JP2013094110A - Blower type chemical diffusing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the housing property or portability of a blower type chemical diffusing apparatus.SOLUTION: The blower type chemical diffusing apparatus 1 is provided by including a backpack frame 10, a blower 3 arranged at the rear direction of the backpack frame 10, a blowing tube 4 connected with the blower 3 at the lower directional position of the backpack frame 10 and extending in front direction, and a liquid-sending tube 7 sending the chemical stored in a tank 6 along the blowing tube, mixing the chemical sent from the liquid-sending tube 7 and the air flow sent from the blower 3 by the blowing tube 4, and diffusing the chemical from the front directional tip end of the blowing tube 4. The blowing tube 4 is at least constituted by a curved tube 31, an accordion tube 32 and a straight tube 33, and also connected with the blower 3 in the order of the curved tube 31, accordion tube 32 and straight tube 33. At the upper direction of the backpack frame 10, a flexible fixing member 81 capable of being connected with the straight tube 33 is included.

Description

  The present invention relates to a blower-type chemical sprayer that mixes and sprays a medicine such as liquid or powder with a blower air flow.

Patent Document 1 (particularly, FIG. 3) discloses a portable spray device used on the back.
In the spray device of Patent Document 1, the spray port of the chemical liquid, which is the tip of the long air duct, is located in front of the operator in a state where the spray device is carried. The chemical liquid in the tank is mixed with the air flow of the blower in the blower pipe and ejected from the jet outlet.

US2009 / 0008473 A1 (US2009 / 0008473 A1)

However, in the blower type chemical liquid spreader used on the back in this way, a long blower pipe extends from the blower provided on the backpack frame.
As a result, there is a problem with the storage location of the blower type chemical sprayer.
Further, when transporting a blowing chemical solution spreader, it is necessary to lift a heavy blowing chemical solution spreader together with a tank and an engine, and to lift the long blowing tube together so as not to be pulled out. The transportability of the blower chemical sprayer is very poor.

  As described above, in the blower type chemical sprayer, it is required to improve the storage property or the transportability.

  The blower type chemical liquid spreader of the present invention includes a back frame, a blower disposed behind the back frame, a blow pipe connected to the blower at a position below the back frame and extending forward, and a chemical stored in a tank. A liquid feed pipe that feeds the liquid forward along the blower pipe, and mixes the chemical sent from the liquid feed pipe with the air flow sent from the blower through the blower pipe, and sprays the chemical from the front end of the blower pipe The blower chemical spraying machine, wherein the blower pipe is composed of at least a curved pipe, a bellows pipe, and a straight pipe, and is connected to the blower in the order of the curved pipe, the bellows pipe, and the straight pipe, above the backpack frame, A fixing member that is flexible and can be connected to a straight pipe is provided.

  Preferably, a discharge opening of the liquid feeding pipe is provided near the tip of the blower pipe, and a mixing portion for mixing the chemical liquid discharged from the discharge opening and the air flow sent by the blower pipe is provided, and the bellows pipe and the discharge opening are provided. The length between them may be larger than the height of the blower-type medicine spreader.

  Preferably, the fixing member has an annular portion at one end, and a handle is erected on the straight pipe so that the annular portion can be fixed to the handle.

  Preferably, the handle may be provided upright on the air duct while being inclined toward the distal end side of the air duct.

  Preferably, it may have a constriction near the tip of the handle.

  Preferably, an operation lever is provided in the vicinity of the tip of the handle, and the operation lever may extend toward the base of the handle.

In the present invention, since a part of the blower pipe is formed of a bellows pipe, the blower pipe can be operated easily and freely, and the spraying work can be performed rationally.
Further, by connecting the back frame and the straight pipe with a fixing member, the blower pipe can be held in a state bent upward at the bellows part, and the blower type chemical sprayer can be rationally stored and transported.

FIG. 1 is a perspective view of an air blowing type chemical spreader according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the main functions of the blower type chemical liquid spreader of FIG. FIG. 3 is a perspective view showing a state when the blower type chemical liquid spreader of FIG. 1 is stored or transported. FIG. 4 is an enlarged view showing a connection state between the blower pipe and the frame of the blower type chemical sprayer in the state of FIG. 3.

FIG. 1 is a perspective view of a blower type chemical sprayer 1 according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining the main functions of the blower type chemical liquid spreader 1 of FIG.
1 has an engine 2, a blower 3, a blower pipe 4, a pressurization pipe 5, a tank 6, a supply pipe 7, and a mixing unit 8.
The operator carries the blower-type chemical solution spreader 1 and uses the blower pipe 4.
The chemical solution stored in the tank 6 is mixed with the air flow in the blower pipe 4 to be atomized, blown out from the blower pipe 4 together with the air flow, and sprayed on farmland or the like.

The tank 6 is a chemical solution container made of, for example, a plastic material, and is disposed on the front side of the frame 9 of the blower-type chemical solution spreader 1. The front surface of the tank 6 is a back support surface. Thereby, the tank 6 functions as a backpack frame. A cushion material 11 and two shoulder belts 12 are disposed on the back support surface. An operator puts his arm on the shoulder belt 12 and carries the blower-type chemical sprayer 1 on the back in a state where the cushion material 11 on the backrest surface hits the back.
A tank cap 22 is detachably attached to the upper surface of the tank 6 with respect to the chemical solution inlet 21. The tank cap 22 is opened and the chemical solution is poured from the inlet 21 of the tank 6. The tank cap 22 is closed and the tank 6 is sealed. The sealed tank 6 can be pressurized by the air flow of the blower 3.

  The blower 3 and the engine 2 generate an air flow. A motor may be used instead of the engine 2. The engine 2 drives the blower 3 to rotate. The driven blower 3 sucks outside air with a built-in fan and generates an air flow.

The tank 6, the blower 3, and the engine 2 are fixed to the frame 9 of the blower type chemical sprayer 1.
The frame 9 has a frame shape in which the metal tube is rectangular, and the upper and lower portions of the rectangle are bent in the same direction (back side). The frame 9 can be placed on the ground in the lower part.
A tank 6 is disposed on the front side of the frame 9. The tank 6 is fixed to the side portion, upper portion and lower portion of the frame 9 with screws, for example.
The blower 3 and the engine 2 are disposed below the frame 9. The blower 3 and the engine 2 are accommodated between the upper part and the lower part of the frame 9. For example, the blower 3 is fixed to the lower part of the frame 9 by a spring suspension. The engine 2 is fixed behind the blower 3. By adopting such a support structure, the vibration of the engine 2 is hardly transmitted to the frame 9.
Thus, the tank 6, the blower 3, and the engine 2 are attached to the frame 9. The blower 3 and the engine 2 can be firmly fixed to the tank 6 with the tank 6 on the back. Thereby, the apparatus main body 10 as a backpack frame used on the back is constituted.
Moreover, the apparatus main body 10 of the blowing type chemical liquid spreader 1 is configured by the frame 9 to which the tank 6, the blower 3 and the engine 2 are attached in this manner. The upper part of the frame 9 is exposed at the upper part of the apparatus main body 10. The apparatus main body 10 can hold and lift the upper part of the frame 9.

The blower pipe 4 discharges an air flow and is connected to the blower 3 on the lower side. The blower pipe 4 includes a connecting pipe 31, a bellows pipe 32, a cylindrical straight pipe 33, and a tip throttle pipe 34 from the blower 3 side. The air duct 4 extends forward. The air flow of the blower 3 is discharged to the outside through the blow tube 4 from the tip throttle tube 34.
The blower tube 4 can be bent by the bellows tube 32. An operator can adjust the direction of the blower pipe 4 by bending the bellows pipe 32 while carrying the blower-type chemical sprayer 1 on the back.
In addition, the bellows tube 32, the cylindrical straight tube 33, and the tip throttle tube 34 of the blower tube 4 are located on the front side of the frame 9. The connecting pipe 31 is located on the rear side of the frame 9.

The cylindrical straight pipe 33 and the tip throttle pipe 34 protrude forward from the worker from the right side below the worker carrying the blower type chemical liquid spreader 1.
The cylindrical straight pipe 33 is provided with a handle 41 that is held by an operator.
The handle 41 has a grip portion 42 and a tip enlarged portion 43.
The grip portion 42 has a rod shape and is attached to the upper surface of the cylindrical straight tube 33 near the bellows tube 32. The grip portion 42 is erected on the cylindrical straight pipe 33 so as to be inclined toward the distal end side of the cylindrical straight pipe 33.
The tip enlarged portion 43 is fixed to the tip of the rod-like grip portion 42. The tip enlarged portion 43 is formed to have a larger diameter than the grip portion 42. A constriction is formed in the handle 41 by the tip enlarged portion 43 and the grip portion 42.
An operation lever 44 is disposed at the tip of the grip portion 42. The operation lever 44 is attached to the front side of the grip portion 42 and protrudes toward the cylindrical straight tube 33.

The bellows tube 32 is a flexible tube. At the time of use, the bellows tube 32 is bent so that the operator can adjust the direction of the blower tube 4.
Instead of the bellows tube 32, for example, a flexible vinyl tube can be used.

The connecting pipe 31 is a pipe that connects the blower pipe 4 to the blower 3.
The connecting pipe 31 is formed by a bent pipe.
Therefore, the bellows tube 32, the cylindrical straight tube 33, and the tip throttle tube 34 extend in front of the operator in a state where the blower type chemical solution spreader 1 is carried, and the bellows tube 32 becomes straight with respect to the cylindrical straight tube 33. .

The pressure tube 5 is connected between the blower 3 and the tank 6. A part of the air flow of the blower 3 is introduced into the tank 6 through the pressure pipe 5. The tank 6 is pressurized by this air flow.
The front end of the pressurizing pipe 5 extends into the tank 6 and is connected to a jet part 51 having a built-in check valve. Air is discharged into the tank 6 from the ejection part 51. The chemical solution in the tank 6 is agitated by the released air bubbles.

The supply pipe 7 supplies the chemical solution in the tank 6 to the blower pipe 4 and is connected between the tank 6 and the mixing unit 8.
The supply pipe 7 is connected to a supply port 23 formed on a side portion beside the bottom surface of the tank 6. A strainer (not shown) integrated with the supply pipe 7 projects into the supply port 23 of the tank 6 into the tank 6.
An opening / closing valve 61 is provided in the middle of the supply pipe 7. The on-off valve 61 is fixed to the side of the handle 41 of the cylindrical straight pipe 33.
The supply pipe 7 sends the chemical solution stored in the tank 6 forward along the blower pipe 4.

The mixing unit 8 mixes the chemical solution with the air flow in the blower tube 4, and is connected between the cylindrical straight tube 33 and the tip throttle tube 34 of the blower tube 4.
As shown in FIG. 2, the mixing unit 8 includes a throttle unit 71. The throttle unit 71 exerts a venturi effect on the supplied air flow. The tip of the nozzle 72 connected to the other end of the supply pipe 7 is disposed on the upstream side of the throttle unit 71.
The chemical solution supplied from the pressurized tank 6 is discharged from a nozzle 72 serving as a discharge opening of the liquid feeding pipe 4 and becomes a mist at the throttle portion 71. The atomized chemical liquid is discharged from the tip throttle tube 34 of the blower tube 4 by the air flow of the blower tube 4.

At the time of use, the operator holds the blower-type chemical solution spreader 1 in which the chemical solution is put in the tank 6 and holds the handle 41. The operator opens the cock of the on-off valve 61 and operates the operation lever 44 of the handle 41 to operate the engine 2 and the blower 3. Thereby, the mist-ized chemical | medical solution blows off from the front-end | tip of the ventilation pipe | tube 4. As shown in FIG. The operator can adjust the direction of the blower pipe 4 to spray the chemical liquid on a desired land.
At the time of storage, the operator places the blown chemical solution spreader 1 on the floor. Further, the cock of the on-off valve 61 is closed. Thereby, the chemical | medical solution of the tank 6 does not leak out. As shown in FIG. 1, the chemical solution in the tank 6 does not leak from the nozzle 72 even when the blower pipe 4 is placed on the floor.
However, if the cock of the on-off valve 61 is forgotten to close, the chemical solution in the tank 6 leaks from the blower pipe 4 placed on the floor.

FIG. 3 is a perspective view showing a state during storage or transportation of the blower type chemical liquid spreader 1 of FIG.
FIG. 4 is an enlarged view showing a connection state between the blower pipe 4 and the frame 9 of the blower type chemical sprayer 1 in the state of FIG. 3.
As shown in FIGS. 3 and 4, at the time of storing or transporting the blower type chemical sprayer 1, the blower tube 4 can be detached from the frame 9 by hanging an annular strap 81 on the handle 41 of the blower tube 4. Can be fixed.
The annular strap 81 is formed by tying a string in an annular shape so that the handle 41 can be hung, for example, and is passed through the upper portion of the frame 9. Specifically, as shown in FIG. 4, it is attached to the upper part of the frame 9 through the upper part of the frame 9.
In FIG. 4, the annular strap 81 is hung between the operation lever 44 and the grip portion 42.

As described above, in the present embodiment, since a part of the blower tube 4 is configured by the bellows tube 32, the blower tube 4 can be operated easily and freely, and a spraying operation can be performed rationally.
Further, by connecting the back frame 10 and the straight pipe 33 with the annular strap 81, the blower pipe 4 can be kept bent upward at the bellows part 32, and the blower-type chemical sprayer 1 can be reasonably stored, Can be transported.
Moreover, the length from the bellows tube 32 to the discharge opening (the tip of the nozzle 72) in the blower tube 4 is larger than the height of the blower type chemical sprayer 1.
Therefore, as shown in FIG. 3, the tip of the long blower pipe 4 is located above the tank 6. The tip of the nozzle 72 of the mixing unit 8 is also located above the tank 6. Therefore, even if the cock of the on-off valve 61 is forgotten to close, the chemical liquid in the tank 6 does not leak from the nozzle 72 or the blower pipe 4. Since the blower pipe 4 can be set up during storage or transportation, the chemical solution remaining in the tank 6 does not leak from the blower pipe.
Moreover, in this embodiment, the ventilation type chemical | medical solution spreader 1 can be accommodated compactly by standing and accommodating the blast pipe 4. FIG.
Moreover, in this embodiment, the blowing type chemical | medical solution spreader 1 can be conveyed in the state which connected the blast pipe 4 to the flame | frame 9. As shown in FIG. It is not necessary to have the blower pipe 4 during transportation. The upper part of the frame 9 can be lifted with both hands, and the blower type chemical liquid spreader 1 can be easily carried.

For example, the annular strap 81 may be hung between the operation lever 44 of the handle 41 of the blow pipe 4 and the grip portion 42 by passing the annular strap 81 passed through the upper portion of the frame 9.
Alternatively, the annular strap 81 may be hung on the constriction by the tip enlarged portion 43 and the grip portion 42 of the handle 41 or between the grip portion 42 and the cylindrical straight tube 33, for example.
Further, when the handle 41 of the blower tube 4 is hung on the annular strap 81 attached to the frame 9, the bellows tube 32 of the blower tube 4 is bent greatly. As a result, a force for returning the bellows tube 32 to a straight state acts on the annular strap 81. By simply hanging on the annular strap 81 attached to the frame 9, it is possible to hold the blower tube 4 firmly so as not to wobble in the upright state.

In particular, since the annular strap 81 is hung on the handle 41 of the blower tube 4, it is not necessary to provide a portion for hanging the annular strap 81 on the blower tube 4. The blower pipe 4 can be directly attached to the frame 9 in spite of the fact that the blower pipe 4 is formed in a long shape and its tip is located above the tank 6 in the standing state.
In addition, the handle 41 erected on the blower tube 4 is tilted toward the distal end side of the blower tube 4, a distal enlarged portion 43 is formed at the distal end of the grip portion 42 of the handle 41, and an operation lever is provided at the distal end portion of the grip portion 42 44 protrudes. The operation lever 44 extends toward the base side of the handle 41. The annular strap 81 may be hung on any of these. The place to hang can be changed according to the preference of the operator. In any state, it is difficult for the annular strap 81 to come off the handle 41. The raised air duct 4 is less likely to wobble or fall over.
Further, since the handle 41 is inclined toward the distal end side of the blower tube 4, the handle 41 is easy to operate.

Further, as shown in FIG. 1, the bellows tube 32 of the blower tube 4 and the blower 3 are connected by a bent connecting tube 31 with respect to the blower tube 4.
The bellows tube 32 of the blower tube 4 is disposed on the front side of the frame 9.
Therefore, the bellows tube 32 is straight with respect to the straight tube 33 during use with the blower type chemical liquid spreader 1 on the back. When the bellows tube 32 is bent, a force for returning the bellows tube 32 is generated, but such a force is difficult to act. The operator can adjust the direction of the blower tube 4 with a light operational feeling.
Further, when the blast pipe 4 is erected, the bent connection pipe 31 faces forward, so that the bellows pipe 32 is greatly bent. The lower end of the upright cylindrical straight pipe 33 is located on the front side of the frame 9, and the upper end of the blower pipe 4 is located on the information on the frame 9 or on the rear side. The greatly bent bellows tube 32 applies a force to the annular strap 81 to return straight. By simply hanging the annular strap 81 on the handle 41 of the blower tube 4, the blower tube 4 can be firmly held in a standing state.

  The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications or changes can be made without departing from the scope of the invention.

For example, in the above embodiment, the handle 41 of the blower tube 4 is fixed to the frame 9 using the annular strap 81.
In addition to this, for example, a ring is formed on one of the air pipe 4 and the frame 9 and a hook is formed on the other, and the air pipe 4 is fixed to the frame 9 by connecting the ring and the hook. Also good.
Further, the annular strap 81 is not entirely formed in an annular shape, and may be provided with an annular portion at the tip portion, for example.

DESCRIPTION OF SYMBOLS 1 ... Blast-type chemical solution spreader 3 ... Blower 4 ... Blower pipe 6 ... Tank 7 ... Supply pipe (liquid feeding pipe)
8 ... Mixing unit 9 ... Frame 10 ... System unit (backpack frame)
31 ... Connecting pipe (curved pipe)
32 ... Bellows pipe 33 ... Straight pipe 41 ... Handle 42 ... Grip part 43 ... End enlarged part 44 ... Operation lever 72 ... Nozzle (discharge opening)
81 ... Annular strap (fixing member)

Claims (6)

A backpack frame,
A blower disposed behind the backpack frame;
A blower pipe connected to the blower at a lower position of the backpack frame and extending forward;
A liquid feeding pipe that sends the chemical stored in the tank forward along the air blowing pipe, and
It is a blown chemical solution spreader that mixes the chemical solution sent from the liquid feeding tube and the air flow sent by the blower tube from the blower, and spreads the chemical solution from the front end of the blower tube,
The blower pipe is composed of at least a curved pipe, a bellows pipe, and a straight pipe, and is connected to the blower in the order of a curved pipe, a bellows pipe, and a straight pipe.
A flexible fixing member that can be connected to the straight pipe is provided above the backpack frame.
Air blowing type chemical sprayer. A discharge opening of the liquid feeding pipe is provided near the tip of the blower pipe,
A mixing unit that mixes the chemical liquid discharged from the discharge opening and the air flow sent by the blower pipe;
The blower type chemical dispenser according to claim 1, wherein a length between the bellows tube and the discharge opening is larger than a height dimension of the blower type chemical spreader. The fixing member has an annular portion at one end;
A handle is erected on the straight pipe,
The blower type chemical spraying device according to claim 1, wherein the annular portion can be fixed to the handle. The blast type chemical liquid spreader according to claim 3, wherein the handle is tilted toward a tip side of the blast pipe and is erected on the blast pipe. The blower type chemical sprayer according to claim 3, wherein the blower has a constriction near the tip of the handle. An operation lever is provided near the tip of the handle,
The blower type chemical spraying device according to claim 3, wherein the operation lever extends toward a base side of the handle.

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