KR102080884B1 - Tractor equipped with means for spraying liquid fertilizer using foot boards - Google Patents

Abstract

The present invention relates to a tractor equipped with a liquid fertilizer spreading means using the loading and unloading scaffold, and more specifically, using a liquid fertilizer supply pipe as a frame of the loading and unloading scaffold of the tractor, the liquid fertilizer supply pipe by installing a liquid fertilizer spray pipe The present invention relates to a tractor equipped with a liquid fertilizer spreading means using a loading and unloading platform, which allows the liquid fertilizer to be evenly sprayed on the field ridge while digging the field ridge at the same time.
The present invention uses the liquid fertilizer supply pipe in the installation of liquid fertilizer spreading means in the lower side of the tractor using a steel pipe frame constituting the stepping module of the tractor, the liquid fertilizer injection pipe connected to the steel pipe frame of the loading and unloading scaffold module of the tractor It is characterized in that the liquid fertilizer is evenly sprayed while digging up the field ridges while making the spraying of the liquid fertilizer easier to be placed.

Description

Tractor equipped with means for spraying liquid fertilizer using foot boards}

The present invention relates to a tractor equipped with a liquid fertilizer spreading means using the loading and unloading scaffold, and more specifically, using a liquid fertilizer supply pipe as a frame of the loading and unloading scaffold of the tractor, the liquid fertilizer supply pipe by installing a liquid fertilizer spray pipe The present invention relates to a tractor equipped with a liquid fertilizer spreading means using a scaffolding to allow the liquid fertilizer to be evenly spread on the field ridge while digging up the field ridge at the same time.

In general, a tractor is a type of vehicle that connects various agricultural work machines to supply power and performs work in a driving or stationary state, and is a kind of vehicle having many similarities in structure and function to a car or a truck. The tractor is equipped with an engine, and the output of the engine defines the size of the tractor.

Tractors generally have three functions. In other words, the ability to pull and drive objects such as plows and trailers, to give rotational power to rotary tillers and mowers, and to connect the work machine to a three-point linkage device and to lift the work machine from the ground by hydraulic devices It is. You can use these three functions to perform a variety of tasks.

There are dozens of work tools that connect to the tractor, and you can change the work machine to do the job you want. The reason why tractors are regarded as all-round agricultural machinery can be found in their many uses. In addition to the general-purpose tractors widely used in tillage, sowing, weeding, harvesting, transporting, and the like, the tractors are made for special applications such as orchards, slopes, and forestry.

Looking at the conventional prior art in which various work machines are attached to the tractor as described above, the technology for a tractor plow equipped with an auxiliary crest plate to dig the ground to form a furrow and perform a flattening operation is registered Utility Model No. 20. A tractor equipped with a spreading device such as a fertilizer is disclosed in Japanese Patent Laid-Open No. 2004-141020.

These prior arts are used by connecting a plow or a fertilizer spreading device through a separate connecting device to the rear of the tractor body, especially in the state of connecting the fertilizer spreading device to the rear of the tractor, for example, weeding the ground If you want to use the plow to remove the soil and make the soil porous, after removing the fertilizer spreading device, the plow equipped frame should be installed through the connecting device at the rear of the tractor body. Is pointed out.

Korea Utility Model Registration No. 20-0486019 Japanese Patent Laid-Open No. 2004-141020

The present invention is to provide a liquid fertilizer spreading device to the tractor in the state of providing a separate equipment, such as a plow freely selected in the rear of the tractor to broaden the range of use of the tractor, to provide the convenience of use as a technical problem. .

In addition, the present invention is to provide a liquid fertilizer spray pipe constituting the liquid fertilizer spreading device simply and robustly and at the same time to be removable material to be selected and used according to the need to improve the ease of use as a technical problem Do it.

As a means for achieving the above object, the present invention, while installing the liquid fertilizer spreading means below the tractor using a steel pipe frame constituting the liquid fertilizer supply pipe to the boarding platform of the tractor, the steel pipe frame of the boarding module Liquid fertilizer injection pipe connected to the lower position of the tractor to facilitate the spraying of the liquid fertilizer and at the same time through the digging of the field, characterized in that the liquid fertilizer is evenly distributed deeply into the field.

The configuration of the present invention is driven by the front wheel and the rear wheel by the operation of the engine installed in the vehicle body above the front wheel, and the front bracket of the tractor to get on and off the driver's seat through the loading and unloading scaffold module installed under both sides of the front wheel and the rear wheel. In installing a liquid fertilizer tank, one side of the liquid fertilizer supply pipe combined with a scaffolding frame constituting the stepping frame of the liquid fertilizer tank and the steel board-shaped stepped up and down module having a space therein, the connection hose or connecting pipe, The liquid fertilizer spray pipe is formed by combining one side of the liquid fertilizer spray pipe inside the scaffold frame combined water mixing pipe at the lower side connecting the scaffold frame combined water supply pipe formed on the other side of the combined liquid fertilizer supply pipe and the lower scaffold frame combined liquid fertilizer supply pipe below. The other end of the tractor body below the tractor body, A fertilizer minutes preferably comprising by installing the officers and liquid manure injection pipe, respectively, but the combination of the end portion connected to the bent portion which downwardly bent short pipe with threaded, said connecting short pipe eorang lower grooving operation member on the waveform on.

The configuration of the present invention, the boarding and unloading scaffolding module is formed by installing the 'U' shape on both sides of the lower body between the front wheel and the rear wheel of the tractor, the liquid fertilizer supply pipe and the scaffold frame combined water supply pipe and scaffold frame combined pipe and Liquid fertilizer injection pipe is preferably formed of a steel pipe-type tube having a space therein to communicate with each other,

In the configuration of the present invention, the liquid fertilizer spray pipes are installed to be inclined, but a fine spray hole is formed below each of the liquid fertilizer spray pipes, and the one side of each of the liquid fertilizer spray pipes is formed with a screw portion to form a mixed scaffold frame It is desirable to be screwed into the insertion hole of the screw or to allow the screw to be disassembled.

It is preferable that the structure of the present invention is provided with a fertilizer inserting groove digging tool mounting portion which is lifted and operated by a hydraulic cylinder between the liquid fertilizer spray pipe and the liquid fertilizer spray pipe.

In the configuration of the present invention, the fertilizer errand groove digging tool mounting portion is installed a hydraulic cylinder in a fixed frame fixed to the liquid fertilizer injection pipe and the liquid fertilizer injection pipe upper, between the liquid fertilizer injection pipe and liquid fertilizer injection pipe It is preferable to install the erroneous groove digging actuating rod which is operated by the piston downward on the installed support plate, but the lower end of the erecting groove digging actuating rod is formed sharply.

The configuration of the present invention is preferably provided with a plurality of fish groove trenching rods at both ends of the fish groove trenching rod.

In the configuration of the present invention, it is preferable that a plurality of injection holes be formed in the bent portion which is bent downwardly at the ends of the liquid fertilizer injection tube and the liquid fertilizer injection tube.

In the configuration of the present invention, the liquid fertilizer injection tube 24 and the liquid fertilizer injection tube is a plurality of coupled to the scaffolding frame mixing pipe, a plurality of liquid fertilizer injection tube and the liquid fertilizer injection tube by different intervals It is desirable to install,

The present invention is to install the liquid fertilizer injection pipe constituting the liquid fertilizer spreading means below the tractor body so that the liquid fertilizer is easily sprayed on the field ridge when the tractor is running, as well as the liquid fertilizer is supplied while digging the ridge more smooth liquid It has the effect that fertilizer supply is made.

In addition, the present invention is installed below the tractor car body liquid fertilizer injection pipe constituting the liquid fertilizer spreading means is easy to install without disturbing the liquid fertilizer injection pipe installed agricultural machinery including a separate plow at the rear of the tractor body to use the use of the tractor It has the effect of widening the convenience of use.

In particular, the present invention uses a steel pipe frame constituting the stepping module of the liquid fertilizer supply pipe of the tractor, so that the liquid fertilizer supply pipe maintains a solid state without damage, thereby improving the reliability of the tractor.

In addition, the present invention is combined with the liquid fertilizer supply pipe screw type liquid fertilizer injection pipe constituting the liquid fertilizer spraying means can be selected and used according to the liquid fertilizer injection pipe as necessary, it has the effect of increasing the convenience of use.

1 is a side view of a tractor equipped with liquid fertilizer spreading means using the getting on and off scaffolding according to the first embodiment of the present invention.
Figure 2 is a perspective view of the loading and unloading scaffold module of the tractor with a liquid fertilizer spreading means using the unloading scaffold according to the first embodiment of the present invention.
3 is a schematic pipe line plan view for explaining the liquid fertilizer and water supply state of the tractor equipped with liquid fertilizer spreading means using the getting on and off scaffold according to the first embodiment of the present invention.
Figure 4 is a partial longitudinal cross-sectional view showing the operating state of the tractor equipped with liquid fertilizer spreading means using the getting on and off scaffolding according to the first embodiment of the present invention.
Figure 5 is a perspective view of the main portion of the tractor equipped with liquid fertilizer spreading means using the getting on and off the scaffolding according to a second embodiment of the present invention.
6 is an operational state diagram of FIG. 5, (a) is a state diagram before the inlet cylinder is operated, (b) is a state diagram after the hydraulic cylinder is operated.
7 is a side view of FIG. 5.
Figure 8 is a perspective view of the main portion of the tractor equipped with liquid fertilizer spreading means using the getting on and off scaffolding according to a third embodiment of the present invention.
9 is a plan view of FIG. 8.
10 is a side view of FIG. 8.
11 is a view showing a liquid fertilizer injection tube of a tractor equipped with a liquid fertilizer spreading means using the getting on and off scaffolding according to a fourth embodiment of the present invention, (a) is an exploded perspective view of the main portion, (b) is a combined perspective view to be.

First of all, it should be noted that the above-described tractor is generally made of a garage having a higher height than a passenger vehicle.

Therefore, a tractor having a high garage is provided with a driver's seat for a person to ride, and in this case, a predetermined foothold is required due to the height of the garage.

Most of these scaffolds are installed on both sides of the tractor and are configured to be able to step on and off when getting on and off, specifically, the getting on / off scaffolding module comprises a frame constituting a rim; The scaffold is installed at a predetermined interval between the frame and the frame. The frame is fixed to one side of the tractor body side lower surface.

The present invention is to provide a liquid fertilizer spraying device using the frame constituting the boarding step module as described above as a liquid fertilizer supply pipe, to provide a liquid fertilizer injection pipe to the liquid fertilizer supply pipe to be installed below the tractor body It is.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. Other objects, features, and operational advantages, including the object, operation, and effect of the present invention will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred embodiment in order to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not limited or limited only by the embodiments presented In addition, various changes, additions, and modifications including equivalents and substitutes may be made without departing from the spirit of the present invention.

In addition, the terms or words used in the specification and claims herein are defined on the basis of the principle that the inventor can appropriately define the concept of terms in order to best explain his invention in the best way. However, the present invention should not be construed as being limited to the ordinary or dictionary meaning, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention. As an example, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The expression "includes" not only a direct connection or connection but also a connection or connection through another component in the middle.

1 is a side view of a tractor equipped with liquid fertilizer spreading means using the getting on and off scaffolding according to the first embodiment of the present invention, and FIG. 2 is provided with a liquid fertilizer spreading means using the getting on and off scaffolding according to the first embodiment of the present invention. 3 is a perspective view of a schematic piping line for explaining the liquid fertilizer and water supply state of the tractor equipped with liquid fertilizer spreading means using the unloading scaffold according to the first embodiment of the present invention 4 is a partial cross-sectional view showing an operating state of a tractor equipped with a liquid fertilizer spreading means using the getting on and off footing according to the first embodiment of the present invention.

As shown in FIGS. 1 to 4, the tractor equipped with the liquid fertilizer spreading means using the getting on and off scaffold according to the first embodiment of the present invention is operated by an engine installed in the vehicle body 12 above the front wheel 11. The vehicle is driven by the front wheels 11 and the rear wheels 13 to get on and off the driver's seat 14 via the boarding and unloading scaffold module 20 installed below both vehicle bodies 12 between the front wheels 11 and the rear wheels 13. In installing the liquid fertilizer tank 30 on the front bracket (10-1) of the tractor 10 to be, the liquid fertilizer tank (30) and the boarding platform module 20 in the form of a steel pipe having a space therein ( One side of the scaffold frame combined liquid fertilizer supply pipe (21) (21A) constituting the 20A is connected to the connecting hose or the connecting pipe (40) (40A), but the liquid fertilizer supply pipe (21) (21A) of the scaffold frame Down the scaffolding frame combined water supply pipe 22 (22A) formed in the other side, and the said scaffolding Combine the liquid fertilizer spray pipes 24 and 24A with one side of the scaffold frame combined pipe 23 and 23A at the bottom of the lower frame combined fertilizer supply pipe 21 and 21A to combine the liquid fertilizer spray pipe. The other end of (24) (24A) can be shown and comprised so that the tractor 100 may be located under the vehicle body 12.

In the above, the water supply pipe (22, 22A) combined with the scaffolding frame is connected to the water tank (50) installed in the rear of the tractor 10 by the bracket (50-1) with a connection hose or connecting pipe (41) (41A) To be.

In addition, the liquid fertilizer spreading apparatus described above and described later is the liquid fertilizer tank 30, the water tank 50 and the getting on and off scaffolding module (20) (20A), liquid fertilizer spray pipe (24) (24A) It is a configuration.

In the above, the getting on and off scaffolding module 20, 20A is formed in the 'U' shape below the both sides of the vehicle body 12 between the front wheel 11 and the rear wheel 13 of the tractor 10, the scaffold frame combined liquid Between the fertilizer supply pipe (21) (21A) and the water supply pipe (22) (22A) for the scaffolding frame, a footrest (25) (25A) is provided at a predetermined interval, the liquid fertilizer supply pipe (21) (21A) for the scaffolding frame And the water supply pipe 22 and 22A for the scaffolding frame and the mixing pipe 23 and 23A for the scaffolding frame and the liquid fertilizer injection pipe 24 and 24A are formed in the form of a steel pipe having a space therein so as to communicate with each other. It can be provided by.

As shown in FIG. 3, the liquid fertilizer tank 30 and the liquid fertilizer supply pipe 21 and 21A for the scaffolding frame may be connected to each other by a connection hose or a connection pipe 40 and 40A, respectively. (P2) and solenoid valves V1 and V2 are installed so that the pumps P1 and P2 and solenoid valves V1 and V2 are operated by the control operation of the operation control panel of the driver's seat 14. The water tank (or dilution water tank) 50 and the water supply pipes 22 and 22A for the scaffolding frame are connected to each other by a connecting hose or a connecting pipe 41 and 41A, and to each of them, a pump P3 (P4). ) And solenoid valves V3 and V4 are installed so that the pumps P3 and P4 and solenoid valves V3 and V4 are operated by the control operation of the operation control panel of the driver's seat 14. It can be done.

Therefore, when the liquid fertilizer in the liquid fertilizer tank 30 is used, the solenoid valves V3 and V4 are closed, and the solenoid valves V1 and V2 are opened to open the liquid fertilizer tank 30. Fertilizer is connected to pump (P1) (P2) by connecting pipe (40) (40A)-liquid fertilizer supply pipe (21) (21A) for scaffolding frame-mixing pipe (23) (23A) for scaffolding frame-liquid fertilizer spray pipe (24) (24A) can be sprayed on the surface of the field fish (E) to provide a fertilizer for plant growth to be planted in the field fish (E), on the contrary, using the water in the water tank (50) In the case of spraying water on the field fish (E), the solenoid valve (V1) (V2) can be closed and the solenoid valve (V3) (V4) can be opened and used as the liquid fertilizer of the liquid fertilizer tank (30). In the case of spraying to the field trench E while mixing and diluting the water of the water tank 50, the solenoid valve V3 (V4) and solenoid valve V1 (V2) are To room can be sprayed on scaffolding frames combine the mixing tube (23) (23A) eorang field through the liquid manure injection pipe (24) (24A) was mixed with a liquid fertilizer and water (E) from the surface.

At this time, in order to smoothly mix the liquid fertilizer and water, the opening angles of the solenoid opening and closing valves V1 and V2 are decreased, and the opening angles of the solenoid opening and closing valves V3 and V4 are enlarged from the water tank 50. When the water supplied is mixed into the scaffold frame combined liquid fertilizer supply pipe 21 (21A) through the scaffold frame combined water supply pipe 22 (22A), it can be easily mixed, in particular the liquid fertilizer spray pipe 24 of the present invention 24A are installed inclined, but liquid fertilizer or water or liquid fertilizer mixture is easily formed by forming fine injection holes 24-1 and 24A-1 below each of the liquid fertilizer spray tubes 24 and 24A. Can be sprayed on the field fish (E).

One side of each of the liquid fertilizer injection pipe (24) (24A) is formed with a screw threaded into the fitting holes (23 ') (23A') of the scaffolding frame mixing pipe 23 (23A) as shown in FIG. It can be combined or loosened and dismantled, 23 " and 23 " are fastening nuts.

As described above, the present invention can spray the liquid fertilizer in the field roe (E) in the state that the liquid fertilizer injection pipe (24, 24A) constituting the liquid fertilizer spreading device is located below the tractor body (12) body 12 , Through the connecting means to the rear vehicle body of the tractor 10 can be equipped with a crop work machine except the liquid fertilizer spreading device, etc. can widen the range of use of the tractor 10, and increase the utility value.

In particular, the present invention as described above is a liquid fertilizer spray pipe 24, 24A screwed to the scaffolding frame mixing pipe 23, 23A when running the tractor 10 on the road without performing the liquid fertilizer spraying operation ) By dissolving and dismantling to prevent running by the liquid fertilizer injection pipes 24 and 24A, as well as failure by liquid fertilizer injection pipes 24 and 24A when the tractor 10 breaks down. It is possible to eliminate the interference of the repair, and to select the use of the liquid fertilizer injection pipes 24 and 24A and the fishing groove digging rods to be described later, which are necessary for the field fish (E). It can be carried out easily, in the past was connected to the liquid fertilizer tank and the liquid fertilizer injection pipe, such as connecting hoses in an unordered state, causing interference with the tractor running, but the present invention boarding platform 20 (20A) Scaffolding frame Combined liquid fertilizer supply pipe (21) (21A), scaffold frame combined water supply pipe (22) (22A), liquid fertilizer injection pipe (24) (24A) can be formed and installed can solve the above problems.

Figure 5 is a perspective view of the main portion of the tractor equipped with liquid fertilizer spreading means using the getting on and off the footboard according to a second embodiment of the present invention, Figure 6 is an operating state of Figure 5, (a) before the inlet cylinder is operated (B) is a state diagram after the hydraulic cylinder is operated, Figure 7 is a side view of FIG.

As shown in FIGS. 5 to 7, the tractor equipped with the liquid fertilizer spreading means using the getting on and off scaffold according to the second embodiment of the present invention includes the liquid fertilizer spray tube 24 and the liquid fertilizer spray tube 24A. The fertilizer feeding groove gutter tool mounting unit 60 for lifting up and down by the hydraulic cylinder 61 is configured to be configured, and the fertilizer feeding gutter groove digging tool mounting unit 60 is the liquid fertilizer injection tube 24. ) And the hydraulic cylinder 61 is installed on the fixed frame 62 fixed above the liquid fertilizer spray tube 24A, and the support plate 63 installed between the liquid fertilizer spray tube 24 and the liquid fertilizer spray tube 24A. While installing the erosion groove digging operating rod 64 that is operated by the piston (61 ') in the lower portion, the bottom end of the erosion groove digging operating rod 64 is formed sharply when moving forward as shown in FIG. Scrape the surface of (E) and open the groove for fertilizer By spraying the liquid fertilizer sprayed from the fine spray holes 24-1 and 24A-1 of the liquid fertilizer spray tube 24 and the liquid fertilizer spray tube 24A to the ditch groove, the liquid fertilizer is more smoothly. It can be sprayed deep in the field errand (E), it is possible to spray the liquid fertilizer efficiently, the operation is the piston (61 ') by the operation of the hydraulic cylinder (61) by operating the operator control panel unit not shown as necessary ), While the elevating groove digging operation bar (64) can be performed by the lifting operation.

In addition, a plurality of fish groove digging operation rods 64 'may be installed at both ends of the fish groove digging operation rod 64 to form a groove in accordance with the width of the field fish.

FIG. 8 is a perspective view of an essential part of a tractor equipped with liquid fertilizer spreading means using a getting on and off scaffold according to a third embodiment of the present invention, FIG. 9 is a plan view of FIG. 8, and FIG. 10 is a side view of FIG. 8.

As shown in FIGS. 8 to 10, the tractor equipped with liquid fertilizer spreading means using the getting on and off scaffolding according to the third embodiment of the present invention includes a liquid fertilizer spray tube 24 and a liquid fertilizer spray tube 24A, respectively. A plurality of injection holes 24-2 'and 24A-2' are formed in the bent portions 24-2 and 24A-2, which are bent downwards, to form a groove in the field trench E. The fertilizer can be sprayed into the grooves through the plurality of spray holes 24-2 'and 24A-2' formed in the bent portions 24-2 and 24A-2, and the liquid fertilizer spray tube (24) and the liquid fertilizer injection pipe (24A) is a plurality of coupling to the scaffolding frame mixing pipe (23, 23A), a gap between each of the plurality of liquid fertilizer injection pipe 24 and the liquid fertilizer injection pipe (24A) By differently from each other, as shown in Figure 10 can be formed to form a groove wider than when forming a groove on the surface of the fish (E).

11 is a view showing a liquid fertilizer injection tube of a tractor equipped with a liquid fertilizer spreading means using the getting on and off scaffolding according to a fourth embodiment of the present invention, (a) is an exploded perspective view of the main portion, (b) is a combined perspective view to be.

As shown in FIG. 11, the tractor with liquid fertilizer spraying means using the getting on and off scaffolding according to the fourth embodiment of the present invention includes a liquid fertilizer spray tube 24 and a liquid fertilizer spray tube 24A, respectively. The connecting end pipes 24-2 "and 24A-2" are screwed to the bent parts 24-2 and 24A-2 which are bent downward, and the connecting end pipes 24-2 "and 24A-2 are connected. ") Can be configured by installing a wave shaped groove groove digging operation member 64A at the bottom, and the operation by this configuration is omitted because it is the same as the description of the operation of the third embodiment, the connecting end pipe (24-2") A plurality of injection holes can be formed in the 24A-2 ″.

Particularly, since the wave-shaped trench groove digging operation member 64A can form a bone by digging the depth of the field trench E uniformly, it can be usefully used when spraying crop seeds as well as smooth fertilizer supply. .

10 tractor 12 body
20, 20A: boarding module
21, 21A: liquid fertilizer supply pipe for scaffolding frame
22, 22A: water supply pipe with scaffolding frame
23, 23A: mixing frame with scaffold frame
24, 24A: liquid fertilizer injection pipe 24-1, 24A-1: injection hole
30: liquid fertilizer tank 50: water tank
60: Erlenmeyer groove digging tool insert for fertilizer
61: hydraulic cylinder 64, 64 ': groove groove digging operation rod
64A: Corrugated ditch groove actuating member

Claims (8)

The boarding platform for traveling on and off by the front wheels 11 and the rear wheels 13 by the engine operation installed on the vehicle body 12 above the front wheels 11 and provided below the two vehicle bodies 12 between the front wheels 11 and the rear wheels 13. In installing the liquid fertilizer tank 30 in the front bracket 10-1 of the tractor 10 to get on and off the driver's seat 14 through the module 20,
One side upper side of the liquid fertilizer supply pipe (21) (21A) of the scaffolding frame combined with the liquid fertilizer tank (30) and the scaffolding frame (20, 20A) of the steel pipe-type boarding and discharging having a space therein. 40) (40A),
On the lower side of the scaffold frame combined water supply pipes 22 and 22A formed on the other side of the scaffold frame combined liquid fertilizer supply pipes 21 and 21A and the bottom of the scaffold frame combined liquid fertilizer supply pipes 21 and 21A. The other end of the liquid fertilizer injection pipe 24, 24A is coupled to one side of the liquid fertilizer injection pipe 24, 24A to the inside of the scaffold frame mixing pipe 23, 23A inside the tractor 10 body 12 To be located below,
The getting on and off scaffold module 20 (20A) is installed in a 'U' shape below both vehicle bodies 12 between the front wheel 11 and the rear wheel 13 of the tractor 10,
The scaffold frame combined liquid fertilizer supply pipe (21) (21A) and scaffold frame combined water supply pipe (22) (22A), scaffold frame combined mixing pipe (23) (23A) and liquid fertilizer spray pipe (24) (24A) It is formed and provided as a steel pipe-type tube having a space inside to communicate with,
Each of the liquid fertilizer injection pipes 24 and 24A is installed to be inclined, and fine injection holes 24-1 and 24A-1 are formed below each of the liquid fertilizer injection pipes 24 and 24A.
One side of each of the liquid fertilizer injection pipe (24) (24A) is formed with a screw portion screwed to the fitting holes 23 '(23A') of the scaffolding frame mixing pipe 23 (23A), or the screw portion To disassemble and disassemble,
Install a fertilizer feeding groove digging tool mounting portion 60 for lifting up and down by the hydraulic cylinder 61 between the liquid fertilizer injection pipe (24, 24A),
The fertilizer injection groove digging tool mounting portion 60, the hydraulic cylinder 61 is installed on the fixed frame 62 fixed to the liquid fertilizer injection pipe 24, 24A, the liquid fertilizer injection pipe ( 24) (24A) installed in the support plate 63 installed between the groove groove digging operating rod 64 to be operated by the piston (61 ') downward, but the lower end of the groove groove digging operating rod 64 Formed and configured, the tractor equipped with liquid fertilizer spreading means using the step of getting on and off scaffolding, characterized in that by installing a plurality of grooves digging operation bar (64 ') at both ends of the groove groove digging operation bar (64). delete The method of claim 1,
Coupling the end pipes 24-2 "and 24A-2" to bent parts 24-2 and 24A-2 which are bent downwardly at the ends of each of the liquid fertilizer injection pipes 24 and 24A. But
A tractor equipped with liquid fertilizer spreading means using a getting on and off scaffold, characterized in that by installing the corrugated groove digging operation member (64A) below the connecting end pipe (24-2 ") (24A-2"). delete delete delete The method of claim 1,
A plurality of injection holes 24-2 'and 24A-2' are formed in the bent portions 24-2 and 24A-2, which are bent downwardly at the ends of each of the liquid fertilizer spray tubes 24 and 24A. Tractor equipped with liquid fertilizer spreading means using the getting on and off the scaffold characterized in that the configuration. The method of claim 7, wherein
The liquid fertilizer spray pipe (24, 24A) is a plurality of bent frame coupled to the mixing frame 23, 23A combined with the scaffolding frame, the bent portion that is bent downward end of each of the plurality of liquid fertilizer spray pipe (24, 24A) (24-2) Tractor with a liquid fertilizer spreading means using the getting on and off scaffold, characterized in that the installation is configured by different intervals between (24-2) (24A-2).

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