CN213748429U - Tidal water level monitoring device - Google Patents
Tidal water level monitoring device Download PDFInfo
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- CN213748429U CN213748429U CN202023217053.9U CN202023217053U CN213748429U CN 213748429 U CN213748429 U CN 213748429U CN 202023217053 U CN202023217053 U CN 202023217053U CN 213748429 U CN213748429 U CN 213748429U
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Abstract
A tidal water level monitoring device comprises a mounting rack, a detection box, a floater and a pull rope, wherein a tension sensor and a winding wheel are arranged in the detection box; the detection box is fixedly connected to the mounting frame, the mounting frame is fixed relative to the ground and is provided with a guide groove, and the floater is arranged in the guide groove and can move up and down along the guide groove; one end of the pull rope is connected with the floater, and the other end of the pull rope winds around the plurality of wheel sets and the tension sensor and then is wound on the winding wheel; the stress condition of the floater is obtained through the tension sensor, and the pulling rope is adjusted to be retracted through the winding wheel according to the stress condition of the floater. The utility model discloses a float floats and drives the mode of stay cord rope in order to survey the water level, can survey the water level change of last hectometer to satisfy the great morning and evening tides water level monitoring of water level change completely, calculate the stay cord length change in order to calculate its precision of mode of water level in addition and can satisfy most of user demands, low cost, easy to maintain.
Description
Technical Field
The utility model relates to a morning and evening tides water level monitoring devices belongs to morning and evening tides water level monitoring technical field.
Background
In tidal monitoring, monitoring of water level changes is very important, on one hand, the invasion of seawater can be warned in advance, and on the other hand, basic reference parameters can be provided for tidal power generation. Because the tidal water level changes greatly, a common liquid level meter cannot be adopted to detect the change of the water level, and a pressure sensor is generally adopted to detect the water depth and pressure at present, so that whether the water level depth reaches an early warning value or not is judged. However, this method can only obtain basic early warning value data, and cannot realize real-time detection of the remaining depth, which is very important to know the tidal water level change in some strict environments. At present, although a corresponding resistance type or capacitance type liquid level meter can realize the detection of a higher water level, the cost is high, and the detection of the water level of tens of meters cannot be realized.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the technical problem to be solved in the utility model is to provide a morning and evening tides water level monitoring device, it can realize great water level monitoring.
The utility model aims at providing a tidal water level monitoring device which is characterized by comprising a mounting rack, a detection box, a floater and a pull rope, wherein a tension sensor and a reel are arranged in the detection box; the detection box is fixedly connected to the mounting frame, the mounting frame is fixed relative to the ground and is provided with a guide groove, and the floater is arranged in the guide groove and can move up and down along the guide groove; one end of the pull rope is connected with the floater, and the other end of the pull rope winds around the plurality of wheel sets and the tension sensor and then is wound on the winding wheel; the stress condition of the floater is obtained through the tension sensor, and the pulling rope is adjusted to be retracted through the winding wheel according to the stress condition of the floater.
Further, be equipped with sealed electric chamber, pressurization chamber, water proof chamber from top to bottom in the detection case in proper order, the reel sets up in electric chamber top, tension sensor is located electric chamber, the stay cord penetrates in proper order and links to each other with the reel behind water proof chamber, pressurization chamber, the electric chamber, the stay cord is penetrating pressurization chamber department and is installing the sealing ring.
Further, a motor is further installed above the electric cavity, and the motor drives the winding wheel to rotate forwards or backwards.
Further, the bottom of the probe box is provided with an air bag, an air bag cavity of the air bag is communicated with a pressurizing cavity through a pressure compensating pipe, and at least 3 atmospheric pressures are kept in the pressurizing cavity.
Further, an air valve is further installed above the electric cavity, an air tank is further installed in the electric cavity, high-pressure gas is stored in the air tank, the interior of the air tank is communicated with an inlet of the air valve, and an outlet of the air valve is communicated with the pressurizing cavity.
Further, a barometer and a water sensor are installed in the pressurizing cavity, the barometer is used for detecting the air pressure in the pressurizing cavity, and the water sensor is used for detecting whether the pressurizing cavity is submerged.
Furthermore, signals of the tension sensor are connected to a PLC, signals of the barometer and signals of the water sensor are input to the PLC, the air valve is an electric control valve, the control end of the air valve is connected to the PLC, and the control end of the motor is connected to the PLC; the PLC is arranged in an electrical box, and the electrical box is arranged in an electrical cavity; the wireless module and the power supply are also arranged in the electric box, and the wireless module is in wireless communication with external equipment through an antenna; an antenna box is installed on the floater, and an antenna is installed in the antenna box.
Further, the wheel set comprises a first guide wheel, a second guide wheel, a water-stop guide wheel, a detection wheel and a guide wheel; the guide wheel and the detection wheel are arranged in the electric cavity and are respectively positioned on the upper side and the lower side of the tension sensor; the water-resisting guide wheel is positioned in the water-resisting cavity, the first guide wheel is arranged at the floater, and the second guide wheel is arranged on the outer side of the detection box; the drawing sequentially bypasses the first guide wheel and the second guide wheel, enters the detection box, bypasses the water-resisting guide wheel, passes through the pressurizing cavity, sequentially bypasses the detection wheel, the tension sensor and the guide wheel, and finally winds the reel.
Furthermore, one end of the detection wheel shaft is fixedly connected with an input shaft of the encoder, and the detection wheel shaft drives the input shaft of the encoder to synchronously rotate when rotating, so that the number of rotation turns and the angle of the detection wheel are detected; the signal of encoder inserts in the PLC, through the number of turns and angle, the direction of rotation of encoder, combines the water level of detection case installation department to judge the water level of current float.
When the water level rises, the floater pulls the pull rope, the tension of the tension sensor is larger, a signal is transmitted to the PLC, the PLC controls the motor to reversely rotate to release the pull rope until the tension reaches a preset value, at the moment, the rotation number and the rotation angle of the encoder are converted into the displacement of the pull rope, and the displacement is the depth of the increase of the water level;
when the water level drops, the weight of the floater is applied to the pull rope in a gravity mode, the pull rope is pulled, once the tension value is smaller than the preset value of the tension sensor, a signal is transmitted to the PLC, the PLC controls the motor to rotate forwards to wind the pull rope until the preset tension value is reached, and the length of the wound pull rope is the depth of the water level drop;
when the water level rises, the air bag is extruded, so that the air pressure of the pressurizing cavity is increased to prevent water from entering the pressurizing cavity; and after the air pressure in the pressurization cavity is reduced, the barometer transmits a signal to the PLC, the PLC controls the air valve to be opened, and the air in the air tank enters the pressurization cavity to be pressurized, so that the air pressure in the pressurization cavity is kept within a preset range.
The utility model has the advantages that:
the utility model discloses a float floats and drives the mode of stay cord rope in order to survey the water level, can survey the water level variation of last hectometer to satisfy the great morning and evening tides water level monitoring of water level variation completely, calculate the stay cord length variation in addition through the encoder and can satisfy most of user demands with its precision of mode of calculating the water level, low cost, easy to maintain very is applicable to present morning and evening tides monitoring requirement moreover.
Drawings
Fig. 1-2 are schematic structural views of the present invention;
fig. 3-4 are schematic structural diagrams of the present invention with the vertical plate and the guide plate removed, wherein fig. 4 is a cross-sectional view of the center plane where the axis of the pressure compensating pipe is located;
5-7 are schematic views of the internal structure of the detection box;
fig. 8 is a schematic view of the structure at the flashing.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 8, the tidal water level monitoring device of the present embodiment includes a base plate 110 and a mounting frame formed by two mutually parallel vertical plates 120, wherein the two vertical plates are both mounted on the base plate 110, and the base plate 110 is mounted in water or on a shore, as long as it is relatively fixed with the ground.
Two guide plates 130 which are parallel to each other are respectively arranged on each vertical plate 120, a guide groove 131 is formed between the four guide plates 130, a floater 210 is slidably arranged in the guide groove 131, the floater 210 can float on the water surface, an antenna box 310 is arranged on the floater 210, and an antenna is arranged in the antenna box 310 and used for receiving and transmitting wireless signals;
the first rope pulling frame 220 is mounted on the floater 210, the first rope pulling frame 220 is provided with a first hinge ball 511 in a spherical rolling manner, the first rope pulling frame 220 is further provided with two first rope pulling frame plates 221 which are parallel to each other, the two first rope pulling frame plates 221 are positioned at the upper end and the lower end of the first hinge ball 511 and are respectively provided with a first rope pulling shaft 611, the first rope pulling shaft 611 is respectively sleeved with a first guide wheel 521 in a circumferential rotating manner, and one end of the rope pulling 410 passes through the two first guide wheels 521 and the first hinge ball 511 and then is assembled with the floater 210;
the other end of the pull rope 410 penetrates through the second pull rope frame 230 and then is loaded into the detection box 250, and is connected, fixed and wound with the reel 560, the second pull rope frame 230 is installed on the detection box 250, two first pull rope frame plates 231 are further installed on the second pull rope frame 230, the two second pull rope frame plates 231 are respectively assembled with the second pull rope shaft 612, a second guide wheel 522 is installed on the second pull rope shaft 612 in a circumferential rotating mode, and a second hinge ball 512 is installed on the second pull rope frame 230 in a spherical rolling mode;
the pulling rope 410 passes through the two second guide wheels 522, the second hinge ball 512 and is slidably assembled with the second hinge ball (in the length direction);
the bottom of the detection box 250 is provided with an air bag frame 240, an air bag 420 is arranged in the air bag frame 240, the top surface of the air bag 420 is fixedly bonded with the top surface of the inner side of the air bag frame 240, and a hollow air bag cavity 421 is arranged in the air bag 420;
a motor plate 263, a sealing plate 262 and a waterproof plate 261 are sequentially installed in the detection box 250 from top to bottom, the sealing plate 262 and the waterproof plate 261 respectively seal and divide the interior of the detection box 250, so that the interior of the detection box 250 is divided into an electric cavity 253, a pressurizing cavity 252 and a water-stop cavity 251 which are sealed from top to bottom, two water-stop wheel shafts 620 are installed in the water-stop cavity 251, water-stop guide wheels 530 are sleeved on the water-stop wheel shafts 620 in a circumferentially rotatable manner, and a pull rope 410 penetrates between the two water-stop guide wheels 530, so that the movement of the pull rope is guided;
a waterproof cylinder 440 is arranged on the end face, located at the pressurizing cavity 252, of the waterproof plate 261, a sealing ring 450 is arranged in the waterproof cylinder 440, and the pull rope 410 penetrates through the waterproof plate 261 and the sealing ring 450, is sealed with the waterproof cylinder and can be assembled in a sliding mode;
an air pressure gauge 322 and a water sensor 321 are arranged in the pressurizing cavity 252, the air pressure gauge 322 is used for detecting the air pressure in the pressurizing cavity 252, and the water sensor 321 is used for detecting whether the pressurizing cavity is submerged; signals of the barometer 322 and the water sensor 321 are input into a PLC, the PLC is installed in an electrical box 330, a wireless module and a power supply are also installed in the electrical box 330, the wireless module is in wireless communication with external equipment through an antenna, the wireless module of the embodiment adopts a ZigBee module, and the power supply is used for supplying power to all electric equipment, and can be a battery, an AC-DC converter and the like;
the electrical box 330 is mounted on the sealing plate 262, the air bag cavity 421 is communicated with the pressurizing cavity 252 through the pressure compensating pipe 430, and at least 3 atmospheric pressures are maintained in the pressurizing cavity 252; this arrangement prevents water in the insulating chamber 251 from entering the pressurized chamber 252 through the sealing ring, similar to the principle of inverting a cup in water, thereby preventing water from entering the pressurized chamber 253.
The sealing plate 262 is further provided with two mutually parallel detection axle plates 271, the two detection axle plates 271 are respectively assembled with the detection axle 630 in a circumferential rotating manner, the detection axle 630 is sleeved with the detection wheel 540 in a non-circumferential rotating manner, and the pull rope 410 bypasses the detection wheel 540 and can drive the detection wheel to rotate circumferentially when moving; one end of the detection axle 630 penetrates through one of the detection axle plates 271 and then is fixedly connected with an input shaft of the encoder 380, and a shell of the encoder 380 is installed on the detection axle plate 271. When the detection wheel shaft 630 rotates, the input shaft of the encoder can be driven to synchronously rotate, so that the rotation number and the rotation angle of the detection wheel shaft 630 are detected. The signal of the encoder 380 is connected into the PLC, so that the current water level of the floater can be judged by combining the rotation number, the rotation angle and the rotation direction of the encoder 380 and the water level at the installation position of the detection box.
The pull rope 410 is assembled with the reel 560 after passing around the tension sensor 340 and the guide pulley 550, the tension sensor 340 is circumferentially and rotatably sleeved on the tension shaft 341, the tension shaft 341 is circumferentially and rotatably assembled with the tension bracket 710, the tension bracket 710 is provided with the tension bracket plate 711, the tension bracket plate 711 is axially and slidably sleeved on the tension guide shaft 660, one end of the tension guide shaft 660 is installed on the tension shaft plate 272, the tension shaft plate 272 is installed on the inner wall of the detection box 250, a tension spring 810 is sleeved on the part of the tension guide shaft 660 between the tension bracket plate 711 and the tension shaft plate 272, and the tension spring 810 is used for applying elastic force to the tension bracket 710 to prevent the tension bracket 710 from moving to the tension shaft plate 272, so that the tension sensor 340 keeps tensioning the pull rope 410. Signals of the tension sensor are connected into the PLC, and the PLC judges whether the pull rope is tensioned and needs to be tightened or released according to the tension applied to the current tension sensor. The pull rope is tightened when the tension is smaller, and the pull rope is released when the tension is larger.
The guide wheel 550 is circumferentially rotatably sleeved on the guide axle 640, the guide axle 640 is mounted on the guide axle plate 274, and the guide axle plate 274 is mounted on the motor plate 263; the motor plate 263 is further provided with a motor 360, an air valve 350 and two winding wheel shaft plates 273, the two winding wheel shaft plates 273 are respectively assembled with a winding wheel shaft 650 in a circumferential rotating mode, the winding wheel 560 is sleeved on the winding wheel shaft 650 in a non-circumferential rotating mode, one end of the winding wheel shaft 650 penetrates through one winding wheel shaft plate 273 and then is assembled with a second belt wheel 572, the second belt wheel 572 is connected with a first belt wheel 571 through a belt 570 to form a belt transmission mechanism, the first belt wheel 571 is sleeved on a motor shaft 361, one end of the motor shaft 361 is installed in the motor 360, the motor 360 can drive the motor shaft to rotate circumferentially after being started, and the motor in the embodiment adopts a worm gear reducer motor which has a self-locking function on the motor shaft. The motor of this embodiment is from taking motor drive, and motor drive's control end is connected with PLC's signal end communication, and PLC can pass through motor drive control motor's running state.
The sealing plate 262 is further provided with an air tank 370, high-pressure air is stored in the air tank 370, the air tank 370 is communicated with an inlet of the air valve 350, an outlet of the air valve 350 is communicated with the pressurizing cavity 252, the air valve 350 is an electric control valve, a control end of the air valve is connected to the PLC, and therefore opening and closing of the air valve can be controlled through the PLC.
During the use, with first articulated ball, second articulated ball at same height and tension sensor be water level zero point or initial point (need add the water level that current second articulated ball corresponds) when presetting the tension value, when the water level rises, float tractive stay cord, tension sensor tension is on the large side to reach PLC with the signal, PLC control motor reversal release stay cord reaches the default to tension, the encoder pivoted number of turns, the displacement volume that the angle can be converted into the stay cord this displacement volume is exactly the degree of depth that the water level increased this moment. When the water level descends, the weight of the floater can be applied to the pull rope in a gravity mode, the pull rope can be pulled, once the tension value is smaller than the preset value of the tension sensor, a signal is transmitted to the PLC, the PLC controls the motor to rotate forward to wind the pull rope until the preset tension value is reached, and the length of the wound pull rope is the depth of the water level descending. The method is very simple and low in cost, can be suitable for water level detection of hundreds of meters, and is very suitable for monitoring environments with great tidal water level difference.
When the water level rises, the air bag is squeezed, so that the air pressure of the pressurization cavity is increased to prevent water from entering the pressurization cavity. And after the air pressure in the pressurization cavity is reduced, the barometer transmits a signal to the PLC, the PLC controls the air valve to be opened, and the air in the air tank enters the pressurization cavity to be pressurized, so that the air pressure in the pressurization cavity is kept within a preset range.
The details of the present invention are well known to those skilled in the art.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. A tidal water level monitoring device is characterized by comprising a mounting frame, a detection box (250), a floater (210) and a pull rope (410), wherein a tension sensor (340) and a winding wheel (560) are arranged in the detection box; the detection box is fixedly connected to the mounting frame, the mounting frame is fixed relative to the ground and is provided with a guide groove (131), and the floater is arranged in the guide groove and can move up and down along the guide groove; one end of the pull rope is connected with the floater, and the other end of the pull rope winds around the plurality of wheel sets and the tension sensor and then is wound on the winding wheel; the stress condition of the floater is obtained through the tension sensor, and the pulling rope is adjusted to be retracted through the winding wheel according to the stress condition of the floater.
2. The tidal water level monitoring device according to claim 1, wherein a sealed electric cavity (253), a pressurizing cavity (252) and a water-proof cavity (251) are sequentially arranged in the detection box from top to bottom, the reel is arranged above the electric cavity, the tension sensor is positioned in the electric cavity, the pull rope sequentially penetrates through the water-proof cavity, the pressurizing cavity and the electric cavity and then is connected with the reel, and a sealing ring (450) is arranged at the position where the pull rope penetrates through the pressurizing cavity.
3. The tidal water level monitoring device of claim 2, wherein a motor (360) is further mounted above the electrical cavity, and the motor drives the reel to rotate forward or backward.
4. A tidal water level monitoring device according to claim 3, wherein the bottom of the detection tank is provided with an air bag (420), the air bag cavity (421) of the air bag is communicated with a pressurizing cavity through a pressure compensating pipe (430), and at least 3 atmospheric pressures are maintained in the pressurizing cavity.
5. The tidal water level monitoring device according to claim 4, wherein a gas valve (350) is further installed above the electrical cavity, a gas tank (370) is further installed in the electrical cavity, high-pressure gas is stored in the gas tank, the interior of the gas tank is communicated with an inlet of the gas valve, and an outlet of the gas valve is communicated with the pressurization cavity.
6. The tidal water level monitoring device of claim 5, wherein an air pressure gauge (322) for detecting air pressure in the pressurizing chamber and a water sensor (321) for detecting whether the pressurizing chamber is submerged are installed in the pressurizing chamber.
7. The tidal water level monitoring device according to claim 6, wherein the signals of the tension sensor are connected to a PLC, the signals of the barometer and the water sensor are input to the PLC, the air valve is an electric control valve, the control end of the air valve is connected to the PLC, and the control end of the motor is connected to the PLC; the PLC is mounted within an electrical box (330) mounted to an electrical cavity; the wireless module and the power supply are also arranged in the electric box, and the wireless module is in wireless communication with external equipment through an antenna; an antenna box is installed on the floater, and an antenna is installed in the antenna box.
8. The tidal water level monitoring device of claim 7, wherein the wheel set comprises a first guide wheel (521), a second guide wheel (522), a water-stop guide wheel (530), a detection wheel (540), and a guide wheel (550); the guide wheel and the detection wheel are arranged in the electric cavity and are respectively positioned on the upper side and the lower side of the tension sensor; the water-resisting guide wheel is positioned in the water-resisting cavity, the first guide wheel is arranged at the floater, and the second guide wheel is arranged on the outer side of the detection box; the stay cord (410) is wound around the first guide wheel and the second guide wheel in sequence, enters the detection box, is wound around the water-resisting guide wheel, passes through the pressurizing cavity, is wound around the detection wheel, the tension sensor and the guide wheel in sequence, and is finally wound on the reel.
9. The tidal water level monitoring device according to claim 8, wherein the detection wheel is provided with a detection wheel shaft, one end of the detection wheel shaft is fixedly connected with the input shaft of the encoder (380), and the detection wheel shaft drives the input shaft of the encoder to synchronously rotate when rotating, so that the rotation number and the rotation angle of the detection wheel are detected; the signal of encoder inserts in the PLC, through the number of turns and angle, the direction of rotation of encoder, combines the water level of detection case installation department to judge the water level of current float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023217053.9U CN213748429U (en) | 2020-12-28 | 2020-12-28 | Tidal water level monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023217053.9U CN213748429U (en) | 2020-12-28 | 2020-12-28 | Tidal water level monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN213748429U true CN213748429U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023217053.9U Active CN213748429U (en) | 2020-12-28 | 2020-12-28 | Tidal water level monitoring device |
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|---|---|
| CN (1) | CN213748429U (en) |
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2020
- 2020-12-28 CN CN202023217053.9U patent/CN213748429U/en active Active
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