Irrigation flowmeter

Abstract

The utility model relates to an irrigation flow meter, which aims at solving the technical problems that the existing like products are inconvenient to produce, assemble and use pipe joints, particularly a meter cover, a corresponding display screen and keys are difficult to rotate by 360 degrees for use, and a shell is difficult to use horizontally or vertically. A Hall water flow sensor is arranged in the middle of a channel in a valve body of the flow meter, a middle pipe inner plug is arranged above the Hall water flow sensor, and a meter cover is provided with a display window and a key hole. The key point is that the bottom of the middle pipe inner plug is buckled and fixed in a center hole of a battery cover in the liquid seal cavity, a middle frame sleeved with the outer diameter of the top of the middle pipe inner plug is arranged above the battery cover, a water flow sensing module is arranged in the middle pipe inner plug, the middle frame and the battery cover are connected into a whole through a screw, and the middle frame is provided with a circuit board with a wireless connection module. The water flow sensing module interacts with the Hall water flow sensor through a magnetic field; buttons are symmetrically arranged in grooves in the two sides of the outer diameter of an inner channel of the valve body respectively, and the ring seat drives corresponding parts to rotate by 360 degrees through the meter cover.

Description

Technical Field

[0001] The utility model relates to a volumetric water meter, which is an irrigation flow meter. Background Art

[0002] A flow meter, or water meter, is an instrument used to measure water flow, mostly used for cumulative water flow measurement. According to different measurement principles, it is divided into velocity type, propeller type, and volumetric type. Among them, the volumetric water meter is installed in a pipeline. It is a water meter composed of a number of chambers of known volume that are successively filled and discharged with fluid and a mechanism driven by fluid. The volumetric water meter generally adopts a piston structure. The volumetric water meter is more accurate than the velocity water meter, and the error is controlled at ±0.5% or even lower. As disclosed in the Chinese patent document, application number 201910858673.3, application publication date 2019.11.05, invention name "water meter"; the volumetric flow meter of the water meter is arranged in the housing, and the volumetric flow meter is provided with an inlet and an outlet, the inlet is connected to the water inlet, and a filter device is provided at the inlet, and the filter device is located between the water inlet and the sewage channel. However, the production, assembly and use of the above-mentioned products and similar products are relatively inconvenient, especially the cover and the corresponding display screen and buttons are difficult to rotate 360 ​​degrees, and the shell is difficult to use horizontally or vertically. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide an irrigation flow meter in the art, which can solve the technical problems that the production, assembly and pipe connection of existing similar products are inconvenient, especially the meter cover and the corresponding display screen and buttons are difficult to rotate 360 ​​degrees, and the shell is difficult to use horizontally or vertically. The purpose is achieved through the following technical solutions.

[0004] An irrigation flow meter, wherein a Hall water flow sensor is provided in the middle of a channel in a valve body of the flow meter, a middle tube plug is provided in the center of a circular liquid seal cavity above the Hall water flow sensor, and a display window and a button hole are provided on a cover above the valve body; the key points of the structural design are that the bottom of the middle tube plug is buckled and fixed to the center hole of a battery cover in the liquid seal cavity, a middle frame is provided above the battery cover to be inserted into the outer diameter of the top of the middle tube plug, a water flow sensing module is provided in the middle tube plug, the middle frame and the battery cover are connected as a whole by screws, the middle frame is provided with a circuit board, the circuit board is connected to the battery in the liquid seal cavity, the circuit board is provided with a wireless connection module, and the water flow sensing module interacts with the Hall water flow sensor through a magnetic field. Thus, the upper counting component and the lower metering component in the valve body of the flow meter are used separately in dry and wet conditions, and the relevant components are convenient to rotate with the middle tube plug as the central axis.

[0005] The grooves on both sides of the outer diameter of the inner channel of the valve body are symmetrically provided with buttons, and springs are provided inside the buttons. The barbs on the top of the buttons are simultaneously engaged with the grooves on the inner diameter of the ring seat at the top ring opening of the valve body, and the top seat opening of the ring seat is connected to the cover by ultrasonic welding. The above structural design facilitates the ring seat to drive the cover to rotate together after the button is released, and also facilitates the upper counting component in the lower valve body to rotate 360 ​​degrees after being connected as a whole.

[0006] The middle frame in the meter cover is connected to the meter cover by another screw, and the buttons on both sides are pressed at the same time, and the ring seat drives the meter cover, circuit board, battery, middle frame and battery cover to rotate 360 ​​degrees together through the meter cover. The above structural design facilitates the upper counting component in the valve body to rotate 360 ​​degrees after being connected as a whole, and the position can be easily set according to the visual and observation angle.

[0007] A sealing sleeve is provided in the water inlet at one end of the channel in the valve body, a pipe connection sleeve with an outer diameter of the sealing sleeve, and an internal thread is provided in the sleeve of the pipe connection sleeve. A quick connector is provided at the water outlet at the other end of the channel in the valve body, and an external thread is provided at the outer diameter of the interface of the quick connector. The above is a structural embodiment of a quick connector, and other existing pipe connection methods can also be used.

[0008] The inner diameter of the sealing sleeve is a hexagonal hole, and the outer diameter limiting ring of the sealing sleeve is against the limiting opening at one end of the inner diameter of the pipe connection sleeve. The above is another structural embodiment of the quick connector, which can also adopt other existing pipe connection methods.

[0009] A surface cover is provided at the top plane groove of the table cover, and the display window area and button area of ​​the surface cover correspond to the display window and button hole of the table cover respectively.

[0010] The battery is a dry cell, and the battery is symmetrically arranged in a battery cavity formed by connecting the middle frame on both sides of the middle tube plug and the battery cover, and the battery cover is rectangular. Thus, the dry cell increases the service life of the flow meter.

[0011] The utility model has a reasonable structural design and is convenient to produce, assemble, install and use, especially the table cover and the corresponding display screen and buttons can be rotated 360 degrees, and the shell can be used horizontally or vertically for convenience; it is suitable for use as an irrigation flow meter and a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of a partial explosion state of an embodiment of the utility model.

[0013] Figure 2 yes Figure 1 The cross-sectional structure diagram after assembly Figure 1 .

[0014] Figure 3 yes Figure 1 The cross-sectional structure diagram after assembly Figure 2 .

[0015] Figure 4 yes Figure 1 Schematic diagram of the internal structure of the cover after assembly.

[0016] Figure 5 yes Figure 4 Schematic diagram of the internal structure below the watch cover after assembly, with the watch cover, battery, middle frame and circuit board omitted in the figure.

[0017] Serial numbers and names of the accompanying drawings: 1. Valve body, 2. Button, 201, barb, 3. Spring, 4. Battery cover, 5. Middle tube inner plug, 6. Ring seat, 7. Middle frame, 8. Circuit board, 9. Table cover, 10. Surface cover, 11. Hall water flow sensor, 12. Sealing sleeve, 13. Pipe connector, 14. Quick connector, 15. Screws, 16. Battery. Implementation

[0018] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-Figure 5 As shown, a Hall water flow sensor 11 is provided in the middle of the inner channel of the valve body 1 of the flow meter, a middle tube plug 5 is provided in the center of the circular liquid seal cavity above the Hall water flow sensor, and a display window and a button hole are provided on the cover 9 above the valve body; the bottom of the middle tube plug is buckled and fixed to the center hole of the battery cover 4 in the liquid seal cavity, a middle frame 7 is provided above the battery cover to be inserted into the outer diameter of the top of the middle tube plug, a water flow sensing module is provided in the middle tube plug, the middle frame and the battery cover are connected as a whole by screws 15, the middle frame is provided with a circuit board 8, the circuit board is connected to the battery 16 in the liquid seal cavity, the circuit board is connected to the middle tube plug as a whole, the circuit board is provided with a wireless connection module, and the water flow sensing module interacts with the Hall water flow sensor through a magnetic field. Its specific structure is as follows: buttons 2 are symmetrically provided in the grooves on both sides of the outer diameter of the inner channel of the above-mentioned valve body, springs 3 are provided on the inner side of the buttons, and the barbs 201 on the top of the buttons are buckled with the inner diameter grooves of the ring seat 6 at the top ring of the valve body at the same time, and the top seat of the ring seat and the cover are connected as a whole by ultrasonic welding. The middle frame inside the watch cover is connected to the watch cover by another screw. By pressing the buttons on both sides at the same time, the ring seat drives the watch cover, circuit board, battery, middle frame and battery cover to rotate 360 ​​degrees together through the watch cover.

[0019] At the same time, a sealing sleeve 12 is provided in the water inlet at one end of the inner channel of the valve body, a pipe connection sleeve 13 is provided at the outer diameter of the sealing sleeve, and an internal thread is provided in the sleeve of the pipe connection sleeve. A quick connector 14 is provided at the water outlet at the other end of the inner channel of the valve body, and an external thread is provided at the outer diameter of the interface of the quick connector. The inner diameter of the sealing sleeve is an inner hexagonal hole, and the outer diameter limit ring of the sleeve of the sealing sleeve is against the limit opening at one end of the inner diameter of the pipe connection sleeve. A face cover 10 is provided at the top flat groove of the meter cover, and the display window area and button area of ​​the face cover correspond to the display window and button hole of the meter cover respectively. The battery is a dry cell, and the battery is symmetrically arranged in the battery cavity formed by connecting the middle frame on both sides of the middle tube plug and the battery cover, and the battery cover is rectangular.

[0020] When in use, the flow meter is connected horizontally or vertically to the water pipe of the pipeline through the pipe sockets and quick connectors at both ends. In order to facilitate the numerical observation of the meter cover, press the buttons on both sides at the same time, or turn the meter cover to adjust the position of the display window, and then release the buttons. When the water in the water pipe passes through the Hall water flow sensor in the valve body, the flow rate can be read and recorded through the water flow sensing module.

Claims

1. An irrigation flow meter, wherein a Hall water flow sensor (11) is provided in the middle of a channel in a valve body (1) of the flow meter, a middle tube plug (5) is provided in the center of a circular liquid seal cavity above the Hall water flow sensor, and a meter cover (9) above the valve body is provided with a display window and a button hole; characterized in that The bottom of the middle tube inner plug (5) is buckled and fixed to the central hole of the battery cover (4) in the liquid sealing cavity. A middle frame (7) is provided above the battery cover and is inserted into the outer diameter of the top of the middle tube inner plug. A water flow sensing module is provided in the middle tube inner plug. The middle frame and the battery cover are connected as a whole by screws (15). The middle frame is provided with a circuit board (8). The circuit board is connected as a whole to the middle tube inner plug. The circuit board is connected to the battery (16) in the liquid sealing cavity. The circuit board is provided with a wireless connection module. The water flow sensing module interacts with the Hall water flow sensor (11) through a magnetic field.

2. The irrigation flow meter according to claim 1, characterized in that Buttons (2) are symmetrically arranged in the grooves on both sides of the outer diameter of the inner channel of the valve body (1), and springs (3) are arranged inside the buttons. The barbs (201) on the top of the buttons are simultaneously engaged with the grooves on the inner diameter of the ring seat (6) at the top ring opening of the valve body, and the top seat opening of the ring seat is connected to the cover (9) by ultrasonic welding.

3. The irrigation flow meter according to claim 2, characterized in that The middle frame (7) in the watch cover (9) is connected to the watch cover as a whole by another screw (15), and by pressing the buttons (2) on both sides at the same time, the ring seat (6) drives the watch cover, the circuit board (8), the battery (16), the middle frame and the battery cover (4) to rotate 360 ​​degrees together through the watch cover.

4. The irrigation flow meter according to claim 1, characterized in that A sealing sleeve (12) is provided in the water inlet at one end of the inner channel of the valve body (1), a pipe connection sleeve (13) having an outer diameter of the sealing sleeve, an inner sleeve of the pipe connection sleeve having an inner thread, and a quick connector (14) is provided at the water outlet at the other end of the inner channel of the valve body, an outer diameter of the interface of the quick connector having an outer thread.

5. The irrigation flow meter according to claim 4, characterized in that The inner diameter of the sealing sleeve (12) is in the form of an inner hexagonal hole, and the outer diameter limiting ring of the sleeve opening of the sealing sleeve abuts against the limiting opening at one end of the inner diameter of the pipe connecting sleeve (13).

6. The irrigation flow meter according to claim 1, characterized in that A surface cover (10) is provided at the top planar groove of the surface cover (9), and a display window area and a key area of ​​the surface cover correspond to the display window and the key hole of the surface cover respectively.

7. The irrigation flow meter according to claim 1, characterized in that The battery (16) is a dry cell battery, which is symmetrically arranged in a battery cavity formed by connecting the middle frame (7) on both sides of the middle tube inner plug (5) and the battery cover (4), and the battery cover is rectangular.

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