CN212567596U - High-precision water level automatic measuring instrument for model test - Google Patents
High-precision water level automatic measuring instrument for model test Download PDFInfo
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- CN212567596U CN212567596U CN202021480932.8U CN202021480932U CN212567596U CN 212567596 U CN212567596 U CN 212567596U CN 202021480932 U CN202021480932 U CN 202021480932U CN 212567596 U CN212567596 U CN 212567596U
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Abstract
The utility model discloses a high accuracy water level automatic measurement appearance for model test, include from last to the electric storehouse of rigid coupling in proper order down, middle part casing and support, install the ball of vertical setting in the middle part casing, ball is equipped with the screw rod, nut and support frame, the support frame is fixed on supporting the base, support base and support and the equal rigid coupling of middle part casing, be fixed with the slider on the nut, the upper end rigid coupling of slider and guide bar, guide bar and screw rod parallel arrangement, the lower extreme of guide bar passes through the stop collar, the stop collar is fixed on the support frame, lower extreme at the guide bar is fixed with ultrasonic sensor, the screw rod is by setting up motor drive above that, the motor ann changes at the top of support frame, by MCU control. The utility model discloses an adopt ball to drive ultrasonic sensor's structure, on the basis of guaranteeing short-distance ultrasonic sensor collection precision, adopt ball extension overall measurement range, realize high accuracy wide range water level automatic measure.
Description
Technical Field
The utility model belongs to the technical field of the sensor, more specifically the utility model relates to a high accuracy water level automatic measuring instrument is used in model test.
Background
Water level measurement is an important content of physical model tests of water transportation and ocean engineering, and relates to various test types such as a navigation channel, a ship lock, a harbor basin, a water tank, tidal current and the like. The water level measurement of a common model test adopts a water level measuring needle to manually measure or uses automatic water level measuring methods such as a float type water level meter, a tracking type water level meter, an ultrasonic type water level meter and the like, and the common automatic water level measuring instruments can meet actual requirements in occasions with low requirements on water level precision, but the traditional automatic water level measuring methods cannot meet the actual requirements in occasions with water level amplitude exceeding 30cm and water level precision requirements above 0.2mm, but the manual measuring methods of the water level measuring needle are started to measure on site instead, so that a large amount of manpower and material resources are needed, automation of the test process is not easy to realize, the manual measuring method is greatly influenced by human factors, and a high-precision water level measuring method and high-precision water level measuring equipment are urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem who exists among the well-known technique and provide a high accuracy water level automatic measuring apparatu for the model test.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a high-precision water level automatic measuring instrument for model test comprises an electric bin, a middle shell and a bracket which are fixedly connected from top to bottom in sequence, a vertically arranged ball screw is arranged in the middle shell, the ball screw is provided with a screw rod, a nut and a supporting frame, the supporting frame is fixed on a supporting base, the supporting base is fixedly connected with the bracket and the middle shell, a sliding block is fixed on the nut, the sliding block is fixedly connected with the upper end of a guide rod, the guide rod is arranged in parallel with the screw rod, the lower end of the guide rod passes through a limiting sleeve, the limiting sleeve is fixed on the supporting frame, an ultrasonic sensor is fixed at the lower end of the guide rod, the screw is driven by a motor arranged above the screw, the motor is arranged on the top of the support frame and controlled by an MCU, and the MCU is arranged on the control circuit board and integrated in the electric bin.
Still integrated in the electric storehouse have power, power control and conversion module, wireless data transmission module, display module and storage module, the power passes through power control and conversion module give ultrasonic sensor MCU with the motor power supply, MCU with wireless data transmission module display module storage module, keyboard and communication interface connect respectively, display module is equipped with the display screen, the display screen with the keyboard sets up on the lateral wall of electric storehouse, wireless data transmission module is equipped with the antenna, the antenna is installed the top in electric storehouse, communication interface passes the middle part casing is fixed support on the base.
The power is a lithium ion battery, the lithium ion battery is connected with a lithium ion battery charging controller, the lithium ion battery charging controller is connected with a power supply interface, and the power supply interface penetrates through the shell and is fixed on the supporting base.
The guide rod is of a tubular structure, and a cable connected with the ultrasonic sensor penetrates through the guide rod.
The motor is an integrated closed-loop control stepping motor with encoder feedback.
The electric bin is made of metal materials.
The display screen is an OLED screen.
The keyboard is a membrane keyboard.
The utility model has the advantages and positive effects that: through the structure that adopts ball to drive ultrasonic sensor, jointly use ball and ultrasonic sensor, on the basis of guaranteeing short-range ultrasonic sensor collection precision, use ball extension total measuring range, realize the model test water level automatic measure of the great range of high accuracy. And collection, storage, display and transmission work of the water level measurement process can be realized without depending on an external cable, the complexity of automatic water level measurement of a model test can be effectively reduced, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic view of the appearance structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic view of the internal structure of the electrical bin of the present invention;
fig. 4 is an electrical schematic block diagram of the present invention;
FIG. 5 is a circuit diagram of the power control circuit of the present invention;
fig. 6 is a circuit diagram of the control circuit board and the peripheral module according to the present invention.
In the figure: 1. an electric bin; 2. a motor; 3. a middle housing; 4. a screw; 5. an ultrasonic sensor; 6. a support; 7. a support base; 8. a communication interface; 9. a power supply interface; 10. a slider; 11. a guide bar; 12. a limiting sleeve; 13. a wireless antenna; 14. an indicator light; 15. a display screen; 16. a control circuit board; 17. a power source; 18. a support frame.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified and will be described in detail with reference to the accompanying drawings:
referring to fig. 1 to 6, a high-precision automatic water level measuring instrument for model test includes an electrical chamber 1, a middle housing 3 and a support 6, which are fixed in sequence from top to bottom.
Install the ball of vertical setting in the casing 3 of middle part, ball is equipped with screw rod 4, nut and support frame 18, support frame 18 is fixed on supporting base 7, support base 7 with support 6 with the equal rigid coupling of casing 3 of middle part be fixed with slider 10 on the nut, slider 10 and the upper end rigid coupling of guide bar 11, guide bar 11 with screw rod 4 parallel arrangement, the lower extreme of guide bar 11 passes through stop collar 12, stop collar 12 is fixed on support frame 18 the lower extreme of guide bar 11 is fixed with ultrasonic sensor 5.
The screw rod 4 is driven by a motor 2 arranged above the screw rod, the motor 2 is mounted and rotated on the top of the support frame 18 and controlled by an MCU (micro control unit), and the MCU is arranged on a control circuit board 16 and integrated in the electric bin 1.
In this embodiment, still integrated power 17, power control and conversion module, wireless data transmission module, display module and storage module in the electrical warehouse 1, power 17 passes through power control and conversion module give ultrasonic sensor 5 MCU with the power supply of motor 2, MCU with wireless data transmission module display module storage module, keyboard and communication interface 8 connect respectively, display module is equipped with display screen 15, display screen 15 with the keyboard sets up on the lateral wall of electrical warehouse 1, wireless data transmission module is equipped with antenna 13, antenna 13 installs the top of electrical warehouse 1, communication interface 8 passes middle part casing 3 is fixed support base 7 is last. The structure can realize the collection, storage, display and transmission work of the water level measurement process without depending on an external cable, and can effectively reduce the complexity of the automatic water level measurement of the model test.
The power 17 is a lithium ion battery, the lithium ion battery is connected with a lithium battery charging controller, the lithium battery charging controller is connected with a power supply interface 9, the power supply interface 9 penetrates through the middle shell 3 to be fixed on the supporting base 7, and the structure is convenient for the power 17 has enough electric quantity. The lithium battery charging controller can adopt a commercial product.
The guide rod 11 is of a tubular structure, and a cable connected with the ultrasonic sensor 5 penetrates through the guide rod 11, so that wiring is facilitated.
The motor 2 is an integrated closed-loop control stepping motor with encoder feedback, and is convenient to control.
The electrical bin 1 is made of metal.
The display screen 15 is an OLED screen, and is good in anti-seismic performance.
The keyboard is a membrane keyboard.
The utility model adopts a two-stage configuration composed of an ultrasonic sensor probe and a ball screw, wherein the ultrasonic sensor probe directly measures the distance between the probe and the water surface; the ball screw is rigidly connected with the ultrasonic probe through the sliding block, the MCU microcontroller controls the stepping motor to drive the ball screw to rotate, so that the sliding block and the ultrasonic sensor probe are driven to move, and the problem of small range of the ultrasonic water level probe is solved through the movement of the sliding block. When the sliding block moves to the two ends for limiting, the motor is only allowed to drive the sliding block to move reversely.
The utility model discloses a water level automatic measurement process as follows:
when the automatic water level measuring instrument is applied, the automatic water level measuring instrument is placed above a water body to be measured, the MCU controls the stepping motor to drive the guide rod and the ultrasonic sensor to move downwards, data collected by the ultrasonic sensor and position data of the sliding block are read in real time, when the distance from the water surface to the sensor reaches the sensor range 2/3, the stepping motor is shut down, and the original value collected by the sensor and the distance from the sliding block to the zero point of the water level instrument are used as the current water level value to be output. The MCU continuously monitors the position of the sensor in the continuous measurement process, and the automatic adjustment of the position of the sensor is realized by controlling the rotation of the stepping motor.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the scope of the present invention.
Claims (8)
1. The high-precision water level automatic measuring instrument for the model test is characterized by comprising an electric bin, a middle shell and a support which are fixedly connected from top to bottom in sequence, wherein a vertically arranged ball screw is arranged in the middle shell, the ball screw is provided with a screw, a nut and a support frame, the support frame is fixed on a support base, the support base is fixedly connected with the support and the middle shell, a sliding block is fixed on the nut, the sliding block is fixedly connected with the upper end of a guide rod, the guide rod is arranged in parallel with the screw, the lower end of the guide rod penetrates through a limiting sleeve, the limiting sleeve is fixed on the support frame, an ultrasonic sensor is fixed at the lower end of the guide rod, the screw is driven by a motor arranged above the screw, the motor is arranged at the top of the support frame and is controlled by an MCU, the MCU is arranged on a control circuit board, integrated within the electrical bin.
2. The automatic high-precision water level measuring instrument for the model test as claimed in claim 1, wherein a power supply, a power control and conversion module, a wireless data transmission module, a display module and a storage module are further integrated in the electric bin, the power supply supplies power to the ultrasonic sensor, the MCU and the motor through the power control and conversion module, the MCU is respectively connected with the wireless data transmission module, the display module, the storage module, a keyboard and a communication interface, the display module is provided with a display screen, the display screen and the keyboard are arranged on the side wall of the electric bin, the wireless data transmission module is provided with an antenna, the antenna is installed on the top of the electric bin, and the communication interface passes through the middle shell and is fixed on the supporting base.
3. The automatic high-precision water level measuring instrument for the model test as claimed in claim 2, wherein the power source is a lithium ion battery, the lithium ion battery is connected with a lithium battery charging controller, the lithium battery charging controller is connected with a power supply interface, and the power supply interface penetrates through the middle housing and is fixed on the supporting base.
4. The automatic water level measuring instrument for model test as claimed in claim 1, wherein the guide rod has a tubular structure, and a cable connected to the ultrasonic sensor is inserted into the guide rod.
5. The automatic water level measuring instrument for model test as claimed in claim 1, wherein the motor is an integrated closed-loop control stepping motor with encoder feedback.
6. The automatic water level measuring instrument for model test as claimed in claim 1, wherein the electric chamber is made of metal.
7. The automatic water level measuring instrument for model test as claimed in claim 2, wherein the display screen is an OLED screen.
8. The automatic water level measuring instrument for model test as claimed in claim 2, wherein the keyboard is a membrane keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021480932.8U CN212567596U (en) | 2020-07-24 | 2020-07-24 | High-precision water level automatic measuring instrument for model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021480932.8U CN212567596U (en) | 2020-07-24 | 2020-07-24 | High-precision water level automatic measuring instrument for model test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212567596U true CN212567596U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021480932.8U Active CN212567596U (en) | 2020-07-24 | 2020-07-24 | High-precision water level automatic measuring instrument for model test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212567596U (en) |
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2020
- 2020-07-24 CN CN202021480932.8U patent/CN212567596U/en active Active
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