A threshing protection assembly and a paddy thresher

Abstract

The utility model relates to rice threshing technical field, concretely provides a kind of threshing protective assembly and rice thresher, and threshing protective assembly includes fixed support and movable support, wherein: fixed support is used to fixedly connect the grain storage box of rice thresher, and fixed support has clamping part one;Movable support is elastically connected in fixed support by elastic element, and movable support has foot pedal part and clamping part two, clamping part two is located above clamping part one and forms the clamping space for accommodating rice stem between clamping part one, and the foot of user exerts force on movable support by foot pedal part, to make clamping part one and clamping part two mutually close or away from each other.The utility model can tightly clamp rice stem by the two clamping parts of threshing protective assembly in the rice stem threshing process, prevent the pulling of beating part on cylinder to rice stem, and cause the hand of user together with rice stem to be rolled into grain storage box, to improve the use safety of rice thresher.

Description

Technical Field

[0001] This utility model relates to the field of rice threshing technology, specifically a threshing protection component 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 has 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 is prone to problems. The rice stalks can easily get caught in the striking part made of bent wire, and the drum rotates very quickly. If the user does not release the stalks in time, it could lead to a safety accident (for example, the user's hand gripping the stalks could be caught in the grain storage bin). Therefore, the rice thresher with the above-mentioned structure poses certain safety hazards during actual operation. To address these issues, this utility model proposes a threshing protection component and a rice thresher with enhanced safety. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art and provide a threshing protection component and a rice thresher. The two clamping parts of the threshing protection component can tightly clamp the rice stalks, preventing the user's hand and the rice stalks from being pulled into the grain storage box by the striking part on the roller, thereby improving the safety of using the rice thresher.

[0006] To achieve the above objectives, this utility model provides a threshing protection component and a rice threshing machine 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 protection component is provided for installation at the inlet of a rice threshing machine. The threshing protection component includes a fixed bracket and a movable bracket, wherein:

[0009] The fixed bracket is used to fix the rice storage box of the rice thresher, and the fixed bracket has a clamping part one; the movable bracket is elastically connected to the fixed bracket through an elastic element, and the movable bracket has a foot pedal part and a clamping part two. The clamping part two is located above the clamping part one and forms a clamping space for accommodating rice straw between them. The user's foot applies force to the movable bracket through the foot pedal part, so that the clamping part one and the clamping part two move closer or further apart.

[0010] Optionally, one side of the clamping part extends horizontally to form a supporting part, the length of which is 1 / 3 to 1 / 2 of the length of the clamping part.

[0011] Optionally, the free end of the supporting part is bent upward to form a guide part, and an inlet for rice straw to pass through is formed between the guide part and the clamping part two.

[0012] Optionally, anti-slip structures are provided on opposite sides of the clamping part one and the clamping part two to increase the friction between the two clamping parts and the rice straw.

[0013] Optionally, the fixed bracket further has a connecting part one, and the clamping part one is connected to the grain storage box through the connecting part one; the movable bracket further has a connecting part two, the connecting part two is slidably connected to the connecting part one, the clamping part two is disposed at the first end of the connecting part two, and the foot pedal is disposed at the second end of the connecting part two.

[0014] Optionally, the clamping part one is rotatably connected to the connecting part one about the axis X, and the second end of the connecting part two is rotatably connected to the connecting part one about the axis X.

[0015] Optionally, a handle is fixedly provided on one side of the clamping part facing away from the grain storage box, and the handle is a rod-shaped component.

[0016] Optionally, a limiting platform is provided at one end of the connecting part 1 away from the clamping part 1, and the elastic element is a spring. The spring is disposed between the second end of the connecting part 2 and the limiting platform, or between the clamping part 1 and the clamping part 2.

[0017] Optionally, the first connecting part includes a longitudinal rod and a transverse rod. The first end of the longitudinal rod is connected to the first clamping part, and the second end of the longitudinal rod is connected to the second end of the second connecting part. One end of the transverse rod is connected to the longitudinal rod, and the other end of the transverse rod is provided with a flange. The flange is connected to the grain storage box by screws.

[0018] According to another aspect of the present invention, a rice threshing machine is provided, comprising a rice storage bin, a drum, a drive unit, and a threshing protection assembly as described above, wherein:

[0019] The grain storage box has an inlet;

[0020] The threshing protection component is installed at the inlet of the grain storage box;

[0021] The roller is rotatably mounted inside the grain storage bin;

[0022] The drive device is used to drive the drum to rotate.

[0023] Compared with the prior art, this utility model provides a threshing protection component and a rice thresher, which has the following beneficial effects:

[0024] 1. In the process of rice threshing, the two clamping parts of the threshing protection component can tightly clamp the rice straw, preventing the user's hand and the rice straw from being pulled into the grain storage box due to the pulling of the rice straw by the striking part on the roller, thereby improving the safety of using the rice threshing machine.

[0025] 2. By setting a support part on one side of the clamping part, the front end of the rice straw is placed in front of the clamping space of the two clamping parts. The rice straw can be first pressed against the support part of the clamping part and then pushed into the clamping space. This ensures that all rice straws can enter the clamping space smoothly, further improving the safety of the rice thresher.

[0026] 3. By setting a guide part at the free end of the support part, the side opening of the clamping space can be changed to the form of an upper opening, which makes it convenient for users to place rice straw on the support part.

[0027] 4. In this utility model, the clamping part one is rotatably connected to the connecting part one about the axis X, and the second end of the connecting part two is rotatably connected to the connecting part one about the axis X. This allows the clamping part one, the clamping part two, and the connecting part two to rotate about the axis X on the connecting part one, thereby adjusting the angle of the rice straw, increasing the contact opportunity between the rice straw and the striking part on the drum, and thus improving the threshing efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the threshing protection component of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the fixing bracket of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the movable support of this utility model;

[0031] Figure 4 This is a schematic diagram of the threshing protection assembly of the present invention when the spring is set between clamping part one and clamping part two;

[0032] Figure 5 This is a schematic diagram of the structure of the rice thresher of this utility model.

[0033] In the diagram: 100, grain storage bin; 110, bin body; 120, cover; 130, feed inlet; 200, roller; 210, drive shaft; 220, striking part; 300, diesel engine; 400, threshing protection assembly; 410, fixed bracket; 411, clamping part one; 412, support part; 413, guide part; 414, connecting part one; 4140, longitudinal rod; 4141, transverse rod; 415, hand-held part; 416, limiting platform; 420, movable bracket; 421, foot pedal; 422, clamping part two; 423, connecting part two; 4230, slider; 430, feed inlet; 440, anti-slip protrusion or depression; 450, spring. Detailed Implementation

[0034] 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.

[0035] Example: Please refer to Figures 1 to 5 According to one aspect of an embodiment of the present invention, a threshing protection component is provided for installation at the inlet 130 of a rice thresher. The threshing protection component 400 includes a fixed bracket 410 and a movable bracket 420, wherein:

[0036] The fixed bracket 410 is used to fix the rice storage box 100 of the rice thresher. The fixed bracket 410 has a clamping part 411. The movable bracket 420 is elastically connected to the fixed bracket 410 through an elastic element. The movable bracket 420 has a foot pedal 421 and a clamping part 422. The clamping part 422 is located above the clamping part 411 and forms a clamping space for accommodating rice straw between the clamping part 411 and the clamping part 411. The user's foot applies force to the movable bracket 420 through the foot pedal 421 to make the clamping part 411 and the clamping part 422 move closer or further apart.

[0037] In one embodiment, both clamping part 411 and clamping part 422 can be plate-shaped structures. The plate-shaped clamping parts have a larger contact surface when clamping the rice straw, making the rice straw less prone to loosening. The fixed bracket 410 and the movable bracket 420 can both be made of steel. The fixed connection between the fixed bracket 410 and the rice storage box 100 of the rice thresher includes, but is not limited to, welding and snap-fitting.

[0038] The threshing protection component 400 with the above structure is fixedly installed at the inlet 130 of the rice thresher with a built-in high-speed rotating drum 200. The user holds the rice stalk to be threshed and places the front end of the stalk between the two clamping parts (clamping part one 411 and clamping part two 422). The rice ear at the front end of the stalk is placed above the drum 200 of the rice thresher. (It should be noted that at this moment, the rice stalk should be as close as possible to clamping part one 411 to ensure that the rice ear at the front end of the stalk will not come into contact with the striking part 220 of the drum 200 before the stalk is clamped by the two clamping parts.) At this time, the user's hand holding the rice stalk is positioned with the two clamping parts facing away from each other. On one side of the roller 200, the user steps on the foot pedal 421, using their body weight to apply downward pressure to the movable support 420. At this time, the rice stalks are clamped between the two clamping parts, and the rice ears at the front end of the stalks are also pressed downward onto the roller 200. The rice is threshed using the striking part 220 on the outside of the roller 200. During this process, because the two clamping parts of the threshing protection component 400 tightly clamp the rice stalks, it can prevent the user's hand and the rice stalks from being pulled into the grain storage box 100 during the threshing process due to the striking part 220 on the roller 200 pulling on the rice stalks, thereby improving the safety of using the rice thresher.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, a support portion 412 is formed on one side of the clamping portion 411 extending in a horizontal direction, and the length of the support portion 412 is 1 / 3 to 1 / 2 of the length of the clamping portion 411.

[0040] In one embodiment, the support portion 412 and the clamping portion 411 can be an integral structure. In another embodiment, the support portion 412 and the clamping portion 411 can also be two separate components fixed together by welding.

[0041] By providing a support portion 412 on one side of the clamping portion 411, the front end of the rice straw can be placed before the clamping space of the two clamping portions. The rice straw can be first pressed against the support portion 412 of the clamping portion 411 before being pushed into the clamping space. This ensures that all rice straws smoothly enter the clamping space, further improving the safety of the rice thresher. In one embodiment, to make it easier for the rice straw to enter the clamping space on the support portion 412, the clamping portion 422 has a chamfer on the side near the support portion 412.

[0042] like Figure 1 and Figure 2 As shown, in some embodiments, the free end of the support portion 412 is bent upward to form a guide portion 413, and an inlet 430 for rice straw to pass through is formed between the guide portion 413 and the clamping portion 422.

[0043] In one embodiment, the guide portion 413 is formed by bending the end of the support portion 412. In another embodiment, the support portion 412 and the guide portion 413 may also be two separate components fixedly connected together by welding.

[0044] By providing a guide portion 413 at the free end of the support portion 412, the side opening of the clamping space can be changed to an upper opening, making it easier for the user to place rice straw on the support portion 412. In addition, to make it easier for the rice straw to enter the feed inlet 430, the included angle between the guide portion 413 and the support portion 412 can be set to an obtuse angle (>90°).

[0045] like Figure 1 and Figure 2 As shown, in some embodiments, anti-slip structures are provided on the opposite sides of clamping part 411 and clamping part 422 to increase the friction between the two clamping parts and the rice straw.

[0046] In one embodiment, the anti-slip structure is an anti-slip protrusion or recess 440 provided on the clamping part 1 411 and the clamping part 2 422. The direction of the anti-slip protrusion or recess 440 is perpendicular to the placement direction of the rice straw, which can further improve the anti-slip effect. In another embodiment, the anti-slip structure can also be a rubber pad or a rubber coating made of rubber material.

[0047] By providing anti-slip structures on clamping part 1 411 and clamping part 2 422, the friction between the rice straw and the two clamping parts can be increased, thereby clamping the rice straw more firmly.

[0048] like Figure 2 and Figure 3 As shown, in some embodiments, the fixed bracket 410 also has a connecting part 414, and the clamping part 411 is connected to the grain storage box 100 through the connecting part 414; the movable bracket 420 also has a connecting part 423, the connecting part 423 is slidably connected to the connecting part 414, the clamping part 422 is disposed at the first end of the connecting part 423, and the foot pedal 421 is disposed at the second end of the connecting part 423.

[0049] In one embodiment, both the first connecting part 414 and the second connecting part 423 can be circular rod-shaped structures. An annular slider 4230 can be welded to the second end of the second connecting part 423. The slider 4230 is movably sleeved on the outside of the first connecting part 414. The second clamping part 422 is welded to the first end of the second connecting part 423, and the foot pedal part 421 is welded to the slider 4230 at the second end of the second connecting part 423.

[0050] By setting the first connecting part 414 and the second connecting part 423, the fixed bracket 410 and the grain storage box 100 can be fixed, and the movable bracket 420 can be slidably connected to the fixed bracket 410 in a vertical direction.

[0051] like Figure 1 As shown, in some embodiments, clamping part 411 is rotatably connected to connecting part 414 about axis X, and the second end of connecting part 423 is rotatably connected to connecting part 414 about axis X.

[0052] Through the above design, the clamping part 411, the clamping part 422 and the connecting part 423 can rotate around the axis X on the connecting part 414, so that the angle of the rice straw can be adjusted, increasing the contact opportunity between the rice straw and the striking part 220 on the drum 200, thereby improving the threshing efficiency.

[0053] like Figure 1 and Figure 2 As shown, in some embodiments, a handle 415 is fixedly provided on the side of the clamping part 411 facing away from the grain storage box 100, and the handle 415 is a rod-shaped member.

[0054] In one embodiment, the handle 415 can be fixed to the side of the clamping part 411 by welding; the handle 415 faces the middle of the clamping space.

[0055] By providing a handle 415 with a rod-shaped structure on the clamping part 411, the rice straw can be clamped between the two clamping parts. The user can then hold the rice straw together with the handle 415 by hand. The handle 415 allows for better control of the rotation of the clamping part 411, the clamping part 422, and the connecting part 423, making it easier to adjust the angle of the rice straw.

[0056] like Figure 1 and Figure 4 As shown, in some embodiments, a limiting platform 416 is provided at the end of the connecting part 414 away from the clamping part 411, and the elastic element is a spring 450. The spring 450 is provided between the second end of the connecting part 423 and the limiting platform 416, or between the clamping part 411 and the clamping part 422.

[0057] In one embodiment, when the spring 450 is disposed between the clamping part 1 411 and the clamping part 2 422, a limiting groove can be provided on the clamping part 1 411 and the clamping part 2 422, and the two ends of the spring 450 are respectively embedded in the limiting grooves of the clamping part 1 411 and the clamping part 2 422. This can reduce the minimum distance when the clamping part 1 411 and the clamping part 2 422 approach each other, ensuring that the two clamping parts clamp the rice stalk.

[0058] like Figure 2As shown, in some embodiments, the connecting part 414 includes a longitudinal rod 4140 and a transverse rod 4141. The first end of the longitudinal rod 4140 is connected to the clamping part 411, and the second end of the longitudinal rod 4140 is connected to the second end of the connecting part 423. One end of the transverse rod 4141 is connected to the longitudinal rod 4140, and the other end of the transverse rod 4141 is provided with a flange. The flange is connected to the grain storage box 100 by screws.

[0059] In one embodiment, the longitudinal rod 4140 and the transverse rod 4141 are fixed by welding. There are two transverse rods 4141, which are arranged along the axial direction of the longitudinal rod 4140. By providing two transverse rods 4141, the stability of the connection between the connecting part 414 and the grain storage box 100 can be improved.

[0060] By detachably connecting the connecting part 414 to the grain storage box 100, it is convenient to assemble and disassemble the threshing protection assembly 400 and the grain storage box 100 of the rice thresher.

[0061] like Figures 1 to 5 As shown, according to another aspect of the embodiments of the present invention, a rice threshing machine is provided, which includes a grain storage box 100, a drum 200, a drive device, and a threshing protection component 400 as described above, wherein: the grain storage box 100 has an inlet 130; the threshing protection component 400 is installed at the inlet 130 of the grain storage box 100; the drum 200 is rotatably disposed inside the grain storage box 100; and the drive device is used to drive the drum 200 to rotate.

[0062] In one embodiment, the grain storage bin 100 may include a bin body 110 and a cover 120. The top of the bin body 110 is open, and the cover 120 is located on one side of the top opening of the bin body 110. The bottom of the cover 120 is connected to the bin body 110, and the inlet 130 is located on the cover 120. A roller 200 is located at the connection between the bin body 110 and the cover 120. Several rows of striking parts 220 are arranged around the circumference of the roller 200. The striking parts 220 are made of bent iron wire and are V-shaped. Both ends of the striking parts 220 are fixed to the roller 200. Both ends of the roller 200 have drive shafts 210. The drive shafts 210 are rotatably connected to the grain storage bin 100 through bearings. The drive device may be a diesel engine 300 installed outside the grain storage bin 100. One drive shaft 210 extends outside the grain storage bin 100 and is linked to the output end of the diesel engine 300 through a belt. In another embodiment, the drive device may also be an electric motor.

[0063] Since the rice thresher uses the threshing protection component 400 of all the above embodiments, it also has the beneficial effects brought by the threshing protection component 400 of the above embodiments, which will not be described in detail here.

[0064] 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 protection assembly for installation at the inlet (130) of a rice thresher, characterized in that, The threshing protection assembly (400) includes a fixed bracket (410) and a movable bracket (420), wherein: The fixed bracket (410) is used to fix the rice storage box (100) of the rice thresher. The fixed bracket (410) has a clamping part one (411). The movable bracket (420) is elastically connected to the fixed bracket (410) through an elastic element. The movable bracket (420) has a foot pedal part (421) and a clamping part two (422). The clamping part two (422) is located above the clamping part one (411) and forms a clamping space for accommodating rice straw between the clamping part one (411) and the clamping part one (411). The user's foot applies force to the movable bracket (420) through the foot pedal part (421) so that the clamping part one (411) and the clamping part two (422) move closer to or further away from each other.

2. The threshing protection assembly according to claim 1, characterized in that: One side of the clamping part (411) extends horizontally to form a support part (412), the length of which is 1 / 3 to 1 / 2 of the length of the clamping part (411).

3. The threshing protection assembly according to claim 2, characterized in that: The free end of the supporting part (412) bends upward to form a guide part (413), and an inlet (430) for rice straw to pass through is formed between the guide part (413) and the clamping part (422).

4. The threshing protection assembly according to claim 1, characterized in that: Anti-slip structures are provided on the opposite sides of the clamping part one (411) and the clamping part two (422) to increase the friction between the two clamping parts and the rice straw.

5. The threshing protection assembly according to claim 1, characterized in that: The fixed bracket (410) also has a connecting part one (414), the clamping part one (411) is connected to the grain storage box (100) through the connecting part one (414); the movable bracket (420) also has a connecting part two (423), the connecting part two (423) is slidably connected to the connecting part one (414), the clamping part two (422) is disposed at the first end of the connecting part two (423), and the foot pedal (421) is disposed at the second end of the connecting part two (423).

6. The threshing protection assembly according to claim 5, characterized in that: The clamping part one (411) is rotatably connected to the connecting part one (414) about the axis X, and the second end of the connecting part two (423) is rotatably connected to the connecting part one (414) about the axis X.

7. The threshing protection assembly according to claim 6, characterized in that: The clamping part (411) is fixedly provided with a handle (415) on the side facing away from the grain storage box (100), and the handle (415) is a rod-shaped member.

8. The threshing protection assembly according to claim 5, characterized in that: A limiting platform (416) is provided at one end of the connecting part one (414) away from the clamping part one (411). The elastic element is a spring (450). The spring (450) is provided between the second end of the connecting part two (423) and the limiting platform (416), or between the clamping part one (411) and the clamping part two (422).

9. The threshing protection assembly according to claim 8, characterized in that: The first connecting part (414) includes a longitudinal rod (4140) and a transverse rod (4141). The first end of the longitudinal rod (4140) is connected to the first clamping part (411), and the second end of the longitudinal rod (4140) is connected to the second end of the second connecting part (423). One end of the transverse rod (4141) is connected to the longitudinal rod (4140), and the other end of the transverse rod (4141) is provided with a flange. The flange is connected to the grain storage box (100) by screws.

10. A rice threshing machine, characterized in that: It includes a grain storage bin (100), a drum (200), a drive unit, and a threshing protection assembly as described in any one of claims 1 to 9, wherein: The grain storage box (100) has an inlet (130); The threshing protection component (400) is installed at the inlet (130) of the grain storage box (100); The roller (200) is rotatably disposed inside the grain storage box (100); The drive device is used to drive the roller (200) to rotate.

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