Hot air dryer for seeds
By using a drive motor to power a gear system and a hollow disc design, combined with a closed cover structure, the problem of insufficient quantity and wasted heat energy in existing hot air dryers when drying seeds in batches is solved, achieving a highly efficient and energy-saving seed drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-07
AI Technical Summary
Existing hot air dryers are limited in number for batch drying of seeds and suffer from significant hot air waste, failing to meet the needs of large-scale production.
The system uses a drive motor to drive the active gear, gear ring, and receiving tube, combined with a hollow disc and ventilation hole design to achieve cyclic drying of seeds. The system also improves heat energy utilization through a closed cover and uses a blocking plate and positioning pins to control seed discharge.
It enables efficient drying of large quantities of seeds, reduces heat waste, minimizes seed wear, and improves the energy efficiency and environmental friendliness of the equipment.
Smart Images

Figure CN224094792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural technology, specifically a seed hot air dryer. Background Technology
[0002] Seeds are the reproductive bodies unique to gymnosperms and angiosperms. They are formed from ovules through pollination and fertilization. Seeds generally consist of three parts: the seed coat, the embryo, and the endosperm. Some plants have mature seeds that only have the seed coat and the embryo. The above refers to seeds in a botanical sense, not seeds used in production. Seeds used in production include not only the botanical seeds mentioned above, but also plant organs that can be used for reproduction and artificial seeds.
[0003] Chinese utility model patent CN220602009U, published on March 15, 2024, discloses a hot air dryer for chili seeds that can be rotated, including a housing and a fixed air inlet pipe. This hot air dryer features a fixed air inlet pipe with a heating element inside to raise the temperature of the air entering the housing. A filter is installed at the top of the fixed air inlet pipe to prevent impurities from entering the housing. The filter is also easily detachable via bolts and a connecting rod for cleaning. A base is provided, and a movable clamp on top of the base is height-adjustable, allowing the clamp to hold the chili seeds in place when needed without interfering with workers. The base rotates inside the housing under the drive of a motor and a rotating plate, ensuring even heating of the chili seeds.
[0004] However, the above-mentioned publicly disclosed solutions have the following shortcomings: Although the existing hot air dryers achieve uniform drying, the number of seeds that can be dried at the same time is small, which is not suitable for the needs of batch drying. In addition, the hot air is directly exposed to the air, resulting in a lot of heat being wasted in the air. Utility Model Content
[0005] The purpose of this invention is to solve the technical problems of existing hot air dryers, which, although they achieve uniform drying, can only dry a small number of seeds at the same time, making them unsuitable for batch drying needs, and that the hot air is directly exposed to the air, resulting in a large amount of heat being wasted in the air. The invention provides a seed hot air dryer.
[0006] To achieve the above objectives, the present invention adopts the following technical solution;
[0007] The present invention discloses a seed hot air dryer, comprising a support base placed on the ground; a drive motor and a hot air blower are fixedly connected to the support base through an opening; a drive gear is fixedly connected to the drive shaft of the drive motor; a gear ring is meshed and connected to the drive gear; a receiving tube is fixedly connected inside the gear ring; the receiving tube is rotatably connected to the support base; a hollow disc is fixedly connected to the receiving tube; the hollow disc has multiple ventilation holes; and an inlet groove is formed on the receiving tube.
[0008] Furthermore, a discharge groove is formed on the arc surface of the hollow disc; a blocking plate is inserted into the discharge groove; and a positioning pin is inserted into the openings of the discharge groove and the blocking plate.
[0009] Furthermore, a limiting plate is fixedly and symmetrically to the corresponding entry groove on the receiving tube; a sealing plate is rotatably inserted into the limiting plate.
[0010] The seed hot air dryer provided by this utility model has the following beneficial effects:
[0011] 1. This utility model uses a drive motor and a hot air blower. The drive motor rotates the drive gear, gear ring, receiving tube, and hollow disc, causing fresh seeds entering the trough to circulate and fill the hollow disc below. Then, hot air blown out by the hot air blower passes through the vent holes for drying. At the same time, the dried seeds accumulate at the upper end of the receiving tube during the rotation of the hollow disc, allowing fresh seeds below to enter the hollow disc below for drying. This achieves the drying of a portion of the seeds at a time, and during the drying process, the friction on the seeds is small, reducing wear on the seed surface. Moreover, a large number of fresh seeds can be dried at once.
[0012] 2. This utility model can fix the blocking plate in the discharge groove by inserting a positioning pin, so that the seeds will not be discharged from the discharge groove. When it is necessary to take out the dried seeds from the discharge groove, simply remove the positioning pin and then remove the blocking plate to expose the discharge groove. Then rotate the hollow disc to make the discharge groove face downward, and the dried seeds can be discharged. Attached Figure Description
[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;
[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the third isometric structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the fourth isometric structure of this utility model.
[0018] The following are the labels in the diagram: 1. Support base; 2. Drive motor; 3. Drive gear; 4. Gear ring; 5. Receiving tube; 6. Hollow disc; 7. Vent hole; 8. Discharge groove; 9. Blocking plate; 10. Positioning pin; 11. Inlet groove; 12. Limiting plate; 13. Sealing plate; 14. Hot air blower; 15. Sealing cover. Detailed Implementation
[0019] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.
[0022] Please see Figure 1-4 As shown, a seed hot air dryer includes a support base 1 placed on the ground; a drive motor 2 and a hot air blower 14 are fixedly connected to the support base 1 through an opening; a drive gear 3 is fixedly connected to the drive shaft of the drive motor 2; a gear ring 4 is meshed and driven on the drive gear 3; a receiving tube 5 is fixedly connected inside the gear ring 4; the receiving tube 5 is rotatably connected to the support base 1; a hollow disc 6 is connected and fixedly connected to the receiving tube 5; the hollow disc 6 has multiple ventilation holes 7; an entry groove 11 for seeds to enter is opened on the receiving tube 5; when the drive motor 2 and the hot air blower 14 are powered, the drive motor 2 drives the drive gear 3... The toothed ring 4, the receiving tube 5, and the hollow disc 6 rotate, causing the fresh seeds entering the groove 11 to circulate and fill the hollow disc 6 below. Then, hot air blown out by the hot air blower 14 passes through the vent 7 for drying. At the same time, the dried seeds accumulate at the upper end of the receiving tube 5 during the rotation of the hollow disc 6, allowing the fresh seeds below to enter the hollow disc 6 below for drying. This achieves the drying of a portion of the seeds at a time, and during the drying process, the friction on the seeds is small, reducing wear on the seed surface. Moreover, a large number of fresh seeds can be dried at once.
[0023] A discharge groove 8 is provided on the arc surface of the hollow disc 6; a blocking plate 9 is inserted into the discharge groove 8; a positioning pin 10 is inserted into the openings of the discharge groove 8 and the blocking plate 9. By inserting the positioning pin 10, the blocking plate 9 can be fixed in the discharge groove 8, so that the seeds will not be discharged from the discharge groove 8. When it is necessary to remove the dried seeds from the discharge groove 8, simply remove the positioning pin 10 and the blocking plate 9 to expose the discharge groove 8. Then rotate the hollow disc 6 so that the discharge groove 8 faces downwards, and the dried seeds can be discharged.
[0024] A limiting plate 12 is symmetrically fixed to the receiving tube 5 corresponding to the inlet groove 11. A sealing plate 13 is rotatably inserted into the limiting plate 12. The limiting plate 12 is located around the inlet groove 11 by symmetrically fixing it. Therefore, by rotating the corresponding shape of the sealing plate 13, it can be taken out from the gap between the two limiting plates 12, or it can be stuck in the two limiting plates 12 to block the inlet groove 11 so that the seeds and hot air will not escape quickly, thus making it more energy-saving and environmentally friendly.
[0025] A sealing cover 15 is fitted onto the side of the support base 1. The sealing cover 15 blocks the openings at both ends of the support base 1 and thickens the side of the support base 1, so that hot air will not be discharged quickly, thus making the support base 1 more heat-insulating and more energy-efficient and environmentally friendly.
[0026] The enclosed cover 15 is made of thermal insulation material. The enclosed cover 15, made of thermal insulation material, blocks the openings at both ends of the support base 1 and thickens the sides of the support base 1, so that hot air will not be discharged quickly, thus making the support base 1 more thermally insulated and more energy-efficient and environmentally friendly.
[0027] A protruding handle is fixed to the sealing plate 13, which allows the sealing plate 13 to be easily rotated by holding it with both hands, thus facilitating the installation and removal of the sealing plate 13 between the limiting plates 12.
[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A seed hot air dryer, characterized in that; The device includes a support base (1) placed on the ground; a drive motor (2) and a hot air blower (14) are fixedly connected to the support base (1) through an opening; a drive gear (3) is fixedly connected to the drive shaft of the drive motor (2); a gear ring (4) is meshed and connected to the drive gear (3); a receiving tube (5) is fixedly connected inside the gear ring (4); the receiving tube (5) is rotatably connected to the support base (1); a hollow disc (6) is connected and fixedly connected to the receiving tube (5); the hollow disc (6) has multiple ventilation holes (7); and an inlet groove (11) is opened on the receiving tube (5).
2. The seed hot air dryer according to claim 1, characterized in that: The hollow disc (6) has a discharge groove (8) on its arc surface; a blocking plate (9) is inserted into the discharge groove (8); and a positioning pin (10) is inserted into the openings of the discharge groove (8) and the blocking plate (9).
3. The seed hot air dryer according to claim 1, characterized in that: A limiting plate (12) is fixedly and symmetrically connected to the receiving tube (5) corresponding to the entry groove (11); a sealing plate (13) is rotatably inserted into the limiting plate (12).
4. The seed hot air dryer according to claim 1, characterized in that: The support base (1) is fitted with a closed cover (15) on its side.
5. The seed hot air dryer according to claim 4, characterized in that: The enclosure (15) is made of insulating material.
6. The seed hot air dryer according to claim 3, characterized in that: A protruding handle is fixed to the closed plate (13).
Citation Information
Patent Citations
Pepper seed hot air dryer capable of being overturned
CN220602009U