High-survival-rate artificial breeding device for crayfishes

Abstract

The invention belongs to the technical field of artificial breeding, and discloses a high-survival-rate artificial breeding device for crayfish, which comprises a breeding box, an inserting rod is fixed at the bottom end of the breeding box, a flowing mechanism is fixed in the breeding box, a separating mechanism is arranged at the bottom end of a supporting rod, and a limiting mechanism is arranged at the top end of the separating mechanism. Through cooperation of structures such as a first connecting rod, a first extension plate and a first baffle plate, when the device observes that the seedlings have the sign of mutual food failure or the culture density needs to be adjusted, a second servo motor is started to drive the first connecting rod, the first extension plate and the first baffle plate to rotate; and a first chain wheel, a chain and a second chain wheel synchronously drive a second connecting rod, a second extension plate and a second baffle to rotate, so that a first baffle and the second baffle are staggered, and at the moment, part of seedlings can be guided to an adjacent free area, so that dynamic separation of the seedlings is realized, and the purpose of conveniently separating the seedlings by the device is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of artificial seedling cultivation, and in particular is a device for artificial seedling cultivation with a high survival rate for crayfish. Background Art

[0002] Existing artificial crayfish seedling breeding devices have limitations in structure and function, such as the difficulty in accurately controlling the seedling growth environment, the lack of an effective mechanism to prevent cannibalism among seedlings, and poor adaptability to the complex environment of the pond. As a result, the survival rate of crayfish seedlings is difficult to further improve. Therefore, it is necessary to use an artificial crayfish seedling breeding device with a high survival rate to breed crayfish.

[0003] Publication No. CN211353554U discloses an artificial breeding device with a high survival rate of crayfish, comprising a box body, a breeding box provided inside the box body, an attachment pad fixedly connected to the bottom of the breeding box, a placement box provided inside the breeding box, a circular hole opened at the middle end of the bottom of the placement box, an adsorption plate placed around the circular hole and at the bottom of the placement box, an incubator placed above the adsorption plate, a plurality of through holes opened on the inner wall of the incubator, a filtering mechanism connected to one side of the box body, a sunshade provided on the top of the box body, the sunshade connected to the box body through a connecting mechanism, a screw movably connected to the sunshade, a threaded sleeve threadedly connected to the outer surface of the bottom end of the screw, a heating plate fixedly connected to the inner bottom end of the threaded sleeve, which can separate the parent shrimp from the shrimp fry, and at the same time can adjust the water temperature so that the water temperature is suitable for the growth of the shrimp fry and can block direct sunlight.

[0004] However, this device still cannot avoid the mechanism of cannibalism among seedlings when in use. It is necessary to cultivate the seedlings in layers to avoid cannibalism among seedlings, thereby increasing the survival rate of the seedlings. In addition, by disturbing the water flow to simulate the environment in the river, an ecological environment close to nature is created for the crayfish seedlings, promoting the growth and development of the seedlings, and improving their immunity and adaptability. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a device for artificial breeding of crayfish with high survival rate.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for artificial breeding of crayfish with a high survival rate, comprising a breeding box, a plug rod fixed to the bottom end of the breeding box, a flow mechanism fixed inside the breeding box, a support rod fixed to the top end of the breeding box, a partition mechanism provided at the bottom end of the support rod, a transmission mechanism installed at the bottom end of the partition mechanism, and a limit mechanism provided at the top end of the partition mechanism;

[0007] The flow mechanism includes a protective shell, an isolation box and a flow disturbance hole, wherein the protective shell is fixed on the outside of the seedling box, the isolation box is fixed on the inside of the seedling box, and the surface of the isolation box is provided with a flow disturbance hole;

[0008] The partition mechanism includes a first connecting rod, a first extension plate and a first baffle, wherein the first connecting rod is movably connected to the inside of the support rod, the first extension plate is fixed to the outside of the first connecting rod, and the first baffle is movably connected to the inside of the first extension plate;

[0009] The transmission mechanism includes a first sprocket, a chain and a second sprocket. The first sprocket is fixed to the bottom end of the first connecting rod. The outside of the first sprocket is meshed with the chain, and the inside of the chain is meshed with the second sprocket.

[0010] Preferably, a first servo motor is fixed inside the protective shell, a fan blade is fixed to the rotating end of the first servo motor, two groups of protective shells are provided, and the protective shells are symmetrically distributed about the central axis of the seedling box. The spoiler holes are provided in several groups and are arranged at equal intervals about the central axis of the isolation box.

[0011] Preferably, a first return spring is fixed to the bottom end of the first extension plate, a second connecting rod is movably connected to the inside of the support rod, a second extension plate is fixed to the outside of the second connecting rod, a second return spring is fixed to the bottom end of the second extension plate, a second baffle is movably connected to the inside of the second extension plate, a shift rod is fixed to the top end of the second connecting rod, and a second servo motor is fixed to the top end of the first connecting rod.

[0012] Preferably, the first connecting rod is rotatably connected to the inside of the support rod, the first extension plate is provided with two groups symmetrically distributed about the central axis of the first connecting rod, the first baffle is rotatably connected to the inside of the first extension plate, the first return spring is used to squeeze the first baffle and keep it in a rotation trend, and the first return spring is provided with two groups, the first return springs are symmetrically distributed, the first return spring causes the first baffle to rotate left, and the other group of first return springs causes the first baffle to rotate right.

[0013] Preferably, the second sprocket is fixed to the bottom end of the second connecting rod, and the first sprocket and the chain are symmetrically distributed about the central axis of the support rod.

[0014] Preferably, the limiting mechanism includes a limiting seat, a third return spring and a first limiting rod, the limiting seat is slidably connected to the inside of the support rod, the bottom end of the limiting seat is fixed with a third return spring, the internal movably connected to the first limiting rod, the outer sleeve of the first limiting rod is provided with a fourth return spring, the outer side of the first limiting rod is fixed with a limiting block, the top of the first baffle is fixed with a mounting seat, the top of the mounting seat is fixed with a second limiting rod, the top of the second limiting rod is fixed with a first limiting disk, and the outer sleeve of the second limiting rod is provided with a second limiting disk.

[0015] Preferably, two groups of the third return springs are provided, and the third return springs are symmetrically distributed about the central axis of the limiting seat. The third return springs are used to squeeze the limiting seat and keep it moving upward.

[0016] Preferably, two groups of the first limiting rods are provided, and the first limiting rods are symmetrically distributed about the central axis of the jack opened at the bottom end of the limiting seat, and the fourth return spring is used to squeeze the first limiting rods and keep them moving inward.

[0017] Preferably, the inner wall of the second limiting plate fits against the outer wall of the second limiting rod, the second limiting plate and the second limiting rod are slidably connected, and the outer diameter of the second limiting plate is greater than that of the first limiting plate.

[0018] Preferably, the inserting rods are provided in four groups, and the inserting rods are symmetrically distributed about the central axis of the seedling box; the support rods are provided in five groups, and the support rods are distributed in an array.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention arranges the coordination of the first connecting rod, the first extension plate, the first baffle and other structures, so that when the seedlings are observed to show signs of cannibalism or the breeding density needs to be adjusted, the device starts the second servo motor to drive the first connecting rod, the first extension plate and the first baffle to rotate, and synchronously drives the second connecting rod, the second extension plate and the second baffle to rotate through the first sprocket, the chain and the second sprocket, so that the first baffle and the second baffle are staggered. At this time, some seedlings can be guided to adjacent idle areas, thereby realizing dynamic separation of the seedlings, thereby achieving the purpose of facilitating the device to separate the seedlings.

[0021] The present invention cooperates with structures such as a limit seat, a third return spring, and a first limit rod, so that the device can press the limit seat to press the limit seat as a whole. At this time, the limit block contacts the first limit disk and contracts. After the limit block passes the first limit disk, the fourth return spring resets the limit block so that the limit block is located at the bottom end of the first limit disk to limit the first limit disk, and then to limit the first baffle and the second baffle, thereby avoiding excessive impact force of the seedlings causing the two areas to be connected, thereby achieving the purpose of facilitating the device to quickly limit and disengage the first baffle and the second baffle.

[0022] The present invention cooperates with structures such as a protective shell, an isolation box, and a spoiler hole, so that the device can start a first servo motor to drive the fan blades to rotate, and then drive the water flow to stir through the rotation of the fan blades, and direct the water flow to the middle of the seedling box through the spoiler hole, thereby creating an ecological environment close to nature for the crayfish seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the separation mechanism structure of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the separation mechanism of the present invention in an open state;

[0026] Figure 4 It is a partial structural diagram of the separation mechanism of the present invention;

[0027] Figure 5 Schematic diagram of the limiting mechanism structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0029] Figure 7 It is a schematic diagram of the flow mechanism structure of the present invention;

[0030] Figure 8 Schematic diagram of the internal structure of the flow mechanism of the present invention.

[0031] In the figure: 1, seedling box; 2, plug rod; 3, flow mechanism; 301, protective shell; 302, isolation box; 303, spoiler hole; 304, first servo motor; 305, fan blade; 4, support rod; 5, separation mechanism; 501, first connecting rod; 502, first extension plate; 503, first baffle; 504, first return spring; 505, second connecting rod; 506, second extension plate; 507, second return spring; 50 8. Second baffle; 509. Push rod; 510. Second servo motor; 6. Transmission mechanism; 601. First sprocket; 602. Chain; 603. Second sprocket; 7. Limiting mechanism; 701. Limiting seat; 702. Third return spring; 703. First limiting rod; 704. Fourth return spring; 705. Limiting block; 706. Mounting seat; 707. Second limiting rod; 708. First limiting plate; 709. Second limiting plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 8 As shown, the present invention provides an artificial seedling breeding device with a high survival rate for crayfish, comprising a seedling breeding box 1, an insertion rod 2 fixed at the bottom end of the seedling breeding box 1, a flow mechanism 3 fixed inside the seedling breeding box 1, a support rod 4 fixed at the top end of the seedling breeding box 1, a partition mechanism 5 provided at the bottom end of the support rod 4, a transmission mechanism 6 installed at the bottom end of the partition mechanism 5, a limiting mechanism 7 provided at the top end of the partition mechanism 5, four groups of insertion rods 2 provided, the insertion rods 2 are symmetrically distributed about the central axis of the seedling breeding box 1, five groups of support rods 4 provided, and the support rods 4 are distributed in an array.

[0034] The above scheme is adopted: the seedling box 1 is divided into multiple seedling layers by multiple groups of support rods 4. When signs of cannibalism of seedlings are observed or the breeding density needs to be adjusted, some seedlings are guided to adjacent vacant areas, thereby achieving dynamic separation of seedlings, reducing cannibalism, and improving seedling survival rate.

[0035] like Figures 1 to 8As shown, the flow mechanism 3 includes a protective shell 301, an isolation box 302 and a spoiler hole 303. The protective shell 301 is fixed to the outside of the seedling box 1, the isolation box 302 is fixed to the inside of the seedling box 1, and the spoiler hole 303 is opened on the surface of the isolation box 302. A first servo motor 304 is fixed inside the protective shell 301, and a fan blade 305 is fixed to the rotating end of the first servo motor 304. Two groups of protective shells 301 are provided, and the protective shells 301 are symmetrically distributed about the central axis of the seedling box 1. The spoiler holes 303 are provided in several groups and are arranged at equal intervals about the central axis of the isolation box 302.

[0036] The above scheme is adopted: by starting the first servo motor 304 to drive the fan blades 305 to rotate, and then the rotation of the fan blades 305 drives the water flow to stir, and the water flows to the middle of the seedling box 1 through the spoiler hole 303, thereby creating an ecological environment close to nature for the crayfish seedlings, promoting the growth and development of the seedlings, and improving their immunity and adaptability.

[0037] like Figures 1 to 4 As shown, the separating mechanism 5 includes a first connecting rod 501, a first extension plate 502 and a first baffle 503. The first connecting rod 501 is movably connected to the inside of the support rod 4. The first extension plate 502 is fixed to the outside of the first connecting rod 501. The first baffle 503 is movably connected to the inside of the first extension plate 502. A first return spring 504 is fixed to the bottom end of the first extension plate 502. The first connecting rod 501 is rotatably connected to the inside of the support rod 4. The first extension plate 502 is provided with two groups of symmetrical distributions about the central axis of the first connecting rod 501. The first baffle 503 is rotatably connected to the inside of the first extension plate 502. The first return spring 504 is used to squeeze the first baffle 503 and keep it in a rotation trend. Two groups of first return springs 504 are provided. The first return springs 504 are symmetrically distributed. The first return spring 504 causes the first baffle 503 to rotate left, and the other group of first return springs 504 causes the first baffle 503 to rotate right.

[0038] like Figures 1 to 4 As shown, the support rod 4 is internally movably connected to the second connecting rod 505, the second extension plate 506 is fixed to the outside of the second connecting rod 505, the bottom end of the second extension plate 506 is fixed to the second return spring 507, the second extension plate 506 is internally movably connected to the second baffle 508, the top of the second connecting rod 505 is fixed to the shift rod 509, and the top of the first connecting rod 501 is fixed to the second servo motor 510.

[0039] The above scheme is adopted: when the seedlings are observed to have signs of cannibalism or the stocking density needs to be adjusted, the second servo motor 510 is started to drive the first connecting rod 501, the first extension plate 502 and the first baffle 503 to rotate, and the second connecting rod 505, the second extension plate 506 and the second baffle 508 are synchronously driven to rotate through the first sprocket 601, the chain 602 and the second sprocket 603, so that the first baffle 503 and the second baffle 508 are staggered. At this time, some seedlings can be guided to the adjacent idle area, thereby realizing dynamic separation of the seedlings. After the separation is completed, the first baffle 503 and the second baffle 508 are reset. When the first baffle 503 and the second baffle 508 are closed, some seedlings may remain at the closed position of the first baffle 503 and the second baffle 508. The first return spring 504 buffers the first baffle 503, and the second return spring 507 buffers the second baffle 508. When the first baffle 503 and the second baffle 508 contact the seedlings, the first baffle 503 and the second baffle 508 will rotate outward to avoid damage to the seedlings. After the seedlings pass, the first return spring 504 and the second return spring 507 reset the first baffle 503 and the second baffle 508 to separate the areas. In the event of an unexpected power outage, the user can also connect the two groups of areas through the lever 509.

[0040] like Figures 1 to 3 As shown, the transmission mechanism 6 includes a first sprocket 601, a chain 602 and a second sprocket 603. The first sprocket 601 is fixed to the bottom end of the first connecting rod 501. The outside of the first sprocket 601 is engaged with the chain 602. The inside of the chain 602 is engaged with the second sprocket 603. The second sprocket 603 is fixed to the bottom end of the second connecting rod 505. The first sprocket 601 and the chain 602 are symmetrically distributed about the central axis of the support rod 4.

[0041] like Figures 1 to 6 As shown, the limiting mechanism 7 includes a limiting seat 701, a third return spring 702 and a first limiting rod 703. The limiting seat 701 is slidably connected to the inside of the support rod 4. The bottom end of the limiting seat 701 is fixed with a third return spring 702. Two groups of third return springs 702 are provided. The third return springs 702 are symmetrically distributed about the central axis of the limiting seat 701. The third return spring 702 is used to squeeze the limiting seat 701 and keep it moving upward.

[0042] like Figures 1 to 6As shown, the internal movable connection of the limiting seat 701 is connected with the first limiting rod 703, and the first limiting rod 703 is provided with two groups. The first limiting rod 703 is symmetrically distributed about the central axis of the jack opened at the bottom end of the limiting seat 701. The fourth return spring 704 is used to squeeze the first limiting rod 703 and keep it moving inward. The outer sleeve of the first limiting rod 703 is provided with a fourth return spring 704. The outer fixed limiting block 705 of the first limiting rod 703 is provided. A mounting seat 706 is fixed to the top of the plate 503, a second limiting rod 707 is fixed to the top of the mounting seat 706, a first limiting plate 708 is fixed to the top of the second limiting rod 707, a second limiting plate 709 is sleeved on the outside of the second limiting rod 707, the inner wall of the second limiting plate 709 fits the outer wall of the second limiting rod 707, the second limiting plate 709 and the second limiting rod 707 are slidably connected, and the outer diameter of the second limiting plate 709 is larger than the outer diameter of the first limiting plate 708.

[0043] The above solution is adopted: by pressing the limit seat 701, the limit seat 701 is pressed down as a whole. At this time, the limit block 705 contacts the first limit plate 708 and shrinks. After the limit block 705 passes the first limit plate 708, the fourth return spring 704 resets the limit block 705, so that the limit block 705 is located at the bottom end of the first limit plate 708 to limit the first limit plate 708, and then limit the first baffle 503 and the second baffle 508, thereby avoiding excessive impact force on the seedlings The two areas are connected. When adjustment is needed, continue to press the limit seat 701. At this time, the limit block 705 contacts the second limit plate 709 and contracts. After the limit block 705 passes the second limit plate 709, the limit block 705 lifts the second limit plate 709, so that the second limit plate 709 and the first limit plate 708 fit together. At this time, the restoring force of the third reset spring 702 can quickly pull up and reset the limit seat 701, thereby contacting the limit of the first baffle 503 and the second baffle 508.

[0044] The working principle and use process of the present invention are as follows: the seedling box 1 is divided into multiple seedling layers by multiple groups of support rods 4. When the seedlings show signs of cannibalism or the breeding density needs to be adjusted, some of the seedlings are guided to adjacent idle areas, thereby realizing dynamic separation of the seedlings, reducing cannibalism, and improving the survival rate of the seedlings. The fan blades 305 are driven to rotate by starting the first servo motor 304, and the water flow is stirred by the rotation of the fan blades 305, and the water flow is directed to the middle of the seedling box 1 through the flow disturbance holes 303, thereby creating an ecological environment close to nature for the crayfish seedlings, promoting the growth and development of the seedlings, and improving their immunity and adaptability. When the density is high, the second servo motor 510 is started to drive the first connecting rod 501, the first extension plate 502 and the first baffle 503 to rotate, and the second connecting rod 505, the second extension plate 506 and the second baffle 508 are synchronously driven to rotate through the first sprocket 601, the chain 602 and the second sprocket 603, so that the first baffle 503 and the second baffle 508 are staggered. At this time, some seedlings can be guided to the adjacent idle area, thereby realizing dynamic separation of the seedlings. After the separation is completed, the first baffle 503 and the second baffle 508 are reset. At this time, some seedlings may remain at the closing position of the first baffle 503 and the second baffle 508. The first baffle 503 is buffered by the first return spring 504, and the second return spring 50 7 provides a buffer for the second baffle 508. When the first baffle 503 and the second baffle 508 come into contact with the seedlings, the first baffle 503 and the second baffle 508 rotate outward to avoid damage to the seedlings. After the seedlings pass through, the first return spring 504 and the second return spring 507 return the first baffle 503 and the second baffle 508 to separate the areas. In the event of an unexpected power outage, the user can also connect the two groups of areas through the lever 509 and press the limit seat 701 to press the limit seat 701 downward as a whole. At this time, the limit block 705 contacts the first limit plate 708 and contracts. After the limit block 705 passes the first limit plate 708, the fourth return spring 704 returns the limit block 705 to its original position. The limit block 705 is located at the bottom end of the first limit plate 708 to limit the first limit plate 708, and then the first baffle 503 and the second baffle 508 are limited, so as to avoid the seedling impact force being too large and causing the two areas to be connected. When adjustment is needed, continue to press the limit seat 701. At this time, the limit block 705 contacts the second limit plate 709 and contracts. After the limit block 705 passes the second limit plate 709, the limit block 705 lifts the second limit plate 709 so that the second limit plate 709 and the first limit plate 708 are fitted together. At this time, the restoring force of the third reset spring 702 can be used to quickly pull up and reset the limit seat 701, thereby contacting the limit of the first baffle 503 and the second baffle 508.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for artificially raising crayfish with a high survival rate, comprising a raising box (1), characterized in that: The bottom end of the seedling raising box (1) is fixed with an inserting rod (2), the interior of the seedling raising box (1) is fixed with a flow mechanism (3), the top end of the seedling raising box (1) is fixed with a support rod (4), the bottom end of the support rod (4) is provided with a partition mechanism (5), the bottom end of the partition mechanism (5) is installed with a transmission mechanism (6), and the top end of the partition mechanism (5) is provided with a limiting mechanism (7); The flow mechanism (3) comprises a protective shell (301), an isolation box (302) and a flow disturbance hole (303); the protective shell (301) is fixed to the outside of the seedling raising box (1); the isolation box (302) is fixed to the inside of the seedling raising box (1); and the surface of the isolation box (302) is provided with a flow disturbance hole (303); The partition mechanism (5) comprises a first connecting rod (501), a first extension plate (502) and a first baffle (503); the first connecting rod (501) is movably connected to the interior of the support rod (4); the first extension plate (502) is fixed to the exterior of the first connecting rod (501); and the interior of the first extension plate (502) is movably connected to the first baffle (503); The transmission mechanism (6) comprises a first sprocket (601), a chain (602) and a second sprocket (603), wherein the first sprocket (601) is fixed to the bottom end of the first connecting rod (501), the outer portion of the first sprocket (601) is meshedly connected to the chain (602), and the inner portion of the chain (602) is meshedly connected to the second sprocket (603).

2. The device for artificial breeding of crayfish with high survival rate according to claim 1, characterized in that: A first servo motor (304) is fixed inside the protective shell (301), and a fan blade (305) is fixed to the rotating end of the first servo motor (304). The protective shell (301) is provided with two groups, and the protective shells (301) are symmetrically distributed about the central axis of the seedling box (1). The spoiler holes (303) are provided with a plurality of groups and are arranged at equal intervals about the central axis of the isolation box (302).

3. The device for artificial breeding of crayfish with high survival rate according to claim 1, characterized in that: A first return spring (504) is fixed to the bottom end of the first extension plate (502), a second connecting rod (505) is movably connected inside the support rod (4), a second extension plate (506) is fixed to the outside of the second connecting rod (505), a second return spring (507) is fixed to the bottom end of the second extension plate (506), a second baffle (508) is movably connected inside the second extension plate (506), a shift rod (509) is fixed to the top end of the second connecting rod (505), and a second servo motor (510) is fixed to the top end of the first connecting rod (501).

4. The device for artificial breeding of crayfish with high survival rate according to claim 3, characterized in that: The first connecting rod (501) is rotatably connected to the inside of the support rod (4); the first extension plate (502) is provided with two groups symmetrically distributed about the central axis of the first connecting rod (501); the first baffle (503) is rotatably connected to the inside of the first extension plate (502); the first return spring (504) is used to squeeze the first baffle (503) and keep it in a rotational trend; the first return spring (504) is provided with two groups, and the first return springs (504) are symmetrically distributed. The first return spring (504) causes the first baffle (503) to rotate to the left, and the other group of first return springs (504) causes the first baffle (503) to rotate to the right.

5. The device for artificial breeding of crayfish with high survival rate according to claim 3, characterized in that: The second sprocket (603) is fixed to the bottom end of the second connecting rod (505), and the first sprocket (601) and the chain (602) are symmetrically distributed about the central axis of the support rod (4).

6. The device for artificial breeding of crayfish with high survival rate according to claim 1, characterized in that: The limiting mechanism (7) comprises a limiting seat (701), a third return spring (702) and a first limiting rod (703); the limiting seat (701) is slidably connected to the inside of the support rod (4); the third return spring (702) is fixed to the bottom end of the limiting seat (701); the first limiting rod (703) is movably connected to the inside of the limiting seat (701); the fourth return spring (704) is sleeved on the outside of the first limiting rod (703); a limiting block (705) is fixed on the outside of the first limiting rod (703); a mounting seat (706) is fixed to the top end of the mounting seat (706); a second limiting rod (707) is fixed to the top end of the second limiting rod (707); a first limiting plate (708) is fixed to the top end of the second limiting rod (707); and a second limiting plate (709) is sleeved on the outside of the second limiting rod (707).

7. The device for artificial breeding of crayfish with high survival rate according to claim 6, characterized in that: Two groups of the third return springs (702) are provided. The third return springs (702) are symmetrically distributed about the central axis of the limiting seat (701). The third return springs (702) are used to squeeze the limiting seat (701) and keep it moving upward.

8. The device for artificial breeding of crayfish with high survival rate according to claim 6, characterized in that: The first limiting rods (703) are provided in two groups, and the first limiting rods (703) are symmetrically distributed about the central axis of the insertion hole opened at the bottom end of the limiting seat (701). The fourth return spring (704) is used to squeeze the first limiting rods (703) and keep them moving inward.

9. The device for artificial breeding of crayfish with high survival rate according to claim 6, characterized in that: The inner wall of the second limiting plate (709) fits the outer wall of the second limiting rod (707), the second limiting plate (709) and the second limiting rod (707) are slidably connected, and the outer diameter of the second limiting plate (709) is greater than the outer diameter of the first limiting plate (708).

10. The device for artificial breeding of crayfish with high survival rate according to claim 1, characterized in that: The inserting rods (2) are provided in four groups, and the inserting rods (2) are symmetrically distributed about the central axis of the seedling box (1); the support rods (4) are provided in five groups, and the support rods (4) are distributed in an array.

Images