CN204286504U - A kind of water meter without Magnetic testi electronic measurement - Google Patents

Abstract

The utility model discloses a water meter for non-magnetic detection electronic metering, which comprises a water meter body, an impeller, and a water meter casing above the water meter body. The blades are arranged symmetrically along the axis of the rotating shaft of the impeller. The water meter body is equipped with a connecting shaft and a PLC controller. The connecting shaft is equipped with a non-magnetic sensor including an inductive element. The non-magnetic sensor is close to the rotating shaft of the impeller. The inductive element is used It is used to collect the position signal of the non-magnetic induction sheet and send the position signal to the PLC controller. The PLC controller is used to convert the above position signal into the flow rate of the fluid and transmit it to the display screen installed on the water meter shell. The non-magnetic detection electronic metering water meter of the utility model has no magnetic interference problem; at the same time, the base meter has better initial flow rate and range ratio; only one detection probe can identify the direction of water flow and reduce the detection power consumption.

Description

A water meter for non-magnetic detection electronic measurement

technical field

The utility model relates to the technical field of measuring instruments, in particular to a non-magnetic detection electronic metering water meter.

Background technique

As a measuring instrument, the water meter mostly measures the cumulative flow of water. It is generally divided into two types: volumetric water meter and speed water meter. It uses the direct mechanical movement process of the movable wall volume measurement chamber or the effect of the water flow velocity on the wing wheel to calculate the flow volume of the water flowing through the tap water pipe. Most of the traditional water meters are magnetic transmission mechanical measurement or magnetic detection electronic measurement: the current method is to add a small magnet to the pointer of the original old-fashioned water meter, and add a magnetic sensor and an external acquisition circuit board inside the water meter The sensor is connected to the external acquisition circuit board through wires, and the purpose of metering water consumption is achieved by detecting the number of turns of the pointer. However, the signal transmission is through the magnetic field, so there may be interference by the external magnetic field. At this time, the sensor will detect a constant magnetic signal, and the sensor cannot count. At the same time, there are some disadvantages: 1. There are pulse omissions caused by demagnetization; 2. Magnetic materials have a demagnetization phenomenon. It is necessary to ensure that the magnetism is not too strong, and to prevent demagnetization caused by demagnetization after a long time, which has certain difficulties. 3. It is easily affected by external magnetic interference; 4. The magnet installed on the impeller is easy to absorb the sundries in the tap water and affect the measurement.

At present, the semicircular metal foil in the existing water meter is located on one side of the impeller, which affects its center of gravity and the stability of measurement, and also affects the performance of the initial flow rate. When the impeller rotates once, there is only one pulse signal, and the measurement resolution is not high. At the same time, it is impossible to use one detection probe to discriminate the direction of water flow. Two detection probes and a single-chip integrated detection circuit are required. In this way, multiple detection probes are required to increase power consumption and a specific single-chip cooperative sensor detection is required.

Contents of the invention

The utility model aims at the deficiencies of the prior art, and provides a non-magnetic detection electronic metering water meter, which realizes the relative independence of the counting part and the base meter part; provides reliable waterproof guarantee for the electronic device; without Magnetic interference problem; at the same time, the base meter has a better initial flow rate and range ratio; the two induction elements make the gravity division on the impeller more uniform, which improves the stability of measurement and improves the initial flow rate. Performance; there are two pulse signals for one revolution of the impeller, which improves the measurement resolution by 50%; the direction of the water flow can be identified through only one detection probe and the detection power consumption is reduced, without the need for a single-chip cooperating sensor detection, directly with the level pulse signal output.

In order to solve the above technical problems, the utility model is solved by the following technical solutions: a water meter for non-magnetic detection electronic metering, including a water meter body, an impeller, a water meter casing on the water meter body, and a water meter body on one side of the water meter body. The water inlet and the water outlet on the other side of the water meter body, two non-magnetic induction sheets of different sizes are arranged on the edge of the rotating shaft of the impeller, and the non-magnetic induction sheets are symmetrical along the axis of the rotating shaft of the impeller Setting, the water meter body is provided with a connecting shaft and a PLC controller, the connecting shaft is provided with a non-magnetic sensor including an inductive element, the non-magnetic sensor is close to the rotating shaft of the impeller, and the non-magnetic The sensor is on the same straight line as the axis of the impeller's rotating shaft, and at the same time, the non-magnetic sensing sheet can only be located in the sensing area of the sensing element, and the sensing element is used to collect the position signal, and send the position signal to the PLC controller, and the PLC controller is used to convert the above position signal into the flow rate of the fluid and transmit it to the display screen installed on the casing of the water meter. Beneficial effects: the water meter realizes the relative independence of the counting part and the base meter part; it provides reliable waterproof protection for the electronic device; there is no magnetic interference problem; at the same time, the base meter has better starting flow and range ratio; the two inductive elements make it The gravity division on the impeller is more uniform, which improves the stability of the measurement and the performance of the initial flow; there are two pulse signals for one revolution of the impeller, which improves the measurement resolution by 50%; it can only pass through one detection probe The direction of the water flow can be identified and the power consumption of the detection is reduced, without the need for a single-chip cooperative sensor detection, and the level pulse signal is directly output.

In the above technical solution, preferably, a wireless communication module is provided in the water meter casing, and the wireless communication module is used to send the flow of the fluid to a remote server through a wireless network, and a water inlet valve is provided at the water inlet, so that The upper end of the water inlet valve is provided with a solenoid valve, the PLC controller controls the switch of the solenoid valve, and the wireless communication module signal is connected to the PLC controller. Beneficial effects: the electromagnetic valve can be remotely controlled by setting the solenoid valve, which makes the management of the water meter more convenient and improves the user experience.

In the above technical solution, preferably, a battery seat is provided at the lower end of the water inlet valve, and a lithium battery is buckled in the battery seat.

Compared with the prior art, the utility model has the following beneficial effects: the non-magnetic detection electronic measurement water meter of the utility model realizes the relative independence of the counting part and the base meter part; provides reliable waterproof guarantee for the electronic device; has no magnetic interference At the same time, the base meter has a better starting flow rate and range ratio; only one detection probe can identify the direction of the water flow and reduce the detection power consumption, without the need for a single-chip cooperative sensor detection, directly output as a level pulse signal.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the structure inside the water meter body of the embodiment of the utility model.

Fig. 3 is a schematic top view structural diagram of the water meter housing of the embodiment of the present invention.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: Referring to Figures 1-3, a water meter for non-magnetic detection electronic metering, including a water meter body 1, an impeller 2, and a water meter on the water meter body 1 Housing 3, the water inlet on one side of the water meter body 1 and the water outlet on the other side of the water meter body 1, two non-magnetic induction sheets 4 of different sizes are arranged on the edge of the rotating shaft of the impeller 2, so that The non-magnetic induction sheet 4 is arranged symmetrically along the axis of the rotating shaft of the impeller, the water meter body 1 is provided with a connecting shaft 5 and a PLC controller 6, and the connecting shaft 5 is provided with a non-magnetic sensor including an inductive element 7. The non-magnetic sensor 7 is close to the rotating shaft of the impeller 2, the non-magnetic sensor 7 is on the same straight line as the axis of the rotating shaft of the impeller 2, and at the same time, the non-magnetic induction sheet 4 Can only be located in the sensing region of the sensing element, the sensing element is used to collect the position signal of the non-magnetic sensing sheet 4, and send the position signal to the PLC controller 6, and the PLC controller 6 uses The above-mentioned position signal is converted into the flow rate of the fluid and transmitted to the display screen installed on the water meter housing 3 .

The water meter casing 3 is provided with a wireless communication module 10, and the wireless communication module 10 is used to send the flow of the fluid to a remote server through a wireless network. The water inlet is provided with a water inlet valve 8, and the water inlet valve The upper end of 8 is provided with a solenoid valve 9, the PLC controller 6 controls the switch of the solenoid valve 9, and the wireless communication module 10 is connected to the PLC controller 6 with signals.

The lower end of the water inlet valve 8 is provided with a battery seat 11, and the battery seat 11 is buckled and connected to a lithium battery.

When in use, when fluid flows through the meter body, the fluid will drive the impeller 2 to rotate, and the non-magnetic induction piece 4 on the edge of the impeller 2's rotating shaft will also rotate accordingly. At a certain moment, the middle inductive element in the non-magnetic sensor 7 A position signal of the larger non-magnetic induction sheet 4 is collected at the moment, and at the next moment, the sensing element collects the next position signal of the smaller non-magnetic induction sheet 4, and the two position signals before and after will be sent to the PLC controller 6. After the calculation by the PLC controller 6, the position signal is converted into the number of rotations of the impeller 2, and then converted into the flow rate of the fluid, and then the PLC controller 6 sends the above-mentioned fluid flow rate to the display screen for the user to check. On the other hand, the flow of the fluid is also sent to the wireless communication module 10 in the main board, and the flow of the fluid is transmitted to the remote server by the wireless communication module 7; At this time, the PLC controller 6 will also control the closing and opening of the water inlet valve 8 through the solenoid valve 9.

Compared with the prior art, the utility model has the following beneficial effects: the non-magnetic detection electronic measurement water meter of the utility model realizes the relative independence of the counting part and the base meter part; provides reliable waterproof guarantee for the electronic device; has no magnetic interference At the same time, the base meter has a better starting flow rate and range ratio; only one detection probe can identify the direction of the water flow and reduce the detection power consumption, without the need for a single-chip cooperative sensor detection, directly output as a level pulse signal.

Claims (3)

1. the water meter without Magnetic testi electronic measurement, comprise water meter body (1), impeller (2), watermeter shell (3) on described water meter body (1), the water inlet of described water meter body (1) side and the water delivering orifice of described water meter body (1) opposite side, it is characterized in that: the edge of the rotation axis of described impeller (2) be provided with that two panels differs in size without magnetic inductive film (4), describedly to arrange without the axisymmetrical of magnetic inductive film (4) along the rotation axis of described impeller, coupling shaft (5) and PLC (6) is provided with in described water meter body (1), described coupling shaft (5) is provided with the non-magnetic sensor (7) comprising a sensing element, described non-magnetic sensor (7) is close to the rotation axis of described impeller (2), the axial line of the rotation axis of described non-magnetic sensor (7) and described impeller (2) on the same line, and the induction region of described sensing element described in synchronization, can only be positioned at without magnetic inductive film (4), described sensing element is for gathering the described position signalling without magnetic inductive film (4), and this position signalling is sent to described PLC (6), described PLC (6) is for being converted into the traffic transport of fluid to the display screen be arranged on described watermeter shell (3) by above-mentioned position signalling.

2. a kind of water meter without Magnetic testi electronic measurement as claimed in claim 1, it is characterized in that: in described watermeter shell (3), be provided with wireless communication module (10), described wireless communication module (10) is for sending to remote server by wireless network by the flow of fluid, described water inlet is provided with water intaking valve (8), the upper end of described water intaking valve (8) is provided with solenoid valve (9), described PLC (6) controls the switch of described solenoid valve (9), and described wireless communication module (10) signal connects described PLC (6).

3. a kind of water meter without Magnetic testi electronic measurement as claimed in claim 2, is characterized in that: described water intaking valve (8) lower end is provided with battery tray (11), and the interior buckle of described battery tray (11) connects lithium battery.