CN114858676B - A device for adjusting the vertical position of a hanging object synchronously with water level changes - Google Patents

Abstract

The invention provides a device for synchronously adjusting the vertical position of a suspended object along with the change of a water level, which comprises a floating ball, a lifting rod, a suspended object, 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 drags the lifting and lowering 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 to drive the threaded rod to rotate to drive the conducting sleeve to move upwards, and as the conducting sleeve is connected with the hanging piece, the hanging piece is driven to move upwards, when the conducting sleeve is lifted to be in full contact with the insulating rod, the control circuit is disconnected, and the motor stops rotating; the rising distance of the floating ball is equal to the rising distance of the conductive sleeve and the upward moving distance of the suspended object, so that the bottom of the suspended object is always level with the water surface.

Description

A device for adjusting the vertical position of a hanging object synchronously with water level changes

Technical Field

The invention relates to the technical field of river hydraulic parameter monitoring, and in particular to a device for synchronously adjusting the vertical position of a hanging object as water level changes.

Background technique

Water depth and sediment content are important hydrological parameters, and their monitoring is of great significance for the construction of water conservancy and hydropower projects, the development and utilization of water resources, industrial and agricultural water intake, ship navigation, and hydrological forecasting. Light is often used in the design of water depth or sediment content measuring devices because of its high-speed, straight-line propagation and no influence on the physical properties of the water body. Affected by many random factors such as natural geography, regional climate, and human survival, the water level of natural rivers is constantly changing. This means that in the process of designing water depth or sediment content measuring devices using optical principles, it is necessary to consider how to make the designed device timely adjust the upper limit of the vertical measurement position according to the change of river water level. To achieve this goal, the most direct approach is to arrange an opaque suspension above the water surface, such as a light-shielding sleeve, to block the light emitted by the part of the luminous component of the device above the water surface. However, in the case of the constant change of the water level of the natural river, it is not easy to make the opaque suspension only block the light emitted by the part of the luminous component of the device above the water surface. In view of this, it is necessary to review the past, innovate thinking, and design a device that can synchronously adjust the vertical position of a light-proof hanging object (such as a light-shielding sleeve) as the water level changes to solve the above problems.

Summary of the invention

The purpose of the present invention is to address the deficiencies in the prior art and provide a device for synchronously adjusting the vertical position of a suspended object with changes in water level, comprising a float, a lifting rod, a conductive sleeve, a threaded rod, a motor and a control circuit, one end of the lifting rod is fixedly connected to the float, the other end of the lifting rod is divided into a first conductive rod, an insulating rod and a second conductive rod connected in sequence, the conductive sleeve is slidably sleeved on the lifting rod; the conductive sleeve is used to connect to the suspended object; one end of the threaded rod is connected to the conductive sleeve and insulated from the conductive sleeve, the threaded rod can drive the conductive sleeve to slide on the lifting rod under the drive of the motor, and the control circuit connects 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 protective resistor, a second iron spring switch, a second electromagnet and a second protective resistor, the first iron spring switch and the first protective resistor are connected in series between one electrode of the motor and the negative electrode of the second power supply, and the second iron spring switch and the second protective resistor are connected in series between another electrode of the motor and the negative electrode of the second power supply; the positive electrode of the second power supply is connected to the conductive sleeve through the second switch; one end of the first electromagnet is connected to the first conductive rod, and the other end of the first electromagnet is connected to the wire connecting the first iron spring switch and the motor, and the magnetic pole of the first electromagnet is facing the first iron spring switch; one end of the second electromagnet is connected to the second conductive rod, and the other end of the first electromagnet is connected to the wire connecting the second iron spring switch and the motor, and the magnetic pole of the second electromagnet is facing the second iron spring switch.

Optionally, the device for synchronously adjusting the vertical position of the suspended object with the change of water level also includes a bracket, a polygonal limit rod, a first transmission gear and a second transmission gear. The bracket is fixedly arranged, the motor is installed on the bracket, the second transmission gear is coaxially fixedly connected with the rotating shaft of the motor, the first transmission gear is meshed with the second transmission gear, and a threaded hole is provided in the middle of the first transmission gear, the threaded rod is inserted in the threaded hole, one end of the threaded rod is fixedly connected to the polygonal limit rod, and a polygonal limit hole is opened at the upper end of the bracket, and the polygonal limit rod is slidably inserted in the polygonal limit hole.

Optionally, the device for synchronously adjusting the vertical position of the hanging object with the change of water level also includes a water level monitoring tube, which 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 float is placed in the water level monitoring tube.

Optionally, the device for synchronously adjusting the vertical position of the suspended object with the change of water level also includes a pulley block and an insulating rope. The pulley block is fixedly arranged, and the insulating rope is wound around the pulley block. One end of the insulating rope is fixedly connected to the conductive sleeve, and the other end of the insulating rope is fixedly connected to the suspended object.

Compared with the prior art, the present invention has the following beneficial effects:

When the water level in the river rises, the float will pull up the lifting rod, causing the second conductive rod to contact the conductive sleeve, thereby causing the control circuit to control the motor to rotate, driving the threaded rod to rotate and thereby driving the conductive sleeve to move upward. Since the conductive sleeve is connected to the shading sleeve, the shading sleeve is driven to move upward. When the conductive sleeve is lifted to completely contact the insulating rod, the control circuit is disconnected and the motor stops rotating. The distance the float rises is equal to the distance the conductive sleeve moves upward, which is also equal to the distance the opaque suspension moves upward, thereby ensuring that the bottom of the opaque suspension is always flush with the water surface, so as to facilitate the subsequent determination of the upper limit of the vertical measurement position of the river hydraulic parameter measuring device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a device for synchronously adjusting the vertical position of a hanging object with changes in water level provided by the present invention.

Detailed ways

The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiment is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

The present invention will be further described below in conjunction with specific embodiments and drawings, but they are not intended to limit the present invention.

As shown in FIG. 1 , this embodiment discloses a device for measuring the vertical distribution of sediment content in a river, including a photoelectric quantification device 1 for sediment content and a device 2 for synchronously adjusting the vertical position of a hanging object as the water level changes.

Specifically, the photoelectric quantification device 1 of the 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 placement tube 15, a laser lamp placement tube 16 and a recording circuit 17. Among them, the plurality of photoelectric panels 12 are arranged in sequence from top to bottom, the photoelectric panel placement tube 15 is placed vertically, a plurality of photoelectric holes are opened in sequence from top to bottom on the photoelectric panel placement tube 15, and the plurality of photoelectric panels 12 are installed in the plurality of photoelectric holes one by one, each photoelectric panel 12 is connected in series with an ammeter 13, the ammeter 13 is arranged outside the photoelectric panel placement tube 15, and the wire connecting the ammeter and the photoelectric panel 12 passes through the inside of the photoelectric panel placement tube 15. The device 2 for adjusting the vertical position of a suspended object synchronously with the change of water level in this 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 limit rod 28, a first transmission gear 29, a second transmission gear 210, a water level monitoring tube 211, a pulley block 212 and an insulating rope 213. Among them, one end of the lifting rod 22 is fixedly connected to the floating ball 21, and the other end of the lifting rod 22 is divided into a first conductive rod, an insulating rod and a second conductive rod connected in sequence, and the conductive sleeve 23 is slidably sleeved on the lifting rod 22, and the conductive sleeve 23 is connected to the light-shielding sleeve 14 through the insulating rope 213, that is, the pulley block 212 is fixedly arranged, and the insulating rope 213 is wound on the pulley block 212, and one end of the insulating rope 213 is fixedly connected to the conductive sleeve 23, and the other end of the insulating rope 213 is fixedly connected to the light-shielding sleeve 14. One end of the threaded rod 24 is connected to 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 drive of the motor 25. The control circuit 26 electrically connects the motor 25, the first conductive rod, the second conductive rod and the conductive sleeve 23. When the water level in the river rises, the float 21 will pull up the lifting rod 22, so that the second conductive rod contacts the conductive sleeve 23, so that the control circuit 26 controls the motor 25 to rotate, driving the threaded rod 24 to rotate and thereby driving the conductive sleeve 23 to move upward. Since the conductive sleeve 23 is connected to the shading sleeve 14, the shading sleeve 14 is driven to move upward. When the conductive sleeve 23 is lifted to contact the insulating rod, the control circuit 26 is disconnected and the motor stops rotating. The rising distance of the float 21 is equal to the upward distance of the conductive sleeve 23, which is also equal to the upward distance of the shading sleeve 14, thereby ensuring that the bottom of the shading sleeve 14 is always flush with the water surface and can always block the light above the water surface, thereby ensuring that the device can continuously measure the changes in the vertical distribution of the river sediment content in water.

Further, the control circuit 26 of the present embodiment includes a second power supply 261, a second switch 262, a first iron spring switch 263, a first electromagnet 264, a first protective resistor 265, a second iron spring switch 266, a second electromagnet 267 and a second protective resistor 268, the first iron spring switch 263 and the first protective 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 iron spring switch 266 and the second protective 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 supply 261 is connected to the conductive sleeve 23 through the second switch 262; one end of the first electromagnet 264 is connected to the first conductive rod, and the other end of the first electromagnet 264 is connected to the wire connecting the first iron spring switch 263 and the motor 25, and the magnetic pole of the first electromagnet 264 is facing the first iron spring switch 263; one end of the second electromagnet 267 is connected to the second conductive rod, and the other end of the first electromagnet 264 is connected to the wire connecting the second iron spring switch 266 and the motor 25, and the magnetic pole of the second electromagnet 267 is facing the second iron spring switch 266. When the water level in the river rises, the float 21 will pull up the lifting rod 22, so that the second conductive rod will contact the conductive sleeve 23, thereby connecting the circuit from the second conductive rod, the second electromagnet 267, the second iron spring switch 266, the second protective resistor 268, the second power supply 261 to the conductive sleeve 23. At this time, the second electromagnet 267 will absorb the second iron spring switch 266 to disconnect the second iron spring switch 266, so that the current flows from the second electromagnet 267 into the motor 25, and then flows into the second power supply 261 after passing through the first iron spring switch 263 and the first protective resistor 265. At this time, the motor 25 rotates forward to cause the conductive sleeve 23 to rise. When the water level in the river drops, the float 21 will drive the lifting rod 22 to fall, so that the first conductive rod contacts the conductive sleeve 23, so that the circuit from the first conductive rod, the first electromagnet 264, the first iron spring switch 263, the first protective resistor 265, the second power supply 261 to the conductive sleeve 23 is turned on. At this time, the first electromagnet 264 will absorb the first iron spring switch 263 to disconnect the first iron spring switch 263, so that the current flows from the first electromagnet 264 to the motor 25, and then flows into the second power supply 261 after passing through the two iron spring switches and the two protective resistors. At this time, the motor 25 reverses to make the conductive sleeve 23 drop. It is worth noting that in these two processes, when the conductive sleeve 23 is adjusted to completely contact the insulating rod, the circuit is disconnected and the motor 25 stops rotating. During the movement of the conductive sleeve 23, the rod extending from the conductive sleeve 23 will pull the insulating thin rope to synchronously lift the shading sleeve 14, so that the bottom of the shading sleeve 14 always just touches the water surface.

Furthermore, the bracket 27 of the present embodiment is fixedly arranged, the motor 25 is mounted on the bracket 27, the second transmission gear 210 is coaxially 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 provided in the middle of the first transmission gear 29, a threaded rod is inserted into the threaded hole, one end of the threaded rod 24 is fixedly connected with a polygonal limiting rod 28, a polygonal limiting hole is provided at the upper end of the bracket 27, and the polygonal limiting rod 28 is slidably inserted into the polygonal limiting hole. The gear meshing can improve the transmission accuracy, and the limiting effect of the polygonal limiting rod 28 can prevent the threaded rod 24 from rotating, thereby ensuring that the threaded rod 24 moves up and down.

Furthermore, the water level monitoring tube 211 of the present embodiment is divided into a front half body and a rear half body, the front half body is the water-facing surface, the rear half body is the back surface, a plurality of water inlet and outlet holes are provided on the rear half body, and the float 21 is placed in the water level monitoring tube 211. The water level monitoring tube 211 is fixedly arranged, and is divided into a front half body and a rear half body, the front half body is the water-facing surface, the rear half body is the back surface, a plurality of water inlet and outlet holes are provided on the rear half body, and the float 21 is placed in the water level monitoring tube 211. The water inlet and outlet holes are densely distributed on the back surface of the rear half body of the water level monitoring tube wall, which can avoid the kinetic energy of water from being converted into potential energy and causing the water level in the water level monitoring tube to be too high. The number of water inlet and outlet holes should be sufficient to increase the sensitivity of the water level monitoring tube to the change of the water level in the river. The wall of the water level monitoring tube has a certain thickness and the diameter of the water inlet and outlet holes is small and the holes of the water inlet and outlet holes are slender, which can reduce the water level oscillation in the water level monitoring tube caused by the fluctuation of the river water level and reduce the oscillation of the float 21.

Furthermore, the plurality of laser lamps 11 in the photoelectric quantification device 1 for the sand content of the present embodiment are arranged in sequence from top to bottom, the laser lamp placement tube 16 is placed vertically, and a plurality of laser holes are opened in sequence from top to bottom on the laser lamp placement tube 16, and the plurality of laser lamps 11 are installed in the plurality of laser holes in a one-to-one correspondence. The plurality of photoelectric panels 12 are arranged opposite to the plurality of laser lamps 11 in a one-to-one correspondence, and the lasers emitted by the laser lamps 11 can irradiate the photoelectric panels 12 in a one-to-one correspondence. When the laser emitted by the laser lamp 11 passes through the measured water body and irradiates the photoelectric panels 12, the photoelectric panels 12 absorb the corresponding light and generate current, and the ammeter 13 displays the magnitude of the current generated by the corresponding photoelectric panels 12. When the light intensity is equal, when the light passes through water bodies with different sand contents, the light energy lost is different, that is, the change of the sand content along the vertical line can make the transmittance of the sand-containing water body different along the vertical line, so that the readings generated by the plurality of ammeters 13 are different, and the sand content that is difficult to measure can be converted into an electrical signal output that is easy to measure.

It is worth noting that the lower parts of the photovoltaic panel placement tube 15 and the laser light placement tube 16 of this embodiment are fixedly connected by a connecting rod.

Furthermore, the recording circuit 17 includes a first power supply 171, a first switch 172 and a video recorder 173. The first power supply 171, the first switch 172 and the video recorder 173 are connected in series, and the video recorder 173 faces a plurality of ammeters 13; a plurality of laser lamps 11 connected in parallel are also connected in parallel with the video recorder 173. The photoelectric characteristics of the plurality of laser lamps 11 are the same and must be independently connected in parallel to the power supply to ensure that the light intensity emitted by each laser lamp 11 is equal. The video recorder 173 is connected to the circuit in parallel with the laser lamp 11. When the sand content is converted into an electrical signal output of the ammeter 13, the video recorder 173 can synchronously record the readings of each ammeter 13 in real time, so that the vertical distribution of the sand content can be converted from the readings of the ammeter 13 later. It is worth noting that the numbers of the plurality of ammeters 13 must correspond to the vertical positions of the photoelectric panels 12 one by one, so that when reading the readings of each ammeter 13, the vertical position of its photoelectric panel 12 is also known, that is, the vertical position of the corresponding sand content measurement point is known. After the readings of each ammeter 13 are recorded, the relationship between the sand content and the reading of the ammeter 13 of the device is calibrated using existing sand content measuring instruments or methods. Then the recorded ammeter 13 readings can be converted into sand content based on the calibrated relationship, so that the vertical distribution of sand content can be obtained.

Furthermore, the light-shielding sleeve 14 can be slidably mounted on the outside of the laser lamp 11. When in use, the bottom end of the light-shielding sleeve 14 needs to be set at a position just touching the water surface, so as to limit the upper limit of the vertical position of the sand content measurement. In other words, the light-shielding sleeve 14 can completely block the laser above the water surface, and the photoelectric panel 12 above the water surface does not generate current, and the corresponding ammeter 13 reads zero, so the ammeter 13 above the water surface and the ammeter below the water surface can be distinguished from the reading. The lower limit of the vertical position of the sand content measurement is the riverbed surface, so the lower limit of the vertical position of the sand content measurement does not need to be limited by another component. The light emitted by the laser lamp 11 buried in the bed sand layer cannot be irradiated to the photoelectric panel 12 due to the obstruction of the mud and sand, so there is no current in its circuit, and the ammeter 13 reads zero.

The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the specification of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. The device for synchronously adjusting the vertical position of the suspended object along with the change of the 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 suspended object; 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 drive of the motor, and the control circuit is connected with the motor, the first conductive rod, the second conductive rod and the conductive sleeve; the control circuit comprises 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, wherein the first iron spring switch and the first protection resistor are connected in series between one electrode of the motor and the 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 the negative electrode of the second power supply; the anode 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 to a wire connected with the first iron spring switch and the motor, and the magnetic pole of the first electromagnet faces to 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 wire connected with the second iron spring switch and the motor, and the magnetic pole of the second electromagnet faces to the second iron spring switch; the device still includes support, 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 second drive gear with the coaxial fixed connection of pivot of motor, first drive gear with second drive gear meshing, there is the screw hole in the middle part of first drive gear, the threaded rod is inserted and is located threaded hole, the one end fixed connection of threaded rod the polygon gag lever post, polygon spacing hole has been seted up to the upper end of support, the polygon gag lever post slides and inserts and locate in the polygon spacing hole.

2. The device for synchronously adjusting the vertical position of a suspended object along with the change of the water level according to claim 1, further comprising a water level monitoring cylinder, wherein 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.

3. The device for synchronously adjusting the vertical position of a suspended object along with the change of the water level according to 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 suspended object.