Experimental fish farming equipment

Abstract

The present invention belongs to the technical field of aquaculture, and particularly relates to a fish breeding device for experiments, which comprises a breeding box, an assembly shaft arranged in the breeding box, a plurality of breeders rotatably connected to the assembly shaft, and a filter frame arranged in the breeding box. The breeder includes a breeding container and a filter plate arranged at the front end of the breeding container. The mass of the part of the breeding container located at the rear side of the assembly shaft is less than the mass of the part located at the front side of the assembly shaft. The filter frame is arranged at the lower side of the rear end of the breeding container to receive the objects poured out from the rear end of the breeding container. The breeding device can conveniently rotate the breeder to pour the fish and water into the filter frame in a dumping manner, so that the fish stays in the filter frame, and the water can flow back to the breeding box through the filter frame, so as to separate the fish from the water body and make it difficult for the fish to move. At this time, the experimenter can easily pick up the fish. Compared with the existing fishing and taking method, this taking method is simple to operate, has a high fish-taking efficiency, and is not easy to cause damage to the fish, and is suitable for laboratory use.

Description

Technical Field

[0001] The present invention belongs to the technical field of aquaculture, and particularly relates to a fish breeding device for experiments. Background Art

[0002] The similarity between the genes of zebrafish and human genes reaches 87%. In most cases, the results obtained from drug experiments on zebrafish are also applicable to the human body. The embryos of zebrafish are transparent, and it is easy to observe the effects of drugs on their internal organs. More and more laboratories introduce breeding equipment for breeding for experiments.

[0003] After breeding zebrafish in the laboratory, zebrafish will be taken out of the breeding equipment for experiments during the subsequent experiment process. The traditional way of taking out is to use a micro fishing net to salvage specific targets. However, the traditional breeding equipment is just a simple fish tank, and zebrafish have a wide range of activities in the fish tank. When salvaging, zebrafish will swim quickly to avoid being salvaged, so that it is difficult for experimenters to fish out the fish, and the efficiency of taking out the fish is low. Therefore, to solve this problem, we propose a fish breeding device for experiments. Summary of the Invention

[0004] To overcome the problems existing in the related art, the present invention discloses and provides a fish breeding device for experiments.

[0005] To achieve the above object, a technical solution adopted by the present invention is:

[0006] The fish breeding device for experiments includes a breeding box, a mounting shaft provided in the breeding box, a plurality of breeders rotatably connected to the mounting shaft, and a filter frame provided in the breeding box;

[0007] The breeder includes a breeding container that is sleeved on the mounting shaft from left to right and has a front-to-back through structure, and a filter plate provided at the front end of the breeding container. The mass of the part of the breeding container located behind the mounting shaft is less than the mass of the part located in front of the mounting shaft;

[0008] The filter frame is provided under the rear end of the breeding container for receiving objects poured out from the rear end of the breeding container.

[0009] Furthermore, the fish breeding device for experiments further includes a flushing mechanism. The flushing mechanism includes a water pump provided at the inner bottom of the breeding box, a liquid distribution pipe provided at the pump outlet of the water pump, a plurality of nozzles connected to the liquid distribution pipe and corresponding to each breeder one by one, and a control switch provided on the breeding box for controlling the on-off of the water pump.

[0010] Further, the nozzle includes a housing, a connection port communicating with the housing for connecting to the liquid distribution pipe, an assembly through groove opened at the lower end of the housing and communicating with the housing, a spray hole opened at the lower end of the housing and communicating with the housing, a sealing plate slidably connected in the housing and located below the connection port, a sliding member slidably connected in the assembly through groove and connected to the lower end of the sealing plate, a circulation hole opened at the lower end of the sealing plate and penetrating through the upper end of the sealing plate, and a first elastic member disposed above the sealing plate;

[0011] In the natural state, the first elastic member will push the sealing plate downward under its own elastic force in cooperation with the housing, so that the sealing plate abuts against the inner bottom wall of the housing. In this state, the upper end of the spray hole will be closed by the sealing plate, and the lower end of the circulation hole will be closed by the inner bottom wall of the housing;

[0012] The upper end of the filter plate can be rotated clockwise with the culture container until it abuts against the lower end of the sliding member. When the upper end of the filter plate abuts against the lower end of the sliding member, the lower end of the spray hole faces the filter plate.

[0013] Further, the control switch is a normally open push-button switch. When the control switch is pressed, the water pump is powered on and operates.

[0014] Further, sleeves for the assembly shaft to pass through are provided on both the left and right sides of the culture container.

[0015] Further, a first through hole and a second through hole for the assembly shaft to pass through are respectively opened on both the left and right sides of the culture box. First limiting members and second limiting members located outside the culture box are respectively fixedly connected to the left and right ends of the assembly shaft.

[0016] Further, the control switch is disposed at the left end of the culture container. A pressing plate for pressing the control switch is fixedly connected to the left end of the assembly shaft. The assembly shaft cannot rotate relative to the culture box, and the culture container cannot move along the axis direction of the assembly shaft relative to the assembly shaft. A top block is formed by the right end of the sleeve on the right side of each culture container protruding to the right. An inclined connection surface is provided between the top end of the top block and the end face of the sleeve. A convex plate fixedly connected to the assembly shaft is provided on the right side of the sleeve on the right side of each culture container. A second elastic member is sleeved outside the assembly shaft between the first limiting member and the culture box. The second elastic member can push the assembly shaft to the left under its own elastic force;

[0017] When the front part of the culture container abuts against the inner bottom of the culture box, each convex plate will abut against the right end of the sleeve on the right side of each culture container, and the control switch is not pressed by the pressing plate;

[0018] When the upper end of the filter plate rotates clockwise with the culture container and pushes the sliding member upward until the filter plate disengages from the inner bottom wall of the housing, the inclined connecting surface rotating with the culture container will push the corresponding convex plate to the right end of the top block, so that the convex plate drives the pressing plate to move to the right through the assembly shaft to press the control switch.

[0019] Further, the left side surface of the assembly shaft has a first limiting plane, and the inner side of the first through hole has a second limiting plane. The second limiting plane cooperates with the first limiting plane to limit the rotation of the assembly shaft relative to the culture tank.

[0020] Further, the pressing plate has a third through hole for assembling with the assembly shaft. The pressing plate is sleeved outside the assembly shaft through the third through hole and is located between the second elastic member and the first limiting member. The inner side of the third through hole has a third limiting plane, and the third limiting plane cooperates with the first limiting plane to limit the rotation of the pressing plate relative to the assembly shaft.

[0021] Further, a handle is hinged to a part of the culture container in front of the assembly shaft.

[0022] The present invention discloses an experimental fish culture device. This culture device can conveniently rotate the culture vessel to pour fish and water into the filter frame in a dumping manner, leaving the fish in the filter frame, enabling the water to flow back to the culture tank through the filter frame, so that the fish is separated from the water body and it is difficult for the fish to move. At this time, the experimenter can easily pick up the fish. Compared with the existing fishing and taking-out methods, this taking-out method is simple to operate, has a high fish-taking efficiency, and is not easy to cause damage to the fish, making it suitable for laboratory use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0024] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0025] Figure 2 is Figure 1 a schematic enlarged view of the structure at A in

[0026] Figure 3 is Figure 2 a schematic enlarged view of the structure at B in

[0027] Figure 4 is a schematic cross-sectional structural diagram of the first embodiment of the present invention;

[0028] Figure 5 The Figure 4 schematic enlarged view of the structure at position C in

[0029] Figure 6 The Figure 4 schematic enlarged view of the structure at position D in

[0030] Figure 7 The Figure 6 schematic enlarged view of the structure at position E in

[0031] Figure 8 The second cross-sectional structure schematic diagram of an embodiment of the present invention;

[0032] Figure 9 The Figure 8 schematic enlarged view of the structure at position F in

[0033] Figure 10 The Figure 9 schematic enlarged view of the structure at position H in

[0034] Figure 11 The Figure 8 schematic enlarged view of the structure at position G in

[0035] Figure 12 The structure schematic diagram of the breeding box in an embodiment of the present invention;

[0036] Figure 13 The exploded view of the breeding device in an embodiment of the present invention;

[0037] Figure 14 The structure schematic diagram of the assembly shaft in an embodiment of the present invention;

[0038] Figure 15 The structure schematic diagram of the U-shaped frame in an embodiment of the present invention;

[0039] Figure 16 The structure schematic diagram of the pressing plate in an embodiment of the present invention;

[0040] Figure 17 The structure schematic diagram of the filter frame placement rack in an embodiment of the present invention.

[0041] The meanings of the reference numerals in the drawings are:

[0042] Cultivation box 1, first through hole 11, second limiting plane 111, second through hole 12, rectangular opening 13, support feet 14, U-shaped frame 15, filter frame placement rack 16, assembly shaft 2, first limiting member 21, second limiting member 22, pressing plate 23, third through hole 231, third limiting plane 2311, convex plate 24, second elastic member 241, first limiting plane 25, cultivator 3, cultivation container 31, sleeve 311, top block 3111, inclined connecting surface 3112, handle 312, filter plate slot 313, limiting plate 314, filter plate 32, filter frame 4, water pump 5, liquid distribution pipe 51, spray head 52, housing 521, connection port 522, assembly through slot 523, spray hole 524, sealing plate 525, sliding member 526, flow through hole 527, first elastic member 528, control switch 53, cultivation space 6. Detailed implementation mode

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] Refer to Figure 1-17 As shown, the experimental fish cultivation equipment shown in this embodiment includes a cultivation box 1, an assembly shaft 2 arranged in the cultivation box 1, a plurality of cultivators 3 rotatably connected to the assembly shaft 2, and a filter frame 4 arranged in the cultivation box 1.

[0045] In this embodiment, the cultivation box 1 is used to store the water for cultivation. The cultivation box 1 is in the shape of a cuboid, and a rectangular opening 13 is provided in the upper part of its front side for objects to enter and exit. A plurality of support feet 14 are provided at its lower end to lift the entire cultivation box 1 off the placement plane, so as to facilitate reaching under the cultivation box 1 with hands, and further facilitate moving the entire cultivation equipment. It is worth mentioning that the cultivation box 1 is made of a transparent material to facilitate observing the internal cultivation situation.

[0046] In this embodiment, a first through hole 11 and a second through hole 12 for the assembly shaft 2 to pass through are respectively provided on the left and right sides of the cultivation box 1. The assembly shaft 2 passes through the first through hole 11 and the second through hole 12 to be connected to the cultivation box 1. A first limiting member 21 and a second limiting member 22 located outside the cultivation box 1 are respectively fixedly connected to the left and right ends of the assembly shaft 2. In this embodiment, both the first limiting member 21 and the second limiting member 22 are nuts threadedly connected to the assembly shaft 2, and such a setting is used to limit the assembly shaft 2 from detaching from the cultivation box 1.

[0047] In this embodiment, the cultivator 3 includes a cultivation container 31 that is sleeved on the assembly shaft 2 from left to right and has a front-to-back through structure, and a filter plate 32 provided at the front end of the cultivation container 31. The mass of the part of the cultivation container 31 located at the rear side of the assembly shaft 2 is less than the mass of the part located at the front side of the assembly shaft 2. In this way, the front end of the cultivation container 31 will be in contact with the inner bottom of the cultivation tank 1 under the action of gravity. In this state, the bottom of the cultivation container 31 will be in an inclined state from back to front and from top to bottom. In this way, it can cooperate with the filter frame 4 to enclose a cultivation space 6. It is worth mentioning that, in this embodiment, the cultivation container 31 has a semi-trapezoidal structure with a larger front and a smaller rear. Such a setting can obtain a larger cultivation space 6 while saving materials.

[0048] In this embodiment, both the left and right sides of the cultivation container 31 are provided with sleeves 311 through which the assembly shaft 2 passes. The cultivation container 31 is sleeved on the assembly shaft 2 through the sleeves 311 on the left and right sides, so that the cultivator 3 is rotatably connected to the assembly shaft 2.

[0049] In this embodiment, the filter frame 4 is provided at the lower side of the rear end of the cultivation container 31 to receive the objects poured out from the rear end of the cultivation container 31. It is worth mentioning that a plurality of filter frame placement racks 16 are fixedly connected to the inner front wall of the cultivation tank 1. The filter frame placement racks 16 are used to receive the filter frame 4 and, at the same time, cooperate with the cultivation tank 1 to limit the lateral movement of the filter frame 4, that is, to limit the position between the filter frame 4 and the cultivation tank 1. After such a setting, it is convenient to take the filter frame 4 for maintenance.

[0050] When culturing zebrafish, culture water is added into the cultivation tank 1, and the water surface should be located below the filter frame 4. The water entering the cultivation tank 1 will pass through the filter plate 32 of the cultivator 3 and enter the cultivation container 31, that is, enter the cultivation space 6. Thereafter, fry can be placed in each cultivation space 6 for cultivation. When it is necessary to feed the fry, the food can be put into the corresponding cultivation space 6. It should be noted that food residues and solid excreta of fish will settle at the bottom of the cultivation space 6.

[0051] When it is necessary to take out the zebrafish for experiments, the corresponding cultivation container 31 can be rotated clockwise until the bottom of the cultivation container 31 is in an inclined state from front to back and from top to bottom. The water, fish, and various residues in the cultivation container 31 can be poured out backward with the cultivation container 31. The objects poured out will be discharged to the filter frame 4. Among them, the fish and solid residues will remain in the filter frame 4, while the water will pass through the filter frame 4 and flow back to the cultivation tank 1. At this time, since the fish is separated from the water body, it is difficult to move. At this time, the experimenter can easily pick up the fish. Compared with the existing fishing and taking-out methods, this taking-out method is easy to operate, has a high fish-taking efficiency, and is not easy to damage the fish, which is suitable for laboratory use. It is worth mentioning that, during the process of taking out the fish, the solid residues will be discharged into the filter frame 4 together to clean the solid residues in the cultivation space 6.

[0052] In this embodiment, the connection between the filter plate 32 and the breeding container 31 is a detachable connection. Specifically, a filter plate slot 313 for inserting the filter plate 32 is provided at the upper end of the breeding container 31. The filter plate 32 is inserted into the filter plate slot 313 and abuts against the bottom wall of the filter plate slot 313. When the filter plate 32 needs to be taken out, it can be pulled upward relative to the breeding container 31, so as to facilitate the cleaning of the filter plate 32.

[0053] To facilitate the clockwise rotation of the breeding container 31, the following design is also made in this embodiment. Specifically, a handle 312 is hinged to the part of the breeding container 31 in front of the assembly shaft 2. After such a setting, the user can pull the handle 312 backward and upward to drive the breeding container 31 to rotate clockwise, providing convenience for the rotation of the breeding container 31. It is worth mentioning that the handle 312 can rotate under the action of gravity to abut against the upper end of the assembly shaft 2, so as to facilitate the user to hold the handle 312.

[0054] During the process of the substances in the breeding container 31 being poured backward, there may be some substances adhering to the breeding container 31 or the filter plate 32. To enable these substances to be poured out smoothly, the following design is also made in this embodiment. Specifically, the experimental fish breeding device further includes a flushing mechanism. The flushing mechanism includes a water pump 5 provided at the inner bottom of the breeding tank 1, a liquid distribution pipe 51 provided at the pump outlet of the water pump 5, a plurality of nozzles 52 connected to the liquid distribution pipe 51 and corresponding to each breeding device 3 one by one, and a control switch 53 provided on the breeding tank 1 for controlling the on-off of the water pump 5. After the breeding tank 1 is filled with water, the water will submerge the water pump 5, so that the water pump 5 can pump the water in the breeding tank 1.

[0055] When it is necessary to pour out the substances adhering to the breeding container 31 or the filter plate 32, the control switch 53 can be used to control the water pump 5 to work electrically, so that the water pump 5 pumps water into the liquid distribution pipe 51. The water entering the liquid distribution pipe 51 will be distributed to each nozzle 52. Finally, the water will be sprayed out from the nozzle 52. The water sprayed out from the nozzle 52 will flush the rear side of the filter plate 32 to promote the substances adhering to the filter plate 32 to fall off. The water flowing downward along the filter plate 32 will flow into the breeding container 31, thereby driving the substances adhering to the breeding container 31 to flow downward, so as to promote the substances adhering to the breeding container 31 and the filter plate 32 to be poured out smoothly. It is worth mentioning that such a setting can also flush and clean the filter plate 32, the breeding container 31 and the filter frame 4.

[0056] In this embodiment, the control switch 53 is a normally open push-button switch. When the user presses the control switch 53, the water pump 5 can work electrically. Correspondingly, when the user releases the control switch 53, the water pump 5 will stop working electrically.

[0057] In order to make only the nozzles 52 corresponding to the aquaculture containers 31 that rotate clockwise among the nozzles 52 spray water, so as to achieve the purpose of saving energy, the following design is also made in this embodiment. Specifically, the nozzle 52 includes a housing 521, a connection port 522 communicated with the housing 521 for connecting with the liquid distribution pipe 51, an assembly through groove 523 opened at the lower end of the housing 521 and communicated with the housing 521, a spray hole 524 opened at the lower end of the housing 521 and communicated with the housing 521, a sealing plate 525 that is slidably connected in the housing 521 and is located below the liquid distribution pipe 51, a sliding member 526 that is slidably connected in the assembly through groove 523 and is connected to the lower end of the sealing plate 525, a circulation hole 527 opened at the lower end of the sealing plate 525 and penetrating through the upper end of the sealing plate 525, and a first elastic member 528 arranged above the sealing plate 525;

[0058] In this embodiment, the first elastic member 528 is a spiral spring. In the natural state, the first elastic member 528 will push the sealing plate 525 downward under its own elastic force in cooperation with the housing 521, so that the sealing plate 525 abuts against the inner bottom wall of the housing 521. In this state, since the positions of the spray hole 524 and the circulation hole 527 are staggered from each other, the upper end of the spray hole 524 will be closed by the sealing plate 525, and the lower end of the circulation hole 527 will be closed by the inner bottom wall of the housing 521. In this state, the water entering the housing 521 through the connection port 522 cannot be discharged through the spray hole 524, and this nozzle 52 will not spray water.

[0059] In this embodiment, the upper end of the filter plate 32 can rotate clockwise with the aquaculture container 31 until it abuts against the lower end of the sliding member 526. When the upper end of the filter plate 32 abuts against the lower end of the sliding member 526, the lower end of the spray hole 524 faces the filter plate 32.

[0060] When the aquaculture container 31 is rotated clockwise to pour the substances inside it, the filter plate 32 can be rotated clockwise with the aquaculture container 31 to push the sliding member 526 towards the sealing plate 525, so that the sealing plate 525 moves upward against the elastic force of the first elastic member 528, so that the sealing plate 525 is disengaged from the inner bottom wall of the housing 521. In this state, the upper end of the spray hole 524 and the lower end of the circulation hole 527 will be in a conducting state at the same time. At this time, the water entering the housing 521 through the connection port 522 can enter the lower side of the sealing plate 525 through the circulation hole 527. In this way, the water can be sprayed out through the spray hole 524, and this nozzle 52 will be turned on for spraying operation.

[0061] It should be noted that when the aquaculture container 31 rotates counterclockwise to reset, the first elastic member 528 will rebound to drive the sealing plate 525 to reset, so that it abuts against the inner bottom wall of the housing 521, so that this nozzle 52 returns to the closed state.

[0062] Since the breeding container 31 that is not rotated clockwise will not push the sliding member 526, the spray head 52 corresponding to the breeding container 31 that is not rotated clockwise will be in a closed state and will not perform the water spraying operation. In this way, among the spray heads 52, only the spray heads 52 corresponding to the breeding containers 31 rotated clockwise will perform the water spraying, so that the purpose of saving energy can be achieved. It is worth mentioning that the conduction of the spray head 52 is automatically realized when the user rotates the breeding container 31 clockwise, so there is no need for the user to deliberately perform additional operations, and it is very convenient to use.

[0063] In order to enable the control switch 53 to be automatically pressed when the user rotates the breeding container 31 clockwise to achieve automatic water spraying, the following design is also made in this embodiment. Specifically, the control switch 53 is arranged at the left end of the breeding container 31, and a pressing plate 23 for pressing the control switch 53 is fixedly connected to the left end of the assembly shaft 2. The assembly shaft 2 cannot rotate relative to the breeding box 1, and the breeding container 31 cannot move relative to the assembly shaft 2 along the axis direction of the assembly shaft 2. The right end of the right sleeve 311 of each breeding container 31 protrudes rightward to form a top block 3111, and there is an inclined connecting surface 3112 between the top end of the top block 3111 and the end surface of the sleeve 311. A convex plate 24 fixedly connected to the assembly shaft 2 is arranged on the right side of the right sleeve 311 of each breeding container 31. A second elastic member 241 is sleeved outside the assembly shaft 2 between the first limiting member 21 and the breeding box 1. In this embodiment, the second elastic member 241 is a spiral spring, and the second elastic member 241 can push the assembly shaft 2 to the left under the action of its own elastic force.

[0064] In the breeding state, the front part of the breeding container 31 will abut against the inner bottom of the breeding box 1. In this state, the convex plates 24 will abut against the right ends of the right sleeves 311 of the breeding containers 31, and at this time, the control switch 53 is not pressed by the pressing plate 23.

[0065] When the upper end of any filter plate 32 rotates clockwise with the breeding container 31 and pushes the sliding member 526 upward so that the sealing plate 525 is disengaged from the inner bottom wall of the housing 521, the inclined connecting surface 3112 rotating with the breeding container 31 will push the corresponding convex plate 24 to the right until it reaches the right end of the top block 3111, so that the convex plate 24 pushes the assembly shaft 2 to drive the pressing plate 23 to move to the right to press the control switch 53. In this way, when any breeding container 31 is rotated clockwise to pour the substances inside it, the filter plate 32 can push the sliding member 526 upward so that the sealing plate 525 is disengaged from the inner bottom wall of the housing 521, so that the pressing plate 23 automatically presses the control switch 53, so that the user does not need to deliberately press the control switch 53 to automatically realize the water spraying, and it is very convenient to use.

[0066] To limit the rotation of the assembly shaft 2 relative to the breeding tank 1, in this embodiment, a first limiting plane 25 is provided on the left end side of the assembly shaft 2, and a second limiting plane 111 is provided inside the first through hole 11. Thus, the second limiting plane 111 abuts against the first limiting plane 25 to limit the rotation of the assembly shaft 2 relative to the breeding tank 1.

[0067] To limit the movement of the breeding container 31 relative to the assembly shaft 2 along the axial direction of the assembly shaft 2, in this embodiment, limiting plates 314 are provided on the side surfaces of the sleeves 311 on both sides of each breeding container 31. A plurality of U-shaped frames 15 corresponding to the plurality of breeders 3 are fixedly connected to the inner bottom of the breeding tank 1. The limiting plates 314 on both sides of each breeding container 31 are located inside the corresponding U-shaped frames 15, and the outer end faces of the two limiting plates 314 are respectively in contact with the inner end faces of the two side plates of the U-shaped frame 15. Thus, the U-shaped frame 15 can cooperate with the two limiting plates 314 to limit the movement of the breeding container 31 relative to the assembly shaft 2 along the axial direction of the assembly shaft 2.

[0068] In this embodiment, the pressing plate 23 has a third through hole 231 for assembling with the assembly shaft 2. The pressing plate 23 is sleeved outside the assembly shaft 2 through the third through hole 231 and is located between the second elastic member 241 and the first limiting member 21. A third limiting plane 2311 is provided inside the third through hole 231. The third limiting plane 2311 abuts against the first limiting plane 25 to limit the rotation of the pressing plate 23 relative to the assembly shaft 2. Thus, the second elastic member 241 pushes the pressing plate 23 to the left under its own elastic force to press the pressing plate 23 tightly against the first limiting member 21. Also, since the pressing plate 23 cannot rotate relative to the assembly shaft 2, the pressing plate 23 is fixed to the left end of the assembly shaft 2 in this way.

[0069] In summary, the present invention discloses an experimental fish breeding device. This breeding device can conveniently rotate the breeder to pour fish and water into the filter frame 4 in a dumping manner, leaving the fish in the filter frame 4, allowing the water to flow back into the breeding tank 1 through the filter frame 4, so that the fish is separated from the water body and it is difficult for the fish to move. At this time, the experimenter can easily pick up the fish. Compared with the existing fishing and taking-out methods, this taking-out method is simple to operate, has a high fish-taking efficiency, and is not easy to cause damage to the fish, and is suitable for laboratory use.

[0070] The above embodiments are only used to exemplarily illustrate the principles and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. Experimental fish farming equipment, characterized in that: It includes a breeding box, an assembly shaft disposed within the breeding box, a plurality of breeders rotatably connected to the assembly shaft, and a filter frame disposed within the breeding box; The breeder includes a breeding container that is sleeved on the assembly shaft from left to right and has a front-to-back through structure, and a filter plate disposed at the front end of the breeding container. The mass of the part of the breeding container located at the rear side of the assembly shaft is less than the mass of the part located at the front side of the assembly shaft; The filter frame is disposed at the lower side of the rear end of the breeding container for receiving objects poured out from the rear end of the breeding container; It further includes a flushing mechanism. The flushing mechanism includes a water pump disposed at the inner bottom of the breeding box, a liquid distribution pipe disposed at the pump outlet end of the water pump, a plurality of spray heads connected to the liquid distribution pipe and corresponding to each breeder one by one, and a control switch disposed on the breeding box for controlling the power on and off of the water pump; The spray head includes a housing, a connection port communicated with the housing for connecting to the liquid distribution pipe, an assembly through groove opened at the lower end of the housing and communicated with the housing, a spray hole opened at the lower end of the housing and communicated with the housing, a sealing plate slidably connected in the housing and located below the connection port, a sliding member slidably connected in the assembly through groove and connected to the lower end of the sealing plate, a circulation hole opened at the lower end of the sealing plate and penetrating through the upper end of the sealing plate, and a first elastic member disposed above the sealing plate; In the natural state, the first elastic member will, under the action of its own elastic force, cooperate with the housing to push the sealing plate downward, so that the sealing plate abuts against the inner bottom wall of the housing. In this state, the upper end of the spray hole will be closed by the sealing plate, and the lower end of the circulation hole will be closed by the inner bottom wall of the housing; The upper end of the filter plate can rotate clockwise with the breeding container until it abuts against the lower end of the sliding member. When the upper end of the filter plate abuts against the lower end of the sliding member, the lower end of the spray hole faces the filter plate; The control switch is a normally open push-button switch. When the control switch is pressed, the water pump is powered on and operates; Both the left and right sides of the breeding container have sleeves for the assembly shaft to pass through; The left and right sides of the breeding box are respectively provided with a first through hole and a second through hole for the assembly shaft to pass through. The left and right ends of the assembly shaft are respectively fixedly connected with a first limiting member and a second limiting member located outside the breeding box; The control switch is disposed at the left end of the breeding container. The left end of the assembly shaft is fixedly connected with a pressing plate for pressing the control switch. The assembly shaft cannot rotate relative to the breeding box, and the breeding container cannot move along the axis direction of the assembly shaft relative to the assembly shaft. The right end of the sleeve on the right side of each breeding container protrudes rightward to form a top block. There is an inclined connection surface between the top end of the top block and the end face of the sleeve. The right side of the sleeve on the right side of each breeding container is provided with a convex plate fixedly connected to the assembly shaft. A second elastic member is sleeved outside the assembly shaft between the first limiting member and the breeding box. The second elastic member can push the assembly shaft leftward under the action of its own elastic force; When the front part of the breeding container abuts against the inner bottom of the breeding box, each of the convex plates will abut against the right end of the sleeve of each breeding container, and the control switch is not pressed by the pressing plate; When the upper end of the filter plate rotates clockwise with the breeding container to push the sliding member upward until the filter plate is disengaged from abutting against the inner bottom wall of the housing, the inclined connecting surface rotating with the breeding container will push the corresponding convex plate to the right until the right end of the top block, so that the convex plate drives the pressing plate to move to the right through the assembly shaft to press the control switch.

2. The experimental fish farming equipment according to claim 1, characterized in that: The left side surface of the assembly shaft has a first limiting plane, and the inner side of the first through hole has a second limiting plane, and the second limiting plane cooperates with the first limiting plane to limit the rotation of the assembly shaft relative to the breeding box.

3. The experimental fish breeding equipment according to claim 2, characterized in that: The pressing plate has a third through hole for assembling with the assembly shaft. The pressing plate is sleeved outside the assembly shaft through the third through hole and is located between the second elastic member and the first limiting member. The inner side of the third through hole has a third limiting plane, and the third limiting plane cooperates with the first limiting plane to limit the rotation of the pressing plate relative to the assembly shaft.

4. The experimental fish farming equipment according to any one of claims 1-3, characterized in that: A handle is hinged to the part of the breeding container in front of the assembly shaft.

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