CN213718668U - Dry land tectorial membrane direct seeding machine - Google Patents

Abstract

The utility model discloses a nonirrigated farmland tectorial membrane direct seeder relates to agricultural machine technical field, and it includes the bottom plate, the equal fixedly connected with backup pad of upper surface right side front and back end of bottom plate, and the cross spout has all been seted up to two backup pad upsides, and equal sliding connection has the cross slider in two cross spouts. Through the blow-off groove that sets up, the slide opening, sprocket one, the pivot is four, sprocket two, the chain, a telescopic cylinder, the plectane, mutually support between activity area and the spring, when can drive pivot four rotations through gyro wheel two, pivot four drive fixed connection's rotary drum rotates, the rotary drum drives sliding connection's a plurality of rows of telescopic cylinder on the periphery again and rotates, constantly with blow-off groove downside cambered surface contact through the activity area of a plurality of rows of telescopic cylinder looks remote site settings, thereby promote to rotate to the telescopic cylinder of downside lapse, drive the spring shrink of outside cover establishment simultaneously with this, thereby make a telescopic cylinder insert and sow in the soil, the direct effect and the grain output of tectorial membrane crops have been improved.

Description

Dry land tectorial membrane direct seeding machine

Technical Field

The utility model relates to the technical field of agricultural machinery, specifically a direct seeder of nonirrigated farmland tectorial membrane.

Background

The plastic mulching film is widely used for crop cultivation and planting, and has the effects of improving soil properties, increasing soil temperature, maintaining soil moisture and nutrient supply conditions, improving illumination conditions, reducing plant diseases and insect pests and the like.

Most of the existing dry land mulching direct seeding machines only scatter seeds on the land surface when sowing and planting are carried out on the land, the seeds can not absorb moisture and nutrients from the soil only scatter on the land surface and can not germinate and emerge, so that the mulching direct seeding effect and the grain yield of crops are influenced, the existing soil-inserting direct seeding machines only communicate a conduit with a trough for storing the seeds and then insert the conduit into the land, the land is fine and broken, massive sandy soil blocks a conduit discharge port in the process of repeated work, the seeding of the seeds is influenced, time and labor are wasted in later cleaning, the mulching function of the existing mulching direct seeding machines is still imperfect, the speed of a degradable film is single when the degradable film works along with a vehicle, the spreading speed of the degradable film can not be adjusted according to specific conditions, the covering effect of the degradable film is reduced, and the moisture preservation can not be achieved, warming and water-saving effects.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model is not enough to prior art, the utility model provides a direct seeder of plastic film for dry land, solved and the seed only spills can't follow soil and absorb moisture and nutrient on the land surface, can not sprout and emerge, thereby the direct effect of crops plastic film for mulching and grain output have been influenced, at the in-process of repetitive work, there is cubic sand and soil to plug up the pipe discharge gate, influence the seeding of seed, the later stage clearance is wasted time and energy, can't adjust the expansion rate of plastic film according to particular case, thereby the cover effect of plastic film for mulching has been reduced, can't reach the moisturizing, the problem of the effect of heating and water conservation.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the technical proposal that: a dry land mulching direct seeding machine comprises a bottom plate, wherein the front end and the rear end of the right side of the upper surface of the bottom plate are fixedly connected with supporting plates, the upper sides of the two supporting plates are respectively provided with a cross-shaped chute, a cross-shaped sliding block is respectively connected in the two cross-shaped chutes in a sliding manner, the opposite surfaces of the two cross-shaped sliding blocks are respectively fixedly connected with the two ends of a rotating shaft I through a bearing I, the rotating shaft I is fixedly connected with a sleeve, the upper surface of the cross-shaped sliding block at the rear part is fixedly connected with the lower end optical axis part of a threaded rod I through a bearing II, the upper end of the threaded rod I extends to the upper part of the supporting plate and is fixedly connected with a rotating block, the threaded rod I is in threaded connection with a threaded hole formed in the top of the cross-shaped chute, the rear end of the rotating shaft I extends to the rear side of the supporting plate and is fixedly connected with a gear I, and the lower parts of the opposite surfaces of the two supporting plates are respectively and fixedly connected with a rotating shaft II through a bearing III, the rear part is fixedly connected with a second gear on the second rotating shaft, the second gear is meshed with the first gear, the opposite back ends of the second rotating shafts are fixedly connected with a first roller wheel, the right side of the bottom plate is provided with a guide roller wheel through a through hole, the middle part of the upper surface of the bottom plate is fixedly connected with a second threaded rod through a fourth bearing, the second threaded rod is in threaded connection with a threaded sleeve, the threaded sleeve is fixedly connected onto the right side wall of the U-shaped plate, the back surfaces of the left ends of the U-shaped plate are fixedly connected with a third rotating shaft through a fifth bearing, the opposite back ends of the third rotating shafts are fixedly connected with a second roller wheel, the rear part is fixedly connected with a first chain wheel on the third rotating shaft, the middle part of the opposite surface of the U-shaped plate is respectively and fixedly connected with the two ends of the fourth rotating shaft through a sixth bearing, the rear end of the fourth rotating shaft extends to the rear part of the U-shaped plate and is fixedly connected with the second chain wheel, and the second chain wheel is in transmission connection with the chain wheel through a chain, the front side of the fourth rotating shaft is fixedly connected with a rotating cylinder, the rotating cylinder corresponds to an opening formed in the left side of the upper surface of the bottom plate, a discharging groove is fixedly connected to one side, close to the lower side, of the middle portion of the inner wall of the rear side of the U-shaped plate, a row of discharging holes I is formed in the bottom of the discharging groove, a plurality of rows of sliding holes are formed in the circumferential surface of the rotating cylinder, a telescopic cylinder is slidably connected in each sliding hole, circular plates are fixedly connected to the outer side walls of the opposite ends of the telescopic cylinders, each circular plate is fixedly connected with the outer circumferential surface of the movable belt through a connecting cylinder, a plurality of discharging holes II are formed in the movable belt, a spring is sleeved outside each telescopic cylinder, the two ends of each spring are fixedly connected with the circular plates and the inner wall of the rotating cylinder respectively, semi-conical plates are fixedly connected to the two sides of the opposite ends of each telescopic cylinder through hinges, the two semi-conical plates are symmetrically arranged, and T-shaped sliding grooves I are formed in the two sides of the circumferential surface of each telescopic cylinder, two equal sliding connection has T shape slider, two in the T shape spout one the looks back end of T shape slider all extends to the outer fixedly connected with limiting plate of telescopic tube, two equal fixedly connected with linkage strip on the T shape slider, and the equal sliding connection of both sides linkage strip in the spout of seting up on the telescopic tube lateral wall, and the other one end of two linkage strips respectively with both sides half-cone plate fixed connection, the equal fixedly connected with T shape draw runner of upper surface left side front and back end of bottom plate, two T shape draw runner difference sliding connection is in the T shape spout two that U-shaped plate opposite face left side was seted up.

Preferably, the left end of the upper surface of the bottom plate is fixedly connected with a butt-joint hook.

Preferably, the sleeve is externally coiled with a degradable membrane.

Preferably, the diameter of the second gear is twice the diameter of the first gear.

Preferably, the circumferential surfaces of the first two rollers and the second two rollers are provided with anti-skid lines.

Preferably, the second discharge port row corresponds to the telescopic cylinders one by one.

Preferably, the movable belt is made of rubber.

Preferably, the tip of each of the two semi-conical plates is provided with a magnet, and the magnetic poles of the magnets on the two sides are opposite.

Preferably, the linkage strip is made of plastic.

(III) advantageous effects

The beneficial effects of the utility model reside in that:

1. this dry land tectorial membrane direct seeder, blow-off groove through setting up, the slide opening, sprocket one, the pivot is four, sprocket two, the chain, a telescopic cylinder, the plectane, mutually support between movable area and the spring, when can drive pivot four rotations through two gyro wheels, pivot four drive fixed connection's rotary drum rotates, the rotary drum drives sliding connection's a plurality of rows of telescopic cylinder rotation on the periphery again, constantly with blow-off groove downside cambered surface contact through the movable area of a plurality of rows of telescopic cylinder looks remote site settings, thereby promote to rotate the telescopic cylinder of downside and slide down, drive the spring shrink of establishing with this while outside cover, thereby make the telescopic cylinder insert and sow in the soil, the effect and the grain output of crops tectorial membrane direct seeding have been improved.

2. This nonirrigated farmland tectorial membrane seed-sowing machine, half conical plate through setting up, T shape spout one, T shape slider, the limiting plate, mutually support between linkage strip and the magnet, can promote closed half conical plate through the telescopic tube and insert behind the ground, the limiting plate card of both sides is in the ground top, the T shape slider that drives both sides slides in T shape spout one, the T shape slider of both sides drives fixed connection's linkage strip again and removes, thereby the half conical plate that drives both sides opens, the seed of hoarding in making the half conical plate of both sides falls in the soil, after in the spring passes through elasticity promotion telescopic tube withdrawal rotary drum afterwards, the limiting plate and the overlap joint of rotary drum outer wall of both sides, thereby it is closed to promote half conical plate through the linkage strip of both sides, it stops up the pipe discharge gate to have blocky sandy soil, influence the seeding of seed.

3. This direct seeder of plastic film on dry land, backup pad through setting up, cross slider, pivot one, threaded rod one, gear one, mutually support between pivot two and the gear two, can be through the turning block of rotating threaded rod one upper end, make threaded rod one reciprocate in the screw hole, thereby drive lower extreme fixed connection's cross slider and reciprocate in the cross spout, meshing and non-meshing between gear one and the gear two have been realized, thereby realized adjusting the expansion rate of plastic film according to particular case, the cover effect of plastic film has been improved.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the support plate of the present invention;

FIG. 3 is a left side view of the supporting plate of the present invention;

FIG. 4 is a schematic view of the rear view of the U-shaped plate of the present invention;

FIG. 5 is a schematic view of a left side sectional structure of the rotary drum of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 7 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

In the figure: 1 bottom plate, 2 supporting plates, 3 cross-shaped sliding grooves, 4 cross-shaped sliding blocks, 5 rotating shaft I, 6 sleeves, 7 threaded rod I, 8 gear I, 9 rotating shaft II, 10 roller I, 11 gear II, 12 guide roller, 13 threaded rod II, 14 threaded sleeves, 15U-shaped plates, 16 rotating shaft III, 17 roller II, 18 sprocket I, 19 rotating shaft IV, 20 sprocket II, 21 chain, 22 revolving drum, 23 discharging trough, 24 discharging hole I, 25 sliding hole I, 26 telescopic cylinder, 27 circular plate, 28 movable belt, 29 discharging hole II, 30 springs, 31 semi-conical plate, 32T-shaped sliding groove I, 33T-shaped sliding block, 34 limiting plate, 35 linkage strip, 36T-shaped sliding strip, 37T-shaped sliding groove II, 38 degradation film, 39 butt hook and 40 magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-7, the utility model provides a technical solution: a dry land mulching direct seeding machine comprises a bottom plate 1, wherein a butt joint hook 39 is fixedly connected to the left end of the upper surface of the bottom plate 1, the butt joint hook 39 is arranged at the left end of the upper surface of the bottom plate 1, the device can be butted with an agricultural carrier to drive the device to move, supporting plates 2 are fixedly connected to the front end and the rear end of the right side of the upper surface of the bottom plate 1, cross sliding grooves 3 are formed in the upper sides of the two supporting plates 2, a degradable film 38 arranged on a rotating shaft I5 can be more stable during up-and-down movement by arranging the cross sliding grooves 3 and the cross sliding blocks 4, the cross sliding blocks 4 are slidably connected in the two cross sliding grooves 3, opposite surfaces of the two cross sliding blocks 4 are respectively and fixedly connected with two ends of the rotating shaft I5 through a bearing I, a sleeve 6 is fixedly connected to the rotating shaft I5, the degradable film 38 is coiled outside the sleeve 6, one end of the degradable film 38 penetrates through a through hole formed in the bottom plate 1, the upper surface of the rear cross-shaped sliding block 4 is fixedly connected with the lower end optical axis part of a first threaded rod 7 through a second bearing, the upper end of the first threaded rod 7 extends to the upper part of the supporting plate 2 and is fixedly connected with a rotating block, the first threaded rod 7 is more conveniently rotated through the rotating block, the first threaded rod 7 is in threaded connection with a threaded hole formed in the top of a cross-shaped sliding groove 3, the first threaded rod 7 is in threaded connection with the threaded hole in the top of the cross-shaped sliding groove 3 through the first threaded rod 7, the first threaded rod 7 can be rotated to drive the fixedly connected rear cross-shaped sliding block 4 to move up and down, so that the first gear 8 is driven to be meshed with or not meshed with the second gear 11, the device is convenient to transfer and the extension speed of a degradable film 38 of the device during film covering is convenient to adjust, the rear end of the first rotating shaft 5 extends to the rear side of the rear supporting plate 2 and is fixedly connected with the first gear 8, the diameter of the gear II 11 is twice of that of the gear I8, the gear II 11 coaxially connected with the roller I10 can drive the first rotating shaft 5 to be provided with the degradable film 38 to rotate faster when rotating slowly, the degradable film 38 is prevented from being broken due to the fact that the vehicle speed is higher than the extension speed of the degradable film 38, the film covering effect of the degradable film 38 can be improved, the lower parts of the opposite surfaces of the two support plates 2 are fixedly connected with the second rotating shaft 9 through the bearing III, the gear II 11 is fixedly connected with the rear rotating shaft 9 and is meshed with the gear I8, the roller I10 can drive the first rotating shaft 5 to rotate when rotating through the gear II 11 being meshed with the gear I8, structural integrity is achieved, the opposite ends of the two rotating shafts II 9 are fixedly connected with the roller I10, and the circumferential surfaces of the two roller I10 and the two roller II 17 are provided with anti-slip lines, the anti-slip lines are arranged on the circumferential surfaces of the first roller 10 and the second roller 17, so that the device has better ground grabbing force when the device rotates on the ground with uneven ground surface and insufficient fine fineness, the guide roller 12 is arranged on the right side of the bottom plate 1 through the arranged through hole, the guide roller 12 can ensure that the device does not rub the through hole arranged on the bottom plate 1 when a degradable film 38 is pulled to cover the film, the damage of the degradable film 38 is avoided, the middle part of the upper surface of the bottom plate 1 is fixedly connected with the second threaded rod 13 through the four bearings, the second threaded rod 13 is in threaded connection with the threaded sleeve 14, the threaded sleeve 14 is fixedly connected to the right side wall of the U-shaped plate 15, the threaded sleeve 14 in threaded connection can be driven to move up and down through rotating the second threaded rod 13 through arranging the second threaded sleeve 13 and the threaded sleeve 14, therefore, the two rollers 17 on the left side are not in lap, the back of the left end of the U-shaped plate 15 is fixedly connected with a third rotating shaft 16 through a fifth bearing, the opposite back ends of the two third rotating shafts 16 are fixedly connected with a second roller 17, the third rear rotating shaft 16 is fixedly connected with a first chain wheel 18, the second chain wheel 20 and a chain 21 are arranged to be matched with each other, the first chain wheel 18 which is coaxially connected with the second rotating shaft 17 can be driven by the second left rear roller 17, the first chain wheel 18 drives the second chain wheel 20 to rotate through the chain 21, the second chain wheel 20 drives a rotating drum 22 which is coaxially connected with the second chain wheel to rotate, the rotating drum 22 drives a plurality of rows of telescopic drums 26 which are in sliding connection with the circumferential surface to rotate, the structural integrity is realized, the middle part of the U-shaped plate 15 is respectively and fixedly connected with the two ends of the fourth rotating shaft 19 through sixth bearings, the rear end of the fourth rotating shaft 19 extends to the rear of the U-shaped plate 15 and is fixedly connected with the second chain wheel 20, and the second chain wheel 20 is in transmission connection with the first chain wheel 18 through the chain 21, the front side of the rotating shaft IV 19 is fixedly connected with a rotating drum 22, the rotating drum 22 corresponds to an opening formed in the left side of the upper surface of the bottom plate 1, a plurality of rows of telescopic cylinders 26 can extend to the lower part of the bottom plate 1 and be inserted into the soil by forming the opening in the left side of the upper surface of the bottom plate 1, a discharging trough 23 is fixedly connected to the middle part of the inner wall of the rear side of the U-shaped plate 15 close to the lower side, a row of discharging holes I24 is formed in the bottom of the discharging trough 23, a row of discharging holes II 29 corresponds to a row of telescopic cylinders 26 one by one, seeds in the discharging trough 23 can fall into the lower inner ends of the row of telescopic cylinders 26 through gravity by arranging the openings above the row of telescopic cylinders 26 and the row of discharging holes II 29 formed in the movable belt 28 in one by one to one, the structural integrity is realized, a plurality of rows of sliding holes 25 are formed in the circumferential surface of the rotating drum 22, the telescopic cylinders 26 are connected in a sliding manner in each sliding hole 25, and the outer side walls of the plurality of telescopic cylinders 26 are fixedly connected with circular plates 27, each circular plate 27 is fixedly connected with the outer circumferential surface of the movable belt 28 through a connecting cylinder, the movable belt 28 is made of rubber, the movable belt 28 can have certain elasticity by arranging the movable belt 28 made of rubber so as to conveniently rotate along with a plurality of rows of telescopic cylinders 26, a plurality of discharge ports II 29 are formed in the movable belt 28, a spring 30 is sleeved outside each telescopic cylinder 26, after the telescopic cylinder 26 is not overlapped with the arc surface at the bottom of the discharging groove 23 through the arrangement of the spring 30, the spring 30 pushes the automatic telescopic cylinder 26 to retract into the rotary cylinder 22 through elasticity, two ends of the spring 30 are respectively and fixedly connected with the circular plate 27 and the inner wall of the rotary cylinder 22, semi-conical plates 31 are fixedly connected with two opposite sides of the back end of each telescopic cylinder 26 through hinges, magnets 40 are arranged at the tips of the two semi-conical plates 31, the magnetic poles of the magnets 40 at two sides are opposite, and magnets 40 are arranged at the tips of the two semi-conical plates 31, the two semi-conical plates 31 on the two sides can be firmer when being closed, the two semi-conical plates 31 are symmetrically arranged, the first T-shaped sliding grooves 32 are formed in the two sides of the circumferential surface of each telescopic cylinder 26, the first T-shaped sliding blocks 33 are connected in the first T-shaped sliding grooves 32 in a sliding mode, the first T-shaped sliding grooves 32 and the first T-shaped sliding blocks 33 are arranged, the limiting plate 34 can be more stable when moving, the back ends of the two T-shaped sliding blocks 33 extend to the outside of the telescopic cylinder 26 and are fixedly connected with the limiting plate 34, the two T-shaped sliding blocks 33 are fixedly connected with the linkage strips 35, the linkage strips 35 are made of plastic materials, the semi-conical plates 31 on the two sides can be pushed to be closed, meanwhile, certain toughness is achieved, the semi-conical plates 31 on the two sides can be bent along with the linkage strips 35 on the two sides are connected in sliding grooves formed in the side walls of the telescopic cylinders 26 in a sliding mode, and the other ends of the two linkage strips 35 are respectively and fixedly connected with the semi-conical plates 31 on the two sides, equal fixedly connected with T shape draw runner 36 in bottom plate 1's upper surface left side front and back end through setting up T shape draw runner 36 and two 37 of T shape spout, can carry out spacing its pivoted of avoiding to U-shaped plate 15 in the realization, makes it more stable when reciprocating, and two T shape draw runners 36 are sliding connection respectively in two 37 of T shape spouts that the opposite face left side was seted up of U-shaped plate 15.

The utility model discloses an operating procedure does:

s1, when the device is used, firstly, the device is butted on an agricultural vehicle such as a tractor, then one end of the degradable film 38 passes through the through hole, is lapped on the lower side of the guide roller 12 arranged on the right side and then is fixed at one end of the sowing area, then crop seeds needing to be sowed are poured into the discharging groove 23, then the second threaded rod 13 is rotated to enable the threaded sleeve 14 in threaded connection with the second threaded rod to move downwards, the threaded sleeve 14 drives the fixedly connected U-shaped plate 15 to move downwards, meanwhile, the T-shaped sliding grooves two 37 arranged on the opposite surfaces of the U-shaped plate 15 slide downwards on the T-shaped sliding strips 36 arranged on the upper surface of the bottom plate 1, so that the U-shaped plate 15 drives the fixedly connected rotary drum 22 to move downwards, the rotation is stopped after the U-shaped plate is moved to a proper position, then the agricultural vehicle is controlled to move, and the agricultural vehicle drives the first roller 10 and the second roller 17 of the device to rotate on the ground, the rear roller wheel II 17 on the left side drives a chain wheel I18 which is coaxially connected, the chain wheel I18 drives a chain wheel II 20 to rotate through a chain 21, the chain wheel II 20 drives a rotary drum 22 which is coaxially connected to rotate, the rotary drum 22 drives a plurality of rows of telescopic cylinders 26 which are in sliding connection on the circumferential surface to rotate, a movable belt 28 which is arranged at the opposite ends of the plurality of rows of telescopic cylinders 26 is continuously contacted with the lower side of a discharging groove 23 through an arc surface, so that the telescopic cylinders 26 which rotate to the lower side are pushed to slide downwards, a row of discharging holes II 29 which are arranged on the movable belt 28 and a row of discharging holes I24 which are arranged at the lower end of the discharging groove 23 correspond one by one, seeds in the discharging groove 23 fall into the inner lower ends of the row of telescopic cylinders 26 through gravity, meanwhile, the telescopic cylinders 26 drive springs 30 sleeved on the outer side to shrink, and the lower telescopic cylinders 26 push the closed semi-conical plates 31 to be inserted into the ground, the limiting plates 34 on the two sides are clamped above the ground to drive the T-shaped sliding blocks 33 on the two sides to slide in the first T-shaped sliding grooves 32, the T-shaped sliding blocks 33 on the two sides further drive the fixedly connected linkage strips 35 to move, so that the semi-conical plates 31 on the two sides are driven to open, seeds accumulated in the semi-conical plates 31 on the two sides fall into the ground, the rotary drum 22 continuously rotates to drive the lower telescopic drum 26 to continuously rotate, after the lower telescopic drum 26 is not overlapped with the bottom arc surface of the discharging groove 23, the spring 30 pushes the telescopic drum 26 to be retracted into the rotary drum 22 through elasticity, the limiting plates 34 on the two sides are overlapped with the outer wall of the rotary drum 22, so that the T-shaped sliding blocks 33 on the two sides are pushed to reversely slide in the first T-shaped sliding grooves 32, and then the linkage strips 35 on the two sides push the tips of the semi-conical plates 31 to be provided with the magnets 30 for adsorption, so that the semi-conical plates 31 on the two sides are driven to close, and seeding is completed;

s2, meanwhile, the right rear roller wheel I10 drives the gear II 11 which is coaxially connected to rotate, the gear II 11 drives the meshing gear I8 to rotate, the degradable membrane 38 is assisted to unfold the peritoneum, when the unfolding speed of the degradable membrane 38 needs to be adjusted, the rotating block at the upper end of the threaded rod I7 is rotated, the threaded rod I7 is enabled to drive the cross-shaped sliding block 4 fixedly connected with the lower end to move upwards in the cross-shaped sliding groove 3 through threaded connection with the threaded hole, the gear I8 is driven to be not meshed with the gear II 11, and the degradable membrane 38 is enabled to unfold in an idling mode along with the vehicle speed.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. The utility model provides a direct seeder of dry land tectorial membrane, includes bottom plate (1), its characterized in that: the front end and the rear end of the right side of the upper surface of the bottom plate (1) are fixedly connected with supporting plates (2), the upside of the two supporting plates (2) is provided with two cross chutes (3), the middle of the two cross chutes (3) is connected with a cross slide block (4) in a sliding manner, the opposite surfaces of the two cross slide blocks (4) are respectively fixedly connected with the two ends of a rotating shaft I (5) through a bearing I, the rotating shaft I (5) is fixedly connected with a sleeve (6), the rear end of the cross slide block (4) is fixedly connected with the lower end optical axis part of a threaded rod I (7) through a bearing II, the upper end of the threaded rod I (7) extends to the upper part of the supporting plate (2) and is fixedly connected with a rotating block, the threaded rod I (7) is in threaded connection with a threaded hole formed in the top of the cross chute (3), the rear end of the rotating shaft I (5) extends to the rear side of the rear supporting plate (2) and is fixedly connected with a gear I (8), the lower parts of the back surfaces of the two supporting plates (2) are fixedly connected with a second rotating shaft (9) through a third bearing, the rear part of the second rotating shaft (9) is fixedly connected with a second gear (11), the second gear (11) is meshed with the first gear (8), the back ends of the two rotating shafts (9) are fixedly connected with a first roller (10), the right side of the bottom plate (1) is provided with a guide roller (12) through a formed through hole, the middle part of the upper surface of the bottom plate (1) is fixedly connected with a second threaded rod (13) through a fourth bearing, the second threaded rod (13) is in threaded connection with a threaded sleeve (14), the threaded sleeve (14) is fixedly connected to the right side wall of the U-shaped plate (15), the back surface of the left end of the U-shaped plate (15) is fixedly connected with a third rotating shaft (16) through a fifth bearing, and the back ends of the two rotating shafts (16) are fixedly connected with a second roller (17), a first chain wheel (18) is fixedly connected to the rear third rotating shaft (16), the middle of the opposite surface of the U-shaped plate (15) is fixedly connected with two ends of a fourth rotating shaft (19) through a bearing six, the rear end of the fourth rotating shaft (19) extends to the rear of the U-shaped plate (15) and is fixedly connected with a second chain wheel (20), the second chain wheel (20) is in transmission connection with the first chain wheel (18) through a chain (21), a rotating drum (22) is fixedly connected to the front side of the fourth rotating shaft (19), the rotating drum (22) corresponds to an opening formed in the left side of the upper surface of the bottom plate (1), a discharging groove (23) is fixedly connected to one lower side of the middle of the inner wall of the rear side of the U-shaped plate (15), a row of first discharging holes (24) is formed in the bottom of the discharging groove (23), a plurality of rows of sliding holes (25) are formed in the circumferential surface of the rotating drum (22), and a telescopic drum (26) is slidably connected to each sliding hole (25), the outer side walls of the opposite ends of the plurality of telescopic cylinders (26) are fixedly connected with circular plates (27), each circular plate (27) is fixedly connected with the outer side circumferential surface of the movable belt (28) through a connecting cylinder, the movable belt (28) is provided with a plurality of discharge ports II (29), each telescopic cylinder (26) is externally sleeved with a spring (30), the two ends of each spring (30) are fixedly connected with the inner walls of the circular plates (27) and the rotary drum (22) respectively, the two opposite ends of each telescopic cylinder (26) are fixedly connected with semi-conical plates (31) through hinges, the two semi-conical plates (31) are symmetrically arranged, the two sides of the circumferential surface of each telescopic cylinder (26) are provided with a T-shaped sliding groove I (32), the two T-shaped sliding grooves I (32) are connected with T-shaped sliding blocks (33) in a sliding manner, and the opposite ends of the two T-shaped sliding blocks (33) extend to the outside the telescopic cylinder (26) and are fixedly connected with limiting plates (34), two equal fixedly connected with linkage strip (35) on T shape slider (33), and the equal sliding connection of both sides linkage strip (35) in the spout of seting up on telescopic cylinder (26) lateral wall, and the other one end of two linkage strips (35) respectively with both sides half cone-shaped plate (31) fixed connection, the equal fixedly connected with T shape draw runner (36) of upper surface left side front and back end of bottom plate (1), two T shape draw runner (36) sliding connection respectively is in the T shape spout two (37) of seting up on U-shaped plate (15) opposite face left side.

2. The dry land mulching direct seeding machine according to claim 1, characterized in that: the left end of the upper surface of the bottom plate (1) is fixedly connected with a butt-joint hook (39).

3. The dry land mulching direct seeding machine according to claim 1, characterized in that: and a degradable film (38) is wound outside the sleeve (6).

4. The dry land mulching direct seeding machine according to claim 1, characterized in that: the diameter of the second gear (11) is twice that of the first gear (8).

5. The dry land mulching direct seeding machine according to claim 1, characterized in that: the circumferential surfaces of the two first rollers (10) and the two second rollers (17) are provided with anti-skid lines.

6. The dry land mulching direct seeding machine according to claim 1, characterized in that: one row of the second discharge ports (29) is in one-to-one correspondence with one row of the telescopic cylinders (26).

7. The dry land mulching direct seeding machine according to claim 1, characterized in that: the movable belt (28) is made of rubber.

8. The dry land mulching direct seeding machine according to claim 1, characterized in that: the tips of the two semi-conical plates (31) are provided with magnets (40), and the magnetic poles of the magnets (40) on the two sides are opposite.

9. The dry land mulching direct seeding machine according to claim 1, characterized in that: the linkage strip (35) is made of plastic.

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