CN219182493U - Automatic cleaning device for residual bait and excrement at bottom of pool - Google Patents

Abstract

The utility model discloses an automatic cleaning device for residual bait and feces at the bottom of a pond, and relates to the aquatic product culture technology. The hydraulic device is provided with a driving end and is used for enabling the driving end to move in a reciprocating motion of up and down moving in a periodical water storage and drainage mode; a rotator for driving the conveyor to intermittently move according to the reciprocating motion of the driving end; and the conveyor is used for driving the cleaning strips arranged on the conveying surface to circularly remove the sediment pollutants at the bottom of the culture pond. The whole device does not need to adopt electric driving equipment, so that the device is energy-saving and environment-friendly; and the stirring of the bottom of the tank in the cleaning process can be effectively reduced, the deposited dirt is well prevented from suspending, the water quality in the culture tank in the cleaning process is ensured, and the growth of micropterus salmoides seedlings is facilitated.

Description

Automatic cleaning device for residual bait and excrement at bottom of pool

Technical Field

The utility model relates to an aquatic product culture technology, in particular to an automatic cleaning device for residual bait and feces at the bottom of a pond.

Background

The micropterus salmoides are excellent aquatic products, and have delicious taste, rich nutrition and no myogenic thorns. Because the largehead jewfish is carnivorous fish, the offspring seed cultivation is different from other fish, and the largehead jewfish offspring seed can be cultivated into adult fish with artificial pellet feed through open cultivation and feed domestication cultivation. Open cultivation and feed acclimatization are often carried out in indoor culture ponds with running water. And the larger the stocking density is, the better the opening and the feed domestication effect is.

Since the largemouth perch fries only ingest the movable baits, the zooplankton is used as the baits for feeding in the initial cultivation. In the indoor cultivation process, the feed is mainly fed by the ice fresh zooplankton and the powder, and the feed is in an active state in the falling process, so that the feed can be ingested by fish fries. However, the fish fry only ingests a part of the total feeding amount, namely, a part of the bait can sink into the water, but cannot be ingested by the fish fry. As the bait feeding requirements are small and repeated when the fries are cultivated, the total feeding time is long, and a large amount of bait and feces are inevitably immersed into the water bottom along with the time, so as to form precipitation pollutants. If the baits are not cleaned immediately, pool water is easily spoiled, and a great deal of fish fries die, so that dirt absorption becomes an essential link for cultivating the largehead jersey fries, and the process needs to be repeated. From the current state of the pond cleaning technology, most of the cleaning devices drive the cleaning assembly to scrape and clean the deposited pollutants at the bottom of the pond through an electric driving mechanism.

The utility model discloses a device of decontaminating for circulating water culture tank in pond as disclosed in publication No. CN216931486U, it is through motor, flexible cylinder etc. electric assembly drive clean, makes it sweep the sediment filth that adheres to in the cell body, and the sediment filth in the pond is got rid of through hydrologic cycle again. However, the water body is greatly stirred by the culture pond cleaning mode, which is not beneficial to the growth of fish fries. And the cleaned sediment can cause turbidity of water quality, and the sediment can be removed after a long time, so that the method is not beneficial to timely feeding the largemouth jewfish fries.

As another example, the automatic cleaning device for the culture pond disclosed by the publication number CN203709055U is used for scraping the deposited pollutants at the bottom of the pond by driving the scraping plate to move through the motor. The whole time is short, which is beneficial to energy saving. However, the large-mouth black weever seedlings have large integral cultivation amount, so that the area of a cultivation pond is also large, and if the bottom of the pond is cleaned quickly, the deposited filth is stirred so as to suspend the deposited filth, and the effective cleaning of the deposited filth is not facilitated. If a slow-moving scraping mode 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 the largemouth bass culture pond. Therefore, the automatic cleaning device for the feces of the residual baits at the bottom of the pool is provided.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an automatic cleaning device for the residual bait and excrement at the bottom of a pool, aiming at the defects of the prior art.

The utility model relates to an automatic cleaning device for the feces of residual baits 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 in a periodical water storage and drainage mode;

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

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

The hydraulic 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 support cylinder is fixedly arranged on a pool ridge surface at one end of the culture pool, the sliding rod is movably inserted into the support cylinder, and two ends of the sliding rod penetrate through and extend to the outer side of the support cylinder; one end of the sliding rod is fixedly connected with the water storage barrel, and the other end of the sliding rod is fixedly provided with a connecting frame which 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 at one side of the water storage barrel and is communicated with the water storage barrel; the bottom of the water storage barrel is provided with a drain pipe, a ball seal is inserted in the drain pipe, the curved ruler rod is arranged on the pool ridge surface at one end of the culture pool, 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; the periphery of the drain pipe is provided with a guide groove which inclines downwards towards the center direction of the drain pipe.

The side wall of the water storage barrel is provided with a water spraying and oxygenation structure composed 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 pinch roller, 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 is rotatably arranged below the connecting frame through the connecting ring; one end fixed mounting of dead lever is in one side of pinch roller, the other end of dead lever rotates one side of installing in the pivot, the one end of movable rod is articulated to be installed on the dead lever, the other end of movable rod extends to in the ratchet clearance of ratchet, just be fixed with spring two jointly between dead lever and the movable rod.

The conveyor comprises a first synchronizing wheel, a second synchronizing wheel and a synchronous belt; the first synchronizing wheel is fixedly arranged on the rotating shaft, the second synchronizing wheel is rotatably arranged at one end, far away from the first synchronizing wheel, of the culture pond, the synchronous belt is in transmission connection with the first synchronizing wheel and the second synchronizing wheel, and the cleaning strip is fixedly arranged on the synchronous belt.

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

The bottom of the culture pond is provided with a sewage collecting tank for collecting the precipitated sewage cleaned by the cleaning strips, the outer side of the culture pond is provided with a sewage pump, and the sewage pump is communicated with the sewage collecting tank through a connecting pipe.

Advantageous effects

The utility model has the advantages that: the water power hydraulic device drives the rotator to drive the cleaning strip arranged on the conveyer to intermittently move so as to remove the deposited dirt at the bottom of the pool. The whole device does not need to adopt electric driving equipment, and is energy-saving and environment-friendly. The cleaning strips remove the precipitated dirt at the bottom of the tank in an intermittent moving mode, so that the stirring of the bottom of the tank in the cleaning process can be effectively reduced, the precipitated dirt is well prevented from being suspended, the water quality in the culture tank in the cleaning process is ensured, and the growth of micropterus salmoides seedlings is facilitated.

Drawings

FIG. 1 is a schematic view of a cleaning apparatus according to the present utility model;

FIG. 2 is a schematic view of the mounting structure of the hydraulic machine of the present utility model;

FIG. 3 is a schematic view of the mounting structure of the rotator according to the present utility model;

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

Wherein: 1-cultivation pool, 2-hydraulic power device, 3-rotator, 4-cleaning bar, 5-conveyer, 6-dirt collecting tank, 11-bank 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-Qu Chegan, 28-ball seal, 29-switching valve, 31-connecting ring, 32-pinch roller, 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 utility model is further described below in connection with the examples, which are not to be construed as limiting the utility model in any way, but rather as falling within the scope of the claims.

Referring to fig. 1, the automatic cleaning device for the residual bait and the feces at the bottom of the pool comprises two hydraulic devices 2, a rotator 3, a conveyor 5 and a cleaning strip 4. Wherein, two waterpower devices 2, rotator 3 and conveyor 5 are all 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 in a way of periodically storing water and draining water. The specific structure is as follows.

Referring to fig. 2, the hydro-power device 2 includes a water inlet pipe 21, a water storage tank 22, a support cylinder 23, a slide rod 24, a first spring 25, a curved rod 27, and a ball seal 28. The support cylinder 23 is fixedly arranged on the pool ridge surface 11 at one end of the culture pool 1, the sliding rod 24 is movably inserted into the support cylinder 23, and both ends of the sliding rod 24 penetrate through and extend to the outer side of the support cylinder 23. One end of the sliding rod 24 is fixedly connected with the water storage barrel 22, and the other end of the sliding rod 24 is fixedly provided with a connecting frame 26, wherein 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 elastic mounting structure consisting of the supporting cylinder 23, the sliding rod 24 and the first spring 25 supports the water storage barrel 22, so that the height positions of the water storage barrel are different when the water storage amounts are different. For example, when the water storage tub 22 is anhydrous, its height position is highest; when the water storage tank 22 is full of water, its height position is the 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. Because the largemouth bass fries are cultivated by adopting running water, the water inlet pipe 21 can be connected with a water supply source of the running water without additional water supply devices. The water inlet pipe 21 is provided with a switch valve 29 to control the water flow, thereby changing the water storage time of the water storage barrel 22 and further adjusting the reciprocating period of the driving end of the water power device 2.

The bottom of the water storage tub 22 is provided with a drain pipe for draining water in the water storage tub 22. And the drain rate of the drain pipe in this embodiment is 2-5 times the water supply rate of the inlet pipe 21. Preferably, 3 times may be used to rapidly drain the water in the water storage tub 22, preventing the phenomenon that the water storage tub 22 is not drained when water is continuously supplied.

Ball seals 28 are inserted into 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 ball seal and the drain pipe is 1-5mm. The preferable 2mm can ensure that the ball seal 28 can effectively pass through the drain pipe, and can avoid the problem of overlarge water leakage caused by overlarge gap between the ball seal 28 and the drain pipe. The ball seal 28 has a density less than that of water so that the ball seal 28 floats on the water surface of the water storage tub 22 after being exposed from the drain pipe to fully open the drain pipe. The curved ruler rod 27 is arranged on the pool ridge surface 11 at one end of the culture pool 1, and the curved ruler rod 27 is fixedly connected with the ball seal 28 through a pull rope. Wherein, the stay cord is a soft rope such as 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 as to facilitate the water in the water storage barrel 22 and the ball seal 28 to enter the drain pipe.

In addition, the side wall of the water storage barrel 22 is provided with a water spraying and oxygenation structure formed by a plurality of through holes 20 formed in the side wall of the water storage barrel 22, and the total drainage of the through holes 20 is 1/3 of the maximum water inflow of the water inlet pipe 21. When the water in the water storage barrel 22 is discharged through the through hole 20, the contact area of the water and the air is increased, the effect of water spraying and oxygenation is achieved, and the cultivation of the largemouth bass offspring seeds is facilitated.

When the water inlet pipe 21 adds water into the water storage barrel 22, a part of water in the water storage barrel 22 flows to the culture pond 1 through the through hole 20 and a gap between the ball seal 28 and the drain pipe; because the ball seal 28 is positioned in the drain pipe, the upper part of the ball seal is affected by water pressure and limited by the pull rope, the ball seal 28 cannot float out of the drain pipe, and the height position of the ball seal 28 relative to the culture pond 1 is fixed, so that the drain pipe is sealed, and the other part of water can be accumulated in the water storage barrel 22. As water in the water reservoir 22 accumulates, the weight of the water reservoir 22 will increase, compressing the first spring 25 and lowering the water reservoir 22 as a whole. When the water in the water storage tank 22 is accumulated to a certain extent 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 action of the water buoyancy and float on the water surface. The water in the water storage tub 22 is discharged from a drain pipe into the culture pond 1. As the water in the water storage tub 22 is gradually discharged, the water storage tub 22 will also move upward under the rebound action of the first spring 25. When the ball seal 28 is again inserted into the drain, the drain will be sealed. And as water continues to be added to the water storage tank 22, the water storage tank 22 will descend again. The water storage tank 22 will rise and fall continuously, thereby driving the driving end, i.e. the connecting frame 26, to reciprocate up and down.

Referring to fig. 3, the rotator 3 is used to drive the conveyor 5 to intermittently move according to the reciprocating motion of the driving end. Specifically, the rotator 3 includes a pressing wheel 32, a fixed lever 33, a movable lever 34, and a ratchet 37. The ratchet wheel 37 is rotatably installed in the culture pond 1 through the rotating shaft 36, and the conveyor 5 is connected with the rotating shaft 36. The connecting frame 26 is provided with a connecting ring 31, the connecting ring 31 is rotationally connected with the connecting frame 26, and one end of the connecting ring 31 away from the connecting frame 26 is rotationally connected with the edge of the pinch roller 32. In order to ensure that the rotation direction of the pressing wheel 32 is always the same after being pressed, the joint of the connecting ring 31 and the pressing wheel 32 can be shifted to one side perpendicular to the axis of the pressing wheel 32. Pinch roller 32 is rotatably mounted in 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 a ratchet gap of the ratchet wheel 37, and a second spring 35 is fixed between the fixed rod 33 and the movable rod 34.

When the connecting frame 26 of the hydraulic device 2 descends, the pinch roller 32 is rotated under the action of the connecting ring 31 due to the fixed position of the pinch roller 32, so as to drive the fixing rod 33 to rotate, and compress the second spring 35. The spring force generated by the second spring 35 will act on the movable rod 34 after being stressed. The movable rod 34 will not separate from the gap between the ratchet wheels 37 under the positioning action of the small clamping angle surfaces of the ratchet wheels 37, but the second spring 35 continuously applies force to the ratchet wheels of the ratchet wheels 37 due to the continuous stress of the second spring 35 in the rotating process of the fixed rod 33, so that the ratchet wheels 37 finally rotate, and 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, the spring action of the second spring 35 will drive the movable rod 34 to reset, and when the movable rod 34 contacts the back surface of the ratchet, i.e. the surface with a large included angle, the movable rod 34 will slide along the surface because the included angle of the surface is in an obtuse angle shape, and then falls into the previous ratchet gap in the rotation direction of the ratchet wheel 37, so that 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 to circularly remove the sediment pollutants 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. The first synchronizing wheel 51 is fixedly arranged on the rotating shaft 36, the second synchronizing wheel is rotatably arranged at one end, far away from the first synchronizing wheel 51, of the culture pond 1, the synchronous belt 52 is in transmission connection with the first synchronizing wheel 51 and the second synchronizing wheel, and the two cleaning strips 4 are fixedly arranged on the synchronous 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; the other is soft, such as rubber or silica gel. The hard face is fixed at both ends to the timing belt 52. The synchronous belt drives the cleaning strip 4 to scrape at the bottom of the pool, so as to clean the sediment at the bottom of the pool. When the two cleaning strips 4 are installed, the distance between the two cleaning strips 4 on the synchronous belt 52 is ensured 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 tank 6 for collecting the deposited sewage which is cleaned by the cleaning strips 4, the outer side of the culture pond 1 is provided with a sewage pump, and the sewage pump is communicated with the sewage collecting tank 6 through a connecting pipe. Wherein, the connecting pipe extends to in the dirt collecting tank 6 and is arranged in its bottom, has seted up a plurality of dirt drawing holes on the connecting pipe to realize drawing out the sediment filth of different positions in the dirt collecting tank 6, can effectually avoid only drawing out the problem that a large amount of water can be taken out when dirty to a position of dirt collecting tank 6.

The working principle of the utility model is as follows: in the cultivation process of the micropterus salmoides fries, outside running water is injected into the water storage barrel 22 through the water inlet pipe 21. 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 drain pipe, and the other part of the water is accumulated in the water storage barrel 22. As water accumulates in the water reservoir 22, the weight of the water reservoir 22 will increase, compressing the first spring 25, the water reservoir 22 as a whole will descend, and the slide bar 24 will also descend, so that the link 26 will also follow the downward movement.

When the connecting frame 26 descends, the pinch roller 32 rotates, so as to drive the fixed rod 33 to rotate and compress the second spring 35. The spring force generated by the second spring 35 acts on the movable rod 34 after being stressed, and the movable rod 34 transmits the example to the ratchet teeth 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 arranged on the synchronous belt are driven to move by corresponding step sizes.

When the water in the water storage tank 22 is accumulated to a certain extent 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 action of the water buoyancy and float on the water surface. At this time, the water in the water storage tub 22 is discharged from the drain pipe into the culture pond 1. As the water in the water storage tub 22 is gradually discharged, the water storage tub 22 will also move upward under the rebound action of the first spring 25.

When the connecting frame 26 is lifted, the fixed rod 33 is lifted, and the spring of the second spring 35 drives the movable rod 34 to reset, so that the movable rod 34 can slide along the back of the ratchet and fall into the previous ratchet gap in the rotation direction of the ratchet wheel 37. And during 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 water storage tank 22 is emptied, the ball seal 28 will re-enter the drain pipe, sealing the drain pipe. And as water continues to be added to the water storage tank 22, the water storage tank 22 will descend again. The water storage barrel 22 is repeatedly lifted and lowered continuously, so that the ratchet wheel 37 is rotated continuously at intervals, and the cleaning strip 4 is driven to move, so that the deposited dirt at the bottom of the tank is removed and accumulated.

The cleaned deposited filth enters the sewage collecting tank 6, and the deposited filth in the sewage collecting tank 6 can be pumped out only by starting the sewage pumping pump at regular time, so that the deposited filth at the bottom of the tank is cleaned.

While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims (10)

1. The automatic cleaning device for the residual bait and the excrement at the bottom of the pool is characterized by comprising a hydraulic device (2), a rotator (3), a conveyor (5) and a cleaning strip (4); the water power device (2) is arranged at one end of the culture pond (1), the water power device (2) is provided with a water inlet end and a driving end extending into the culture pond (1), and the water inlet end introduces external water into the water power device (2) so as to drive the driving end to move in a reciprocating motion of moving up and down; the utility model discloses a cleaning device for the surface of a cultivation pond, including conveyer (5), cleaning strip (4), driving end, rotator (3) input and drive end connection, the output of rotator (3) is connected with the input of conveyer (5), cleaning strip (4) are installed on the conveying face of conveyer (5), just when cleaning strip (4) are in cultivation pond (1) bottom surface removal, cleaning strip (4) and the bottom surface contact of cultivation pond (1).

2. The automatic cleaning device for the residual bait and faeces at the bottom of the pool according to claim 1, wherein the hydraulic device (2) comprises a water inlet pipe (21), a water storage barrel (22), a supporting cylinder (23), a sliding rod (24), a first spring (25), a curved ruler rod (27) and a ball seal (28); the support cylinder (23) is fixedly arranged on a pool ridge surface (11) at one end of the culture pool (1), the sliding rod (24) is movably inserted into the support cylinder (23), and both ends of the sliding rod (24) penetrate through and extend to the outer side of the support 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) is used 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 at 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 drain pipe, a ball seal (28) is inserted in the drain pipe, the curved ruler rod (27) is arranged on a pool ridge surface (11) at one end of the culture pool (1), and the curved ruler rod (27) is fixedly connected with the ball seal (28) through a pull rope.

3. An automatic pool bottom bait and stool cleaning device as claimed in claim 2, wherein the density of the ball seals (28) is less than the density of water; the periphery of the drain pipe is provided with a guide groove which inclines downwards towards the center direction of the drain pipe.

4. The automatic cleaning device for residual bait and feces at the bottom of a pool according to claim 2, wherein the side wall of the water storage barrel (22) is provided with a water spraying and oxygenation structure consisting of a plurality of through holes (20) formed in the side wall of the water storage barrel (22).

5. An automatic cleaning device for residual bait and feces at the bottom of a pool according to claim 4, characterized in that the total water discharge of a plurality of through holes (20) is 1/3-1/2 of the maximum water intake of a water inlet pipe (21).

6. An automatic cleaning device for residual bait and feces at the bottom of a pool according to claim 2, characterized in that the water inlet pipe (21) is provided with a switch valve (29).

7. The automatic cleaning device for the residual bait and the feces at the bottom of the pool according to 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 the 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) rotates one side of installing in pivot (36), the one end of movable rod (34) articulates and installs 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) jointly between dead lever (33) and movable rod (34).

8. The automatic cleaning device for residual bait and feces at the bottom of a pool according to claim 7, wherein the conveyor (5) comprises a first synchronizing wheel (51), a second synchronizing wheel and a synchronous belt (52); the first synchronous wheel (51) is fixedly arranged on the rotating shaft (36), the second synchronous wheel is rotatably arranged at one end, far away from the first synchronous wheel (51), of the culture pond (1), the synchronous belt (52) is in transmission connection with the first synchronous wheel (51) and the second synchronous wheel, and the cleaning strip (4) is fixedly arranged on the synchronous belt (52).

9. The automatic cleaning device for residual bait and feces at the bottom of a pool according to claim 8, characterized in that at least two cleaning strips (4) are arranged on the synchronous belt (52).

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

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