JPH0353735Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a chemical injection funnel for a small volume sprayer that is detachably attached to the chemical injection port of the chemical tank of the small volume sprayer and can filter the chemical for spraying. It is related to.

[Prior Art] In general, a small-volume sprayer is a machine that uses the ejector action of pressurized air to suck a chemical solution diluted to a high concentration of about 15 to 20 times from a chemical solution tank into a spray head and spray it. Due to its high viscosity and lack of fluidity, it is extremely prone to clogging. Conventionally, only the supernatant liquid is injected into the chemical tank, 2. Easily soluble substances such as emulsions and liquid preparations are mainly used, and 3. The dilution ratio is approximately 100 times. 4. Squeeze the medicinal solution and put it into the medicinal solution tank. 5. As shown in FIG. A disk-shaped net 4 that almost covers the opening 3 is integrally formed inside the main body 1, and the opening 3 is connected to the inlet 6 of the chemical tank 5 of the small amount sprayer shown in FIG.
A funnel 7 into which the edge 2 of the funnel 7 is inserted is used. 6. Measures such as installing a net in the chemical tank so as to cover the inlet 6 of the chemical tank are taken.

[Problems to be solved by the invention] Since the conventional techniques are as described above, 1 and 4 of the explanation of the prior art are troublesome to work, waste of chemical solution and time consuming, and 2 is limited in the number of chemical solutions that can be used. 3 requires a long spraying time, and shortening it requires a large spraying capacity, and the chemical solution tank becomes large, making it difficult to transport. Because it is simply inserted into the drug solution, it becomes unstable when injecting the drug solution and is difficult to use.No. 6 is because the mesh body is always in the drug solution, so the mesh body wears out quickly and the drug solution becomes unstable. There are problems such as difficulty in cleaning due to dry adhesion.

In addition, since the chemical is sprayed as fine particles of about 10 microns, it is necessary to thoroughly strain the chemical solution, and the fine mesh of the screen for this purpose makes it easy for the chemical to settle, so the screen must be cleaned frequently after every spraying. At this time, a large force is applied to the net, so in the case of a type in which the resin funnel body and the net are integrated, there are problems such as the net breaks easily. In order to efficiently perform overwork using a fine mesh mesh, it is necessary to maintain a certain height from above the funnel and pour in the chemical solution all at once, and at that time, the funnel tilts or comes off, causing the chemical solution to be scattered around the funnel. , there were some inconveniences, such as putting pressure on the workers.

[Means for solving the problem] This invention was devised in view of the above-mentioned circumstances, and it discharges compressed air from the pneumatic feeding means, sucks in the medicinal solution from the medicinal solution tank by its ejector action, and sprays it. In a small amount sprayer equipped with a wet jet head, the cylindrical main body has a connecting part connected to the end of the inlet of the chemical liquid tank, and the main body is removably attached to a stepped part formed inside the main body. The present invention proposes a chemical liquid injection funnel for a small amount sprayer, which is equipped with a net that substantially closes the inside of the cylinder of the main body, and a fixing means that can fix the net.

[Function] The drug solution injection funnel of this invention having the above-described structure is prepared for a drug solution injection operation by screwing the funnel to the injection port from which the lid has been removed.

[Example] An example of this invention will be described below based on the accompanying drawings.

Figures 1 and 2 are a perspective view and a cross-sectional view of the spray head of a small amount sprayer using a funnel of this invention. A spray port 12a is opened to the outside at the tip of the vortex chamber 12, and the vortex chamber 12 is connected to the vortex chamber 12 through an air pipe 13 made of a flexible material such as nylon. It is communicated with a certain compressor 14. Further, within the jet head 11, there is a nozzle 1 directed toward the inside of the swirl chamber 12.
5 is disposed, and the nozzle 15 is connected to a chemical liquid tank 18 (shown in the third diagram) in which a chemical liquid 17 is stored via a chemical liquid conduit 16 formed of a flexible material such as silicone resin.
The suction pipe 19 (shown in the fourth figure) is connected to the suction pipe 19 (shown in the fourth figure). By discharging the compressed air from the compressor 14 to the outside from the spray port 12a through the vortex chamber 12, the chemical liquid 17 in the chemical liquid tank 18 is transferred to the nozzle 15 through the suction pipe 19 and the chemical liquid pipe line 16 due to the ejector action. It is inhaled, discharged from the nozzle 15, and sprayed together with compressed air from the spray port 12a. An axial blower 20 is disposed behind the jet head 11 to diffuse the chemical solution 17 sprayed from the jet head 11. The jet head 11, the chemical tank 18, the blower 20, etc. are mounted on a stand 21, and the compressor 14, etc. are mounted on a cart 23 that can be moved on wheels 22.

Further, as shown in FIG. 3, the chemical liquid tank 18 includes a container-shaped tank main body 27, which is provided with an inlet 26 for injecting a chemical liquid and has an internally threaded portion 24 formed thereon and is formed on almost the entire surface of the ceiling portion 25. Main body 27
a handle portion 28 that can be hung on the stand 21;
A lid body 30 that includes a male threaded portion 29 screwed to the female threaded portion 24 of the injection port 26 and is capable of opening and closing.
, a stirrer 31 that is attached to the lid 30 and can stir the chemical solution 17 in the tank body 27 , and the suction pipe 19 that penetrates the lid 30 and extends to the bottom 32 of the tank body 27 . It will be done.

In the chemical liquid tank 18, the funnel 40 according to this invention has a large-diameter portion 4 extending upwardly from a stepped portion 41 formed in the cylindrical interior, as shown in FIG.
2 is a female threaded portion 2 of the injection port 26 on the outer periphery downwardly.
A main body 45 is integrally formed with a small diameter portion 44 formed with a male threaded portion 43 that is threadedly connected to the main body 45;
A net 46 is formed in a dish shape as shown in FIG. 6 and is removably attached to the stepped portion 41 of the main body 45 so as to substantially close the inside of the main body 45. The net body 4 is fitted into the stepped portion 41 of
Ring-shaped fixing means 4 for fixing 6 in the main body 45
7.

Note that since the net is interposed and held between the main body 45 and the fixing means 47, it is not limited to the shape shown in FIG. You can.

As shown in FIG. 5, the fixing means 47 may have a circular lattice shape. Further, as shown in FIG. 7, the main body 45 may have a female threaded portion 43' formed in its small diameter portion 44 instead of the male threaded portion 43 (shown in the third figure). is injection port 26
A male threaded portion (not shown) is used instead of the female threaded portion 24 of
is formed, and in order to prevent the chemical solution from leaking to the outside of the tank body 27 from between the edge 26a of the injection port 26 and the small diameter part 44 of the main body 45, the small diameter part 4 is formed.
It is necessary to insert a packing 48 into the inner part 4.

In the above, a pair of threaded portions are provided at the connecting portions of the funnel 40 and the tank body 27, respectively, so that they can be screwed together.
It may be fitted and locked and detachable.

[Effects of the invention] As described above, the chemical liquid injection funnel of the small amount sprayer according to this invention has the following effects.

(1) As shown in FIG. 3, the lid 30 is removed from the inlet 26, and the funnel 40 of this invention is connected by screwing the threaded portion 43 or 43' to the threaded portion 24, etc. of the tank body 27. , inlet 26
At this time, since the main body 45 is screwed to the injection port 26, there is no fear that it will fall off and splash the chemical solution on the operator.

(2) Since the net body 46 can be freely removed by removing the fixing means 47 from inside the main body 45,
It is possible to easily clean and replace the net 46 and to clean every corner of the main body 45.

(3) Since it is screwed to the injection port 26 formed on almost the entire surface of the ceiling 25 of the chemical solution tank 18, the inner diameter of the main body 45 of the funnel 40 can be made large, and a large amount of medicine can be poured from a low position. It is difficult to get clogged, air can be easily removed, finer mesh can be used, and the chemical solution is completely filtered, so there is no need for a water absorption strainer.

(4) By using the grid-shaped fixing means 47 shown in FIG. 5, scattering is prevented when the chemical solution 17 is injected from the upper opening of the main body 45.

(5) It is also possible to utilize the difference in level between the large diameter portion 42 and the fixing means 47 to connect another funnel by using a mesh that is coarser than the mesh 46 for double straining.

(6) As a result of the above-mentioned effects, the problems of the conventional funnel are solved, and anyone can easily use it, and the conventional device can be used regardless of experience.

The above effect is the same even if the connecting portions of the funnel 40 and the tank body 27 are fitted and locked, respectively.

[Brief explanation of drawings]

Figures 1 and 2 are a perspective view and a cross-sectional view of the jet head of a small amount spreader using a funnel of this invention;
The figure is a cross-sectional view showing how the funnel of this invention is attached to a chemical liquid tank, Figure 4 is a cross-sectional view showing the lid body attached to the chemical liquid tank shown in Figure 3, and Figure 5 is a cross-sectional view showing the funnel of this invention used in the chemical liquid tank. FIG. 6 is a perspective view showing the fixing means of another possible embodiment, FIG. 6 is a perspective view showing the net used in the funnel of this invention, and FIG. 7 is a perspective view of another embodiment used in the funnel of this invention. A sectional view showing the main body, and FIGS. 8 and 9 are a perspective view showing a conventional funnel and a sectional view showing a chemical solution tank. In the figure, 11... jet head, 14... compressor (air pressure feeding means), 17... chemical liquid, 18
... Chemical tank, 26 ... Inlet, 41 ... Stepped section, 43 ... Male thread section, 45 ... Main body, 46 ...
Net body, 47...fixing means.

Claims (1)

[Claims for Utility Model Registration] (1) In a small-volume sprayer equipped with a spray head capable of discharging compressed air from a pneumatic feeding means, inhaling and atomizing a chemical liquid from a chemical liquid tank by its ejector action, the chemical liquid tank 18 The cylindrical main body 4 is formed with a connecting portion that connects to the end of the inlet 26 of the cylindrical body 4.
5, and a stepped portion 4 formed inside this main body 45.
1. A funnel for injecting a chemical solution for a small amount sprayer, comprising a net 46 which is detachably attached to a main body 45 and substantially closes the inside of the cylinder of the main body 45, and a fixing means 47 which can fix the net 46. (2) A chemical liquid injection funnel for a small amount sprayer according to claim 1, wherein the connecting portion of the main body 45 is a male screw portion 43 or a female screw portion 43'. (3) A chemical solution injection funnel for a small amount sprayer according to claim 1, wherein the connecting portion of the main body 45 is capable of being fitted and locked. (4) A chemical solution injection funnel for a small amount sprayer according to claim 1, wherein the fixing means 47 is in the form of a ring fitted inside the main body 45. (5) A chemical liquid injection funnel for a small amount sprayer according to claim 1, wherein the fixing means 47 is in the form of a grid fitted inside the main body 45. (6) The chemical liquid injection of a small amount sprayer according to claim 1, wherein the fixing means 47 is fitted inside the main body 45 and has a ring shape with a grid inside the fixing means 47. Funnel for use.