Seedling screening machine for shellfish breeding

Abstract

The invention relates to the technical field of shellfish breeding, in particular to a shellfish breeding seedling screening machine which comprises a seedling screening pool, a seedling screening cylinder, a feeding part, a receiving part, a pair of mounting seats and a driving mechanism, the seedling screening cylinder is arranged in the seedling screening pool, the two mounting seats are symmetrically arranged on the two sides in the seedling screening pool, and the driving mechanism is arranged on one mounting seat and is arranged on the other mounting seat. The driving part is used for driving the seedling screening barrel to rotate, one end of the seedling screening barrel is rotationally connected with a feeding opening connected with the feeding part, the other end of the seedling screening barrel is rotationally connected with a discharging opening connected with the receiving part, and the feeding opening and the discharging opening are formed below the two mounting seats respectively; and a plurality of baffle plates which are obliquely distributed in the same direction are fixed on the inner wall of the seedling screening cylinder at intervals around the axis of the seedling screening cylinder. The temporary storage inclined opening is formed by the blocking pieces obliquely arranged on the inner wall of the seedling screening barrel and the seedling screening barrel, qualified seedlings can be sequentially carried to be upwards transferred to the material collecting mechanism when the seedling screening barrel rotates, the qualified seedlings are obliquely guided and conveyed through the material collecting mechanism, and body surface damage and activity reduction caused by mechanical extrusion of the seedlings are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shellfish breeding, in particular to a screening machine for shellfish breeding. BACKGROUND

[0002] Shellfish breeding is an important subfield of aquatic seed breeding in fisheries. Shellfish breeding and fish seed breeding are similar, both of which rely on specific facilities for aquaculture to simulate the survival and reproduction environment of aquatic organisms for artificial breeding. Shellfish breeding undergoes fertilization, hatching, larva cultivation, and juvenile shellfish stage to provide qualified seed sources for adult shellfish breeding. Screening is a key link in shellfish breeding, usually carried out after the larva becomes juvenile shellfish. The growth state is judged according to the size of the seed, and the seed is screened by using a screen to remove weak and deformed individuals, and to retain high uniformity and good growth seed, so as to improve the survival rate of seed and the breeding benefit.

[0003] Chinese patent application with publication number CN110506688A discloses a shellfish breeding screening machine, which includes a rack, left and right baffles arranged on the rack, and a screening device passing through the left and right baffles. The left baffle is connected with a feeding device on the left side, and the right baffle is connected with a discharging device on the right side. The screening device is connected with the feeding device and the discharging device. The structure improves the screening quality and efficiency of the screening machine, and adjusts the aperture of the screen to adapt to different screening requirements, thereby improving the practicality of the screening machine.

[0004] Patent with publication number CN221576531U discloses a spiral shellfish screening device, which includes a shellfish screening cylinder, a spiral rod, a shellfish screening pool, and a flushing assembly. The shellfish screening device improves the screening efficiency by rotating the spiral rod to slowly move the inside shellfish. The flushing assembly can flush and disturb the shellfish in the shellfish screening cylinder and reduce the adhesion of the shellfish in the shellfish screening cylinder.

[0005] The above screening machine and shellfish screening device both use an auger conveying rod to convey the seed. During the conveying process, the seed is easily accumulated and agglomerated due to the continuous pushing of the spiral blade, which may cause incomplete screening and low screening efficiency. In addition, the spiral pushing method may cause mechanical extrusion of the seed, which may lead to damage to the surface of the seed, decrease in vitality, and reduction in survival rate and subsequent breeding benefit. SUMMARY

[0006] The present application aims to provide a screening machine for shellfish breeding to solve the technical problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The application discloses a kind of shellfish fry rearing with sieve fry machine, including sieve fry pool, sieve fry cylinder, feeding part, receiving part, a pair of mounting seat and drive mechanism, sieve fry cylinder is arranged in sieve fry pool, two mounting seats are symmetrically arranged in two sides in sieve fry pool, drive mechanism is arranged in one side mounting seat, for driving sieve fry cylinder rotation, sieve fry cylinder one end is rotatably connected with the feed inlet of the feeding part, the other end is rotatably connected with the discharge outlet of the receiving part, feed inlet and discharge outlet are respectively installed below two mounting seats;Several same direction inclined distribution baffles are fixed on the inner wall of sieve fry cylinder around its axis at intervals, and the temporary storage bevel is formed between the baffle and the inner wall of sieve fry cylinder;Discharge outlet inner wall is provided with the material collecting mechanism extending along the length direction of sieve fry cylinder, and the material collecting mechanism is higher than the axis of sieve fry cylinder;Wherein, when sieve fry cylinder rotates, each temporary storage bevel can be sequentially transferred to the material collecting mechanism on the qualified seedlings, and the material collecting mechanism can guide the qualified seedlings to the side of discharge outlet.

[0008] Preferably, the material collecting mechanism includes a guide groove and a pair of guide plates;One end of the guide groove is fixed to the inner wall of the discharge outlet by a fixed frame;Two guide plates are symmetrically fixed above both sides of the guide groove, and the two guide plates are in an inverted eight-character shape;The discharge outlet is a horizontally placed conical funnel, and the diameter becomes larger closer to the sieve fry cylinder;The depth of the guide groove increases towards the side of the discharge outlet, and the guide groove is connected to the smallest diameter part of the discharge outlet through a second guide pipe.

[0009] Preferably, the feeding part uses a feeding box;The feeding box is fixedly arranged on one side of the sieve fry pool close to the feed inlet;The feed inlet is a horizontally placed conical funnel, and the diameter becomes larger closer to the sieve fry cylinder;The smallest diameter part of the feed inlet is communicated with the feeding box through a first guide pipe.

[0010] Preferably, the receiving part uses a receiving plate;The receiving plate is obliquely installed through the side of the sieve fry pool, and the receiving plate is fixed with a baffle on both sides;The receiving plate and the two baffles form an inclined chute structure;The smallest diameter part of the discharge outlet is connected to the chute structure.

[0011] Preferably, a horizontal power module is fixed below each of the two mounting seats, and an end seat is installed on each of the two horizontal power modules;The horizontal power module can drive the corresponding end seat to move back and forth;A ring seat is fixedly arranged on the outer wall of the feed inlet and the discharge outlet, and the two ring seats are fixedly arranged corresponding to the end seat on the same side.

[0012] Preferably, a guide rod is vertically and slidably installed at one end of each of the two mounting seats, and the bottom end of each of the two guide rods is fixed to the inner bottom wall of the sieve fry pool;A connecting rod is fixedly arranged at the other end of each of the two mounting seats;Two U-shaped support seats are fixed below the sieve fry pool, and a vertical power module is vertically and fixedly installed on each of the two U-shaped support seats;The bottom end of each of the two connecting rods is connected to one of the two vertical power modules;The vertical power module can drive the connecting rod to move up and down.

[0013] Preferably, the first water pipe extending along the length direction of the seedling screening cylinder is fixed on one side of the seedling screening cylinder by a support, and a plurality of first spray heads are installed on the first water pipe along the length direction of the first water pipe in a spaced manner; the first spray heads are inclined downward and face the seedling screening cylinder; the second water pipe is fixed on the feeding box by a support, and a plurality of second spray heads are installed on the second water pipe along the length direction of the feeding box in a spaced manner.

[0014] Preferably, a connecting seat is fixed on the outer wall of the feeding port, and a water collecting groove extending along the length direction of the seedling screening cylinder is fixed on the end of the connecting seat; the bottom of the water collecting groove is an arc surface matched with the seedling screening cylinder, and the bottom of the water collecting groove is movably attached to the top of the seedling screening cylinder; a water outlet groove extending along the length direction of the seedling screening cylinder is formed on each side of the bottom of the water collecting groove; the spraying range of the first spray head can cover the top opening of the water collecting groove.

[0015] Preferably, the driving mechanism includes a driving motor and a driving gear; a motor seat is fixedly installed on the top of the mounting seat on the side close to the discharge port, and the driving motor is fixedly installed on the motor seat; the driving gear is fixed on the output shaft of the motor seat; a driven gear ring is fixedly sleeved on the outer wall of the seedling screening cylinder, and the driven gear ring is correspondingly engaged with the driving gear; a protective cover is further fixed on the side end of the seedling screening pool, and the protective cover covers the outside of the driving motor and the driving gear.

[0016] Preferably, the ends of the first water pipe and the second water pipe are respectively communicated with two interfaces of a three-way valve; another interface of the three-way valve is connected with a water inlet main pipe, and the water inlet main pipe is connected with a water pump arranged in the seedling screening pool.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows: 1. The present application can carry qualified seedlings to the collecting mechanism in turn by the inclined baffle arranged on the inner wall of the seedling screening cylinder and the seedling screening cylinder, and can guide and send the qualified seedlings by the collecting mechanism, instead of the traditional auger pushing mode, so as to avoid the surface damage and vitality decline of the seedlings caused by mechanical extrusion during the conveying process, improve the survival rate of the seedlings and the subsequent breeding benefit, and simultaneously improve the dispersibility of the seedlings in the liquid and reduce the agglomeration phenomenon due to the structural design of the temporary storage inclined port.

[0018] 2. The present application drives the seedling screening cylinder to move back and forth by the horizontal power module, forms an oscillation effect, makes the seedlings uniformly distributed in the seedling screening cylinder, intensifies the water disturbance, promotes the rapid dispersion of small-size seedlings and qualified seedlings, solves the problem of incomplete screening caused by seedling agglomeration, and simultaneously the baffle serves as a disturbance member in oscillation, further enhances the turning and dispersion degree of the seedlings.

[0019] 3. The application drives the seedling screening cylinder to reciprocatingly ascend and descend by the vertical power module, moves the water body up and down relative to the seedling screening cylinder, automatically dredges the seedling screening hole blocked by seedlings or impurities by using the water body impact force, maintains the unobstructedness of the seedling screening hole, ensures the continuity and stability of the screening process, and reduces the screening efficiency and equipment downtime maintenance frequency caused by the seedling screening hole blockage.

[0020] 4. The application sets the water collecting tank outside the feeding port, accumulates water in the water collecting tank by using the spraying of the first spraying head, and when the lower water tank port is aligned with the seedling screening hole of the seedling screening cylinder, the accumulated water re-flushes the passing temporary storage inclined port, strengthens the seedling falling effect, avoids the residual of qualified seedlings in the transfer process, and the double lower water tank port design can flush the same temporary storage inclined port twice, improves the thoroughness and efficiency of seedling transfer. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic view of the overall structure of the application; Figure 2 Figure 1 It is a schematic view of another view of the structure shown; Figure 3 It is Figure 1 It is a schematic view of a part of the structure shown; Figure 4 It is Figure 1 It is a schematic view of a part of the structure shown; Figure 5 It is Figure 1 It is a schematic view of a part of the structure shown; Figure 6 It is a schematic view of the installation of the mounting seat structure in the application; Figure 7 It is a schematic view of the structure of the seedling screening cylinder in the application; Figure 8 It is a schematic view of the internal partial structure of the seedling screening cylinder; Figure 9 It is a schematic view of the cross-sectional structure of the seedling screening cylinder; Figure 10 It is Figure 9 It is a schematic view of a part of the structure shown; Figure 11 It is a schematic view of the setting angle of the first spraying head and the baffle; Figure 12 It is a schematic view of the left and right oscillation of the seedling screening cylinder; Figure 13 It is a schematic view of the left and right oscillation of the seedling screening cylinder; Figure 14 It is a schematic view of the qualified seedlings transferred to the guide groove; Figure 15 It is Figure 14 It is an enlarged schematic view of the structure at A in the application; Figure 16 The schematic diagram of the water collecting tank structure in the application is shown in the figure. Figure 17 The schematic diagram of the first water pipe and the second water pipe connecting structure is shown in the figure.

[0022] In the figure: 1, seedling screening pool; 101, first water pipe; 102, first spray head; 103, second water pipe; 104, second spray head; 105, three-way valve; 106, water inlet main pipe; 11, protective shell; 12, material receiving plate; 121, baffle; 13, material feeding box; 14, first flow guide pipe; 2, seedling screening cylinder; 21, material inlet; 22, material outlet; 3, baffle; 31, temporary storage inclined port; 4, material collecting mechanism; 41, guide groove; 411, fixing frame; 42, flow guide plate; 43, second flow guide pipe; 5, water collecting tank; 501, connecting seat; 51, lower water tank port; 6, mounting seat; 601, guide rod; 7, driving mechanism; 71, driving motor; 711, motor seat; 72, driving gear; 73, driven gear ring; 8, horizontal power module; 81, end seat; 82, annular seat; 9, vertical power module; 91, U-shaped support seat; 92, connecting rod. DETAILED DESCRIPTION

[0023] The technical solutions of the application will be described below in combination with the accompanying drawings of the application.

[0024] In the description of the embodiments of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, and "fixing" means connected to each other and the relative positional relationship after connection is unchanged. The orientation language mentioned in the embodiments of the application is only the direction of the drawings, in order to better and more clearly illustrate and understand the embodiments of the application, and is not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0025] Embodiment 1 Please refer to Figures 1-17 The application provides a seedling screening machine for shellfish breeding, which comprises a seedling screening pool 1, a seedling screening cylinder 2, a material feeding part, a material receiving part, a pair of mounting seats 6 and a driving mechanism 7. The seedling screening pool 1 is fixedly arranged above a support frame (not marked in the figure), the support frame is welded by a plurality of square tubes, and the support frame has a plurality of vertically extending support legs. A universal wheel (not shown in the figure) with a brake function is installed at the bottom of the support leg, which facilitates overall movement. The seedling screening cylinder 2 is uniformly provided with a plurality of screen holes, the aperture of the screen hole is set according to the qualified seedling size, only allows small-volume seedlings with poor growth, disease and deformity to pass through, and the qualified seedlings are left in the seedling screening cylinder 2. The seedling screening cylinder 2 is horizontally arranged in the seedling screening pool 1 and keeps flush with the length direction of the seedling screening pool 1.

[0026] It is worth mentioning that, whether it is small volume seedling or qualified seedling, it is a living body, and has activity. When the lower part of the seedling screening cylinder 2 is immersed below the liquid level in the seedling screening pool 1, the living seedlings will automatically sink due to their own characteristics and will not actively float on the liquid surface. Therefore, during screening, the small volume seedlings that do not meet the requirements will pass through the screen hole and fall into the seedling screening pool 1.

[0027] Two mounting seats 6 are symmetrically arranged on both sides of the seedling screening pool 1, and the mounting seats 6 extend along the width direction of the seedling screening pool 1. One end of the seedling screening cylinder 2 is rotatably connected with the feeding port 21 connected with the feeding part, and the other end is rotatably connected with the discharging port 22 connected with the receiving part. The feeding port 21 and the discharging port 22 are respectively arranged below the two mounting seats 6. A plurality of uniformly inclined baffles 3 are fixed on the inner wall of the seedling screening cylinder 2 around the axis line thereof in a spaced manner. The baffles 3 and the inner wall of the seedling screening cylinder 2 form a temporary storage inclined port 31 for temporarily storing seedlings. A material collecting mechanism 4 extending along the length direction of the seedling screening cylinder 2 is arranged on the inner wall of the discharging port 22. The material collecting mechanism 4 is arranged higher than the axis line of the seedling screening cylinder 2. When the seedling screening cylinder 2 rotates, each temporary storage inclined port 31 can sequentially transfer the qualified seedlings upward to the material collecting mechanism 4, and the material collecting mechanism 4 can guide and deliver the qualified seedlings to one side of the discharging port 22.

[0028] As shown in Figure 7 , the feeding port 21 and the discharging port 22 are both horizontally arranged conical funnel-shaped and coaxial with the seedling screening cylinder 2. The diameters of the feeding port 21 and the discharging port 22 gradually increase towards the side close to the seedling screening cylinder 2. The smallest diameter part of the feeding port 21 and the discharging port 22 is a tubular structure for seedling flow.

[0029] As shown in Figure 8 and Figure 9 , the material collecting mechanism 4 includes a guide groove 41 and a pair of flow guide plates 42. A fixed frame 411 is fixed on the inner wall of the discharging port 22. One end of the guide groove 41 is fixedly connected with the fixed frame 411. The two flow guide plates 42 are symmetrically fixed on the upper sides of the guide groove 41. The two flow guide plates 42 are in an inverted eight-shaped structure. The depth of the guide groove 41 increases towards the side of the discharging port 22. The end of the guide groove 41 close to the discharging port 22 is connected with a second flow guide pipe 43. The second flow guide pipe 43 extends obliquely downward and is connected with the smallest diameter part of the discharging port 22.

[0030] As shown in Figure 2 and Figure 4As shown, the feeding part adopts a feeding box 13, which is fixedly arranged on the seedling screening pool 1 near one side of the feeding inlet 21, and the feeding box 13 is connected with a first flow guide pipe 14, which extends obliquely and is connected with the minimum diameter part of the feeding inlet 21; and a filter screen (not marked in the figure) is arranged in the feeding box 13, which is used to filter out the large-volume impurities mixed in the seedlings in advance, so as to avoid affecting the screening by shielding the screen holes when entering the seedling screening cylinder 2, and the filter screen is detachable for easy cleaning.

[0031] As shown in Figure 1 and Figure 3 , the receiving part adopts a receiving plate 12, which is obliquely installed through the side of the seedling screening pool 1, and the receiving plate 12 is fixed with a baffle 121 on both sides, and the receiving plate 12 and the two baffles 121 form an inclined chute structure, and the minimum diameter part of the discharge outlet 22 is connected with the chute structure.

[0032] A first water pipe 101 extending along the length direction of the seedling screening cylinder 2 is fixed on one side of the seedling screening pool 1 through a support, and a plurality of first spray heads 102 are installed on the first water pipe 101 along the length direction thereof at intervals, and the first spray heads 102 are inclined downward and face the seedling screening cylinder 2, which are used for spraying operation to the seedling screening cylinder 2.

[0033] As shown in Figure 3 , the driving mechanism 7 is arranged on one of the side mounting seats 6, which is used to drive the seedling screening cylinder 2 to rotate, and the driving mechanism 7 includes a driving motor 71 and a driving gear 72, and the top of one of the side mounting seats 6 is fixedly installed with a motor seat 711, the driving motor 71 is fixedly installed on the motor seat 711, and the driving gear 72 is fixed on the output shaft of the motor seat 711, and a driven gear ring 73 is fixedly sleeved on the outer wall of the seedling screening cylinder 2, and the driven gear ring 73 is engaged with the driving gear 72, and through the operation of the driving motor 71, the output shaft drives the driving gear 72 to rotate, and under the meshing transmission of the driving gear 72 and the driven gear ring 73, the rotating driving gear 72 can drive the driven gear ring 73 and the seedling screening cylinder 2 to rotate slowly, which provides effective driving for the rotating operation of the seedling screening cylinder 2.

[0034] The side end of the seedling screening pool 1 is also fixed with a protective cover 11, which covers the outside of the driving motor 71 and the driving gear 72, and is used for shielding and protection to prevent accidental touch and improve the safety during operation.

[0035] In addition, the driving motor 71 adopts a waterproof motor, and a waterproof structure is additionally provided outside, and the driving gear 72 and the driven gear ring 73 are both waterproof treated, such as brushing waterproof paint or plating waterproof layer outside, to adapt to the high humidity working environment, and in addition, the driving motor 71, the driving gear 72 and the driven gear ring 73 are regularly maintained and repaired to improve the overall working life of the driving mechanism 7.

[0036] As shown in Figure 11 The angle between the line connecting the fixed point of the baffle 3 and the screen cylinder 2 and the axis of the screen cylinder 2 and the baffle 3 is defined as X, wherein 45°≤X≤55°, and in this embodiment, X is preferably 50°. The baffle 3 is arranged at this angle to ensure that the amount of seedlings carried in the temporary storage bevel 31 is sufficient, and to avoid a large amount of seedlings from falling before the baffle 3 moves above the deflector 42.

[0037] The working principle of this embodiment is as follows: First, ensure that one third of the screen cylinder 2 is immersed below the liquid surface in the screening pool 1, pour the seedlings into the feeding box 13, and the seedlings flow into the screen cylinder 2 through the first flow guide pipe 14 and the feeding port 21, and are all sunk to the position below the liquid surface, so that the seedlings are suspended in the water body to avoid excessive accumulation and avoid damage to the seedlings due to excessive extrusion contact with the inner wall of the screen cylinder 2; Small volume seedlings pass through the screen hole below the screen cylinder 2, are discharged to the outside of the screen cylinder 2, and are collected in the screening pool 1, and the seedlings left in the screen cylinder 2 are qualified seedlings; After screening is completed, as shown in Figure 14 and Figure 15 The qualified seedlings are all distributed in the part of the screen cylinder 2 immersed below the liquid surface, and then the screen cylinder 2 is slowly rotated by the driving mechanism 7. During the rotation of the screen cylinder 2, the baffle 3 continuously traps qualified seedlings into the temporary storage bevel 31, and with the rotation of the screen cylinder 2, the baffle 3 can carry the qualified seedlings to move upward along the circular path; Until the baffle 3 moves above the deflector 42, the corresponding temporary storage bevel 31 changes in angle, and the qualified seedlings in it will fall onto the deflector 42 and slide down to the guide chute 41, and the qualified seedlings are inclinedly transported downstream by the guide chute 41, and then discharged to the receiving plate 12 through the second flow guide pipe 43 and the discharge port 22, and a container is arranged below the receiving plate 12 to receive the discharged seedlings; At the same time, the first spray head 102 continues to spray, and the water body in the spraying range enters the inside of the screen cylinder 2 through the screen hole, part of the water body flows into the temporary storage bevel 31, which can scours the qualified seedlings in the temporary storage bevel 31 to accelerate the seedlings to slide from the temporary storage bevel 31 to the collecting mechanism 4, on the other hand, a large amount of water falls on the deflector 42 and the guide chute 41, which is conducive to scouring the seedlings on the deflector 42 into the guide chute 41, in addition, the water body converges in the guide chute 41, which can scour the seedlings in the guide chute 41 downstream, thereby avoiding a large amount of seedlings adhering to the guide chute 41 and the deflector 42 and failing to be discharged; The seedling blocking piece 3 is immersed below the liquid surface again with the rotation of the seedling screening cylinder 2 and carries the seedlings upward again, and the process is repeated to continuously discharge qualified seedlings; it can be seen that, by using the above working mechanism, the seedlings can be conveyed without damage instead of the traditional auger.

[0038] Embodiment 2 Please refer to Figure 6 The difference between this embodiment and embodiment 1 is that: Specifically, the lower part of each of the two mounting seats 6 is fixed with a horizontal power module 8, and the movable end of each of the two horizontal power modules 8 is installed with an end seat 81, and an annular seat 82 is fixedly arranged on the outer wall of the feeding port 21 and the discharging port 22, and the two annular seats 82 are fixedly arranged corresponding to the end seat 81 on the same side; wherein the horizontal power module 8 can adopt a linear driving structure such as a hydraulic cylinder, a pneumatic cylinder, an electric push cylinder, a lead screw device, etc., and the horizontal power module 8 can drive the corresponding end seat 81 to move back and forth.

[0039] There is a clearance between the driving motor 71 and the driving gear 72 and the protective cover 11, which facilitates the active adjustment of the seedling screening cylinder 2, and the first flow guide pipe 14 is made of rubber hose and has deformation ability to adapt to the active adjustment of the seedling screening cylinder 2.

[0040] When the seedling screening cylinder 2 is partially immersed below the liquid surface, the two horizontal power modules 8 simultaneously drive the two end seats 81 to move back and forth at a frequency of 5-10 times per minute and an amplitude of 5-15 cm, thereby driving the seedling screening cylinder 2 to move back and forth synchronously, and when the seedlings are put into the seedling screening cylinder 2, the reciprocating movement of the seedling screening cylinder 2 forms an oscillation effect, which can accelerate the dispersion and screening of the seedlings, ensure the uniform distribution of the seedlings, and improve the thoroughness of the screening.

[0041] In addition, as shown in Figure 12 and Figure 13 (the straight-line arrow in the figure is the moving direction of the seedling screening cylinder 2, the bent arrow is the moving direction of the water body and the seedlings relative to the seedling blocking piece 3, and the dashed line is the liquid surface), when the seedling screening cylinder 2 moves back and forth, the water body moves relative to the seedling blocking piece 3, and the water body impacts on the seedling blocking piece 3 to form a turbulent flow effect, which intensifies the turning of the seedlings in the liquid and improves the dispersion degree of the seedlings, further improving the thoroughness of the screening; the seedling blocking piece 3 serves as both a blocking piece for carrying the seedlings and a turbulent flow piece, achieving two purposes at once.

[0042] Embodiment 3 Please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 The difference between this embodiment and embodiment 2 is that: The two mounting seats 6 are vertically provided with guide rods 601 at one end, and the bottom ends of the two guide rods 601 are fixed on the inner bottom wall of the seedling screening tank 1; the other end of the two mounting seats 6 is fixedly provided with a connecting rod 92; two U-shaped support seats 91 are fixedly arranged below the seedling screening tank 1, and a vertical power module 9 is vertically and fixedly arranged on each of the two U-shaped support seats 91; the movable end of each of the two vertical power modules 9 is fixedly connected with the bottom end of the connecting rod 92; wherein the vertical power module 9 can be a linear driving structure such as a hydraulic cylinder, an air cylinder, an electric push cylinder, a lead screw device, etc., and the vertical power module 9 can drive the connecting rod 92 to move up and down.

[0043] During the screening process, the vertical power module 9 works, and under the fixed connection of the connecting rod 92, the two mounting seats 6 and the seedling screening cylinder 2 can be driven to reciprocatingly move up and down; when the seedling screening cylinder 2 moves up, the water body moves downward relative to the seedling screening cylinder 2; when the seedling screening cylinder 2 moves down, the water body moves upward relative to the seedling screening cylinder 2; thus, the water body can flush out the seedlings blocked in the screen holes, thereby achieving the purpose of dredging the screen holes and avoiding the blockage of the screen holes to affect the screening work.

[0044] Embodiment 4 Please refer to Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 16 , the difference between this embodiment and embodiment 3 is: The connecting seat 501 is fixed on the outer wall of the feeding port 21, the end of the connecting seat 501 is fixed with a water collecting groove 5 extending along the length direction of the seedling screening cylinder 2, the bottom of the water collecting groove 5 is an arc surface matched with the seedling screening cylinder 2, and the bottom of the water collecting groove 5 is movably attached to the topmost part of the seedling screening cylinder 2, so that the seedling screening cylinder 2 and the water collecting groove 5 have relative movement ability, and the bottom of the water collecting groove 5 is provided with a water outlet 51 extending along the length direction of the seedling screening cylinder 2 on both sides, and the spraying range of the first spray head 102 can cover the top opening of the water collecting groove 5.

[0045] As shown in Figure 11 , the angle between the axis of the first spray head 102 and the horizontal plane is Y, wherein 35°≤Y≤45°, and in this embodiment, Y is preferably 45°, the first spray head 102 is arranged at this angle, and the spraying range thereof can cover the top opening of the water collecting groove 5 and the screen holes beside the water collecting groove 5, so as to ensure that the water storage in the water collecting groove 5 is sufficient, and a large amount of water can also flow through the screen holes to the temporary storage inclined port 31 and the guide groove 41 and the guide plate 42.

[0046] Part of the water sprayed by the first spray head 102 falls into the water collecting groove 5, and since the two water outlets 51 are relatively narrow and can only drain water when aligned with the screen holes, the water inflow in the water collecting groove 5 is greater than the water outflow, thereby ensuring that the water collecting groove 5 continuously stores water.

[0047] As Figure 15 shown, as the seedling screening cylinder 2 rotates, when the lower water groove 51 corresponds to the screen hole, the water in the water collecting groove 5 flows into the seedling screening cylinder 2 through the lower water groove 51 and the screen hole, when the baffle 3 passes through the position, the water enters the temporary storage inclined port 31, and the qualified seedlings in the temporary storage inclined port 31 can be further flushed, and the water amount in the water collecting groove 5 is large, which guarantees sufficient water inflow and strong flushing capacity; in addition, the lower water groove 51 is provided with two, so that the same temporary storage inclined port 31 passes through the two lower water grooves 51 in turn during rotation, realizes twice flushing effect, and guarantees that the qualified seedlings in the temporary storage inclined port 31 are as much as possible to be drained.

[0048] Example 5 Please refer to Figure 1 and Figure 4 , the difference between this embodiment and example 4 is: The second water pipe 103 is fixed on the feeding box 13 through the support, a plurality of second spray heads 104 are installed on the second water pipe 103 along the length direction of the feeding box 13 in a spaced manner, and water is sprayed into the feeding box 13 through the second spray head 104 during feeding, which is beneficial to flush the seedlings into the seedling screening cylinder 2.

[0049] As Figure 17 shown, the ends of the first water pipe 101 and the second water pipe 103 are respectively communicated with two interfaces of the three-way valve 105, the other interface of the three-way valve 105 is connected with the water inlet main pipe 106, and the water inlet main pipe 106 is connected with a water pump (not shown in the figure, and a filter structure is arranged outside the water pump to intercept seedlings and impurities) arranged in the seedling screening pool 1; the water in the seedling screening pool 1 is pumped into the water inlet main pipe 106 through the water pump, and by adjusting the three-way valve 105, the water can be selectively delivered into the first water pipe 101 or the second water pipe 103, or the water can be simultaneously delivered into the first water pipe 101 and the second water pipe 103, so as to supply water for the first spray head 102 and the second spray head 104, and realize the recycling of the water.

[0050] In addition, the seedling screening pool 1 is also provided with a water supplement pipeline (not shown in the figure) and a discharge pipeline (not marked in the figure), the water supplement pipeline is communicated with an external water supply device to supplement water into the seedling screening pool 1, and the discharge pipeline is used to discharge the unqualified seedlings and impurities temporarily stored in the seedling screening pool 1.

[0051] The control mode of the present application is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of those skilled in the art, and the power supply also belongs to the common knowledge in the art, so the control mode and circuit connection of the present application will not be explained in detail.

[0052] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the scope of the application.

Claims

1. A shellfish fry screening machine, comprising a fry screening tank (1), a fry screening cylinder (2), a feeding part, a receiving part, a pair of mounting seats (6) and a driving mechanism (7), the fry screening cylinder (2) is arranged in the fry screening tank (1), the two mounting seats (6) are symmetrically arranged on the two sides of the fry screening tank (1), and the driving mechanism (7) is arranged on one of the mounting seats (6) and used for driving the fry screening cylinder (2) to rotate, characterized in that: one end of the fry screening cylinder (2) is rotatably connected with a feeding inlet (21) connected with the feeding part, the other end is rotatably connected with a discharging outlet (22) connected with the receiving part, and the feeding inlet (21) and the discharging outlet (22) are respectively arranged below the two mounting seats (6); a plurality of baffle plates (3) are fixed on the inner wall of the fry screening cylinder (2) around the axis of the fry screening cylinder (2) at intervals, the baffle plates (3) are uniformly and symmetrically arranged, and temporary storage inclined openings (31) are formed between the baffle plates (3) and the inner wall of the fry screening cylinder (2); a collecting mechanism (4) extending along the length direction of the fry screening cylinder (2) is arranged on the inner wall of the discharging outlet (22), and the collecting mechanism (4) is arranged higher than the axis of the fry screening cylinder (2); when the fry screening cylinder (2) rotates, each temporary storage inclined opening (31) can sequentially transfer qualified fry to the collecting mechanism (4), and the collecting mechanism (4) can guide and convey the qualified fry to one side of the discharging outlet (22).

2. The shellfish fry screening machine according to claim 1, characterized in that: the collecting mechanism (4) comprises a guide groove (41) and a pair of flow guide plates (42); one end of the guide groove (41) is fixed on the inner wall of the discharging outlet (22) through a fixing frame (411); the two flow guide plates (42) are symmetrically fixed on the upper sides of the guide groove (41) and are in an inverted eight-shaped structure; the discharging outlet (22) is a horizontally arranged conical funnel, and the diameter thereof is larger closer to the fry screening cylinder (2); the depth of the guide groove (41) gradually increases towards one side of the discharging outlet (22), and the guide groove (41) is connected with the smallest diameter part of the discharging outlet (22) through a second flow guide pipe (43).

3. The shellfish fry screening machine according to claim 1, characterized in that: the feeding part is a feeding box (13); the feeding box (13) is fixedly arranged on one side of the fry screening tank (1) close to the feeding inlet (21); the feeding inlet (21) is a horizontally arranged conical funnel, and the diameter thereof is larger closer to the fry screening cylinder (2); and the smallest diameter part of the feeding inlet (21) is communicated with the feeding box (13) through a first flow guide pipe (14).

4. The shellfish fry screening machine according to claim 1, characterized in that: the receiving part is a receiving plate (12); the receiving plate (12) is obliquely arranged through the side of the fry screening tank (1), two baffle plates (121) are fixed on the two sides of the receiving plate (12), and the receiving plate (12) and the two baffle plates (121) form an inclined chute structure; and the smallest diameter part of the discharging outlet (22) is connected with the chute structure. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. The larva screening machine for shellfish breeding of claim 1, characterized in that: A horizontal power module (8) is fixed below each of the two mounting seats (6), and an end seat (81) is installed on each of the two horizontal power modules (8), wherein the horizontal power module (8) can drive the corresponding end seat (81) to move back and forth. An annular seat (82) is fixedly arranged on the outer wall of the feeding port (21) and the discharging port (22), and the two annular seats (82) are fixedly arranged corresponding to the end seat (81) on the same side.

6. The larva screening machine for shellfish breeding of claim 1, characterized in that: A guide rod (601) is slidably installed at one end of each of the two mounting seats (6), and the bottom end of each of the two guide rods (601) is fixed on the inner bottom wall of the larva screening tank (1). A connecting rod (92) is fixedly arranged at the other end of each of the two mounting seats (6). Two U-shaped support seats (91) are fixedly arranged below the larva screening tank (1), and a vertical power module (9) is vertically fixedly installed on each of the two U-shaped support seats (91). The bottom end of each of the two connecting rods (92) is connected to the vertical power module (9) in a one-to-one manner. The vertical power module (9) can drive the connecting rod (92) to move up and down.

7. The larva screening machine for shellfish breeding of claim 3, characterized in that: A first water pipe (101) extending along the length direction of the screening cylinder (2) is fixed on one side of the screening cylinder (2) on the larva screening tank (1) through a support, and a plurality of first spray heads (102) are installed on the first water pipe (101) along the length direction of the first water pipe (101) in a spaced manner. The first spray head (102) is inclined downward and faces the screening cylinder (2). A second water pipe (103) is fixed on the feeding box (13) through a support, and a plurality of second spray heads (104) are installed on the second water pipe (103) along the length direction of the feeding box (13) in a spaced manner.

8. The larva screening machine for shellfish breeding of claim 7, characterized in that: A connecting seat (501) is fixed on the outer wall of the feeding port (21), and an end of the connecting seat (501) is fixed with a water collecting groove (5) extending along the length direction of the screening cylinder (2). The bottom of the water collecting groove (5) is an arc surface matched with the screening cylinder (2), and the bottom of the water collecting groove (5) is movably attached to the top of the screening cylinder (2). A water outlet groove (51) extending along the length direction of the screening cylinder (2) is formed on both sides of the bottom of the water collecting groove (5). The spraying range of the first spray head (102) can cover the top opening of the water collecting groove (5).

9. The larva screening machine for shellfish breeding of claim 1, characterized in that: The driving mechanism (7) comprises a driving motor (71) and a driving gear (72). A motor seat (711) is fixedly installed on the top of the mounting seat (6) near the discharging port (22), and the driving motor (71) is fixedly installed on the motor seat (711). The driving gear (72) is fixed on the output shaft of the motor base (711); The driven gear ring (73) is fixed on the outer wall of the seedling screening cylinder (2), and the driven gear ring (73) is engaged with the driving gear (72); The side end of the seedling screening pool (1) is further fixed with a protective shell (11), and the protective shell (11) covers the outside of the driving motor (71) and the driving gear (72).

10. The seedling screening machine for shellfish breeding according to claim 7, characterized in that: The end of the first water pipe (101) and the end of the second water pipe (103) are respectively communicated with two interfaces of a three-way valve (105); The other interface of the three-way valve (105) is connected with a water inlet main pipe (106), and the water inlet main pipe (106) is connected with a water pump arranged in the seedling screening pool (1).

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