A device and method for expanding the seats of small silkworms

Abstract

The application discloses a small silkworm seat-expanding device, which comprises a base, a fixed rod fixedly connected with the base, one end of a swing rod rotatably connected with the fixed rod, and one end of a supporting plate fixedly connected with the swing rod, wherein the lower side of the supporting plate is fixedly connected with a circle of evenly distributed small silkworm auxiliary diffusion components which are driven to the periphery, the small silkworm auxiliary diffusion components comprise a soft stirring rod, the small silkworm auxiliary diffusion components can drive the stirring rod to move in the process of transmission so as to assist the small silkworm to diffuse to the periphery, and the stirring rod is made of soft material. The application relates to the technical field of small silkworm seat-expanding devices, in particular to a small silkworm seat-expanding device and method, which adopts the soft stirring rod, cooperates with a chain wheel and a chain transmission, can assist the small silkworm to diffuse with light force, avoids the uneven problem of force in traditional manual operation, and greatly reduces the physical damage to the small silkworm.

Description

Technical Field

[0001] This invention relates to the field of silkworm rearing equipment technology, specifically to a silkworm rearing device and method. Background Technology

[0002] In silkworm rearing, young silkworms (especially first, second, and third instar silkworms) tend to cluster together in their trays due to their small size and weak mobility. Traditionally, this requires manual expansion (guiding the silkworms to spread outwards). However, manual operation has several drawbacks: firstly, it's difficult to control the force when manually moving the silkworms, easily causing physical damage and reducing survival rates; secondly, manual expansion is inefficient and struggles to ensure uniform distribution, leading to localized clustering and hindering the silkworms' full utilization of mulberry leaf resources, resulting in uneven growth and development. Therefore, a device is urgently needed to replace manual expansion and provide a low-damage method to assist in the expansion of silkworm trays, thus solving these problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device and method for spreading silkworms, which uses a soft material actuating rod, in conjunction with a sprocket and chain drive, to assist the spreading of silkworms with gentle force, avoiding the problem of uneven force in traditional manual operation, and greatly reducing physical damage to silkworms.

[0004] A method for expanding the base of small silkworms includes a ring of evenly distributed small silkworm auxiliary diffusion components that move outwards. The small silkworm auxiliary diffusion components are connected to the ceiling through elastic connecting parts. The small silkworm auxiliary diffusion components include a lever, which drives the lever to move outwards to achieve the auxiliary diffusion of small silkworms. The process of expanding the silkworm tray by using a silkworm auxiliary diffusion component includes the following steps: Step 1: Prepare and adjust the angle of the silkworm tray expansion device so that the silkworm auxiliary diffusion component is in an operational state and is adjusted to a suitable angle corresponding to the silkworm tray. Step 2: After each feeding of the first instar silkworms, pull down the base. The connecting part will be stretched. Pull the lever of the silkworm auxiliary diffusion component down to a suitable height, so that the lever lightly touches the silkworm. Activate the silkworm auxiliary diffusion component. The silkworm auxiliary diffusion component will drive the lever to move, gently assisting the first instar silkworms to spread to the surrounding mulberry leaf area. Step 3: Before feeding the second instar silkworms and during the feeding process, pull down the base again to move the silkworm auxiliary diffusion component to a suitable height, activate the silkworm auxiliary diffusion component to help the silkworms in the first instar silkworm trays climb to the sand removal net, and use the silkworm expansion device after each feeding of the second instar silkworms to help them spread evenly in the second instar silkworm trays. Step 4: Before and during feeding the third instar silkworms, pull down the base again to move the silkworm auxiliary diffusion component to a suitable height, activate the silkworm auxiliary diffusion component to help the silkworms in the second instar silkworm trays climb to the sand removal net, and use the silkworm expansion device after each feeding of the third instar silkworms to help them spread evenly in the third instar silkworm trays.

[0005] Furthermore, in step 2, the first-instar silkworms are fed mulberry leaves 3-4 times a day at 5-7 am, 10-12 pm, 3-5 pm, and 9-11 pm. After each feeding, the silkworm auxiliary diffusion component is activated, and the lever is turned to spread the silkworms to a range of 2-4 cm around the mulberry leaves. Each activation lasts for 1-2 minutes until the silkworms are evenly distributed.

[0006] Further, step 3 includes step 301: Before feeding the second instar silkworms, after removing the perforated film, sprinkling anti-stiffness powder, covering with a sand-removing net and sprinkling mulberry leaves on the first instar silkworm tray, pull the base 8 down to a suitable height, start the silkworm auxiliary diffusion component to help the silkworms climb to the sand-removing net, and when the second instar silkworms that have climbed to the sand-removing net account for 40-60% of the total number of silkworms, stop the operation and move the sand-removing net to the second instar silkworm tray; Step 302: After covering the remaining silkworms with a new sand-removing net and scattering mulberry leaves, pull the base 8 down to a suitable height, and start the silkworm auxiliary diffusion component again to help the silkworms climb to the sand-removing net. After feeding them mulberry leaves 1-2 times, start the device to distribute the silkworms evenly, and then move the sand-removing net to another second-instar silkworm tray. Step 303: During the second instar period, feed the mulberry leaves 3-4 times a day. After each feeding, fill the tray with mulberry leaves for the second instar silkworms, pull the base 8 down to a suitable height, and start the small silkworm auxiliary diffusion component for 1-2 minutes to help the second instar silkworms spread evenly in the tray.

[0007] Further, step 4 includes step 401: Before feeding the third instar silkworms, after removing the perforated film, sprinkling anti-stiffness powder, covering with a sand-removing net and sprinkling mulberry leaves on the second instar silkworm tray, pull the base 8 down to a suitable height, start the silkworm auxiliary diffusion component to help the silkworms climb to the sand-removing net, and when the third instar silkworms that have climbed to the sand-removing net account for 40-60% of the total number of silkworms, stop the operation and move the sand-removing net to the third instar silkworm tray; Step 402: After covering the remaining silkworms with a new sand-removing net and scattering mulberry leaves, pull the base down to a suitable height, and start the silkworm auxiliary diffusion component again to help the silkworms climb to the sand-removing net. After feeding them mulberry leaves 1-2 times, start the device to distribute the silkworms evenly, and then move the sand-removing net to another third-instar silkworm tray. Step 403: During the third instar period, feed the mulberry leaves 3-4 times a day. After each feeding, fill the trays with mulberry leaves for the third instar silkworms, pull the base down to a suitable height, and activate the silkworm auxiliary diffusion component for 1-2 minutes to help the third instar silkworms spread evenly within the trays. This invention discloses an apparatus for applying a method of spreading silkworms, which also includes a base. The base is fixedly connected to a fixed rod, and the fixed rod is rotatably connected to one end of a swing rod. The swing rod is fixedly connected to one upper end of a support plate, and the lower side of the support plate is fixedly connected to a ring of evenly distributed silkworm auxiliary diffusion components that drive the silkworms to spread to the surroundings. The silkworm auxiliary diffusion components include a lever, which can drive the lever to move during transmission, thereby assisting the silkworms to spread to the surroundings. The lever is made of a soft material.

[0008] Furthermore, the silkworm-assisted diffusion assembly also includes symmetrically arranged upright plates. The lower side of each support plate is fixedly connected to a symmetrical upright plate. Each pair of upright plates is rotatably connected to the central shaft of a set of evenly arranged sprockets. Each set of sprockets is connected by chain drive. The two ends of the actuating rod are fixedly connected to one end of the actuating rod connecting plate, and the other end of each actuating rod connecting plate is fixedly connected to a chain.

[0009] Furthermore, the central shaft of one sprocket in each set is fixedly connected to the output shaft of the motor, and the motor is fixedly connected to the vertical plate.

[0010] Furthermore, the swing arm is connected to an angle adjustment component, which is used to drive the swing arm to swing, thereby causing the support plate and the silkworm-assisted diffusion component to swing to a suitable angle.

[0011] Furthermore, the angle adjustment assembly includes connecting rods, with the other end of each lever rotatably connected to one end of the connecting rod, the upper end of each connecting rod rotatably connected to a connecting rod seat, all connecting rod seats fixedly connected to the arc-shaped surface of the moving block, the moving block being screwed to a screw rod, the upper end of the screw rod being fixedly connected to a knob, the lower end of the screw rod being rotatably connected to the upper center of the base, the upper end of the screw rod being fixedly connected to an elastic rope, and the upper end of the elastic rope being fixedly connected to the ceiling or a fixed bracket.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are: The device is fixed to the ceiling or a fixed frame via a connecting part. After installation, the connecting part hangs down within reach of a person. When in use, the connecting part is pulled to overcome the elasticity and pull down. There is a continuous upward elastic force during use, which prevents the silkworms from being crushed. The soft-material lever, combined with sprockets and chain drives, can gently assist the silkworms in spreading, avoiding the uneven force problem of traditional manual operation and greatly reducing physical damage to the silkworms. At the same time, differentiated operating procedures are designed for the characteristics of silkworms at different instars (such as limiting the spreading range and time for first-instar silkworms), further reducing stress response and improving the survival rate of silkworms. The motor-driven sprocket transmission replaces manual operation, automating the expansion process and reducing manpower input. The closed-loop transmission of sprocket and chain ensures stable movement of the lever. Combined with the trajectory design of "transmission to the surroundings", it makes the silkworms spread more evenly, avoids local clustering, ensures that the silkworms make full use of mulberry leaf resources, and promotes uniform growth and development. The angle adjustment component can adjust the tilt angle of the silkworm auxiliary diffusion component to fit different concave silkworm trays; the elastic rope design makes it easy to quickly adjust the height of the lever to adapt to the changes in the stacking height of mulberry leaves during the growth of silkworms, thus improving the practicality of the device in different breeding environments. A phased operation was designed based on the growth characteristics of first-instar, second-instar, and third-instar silkworms (such as spreading first-instar silkworms after feeding them mulberry leaves, and transferring second-instar and third-instar silkworms in conjunction with sand removal nets), forming a standardized process that not only meets the expansion needs of silkworms of different instars, but also facilitates standardized operation by breeding personnel and improves the overall breeding management level. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 The three-dimensional representation of the present invention Figure 1 ; Figure 2 This is a partial front view of the present invention.

[0014] In the diagram: 1. Elastic rope; 2. Screw; 3. Knob; 4. Moving block; 5. Connecting rod; 6. Support plate; 7. Fixed rod; 8. Base; 9. Motor; 10. Vertical plate; 11. Sprocket; 12. Chain; 13. Flexible actuating rod; 14. Actuating rod connecting plate; 15. Swing rod; 16. Connecting rod seat. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] A silkworm spreading device includes a base 8, a fixed rod 7 fixedly connected to the base 8, one end of a swing rod 15 rotatably connected to the fixed rod 7, the upper end of a support plate 6 fixedly connected to the swing rod 15, and a ring of evenly distributed silkworm auxiliary diffusion components that spread outwards fixedly connected to the lower side of the support plate 6. The silkworm auxiliary diffusion components are connected to the ceiling through a spring-loaded connecting part. The silkworm auxiliary diffusion components include a lever, which can move the lever during transmission to assist the silkworms in spreading outwards. The lever is made of a soft material.

[0017] In this embodiment, the silkworm-assisted diffusion component moves a lever made of soft material, which reduces physical damage to the silkworms by utilizing its softness. At the same time, the component guides the silkworms to spread outwards by transmitting motion to the surroundings, thus solving the problem of silkworms (especially young silkworms) gathering due to their small size and weak mobility. The component achieves uniform diffusion with mechanical assistance, providing sufficient space and mulberry leaf resources for subsequent growth, while avoiding the damage to the silkworms caused by traditional manual spreading.

[0018] The connecting part can be an elastic rope, a spring rope, or a spring assembly. It is fixed to the ceiling or a fixed frame through the connecting part. After the connecting part is installed, it hangs down to a place that people can reach. When in use, the connecting part is pulled to overcome the elastic force to pull it down. There will always be an upward elastic force during use, which can prevent people from crushing the silkworms when using it.

[0019] Furthermore, the silkworm-assisted diffusion assembly also includes symmetrically arranged upright plates 10. The lower side of each support plate 6 is fixedly connected to the symmetrical upright plates 10. Each pair of upright plates 10 is rotatably connected to the central shaft of a set of evenly arranged sprockets 11. Each set of sprockets 11 is connected by a chain 12. The two ends of the actuating rod are fixedly connected to one end of the actuating rod connecting plate 14, and the other end of each actuating rod connecting plate 14 is fixedly connected to the chain 12.

[0020] In this embodiment, the sprocket 11 and the chain 12 form a closed-loop transmission. The actuating rod is fixed to the chain 12 through the connecting plate and moves cyclically with the chain 12, forming a continuous transmission trajectory to the surrounding area. This ensures that the movement of the actuating rod is stable and uniform, and avoids the local accumulation or damage of small silkworms caused by movement jamming. The symmetrically arranged upright plate 10 and sprocket 11 enhance the structural stability and ensure the consistency of the diffusion range.

[0021] Furthermore, the central shaft of one of the sprockets 11 in each group is fixedly connected to the output shaft of the motor 9, and the motor 9 is fixedly connected to the upright plate 10. The motor 9 drives the sprocket 11 to rotate, thereby driving the chain 12 to transmit power and realize the trajectory of the lever to transmit power to the surrounding area.

[0022] Furthermore, the swing arm 15 is connected to an angle adjustment component, which is used to drive the swing arm 15 to swing, thereby driving the support plate 6 and the silkworm auxiliary diffusion component to swing to a suitable angle. By driving the swing arm 15 to rotate around the fixed rod 7 through the angle adjustment component, the tilt angle of the support plate 6 and the silkworm auxiliary diffusion component is changed, so that they match the concave arc-shaped lower side of the silkworm tray.

[0023] Furthermore, the angle adjustment assembly includes a connecting rod 5, with the other end of each swing rod 15 rotatably connected to one end of the connecting rod 5, and the upper end of each connecting rod 5 rotatably connected to a connecting rod seat 16. All connecting rod seats 16 are fixedly connected to the arc-shaped surface of the moving block 4. The moving block 4 is screwed with a screw rod 2, and the upper end of the screw rod 2 is fixedly connected to a knob 3. The lower end of the screw rod 2 is rotatably connected to the upper center of the base 8. The upper end of the screw rod 2 is fixedly connected to an elastic rope 1, and the upper end of the elastic rope 1 is fixedly connected to the ceiling or a fixed bracket.

[0024] In this embodiment, the screw 2 and the moving block 4 are screwed together. Rotating the knob 3 can drive the moving block 4 to move up and down. The moving block 4 drives the swing arm 15 to swing through the connecting rod 5 and the connecting rod seat 16, so as to achieve precise adjustment of the angle. The elastic rope 1 provides an upward pulling force, which not only helps to fix the position of the device, but also makes it convenient to adjust the height of the lever when pulling down the base 8 (the elastic rope 1 stretches when pulled down and can be reset after being released), which is convenient to quickly adapt to the growth height of the silkworm (such as adjusting with the change of the height of the mulberry leaf stack).

[0025] A method of using a small silkworm spreading device includes the following steps: Step 1: Prepare and adjust the angle of the small silkworm spreading device so that the small silkworm auxiliary diffusion component is in an operational state and is adjusted to a suitable angle corresponding to the silkworm tray. Step 2: After each feeding of the first instar silkworms with mulberry leaves, pull down the base 8. The connecting part will be stretched, and the lever of the silkworm auxiliary diffusion component will be pulled down to a suitable height (the lever should lightly touch the silkworm). The silkworm auxiliary diffusion component will be activated, and the lever will be moved by the silkworm auxiliary diffusion component to gently assist the first instar silkworms to spread to the surrounding mulberry leaf area. Step 3: Before feeding the second instar silkworms and during the feeding process, pull down the base 8 again to move the silkworm auxiliary diffusion component to a suitable height, activate the silkworm auxiliary diffusion component to help the silkworms in the first instar silkworm tray climb to the sand removal net, and use the silkworm expansion device to help the second instar silkworms spread evenly in the second instar silkworm tray after each feeding. Step 4: Before and during feeding the third instar silkworms, pull down the base 8 again to move the silkworm auxiliary diffusion component to a suitable height, activate the silkworm auxiliary diffusion component to help the silkworms in the second instar silkworm trays climb to the sand removal net, and use the silkworm expansion device after each feeding of the third instar silkworms to help them spread evenly in the third instar silkworm trays.

[0026] This setup allows for phased operational procedures based on the activity levels, body size, and rearing needs of silkworms at different growth stages (first, second, and third instar). By combining the device's angle adjustment, height adjustment, and auxiliary diffusion functions, targeted expansion of the seating area can be achieved, ensuring that silkworms of different instars receive appropriate diffusion assistance. First-instar silkworms are the smallest and require gentle handling; second- and third-instar silkworms are larger and require transfer with the help of a sand-removing net to avoid clustering and oxygen deprivation or competition for food, ultimately improving the survival rate and uniformity of growth of the silkworms.

[0027] Furthermore, in step 2, the first-instar silkworms are fed mulberry leaves 3-4 times a day at 5-7 am, 10-12 pm, 3-5 pm, and 9-11 pm. After each feeding, the silkworm auxiliary diffusion component is activated. The lever drives the silkworms to spread outwards in a range of 2-4 cm around the mulberry leaves. Each activation lasts for 1-2 minutes until the silkworms are evenly distributed.

[0028] Given the extremely small size and weak resistance of first-instar silkworms, the frequency of feeding mulberry leaves is limited (3-4 times / day), the time (corresponding to the active period of the young silkworms), the range of movement (2-4 cm, to avoid excessive movement), and the duration (1-2 minutes, to reduce interference). Through precise parameter control, gentle assistance is achieved. This setting avoids excessive handling that could cause stress or damage to the first-instar silkworms, while ensuring that the young silkworms can spread evenly to the new mulberry leaf area, laying the foundation for subsequent growth. The fixed feeding time, combined with the expansion of the rearing area, forms a breeding rhythm and improves management efficiency.

[0029] Further, step 3 includes step 301: Before feeding the second instar silkworms, after removing the perforated film, sprinkling anti-stiffness powder, covering with a sand-removing net and sprinkling mulberry leaves on the first instar silkworm tray, pull the base 8 down to a suitable height, start the small silkworm auxiliary diffusion component to help the small silkworms climb to the sand-removing net, and when the second instar silkworms that have climbed to the sand-removing net account for 40-60% of the total number of silkworms, stop the operation and move the sand-removing net to the second instar silkworm tray; Step 302: After covering the remaining silkworms with a new sand-removing net and sprinkling mulberry leaves, pull the base 8 down to a suitable height, and restart the silkworm auxiliary diffusion component to help the silkworms climb to the sand-removing net. After feeding them mulberry leaves 1-2 times, start the device to distribute the silkworms evenly, and then move the sand-removing net to another second-instar silkworm tray. Step 303: During the second instar period, feed the mulberry leaves 3-4 times a day. After each feeding, fill the tray with mulberry leaves for the second instar silkworms, pull the base 8 down to a suitable height, and start the small silkworm auxiliary diffusion component for 1-2 minutes to help the second instar silkworms spread evenly in the tray.

[0030] Second-instar silkworms need to be transferred from first-instar trays to larger second-instar trays. A combination of methods, including sand-removing nets, mulberry leaf attraction, and assisted manipulation, should be used to transfer the silkworms in batches (40-60% each time) to avoid excessive pressure during a single transfer. Repeated spreading operations should be performed during the feeding process to ensure even distribution after transfer, achieving a smooth transition from first to second instar silkworms and reducing losses during the transfer process. Batch transfer combined with even spreading avoids growth differences in second-instar silkworms due to insufficient space, while also reducing the labor intensity of manual transfer.

[0031] Further, step 4 includes step 401: Before feeding the third instar silkworms, after lifting the perforated film, sprinkling anti-stiffness powder, covering with a sand-removing net and sprinkling mulberry leaves on the second instar silkworm tray, pull the base 8 down to a suitable height, start the small silkworm auxiliary diffusion component, and assist the small silkworms to climb to the sand-removing net. When the third instar silkworms that have climbed to the sand-removing net account for 40-60% of the total number of silkworms, stop the operation and move the sand-removing net to the third instar silkworm tray. Step 402: After covering the remaining silkworms with a new sand-removing net and sprinkling mulberry leaves, pull the base 8 down to a suitable height, and restart the silkworm auxiliary diffusion component to help the silkworms climb to the sand-removing net. After feeding them mulberry leaves 1-2 times, start the device to distribute the silkworms evenly, and then move the sand-removing net to another third-instar silkworm tray. Step 403: During the third instar period, feed the mulberry leaves 3-4 times a day. After each feeding, fill the tray with the third instar silkworms, pull the base 8 down to a suitable height, and start the small silkworm auxiliary diffusion component for 1-2 minutes to help the third instar silkworms spread evenly in the tray.

[0032] Referring to the transfer and dispersal logic of second-instar silkworms, and considering the larger size and increased food intake of third-instar silkworms, a sand-removing net transfer and continuous dispersal assistance method is used to ensure that they are evenly distributed in larger third-instar silkworm trays, making full use of mulberry leaf resources, adapting to the growth needs of third-instar silkworms, and avoiding problems such as uneven distribution of mulberry leaves and accumulation of excrement caused by aggregation. Echoing the second-instar operation process, a standardized cross-instar breeding assistance program is formed to improve overall breeding efficiency.

[0033] In use, turn knob 3 to drive moving block 4 up and down via screw 2. Moving block 4 drives connecting rod 5 and swing rod 15 to swing, adjusting support plate 6 and silkworm auxiliary diffusion component to a suitable angle corresponding to the silkworm tray (such as matching the concave arc lower side of the silkworm tray). After each feeding of first-instar silkworms (3-4 times a day, at 5-7 am, 10-12 pm, 3-5 pm, and 9-11 pm), pull down base 8 to stretch elastic rope 1, causing the lever to move down to a suitable height (just enough to slightly touch the silkworms); start motor 9, which drives lever to move through sprocket 11 and chain 12 to assist the first-instar silkworms in spreading to the surrounding mulberry leaf area (spreading range 2-4 cm), each time for 1-2 minutes, until the silkworms are evenly distributed; Then, the second-instar silkworms are expanded and transferred: Before feeding the second instar silkworms, remove the perforated film from the tray used for the first instar silkworms, sprinkle anti-stiffness powder, cover with a sand-removing net and sprinkle mulberry leaves; pull down base 8 to move the lever down, start the device to help the small silkworms climb to the sand-removing net, and when the small silkworms on the sand-removing net account for 40-60% of the total number of silkworms, stop the operation and move the sand-removing net to the tray used for the second instar silkworms; Cover the remaining silkworms with a new sand-removing net and sprinkle mulberry leaves. Pull down the base 8 to activate the device again to help the silkworms crawl to the new sand-removing net. After feeding them mulberry leaves 1-2 times, activate the device to distribute the silkworms evenly. Then move the sand-removing net to another second-instar silkworm tray. During the second instar period, feed the silkworms 3-4 times a day (each time covering the entire silkworm tray), then pull down base 8 to start the device and run it for 1-2 minutes to help the second instar silkworms spread evenly. Then, the third instar silkworms are expanded and transferred: Before feeding the third instar silkworms, remove the perforated film from the second instar silkworm tray, sprinkle anti-stiffness powder, cover with a sand-removing net and sprinkle mulberry leaves; pull down base 8 to move the lever down, start the device to help the silkworms climb to the sand-removing net, and when the silkworms on the sand-removing net account for 40-60% of the total number of silkworms, stop the operation and move the sand-removing net to the third instar silkworm tray. Cover the remaining silkworms with a new sand-removing net and sprinkle mulberry leaves. Pull down the base 8 to activate the device again to help the silkworms crawl to the new sand-removing net. After feeding them mulberry leaves 1-2 times, activate the device to distribute the silkworms evenly. Then move the sand-removing net to another third-instar silkworm tray. During the third instar silkworm stage, feed the silkworms 3-4 times a day (each time covering the entire silkworm tray), then pull down base 8 to start the device and run it for 1-2 minutes to help the third instar silkworms spread evenly.

[0034] The above-disclosed embodiments are merely specific examples of the present invention. However, the present invention is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A method for expanding the base of small silkworms, characterized in that, It includes a ring of evenly distributed silkworm auxiliary diffusion components that move outwards. The silkworm auxiliary diffusion components are connected to the ceiling through elastic connecting parts. The silkworm auxiliary diffusion components include a lever, which drives the silkworm to move outwards to achieve auxiliary diffusion of silkworms. The process of expanding the silkworm tray by using a silkworm auxiliary diffusion component includes the following steps: Step 1: Prepare and adjust the angle of the silkworm tray expansion device so that the silkworm auxiliary diffusion component is in an operational state and is adjusted to a suitable angle corresponding to the silkworm tray. Step 2: After each feeding of mulberry leaves to the first instar silkworms, pull down the base (8), the connecting part is stretched, and the lever of the silkworm auxiliary diffusion component is pulled down to a suitable height. The silkworm auxiliary diffusion component is activated, and the lever is moved by the silkworm auxiliary diffusion component to gently assist the first instar silkworms to spread to the surrounding mulberry leaf extension area. Step 3: Before feeding the second instar silkworms and during the feeding process, pull down the base (8) again to move the silkworm auxiliary diffusion component down to a suitable height, activate the silkworm auxiliary diffusion component to help the silkworms in the first instar silkworm trays climb to the sand removal net, and use the silkworm expansion device to help the second instar silkworms spread evenly in the second instar silkworm trays after each feeding. Step 4: Before feeding the third instar silkworms and during the feeding process, pull down the base (8) again to move the silkworm auxiliary diffusion component down to a suitable height, activate the silkworm auxiliary diffusion component to help the silkworms in the second instar silkworm trays climb to the sand removal net, and use the silkworm expansion device to help the third instar silkworms spread evenly in the third instar silkworm trays after each feeding. It also includes a base (8), which is fixedly connected to a fixing rod (7). The fixing rod (7) is rotatably connected to one end of a swing rod (15). The swing rod (15) is fixedly connected to one end of the upper side of a support plate (6). The lower side of the support plate (6) is fixedly connected to a ring of evenly distributed silkworm auxiliary diffusion components that drive the silkworm to spread to the surroundings. The silkworm auxiliary diffusion components include a lever. The silkworm auxiliary diffusion components can drive the lever to move during the transmission process, thereby assisting the silkworm to spread to the surroundings. The lever is made of soft material. It also includes symmetrically arranged upright plates (10), with symmetrical upright plates (10) fixedly connected to the lower side of each support plate (6), and each pair of upright plates (10) rotatably connected to the central shaft of a set of evenly arranged sprockets (11). Each set of sprockets (11) is connected by a chain (12) for transmission. The two ends of the lever are fixedly connected to one end of the lever connecting plate (14), and the other end of each lever connecting plate (14) is fixedly connected to the chain (12).

2. The method for expanding the base of small silkworms according to claim 1, characterized in that, In step 2, the first-instar silkworms are fed mulberry leaves 3-4 times a day at 5-7 am, 10-12 pm, 3-5 pm, and 9-11 pm. After each feeding, the silkworm auxiliary diffusion component is activated. The lever is turned to spread the silkworms to a range of 2-4 cm around the mulberry leaves. Each activation lasts for 1-2 minutes until the silkworms are evenly distributed.

3. The method for expanding the base of small silkworms according to claim 2, characterized in that, Step 3 includes: Step 301: Before feeding the second instar silkworms, peel off the perforated film, sprinkle anti-stiffness powder, cover with sand removal net and sprinkle mulberry leaves on the first instar silkworm tray, pull the base (8) down to a suitable height, start the small silkworm auxiliary diffusion component to help the small silkworms climb to the sand removal net, and when the second instar silkworms that have climbed to the sand removal net account for 40-60% of the total number of silkworms, stop the operation and move the sand removal net to the second instar silkworm tray; Step 302: After covering the remaining silkworms with a new sand-removing net and sprinkling mulberry leaves, pull the base (8) down to a suitable height, start the silkworm auxiliary diffusion component again to help the silkworms climb to the sand-removing net, feed them mulberry leaves 1-2 times, start the device to distribute the silkworms evenly, and then move the sand-removing net to another second-instar silkworm tray. Step 303: During the second instar period, feed the mulberry leaves 3-4 times a day. After each feeding, fill the tray with the second instar silkworms and pull the base (8) down to a suitable height. Start the small silkworm auxiliary diffusion component for 1-2 minutes to help the second instar silkworms spread evenly in the tray.

4. The method for expanding the base of small silkworms according to claim 3, characterized in that, Step 4 includes: Step 401: Before feeding the third instar silkworms, lift the perforated film, sprinkle anti-stiffness powder, cover with sand removal net and sprinkle mulberry leaves on the second instar silkworm tray, pull the base (8) down to a suitable height, start the small silkworm auxiliary diffusion component to help the small silkworms climb to the sand removal net, and when the third instar silkworms that have climbed to the sand removal net account for 40-60% of the total number of silkworms, stop the operation and move the sand removal net to the third instar silkworm tray; Step 402: After covering the remaining silkworms with a new sand-removing net and sprinkling mulberry leaves, pull the base (8) down to a suitable height, start the silkworm auxiliary diffusion component again to help the silkworms climb to the sand-removing net, feed them mulberry leaves 1-2 times, then start the device to distribute the silkworms evenly, and then move the sand-removing net to another third-instar silkworm tray. Step 403: During the third instar period, feed the mulberry leaves 3-4 times a day. After each feeding, fill the tray with the third instar silkworms and pull the base (8) down to a suitable height. Start the small silkworm auxiliary diffusion component for 1-2 minutes to help the third instar silkworms spread evenly in the tray.

5. The method for expanding the base of small silkworms according to claim 1, characterized in that, The central shaft of one of the sprockets (11) in each group is fixedly connected to the output shaft of the motor (9), and the motor (9) is fixedly connected to the vertical plate (10).

6. The method for expanding the base of small silkworms according to claim 5, characterized in that, The swing arm (15) is connected to the angle adjustment component, which is used to drive the swing arm (15) to swing, thereby driving the support plate (6) and the silkworm auxiliary diffusion component to swing to a suitable angle.

7. The method for expanding the silkworm rearing area according to claim 6, characterized in that, The angle adjustment assembly includes a connecting rod (5), the other end of each swing rod (15) is rotatably connected to one end of the connecting rod (5), the upper end of each connecting rod (5) is rotatably connected to the connecting rod seat (16), all connecting rod seats (16) are fixedly connected to the arc surface of the moving block (4), the moving block (4) is screwed to the screw rod (2), the upper end of the screw rod (2) is fixedly connected to the knob (3), the lower end of the screw rod (2) is rotatably connected to the upper center of the base (8), the upper end of the screw rod (2) is fixedly connected to the elastic rope (1), and the upper end of the elastic rope (1) is fixedly connected to the ceiling or fixed bracket.

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