A fish school regional water sampling device and method based on a sonar

Abstract

The application belongs to the technical field of water sampling equipment, and particularly relates to a fish school regional water sampling device and method based on a sonar. The device comprises a support, an intermediate ring cylinder is fixedly arranged in the support, a filter screen is arranged on the inner side wall and the outer side wall of the intermediate ring cylinder, an extraction cylinder is rotatably connected to the middle part of the intermediate ring cylinder, and the top end of the extraction cylinder is in communication with a double-way water pump. The device can avoid fish school interference during water sampling, and the probability of the blocking of the isolation net is greatly reduced. The device can rotate the extraction cylinder without obstruction to extract water, and can ensure the stability during water pumping and facilitate water pumping. The device can further prevent the blocking of the isolation net during water pumping, can avoid water interference, can reduce the attachment of pollutants on the outer filter screen, and can ensure long-term stable operation of the sampling device.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water sampling equipment, and particularly relates to a fish school regional water sampling device and method based on a sonar. BACKGROUND

[0002] The purpose of water sampling with fish schools is to evaluate the ecological health of the water body and the status of fish resources by analyzing water quality and fish school conditions. It helps to monitor water quality changes, judge whether the water area is suitable for fish growth, support fishery resource management, identify pollution sources, and provide data for studying the balance of the ecological system and the impact of climate change on aquatic ecology.

[0003] A pond fish farming water quality sampling device is disclosed in Chinese Patent No. 202420924174.6, which comprises a support plate, a protection box fixedly connected to the bottom of the support plate, a control assembly installed in the protection box, a sampling assembly installed at the bottom of the protection box, the control assembly comprising a motor installed on the top inner wall of the protection box, a gear sleeve connected to the surface of the motor output shaft, a U-shaped insertion frame connected to the surface of the gear, and a U-shaped storage frame slidingly connected to one side of the U-shaped insertion frame. The patent sets up a control assembly and a sampling assembly. When water sampling is required, the motor is started to move the U-shaped insertion frame, which in turn moves the U-shaped storage frame, so that the rotating rod drives the double doors to rotate to control whether the double doors are opened or closed. The opening and closing of the double doors can meet the two conditions of filtering impurities and not filtering impurities during sampling, thereby improving the application range of the device.

[0004] During the process of sampling the fish school regional water body, the external filter screen is often blocked due to the influence of fish school feces and other factors, causing difficulty in sampling. At the same time, it is inconvenient to adjust the direction of the conventional equipment for water sampling in different directions. Moreover, when sampling the fish school regional water body, the water body data obtained is not true due to the interference of the water body inside the sampling equipment, and the equipment is in water for a long time, which can easily cause contamination and other problems such as blockage and equipment damage. SUMMARY

[0005] In order to solve the problems in the prior art, the fish school regional water sampling device and method based on a sonar are provided.The sonar mechanism, the intermediate ring cylinder and the isolation sleeve are matched, so that the fish school interference can be avoided during the water sampling process, and the probability of the isolation net blockage is greatly reduced.The intermediate ring cylinder, the extraction cylinder and the support are matched, so that the extraction cylinder can be rotated without obstruction to extract water, the stability during water pumping can be ensured, and the water pumping is facilitated.The extraction cylinder and the isolation sleeve are matched, so that the isolation net blockage can be further prevented during the water pumping process under the action of the bidirectional water pump, the water interference can be avoided, the pollutant adhesion of the outer filter screen can be reduced, and the sampling equipment can be stably operated for a long time.

[0006] In order to achieve the above object, the technical scheme is adopted as follows:

[0007] The fish school regional water sampling device based on a sonar comprises a support, an intermediate ring cylinder is fixedly installed in the inside of the support, and a filter screen is arranged on the inner side wall and the outer side wall of the intermediate ring cylinder; an extraction cylinder is rotatably connected to the middle part of the intermediate ring cylinder, and the top end of the extraction cylinder is communicated with a bidirectional water pump; an isolation sleeve is sleeved on the outside of the intermediate ring cylinder, and the upper end of the isolation sleeve is fixedly connected with the extraction cylinder through a connecting plate; an isolation net is arranged on the isolation sleeve, a sonar mechanism is arranged on the periphery of the isolation sleeve, the sonar mechanism comprises a first base fixed on the isolation sleeve, a first sonar detector is installed on the first base, and the first base is located on the opposite side of the isolation net on the isolation sleeve; a support ring is fixedly connected to the base, and the support ring is sleeved on the outside of the sleeve; a second base is fixedly connected to the support ring, and a second sonar detector is installed on the second base; and the second base is located on the same side of the isolation net.

[0008] Further, the support comprises a bottom disc, a plurality of support rods are fixedly connected to the bottom of the bottom disc, the ends of the support rods away from the bottom disc are fixedly connected with a mounting ring, the mounting ring is fixedly connected with the bottom of the intermediate ring cylinder through bolts, and a plurality of connecting seats are fixedly connected to the top of the bottom disc.

[0009] Further, the inside of the extraction cylinder is divided into four spaces, two of which are drainage spaces, one is a water inlet space, and the space opposite to the water inlet space is a closed space; a plurality of first one-way valves are uniformly installed on the side wall of the extraction cylinder adjacent to the water inlet space; a plurality of second one-way valves are uniformly installed on the partition plate between the water inlet space and the drainage space; the first one-way valve allows external water to enter the inside of the extraction cylinder, and the second one-way valve allows water in the water inlet space to enter the inside of the drainage space; a drainage net is arranged on the side wall of the extraction cylinder adjacent to the drainage space; the upper and lower ends of the extraction cylinder are fixedly connected with an upper limiting disc and a lower limiting disc, respectively, and the upper limiting disc and the lower limiting disc limit the extraction cylinder on the middle annular channel in the middle annular cylinder; an water suction pipe is fixedly and communicatively connected to the upper limiting disc, and the water suction pipe is in communication with the water inlet space.

[0010] Further, a transmission pipe is fixedly connected to the middle of the upper limiting disc, and the water suction pipe is fixedly and communicatively connected to the side wall of the transmission pipe through a branch pipe; an L-shaped butt joint pipe is fixedly and installed on the top middle of the bottom disc through a fixed pipe frame, one end of the L-shaped butt joint pipe is fixedly and communicatively connected to one end of a double-way water pump, the other end of the L-shaped butt joint pipe penetrates through the top middle of the bottom disc and is rotatably connected to the transmission pipe through a sealing bearing; the double-way water pump is fixedly installed on the top of the bottom disc, and the double-way water pump is fixedly and communicatively connected to a sampling hose away from the L-shaped butt joint pipe;

[0011] A driving motor is installed at the bottom of the bottom disc, and a first bevel gear is fixedly arranged on the output shaft of the driving motor; a second bevel gear is fixedly arranged on the outer wall of the transmission pipe, and the first bevel gear is engaged with the second bevel gear.

[0012] Further, a sealing cover is arranged outside the driving motor and the transmission pipe, and the sealing cover is fixedly installed at the bottom of the bottom disc.

[0013] Further, the middle annular cylinder comprises an inner cylinder, and the middle annular cylinder and the inner cylinder are evenly divided into four spaces by a partition plate, the inner side of each space is provided with an inner filter screen, and the outer side is provided with an outer filter screen; the four inner filter screens correspond to the four spaces of the extraction cylinder one by one; the top and bottom of the middle annular cylinder are closed by a closed ring.

[0014] Further, the isolation sleeve comprises a blocking arc block, the blocking arc block comprises a blocking arc block body, the upper end of the blocking arc block body is fixedly connected with the connecting plate, the connecting plate is fixedly connected with one side of the upper limiting disc of the extraction cylinder; the blocking arc block body is provided with a soft brush on the side close to the intermediate ring cylinder; the blocking arc block body is fixedly provided with rotating grooves at the left and right ends, and rotating rods are fixedly arranged on the rotating grooves; the rotating rods are rotatably connected with swing arc blocks, the swing arc blocks comprise a swing arc block body, a plurality of rotating lugs are fixedly arranged at one end of the swing arc block body, and the rotating lugs are sleeved on the rotating rods; torsional springs are sleeved on the rotating rods, and the two ends of the torsional springs are fixedly connected with the rotating lugs and the rotating rods respectively.

[0015] The isolation nets are arranged on the swing arc block bodies; and the swing arc block bodies are fixedly provided with connecting magnetic blocks at the ends away from the rotating lugs.

[0016] Further, the blocking arc block body isolates 1 / 4 of the outer wall of the intermediate ring cylinder; the swing arc block body isolates 3 / 8 of the outer wall of the intermediate ring cylinder; the two isolation nets are close to the magnetic blocks, and the two isolation nets correspond to one of the outer filter nets.

[0017] Further, when the torsional springs are in a normal state, the two swing arc block bodies and the blocking arc block body jointly form the isolation sleeve, and the two magnetic blocks are connected together.

[0018] The application also claims to protect a sampling method using the above-mentioned fish school regional water sampling device based on a sonar, comprising the following steps:

[0019] S1, periodically rotating the extraction cylinder and the isolation sleeve through the driving motor, when the first sonar detector detects that the fish school is the largest in quantity and the second sonar detector detects no fish school, fine-tuning the extraction cylinder and the isolation sleeve, so that the two isolation nets of the isolation sleeve correspond to the nearest outer filter net;

[0020] S2, extracting the water body through the bidirectional water pump, so that the water body is sequentially extracted from the isolation net, the outer filter net, the inner filter net, the first one-way valve, the water inlet space into the transmission pipe; then reversely extracting the water body through the bidirectional water pump, so that the water body is sequentially discharged from the transmission pipe, the water inlet space, the second one-way valve, the water discharge space, the water discharge net, the inner filter net and the outer filter net to avoid water body interference, so that the water body drives the swing arc block body to swing;

[0021] S3, cyclically performing the bidirectional water extraction operation until the sampling is completed, under the resetting action of the torsional spring, the swing arc block body continuously swings back and forth, so that the impurities on the isolation net fall off to prevent blockage;

[0022] S4, when the first sonar detector and the second sonar detector are positioned, the soft brush of the blocking arc block body continuously cleans the outer filter screen, and the attachment of the water body to the outer filter screen is washed off when the water is drained in step S2.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] (1) The present application can avoid fish interference in the process of water sampling by the cooperation of the sonar mechanism, the intermediate ring cylinder and the isolation sleeve, and the probability of isolation screen blockage is greatly reduced; specifically, when water sampling is needed, the extraction cylinder and the isolation sleeve are rotated, when the first sonar detector detects the most fish and the second sonar detector detects no fish, the extraction cylinder and the isolation sleeve are fine-tuned, so that the two isolation screens of the isolation sleeve correspond to the nearest outer filter screen, and then the water body is extracted by the bidirectional water pump; in this way, the sampled water body is always in an area without fish, and the nearby water body is also not in an area with the most fish, greatly reducing the influence of fish feces and other factors, thus avoiding fish interference in depth, and when the water body has no influence of fish feces and other factors, the probability of isolation screen blockage is greatly reduced during water sampling.

[0025] (2) The present application can rotate the extraction cylinder for water extraction without obstruction, and can ensure stability and facilitate extraction during water pumping by the cooperation of the intermediate ring cylinder, the extraction cylinder and the support; specifically, the installation ring is fixedly connected to the bottom of the intermediate ring cylinder by bolts, so that the intermediate ring cylinder is fixed in a supporting state on the support, at this time, when the driving motor on the upper limit disc drives the first bevel gear to rotate, the transmission pipe can rotate and drive the extraction cylinder to rotate for water extraction without any obstruction under the meshing of the second bevel gear; at the same time, due to the connection of the sealing bearing, the L-shaped butt joint pipe and the bidirectional water pump are always in a stationary state relative to the support regardless of the rotation of the transmission pipe, so as to facilitate the stable sampling work of the staff on the ship body and facilitate extraction.

[0026] (3) the present application can further prevent the isolation net from being blocked in the process of extracting water body under the action of the bidirectional water pump, and can also avoid water body interference, and can also reduce the attachment of pollutants on the outer filter screen, so that the sampling device can operate stably for a long time; specifically, when the water body is extracted by the bidirectional water pump, the water body enters the transmission pipe from the isolation net, the outer filter screen, the inner filter screen, the first one-way valve and the water inlet space in turn, so that the water body is extracted, at this time, the water body contains the water body remaining in the intermediate ring cylinder and the extraction cylinder, and has interference; at this time, the water body is extracted from the transmission pipe, the water inlet space, the second one-way valve, the drainage space, the drainage net, the inner filter screen and the outer filter screen in turn, so that the water body is extracted from the two drainage spaces corresponding to the outside, which not only discharges the interference water body, but also reduces the interference on the water body in the water inlet space corresponding to the outside during the discharge process; at this time, the water body will drive the swing arc block body to swing; the bidirectional water pumping operation is carried out in this way until the sampling is completed, and the swing arc block body swings back and forth under the reset action of the torsional spring, so that the impurities on the isolation net fall off to prevent blockage;

[0027] And, during the water body sampling process, when the first sonar detector and the second sonar detector are positioned, the soft brush of the blocking arc block body continuously cleans the outer filter screen, so that the attached pollutants on the outer filter screen are loosened, and the attached pollutants on the outer filter screen are also washed off by the water body during the above drainage, so that the attachment of pollutants is reduced, and the sampling device can operate stably for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The overall structure of the fish school regional water sampling device based on sonar of the present application is shown in the figure Figure 1 ;

[0029] Figure 2 The overall structure of the fish school regional water sampling device based on sonar of the present application is shown in the figure

[0030] Figure 3 The overall structure of the fish school regional water sampling device based on sonar of the present application is shown in the figure Figure 2 ;

[0031] Figure 4 The overall structure of the fish school regional water sampling device based on sonar of the present application is shown in the figure

[0032] Figure 5 The overall structure of the fish school regional water sampling device based on sonar of the present application is shown in the figure

[0033] Figure 6 The overall structure of the fish school regional water sampling device based on sonar of the present application is shown in the figure

[0034] Figure 7 Figure 1 is a schematic diagram of the extraction cylinder dispersion structure of a fish school regional water sampling device based on a sonar according to the present application;

[0035] Figure 8 Figure 2 is a schematic diagram of the local structure of the extraction cylinder of a fish school regional water sampling device based on a sonar according to the present application;

[0036] Figure 9 Figure 3 is a schematic diagram of the intermediate ring cylinder dispersion structure of a fish school regional water sampling device based on a sonar according to the present application;

[0037] Figure 10 Figure 4 is a schematic diagram of the isolation sleeve structure of a fish school regional water sampling device based on a sonar according to the present application; Figure 1

[0038] Figure 11 Figure 5 is a schematic diagram of the isolation sleeve structure of a fish school regional water sampling device based on a sonar according to the present application; Figure 2

[0039] The reference signs are as follows:

[0040] 100 - support; 110 - base plate; 120 - support rod; 130 - mounting ring; 140 - sealing cover; 150 - connecting seat; 200 - blocking arc block; 210 - blocking arc block body; 220 - connecting plate; 230 - rotating groove; 240 - rotating rod; 300 - sonar mechanism; 310 - first base; 320 - first sonar detector; 330 - support ring; 340 - second base; 350 - second sonar detector; 400 - swinging arc block; 410 - swinging arc block body; 411 - rotating ear plate; 420 - isolation net; 430 - connecting magnetic block; 440 - torsional spring; 500 - extraction cylinder; 501 - lower limit plate; 502 - upper limit plate; 503 - water suction pipe; 510 - drainage space; 511 - drainage net; 520 - water inlet space; 530 - second one-way valve; 540 - first one-way valve; 600 - bidirectional water pump; 610 - sampling hose; 620 - L-shaped butt joint pipe; 630 - fixed pipe rack; 640 - sealing bearing; 700 - driving motor; 710 - first bevel gear; 720 - second bevel gear; 730 - transmission pipe; 800 - intermediate ring cylinder; 810 - outer filter net; 820 - partition plate; 830 - inner cylinder; 831 - inner filter net; 840 - closed ring. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present application clearer, the following combines embodiments to make the present application further detailed. Of course, the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0042] ​​The steps in the present application are arranged with reference numerals, but are not used to limit the order of the steps, unless the order of the steps is explicitly stated or the execution of a certain step needs other steps as a basis, otherwise the relative order of the steps can be adjusted. It can be understood that the term "and / or" used herein relates to and covers any and all possible combinations of one or more of the associated listed items.

[0043] Embodiments

[0044] As Figures 1-11 shown, a fish school regional water body sampling device based on a sonar includes a support 100, an intermediate ring cylinder 800 is fixedly installed inside the support 100, and filter screens are arranged on the inner side wall and the outer side wall of the intermediate ring cylinder 800; a extraction cylinder 500 is rotatably connected to the middle part of the intermediate ring cylinder 800, and the top end of the extraction cylinder 500 is in communication with a double-way water pump 600; an isolation sleeve is sleeved outside the intermediate ring cylinder 800, and the upper end of the isolation sleeve is fixedly connected with the extraction cylinder 500 through a connecting plate 220; an isolation screen 420 is arranged on the isolation sleeve, and a sonar mechanism 300 is arranged on the periphery of the isolation sleeve, the sonar mechanism 300 includes a first base 310 fixed on the isolation sleeve, a first sonar detector 320 is installed on the first base 310, and the first base 310 is located on the isolation sleeve opposite to the isolation screen 420; a support ring 330 is fixedly connected to the base 310, and the support ring 330 is sleeved outside the sleeve; a second base 340 is fixedly connected to the support ring 330, and a second sonar detector 350 is installed on the second base 340; and the second base 340 is located on the same side of the isolation screen 420.

[0045] Through the cooperation of the sonar mechanism 300, the intermediate ring cylinder 500 and the isolation sleeve, the fish school interference can be avoided in the water body sampling process, and the probability of the isolation screen 420 being blocked is greatly reduced; specifically, when water body sampling is needed, the extraction cylinder 500 and the isolation sleeve are rotated, when the first sonar detector 320 detects that the number of fish schools is the largest and the second sonar detector 350 does not detect fish schools, the extraction cylinder 500 and the isolation sleeve are finely adjusted, so that the two isolation screens 420 of the isolation sleeve correspond to the nearest outer filter screen 810, and then the water body is extracted through the double-way water pump 600; in this way, the sampled water body is always in a region without fish schools, and the nearby water body is also not in a region with the largest number of fish schools, so that the influence of factors such as fish school excrement is greatly reduced, thereby the fish school interference can be avoided in depth, and when the water body has no influence of factors such as fish school excrement, the probability of the isolation screen 420 being blocked is greatly reduced during water body sampling.

[0046] It is worth mentioning that the sonar mechanism 300 and the subsequent power equipment involved are powered by an external power supply, which is not described in detail here.

[0047] Further, the support 100 comprises a bottom plate 110, a plurality of support rods 120 are fixedly connected around the bottom of the bottom plate 110, the ends of the support rods 120 away from the bottom plate 110 are fixedly connected with a mounting ring 130, and the mounting ring 130 is fixedly connected with the bottom of the intermediate ring cylinder 800 through bolts; a plurality of connecting seats 150 are fixedly connected to the top of the bottom plate 110.

[0048] It is worth mentioning that the support 100 can be fixed on the sampling ship body or other external supports through the connecting seat 150, and can be adjusted according to the actual situation; at the same time, the length of the support rod 120 can be flexibly changed according to the actual sampling water depth requirement, and the size of the drawing is only a schematic diagram, and the size is not further limited, and is a conventional adjustment, which is not described in detail here.

[0049] Further, the inside of the extraction cylinder 500 is divided into four spaces in a ring shape, two of which are drainage spaces 510, one is a water inlet space 520, and the space opposite to the water inlet space 520 is a closed space; a plurality of first one-way valves 540 are uniformly installed on the side wall of the extraction cylinder 500 adjacent to the water inlet space 520; a plurality of second one-way valves 530 are uniformly installed on the partition plate between the water inlet space 520 and the drainage space 510; the first one-way valve 540 allows external water to enter the inside of the extraction cylinder 500, and the second one-way valve 530 allows water in the water inlet space 520 to enter the inside of the drainage space 510; a drainage net 511 is arranged on the side wall of the extraction cylinder adjacent to the drainage space 510; the upper and lower ends of the extraction cylinder 500 are fixedly connected with an upper limiting disc 502 and a lower limiting disc 501, respectively, and the upper limiting disc 502 and the lower limiting disc 501 limit the extraction cylinder 500 on the intermediate ring channel in the intermediate ring cylinder 800; an water pumping pipe 503 is fixedly connected to the upper limiting disc 502 and communicates with the water inlet space 520.

[0050] The intermediate ring cylinder 800, the extraction cylinder 500 and the support 100 are matched, so that the extraction cylinder 500 can be rotated without obstruction to extract water, and the stability during water pumping and the convenience of water pumping can be ensured; the details are described below.

[0051] Further, the upper limit disc 502 is fixedly connected with a transmission pipe 730 in the middle, the water pumping pipe 503 is fixedly communicated with the side wall of the transmission pipe 730 through a branch pipe; the top middle of the bottom disc 110 is fixedly installed with an L-shaped butt joint pipe 620 through a fixed pipe frame 630, one end of the L-shaped butt joint pipe 620 is fixedly communicated with one end of a double-way water pump 600, the other end of the L-shaped butt joint pipe 620 penetrates the top middle of the bottom disc 110 and is rotatably communicated with the transmission pipe 730 through a sealing bearing 640; the double-way water pump 600 is fixedly installed on the top of the bottom disc 110, and the double-way water pump 600 is fixedly communicated with a sampling hose 610 away from the L-shaped butt joint pipe 620.

[0052] The bottom of the bottom disc 110 is installed with a driving motor 700, and the output shaft of the driving motor is fixedly provided with a first bevel gear 710; the outer wall of the transmission pipe 730 is fixedly provided with a second bevel gear 720, and the first bevel gear 710 is engaged with the second bevel gear 720.

[0053] The installation ring 130 is fixedly connected with the bottom of the middle ring cylinder 800 through bolts, so that the middle ring cylinder 800 is fixed in a supporting state on the support 100, at this time, when the first bevel gear 710 is driven to rotate by the driving motor 700 on the upper limit disc 502, the transmission pipe 730 can rotate and drive the extraction cylinder 500 to rotate for water extraction under the engagement of the second bevel gear 720 without any obstruction; at the same time, due to the connection of the sealing bearing 640, the L-shaped butt joint pipe 620 and the double-way water pump 600 are always in a stationary state relative to the support 100 no matter how the transmission pipe 730 rotates, so that the staff can conveniently and stably perform sampling work on the ship body and conveniently extract.

[0054] It is worth noting that the double-way water pump 600 can pump water in the forward direction and in the reverse direction, which is a mature technology, and the sampling hose 610 can be communicated with an external sampling container, which will not be described in detail.

[0055] Further, the driving motor 700 and the transmission pipe 730 are externally sleeved with a sealing cover 140, and the sealing cover 140 is fixedly installed on the bottom of the bottom disc 110.

[0056] It is worth noting that the sealing cover 140 protects the driving motor 700 from being damaged by immersion, and the connection of the sealing cover 140 can be further sealed by a sealing strip and a rotary sealing ring, which is a conventional setting and will not be described in detail.

[0057] Further, the intermediate ring cylinder 800 comprises an inner cylinder 830, and the intermediate ring cylinder 800 and the inner cylinder 830 are uniformly divided into four spaces by a partition plate 820, and the inner side of each space is provided with an inner filter screen 831, and the outer side is provided with an outer filter screen 810; the four inner filter screens 831 correspond to the four spaces of the extraction cylinder 500 one by one; and the top and bottom of the intermediate ring cylinder 800 are closed by a closing ring 840.

[0058] The present application can further prevent the blockage of the isolation screen 420 during the extraction of the water body under the action of the bidirectional water pump 600, and can also avoid the interference of the water body, and can also reduce the attachment of pollutants to the outer filter screen 810, so that the sampling equipment can operate stably for a long time.

[0059] Further, the isolation sleeve comprises a blocking arc block 200, the blocking arc block 200 comprises a blocking arc block body 210, the upper end of the blocking arc block body 210 is fixedly connected with a connecting plate 220, and the connecting plate 220 is fixedly connected with one side of the upper limiting disc 502 of the extraction cylinder 500; the blocking arc block body 210 is provided with a soft hair brush on the side close to the intermediate ring cylinder 800; the blocking arc block body 210 is fixedly provided with a rotating groove 230 at the left and right ends, and a rotating rod 240 is fixedly arranged on the rotating groove 230; the rotating rod 240 is rotatably connected with a swing arc block 400, the swing arc block 400 comprises a swing arc block body 410, one end of the swing arc block body 410 is fixedly provided with a plurality of rotating ear plates 411, and the rotating ear plates 411 are sleeved on the rotating rod 240; a torsional spring 440 is sleeved on the rotating rod 240, and the two ends of the torsional spring 440 are fixedly connected with the rotating ear plates 411 and the rotating rod 240 respectively.

[0060] The isolation screen 420 is arranged on the swing arc block body 410; and the swing arc block body 410 is fixedly provided with a connecting magnetic block 430 at the end away from the rotating ear plate 411.

[0061] When the water body is extracted by the bidirectional water pump 600, the water body enters the transmission pipe 730 from the isolation net 420, the outer filter net 810, the inner filter net 831, the first one-way valve 540 and the water inlet space 520 in sequence and is extracted, at this time, the water body contains the water body remaining in the intermediate ring cylinder 800 and the extraction cylinder 500, and has interference; at this time, the water body is extracted by the bidirectional water pump 600 in reverse, so that the water body is discharged from the transmission pipe 730, the water inlet space 520, the second one-way valve 530, the water discharge space 510, the water discharge net 511, the inner filter net 831 and the outer filter net 810 in sequence, at this time, the water body is discharged from the two water discharge spaces 510 to the outside, that is, the interference water body is discharged, and the discharge process reduces the interference on the water body outside the water inlet space 520; at this time, the water body drives the swing arc block body 410 to swing when being discharged; the bidirectional water extraction operation is circularly performed until sampling is completed, the swing arc block body 410 continuously swings back and forth under the resetting action of the torsional spring 440, so that the impurities on the isolation net 420 fall off to prevent blockage.

[0062] Moreover, during the water body sampling process, when the first sonar detector 320 and the second sonar detector 350 are positioned, the soft brush of the blocking arc block body 210 continuously cleans the outer filter net 810, so that the attached pollutants on the outer filter net 810 are loosened, and the attached pollutants on the outer filter net 810 can be washed off by the water body during the above water discharge, so that the attachment of the pollutants is reduced, and the sampling device can be stably operated for a long time.

[0063] Further, the blocking arc block body 210 isolates 1 / 4 of the outer wall of the intermediate ring cylinder 800; the swing arc block body 410 isolates 3 / 8 of the outer wall of the intermediate ring cylinder 800; the two isolation nets 420 are close to one side of the magnetic block 430, and the two isolation nets 420 correspond to one outer filter net 810. Through such size design, it is ensured that the blocking arc block body 210 can completely block the side with the most fish, and the isolation net corresponds to the outer filter net 810 on the side without fish.

[0064] Further, when the torsional spring 440 is in a normal state, the two swing arc block bodies 410 and the blocking arc block body 210 form an isolation sleeve, and the two magnetic blocks 430 are connected together.

[0065] It is worth noting that the magnetic block 430 can improve the stability and sealing, and when the torsional spring 440 is twisted, the connection between the two magnetic blocks 430 can also be quickly disconnected.

[0066] A sampling method using the above fish group regional water body sampling device based on a sonar, comprising the following steps:

[0067] S1, periodically rotating the extraction cylinder 500 and the isolation sleeve by the driving motor 700, when the first sonar detector 320 detects the largest number of fish and the second sonar detector 350 detects no fish, fine-tuning the extraction cylinder 500 and the isolation sleeve, so that the two isolation nets 420 of the isolation sleeve correspond to the nearest outer filter net 810;

[0068] S2, extracting the water body by the bidirectional water pump 600, so that the water body enters the transmission pipe 730 from the isolation net 420, the outer filter net 810, the inner filter net 831, the first one-way valve 540 and the water inlet space 520 in turn and is extracted; then the water body is extracted in reverse by the bidirectional water pump 600, so that the water body is discharged from the transmission pipe 730, the water inlet space 520, the second one-way valve 530, the water discharge space 510, the water discharge net 511 and the inner filter net 831 in turn, and the water body is prevented from being disturbed, so that the water body drives the swing arc block body 410 to swing;

[0069] S3, the bidirectional water extraction operation is circularly performed until the sampling is completed, the swing arc block body 410 continuously swings back and forth under the reset action of the torsion spring 440, so that the impurities on the isolation net 420 fall off to prevent blockage;

[0070] S4, when the first sonar detector 320 and the second sonar detector 350 are positioned, the soft brush of the blocking arc block body 210 continuously cleans the outer filter net 810, and the water body washes off the attachments on the outer filter net 810 when the water is discharged in step S2.

[0071] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the concept of the present application, several improvements and changes can be made, which are all within the protection scope of the present application.

Claims

1. A fish school regional water body sampling device based on a sonar, characterized by, The utility model provides a kind of water purifying device, including support (100), the inside fixed mounting of support (100) is with intermediate cylinder (800), the inside wall and outside wall of intermediate cylinder (800) are provided filter screen;The middle part of intermediate cylinder (800) is rotatably connected with extraction cylinder (500), and the top end of extraction cylinder (500) is communicated with two-way water pump (600);The outside of intermediate cylinder (800) is sleeved with isolation sleeve, and the upper end of isolation sleeve is fixedly connected with extraction cylinder (500) by connecting plate (220);Isolation net (420) is provided on the isolation sleeve, and sonar mechanism (300) is provided on the periphery of the isolation sleeve, and the sonar mechanism (300) includes the first base (310) fixed on the isolation sleeve, and the first base (310) is installed with the first sonar detector (320), and the first base (310) is located on the opposite side of the isolation sleeve on the isolation net (420);Base (310) is fixedly connected with support ring (330), and support ring (330) is sleeved outside the sleeve; Second base (340) is fixedly connected on support ring (330), and second base (340) is installed with second sonar detector (350);Second base (340) is located on the same side of isolation net (420); The support (100) includes bottom disc (110), and the bottom of the bottom disc (110) is fixedly connected with a plurality of support bars (120) around, and the end portion of the support bar (120) away from the bottom disc (110) is fixedly connected with mounting ring (130) in common, and the mounting ring (130) is fixedly connected with the bottom of intermediate cylinder (800) by bolt;The top of the bottom disc (110) is fixedly connected with a plurality of connecting seats (150); The inside of the extraction cylinder (500) is annularly separated into four spaces, including two drainage spaces (510) and one water inlet space (520), and the space opposite to the water inlet space (520) is closed space;A plurality of first one-way valves (540) are uniformly installed on the side wall of the extraction cylinder (500) adjacent to the water inlet space (520);A plurality of second one-way valves (530) are uniformly installed on the partition plate between the water inlet space (520) and the drainage space (510);The first one-way valve (540) allows external water to enter the inside of the extraction cylinder (500), and the second one-way valve (530) allows the water in the water inlet space (520) to enter the inside of the drainage space (510);Drainage net (511) is provided on the side wall of the extraction cylinder adjacent to the drainage space (510);The upper end and the lower end of the extraction cylinder (500) are fixedly connected with upper limiting disc (502) and lower limiting disc (501) respectively, and the upper limiting disc (502) and the lower limiting disc (501) limit the extraction cylinder (500) in the intermediate cylinder (800) inside the intermediate annular channel;Water suction pipe (503) is fixedly communicated on the upper limiting disc (502), and the water suction pipe (503) is communicated with the water inlet space (520). The middle part of the upper limiting disc (502) is fixedly connected with a transmission pipe (730), and the water pumping pipe (503) is fixedly communicated with the side wall of the transmission pipe (730) through a branch pipe; the top middle part of the bottom disc (110) is fixedly installed with an L-shaped butt joint pipe (620) through a fixed pipe frame (630), one end of the L-shaped butt joint pipe (620) is fixedly communicated with one end of a double-way water pump (600), the other end of the L-shaped butt joint pipe (620) penetrates through the top middle part of the bottom disc (110) and is rotatably communicated with the transmission pipe (730) through a sealing bearing (640); the double-way water pump (600) is fixedly installed on the top of the bottom disc (110), and a sampling hose (610) is fixedly communicated with the double-way water pump (600) and away from the L-shaped butt joint pipe (620); The bottom of the bottom disc (110) is installed with a driving motor (700), and the output shaft of the driving motor is fixedly provided with a first bevel gear (710); the outer wall of the transmission pipe (730) is fixedly provided with a second bevel gear (720), and the first bevel gear (710) is meshed with the second bevel gear (720).

2. The fish school regional water body sampling device based on sonar according to claim 1, characterized in that, The driving motor (700) and the transmission pipe (730) are externally sleeved with a sealing cover (140), and the sealing cover (140) is fixedly installed on the bottom of the bottom disc (110).

3. The fish school regional water body sampling device based on sonar according to claim 1, characterized in that, The middle ring cylinder (800) comprises an inner cylinder (830), and the middle ring cylinder (800) and the inner cylinder (830) are evenly divided into four spaces through a partition plate (820), the inner side of each space is provided with an inner filter screen (831), and the outer side is provided with an outer filter screen (810); the four inner filter screens (831) correspond to the four spaces of the extraction cylinder (500) one by one; the top and bottom of the middle ring cylinder (800) are closed through a closing ring (840).

4. The fish school regional water body sampling device based on sonar according to claim 3, characterized in that, The isolation sleeve comprises a blocking arc block (200), the blocking arc block (200) comprises a blocking arc block body (210), the upper end of the blocking arc block body (210) is fixedly connected with a connecting plate (220), the connecting plate (220) is fixedly connected with one side of the upper limiting disc (502) of the extraction cylinder (500); the blocking arc block body (210) is provided with a soft brush on the side close to the middle ring cylinder (800); the blocking arc block body (210) is fixedly provided with a rotating groove (230) at the left and right ends, and a rotating rod (240) is fixedly arranged on the rotating groove (230); the rotating rod (240) is rotatably connected with a swing arc block (400), the swing arc block (400) comprises a swing arc block body (410), a plurality of rotating ear plates (411) are fixedly arranged at one end of the swing arc block body (410), and the rotating ear plates (411) are sleeved on the rotating rod (240); a torsional spring (440) is sleeved on the rotating rod (240), and the two ends of the torsional spring (440) are fixedly connected with the rotating ear plates (411) and the rotating rod (240) respectively. The isolation net (420) is arranged on the swing arc block body (410); the swing arc block body (410) is fixedly provided with a connecting magnetic block (430) away from one end of the rotating lug plate (411).

5. The fish school regional water body sampling device based on sonar according to claim 4, characterized in that, The blocking arc block body (210) isolates 1 / 4 of the outer wall of the middle ring cylinder (800); the swing arc block body (410) isolates 3 / 8 of the outer wall of the middle ring cylinder (800); the two isolation nets (420) are close to one side of the magnetic block (430), and the two isolation nets (420) correspond to one of the outer filter nets (810).

6. The fish school regional water body sampling device based on sonar according to claim 4, characterized in that, When the torsional spring (440) is in a normal state, the two swing arc block bodies (410) and the blocking arc block body (210) enclose an isolation sleeve, and the two magnetic blocks (430) are connected together.

7. A method of sampling using the fish school regional water body sampling device based on the sonar according to any one of claims 1 to 6, characterized in that, The method comprises the following steps: S1, periodically rotating the extraction cylinder (500) and the isolation sleeve through the driving motor (700), and when the first sonar detector (320) detects that the fish population is the largest and the second sonar detector (350) has no fish population, fine-tuning the extraction cylinder (500) and the isolation sleeve, so that the two isolation nets (420) of the isolation sleeve correspond to the nearest outer filter net (810); S2, extracting water bodies through the bidirectional water pump (600), so that the water bodies enter the transmission pipe (730) from the isolation net (420), the outer filter net (810), the inner filter net (831), the first one-way valve (540), the water inlet space (520) in sequence and are extracted; then the water bodies are extracted in reverse through the bidirectional water pump (600), so that the water bodies are discharged from the transmission pipe (730), the water inlet space (520), the second one-way valve (530), the water discharge space (510), the water discharge net (511), the inner filter net (831) and the outer filter net (810) in sequence to avoid water body interference, so that the water bodies drive the swing arc block body (410) to swing; S3, the bidirectional water extraction operation is circularly performed until sampling is completed, the swing arc block body (410) continuously swings back and forth under the reset action of the torsional spring (440), so that impurities on the isolation net (420) fall off to prevent blockage; S4, when the first sonar detector (320) and the second sonar detector (350) are positioned, the soft brush of the blocking arc block body (210) continuously cleans the outer filter net (810), and the water bodies in the water discharge in step S2 wash off the attachments on the outer filter net (810).

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