JPH057285Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention a. Industrial field of application The present invention relates to an air jet spreading device suitable for spreading sand at golf courses and the like.

b. Conventional technology and its problems Conventionally, the method used for sand spreading work was to adjust the amount of sand with a manual valve and send high-pressure air into an air hose to spread the sand. Ta.

However, in such a method, the apparatus is complicated and large-scale, requires time and effort to operate, and is difficult to work while moving. For this reason, it is completely unsuitable for sand scattering work in relatively large areas such as golf courses.

B. Structure of the invention a Means for solving the problem The present application attempts to solve the above-mentioned problem with the following structure.

That is, in the present invention, a mixing chamber 7 and an air cylinder 8 are connected to the lower end of a sand tank 3 having an air catch valve via a blower 5.
In addition, an air inlet 8A is connected to the rear end of the air cylinder 8, and an air hose 9 is connected to the front end, and a nozzle 10 is attached to the tip of the air hose 9. , an intermediate air hose 1 penetrated from the outside so as to be located at the axis of the air hose 9
The distal end 11A of the air hose 1 is provided to reach the vicinity of the nozzle 10, and the distal end 11B is pulled out from the air cylinder 8 section, and the air compressor 4 is connected to the air hose 9. Air jet holes 1 at intervals
1C is a sand air jet dispersing device which is bored at a predetermined angle from the axis of the intermediate air hose 11 to the inner wall of the air hose.

In this case, an air jet hole 11C drilled in the intermediate air hose 11 toward the nozzle direction.
can be bored at an angle of 45° from the axis of the intermediate air hose to the inner wall of the air hose.

Also, an intermediate float 1 for fixing the intermediate air hose 11 at the axial center position of the air hose 9.
It is also possible to construct a link part 12A that is fitted into the intermediate air hose at 2, and an appropriate number of legs 12B that contact the inner wall of the air hose radially from this link part.

Furthermore, the sand tank, the air compressor, etc. can also be installed on the loading platform of the vehicle.

b Example 1 of the invention is a sand air jet spreading device of the invention. 2 is a vehicle. 3 is a sand tank disposed at the rear of the loading platform of the vehicle. 4 is an air compressor disposed at the front of the loading platform of the vehicle.

Therefore, the sand tank is composed of a lower cone portion 3A and an upper cylindrical body 3B, and an inverted conical input portion 3C is formed at the upper opening of this cylindrical body 3B. An air catch valve 3D is provided so as to be movable up and down.

3E is an air cylinder that raises and lowers this air catch valve 3D, 3E1 is a supply pipe,
3E2 is an air discharge pipe.

3F is an air vibrator attached to the cone portion 3A. The air catch valve shown in FIG. 2 is a catch valve that seals the air in the sand tank, and is intended to strengthen the seal by also utilizing the air in the tank.

3G is an air inlet.

Reference numeral 5 denotes a blower connected to the opening at the lower end of the sand tank, and blades 5B are provided in the chamber 5A so as to be rotatable by a motor 6.

Reference numeral 7 denotes a vertically cylindrical mixing chamber connected below the blower 5, and an air cylinder 8 is connected horizontally to the lower end of this mixing chamber.

8A is an air inlet connected to the rear end of the air cylinder 8, and 9 is an air hose connected to the front end of the air cylinder 8.

And at the end of this air hose there is nozzle 1.
0 is attached.

The dimensions of the nozzle are 50 mm in length and 80 mm in width at the tip opening.

Reference numeral 11 denotes an intermediate air hose inserted so as to be located at the axis of the air cylinder 8 and air hose 9, and the tip 11A of this intermediate air hose reaches near the nozzle 10.

The end 11B is connected to the air cylinder 8.
The air compressor 4 is connected to the air compressor 4.

11C is an air jet hole drilled in the intermediate air hose toward the nozzle,
The hole is formed at an angle of 45° from the axis of the intermediate air hose to the inner wall of the air hose.

In this case, the diameter of the air jet hole above is 3.7
mm, and the hole interval 11C1 is 500 mm,
The narrower the space, the better the diffusion.

Further, the inner diameter 91 of the air hose 9 was suitably 38 mm, and the outer diameter 111 of the intermediate air hose 11 was suitably about 15 mm.

Reference numeral 12 denotes an intermediate float for fixing the intermediate air hose to the intermediate air hose, and a link portion 12A fitted to the intermediate air hose;
Four legs 12B are arranged radially from this link portion and contact the inner wall of the air hose.

13 indicates sand.

c. Effect The method of the present application is to place sand in a sand tank, install it on top of a vehicle, and spread the sand using air from a compressor.

However, unlike the conventional method, a motor rotates a blower to send a certain amount of sand into the mixing chamber, mix it with the air that enters from the air inlet, and send it into the air hose.

Also, since the sand that is sent in has a heavy specific gravity, it accumulates at the bottom.

Air is passed through the intermediate air hose from the intermediate air inlet, and air is injected from the air jet hole to disperse the sand.

The spread sand is placed on the air belt inside the air hose and sent out to be spread from the outlet.

As a result, air is injected from the air jet holes in the same direction, and the sand is dispersed.

C. Effects of the invention In contrast to the conventional method, which uses a manual valve to adjust the amount of sand and sends high-pressure air into an air hose to spread the sand, the method of the present application uses low-pressure air and can be used over long distances. A hose transports sand and can automatically spread a fixed amount of sand.

As a result, the same amount of sand in the sand tank can be sprayed from the nozzle depending on the number of rotations of the blower.

b) Sand can be dispersed by air injected from the 45° angled air jet hole in the intermediate air hose.

c By fixing the intermediate air hose with an intermediate float, the air in the air hose moves as well, making it possible to hold the air belt.

d) Sand can be spread with a hose over long distances using low-pressure, low-pressure air, and by attaching it to a vehicle, sand can be spread anywhere, solving the problems of conventional methods.

[Brief explanation of the drawing]

Figure 1 is a side view when installed on a truck, Figure 2 is a front view of the sand tank, Figure 3 is an enlarged sectional view of the main parts, Figure 4 is a longitudinal sectional view of the blower, and Figure 5 is A. - An enlarged end view on the line A, Figure 6 is an enlarged view of the air jet hole portion, Figure 7 is an enlarged end view on the line B-B,
FIG. 8 is a plan view of the nozzle portion. 1...Sand air jet spreading device, 2...Vehicle, 3...Sand tank, 4...Air compressor, 5...Blower, 6...Motor, 7...Mixing chamber, 8...Air cylinder, 9...Air hose, 10...Nozzle, 11...Intermediate air hose, 12...Intermediate float.

Claims (1)

[Claims for Utility Model Registration] 1. A mixing chamber 7 and an air cylinder 8 are connected to the lower end of the sand tank 3 having an air catch valve via a blower 5, and an air cylinder 8 is connected to the rear end of the air cylinder 8. The inlet 8A is connected, and an air hose 9 is connected to the front end, and a nozzle 10 is attached to the tip of the air hose 9 so as to be located at the axis of the air cylinder 8 and the air hose 9. The distal end 11A of the intermediate air hose 11 penetrated from the outside is provided so as to reach the vicinity of the nozzle 10, and the distal end 11B is pulled out from the air cylinder 8 section and connected to the air compressor 4. Furthermore, air jet holes 11C are formed in the air hose 9 at a predetermined interval from the axis of the intermediate air hose 11 at a predetermined angle with respect to the inner wall direction of the air hose. air jet spraying device. 2. The air jet hole 11C drilled in the intermediate air hose 11 toward the nozzle is formed at an angle of 45° from the axis of the intermediate air hose to the inner wall of the air hose. A sand air jet spreading device according to claim 1 of the patent registration claim. 3 Connect the intermediate air hose 11 to the air hose 9.
intermediate float 12 for fixing at the axial center position of
Claims for Utility Model Registration: A link part 12A that is fitted into the intermediate air hose, and an appropriate number of legs 12B that radially contact the inner wall of the air hose from this link part. The air jet spreading device for sand according to items 1 and 2. 4. The sand air jet dispersion device according to any one of claims 1 to 3 of the utility model registration claim, wherein the sand tank, the air compressor, etc. are arranged on the loading platform of a vehicle.