Screening device for crop seed production

Abstract

The screening device for crop seed production comprises a screening box, positioning plates are fixedly connected to the two sides of the screening box, vibration motors are fixedly connected to the upper end faces of the positioning plates, a slot is formed in one side of the screening box, a mounting frame is movably connected into the slot, and a limiting frame is fixedly connected to the inner wall of the mounting frame. The upper end face of the limiting frame is movably connected with a screen, one side of the mounting frame is fixedly connected with a positioning block, through use of the two vibration motors, the screening box can be vibrated, seeds can be rapidly screened in cooperation with use of screening in the mounting frame, through butt joint of a locking column and a locking hole, the mounting frame can be fixed, and the practicability is high. According to the screening device, it is guaranteed that in the screening process, the mounting frame is stable enough, meanwhile, pulling of a pulling rod can drive a locking column to move, the mounting frame can be conveniently and rapidly locked and disassembled, a filter net is movably connected with the mounting frame, the screen net can be conveniently and flexibly replaced, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a screening device for crop seed production. Background Art

[0002] Crop seeds are an indispensable and important element in agricultural production and one of the key factors in increasing agricultural production and farmers' income. Screening is an important link in the production process of crop seeds. Through screening, seeds can be separated according to characteristics such as size, shape and quality, thereby improving the quality and purity of seeds.

[0003] The existing patent CN221017331U discloses a screening device for crop seed production, including two groups of support legs, and a screening and separation mechanism is commonly arranged above the two groups of support legs; the screening and separation mechanism includes a screening frame body, and the upper surface of each group of support legs is fixedly connected to the bottom surface of the screening frame body, and the inner wall of the screening frame body is fixedly connected with two groups of buffer springs. The screening device for crop seed production can efficiently screen different types of crop seeds through the screening frame body, buffer springs, controller device body, filter frame, discharge frame, vibration motor body, filter net and injection frame, effectively avoiding the problem of clogging of crop seeds during the screening process. When screening different types of crop seeds, the staff can replace different filter nets according to the different types of crop seeds by using the filter net and filter frame, so as to further improve the use range of the device.

[0004] Based on the search of the above patents and in combination with the screening devices in the prior art, it was found that when the above screening device is in use, the filter frame is vibrated by using two vibration motor bodies to achieve the vibration of the filter net and vibrate the crop seeds. However, in actual use, the filter net and the filter frame are vibrating, and the filter net is not well fixed, which can easily cause the filter net to loosen and slide with the filter frame, affecting the normal filtering operation, thereby reducing practicality. Utility Model Content

[0005] The utility model aims to provide a screening device for crop seed production. Through the use of two vibration motors, the screening box can be vibrated, and the seeds can be quickly screened by cooperating with the screening in the installation frame. The installation frame can be fixed by the docking of the locking column and the locking hole, ensuring that the installation frame is sufficiently stable during the screening process. At the same time, the pulling of the pulling rod can drive the locking column to move, which is convenient for the rapid locking and disassembly of the installation frame. The filter screen is movably connected to the installation frame, which can facilitate the flexible replacement of the screen screen and improve the flexibility of use.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a screening device for crop seed production, comprising a screening box, positioning plates are fixedly connected on both sides of the screening box, a vibration motor is fixedly connected to the upper end surface of the positioning plate, a slot is provided on one side of the screening box, a mounting frame is movably connected in the slot, a limiting frame is fixedly connected on the inner wall of the mounting frame, a screen is movably connected to the upper end surface of the limiting frame, a positioning block is fixedly connected to one side of the mounting frame, a locking hole is provided on the lower end surface of the positioning block, a locking column is movably connected in the locking hole, a connecting plate is fixedly connected to the bottom end of the locking column, a pulling rod is fixedly connected to the lower end surface of the connecting plate, a fixing block is slidably connected to the outer wall of the pulling rod, the fixing block is fixedly connected to the screening box, a tension spring is sleeved on the outer surface of the pulling rod, and both ends of the tension spring are respectively fixedly connected to the connecting plate and the fixing block.

[0007] The beneficial effects of the utility model are as follows: through the use of two vibration motors, the screening box can be vibrated, the screening in the installation frame can be vibrated, and the crop seeds can be screened; the screen is movably connected to the installation frame, which is convenient for replacing and cleaning the screen; the docking of the locking column and the locking hole can ensure the stability of the installation frame and prevent it from sliding at will, thereby ensuring the stability of the screening; the pulling of the pulling rod can cause the connecting plate to squeeze the spring, so that the locking column and the locking hole are separated, which is convenient for quickly unlocking and disassembling the installation frame;

[0008] In order to fix the installation frame and ensure the stability of screening;

[0009] As a further improvement of the above technical solution: buffer columns are fixedly connected at the four corners of the lower end surface of the screening box, fixed columns are slidably connected to the outer walls of the buffer columns, buffer grooves are provided in the fixed columns, a bottom plate is commonly and fixedly connected to the bottom ends of the multiple fixed columns, a movable groove is provided at the center of the bottom plate, a buffer spring is sleeved on the outer surface of the buffer column, two ends of the buffer spring are respectively fixedly connected to the screening box and the fixed columns, a support spring is provided in the buffer groove, and the support spring is fixedly connected to the buffer column.

[0010] The beneficial effects of this improvement are as follows: by using the buffer column and the fixed column, the buffer column slides in the buffer groove to provide sufficient space for the vibration of the screening box, the buffer spring can buffer the screening box to improve the stability of the screening box during the vibration screening process, and the support spring can support the buffer column to ensure the stability of the buffer column;

[0011] In order to support and cushion the screening box, ensure the stability of vibration and facilitate screening;

[0012] As a further improvement of the above technical solution: connecting grooves are provided on the inner walls on both sides of the slot, connecting rods are movably connected in the connecting grooves, and the connecting rods are fixedly connected to the installation frame.

[0013] The beneficial effects of this improvement are: through the use of the connecting groove and the connecting rod, the installation frame and the screening box can be stably connected to prevent the installation frame from being skewed or loose, which affects the normal screening work;

[0014] In order to limit the installation frame and ensure the stability of the installation frame;

[0015] As a further improvement of the above technical solution: two symmetrical guide rods are fixedly connected to the lower end surface of the connecting plate, and the guide rods are slidably connected to the fixed block.

[0016] The beneficial effect of this improvement is that the connecting plate can be guided by the guide rod to ensure that the connecting plate will not be skewed during the movement of the locking column, and always maintain a vertical upward and downward movement trajectory;

[0017] In order to guide the connecting plate and the locking column and ensure that the locking column and the locking hole are accurately connected;

[0018] As a further improvement of the above technical solution: limit bars are fixedly connected to the inner walls on both sides of the screening box, and the lower end surfaces of the limit bars are movably connected to lifting handles, and the lifting handles are fixedly connected to the screen.

[0019] The beneficial effect of this improvement is that the lifting handle can be limited by using the limit strip, so as to ensure that the screen is sufficiently stable during use and will not become loose;

[0020] In order to fix the screen and ensure stability during the screening process;

[0021] As a further improvement of the above technical solution: a feed hopper is fixedly connected to the upper end surface of the screening box, a collecting cover is fixedly connected to the lower end surface of the screening box, the collecting cover is movably connected to the bottom plate, a collecting hopper is fixedly connected inside the screening box, and the collecting hopper is communicated with the collecting cover.

[0022] The beneficial effects of this improvement are: by using the feed hopper, the crop seeds to be screened can be continuously and stably added to the screening box, and the collection cover can centrally collect and process the unqualified seeds or impurities screened out;

[0023] In order to realize the feeding of crop seeds and at the same time, facilitate the collection of unqualified seeds and impurities;

[0024] As a further improvement of the above technical solution: support columns are fixedly connected to the four corners of the lower end surface of the base plate, and a retaining plate is fixedly connected to the lower end surface of the support column, and retaining holes are opened at the four corners of the retaining plate.

[0025] The beneficial effects of this improvement are: by using the support column and the retaining plate, the bottom plate can be supported to ensure the stability of the bottom plate, and the retaining holes on the retaining plate can fix the retaining plate to ensure that the screening device will not be displaced at will during use;

[0026] In order to fix the screening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 An isometric structural schematic diagram provided for the utility model;

[0028] Figure 2 A top view provided for the utility model;

[0029] Figure 3 The utility model provides Figure 2 The three-dimensional cross-section view at AA in the middle;

[0030] Figure 4 The utility model provides Figure 2 A three-dimensional cross-section view at the middle BB;

[0031] Figure 5 The utility model provides Figure 4 The enlarged view of point A in the middle;

[0032] Figure 6 A front view provided for the utility model;

[0033] Figure 7 The utility model provides Figure 6 A three-dimensional cross-section at the center CC;

[0034] Figure 8 The utility model provides Figure 7 Enlarged view of point B in the middle.

[0035] In the figure, 1, screening box; 11, positioning plate; 12, vibration motor; 13, slot; 14, mounting frame; 15, limit frame; 16, screen; 17, positioning block; 18, locking hole; 19, locking column; 20, connecting plate; 21, pulling rod; 22, fixing block; 23, tension spring; 31, buffer column; 32, fixing column; 33, buffer slot; 34, bottom plate; 35, movable slot; 36, buffer spring; 37, supporting spring; 41, connecting slot; 42, connecting rod; 51, guide rod; 61, limit strip; 62, lifting handle; 71, feed hopper; 72, collecting cover; 73, collecting hopper; 81, supporting column; 82, fixing plate; 83, fixing hole. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0037] like Figures 1 to 8As shown, a screening device for crop seed production provided by an embodiment of the utility model comprises a screening box 1, both sides of the screening box 1 are fixedly connected with positioning plates 11, the upper end faces of the positioning plates 11 are fixedly connected with a vibration motor 12, the two positioning plates 11 can fix the respective corresponding vibration motors 12 to ensure the stability of the vibration motor 12, one side of the screening box 1 is provided with a slot 13, a mounting frame 14 is movably connected in the slot 13, the slot 13 can connect the mounting frame 14 with the screening box 1, a limiting frame 15 is fixedly connected to the inner wall of the mounting frame 14, a screen 16 is movably connected to the upper end face of the limiting frame 15, the limiting frame 15 can limit the screen 16 to ensure the stability of the screen 16, a positioning block 17 is fixedly connected to one side of the mounting frame 14, and the positioning block 17 is fixedly connected to the fixing block 17. The lower end surface of the positioning block 17 is provided with a locking hole 18, and a locking column 19 is movably connected in the locking hole 18. The bottom end of the locking column 19 is fixedly connected to a connecting plate 20, and the lower end surface of the connecting plate 20 is fixedly connected to a pulling rod 21. A fixing block 22 is slidably connected to the outer wall of the pulling rod 21, and the fixing block 22 is fixedly connected to the screening box 1. A tension spring 23 is sleeved on the outer surface of the pulling rod 21, and the two ends of the tension spring 23 are respectively fixedly connected to the connecting plate 20 and the fixing block 22. The docking of the locking column 19 with the locking hole 18 can fix the installation frame 14. At the same time, the pulling of the pulling rod 21 causes the connecting plate 20 to move downward with the pulling rod 21, so that the locking column 19 moves with the connecting plate 20, and the spring is squeezed to make the locking column 19 and the locking hole 18 quickly engage. The sieving box 1 can be disassembled to facilitate quick disassembly of the mounting frame 14. Buffer columns 31 are fixedly connected at the four corners of the lower end surface of the screening box 1. A fixed column 32 is slidably connected to the outer wall of the buffer column 31. A buffer groove 33 is provided in the fixed column 32. The bottom ends of multiple fixed columns 32 are fixedly connected to a bottom plate 34. A movable groove 35 is provided at the center of the bottom plate 34. A buffer spring 36 is sleeved on the outer surface of the buffer column 31. The two ends of the buffer spring 36 are respectively fixedly connected to the screening box 1 and the fixed column. A support spring 37 is provided in the buffer groove 33. The support spring 37 is fixedly connected to the buffer column 31. The four buffer columns 31 and the corresponding fixed columns 32 are used in coordination to make the buffer column 31 slide in the buffer groove 33. The four buffer springs 36 and the four support springs 37 are The buffer column 31 can be supported and buffered to ensure the stability of the screening box 1 during the vibration screening process. Connecting grooves 41 are provided on the inner walls on both sides of the slot 13. Connecting rods 42 are movably connected in the connecting grooves 41. The connecting rods 42 are fixedly connected to the mounting frame 14. The use of the two connecting grooves 41 and the two connecting rods 42 can enable the mounting frame 14 to be quickly docked with the screening box 1, so that the mounting frame 14 can be stably installed in the slot 13. Two symmetrical guide rods 51 are fixedly connected to the lower end surface of the connecting plate 20. The guide rods 51 are slidably connected to the fixed block 22. The two guide rods 51 can guide the connecting plate 20 to ensure that the locking column 19 always moves vertically up and down with the connecting plate 20, so that the locking column 19 and the locking hole 18 can be accurately docked.The inner walls on both sides of the screening box 1 are fixedly connected with limit strips 61, and the lower end faces of the limit strips 61 are movably connected with a lifting handle 62, and the lifting handle 62 is fixedly connected to the screen 16. The two limit strips 61 can limit the corresponding lifting handles 62 to ensure the stability of the screen 16 during the screening process. The upper end face of the screening box 1 is fixedly connected with a feed hopper 71, and the lower end face of the screening box 1 is fixedly connected with a collecting cover 72, and the collecting cover 72 is movably connected to the bottom plate 34. A collecting hopper 73 is fixedly connected inside the screening box 1, and the collecting hopper 73 is connected to the collecting cover 72. The feed hopper 71 can be used to collect the crop seeds to be screened. The conveying and collecting bucket 73 can guide the screened impurities and unqualified seeds, and the collecting cover 72 can collect the screened impurities and unqualified seeds. The four corners of the lower end surface of the bottom plate 34 are fixedly connected with support columns 81, and the lower end surface of the support column 81 is fixedly connected with a fixing plate 82. The four corners of the fixing plate 82 are provided with fixing holes 83. The use of four support columns 81 and four fixing plates 82 can support the bottom plate 34 to ensure the stability of the entire screening device. The fixing holes 83 can fix the fixing plate 82 to prevent the screening device from being sufficiently stable and will not be randomly displaced during the vibration screening process.

[0038] The working principle and use process of the utility model are as follows: when in use, first, the crop seeds to be screened are transported to the screening box 1 through the feed hopper 71, and all of them fall on the screen 16 in the installation frame 14. Under the action of the two vibration motors 12, the screening box 1 is vibrated, and the four buffer columns 31 cooperate with the use of the corresponding buffer springs 36 and support springs 37 to make the screening box 1 vibrate stably, and the crop seeds are quickly screened. The screened impurities and unqualified seeds all leak down and are collected and processed in a centralized manner through the collection cover 72. After the screening is completed, the connecting plate 20 is pulled by the pulling rod 21 to disengage the locking column 19 from the locking hole 18 on the lower end face of the positioning block 17, and the installation frame 14 is pulled out of the slot 13. , the seeds that have been screened are collected and processed centrally. When the screen 16 needs to be replaced or other seeds need to be screened, the two lifting handles 62 can be used to pull the screen 16 upward to take out the screen 16, and the new screen 16 can be installed in the installation frame 14. The screening is limited by the limiting tube, and the connecting rods 42 on both sides of the installation frame 14 are connected to the connecting grooves 41 on both sides of the slot 13. During the connection process, the locking column 19 is moved downward again by pulling the rod 21 to leave enough space for the installation of the installation frame 14. After the installation frame 14 is completely connected to the screening box 1, the tension spring 23 rebounds quickly to connect the locking column 19 with the locking hole 18, thereby fixing the installation frame 14, thereby realizing the use process of the entire screening device.

[0039] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screening device for crop seed production, comprising a screening box (1), characterized in that: Both sides of the screening box (1) are fixedly connected with positioning plates (11), the upper end surface of the positioning plates (11) is fixedly connected with a vibration motor (12), one side of the screening box (1) is provided with a slot (13), a mounting frame (14) is movably connected in the slot (13), and a limiting frame (15) is fixedly connected to the inner wall of the mounting frame (14); The upper end surface of the limit frame (15) is movably connected with a screen (16), and one side of the installation frame (14) is fixedly connected with a positioning block (17), and the lower end surface of the positioning block (17) is provided with a locking hole (18), and a locking column (19) is movably connected in the locking hole (18), and the bottom end of the locking column (19) is fixedly connected with a connecting plate (20), and the lower end surface of the connecting plate (20) is fixedly connected with a pulling rod (21), and the outer wall of the pulling rod (21) is slidably connected with a fixing block (22), and the fixing block (22) is fixedly connected to the screening box (1), and the outer surface of the pulling rod (21) is sleeved with a tension spring (23), and the two ends of the tension spring (23) are respectively fixedly connected to the connecting plate (20) and the fixing block (22).

2. A screening device for crop seed production according to claim 1, characterized in that: The four corners of the lower end surface of the screening box (1) are fixedly connected with buffer columns (31), the outer wall of the buffer column (31) is slidably connected with a fixed column (32), a buffer groove (33) is provided in the fixed column (32), the bottom ends of the plurality of fixed columns (32) are commonly fixedly connected with a bottom plate (34), a movable groove (35) is provided at the center of the bottom plate (34), a buffer spring (36) is sleeved on the outer surface of the buffer column (31), the two ends of the buffer spring (36) are respectively fixedly connected to the screening box (1) and the fixed column, a support spring (37) is provided in the buffer groove (33), and the support spring (37) is fixedly connected to the buffer column (31).

3. A screening device for crop seed production according to claim 1, characterized in that: Connecting grooves (41) are provided on the inner walls on both sides of the slot (13), and connecting rods (42) are movably connected in the connecting grooves (41), and the connecting rods (42) are fixedly connected to the installation frame (14).

4. A screening device for crop seed production according to claim 1, characterized in that: Two symmetrical guide rods (51) are fixedly connected to the lower end surface of the connecting plate (20), and the guide rods (51) are slidably connected to the fixed block (22).

5. The screening device for crop seed production according to claim 1, characterized in that: Limiting strips (61) are fixedly connected to the inner walls on both sides of the screening box (1), and the lower end surfaces of the limiting strips (61) are movably connected to lifting handles (62), and the lifting handles (62) are fixedly connected to the screening mesh (16).

6. A screening device for crop seed production according to claim 2, characterized in that: The upper end surface of the screening box (1) is fixedly connected to a feed hopper (71), the lower end surface of the screening box (1) is fixedly connected to a collecting hood (72), the collecting hood (72) is movably connected to the bottom plate (34), and a collecting hopper (73) is fixedly connected inside the screening box (1), the collecting hopper (73) is in communication with the collecting hood (72).

7. The screening device for crop seed production according to claim 2, characterized in that: The bottom plate (34) is fixedly connected to support columns (81) at the four corners of the lower end surface, the support columns (81) are fixedly connected to a retaining plate (82) at the lower end surface, and the retaining plate (82) is provided with retaining holes (83) at the four corners.

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