Optical sterilization device for crop seeds
By designing an optical sterilization device for crop seeds, sterilization is performed using pulsed ultraviolet light and reflective structures, and sterilization is achieved through the vibration module, the problem of chemical pollution and sterilization effect in the prior art is solved, and efficient and pollution-free seed sterilization effect is achieved.
Patent Information
- Application Number
- CN202520331579.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing seed sterilization technology has the problems of chemical pollution and degradation of sterilization effects, and the physical disinfection technology equipment is complex, affecting efficiency and automation.
An optical sterilization device is designed, including a seed transmission mechanism, a light source module and a vibration module, which uses pulsed ultraviolet light and reflective structure for sterilization, and 360° sterilization is achieved through the vibration module.
It achieves efficient and chemically contaminated seed sterilization, significantly improving the sterilization efficiency and automation, and is suitable for sterilization treatment of seeds such as vegetables and grains.
Smart Images
Figure CN222869396U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of seed sterilization and relates to an optical sterilization device for crop seeds. Background Art
[0002] Before sowing, seed sterilization is one of the essential steps in the sowing of grains in modern agriculture. The traditional seed sterilization technology is to soak and wash seeds through a chemical solution. With the progress of agricultural mechanization, seed coating treatment is on the rise. However, both chemical soaking and coating technology are technologies for treating seeds with chemical drugs. On the one hand, this sterilization method causes pesticide residues in crops and soil pollution because the drugs are not degraded or are difficult to degrade; on the other hand, due to the increasing bacterial resistance, the sterilization effect of chemical drugs has decreased, and the sterilization is not ideal, resulting in seed infection and diseases such as seedling damage, which seriously affects crop yields.
[0003] As a physical disinfection technology, cold plasma seed treatment technology does not have the above problems, but the equipment is relatively complex and a vacuum state needs to be maintained during the disinfection process, which seriously affects the disinfection efficiency and degree of automation. It is not suitable for assembly line application, which limits its promotion and application. Summary of the invention
[0004] The technical problem to be solved by the utility model is to provide an optical sterilization device for crop seeds, which has a simple structure, high sterilization efficiency and no chemical pollution.
[0005] In order to solve the above technical problems, the optical sterilization device for crop seeds of the utility model includes a workbench, a seed conveying mechanism, a light source module, and a vibration module; the seed conveying mechanism is arranged on the workbench; the light source module is arranged above the sterilization area of the seed conveying mechanism, and the light source therein adopts a light source that can emit pulsed ultraviolet light; the vibration module is arranged under the workbench, which can drive the workbench and the seed conveying mechanism to vibrate.
[0006] Furthermore, the seed conveying mechanism includes a feed port, a belt transmission mechanism, a discharge port and a shell; the feed port is arranged on the left side of the shell, and its bottom opening is communicated with the left top opening of the shell; the discharge port is fixed at the lower right side of the shell, and its position corresponds to the right side opening of the shell; the upper surface of the shell has a light irradiation opening at a position corresponding to the sterilization area.
[0007] Furthermore, a regulating valve is provided at the bottom of the feed inlet.
[0008] Furthermore, the light source module includes an upper cover and at least one light source arranged at the bottom of the upper cover; the upper cover is a shell structure, which can cover the light irradiation opening on the upper surface of the shell.
[0009] Furthermore, the upper cover is a shell with a trapezoidal or rectangular cross-section, and its edge is connected to the outer shell through a hinge.
[0010] Furthermore, a reflective structure corresponding to the number of light sources is also provided at the bottom of the upper cover; the pulsed ultraviolet light emitted by the light source and the pulsed ultraviolet light reflected by the reflective structure can irradiate the sterilization area of the seed conveying mechanism.
[0011] Furthermore, the bottom of the upper cover has at least one elongated opening parallel to the transmission direction of the belt drive mechanism, and each reflective structure is fixed at the corresponding elongated opening, using a semi-cylindrical concave reflector; the light source uses a straight tube pulse xenon lamp, and its axis coincides with the axis of the semi-cylindrical concave reflector.
[0012] Furthermore, the bottom of the upper cover has at least one circular hole, and the reflective structure is fixed at the corresponding circular hole, using a hemispherical concave reflector; the light source is a disk-shaped pulsed xenon lamp, which is set at the center of the corresponding hemispherical concave reflector.
[0013] The vibration module adopts a vibration motor.
[0014] Beneficial effects:
[0015] 1. Using the instantaneous release effect of strong ultraviolet light to kill bacteria, fungi and other microorganisms on the surface of seeds can significantly reduce the use of chemical coating agents and pesticides, realize the "greening" of sterilization technology, and can be used for the sterilization of various seeds such as vegetables and grains.
[0016] 2. Use the reflective structure to reflect the ineffective light of the pulse xenon lamp to the seed surface, increase the energy density of the seed surface, improve the light efficiency and shorten the sterilization time.
[0017] 3. The vibration module is used to turn the crop seeds 360 degrees, which can achieve all-round sterilization of seeds without dead angles.
[0018] The utility model has the advantages of simple operation and high sterilization efficiency, and can realize the real "greening" of the agricultural sterilization field. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model.
[0020] Figure 2 It is a side sectional view of the local structure of Example 1 of the utility model.
[0021] Figure 3a , 3b This is the illumination distribution diagram when the conveyor belt width is 40 cm and the light source is a straight tube pulse xenon lamp without adding a reflective structure.
[0022] Figure 4a ,4b This is the illumination distribution diagram with a reflective structure when the conveyor belt width is 40 cm and the light source is a straight tube pulse xenon lamp.
[0023] Figure 5a , 5b This is the illumination distribution diagram when the conveyor belt width is 60 cm and the light source is two straight tube pulse xenon lamps without adding a reflective structure.
[0024] Figure 6a , 6b This is the illumination distribution diagram of the reflective structure when the conveyor belt width is 60 cm and the light source is two straight tube pulse xenon lamps.
[0025] Figure 7 This is a schematic diagram of the overall structure of Example 2 of the utility model.
[0026] Figure 8 It is a side sectional view of the local structure of Example 2 of the utility model. DETAILED DESCRIPTION
[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances.
[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0030] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0031] Example 1
[0032] like Figure 1 , Figure 2 As shown, the optical sterilization device for crop seeds of the utility model includes a workbench 1, a seed conveying mechanism, a light source module 3, and a vibration module; the seed conveying mechanism is arranged on the workbench 1; the light source module is arranged above the sterilization area of the seed conveying mechanism; the vibration module is arranged under the workbench 1, which can drive the workbench 1 and the seed conveying mechanism to vibrate.
[0033] The seed conveying mechanism is arranged on the workbench 1, including a feed port 21, a belt transmission mechanism 22, a discharge port 23 and a shell 24; the feed port 21 is arranged on the left side of the shell 24, and its bottom opening is communicated with the left top opening of the shell 24; a regulating valve 25 can be arranged at the bottom of the feed port 21 to control the flow rate of the seeds to ensure a single-layer distribution of the seeds reaching the conveyor belt of the belt transmission mechanism 22; the discharge port 23 is fixed at the lower right side of the shell 24, and its position corresponds to the right side opening of the shell 24; the upper surface of the shell 24 has a light irradiation opening, which corresponds to the sterilization area on the upper surface of the conveyor belt of the belt transmission mechanism 22.
[0034] The light source module 3 includes an upper cover 31, one or more light sources 32 fixed to the bottom of the upper cover 31, and reflective structures 33 corresponding to the number of the light sources 32; the upper cover 31 is a shell with a trapezoidal or rectangular cross-section, and its edge is connected to the outer shell 24 through a hinge, which can cover the light irradiation opening on the upper surface of the outer shell 24; the bottom of the upper cover 31 has a long strip opening parallel to the transmission direction of the belt drive mechanism 22 and corresponding to the number of the light sources 32; each reflective structure 33 is fixed at the corresponding long strip opening, and adopts a semi-cylindrical concave reflector; each light source 32 adopts a straight tube pulse xenon lamp that can emit high-energy pulsed ultraviolet light, and the axis of the straight tube pulse xenon lamp coincides with the axis of the corresponding semi-cylindrical concave reflector.
[0035] The vibration module adopts a vibration motor 4 , and the vibration motor 4 is fixed under the workbench 1 .
[0036] Assume that the width of the conveyor belt is 40 cm, and a light source 32 is installed at the bottom of the upper cover 31; the light source 32 is a straight tube pulse xenon lamp, which is 16 inches (about 40.64 cm) long and 20 cm away from the sterilization surface; Figure 3a , 3b This is the illumination distribution diagram without reflective structure. Figure 4a , 4b This is the illumination distribution diagram after adding a semi-cylindrical concave reflector. The results show that the sterilization area is about 40cm×30cm, the reflective structure increases the energy utilization of the light source by more than 30%, and the illumination uniformity is greater than 70% (average illumination / maximum illumination), which can significantly shorten the sterilization time and increase the sterilization efficiency.
[0037] Assume that the width of the conveyor belt is 60 cm, and two light sources 32 are installed at the bottom of the upper cover 31, with a distance of 30 cm between them; the light source 32 is a straight tube pulse xenon lamp, with a length of 16 inches (about 40.64 cm) and a distance of 20 cm from the sterilization surface; Figure 5a , 5b This is the illumination distribution diagram without reflective structure. Figure 6a , 6b This is the illuminance distribution diagram after adding a semi-cylindrical concave reflector. The results show that the sterilization area is about 60cm×30cm, the reflective structure increases the energy utilization of the light source by more than 30%, and the illuminance uniformity is greater than 80% (average illuminance / maximum illuminance), which can significantly shorten the sterilization time and increase the sterilization efficiency.
[0038] Example 2
[0039] like Figure 7 , 8 As shown, the difference between this embodiment and embodiment 1 is that: a plurality of circular holes are evenly distributed on the bottom of the upper cover 31, and the reflective structure 33 is fixed at the corresponding circular holes, using a hemispherical concave reflector; the light source 32 uses a disc-shaped pulse xenon lamp, which is arranged at the center of the corresponding hemispherical concave reflector.
[0040] For different types of seeds, the utility model can also adjust the speed of the conveyor belt, set the voltage value and pulse frequency of the light source, and the vibration frequency of the vibration module through the control panel.
[0041] The working process of the utility model is as follows: the seeds are poured into the feed port 21 and fall onto the conveyor belt through the regulating valve, and move with the conveyor belt; the light source 32 is turned on to irradiate the high-energy pulsed ultraviolet light emitted by it and the pulsed ultraviolet light reflected by the reflecting structure 33 onto the conveyor belt, sterilizing the seeds in the process of moving forward, and the seeds after sterilization fall into the discharge port 23, so as to realize the collection and storage of the sterilized seeds. In this process, the vibrating motor 4 drives the workbench and the transmission belt to vibrate and make the seeds roll, so as to realize 360° sterilization of the seeds, and the sterilization is more thorough.
[0042] The light sources 32 are evenly arranged, and the pulsed ultraviolet light emitted by them is reflected by the reflective structure, which not only improves the utilization rate of light energy and the sterilization efficiency, but also ensures that the irradiance of the sterilization area on the conveyor belt is as uniform as possible to achieve the best sterilization effect.
[0043] The above describes the basic structure, main features and advantages of the utility model, and the embodiments are only preferred embodiments of the utility model. The above embodiments only describe the basic structure and principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements belong to the protection scope of the utility model.
Claims
1. An optical sterilization device for crop seeds, characterized in that The invention comprises a workbench (1), a seed conveying mechanism, a light source module (3), and a vibration module; the seed conveying mechanism is arranged on the workbench; the light source module is arranged above the sterilization area of the seed conveying mechanism, and the light source therein is a light source capable of emitting pulsed ultraviolet light; the vibration module is arranged below the workbench and can drive the workbench and the seed conveying mechanism to vibrate; the seed conveying mechanism comprises a feed port (21), a belt transmission mechanism (22), a discharge port (23), and a housing (24); the feed port is arranged on the left side of the housing, and its bottom opening is communicated with the left top opening of the housing; The discharge port is fixed at the lower right side of the shell, and its position corresponds to the right opening of the shell; A light irradiation opening is provided at a position on the upper surface of the shell corresponding to the sterilization area; the light source module comprises an upper cover (31) and at least one light source (32) arranged at the bottom of the upper cover; the upper cover is a shell structure and can cover the light irradiation opening on the upper surface of the shell; the vibration module adopts a vibration motor (4).
2. The optical sterilization device for crop seeds according to claim 1, characterized in that A regulating valve (25) is arranged at the bottom of the feed inlet.
3. The optical sterilization device for crop seeds according to claim 1, characterized in that The upper cover is a shell with a trapezoidal or rectangular cross section, and its edge is connected to the outer shell through a hinge.
4. The optical sterilization device for crop seeds according to claim 1, characterized in that The bottom of the upper cover is also provided with a reflecting structure (33) corresponding to the number of light sources; the pulsed ultraviolet light emitted by the light source and the pulsed ultraviolet light reflected by the reflecting structure can irradiate the sterilization area of the seed conveying mechanism.
5. The optical sterilization device for crop seeds according to claim 4, characterized in that The bottom of the upper cover has at least one long strip opening parallel to the transmission direction of the belt drive mechanism. Each reflective structure is fixed at the corresponding long strip opening and adopts a semi-cylindrical concave reflector. The light source adopts a straight tube pulse xenon lamp, and its axis coincides with the axis of the semi-cylindrical concave reflector.
6. The optical sterilization device for crop seeds according to claim 4, characterized in that The bottom of the upper cover has at least one circular hole, and the reflective structure is fixed at the corresponding circular hole, using a hemispherical concave reflector; the light source is a disk-shaped pulse xenon lamp, which is set at the center of the corresponding hemispherical concave reflector.