CN115943923A - Automatic cleaning device of incomplete bait excrement and urine of bottom of pool - Google Patents

Abstract

The invention discloses an automatic cleaning device for residual bait and excrement at the bottom of a pool, and relates to the aquatic product culture technology. Comprises a hydraulic device with a driving end, which is used for enabling the driving end to move in a reciprocating motion of moving up and down in a periodic water storage and drainage mode; the rotator is used for driving the conveyor to move intermittently according to the reciprocating motion of the driving end; and the conveyor is used for driving the cleaning strips arranged on the conveying surface of the conveyor to circularly remove the deposited filth at the bottom of the culture pond. The invention does not need to adopt electric driving equipment as a whole, thereby saving energy and protecting environment; and the stirring to the bottom of the pond in the cleaning process can be effectively reduced, the suspension of precipitated pollutants is well prevented, the water quality in the culture pond in the cleaning process is ensured, and the growth of largemouth black bass fries is facilitated.

Description

Automatic cleaning device of incomplete bait excrement and urine of bottom of pool

Technical Field

The invention relates to the aquatic product culture technology, in particular to an automatic cleaning device for residual baits and excrement at the bottom of a pool.

Background

The largemouth bass is a famous and excellent aquatic product, and has delicious taste, rich nutrition and no muscle prickling. The micropterus salmoides are carnivorous fishes, so the fry culture is different from other fishes, and the micropterus salmoides can be cultured into adult fishes through open culture and feed domestication culture. Open cultivation and feed acclimation are usually carried out in an indoor culture pond with running water. And the higher the stocking density is, the better the opening and feed domestication effects are.

The largemouth bass fry only eats the movable bait, so the initial cultivation uses zooplankton as the bait to feed. In the indoor cultivation process, most of the feed is frozen and fresh zooplankton and powder, and the feed is in a moving state in the falling process, so that the feed can be ingested by fish fries. However, the fry only eats a part of the total feeding amount, namely, part of bait sinks into the water bottom and cannot be eaten by the fry. As the feeding requirement of the bait is small for a plurality of times during the cultivation of the fry, the total feeding time is long, and a large amount of bait and excrement sink into the water bottom to form deposited filth inevitably along with the lapse of time. If the baits are not cleaned immediately, the pond water is easily damaged, and the fry is dead in quantity, so that dirt absorption becomes a necessary link for cultivating the largemouth black bass fry and the dirt absorption needs to be carried out repeatedly. From present pond clearance technical current situation, most device of decontaminating are all scraped the clearance through electric drive mechanism orders about the clearance subassembly to the filth thing of sediment at the bottom of the pool.

For example, CN216931486U discloses a cleaning device for a circulating water cultivation tank in a pond, which drives a cleaning sweeper through electric components such as a motor and a telescopic cylinder to sweep out deposited filth adhered in the pond body, and then removes the deposited filth in the pond through water circulation. However, the cleaning mode of the culture pond greatly stirs the water body and is not beneficial to the growth of the fry. And the cleaned deposited filth can cause the water quality to become turbid, can be removed in a long time, and is not beneficial to timely feeding the largemouth black bass fries.

Also like the automatic cleaning device of the aquaculture pond disclosed in publication number CN203709055U, the automatic cleaning device drives the scraper to move through the motor to scrape the deposited filth at the bottom of the pond. The whole time is short, which is beneficial to energy saving. However, the whole culture amount of the largemouth black bass fry is large, so that the area of the culture pond is large, and if the bottom of the culture pond is quickly cleaned, the deposited filth is stirred and suspended, so that the deposited filth is not easy to effectively clean. If the scraping mode of slow movement is adopted, the problem of high energy consumption exists.

In general, the existing culture pond cleaning device is difficult to meet the cleaning operation of a largemouth black bass fry culture pond. Therefore, the automatic cleaning device for the residual baits and the excrement at the bottom of the pool is provided.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides an automatic cleaning device for residual baits and dejecta at the bottom of a pool.

The invention relates to an automatic cleaning device for residual bait and excrement at the bottom of a pool, which comprises,

the hydraulic device is provided with a driving end and is used for enabling the driving end to move in a reciprocating motion of moving up and down in a periodic water storage and drainage mode;

the rotator is used for driving the conveyor to move intermittently according to the reciprocating motion of the driving end;

and the conveyor is used for driving the cleaning strips arranged on the conveying surface of the conveyor to circularly remove the deposited filth at the bottom of the culture pond.

The hydraulic power device comprises a water inlet pipe, a water storage barrel, a supporting barrel, a sliding rod, a first spring, a curved ruler rod and a ball seal; the supporting cylinder is fixedly arranged on the surface of the pond ridge at one end of the culture pond, the sliding rod is movably inserted in the supporting cylinder, and two ends of the sliding rod penetrate through and extend to the outer side of the supporting cylinder; one end of the sliding rod is fixedly connected with the water storage barrel, the other end of the sliding rod is fixedly provided with a connecting frame, and the connecting frame is used as a driving end; one end of the first spring is fixedly connected with the bottom of the water storage barrel, and the other end of the first spring is fixedly connected with the supporting barrel; the water inlet pipe is arranged on one side of the water storage barrel and communicated with the water storage barrel; the bottom of the water storage barrel is provided with a water discharge pipe, a ball seal is inserted in the water discharge pipe, the curved ruler rod is installed on the ridge surface at one end of the culture pond, and the curved ruler rod is fixedly connected with the ball seal through a pull rope.

The density of the ball seal is less than that of water; and a guide groove which inclines downwards towards the center direction of the drain pipe is arranged on the periphery of the drain pipe.

The side wall of the water storage barrel is provided with a water spraying and oxygen increasing structure consisting of a plurality of through holes arranged on the side wall of the water storage barrel.

The total water discharge of the through holes is 1/3-1/2 of the maximum water inflow of the water inlet pipe.

And the water inlet pipe is provided with a switch valve.

The rotator comprises a pressing wheel, a fixed rod, a movable rod and a ratchet wheel; the ratchet wheel is rotatably arranged in the culture pond through a rotating shaft, and the conveyor is connected with the rotating shaft; the pinch roller is rotatably arranged in the culture pond and rotatably arranged below the connecting frame through the connecting ring; one end of the fixed rod is fixedly arranged on one side of the pressing wheel, the other end of the fixed rod is rotatably arranged on one side of the rotating shaft, one end of the movable rod is hinged to the fixed rod, the other end of the movable rod extends into a ratchet gap of the ratchet wheel, and a second spring is jointly fixed between the fixed rod and the movable rod.

The conveyor comprises a first synchronous wheel, a second synchronous wheel and a synchronous belt; a synchronizing wheel fixed mounting is in the pivot, two synchronizing wheels rotate and install the one end of keeping away from a synchronizing wheel one in breeding the pond, the hold-in range is connected with synchronizing wheel one, two transmission of synchronizing wheel, cleaning strip fixed mounting is on the hold-in range.

At least two cleaning strips are arranged on the synchronous belt.

The bottom of breeding the pond is equipped with one and is used for collecting the dirty groove of the dirty thing of sediment that is cleared up out by the cleaning strip, the outside of breeding the pond is equipped with takes out dirty pump, it is linked together through connecting pipe and dirty groove of collection to take out dirty pump.

Advantageous effects

The invention has the advantages that: the water power device using water as power drives the rotator to drive the cleaning strips arranged on the conveyor to move intermittently so as to remove the deposited filth at the bottom of the pool. The whole machine does not need to adopt electric driving equipment, and is energy-saving and environment-friendly. The cleaning strips remove the deposited pollutants at the bottom of the pool in an intermittent moving mode, can effectively reduce the stirring of the cleaning process to the bottom of the pool, well prevent the deposited pollutants from suspending, ensure the water quality in the culture pool in the cleaning process, and are beneficial to the growth of largemouth jewfish fries.

Drawings

FIG. 1 is a schematic view of the installation structure of the cleaning apparatus of the present invention;

FIG. 2 is a schematic view of a hydro-power installation configuration of the present invention;

FIG. 3 is a schematic view of a rotator mounting structure of the present invention;

fig. 4 is a schematic view of a conveyor mounting structure of the present invention.

Wherein: 1-culture pond, 2-hydraulic device, 3-rotator, 4-cleaning strip, 5-transmitter, 6-sewage collecting tank, 11-pond ridge surface, 20-through hole, 21-water inlet pipe, 22-water storage barrel, 23-supporting barrel, 24-sliding rod, 25-spring I, 26-connecting frame, 27-curved rule rod, 28-ball seal, 29-switch valve, 31-connecting ring, 32-pressure wheel, 33-fixed rod, 34-movable rod, 35-spring II, 36-rotating shaft, 37-ratchet wheel, 51-synchronous wheel I and 52-synchronous belt.

Detailed Description

The invention is further described below with reference to examples, but not to be construed as in any way limiting the invention, which is intended to be covered by the claims of the invention, with only a limited number of modifications being possible by anyone within the scope of the claims.

Referring to fig. 1, the automatic cleaning device for residual bait and excrement at the bottom of a pool of the invention comprises two hydraulic devices 2, a rotator 3, a conveyor 5 and a cleaning strip 4. Wherein, the two hydraulic devices 2, the rotator 3 and the conveyer 5 are symmetrically arranged in the culture pond 1.

The hydraulic device 2 is provided with a driving end, and the driving end of the hydraulic device 2 moves in a reciprocating motion of moving up and down in a periodic water storage and drainage mode. The specific structure is as follows.

Referring to fig. 2, the hydraulic device 2 includes a water inlet pipe 21, a water storage tank 22, a support cylinder 23, a sliding rod 24, a first spring 25, a curved rod 27 and a ball seal 28. The supporting cylinder 23 is fixedly arranged on the pool ridge surface 11 at one end of the culture pond 1, the sliding rod 24 is movably inserted in the supporting cylinder 23, and two ends of the sliding rod 24 penetrate through and extend to the outer side of the supporting cylinder 23. One end of the sliding rod 24 is fixedly connected with the water storage barrel 22, the other end of the sliding rod 24 is fixedly provided with a connecting frame 26, and the connecting frame 26 serves as a driving end. One end of the first spring 25 is fixedly connected with the bottom of the water storage barrel 22, and the other end of the first spring 25 is fixedly connected with the supporting barrel 23. The water storage barrel 22 is supported by the elastic mounting structure consisting of the support barrel 23, the sliding rod 24 and the spring I25, so that the height positions of the water storage barrel can be different when the water storage amount is different. For example, when there is no water in the reservoir tank 22, its height is highest; when the reservoir 22 is full of water, its height is lowest.

The water inlet pipe 21 is disposed at one side of the water storage barrel 22, and the water inlet pipe 21 is communicated with the water storage barrel 22 for supplying water to the water storage barrel 22. The largemouth bass fry is cultured by using running water, so the water inlet pipe 21 can be connected with a water supply source of the running water, and a water supply device does not need to be additionally arranged. The water inlet pipe 21 is provided with a switch valve 29 to control the water flow rate, so as to change the water storage time of the water storage barrel 22, and further adjust the reciprocating period of the driving end of the hydraulic device 2.

The bottom of the water storage barrel 22 is provided with a water discharge pipe for discharging water in the water storage barrel 22. And the drainage speed of the drainage pipe in the embodiment is 2-5 times of the water supply speed of the water inlet pipe 21. Preferably, 3 times of the water is used to quickly drain the water in the water storage barrel 22, so that the phenomenon that the water storage barrel 22 is not emptied when the water is continuously supplied is prevented.

A ball seal 28 is inserted through the drain pipe. Specifically, the diameter of the ball seal 28 is smaller than the diameter of the drain pipe, and the diameter difference between the two is 1-5mm. Preferably 2mm, which can ensure the ball seal 28 to pass through the drain pipe effectively and avoid the problem of excessive water leakage caused by the excessive clearance between the ball seal 28 and the drain pipe. The ball seal 28 is less dense than water so that the ball seal 28 floats on the surface of the reservoir 22 after emerging from the drain to fully open the drain. The curved ruler rod 27 is arranged on the pond ridge surface 11 at one end of the culture pond 1, and the curved ruler rod 27 is fixedly connected with the ball seal 28 through a pull rope. Wherein the pull rope is a soft rope, such as a nylon rope. The periphery of the drain pipe is provided with a guide groove which is inclined downwards towards the center of the drain pipe, so that water in the water storage barrel 22 and the ball seal 28 can enter the drain pipe conveniently.

In addition, the side wall of the water storage barrel 22 is provided with a water spraying and oxygen increasing structure consisting of a plurality of through holes 20 arranged on the side wall of the water storage barrel 22, and the total water discharge amount of the through holes 20 is 1/3 of the maximum water inflow amount of the water inlet pipe 21. When the water in the water storage barrel 22 is discharged through the through holes 20, the contact area of the water and the air is increased, the water spraying and oxygen increasing effects are achieved, and the cultivation of largemouth bass fry is facilitated.

When the water inlet pipe 21 adds water into the water storage barrel 22, a part of the water in the water storage barrel 22 flows to the culture pond 1 through the through hole 20 and the gap between the ball seal 28 and the water outlet pipe; because the ball seal 28 is positioned in the drain pipe, the upper part of the ball seal is influenced by water pressure and limited by the pull rope, the ball seal 28 cannot float out of the drain pipe, the height position of the ball seal 28 relative to the culture pond 1 is fixed, the drain pipe is sealed, and therefore the other part of water can be accumulated in the water storage barrel 22. As water accumulates in the reservoir 22, the weight of the reservoir 22 increases, compressing the first spring 25 and lowering the reservoir 22 as a whole. When the water in the reservoir 22 is accumulated to a certain degree and the upper hemisphere of the ball seal 28 is exposed to the drain pipe, it will be completely separated from the drain pipe by the buoyancy of the water and float on the water surface. The water in the water storage barrel 22 is discharged to the culture pond 1 through the water discharge pipe. As the water in the water storage barrel 22 is gradually discharged, the water storage barrel 22 moves upwards under the resilience action of the first spring 25. When the ball seal 28 is re-inserted into the drain, the drain will be sealed. And as water continues to be added to the reservoir 22, the reservoir 22 will again descend. This is repeated as the reservoir 22 is continuously raised and lowered, thereby moving the drive end, i.e., the connecting frame 26, in a reciprocating motion that moves up and down.

Referring to fig. 3, the rotator 3 is adapted to drive the conveyor 5 to move intermittently in accordance with the reciprocating action of the driving end. Specifically, the rotator 3 includes a pressing wheel 32, a fixed lever 33, a movable lever 34, and a ratchet wheel 37. The ratchet wheel 37 is rotatably installed in the culture pond 1 through a rotating shaft 36, and the conveyor 5 is connected with the rotating shaft 36. A connecting ring 31 is arranged in the connecting frame 26, the connecting ring 31 is rotatably connected with the connecting frame 26, and one end of the connecting ring 31 far away from the connecting frame 26 is rotatably connected with the edge of the pressing wheel 32. To ensure that the rotation direction of the pressing wheel 32 is always the same direction after the pressing wheel 32 is pressed, the connection point between the connection ring 31 and the pressing wheel 32 can be shifted to one side perpendicular to the axis of the pressing wheel 32. The pinch roller 32 is rotatably mounted in the culture pond 1. One end of the fixing rod 33 is fixedly installed at one side of the pressing wheel 32, and the other end of the fixing rod 33 is rotatably installed at one side of the rotating shaft 36. One end of the movable rod 34 is hinged on the fixed rod 33, the other end of the movable rod 34 extends into the ratchet gap of the ratchet wheel 37, and a second spring 35 is jointly fixed between the fixed rod 33 and the movable rod 34.

When the connecting frame 26 of the hydraulic device 2 descends, the pressing wheel 32 is fixed, so that the pressing wheel 32 rotates under the action of the connecting ring 31, and the fixing rod 33 is driven to rotate to compress the second spring 35. The second spring 35 will exert a spring force on the movable rod 34. Because the movable rod 34 will not be separated from the gap between the ratchet wheels 37 under the positioning action of the small included angle surfaces of the ratchet teeth of the ratchet wheels 37, but because the fixed rod 33 rotates, the second spring 35 is continuously stressed to enable the movable rod 34 to continuously apply force to the ratchet teeth of the ratchet wheels 37, and finally the ratchet wheels 37 rotate, so that the first synchronizing wheel 51 of the conveyor 5 is driven to rotate. When the connecting frame 26 rises, the fixed rod 33 will also rise, and due to the resilience of the second spring 35, the movable rod 34 will be driven to reset, and when the movable rod 34 contacts with the back of the ratchet, i.e. the large included angle surface, the included angle of the surface is integrally obtuse-angled, so that the movable rod 34 can slide along the surface, and then fall into the gap of the previous ratchet in the rotating direction of the ratchet wheel 37, and the gap rotation of the ratchet wheel 37 is realized.

The conveyor 5 is used for driving the cleaning strips 4 arranged on the conveying surface of the conveyor to circularly remove the pollutants settled at the bottom of the culture pond 1.

Referring to fig. 4, the conveyor 5 includes a first timing wheel 51, a second timing wheel, and a timing belt 52. A synchronizing wheel 51 is fixedly arranged on the rotating shaft 36, a synchronizing wheel II is rotatably arranged at one end, far away from the synchronizing wheel 51, of the culture pond 1, a synchronizing belt 52 is in transmission connection with the synchronizing wheel 51 and the synchronizing wheel II, and two cleaning strips 4 are fixedly arranged on the synchronizing belt 52. The cleaning strips 4 are regular triangular prism strips, and one surface of each triangular prism strip is made of hard materials such as steel; others are soft, such as rubber or silica gel. The hard side is secured at both ends to a timing belt 52. The synchronous belts drive the cleaning strips 4 to scrape at the bottom of the tank, so that the cleaning of the deposited dirt at the bottom of the tank is realized. When two cleaning strips 4 are installed, the distance between the two cleaning strips 4 on the synchronous belt 52 is required to be consistent, so that the cleaning of the pool bottom is ensured to be uninterrupted during working.

The bottom of the culture pond 1 is provided with a sewage collecting groove 6 for collecting the deposited sewage cleaned by the cleaning strips 4, the outer side of the culture pond 1 is provided with a sewage pumping pump, and the sewage pumping pump is communicated with the sewage collecting groove 6 through a connecting pipe. Wherein, the connecting pipe extends to in the dirty groove 6 of collection and is located its bottom, has seted up a plurality of holes of taking out dirty on the connecting pipe to the realization is taken out the filth thing of the sediment of different positions in the dirty groove 6 of collection, can effectually avoid only taking out the problem of a large amount of water when taking out dirty to a position of the dirty groove 6 of collection.

The working principle of the invention is as follows: in the process of culturing the largemouth bass fries, outside running water is injected into the water storage barrel 22 through the water inlet pipe 21. A part of the water in the water storage bucket 22 flows to the culture pond 1 through the through hole 20 and the gap between the ball seal 28 and the drain pipe, and the other part of the water is accumulated in the water storage bucket 22. As water accumulates in the reservoir 22, the weight of the reservoir 22 increases, compressing the spring 25, the reservoir 22 descends as a whole, and the slide bar 24 also descends, causing the link 26 to also move downward.

When the connecting frame 26 descends, the pressing wheel 32 rotates, so that the fixing rod 33 is driven to rotate, and the second spring 35 is compressed. The spring force generated by the second spring 35 after being stressed acts on the movable rod 34, and the movable rod 34 transmits the force to the ratchet of the ratchet wheel 37, so that the ratchet wheel 37 finally rotates, the first synchronous wheel 51 is driven to rotate, and the synchronous belt 52 and the cleaning strip 4 mounted on the synchronous belt are driven to move by corresponding step length.

When the water in the reservoir 22 is accumulated to a certain degree and the upper hemisphere of the ball seal 28 is exposed out of the drain pipe, it will be completely separated from the drain pipe under the action of the buoyancy of the water and float on the water surface. At this time, the water in the water storage barrel 22 is discharged to the culture pond 1 through the water discharge pipe. As the water in the water storage barrel 22 is gradually drained, the water storage barrel 22 moves upwards under the resilience action of the first spring 25.

When the connecting frame 26 is lifted, the fixed rod 33 is also lifted, and the movable rod 34 is driven to reset due to the rebounding action of the second spring 35, so that the movable rod 34 can slide along the back of the ratchet and fall into the gap of the previous ratchet in the rotating direction of the ratchet wheel 37. And in this process, the ratchet teeth of the ratchet wheel 37 do not position the movable lever 34, and therefore, the ratchet wheel 37 is in a stationary state.

When the water in the reservoir 22 is emptied, the ball seal 28 will re-enter the drain, sealing the drain. And as water continues to be added to the reservoir 22, the reservoir 22 will drop again. So relapse, the water storage bucket 22 will rise and descend constantly to make ratchet 37 constantly clearance rotate, and then driven the removal of cleaning strip 4 and piled up the clearance that the realization is depositd filth to the bottom of the pool.

The cleaned sediment dirt enters the dirt collecting groove 6, and the sediment dirt in the dirt collecting groove 6 can be pumped out only by starting the dirt pumping pump at regular time, so that the sediment dirt at the bottom of the pool can be cleaned.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various changes and modifications without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims (10)

1. An automatic cleaning device for residual bait and excrement at the bottom of a pool is characterized by comprising,

the hydraulic power device (2) is provided with a driving end and is used for enabling the driving end to move in a reciprocating motion of up and down movement in a periodic water storage and drainage mode;

the rotator (3) is used for driving the conveyor (5) to move intermittently according to the reciprocating motion of the driving end;

the conveyor (5) is used for driving the cleaning strips (4) arranged on the conveying surface of the conveyor to circularly remove the deposited filth at the bottom of the culture pond (1).

2. The automatic cleaning device for residual bait and excrement on the bottom of a pool as claimed in claim 1, wherein the hydraulic device (2) comprises a water inlet pipe (21), a water storage barrel (22), a support barrel (23), a sliding rod (24), a first spring (25), a curved ruler rod (27) and a ball seal (28); the supporting cylinder (23) is fixedly arranged on a pool ridge surface (11) at one end of the culture pond (1), the sliding rod (24) is movably inserted into the supporting cylinder (23), and two ends of the sliding rod (24) penetrate through and extend to the outer side of the supporting cylinder (23); one end of the sliding rod (24) is fixedly connected with the water storage barrel (22), the other end of the sliding rod (24) is fixedly provided with a connecting frame (26), and the connecting frame (26) serves as a driving end; one end of the first spring (25) is fixedly connected with the bottom of the water storage barrel (22), and the other end of the first spring (25) is fixedly connected with the supporting barrel (23); the water inlet pipe (21) is arranged on one side of the water storage barrel (22), and the water inlet pipe (21) is communicated with the water storage barrel (22); the bottom of the water storage barrel (22) is provided with a water discharge pipe, a ball seal (28) is inserted into the water discharge pipe, the curved ruler rod (27) is installed on the pond ridge surface (11) at one end of the culture pond (1), and the curved ruler rod (27) is fixedly connected with the ball seal (28) through a pull rope.

3. The automatic cleaning device for bottom bait and excrement of claim 2 wherein the density of said ball seal (28) is less than that of water; the periphery of the drain pipe is provided with a guide groove which inclines downwards towards the center of the drain pipe.

4. The automatic cleaning device for residual bait and excrement at the bottom of the pool as claimed in claim 2, wherein the side wall of the water storage barrel (22) is provided with a water spraying and oxygen increasing structure consisting of a plurality of through holes (20) arranged on the side wall of the water storage barrel (22).

5. The automatic cleaning device for bottom bait and excrement of claim 4 wherein the total water discharge of said plurality of through holes (20) is 1/3-1/2 of the maximum water inflow of the water inlet pipe (21).

6. The automatic cleaning device for residual bait and excrement on the bottom of a pool as claimed in claim 2, wherein said inlet pipe (21) is provided with a switch valve (29).

7. The automatic cleaning device for bottom bait and excrement of claim 2 wherein the rotator (3) comprises a pressing wheel (32), a fixed rod (33), a movable rod (34) and a ratchet wheel (37); the ratchet wheel (37) is rotatably arranged in the culture pond (1) through a rotating shaft (36), and the conveyor (5) is connected with the rotating shaft (36); the pinch roller (32) is rotatably arranged in the culture pond (1), and the pinch roller (32) is rotatably arranged below the connecting frame (26) through a connecting ring (31); one end fixed mounting of dead lever (33) is in one side of pinch roller (32), the other end of dead lever (33) is rotated and is installed in one side of pivot (36), the articulated installation of one end of movable rod (34) is on dead lever (33), the other end of movable rod (34) extends to in the ratchet clearance of ratchet (37), just be fixed with spring two (35) between dead lever (33) and the movable rod (34) jointly.

8. The automatic cleaning device for bottom bait and excrement of claim 7 wherein said conveyor (5) comprises a first synchronizing wheel (51), a second synchronizing wheel and a synchronous belt (52); synchronizing wheel (51) fixed mounting is in pivot (36), synchronizing wheel two rotates and installs the one end of keeping away from synchronizing wheel (51) in breeding pond (1), hold-in range (52) are connected with synchronizing wheel (51), the two transmission of synchronizing wheel, cleaning strip (4) fixed mounting is on hold-in range (52).

9. The automatic cleaning device for residual bait and excrement on the bottom of a pool as claimed in claim 8, wherein at least two cleaning strips (4) are installed on the synchronous belt (52).

10. The automatic cleaning device for residual bait and excrement at the bottom of the pond according to claim 1, wherein a sewage collecting tank (6) for collecting precipitated pollutants cleaned by the cleaning strips (4) is arranged at the bottom of the culture pond (1), a sewage pumping pump is arranged at the outer side of the culture pond (1), and the sewage pumping pump is communicated with the sewage collecting tank (6) through a connecting pipe.

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