JPH06904Y2 - Soil fertilizer applicator - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is to move along a crop strip in a field,
It relates to a soil fertilizer applicator that applies fertilizer to the soil between crop rows.

2. Description of the Related Art Conventionally, soil fertilizer applicators that apply liquid, paste-like, or granular fertilizer to the soil between crop rows while moving along the crop rows in the field have already been known and put to practical use. Has been done.

Problems to be Solved by the Invention By the way, in the conventional fertilizer applicator of this type, a check valve (check valve) is provided in the flow path of the fertilizer application nozzle for injecting fertilizer into the soil, and the fertilizer application nozzle is interrupted when fertilization is suspended. Is automatically closed to prevent the fertilizer from leaking.

However, this check valve is often clogged by dust, crystal lumps, etc. mixed in the fertilizer, and often has a drawback that fertilization cannot be performed.

In view of such problems of the conventional ones, the present invention can immediately prevent the fertilizer from leaking by closing the discharge port immediately when the fertilizer application nozzle is pulled up from the soil in the fertilizer application operation. An object of the present invention is to provide a fertilizer application device capable of surely opening the discharge port of a fertilizer application nozzle during fertilization to prevent the fertilizer from running out and ensuring fertilizer application.

Means for Solving Problems The present invention has the following technical means for achieving the object.

That is, the soil fertilizer applicator according to the present invention is equipped with a fertilizer application device that can be moved up and down at the rear of the traveling machine body and moves along the crop line while applying fertilizer into the soil between the crop lines from the fertilizer application nozzle. In the machine, the base end side of the fertilizer application stopper is rotated around the horizontal axis to the frame side of the fertilizer application device in order to position the fertilizer application stopper that opens and closes the discharge port opposite the delivery port of the fertilizer application nozzle. A stop valve body having a lid shape that movably pivotally supports and opens and closes the discharge port of the fertilizer application nozzle on the free end side of the fertilizer application stop and the stop valve body by earth pressure accompanying traveling of the traveling machine body. And a plate-shaped earth pressure receiving portion for floating and sliding on the ground surface, the fertilizer stopper, the facing position and posture to abut the discharge port of the fertilizer nozzle to close the discharge port,
The vertical position can be changed to a non-opposing position that moves upward from the facing position and separates from the discharge port of the fertilizer application nozzle and opens the discharge port, and lowers the fertilizer application device to ground the fertilizer application to the ground surface. When the soil is inside, the fertilizer application floats to the ground surface at the non-opposing position by the earth pressure to open the discharge port, and when the fertilizer application device rises above the ground surface and the fertilizer application nozzle comes out of the soil, It is characterized in that the fertilizer stopper is configured to move downward due to its own weight to a facing position to close the discharge port.

Action During fertilization work in which fertilizer is applied to the soil between crop rows, when the fertilizer application nozzle is inserted into the soil, the stop valve element is brought into contact with it and the discharge port of the fertilizer application nozzle is closed. The pressure receiving part follows the non-opposing position where it floats on the ground surface with respect to the discharge port of the fertilizer application nozzle due to the earth pressure accompanying the traveling of the traveling machine body, and moves upward to stop the valve body apart to open the discharge port. When the soil comes out of the soil, the fertilizer application stopper moves downward due to its own weight and comes to face the discharge port, so that the stop valve body abuts and the discharge port is closed. For this reason, the fertilizer application nozzle is surely opened during fertilization so that the fertilizer is not broken, and the fertilizer does not leak when the fertilizer application is interrupted.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

1 to 3, 1 is a fertilizer applicator for an underground fertilizer applicator, which has a base frame 2 on which sleds 4, 4 are vertically movably mounted via links 3, 3. Moreover, the left and right separators (division boards) 5, 5 are attached so as to surround the sleds 4, 4. Reference numeral 6 denotes a fertilizer application nozzle. The fertilizer application nozzle 6 is fixed to the base frame 2, the fertilizer application nozzle 6 extends rearward in a downwardly inclined shape, and a discharge port at its tip is opened slightly upward. There is. Reference numeral 7 is an adjusting bolt for adjusting the fertilization depth, and this adjusting bolt 7 is a stopper for restricting the rising positions of the sleds 4, 4 and the separators 5, 5. 8
Is a lower limit stopper that regulates the descending positions of the sleds 4, 4 and the separators 5, 5.

When the fertilizer application nozzle 6 is located above the ground surface, the sled bodies 4, 4 are in a front-lowering posture with respect to the ground surface, and the fertilizer application nozzle 6 is inserted into the soil so that the sled body 4, 4 slides on the ground. When you do this, you will be in a forward-moving posture. Reference numeral 9 is a fertilizer stopper, and the fertilizer stopper 9 is pivotally mounted at its base end vertically movable on a pivot shaft provided in the links 3 of the frames 10 of the sleds 4, 4 and the separators 5, 5 in the lateral direction of the machine body. In addition, a lid-like stop valve body 12 made of an elastic body (sponge or the like) is attached to a plate-like arm 11 extending backward and bent downward. A tip end side of the arm 11 is a plate-shaped grounding guide portion 13 and is configured as an earth pressure receiving portion for levitating and sliding the stop valve body 12 on the ground surface by earth pressure accompanying traveling of a tractor 15 (traveling body) described later. A weight 14 is attached to the corresponding portion of the stop valve body 12 to prevent the fertilization stopper 9 from swinging unexpectedly.

Further, the fertilizer application device 1 is attached to the rear of the traveling machine so as to be able to move up and down. Therefore, in a state where the fertilizer application nozzle 6 is elevated above the ground surface and the front portions of the sleds 4, 4 are lowered to the front downward posture. , The fertilizer stopper 9 rotated downward by its own weight comes to a position facing the discharge port of the fertilizer nozzle 6, and the stop valve body
When 12 contacts the discharge port and closes it, the fertilizer application device 1 is descended and grounded, and the fertilizer application nozzle 6 is inserted into the ground, the fertilizer application stopper 9 rotated upward by the earth pressure received by the ground contact guide portion 13 is released. The discharge port is opened by changing its position to a position not facing the discharge port.

Although the fertilizer stopper 9 is rotated downward by its own weight, it may be biased downward by a spring in addition to the rotation of its own weight.

The fertilizer stopper 9 may be fixed to the vertically moving separators 5, 5 via the vertically rotating links 3, 3 and vertically moved together therewith. The earth pressure receiving portion serves as a ground guide portion.
Although 13 is used, the stop valve body 12 or the arm 11 may be formed in a plate shape wider than the fertilizer application nozzle 6.

As shown in FIGS. 4 and 5, a plurality of fertilizer applicators 1 of the soil fertilizer applicator are mounted behind the tractor 15 so as to be able to move up and down. That is, a horizontal tool bar 18 is attached to the tractor 15 via an upper link and a lower link 17 so that the tool bar 18 can be moved up and down, and the fertilizer application apparatus 1 equips the tool bar 18 with its base frame 2 vertically by a connecting arm 19. It is mounted so that it can swing left and right. A fertilizing feed flexible pipe 21 extending from the fertilizing tank 20 mounted on the tractor 15 is connected to the fertilizing nozzle 6 via the pump 22.

In addition, a weed guide 23 is attached to the side surface of the tractor 15 to prevent the wrapping of crops or the like. 24 is a driver's seat of the tractor 15, and 25 is a steering wheel.

To apply fertilizer to the soil between crop rows using the soil fertilizer applicator configured as described above, the fertilizer applicator 1 attached to the rear of the tractor (traveling machine) 15 so as to be vertically movable is used. Positioned between them, the separators 5, 5 guide the space between them to lower them. Then, as shown in FIG. 3, since the front portions of the sled bodies 4,4 which are moving downward by the links 3,3 are closer to the ground surface through the fertilizer application nozzle 6, the sled bodies 4,4 are The fertilizer application nozzle 6 is guided to the ground and grounded before the fertilizer application nozzle 6, and then the fertilizer application nozzle 6 is inserted into the soil. Then, the sleds 4, 4 touch the ground and receive the earth pressure on the ground surface, the front part of the sled moves upward and the links 3, 3
The fertilizer application nozzle 6 is inserted to a certain depth in the soil, and the ground guide portion (earth pressure receiving portion) 13 of the fertilizer stopper 9 is grounded to receive earth pressure and rotate upward. The fertilizer application nozzle 6 moves to a non-opposite position with respect to the discharge port of the fertilizer application nozzle 6, and when the fertilizer application stopper 9 floats and slides above the ground surface, the stop valve body 12 opens apart from the discharge port of the fertilizer application nozzle 6 to open the fertilizer application state. Becomes The insertion depth of the fertilizer application nozzle 6 can be adjusted in depth by adjusting bolt 7. On the other hand, when the fertilizer application device 1 is raised and the fertilizer application nozzle 6 is taken out of the soil, the front parts of the sleds 4, 4 are lowered to the front-lowering posture to approach the fertilizer application nozzle 6, and the fertilizer application stopper is shown. Since 9 rotates downward due to its own weight and comes to a position facing the discharge port of the fertilizer application nozzle 6, the stop valve body 12 abuts the discharge port of the fertilizer application nozzle 6 to close the fertilizer application nozzle 6 and leak the fertilizer. Is prevented.

By the way, as described above, the fertilizer application nozzle 6 is used during fertilization.
When the fertilizer is inserted into the soil, the stop valve body 12 of the fertilizer application stopper 9 is reliably separated from the discharge port of the fertilizer application nozzle 6, so that the fertilizer does not run out during fertilizer application and when the fertilizer application operation is interrupted. In the state where the fertilizer application nozzle 6 is out of the soil, the discharge port is surely closed by the stop valve body 12 of the fertilizer application stopper 9, so that the fertilizer is prevented from leaking out, for example, when turning. Therefore, there is no wasteful dispersal of the fertilizer, and there is no fear of losing the fertilizer of the crop due to it.

Further, when the earthing guide portion 13 is configured as the earth pressure receiving portion as in the embodiment, the stop valve body 12 is unlikely to enter the soil, and the discharge port of the fertilizer application nozzle does not adhere to the soil surface The opening and closing action can be performed accurately. Further, since the fertilizer stopper floats and slides on the ground surface, it is possible to backfill the passage traces of the fertilizer application nozzles by the grounding guide portion 13 without disturbing the passage traces of the fertilizer application nozzles by the fertilizer application stopper. The fertilizer can be surely fertilized by preventing it.

Effect of the Invention As described above, the present invention is to apply fertilizer into the soil between crop rows from the fertilizer application nozzle while moving the fertilizer application device at the rear of the traveling machine so that it can be moved up and down. In the machine, the base end side of the fertilizer application stopper is rotated around the horizontal axis to the frame side of the fertilizer application device in order to position the fertilizer application stopper that opens and closes the discharge port opposite the delivery port of the fertilizer application nozzle. A stop valve body having a lid shape that movably pivotally supports and opens and closes the discharge port of the fertilizer application nozzle on the free end side of the fertilizer application stop and the stop valve body by earth pressure accompanying traveling of the traveling machine body. And a plate-shaped earth pressure receiving portion for sliding the surface of the fertilizer to the ground surface are arranged, and the fertilizer application stopper is brought into contact with the discharge port of the fertilizer application nozzle to close the discharge port, and an upward movement from the opposed position. Do not open the discharge port apart from the discharge port of the fertilizer application nozzle. The posture can be changed up and down to the facing position and posture,
When the fertilizer application device is lowered to contact the ground surface and the fertilizer application nozzle is in the soil, the fertilizer application surface floats to the ground surface in the non-opposing position due to the earth pressure, and the discharge port is opened. When the fertilizer application nozzle rises further and comes out of the soil, the fertilizer application stopper is configured to move downward due to its own weight to block the discharge port. At the time of pulling up from the soil, the posture is always changed in response to the operation, between the facing position where the discharge port of the fertilizer application nozzle is closed and the non-facing position where the discharge port is opened. Therefore, when the fertilizer application nozzle is pulled up from the soil during fertilizer application, the discharge port can be immediately closed to reliably prevent the fertilizer from flowing out, wasteful dispersal of fertilizer can be eliminated, and the crop can be prevented from losing fertilizer. Not only is there no possibility of causing this, but during fertilization, the discharge port of the fertilizer application nozzle can be reliably opened to prevent the fertilizer from running out, and fertilization can be performed reliably. Further, during the fertilizing operation, the fertilizer stopper floats and slides on the ground surface, so that fertilizer application can be ensured without disturbing the passing trace of the fertilizer application nozzle.

[Brief description of drawings]

The drawings show one embodiment of the soil fertilizer applicator according to the present invention. Fig. 1 is an overall plan view of the fertilizer applicator, and Fig. 2 is an overall fertilizer applicator in which the fertilizer application section is located in the soil. Side view, third
FIG. 4 is an overall side view of the fertilizer application apparatus in a state where the fertilizer application section is located above the ground surface, FIG. 4 is an overall side view showing a mode in which the fertilizer application apparatus is attached to a tractor, and FIG. 5 is a rear view of the same. 1 ... Fertilizer, 2 ... Base frame, 3, 3 ... Link, 4, 4 ...
Sled, 5,5 ... separator (division board), 6 ... fertilizer application nozzle,
7 ... Fertilization depth adjusting bolt, 8 ... Lower limit stopper, 9 ... Fertilizer stopper, 11 ... Its arm, 12 ... Stop valve body, 13 ... Grounding guide part, 14 weight, 15 ... Tractor

Claims (1)

[Scope of utility model registration request] 1. A soil fertilizer applicator which attaches a fertilizer application to the rear of a traveling machine body so that it can be moved up and down, and moves fertilizer from the fertilizer application nozzle to the soil between the crop fertilizers. At the rear of the discharge port, the fertilizer stopper for opening and closing the discharge port is positioned so as to be vertically movable, and the base end side of the fertilizer stopper is pivotally supported around the horizontal axis on the frame side of the fertilizer application device. , A lid-shaped stop valve body that opens and closes the discharge port of the fertilizer application nozzle on the free end side of the fertilizer application stopper and the earth pressure caused by traveling of the traveling machine body causes the stop valve body to float and slide on the ground surface A plate-shaped earth pressure receiving portion is provided, and the fertilizer application stopper is in contact with the discharge port of the fertilizer application nozzle to close the discharge port, and the fertilizer application nozzle is moved upward from the opposed position. Up and down in a non-opposite position posture that separates and opens the discharge port When the fertilizer application is configured so that the force can be changed and the fertilizer application is lowered to contact the ground surface and the fertilizer nozzle is in the soil, the fertilizer stopper floats to the ground surface in the non-opposing position by earth pressure and opens the discharge port. However, when the fertilizer application device rises above the ground surface and the fertilizer application nozzle comes out of the soil, the fertilizer application stopper is moved downward by its own weight to the opposite position to close the discharge port. Machine.