CN114858676A

CN114858676A - Device for synchronously adjusting vertical position of suspension along with water level change

Info

Publication number: CN114858676A
Application number: CN202210480120.0A
Authority: CN
Inventors: 潘云文; 夏军强; 周美蓉; 邓珊珊; 李启杰
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-05
Anticipated expiration: 2042-05-05

Abstract

The invention provides a device for synchronously adjusting the vertical position of a suspension along with the change of water level, which comprises a floating ball, a lifting rod, a suspension, a threaded rod, a motor and a control circuit, wherein the floating ball is arranged on the lifting rod; 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 to drive the conducting sleeve to move upwards, the conducting sleeve is connected with the suspension object to drive the suspension object 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 ascending distance of the floating ball is equal to the upward moving distance of the conductive sleeve and the upward moving distance of the suspension, so that the bottom of the suspension is always level with the water level.

Description

Device for synchronously adjusting vertical position of suspension along with water level change

Technical Field

The invention relates to the technical field of river channel hydraulic parameter monitoring, in particular to a device for synchronously adjusting the vertical position of a suspension along with water level change.

Background

The water depth and the sand content are important hydrological parameters, and the monitoring of the hydrological parameters has great significance for the construction of water conservancy and hydropower engineering, the development and utilization of water resources, the water taking and using of industry and agriculture, the navigation of ships, hydrological forecast and the like. Light is often used in the design of water depth or sand content measuring devices because of its high speed, straight line propagation characteristics and its ability to not affect the physical properties of the body of water. The water level of the natural river channel changes from moment to moment under the influence of a plurality of random factors such as natural geography, regional climate, human survival and the like. Therefore, in the process of designing the water depth or sand content measuring device by using the optical principle, how to adjust and control the upper limit of the vertical measuring position of the designed device in time according to the water level change of the river channel must be considered. To achieve this, it is most straightforward to arrange a light-tight suspension, such as a light-tight sleeve, above the water surface to block the light emitted by the light-emitting part of the device above the water surface. However, when the water level of the natural river changes constantly, it is not easy to make the opaque suspension block only the light emitted from the part above the water level of the light emitting part of the device. In view of the above, it is desirable to provide a device for adjusting the vertical position of a light-proof suspension (such as a light-shielding sleeve) with the water level variation.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a device for synchronously adjusting the vertical position of a suspension along with the change of water level, which 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 manner; the conductive sleeve is used for being connected with a suspension; 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 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, 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 device of the vertical position of synchronous adjustment hanging object along with the water level change still includes the support, the polygon gag lever post, first drive gear and second drive gear, the support is fixed to be set up, the motor is installed on the support, the coaxial fixed connection of pivot of second drive gear and motor, first drive gear meshes with second drive gear, the middle part of first drive gear has the screw hole, the threaded rod is inserted and is located 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, the polygon gag lever post slides and inserts and locates in the polygon gag lever post.

Optionally, the device for synchronously adjusting the vertical position of the suspension along with the change of the water level 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.

Optionally, the device for synchronously adjusting the vertical position of the suspension object along with the water level change 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 suspension object.

Compared with the prior art, the invention has the beneficial effects that:

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; and the ascending distance of the floating ball is equal to the upward moving distance of the conductive sleeve and the upward moving distance of the light-proof suspension, so that the bottom of the light-proof suspension is always level with the water level, and the upper limit of the vertical measuring position of the river channel hydraulic parameter measuring device can be determined subsequently.

Drawings

FIG. 1 is a schematic structural diagram of the device for synchronously adjusting the vertical position of a suspended object along with the change of water level.

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 may be combined with each other without conflict.

The invention is further described with reference to the following specific examples and figures, but is not to be construed as being limited thereto.

Referring to fig. 1, the present embodiment discloses a device for measuring the vertical distribution of sand content in a river, which includes a photoelectric quantification device 1 for sand content and a device 2 for synchronously adjusting the vertical position of a suspended object along with the change of water level.

Specifically, the photoelectric quantification apparatus 1 for sand content of the present embodiment includes a plurality of laser lamps 11, a plurality of photoelectric panels 12, a plurality of ammeters 13, a light shielding sleeve 14, a photoelectric panel placing cylinder 15, a laser lamp placing 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. The device 2 for synchronously adjusting the vertical position of the suspended object along with the change of the water level 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. Wherein, the one end fixed connection floater 21 of lifter 22, the other end of lifter 22 divide into consecutive first conducting rod, insulator spindle and second conducting rod, and the cover is established on lifter 22 in the slip of conductive sleeve 23, and conductive sleeve 23 is connected through insulating rope 213 with shading sleeve 14, and the assembly pulley 212 is fixed to be set up promptly, and insulating rope 213 winds and establishes on assembly pulley 212, and the one end fixed connection conductive sleeve 23 of insulating rope 213, the other end fixed connection shading sleeve 14 of insulating rope 213. One end of the threaded rod 24 is connected with the conductive sleeve 23 and 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 electrically 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 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 iron spring switch 263 and the motor 25, and the magnetic pole of the first electromagnet 264 faces the first iron 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 water level of the river channel rises, the floating ball 21 drags the lifting rod 22, so that the second conducting rod is in contact with the conductive sleeve 23, the circuit from the second conducting 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 adsorbs the second iron spring switch 266 to disconnect the second iron spring switch 266, so that the current flows into the motor 25 from the second electromagnet 267, 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 positively to enable the conductive sleeve 23 to rise. When the river water level descends, the floating ball 21 can drive the lifting rod 22 to descend, so that the first conducting rod is in contact with the conducting sleeve 23, thereby the first conducting rod, the first electromagnet 264, the first iron spring switch 263, the first protection resistor 265 and the circuit from the second power supply 261 to the conducting sleeve 23 are conducted, at the moment, the first electromagnet 264 can adsorb the first iron spring switch 263 to disconnect the first iron spring switch 263, so that the current flows into the motor 25 from the first electromagnet 264, the current flows into the second power supply 261 after passing through the second iron spring switch and the second protection resistor, and at the moment, the motor 25 reversely rotates to make the conducting sleeve 23 descend. 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 light shielding sleeve 14, so that the bottom end of the light shielding sleeve 14 is just contacted with the water surface all the time.

Furthermore, the bracket 27 of the embodiment is fixedly arranged, the motor 25 is mounted 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 mounted 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 inserted into the threaded hole, one end of the threaded rod 24 is fixedly connected with the polygonal limiting rod 28, a polygonal limiting hole is formed in the upper end of the bracket 27, and the polygonal limiting rod 28 is slidably inserted into 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 water level monitoring cylinder 211 of this embodiment is divided into a front half cylinder and a rear half cylinder, the front half cylinder is a water-facing surface, the rear half cylinder is a water-backing surface, the rear half cylinder is provided with a plurality of water inlet and outlet holes, and the floating ball 21 is placed in the water level monitoring cylinder 211. The water level monitoring section of thick bamboo 211 is fixed to be set up, 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.

Furthermore, a plurality of laser lamps 11 in the photoelectric quantization device 1 of sand content of this embodiment 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 the 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-one. 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 photoelectric plate placing cylinder 15 and the lower portion of 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.

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

1. A device for synchronously adjusting the vertical position of a suspension object along with the change of water level is characterized by comprising 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 manner, and the conductive sleeve is used for being connected with the suspension object; 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 device for synchronously adjusting the vertical position of a hanging object along with the change of the water level as claimed in 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, 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 onto a 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.

3. The device for synchronously adjusting the vertical position of a suspended object along with the change of the water level as claimed in claim 2, further comprising a support, a polygonal limiting rod, a first transmission gear and a second transmission gear, wherein the support is fixedly arranged, the motor is mounted 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 inserted into 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 into the polygonal limiting hole.

4. The device for synchronously adjusting the vertical position of a suspended object along with the change of the water level as claimed in claim 1, wherein the device 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.

5. The device for synchronously adjusting the vertical position of a suspension object along with the change of the water level as claimed in claim 1, further comprising a pulley block and an insulating rope, wherein 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 suspension object.