KR20100064252A - Cart of chemical liquide injection - Google Patents

Abstract

PURPOSE: A cart capable of controlling the spray direction of a medical fluid is provided, which can not only enhance the efficiency of the medical fluid sprinkling operation but also control the balance of the nozzle rod with a little power. CONSTITUTION: A cart capable of controlling the spray direction of a medical fluid includes: a body frame part(100) in which the medical fluid nozzle rod is installed in one side, and wheels are installed in the lower part of the body frame; an operation part(400) rotating to the left and right in the other side of the body frame part separately from the body frame part; and a rotating transmission member(600) rotating by interlocking the medical fluid rod with the right and left rotation of the operation part, while one end is connected to the operation part and the other end part is connected to the medical fluid nozzle rod.

Description

Cart of chemical liquide injection

According to the present invention, even when the cart is inclined to one side by the ground state during the spraying of the chemical to the crop while moving by using the cart, the angle of the chemical nozzle unit can be easily returned to the original position simply by the simple operation of the chemical solution. In addition to preventing, it also relates to a wagon capable of controlling the chemical injection direction that can easily control the chemical solution nozzle balance with less force than conventional.

In general, farmers carry out pesticide spraying operations by using a wagon equipped with a chemical spray device when spraying pesticides on field crops or fruit trees.

Such a chemical spray wagon is composed of a frame made of a handle and a carrier integrally, and a chemical container and a pumping means are installed on the carrier and the nozzles are provided with spray nozzles on both sides of the carrier to move the chemicals from side to side. To be sprayed toward.

However, when the conventional chemical spray cart passes through a narrow furrow, the entire cart moves in a slanted form to one side, so the front chemical sprayer is also inclined together, one side is sprayed downward and the other is sprayed upward. There is a problem that the chemical spraying of the crop is not done properly.

In order to solve this problem, Korean Patent No. 0533111, `` Balance maintaining device for carts '' and No. 0691332, `` Balance maintaining device, '' invented by the present applicant are installed so that the whole wagon frame including the carrier can be rotated left and right on a wheel. Even if one side of the wheel is lifted and the cart is inclined to one side, the worker rotates the entire wagon frame so that the entire wagon can be returned to the horizontal state except the wheel.

Therefore, when chemical spray nozzles are installed on both sides of the float frame and used as a spray for chemical spray, the left and right tilt of each chemical nozzle can be controlled through individual rotation of the float frame even if the cart is tilted and the angle of the chemical nozzle is tilted to one side. There is an advantage that can spray the chemical liquid in the desired direction irrespective of the ground state.

However, such a prior art has to be rotated the cart frame, including the carrier in common, so that when rotating the cart frame in an inclined state, the operator must support the weight of the load, such as a heavy liquid container and a pump installed on the carrier.

Therefore, in order to maintain the balance not only takes a lot of force, but also difficult to return to the original position within a short time in the inclined state there is a problem that is difficult to work smoothly.

In addition to the driving wheels connected to the engine means of the existing carts for turning direction uses a relatively easy to change the rotary caster.

For example, when using four-wheeled wheels, the front left and right front wheels are used as driving wheels, and the left and right rear wheels use rotary casters.

Rotating casters located on both left and right sides (hereinafter referred to as 'casters') can be freely changed in each direction separately. If one caster moves over obstacles such as a boulder while the cart moves, The direction is changed so that the direction of travel of the other casters, that is, the direction of travel of the cart.

In this state, if the caster touches the ground, the cart may squeeze momentarily due to the direction mismatch between the casters. In addition, if the above phenomenon occurs when passing over a ground installation such as a blackout vinyl on a furrow, the direction is changed along the direction of the cart when the caster touches the ground, causing the vinyl to tear in the process. Is generated.

In addition, the conventional chemical spray cart is fixed to the carrier frame directly to the drug reservoir and pump is cumbersome to separate from the cart from time to time, the situation is purely used for chemical spray only.

Therefore, there is a problem in that farms are used for spraying chemical spray carts and baggage carts separately, so that the cost of purchasing each cart is high and the storage space is also occupied a lot.

The present invention is to solve the problems of the prior art as described above,

When the cart is inclined to one side in the course of operation, it is possible to control the balance of the chemical liquid nozzle with less force than in the prior art, it is an object of the present invention to provide a float that can control the chemical liquid spray direction that can be easily applied chemical spraying operation.

It is also an object of the present invention to provide a wagon capable of controlling the direction of chemical spraying, which is easier to move compared to the prior art and thus prevents damage to installations on the ground by allowing the left and right wheels to always be changed together in the same direction.

In addition, by suggesting a structure that can easily attach and detach the liquid container and pump from the wagon to provide a wagon capable of controlling the direction of spraying chemicals that can be used not only for spraying chemicals but also for transporting luggage.

The present invention for achieving the above object,

Drive wheel is installed on the lower side and one side of the main frame and the chemical liquid supply unit and the chemical nozzle unit is installed, and the basic configuration consisting of a control unit provided on the other side of the main frame,

The control unit is installed to be able to rotate left and right separately from the main frame,

The chemical liquid nozzle unit may be rotated to the left and right together according to the left and right rotation of the control unit using the rotation transfer means connected to the control unit and the chemical nozzle unit.

In addition, the two wheels located on the left and right sides of the wheel is made of a rotary caster free to change direction through the direction of the change shaft, the rotation axis of each wheel is installed with a rotating body rotated with the direction change shaft, each time It is characterized in that the whole is interconnected through the connection synchronization member so that the rotational force of each rotating body is transmitted to each other.

And a separate auxiliary frame is installed on the main frame to be detachable, the chemical liquid nozzle unit and the chemical supply and the angle adjusting means is installed on the auxiliary frame, characterized in that the separation and installation in the main frame with the auxiliary frame.

The present invention having the above characteristics,

If the cart is inclined to one side according to the ground condition while moving while spraying the chemical liquid, simply rotating the control unit also rotates the chemical nozzle unit so that the left and right balance is controlled.

Compared with the prior art, which rotates the whole wagon including the chemical supply unit, it is possible to maintain the balance of the chemical liquid nozzle with less force and to control the chemical liquid nozzle tilt as desired regardless of whether the main frame is tilted. There is an advantage to increase the efficiency.

In addition, since the casters are always switched in the same direction by the rotating body and the connection synchronization member wires installed in each caster, it is easy to operate regardless of the ground state and there is an advantage of preventing damage to the installations on the ground.

In addition, as the chemical supply unit is not directly installed in the main frame, but is installed in the main frame through a separate auxiliary frame, the entire chemical supply unit can be easily separated or installed at the same time by attaching and detaching the auxiliary frame. Has the advantage of being used as a carrier.

Hereinafter, with reference to the configuration illustrated in the drawings will be described an embodiment of the overall configuration and its operation of the present invention.

The wagon capable of controlling the liquid injection direction of the present invention basically consists of a main body frame part 100, a control part 400, and a rotation transmission means 600.

In addition to the basic configuration, the chemical liquid supply unit 300 and the chemical liquid nozzle unit 719 are further provided to enable chemical liquid injection.

Next, a first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

First, the main body frame part 100 of the present invention is divided into a main frame 101 and an auxiliary frame 200.

The main frame 101 is formed in a generally rectangular shape by bending or connecting a rod-shaped frame as a basic skeleton of a wheelbarrow, and installing a crossbar at each middle to install the auxiliary frame 200 having the chemical supply unit 300 placed thereon. It has a structure that forms a support unit 102 that can put a variety of loads on the lift or the auxiliary frame 200 is removed. Of course, the bearing unit 102 may be formed using a wide plate rather than a crosspiece.

And behind the main frame 101, a mounting table 110 composed of a horizontal frame connecting the top of a pair of vertical frames and both vertical frames is erected. On the horizontal frame of the mounting table 110 is provided with a connection bearing 120 for supporting the rotating shaft 500 to be described later.

In addition, both sides of the connection bearing 120 of the mounting table 110 is provided with a control pin 130 for controlling the rotation of the control unit 400 to be described later to be moved back and forth.

The control pin 130 can be moved back and forth by the user directly holding the hand or connected through a separate operation lever (not shown) and a wire (not shown) provided in the control unit 400 can be easily operated by the user during operation. You can also

The auxiliary frame 200 is installed to be detachable on the main frame 101, the auxiliary frame 200 is made of a size and shape similar to the main frame 101 and the chemical liquid nozzle unit 710 is installed at the front end portion. A cradle 210 is provided, and a fixing flange 220 through which a transfer rod 610 to be described later is installed is provided below the center of the cradle 210.

The fixing flange 220 is a hollow pipe of a predetermined length, and a flange is installed at one end thereof, so that the fixing flange 220 is attached to the holder 210 by welding or the like.

The auxiliary frame 200 may be coupled to or separated from the main frame 101 by using a separate known clamp (not shown) in a state seated on the edge of the carrier 102 of the main frame 101. .

The chemical liquid container 310 and the pump 320 constituting the chemical liquid supply part 300 are installed on the main frame 101 in a state in which the chemical liquid supply unit 300 is placed in the auxiliary frame 200. 101 can be easily removed and installed.

The shape and size of the main frame 101 and the auxiliary frame 200 is not limited to the drawings and may be variously modified and manufactured according to the use environment or the capacity and shape of the chemical container.

One side of the main frame 101 is provided with a control unit 400 for the operation of the wheelbarrow, the control unit 400 is erected vertically by a predetermined length at both rear left and right ends of the main frame 101 and bent horizontally again. It consists of a pair of handles 450 formed on the ends of the pipes and the operation panel 420 is installed to be integral with the pipe between the vertical pipes.

The operation panel 420 is provided with an operation switch for operating the pump 320 and the wheel drive engine 811 and the like.

And the insertion hole 410 is formed in the front of the pipe on which the handle 450 is formed so that the control pin 130 provided in the main frame 101 can be inserted.

In the present invention, unlike the prior art in which the main body frame portion and the control unit are integrally installed, only the control unit 400 can be left and right rotated separately through the rotation shaft 500.

The pivot shaft 500 is positioned so that the other end is directed toward the main frame 101 in a state where one end is fixed on the fixing plate 430 installed on the operation panel 420 of the control unit 400 on the mounting table 110. It is installed through the connection bearing 120.

Therefore, when the rotating shaft 500 rotates from side to side in the connection bearing 120, the control unit 400 coupled to the rotating shaft 500 also rotates together.

Of course, it is possible to install in the form that the rotating shaft 500 directly penetrates the mounting table 110 without providing the connection bearing 120.

For reference, although the connection bearing 120 is illustrated as being provided with one, the control unit 400 is supported only by the coupling between the rotation shaft 500 and the connection bearing 120, so that the length of the rotation shaft 500 To increase and to connect a plurality of connection bearings 120 in series to install, it can support the control unit 400 more stably.

Rotating transmission means 600 is installed to transfer the rotational force of the control unit 400 to the chemical liquid nozzle unit 710 through the rotation shaft (500).

The rotation transmission means 600 is composed of a transmission rod 610 and a rotation frame 620 again, the transmission rod 610 is a rod shape having a certain length as the name, one end of the connecting shaft of the rotating shaft 500 It is connected to the center of the end portion penetrating through the 120 and the other end penetrates through the fixing flange 220 in front of the auxiliary frame 200 and then is coupled to the rotation frame 620 by welding or the like.

At this time, the inner diameter of the fixed flange 220 is such that the transfer rod 610 can be freely rotated in the fixed flange 220.

As shown in the enlarged view of FIG. 2, a screw hole 502 is formed at one end of the rotating shaft 500, and a screw 612 is formed at the end of the transmitting rod 610 so that the transmitting rod 610 and the rotating shaft ( As it is possible to separate the fastening 500, it is possible to easily remove the transfer rod 610 that is not necessary when the cart is used for transporting the baggage rather than the drug spraying.

The operation of screwing or separating the transfer rod 610 into one end of the pivot shaft 500 is performed by rotating the pivot frame 620 in a state where the chemical liquid nozzle holder 710 is separated using the clamp 730. .

The connection between the rotation shaft 500 and the transmission rod 610 is not limited to screwing, but using a coupling pin or any other structure as long as the rotation shaft 500 and the transmission rod 610 are rotated together and detachable. Variation can be applied.

For reference, the installation position of the rotation shaft 500 and the transfer rod 610 is set so as not to be in contact with each other in consideration of the height of the chemical liquid container 310 located on the main frame 101.

The rotation frame 620 constituting the rotation transmission means 600 together with the transmission rod 610 is for the final delivery of the installation and rotational force of the chemical nozzle unit 710, but also made of a rod, It is disposed so as to vertically intersect 610 and the intermediate point is integrally connected to the end portion passing through the fixing flange 220 of the transfer rod 610.

And the left and right ends of the rotating frame 620 is installed in the form of the chemical liquid nozzle stand 710 vertically using the clamp 720, each chemical liquid nozzle stand 710 in the chemical liquid container 310 and the connection pipe ( A plurality of injection nozzles 720 connected to each other are arranged along the longitudinal direction.

In summary, when the control unit 400 is rotated left and right about the rotating shaft separately from the main frame unit 100, the rotating shaft 500 and the transmission rod 610 rotate accordingly, and finally, the rotating frame. 620, as both ends are rotated up and down around the connection portion with the transfer rod 610, each of the chemical liquid nozzle stage 710 is moved straight up and down eventually.

On the other hand, the driving means 800 for moving the wheelbarrow is installed at the bottom of the main frame 101.

The driving means 800 is composed of a driving engine 811, a driving wheel 812, and a steering wheel 820 for changing the traveling direction of the cart.

The driving engine 811 may be implemented in the form of an electric motor or an internal combustion engine, and the driving wheel 812 is installed at the front left and right of the main frame 101 to serve as a front wheel.

In addition, the steering wheel 820 is divided into a first steering wheel 822 and a second steering wheel 824 which are respectively installed on the left and right rear sides of the main frame 101 to serve as rear wheels. The first and second steering wheels 822 ) 824 uses a rotary caster that is easy to change direction.

That is, the first and second steering wheels 822 and 824 have a connecting shaft 825 and 826 that are erected on the wheel cover 801 as shown in FIGS. 2 and 5. The coupling shafts 825 and 826 and the wheel cover 801 are coupled to each other so as to be rotatable in the shaft cover 802, and one side of the shaft cover 802 is fixed to the main frame 101. It has a general rotatable caster structure that is free to rotate.

In the present invention, such first and second steering wheels (822, 824) are always rotated together in the same direction and angle through a separate direction matching means 900,

The direction matching means (900) is formed in the form of a disc that is rotated together with the connecting shafts (825, 826) of the steering wheels (822, 824) through the center of the connection shafts (825, 826) The first and second rotating bodies 912 and 914 and the respective rotating bodies 912 and 914 are connected to each other so that the rotational force between the rotating bodies is transmitted to each other.

The first and second rotating bodies 912 and 914 may be implemented in the form of a sprocket or a belt pulley as shown in the drawing, and the synchronization member 920 may be implemented in a chain or a belt according to the rotating body shape. have.

Hereinafter will be described the operation of the present invention made of the above configuration.

First, as shown in FIG. 6, when driving on a flat plane without fear of tilting the wheel, the control pin 130 of the main frame 101 is inserted into the insertion hole 110 of the control unit 400. Operate in a state where unnecessary turnover is blocked.

When the cart passes through the flat, the chemical nozzle unit 710 is sprayed toward the left and right in a state in which the left and right in the vertical direction, and then the control pin 130 when passing through an uneven place such as furrows. Separate from the control unit 400 to allow the control unit 400 to be rotated freely.

 While driving in such a state, for example, when the wheel is lifted to the left and right of the wheel as shown in FIG. 7, the entire wheelbarrow is tilted to the left, and the left and right chemical nozzle units 710 are also tilted together at the right chemical nozzle unit 710. The direction of injection of the chemical liquid is upward and the direction of injection from the left chemical nozzle stage is downward.

When the operator rotates the handle to the right as shown in FIG. 8 while the spraying direction of the chemical liquid is inclined to one side, the main frame 101 maintains the inclined state and only the control unit 400 and the pivot shaft 500 are connected. It is rotated about the bearing 120.

When the rotation shaft 500 rotates together with the control unit 400, the transmission rod 610 is also rotated by the same angle and the rotation frame 620 also rotates around the connection part with the transmission rod 610. It is level with the ground.

As the rotating frame 620 rotates, the chemical liquid nozzle stand installed on the left side of the rotating frame 620 goes upward and the chemical liquid nozzle stand installed on the right side of the rotating frame 620 descends downward, so that each chemical liquid nozzle stand 710 is also in its original state. That is, it is returned to the upright position from the ground.

 As described above, the present invention provides each chemical liquid nozzle unit through a separate rotation of the control unit 400 only in a state in which the chemical liquid container 310 and the pump 320 mounted on the main frame 101 and the main frame 101 are inclined to one side. The balance of 710 is adjusted.

In addition, the present invention can adjust the angle of the chemical liquid nozzle unit 710 by rotating only the control unit 400 even if the cart is tilted to one side, the whole body frame portion containing the chemical liquid container and the pump to maintain balance Compared with the prior art which needs to rotate, there is an advantage in that the spraying direction of the chemical liquid can be easily controlled even with a small force.

As described above, when the chemical liquid nozzle unit 710 including the control unit 400 is inclined together momentarily when the main frame 101 is inclined to one side, the operator forcibly adjusts the handle of the chemical liquid nozzle unit 710. It is a balancing process.

However, when the wagon of the present invention moves along a gentle curved surface, even if the operator does not adjust the handle forcibly, the chemical liquid nozzle unit 710 can be automatically balanced using its own load of the control unit 400, and The reason is as follows.

In the first embodiment, since the center of rotation of the control unit 400, that is, the rotation shaft 500 is located above the control unit 400, the self load of the control unit 400 is lowered based on the rotation shaft 500. Are concentrated. As a result, the center of gravity of the control unit 400 is also positioned below the rotational shaft 500 that is the center of rotation of the control unit 400.

Therefore, even if the main frame 101 is inclined, the center of gravity of the control unit, which is usually designed to be symmetrical, has a property of returning to the vertical line connecting the rotational axis and the ground, so that the control unit 400 is not always inclined at all times. It will try to stay perpendicular to.

Accordingly, the angle change of the chemical nozzle unit 710 is hardly generated regardless of whether the main frame 101 is inclined, and the user does not need to use little force for the rotation of the control unit 400.

And as shown in FIG. 9, the first rotating body 912 also rotates as the turning shaft 825 of the first steering wheel 822 rotates when the driving direction is changed to the right side of the wagon. The rotational force of the first rotating body 912 is transmitted to the second rotating body 914 through the synchronization member 920, so that the second rotating body 914 and the second steering wheel 824 are also rotated in the same direction. .

In addition, one of the steering wheels (822, 824) to pass through the flat, the direction of progress may be changed in the course of riding over obstacles such as stones. At this time, the steering wheel is in close contact with the ground, so the load of the cart acts more than the steering wheel lifted by the obstacle, so the angle does not change and the property is maintained. And since the steering wheel lifted by the obstacle is connected to the other steering wheel direction switching shaft and the direction matching means 900 in close contact with the ground, the angle is not twisted and is in line with the traveling direction of the steering wheel in close contact with the ground. It is in contact with the ground in a state.

Therefore, the phenomenon that the installation of the blackout vinyl, etc. laid on the ground is prevented in the process of twisting toward the progress direction again to match the direction at the moment when the touch the ground in the wrong direction.

And if you want to use the cart for transporting the cargo after the drug spraying is completed, the clamp (not shown) connecting the main frame 101 and the auxiliary frame 200 after separating the transfer rod 610 from the rotating shaft 500 Releasing and lifting the auxiliary frame 200, the chemical liquid container 310 and the pump 320, the delivery rod 610, the rotating frame 620, the chemical liquid nozzle unit 710, which was installed in the auxiliary frame 200, is also Lifted together

Therefore, since only the main frame 101 remains pure, the load can be carried on the carrier 102 of the main frame 101.

In the present invention described above, the installation position of the pivot shaft 500 and the connection structure with the transmission rod 610 may be variously modified.

4 is a second embodiment of the present invention implemented in a form in which the transmission rod 610 is directly connected to the control unit without the rotation shaft.

That is, the transmission rod 610 is implemented to be fixedly coupled to the fixed plate 430 installed on the operation panel 420 of the control unit 400 through the direct connection bearing 120 without a separate rotation shaft. .

At this time, by forming a screw hole in the fixing plate 430 can be screwed so that the transfer rod 610 can be separated, and do not need to change the cart to the use of the carrier, so that the separation of the transfer rod 610 is not considered, The fixing plate 430 and the transfer rod 610 may be completely fixed by welding or the like.

The operation of the other second embodiment is the same as that of the first embodiment.

In the third embodiment of the present invention, as shown in FIGS. 10 to 13, the pivot shaft 500 is provided at the bottom of the control unit 400.

When the rotating shaft 500 is positioned at the lower end of the control unit 400, the rotating shaft 500 has one end fixed to the lower end of the operation panel 420 of the control unit 400, and the other end is similar to the rotating shaft 500. It is installed in such a way that it is supported through the connection bearing 120 moved downward.

At this time, since the height difference between the rotation shaft 500 and the transmission rod 610 is generated as shown in FIG. 13, the connecting rod 630 for connection between the rotation shaft 500 and the transmission rod 610 is I need more.

The connecting rod 630 is in the form of a simple rod having a length almost equal to the height difference between the rotation shaft 500 and the transmission rod 610, as shown in [12] and [13] perpendicular to the upper and lower ends The upper bent portion 632 and the lower bent portion 634 are each formed in a bent form.

In addition, a first joint member 640 for connecting to the connecting rod 630 is coupled to one side of the pivot shaft 500 through a separate fixing ring 10 to protrude toward one of left and right from the pivot shaft. A fastening hole 642 is formed at one end of the joint member 640.

In addition, a second joint member 650 having the same structure as that of the first joint member 640 is installed in the transfer rod 610 in the same direction as the first joint member 640.

In this state, the lower bent portion 634 of the connecting rod 630 is coupled to the fastening hole 642 of the first joint member 640 and the upper bent portion 634 is the fastening hole of the second joint member 650 ( 652).

At this time, the diameter of each of the fastening holes 642 and 652 is formed such that the upper and lower bent portions 632 and 634 of the connecting rod 630 can be freely rotated in the fastening holes.

Through this coupling, the connecting rod 630 has a structure in which both ends are connected to the rotation shaft 500 and the transmission rod 610 in a vertical position.

When the present invention is implemented as described above, the operator rotates the control unit 400 to the right in the state where the whole cart is inclined to the left as shown in FIG. 14 and returns to the original state as shown in FIG. The first joint member 640 rotated by the same angle and attached to the right side of the rotation shaft 510 is rotated downward.

 As the first joint member 640 is rotated downward, the connecting rod 630 is pulled downward, and at the same time, the connecting rod 630 pulls one end of the second joint member 650 downward, and eventually, The transfer rod 610 is rotated to the right by the same angle as the rotation shaft 500.

Therefore, the rotation frame 620 also rotates at the same angle around the connection point with the transfer rod 610, and each chemical liquid nozzle stand 710 located at both ends is also returned to the initial state as it becomes horizontal with the ground.

Thus, when installing the rotating shaft 500 under the control unit 400, unlike when installed on the top of the control unit, the load of the entire control unit is concentrated on the upper rotation shaft and the center of gravity is formed on the upper rotation shaft.

Therefore, this state is unstable, so that the center of gravity of the center of gravity appears to move downward, so that if the operator does not hold the handle, the entire control part is rotated to either side left or right to rotate.

As described above, in the third embodiment, the operator must firmly hold the handle 450 to maintain the left and right balance so that the steering unit is not inclined to one side. In this state, when the worker firmly holds the handle, the wagon passes the curved surface. Since only the frame 101 can be tilted and the angle of the control unit 400 and the chemical nozzle unit 710 can be maintained as it is, there is no need to rotate the control unit in particular for adjusting the angle.

For reference, an embodiment using the connecting rod 630 uses the principle that the connecting rod converts the rotational movement of the rotation shaft 500 into the vertical movement of the connecting rod and the transfer rod is converted into the rotational movement again. The gear gears may be replaced with rack gears formed along the direction, and the pinion gears may be installed on the outer circumferential surfaces of the rotation shaft 500 and the transmission rod 610.

In addition, although not shown separately in the drawings, it is possible to apply a deformation using a cam or a hydraulic cylinder.

In addition, as shown in the enlarged view of FIG. 13, the connecting rod 630 is divided up and down and the splitting points are screwed up and down, so that when the auxiliary frame 200 is separated, the lower portion of the connecting rod 630 is divided by the pivot shaft 500. It remains connected to, and only the upper part is separated with the auxiliary frame.

As described above, various features of the present invention may be variously modified and combined by those skilled in the art, but such modifications and combinations allow the control unit connected to the main frame to be rotated separately and simultaneously control the angle of the chemical liquid nozzle unit through the rotation of the control unit. By making it possible, when the wagon is inclined and related to the configuration and the purpose of easily adjusting the angle of the chemical liquid nozzle with less force than conventional, it should be determined to fall within the protection scope of the present invention.

1 is an exploded perspective view showing the entire structure of the present invention

Figure 2 is a perspective view showing the overall coupling state of the present invention

3 is a side schematic view of FIG.

4 is a view showing a transmission rod is directly connected to the control unit without a rotating shaft;

5 is a partially enlarged perspective view illustrating a state in which steering wheels are connected to each other through direction matching means;

6 is a front view showing a state where the cart passes through the flat;

7 is a front view showing a state where the whole wagon is inclined to one side;

8 is a front view illustrating a process of adjusting the angle of the chemical liquid nozzle unit through the rotation transfer means in accordance with the rotation of the control unit;

 9 is a schematic plan view showing a state in which the steering of the steering wheel is matched through the direction matching means;

10 to 16 is a view showing a modified embodiment of the present invention

10 is an exploded view showing the rotation shaft is installed on the lower side of the control unit and the rotation shaft and the transfer rod is connected through a separate connecting rod

11 is a full perspective view

12 is a view showing in detail the coupling structure between the rotating shaft and the main frame, the transfer rod, connecting rod

13 is a full side schematic view

14 to 15 are views showing a process of returning the angle of the chemical liquid nozzle unit through the rotation of the control unit in the state that the cart is inclined

Claims (8)

The main frame portion and the wheel is installed on the lower side and the chemical nozzle unit is installed on one side A control part installed on the other side of the main body frame part so as to be able to rotate left and right separately from the main body frame part; One end is connected to the control unit and the other end is connected to the chemical liquid nozzle unit and the chemical liquid nozzle unit comprises a rotational transmission means for rotating in conjunction with the left and right rotation of the steering wheel, characterized in that the chemical liquid spray direction control. The method of claim 1, The main frame portion and the main frame made of a rod made of a rod-shaped frame and the mounting frame is installed vertically standing another rod-shaped frame on one side of the rod-shaped frame of the carrier portion; Wheelbarrow capable of chemical injection direction control, characterized in that formed in the frame having a size and shape similar to the main frame and one side consisting of an auxiliary frame provided with a cradle for installing the chemical nozzle unit. 3. The method according to claim 1 or 2, The rotational transmission means, one end is connected to the control unit and the transmission rod is disposed along the front and rear direction of the cart, Wheelbarrow capable of controlling the chemical injection direction is installed on the other end of the transfer rod, consisting of a rotating frame in which the chemical liquid nozzle unit is installed on any one or more sides. The method of claim 3, wherein The control unit is connected to the main frame by a separate rotating shaft and rotated with the rotating shaft around the rotating shaft, the transmission rod is connected to the control unit in the form that one end is coupled to the rotating shaft end is rotated with the rotating shaft Wheelbarrow that can control the chemical liquid injection direction, characterized in that. The method of claim 3, wherein The control unit is connected to the main frame by a separate rotating shaft and rotated with the rotating shaft about the rotating shaft, The connection between the transfer rod and the rotating shaft, one end is connected to the rotating shaft, the one end of the transmission rod is connected to the connecting rod that moves up and down linearly according to the rotation of the rotating shaft, the chemical liquid spray direction controllable floats. The method of claim 5, A separate first joint member having a fastening hole at one end thereof is protruded on one side of the rotation shaft, One side of the transfer rod is provided with a second joint member protruding so as to be horizontal with the first joint member, the upper and lower ends of the connecting rod is coupled to the first and second joint members rotatable, characterized in that the cart . The method according to claim 1 or 2, The pair of wheels located on the left and right sides of the wheel is made of a steering wheel that is free to change direction itself through a direction change shaft coupled to the main frame, The steering shaft of each steering wheel is connected to each other through a separate direction matching means, the steering wheel is capable of controlling the chemical liquid spray direction, characterized in that the steering wheel is always changed in the same direction. The method of claim 7, wherein The direction matching means comprises a rotating body which is installed to pass through the direction changing shaft of each steering wheel and rotates together with the direction changing shaft, and a synchronization member for connecting the rotation between the rotating bodies to transmit the rotational force of the rotating body mutually. Wheelbarrow which can control chemical liquid spraying direction.

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