Multifunctional wheat seed pre-planting screening device

Abstract

The utility model relates to the technical field of wheat seed screening equipment, in particular to a multifunctional wheat seed pre-planting screening device which comprises a support, and a multi-stage screening mechanism is movably arranged on the upper portion of the support. The flow guide plate is obliquely arranged below the multi-stage screening mechanism; the air uniformizing box is arranged between the multi-stage screening mechanism and the flow guide plate and comprises a box body, a first air uniformizing plate and a second air uniformizing plate, the first air uniformizing plate is arranged in the box body, the second air uniformizing plate is arranged on one side of the box body, a plurality of first air uniformizing openings are formed in the first air uniformizing plate, and a plurality of second air uniformizing openings are formed in the second air uniformizing plate. A plurality of second air uniformizing openings are formed in the second air uniformizing plate, and the first air uniformizing openings and the second air uniformizing openings are arranged in a staggered mode. The wheat seed screening device solves the problem that a traditional wheat seed screening device is single in screening function.

Description

Technical Field

[0001] This utility model relates to the technical field of wheat seed screening equipment, and more specifically to a multifunctional wheat seed pre-planting screening device. Background Technology

[0002] A wheat seed screening device is an agricultural instrument used to screen and grade wheat seeds. It aims to remove impurities, defective seeds, and separate seeds into different grades to improve seed quality and enhance planting results. This device is commonly used in the seed treatment stage of agricultural production, especially for optimizing seeds before large-scale sowing.

[0003] Chinese patent publication number CN222152870U discloses a wheat seed screening device that solves the problem that the screening effect of current wheat seed screening devices is poor, which affects the quality of wheat seeds. The device includes a screening box, with a feed pipe connected to one side of the upper end of the screening box and a discharge pipe connected to one side of the lower end of the screening box.

[0004] While existing wheat seed screening devices can perform two-stage screening of wheat seeds, separating them by particle size, they cannot screen out weeds or hollow seeds, thus affecting the seed yield. Therefore, it is necessary to develop a wheat seed screening device that can separate both the particle size and the quality of wheat seeds. Utility Model Content

[0005] The purpose of this invention is to provide a multifunctional wheat seed pre-planting screening device, which solves the problem that the screening function of traditional wheat seed screening devices is relatively simple.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] This utility model provides a multifunctional wheat seed pre-planting screening device, including a support frame, with a multi-stage screening mechanism movable on the upper part of the support frame; a guide plate, which is inclinedly arranged below the multi-stage screening mechanism; and an air distribution box, which is arranged between the multi-stage screening mechanism and the guide plate, including a box body, a first air distribution plate and a second air distribution plate. The first air distribution plate is arranged inside the box body, and the second air distribution plate is arranged on one side of the box body. The first air distribution plate has a plurality of first air distribution ports, and the second air distribution plate has a plurality of second air distribution ports, which are staggered.

[0008] Furthermore, both the air distribution box and the guide plate are fixedly connected to the bracket.

[0009] Furthermore, a fan is connected to the side of the air distribution box away from the second air distribution plate.

[0010] Furthermore, the first and second air distribution plates are arranged in parallel.

[0011] Furthermore, the multi-stage screening mechanism includes an inclined first screen and a second screen, with the first screen arranged parallel above the second screen, and the first screen and the second screen respectively having a first seed outlet and a second seed outlet on the side near the air distribution box.

[0012] Furthermore, a vibrator is connected to the lower part of the second screen, and the vibrator is fixed on the support.

[0013] Furthermore, the aperture of the first screen is larger than that of the second screen.

[0014] Furthermore, a baffle is provided on the upper part of the guide plate, and the baffle is located between the first seed outlet and the second seed outlet.

[0015] Technical effects of this utility model:

[0016] Compared with existing technologies, the multifunctional wheat seed pre-planting screening device of this utility model screens wheat seeds by setting up a multi-stage screening mechanism and a uniform air box. This achieves both screening of wheat seed particle size and screening of wheat seed quality, greatly improving the quality of wheat seeds and ensuring the seed yield. By setting up a first uniform air plate and a second uniform air plate, the airflow output from the uniform air box is made more uniform, ensuring that wheat seeds are evenly screened by the airflow output from the uniform air box during the falling process. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the bellows box in this utility model.

[0020] in:

[0021] 1. Support frame; 2. Vibrator; 3. First screen; 4. Second screen; 5. Air distribution box; 6. Guide plate; 7. First seed outlet; 8. Second seed outlet; 9. Partition plate; 10. Fan; 51. Box body; 52. First air distribution plate; 53. First air distribution outlet; 54. Second air distribution plate; 55. Second air distribution outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] like Figure 1-3 As shown in this embodiment, a multifunctional wheat seed pre-planting screening device includes a support 1, with a multi-stage screening mechanism movably mounted on the upper part of the support 1. This multi-stage screening mechanism is used to perform multi-stage screening of wheat seed particle size, achieving preliminary screening of wheat seed quality. A guide plate 6 is inclinedly positioned below the multi-stage screening mechanism. An air distribution box 5 is positioned between the multi-stage screening mechanism and the guide plate 6, including a box body 51, a first air distribution plate 52, and a second air distribution plate 54. The first air distribution plate 52 is located inside the box body 51, and the second air distribution plate 54 is located on one side of the box body 51. The first air distribution plate 52 has several first air distribution openings 53, and the second air distribution plate 54 has several second air distribution openings 54. Two equalizing air outlets 55, the first equalizing air outlet 53 and the second equalizing air outlet 55 are staggered, the first equalizing air plate 52 and the second equalizing air plate 54 are arranged in parallel, and the equalizing air box 5 is used to output a uniform airflow to further screen the falling wheat seeds, removing weeds and hollow seeds. By setting up a multi-stage screening mechanism and the equalizing air box 5 to screen the wheat seeds together, both the particle size and quality of the wheat seeds are screened, which greatly improves the quality of the wheat seeds and ensures the seed yield. By setting up the first equalizing air plate 52 and the second equalizing air plate 54, the airflow output by the equalizing air box 5 is more uniform, ensuring that the wheat seeds are evenly screened by the airflow output by the equalizing air box 5 during the falling process.

[0025] The air distribution box 5 and the guide plate 6 are both fixedly connected to the bracket 1. A fan 10 is connected to the side of the air distribution box 5 away from the second air distribution plate 54. The fan 10 is used to deliver airflow into the air distribution box 5.

[0026] The multi-stage screening mechanism includes an inclined first screen 3 and a second screen 4. The first screen 3 is arranged parallel above the second screen 4. The first screen 3 and the second screen 4 are respectively provided with a first seed outlet 7 and a second seed outlet 8 on the side near the air distribution box 5. The upper part of the guide plate 6 is provided with a partition 9, which is located between the first seed outlet 7 and the second seed outlet 8. The lower part of the second screen 4 is connected to a vibrator 2, which is fixed on the bracket 1. The aperture of the first screen 3 is larger than the aperture of the second screen 4.

[0027] Working principle

[0028] When screening wheat seeds, the wheat seeds are placed on the upper part of the first screen 3, and then the vibrator 2 is started to vibrate the multi-stage screening mechanism. When the multi-stage screening mechanism vibrates, the wheat seeds with smaller particle sizes fall to the upper part of the second screen 4, and the fine dust in the wheat seeds passes through the second screen 4 and falls to the bottom, completing the particle size screening of the wheat seeds. Then, the wheat seeds with larger particle sizes are output from the first seed outlet 7, and the wheat seeds with smaller particle sizes are output from the second seed outlet 8. Under the action of gravity, the wheat seeds fall onto the guide plate 6, and then the fan 10 is started. The fan 10 outputs airflow into the air distribution box 5. Under the action of the first air distribution plate 52 and the second air distribution plate 54, the uniform airflow screens the falling wheat seeds, removing weeds and hollow seeds, thus completing the screening of wheat seeds.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-functional pre-planting screening device for wheat seeds, characterized in that, The utility model relates to a seed screening device, including: A support, the upper part of the support is provided with a multi-stage screening mechanism; A guide plate, which is obliquely arranged below the multi-stage screening mechanism; An air equalizing box, which is arranged between the multi-stage screening mechanism and the guide plate, includes a box body, a first air equalizing plate and a second air equalizing plate, the first air equalizing plate is arranged inside the box body, the second air equalizing plate is arranged on one side of the box body, a plurality of first air equalizing openings are formed in the first air equalizing plate, a plurality of second air equalizing openings are formed in the second air equalizing plate, and the first air equalizing openings and the second air equalizing openings are staggered.

2. A multi-functional wheat seed pre-planting screening device as claimed in claim 1, wherein: The air equalizing box and the guide plate are fixedly connected with the support.

3. A multi-functional wheat seed pre-planting screening device as claimed in claim 1, wherein: A fan is arranged on the side of the air equalizing box away from the second air equalizing plate.

4. A multi-functional wheat seed pre-planting screening device as claimed in claim 3, wherein: The first air equalizing plate and the second air equalizing plate are arranged in parallel.

5. A multi-functional wheat seed pre-planting screening device as claimed in claim 1, wherein: The multi-stage screening mechanism includes oblique first and second screens, the first screen is arranged above the second screen in parallel, and the first and second screens are respectively provided with first and second seed outlets on the side close to the air equalizing box.

6. A multi-functional wheat seed pre-planting screening device as claimed in claim 5, wherein: A vibrator is connected to the lower part of the second screen and fixed to the support.

7. A multi-functional wheat seed pre-planting screening device as claimed in claim 5, wherein: The pore size of the first screen is larger than that of the second screen.

8. A multi-functional wheat seed pre-planting screening device as claimed in claim 5, wherein: A partition is arranged on the upper part of the guide plate and located between the first and second seed outlets.

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