A seed pretreatment device for rice planting

Abstract

The utility model discloses a seed pretreatment device for rice planting, comprising a fixed frame, a first connecting rod is fixedly provided on one side of the lower end of the fixed frame, a second connecting rod is fixedly provided on one side of the upper end of the fixed frame, a sieve plate is fixedly provided on the upper end of the first connecting rod, one end of the sieve plate close to the second connecting rod is fixedly connected to the second connecting rod, a collecting bin is fixedly provided on the lower end of the sieve plate, a feed hopper is fixedly provided on one side of the upper end of the fixed frame, and a transmission mechanism for driving the sieve plate to shake is provided in the middle of the inner side of the fixed frame. The utility model can perform up and down shaking screening on seeds to provide a better screening effect, and the power generated by the vibration can also be linked to the fan to work, so that the fan generates airflow to suck away the lighter and shrunken seeds, which can further improve the screening effect.

Description

Technical Field

[0001] The utility model relates to the technical field of seed pretreatment devices, in particular to a seed pretreatment device for rice planting. Background Art

[0002] In the prior art, rice seeds are often screened before rice seedling cultivation. Pretreatment of rice seeds can improve the germination rate and uniformity of subsequent rice seedling cultivation. Appropriate pretreatment can make seeds germinate faster and more uniformly, ensuring the consistency of field seedling emergence.

[0003] In the prior art, two methods, air separation and flotation, are commonly used for seed screening. For air separation, for example, a seed pretreatment device for rice planting disclosed in Chinese patent application number 202220522748.8 first screens and then air separates when used. However, screening only drives the screen to move horizontally left and right, and the screening effect is poor. If a large number of seeds and thick seeds are screened at one time, the screen that simply moves left and right cannot screen the seeds in the upper layer. Therefore, an improved seed pretreatment device for rice planting is needed to address this problem. Utility Model Content

[0004] The utility model aims to provide a seed pretreatment device for rice planting to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seed pretreatment device for rice planting, comprising a fixed frame, a first connecting rod is fixedly arranged on one side of the lower end of the fixed frame, a second connecting rod is fixedly arranged on one side of the upper end of the fixed frame, a sieve plate is fixedly arranged on the upper end of the first connecting rod, an end of the sieve plate close to the second connecting rod is fixedly connected to the second connecting rod, a collecting bin is fixedly arranged on the lower end of the sieve plate, a feeding hopper is fixedly arranged on one side of the upper end of the fixed frame, and a transmission mechanism that drives the sieve plate to shake is arranged in the middle part of the inner side of the fixed frame. The transmission mechanism includes a motor, a first pulley, an eccentric wheel, a second pulley, a transmission rod, and a crossbeam. A motor is fixedly arranged on one side of the lower end of the fixed frame, and the first pulley is fixedly arranged on the output shaft end of the motor through a coupling. An eccentric wheel is movably arranged on the middle part of the lower end of the fixed frame through a rotating shaft, and a second pulley is fixedly arranged on one end of the rotating shaft where the eccentric wheel is located. A transmission rod is movably arranged on one side of the surface of the eccentric wheel through a rotating shaft, and a crossbeam is fixedly arranged on the lower end of the second connecting rod, and an end of the transmission rod close to the crossbeam is movably connected to the crossbeam through the rotating shaft.

[0006] Preferably, a dust suction mechanism is provided on one side of the surface of the fixed frame, and the dust suction mechanism includes a volute fan, an air inlet pipe, a dust suction head, and an air outlet. The volute fan is fixedly provided on one side of the surface of the fixed frame, and the air inlet pipe is fixedly provided on one side of the surface of the volute fan. A dust suction head is fixedly provided on the end of the air inlet pipe away from the volute fan, and the dust suction head is provided on the upper end of the screen plate. The interior of the dust suction head is connected to the air inlet end of the volute fan through the air inlet pipe, and an air outlet is fixedly provided on one side of the surface of the volute fan. An air flow can be generated by the dust suction mechanism to suck away lighter and shriveled seeds, thereby further improving the screening effect.

[0007] Preferably, a connecting pipe is provided on the outer surface of the air outlet through a threaded engagement, and a filter bag is fixedly provided on the surface of the connecting pipe. Air can be discharged through the holes on the surface of the filter bag, but the dried seeds or other impurities sucked in and then discharged by the volute fan will be trapped inside the filter bag for collection, thereby facilitating subsequent processing work.

[0008] Preferably, a rotating rod is movably provided on one side of the second pulley through a bearing inside the fixed frame, and a third pulley is fixedly provided in the middle of the rotating rod, and one end of the rotating rod close to the volute fan is fixedly connected to the power input shaft of the volute fan, and a transmission belt is sleeved between the first pulley and the second pulley, and a transmission belt is sleeved between the second pulley and the third pulley, and the first pulley is driven to rotate by the motor, and then the second pulley can be driven to rotate by the transmission belt, and when the second pulley rotates, the eccentric wheel can be driven to rotate. At this time, the screen plate can be driven by the transmission rod to be close to one end of the second connecting rod and continuously shake up and down at high speed, thereby improving the screening effect; and the rotation of the second pulley can drive the third pulley to rotate, thereby driving the rotating rod to rotate, and at this time the rotating rod can drive the volute fan to work, that is, the rotating rod can drive the impeller inside the volute fan to rotate, and since the volute fan is an extremely mature structure in the prior art, the present application document does not introduce too much about the specific internal structure of the volute fan.

[0009] Preferably, a spring is fixedly provided in the middle of the first connecting rod and the second connecting rod, and the first connecting rod and the second connecting rod can be bent by the spring, so that when the eccentric wheel rotates, the transmission rod can drive the screen plate close to one end of the second connecting rod, and continuously shake it up and down at high speed. In this way, the spring allows the first connecting rod and the second connecting rod to deform to cooperate with the movement of the screen plate, so that the screen plate that is continuously shaking up and down can be utilized to improve the screening effect compared with the screen plate that moves horizontally to the left and right.

[0010] Preferably, a first discharge port is fixedly provided on one side of the surface of the sieve plate, and a second discharge port is fixedly provided on one side of the surface of the collecting bin. The sieve plate is a device mainly used to screen seeds. Qualified seeds will remain on the upper end of the sieve plate, while unqualified seeds will pass through the sieve plate to the inside of the collecting bin at the lower end of the sieve plate. In this way, qualified seeds after screening can be discharged through the first discharge port, while dusty, shriveled or broken small unqualified seeds can be discharged through the second discharge port.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model can drive the sieve plate to be close to one end of the second connecting rod through the transmission rod, and continuously shake it up and down at high speed, so as to improve the screening effect; during screening, qualified seeds will remain on the upper end of the sieve plate, while unqualified seeds will leak through the sieve plate to the inside of the collecting bin at the lower end of the sieve plate, so that qualified seeds after screening can be discharged through the first discharge port, and dust, shriveled or broken small unqualified seeds can be discharged through the second discharge port.

[0013] 2. The power generated by the vibration of the utility model can also be linked to the fan to work, so that the fan generates airflow to suck away the lighter and shriveled seeds, which can further improve the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a seed pretreatment device for rice planting according to the utility model;

[0015] Figure 2 This is a side view of a seed pretreatment device for rice planting according to the utility model;

[0016] Figure 3 This is an installation view of an eccentric wheel in a seed pretreatment device for rice planting according to the utility model;

[0017] Figure 4 The utility model is a seed pretreatment device for rice planting Figure 1 Magnified view at A in the middle;

[0018] Figure 5 This is an overall structural view of the second pulley in a seed pretreatment device for rice planting according to the utility model.

[0019] In the figure: 1. fixed frame; 2. first connecting rod; 3. second connecting rod; 4. sieve plate; 5. collecting bin; 6. feed hopper; 7. motor; 8. first pulley; 9. eccentric wheel; 10. second pulley; 11. transmission rod; 12. crossbeam; 13. volute fan; 14. air inlet pipe; 15. dust collector head; 16. air outlet; 17. connecting pipe; 18. filter bag; 19. rotating rod; 20. third pulley; 21. spring; 22. first discharge port; 23. second discharge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a seed pretreatment device for rice planting, comprising a fixed frame 1, a first connecting rod 2 is fixedly arranged on one side of the lower end of the fixed frame 1, a second connecting rod 3 is fixedly arranged on one side of the upper end of the fixed frame 1, a sieve plate 4 is fixedly arranged on the upper end of the first connecting rod 2, an end of the sieve plate 4 close to the second connecting rod 3 is fixedly connected to the second connecting rod 3, a collecting bin 5 is fixedly arranged on the lower end of the sieve plate 4, a feeding hopper 6 is fixedly arranged on one side of the upper end of the fixed frame 1, a transmission mechanism for driving the sieve plate 4 to shake is arranged in the middle part of the inner side of the fixed frame 1, and the transmission mechanism includes an electric The fixed frame 1 comprises a motor 7, a first pulley 8, an eccentric wheel 9, a second pulley 10, a transmission rod 11 and a cross beam 12. The motor 7 is fixedly arranged on one side of the lower end of the fixed frame 1. The output shaft end of the motor 7 is fixedly arranged with the first pulley 8 through a coupling. The middle part of the lower end of the fixed frame 1 is movably provided with an eccentric wheel 9 through a rotating shaft. The second pulley 10 is fixedly arranged on one end of the rotating shaft where the eccentric wheel 9 is located. The transmission rod 11 is movably arranged on one side of the surface of the eccentric wheel 9 through a rotating shaft. The cross beam 12 is fixedly arranged on the lower end of the second connecting rod 3. The end of the transmission rod 11 close to the cross beam 12 is movably connected to the cross beam 12 through a rotating shaft.

[0022] A dust suction mechanism is provided on one side of the surface of the fixed frame 1, and the dust suction mechanism includes a volute fan 13, an air inlet pipe 14, a dust suction head 15, and an air outlet 16. The volute fan 13 is fixedly provided on one side of the surface of the fixed frame 1, and the air inlet pipe 14 is fixedly provided on one side of the surface of the volute fan 13. A dust suction head 15 is fixedly provided on one end of the air inlet pipe 14 away from the volute fan 13, and the dust suction head 15 is provided on the upper end of the sieve plate 4. The inside of the dust suction head 15 is mutually connected with the air inlet end of the volute fan 13 through the air inlet pipe 14, and an air outlet 16 is fixedly provided on one side of the surface of the volute fan 13. The dust suction mechanism can generate airflow to suck away lighter, shriveled seeds, thereby further improving the screening effect;

[0023] The outer surface of the air outlet 16 is provided with a connecting pipe 17 by means of a threaded movably screwed connection, and a filter bag 18 is fixedly provided on the surface of the connecting pipe 17. Air can be discharged through the holes on the surface of the filter bag 18, but the shrunken seeds or other impurities sucked in and then discharged by the volute fan 13 will be trapped in the filter bag 18 for collection, so as to facilitate subsequent processing work;

[0024] A rotating rod 19 is movably provided on one side of the second pulley 10 through a bearing inside the fixed frame 1, and a third pulley 20 is fixedly provided in the middle of the rotating rod 19. The end of the rotating rod 19 close to the volute fan 13 is fixedly connected to the power input shaft of the volute fan 13. A transmission belt is sleeved between the first pulley 8 and the second pulley 10, and a transmission belt is sleeved between the second pulley 10 and the third pulley 20. The first pulley 8 is driven to rotate by the motor 7, and then the second pulley 10 can be driven to rotate by the transmission belt. When the second pulley 10 rotates, The eccentric wheel 9 can be driven to rotate. At this time, the transmission rod 11 can drive the screen plate 4 to be close to one end of the second connecting rod 3, and continuously shake up and down at high speed, so as to improve the screening effect; and the rotation of the second pulley 10 can drive the third pulley 20 to rotate, so as to drive the rotating rod 19 to rotate. At this time, the rotating rod 19 can drive the volute fan 13 to work, that is, the rotating rod 19 can drive the impeller inside the volute fan 13 to rotate. Since the volute fan 13 is a very mature structure in the prior art, the internal specific structure of the volute fan 13 is not described in detail in this application document.

[0025] It should be noted that since the second pulley 10 of the device needs to connect two transmission belts, two pulley mounting grooves are provided on the surface of the second pulley 10. The specific shape of the second pulley 10 can be as follows: Figure 5 As shown;

[0026] The first connecting rod 2 and the second connecting rod 3 are both fixedly provided with a spring 21 in the middle, and the first connecting rod 2 and the second connecting rod 3 can be bent by the spring 21, so that when the eccentric wheel 9 rotates, the transmission rod 11 can drive the screen plate 4 close to one end of the second connecting rod 3, and continuously shake up and down at high speed, so that the spring 21 allows the first connecting rod 2 and the second connecting rod 3 to deform and cooperate with the screen plate 4 to move, so that the screen plate 4 that is constantly shaking up and down can be used to improve the screening effect compared with the screen plate 4 that moves horizontally to the left and right;

[0027] A first discharge port 22 is fixedly provided on one side of the surface of the sieve plate 4, and a second discharge port 23 is fixedly provided on one side of the surface of the collecting bin 5. The sieve plate 4 is mainly used for screening seeds. Qualified seeds will remain on the upper end of the sieve plate 4, while unqualified seeds will pass through the sieve plate 4 and leak into the collecting bin 5 at the lower end of the sieve plate 4. In this way, qualified seeds after screening can be discharged through the first discharge port 22, while dusty, shriveled or broken small unqualified seeds can be discharged through the second discharge port 23.

[0028] Working principle: When using this device, the seeds to be screened are poured into the feed hopper 6, and then the seeds can slowly enter the upper end of the sieve plate 4 from the feed hopper 6. At this time, the motor 7 can be turned on. When the motor 7 is working, it drives the first pulley 8 to rotate, and then the second pulley 10 can be driven to rotate through the transmission belt. When the second pulley 10 rotates, it can drive the eccentric wheel 9 to rotate. At this time, the transmission rod 11 can drive the end of the sieve plate 4 close to the second connecting rod 3, and continuously shake up and down at high speed, so as to improve the screening effect; and when screening, qualified seeds will remain on the upper end of the sieve plate 4, and unqualified seeds will leak through the sieve plate 4 to the inside of the collection bin 5 at the lower end of the sieve plate 4, so that the qualified seeds after screening can be discharged through the first discharge port 22, and dust, shriveled or broken small unqualified seeds can be discharged through the second discharge port 23;

[0029] However, only small and broken seeds and small dust can be screened out by screening, but shriveled but large seeds cannot be screened out; therefore, the application document also provides a dust suction mechanism to cooperate with the screening work;

[0030] When the motor 7 drives the second pulley 10 to rotate, the second pulley 10 can also drive the third pulley 20 to rotate, thereby driving the rotating rod 19 to rotate. At this time, the rotating rod 19 can drive the volute fan 13 to work, that is, the rotating rod 19 can drive the impeller inside the volute fan 13 to rotate, so that the air inside the volute fan 13 is thrown out from the air outlet 16, so that negative pressure is formed inside the volute fan 13, and then the dried seeds on the upper end of the sieve plate 4 can be sucked into the volute fan 13 through the connecting pipe 17 through the dust suction head 15, and then thrown out from the air outlet 16 by the impeller inside the volute fan 13 through the centrifugal force. At this time, air can be discharged through the holes on the surface of the filter bag 18, but the dried seeds or other impurities sucked in and thrown out by the volute fan 13 will be trapped in the filter bag 18 for collection, which can facilitate subsequent processing.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seed pretreatment device for rice planting, comprising a fixed frame (1), characterized in that: A first connecting rod (2) is fixedly arranged on one side of the lower end of the fixed frame (1), a second connecting rod (3) is fixedly arranged on one side of the upper end of the fixed frame (1), a sieve plate (4) is fixedly arranged on the upper end of the first connecting rod (2), one end of the sieve plate (4) close to the second connecting rod (3) is fixedly connected to the second connecting rod (3), a collecting bin (5) is fixedly arranged on the lower end of the sieve plate (4), a feeding hopper (6) is fixedly arranged on one side of the upper end of the fixed frame (1), and a transmission mechanism for driving the sieve plate (4) to vibrate is arranged in the middle of the inner side of the fixed frame (1), the transmission mechanism comprises a motor (7), a first pulley (8), an eccentric wheel (9), a second pulley (10), and a plurality of pulleys (11). A motor (7) is fixedly arranged on one side of the lower end of the fixed frame (1); a first pulley (8) is fixedly arranged on the output shaft end of the motor (7) via a coupling; an eccentric wheel (9) is movably arranged on the middle part of the lower end of the fixed frame (1) via a rotating shaft; a second pulley (10) is fixedly arranged on one end of the rotating shaft where the eccentric wheel (9) is located; a transmission rod (11) is movably arranged on one side of the surface of the eccentric wheel (9) via a rotating shaft; a cross beam (12) is fixedly arranged on the lower end of the second connecting rod (3); and an end of the transmission rod (11) close to the cross beam (12) is movably connected to the cross beam (12) via a rotating shaft.

2. A seed pretreatment device for rice planting according to claim 1, characterized in that: A dust suction mechanism is arranged on one side of the surface of the fixed frame (1), and the dust suction mechanism comprises a volute fan (13), an air inlet pipe (14), a dust suction head (15), and an air outlet (16). The volute fan (13) is fixedly arranged on one side of the surface of the fixed frame (1), the air inlet pipe (14) is fixedly arranged on one side of the surface of the volute fan (13), the dust suction head (15) is fixedly arranged at one end of the air inlet pipe (14) away from the volute fan (13), the dust suction head (15) is arranged on the upper end of the sieve plate (4), the interior of the dust suction head (15) is mutually connected with the air inlet end of the volute fan (13) through the air inlet pipe (14), and the air outlet (16) is fixedly arranged on one side of the surface of the volute fan (13).

3. A seed pretreatment device for rice planting according to claim 2, characterized in that: A connecting pipe (17) is provided on the outer surface of the air outlet (16) by means of a threaded connection, and a filter bag (18) is fixedly provided on the surface of the connecting pipe (17).

4. A seed pretreatment device for rice planting according to claim 2, characterized in that: A rotating rod (19) is movably arranged on one side of the second pulley (10) inside the fixed frame (1), through a bearing, and a third pulley (20) is fixedly arranged in the middle of the rotating rod (19). One end of the rotating rod (19) close to the volute fan (13) is fixedly connected to the power input shaft of the volute fan (13). A transmission belt is sleeved between the first pulley (8) and the second pulley (10), and a transmission belt is sleeved between the second pulley (10) and the third pulley (20).

5. The seed pretreatment device for rice planting according to claim 1, characterized in that: A spring (21) is fixedly arranged at the middle of each of the first connecting rod (2) and the second connecting rod (3).

6. The seed pretreatment device for rice planting according to claim 1, characterized in that: A first discharge port (22) is fixedly provided on one side of the surface of the sieve plate (4), and a second discharge port (23) is fixedly provided on one side of the surface of the collection bin (5).

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