Seeder connecting device

Abstract

The utility model provides a seeder connecting device, and belongs to the technical field of agricultural equipment. The first connecting body comprises a first connecting face and a connecting boss, the connecting boss is arranged on the first connecting face and tightly attached to the second connecting body, and the connecting pin penetrates through the first connecting face, the second connecting body and the connecting boss. The connecting boss is arranged on the first connecting face and tightly attached to the second connecting body, and due to the fact that the connecting pin penetrates through the first connecting face, the second connecting body and the connecting boss, in the process that a traction machine drives the seeding machine to advance, due to cooperation of the connecting boss and the second connecting body, up-down fluctuation force of the seeding machine is decomposed into left-right swinging force. Seeds sowed by the sower can be better buried under the soil layer.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a seed drill connection device. Background Art

[0002] The seeder is used for sowing crops and is widely used in agricultural production. The seeder usually uses a power transmission device to tow the sowing device forward. During the forward movement, the sowing device buries the seeds in the soil. For example, Chinese patent CN202120666713.7, name: a hand-held traction type vegetable precision seeder, the connecting mechanism includes a C-shaped trailer, a traction rod and a connecting pin, the C-shaped trailer is fixedly installed on the bottom of the hand-held gasoline engine, and the C-shaped trailer is provided with a first through hole, the traction rod is fixedly installed on one end of the sowing frame, and one end of the traction rod has a hanging head adapted to the C-shaped trailer, and a second through hole is provided on the hanging head, the hanging head of the traction rod is clamped in the C-shaped trailer, and connected by the traction rod inserted in the through hole; through the connecting mechanism, the disassembly and assembly connection between the hand-held gasoline engine and the sowing device can be realized, and the disassembly and assembly operation is simple and convenient, and the demand for flexible steering can be met after connection. Although the above-mentioned connecting mechanism can connect the seeder to the walk-behind gasoline engine, in actual use, the seeder will fluctuate up and down due to the traction force of the connecting pin during its forward movement. The ups and downs cause the seeder to have inconsistent sowing depths and even fail to bury the seeds below the soil layer.

[0003] Therefore, there is an urgent need for a connection device that prevents the seed drill from rising and falling during the process of being pulled forward by a pulling machine. Utility Model Content

[0004] In view of this, the utility model proposes a connecting device to prevent the seeder from rising and falling during its movement, and a connecting device for the seeder with a consistent sowing depth.

[0005] The technical solution of the utility model is implemented as follows: a seed drill connecting device includes a first connecting body, a second connecting body and a connecting pin, the first connecting body includes a first connecting surface and a connecting boss, the connecting boss is arranged on the first connecting surface, the connecting boss is arranged close to the second connecting body, and the connecting pin passes through the first connecting surface, the second connecting body and the connecting boss.

[0006] On the basis of the above technical solution, preferably, the first connecting body further includes a second connecting surface and a third connecting surface, the first connecting surface and the second connecting surface are both arranged on the third connecting surface, and the connecting pin passes through the second connecting surface.

[0007] On the basis of the above technical solution, preferably, a sleeve is provided between the first connecting surface and the second connecting surface, and the connecting pin passes through the sleeve.

[0008] On the basis of the above technical solution, preferably, the first connecting surface and the second connecting surface are arranged parallel to each other, and the first connecting surface or the second connecting surface is arranged perpendicular to the third connecting surface.

[0009] On the basis of the above technical solution, preferably, the second connector includes a first connector plate, a second connector plate and a third connector plate, the first connector plate and the second connector plate are both arranged on the third connector plate, and the first connector is arranged between the first connector plate and the second connector plate.

[0010] On the basis of the above technical solution, preferably, the second connecting surface has a side where the connecting boss is disposed facing the first connecting plate, and the connecting boss is in close contact with the first connecting plate.

[0011] On the basis of the above technical solution, preferably, a first stacking block is provided on the first connecting plate, a second stacking block is provided on the second connecting plate, a first connecting groove is provided on the first stacking block, a second connecting groove is provided on the second stacking block, and the connecting pin passes through the first connecting groove and the second connecting groove.

[0012] Based on the above technical solution, preferably, the length of the first connecting groove in the length direction of the first connecting plate is greater than the length of the first connecting groove in the width direction of the first connecting plate; the length of the second connecting groove in the length direction of the second connecting plate is greater than the length of the first connecting groove in the width direction of the second connecting plate.

[0013] On the basis of the above technical solution, preferably, a limiting nut is further provided on the third connecting surface, and a limiting bolt is provided on the thread of the limiting nut.

[0014] On the basis of the above technical solution, preferably, an adjusting nut is provided on the limiting bolt in threaded cooperation.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The connecting boss is arranged on the first connecting surface, and the connecting boss is arranged closely to the second connecting body. Because the connecting pin passes through the first connecting surface, the second connecting body and the connecting boss, when the traction machine drives the seeder to move, the cooperation between the connecting boss and the second connecting body limits the ups and downs of the seeder, and the depth of the seeds sown by the seeder is consistent, and the seeds can be better buried under the soil layer;

[0017] (2) The connecting pin passes through the first connecting surface and the second connecting surface, and the connecting pin is fixed by the first connecting surface and the second connecting surface. At this time, the two positions are connected with the connecting pin, and the connection between the first connecting body and the second connecting body is more stable;

[0018] (3) A sleeve is provided between the first connecting surface and the second connecting surface, and the connecting pin passes through the sleeve. The sleeve further positions the connecting pin, thereby limiting the ups and downs of the seeder during its movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a front view of a seed drill according to the utility model;

[0021] Figure 2 This is a front view of a connection device for a seed drill according to the utility model;

[0022] Figure 3 It is a top view of a connecting device of a seed drill of the utility model;

[0023] Figure 4 This is a partial structural schematic diagram of a connection device for a seed drill according to the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the first connector of the utility model;

[0025] Figure 6 It is a three-dimensional diagram of the first connector of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-6As shown, a connecting device for a seed drill includes a first connecting body 1, a second connecting body 2 and a connecting pin 3. The first connecting body 1 includes a first connecting surface 11 and a connecting boss 14. The connecting boss 14 is arranged on the first connecting surface 11, and the connecting boss 14 is arranged close to the second connecting body 2. The connecting pin 3 passes through the first connecting surface 11, the second connecting body 2 and the connecting boss 14. Because the connecting boss 14 is arranged on the first connecting surface 11, and the connecting boss 14 is arranged close to the second connecting body 2, and because the connecting pin 3 passes through the first connecting surface 11, the second connecting body 2 and the connecting boss 14, when the traction machinery drives the seed drill to move, the up and down fluctuations of the seed drill during the sowing process are limited due to the cooperation between the connecting boss 14 and the second connecting body 2, and the seeds sown by the seed drill are of uniform depth and can be better buried below the soil layer.

[0028] The first connecting body 1 also includes a second connecting surface 12 and a third connecting surface 13. The first connecting surface 11 and the second connecting surface 12 are both arranged on the third connecting surface 13. The connecting pin 3 passes through the second connecting surface 12. The connecting pin 3 passes through the first connecting surface 11 and the second connecting surface 12. The connecting pin 3 is fixed by the first connecting surface 11 and the second connecting surface 12. At this time, the two positions are connected to the connecting pin 3, and the connection between the first connecting body 1 and the second connecting body 2 is more stable.

[0029] A sleeve 15 is provided between the first connection surface 11 and the second connection surface 12, and the connecting pin 3 passes through the sleeve 15. In order to position the connecting pin 3 and avoid the ups and downs during the movement of the seeder, a sleeve 15 is provided between the first connection surface 11 and the second connection surface 12, and the connecting pin 3 passes through the sleeve 15. The sleeve 15 further positions the connecting pin 3 and limits the ups and downs during the movement of the seeder.

[0030] The first connection surface 11 and the second connection surface 12 are arranged parallel to each other, and the first connection surface 11 or the second connection surface 12 is arranged perpendicular to the third connection surface 13. When the first connection surface 11 and the second connection surface 12 are arranged parallel to each other, the force applied by the first connection surface 11 and the second connection surface 12 to the connection pin 3 is more balanced; when the first connection surface 11 or the second connection surface 12 is arranged perpendicular to the third connection surface 13, the overall mechanical structure of the first connector 1 is more reasonable and the service life is longer.

[0031] The second connector 2 includes a first connector plate 21, a second connector plate 22 and a third connector plate 23, wherein the first connector plate 21 and the second connector plate 22 are both arranged on the third connector plate 23, and the first connector 1 is arranged between the first connector plate 21 and the second connector plate 22. The second connector 2 has a similar structure to the first connector 1, and both sides are U-shaped. The connecting pin 3 also passes through the first connector plate 21 and the second connector plate 22 at the same time, and the connection strength and stability are also enhanced at the same time.

[0032] The second connection surface 12 is provided with a connection boss 14 on one side facing the first connection plate 21, and the connection boss 14 is in close contact with the first connection plate 21. The connection boss 14 is in close contact with the first connection plate 21 in order to better raise the first connector 1 and ensure that the planter is allowed to swing left and right in the direction of travel and limit the up and down movement of the planter.

[0033] Since the position where the connecting pin 3 is inserted into the first connecting plate 21 and the second connecting plate 22 is subjected to a large traction force during use, in order to prevent the large traction force from tearing the first connecting plate 21 and the second connecting plate 22, a preferred method is that the first connecting plate 21 is provided with a first superimposed block 211, the second connecting plate 22 is provided with a second superimposed block 221, the first superimposed block 211 is provided with a first connecting groove 212, the second superimposed block 221 is provided with a second connecting groove 222, and the connecting pin 3 passes through the first connecting groove 212 and the second connecting groove 222. The first superimposed block 211 and the second superimposed block 221 increase the thickness of the contact position between the first connecting groove 212 and the second connecting groove 222 and the connecting pin 3, so as to prevent the traction force from tearing the first connecting plate 21 and the second connecting plate 22.

[0034] The length of the first connecting groove 212 in the length direction of the first connecting plate 21 is greater than the length of the first connecting groove 212 in the width direction of the first connecting plate 21; the length of the second connecting groove 222 in the length direction of the second connecting plate 22 is greater than the length of the first connecting groove 212 in the width direction of the second connecting plate 22. The connecting pin 3 can swing in the first connecting groove 212 and the second connecting groove 222, ensuring that the seeder floats with the terrain and also limiting the ups and downs of the seeder.

[0035] The third connection surface 13 is also provided with a limit nut 131, and the limit nut 131 is threadedly matched with a limit bolt 132. The limit bolt 132 is threadedly matched with an adjustment nut 133. The length of the limit bolt 132 is adjusted as needed, so that the first connector 1 and the second connector 2 can rotate, and the rotation angle of the first connector 1 and the second connector 2 is controlled.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seed drill connection device, characterized in that: The invention comprises a first connecting body (1), a second connecting body (2) and a connecting pin (3); the first connecting body (1) comprises a first connecting surface (11) and a connecting boss (14); the connecting boss (14) is arranged on the first connecting surface (11); the connecting boss (14) is arranged in close contact with the second connecting body (2); and the connecting pin (3) passes through the first connecting surface (11), the second connecting body (2) and the connecting boss (14).

2. A seed drill connection device as claimed in claim 1, characterized in that: The first connecting body (1) further comprises a second connecting surface (12) and a third connecting surface (13); the first connecting surface (11) and the second connecting surface (12) are both arranged on the third connecting surface (13); and the connecting pin (3) passes through the second connecting surface (12).

3. A seed drill connection device as claimed in claim 2, characterized in that: A sleeve (15) is provided between the first connecting surface (11) and the second connecting surface (12), and the connecting pin (3) passes through the sleeve (15).

4. A seed drill connection device as claimed in claim 2, characterized in that: The first connecting surface (11) and the second connecting surface (12) are arranged parallel to each other, and the first connecting surface (11) or the second connecting surface (12) and the third connecting surface (13) are arranged perpendicularly.

5. A seed drill connection device as claimed in claim 3, characterized in that: The second connecting body (2) comprises a first connecting plate (21), a second connecting plate (22) and a third connecting plate (23); the first connecting plate (21) and the second connecting plate (22) are both arranged on the third connecting plate (23); and the first connecting body (1) is arranged between the first connecting plate (21) and the second connecting plate (22).

6. A seed drill connection device as claimed in claim 5, characterized in that: The second connection surface (12) has a side on which the connection boss (14) is arranged facing the first connection plate (21), and the connection boss (14) is in close contact with the first connection plate (21).

7. A seed drill connection device as claimed in claim 5, characterized in that: The first connecting plate (21) is provided with a first stacking block (211), the second connecting plate (22) is provided with a second stacking block (221), the first stacking block (211) is provided with a first connecting groove (212), the second stacking block (221) is provided with a second connecting groove (222), and the connecting pin (3) passes through the first connecting groove (212) and the second connecting groove (222).

8. A seed drill connection device as claimed in claim 7, characterized in that: The length of the first connecting groove (212) in the length direction of the first connecting plate (21) is greater than the length of the first connecting groove (212) in the width direction of the first connecting plate (21); the length of the second connecting groove (222) in the length direction of the second connecting plate (22) is greater than the length of the first connecting groove (212) in the width direction of the second connecting plate (22).

9. A seed drill connection device as claimed in claim 2, characterized in that: A limiting nut (131) is also provided on the third connection surface (13), and a limiting bolt (132) is provided in threaded cooperation with the limiting nut (131).

10. A seed drill connection device as claimed in claim 9, characterized in that: The limiting bolt (132) is threadedly provided with an adjusting nut (133).

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