阅读说明：本技术 一种环保用秸秆处理装置及其使用方法 (Environment-friendly straw treatment device and use method thereof ) 是由 祁伟豪 于 2021-01-04 设计创作，主要内容包括：本发明属于环保技术领域,尤其是一种环保用秸秆处理装置及其使用方法,针对现有秸秆粉碎装置无法对秸秆进行充分粉碎的问题,现提出以下方案,包括底板,所述底板底板外壁四角均固定有万向轮,所述底板顶部外壁固定有处理箱,且处理箱顶部和底部内壁位于中间的位置固定有竖板,所述竖板一侧外壁固定有粉碎电机,且粉碎电机远离竖板的一侧外壁转动连接有转杆,所述处理箱顶部和底部之间固定有粉碎箱,且粉碎箱紧贴处理箱一侧内壁。本发明利用独特结构的粉碎刃和弧刃相配合,使进入粉碎箱的秸秆能够被完全粉碎,并且由于粉碎箱的设置,使粉碎刃和弧刃转动时产生吸力和推力,产生的吸力便于秸秆的进料,产生的推力便于碎屑的排料。(The invention belongs to the technical field of environmental protection, and particularly relates to an environment-friendly straw treatment device and a use method thereof. The straw crushing box has the advantages that the crushing blades with unique structures are matched with the arc blades, so that straws entering the crushing box can be completely crushed, and due to the arrangement of the crushing box, the crushing blades and the arc blades generate suction and thrust when rotating, the generated suction is convenient for feeding the straws, and the generated thrust is convenient for discharging scraps.)

1. The environment-friendly straw treatment device comprises a bottom plate (2), universal wheels (1) are fixed at four corners of the outer wall of the bottom plate (2), and the environment-friendly straw treatment device is characterized in that a treatment box (5) is fixed at the outer wall of the top of the bottom plate (2), vertical plates (8) are fixed at positions, located in the middle, of the inner walls of the top and the bottom of the treatment box (5), a crushing motor (10) is fixed at the outer wall of one side of each vertical plate (8), a rotating rod (20) is rotatably connected to the outer wall of one side, far away from the vertical plates (8), of the crushing motor (10), a crushing box (11) is fixed between the top and the bottom of the treatment box (5), the inner wall of one side of the treatment box (5) is tightly attached to the crushing box (11), the rotating rod (20) extends into the crushing box (11), the rotating rod (20) is connected with the crushing box (11) through a rotating shaft, a rotating ring (24) is fixed at one end, extending into the crushing box (11), and swivel (24) outer wall is fixed with a plurality of crushing sword (21), one side that crushing sword (21) are close to and handle case (5) one side inner wall is the tangent plane, one side that crushing sword (21) kept away from and handle case (5) one side inner wall is the inclined plane, the inclined plane of crushing sword (21) is fixed with arc sword (26), and arc sword (26) cambered surface orientation crushing sword (21), it arranges material pipe (12) to be fixed with in crushing case (11) one side outer wall bottom, it is fixed with feedstock channel (9) to handle case (5) one side outer wall, and feedstock channel (9) extend to crushing case (11) inside.

2. The environment-friendly straw treatment device according to claim 1, wherein an extrusion chamber is arranged between the vertical plate (8) and the inner wall of one side of the treatment box (5) far away from the feeding channel (9), and the discharge pipe (12) extends to the interior of the extrusion chamber.

3. The environment-friendly straw treatment device according to claim 1, wherein a groove (4) is formed in the inner wall of one side, away from the feeding channel (9), of the treatment box (5), a rotating motor (14) is fixed to one end of the groove (4), one end of the rotating motor (14) is rotatably connected with a threaded lead screw (15), and the other end of the threaded lead screw (15) is connected with the other end of the groove (4) through a rotating shaft.

4. The environment-friendly straw treatment device according to claim 3, wherein the top and the bottom of the groove (4) are provided with limiting grooves (3), the outside of the threaded lead screw (15) is provided with a fixing block (16), the outer walls of the top and the bottom of the fixing block (16) are respectively fixed with a limiting plate (25), and the two limiting plates (25) are both adapted to the limiting grooves (3).

5. The environment-friendly straw treatment device according to claim 4, wherein an extrusion plate (7) is fixed on the outer wall of one side of the fixed block (16) close to the vertical plate (8), the outer wall of one side of the extrusion plate (7) is in contact with the vertical plate (8), and arc-shaped shovel blocks (13) are fixed on the outer walls of two ends of the vertical plate (8) close to the bottom.

6. The environment-friendly straw treatment device according to claim 5, wherein the inner walls of the bottom and the top of the groove (4) are provided with sliding grooves (6), and the sliding grooves (6) are positioned between the limiting groove (3) and the extrusion plate (7).

7. The environment-friendly straw treatment device according to claim 6, wherein two folding plates (18) are connected between the two sliding grooves (6) in a sliding manner, and one ends of the folding plates (18) opposite to each other are respectively connected with the outer walls of the two ends of the fixing block (16) through bolts.

8. The environment-friendly straw treatment device according to claim 2, wherein the outer walls of two ends of the extrusion bin are provided with automatic discharge doors (22), and the inner wall of one end opposite to the automatic discharge doors (22) is fixed with a pressure sensor (23).

9. The use method of the environment-friendly straw treatment device is characterized by comprising the following steps:

s1: the device is moved to a place needing straw treatment through the universal wheel (1), then the crushing motor (10) is started, the straws are sent into the crushing box (11) from the feeding channel (9) to be crushed,

s2: after the straws enter the crushing box (11), the crushing blade (21) is driven by the crushing motor (10) to rotate rapidly, the straws led in from the feeding channel (9) are crushed, because one side of the crushing blade (21) close to the feeding channel (9) is a tangent plane, one side far away from the feeding channel (9) is an inclined plane, the straws entering the crushing box (11) can be cut off at the first time, the cambered surface of the arc blade (26) faces the crushing blade (21), the crushed straw chips are pressed by the arc blade (26), the straw chips are prevented from scattering around, if the straws are not completely crushed after passing through the crushing blade (21), the size is large, the arc blade (26) can cut and crush the straws again, the crushed straws fall into the bottom of the crushing box (11), because the structure formed by the crushing blade (21) and the arc blade (26) generates suction at the feeding channel (9) when rotating rapidly, the efficiency of straw entering the crushing box (11) is increased, meanwhile, the pushing force is generated at the position of the discharge pipe (12), the completely crushed straw chips are quickly discharged out of the crushing box (11) and guided into the extrusion bin, the problem of blockage caused by accumulation of the straw chips in the crushing box (11) is avoided,

s3: when the chips are sent into the extrusion bin through the discharging pipe (12), the rotating motor (14) drives the threaded lead screw (15) to rotate, under the limitation of the two limiting grooves (3) and the limiting plates (25), the fixing block (16) can move back and forth along the threaded lead screw (15), then the extrusion plate (7) is driven to move inside the extrusion bin, when the extrusion plate (7) moves towards one end along the threaded lead screw (15), all the guided straw chips are extruded between the extrusion plate (7) and the inner wall of one side of the extrusion bin, and then extrusion molding is carried out, the arc-shaped shovel block (13) can shovel all the chips at the bottom of the extrusion bin, when the pressure sensor (23) bears certain pressure, the automatic discharging door (22) is controlled to be opened, the extruded chips are discharged out of the device, and meanwhile, the pressure sensor (23) controls the rotating motor (14) to rotate again, make stripper plate (7) extrusion opposite side just from arranging the leading-in piece of material pipe (12), so repeatedly, the piece that will leading-in extrusion storehouse is whole to be extruded into the piece and is discharged, and fixed block (16) horizontal slip can be followed in folded sheet (18), avoids the straw piece to enter into inside device that leads to recess (4) to damage of recess (4).

Technical Field

The invention relates to the technical field of environmental protection, in particular to an environmental-protection straw treatment device and a use method thereof.

Background

The straw is a general term of stem leaf (ear) part of mature crops. Typically refers to the remainder of the wheat, rice, corn, potatoes, oilseed rape, cotton, sugar cane and other crops (typically roughages) after harvesting the seed. More than half of the products of crop photosynthesis exist in the straws, and the straws are rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, are multipurpose renewable biological resources, and are also coarse feed.

The existing straw treatment mode is mainly to crush the straw, the straw is used as animal feed or is bought into the land again to increase the weight of the land, the environment is prevented from being harmful to the burning of the straw, however, the existing straw crushing device only cuts and crushes the straw through the crushing blade, the crushing effect is not ideal, and the crushed straw is still large in volume, so that the environment-friendly straw treatment device and the using method thereof are urgently needed to be designed to solve the problems.

Disclosure of Invention

Based on the technical problem that the existing straw crushing device cannot fully crush straws, the invention provides an environment-friendly straw treatment device and a use method thereof.

The invention provides an environment-friendly straw treatment device, which comprises a bottom plate, wherein universal wheels are fixed at four corners of the outer wall of the bottom plate, a treatment box is fixed on the outer wall of the top of the bottom plate, vertical plates are fixed at the middle positions of the inner walls of the top and the bottom of the treatment box, a crushing motor is fixed on the outer wall of one side of each vertical plate, a rotating rod is rotatably connected with the outer wall of one side of the crushing motor, which is far away from the vertical plates, a crushing box is fixed between the top and the bottom of the treatment box, the crushing box is tightly attached to the inner wall of one side of the treatment box, the rotating rod extends into the crushing box, the rotating rod is connected with the crushing box through a rotating shaft, a rotating ring is fixed at one end of the rotating rod, which extends into the crushing box, a plurality of crushing blades are fixed on the outer wall of the rotating ring, one side of each crushing blade, which is close to the inner wall of one side of the treatment box, is a tangent plane, one side of each crushing blade, which is far away from the treatment box, is an inclined plane, the inclined plane of smashing the sword is fixed with the arc sword, and the arc sword cambered surface towards smashing the sword, it arranges the material pipe to smash case one side outer wall bottom be fixed with, it is fixed with feedstock channel to handle case one side outer wall, and feedstock channel extends to crushing incasement portion.

Preferably, an extrusion bin is arranged between the vertical plate and the inner wall of one side, far away from the feeding channel, of the treatment box, and the discharge pipe extends to the interior of the extrusion bin.

Preferably, the inner wall of one side of the treatment box, which is far away from the feeding channel, is provided with a groove, one end of the groove is fixedly provided with a rotating motor, one end of the rotating motor is rotatably connected with a threaded lead screw, and the other end of the threaded lead screw is connected with the other end of the groove through a rotating shaft.

Preferably, the top and the bottom of the groove are both provided with a limiting groove, the outside of the threaded lead screw is provided with a fixed block, the outer walls of the top and the bottom of the fixed block are both fixed with limiting plates, and the two limiting plates are both adapted to the limiting grooves.

Preferably, the fixed block is close to one side outer wall of riser and is fixed with the stripper plate, and stripper plate one side outer wall contacts with the riser, and the position that riser both ends outer wall is close to the bottom all is fixed with arc shovel piece.

Preferably, the bottom and the top inner walls of the groove are provided with sliding grooves, and the sliding grooves are positioned between the limiting grooves and the extrusion plate.

Preferably, two sliding connection has two folded sheets between the spout, and the relative one end of folded sheet pass through bolted connection between respectively and the fixed block both ends outer wall.

Preferably, the outer walls of the two ends of the extrusion bin are provided with automatic discharge doors, and the inner walls of the opposite ends of the automatic discharge doors are fixed with pressure sensors.

A use method of an environment-friendly straw treatment device comprises the following steps:

s1: the device is moved to a place where straw is needed to be treated through the universal wheels, then the crushing motor is started, and the straw is sent into the crushing box from the feeding channel to be crushed.

S2: after the straws enter the crushing box, the crushing blade is driven by the crushing motor to rotate rapidly, the straws led in from the feeding channel are crushed, one side of the crushing blade close to the feeding channel is a tangent plane, one side of the crushing blade far away from the feeding channel is an inclined plane, the straws entering the crushing box can be cut off at the first time, the arc surface of the arc blade faces the crushing blade, crushed straw fragments are pressed by the arc blade, the scattering of the straw fragments is avoided, if the straws are not completely crushed after passing through the crushing blade, the straw crushing blade has larger volume, the arc blade can cut and crush the straws again, the crushed straws fall into the bottom of the crushing box, when the structure consisting of the crushing blade and the arc blade rotates rapidly, suction is generated at the feeding channel, the efficiency of the straws entering the crushing box is increased, meanwhile, thrust is generated at the discharge pipe, the crushed straws are discharged out of the crushing box and led into the extrusion bin, avoid the straw piece to accumulate in crushing incasement portion and lead to the problem of jam.

S3: when the chips are sent into the extrusion bin through the discharging pipe, the rotating motor drives the threaded lead screw to rotate, under the limitation of the two limiting grooves and the limiting plates, the fixed block can move back and forth along the threaded lead screw, then the extrusion plate is driven to move inside the extrusion bin, when the extrusion plate moves towards one end along the threaded lead screw, all the introduced straw chips are extruded between the extrusion plate and the inner wall of one side of the extrusion bin, and then the extrusion molding is carried out, the arc-shaped shovel block can shovel all the chips at the bottom of the extrusion bin, when the pressure sensor bears certain pressure, the automatic discharging door is controlled to be opened, so that the extruded chips are discharged out of the device, meanwhile, the pressure sensor controls the rotating motor to rotate reversely again, the other side of the extrusion plate extrudes the chips which are just led from the discharging pipe, the operation is repeated, all the chips led into the extrusion bin are extruded into blocks to be discharged, and the folding plate can slide left and right along with the fixed block, avoid the straw piece to enter into inside the recess and lead to the inside device of recess to damage.

Compared with the prior art, the invention provides an environment-friendly straw treatment device and a use method thereof, and the environment-friendly straw treatment device has the following beneficial effects:

1. the environment-friendly straw treatment device comprises a smashing motor, a smashing box, a smashing blade and an arc blade, wherein the smashing motor drives the smashing blade to rotate after straws are led into the smashing box, the straws are cut and smashed, one side of the smashing blade close to a feeding channel is a tangent plane, one side of the smashing blade far away from the feeding channel is an inclined plane, the straws entering the smashing box can be cut off at the first time, the smashing blade rotating at a high speed can ensure that the straws are smashed completely, the arc surface of the arc blade faces the smashing blade, smashed straw fragments can be pressed by the arc blade, scattering of the straw fragments is avoided, the fragments directly fall to the bottom of the smashing box, if the straws are not smashed completely after passing through the smashing blade, the size is large, the arc blade can cut and smash the smashed straws again, the smashed straws fall into the bottom of the smashing box, double smashing measures ensure that the straws are smashed completely, because the structure of smashing both constitutions of sword and arc sword can produce suction in feedstock channel department when rotating fast, increases the straw and gets into the efficiency of smashing the case, also produces thrust in row material pipe department simultaneously, smashes the leading-in extrusion storehouse of the quick discharge of complete straw piece, avoids the straw piece to lead to the problem of jam smashing the inside accumulation of incasement portion.

2. This straw processing apparatus is used in environmental protection, through setting up the rotation motor, the screw thread lead screw, the fixed block, stripper plate and arc shovel piece, when the straw piece is leading-in to the extrusion storehouse, the rotation motor drives the screw thread lead screw and rotates, under the restriction of limiting plate and spacing groove, the fixed block can be along screw thread lead screw back and forth movement, then drive the stripper plate at the inside motion of extrusion storehouse, when the stripper plate moves towards one end along the screw thread lead screw, all extrusion of leading-in straw piece are between stripper plate and extrusion storehouse one side inner wall, and then extrusion, the arc shovel piece can be with all shovels of the piece of extrusion storehouse bottom, make the piece be by the complete extrusion, when pressure sensor bears certain pressure, the automatic bin gate of arranging of control is opened, make the piece of being extruded be discharged this device, here pressure sensor secondary control rotates the motor reversal, make the stripper plate extrusion opposite side just from arranging the leading-in piece of material pipe, so repeatedly, the whole extrusion blocking of piece that will lead to the extrusion storehouse is discharged, and the people's of being convenient for carry need not people in addition and carries out bagging-off work to the piece once more, reduces people's the amount of labour, realizes smashing extrusion integration work, and the efficiency of very big improvement straw is smashed and is collected.

3. This straw processing apparatus for environmental protection, through folded sheet and the spout that sets up, when the fixed block horizontal slip, the folded sheet can follow the slip of fixed block and stretch or shrink, avoids the straw piece to enter into inside the causing of recess and rotates the damage of devices such as motor and screw lead screw.

Drawings

FIG. 1 is a schematic sectional view of the environment-friendly straw treatment apparatus according to the present invention;

FIG. 2 is a schematic top sectional view of an environmental straw treatment apparatus according to the present invention;

FIG. 3 is a schematic side sectional view of an environmental straw treatment apparatus according to the present invention;

FIG. 4 is a schematic view of the internal cross-sectional structure of an environmental straw treatment apparatus according to the present invention;

FIG. 5 is a schematic view of the crushing blade and the arc blade of the environmental-friendly straw treatment device according to the present invention.

In the figure: 1. a universal wheel; 2. a base plate; 3. a limiting groove; 4. a groove; 5. a treatment tank; 6. a chute; 7. a pressing plate; 8. a vertical plate; 9. a feed channel; 10. a grinding motor; 11. a crushing box; 12. a discharge pipe; 13. an arc shovel block; 14. rotating the motor; 15. a threaded lead screw; 16. a fixed block; 18. folding the board; 20. a rotating rod; 21. a crushing blade; 22. an automatic discharge gate; 23. a pressure sensor; 24. rotating the ring; 25. a limiting plate; 26. and (4) a curved edge.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, an environment-friendly straw treatment device comprises a bottom plate 2, four corners of the outer wall of the bottom plate 2 are all connected with universal wheels 1 through bolts, the outer wall of the top of the bottom plate 2 is connected with a treatment box 5 through bolts, the middle positions of the inner walls of the top and the bottom of the treatment box 5 are connected with vertical plates 8 through bolts, the outer wall of one side of each vertical plate 8 is connected with a crushing motor 10 through bolts, the outer wall of one side of each crushing motor 10, which is far away from the corresponding vertical plate 8, is rotatably connected with a rotating rod 20, the crushing box 11 is connected between the top and the bottom of the treatment box 5 through bolts, the crushing box 11 is tightly attached to the inner wall of one side of the treatment box 5, the rotating rod 20 extends into the crushing box 11, the rotating rod 20 is connected with the crushing box 11 through a rotating shaft, one end of the rotating rod 20, which extends into the crushing box 11, is connected with a rotating ring 24 through bolts, and the outer wall of the rotating ring 24 is connected with a plurality of crushing blades 21 through bolts, one side that crushing sword 21 is close to and handles 5 one side inner walls of case is the tangent plane, one side that crushing sword 21 keeps away from and handles 5 one side inner walls of case is the inclined plane, there is arc sword 26 on the inclined plane of crushing sword 21 through bolted connection, and 26 cambered surfaces of arc sword orientation smash sword 21, smash 11 one side outer wall bottoms of case and have row material pipe 12 through bolted connection, there is feed channel 9 on the outer wall of handling 5 one side of case through bolted connection, and feed channel 9 extends to crushing 11 insides of case.

In the invention, an extrusion bin is arranged between the vertical plate 8 and the inner wall of one side of the treatment box 5 far away from the feeding channel 9, the discharge pipe 12 extends into the extrusion bin, and the scraps can be directly conveyed into the extrusion bin by utilizing wind power generated by the crushing blade 21 and the arc blade 26.

In the invention, a groove 4 is formed in the inner wall of one side, away from a feeding channel 9, of a treatment box 5, one end of the groove 4 is connected with a rotating motor 14 through a bolt, one end of the rotating motor 14 is rotatably connected with a threaded lead screw 15, and the threaded lead screw 15 is connected with the other end of the groove 4 through a rotating shaft.

According to the invention, the top and the bottom of the groove 4 are both provided with the limiting grooves 3, the external part of the threaded lead screw 15 is provided with the fixed block 16, the outer walls of the top and the bottom of the fixed block 16 are both connected with the limiting plates 25 through bolts, and the two limiting plates 25 are both adapted to the limiting grooves 3.

According to the invention, the outer wall of one side, close to the vertical plate 8, of the fixed block 16 is connected with the extrusion plate 7 through the bolt, the outer wall of one side of the extrusion plate 7 is in contact with the vertical plate 8, the positions, close to the bottom, of the outer walls of the two ends of the vertical plate 8 are both connected with the arc shovel blocks 13 through the bolt, the arc shovel blocks 13 can ensure that the extrusion plate 7 can shovel all internal scraps in the moving process, and the efficiency of extruding the scraps is improved.

In the invention, the inner walls of the bottom and the top of the groove 4 are both provided with sliding grooves 6, and the sliding grooves 6 are positioned between the limiting groove 3 and the extrusion plate 7.

In the invention, two folding plates 18 are connected between the two sliding grooves 6 in a sliding manner, and the opposite ends of the folding plates 18 are respectively connected with the outer walls of the two ends of the fixed block 16 through bolts, so that the damage of instruments inside the groove 4 caused by entering of chips into the groove 4 can be avoided.

In the invention, the outer walls of two ends of the extrusion bin are respectively provided with the automatic discharge gate 22, the inner wall of one end, opposite to the automatic discharge gate 22, of the automatic discharge gate is connected with the pressure sensor 23 through the bolt, and the opening and closing of the automatic discharge gate 22 can be controlled through the pressure sensor 23, so that the fragment blocks can be conveniently discharged.

The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.

A use method of an environment-friendly straw treatment device comprises the following steps:

s1: the device is moved to a place where straw is needed to be treated through the universal wheels 1, then the crushing motor 10 is started, and the straw is sent into the crushing box 11 from the feeding channel 9 to start crushing treatment on the straw.

S2: after the straws enter the crushing box 11, the crushing blade 21 is driven by the crushing motor 10 to rotate rapidly, the straws led in from the feeding channel 9 are crushed, one side of the crushing blade 21 close to the feeding channel 9 is a tangent plane, one side far away from the feeding channel 9 is an inclined plane, the straws entering the crushing box 11 can be cut off at the first time, the arc surface of the arc blade 26 faces the crushing blade 21, the crushed straw fragments are pressed by the arc blade 26 to avoid scattering around the straw fragments, if the straws are not completely crushed after passing through the crushing blade 21, the size is large, the arc blade 26 can cut and crush the straws again, the crushed straws fall into the bottom of the crushing box 11, when the structure consisting of the crushing blade 21 and the arc blade 26 rotates rapidly, suction is generated at the feeding channel 9, the efficiency of the straws entering the crushing box 11 is increased, and meanwhile, thrust is generated at the discharge pipe 12, the straw chips which are completely crushed are quickly discharged into the crushing box 11, so that the problem that the straw chips are accumulated inside the crushing box 11 to cause blockage is avoided.

S3: when the scraps are sent into the extrusion bin through the discharging pipe 12, the rotating motor 14 drives the threaded screw rod 15 to rotate, under the limitation of the two limiting grooves 3 and the limiting plates 25, the fixing block 16 can move back and forth along the threaded screw rod 15, and then drives the extrusion plate 7 to move in the extrusion bin, when the extrusion plate 7 moves towards one end along the threaded screw rod 15, all the introduced straw scraps are extruded between the extrusion plate 7 and the inner wall of one side of the extrusion bin, and then are extruded and formed, the arc-shaped shovel block 13 can shovel all the scraps at the bottom of the extrusion bin, when the pressure sensor 23 bears certain pressure, the automatic discharging door 22 is controlled to be opened, so that the extruded and formed scraps are discharged out of the device, meanwhile, the pressure sensor 23 controls the rotating motor 14 to rotate reversely again, so that the extrusion plate 7 extrudes the scraps which are just led in from the discharging pipe 12 at the other side, and the operation is repeated, and all the scraps led into the extrusion bin are extruded and discharged, the folding plate 18 can slide left and right along with the fixing block 16, so that straw chips are prevented from entering the groove 4 to damage devices in the groove 4.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.