Contact type sterilization treatment device and treatment method based on ultrasonic inactivation of crop seed pathogenic bacteria

Abstract

The invention discloses a contact type sterilization treatment device and method based on ultrasonic wave inactivation of crop seed pathogenic bacteria, and belongs to the technical field of seed treatment.The contact type sterilization treatment device comprises a rack, an ultrasonic treatment device, a discharging port opening and closing device and a controller, and a hopper is arranged at the top end of the rack; the blanking port opening and closing device is mounted in the rack; the motor is installed on the outer side wall of the rack, one end of the first rotating shaft is connected with the motor, and the first tooth-missing gear is installed at the other end of the first rotating shaft. One end of the ultrasonic contact plate is mounted on the second rotating shaft, the first gear is mounted at one end of the second rotating shaft, and the first tooth-missing gear is meshed with the first gear; the arc-shaped rod is mounted at the bottom end of the ultrasonic contact plate; a spring limiting plate is arranged in the rack, the arc-shaped rod penetrates through the spring limiting plate, and the arc-shaped rod is sleeved with the first spring; the controller is installed in the rack, and the motor and the ultrasonic source are both electrically connected with the controller. According to the device, the seeds falling onto the ultrasonic contact plate are subjected to full contact type ultrasonic sterilization, and the seed sterilization effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of seed treatment, and in particular relates to a contact sterilization treatment device and a treatment method for inactivating pathogenic bacteria in crop seeds based on ultrasonic waves. Background Art

[0002] Ultrasound is a type of sound wave with a frequency higher than the human ear can hear. Specifically, ultrasound frequencies typically range from 20 kilohertz (Khz) to several gigahertz (GHz). These high-frequency sound waves, when propagated through a medium, can produce a series of unique physical and chemical reactions. Consequently, they are widely used in various fields, such as medical diagnosis, industrial testing, cleaning, welding, and agricultural seed treatment.

[0003] Because seeds can harbor various fungi, their vitality decreases during storage. Mold carried on seeds can even cause them to mold, seriously affecting their viability and germination rate. Ultrasonic frequencies can sterilize seeds, and those skilled in the art are urgently seeking a device capable of contact-based sterilization of seeds using ultrasound. Summary of the Invention

[0004] In view of this, the present invention provides a contact sterilization treatment device and treatment method for inactivating pathogens of crop seeds based on ultrasound, which are used to solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The contact sterilization treatment device for inactivating pathogens of crop seeds based on ultrasound comprises: a frame, an ultrasonic treatment device, a blanking port opening and closing device and a controller, wherein a hopper is provided at the top of the frame, and a blanking port is provided on one side of the bottom end of the hopper; the blanking port opening and closing device is installed at the inner top of the frame, and is located on the outside of the blanking port; the ultrasonic treatment device comprises an ultrasonic source, an ultrasonic contact plate, a first rotating shaft, a second rotating shaft, a motor, a first toothless gear, a first gear, an arc rod and a first spring, both ends of the first rotating shaft and the second rotating shaft are rotatably connected to the two opposite inner walls of the frame, and the first rotating shaft is located above the second rotating shaft; the motor is installed on the outer side wall of the frame, one end of the first rotating shaft is fixedly connected to the motor, and the first toothless gear is installed on the first rotating shaft The other end is 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, the first gear is fixedly mounted on one end of the second rotating shaft, and is located outside the frame, and the first toothless gear is meshed with the first gear; the arc rod is fixedly mounted on the bottom end of the ultrasonic contact plate, away from the side of the second rotating shaft, and the center of the arc rod is located on the axis of the second rotating shaft; a spring limiting plate is provided inside the frame, the arc rod passes through the spring limiting plate, and the first spring is sleeved on the arc 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 mounted on the inner top wall of the frame, and the motor and the ultrasonic source are electrically connected to the controller.

[0007] Furthermore, a limiting rod is provided inside the frame, and the limiting rod is located above the ultrasonic contact plate and away from the side of 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 blanking port opening and closing device includes a blanking port opening and closing bracket, a second spring, a guide tube and a driving device, the inner top wall of the frame is provided with multiple guide rods, and the multiple second springs are respectively sleeved on the multiple guide rods, the top 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 blanking port opening and closing bracket; the multiple guide tubes are fixedly installed on the lower surface of the blanking port opening and closing bracket, the guide rods are the same in number as the guide tubes, the guide rods pass through the blanking port opening and closing bracket, extend into the guide tubes, and are slidably connected to the guide tubes; the driving device is installed inside the frame, the driving device is transmission-connected to one side of the blanking port opening and closing bracket, and the other side of the blanking port opening and closing bracket is slidably connected to the side wall of the hopper, and the driving device drives the blanking port opening and closing bracket to move vertically for opening and closing the blanking port.

[0009] Furthermore, the driving device includes a second toothless gear and a rack, the second toothless gear is fixedly mounted on the first rotating shaft, the rack is fixedly mounted on the side wall of the blanking port opening and closing bracket, and the second toothless gear is meshed with the rack.

[0010] Furthermore, a vibrator motor is provided on the bottom wall of the hopper, and the vibrator 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, a plurality of universal wheels are provided at the bottom end of the frame.

[0013] The contact sterilization treatment method for inactivating pathogens of crop seeds based on ultrasound comprises the following steps:

[0014] S1. Screening the seeds to be processed and removing impurities;

[0015] S2. According to the type of seeds to be processed and the expected treatment effect, the controller adjusts the ultrasonic source and the working parameters so that the ultrasonic source generates the corresponding ultrasonic wave;

[0016] S3. Place the seeds into the hopper, and the through-hole controller turns on the motor. The motor drives the first rotating shaft to rotate, driving the second toothless gear inside the frame to rotate. The toothed part of the second toothless gear engages with the rack, driving the second spring at the top of the blanking port opening and closing bracket to compress and move upward. The seeds fall through the blanking port onto the ultrasonic contact plate, and the seeds are fully sterilized by ultrasound on the ultrasonic contact plate; until the toothed part of the first toothless gear rotates to engage with the first gear, driving the second rotating shaft to rotate, causing the other end of the ultrasonic contact plate to compress the first spring and rotate and tilt, and the treated seeds are discharged through the discharge funnel.

[0017] The beneficial effects of the present invention are:

[0018] The motor of the present invention drives the first rotating shaft to rotate. The rotation of the first rotating shaft can drive the vertical movement of the blanking port opening and closing bracket through the engagement of the second toothless gear and the rack, thereby realizing the opening and closing of the blanking port; the rotation of the first rotating shaft can also drive the second rotating shaft to rotate through the engagement of the first toothless gear and the first gear, thereby pouring the seeds treated with ultrasound into the discharge funnel; the seeds fall from the blanking port onto the horizontal ultrasonic contact plate, directly contacting the ultrasonic contact plate, and undergoing contact ultrasonic sterilization under the action of ultrasound, thereby improving the effect of seed sterilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 This is a front view of a contact sterilization device for inactivating pathogens in crop seeds based on ultrasound.

[0021] Figure 2 This is a view of the internal structure of a contact sterilization treatment device for inactivating crop seed pathogens based on ultrasound.

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

[0023] Figure 4 for Figure 2 A partial enlarged view of middle A.

[0024] Among them, in the figure:

[0025] 10-frame, 11-hopper, 12-feeding 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 toothless gear, 27-first gear, 28-arc-shaped rod, 29-first spring, 31-feeding port opening and closing bracket, 32-second spring, 33-guide tube, 34-second toothless gear, 35-rack, 40-controller, 41-switch, 50-vibrator motor, 60-discharging funnel, 70-universal wheel, 80-power supply device. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] Refer to the attached Figure 1-4The present invention provides a contact sterilization treatment device for inactivating pathogens of crop seeds based on ultrasound, comprising: a frame 10, an ultrasonic treatment device, a blanking port opening and closing device and a controller 40, wherein a hopper 11 is provided at the top of the frame 10, and a blanking port 12 is provided on one side of the bottom end of the hopper 11; the blanking port opening and closing device is installed at the inner top of the frame 10, and is located on the outside of the blanking port 12; the ultrasonic treatment device comprises an ultrasonic source 21, an ultrasonic contact plate 22, a first rotating shaft 23, a second rotating shaft 24, a motor 25, a first toothless 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 opposite inner walls of the frame 10, and the first rotating shaft 23 is 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 toothless gear 26 is installed at the other end of the first rotating shaft 23, and is located at the position opposite to the motor 25 The outside of the frame 10 is in the opposite direction; 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 on the outside of the frame 10, and the first toothless gear 26 is engaged with the first gear 27; the arc rod 28 is fixedly mounted on the bottom end of the ultrasonic contact plate 22, away from the side of the second rotating shaft 24, and the center of the arc 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 rod 28 passes through the spring limiting plate 14, and 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 mounted on the inner top wall of the frame 10, and a plurality of switches 41 are also provided on the controller 40, which respectively control the on and off of the motor 25, the vibrator motor 50 and the ultrasonic source 21; the bottom wall of the frame 10 is also provided with a power supply device 80 to power the entire device.

[0029] A limiting rod 13 is provided inside the frame 10, and the limiting rod 13 is located above the ultrasonic contact plate 22, away from the side of the second rotating shaft 24; after the toothed part of the first toothless gear 26 is disengaged 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, which is used to keep the ultrasonic contact plate 22 horizontal, and the seeds fall from the hopper 11 to the ultrasonic contact plate 22 and spread out, so that the seeds will not accumulate to one side due to the tilt of the ultrasonic contact plate 22, thereby affecting the effect of ultrasonic sterilization.

[0030] The blanking port opening and closing device includes a blanking 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 multiple guide rods 15, and multiple second springs 32 are respectively sleeved on the multiple guide rods 15. The top 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 blanking port opening and closing bracket 31; multiple guide tubes 33 are fixedly installed on the lower surface of the blanking port opening and closing bracket 31, and the number of guide rods 15 and guide tubes 33 is the same. The guide rods 15 pass through the blanking port opening and closing bracket 31, extend into the guide tubes 33, and are slidably connected with the guide tubes 33; the driving device is installed inside the frame 10, and the driving device is transmission-connected to one side of the blanking port opening and closing bracket 31, and the other side of the blanking port opening and closing bracket 31 is slidably connected to the side wall of the hopper 11. The driving device drives the blanking port opening and closing bracket 31 to move vertically for opening and closing the blanking port 12.

[0031] In a preferred embodiment, the driving device includes a second toothless gear 34 and a rack 35. The second toothless gear 34 is fixedly mounted on the first rotating shaft 23, and the rack 35 is fixedly mounted on the side wall of the blanking port opening and closing bracket 31. The second toothless gear 34 is meshed with the rack 35. This realizes the use of a single motor 25 to drive the ultrasonic treatment device and the blanking port opening and closing device to operate in sequence, making the device structure simpler and the transmission efficiency higher. The motor 25 drives the first rotating shaft 23 to rotate, which can drive the blanking port opening and closing bracket 31 to move vertically through the meshing of the second toothless gear 34 and the rack 35, thereby realizing the opening and closing of the blanking port 12. The motor 25 drives the first rotating shaft 23 to rotate, and can also drive the second rotating shaft 24 to rotate through the meshing of the first toothless gear 26 and the first gear 27, thereby pouring the seeds treated with ultrasound into the discharge funnel 60.

[0032] In a preferred embodiment, a vibrator motor 50 is provided on the bottom wall of the hopper 11, and the vibrator motor 50 is electrically connected to the controller 40. The vibrator motor 50 can make the seeds pass through the drop port 12 more evenly, so as to avoid accumulation at the drop port 12 and inability to drop the seeds.

[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, a plurality of universal wheels 70 are provided at the bottom end of the frame 10 to facilitate movement of the entire device.

[0035] Example 2

[0036] The contact sterilization treatment method for inactivating pathogens of crop seeds based on ultrasound comprises the following steps:

[0037] S1. Screening the seeds to be processed and removing impurities;

[0038] S2 according to the type of seeds to be processed and the expected treatment effect, the controller 40 adjusts the operating parameters of the ultrasonic source 21 and the ultrasonic source 21 to generate the corresponding ultrasonic wave;

[0039] S3. The seeds are placed in the hopper 11, and the through-hole controller 40 turns on the motor 25. The motor 25 drives the first rotating shaft 23 to rotate, driving the second toothless gear 34 inside the frame 10 to rotate. The toothed portion of the second toothless gear 34 engages with the rack 35, driving the blanking port opening and closing bracket 31 to compress the second spring 32 at the top to move upward, and the seeds fall through the blanking port 12 to the ultrasonic contact plate 22. The seeds are fully sterilized by ultrasound on the ultrasonic contact plate 22; until the toothed portion of the first toothless gear 26 rotates to engage with the first gear 27, driving the second rotating shaft 24 to rotate, causing the other end of the ultrasonic contact plate 22 to compress the first spring 29 and rotate and tilt, and the treated seeds are discharged through the discharge funnel 60.

[0040] The above is only a specific embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records 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 the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0042] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves, characterized in that: include: A frame (10), an ultrasonic processing device, a blanking opening and closing device, and a controller (40); A hopper (11) is provided at the top of the frame (10), and a drop opening (12) is provided at one side of the bottom end of the hopper (11); The blanking opening and closing device is installed at the inner top end of the frame (10) and is located outside the blanking opening (12); The ultrasonic processing device comprises an ultrasonic source (21), an ultrasonic contact plate (22), a first rotating shaft (23), a second rotating shaft (24), a motor (25), a first toothless 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 two opposite inner walls of the frame (10), and the first rotating shaft (23) is located above the second rotating shaft (24); The motor (25) is mounted on an 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 toothless gear (26) is mounted on the other end of the first rotating shaft (23) and is located outside the frame (10) in a direction opposite to the motor (25); One end of the ultrasonic contact plate (22) is fixedly mounted on the second rotating shaft (24), the first gear (27) is fixedly mounted on one end of the second rotating shaft (24) and is located outside the frame (10), and the first toothless gear (26) is meshed 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 side of 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 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 mounted 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).

2. The contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves according to claim 1, characterized in that: A limiting rod (13) is provided inside the frame (10), and the limiting rod (13) is located above the ultrasonic contact plate (22) and away from the side of 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.

3. The contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves according to claim 1, characterized in that: The blanking port opening and closing device comprises a blanking 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 blanking port opening and closing bracket (31); A plurality of guide tubes (33) are fixedly mounted on the lower surface of the blanking port opening and closing bracket (31), the guide rods (15) are the same in number as the guide tubes (33), and the guide rods (15) pass through the blanking port opening and closing bracket (31), extend into the guide tubes (33), and are slidably connected to the guide tubes (33); The driving device is installed inside the frame (10), and is transmission-connected to one side of the blanking port opening and closing bracket (31), and the other side of the blanking port opening and closing bracket (31) is slidingly connected to the side wall of the hopper (11). The driving device drives the blanking port opening and closing bracket (31) to move vertically, so as to open and close the blanking port (12).

4. The contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves according to claim 3, characterized in that: The driving device comprises a second toothless gear (34) and a rack (35), wherein the second toothless gear (34) is fixedly mounted on the first rotating shaft (23), and the rack (35) is fixedly mounted on the side wall of the blanking opening and closing bracket (31), and the second toothless gear (34) is meshed with the rack (35).

5. The contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves according to claim 1, characterized in that: A vibrator motor (50) is provided on the bottom wall of the hopper (11), and the vibrator motor (50) is electrically connected to the controller (40).

6. The contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves according to claim 2, characterized in that: A discharge funnel (60) is provided on the frame (10), and the discharge funnel (60) is located below the limiting rod (13); the other end of the discharge funnel (60) extends out of the frame (10).

7. The contact sterilization device for inactivating pathogens of crop seeds based on ultrasonic waves according to claim 1, characterized in that: A plurality of universal wheels (70) are provided at the bottom end of the frame (10).

8. A contact sterilization method for inactivating pathogens of crop seeds based on ultrasound, characterized in that: The steps include: S1. Screening the seeds to be processed and removing impurities; S2. According to the type of seeds to be processed and the expected treatment effect, the controller (40) adjusts the operating parameters of the ultrasonic source (21) so that the ultrasonic source (21) generates the corresponding ultrasonic wave; S3. The seeds are placed in the hopper (11), and the motor (25) is turned on through the controller (40). The motor (25) drives the first rotating shaft (23) to rotate, driving the second toothless gear (34) inside the frame (10) to rotate. The toothed portion of the second toothless gear (34) is engaged with the rack (35), driving the second spring (32) at the top of the drop opening and closing bracket (31) to move upward after being compressed. The seeds fall through the drop opening (12) onto the ultrasonic contact plate (22), and the seeds are fully sterilized by ultrasound on the ultrasonic contact plate (22); until the toothed portion of the first toothless gear (26) rotates to engage with the first gear (27), driving the second rotating shaft (24) to rotate, causing the other end of the ultrasonic contact plate (22) to compress the first spring (29) and rotate and tilt, and the treated seeds are discharged through the discharge funnel (60).

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