Incubator for breeding

Abstract

The utility model relates to hatching device technical field, concretely relates to a hatching device for breeding. The device includes hatching box, hatching tray, first egg turning mechanism and hot air circulation component, is provided with horizontal baffle in hatching box, and horizontal baffle divides hatching box into hatching room and drive room, first egg turning mechanism includes vertical rod, sliding sleeve and telescopic component, and vertical rod is vertically installed in hatching room and is slidably connected with hatching box, telescopic component can drive vertical rod reciprocating linear motion along vertical direction, hatching tray is installed in hatching room, and one end along length direction of hatching tray is hinged with hatching box, and the other end is inserted in sliding sleeve, and the other end of sliding sleeve is hinged with vertical rod, hot air circulation component is used for heating hatching room. The device can make poultry egg rotate in the hatching process based on first egg turning mechanism and second egg turning mechanism and drive hatching tray swing, and then improve the heating uniformity of poultry egg circumferential and axial, and then reduce the weak poultry rate of poultry egg hatching.

Description

Technical Field

[0001] This utility model relates to the field of incubation device technology, specifically to an incubation device for aquaculture. Background Technology

[0002] Conventional incubation devices typically use heating wires inside the incubator, which are then circulated by a fan to create a flow of hot air, thus ensuring a more uniform temperature distribution within the incubator. However, temperature is a crucial factor determining embryonic development during egg incubation. When using these conventional devices, eggs at the back of the incubator receive less heat due to being blocked by eggs in front, leading to uneven embryonic development and significant differences in incubation periods among eggs in the same batch. Simultaneously, eggs directly facing the heat source are in a relatively high-temperature zone, making their embryos more susceptible to deformities or even death. Furthermore, for an individual egg, being in a position where one end faces the heat source while the other is facing away from it for an extended period can cause uneven embryonic development, ultimately resulting in a higher rate of weak chicks.

[0003] As the poultry farming industry chain raises its requirements for chick quality, the hatching industry is paying more attention to chick health, gradually shifting from solely pursuing high hatchability to simultaneously pursuing low rates of weak chicks. Chinese patent CN201520736823.0 discloses a miniature incubator that uses a technique where two adjacent rollers form a placement area for the eggs. A drive motor rotates the rollers, and under the action of friction, the eggs rotate 180°, resulting in more even heating. This miniature incubator allows for more uniform heating of all parts of the egg during incubation, promoting balanced embryonic development and reducing the rate of weak chicks. However, when using this miniature incubator, the two ends of the egg along the roller axis, being closer to the rotating shaft, still receive less heat than the middle part along the roller axis. Utility Model Content

[0004] The purpose of this utility model is to provide an incubation device for aquaculture that can at least partially overcome the above-mentioned technical problems. It can make the poultry eggs rotate and drive the incubation tray to swing during the incubation process based on the first egg-turning mechanism and the second egg-turning mechanism, thereby improving the uniformity of heating of the poultry eggs in the circumferential and axial directions and reducing the rate of weak poultry eggs during incubation.

[0005] This utility model provides an incubation device for aquaculture, comprising: an incubation box, an incubation tray, a first egg-turning mechanism, and a hot air circulation assembly; a transverse partition is provided inside the incubation box, dividing the incubation box into an incubation chamber and a drive chamber; the first egg-turning mechanism includes a vertical rod, a sliding sleeve, and a telescopic assembly; the vertical rod is vertically installed in the incubation chamber and slidably connected to the incubation box, and the lower end of the vertical rod extends through the transverse partition into the drive chamber; the telescopic assembly is installed in the drive chamber and can drive the vertical rod to reciprocate linearly in the vertical direction; the incubation tray is installed in the incubation chamber, one end of the incubation tray along its length is hinged to the incubation box, and the other end is inserted into the sliding sleeve, the other end of the sliding sleeve being hinged to the vertical rod; the hot air circulation assembly is used to heat the incubation chamber.

[0006] Furthermore, the telescopic assembly includes a screw, a sleeve, a connecting rod, and a first motor; the screw is horizontally installed in the drive chamber and rotatably connected to the incubator, and the sleeve is screwed onto the screw; one end of the connecting rod is hinged to the sleeve, and the other end is hinged to the lower end of the vertical rod; the first motor is a stepper motor, which is installed in the drive chamber and fixedly connected to the incubator, and is used to drive the screw to rotate.

[0007] Furthermore, the screw is a double-ended screw, and there are two screw sleeves and two connecting rods, with the two screw sleeves located on both sides of the vertical rod.

[0008] Furthermore, the incubation device also includes a second egg-turning mechanism, which includes shafts, a second motor, and a rack. There are multiple shafts, each rotatably connected to the incubation tray, with its axial direction parallel to the length direction of the incubation tray. A first gear is fixedly mounted on each shaft, and the shafts are arranged in an array along the width direction of the incubation box with a gap between adjacent shafts. The rack is slidably connected to the incubation tray, with its length direction parallel to the width direction of the incubation tray. Each first gear meshes with the rack. The second motor is a stepper motor, fixedly connected to the incubation tray, and a second gear is fixedly mounted on its output shaft, meshing with the rack.

[0009] Furthermore, each of the shafts includes a core and a flexible layer, the flexible layer covering the outer peripheral surface of the core.

[0010] Furthermore, the flexible layer is multi-layered, with each flexible layer having an equal thickness of 5mm to 8mm.

[0011] Furthermore, the hot air circulation assembly includes a fan and a heating unit; an air inlet is provided at the top of the incubator, and an air outlet is provided on the transverse partition; the air inlet of the fan is connected to the air outlet through an air inlet pipe, and the air outlet of the fan is connected to the air inlet through an air outlet pipe; the heating unit is disposed inside the air outlet pipe.

[0012] Furthermore, there are multiple incubation trays, and each incubation tray is arranged in a vertical array within the incubation chamber; the air inlet is located above the incubation trays.

[0013] Furthermore, a four-way valve is connected to the air inlet pipe. The four-way valve includes a valve core, a first interface, a second interface, a third interface, and a fourth interface. The air inlet is connected to the first interface, the air outlet is connected to the second interface, and both the third and fourth interfaces are connected to the atmosphere. By rotating the valve core, the four-way valve can switch between a first state and a second state. In the first state, the first interface is connected to the second interface, and the third and fourth interfaces are closed. In the second state, the first interface is connected to the fourth interface, and the second interface is connected to the third interface.

[0014] Furthermore, the heating unit includes an electric heating tube and several heat-conducting fins. The electric heating tube is perpendicular to the length direction of the air outlet pipe. Each of the heat-conducting fins is arranged in an array along the length direction of the electric heating tube and is fixedly connected to the electric heating tube. There is a gap between two adjacent heat-conducting fins.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The incubation device for aquaculture provided in this embodiment of the present disclosure, by setting a first egg-turning mechanism, enables one end of the incubation tray inserted in the sliding sleeve to move up and down in the vertical direction under the action of the telescopic component, thereby causing the incubation tray to swing up and down around the axis that is hinged to the incubation box, thereby adjusting the orientation of the poultry eggs placed in the incubation tray, so that different parts of the poultry eggs face the flowing hot air formed by the hot air circulation component, which can improve the heating uniformity between different parts of the poultry eggs, thereby promoting the balanced development of the embryo in different parts during the incubation process. 2. The incubation device for aquaculture provided in this embodiment of the invention, by setting a second egg-turning mechanism, uses a second motor to drive the rack to move back and forth along the width of the incubation tray, thereby driving each shaft to rotate synchronously. This allows the eggs placed above the gap between two adjacent shafts to rotate back and forth, thereby achieving uniform heating of the eggs circumferentially. In addition, it is worth noting that eggs are not perfect ellipsoids; they have a large end and a small end. When the shaft rotates in one direction, the eggs above the gap between adjacent shafts will move along the axial direction of the shaft while rotating on their own axis. Obviously, when placing the eggs above the gap between adjacent shafts, placing the large ends or small ends of the two adjacent eggs together can overcome this problem. However, this is time-consuming and labor-intensive for large-scale incubation, and the squeezing is strong when the adjacent eggs move towards each other. In this embodiment, the reciprocating rotation of the shaft can offset the displacement of the eggs along the axial direction of the shaft under unidirectional rotation of the shaft, without the need to deliberately adjust the orientation of the two ends of the eggs, avoiding continuous unidirectional movement of the eggs and reducing axial squeezing between the eggs. 3. The aquaculture hatching device provided in this embodiment of the present disclosure, by setting the four-way valve on the air inlet pipe, can change the connection state of the four-way valve by rotating the valve core when ventilation is required, thereby ensuring the required oxygen content in the hatching chamber. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the incubation device for aquaculture, drawn according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the incubation device for aquaculture, drawn according to an embodiment of the present invention; Figure 3 According to Figure 2 A magnified view of a portion of area A; Figure 4 A simplified diagram of the mechanism motion of the first egg-turning mechanism according to an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of an incubation tray according to an embodiment of the present utility model; Figure 6 This is a cross-sectional view of an incubation tray drawn according to an embodiment of the present invention; Figure 7 A cross-sectional view of a four-way valve drawn according to an embodiment of the present utility model; Figure 8 This is another cross-sectional view of the incubation device for aquaculture drawn according to an embodiment of the present invention; Figure 9 According to Figure 8 A magnified view of a portion of area B.

[0017] The attached diagram shows the markings and corresponding component names: 1-Incubator; 11-Horizontal partition; 12-Incubation chamber; 13-Drive chamber; 14-Air inlet; 15-Air outlet; 2-Incubation tray; 31-Vertical rod; 32-Sliding sleeve; 33-Screw; 34-Screw sleeve; 35-Connecting rod; 36-First motor; 41-Fan; 42-Air inlet pipe; 43-Air outlet pipe; 44-Four-way valve; 441-First interface; 442-Second interface; 443-Third interface; 444-Fourth interface; 445-Valve core; 45-Electric heating element; 46-Heat-conducting fins; 51-Shaft; 511-Shaft core; 512-Flexible layer; 52-Second motor; 53-Rack; 54-First gear; 55-Second gear. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0019] Conventional incubation devices typically use heating wires inside the incubator, which are then circulated by a fan to create a flow of hot air, thus ensuring a more uniform temperature distribution within the incubator. However, temperature is a crucial factor determining embryonic development during egg incubation. When using these conventional devices, eggs at the back of the incubator receive less heat due to being blocked by eggs in front, leading to uneven embryonic development and significant differences in incubation periods among eggs in the same batch. Simultaneously, eggs directly facing the heat source are in a relatively high-temperature zone, making their embryos more susceptible to deformities or even death. Furthermore, for an individual egg, being in a position where one end faces the heat source while the other is facing away from it for an extended period can cause uneven embryonic development, ultimately resulting in a higher rate of weak chicks.

[0020] As the poultry farming industry chain raises its requirements for chick quality, the hatching industry is paying more attention to chick health, gradually shifting from solely pursuing high hatchability to simultaneously pursuing low rates of weak chicks. Chinese patent CN201520736823.0 discloses a miniature incubator that uses a technique where two adjacent rollers form a placement area for the eggs. A drive motor rotates the rollers, and under the action of friction, the eggs rotate 180°, resulting in more even heating. This miniature incubator allows for more uniform heating of all parts of the egg during incubation, promoting balanced embryonic development and reducing the rate of weak chicks. However, when using this miniature incubator, the two ends of the egg along the roller axis, being closer to the egg's rotation axis, still receive less heat than the middle part along the roller axis.

[0021] Therefore, this utility model proposes an incubation device for breeding, which can drive the incubation tray to swing based on the first egg-turning mechanism and make the poultry eggs rotate during the incubation process through the second egg-turning mechanism, thereby improving the uniformity of heating of the poultry eggs in the circumferential and axial directions, and thus reducing the rate of weak poultry eggs during incubation.

[0022] Example 1 like Figures 1 to 4 As shown, this embodiment provides an incubation device for aquaculture, which includes an incubation box 1, an incubation tray 2, a first egg-turning mechanism, and a hot air circulation assembly; A horizontal partition 11 is provided inside the incubator 1, which divides the incubator 1 into an incubation chamber 12 and a drive chamber 13. The first egg-turning mechanism includes a vertical rod 31, a sliding sleeve 32, and a telescopic assembly. The vertical rod 31 is vertically installed in the incubation chamber 12 and slidably connected to the incubation box 1. The lower end of the vertical rod 31 extends through the transverse partition 11 into the drive chamber 13. The telescopic assembly is installed in the drive chamber 13 and can drive the vertical rod 31 to reciprocate linearly in the vertical direction. The incubation tray 2 is installed inside the incubation chamber 12. One end of the incubation tray 2 along its length is hinged to the incubation box 1, and the other end is inserted into the sliding sleeve 32. The other end of the sliding sleeve 32 is hinged to the vertical rod 31. The hot air circulation assembly is used to heat the incubation chamber 12.

[0023] Accordingly, the incubation device for aquaculture provided in this embodiment, by setting a first egg-turning mechanism, enables one end of the incubation tray 2 inserted into the sliding sleeve 32 to move up and down in the vertical direction under the action of the telescopic component, thereby causing the incubation tray 2 to swing up and down around the axis that is hinged to the incubation box 1. This allows the orientation of the poultry eggs placed in the incubation tray 2 to be adjusted, so that different parts of the poultry eggs face the flowing hot air formed by the hot air circulation component, which can improve the heat uniformity between different parts of the poultry eggs, thereby promoting the balanced development of the embryo in all parts during the incubation process.

[0024] It should be understood that during the incubation process, turning the eggs increases friction and contact between them, and frequent turning may cause bumps and injuries. In a specific practice of this embodiment, the telescopic component performs telescopic movements intermittently, with an interval of 1 hour (meaning that the free end of the telescopic component extends for 1 hour before retracting, and then extends again for 1 hour after retracting).

[0025] Specifically, such as Figures 3 to 4 As shown, the telescopic assembly includes a screw 33, a screw sleeve 34, a connecting rod 35, and a first motor 36; The screw 33 is horizontally installed in the drive chamber 13 and rotatably connected to the incubator 1. The screw sleeve 34 is screwed onto the screw 33. One end of the connecting rod 35 is hinged to the screw sleeve 34, and the other end is hinged to the lower end of the vertical rod 31. The first motor 36 is a stepper motor. The first motor 36 is installed in the drive chamber 13 and fixedly connected to the incubator 1. The first motor 36 is used to drive the screw 33 to rotate.

[0026] Accordingly, the incubation device for aquaculture provided in this embodiment utilizes a first motor 36 to drive the screw 33 to reciprocate, thereby pushing the screw sleeve 34 to reciprocate along the axial direction of the screw 33. The reciprocating movement of the screw sleeve 34 acts on the vertical rod 31 through the connecting rod 35, causing the vertical rod 31 to reciprocate in the vertical direction (please refer to...). Figure 3 When the screw 33 rotates, causing the left sliding sleeve 32 to move to the right, the screw sleeve 34 acts on the vertical rod 31 through the connecting rod 35, causing the vertical rod 31 to move upward. Similarly, please refer to... Figure 4 When the screw 33 rotates, causing the left sliding sleeve 32 to move to the left, the screw sleeve 34 acts on the vertical rod 31 through the connecting rod 35, causing the vertical rod 31 to move downward. On the one hand, the screw thread can slow down the reciprocating motion of the vertical rod 31, thereby allowing the incubation tray 2 to swing gently, avoiding damage to the eggs and better protecting them, thus ensuring the hatching rate. On the other hand, the self-locking characteristic of the screw thread can be used to ensure that the position of the vertical rod 31 is reliably locked when the first motor 36 stops running.

[0027] Preferably, in order to reduce the torque applied to the connecting rod 35 by the threaded sleeve 34, the threaded sleeve 34 is slidably connected to the incubator 1 and the direction of their relative sliding is parallel to the axial direction of the screw 33.

[0028] Preferably, the screw 33 is a double-ended screw 33, and there are two screw sleeves 34 and two connecting rods 35. The two screw sleeves 34 are located on both sides of the vertical rod 31, and the two screw sleeves 34 are respectively engaged with one direction of the thread of the double-ended screw 33.

[0029] Accordingly, the incubation device for aquaculture provided in this embodiment, by setting a set of screw sleeves 34-connecting rods 35 on both sides of the vertical rod 31, is conducive to the force balance of the vertical rod 31, and thus allows it to slide smoothly.

[0030] Example 2 like Figures 1 to 6 As shown, this embodiment is based on embodiment 1, the difference being that in this embodiment: The incubation device also includes a second egg-turning mechanism, which includes a shaft 51, a second motor 52, and a rack 53. There are multiple shafts 51. Each shaft 51 is rotatably connected to the incubation tray 2 and the axial direction of the shaft 51 is parallel to the length direction of the incubation tray 2. A first gear 54 is fixedly provided on each shaft 51. Each shaft 51 is arranged in an array along the width direction of the incubation box 1 and there is a gap between adjacent shafts 51. The rack 53 is slidably connected to the hatching tray 2 and the length direction of the rack 53 is parallel to the width direction of the hatching tray 2. Each of the first gears 54 meshes with the rack 53. The second motor 52 is a stepper motor. The second motor 52 is fixedly connected to the incubation tray 2. A second gear 55 is fixedly installed on the output shaft of the second motor 52. The second gear 55 meshes with the rack 53.

[0031] Accordingly, the incubation device for aquaculture provided in this embodiment, by setting a second egg-turning mechanism, uses the reciprocating rotation of the second motor 52 to drive the rack 53 to move reciprocally along the width direction of the incubation tray 2, thereby driving each shaft 51 to rotate synchronously. This allows the poultry eggs placed above the gap between two adjacent shafts 51 to rotate back and forth, thereby achieving uniform circumferential heating of the poultry eggs. In addition, it is worth noting that poultry eggs are not perfectly ellipsoidal; they have a large end and a small end. When the shaft 51 rotates in one direction, the poultry eggs placed above the gap between adjacent shafts 51 will rotate back and forth. While the egg rotates, it also moves along the axial direction of the shaft 51. Obviously, when placing eggs above the gap between adjacent shafts 51, this problem can be overcome by placing the large ends or small ends of the two adjacent eggs together. However, this is time-consuming and laborious for large-scale incubation, and the squeezing is strong when adjacent eggs move towards each other. In this embodiment, the reciprocating rotation of the shaft 51 can offset the displacement of the eggs along the axial direction of the shaft 51 under the unidirectional rotation of the shaft 51. There is no need to deliberately adjust the orientation of the two ends of the eggs, thus avoiding continuous unidirectional movement of the eggs and reducing axial squeezing between the eggs.

[0032] Preferably, each of the shafts 51 includes a core 511 and a flexible layer 512, wherein the flexible layer 512 covers the outer peripheral surface of the core 511.

[0033] Accordingly, the incubation device for aquaculture provided in this embodiment, by setting a flexible layer 512, enables flexible contact between the poultry egg and the shaft 51, reducing collisions. In addition, the flexible layer 512 can also increase the coefficient of friction between the poultry egg and the shaft 51, thereby ensuring that the poultry egg rotates smoothly when the shaft 51 rotates.

[0034] More preferably, the flexible layer 512 is multi-layered, and each flexible layer 512 has an equal thickness of 5mm to 8mm.

[0035] Accordingly, the incubation device for aquaculture provided in this embodiment can select the appropriate number of flexible layers 512 based on the type of poultry eggs to be incubated (such as chicken eggs, duck eggs, and goose eggs), thereby making the gap width between two adjacent shafts 51 match the size of the poultry eggs to be incubated, thus increasing the applicability of the incubation device for aquaculture.

[0036] Example 3

[0037] like Figures 1 to 9 As shown, this embodiment is based on embodiment 1, the difference being that in this embodiment: The hot air circulation assembly includes a fan 41 and a heating unit; An air inlet 14 is provided on the top of the incubator 1, and an air outlet 15 is provided on the horizontal partition 11. The air inlet of the fan 41 is connected to the air outlet 15 through an air inlet pipe 42, and the air outlet of the fan 41 is connected to the air inlet 14 through an air outlet pipe 43. The heating unit is located inside the air outlet duct 43.

[0038] Preferably, the fan 41 is a cross-flow fan 41.

[0039] Specifically, the heating unit includes an electric heating tube 45 and several heat-conducting fins 46. The electric heating tube 45 is perpendicular to the length direction of the air outlet duct 43. Each heat-conducting fin 46 is arranged in an array along the length direction of the electric heating tube 45 and is fixedly connected to the electric heating tube 45. There is a gap between two adjacent heat-conducting fins 46.

[0040] Accordingly, the aquaculture incubation device provided in this embodiment, by setting the hot air circulation component, can generate a continuous unidirectional flow of hot air in the incubation chamber 12, thereby providing a suitable incubation temperature atmosphere for the incubation chamber 12.

[0041] Preferably, a four-way valve 44 is connected to the air inlet pipe 42. The four-way valve 44 includes a valve core 445, a first interface 441, a second interface 442, a third interface 443, and a fourth interface 444. The air inlet is connected to the first interface 441, the air outlet 15 is connected to the second interface 442, and the third interface 443 and the fourth interface 444 are both connected to the atmosphere. By rotating the valve core 445, the four-way valve 44 can be switched between a first state and a second state; in the first state, the first interface 441 is connected to the second interface 442, and the third interface 443 and the fourth interface 444 are closed; in the second state, the first interface 441 is connected to the fourth interface 444, and the second interface 442 is connected to the third interface 443.

[0042] Accordingly, the aquaculture hatching device provided in this embodiment, by setting the four-way valve 44 on the air inlet pipe 42, can change the connection state of the four-way valve 44 by rotating the valve core 445 when ventilation is required; obviously, in the first state, the hot air in the hatching device is in hot air internal circulation, while in the second state, the fan 41 draws fresh air from the external environment (such as outdoors) into the hatching chamber 12 and pushes the original hot air in the hatching chamber 12 out to the external environment, thereby ensuring the required oxygen content of the hatching chamber 12; obviously, there should be an appropriate distance between the position where the third interface 443 is connected to the atmosphere and the position where the fourth interface 444 is connected to the atmosphere, so as to avoid the air that has just been discharged from the hatching chamber 12 being drawn back into the hatching chamber 12 when ventilation is required.

[0043] Preferably, there are multiple incubation trays 2, and each incubation tray 2 is arranged in an array along the vertical direction in the incubation chamber 12; The air inlet 14 is located above the incubation tray 2.

[0044] Accordingly, hot air from the exhaust duct 43 enters from above the incubation chamber 12 and passes through the gaps between the eggs in the incubation trays 2, layer by layer, to heat the eggs. After the first egg-turning mechanism drives the incubation trays 2 to swing, the uppermost incubation tray 2 changes its angle to face the hot air. At the same time, the change in the angle between the eggs in the incubation trays 2 also changes the angle at which the hot air enters the next incubation tray 2 from the previous one. This changes the flow path of the hot air from top to bottom in the incubation chamber 12, which is conducive to a more uniform distribution of the hot air in the incubation chamber 12.

[0045] Preferably, the incubation device for aquaculture further includes a control element, wherein the first motor 36 and each of the second motors 52 are signal-connected to the control element; The control element controls the first motor 36 to rotate forward by a first preset angle according to a first preset time interval, and controls the first motor 36 to rotate backward by a second preset angle according to a second preset time interval; the first preset time interval is equal to the second preset time interval, and the first preset angle is equal to the second preset angle; it should be understood that during the rotation of the first motor 36, the screw sleeve 34 is always threadedly connected to the screw 33; The control element controls each of the second motors 52 to rotate forward by a third preset angle according to a third preset time interval, and controls the second motors 52 to rotate backward by a fourth preset angle according to a fourth preset time interval; the third preset time interval is equal to the fourth preset time interval, and the third preset angle is equal to the fourth preset angle; it should be understood that during the process of the second motor 52 rotating by the third preset angle, the rotation angle of the poultry egg is equal to 180°.

[0046] Preferably, a plurality of thermocouples are also installed in the incubation chamber 12. The electric heating tube 45 and each of the thermocouples are signal-connected to the control element. The control element controls the heating power of the electric heating tube 45 in response to the temperature signals fed back by each of the thermocouples, so that the temperature of the incubation chamber 12 is maintained within a preset temperature range. Specifically, when the temperature value represented by the temperature signal fed back by any thermocouple is higher than the preset temperature range, the control element controls the electric heating tube 45 to reduce the heating power. When the temperature value represented by the temperature signal fed back by any thermocouple is lower than the preset temperature range, the control element controls the electric heating tube 45 to increase the heating power.

[0047] It should be understood that commercially available and mature products can be used for the control components, such as PLC controllers, which will not be elaborated on here.

[0048] It should be understood that, in this application, the axial direction of an egg refers to the direction of the line connecting the large and small ends of the egg; the circumferential direction of an egg is determined by the axial direction of the line connecting the large and small ends of the egg.

[0049] It should be understood that, unless otherwise specified, in this application, the terms "rotational connection" and "hinged connection" refer to two things that can only rotate relative to each other and cannot move axially relative to each other. The means of restricting the axial relative movement of the two things are, for example, providing a shoulder and annular groove at the position where the two things are rotated together. The terms "sliding connection" and "insertion" refer to two things that can only move relative to each other. The means of restricting the movement of the two things is only along the relative sliding direction, for example, providing a dovetail and a dovetail groove on each of the two things along the relative sliding direction.

[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An incubation device for aquaculture, characterized in that, include: Incubator (1), incubation tray (2), first egg-turning mechanism and hot air circulation assembly; A transverse partition (11) is provided inside the incubator (1), which divides the incubator (1) into an incubation chamber (12) and a drive chamber (13). The first egg-turning mechanism includes a vertical rod (31), a sliding sleeve (32), and a telescopic assembly. The vertical rod (31) is vertically installed in the incubation chamber (12) and slidably connected to the incubation box (1). The lower end of the vertical rod (31) extends through the transverse partition (11) into the drive chamber (13). The telescopic assembly is installed in the drive chamber (13) and can drive the vertical rod (31) to reciprocate linearly in the vertical direction. The incubation tray (2) is installed in the incubation chamber (12). One end of the incubation tray (2) along the length direction is hinged to the incubation box (1), and the other end is inserted into the sliding sleeve (32). The other end of the sliding sleeve (32) is hinged to the vertical rod (31). The hot air circulation assembly is used to heat the incubation chamber (12).

2. The incubation device for aquaculture according to claim 1, characterized in that, The telescopic assembly includes a screw (33), a screw sleeve (34), a connecting rod (35), and a first motor (36). The screw (33) is horizontally installed in the drive chamber (13) and rotatably connected to the incubator (1). The screw sleeve (34) is screwed onto the screw (33). One end of the connecting rod (35) is hinged to the screw sleeve (34), and the other end is hinged to the lower end of the vertical rod (31). The first motor (36) is a stepper motor. The first motor (36) is installed in the drive chamber (13) and fixedly connected to the incubator (1). The first motor (36) is used to drive the screw (33) to rotate.

3. The incubation device for aquaculture according to claim 2, characterized in that, The screw (33) is a double-ended screw (33), and there are two screw sleeves (34) and two connecting rods (35). The two screw sleeves (34) are located on both sides of the vertical rod (31).

4. The incubation device for aquaculture according to claim 1, characterized in that, The incubation device also includes a second egg-turning mechanism, which includes a shaft (51), a second motor (52), and a rack (53). There are multiple shafts (51), each shaft (51) is rotatably connected to the incubation tray (2) and the axial direction of the shaft (51) is parallel to the length direction of the incubation tray (2). A first gear (54) is fixedly provided on each shaft (51). Each shaft (51) is arranged in an array along the width direction of the incubation box (1) and there is a gap between adjacent shafts (51). The rack (53) is slidably connected to the incubation tray (2) and the length direction of the rack (53) is parallel to the width direction of the incubation tray (2). Each of the first gears (54) meshes with the rack (53). The second motor (52) is a stepper motor. The second motor (52) is fixedly connected to the incubation tray (2). A second gear (55) is fixedly installed on the output shaft of the second motor (52). The second gear (55) meshes with the rack (53).

5. The incubation device for aquaculture according to claim 4, characterized in that, Each of the shafts (51) includes a core (511) and a flexible layer (512), the flexible layer (512) covering the outer peripheral surface of the core (511).

6. The incubation device for aquaculture according to claim 5, characterized in that, The flexible layer (512) is multi-layered, and each flexible layer (512) has the same thickness and is 5mm to 8mm.

7. The incubation device for aquaculture according to claim 1, characterized in that, The hot air circulation assembly includes a fan (41) and a heating unit; An air inlet (14) is provided on the top of the incubator (1), and an air outlet (15) is provided on the horizontal partition (11). The air inlet of the fan (41) is connected to the air outlet (15) through an air inlet pipe (42), and the air outlet of the fan (41) is connected to the air inlet (14) through an air outlet pipe (43). The heating unit is located inside the air outlet pipe (43).

8. The incubation device for aquaculture according to claim 7, characterized in that, There are multiple incubation trays (2), and each incubation tray (2) is arranged in an array along the vertical direction in the incubation chamber (12); The air inlet (14) is located above the incubation tray (2).

9. The incubation device for aquaculture according to claim 7, characterized in that, A four-way valve (44) is connected to the air inlet pipe (42). The four-way valve (44) includes a valve core (445), a first interface (441), a second interface (442), a third interface (443), and a fourth interface (444). The air inlet is connected to the first interface (441), the air outlet (15) is connected to the second interface (442), and the third interface (443) and the fourth interface (444) are both connected to the atmosphere. By rotating the valve core (445), the four-way valve (44) can be switched between a first state and a second state; in the first state, the first port (441) is connected to the second port (442), and the third port (443) and the fourth port (444) are closed; in the second state, the first port (441) is connected to the fourth port (444), and the second port (442) is connected to the third port (443).

10. The incubation device for aquaculture according to claim 7, characterized in that, The heating unit includes an electric heating tube (45) and several heat-conducting fins (46). The electric heating tube (45) is perpendicular to the length direction of the air outlet pipe (43). Each heat-conducting fin (46) is arranged in an array along the length direction of the electric heating tube (45) and is fixedly connected to the electric heating tube (45). There is a gap between two adjacent heat-conducting fins (46).

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