阅读说明：本技术 一种基于动力机械用的快拆式开沟机体 (Quick detach formula ditching organism based on power machinery is used ) 是由 邓燕 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种基于动力机械用的快拆式开沟机体,包括连接块和升降机构,升降机构由连接盒、齿轮、升降杆和多个第一齿牙组成,连接盒的正面与连接块的背面固定连接,齿轮转动连接于连接盒的内部,升降杆的设置于连接盒的背面,多个第一齿牙固定连接于升降杆的正面,齿轮的外壁与多个第一齿牙的外壁啮合连接,连接盒的内部设置有弧形板,多个弧形板的背面固定连接有多个第二齿牙。本发明利用升降杆、齿轮、第一齿牙和第二齿牙的设置,通过第一齿牙和齿轮和配合,使得升降杆得以升降进行调节,再通过第二齿牙与齿轮外壁的啮合,对齿轮进行定位,从而使得升降杆进行定位,即可完成对开沟铲的高度调节,提高了开沟铲使用的便捷性。(The invention discloses a quick-release type ditching machine body based on a power machine, which comprises a connecting block and a lifting mechanism, wherein the lifting mechanism consists of a connecting box, a gear, a lifting rod and a plurality of first teeth, the front surface of the connecting box is fixedly connected with the back surface of the connecting block, the gear is rotatably connected inside the connecting box, the lifting rod is arranged on the back surface of the connecting box, the plurality of first teeth are fixedly connected to the front surface of the lifting rod, the outer wall of the gear is meshed and connected with the outer walls of the plurality of first teeth, an arc-shaped plate is arranged inside the connecting box, and the back surfaces of the plurality of arc-shaped plates are fixedly connected with a plurality of second teeth. According to the invention, the lifting rod is lifted and adjusted by utilizing the arrangement of the lifting rod, the gear, the first tooth and the second tooth and the cooperation of the first tooth and the gear, and the gear is positioned by meshing the second tooth with the outer wall of the gear, so that the lifting rod is positioned, the height adjustment of the ditching shovel can be completed, and the convenience in use of the ditching shovel is improved.)

1. The utility model provides a quick detach formula ditching organism based on power machinery is used which characterized in that includes:

the ditching machine comprises a connecting block (1), wherein a ditching mechanism is arranged below the connecting block (1);

the lifting mechanism consists of a connecting box (2), a gear (3), a lifting rod (4) and a plurality of first teeth (5), the front surface of the connecting box (2) is fixedly connected with the back surface of a connecting block (1), the gear (3) is rotatably connected in the connecting box (2), the lifting rod (4) is arranged on the back surface of the connecting box (2), the first teeth (5) are fixedly connected with the front surface of the lifting rod (4), a movable groove (6) is formed in the back surface of the connecting box (2), the outer wall of the gear (3) penetrates through the inside of the movable groove (6) and is meshed with the outer walls of the first teeth (5), an arc-shaped plate (7) is arranged in the connecting box (2), the arc-shaped plate (7) is fixedly connected with a plurality of second teeth (8), and the outer wall of the second teeth (8) is meshed with the outer wall of the gear (3), a first connecting mechanism is arranged between the arc-shaped plate (7) and the inner wall of the connecting box (2), a second connecting mechanism is arranged between the connecting box (2) and the lifting rod (4), and a locking mechanism is arranged on the front surface of the connecting box (2);

the adjusting mechanism is arranged on the back of the lifting rod (4).

2. The quick-release type ditching machine body based on power machinery is characterized in that the connecting mechanism comprises a movable rod (9), a sliding plate (11) is fixedly connected to the front face of the arc-shaped plate (7), the sliding plate (11) is slidably connected to the inner wall of the connecting box (2), the movable rod (9) is fixedly connected to the front face of the sliding plate (11), a movable hole is formed in the front face of the connecting box (2), the outer wall of the movable rod (9) is movably connected with the inner wall of the movable hole in an inserting mode, a reset spring (10) is sleeved on the outer portion of the movable rod (9), one end of the reset spring (10) is fixedly connected with the inner wall of the connecting box (2), and the other end of the reset spring (10) is fixedly connected with the front face of the sliding plate (11).

3. The quick-release type ditching machine body based on the power machine is characterized in that the locking mechanism comprises an extrusion block (12), the extrusion block (12) is arranged on the front face of the connecting box (2) in a sliding manner, rectangular frames (13) are fixedly connected to two sides of the connecting box (2), two first sliding blocks (14) are fixedly connected to the back face of the extrusion block (12), the outer walls of the two first sliding blocks (14) are connected with the inner walls of the two rectangular frames (13) in a sliding manner, and first limiting blocks (15) are fixedly connected to the back faces of the two first sliding blocks (14) and are located at the back face positions of the rectangular frames (13).

4. The quick-release type ditching machine body based on power machinery is characterized in that the second connecting mechanism comprises two second sliding blocks (17), the two second sliding blocks (17) are fixedly connected to the back of the connecting box (2), two sliding grooves (16) are formed in the front of the lifting rod (4), the outer walls of the two second sliding blocks (17) are respectively connected with the inner walls of the two sliding grooves (16) in a sliding manner, limiting grooves (18) are formed in the back of the inner walls of the two sliding grooves (16), second limiting blocks (19) are fixedly connected to the back of the two second sliding blocks (17), and the outer walls of the two second limiting blocks (19) are respectively connected with the inner walls of the two limiting grooves (18) in a sliding manner.

5. The quick-release type ditching machine body based on the power machine is characterized in that the ditching mechanism comprises a connecting strip (20), the connecting strip (20) is arranged below a lifting rod (4), a connecting shovel (21) and a ditching shovel (22) are arranged on the front face of the connecting strip (20), the ditching shovel (22) is arranged at the bottom end of the connecting shovel (21), a first rotating mechanism is arranged at the top end of the connecting strip (20), and a mounting mechanism is arranged on the front face of the connecting strip (20).

6. The quick-release type ditching machine body for power machinery as claimed in claim 5, the mounting mechanism comprises a positioning groove (23), a first positioning block (24) and a second positioning block (25), the positioning groove (23) is arranged on the front surface of the connecting strip (20), the first positioning block (24) is fixedly connected to the back surface of the connecting shovel (21), the second positioning block (25) is fixedly connected to the back of the furrowing shovel (22), the outer walls of the first positioning block (24) and the second positioning block (25) are respectively movably connected with the inner wall of the positioning groove (23) in a penetrating manner, two mounting plates (26) are fixedly connected with both sides of the connecting strip (20), the front surfaces of the mounting plates (26) are provided with first mounting holes (27), two second mounting holes (28) are formed in the front faces of the connecting shovel (21) and the ditching shovel (22).

7. The quick-release type ditching machine body based on the power machine is characterized in that the first rotating mechanism comprises two first fixing plates (29), the two first fixing plates (29) are fixedly connected to the bottom end of the lifting rod (4), a first rotating shaft (30) is rotatably connected between the two first fixing plates (29), and the outer wall of the first rotating shaft (30) is fixedly connected with the top end of the connecting strip (20).

8. The quick-release type ditching machine body based on the power machine is characterized in that the adjusting mechanism comprises a screw rod (33), a rotating block (31) is arranged on the back surface of the lifting rod (4), a second rotating mechanism is arranged between the rotating block (31) and the lifting rod (4), a threaded hole (32) is formed in the top end of the rotating block (31), the inner wall of the threaded hole (32) is in threaded connection with the outer wall of the screw rod (33), a knob (34) is fixedly connected to the top end of the screw rod (33), a connecting rod (35) is arranged below the screw rod (33), the front surface of the connecting rod (35) is fixedly connected with the back surface of the connecting strip (20), and a third rotating mechanism is arranged between the screw rod (33) and the connecting rod (35).

9. The quick-release type ditching machine body based on power machinery is characterized in that the second rotating mechanism comprises two second fixing plates (36), the two second fixing plates (36) are both fixedly connected to the back of the lifting rod (4), the two sides of the two rotating blocks (31) are both fixedly connected with second rotating shafts (37), and the outer walls of the second rotating shafts (37) are fixedly connected with one sides of the second fixing plates (36).

10. The quick-release type ditching machine body based on power machinery is characterized in that the third rotating mechanism comprises a U-shaped frame (38), the U-shaped frame (38) is sleeved outside the connecting rod (35), the bottom end of the screw rod (33) is rotatably connected with the top end of the U-shaped frame (38), third rotating shafts (39) are fixedly connected to two sides of the connecting rod (35), and one ends of the two third rotating shafts (39) are respectively rotatably connected with the inner wall of the U-shaped frame (38).

Technical Field

The invention relates to the field of mechanical ditching, in particular to a quick-release type ditching machine body based on power machinery.

Background

In the agricultural production process, the subsequent sowing operation can be carried out only by carrying out ditching treatment on the land, and most of the prior ditching treatment is to drive a ditching shovel to move through a driving device so as to ditch in the land.

Present ditching shovel is direct to be installed on drive arrangement through the bolt, accomplishes the back at the ditching, can dismantle the ditching shovel fast and clear up, and the ditching shovel carries out altitude mixture control through the pivoted mode to the ditching shovel after on actuating mechanism, but the scope that this kind of pivoted mode carried out altitude mixture control is less, can't set up the ditch of more different degree of depth, still need change the ditching shovel because of the degree of depth requirement of ditch during the use, has reduced the convenience that the ditching shovel used.

Disclosure of Invention

The invention aims to provide a quick-release type ditching machine body based on a power machine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a quick detach formula ditching organism based on power machinery is used includes:

the ditching mechanism is arranged below the connecting block;

the lifting mechanism consists of a connecting box, a gear, a lifting rod and a plurality of first teeth, the front surface of the connecting box is fixedly connected with the back surface of the connecting block, the gear is rotationally connected inside the connecting box, the lifting rod is arranged on the back surface of the connecting box, the first teeth are fixedly connected to the front surface of the lifting rod, the back of the connecting box is provided with a movable groove, the outer wall of the gear penetrates through the inner part of the movable groove and is meshed and connected with the outer walls of the first teeth, the inner part of the connecting box is provided with an arc-shaped plate, the back surfaces of the arc-shaped plates are fixedly connected with a plurality of second teeth, the outer walls of the second teeth are meshed and connected with the outer wall of the gear, a first connecting mechanism is arranged between the arc-shaped plate and the inner wall of the connecting box, a second connecting mechanism is arranged between the connecting box and the lifting rod, and a locking mechanism is arranged on the front side of the connecting box;

and the adjusting mechanism is arranged on the back of the lifting rod.

Preferably, coupling mechanism includes the movable rod, the positive fixedly connected with slide of arc, slide sliding connection is in the inner wall of connecting box, movable rod fixed connection is in the front of slide, the activity hole has been seted up in the front of connecting box, the outer wall of movable rod is connected with the inner wall activity interlude of activity hole the outside cover of movable rod is equipped with reset spring, reset spring's one end and the inner wall fixed connection of connecting box, reset spring's the other end and the positive fixed connection of slide.

Preferably, locking mechanism includes the extrusion piece, the extrusion piece slides and sets up in the front of connecting box, the equal fixedly connected with rectangle frame in both sides of connecting box, two first sliders of back fixedly connected with of extrusion piece, two the outer wall of first slider and the inner wall sliding connection of two rectangle frames, two the back of first slider just is located the first stopper of back position department fixedly connected with of rectangle frame.

Preferably, the second connecting mechanism comprises two second sliding blocks and two second sliding blocks which are fixedly connected to the back of the connecting box, two sliding grooves are formed in the front face of the lifting rod, the outer wall of each second sliding block is connected with the inner wall of each sliding groove in a sliding mode, the inner wall of each sliding groove is connected with the back of the corresponding sliding groove in a sliding mode, a limiting groove is formed in the back of each sliding groove, the back of each second sliding block is fixedly connected with a second limiting block, and the outer wall of each second limiting block is connected with the inner wall of each limiting groove in a sliding mode.

Preferably, the ditching mechanism includes the connecting strip, the connecting strip sets up in the below of lifter, the front of connecting strip is provided with connection shovel and ditching shovel, the ditching shovel sets up in the bottom of connecting the shovel, the top of connecting strip sets up first slewing mechanism, the front of connecting strip is provided with installation mechanism.

Preferably, installation mechanism includes constant head tank, first locating piece and second locating piece, the constant head tank is seted up in the front of connecting strip, first locating piece fixed connection is in the back of connecting the shovel, second locating piece fixed connection is in the back of ditching shovel, the outer wall of first locating piece and second locating piece is connected with the inner wall activity interlude of constant head tank respectively, two mounting panels of the equal fixedly connected with in both sides of connecting strip, it is a plurality of first mounting hole has all been seted up in the front of mounting panel, two second mounting holes have all been seted up in the front of connecting shovel and ditching shovel.

Preferably, the first rotating mechanism comprises two first fixing plates, the two first fixing plates are fixedly connected to the bottom end of the lifting rod, a first rotating shaft is rotatably connected between the two first fixing plates, and the outer wall of the first rotating shaft is fixedly connected with the top end of the connecting strip.

Preferably, adjustment mechanism includes the screw rod, the back of lifter is provided with changes the piece, be provided with second slewing mechanism between commentaries on classics piece and the lifter, the top of changeing the piece is seted up threaded hole, the inner wall of threaded hole and the outer wall threaded connection of screw rod, the top fixedly connected with knob of screw rod, the below of screw rod is provided with the connecting rod, the front of connecting rod and the back fixed connection of connecting strip, be provided with third slewing mechanism between screw rod and the connecting rod.

Preferably, the second slewing mechanism includes two second fixed plates, two the equal fixed connection of second fixed plate is in the back of lifter, two the equal fixedly connected with second pivot in both sides of commentaries on classics piece, the outer wall of second pivot and one side fixed connection of second fixed plate.

Preferably, the third slewing mechanism includes U type frame, the outside of connecting rod is located to U type frame cover, the bottom of screw rod is rotated with the top of U type frame and is connected, the equal fixedly connected with third pivot in both sides of connecting rod, two the one end of third pivot is rotated with the inner wall of U type frame respectively and is connected.

The invention has the technical effects and advantages that:

(1) according to the invention, the lifting rod is lifted and adjusted by utilizing the arrangement of the lifting rod, the gear, the first tooth and the second tooth and the cooperation of the first tooth and the gear, and the gear is positioned by meshing the second tooth with the outer wall of the gear, so that the lifting rod is positioned, the height adjustment of the ditching shovel can be completed, and the convenience in use of the ditching shovel is improved;

(2) according to the invention, the arrangement of the positioning groove, the first positioning block and the second positioning block is utilized, the first positioning block and the second positioning block are inserted into the positioning groove to position the connecting shovel and the ditching shovel, so that the direct connecting strength of the connecting shovel and the ditching shovel and the connecting strip is enhanced, the phenomenon that the connecting part of the connecting shovel and the connecting strip is broken due to the fact that the connecting shovel and the ditching shovel are stressed too much during ditching is avoided, and the use stability of the ditching shovel is improved;

(3) according to the invention, by means of the arrangement of the screw rod, the rotating block and the connecting rod, the screw rod is lifted through the rotation of the screw rod in the rotating block, so that the connecting rod is moved by the movement of the screw rod, the height of the connecting shovel can be adjusted within a small range, and the convenience in use of the ditching shovel is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a side sectional structural schematic view of the connection box of the present invention.

Fig. 3 is a schematic view of the enlarged structure at a point a in fig. 1 according to the present invention.

Fig. 4 is a schematic perspective view of the connecting strip of the present invention.

FIG. 5 is a schematic side view of a connecting strip of the present invention in partial cross-section.

FIG. 6 is a schematic view of the enlarged structure at B of FIG. 1 according to the present invention

Fig. 7 is a partially enlarged structural view of the invention at C of fig. 1.

Fig. 8 is a schematic view of the enlarged structure at the position D of fig. 1 according to the present invention.

In the figure: 1. connecting blocks; 2. a connection box; 3. a gear; 4. a lifting rod; 5. a first tooth; 6. a movable groove; 7. an arc-shaped plate; 8. a second tooth; 9. a movable rod; 10. a return spring; 11. a slide plate; 12. extruding the block; 13. a rectangular frame; 14. a first slider; 15. a first stopper; 16. a chute; 17. a second slider; 18. a limiting groove; 19. a second limiting block; 20. a connecting strip; 21. connecting a shovel; 22. ditching and shoveling; 23. positioning a groove; 24. a first positioning block; 25. a second positioning block; 26. mounting a plate; 27. a first mounting hole; 28. a second mounting hole; 29. a first fixing plate; 30. a first rotating shaft; 31. rotating the block; 32. a threaded hole; 33. a screw; 34. a knob; 35. a connecting rod; 36. a second fixing plate; 37. a second rotating shaft; 38. a U-shaped frame; 39. and a third rotating shaft.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a quick-release type ditching machine body based on power machinery, which comprises a connecting block 1, wherein a ditching mechanism is arranged below the connecting block 1;

the lifting mechanism comprises a connecting box 2, a gear 3, a lifting rod 4 and a plurality of first teeth 5, the front side of the connecting box 2 is fixedly connected with the back side of a connecting block 1, the gear 3 is rotatably connected inside the connecting box 2, the lifting rod 4 is arranged on the back side of the connecting box 2, the first teeth 5 are fixedly connected with the front side of the lifting rod 4, a movable groove 6 is arranged on the back side of the connecting box 2, the outer wall of the gear 3 penetrates through the inner part of the movable groove 6 and is meshed and connected with the outer walls of the first teeth 5, an arc-shaped plate 7 is arranged inside the connecting box 2, the back side of the arc-shaped plate 7 is fixedly connected with a plurality of second teeth 8, the outer walls of the second teeth 8 are meshed and connected with the outer wall of the gear 3, the lifting rod 4 can move up and down by the meshing of the outer wall of the gear 3 and the first teeth 5, the lifting rod 4 moves up and down after moving to a required position, the gear 3 can be positioned, so that the gear 3 does not rotate any more, the lifting rod 4 can be positioned under the meshing limit of the gear 3 on the first tooth 5, the height of the lower ditching shovel 22 is adjusted and positioned, a first connecting mechanism is arranged between the arc-shaped plate 7 and the inner wall of the connecting box 2, a second connecting mechanism is arranged between the connecting box 2 and the lifting rod 4, and a locking mechanism is arranged on the front surface of the connecting box 2;

the connecting mechanism comprises a movable rod 9, a sliding plate 11 is fixedly connected to the front of the arc-shaped plate 7, the sliding plate 11 is connected to the inner wall of the connecting box 2 in a sliding manner, the movable rod 9 is fixedly connected to the front of the sliding plate 11, a movable hole is formed in the front of the connecting box 2, the movable rod 9 applies force to the sliding plate 11 under the action of external force, the arc-shaped plate 7 is stressed, so that the second tooth 8 can be moved to be meshed with the outer wall of the gear 3, the gear 3 can be positioned and fixed and does not rotate any more, a return spring 10 is sleeved outside the movable rod 9 in a movably penetrating manner between the outer wall of the movable rod 9 and the inner wall of the movable hole, one end of the return spring 10 is fixedly connected with the inner wall of the connecting box 2, the other end of the return spring 10 is fixedly connected with the front of the sliding plate 11, the sliding plate 11 always has force to the front of the connecting box 2 under the elastic action of the return spring 10, the sliding plate 11 can move to drive the second tooth 8 to be separated from the outer wall of the gear 3 without the action of external force, thereby releasing the limit of the gear 3 and enabling the lifting rod 4 to be lifted and moved;

the locking mechanism comprises an extrusion block 12, the extrusion block 12 is arranged on the front surface of the connecting box 2 in a sliding manner, rectangular frames 13 are fixedly connected on both sides of the connecting box 2, two first sliding blocks 14 are fixedly connected on the back surface of the extrusion block 12, the outer walls of the two first sliding blocks 14 are connected with the inner walls of the two rectangular frames 13 in a sliding manner, first limiting blocks 15 are fixedly connected on the back surfaces of the two first sliding blocks 14 and the positions of the back surfaces of the rectangular frames 13, the first sliding block 14 is limited by the first limiting block 15, so that the extrusion block 12 is always positioned on the front surface of the connecting box 2, when the movable rod 9 is pushed by hand to extend the return spring 10, meanwhile, the second tooth 8 moves to be meshed with the outer wall of the gear 3, and then the extrusion block 12 slides downwards, so that the extrusion block 12 is propped against the movable rod 9, therefore, the movable rod 9 is limited, so that the movable rod 9 cannot extend out of the movable hole, and the second tooth 8 can be positioned;

the second connecting mechanism comprises two second sliding blocks 17, the two second sliding blocks 17 are fixedly connected to the back of the connecting box 2, the front of the lifting rod 4 is provided with two sliding grooves 16, the outer walls of the two second sliding blocks 17 are respectively in sliding connection with the inner walls of the two sliding grooves 16, the back of the inner walls of the two sliding grooves 16 is provided with a limiting groove 18, the back of the two second sliding blocks 17 is fixedly connected with a second limiting block 19, the outer walls of the two second limiting blocks 19 are respectively in sliding connection with the inner walls of the two limiting grooves 18, the second limiting block 19 is limited through the inner walls of the limiting grooves 18, so that the second sliding blocks 17 can always slide in the sliding grooves 16 and cannot be separated from the sliding grooves 16, the connecting box 2 and the lifting rod 4 can always be in a connected state, and the lifting rod 4 can slide up and down on the back of the connecting box 2;

the ditching mechanism comprises a connecting strip 20, the connecting strip 20 is arranged below the lifting rod 4, a connecting shovel 21 and a ditching shovel 22 are arranged on the front face of the connecting strip 20, the ditching shovel 22 is arranged at the bottom end of the connecting shovel 21, the ditching shovel 22 is inserted into the soil during ditching, the ditching shovel 22 can be driven to move to ditch under the driving of an external driving device, a first rotating mechanism is arranged at the top end of the connecting strip 20, and an installation mechanism is arranged on the front face of the connecting strip 20;

the mounting mechanism comprises a positioning groove 23, a first positioning block 24 and a second positioning block 25, the positioning groove 23 is arranged on the front surface of the connecting strip 20, the first positioning block 24 is fixedly connected to the back surface of the connecting shovel 21, the second positioning block 25 is fixedly connected to the back surface of the furrowing shovel 22, the outer walls of the first positioning block 24 and the second positioning block 25 are movably connected with the inner wall of the positioning groove 23 in a penetrating manner respectively, two mounting plates 26 are fixedly connected to both sides of the connecting strip 20, first mounting holes 27 are formed in the front surfaces of the mounting plates 26, two second mounting holes 28 are formed in the front surfaces of the connecting shovel 21 and the furrowing shovel 22, after the first mounting holes 27 are aligned with the corresponding second mounting holes 28, the bolts pass through the corresponding first mounting holes 27 and second mounting holes 28, the bolts are positioned through nuts, and the connecting shovel 21 and the furrowing shovel 22 can be mounted on the connecting strip 20, meanwhile, the first positioning block 24 and the second positioning block 25 are inserted into the positioning groove 23, so that the connection strength between the furrowing blade 22 and the connecting blade 21 and the connecting strip 20 is increased, and the bolts for mounting the furrowing blade 22 and the connecting blade 21 cannot be broken;

the first rotating mechanism comprises two first fixing plates 29, the two first fixing plates 29 are fixedly connected to the bottom end of the lifting rod 4, a first rotating shaft 30 is rotatably connected between the two first fixing plates 29, the outer wall of the first rotating shaft 30 is fixedly connected with the top end of the connecting strip 20, and the first rotating shaft 30 rotates between the two first fixing plates 29, so that the connecting strip 20 can rotate, the furrowing blade 22 can rotate, and the height of the furrowing blade 22 can be adjusted within a small range;

an adjusting mechanism, the adjusting mechanism is arranged on the back of the lifting rod 4, the adjusting mechanism comprises a screw 33, a rotating block 31 is arranged on the back of the lifting rod 4, a second rotating mechanism is arranged between the rotating block 31 and the lifting rod 4, a threaded hole 32 is formed in the top end of the rotating block 31, the inner wall of the threaded hole 32 is in threaded connection with the outer wall of the screw 33, a knob 34 is fixedly connected to the top end of the screw 33, a connecting rod 35 is arranged below the screw 33, the front face of the connecting rod 35 is fixedly connected with the back face of the connecting strip 20, a third rotating mechanism is arranged between the screw 33 and the connecting rod 35, the screw 33 rotates in the rotating block 31 through the screw 33, so that the screw 33 is lifted, the lifting of the screw 33 drives the connecting rod 35 to move, so that the ditching shovel 22 can be directly rotated and adjusted, meanwhile, the thread on the inner wall of the threaded hole 32 is limited with the outer wall of the screw 33, so that the rotated ditching shovel 22 is positioned, the convenience of adjustment of the furrowing blade 22 is improved;

the second rotating mechanism comprises two second fixing plates 36, the two second fixing plates 36 are fixedly connected to the back of the lifting rod 4, the two sides of the two rotating blocks 31 are fixedly connected with second rotating shafts 37, the outer walls of the second rotating shafts 37 are fixedly connected with one sides of the second fixing plates 36, the third rotating mechanism comprises a U-shaped frame 38, the U-shaped frame 38 is sleeved outside the connecting rod 35, the bottom end of the screw 33 is rotatably connected with the top end of the U-shaped frame 38, the two sides of the connecting rod 35 are fixedly connected with third rotating shafts 39, one ends of the two third rotating shafts 39 are respectively rotatably connected with the inner walls of the U-shaped frame 38, and the two second fixing plates 36 are rotated through the rotating blocks 31, meanwhile, the connecting rod 35 can rotate in the U-shaped frame 38, so that when the ditching shovel 22 is adjusted through the screw 33, the phenomenon of clamping during rotation cannot occur, and the ditching shovel 22 is adjusted more smoothly.

The working principle of the invention is as follows: when the height of the furrowing blade 22 needs to be adjusted, the extrusion block 12 slides upwards to enable the first sliding block 14 to move in the rectangular frame 13, along with the upward movement of the extrusion block 12, the extrusion block 12 is not contacted with the movable rod 9 any more, under the elastic action of the return spring 10, the sliding plate 11 moves towards the front of the connecting box 2, so that the second teeth 8 are driven to move to be separated from the outer wall of the gear 3, the lifting rod 4 is held by hand to move the lifting rod 4 up and down, so that the height of the furrowing blade 22 is adjusted, when the lifting rod 4 is adjusted to move, the gear 3 can rotate due to the meshing of the first teeth 5 and the outer wall of the gear 3 until the furrowing blade 22 can move, when the furrowing blade 22 is adjusted to a proper height, the lifting rod 4 stops moving, the movable rod 9 is pressed, so that the movable rod 9 moves towards the inside the connecting box 2, and meanwhile, the movable rod 9 moves to drive the sliding plate 11 to move, slide 11 removes and makes 7 drive second tooth 8 removals of arc to make the outer wall meshing of second tooth 8 and gear 3, the extrusion piece 12 of sliding downwards, make extrusion piece 12 support the top of connecting block 1, extrusion piece 12 also removes the front to movable rod 9 this moment, makes to carry on spacingly to movable rod 9, makes movable rod 9 can't the carriage release lever again, accomplishes ditching shovel 22's altitude mixture control promptly.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.