointer.

[0003] Patent number CN109489758A, a prior art patent, provides a water meter counter in the field of mechanical technology. It addresses the problems of low installation efficiency, poor theft resistance, and poor safety of existing water meter counters. The water meter counter comprises a mounting base, a movement, a pressure ring, and a meter cover. The meter cover is mounted outside the movement. The mounting base has a mounting platform. The pressure ring is open and mounted outside the mounting platform and is axially positioned and circumferentially rotatable relative to the mounting platform. The movement is located above the mounting platform. A clamping ring is provided between the pressure ring and the movement, which drives the movement to rotate synchronously when the pressure ring rotates. The inner wall of the meter cover also has several circumferentially distributed clips. The outer wall of the pressure ring has several corresponding clip slots. The meter cover is located outside the pressure ring, and the clips can be snapped into the corresponding clip slots. This provides high theft resistance and safety. Furthermore, there is no direct connection between the movement and the meter cover, which facilitates wiring during installation and improves installation efficiency.

[0004] However, this type of water meter counter cannot detect the forward and reverse rotation of the impeller assembly. Summary of the Invention

[0005] The purpose of this new use is to provide a high-precision flow and metering conversion device to solve the technical problem in the prior art that the water meter counter cannot detect water meter reversal.

[0006] A high-precision flow and metering conversion device includes a water meter body and an electronic meter. The electronic meter is arranged on the water meter body. The electronic meter consists of an infrared emitting device, an infrared receiving device and a reflective sheet. There are at least three infrared receiving devices. The infrared emitting device is arranged on a circuit board in the water meter body. The three infrared receiving devices are evenly arranged around the infrared emitting device. The reflective sheet is arranged at the display lens of the water meter body. The reflective sheet is a circular sheet. The center of the reflective sheet is directly above the infrared emitting device. At the same time, the three infrared receiving devices are within the coverage range of the reflective sheet. The reflective sheet is transmission-connected to the impeller assembly in the water meter body. When the water source flows through the water meter, the impeller assembly is driven to rotate, and the reflective sheet is driven to rotate through the impeller assembly. The reflective sheet is composed of a reflection area and an absorption area. The reflection area can simultaneously cover two infrared receiving devices during rotation.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] Firstly, the present invention detects the water flow through an electronic meter, wherein the motor meter includes an infrared emitting device, an infrared receiving device and a reflective sheet. The infrared emitting device emits infrared rays to the reflective sheet, and the reflective sheet is divided into a reflection area and an absorption area. When the infrared rays are irradiated to the reflection area, the infrared rays are reflected to the infrared receiving device at the bottom thereof so that the infrared receiving device can receive the infrared signal. When the infrared rays are irradiated to the absorption area, the infrared rays are absorbed by it, so that the infrared receiving device directly below the absorption area cannot receive the infrared signal. When water flows through the water meter body, the infrared ray The impeller assembly rotates, driving the reflective sheet to rotate through the impeller assembly. When all the infrared receiving devices fail to receive an infrared signal once, the reflective sheet completes one rotation, which means that the water consumption reaches one unit. The water consumption is calculated based on this. The flow rate of the water consumption is detected by detecting the signal reception speed of the three infrared receiving devices. The rotation direction of the impeller assembly is determined by detecting the signal reception order of the three infrared receiving devices, thereby determining the forward and reverse rotation of the water meter. This effectively solves the technical problem in the prior art that the water meter counter cannot detect the reversal of the water meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0011] Figure 2 Schematic diagram of the structure of the reflector in the present invention;

[0012] Figure 3 This is a schematic diagram of the layout of the infrared emitting device and the infrared receiving device in the present invention;

[0013] Reference numerals: water meter body 1 , electronic meter 2 , infrared emitting device 21 , infrared receiving device 22 , reflecting sheet 23 , reflecting area 231 , absorbing area 232 . DETAILED DESCRIPTION

[0014] The following will be combined with the Figure 1-3 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, but not all of the embodiments.

[0015] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0016] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] A high-precision flow and metering conversion device includes a water meter body 1 and an electronic meter 2. The electronic meter 2 is arranged on the water meter body 1. The electronic meter 2 consists of an infrared emitting device 21, an infrared receiving device 22 and a reflective sheet 23. There are at least three infrared receiving devices 22. The infrared emitting device 21 is arranged on a circuit board in the water meter body 1. The three infrared receiving devices 22 are evenly arranged around the infrared emitting device 21. The reflective sheet 23 is arranged at the display lens of the water meter body 1. The reflective sheet 23 is a circular sheet, the center of which is directly above the infrared emitting device 21. At the same time, the three infrared receiving devices 22 are within the coverage range of the reflective sheet 23. The reflective sheet 23 is transmission-connected to the impeller assembly in the water meter body 1. When the water source flows through the water meter, the impeller assembly is driven to rotate, and the reflective sheet 23 is driven to rotate by the impeller assembly. The reflective sheet 23 is composed of a reflection area 231 and an absorption area 232. The reflection area 231 can simultaneously cover two infrared receiving devices 22 during rotation.

[0020] The present invention is installed in a water meter body 1. When water flows through the water meter body 1, it drives the impeller assembly to rotate, and the impeller assembly drives the reflective sheet 23 to rotate. The infrared emitting device 21 emits infrared rays to the reflective sheet 23. When the infrared rays hit the reflective area 231, they are reflected and then received by the infrared receiving device 22 arranged below the reflective area 231. When the infrared rays hit the absorption area 232, they are absorbed by the absorption area 232, so that the infrared receiving device 22 directly below the absorption area 232 cannot receive the infrared signal. The rotation of the reflective sheet 23 enables multiple infrared receiving devices 22 to receive infrared signals in sequence. When all infrared receiving devices 22 fail to receive an infrared signal once, the reflective sheet 23 completes one rotation, indicating that the water consumption has reached one unit. The water consumption is calculated based on this. The flow rate of the water consumption is detected by detecting the signal reception speed of the three infrared receiving devices 22. The rotation direction of the impeller assembly is determined by detecting the signal reception order of the three infrared receiving devices 22, thereby determining the forward and reverse rotation of the water meter.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-precision flow and metering conversion device, comprising a water meter body (1), characterized in that: The water meter also comprises an electronic meter (2), the electronic meter (2) being arranged on the water meter body (1), the electronic meter (2) being composed of an infrared emitting device (21), an infrared receiving device (22) and a reflective sheet (23), the infrared receiving devices (22) being at least three, the infrared emitting device (21) being arranged on a circuit board in the water meter body (1), the three infrared receiving devices (22) being evenly arranged around the infrared emitting device (21), and the reflective sheet (23) being arranged on the water meter body (1). At the display lens, the reflective sheet (23) is a circular sheet, the center of the reflective sheet (23) is located directly above the infrared emitting device (21), and the three infrared receiving devices (22) are located within the coverage of the reflective sheet (23). The reflective sheet (23) is drivingly connected to the impeller assembly in the water meter body (1), and the reflective sheet (23) is composed of a reflection area (231) and an absorption area (232). The reflection area (231) can cover two infrared receiving devices (22) simultaneously during rotation. When water flows through the water meter body When the body (1) is rotated, the impeller assembly is driven to rotate, and the impeller assembly drives the reflective sheet (23) to rotate, and the infrared emitting device (21) emits infrared rays to the reflective sheet (23), and when the infrared rays are irradiated to the reflective area (231), they are reflected, and then the infrared ray signals are received by the infrared receiving device (22) arranged below the reflective area (231), and when the infrared rays are irradiated to the absorption area (232), the infrared rays are absorbed by the absorption area (232), so that the infrared ray receiving device (22) located directly below the absorption area (232) cannot receive the infrared ray signals, and the infrared ray receiving device (22) located directly below the absorption area (232) cannot receive the infrared ray signals. The rotation of the reflective sheet (23) causes the plurality of infrared receiving devices (22) to receive infrared signals in sequence. When all the infrared receiving devices (22) fail to receive infrared signals once, the reflective sheet (23) completes one rotation, which represents that the water consumption reaches one unit. The water consumption is calculated based on this. The flow rate of the water consumption is detected by detecting the signal receiving speed of the three infrared receiving devices (22). The rotation direction of the impeller assembly is determined by detecting the signal receiving sequence of the three infrared receiving devices (22), thereby determining the forward and reverse rotation of the water meter.

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