JPS6329902Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pump for conveying solids having a cover provided on the front surface of the impeller in order to convey the golf balls with fluid without damaging them.

Collecting golf balls at the golf driving range,
Conventionally, in systems for reuse, it has been common practice to transport balls by means of a belt conveyor. However, with such devices, several units must be arranged in series for long-distance transport, and there is no flexibility in dealing with bends in the course, so the transport route cannot be planned freely. There was an unavoidable need for human resources to attend to the collection. In addition, from a maintenance perspective, with conventional equipment, there is a high risk of damage to the equipment due to foreign objects getting stuck in it.
Also, regular refueling was required.

Therefore, it has been considered to transport the golf ball using a liquid that is moved by a pump. When water flow is used, the conveyance route can be freely selected by extending the discharge pipe, and since the water is flowed by a pump, automatic operation and unmanned operation are possible, and equipment costs are low. On the other hand, if the pump is used as is, there is a risk that the golf ball will come into contact with the impeller and damage the ball. In addition, impeller paint, rust, etc. adhere to the ball, reducing the lifespan and commercial value of the golf ball.

In order to eliminate these drawbacks, this invention provides a cover in front of the impeller of the pump placed in the golf ball transport channel to prevent contact between the golf ball and the impeller, which allows fluid to freely pass through. In addition, in order to prevent the ball from sticking to the portion of the cover corresponding to the impeller eye, the center portion of the cover is made to protrude forward (i.e., in the direction of the suction port) and has a convex taper. With this invention, a pump for transporting solids can be obtained which can correspond to a free transport route, can be operated automatically and unmanned, has low equipment cost, and can transport golf balls smoothly without damaging them at all.

To explain the figures, Fig. 1 is a side sectional view of the pump for transporting solids, and Fig. 2 is a view showing the cover viewed from the front. Part 2,
It has a swirl chamber 3, a suction port 4, and a discharge port 5, and the swirl chamber 3
It is placed in the conveyance channel 7 by legs 6 attached to the. 8 is a ball conveyed through the channel.

The balls 8 are also sucked into the pump from the suction port 4 along with the water flowing through the flow path by the pump, and are discharged from the discharge port 5 and transported. At the front of the impeller, the cover 20 is removed from the impeller and attached to the side wall 9 of the impeller chamber.

As shown in FIGS. 1 and 2, the cover 20 is composed of several radial ribs 21,... and a spiral ring 22 attached to the ribs, so that water can freely pass through. It's getting old. It goes without saying that the cover 20 may have any configuration as long as water can freely pass through it.

However, if the cover 20 is flat as shown in FIG. 1, there is a risk that the balls will stick to the cover at a portion corresponding to the center point 11 of the impeller and will not flow smoothly to the discharge side. Therefore, in this invention, the portion of the cover corresponding to the eye of the impeller is made to protrude forward (that is, toward the suction port) to form a convex taper.

FIG. 3 is a side sectional view of the pump of this invention, in which the same reference numerals as in FIG. 1 represent the same parts.
That is, the pump 10 has an impeller 1, a motor part 2, a vortex chamber 3, a suction port 4, and a discharge port 5, is placed in a flow path 7 by legs 6, and sucks balls 8 and conveys them through the flow path. Further, a cover 20 is attached to the impeller chamber side wall 9 on the front surface of the impeller 1.

The cover 20 is also made up of several radial ribs 21, ... and a spiral ring 22, but in the ribs 21, the centerpiece 1 of the impeller 1
As shown in the figure, the portion corresponding to 1 is made to protrude forward (that is, toward the discharge port) to form a convex tapered portion 21'. By doing so, the ball 8 that reaches the cover 20 along with the water flow sucked from the suction port 4 toward the center part 11 of the impeller 1 will have a suction force because the center part of the cover is tapered convexly. However, the force causes the ball to flow toward the outer circumference of the cover along the taper without being attracted, and is also pushed by the ball that is sucked in next, so the ball smoothly flows into the water flow discharged from the impeller. Then, it is conveyed toward the discharge port 5. Incidentally, FIG. 4 shows a part of the cover 20 in an enlarged manner. The front view of the cover is similar to FIG. 2.

This invention has the above-mentioned configuration, and provides a pump that has a relatively simple structure and can automatically transport golf balls along a free path at low cost without damaging them.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of the pump with the cover attached, FIG. 2 is a front view of the cover, FIG. 3 is a side sectional view of the pump of this invention, and FIG. 4 is an enlarged view of the cover. Explanation of symbols, 1... impeller, 2... motor section, 3... swirl chamber, 4... suction port, 5... discharge port, 6... leg, 7... ball channel, 8... ball , 9... Impeller chamber side wall, 10... Pump, 11
... Eyepiece portion, 20 ... Cover, 21 ... Radial rib, 22 ... Spiral ring, 21' ... Convex taper portion.

Claims (1)

[Scope of utility model registration request] In a pump for transporting solids, in which a cover 20 configured to allow fluid to freely pass through the impeller 1 is attached in front of the impeller 1, the cover 20 has several radial ribs 21, . . . a spiral ring 22 attached to the top;
A solid material conveying pump characterized in that a portion of the rib 21 corresponding to the center portion 11 of the impeller projects toward the suction port side to form a convex tapered portion 21'.