CN215421593U - Seed drill with adjustable spacing - Google Patents

Abstract

The utility model relates to an adjustable interval drill seed seeder relates to agricultural equipment's technical field, the seeder includes the mounting, and the handheld pole of fixedly connected with is connected with a plurality of seeding pipes on the mounting, and the last fixedly connected with of seeding pipe is fought with the storage kind of seeding pipe intercommunication, be equipped with the roll adjustment subassembly of adjusting two adjacent seeding pipe intervals between mounting and the seeding pipe. This application has the effect that improves the seeder suitability.

Description

Seed drill with adjustable spacing

Technical Field

The application relates to the field of agricultural equipment, in particular to an adjustable-interval drill seed sowing machine.

Background

The application of the seeder in the field of agricultural planting is extremely wide, and the seeder can be divided into various types such as a drill type, a broadcast type, a hole sowing type and the like according to the operation mode.

Wherein the drill seeder is mainly used for the seeding operation of small-sized seeds such as grains, vegetables, pasture and the like. Referring to fig. 1, for a seeder that correlation technique provided, it includes fixed mobile jib 11, three seeding pipe 2 of fixedly connected with on the fixed mobile jib 11, three seeding pipe 2 distributes along the length direction equidistance of fixed mobile jib 11, and equal fixedly connected with seed storage is fought 5 on every seeding pipe 2, and the one end that the seed storage was fought 5 is linked together with seeding pipe 2, and fixed mobile jib 11 keeps away from on the lateral wall of seeding pipe 2 fixedly connected with handheld pole 4.

When carrying out the seeding operation, operating personnel holds handheld pole 4, rotate handheld pole 4 and make the 2 tilt up of seeding pipe, pour the seed into seed storage fill 5 in, then align every seeding pipe 2 with corresponding planting ditch, operating personnel rotates handheld pole 4 this moment, handheld pole 4 rotates and drives fixed mobile jib 11 and seeding pipe 2 and rotates, make the 2 downward slopping of seeding pipe and keep aliging with corresponding planting ditch, operating personnel moves along the length direction who plants the ditch simultaneously, when operating personnel moved, the seed continuation in seed storage fill 5 falls to planting in the ditch along seeding pipe 2, thereby realize the seeding.

To the correlation technique among the above-mentioned, the inventor thinks that the cultivation density of different crops differs, and fixed connection leads to the seeder to adjust the seeding interval between seeding pipe 2 and the fixed mobile jib 11, and the suitability of seeder is lower.

SUMMERY OF THE UTILITY MODEL

In order to improve the suitability of seeder, this application provides an adjustable interval drilling seed seeder.

The application provides a pair of adjustable interval drill seed planter adopts following technical scheme:

the utility model provides an adjustable interval drill seed seeder, the seeder includes the mounting, and the handheld pole of fixedly connected with on the mounting is connected with a plurality of seeding pipes on the mounting, and the seed storage that fixedly connected with and seeding pipe communicate on the seeding pipe is fought, be equipped with the roll adjustment subassembly of adjusting two adjacent seeding pipe intervals between mounting and the seeding pipe.

Through adopting above-mentioned technical scheme, when planting the interval between the ditch and changing, operating personnel passes through the interval between two adjacent seeding pipes of roll adjustment subassembly adjustment, makes every seeding pipe all align with a planting ditch, then operating personnel pulling handheld pole makes the seeder remove along the length direction who plants the ditch, and the seed in the seed storage fill flows along the seeding pipe simultaneously to the realization is planted the ditch to different intervals and is carried out the purpose of sowing, has improved the suitability of seeder.

Optionally, the mounting includes the fixed mobile jib that a plurality of intervals set up, and the roll adjustment subassembly is including setting up the bellows between two adjacent fixed mobile jibs, each end of bellows all with a fixed mobile jib fixed connection that is close to mutually, every the seeding pipe all with a corresponding fixed mobile jib fixed connection.

Through adopting above-mentioned technical scheme, when the interval between two seeding pipes is dwindled to needs, promote fixed mobile jib, compress the bellows when fixed mobile jib removes, make the distance between two adjacent fixed mobile jib shorten, thereby make the interval between two adjacent seeding pipes shorten, reach the purpose of interval between two seeding pipes of adjustment, when the interval between two seeding pipes of needs increase, two adjacent fixed mobile jib are drawn to the direction of keeping away from each other, stretch the bellows when fixed mobile jib removes, thereby make the interval increase between two adjacent seeding pipes, reach the possibility of interval between two adjacent seeding pipes of adjustment.

Optionally, the mounting includes the sleeve pipe, the roll adjustment subassembly includes two loop bars, and two loop bars are each located sheathed tube one end, and every loop bar all pegs graft with the one end that the sleeve pipe is close to mutually, and equal fixed connection seed sowing pipe on sleeve pipe and every loop bar has seted up a plurality of locating holes on the loop bar, and a plurality of locating holes set up along the length direction of loop bar, and a pinhole has all been seted up to every one end of sheathed tube, passes the pinhole and is provided with a spacer pin with the locating hole, and the spacer pin runs through the sleeve pipe.

Through adopting above-mentioned technical scheme, when the interval between two adjacent seeding pipes of needs adjustment, two spacer pins of pulling in proper order to the sleeve pipe outside, make every spacer pin all break away from with the sleeve pipe, remove two loop bars in proper order after that, make every seeding pipe all align with a corresponding planting ditch, and every pinhole all aligns with one of them locating hole, then align spacer pin and corresponding pinhole, promote the spacer pin to the intraduct, make the spacer pin run through the sleeve pipe, thereby make between loop bar and the sleeve pipe fixed, reach the purpose of adjusting the interval between two adjacent seeding pipes.

Optionally, the fixing part is a cross rod, a seeding pipe is fixedly connected to the cross rod, a plurality of sliding sleeves are further slidably sleeved on the cross rod and arranged along the length direction of the cross rod, a seeding pipe is fixedly connected to each sliding sleeve, and the cross rod is provided with a driving part corresponding to the number of the sliding sleeves.

Through adopting above-mentioned technical scheme, when the interval between two adjacent seeding pipes of needs adjustment, start the driving piece, the driving piece drives the sliding sleeve and removes, and the sliding sleeve removes and drives the seeding pipe and remove to can change the interval between two adjacent seeding pipes.

Optionally, the sliding block that is the T shape is fixedly connected with on the interior top surface of sliding sleeve, has seted up the slide on the top surface of horizontal pole, and the slide sets up along the length direction of horizontal pole.

Through adopting above-mentioned technical scheme, the in-process slider that removes at the sliding sleeve plays spacing effect with the slide, reduces the sliding sleeve and takes place the possibility that breaks away from with the horizontal pole.

Optionally, the top surface of the sliding sleeve is fixedly connected with a projection, the driving piece comprises a lead screw which penetrates through the projection and is in threaded connection with the projection, and the cross rod is fixedly connected with a distance-adjusting motor which drives the lead screw to rotate.

Through adopting above-mentioned technical scheme, when the interval between two adjacent sliding sleeves of needs adjustment, start driving motor, driving motor drives the lead screw and rotates, and the lead screw rotates and drives the lug and remove, and the lug removes and drives the sliding sleeve and remove along the horizontal pole, and the sliding sleeve removes and drives the seeding pipe and remove to make the interval between two seeding pipes of adjustment that operating personnel can be more convenient.

Optionally, a seed outlet pipe is arranged at one end, close to the seeding pipe, of the seed storage hopper, the longitudinal section of the seed outlet pipe is circular, and a seed outlet assembly for controlling the seed outflow speed is arranged at the seed outlet pipe.

Through adopting above-mentioned technical scheme, when operating personnel used the seeder to sow, at first pour into the seed storage fill into, then start out the subassembly, the subassembly of planting out makes the seed stream reduce to the speed of sowing the seed pipe in the seed storage fill, avoids a large amount of seeds to flow out fast as far as possible, has reduced the possibility of taking place extravagant seed.

Optionally, go out the subassembly including installing at the inside rotation wheel of play seed tube, the external diameter that rotates the wheel and the internal diameter adaptation of play seed tube are equipped with a plurality of cavities in rotating the wheel, store up and are equipped with the drive on the kind fill and rotate wheel pivoted driving motor.

Through adopting above-mentioned technical scheme, when operating personnel sow, at first pour into the seed storage fill, the seed in the seed storage fill falls to the cavity in, then start driving motor, driving motor rotates and drives and rotates the wheel rotation, rotates the wheel and rotates and make the seed in the cavity fall to the seeding intraductally, falls to planting in the ditch along the seeding pipe at last to realize the seeding, avoided the seed to flow out along the seeding pipe fast.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the fixing piece and the distance adjusting assembly, the distance between two adjacent sowing pipes can be changed according to actual needs, and the applicability of the sowing machine is improved;

2. by arranging the lead screw and the distance adjusting motor, the distance adjusting motor controls the lead screw to rotate so as to control the sliding sleeve to move, so that an operator can adjust the distance between two adjacent seeding pipes more conveniently;

3. through setting up out kind of subassembly, make the interior seed stream of seed storage fill to the speed reduction of seeding pipe to avoided the seed to flow out fast, reduced the possibility that takes place extravagant seed.

Drawings

Fig. 1 is a schematic view showing the overall structure of a sowing machine in the related art.

Fig. 2 is a schematic view showing the overall structure of the seeding machine in embodiment 1 of the present application.

Fig. 3 is a sectional view showing the positional relationship of the components in example 1 of the present application.

Fig. 4 is a schematic view showing the overall structure of the sowing machine in embodiment 2 of the present application.

Fig. 5 is an exploded view showing the overall structure of the pitch control assembly in embodiment 2 of the present application.

Fig. 6 is a schematic view showing the overall structure of the sowing machine in embodiment 3 of the present application.

Fig. 7 is an exploded view showing the connection relationship between the sliding sleeve and the cross bar in example 3 of the present application.

Description of reference numerals: 1. a fixing member; 11. fixing the main rod; 12. a sleeve; 121. a pin hole; 13. a cross bar; 131. a slideway; 132. a fixed block; 2. seeding a pipe; 3. a distance adjusting component; 31. a bellows; 32. a loop bar; 321. positioning holes; 33. a spacing pin; 34. a sliding sleeve; 341. a slider; 342. a bump; 35. a drive member; 351. a lead screw; 352. a distance-adjusting motor; 4. a hand-held wand; 5. a seed storage hopper; 51. discharging the seed; 6. a seed discharging assembly; 61. a rotating wheel; 611. a material plate; 612. a partition plate; 613. a chamber; 62. a drive motor; 7. and supporting the wheels.

Detailed Description

The present application is described in further detail below with reference to figures 2-7.

The embodiment of the application discloses a seed drill with adjustable spacing.

Example 1

Referring to fig. 2, the seeder includes mounting 1 that the level set up, and mounting 1 includes the fixed mobile jib 11 that a plurality of interval set up, and the fixed mobile jib 11 quantity in this application embodiment is three, and every fixed mobile jib 11 all fixedly connected with one seeding pipe 2 on the same lateral wall of orientation, the equal downward sloping of three seeding pipe 2 is equipped with the roll adjustment subassembly 3 of adjusting interval between two adjacent seeding pipes 2 on the mounting 1. The distance adjusting assembly 3 comprises a corrugated pipe 31 arranged between two adjacent fixed main rods 11, the corrugated pipe 31 is a stainless steel corrugated pipe, and each end of the corrugated pipe 31 is fixedly connected with the fixed main rod 11 which is close to the corrugated pipe 31. The upper surface of one of the fixed main rods 11 is fixedly connected with a handheld rod 4, and the handheld rod 4 is arranged in an upward inclined manner.

The seed sowing pipe 2 is fixedly connected with a seed storage hopper 5, one end of the seed storage hopper 5 close to the seed sowing pipe 2 is fixedly communicated with a seed outlet pipe 51, the longitudinal section of the seed outlet pipe 51 is circular, and a seed outlet component 6 for controlling the seed outlet speed of the seed sowing pipe 2 is arranged on the seed outlet pipe 51. A supporting wheel 7 is all installed to the lower surface of every fixed mobile jib 11, and the distance between supporting wheel 7 and the 11 lower surfaces of fixed mobile jib is great, and the distance between the one end that fixed mobile jib 11 was kept away from to seeding pipe 2 and the 11 lower surfaces of fixed mobile jib is less to support the seeder, need operating personnel to keep lifting the possibility of seeder when reducing the seeding, saved the manpower.

When needs sow, operating personnel pours into the seed into seed storage hopper 5 in, then promotes handheld pole 4, and handheld pole 4 removes and drives three supporting wheel 7 and rotate to shift the seeder to the work site, and make every supporting wheel 7 all be located a planting ditch, every seeding pipe 2 all aligns with corresponding planting ditch this moment, and seeding pipe 2 keeps away from the one end of fixed mobile jib 11 and is located directly over planting the ditch.

Start out subassembly 6, go out the seed that 6 work of subassembly made in the seed storage fill 5 and fall to the seeding pipe 2, the seed in the seeding pipe 2 falls to planting the ditch along seeding pipe 2 in, operating personnel along the length direction pulling handheld pole 4 of planting the ditch when starting out subassembly 6, handheld pole 4 removes and drives fixed mobile jib 11 and removes, fixed mobile jib 11 removes and drives the removal of seeding pipe 2, the seed outflow that has of continuation in the seeding pipe 2 to realize the purpose of seeding.

When the interval between the planting ditch shortens, operating personnel can promote the fixed mobile jib 11 at both ends to the direction that is close to each other, compresses bellows 31 when two fixed mobile jibs 11 remove, makes the length of bellows 31 shorten, reaches the purpose of adjusting the interval between two adjacent fixed mobile jibs 11 at last. The fixed mobile jib 11 at both ends removes to drive and moves with the seeding pipe 2 and the supporting wheel 7 that fixed mobile jib 11 is corresponding, makes the distance between two adjacent seeding pipes 2 shorten to can adapt to the planting ditch of different intervals, improve the suitability of seeder.

Referring to fig. 2 and 3, the seed discharging assembly 6 includes a rotating wheel 61 installed inside the seed discharging pipe 51, the rotating wheel 61 includes two circular material plates 611, the two material plates 611 are arranged in line with the axis of the seed discharging pipe 51, and edges of the two material plates 611 contact with the inner wall of the seed discharging pipe 51. A plurality of partition plates 612 are fixedly connected between the two material plates 611, in this embodiment, the number of the partition plates 612 is four, the four partition plates 612 are equidistantly distributed along the circumferential direction of the material plates 611, the mutually-distant ends of the four partition plates 612 are all in contact with the side wall of the seed outlet pipe 51, a chamber 613 is formed between the two adjacent partition plates 612, a driving motor 62 for driving the rotating wheel 61 to rotate is fixedly connected to the outer wall of the seed outlet pipe 51, the driving motor 62 is a low-speed motor with a self-locking function, the output shaft of the driving motor 62 penetrates through the side wall of the seed outlet pipe 51 and is fixedly connected with the rotating wheel 61, and the axis of the output shaft of the driving motor 62 and the axis of the rotating wheel 61 are arranged in a collinear manner.

When needs sow, after operating personnel injects the seed into seed storage hopper 5, the seed in seed storage hopper 5 falls to chamber 613 along play seed tube 51, starts driving motor 62 after that, and driving wheel 61 is rotated in driving motor 62's the output shaft rotation, and the seed in chamber 613 falls to seeding pipe 2 in rotating wheel 61 pivoted, then falls to planting the ditch along seeding pipe 2 again. Because of the rotational speed of driving motor 62 is lower, make and rotate wheel 61 and carry out the rotation of low-speed to reduce the seed and fallen into the speed of sowing pipe 2, avoided the quick concentrated outflow of seed as far as possible, reduced the possibility of taking place extravagant seed.

The implementation principle of the embodiment 1 is as follows: when needs sow, operating personnel pours the seed into in to storing up kind fill 5, promotes handheld pole 4 after that, makes every kind of sowing pipe 2 respectively align with a planting ditch, then starts driving motor 62, and driving motor 62 drives and rotates wheel 61 and rotate to there is the seed to flow out in making kind of sowing pipe 2, operating personnel promotes handheld pole 4 simultaneously, makes the seeder remove along the length direction who plants the ditch.

When the interval between two adjacent planting ditches increases, to the fixed mobile jib 11 at the direction pulling both ends of keeping away from each other, make every seeding pipe 2 respectively align with a planting ditch, then start driving motor 62, have the seed to flow out in the seeding pipe 2, promote handheld pole 4 simultaneously, make the seeder remove along the length direction who plants the ditch.

When the interval of two adjacent planting ditches shortens, to the fixed mobile jib 11 that promotes both ends of the direction that is close to each other, fixed mobile jib 11 removes and drives seeding pipe 2 and removes to make every seeding pipe 2 respectively align with a planting ditch, start driving motor 62 at last and promote handheld pole 4, make the seeder remove along the length direction who plants the ditch.

Example 2

Referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that the fixing member 1 includes a horizontally disposed casing 12, and the distance adjusting assembly 3 includes two loop bars 32 each located at one side of the casing 12, and each loop bar 32 is inserted into the casing 12. Each sleeve rod 32 is provided with a plurality of positioning holes 321 on the same side wall facing the same direction, the positioning holes 321 are arranged along the length direction of the sleeve rod 32, two ends of the sleeve 12 are provided with pin holes 121 corresponding to one of the positioning holes 321, a limit pin 33 is inserted into each pin hole 121 and the corresponding positioning hole 321, and each limit pin 33 penetrates through the sleeve 12.

One of the support wheels 7 is mounted on the lower surface of the sleeve 12, and the other two support wheels 7 are each mounted on the lower surface of the corresponding loop bar 32. The three seeding pipes 2 are respectively arranged on the side walls of one loop bar 32, the sleeve 12 and the other loop bar 32, and the handheld rod 4 is fixedly connected on the top surface of the sleeve 12.

When the distance between two adjacent sowing pipes 2 needs to be adjusted, two limiting pins 33 are pulled to the outside of the sleeve 12 in sequence, so that the two limiting pins 33 are separated from the sleeve 12, and then the loop bars 32 are moved to the directions close to or away from each other, so that the distance between the two loop bars 32 is changed. The loop bar 32 removes and drives seeding pipe 2 and supporting wheel 7 and removes, make the interval between two adjacent seeding pipes 2 change, when every seeding pipe 2 all aligns with a corresponding planting ditch, stop to remove loop bar 32, every pinhole 121 aligns with a locating hole 321 this moment, align two spacer pins 33 and corresponding pinhole 121 and locating hole 321 in proper order then, then to the inside spacer pin 33 that promotes of sleeve pipe 12, make every spacer pin 33 all run through sleeve pipe 12, thereby the realization is sowed the purpose to the planting ditch of different intervals, the suitability of seeder has been improved.

The implementation principle of the embodiment 2 is as follows: when the distance between two adjacent seeding pipes 2 needs to be changed, the limiting pin 33 is pulled out, then the loop bar 32 is moved towards the direction close to or away from each other, the loop bar 32 moves to drive the seeding pipes 2 to move, and when each seeding pipe 2 is aligned with the corresponding planting ditch and the pin hole 121 is aligned with the corresponding positioning hole 321, the limiting pin 33 is pushed towards the inside of the sleeve 12, so that the limiting pin 33 penetrates through the sleeve 12.

Example 3

Referring to fig. 6 and 7, the present embodiment is different from embodiment 2 in that the fixing member 1 includes a horizontally disposed cross bar 13, the distance adjusting assembly 3 includes two sliding sleeves 34 sleeved on the cross bar 13, one seeding tube 2 is fixedly connected to a side wall of the cross bar 13, the seeding tube 2 is located between the two sliding sleeves 34, and the other two seeding tubes 2 are respectively fixedly connected to an outer side wall of one sliding sleeve 34. The sliding block 341 is fixedly connected to the inner top surface of each sliding sleeve 34, the sliding block 341 is a T-shaped sliding block 341, the top surface of the cross bar 13 is provided with a slide way 131 correspondingly arranged with the sliding block 341, the slide way 131 is arranged along the length direction of the cross bar 13, and the sliding block 341 is inserted into the slide way 131, so that the sliding sleeves 34 and the cross bar 13 can slide relatively.

The upper surface of horizontal pole 13 is equipped with two driving piece 35 that the drive sliding sleeve 34 takes place to remove, and lug 342 of fixedly connected with on the top surface of sliding sleeve 34, driving piece 35 including run through lug 342 and with lug 342 threaded connection's lead screw 351, lead screw 351 is the level setting, the length direction of lead screw 351 along the length direction setting of horizontal pole 13. The equal fixedly connected with roll adjustment motor 352 in both ends of horizontal pole 13, the output shaft of every roll adjustment motor 352 all with corresponding lead screw 351's one end fixed connection, two fixed blocks 132 of the top surface fixedly connected with of horizontal pole 13, every fixed block 132 is located all between two sliding sleeves 34, every lead screw 351 all runs through corresponding a fixed block 132, lead screw 351 rotates with corresponding fixed block 132 and is connected.

One of them supporting wheel 7 fixed connection is at the lower surface of horizontal pole 13, and supporting wheel 7 corresponds the setting with fixed connection seeding pipe 2 on horizontal pole 13, and two other supporting wheels 7 respectively fixed connection are at the lower surface of a sliding sleeve 34, and handheld pole 4 fixed connection is at the upper surface of horizontal pole 13, and handheld pole 4 is located between two fixed blocks 132.

When the distance between two adjacent seeding pipes 2 needs to be changed, two distance-adjusting motors 352 are started simultaneously, the distance-adjusting motors 352 rotate to drive the screw rods 351 to rotate, the screw rods 351 rotate to drive the protruding blocks 342 to move, the protruding blocks 342 move to drive the sliding sleeve 34 to move along the length direction of the cross rod 13, the sliding sleeve 34 moves to drive the seeding pipes 2 to move, the distance between the two adjacent seeding pipes 2 is changed, and in the moving process of the sliding sleeve 34, the sliding blocks 341 and the sliding rails 131 play a limiting role. When each seeding pipe 2 is aligned with the corresponding planting ditch, the distance-adjusting motor 352 is closed, so that the operator can adjust the distance between the seeding pipes 2 more conveniently according to the distance between the planting ditches, and the applicability of the seeding machine is improved.

The implementation principle of the embodiment 3 is as follows: when the interval between two adjacent seeding pipes 2 needs to be changed, two distance-adjusting motors 352 are started simultaneously, the distance-adjusting motors 352 drive the screw 351 to rotate, the screw 351 rotates to drive the sliding sleeve 34 and the seeding pipes 2 to move, and when each seeding pipe 2 is aligned with the corresponding planting ditch, the distance-adjusting motors 352 are closed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an adjustable interval drill seed seeder, the seeder includes mounting (1), and fixed connection has handheld pole (4) on mounting (1), is connected with a plurality of seeding pipes (2) on mounting (1), and fixed connection has seed storage fill (5) that communicate with seeding pipe (2) on seeding pipe (2), its characterized in that: a distance adjusting component (3) for adjusting the distance between two adjacent seeding pipes (2) is arranged between the fixing part (1) and the seeding pipes (2).

2. The adjustable spacing seed drill of claim 1, wherein: the fixing piece (1) comprises a plurality of fixed main rods (11) arranged at intervals, the distance adjusting assembly (3) comprises a corrugated pipe (31) arranged between two adjacent fixed main rods (11), each end of the corrugated pipe (31) is fixedly connected with one fixed main rod (11) close to each other, and each seeding pipe (2) is fixedly connected with one corresponding fixed main rod (11).

3. The adjustable spacing seed drill of claim 1, wherein: fixing piece (1) includes sleeve pipe (12), roll adjustment subassembly (3) include two loop bars (32), two loop bars (32) each are located the one end of sleeve pipe (12), every loop bar (32) all pegs graft with the one end that sleeve pipe (12) are close to mutually, equal fixed connection seed sowing pipe (2) on sleeve pipe (12) and every loop bar (32), a plurality of locating hole (321) have been seted up on loop bar (32), the length direction setting of loop bar (32) is followed in a plurality of locating holes (321), a pinhole (121) have all been seted up at each end of sleeve pipe (12), it is provided with a spacer pin (33) to pass pinhole (121) and locating hole (321), spacer pin (33) run through sleeve pipe (12).

4. The adjustable spacing seed drill of claim 1, wherein: fixing piece (1) is horizontal pole (13), and seeding pipe (2) of fixed connection on horizontal pole (13), still slide on horizontal pole (13) and cup jointed a plurality of sliding sleeves (34), and the length direction of horizontal pole (13) is arranged along a plurality of sliding sleeves (34), equal fixed connection seeding pipe (2) on every sliding sleeve (34), be equipped with on horizontal pole (13) with corresponding driving piece (35) of sliding sleeve (34) quantity.

5. The adjustable spacing seed drill of claim 4, wherein: the sliding sleeve is characterized in that a T-shaped sliding block (341) is fixedly connected to the inner top surface of the sliding sleeve (34), a slide way (131) is arranged on the top surface of the cross rod (13), and the slide way (131) is arranged along the length direction of the cross rod (13).

6. The adjustable spacing seed drill of claim 5, wherein: fixedly connected with lug (342) on the top surface of sliding sleeve (34), driving piece (35) including run through lug (342) and with lug (342) threaded connection's lead screw (351), fixedly connected with drive lead screw (351) pivoted roll adjustment motor (352) on horizontal pole (13).

7. The adjustable spacing seed drill of claim 1, wherein: a seed outlet pipe (51) is arranged at one end of the seed storage hopper (5) close to the seeding pipe (2), the longitudinal section of the seed outlet pipe (51) is circular, and a seed outlet assembly (6) for controlling the seed outflow speed is arranged at the seed outlet pipe (51).

8. The adjustable spacing seed drill of claim 7, wherein: the seed discharging assembly (6) comprises a rotating wheel (61) arranged inside the seed discharging pipe (51), the outer diameter of the rotating wheel (61) is matched with the inner diameter of the seed discharging pipe (51), a plurality of cavities (613) are arranged in the rotating wheel (61), and a driving motor (62) for driving the rotating wheel (61) to rotate is arranged on the seed storage hopper (5).

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