Novel corn thresher with high safety and stability

Abstract

The utility model relates to the technical field of corn threshing, in particular to a novel high-safety and high-stability corn thresher which comprises a rack assembly, the rack assembly comprises a feeding port, a threshing bin, a sieve plate and a guide plate, the feeding port is fixedly connected to the upper end of the rack assembly, the threshing bin is arranged in the feeding port, and the sieve plate is arranged in the threshing bin. A sieve plate is movably connected to the inner wall of the rack assembly, a guide plate is fixedly connected to the bottom in the rack assembly, a transmission mechanism is arranged on the outer side of the rack assembly, stabilizing assemblies are arranged on the two sides of the sieve plate, and a stabilizing assembly is arranged at the bottom of the rack assembly. Through the arrangement of the stabilizing assembly, when the sieve plate is stressed and vibrates, through double damping of the first spring and the second spring, the influence of vibration on the sieve plate is reduced, the protection effect of damping and buffering on the sieve plate is achieved, the noise influence generated by collision is reduced, and the sieve plate moves up and down repeatedly, so that the vibration is reduced. And the threshed corn can be conveniently screened.

Description

Technical Field

[0001] The utility model relates to the technical field of corn threshing, in particular to a novel corn thresher with high safety and stability. Background Art

[0002] Corn threshing refers to threshing corn ears. Generally, threshing machines are used to thresh the dried corn ears. Most of them are axial flow drum type, and there are also vertical threshing disc type. Because of its high production efficiency, good threshing quality, easy operation, simple structure, strong and durable, reliable operation and convenient use and maintenance, it has been popular among farmers for many years. Since the working environment of the thresher is very harsh, the personnel participating in the operation should be educated on safe operation in advance so that they understand the operating procedures and safety common sense, such as tying sleeves tightly, wearing masks and protective glasses, etc.

[0003] After searching, the patent application number is (202322343088.4), which discloses "a corn thresher", which solves the problem that the feed hopper of the existing corn thresher is generally fixed, and when a large number of corn cobs are poured into the feed hopper, it is easy to cause blockage, and manual assistance is required for the corn cobs to enter the thresher body, thus affecting the threshing efficiency;

[0004] However, the above device has the following problems: since the corn thresher vibrates too much during use, it is easy for parts to be damaged or fasteners to loosen, causing personal injury accidents, and noise is generated during operation, which affects the health of users during long-term use. For this reason, we propose a new type of high-safety and stability corn thresher to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of corn thresher with high safety and stability, so as to solve the problems that the corn thresher proposed in the above background technology vibrates too much during use, it is easy to cause personal injury accidents due to damage of parts or loosening of fasteners, and noise is generated during operation, which affects the health of users with long-term use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel high-safety and high-stability corn thresher, comprising a frame assembly, the frame assembly comprising a feed port, a threshing bin, a screen plate and a guide plate, the upper end of the frame assembly is fixedly connected with the feed port, the threshing bin is arranged in the feed port, the inner wall of the frame assembly is movably connected with the screen plate, the bottom of the frame assembly is fixedly connected with the guide plate, the outer side of the frame assembly is provided with a transmission mechanism, the two sides of the screen plate are provided with stabilizing components, and the bottom of the frame assembly is provided with a stabilizing component; The stabilizing assembly comprises a movable groove, a connecting block, a first spring, a hinged rod, a fixed seat, a connecting rod, a movable ring, a damper and a second spring. Connecting blocks are arranged on the front and rear sides of the screen plate. A movable groove is provided on the inner wall of the frame assembly. A first spring is arranged at the bottom of the connecting block. A damper is arranged in the first spring. A hinged rod is arranged on the inner side of the connecting block. A fixed seat is arranged on the surface of the movable groove. Connecting rods are arranged on both sides of the fixed seat. A movable ring is arranged on the surface of the connecting rod. A second spring is arranged on the inner side of the movable ring.

[0007] Preferably, the transmission mechanism includes a servo motor, a driving wheel, a synchronous belt, a first driven wheel, a second driven wheel, a gear, a disengagement roller and a fan, a servo motor is fixedly mounted on the outer side of the frame assembly, the outer end of the servo motor is fixedly connected to the driving wheel, two groups of synchronous belts are movably connected to the surface of the driving wheel, the other end of the first group of synchronous belts is movably connected to the first driven wheel, and the other end of the second group of synchronous belts is movably connected to the second driven wheel, the inner side of the first driven wheel is fixedly connected to the gear, the inner side of the gear is fixedly connected to the disengagement roller, and the inner side of the second driven wheel is fixedly connected to the fan.

[0008] Preferably, two groups of movable grooves are provided on the front and rear sides of the inner wall of the frame assembly, the front and rear sides of the screen plate are fixedly connected with connecting blocks, the connecting blocks are located in the movable grooves, the bottom of the connecting block is fixedly connected with a damper, the surface of the damper is sleeved with a first spring, the two ends of the first spring are respectively connected to the connecting block and the damper, the inner side of the connecting block is hingedly connected to a hinged rod, two groups of connecting rods are fixedly connected on both sides of the fixed seat, the surface of the connecting rod is movably connected with a movable ring, the other end of the hinged rod is hingedly connected to the movable ring, the inner side of the movable ring is located on the surface of the connecting rod and a second spring movably sleeved, and the two ends of the second spring are respectively against the movable ring and the fixed seat.

[0009] Preferably, the bottom of the frame assembly is fixedly connected with two groups of fixing blocks, the fixing blocks are internally threadedly connected with an adjusting rod, and a stabilizing component is arranged at the bottom of the adjusting rod, and the stabilizing component includes a bottom plate, a first limiting cylinder, a second limiting cylinder, a fixing rod, a first extrusion block, a third spring, a second extrusion block and a fourth spring, the bottom plate is located at the bottom of the adjusting rod, the upper end at the center position of the bottom plate is fixedly connected with the second limiting cylinder, the bottom of the adjusting rod is fixedly connected with the first limiting cylinder, the other end of the second limiting cylinder is inserted into the first limiting cylinder, and the first limiting cylinder A fixing rod is fixedly connected in the cylinder, and the other end of the fixing rod extends into the second limiting cylinder and is connected to the first extrusion block. The third spring is arranged in the second limiting cylinder and is connected to the fixing seat. The second extrusion block is arranged on the outer circumferential surface of the second limiting cylinder and is located in the first limiting cylinder, and the second extrusion block is slidably connected to the fixing rod. The fourth spring is sleeved on the fixing rod and is connected to the second extrusion block. Two groups of guide rods are fixedly connected in the first limiting cylinder, and the guide rods are movably connected to the second extrusion block. Two groups of elastic bellows are fixedly connected to the upper surface of the bottom plate.

[0010] Preferably, a discharge port is provided on the left side of the screen plate and the right side of the guide plate, a movable door is rotatably connected to the opening of the discharge port, and a guide block is fixedly connected to the frame assembly at the lower side of the movable door.

[0011] Preferably, the outer end of the connecting rod is fixedly connected to a limiting ring, and a hole adapted to the connecting rod is provided in the movable ring.

[0012] Preferably, an arc-shaped elastic plate is installed between the outer wall of the first limiting cylinder and the bottom plate, and twenty groups of vents are symmetrically opened on the surface of the elastic bellows.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model arranges a stabilizing component. When the screen plate vibrates under force, the double shock absorption of the first spring and the second spring is used to reduce the influence of the vibration on the screen plate, thereby achieving the protective effect of shock absorption and buffering for the screen plate, reducing the noise influence caused by collision, and repeatedly moving up and down, so as to facilitate the screening of threshed corn and achieve the purpose of screening grains.

[0015] 2. The utility model increases the number of supporting points by setting a stabilizing component, thereby increasing the stability of the device, and utilizes the setting of the third spring and the fourth spring to reduce the vibration generated by the thresher, thereby ensuring the stable operation of the thresher and the safety of the operators, thereby greatly improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural cross-sectional view of the transmission mechanism and the frame assembly of the utility model;

[0019] Figure 3 For this utility model Figure 1 A cross-sectional diagram of the middle frame assembly;

[0020] Figure 4 It is a schematic side cross-sectional view of the structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the stabilizing component of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the stabilizing component of the utility model.

[0023] In the figure: 1. frame assembly; 101. feed port; 102. threshing bin; 103. screen plate; 104. guide plate; 2. transmission mechanism; 201. servo motor; 202. driving wheel; 203. synchronous belt; 204. first driven wheel; 205. second driven wheel; 206. gear; 207. disengagement roller; 208. fan; 3. stabilizing assembly; 301. movable groove; 302. connecting block; 303. first spring; 304. hinge rod; 305. fixing seat ; 306, connecting rod; 307, movable ring; 308, damper; 309, second spring; 4, fixed block; 5, adjusting rod; 6, stabilizing component; 601, bottom plate; 602, first limiting cylinder; 603, second limiting cylinder; 604, fixing rod; 605, first extrusion block; 606, third spring; 607, second extrusion block; 608, fourth spring; 609, guide rod; 610, elastic bellows; 7, discharge port; 8, movable door; 9, guide block. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-6 The utility model provides an embodiment: a novel high-safety and stability corn thresher, comprising a frame assembly 1, the frame assembly 1 comprising a feed port 101, a threshing bin 102, a sieve plate 103 and a guide plate 104, the upper end of the frame assembly 1 is fixedly connected with the feed port 101, the threshing bin 102 is arranged in the feed port 101, the inner wall of the frame assembly 1 is movably connected with the sieve plate 103, the bottom of the frame assembly 1 is fixedly connected with the guide plate 104, the outer side of the frame assembly 1 is provided with a transmission mechanism 2, the two sides of the sieve plate 103 are provided with a stabilizing assembly 3, and the bottom of the frame assembly 1 is provided with a stabilizing assembly 6; the stabilizing assembly 3 comprises a movable groove 301, a connecting block 302, A first spring 303, an articulated rod 304, a fixed seat 305, a connecting rod 306, a movable ring 307, a damper 308 and a second spring 309, a connecting block 302 is provided on both sides of the front and rear of the screen plate 103, a movable groove 301 is provided on the inner wall of the frame assembly 1, a first spring 303 is provided on the bottom of the connecting block 302, a damper 308 is provided in the first spring 303, an articulated rod 304 is provided on the inner side of the connecting block 302, a fixed seat 305 is provided on the surface of the movable groove 301, connecting rods 306 are provided on both sides of the fixed seat 305, a movable ring 307 is provided on the surface of the connecting rod 306, and a second spring 309 is provided on the inner side of the movable ring 307;

[0026] The device solves the problem that the corn thresher vibrates too much during use, which easily causes personal injury accidents due to damage of parts or loosening of fasteners, and generates noise during operation, which affects the health of users during long-term use, by setting the stabilizing component 3 and the stabilizing component 6.

[0027] Furthermore, the transmission mechanism 2 includes a servo motor 201, a driving wheel 202, a synchronous belt 203, a first driven wheel 204, a second driven wheel 205, a gear 206, a disengagement roller 207 and a fan 208. The servo motor 201 is fixedly installed on the outside of the frame assembly 1. The outer end of the servo motor 201 is fixedly connected to the driving wheel 202. The surface of the driving wheel 202 is movably connected to two groups of synchronous belts 203. The other end of the first group of synchronous belts 203 is movably connected to the first driven wheel 204. The other end of the second group of synchronous belts 203 is movably connected to the second driven wheel 205. The inner side of the first driven wheel 204 is fixedly connected to the gear 206. The inner side of the gear 206 is fixedly connected to the disengagement roller 207. The inner side of the second driven wheel 205 is fixedly connected to the fan 208. Figure 2 As shown, the structure is used to drive the driving wheel 202 to rotate through the servo motor 201, drive the first driven wheel 204 and the second driven wheel 205 to rotate through the synchronous belt 203, thresh the corn inside the threshing bin 102 through the separation roller 207, and blow the attachments on the surface of the threshed corn through the fan 208 to make it fall into the bottom of the guide plate 104.

[0028] Furthermore, two groups of movable grooves 301 are provided on the front and rear sides of the inner wall of the frame assembly 1, and the front and rear sides of the screen plate 103 are fixedly connected with connecting blocks 302, the connecting blocks 302 are located in the movable grooves 301, and the bottom of the connecting block 302 is fixedly connected with a damper 308, and the surface of the damper 308 is sleeved with a first spring 303, and the two ends of the first spring 303 are respectively connected to the connecting block 302 and the damper 308, and the inner side of the connecting block 302 is hingedly connected with a hinge rod 304, and two groups of connecting rods 306 are fixedly connected on both sides of the fixed seat 305, and the surface of the connecting rod 306 is movably connected with a movable ring 307, and the other end of the hinge rod 304 is hingedly connected to the movable ring 307, and the inner side of the movable ring 307 is located on the surface of the connecting rod 306 and is movably sleeved with a second spring 309, and the two ends of the second spring 309 are respectively against the movable ring 307 and the fixed seat 305. Figure 5 As shown, this structure is used when the screen plate 103 is impacted and vibrates, the connecting block 302 moves up and down so that the first spring 303 and the damper 308 are compressed and moved accordingly, and the hinged movable ring 307 is driven to move inward by the hinge rod 304, so that the second spring 309 on the surface of the connecting rod 306 is compressed and deformed by the force, and the double shock absorption of the first spring 303 and the second spring 309 helps to reduce the impact of vibration.

[0029] Furthermore, two groups of fixing blocks 4 are fixedly connected to the bottom of the frame assembly 1, and the fixing blocks 4 are internally threadedly connected to the adjusting rod 5. A stabilizing assembly 6 is arranged at the bottom of the adjusting rod 5. The stabilizing assembly 6 includes a bottom plate 601, a first limiting cylinder 602, a second limiting cylinder 603, a fixing rod 604, a first extrusion block 605, a third spring 606, a second extrusion block 607 and a fourth spring 608. The bottom plate 601 is located at the bottom of the adjusting rod 5, and the upper end of the center position of the bottom plate 601 is fixedly connected to the second limiting cylinder 603, and the bottom of the adjusting rod 5 is fixedly connected to the first limiting cylinder 602, and the other end of the second limiting cylinder 603 is inserted into the first limiting cylinder 602, and the first limiting cylinder 602 is fixedly connected to the first limiting cylinder 602. There is a fixed rod 604, the other end of which extends into the second limiting cylinder 603 and is connected to the first extrusion block 605, the third spring 606 is arranged in the second limiting cylinder 603 and is connected to the fixed seat 305, the second extrusion block 607 is arranged on the outer circumference of the second limiting cylinder 603 and is located in the first limiting cylinder 602, and the second extrusion block 607 is slidably connected to the fixed rod 604, the fourth spring 608 is sleeved on the fixed rod 604 and connected to the second extrusion block 607, two groups of guide rods 609 are fixedly connected in the first limiting cylinder 602, and the guide rods 609 are movably connected to the second extrusion block 607, and the upper surface of the bottom plate 601 is fixedly connected to two groups of elastic bellows 610. Figure 6 As shown, when the device shakes during operation, the first limiting cylinder 602 and the second limiting cylinder 603 slide relative to each other, the first extrusion block 605 squeezes the third spring 606, and the second extrusion block 607 squeezes the fourth spring 608. The third spring 606 and the fourth spring 608 buffer the impact force generated by the shaking, thereby improving the stability effect.

[0030] Furthermore, a discharge port 7 is provided on the left side of the screen plate 103 and the right side of the guide plate 104. A movable door 8 is rotatably connected to the opening of the discharge port 7. A guide block 9 is fixedly connected to the lower side of the movable door 8 and the frame assembly 1. Figure 4 As shown, the structure is used to collect and process materials through the discharge port 7, reduce noise interference through the sealing effect of the movable door 8, and limit the movable door 8 through the guide block 9 so that the movable door 8 can be rotated to a certain angle and be in the same plane with the interior, so as to facilitate the discharge of internal materials.

[0031] Furthermore, the outer end of the connecting rod 306 is fixedly connected to the limit ring, and a hole adapted to the connecting rod 306 is provided in the movable ring 307. Figure 5 As shown, the structure is used to adapt to the connecting rod 306 through the movable ring 307, so that the movable ring 307 can move stably on the surface of the connecting rod 306, and the movable ring 307 is limited by the limiting ring to prevent the movable ring 307 from detaching from the surface of the connecting rod 306.

[0032] Furthermore, an arc-shaped elastic plate is installed between the outer wall of the first limiting cylinder 602 and the bottom plate 601, and twenty groups of vents are symmetrically opened on the surface of the elastic bellows 610. Figure 6 As shown, when the first limiting cylinder 602 and the second limiting cylinder 603 generate relative sliding, the distance between the bottom plate 601 and the first limiting cylinder 602 changes, the bending degree of the arc-shaped elastic plate changes, the elastic bellows 610 expands and contracts, and the arc-shaped elastic plate and the elastic bellows 610 buffer the impact force again, which significantly improves the stability effect. Moreover, when the elastic bellows 610 is compressed, the air inside it is quickly ejected through the vent. When the elastic bellows 610 is stretched and reset, the external air enters the interior through the vent, which can convert the impact force into the kinetic energy of the air, thereby improving the buffering effect.

[0033] Working principle: When used, Figure 2 As shown, corn is poured into the threshing bin 102 through the feed port 101, and the servo motor 201 is started. The servo motor 201 drives the driving wheel 202 to rotate, and the synchronous belt 203 drives the first driven wheel 204 and the second driven wheel 205 to rotate. The gear 206 drives four sets of separation rollers 207 to thresh the corn in the threshing bin 102, and the corn is screened through the sieve plate 103. At the same time, during the screening, Figure 5 As shown in FIG. 1 , when the screen plate 103 is impacted and vibrates, the connecting block 302 moves up and down, causing the first spring 303 and the damper 308 to be compressed and move accordingly, and the hinged movable ring 307 is driven to move inward by the hinge rod 304, so that the second spring 309 on the surface of the connecting rod 306 is compressed and deformed by the force, and the double shock absorption of the first spring 303 and the second spring 309 is helpful to reduce the impact of the vibration, as shown in FIG. Figure 6 As shown, when shaking occurs during operation, the first limiting cylinder 602 and the second limiting cylinder 603 slide relative to each other, the first extrusion block 605 squeezes the third spring 606, and the second extrusion block 607 squeezes the fourth spring 608. The third spring 606 and the fourth spring 608 buffer the impact force generated by the shaking, thereby improving the stability effect. Figure 2 As shown, after screening, the corn falls to the surface of the guide plate 104. When falling, the fan 208 blows the attached materials on the surface of the threshed corn to make it fall to the bottom of the guide plate 104. After threshing is completed, the servo motor 201 is turned off, as shown in FIG. Figure 4 As shown, the movable door 8 is opened and rotated to the surface of the guide block 9 to support the movable door 8, and the materials on the surface of the screen plate 103 and the guide plate 104 are taken out. The above is the entire working principle of the utility model.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A novel corn thresher with high safety and stability, comprising a frame assembly (1), characterized in that: The frame assembly (1) comprises a feed port (101), a threshing bin (102), a sieve plate (103) and a guide plate (104); the upper end of the frame assembly (1) is fixedly connected to the feed port (101); the threshing bin (102) is arranged in the feed port (101); the inner wall of the frame assembly (1) is movably connected to the sieve plate (103); the bottom of the frame assembly (1) is fixedly connected to the guide plate (104); a transmission mechanism (2) is arranged on the outer side of the frame assembly (1); stabilizing components (3) are arranged on both sides of the sieve plate (103); and a stabilizing component (6) is arranged at the bottom of the frame assembly (1); The stabilizing assembly (3) comprises a movable groove (301), a connecting block (302), a first spring (303), a hinge rod (304), a fixing seat (305), a connecting rod (306), a movable ring (307), a damper (308) and a second spring (309). The connecting blocks (302) are arranged on the front and rear sides of the sieve plate (103). The inner wall of the frame assembly (1) is provided with a movable groove (301). The bottom of the connecting block (302) is provided with A first spring (303), wherein a damper (308) is arranged inside the first spring (303), a hinge rod (304) is arranged on the inner side of the connecting block (302), a fixing seat (305) is arranged on the surface of the movable groove (301), connecting rods (306) are arranged on both sides of the fixing seat (305), a movable ring (307) is arranged on the surface of the connecting rod (306), and a second spring (309) is arranged on the inner side of the movable ring (307).

2. A novel high safety and stability corn thresher according to claim 1, characterized in that: The transmission mechanism (2) comprises a servo motor (201), a driving wheel (202), a synchronous belt (203), a first driven wheel (204), a second driven wheel (205), a gear (206), a disengagement roller (207) and a fan (208); the servo motor (201) is fixedly mounted on the outer side of the frame assembly (1); the outer end of the servo motor (201) is fixedly connected to the driving wheel (202); two groups of synchronous belts (203) are movably connected to the surface of the driving wheel (202); the other end of the first group of synchronous belts (203) is movably connected to the first driven wheel (204); the other end of the second group of synchronous belts (203) is movably connected to the second driven wheel (205); the inner side of the first driven wheel (204) is fixedly connected to the gear (206); the inner side of the gear (206) is fixedly connected to the disengagement roller (207); and the inner side of the second driven wheel (205) is fixedly connected to the fan (208).

3. A novel high safety and stability corn thresher according to claim 1, characterized in that: Two groups of movable grooves (301) are provided on the front and rear sides of the inner wall of the frame assembly (1); the front and rear sides of the screen plate (103) are fixedly connected with connecting blocks (302); the connecting blocks (302) are located in the movable grooves (301); the bottom of the connecting block (302) is fixedly connected with a damper (308); the surface of the damper (308) is sleeved with a first spring (303); the two ends of the first spring (303) are respectively connected to the connecting block (302) and the damper (308); the connecting block (302) is fixedly connected to the damper (308); ) is hingedly connected to the inner side of the hinged rod (304), two groups of connecting rods (306) are fixedly connected to the two sides of the fixed seat (305), the surface of the connecting rod (306) is movably connected to a movable ring (307), the other end of the hinged rod (304) is hingedly connected to the movable ring (307), the inner side of the movable ring (307) is located on the surface of the connecting rod (306) and is movably sleeved with a second spring (309), the two ends of the second spring (309) are respectively against the movable ring (307) and the fixed seat (305).

4. A novel high safety and stability corn thresher according to claim 1, characterized in that: The bottom of the frame assembly (1) is fixedly connected with two groups of fixing blocks (4), the fixing blocks (4) are internally threadedly connected with an adjusting rod (5), the bottom of the adjusting rod (5) is provided with a stabilizing assembly (6), the stabilizing assembly (6) comprises a bottom plate (601), a first limiting cylinder (602), a second limiting cylinder (603), a fixing rod (604), a first extrusion block (605), a third spring (606), a second extrusion block (607) and a fourth spring (608), the bottom plate (601) is located at the bottom of the adjusting rod (5), the upper end of the center position of the bottom plate (601) is fixedly connected with the second limiting cylinder (603), the bottom of the adjusting rod (5) is fixedly connected with the first limiting cylinder (602), the other end of the second limiting cylinder (603) is inserted into the first limiting cylinder (602), and the first limiting cylinder (602) is fixedly connected to the first limiting cylinder (602). A fixing rod (604) is connected, the other end of the fixing rod (604) extends into the second limiting cylinder (603) and is connected to the first extrusion block (605), the third spring (606) is arranged in the second limiting cylinder (603) and is connected to the fixing seat (305), the second extrusion block (607) is arranged on the outer circumference of the second limiting cylinder (603) and is located in the first limiting cylinder (602), and the second extrusion block (607) is slidably connected to the fixing rod (604), the fourth spring (608) is sleeved on the fixing rod (604) and is connected to the second extrusion block (607), two groups of guide rods (609) are fixedly connected in the first limiting cylinder (602), and the guide rods (609) are movably connected to the second extrusion block (607), and two groups of elastic bellows (610) are fixedly connected to the upper surface of the bottom plate (601).

5. A novel high safety and stability corn thresher according to claim 1, characterized in that: A discharge port (7) is provided on the left side of the sieve plate (103) and the right side of the guide plate (104). A movable door (8) is rotatably connected to the opening of the discharge port (7). A guide block (9) is fixedly connected to the frame assembly (1) at the lower side of the movable door (8).

6. A novel high safety and stability corn thresher according to claim 1, characterized in that: The outer end of the connecting rod (306) is fixedly connected to a limiting ring, and a hole matching the connecting rod (306) is provided in the movable ring (307).

7. A novel high safety and stability corn thresher according to claim 4, characterized in that: An arc-shaped elastic plate is installed between the outer wall of the first limiting cylinder (602) and the bottom plate (601), and twenty groups of vents are symmetrically opened on the surface of the elastic bellows (610).

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