A threshing auxiliary structure and a rice thresher

Abstract

This utility model relates to the field of rice threshing technology, specifically a threshing auxiliary structure for installation at the inlet of a rice threshing machine. The threshing auxiliary structure includes a support body and clamping components. The support body connects to the rice storage bin of the rice threshing machine. The clamping components include clamping arms, a pull rod, a connecting rod, an elastic element, and a foot pedal. Two clamping arms are slidably connected to the support body laterally. The pull rod is elastically connected to the support body vertically via the elastic element. The first end of the pull rod is movably connected to the two clamping arms via the connecting rod, and the second end of the pull rod is fixedly connected to the foot pedal. This utility model, by setting a threshing auxiliary structure at the inlet of the rice threshing machine, allows the clamping components of the threshing auxiliary structure to clamp and fix the rice straw during the threshing process, reducing the amount of rice straw mixed in with the rice and lowering the safety risks during threshing.

Description

Technical Field

[0001] This utility model relates to the field of rice threshing technology, specifically to a threshing auxiliary structure and a rice threshing machine. Background Technology

[0002] A rice thresher is an agricultural machine used to separate harvested rice grains from the rice ears. It separates the rice grains from the ears through mechanical forces such as impact, friction, or vibration, thereby improving agricultural production efficiency and reducing the labor intensity of farmers.

[0003] In one existing feasible rice threshing machine, there is a rice storage box for storing rice and a high-speed rotating drum set inside the rice storage box. The outer wall of the drum is provided with a striking part made of bent iron wire. In use, the operator holds the rice stalk part and puts the rice ears at the front end of the rice stalk into the drum inside the rice storage box through the input port. The striking part on the drum is used to strike and separate the rice to achieve the rice threshing operation.

[0004] However, in actual use, the rice thresher with the above-mentioned structure requires users to hold the base of the rice stalks for extended periods, which can easily lead to hand fatigue. Furthermore, the rice stalks can easily get stuck in the striking part made of bent wire, potentially causing the user to lose control of the stalks during threshing, resulting in stalks getting mixed into the rice and making later cleaning difficult, or the user's hand and the stalks being pulled into the grain storage bin, causing a safety accident. To address these problems, this utility model proposes a threshing auxiliary structure and a rice thresher. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art and provide a threshing auxiliary structure and a rice threshing machine. During the threshing process, the rice stalks can be clamped and fixed by the clamping parts of the threshing auxiliary structure, reducing the phenomenon of the hand losing control of the rice stalks and the hand and rice stalks being rolled into the grain storage box together, thereby reducing the situation of rice stalks mixed in with the rice and reducing the safety risks during the threshing process.

[0006] To achieve the above objectives, this utility model provides a threshing auxiliary structure and a rice thresher to solve the problems mentioned in the background art.

[0007] This utility model is achieved through the following technical solution:

[0008] According to one aspect of the present invention, a threshing auxiliary structure is provided for installation at the inlet of a rice thresher. The threshing auxiliary structure includes a support body and a clamping component. The support body is used to connect to the grain storage box of the rice thresher. The clamping component includes clamping arms, a pull rod, a connecting rod, an elastic element, and a foot pedal. The two clamping arms are slidably connected to the support body laterally. The pull rod is elastically connected to the support body vertically via the elastic element. The first end of the pull rod is movably connected to the two clamping arms via the connecting rod, and the second end of the pull rod is fixedly connected to the foot pedal.

[0009] Optionally, each of the clamping arms includes a first clamping part and a second clamping part, the first clamping part being connected to the support body, and the second clamping part being rotatably connected to the first clamping part, forming a clamping space for accommodating rice straw between the second clamping parts of the two clamping arms.

[0010] Optionally, anti-slip structures are provided on opposite sides of the second clamping portions of the two clamping arms to increase the friction between the second clamping portions and the rice straw.

[0011] Optionally, the end of the first clamp away from the support body is provided with a chamfer, and a V-shaped entrance that is wider at the top and narrower at the bottom is formed between the chamfers of the first clamps of the two clamping arms.

[0012] Optionally, the anti-slip structure consists of protrusions evenly distributed on the second clamp.

[0013] Optionally, the support body includes a box body and a cover body. The back and top of the box body are provided with openings, and the front of the box body is provided with a sliding hole. The clamping component is disposed in the box body, the two clamping arms extend from the top opening of the box body, and the foot pedal extends from the sliding hole. The cover body is detachably installed at the back opening of the box body.

[0014] Optionally, a roller and a slider are provided at one end of the clamping arm connected to the support body, and a guide rail that abuts against the roller and a sliding groove that cooperates with the slider.

[0015] According to another aspect of the present invention, a rice threshing machine is provided, comprising a rice storage box, a drum, a drive device, and a threshing auxiliary structure as described above, wherein: the rice storage box has an inlet; the drum is rotatably disposed within the rice storage box; the drive device is used to drive the drum to rotate; and the threshing auxiliary structure is installed at the inlet of the rice storage box.

[0016] Optionally, the drive unit is a diesel engine.

[0017] Optionally, the grain storage box includes a box body and a cover, the roller is disposed inside the box body, the cover covers the roller, and the inlet is disposed on the cover.

[0018] Compared with the prior art, this utility model provides a threshing auxiliary structure and a rice thresher, which has the following beneficial effects:

[0019] 1. This utility model sets a threshing auxiliary structure at the inlet of the rice threshing machine. During the threshing process, the rice stalks can be clamped and fixed by the clamping parts of the threshing auxiliary structure. In this way, even if the user's hand is weak or the rice ears are stuck on the striking part of the drum, it is not easy for the hand to lose control of the rice stalks or for the hand and rice stalks to be rolled into the rice storage box together. This reduces the situation of rice stalks mixed in with the rice and also reduces the safety risks during the threshing process.

[0020] 2. The clamping arms of this utility model include a first clamping part and a second clamping part. Since the second clamping part can rotate relative to the first clamping part, on the one hand, before the rice stalk is clamped by the second clamping parts of the two clamping arms, the rice ears at the front end of the rice stalk can be kept out of contact with the drum. After the rice stalk is clamped by the second clamping parts of the two clamping arms, the rice ears are placed on the drum by rotating the rice stalk, thereby further improving the safety of the threshing process. On the other hand, the user can also press the rice ears at the front end of the rice stalk onto the drum by rotating the rice stalk, thereby improving the threshing effect.

[0021] 3. This utility model reduces the resistance of the clamping arm when it moves laterally on the support body by using rollers, making the movement of the clamping arm smoother. The cooperation between the slider and the groove improves the guidance for the lateral movement of the clamping arm on the support body, making its movement more stable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the threshing auxiliary structure;

[0023] Figure 2 A schematic diagram of the disassembled support structure;

[0024] Figure 3 for Figure 2 A partial structural diagram;

[0025] Figure 4 This is a schematic diagram of a rice thresher.

[0026] In the diagram: 100, grain storage bin; 110, bin body; 120, cover; 121, inlet; 200, roller; 210, striking part; 300, drive device; 400, threshing auxiliary structure; 410, support body; 411, box body; 412, cover; 413, sliding hole; 414, sliding groove; 415, guide rail; 416, partition; 420, clamping arm; 421, first clamping part; 4210, chamfer; 422, second clamping part; 423, rotating shaft; 424, protrusion; 425, roller; 426, slider; 430, pull rod; 431, pressure block; 440, connecting rod; 450, elastic element; 460, foot pedal. Detailed Implementation

[0027] 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.

[0028] Example: Please refer to Figures 1 to 4 According to one aspect of this utility model, a threshing auxiliary structure is provided for installation at the inlet 121 of a rice thresher. The threshing auxiliary structure 400 includes a support body 410 and a clamping component. The support body 410 is used to connect to the rice storage box 100 of the rice thresher. The clamping component includes clamping arms 420, a pull rod 430, a connecting rod 440, an elastic element 450, and a foot pedal 460. The two clamping arms 420 are positioned laterally (i.e.,...) Figure 1 The tie rod 430 is slidably connected to the support body 410 in the left-right direction; the tie rod 430 is connected to the support body 410 in the vertical direction via the elastic element 450. Figure 1 The pull rod 430 is elastically connected to the support body 410 in the vertical direction. The first end of the pull rod 430 is movably connected to the two clamping arms 420 through the connecting rod 440. Specifically, there can be two connecting rods 440. The connecting rod 440 and the pull rod 430, as well as the connecting rod 440 and the clamping arms 420, are rotatably connected by pins. The second end of the pull rod 430 is fixedly connected to the foot pedal 460. Specifically, the foot pedal 460 can be fixed to the pull rod 430 by welding or bolting.

[0029] The threshing auxiliary structure 400 with the above structure is installed at the inlet 121 of the rice thresher. When it is necessary to thresh the rice on the rice stalk, the user needs to hold the rice stalk to be threshed by hand and place it between the two clamping arms 420 of the clamping component. The rice ears at the front end of the rice stalk extend into the grain storage box 100 from the inlet 121 and are placed on the roller 200. Then, the user applies downward pressure to the foot pedal 460 with his foot, driving the pull rod 430 to move downward, causing the elastic element 450 to undergo elastic deformation and store force. The two clamping arms 420 move closer to each other until the rice stalk is tightly clamped, thus achieving the limiting and fixing of the rice stalk. During this period, the rice ears at the front end of the rice stalk will be knocked off by the striking part 210 of the roller 200, thus achieving threshing of the rice. During the threshing process, in addition to the user holding the rice stalk tightly with their hand, the rice stalk will also be fixed by the clamping parts. Therefore, even if the user's hand becomes weak or the rice ears get stuck on the striking part 210, it is not easy for the hand to lose control of the rice stalk or for the hand and rice stalk to be rolled into the grain storage box 100 together. This reduces the situation of rice stalks mixed in with the rice and also reduces the safety risks during the threshing process.

[0030] In the above embodiment, since the time the rice ears are struck by the striking part 210 is before the time the rice stalks are clamped by the clamping part, there is still a risk that the user's hand may lose control of the rice stalks, and that the user's hand may be caught in the grain storage box 100 along with the rice stalks. Therefore, as follows: Figure 3 As shown, in some embodiments, each clamping arm 420 includes a first clamping portion 421 and a second clamping portion 422. The first clamping portion 421 is connected to the support body 410, and the second clamping portion 422 is rotatably connected to the first clamping portion 421. A clamping space for accommodating rice straw is formed between the second clamping portions 422 of the two clamping arms 420.

[0031] In one embodiment, the second clamping part 422 can be in the shape of a circular plate, and a rotating shaft 423 is coaxially fixed at the center of one side of the second clamping part 422. The rotating shaft 423 is rotatably connected to the first clamping part 421 through a bearing.

[0032] With the above configuration, since the second clamping part 422 can rotate relative to the first clamping part 421, on the one hand, before the rice stalk is clamped by the second clamping part 422 of the two clamping arms 420, the rice ears at the front end of the rice stalk can be kept from contacting the roller 200. After the rice stalk is clamped by the second clamping part 422 of the two clamping arms 420, the rice ears are placed on the roller 200 by rotating the rice stalk, thereby further improving the safety of the threshing process.

[0033] On the other hand, users can also improve the threshing effect by rotating the rice stalks to press the rice ears at the front end onto the roller 200.

[0034] To improve the clamping effect of the two second clamps 422 on the rice straw, such as Figure 3 As shown, in some embodiments, anti-slip structures are provided on opposite sides of the second clamping portions 422 of the two clamping arms 420 to increase the friction between the second clamping portions 422 and the rice straw.

[0035] In one embodiment, the anti-slip structure is a series of protrusions 424 evenly distributed on the second clamping portion 422. In another embodiment, the anti-slip structure may also be an anti-slip rubber layer disposed on the second clamping portion 422.

[0036] like Figure 1 and Figure 2 As shown, in some embodiments, the end of the first clamp 421 away from the support body 410 is provided with a chamfer 4210, and a V-shaped entrance that is wider at the top and narrower at the bottom is formed between the chamfers 4210 of the first clamps 421 of the two clamping arms 420. By providing a chamfer 4210 on the first clamp 421, it is helpful for the user to place the rice straw between the two second clamps 422.

[0037] like Figure 1 and Figure 2 As shown, in some embodiments, the support body 410 includes a box body 411 and a cover body 412. The back and top of the box body 411 are provided with openings, and the front of the box body 411 is provided with a sliding hole 413. The clamping component is disposed inside the box body 411, two clamping arms 420 extend from the top opening of the box body 411, and a foot pedal 460 extends from the sliding hole 413. The cover body 412 is detachably installed at the back opening of the box body 411.

[0038] In one embodiment, the box body 411 and the cover body 412 can be steel structures, and the box body 411 and the cover body 412 can be connected by screws or welding; the cover body 412 can be provided with mounting holes, and bolts can be passed through the mounting holes to connect the cover body 412 to the grain storage box 100.

[0039] By assembling the bracket body 410 into a split structure consisting of a box body 411 and a cover body 412, it is convenient to encapsulate the clamping components belonging to the moving structure, and also to facilitate the disassembly and replacement of related structures in the clamping components.

[0040] like Figure 3 As shown, in one embodiment, the elastic element 450 is a spring, a pressure block 431 is fixed to the first end of the pull rod 430, a partition 416 is fixedly disposed inside the housing 411 of the support body 410, the pull rod 430 is movably disposed through the partition 416, and the spring is sleeved on the outside of the pull rod 430, with both ends of the spring abutting against the pressure block 431 and the partition 416 respectively. In another embodiment, the spring can also be disposed between the two clamping arms 420, or between the foot pedal 460 and the support body 410.

[0041] like Figure 1 and Figure 2 As shown, in some embodiments, a roller 425 and a slider 426 are provided at one end of the clamping arm 420 connected to the support body 410. The support body 410 is provided with a guide rail 415 that abuts against the roller 425 and a groove 414 that slides with the slider 426. Specifically, each clamping arm 420 may have one roller 425 on each side, and the support body 410 is provided with two guide rails 415. The connecting rod 440 passes through the gap between the two guide rails 415. Each clamping arm 420 has one slider 426 on each side, and the support body 410 has a groove 414. The slider 426 is embedded in the groove 414 and can slide along the groove 414. The roller 425 reduces the resistance of the clamping arm 420 when it moves laterally on the support body 410, making the movement of the clamping arm 420 smoother. The cooperation between the slider 426 and the groove 414 improves the guidance for the lateral movement of the clamping arm 420 on the support body 410, making its movement more stable.

[0042] like Figure 1 and Figure 4 As shown, according to another aspect of the present invention, a rice threshing machine is provided. The rice threshing machine includes a rice storage box 100, a drum 200, a drive device 300, and a threshing auxiliary structure 400 as described above, wherein: the rice storage box 100 has an inlet 121; the drum 200 is rotatably disposed inside the rice storage box 100; the drive device 300 is used to drive the drum 200 to rotate; and the threshing auxiliary structure 400 is installed at the inlet 121 of the rice storage box 100.

[0043] Since the rice thresher adopts the threshing auxiliary structure 400 of all the above embodiments, it also has the beneficial effects brought by the threshing auxiliary structure 400 of the above embodiments, which will not be described in detail here.

[0044] like Figure 4 As shown, in one embodiment, the drive unit 300 is a diesel engine. In another embodiment, the drive unit 300 may also be a gasoline engine or an electric motor.

[0045] like Figure 4 As shown, the grain storage box 100 includes a box body 110 and a cover 120. A roller 200 is disposed inside the box body 110, and the cover 120 covers the roller 200. An inlet 121 is disposed on the cover 120. By using the cover 120 disposed above the roller 200, the amount of rice splashed around can be reduced, ensuring that most of the rice can fall accurately into the box body 110.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A threshing assisting structure for installation at a feed inlet (121) of a paddy thresher, characterized by, The threshing auxiliary structure (400) includes a support body (410) and a clamping component. The support body (410) is used to connect the grain storage box (100) of the rice thresher. The clamping component includes clamping arms (420), a pull rod (430), a connecting rod (440), an elastic element (450), and a foot pedal (460). The two clamping arms (420) are slidably connected to the support body (410) in the lateral direction. The pull rod (430) is elastically connected to the support body (410) in the vertical direction through the elastic element (450). The first end of the pull rod (430) is movably connected to the two clamping arms (420) through the connecting rod (440), and the second end of the pull rod (430) is fixedly connected to the foot pedal (460).

2. The de-aeration assist structure of claim 1, wherein: Each of the clamping arms (420) includes a first clamping part (421) and a second clamping part (422), the first clamping part (421) being connected to the support body (410), and the second clamping part (422) being rotatably connected to the first clamping part (421), forming a clamping space for accommodating rice straw between the second clamping parts (422) of the two clamping arms (420).

3. The de-aeration assist structure of claim 2, wherein: The two clamping arms (420) are provided with anti-slip structures on opposite sides of the second clamping part (422) to increase the friction between the second clamping part (422) and the rice straw.

4. The de-aeration assist structure of claim 2, wherein: The first clamp (421) has a chamfer (4210) at one end away from the support body (410), and a V-shaped entrance that is wider at the top and narrower at the bottom is formed between the chamfers (4210) of the first clamps (421) of the two clamping arms (420).

5. The de-aeration assist structure of claim 3, wherein: The anti-slip structure consists of protrusions (424) evenly distributed on the second clamp (422).

6. The de-aeration assist structure of claim 1, wherein: The support body (410) includes a box body (411) and a cover body (412). The back and top of the box body (411) are provided with openings. The front of the box body (411) is provided with a sliding hole (413). The clamping component is disposed inside the box body (411). Two clamping arms (420) extend from the top opening of the box body (411). The foot pedal (460) extends from the sliding hole (413). The cover body (412) is detachably installed at the back opening of the box body (411).

7. The de-aeration assist structure of claim 1, wherein: The clamping arm (420) is connected to the support body (410) at one end, which is provided with a roller (425) and a slider (426). The support body (410) is provided with a guide rail that abuts against the roller (425) and a sliding groove (414) that slides with the slider (426).

8. A paddy thresher characterized by comprising: The device includes a grain storage box (100), a roller (200), a drive device (300), and a threshing auxiliary structure as described in any one of claims 1 to 7, wherein: the grain storage box (100) has an inlet (121); the roller (200) is rotatably disposed inside the grain storage box (100); the drive device (300) is used to drive the roller (200) to rotate; and the threshing auxiliary structure is installed at the inlet (121) of the grain storage box (100).

9. The paddy thresher according to claim 8, characterized in that: The driving device (300) is a diesel engine.

10. The paddy thresher as claimed in claim 8, wherein: The grain storage box (100) comprises a box body (110) and a cover body (120), the roller (200) is arranged in the box body (110), the cover body (120) covers the roller (200), and the throwing-in port (121) is arranged on the cover body (120).

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