An intelligent water level wireless monitoring liquid level meter

Abstract

The present invention relates to the technical field of water level monitoring devices, and discloses an intelligent water level wireless monitoring liquid level meter, comprising a box body, a fixed rod is fixedly installed at the bottom end of the box body, a movable rod is movably sleeved at the bottom end of the fixed rod, limit slots are provided on both the left and right sides of the inner cavity of the fixed rod, and limit strips are fixedly installed on both the left and right ends of the movable rod. The intelligent water level wireless monitoring liquid level meter drives the movable rod to move up and down by the floating ball following the movement of the liquid surface. At this time, the movable rod can move between the relative limit slots driven by the limit strips, and the reset spring is compressed to prevent the movable rod from tilting when it is relatively displaced. At this time, the reset spring can be compressed and pass pressure to the pressure block, and the pressure block transmits the pressure to the pressure sensor to complete the pressure measurement and then measure the change of the liquid surface, thereby achieving the advantage of preventing the floating ball from tilting and causing the measured value to change.

Description

Technical Field

[0001] The invention relates to the technical field of water level monitoring devices, in particular to an intelligent water level wireless monitoring liquid level meter. Background Art

[0002] The height of the liquid medium in the container is called the liquid level, and the instrument for measuring the liquid level is called a liquid level meter. The liquid level meter is a type of level instrument. The types of liquid level meters include tuning fork vibration type, magnetic levitation type, pressure type, ultrasonic, sonar wave, magnetic flap, radar, etc. Among them, the float type liquid level meter is widely used due to its simple structure and long life. Float liquid level transmitters are widely used in oil refining, chemical, papermaking, food, and sewage treatment industries. It can display, alarm and control the liquid level of the medium in open, closed containers or underground tanks in the instrument control room. The detected medium can be conductive and non-conductive liquids such as water, oil, acid, alkali, industrial sewage, etc., and can overcome the influence of false liquid level caused by liquid foam. Among them, the structure of the float liquid level meter is mainly designed and produced based on the principles of buoyancy and static magnetic field. The position of the float with a magnet (referred to as the float) in the measured medium is affected by the buoyancy: the change of liquid level causes the change of the position of the magnetic float. The magnet in the float and the sensor (reed switch) act to change the number of components (such as fixed resistors) connected in series in the circuit, thereby changing the electrical quantity of the instrument circuit system. That is, the change in the position of the magnetic float causes the change in the electrical quantity. The liquid level in the container is reflected by detecting the change in the electrical quantity. The magnetic flap level gauge is also called a magnetic float level gauge or a magnetic flip column level gauge. The communicating vessel principle is developed based on the buoyancy principle and magnetic coupling. When the liquid level in the measured container rises or falls, the permanent magnet in the float is transmitted to the magnetic flip column indicator panel through magnetic coupling, causing the red and white flip columns to flip 180°. When the liquid level rises, the flip column turns from white to red, and when the liquid level drops, the flip column turns from red to white. The red and white junction on the panel is the actual height of the liquid level in the container, thereby realizing the liquid level display. When the sensor of the magnetostrictive level gauge is working, the circuit part of the sensor will excite a pulse current on the waveguide wire, and the pulse current magnetic field will be generated around the waveguide wire when the current propagates along the waveguide wire. A float is provided outside the sensor rod of the magnetostrictive level meter. The float can move up and down along the rod as the liquid level changes. There is a set of permanent magnetic rings inside the float. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the float, the magnetic field around the float changes, so that the waveguide made of magnetostrictive material generates a torsion wave pulse at the position of the float. This pulse is transmitted back along the waveguide at a fixed speed and detected by the detection mechanism. By measuring the time difference between the pulse current and the torsion wave, the position of the float, that is, the position of the liquid surface, can be accurately determined. The radio frequency admittance level meter consists of a sensor and a control instrument. The sensor can be installed on the top of the warehouse using a rod, coaxial or cable probe. The pulse card in the sensor can convert the level change into a pulse signal and send it to the control instrument. The control instrument converts it into an engineering quantity display after calculation processing, thereby realizing continuous measurement of the level.

[0003] There are many types of liquid level gauges currently in use. When using them, the appropriate liquid level gauge is generally selected according to the surrounding environment and work intensity. The float-type liquid level gauges currently used on the market are mainly implemented using the Archimedean principle. The difference in buoyancy generated by the increase in liquid level causes the upper and lower positions of the float to change. At this time, the connecting rod connected to the float can cause the electrical charge of the sensor inside the liquid level gauge to change, thereby realizing the measurement of the liquid level. However, in actual use, although the float can change and move up and down with the change in liquid level, the wind force on the liquid surface and the force that causes the float to tilt drive the connecting rod to tilt and move, which can easily cause the data measured by the sensor to change, affecting the measurement data.

[0004] At the same time, the existing liquid level gauge is generally installed close to the liquid surface when in use, and the installation position is generally fixed. In actual use, the float will rise and fall with the liquid level, and the entire device is in motion. Since the device is fixed to the fixed surface through structures such as mounting plates, it is very easy to cause loosening after long-term use due to the lack of compensation and buffer devices.

[0005] Because the liquid level meters currently used generally contain sensors for measuring changes in current or pressure, and the sensors themselves require external power supply to ensure operation, existing devices generally use batteries as external energy sources to power the sensors. However, after long-term use, the batteries are prone to running out of power and need to be replaced. Existing devices do not have external power supply devices, resulting in frequent need to replace the batteries, which reduces convenience. Summary of the invention

[0006] The present invention provides an intelligent water level wireless monitoring liquid level meter, which has the advantages of preventing the floating ball from tilting and causing the measured value to change, having a compensation buffer device, and having multiple battery power supply modes, thereby solving the problems raised in the above background technology.

[0007] The present invention provides the following technical solution: an intelligent water level wireless monitoring liquid level meter, comprising a box body, a fixed rod fixedly installed at the bottom end of the box body, a movable rod movably sleeved at the bottom end of the fixed rod, limiting grooves are provided on the left and right sides of the inner cavity of the fixed rod, limiting strips are fixedly installed at both ends of the left and right ends of the movable rod, the movable rod is movably connected to the limiting groove through the limiting strip, a reset spring located inside the limiting groove is fixedly installed at the top end of the limiting strip, the top end of the reset spring is fixedly connected to the top end of the inner cavity of the limiting groove, a pressure spring located inside the fixed rod is fixedly installed at the top end of the movable rod, a pressure sensor is fixedly installed at the bottom end of the inner cavity of the box body, a pressure block is fixedly installed at the bottom end of the pressure sensor, and the bottom end of the pressure block is in contact with the top end of the pressure spring.

[0008] Preferably, a float is fixedly installed at the bottom end of the movable rod, the length of the movable rod is greater than the length of the fixed rod, the diameter of the float is greater than the diameter of the movable rod, the length of the movable rod is ten meters, and the diameter of the float is fifty centimeters. When the liquid level changes, the buoyancy will cause the float to move up and down following the movement of the liquid level, which will drive the movable rod to move up and down. At this time, the movable rod can move between the relative limit grooves driven by the limit bar, and the reset spring is compressed at the same time to prevent the movable rod from tilting when it is relatively displaced.

[0009] Preferably, a battery located at the top of the pressure sensor is fixedly installed at the bottom end of the inner cavity of the box, a wireless module is fixedly installed on the left side of the battery, the output end of the battery is electrically connected to the wireless module and the pressure sensor, the battery can power the pressure sensor and the wireless module, and the data measured by the pressure sensor can be remotely transmitted to the user terminal through the wireless module without the need for on-site inspection by staff.

[0010] Preferably, a fixing plate is fixedly sleeved on the top of the outer side surface of the box body, and fixing columns are fixedly installed at the four corners of the fixing plate. A completely penetrating movable groove is opened at the top of the fixing column, and a movable block is movably installed inside the movable groove, and a limit spring located inside the movable groove is fixedly installed on one end of the movable block, and a fixing bolt is movably installed on one side of the movable groove, and one side of the fixing bolt is in contact with the movable block. When the device moves due to the change of the float position, the movable block located on the side of the fixing bolt can absorb part of the vibration and then compress the limit spring to drive the fixed plate to move relative to the fixing bolt, thereby avoiding loosening of the device itself.

[0011] Preferably, solar panels are fixedly installed on the front and rear sides of the top of the box body, a main shaft is movably installed in the middle of the inner cavity of the box body, the left and right ends of the main shaft pass through the left and right ends of the box body and are fixedly installed with impellers, the outer side surface of the main shaft is movably sleeved with a belt, the inner cavity of the box body is provided with a generator located above the main shaft, the left and right ends of the generator are fixedly installed with fixing frames, the outer side surface of the fixing frame is fixedly connected to the inner cavity of the box body, and the two ends of the generator input shaft are fixedly installed with a transmission shaft, the other end of the belt is movably sleeved with the transmission shaft, and the solar panel can absorb light energy and convert it into electrical energy to power the battery. At the same time, impellers are provided at both ends of the box body, the impellers can rotate with the flow of liquid on the liquid surface to drive the rotation of the main shaft, and at this time, the belt on the outer side of the main shaft can drive the rotation of the transmission shaft, and finally drive the input shaft of the generator to rotate, convert mechanical energy into electrical energy and power the battery.

[0012] Preferably, the output ends of the solar panel and the generator are electrically connected to the input end of the battery, and the solar panel absorbs light energy and converts it into electrical energy, and the electrical energy generated by the generator due to mechanical energy can all be transmitted to the inside of the battery to charge the battery.

[0013] The present invention has the following beneficial effects:

[0014] 1. The intelligent water level wireless monitoring liquid level gauge has a fixed rod fixed at the bottom, and a movable rod movably sleeved at the bottom of the fixed rod. When in use, the float ball can be placed in the liquid to be measured. When the liquid level changes, the buoyancy will cause the float ball to move up and down following the movement of the liquid level, which will drive the movable rod to move up and down. At this time, the movable rod can move between the relative limit grooves driven by the limit bar, and the reset spring is compressed to prevent the movable rod from tilting during relative displacement. At this time, the reset spring can be compressed and pass pressure to the pressure block. The pressure block transmits the pressure to the pressure sensor to complete the pressure measurement and then measure the change of the liquid level, thereby achieving the advantage of preventing the floating ball from tilting and causing the measured value to change.

[0015] 2. The intelligent water level wireless monitoring liquid level meter has a fixed plate fixedly sleeved on the top of the outer side of the box body, fixed columns are fixed at the four corners of the fixed plate, and a movable groove is opened at the top of the fixed column. When the device needs to be fixed, the device can be fixed to the ground or other places by fixing bolts. When the device moves due to the change of the float position, the movable block on the side of the fixing bolt can absorb part of the vibration and then compress the limit spring to drive the fixed plate to move relative to the fixing bolt, thereby avoiding loosening of the device itself, thereby achieving the advantage of having a compensating buffer device.

[0016] 3. The intelligent water level wireless monitoring liquid level meter has a solar panel fixed on the top of the box. When the box is installed on the liquid surface for use, the solar panel can absorb light energy and convert it into electrical energy to power the battery. At the same time, impellers are provided at both ends of the box. The impellers can rotate with the flow of liquid on the liquid surface to drive the rotation of the main shaft. At this time, the belt on the outer side of the main shaft can drive the rotation of the transmission shaft, and finally drive the input shaft of the generator to rotate, convert mechanical energy into electrical energy and power the battery to prevent the battery from being insufficient, thereby achieving the advantage of having multiple ways to power the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is an exploded schematic diagram of the fixing bolt structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the internal structure of the box body of the present invention;

[0020] Figure 4 is a cross-sectional view of the internal structure of the present invention;

[0021] Figure 5 for Figure 2 A magnified schematic diagram of the structure at center A;

[0022] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B in the figure.

[0023] In the figure: 1. box; 2. battery; 3. wireless module; 4. fixing frame; 5. generator; 6. main shaft; 7. transmission shaft; 8. impeller; 9. belt; 10. solar panel; 11. fixing plate; 12. fixing column; 13. movable groove; 14. movable block; 15. limit spring; 16. fixing bolt; 17. fixing rod; 18. movable rod; 19. limit groove; 20. reset spring; 21. limit strip; 22. pressure block; 23. pressure spring; 24. pressure sensor; 25. float. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-6 A smart water level wireless monitoring liquid level meter includes a box body 1, a fixed rod 17 is fixedly installed at the bottom end of the box body 1, and a movable rod 18 is movably sleeved at the bottom end of the fixed rod 17. Limiting grooves 19 are provided on both sides of the inner cavity of the fixed rod 17, and limiting strips 21 are fixedly installed on both ends of the movable rod 18. The movable rod 18 is movably connected with the limiting groove 19 through the limiting strip 21. A reset spring 20 located inside the limiting groove 19 is fixedly installed at the top of the limiting strip 21. The top of the reset spring 20 is fixedly connected to the top of the inner cavity of the limiting groove 19. A pressure spring 23 located inside the fixed rod 17 is fixedly installed at the top of the movable rod 18. A pressure sensor 24 is fixedly installed at the bottom end of the inner cavity of the box body 1, and a pressure block 22 is fixedly installed at the bottom end of the pressure sensor 24. The bottom end of the pressure block 22 contacts the top end of the pressure spring 23.

[0026] Among them, a float 25 is fixedly installed at the bottom end of the movable rod 18, the length of the movable rod 18 is greater than the length of the fixed rod 17, the diameter of the float 25 is greater than the diameter of the movable rod 18, the length of the movable rod 18 is ten meters, and the diameter of the float 25 is fifty centimeters. When the liquid level changes, the buoyancy will cause the float 25 to move up and down following the movement of the liquid level, which will drive the movable rod 18 to move up and down. At this time, the movable rod 18 can move between the relative limit grooves 19 under the drive of the limit strip 21, and the reset spring 20 is compressed at the same time to prevent the movable rod 18 from tilting during relative displacement.

[0027] Among them, a battery 2 located at the top of the pressure sensor 24 is fixedly installed at the bottom of the inner cavity of the box body 1, and a wireless module 3 is fixedly installed on the left side of the battery 2. The output end of the battery 2 is electrically connected to the wireless module 3 and the pressure sensor 24. The battery 2 can power the pressure sensor 24 and the wireless module 3. At the same time, the data measured by the pressure sensor 24 can be remotely transmitted to the user terminal through the wireless module 3 without the need for on-site inspection by staff.

[0028] Among them, a fixing plate 11 is fixedly sleeved on the top of the outer side of the box body 1, and fixing columns 12 are fixedly installed at the four corners of the fixing plate 11. A completely penetrating movable groove 13 is opened at the top of the fixing column 12, and a movable block 14 is movably installed inside the movable groove 13. A limit spring 15 located inside the movable groove 13 is fixedly installed at one end of the movable block 14. A fixing bolt 16 is movably installed on one side of the movable groove 13, and one side of the fixing bolt 16 is in contact with the movable block 14. When the device needs to be fixed, the device can be fixed to the ground or other places by the fixing bolt 16. When the device moves due to the change in the position of the float 25, the movable block 14 on the side of the fixing bolt 16 can absorb part of the vibration and then compress the limit spring 15 to drive the fixed plate 11 to move relative to the fixing bolt 16 to avoid loosening of the device itself.

[0029] Among them, solar panels 10 are fixedly installed on the front and rear sides of the top of the box body 1, a main shaft 6 is movably installed in the middle of the inner cavity of the box body 1, the left and right ends of the main shaft 6 pass through the left and right ends of the box body 1 and are fixedly installed with impellers 8, and the outer side of the main shaft 6 is movably sleeved with a belt 9, and the inner cavity of the box body 1 is provided with a generator 5 located above the main shaft 6, and the left and right ends of the generator 5 are fixedly installed with a fixing frame 4, and the outer side of the fixing frame 4 is fixedly connected to the inner cavity of the box body 1, and the two ends of the input shaft of the generator 5 are fixedly installed with a transmission shaft 7, and the other end of the belt 9 is movably sleeved with the transmission shaft 7, which can absorb light energy through the solar panel 10 and convert it into electrical energy to supply power to the battery 2. At the same time, impellers 8 are provided at both ends of the box body 1, and the impeller 8 can rotate with the flow of liquid on the liquid surface to drive the rotation of the main shaft 6. At this time, the belt 9 on the outer side of the main shaft 6 can drive the rotation of the transmission shaft 7, and finally drive the input shaft of the generator 5 to rotate, convert mechanical energy into electrical energy and supply power to the battery 2.

[0030] The output ends of the solar panel 10 and the generator 5 are electrically connected to the input end of the battery 2. The solar panel 10 absorbs light energy and converts it into electrical energy. The electrical energy generated by the generator 5 due to mechanical energy can all be transmitted to the inside of the battery 2 to charge the battery.

[0031] Working principle: when the intelligent water level wireless monitoring liquid level gauge is in use, when the liquid level changes, the buoyancy will cause the float 25 to move up and down following the movement of the liquid level, which will drive the movable rod 18 to move up and down. At this time, the movable rod 18 can move between the relative limit grooves 19 driven by the limit bar 21, and the reset spring 20 is compressed to prevent the movable rod 18 from tilting during relative displacement. At this time, the reset spring 20 can be compressed and pass the pressure to the pressure block 22. The pressure block 22 transmits the pressure to the pressure sensor 24 to complete the pressure measurement and then measure the change of the liquid level. When the box body 1 is installed on the liquid surface for use, the solar panel 10 can absorb light energy and convert it into electrical energy to power the battery 2. At the same time, impellers 8 are provided at both ends of the box body 1. The impeller 8 can rotate following the flow of liquid on the liquid surface to drive the rotation of the main shaft 6. At this time, the belt 9 on the outer side of the main shaft 6 can drive the rotation of the transmission shaft 7, and finally drive the input shaft of the generator 5 to rotate to convert mechanical energy into electrical energy and power the battery 2.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent water level wireless monitoring liquid level meter, comprising a box (1), characterized in that: A fixed rod (17) is fixedly installed at the bottom end of the box body (1), and a movable rod (18) is movably sleeved at the bottom end of the fixed rod (17). Limiting grooves (19) are provided on both left and right sides of the inner cavity of the fixed rod (17). Limiting strips (21) are fixedly installed at both left and right ends of the movable rod (18). The movable rod (18) is movably connected to the limiting groove (19) through the limiting strips (21), and a movable rod (18) is fixedly installed at the top end of the limiting strip (21) and is located in the limiting groove (19). A return spring (20) is provided at the bottom of the inner cavity of the housing (1), the top end of the return spring (20) is fixedly connected to the top end of the inner cavity of the limiting groove (19), the top end of the movable rod (18) is fixedly installed with a pressure spring (23) located inside the fixed rod (17), the bottom end of the inner cavity of the housing (1) is fixedly installed with a pressure sensor (24), the bottom end of the pressure sensor (24) is fixedly installed with a pressure block (22), and the bottom end of the pressure block (22) is in contact with the top end of the pressure spring (23); A floating ball (25) is fixedly mounted at the bottom end of the movable rod (18), the length of the movable rod (18) is greater than the length of the fixed rod (17), the diameter of the floating ball (25) is greater than the diameter of the movable rod (18), the length of the movable rod (18) is ten meters, and the diameter of the floating ball (25) is fifty centimeters; A battery (2) located at the top of the pressure sensor (24) is fixedly installed at the bottom of the inner cavity of the box (1), a wireless module (3) is fixedly installed on the left side of the battery (2), and the output end of the battery (2) is electrically connected to the wireless module (3) and the pressure sensor (24); A fixing plate (11) is fixedly sleeved at the top of the outer side surface of the box body (1), and fixing columns (12) are fixedly installed at the four corners of the fixing plate (11). A completely penetrating movable groove (13) is provided at the top of the fixing column (12), and a movable block (14) is movably installed inside the movable groove (13). A limit spring (15) located inside the movable groove (13) is fixedly installed at one end of the movable block (14), and a fixing bolt (16) is movably installed on one side of the movable groove (13), and one side of the fixing bolt (16) is in contact with the movable block (14); When the liquid level changes, the buoyancy will cause the float (25) to move up and down following the movement of the liquid level, thereby driving the movable rod (18) to move up and down. At this time, the movable rod (18) moves relative to the limit groove (19) driven by the limit bar (21), and the return spring (20) is compressed to prevent the movable rod (18) from tilting during relative displacement. At this time, the return spring (20) is compressed and passes pressure to the pressure block (22), and the pressure block (22) transmits the pressure to the pressure sensor (24). The pressure is measured and then the change of the liquid level is measured. When the box (1) is installed on the liquid surface for use, the solar panel (10) absorbs light energy and converts it into electrical energy to supply power to the storage battery (2). At the same time, impellers (8) are provided at both ends of the box (1). The impellers (8) rotate to follow the flow of the liquid on the liquid surface to drive the rotation of the main shaft (6). At this time, the belt (9) on the outer side of the main shaft (6) drives the rotation of the transmission shaft (7), and finally drives the input shaft of the generator (5) to rotate to convert mechanical energy into electrical energy and supply power to the storage battery (2). A fixing plate is fixedly sleeved on the top of the outer side of the box body, and fixing columns are fixed at the four corners of the fixing plate, and a movable groove is opened at the top of the fixing column. When the intelligent water level wireless monitoring liquid level meter needs to be fixed, the intelligent water level wireless monitoring liquid level meter can be fixed to the ground by fixing bolts. When the intelligent water level wireless monitoring liquid level meter moves due to the change of the float position, the movable block located on the side of the fixing bolt can absorb part of the vibration and then compress the limit spring to drive the fixed plate to move relative to the fixing bolt to avoid loosening of the device itself, thereby realizing the advantage of having a compensating buffer device.

2. The intelligent water level wireless monitoring liquid level meter according to claim 1 is characterized by: Solar panels (10) are fixedly mounted on both the front and rear sides of the top of the housing (1); a main shaft (6) is movably mounted in the middle of the inner cavity of the housing (1); both left and right ends of the main shaft (6) penetrate the left and right ends of the housing (1) and are fixedly mounted with impellers (8); a belt (9) is movably sleeved on the outer side of the main shaft (6); a generator (5) located above the main shaft (6) is provided in the inner cavity of the housing (1); a fixing frame (4) is fixedly mounted on the left and right ends of the generator (5); the outer side of the fixing frame (4) is fixedly connected to the inner cavity of the housing (1); a transmission shaft (7) is fixedly mounted on both ends of the input shaft of the generator (5); and the other end of the belt (9) is movably sleeved on the transmission shaft (7).

3. The intelligent water level wireless monitoring liquid level meter according to claim 2 is characterized by: The output ends of the solar panel (10) and the generator (5) are electrically connected to the input end of the storage battery (2).

Images