CN114993958A - Vertical line distribution measuring device for sand content of river - Google Patents
Vertical line distribution measuring device for sand content of river Download PDFInfo
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- CN114993958A CN114993958A CN202210480152.0A CN202210480152A CN114993958A CN 114993958 A CN114993958 A CN 114993958A CN 202210480152 A CN202210480152 A CN 202210480152A CN 114993958 A CN114993958 A CN 114993958A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- Y02A90/30—Assessment of water resources
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Abstract
The invention provides a device for measuring the vertical distribution of the sand content of a river, which comprises a photoelectric quantification component of the sand content and a synchronous adjusting component of the vertical position of a shading sleeve. The photoelectric quantification part for the sand content comprises a plurality of laser lamps, a plurality of photoelectric plates, a plurality of current meters and a shading sleeve. The shading sleeve vertical position synchronous adjusting component comprises a floating ball, a lifting rod, a conductive sleeve, a threaded rod, a motor and a control circuit. After the light that the laser lamp sent penetrated into the water that contains sand, the light intensity that makes to project the photoelectric panel is different because of the sand content difference of each position of plumb line, makes the electric current variation in size that the photoelectric panel produced then, can calculate the plumb line distribution condition of river sand content according to the electric current size. The synchronous adjusting part for the vertical position of the shading sleeve can ensure that the bottom of the shading sleeve is level with the water surface all the time and can shield light above the water surface all the time, thereby ensuring that the device can continuously measure the change of the vertical distribution of the sand content of the river in the water.
Description
Technical Field
The invention relates to the technical field of river sand content monitoring, in particular to a device for measuring the vertical distribution of river sand content.
Background
The sand content generally refers to the mass of dry sand contained in a unit volume of muddy water and is one of the important hydrological parameters. The river sand content monitoring has great significance for the construction of water conservancy and hydropower engineering, the development and utilization of water resources, the treatment of water and soil loss, the water taking and using of industrial and agricultural industries, the hydrological forecast and the like. At present, the general method for measuring the sand content of rivers in a hydrology is as follows: firstly collecting muddy water with a certain volume, standing for precipitation, then taking out precipitated silt, drying the silt, weighing the mass of the dry sand, and finally dividing the mass of the dry sand by the volume of the muddy water to obtain the sand content. This method has many drawbacks, such as:
(1) the average sand content of a certain small space region is measured, the vertical distribution condition of the sand content cannot be obtained, and the vertical distribution of the sand content has important application in hydraulic engineering design.
(2) The change of the vertical distribution of the sand content of the river cannot be continuously measured for a long time.
(3) From the collection to the analysis of sample, the actual operation cycle is long, the process is loaded down with trivial details, and manpower and materials consume a lot.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for measuring the vertical line distribution of the sand content of a river, which comprises a photoelectric quantification part of the sand content and a vertical position synchronous adjustment part of a shading sleeve, wherein
The sand content photoelectric quantification component comprises a plurality of laser lamps, a plurality of photoelectric plates, a plurality of ampere meters and shading sleeves, wherein the plurality of laser lamps are sequentially arranged from top to bottom, the plurality of photoelectric plates and the plurality of laser lamps are oppositely arranged in a one-to-one correspondence manner, and each photoelectric plate is connected with one ampere meter in series;
the shading sleeve vertical position synchronous adjusting component comprises a floating ball, a lifting rod, a conductive sleeve, a threaded rod, a motor and a control circuit, wherein one end of the lifting rod is fixedly connected with the floating ball, the other end of the lifting rod is divided into a first conductive rod, an insulating rod and a second conductive rod which are sequentially connected, the conductive sleeve is sleeved on the lifting rod in a sliding mode, and the conductive sleeve is connected with the shading sleeve; one end of the threaded rod is connected with the conductive sleeve and is insulated from the conductive sleeve, the threaded rod can drive the conductive sleeve to slide on the lifting rod under the driving of the motor, and the control circuit is connected with the motor, the first conductive rod, the second conductive rod and the conductive sleeve.
Optionally, the sand content photoelectric quantification part further comprises a photoelectric plate placing cylinder, the photoelectric plate placing cylinder is vertically placed, the photoelectric plate placing cylinder is sequentially provided with a plurality of photoelectric holes from top to bottom, the photoelectric plates are installed in the photoelectric holes in a one-to-one correspondence manner, the ammeter is arranged outside the photoelectric plate placing cylinder, and a wire connecting the ammeter and the photoelectric plates penetrates through the photoelectric plate placing cylinder.
Optionally, the photoelectric quantification part of sand content still includes the laser lamp and lays a section of thick bamboo, and the laser lamp is laid a section of thick bamboo and is vertically placed, and the laser lamp is laid on the section of thick bamboo from last to having seted up a plurality of laser holes down in proper order, and a plurality of laser lamps are installed at a plurality of laser downtheholely one-to-one, and the laser lamp is laid a section of thick bamboo outside slip cap and is being established the shading sleeve.
Optionally, the lower parts of the photoelectric plate placing cylinder and the laser lamp placing cylinder are fixedly connected through a connecting rod.
Optionally, several laser lamps are connected in parallel.
Optionally, the sand content photoelectric quantization unit further includes a recording circuit, the recording circuit includes a first power supply, a first switch and a video recorder, the first power supply, the first switch and the video recorder are connected in series, and the video recorder faces the plurality of ammeters; a plurality of laser lamps connected in parallel are also connected in parallel with the video recorder.
Optionally, the control circuit includes a second power supply, a second switch, a first iron spring switch, a first electromagnet, a first protection resistor, a second iron spring switch, a second electromagnet, and a second protection resistor, where the first iron spring switch and the first protection resistor are connected in series between one electrode of the motor and a negative electrode of the second power supply, and the second iron spring switch and the second protection resistor are connected in series between the other electrode of the motor and a negative electrode of the second power supply; the positive electrode of the second power supply is connected with the conductive sleeve through a second switch; one end of the first electromagnet is connected with the first conducting rod, the other end of the first electromagnet is connected with a wire connected with the first iron spring switch and the motor, and the magnetic pole of the first electromagnet faces the first iron spring switch; one end of the second electromagnet is connected with the second conducting rod, the other end of the first electromagnet is connected to a conducting wire connected with the second iron spring switch and the motor, and the magnetic pole of the second electromagnet faces the second iron spring switch.
Optionally, the shading sleeve vertical position synchronous adjustment part still includes support, polygon gag lever post, first drive gear and second drive gear, and the support is fixed to be set up, and the motor is installed on the support, the coaxial fixed connection of pivot of second drive gear and motor, first drive gear with the meshing of second drive gear, the middle part of first drive gear has the screw hole, the threaded rod spiro union in the threaded hole, the one end fixed connection polygon gag lever post of threaded rod, the polygon gag lever post has been seted up to the upper end of support, and the polygon gag lever post slides and inserts and locates in the polygon gag lever post downthehole.
Optionally, the shading sleeve vertical position synchronous adjustment component further comprises a water level monitoring barrel, the water level monitoring barrel is divided into a front half barrel body and a rear half barrel body, the rear half barrel body is provided with a plurality of water inlet and outlet holes, and the floating ball is placed in the water level monitoring barrel.
Optionally, the shading sleeve vertical position synchronous adjustment component further comprises a pulley block and an insulating rope, the pulley block is fixedly arranged, the insulating rope is wound on the pulley block, one end of the insulating rope is fixedly connected with the conductive sleeve, and the other end of the insulating rope is fixedly connected with the shading sleeve.
Compared with the prior art, the invention has the beneficial effects that:
(1) when the device is used, the laser lamps and the photoelectric panels are vertically arranged from the position above the water surface to the position below the bed surface in a one-to-one correspondence mode, the bottom of the light shielding sleeve is flush with the water surface, the light shielding sleeve can shield the light of the laser lamps above the water surface, and the photoelectric panels above the water surface are prevented from generating current readings, so that the interval and the position of the ammeter below the water surface can be conveniently judged; only the light rays emitted by the laser lamps below the water surface and above the bed surface can be emitted into the sand-containing water body, and the sand content of the water body at each position of the vertical line is different, so that the light intensity projected to each photoelectric plate is different, then the current generated by each photoelectric plate after absorbing the light rays projected to the surface of each photoelectric plate is different, each branch current is displayed by each corresponding ammeter, and the vertical line distribution condition of the sand content of the river can be calculated according to the current;
(2) when the water level of the river channel rises, the floating ball can drag the lifting rod to enable the second conducting rod to be in contact with the conducting sleeve, so that the control circuit controls the motor to rotate, the threaded rod is driven to rotate, the conducting sleeve is driven to move upwards, the conducting sleeve is connected with the shading sleeve, the shading sleeve is driven to move upwards, when the conducting sleeve is lifted to be completely in contact with the insulating rod, the control circuit is disconnected, and the motor stops rotating; the floating ball rises by a distance equal to the upward moving distance of the conductive sleeve and also equal to the upward moving distance of the shading sleeve, so that the bottom of the shading sleeve is always level with the water level, light above the water level can be shielded all the time, and the device can continuously measure the change of the vertical distribution of the sand content of the river in water.
Drawings
Fig. 1 is a schematic structural view of a vertical distribution measuring device for the sand content of a river provided by the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only one embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The present invention will be further described with reference to the following examples and drawings, but the invention is not limited thereto.
Referring to fig. 1, a vertical distribution measuring device for river sand content disclosed in an embodiment of the present invention includes a photoelectric quantification unit 1 for sand content and a vertical position synchronization adjustment unit 2 for light shielding sleeves.
Specifically, the sand content photoelectric quantification apparatus 1 of the present embodiment includes a plurality of laser lamps 11, a plurality of photoelectric plates 12, a plurality of ammeters 13, a light shielding sleeve 14, a photoelectric plate placement cylinder 15, a laser lamp placement cylinder 16, and a recording circuit 17. Wherein, a plurality of photoelectric boards 12 are arranged from last to down in proper order, and the photoelectric board is laid a section of thick bamboo 15 and is vertically placed, and the photoelectric board is laid on a section of thick bamboo 15 from last to having seted up a plurality of photoelectricity holes down in proper order, and a plurality of photoelectric boards 12 one-to-one ground are installed in a plurality of photoelectricity holes, and an ampere meter 13 is all established ties to each photoelectric board 12, and ampere meter 13 arranges in the outside that a section of thick bamboo 15 was laid to the photoelectric board, and the inside that a section of thick bamboo 15 was laid to the photoelectric board is passed to the wire of connecting ampere meter and photoelectric board 12.
A plurality of laser lamps 11 are arranged from last to down in proper order, and the laser lamp is laid a section of thick bamboo 16 and is vertically placed, and the laser lamp is laid and has been seted up a plurality of laser holes on a section of thick bamboo 16 from last to down in proper order, and a plurality of laser lamps 11 are installed downtheholely at a plurality of laser one-to-ones. The photoelectric plates 12 and the laser lamps 11 are arranged oppositely in a one-to-one correspondence mode, and laser emitted by the laser lamps 11 can irradiate the photoelectric plates 12 in a one-to-one correspondence mode. When laser emitted by the laser lamp 11 passes through the water to be measured and irradiates the photoelectric plate 12, the photoelectric plate 12 can absorb corresponding light and generate current, and the ammeter 13 displays the magnitude of the current generated by the corresponding photoelectric plate 12, under the condition that the light intensity is equal, when the light passes through the water with different sand contents, the lost light energy is different, namely, the sand content changes along the vertical line, so that the light transmittance of the sand-containing water is different along the vertical line, the readings generated by the ammeters 13 are different, and the sand content which is difficult to measure can be converted into an electric signal which is easy to measure and is output.
It should be noted that the lower portions of the photoelectric plate placing cylinder 15 and the laser lamp placing cylinder 16 of the present embodiment are fixedly connected by a connecting rod.
Further, the recording circuit 17 includes a first power source 171, a first switch 172, and a video recorder 173, the first power source 171, the first switch 172, and the video recorder 173 are connected in series, and the video recorder 173 faces the ammeters 13; several laser lamps 11 connected in parallel are also connected in parallel with the video recorder 173. The plurality of laser lamps 11 have the same photoelectric characteristics and need to be independently connected in parallel to the power supply to ensure that the light intensities emitted by the laser lamps 11 are equal. The video recorder 173 is connected in parallel to the laser light 11. When the sand content is converted into the electrical signal output of the ammeter 13, the recorder 173 can synchronously record the reading of each ammeter 13 in real time, so that the vertical distribution of the sand content can be converted from the reading of the ammeter 13 at a later stage. It should be noted that the numbers of the ammeters 13 are required to correspond to the vertical positions of the photoelectric plates 12 one by one, so that when the readings of the ammeters 13 are read, the vertical positions of the photoelectric plates 12 are also known, that is, the vertical positions corresponding to the sand content measuring points are known. After the readings of each ammeter 13 are recorded, the relationship between the sand content and the readings of the ammeter 13 of the device is determined by utilizing the existing sand content measuring instrument or method, and then the recorded readings of the ammeter 13 can be converted into the sand content according to the determined relationship, so that the vertical distribution condition of the sand content is obtained.
Further, the light shielding sleeve 14 is slidably sleeved outside the laser lamp 11, and when the light shielding sleeve 14 is used, the bottom end of the light shielding sleeve 14 needs to be arranged at a position just contacting the water surface, so that the upper limit of the vertical position for measuring the sand content is limited. That is, the light shielding sleeve 14 can shield all the laser above the water surface, the photoelectric plate 12 above the water surface does not generate current, and the reading of the corresponding ammeter 13 is zero, so that the ammeter 13 above the water surface can be distinguished from the ammeter below the water surface from the reading. The lower limit of the vertical position of the sand content measurement is the surface of the riverbed, so the lower limit of the vertical position of the sand content measurement is not required to be limited by an additional member. The light emitted by the laser lamp 11 buried in the bed sand layer can not irradiate the photoelectric plate 12 due to the blocking of the sand, so that the loop has no current, and the reading of the ammeter 13 is zero.
Furthermore, the shading sleeve vertical position synchronous adjusting component 2 of the embodiment comprises a floating ball 21, a lifting rod 22, a conductive sleeve 23, a threaded rod 24, a motor 25, a control circuit 26, a bracket 27, a polygonal limiting rod 28, a first transmission gear 29, a second transmission gear 210, a water level monitoring cylinder 211, a pulley block 212 and an insulating rope 213. The floating ball 21 is fixedly connected to one end of the lifting rod 22, the other end of the lifting rod 22 is divided into a first conducting rod, an insulating rod and a second conducting rod which are sequentially connected, the conducting sleeve 23 is sleeved on the lifting rod 22 in a sliding mode, the conducting sleeve 23 is connected with the shading sleeve 14 through an insulating rope 213, namely, the pulley block 212 is fixedly arranged, the insulating rope 213 is wound on the pulley block 212, one end of the insulating rope 213 is fixedly connected with the conducting sleeve 23, and the other end of the insulating rope 213 is fixedly connected with the shading sleeve 14. One end of the threaded rod 24 is connected with the conductive sleeve 23 and is insulated from the conductive sleeve 23, the threaded rod 24 can drive the conductive sleeve 23 to slide on the lifting rod 22 under the driving of the motor 25, and the control circuit 26 is connected with the motor 25, the first conductive rod, the second conductive rod and the conductive sleeve 23. When the water level of the river channel rises, the floating ball 21 drags the lifting rod 22 to enable the second conducting rod to be in contact with the conducting sleeve 23, so that the control circuit 26 controls the motor 25 to rotate, the threaded rod 24 is driven to rotate, the conducting sleeve 23 is driven to move upwards, the conducting sleeve 23 is connected with the shading sleeve 14, the shading sleeve 14 is driven to move upwards, when the conducting sleeve 23 is lifted to be completely in contact with the insulating rod, the control circuit 26 is disconnected, and the motor stops rotating; the ascending distance of the floating ball 21 is equal to the ascending distance of the conductive sleeve 23 and the ascending distance of the shading sleeve 14, so that the bottom of the shading sleeve 14 is always level with the water surface, the light above the water surface can be shielded all the time, and the device can continuously measure the change of the vertical distribution of the sand content of the river in the water.
Further, the control circuit 26 of the present embodiment includes a second power supply 261, a second switch 262, a first ferrous spring switch 263, a first electromagnet 264, a first protection resistor 265, a second ferrous spring switch 266, a second electromagnet 267, and a second protection resistor 268, where the first ferrous spring switch 263 and the first protection resistor 265 are connected in series between one electrode of the motor 25 and the negative electrode of the second power supply 261, and the second ferrous spring switch 266 and the second protection resistor 268 are connected in series between the other electrode of the motor 25 and the negative electrode of the second power supply 261; the positive pole of the second power source 261 is connected to the conductive sleeve 23 through the second switch 262; one end of the first electromagnet 264 is connected with the first conducting rod, the other end of the first electromagnet 264 is connected with a conducting wire connected with the first ferrous spring switch 263 and the motor 25, and the magnetic pole of the first electromagnet 264 faces the first ferrous spring switch 263; one end of the second electromagnet 267 is connected to the second conductive rod, the other end of the first electromagnet 264 is connected to a conductive wire connecting the second ferrous spring switch 266 and the motor 25, and a magnetic pole of the second electromagnet 267 faces the second ferrous spring switch 266. When the river water level rises, the floating ball 21 can pull the lifting rod 22 to enable the second conductive rod to be in contact with the conductive sleeve 23, so that a circuit from the second conductive rod, the second electromagnet 267, the second iron spring switch 266, the second protection resistor 268 and the second power supply 261 to the conductive sleeve 23 is conducted, at the moment, the second electromagnet 267 can adsorb the second iron spring switch 266 to enable the second iron spring switch 266 to be disconnected, current flows into the motor 25 from the second electromagnet 267 and flows into the second power supply 261 after passing through the first iron spring switch 263 and the first protection resistor 265, and at the moment, the motor 25 rotates forwards to enable the conductive sleeve 23 to rise. When the river course water level descends, the floater 21 can drive the lifter 22 to descend, make first conducting rod and conductive sleeve 23 contact, thereby make first conducting rod, first electro-magnet 264, first iron spring switch 263, first protection resistance 265, the circuit of second power 261 to conductive sleeve 23 switches on, first electro-magnet 264 can adsorb first iron spring switch 263 and make first iron spring switch 263 disconnection this moment, thereby make the electric current flow into motor 25 from first electro-magnet 264, flow into second power 261 behind two iron spring switches and two protection resistances, the reversal of motor 25 makes conductive sleeve 23 descend this moment. It is noted that in both of these processes, when the conductive sleeve 23 is brought into full contact with the insulating rod, the circuit is broken and the motor 25 stops rotating. In the process of the movement of the conductive sleeve 23, the rod extending out of the conductive sleeve 23 can pull the insulating string to synchronously lift the shading sleeve 14, so that the bottom end of the shading sleeve 14 is just contacted with the water surface all the time.
Furthermore, the bracket 27 of this embodiment is fixedly arranged, the motor 25 is installed on the bracket 27, the second transmission gear 210 is coaxially and fixedly connected with the rotating shaft of the motor 25, the first transmission gear 29 is rotatably installed on the bracket 27, the first transmission gear 29 is meshed with the second transmission gear 210, a threaded hole is formed in the middle of the first transmission gear 29, the threaded rod is screwed in the threaded hole, one end of the threaded rod 24 is fixedly connected with the polygonal limiting rod 28, the upper end of the bracket 27 is provided with the polygonal limiting hole, and the polygonal limiting rod 28 is slidably inserted in the polygonal limiting hole. The precision of the transmission can be improved by the gear engagement, and the threaded rod 24 can be prevented from rotating by the limiting action of the polygonal limiting rod 28, so that the threaded rod 24 is ensured to move up and down.
Furthermore, the fixed setting of water level monitoring section of thick bamboo 211 of this embodiment divide into first half stack shell and latter half stack shell, and first half stack shell is the upstream face, and latter half stack shell is the surface of a water back, has seted up a plurality of business turn over water holes on the latter half stack shell, and floater 21 is placed in water level monitoring section of thick bamboo 211. The water inlet and outlet holes are densely distributed on the back water surface of the rear half cylinder body of the cylinder wall of the water level monitoring cylinder, so that the phenomenon that the water flow energy is converted into potential energy to cause the water level in the water level monitoring cylinder to be higher can be avoided. The number of the water inlet and outlet holes is enough, so that the sensitivity of the water level monitoring cylinder to the water level change of the river channel can be increased. The wall of the water level monitoring barrel is provided with a certain thickness, the aperture of the water inlet and outlet hole is small, and the hole of the water inlet and outlet hole is long and thin, so that water level vibration in the water level monitoring barrel caused by water level fluctuation of a river channel can be weakened, and vibration of the floating ball 21 is weakened.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The device for measuring the distribution of the sand content of the river by the vertical line is characterized by comprising a photoelectric quantification part of the sand content and a synchronous adjusting part of the vertical position of a shading sleeve, wherein
The sand content photoelectric quantification component comprises a plurality of laser lamps, a plurality of photoelectric plates, a plurality of ampere meters and a shading sleeve, wherein the plurality of laser lamps are sequentially arranged from top to bottom, the photoelectric plates and the laser lamps are oppositely arranged in a one-to-one correspondence manner, and each photoelectric plate is connected with one ampere meter in series;
the shading sleeve vertical position synchronous adjusting component comprises a floating ball, a lifting rod, a conductive sleeve, a threaded rod, a motor and a control circuit, wherein one end of the lifting rod is fixedly connected with the floating ball, the other end of the lifting rod is divided into a first conductive rod, an insulating rod and a second conductive rod which are sequentially connected, and the conductive sleeve is sleeved on the lifting rod in a sliding mode; the one end of threaded rod with conductive sleeve connects and with conductive sleeve is insulating, the threaded rod can drive under the drive of motor conductive sleeve is in slide on the lifter, control circuit connects the motor first conducting rod the second conducting rod with conductive sleeve.
2. The vertical line distribution measuring device for sand content in a river according to claim 1, wherein the photoelectric quantification part for sand content further comprises a photoelectric plate placing cylinder, the photoelectric plate placing cylinder is vertically placed, a plurality of photoelectric holes are sequentially formed in the photoelectric plate placing cylinder from top to bottom, the plurality of photoelectric plates are correspondingly installed in the plurality of photoelectric holes one by one, the ammeter is arranged outside the photoelectric plate placing cylinder, and a lead connecting the ammeter and the photoelectric plates passes through the inside of the photoelectric plate placing cylinder.
3. The device for measuring the distribution of the sand content in the vertical line of the river as claimed in claim 2, wherein the photoelectric quantification means further comprises a laser lamp placing cylinder, the laser lamp placing cylinder is vertically disposed, a plurality of laser holes are sequentially formed in the laser lamp placing cylinder from top to bottom, a plurality of laser lamps are correspondingly disposed in the laser holes, and the light shielding sleeve is slidably sleeved outside the laser lamp placing cylinder.
4. The vertical distribution measuring device for the sand content in a river according to claim 3, wherein the photoelectric plate placing cylinder and the lower part of the laser lamp placing cylinder are fixedly connected through a connecting rod.
5. The vertical distribution measuring device for the sand content of a river as claimed in claim 1, wherein a plurality of said laser lamps are connected in parallel.
6. The vertical distribution measuring device for the sand content of a river as claimed in claim 5, wherein the photoelectric quantification part for the sand content further comprises a recording circuit, the recording circuit comprises a first power supply, a first switch and a video recorder, the first power supply, the first switch and the video recorder are connected in series, and the video recorder faces to a plurality of the current meters; and a plurality of parallel laser lamps are also connected with the video recorder in parallel.
7. The vertical river sand content distribution measuring device according to claim 1, wherein the control circuit comprises a second power supply, a second switch, a first ferrous spring switch, a first electromagnet, a first protection resistor, a second ferrous spring switch, a second electromagnet and a second protection resistor, wherein the first ferrous spring switch and the first protection resistor are connected in series between one electrode of the motor and the negative pole of the second power supply, and the second ferrous spring switch and the second protection resistor are connected in series between the other electrode of the motor and the negative pole of the second power supply; the positive electrode of the second power supply is connected with the conductive sleeve through the second switch; one end of the first electromagnet is connected with the first conducting rod, the other end of the first electromagnet is connected with a wire connected with the first iron spring switch and the motor, and the magnetic pole of the first electromagnet faces the first iron spring switch; one end of the second electromagnet is connected with the second conducting rod, the other end of the first electromagnet is connected with the second iron spring switch and a conducting wire connected with the motor, and the magnetic pole of the second electromagnet faces the second iron spring switch.
8. The device for measuring the distribution of the vertical lines of the sand content in the river according to claim 7, wherein the vertical position synchronization adjustment component of the light shielding sleeve further comprises a support, a polygonal limiting rod, a first transmission gear and a second transmission gear, the support is fixedly arranged, the motor is installed on the support, the second transmission gear is coaxially and fixedly connected with a rotating shaft of the motor, the first transmission gear is meshed with the second transmission gear, a threaded hole is formed in the middle of the first transmission gear, the threaded rod is screwed in the threaded hole, one end of the threaded rod is fixedly connected with the polygonal limiting rod, a polygonal limiting hole is formed in the upper end of the support, and the polygonal limiting rod is slidably inserted in the polygonal limiting hole.
9. The device for measuring the vertical distribution of the sand content in a river according to claim 1, wherein the vertical position synchronization adjustment component of the light shielding sleeve further comprises a water level monitoring cylinder, the water level monitoring cylinder is divided into a front half cylinder body and a rear half cylinder body, the rear half cylinder body is provided with a plurality of water inlet and outlet holes, and the floating ball is placed in the water level monitoring cylinder.
10. The device for measuring the distribution of the vertical lines of the sand content in the river according to claim 1, wherein the means for synchronously adjusting the vertical position of the light shielding sleeve further comprises a pulley block and an insulating rope, the pulley block is fixedly arranged, the insulating rope is wound around the pulley block, one end of the insulating rope is fixedly connected with the conductive sleeve, and the other end of the insulating rope is fixedly connected with the light shielding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480152.0A CN114993958A (en) | 2022-05-05 | 2022-05-05 | Vertical line distribution measuring device for sand content of river |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210480152.0A CN114993958A (en) | 2022-05-05 | 2022-05-05 | Vertical line distribution measuring device for sand content of river |
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| CN114993958A true CN114993958A (en) | 2022-09-02 |
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| CN202210480152.0A Pending CN114993958A (en) | 2022-05-05 | 2022-05-05 | Vertical line distribution measuring device for sand content of river |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858676A (en) * | 2022-05-05 | 2022-08-05 | 武汉大学 | Device for synchronously adjusting vertical position of suspension along with water level change |
| CN114858676B (en) * | 2022-05-05 | 2024-06-28 | 武汉大学 | Device for synchronously adjusting vertical position of suspended object along with water level change |
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2022
- 2022-05-05 CN CN202210480152.0A patent/CN114993958A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858676A (en) * | 2022-05-05 | 2022-08-05 | 武汉大学 | Device for synchronously adjusting vertical position of suspension along with water level change |
| CN114858676B (en) * | 2022-05-05 | 2024-06-28 | 武汉大学 | Device for synchronously adjusting vertical position of suspended object along with water level change |
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