JPH067828U - Chemical stirrer - Google Patents

Abstract

(57) [Abstract] [Purpose] To maintain the stability of stirring work in a chemical liquid stirrer in which a stirring blade is connected to a power source through a flexible liner. [Constitution] The stirring blade (6) is attached to the tip of the flexible liner (1) in which the flexible shaft (3) is rotatably inserted and supported.
A basket (4) with a bottom opening that supports the stirring blade (6) and covers the stirring blade (6) is provided with a bottom plate (10) on the lower end surface of the basket (4). In a chemical liquid stirrer in which the stirring blade (6) is linked to an appropriate power source through a flexible shaft (3) so as to be pushed out to the side, the stirring blade
There is a hole in the center of the bottom plate (10) corresponding to the center of rotation of (6).
(11) is formed, and the shape of the bottom plate (10) is formed in a mountain shape such that the central portion becomes higher. Further, in order to further improve the stirring performance, the surface of the bottom plate (10) is formed in a radial waveform.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chemical liquid stirrer mainly used for stirring agricultural chemical liquid such as Bordeaux liquid or slaked lime liquid in a chemical liquid tank.

[0002]

[Prior art]

 In this type of chemical liquid agitator, a flexible liner 1 having a flexible shaft 3 therein is connected to a power source 25 such as a power sprayer as shown in FIG. A car 4 having an opening at the lower end is provided, and a bottom plate 30 having a flat plate shape is conventionally provided at the lower end of the car 4 as shown by an imaginary line.

As a method of use, the stirring blade 6 is put into a chemical solution tank 21 in which the pesticide solution is stored, and the pesticide solution in the tank 21 is agitated. When transferring to a tank or the like of the power sprayer by the hose 22 or the like, stirring work is performed in parallel with suction work by the suction hose 22 so that precipitation etc. do not occur. FIG. 4 shows a vertical cross-sectional view of a stirring blade portion of a conventional chemical liquid agitator. The bottom plate 30 is formed in a flat plate shape as described above, a small hole 31 is formed in the central portion, and a nut 32 for fixing the bottom plate is provided. It comes to the bottom of the tank through. Due to the rotation of the stirring blades 6, the chemical liquid in the tank 21 is sucked from above the cage 4 and pushed out downward, and abuts the bottom plate 30 and is radially sent to the outer peripheral portion in the tank.

[0004]

[Problems to be solved by the device]

 However, when the bottom plate 30 is formed in a flat plate shape, when the blade portion of the stirrer is put into the tank 21, the liquid resistance is large and the liquid flow on the lower side of the bottom plate is not constant. , Splashing while turning, it sinks. In addition, even after reaching the bottom of the tank, the posture is unstable and rattling. They cause a decrease in stirring efficiency and also cause damage to the inner surface of the tank or the suction hose 22.

[0005]

[Means for Solving the Problems]

 According to the present invention, a flexible liner having a flexible shaft rotatably inserted therein is provided with a cage having a lower end opening which supports a stirring blade and covers the stirring blade, and a bottom plate is provided on a lower end surface of the cage. In a chemical liquid stirrer in which a stirring blade is linked to an appropriate drive device through a flexible shaft so that the liquid is discharged to the bottom plate side by the rotation of the stirring blade, the bottom plate corresponding to the center of rotation of the stirring blade is The chemical liquid agitator is characterized in that a hole is formed in the central portion and the shape of the bottom plate is formed in a mountain shape so that the central portion becomes higher. Further, in order to further improve the stability and stirring function of the car, the surface of the bottom plate is formed into a radiating corrugated shape.

[0006]

[Action]

 By the rotation of the stirring blade, the chemical liquid pushed downward from above is guided by the surface of the chevron-shaped bottom plate, and is smoothly and promptly guided to the outside. Also, when the stirring blade part sinks, the bottom plate is cone-shaped, and there is a hole in the center part, and since the pressure near the hole part is negative pressure, the liquid under the bottom plate is smooth. Guided to the hole side, it escapes upward from the hole, whereby the stirring blade sinks together with the basket in a stable posture and reaches the bottom of the tank. Even in the state of bottoming, the chemical liquid sucked in from above is pushed out to the bottom plate side in the same manner as above, and is radially pushed outward from the surface of the chevron-shaped bottom plate. At the same time, a negative pressure is generated in the vicinity of the hole in the center, so that the chemical solution is also sucked from below the bottom plate, which causes the car and the bottom plate to stick to the bottom of the tank, stabilizing its posture. .

[0007]

【Example】

 In FIG. 1, a flexible flexible liner 1 rotatably supports a flexible flexible shaft 3 inside thereof, and a tip end portion of the flexible liner 1 is fixed to an upper end boss portion 5 of a car 4. An agitating blade 6 is fixed to the tip of the flexible shaft 3, and the agitating blade 6 is covered by the cage 4 on the upper surface and the outer peripheral side. The car 4 is formed into a cylindrical lattice frame shape by, for example, aluminum die casting, and thus has a large number of wide window holes on the upper surface and the cylindrical outer peripheral surface. The lower end of the car 4 is open, and the bottom plate 10, which is a feature of the present invention, is fixed to the lower end.

In FIG. 2 showing a perspective view of the bottom plate 10, the bottom plate 10 is formed in a cone-like mountain shape having a higher central portion, and has a hole 11 for liquid escape at the central top portion. The inner diameter of 1 is set to be slightly larger than the diameter of the flexible liner 1, for example. Further, four branch hole portions 11a which are continuous with the hole 11 and extend in all directions are formed. The bottom plate 10 is formed in a corrugated shape over the entire circumference, whereby the surface of the bottom plate 10 is provided with a large number of radially extending guide grooves 10a. On the outer peripheral edge of the bottom plate 10, upward mounting protrusions 14 are integrally formed, for example, at three locations at equal intervals in the circumferential direction. The mounting protrusions 14 are formed on the outer periphery of the car 4 in FIG. Fit it on the wall and fix it to the car 4 with an appropriate stop ring 15 or bolts. The agitating blade 6 is formed in a blade shape that sucks in the chemical liquid above and pushes it downward by its normal rotation.

Next, the operation will be described. In FIG. 3, about 300 to 500 kiloliters of a chemical such as Bordeaux liquid or slaked lime liquid is stored in the chemical liquid tank 21, and a suction hose 22 or the like is inserted. The suction hose 22 is connected to, for example, a tank of a power sprayer via a suction pump 23 or the like, sucks the chemical solution in the tank 21 and supplies it to the tank or the like.

Since solid components and the like are precipitated in the chemical liquid in the chemical liquid tank 21, it is necessary to constantly stir during the suction work by the suction hose 22 in order to take out the chemical liquid of uniform quality. Therefore, the upper end of the flexible liner 1 is connected to the power take-off portion of the power source 25 such as a power sprayer, and at the same time, the upper end of the flexible shaft 3 is interlockingly connected to the power take-off shaft (not shown). The stirring blade 6 is rotated and charged into the tank 21 from above.

Although the stirring blade 6 sinks, the bottom plate 10 is formed in a cone-shaped mountain shape, and a hole 11 of an appropriate size is formed in the central portion. Is smoothly guided to the central portion and passes upward through the hole 11, and the chemical liquid pushed out toward the bottom plate 10 by the rotation of the stirring blade 6 is guided to the cone-shaped surface of the bottom plate 10 and is radially formed. It is pushed out evenly in all directions and spreads out. At the same time, a negative pressure is generated in the vicinity of the central hole 11, so that the chemical liquid is forcibly sucked from below the bottom plate 10. Therefore, the stirring blade 6 sinks together with the basket 4 and the like in a stable posture and reaches the bottom of the tank without bouncing. Even in the bottomed state, the chemical liquid sucked from above is pushed out to the bottom plate 10 side in the same manner as above, and is radially pushed outward from the chevron surface of the bottom plate 10. At the same time, a negative pressure is generated in the vicinity of the central hole 11 so that the chemical solution is also sucked from below the bottom plate 10 through the hole 11, whereby the car 4 and the bottom plate 10 are adhered to the bottom of the tank. And the posture stabilizes.

[0012]

[Another embodiment]

 (1) The corrugations formed on the bottom plate 10 may have a spiral shape when viewed from above. Of course, it is also possible to eliminate the corrugation and make it merely a conical shape.

[0013]

[Effect of device]

 As described above, according to the present invention, the bottom plate 10 fixed to the lower end of the cage 4 having the lower end opening is formed in a mountain shape having a high central portion and the hole 11 is formed in the central portion. When the blades 6 are put into the chemical liquid tank 21, the liquid on the lower side of the bottom plate 10 is guided to the lower surface of the chevron-shaped bottom plate 10, flows upward through the central hole 11, and the car 4 flicks. Without reaching the bottom, it reaches the bottom of the tank 21 in a stable posture and quickly.

At the bottom of the tank 21, the chemical liquid sucked from above and pushed downward is guided by the chevron-shaped surface of the bottom plate 10 and smoothly pushed outward, and at the same time, the central hole Negative pressure in the vicinity of 11 causes air to be sucked in from below the bottom plate 10, and the car 4 and the bottom plate 10 adhere to the bottom of the tank, stabilizing their posture. Therefore, stable stirring performance can be secured, and the risk of damaging the tank etc. is reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of a chemical liquid agitator according to the present invention.

FIG. 2 is a perspective view of a bottom plate alone.

FIG. 3 is a schematic vertical sectional view showing a usage state of the chemical liquid agitator of the present invention.

FIG. 4 is a vertical sectional view of a conventional example.

[Explanation of symbols]

 1 Flexible liner 3 Flexible shaft 4 Basket 6 Stirring blade 10 Bottom plate 11 Hole

Claims (2)

[Scope of utility model registration request] 1. A flexible liner in which a flexible shaft is rotatably inserted and supported is provided with a cage having an opening at a lower end for supporting a stirring blade and covering the stirring blade, and a bottom plate is provided at a lower end surface of the cage. In a chemical liquid stirrer in which a stirring blade is connected to an appropriate drive source through a flexible shaft so that the liquid is discharged to the bottom plate side by rotation of the stirring blade, in the center of the bottom plate corresponding to the center of rotation of the stirring blade. A chemical liquid agitator characterized in that a hole is formed in a portion and the shape of the bottom plate is formed into a chevron shape such that the central portion is higher. 2. The chemical liquid agitator according to claim 1, wherein the surface of the bottom plate is formed in a radial waveform.