Ultrasonic-based contact sterilization device and method for inactivating crop seed pathogens

Abstract

This invention discloses a contact sterilization device and method for inactivating crop seed pathogens using ultrasonic waves, belonging to the field of seed treatment technology. It includes: a frame, an ultrasonic treatment device, a discharge port opening and closing device, and a controller. A hopper is installed at the top of the frame; the discharge port opening and closing device is installed inside the frame; a motor is installed on the outer wall of the frame, with one end of a first rotating shaft connected to the motor and a first toothed gear installed at the other end of the first rotating shaft; one end of an ultrasonic contact plate is installed on a second rotating shaft, and a first gear is installed at one end of the second rotating shaft, meshing with the first toothed gear; an arc-shaped rod is installed at the bottom of the ultrasonic contact plate; a spring limiting plate is installed inside the frame, the arc-shaped rod passes through the spring limiting plate, and a first spring is sleeved on the arc-shaped rod; the controller is installed inside the frame, and both the motor and the ultrasonic source are electrically connected to the controller. This invention provides thorough contact ultrasonic sterilization of seeds falling onto the ultrasonic contact plate, improving the seed sterilization effect.

Description

Technical Field

[0001] This invention belongs to the field of seed treatment technology, and particularly relates to a contact sterilization treatment device and method for inactivating crop seed pathogens based on ultrasonic waves. Background Technology

[0002] Ultrasound is a sound wave with a frequency higher than that of the human ear. Specifically, the frequency of ultrasound is usually above 20 kilohertz (kHz) and up to several gigahertz (GHz). When this high-frequency sound wave propagates through a medium, it can produce a series of unique physical and chemical reactions, and therefore it is widely used in many fields, such as medical diagnosis, industrial inspection, cleaning, welding, and seed treatment in agriculture.

[0003] Because seeds can carry various types of fungi, their viability declines during storage. Mold on the seeds can even cause mold growth, severely impacting seed activity and germination rate. Since ultrasonic frequencies can sterilize seeds, there is an urgent need for those skilled in the art to develop a device capable of contact sterilization of seeds based on ultrasonic waves. Summary of the Invention

[0004] In view of this, the present invention provides a contact sterilization treatment device and method for inactivating crop seed pathogens based on ultrasonic waves, in order to solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ultrasonic-based contact sterilization device for inactivating crop seed pathogens includes: a frame, an ultrasonic treatment device, a discharge port opening and closing device, and a controller. A hopper is located at the top of the frame, and a discharge port is located on one side of the bottom of the hopper. The discharge port opening and closing device is installed inside the top of the frame, outside the discharge port. The ultrasonic treatment device includes an ultrasonic source, an ultrasonic contact plate, a first rotating shaft, a second rotating shaft, a motor, a first toothed gear, a first gear, an arc-shaped rod, and a first spring. Both ends of the first and second rotating shafts are rotatably connected to two opposing inner walls of the frame, with the first rotating shaft located above the second rotating shaft. The motor is installed on the outer wall of the frame, and one end of the first rotating shaft is fixedly connected to the motor. The first toothed gear is installed on the first rotating shaft. At the other end, located outside the frame opposite to the direction of the motor; one end of the ultrasonic contact plate is fixedly mounted on the second rotating shaft, and the first gear is fixedly mounted on one end of the second rotating shaft, located outside the frame, with the first toothed gear meshing with the first gear; the arc-shaped rod is fixedly mounted on the bottom end of the ultrasonic contact plate, away from the second rotating shaft, with the center of the arc-shaped rod located on the axis of the second rotating shaft; a spring limiting plate is provided inside the frame, the arc-shaped rod passes through the spring limiting plate, the first spring is sleeved on the arc-shaped rod, one end of the first spring is fixedly connected to the ultrasonic contact plate, and the other end is fixedly connected to the spring limiting plate; the controller is installed on the inner top wall of the frame, and both the motor and the ultrasonic source are electrically connected to the controller.

[0007] Furthermore, a limiting rod is provided inside the frame, the limiting rod being located above the ultrasonic contact plate and away from the second rotating shaft; the limiting rod abuts against the upper surface of the ultrasonic contact plate to keep the ultrasonic contact plate horizontal.

[0008] Furthermore, the discharge port opening and closing device includes a discharge port opening and closing bracket, a second spring, a guide tube, and a driving device. Multiple guide rods are provided on the inner top wall of the frame. Multiple second springs are respectively sleeved on the multiple guide rods. The top end of the second spring is fixedly connected to the inner top wall of the frame, and the bottom end is fixedly connected to the upper surface of the discharge port opening and closing bracket. Multiple guide tubes are fixedly installed on the lower surface of the discharge port opening and closing bracket. The number of guide rods is the same as the number of guide tubes. The guide rods pass through the discharge port opening and closing bracket and extend into the guide tubes, where they are slidably connected. The driving device is installed inside the frame and is drively connected to one side of the discharge port opening and closing bracket. The other side of the discharge port opening and closing bracket is slidably connected to the side wall of the hopper. The driving device drives the discharge port opening and closing bracket to move vertically, thereby opening and closing the discharge port.

[0009] Furthermore, the driving device includes a second toothed gear and a rack. The second toothed gear is fixedly mounted on the first rotating shaft, and the rack is fixedly mounted on the side wall of the material discharge port opening and closing bracket. The second toothed gear meshes with the rack.

[0010] Furthermore, a vibrating motor is provided on the bottom wall of the hopper, and the vibrating motor is electrically connected to the controller.

[0011] Furthermore, a discharge funnel is provided on the frame, and the discharge funnel is located below the limiting rod; the other end of the discharge funnel extends out of the frame.

[0012] Furthermore, the bottom of the frame is equipped with multiple casters.

[0013] The ultrasonic-based contact sterilization method for inactivating crop seed pathogens includes the following steps:

[0014] S1. Screen the seeds to be processed and remove impurities;

[0015] S2. Based on the type of seed to be treated and the expected treatment effect, the controller adjusts the working parameters of the ultrasonic source to generate corresponding ultrasonic waves.

[0016] S3. Place the seeds into the hopper, turn on the motor of the through-hole controller, the motor drives the first rotating shaft to rotate, which in turn drives the second toothed gear inside the frame to rotate. The toothed part of the second toothed gear meshes with the rack, which drives the second spring at the top of the discharge port opening and closing bracket to move upward. The seeds fall through the discharge port onto the ultrasonic contact plate, where they are fully sterilized by ultrasound. Until the toothed part of the first toothed gear rotates to mesh with the first gear, it drives the second rotating shaft to rotate, causing the other end of the ultrasonic contact plate to compress the first spring and tilt, thus discharging the treated seeds through the discharge funnel.

[0017] The beneficial effects of this invention are as follows:

[0018] The invention utilizes a motor to drive a first rotating shaft. This rotation of the first rotating shaft can both drive the vertical movement of the discharge port opening and closing bracket through the meshing of the second toothed gear and the rack, thus opening and closing the discharge port; and also drive the second rotating shaft through the meshing of the first toothed gear and the first gear, pouring the ultrasonically treated seeds into the discharge funnel. The seeds fall from the discharge port onto a horizontal ultrasonic contact plate, directly contacting it and undergoing contact-type ultrasonic sterilization under the action of ultrasound, thereby improving the sterilization effect of the seeds. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a front view of a contact sterilization treatment device for inactivating crop seed pathogens based on ultrasonic waves.

[0021] Figure 2 This is an internal structural view of a contact sterilization treatment device for inactivating crop seed pathogens based on ultrasonic waves.

[0022] Figure 3 This is a top view of a contact sterilization treatment device for inactivating crop seed pathogens based on ultrasonic waves.

[0023] Figure 4 for Figure 2 A magnified view of part A in the image.

[0024] In the figure:

[0025] 10-Frame, 11-Hopper, 12-Discharge port, 13-Limiting rod, 14-Spring limiting plate, 15-Guide rod, 21-Ultrasonic source, 22-Ultrasonic contact plate, 23-First rotating shaft, 24-Second rotating shaft, 25-Motor, 26-First toothed gear, 27-First gear, 28-Arc rod, 29-First spring, 31-Discharge port opening and closing bracket, 32-Second spring, 33-Guide tube, 34-Second toothed gear, 35-Rack, 40-Controller, 41-Switch, 50-Vibrator motor, 60-Discharge funnel, 70-Universal wheel, 80-Power supply device. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] See attached document Figure 1-4This invention provides a contact sterilization treatment device for inactivating crop seed pathogens based on ultrasonic waves, comprising: a frame 10, an ultrasonic treatment device, a discharge port opening and closing device, and a controller 40. A hopper 11 is provided at the top of the frame 10, and a discharge port 12 is provided on one side of the bottom of the hopper 11. The discharge port opening and closing device is installed inside the top of the frame 10, located outside the discharge port 12. The ultrasonic treatment device includes an ultrasonic source 21, an ultrasonic contact plate 22, a first rotating shaft 23, a second rotating shaft 24, a motor 25, a first toothed gear 26, a first gear 27, an arc-shaped rod 28, and a first spring 29. Both ends of the first rotating shaft 23 and the second rotating shaft 24 are rotatably connected to two opposing inner walls of the frame 10, with the first rotating shaft 23 located above the second rotating shaft 24. The motor 25 is installed on the outer wall of the frame 10, one end of the first rotating shaft 23 is fixedly connected to the motor 25, and the first toothed gear 26 is installed at the other end of the first rotating shaft 23, located opposite the motor 25. The frame 10 is located outside in opposite directions; one end of the ultrasonic contact plate 22 is fixedly mounted on the second rotating shaft 24, and the first gear 27 is fixedly mounted on one end of the second rotating shaft 24, located outside the frame 10. The first toothed gear 26 meshes with the first gear 27; the arc-shaped rod 28 is fixedly mounted on the bottom end of the ultrasonic contact plate 22, away from the second rotating shaft 24, and the center of the arc-shaped rod 28 is located on the axis of the second rotating shaft 24; a spring limiting plate 14 is provided inside the frame 10, the arc-shaped rod 28 passes through the spring limiting plate 14, and the first spring 29 is sleeved on the arc-shaped rod 28. One end of the first spring 29 is fixedly connected to the ultrasonic contact plate 22, and the other end is fixedly connected to the spring limiting plate 14; the controller 40 is installed on the inner top wall of the frame 10, and the controller 40 is also provided with multiple switches 41, which control the opening and closing of the motor 25, the vibrator motor 50 and the ultrasonic source 21 respectively; a power supply device 80 is also provided on the bottom wall of the frame 10 to supply power to the entire device.

[0029] A limiting rod 13 is provided inside the frame 10. The limiting rod 13 is located above the ultrasonic contact plate 22 and away from the second rotating shaft 24. After the toothed part of the first toothed gear 26 disengages from the first gear 27, the ultrasonic contact plate 22 is reset under the action of the first spring 29, so that the ultrasonic contact plate 22 rotates around the axis of the second rotating shaft 24 until the limiting rod 13 abuts against the upper surface of the ultrasonic contact plate 22. This is used to keep the ultrasonic contact plate 22 horizontal, so that the seeds fall from the hopper 11 onto the ultrasonic contact plate 22 and spread out, so that the seeds do not pile up to one side due to the tilt of the ultrasonic contact plate 22, which would affect the ultrasonic sterilization effect.

[0030] The discharge port opening and closing device includes a discharge port opening and closing bracket 31, a second spring 32, a guide tube 33, and a driving device. Multiple guide rods 15 are provided on the inner top wall of the frame 10. Multiple second springs 32 are respectively sleeved on the multiple guide rods 15. The top end of the second spring 32 is fixedly connected to the inner top wall of the frame 10, and the bottom end is fixedly connected to the upper surface of the discharge port opening and closing bracket 31. Multiple guide tubes 33 are fixedly installed on the lower surface of the discharge port opening and closing bracket 31. The number of guide rods 15 is the same as the number of guide tubes 33. The guide rods 15 pass through the discharge port opening and closing bracket 31 and extend into the guide tubes 33, where they are slidably connected. The driving device is installed inside the frame 10 and is connected to one side of the discharge port opening and closing bracket 31. The other side of the discharge port opening and closing bracket 31 is slidably connected to the side wall of the hopper 11. The driving device drives the discharge port opening and closing bracket 31 to move vertically, thereby opening and closing the discharge port 12.

[0031] In a preferred embodiment, the driving device includes a second toothed gear 34 and a rack 35. The second toothed gear 34 is fixedly mounted on the first rotating shaft 23, and the rack 35 is fixedly mounted on the side wall of the discharge port opening and closing bracket 31. The second toothed gear 34 meshes with the rack 35. This allows the ultrasonic treatment device and the discharge port opening and closing device to operate sequentially using a single motor 25, simplifying the device structure and increasing transmission efficiency. The motor 25 drives the first rotating shaft 23 to rotate, which in turn drives the discharge port opening and closing bracket 31 to move vertically through the meshing of the second toothed gear 34 and the rack 35, thus opening and closing the discharge port 12. The motor 25 also drives the first rotating shaft 23 to rotate, which in turn drives the second rotating shaft 24 through the meshing of the first toothed gear 26 and the first gear 27, pouring the ultrasonically treated seeds into the discharge funnel 60.

[0032] In a preferred embodiment, a vibrating motor 50 is provided on the bottom wall of the hopper 11. The vibrating motor 50 is electrically connected to the controller 40. The vibrating motor 50 enables the seeds to pass through the discharge port 12 more evenly, so that they do not accumulate at the discharge port 12 and fail to discharge.

[0033] In a preferred embodiment, a discharge hopper 60 is provided on the frame 10, and the discharge hopper 60 is located below the limiting rod 13; the other end of the discharge hopper 60 extends out of the frame 10.

[0034] In a preferred embodiment, the bottom of the frame 10 is provided with a plurality of casters 70 to facilitate the movement of the entire device.

[0035] Example 2

[0036] The ultrasonic-based contact sterilization method for inactivating crop seed pathogens includes the following steps:

[0037] S1. Screen the seeds to be processed and remove impurities;

[0038] S2. Based on the type of seed to be treated and the expected treatment effect, the controller 40 adjusts the working parameters of the ultrasonic source 21 so that the ultrasonic source 21 generates corresponding ultrasonic waves.

[0039] S3. Place the seeds into the hopper 11. The through-hole controller 40 turns on the motor 25. The motor 25 drives the first rotating shaft 23 to rotate, which in turn drives the second toothed gear 34 inside the frame 10 to rotate. The toothed part of the second toothed gear 34 meshes with the rack 35, which drives the discharge port opening and closing bracket 31 to compress the second spring 32 at the top and move it upward. The seeds fall through the discharge port 12 onto the ultrasonic contact plate 22. The seeds are fully sterilized by ultrasound on the ultrasonic contact plate 22. Until the toothed part of the first toothed gear 26 rotates to mesh with the first gear 27, it drives the second rotating shaft 24 to rotate, which causes the other end of the ultrasonic contact plate 22 to compress the first spring 29 and rotate, tilting it. The treated seeds are then discharged through the discharge funnel 60.

[0040] The above descriptions are merely specific embodiments of the present invention, and common knowledge regarding the specific structures and characteristics of the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contact sterilization treatment device for inactivating crop seed pathogens based on ultrasonic waves, characterized in that, include: The machine frame (10), ultrasonic processing device, material discharge port opening and closing device and controller (40). The top of the frame (10) is provided with a hopper (11), and a discharge port (12) is provided on one side of the bottom end of the hopper (11). The material discharge port opening and closing device is installed at the top inside of the frame (10), located outside the material discharge port (12); The ultrasonic processing device includes an ultrasonic source (21), an ultrasonic contact plate (22), a first rotating shaft (23), a second rotating shaft (24), a motor (25), a first toothed gear (26), a first gear (27), an arc rod (28), and a first spring (29). Both ends of the first rotating shaft (23) and the second rotating shaft (24) are rotatably connected to the two opposing inner walls of the frame (10), with the first rotating shaft (23) located above the second rotating shaft (24); The motor (25) is mounted on the outer side wall of the frame (10), one end of the first rotating shaft (23) is fixedly connected to the motor (25), and the first toothed gear (26) is mounted on the other end of the first rotating shaft (23), located outside the frame (10) opposite to the direction of the motor (25); One end of the ultrasonic contact plate (22) is fixedly mounted on the second rotating shaft (24), and the first gear (27) is fixedly mounted on one end of the second rotating shaft (24), located outside the frame (10). The first toothed gear (26) meshes with the first gear (27). The arc-shaped rod (28) is fixedly installed at the bottom end of the ultrasonic contact plate (22), on the side away from the second rotating shaft (24), and the center of the arc-shaped rod (28) is located on the axis of the second rotating shaft (24); The frame (10) is provided with a spring limiting plate (14), the arc rod (28) passes through the spring limiting plate (14), the first spring (29) is sleeved on the arc rod (28), one end of the first spring (29) is fixedly connected to the ultrasonic contact plate (22), and the other end is fixedly connected to the spring limiting plate (14). The controller (40) is installed on the inner top wall of the frame (10), and the motor (25) and the ultrasonic source (21) are both electrically connected to the controller (40); The frame (10) is provided with a limiting rod (13) inside. The limiting rod (13) is located above the ultrasonic contact plate (22) and away from the second rotating shaft (24). The limiting rod (13) abuts against the upper surface of the ultrasonic contact plate (22) to keep the ultrasonic contact plate (22) horizontal.

2. The ultrasonic-based contact sterilization device for inactivating crop seed pathogens according to claim 1, characterized in that, The material discharge port opening and closing device includes a material discharge port opening and closing bracket (31), a second spring (32), a guide tube (33), and a driving device; The inner top wall of the frame (10) is provided with a plurality of guide rods (15), and a plurality of second springs (32) are respectively sleeved on the plurality of guide rods (15). The top end of the second spring (32) is fixedly connected to the inner top wall of the frame (10), and the bottom end is fixedly connected to the upper surface of the discharge port opening and closing bracket (31). Multiple guide tubes (33) are fixedly installed on the lower surface of the discharge port opening and closing bracket (31). The number of guide rods (15) is the same as that of guide tubes (33). The guide rods (15) pass through the discharge port opening and closing bracket (31), extend into the guide tubes (33), and are slidably connected with the guide tubes (33). The drive device is installed inside the frame (10). The drive device is connected to one side of the discharge port opening and closing bracket (31). The other side of the discharge port opening and closing bracket (31) is slidably connected to the side wall of the hopper (11). The drive device drives the discharge port opening and closing bracket (31) to move vertically to open and close the discharge port (12).

3. The ultrasonic-based contact sterilization device for inactivating crop seed pathogens according to claim 2, characterized in that, The drive device includes a second toothed gear (34) and a rack (35). The second toothed gear (34) is fixedly mounted on the first rotating shaft (23), and the rack (35) is fixedly mounted on the side wall of the discharge port opening and closing bracket (31). The second toothed gear (34) meshes with the rack (35).

4. The ultrasonic-based contact sterilization device for inactivating crop seed pathogens according to claim 1, characterized in that, The bottom wall of the hopper (11) is provided with a vibrating motor (50), which is electrically connected to the controller (40).

5. The ultrasonic-based contact sterilization device for inactivating crop seed pathogens according to claim 3, characterized in that, A discharge hopper (60) is provided on the frame (10), and the discharge hopper (60) is located below the limiting rod (13); the other end of the discharge hopper (60) extends out of the frame (10).

6. The ultrasonic-based contact sterilization device for inactivating crop seed pathogens according to claim 1, characterized in that, The bottom of the frame (10) is provided with multiple casters (70).

7. A method for contact sterilization of crop seed pathogens based on ultrasonic inactivation, using the contact sterilization device for contact sterilization of crop seed pathogens based on ultrasonic inactivation as described in claim 5, characterized in that, Includes the following steps: S1. Screen the seeds to be processed and remove impurities; S2. Based on the type of seed to be treated and the expected treatment effect, the working parameters of the ultrasonic source (21) are adjusted by the controller (40) so that the ultrasonic source (21) generates corresponding ultrasonic waves. S3. Place the seeds into the hopper (11), turn on the motor (25) through the controller (40), the motor (25) drives the first rotating shaft (23) to rotate, which drives the second toothed gear (34) inside the frame (10) to rotate. The toothed part of the second toothed gear (34) meshes with the rack (35), which drives the discharge port opening and closing bracket (31) to compress the second spring (32) at the top and move upward. The seeds fall through the discharge port (12) onto the ultrasonic contact plate (22). The seeds are fully sterilized by ultrasonic waves on the ultrasonic contact plate (22). Until the toothed part of the first toothed gear (26) rotates to mesh with the first gear (27), it drives the second rotating shaft (24) to rotate, which causes the other end of the ultrasonic contact plate (22) to compress the first spring (29) and rotate and tilt, so that the treated seeds are discharged through the discharge funnel (60).

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