CN115752631A - Self-cleaning silt water level measuring device and method suitable for channel - Google Patents

Abstract

The invention discloses a self-cleaning silt water level measuring device and a self-cleaning silt water level measuring method suitable for channels, and belongs to the technical field of hydraulic engineering. A self-cleaning sludge water level measuring device suitable for a channel comprises: a support plate; the lower ends of the two sides of the measuring cylinder are provided with water inlet holes, and the measuring cylinder is vertically and slidably connected to the support plate; the floating plate is connected in the measuring cylinder in a sliding manner; when the water level of the channel is measured, the liquid level in the measuring cylinder and the liquid level of the channel can be kept horizontal, and the water in the measuring cylinder and the external turbulent water flow are separated by the measuring cylinder, so that the water in the measuring cylinder can be in a non-fluctuation state, the accuracy of water level measurement is improved, and when the water flow impacts the measuring cylinder, an acting force opposite to the direction of the water flow can be generated on the measuring cylinder, so that the impact force of the acting force and the water flow is mutually offset, the measuring cylinder can be stably positioned in the water, and the accuracy of water level measurement of the channel is further improved.

Description

Self-cleaning silt water level measuring device and method suitable for channel

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a self-cleaning silt water level measuring device and a self-cleaning silt water level measuring method suitable for a channel.

Background

The channel usually refers to canal, irrigation canals and ditches, is the passageway of rivers, is the water course that is used for leading water to drain and irrigate, and water level measurement is the important means of irrigation district water consumption management, and the channel water level is the important parameter of judging channel operating condition and channel flow calculation, and in the prior art, usually can establish a water level measuring well that is linked together with the channel by the channel, utilizes the principle of linker to measure the water level of channel, but because silt and impurity siltation scheduling problem, can lead to measuring well measurement water level work limited, in order to guarantee the water gaging precision current method be regularly manual desilting, the cost of labor is great.

At present, most irrigation district channels start to use a radar sensor or an ultrasonic sensor to measure the free liquid level of the channel so as to determine the water level of the channel and the water depth of the channel, the problem that yellow river water has large silt content generally exists in the channels of the yellow river irrigation district, the standard section of the channel can be continuously changed along with silt siltation, and after the channels pass through water, when water flows move from upstream to downstream, the flow velocity of the water flow is too high, so that the liquid level of the channel is fluctuated, the liquid level of a position to be measured is unstable, and the water level of the channel and the water depth of the channel can not be accurately measured.

Disclosure of Invention

The invention aims to solve the problems in the background technology, and provides a self-cleaning sludge water level measuring device suitable for a channel.

In order to achieve the purpose, the invention adopts the following technical scheme: a self-cleaning sludge water level measuring device suitable for a channel comprises: a support plate; the lower ends of the two sides of the measuring cylinder are provided with water inlet holes, and the measuring cylinder is vertically and slidably connected to the support plate; the floating plate is connected in the measuring cylinder in a sliding manner; the water level measuring meter is fixedly connected to the floating plate, and the measuring end of the water level measuring meter is flush with the lower surface of the floating plate; the measuring cylinder is fixedly connected in the through hole of the counterweight plate, and the bottom of the measuring cylinder is flush with the bottom of the counterweight plate; the mounting plate is fixedly connected to one side of the floating plate facing to the water flow; the interior of the compressed air bag is filled with saturated gas and is fixedly connected to the mounting plate; the triangular plate is fixedly connected to one side, far away from the mounting plate, of the compression air bag; the inverted L-shaped plate is fixedly connected to one side, far away from the mounting plate, of the measuring cylinder and is connected to the support plate in a sliding manner; the inner part of the inflator is filled with saturated gas and is fixedly connected with one side of the inverted L-shaped plate close to the measuring cylinder, and the compression air bag is communicated with the inflator through a communicating pipe; the piston rod with a piston is connected in the air cylinder in a sliding manner, and one end of the piston rod, which is far away from the inverted L-shaped plate, is abutted against the measuring cylinder; and the dredging component is used for removing the sediment around the counterweight plate and is arranged on the counterweight plate.

For the convenience of carrying out the desilting to the silt of measuring the bobbin base portion, preferably, the desilting subassembly includes first pivot, dials board and drive division, the rectangle runs through the mouth has been seted up to bilateral symmetry around lieing in the opening on the weight plate, first pivot rotation is connected in the rectangle runs through the mouth, dial the board and be circumference equidistant fixed connection in first pivot, drive division symmetric connection is in the both sides of weight plate.

Further, the drive division includes second pivot, impeller and carries the casing, second pivot symmetric connection in the both sides of counterweight plate, and respectively with the both ends fixed connection of first pivot, impeller fixed connection is in the second pivot, carry casing symmetry fixed connection in the both sides of counterweight plate, and cup joint on the impeller, the gas port has been seted up to bilateral symmetry around carrying the casing, extension board fixedly connected with compression air pump, the extension board is close to compression air pump's position fixedly connected with shunt tubes, compression air pump's the end of giving vent to anger is put through with the inlet end of shunt tubes mutually, put through mutually through the gas-supply pipe between shunt tubes and the gas port that carries the casing adjacent.

In order to improve the dredging effect, more closely, the fixed connection of the gas port department of carrying casing to keep away from gas-supply pipe one end has the exhaust return bend, the gas vent face of exhaust return bend sets up downwards.

In order to avoid impurity such as silt to follow rivers and enter into measuring a section of thick bamboo, cause the influence preferably to the precision of water level measurement, the inlet opening department of measuring a section of thick bamboo switches on there is the diversion return bend, the water inlet of diversion return bend sets up towards the downstream direction of channel.

In order to facilitate the water level measuring meter to be located in the measuring cylinder and avoid the floating plate being located below the water inlet hole so that the water level measuring meter cannot be located on the water surface, preferably, a lower limiting ring is fixedly connected to the upper portion of the inside of the measuring cylinder, which is close to the water inlet hole, and an upper limiting ring is fixedly connected to the upper end of the inside of the measuring cylinder.

In order to facilitate the spacing of going on after lifting to the measuring cylinder to remove the transportation to the device, preferably, the position that the extension board upper end is close to the template of falling L rotates and is connected with the dwang, dwang bilateral symmetry fixedly connected with gag lever post, dwang and gag lever post integrated into one piece design, set up on the template of falling L with dwang, gag lever post assorted through-hole, dwang, gag lever post slide in the through-hole, the bottom that the template of falling L is located the through-hole has seted up the constant head tank.

In order to facilitate the limiting of the triangular plate, the triangular plate is prevented from being irregularly displaced due to the influence of turbulent water flow, so that the stability of the measuring cylinder is influenced.

In order to facilitate flexible movement and height adjustment of the device, the lower ends of the two sides of the support plate are preferably symmetrically and fixedly connected with moving plates, moving wheels are mounted at the bottoms of the moving plates, and a hydraulic lifting cylinder is fixedly connected between the support plate and the moving plates.

A measuring method of a self-cleaning silt water level measuring device suitable for a channel comprises the following steps:

s1: firstly, a support plate is vertically placed above a channel, and then a measuring cylinder is arranged below the support plate, so that the measuring cylinder can move into water under the driving of a balance weight plate until the balance weight plate is attached to silt deposited at the bottom of the channel;

s2: when water submerges the water inlet holes on the two sides of the lower end of the measuring cylinder, the water flows into the measuring cylinder through the water inlet holes, and the floating plate drives the water level measuring meter to float on the water surface under the action of buoyancy;

s3: when the measuring cylinder moves to the lowest end, the water level in the measuring cylinder and the water level in the channel are flush at the moment, and then the water level in the measuring cylinder can be measured through the water level measuring meter, so that the height of the water level in the channel can be measured;

s4: when water flow impacts the measuring cylinder and the triangular plate, gas in the compressed air bag is conveyed into the air inlet cylinder, then the piston rod can generate acting force opposite to the impact force of the water flow on the measuring cylinder, and the acting force is offset with the impact force of the water flow, so that the measuring cylinder can be vertically positioned in water;

s5: after the water level of the channel is measured, the dredging component is started to stir the silt deposited around the bottom of the counterweight plate, so that the silt in the channel is in a suspended state, and then the suspended silt is taken away by water flow, so that the water depth of the channel can be measured;

s6: and finally, calculating the data measured by the channel to obtain the water level, the water depth and the silt depth of the channel.

Compared with the prior art, the invention provides a self-cleaning silt water level measuring device suitable for a channel, which has the following beneficial effects:

1. the self-cleaning silt water level measuring device suitable for the channel is arranged through the measuring cylinder, when the water level of the channel is measured, the principle of a communicating device can be utilized, the liquid level in the measuring cylinder and the liquid level of the channel are kept horizontal, and the water in the measuring cylinder and the external turbulent water flow are separated by the measuring cylinder, so that the water in the measuring cylinder can be in a non-fluctuating and stable state, and the accuracy of water level measurement is effectively improved;

2. this kind of water level measuring device that becomes silted up from clear suitable for channel has still set up mounting panel, compression gasbag, set-square, fall L template, inflator, piston rod and communicating pipe, balancing weight, when rivers impact measuring cylinder, can produce an effort opposite with rivers direction to the measuring cylinder, makes its impact force with rivers offset each other to make the measuring cylinder can be located the aquatic comparatively steadily, further improved the precision to channel water level measurement.

The invention can utilize the principle of a communicating vessel to ensure that the liquid level in the measuring cylinder and the liquid level of the channel are kept horizontal when the water level of the channel is measured, and because the water in the measuring cylinder and the external turbulent water flow are separated by the measuring cylinder, the water in the measuring cylinder can be in a non-fluctuating and stable state, the accuracy of water level measurement is effectively improved, and when the water flow impacts the measuring cylinder, an acting force opposite to the water flow direction can be generated on the measuring cylinder, so that the acting force of the acting force and the water flow are mutually offset, the measuring cylinder can be stably positioned in the water, and the accuracy of the water level measurement of the channel is further improved.

Drawings

FIG. 1 is a schematic view showing a three-dimensional structure of a self-cleaning silt water level measuring device for a channel, which is provided by the invention, installed on the channel;

FIG. 2 is a schematic view of a second three-dimensional structure of a self-cleaning silt water level measuring device suitable for a channel, which is provided by the invention and is installed on the channel;

FIG. 3 is a schematic structural diagram of a self-cleaning silt water level measuring device suitable for a channel according to the present invention;

FIG. 4 is a schematic structural diagram of a removal support plate, a moving wheel and a hydraulic lifting cylinder in the self-cleaning silt water level measuring device for the channel according to the present invention;

FIG. 5 is a schematic structural diagram of a measuring cylinder, an air cylinder, a piston rod, a communicating pipe, a compression air bag and a triangular plate in the self-cleaning silt water level measuring device suitable for the channel;

FIG. 6 is a schematic structural diagram of a counterweight plate, a shifting plate, a conveying shell and a gas pipe in the self-cleaning silt water level measuring device suitable for the channel;

FIG. 7 is an exploded view of a weight plate, a shifting plate, a conveying shell, a gas pipe, a first rotating shaft, a second rotating shaft and an impeller in the self-cleaning silt water level measuring device for a channel according to the present invention;

FIG. 8 is an exploded view of a measuring cylinder, a mounting plate, a positioning rod, a compression air bag, a triangular plate and a water diversion elbow in the self-cleaning silt water level measuring device for the channel according to the present invention;

FIG. 9 is a schematic structural diagram of a measuring cylinder, a lower limiting ring, an upper limiting ring, a floating plate and a water level gauge in the self-cleaning silt water level measuring device for a channel according to the present invention;

FIG. 10 is an exploded view of the measuring cylinder, the lower limiting ring, the upper limiting ring, the floating plate and the water level meter in the self-cleaning silt water level measuring device for the channel according to the present invention;

fig. 11 is a schematic structural view of an inverted L-shaped plate, a rotating rod and a limiting rod in the self-cleaning silt water level measuring device suitable for the channel.

In the figure: 1. a support plate; 101. moving the plate; 102. a moving wheel; 103. a hydraulic lifting cylinder; 2. a measuring cylinder; 201. a water inlet hole; 202. a lower limit ring; 203. an upper limiting ring; 204. a floating plate; 205. a water level meter; 206. a water diversion elbow; 207. mounting a plate; 208. compressing the air bag; 209. a set square; 2010. positioning a rod; 3. an L-shaped plate is inverted; 301. positioning a groove; 302. rotating the rod; 303. an air cylinder; 304. a piston rod; 305. a communicating pipe; 4. a weight plate; 401. a rectangular through opening; 402. a first rotating shaft; 403. a transport housing; 404. a port; 405. pulling a plate; 406. a second rotating shaft; 407. an impeller; 408. an exhaust elbow; 5. compressing the air pump; 501. a shunt tube; 502. a gas delivery pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1:

referring to fig. 1 to 11, a self-reslurry water level measuring apparatus for a channel includes: a support plate 1; the lower ends of the two sides of the measuring cylinder 2 are provided with water inlet holes 201, and the measuring cylinder is vertically and slidably connected to the support plate 1; the floating plate 204 is connected in the measuring cylinder 2 in a sliding manner; a water level gauge 205 fixedly connected to the floating plate 204, and a measuring end of the water level gauge is flush with the lower surface of the floating plate 204; the balance weight plate 4 with a through hole 404 in the middle is connected to the lower end of the measuring cylinder 2, the measuring cylinder 2 is fixedly connected into the through hole 404 of the balance weight plate 4, and the bottom of the measuring cylinder is flush with the bottom of the balance weight plate 4; a mounting plate 207 fixedly connected to a side of the floating plate 204 facing the water flow; a compressed air bag 208 filled with saturated gas and fixedly connected to the mounting plate 207; a triangular plate 209 fixedly connected to one side of the compression air bag 208 far away from the mounting plate 207; the inverted L-shaped plate 3 is fixedly connected to one side, far away from the mounting plate 207, of the measuring cylinder 2 and is connected to the support plate 1 in a sliding mode; the gas cylinder 303 filled with saturated gas is fixedly connected to one side of the inverted L-shaped plate 3 close to the measuring cylinder 2, and the compression air bag 208 is communicated with the gas cylinder 303 through a communicating pipe 305; a piston rod 304 with a piston is connected in the air cylinder 303 in a sliding way, and one end of the piston rod 304, which is far away from the inverted L-shaped plate 3, is abutted against the measuring cylinder 2; the dredging component is used for removing the silt around the counterweight plate 4 and is arranged on the counterweight plate 4;

the dredging component comprises a first rotating shaft 402, a shifting plate 405 and a driving part, rectangular through holes 401 are symmetrically formed in the front side and the rear side of the through hole 404 on the counterweight plate 4, the first rotating shaft 402 is rotatably connected in the rectangular through holes 401, the shifting plate 405 is fixedly connected to the first rotating shaft 402 at equal intervals on the circumference, and the driving part is symmetrically connected to the two sides of the counterweight plate 4;

the drive division includes second pivot 406, impeller 407 and carries casing 403, second pivot 406 symmetric connection is in the both sides of counterweight plate 4, and respectively with the both ends fixed connection of first pivot 402, impeller 407 fixed connection is on second pivot 406, carry casing 403 symmetric fixed connection in the both sides of counterweight plate 4, and cup joint on impeller 407, the gas port has been seted up to the bilateral symmetry around carrying casing 403, extension board 1 fixedly connected with compression air pump 5, extension board 1 is close to the position fixedly connected with shunt tubes 501 of compression air pump 5, the end of giving vent to anger of compression air pump 5 is put through with the inlet end of shunt tubes 501, put through the gas-supply pipe 502 between the gas port that shunt tubes 501 and carry casing 403 adjacent.

When the water level and the water depth of a channel of an irrigation area need to be measured, a measurer firstly transports the device to the side of the channel, then transversely places the support plate 1 on the channel, so that the support plate 1 is vertically arranged with the channel, then fixes the support plate 1, so as to improve the overall stability of the device in operation, after the support plate 1 is fixed, the measuring cylinder 2 is loosened, the measuring cylinder 2 moves into water under the driving of the counterweight plate 4 until the counterweight plate 4 is attached to silt deposited at the bottom of the channel, when water passes through the water inlet holes 201 on two sides of the lower end of the measuring cylinder 2, the water flow flows into the measuring cylinder 2 through the water inlet holes 201, then the floating plate 204 drives the water level measuring meter 205 to float on the water surface under the action of buoyancy, when the measuring cylinder 2 moves to the lowest end, the water surface in the measuring cylinder 2 and the water surface in the channel are in a parallel and level state, and the liquid level in the measuring cylinder 2 is more gentle than the liquid level of the channel, compared with the mode of directly measuring the water level of the channel in the prior art, the fluctuation of the liquid level is not needed to be considered, so that the water level of the channel can be accurately measured, then the water level in the measuring cylinder 2 is measured by the water level measuring meter 205, the height of the water level in the channel can be accurately measured, because the water in the channel has moving flow velocity, when the measuring cylinder 2 is vertically placed in the water, flowing water can generate certain impact force to the measuring cylinder 2, so that the measuring cylinder 2 is inclined, the accuracy of the water level measurement is influenced, and when the measuring cylinder 2 is vertically placed in the water, the flowing water flow can impact the triangular plate 209, and after the triangular plate 209 receives the impact, the compression air bag 208 can be extruded, then, the gas filled in the compression airbag 208 is conveyed into the gas inlet cylinder 303 through the communicating pipe 305, and the gas cylinder 303 is also filled with the gas in advance, so that when the gas in the compression airbag 208 enters the gas cylinder 303, the piston rod 304 is jacked to one side close to the measuring cylinder 2, and then the piston rod 304 generates an acting force opposite to the impact force of water flow on the measuring cylinder 2 to offset the impact force of the water flow, so that the measuring cylinder 2 can be stably positioned in the water, and the accuracy of measuring the water level of a channel is effectively improved;

when the water level of the channel is measured, the compression air pump 5 is started at the moment, the compression air pump 5 can convey high-pressure air into the flow dividing pipe 501, then the high-pressure air entering the flow dividing pipe 501 is conveyed into the conveying shell 403 through the air conveying pipe 502, then the high-pressure air flowing fast in the conveying shell 403 can generate impact force on the impeller 407, so that the impeller 405 is driven by the second rotating shaft 406 to rotate fast, silt deposited below the measuring cylinder 2 can be stirred, the silt in the channel is in a suspended state, then the suspended silt is taken away by water flow, the silt deposited at the bottom of the measuring cylinder 2 can be quickly desilted, meanwhile, the high-pressure air flow discharged through the conveying shell 403 can also impact the silt, the desilting efficiency of the silt at the bottom of the measuring cylinder 2 is further improved, when the desilting of the silt at the bottom of the measuring cylinder 2 is finished, the water depth of the channel can be accurately measured, and then the water level, the water level and the water level of the channel can be greatly improved, and the desilting efficiency of the water level and the water depth can be conveniently measured by a person;

further, equidistant sliding connection has a multiunit to measure a section of thick bamboo 2 on extension board 1, through set up multiunit to measure a section of thick bamboo 2 on extension board 1, when measuring the channel water level, can once only measure same sectional water level and depth of water to according to the measuring result of multiunit, alright accurate the data of calculating this position department water level, further improve the precision to channel water level measurement.

Example 2:

referring to fig. 1 to 11, a self-cleaning sludge water level measuring device for a channel, which is substantially the same as embodiment 1, further comprises: an exhaust elbow 408 is fixedly communicated with the air port of one end, far away from the air conveying pipe 502, of the conveying shell 403, the exhaust port of the exhaust elbow 408 is arranged in a downward mode, and the exhaust port of the exhaust elbow 408 is arranged in a downward mode, so that when air flow is exhausted through the exhaust elbow 408, the air flow can be directly sprayed to sediment deposited on a riverbed, the sediment around the counterweight plate 4 is impacted, the sediment removing effect of the sediment at the bottom of the measuring cylinder 2 is further improved, and the water depth of a channel can be accurately measured;

a water inlet hole 201 of the measuring cylinder 2 is communicated with a water diversion elbow 206, a water inlet of the water diversion elbow 206 is arranged towards the downstream direction of the channel, and impurities such as silt and the like can be prevented from entering the measuring cylinder 2 along with water flow by arranging the water inlet of the water diversion elbow 206 towards the downstream direction of the channel, so that the accuracy of water level measurement is influenced, and the problem that silt and impurities are deposited in the measuring cylinder 2 is effectively avoided;

the inside top fixedly connected with that is close to inlet opening 201 of measuring section of thick bamboo 2 is spacing ring 202 down, the inside upper end fixedly connected with of measuring section of thick bamboo 2 is spacing ring 203 from top, setting through spacing ring 202 from top down and spacing ring 203 from top down, can make and float board 204, water level meter 205 is located measuring section of thick bamboo 2 all the time, avoid floating board 204 and water level meter 205 to shift out measuring section of thick bamboo 2, cause the problem of losing to appear, and through setting up spacing ring 202 from top at inlet opening 201 from bottom down, when water enters into measuring section of thick bamboo 2 through inlet opening 201, can make water be located the below of floating board 204 all the time, avoid rivers to advance back in measuring section of thick bamboo 2, directly flow to the top of floating board 204, so that water level meter 205 can't be located the surface of water, the stability to water level measurement has been guaranteed effectively.

Example 3:

referring to fig. 1 to 11, a self-cleaning sludge water level measuring device for a channel, which is substantially the same as embodiment 1, further comprises: the upper end of the support plate 1 is rotatably connected with a rotating rod 302 at a position close to the inverted L-shaped plate 3, two sides of the rotating rod 302 are symmetrically and fixedly connected with limiting rods, the rotating rod 302 and the limiting rods are integrally formed, through holes matched with the rotating rod 302 and the limiting rods are formed in the inverted L-shaped plate 3, the rotating rod 302 and the limiting rods slide in the through holes, a positioning groove 301 is formed in the bottom of the through hole of the inverted L-shaped plate 3, the inverted L-shaped plate 3 slides on the rotating rod 302, a limiting effect can be achieved on the inverted L-shaped plate 3, the stabilizing effect on the measuring cylinder 2 is further improved, after the water level is measured, the inverted L-shaped plate 3 is moved out of the rotating rod 302 upwards, then the rotating rod 302 is rotated, the limiting rods at two sides of the rotating rod 302 and the through holes in the inverted L-shaped plate 3 are in a cross state, then the inverted L-shaped plate 3 is put down, the top ends of the rotating rod 302 and the limiting rods are positioned in the positioning groove 301 of the inverted L-shaped plate 3, so that the measuring cylinder 2 can be limited after being lifted, and the device can be moved and transported;

mounting panel 207 is located compression balloon 208's bilateral symmetry fixedly connected with locating lever 2010, set-square 209 sliding connection is on locating lever 2010, through making set-square 209 sliding connection at locating lever 2010, can play spacing effect to set-square 209, makes it can only carry out the back-and-forth movement, avoids set-square 209 to receive the random displacement of influence of turbulent water flow to cause the influence to the stability of measuring cylinder 2.

Example 4:

referring to fig. 1-11, a self-cleaning sludge water level measuring device for channels is basically the same as that of embodiment 1, and further comprises: the movable plates 101 are symmetrically and fixedly connected to the lower ends of the two sides of the support plate 1, the moving wheels 102 are installed at the bottom of the movable plates 101, the hydraulic lifting cylinders 103 are fixedly connected between the support plate 1 and the movable plates 101, through the arrangement of the movable plates 101 and the moving wheels 102, when the water level of a channel is measured, the device can be pushed, the water levels of different positions of the channel are measured, the device is convenient to transport, through the arrangement of the hydraulic lifting cylinders 103, the height of the support plate 1 can be flexibly adjusted, the water level of the channel with different heights can be conveniently measured, and the applicability of the device is effectively improved.

According to the invention, through the arrangement of the measuring cylinder 2, when the water level of the channel is measured, the principle of a communicating vessel can be utilized to ensure that the liquid level in the measuring cylinder 2 and the liquid level of the channel are kept horizontal, and because the water in the measuring cylinder 2 and the external turbulent water flow are separated by the measuring cylinder 2, the water in the measuring cylinder 2 can be in a non-fluctuating and stable state, so that the accuracy of water level measurement is effectively improved, and meanwhile, the mounting plate 207, the compression air bag 208, the triangular plate 209, the inverted L-shaped plate 3, the air cylinder 303, the piston rod 304, the communicating pipe 305 and the counterweight plate 4 are arranged, so that when the water flow impacts the measuring cylinder 2, an acting force opposite to the direction of the water flow can be generated on the measuring cylinder 2, the acting force of the water flow and the impact force of the water flow are mutually counteracted, so that the measuring cylinder 2 can be stably positioned in the water, and the accuracy of water level measurement of the channel is further improved.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto.

Claims (10)

1. A self-cleaning silt water level measuring device suitable for a channel is characterized by comprising:

a support plate (1);

the lower ends of the two sides of the measuring cylinder (2) are provided with water inlet holes (201), and the measuring cylinder is vertically connected to the support plate (1) in a sliding manner;

the floating plate (204) is connected in the measuring cylinder (2) in a sliding manner;

the water level gauge (205) is fixedly connected to the floating plate (204), and the measuring end of the water level gauge is flush with the lower surface of the floating plate (204);

the measuring cylinder (2) is fixedly connected in the through hole (404) of the counterweight plate (4), and the bottom of the measuring cylinder (2) is flush with the bottom of the counterweight plate (4);

the mounting plate (207) is fixedly connected to one side, facing the water flow, of the floating plate (204);

a compression air bag (208) filled with saturated gas inside and fixedly connected to the mounting plate (207);

the triangular plate (209) is fixedly connected to one side of the compression air bag (208) far away from the mounting plate (207);

the inverted L-shaped plate (3) is fixedly connected to one side, far away from the mounting plate (207), of the measuring cylinder (2) and is connected to the support plate (1) in a sliding mode;

the inner part of the gas cylinder (303) is filled with saturated gas, the gas cylinder is fixedly connected to one side, close to the measuring cylinder (2), of the inverted L-shaped plate (3), and the compression gas bag (208) is communicated with the gas cylinder (303) through a communicating pipe (305);

the piston rod (304) with a piston is connected in the air cylinder (303) in a sliding manner, and one end, far away from the inverted L-shaped plate (3), of the piston rod (304) is abutted against the measuring cylinder (2);

and the dredging component is used for removing the silt around the counterweight plate (4) and is arranged on the counterweight plate (4).

2. The self-dredging water level measuring device suitable for the channel as claimed in claim 1, wherein the dredging component comprises a first rotating shaft (402), a shifting plate (405) and a driving part, rectangular through holes (401) are symmetrically formed in the front side and the rear side of the through hole (404) on the counterweight plate (4), the first rotating shaft (402) is rotatably connected in the rectangular through holes (401), the shifting plate (405) is fixedly connected to the first rotating shaft (402) at equal intervals on the circumference, and the driving part is symmetrically connected to two sides of the counterweight plate (4).

3. The self-cleaning silt water level measuring device suitable for the channel according to claim 2, wherein the driving part comprises a second rotating shaft (406), an impeller (407) and a conveying shell (403), the second rotating shaft (406) is symmetrically connected to two sides of the counterweight plate (4) and is respectively and fixedly connected to two ends of the first rotating shaft (402), the impeller (407) is fixedly connected to the second rotating shaft (406), the conveying shell (403) is symmetrically and fixedly connected to two sides of the counterweight plate (4) and is sleeved on the impeller (407), air ports are symmetrically formed in the front and rear sides of the conveying shell (403), the support plate (1) is fixedly connected with the compression air pump (5), a shunt pipe (501) is fixedly connected to a position of the support plate (1) close to the compression air pump (5), an air outlet end of the compression air pump (5) is connected to an air inlet end of the shunt pipe (501), and the air port of the shunt pipe (501) and the conveying shell (403) are connected to each other through an air pipe (502).

4. The self-cleaning sludge water level measuring device applicable to the channel as claimed in claim 3, wherein an exhaust elbow (408) is fixedly communicated with an air port at one end of the conveying shell (403) far away from the air conveying pipe (502), and an exhaust port of the exhaust elbow (408) is arranged to face downwards.

5. The self-cleaning sludge water level measuring device suitable for the channel according to the claim 1, characterized in that a water diversion elbow (206) is communicated with the water inlet hole (201) of the measuring cylinder (2), and the water inlet of the water diversion elbow (206) is arranged towards the downstream direction of the channel.

6. The self-cleaning sludge water level measuring device suitable for the channel according to the claim 1, wherein a lower limiting ring (202) is fixedly connected to the upper part of the inside of the measuring cylinder (2) close to the water inlet hole (201), and an upper limiting ring (203) is fixedly connected to the upper end of the inside of the measuring cylinder (2).

7. The self-cleaning silt water level measuring device suitable for the channel according to claim 1, wherein a rotating rod (302) is rotatably connected to the upper end of the support plate (1) near the inverted L-shaped plate (3), a limiting rod is fixedly connected to both sides of the rotating rod (302), the rotating rod (302) and the limiting rod are integrally formed, a through hole matched with the rotating rod (302) and the limiting rod is formed in the inverted L-shaped plate (3), the rotating rod (302) and the limiting rod slide in the through hole, and a positioning groove (301) is formed in the bottom of the inverted L-shaped plate (3) at the through hole.

8. The self-cleaning sludge water level measuring device suitable for the channel as claimed in claim 1, wherein the mounting plate (207) is positioned at two sides of the compression air bag (208) and is fixedly connected with positioning rods (2010) symmetrically, and the triangular plate (209) is connected on the positioning rods (2010) in a sliding manner.

9. The self-cleaning sludge water level measuring device suitable for the channel according to the claim 1, wherein the lower ends of both sides of the support plate (1) are symmetrically and fixedly connected with a moving plate (101), the bottom of the moving plate (101) is provided with a moving wheel (102), and a hydraulic lifting cylinder (103) is fixedly connected between the support plate (1) and the moving plate (101).

10. A measuring method of a self-reslurry water level measuring apparatus for a channel comprising the self-reslurry water level measuring apparatus for a channel according to claim 1, characterized by comprising the steps of:

s1: firstly, a support plate (1) is vertically placed above a channel, then a measuring cylinder (2) is arranged below the support plate, and the measuring cylinder (2) can move inwards under the driving of a balance weight plate (4) until the balance weight plate (4) is attached to sediment deposited at the bottom of the channel;

s2: when water submerges the water inlet holes (201) on the two sides of the lower end of the measuring cylinder (2), the water flows into the measuring cylinder (2) through the water inlet holes (201), and the floating plate (204) drives the water level measuring meter (205) to float on the water surface under the action of buoyancy;

s3: when the measuring cylinder (2) moves to the lowest end, the water level in the measuring cylinder (2) and the water level in the channel are flush at the moment, and then the water level in the measuring cylinder (2) can be measured through the water level measuring meter (205), so that the height of the water level in the channel can be measured;

s4: when water flow impacts the measuring cylinder (2) and the triangular plate (209), gas in the compression air bag (208) is conveyed into the air inlet cylinder (303), then the piston rod (304) generates acting force opposite to the impact force of the water flow on the measuring cylinder (2) and offsets the acting force with the impact force of the water flow, so that the measuring cylinder (2) can be vertically positioned in water;

s5: after the water level of the channel is measured, the dredging component is started to stir the silt deposited around the bottom of the counterweight plate (4) at the moment, so that the silt in the channel is in a suspended state, and then the suspended silt is taken away by water flow, so that the water depth of the channel can be measured;

s6: and finally, calculating the data measured by the channel to obtain the water level, the water depth and the silt depth of the channel.

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