An internet of things water supply flow meter

Abstract

The utility model provides a kind of water supply flowmeter of internet of things, including shell, water pipe is inserted in the middle part of shell, shell is set through and is covered with first cover plate and second cover plate respectively, the inside of shell is provided with two coils, the inner wall of water pipe is provided with lining, electrode is provided on the lining, contact is provided on water pipe, one end of contact and the back surface of electrode are electrically connected, and the other end extends out water pipe radially.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and in particular to an Internet of Things (IoT) water supply flow meter. Background Technology

[0002] A flow meter is an instrument that indicates the measured flow rate and / or the total amount of fluid within a selected time interval. Simply put, it's an instrument used to measure the flow rate of fluid in pipes or open channels. Before tap water enters a household, a water meter, i.e., a flow meter, needs to be installed to measure the amount of water used for billing.

[0003] Traditional water meters are impeller-driven mechanical meters, which suffer from large measurement errors and require on-site meter readings. Existing water meters generally incorporate wireless communication capabilities, eliminating the need for on-site readings. Furthermore, the measurement method has been changed to electromagnetic, improving accuracy. The overall structure of this water meter is an inverted "T" shape, meaning the measuring section is horizontal, through which water flows. The measuring section contains coils and electrodes, while a control module is radially connected to it. This module calculates the potential difference between the electrodes, converts it into water flow velocity, and obtains the water supply volume through time integration. However, this type of water meter is relatively large, posing challenges for installation and transportation. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses an IoT water flow meter, comprising a housing with a water pipe inserted through its center. The housing extends from front to back and is covered by a first cover plate and a second cover plate. Two coils are disposed inside the housing. The inner wall of the water pipe is lined with electrodes, and contacts are located on the water pipe. One end of each contact is electrically connected to the back of an electrode, and the other end extends radially out of the water pipe. The coils generate a magnetic field; the flowing water cuts the magnetic field lines, generating a voltage between the two electrodes. The water flow rate is obtained by calculating the voltage. This testing principle is that of an electromagnetic flow meter. Compared to traditional electromagnetic flow meters, this utility model has the advantage of smaller size.

[0005] Preferably, a support plate is fixedly connected to both the first and second cover plates, and a semi-circular notch is provided in the middle of the support plate to be secured to the water pipe. The upper and lower parts of the support plate are provided with slots, and limit blocks are provided on both sides of the coil, the limit blocks engaging in the slots. The design of the support plate, slots, and other structures ensures that the coil can be stably fixed inside the outer casing. It is worth noting that a tubular sleeve is provided on the outside of the coil, while the winding is located inside the sleeve.

[0006] Preferably, sealing rings are provided between the first cover plate and the outer shell, and between the second cover plate and the outer shell. The sealing rings ensure the airtightness between the first cover plate, the second cover plate, and the outer shell.

[0007] Preferably, a connecting post is fixedly connected to the second cover plate, and the other end of the connecting post abuts against the first cover plate. The first cover plate, the second cover plate, and the connecting post are provided with slots for bolts and nuts to be inserted. The nut is placed into a pre-set groove on the upper part of the first outer shell, and then the bolt passes through the second cover plate and the connecting post and is threadedly connected to the nut, thereby fixing the first cover plate and the second cover plate to the outer shell.

[0008] Preferably, a control module is disposed inside the housing, and an e-ink screen is disposed at the upper end of the control module, with the screen appearing from the upper end of the housing. The coil and contacts are electrically connected to the control module. The control module amplifies the voltage between the two electrodes and converts it into the flow rate of the water. In addition, a wireless communication module is provided for remote data transmission.

[0009] Preferably, a battery is housed inside the casing, and the battery is electrically connected to the control module. The electronic components inside the battery casing are powered.

[0010] Preferably, the upper end of the housing is provided with a wiring port. This is used to connect cables for power supply and communication, avoiding problems such as inability to communicate or charge when installed in an environment without signal.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. It is equipped with an outer casing, and the water pipe runs through the middle of the rectangular casing. The coil, control module, battery, etc. are placed inside the casing, which helps to reduce the size of the flow meter, making it miniaturized and convenient for transportation and installation.

[0013] 2. The outer casing is designed to extend through the front and back, and is sealed with a first cover plate and a second cover plate, which facilitates the installation of coils, control modules, batteries and other wiring operations.

[0014] 3. It is equipped with an e-ink screen, which helps reduce the power consumption of the flow meter's display. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is an exploded view of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of one end of the present invention;

[0018] Figure 4This is a cross-sectional view of the present invention.

[0019] List of reference numerals in the attached diagram:

[0020] 1. First cover plate; 2. Outer shell; 3. Ink screen; 4. Water pipe; 5. Wiring port; 6. Sealing ring; 7. Second cover plate; 8. Connecting post; 9. Support plate; 10. Slot; 11. Control module; 12. Contact; 13. Limiting block; 14. Coil; 15. Electrode; 16. Liner; 17. Battery. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figures 1 to 4 As shown, an IoT water flow meter includes a housing 2, which is a cuboid structure made of plastic. A water pipe 4 is inserted through the middle of the housing 2. The water pipe 4 is made of a non-magnetic material, preferably stainless steel. The housing 2 is continuous from front to back. The housing 2 and the water pipe 4 are integrally injection molded and covered by a first cover plate 1 and a second cover plate 7, respectively. Two coils 14 are installed inside the housing 2. The coils 14 are energized and generate a magnetic field. The inner wall of the water pipe 4 is provided with an inner lining 16 for insulation to prevent interference from the water pipe 4. Electrodes 15 are provided on the inner lining 16. When water passes through the water pipe 4, it cuts the magnetic field and generates a potential difference between the two electrodes 15. Contacts 12 are provided on the water pipe 4. One end of the contact 12 is electrically connected to the back of the electrode 15, and the other end extends radially out of the water pipe 4. The voltage between the two electrodes 15 is obtained through the contact 12.

[0023] Furthermore, the outer shell 2 and the inner liner 16 are made of the same material. During the injection molding process, the outer shell 2, water pipe 4, contact 12 and inner liner 16 are all integrally molded. First, the contact 12 and water pipe 4 are placed in the injection mold, and then plastic is injected into the mold to form the outer shell 2. Inside the outer shell 2, the side wall of the water pipe 4 is covered with a layer of plastic. In addition, during the injection molding process, the plastic enters the interior through the pre-set through hole on the side wall of the water pipe 4 and forms the inner liner 16 with the mold. After the injection molding cools, the mold is demolded to obtain the integrally molded outer shell 2, water pipe 4, contact 12 and inner liner 16.

[0024] Support plates 9 are fixedly connected to both the first cover plate 1 and the second cover plate 7. A semi-circular notch is provided in the middle of the support plate 9, which is then secured to the water pipe 4. Slots 10 are provided at the upper and lower parts of the support plate 9. Limiting blocks 13 are provided on both sides of the coil 14, and these blocks 13 engage with the slots 10. First, the first cover plate 1 or the second cover plate 7 is pre-installed on the outer casing 2. Then, the two coils 14 are sequentially secured in the slots 10. Finally, the remaining first cover plate 1 or the second cover plate 7 is closed, thus securing the coils 14. Note that the lower part of the support plate 9 has a notch for wiring.

[0025] A sealing ring 6 is provided between the first cover plate 1 and the outer shell 2, and between the second cover plate 7 and the outer shell 2. The sealing ring 6 is provided to achieve a seal between the first cover plate 1, the second cover plate 7 and the outer shell 2.

[0026] A connecting post 8 is fixedly connected to the second cover plate 7. The connecting post 8 is hollow, and the other end of the connecting post 8 abuts against the first cover plate 1. The first cover plate 1, the second cover plate 7, and the connecting post 8 are provided with slots for inserting bolts and nuts. Specifically, the first cover plate 1 is provided with a regular hexagonal groove that can accommodate the nut, while the second cover plate 1 is provided with a circular groove. One end of the bolt passes through the connecting post 8 and is threadedly connected to the nut, thus fixing the first cover plate 1 and the second cover plate 2 to the outer shell 2.

[0027] The housing 2 is equipped with a control module 11, which is used for data calculation and data transmission. The upper end of the control module 11 is equipped with an e-ink screen 3, which is used to display relevant information and can reduce the energy consumption of the display. The e-ink screen 3 is displayed from the upper end of the housing 2. The coil 14 and the contact 12 are electrically connected to the control module 11.

[0028] The housing 2 has a battery 17 installed inside, and the battery 17 is electrically connected to the control module 11. The battery 17 supplies power to the electronic components inside the housing 2.

[0029] The upper end of the housing 2 is provided with a wiring port 5. Since the coil 14 needs to be kept energized, it generally requires an external power supply cable due to its relatively high power consumption. The wiring port 5 is used to connect the external cable, thereby providing a stable power supply for the flow meter. In addition, the cable can also be used for data transmission.

[0030] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. An Internet of Things water service flow meter, characterized by: Includes an outer shell (2), a water pipe (4) is inserted through the middle of the outer shell (2), the outer shell (2) is arranged through the front and back, and a first cover plate (1) and a second cover plate (7) are respectively covered. Two coils (14) are arranged inside the outer shell (2). The inner wall of the water pipe (4) is provided with a liner (16). An electrode (15) is provided on the liner (16). A contact (12) is provided on the water pipe (4). One end of the contact (12) is electrically connected to the back of the electrode (15), and the other end extends radially out of the water pipe (4).

2. The IoT water service flow meter of claim 1, wherein: A support plate (9) is fixedly connected to both the first cover plate (1) and the second cover plate (7), and a semi-circular notch is provided in the middle of the support plate (9) and is stuck on the water pipe (4). The upper and lower parts of the support plate (9) are provided with slots (10), and the two sides of the coil (14) are provided with limit blocks (13), which are fitted in the slots (10).

3. The IoT water service flow meter of claim 1, wherein: A sealing ring (6) is provided between the first cover plate (1) and the outer shell (2), and between the second cover plate (7) and the outer shell (2).

4. The IoT water service flow meter of claim 1, wherein: A connecting post (8) is fixedly connected to the second cover plate (7), and the other end of the connecting post (8) abuts against the first cover plate (1). The first cover plate (1), the second cover plate (7) and the connecting post (8) are provided with slots for inserting bolts and nuts.

5. The IoT water service flow meter of claim 1, wherein: The housing (2) is equipped with a control module (11), and an ink screen (3) is provided at the upper end of the control module (11). The ink screen (3) is visible from the upper end of the housing (2). The coil (14) and the contact (12) are electrically connected to the control module (11).

6. The IoT water service flow meter of claim 5, wherein: The housing (2) is equipped with a battery (17), and the battery (17) is electrically connected to the control module (11).

7. The IoT water service flow meter of claim 5, wherein: The upper end of the outer casing (2) is provided with a wiring port (5).

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