An automatic reading device for measuring the needle of a quantity water weir

Abstract

The utility model discloses a kind of automatic reading quantity water weir measuring needle devices, including support (2) and measuring needle (5), digital display (1), motor (4) and measuring needle fixed structure (8) are installed on the support, the measuring needle is vertically installed in the measuring needle fixed structure, tooth slot (6) is set on the measuring needle along height direction, output gear (9) and rotary encoder are installed on the output shaft of the motor, the output gear is engaged with the tooth slot, water sensor (3) is rigidly connected and installed at the bottom of the measuring needle, the signal output end of the water sensor is connected with the control circuit of the motor through signal cable, the signal output end of the rotary encoder is connected with the digital display, when the water sensor senses water surface, the motor stops action, the digital display shows water weir water level.The utility model can realize the automatic measurement and reading of quantity water weir measuring needle, and measurement efficiency is high, easy to install, high accuracy.

Description

Technical Field

[0001] This utility model relates to a water measuring weir needle, specifically to an automatic reading device for a water measuring weir needle. Background Technology

[0002] A weir head gauge is a precision measuring instrument used to obtain accurate, quantified water level data for calculating flow rate. It is used for manually reading the head above a weir.

[0003] Traditional water head measurements using a weir probe involve manually rotating a knob to adjust the probe tip's contact with the water surface, then reading the value on the probe. Because this method requires human judgment to determine if the probe tip is precisely in contact with the water, and because it relies on manual observation and experience, its accuracy varies from person to person, and it cannot be automated. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic water level measuring device that can automatically read and track water levels, addressing the shortcomings of traditional water level measuring needles.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An automatic water weir measuring device includes a bracket and a measuring needle. A digital display, a motor, and a measuring needle fixing structure are mounted on the bracket. The measuring needle is vertically mounted inside the measuring needle fixing structure. The measuring needle has toothed grooves along its height direction. An output gear and a rotary encoder are mounted on the output shaft of the motor. The output gear meshes with the toothed grooves. A water sensor is rigidly connected to the bottom of the measuring needle. The signal output terminal of the water sensor is connected to the control circuit of the motor via a signal cable. The signal output terminal of the rotary encoder is connected to the digital display.

[0007] This invention installs a water sensor at the bottom of a traditional water measuring weir probe. Simultaneously, a motor drives the probe to move up and down. A rotary encoder is installed on the motor shaft. In this way, the water sensor can detect whether the probe has reached the water surface of the measuring well. Once the water sensor detects that the probe has reached the water surface, it cuts off the motor drive signal, causing the motor to stop. At this time, the rotary encoder sends the number of rotations of the motor output gear detected to the digital display. The digital display calculates the water head on the measuring weir and displays it.

[0008] It should be noted that the water sensor and rotary encoder are commercially available products, and the method by which the digital display calculates the water head on the measuring weir based on the number of rotations of the motor output gear is existing technology.

[0009] Preferably, the water sensor includes a buzzer, which sounds an alarm when the water sensor detects water surface.

[0010] Preferably, the bracket is a metal bracket, and the bottom of the bracket is provided with fixing screw holes.

[0011] Preferably, the bracket is fixed to the mounting base surface through the fixing screw hole.

[0012] Preferably, the water sensor is a contact-type water immersion sensor.

[0013] Preferably, the probe fixing structure is an open sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In use, this invention uses a water sensor to detect the water level, a motor to rotate and adjust the position of the probe, and a digital display to calculate and display the water head above the weir. Thus, this invention enables automated measurement and reading of the water level using the weir probe, with high measurement efficiency, convenient installation, and high accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the automatic reading water weir measuring needle device of this utility model.

[0018] Figure 2 This is a front view schematic diagram of the automatic reading water weir measuring needle device of this utility model.

[0019] Figure 3 This is a schematic diagram of the probe structure.

[0020] In the diagram: 1. Digital display; 2. Bracket; 3. Water sensor; 4. Motor; 5. Probe; 6. Gear; 7. Fixing screw hole; 8. Probe fixing structure; 9. Output gear. Detailed Implementation

[0021] The present invention will be further described below with reference to specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figures 1 to 3 An embodiment of the automatic water weir measuring needle device of this utility model includes a metal bracket 2 and a digital display 1, a motor 4, and a measuring needle fixing structure 8 mounted on the metal bracket 2. A measuring needle 5 is vertically installed in the measuring needle fixing structure 8. The measuring needle 5 has a toothed groove 6 along the height direction. An output gear 9 and a rotary encoder (not shown in the figure) are installed on the output shaft of the motor 4. The output gear 9 meshes with the toothed groove 6. A water sensor 3 is rigidly connected to the bottom of the measuring needle 5. The signal output terminal of the water sensor 3 is connected to the control circuit of the motor 4 via a signal cable. The signal output terminal of the rotary encoder is connected to the digital display 1.

[0025] The bottom of the metal bracket 2 is provided with fixing screw holes 7. This utility model is fixed to the mounting base surface at the water measuring weir by the fixing screw holes 7 and matching bolts.

[0026] The water sensor 3 is used to detect whether the probe 5 has reached the water surface. When the probe 5 reaches the water surface, the water sensor 3 sends a signal to the control circuit of the motor 4. After receiving the signal that the probe 5 has reached the water surface, the control circuit of the motor 4 cuts off the power to the motor 4, and the motor 4 stops operating. A buzzer is installed on the water sensor 3. When the water sensor 3 detects that the probe 5 is in contact with the water surface, the buzzer sounds an alarm. Preferably, the water sensor 3 is a contact-type water immersion sensor.

[0027] To facilitate the installation of the probe 5 and the connection between the motor 4 and the probe 5, the probe fixing structure 8 preferably adopts an open sleeve.

[0028] In use, the probe is first calibrated using conventional methods. Then, the motor 4 is started. The motor 4 drives the probe 5 towards the water surface via the meshing of the output gear 9 and the tooth groove 6. When the water sensor 3 at the bottom of the probe 5 detects that the probe 5 has contacted the water surface, the motor 4 stops operating. Simultaneously, the rotary encoder sends the number of rotations of the output gear of the motor 4 to the digital display 1. The digital display 1 calculates the water head on the weir based on the obtained number of rotations of the motor output gear and displays it. After one measurement, the motor 4 resets to await the next measurement.

[0029] In this embodiment, the outer surface of the probe 5 is surrounded by the probe fixing structure 8, the tooth groove 6 and the output gear 9 of the motor 4 mesh with each other, and the probe fixing structure 8 and the motor 4 interact to fix the probe 5 on the metal bracket 2.

[0030] In this embodiment, the digital display 1, the water sensor 3, and the rotary encoder are commercially available finished products. The method by which the digital display 1 calculates the water head on the weir based on the number of rotations of the motor output gear is existing technology.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model should fall within the protection scope of the technical solution of this utility model.

Claims

1. An automatic reading device for a water weir measuring needle, comprising a support (2) and a measuring needle (5), characterized in that: The bracket is equipped with a digital display (1), a motor (4) and a probe fixing structure (8). The probe is vertically installed in the probe fixing structure. The probe has a toothed groove (6) along the height direction. The output shaft of the motor is equipped with an output gear (9) and a rotary encoder. The output gear meshes with the toothed groove. The bottom of the probe is rigidly connected to a water sensor (3). The signal output terminal of the water sensor is connected to the control circuit of the motor via a signal cable. The signal output terminal of the rotary encoder is connected to the digital display.

2. The automatic reading water weir measuring needle device according to claim 1, characterized in that: The water sensor includes a buzzer, which sounds an alarm when the water sensor detects water surface.

3. The automatic reading water weir measuring needle device according to claim 1, characterized in that: The bracket is a metal bracket, and the bottom of the bracket is provided with fixing screw holes (7).

4. The automatic reading water weir measuring needle device according to claim 3, characterized in that: The bracket is fixed to the mounting base surface through the fixing screw holes.

5. The automatic reading water weir measuring needle device according to claim 1, characterized in that: The water sensor is a contact-type water immersion sensor.

6. The automatic reading water weir measuring needle device according to claim 1, characterized in that: The probe fixing structure is an open sleeve.

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