JP3233692U - Mortar sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mortar spraying machine capable of shortening a working time from kneading a spraying material to spraying and reducing operator fatigue. An upper tank 10 for kneading a spray material obtained by adding water to cement is provided. A lower tank 20 is provided which stores the spray material and conveys it to the spray hose with compressed air. The inner surface of the lower half of the upper tank is formed to be hemispherical. A drop opening 11 leading to the lower tank is formed at the lower end of the upper tank. The spray material is configured to slide down from the upper tank to the lower tank under its own weight. [Selection diagram] Fig. 1

Description

The present invention relates to a mortar sprayer that uses compressed air to spray concrete, mortar, or the like onto a slope or the like.

In the construction to harden the slope by spraying mortar or concrete on the slope consisting of cut soil or embankment, the worker kneads the spray material such as mortar and then operates the spray hose to use the spray material. It will be the work of spraying on the surface.

In a conventional mortar sprayer, in order to knead this spray material, an upper tank that kneads the spray material by adding water to cement or sand and a lower tank that sends the kneaded spray material to the spray hose with compressed air. And are used.

The conventional upper tank has a horizontally long tank shape, and the lower tank also has a horizontally long tank shape almost the same as the upper tank (Patent Document 1).

Then, in the mortar spraying work, (a) sand is weighed with a sand measuring instrument, (b) cement is put into the weighed sand, and (c) sand and cement are put into the upper tank together with water. (D) Next, after kneading water, sand, and cement in the upper tank, (e) drop the kneaded material from the upper tank to the lower tank. (F) Finally, the work of spraying mortar from the spray nozzle.

Such work is regarded as one cycle, and this cycle is repeated dozens of times a day at the work site. Therefore, in the work of spraying mortar, concrete, or the like to harden the slope, it is desired to shorten the work time of one cycle from kneading the spray material to spraying from the spray nozzle as much as possible.

JP-A-2010-248820

In the mortar sprayer described in Patent Document 1, since the upper tank has a horizontally long tank shape, a material formed in a substantially central portion of the upper tank when the spray material of the upper tank is transferred to the lower tank. It was necessary to move the material to the drop-off point and drop it.

Therefore, it takes time to transfer the spray material from the upper tank to the lower tank, and this transfer time is a factor that prolongs the work time of one cycle from kneading the spray material and spraying from the spray nozzle.

Moreover, the upper tank has a horizontally long tank shape, and a separate configuration for peeling off the spraying material adhering to the inside of both ends of the longitudinal portion is required. However, there was also the inconvenience of time and cost.

Therefore, the present invention makes it possible to shorten the work time from kneading the sprayed material to spraying in the mortar spraying machine, reduce the fatigue of the operator, and handle more work sites. The purpose is to provide a mortar sprayer that can be used.

In order to achieve the above object, the first means in the present invention is an upper tank 10 for kneading a spray material obtained by adding water to cement or sand, and a hose for storing the kneaded spray material and spraying with compressed air. In a mortar spraying machine provided with a lower tank 20 for transporting to 30 and spraying a spraying material on a slope made of cut or embankment, the upper tank 10 has a hemispherical inner surface of the lower half of the upper tank 10. Is formed, and a drop port 11 leading to the lower tank 20 is formed at the lower end of the upper tank 10, and the spray material kneaded in the upper tank 10 slides down the inside of the upper tank by its own weight at the drop port 11. I have done it.

In the second means, a charging port 12 is formed at the upper end of the upper tank 10, and the spray material charged from the charging port 12 is kneaded directly above the dropping port 11.

In the third means, the lower tank 20 has a horizontally long tank shape, and the drop opening 11 is formed close to one side of both longitudinal ends of the lower tank 20.

As described in claim 1 of the present invention, an upper tank 10 having a hemispherical inner surface of the lower half of the upper tank 10 is formed, and a drop opening 11 leading to the lower tank 20 is formed at the lower end of the upper tank 10. Since the spray material kneaded in the upper tank 10 is configured to slide down the inside of the upper tank by its own weight at the drop port 11, the upper tank 10 is a spherical upper tank as compared with the cylindrical sprayer. The falling speed of the spray material falling from the 10 to the lower tank 20 through the drop opening 11 can be shortened to about half the time.

As a result, it is possible to shorten the work time from kneading the sprayed material to spraying, and by shortening the work time, it is possible to reduce the fatigue of the worker and to handle more work sites. Become.

As in claim 2, since the injection port 12 is formed at the upper end of the upper tank 10 and the spray material input from the input port 12 is kneaded directly above the drop port 11, the spray material is kneaded. Can be smoothly charged into the upper tank 10 and discharged from the drop port 11. Moreover, unlike the conventional cylindrical upper tank 10, the spray material does not adhere to the inside of both ends of the longitudinal portion. There is no need for the time and cost of peeling off the spray material.

As in claim 3, the lower tank 20 has a horizontally long tank shape, and the drop port 11 is formed close to one side of both longitudinal ends of the lower tank 20, so that the lower tank 20 falls into the lower tank 20. The process of sending the sprayed material with compressed air can also be performed efficiently.

In this way, according to the present invention, it is possible to shorten the work time from kneading the material to spraying, reduce the fatigue of the worker, and handle more work sites. Achieved the original purpose.

It is a front view which shows one Example of this invention. It is a side view which shows one Example of this invention. It is sectional drawing which shows the state which the spray material is kneaded in the upper tank. It is sectional drawing which shows the state which transfers the spray material from the upper tank to the lower tank. It is the schematic which shows the work until the spraying material by the present invention is sprayed.

The present invention relates to an improvement of a spraying machine used when spraying mortar, concrete or the like on a slope composed of cut soil or embankment to harden the slope.

The basic configuration of the present invention is a sprayer including an upper tank 10 and a lower tank 20 (see FIG. 1). The inner surface of the lower half of the upper tank 10 is hemispherical, and the lower tank 20 has a horizontally long tank shape.

In the upper tank 10, the spray material obtained by adding water to the cement charged from the charging port 12 is kneaded by the upper blade 13 (see FIG. 3). Then, the kneaded spray material is transferred to the lower tank 20 (see FIG. 4). At this time, the spray material kneaded in the upper tank 10 is configured to slide down the inside of the upper tank by its own weight.

That is, the inner surface of the lower half of the upper tank 10 is formed in a hemispherical shape, and the drop opening 11 leading to the lower tank 20 is formed at the lower end of the upper tank 10 (see FIG. 2). Then, the spray material kneaded in the upper tank 10 (see FIG. 3) falls along the hemispherical inner surface of the upper tank 10 by its own weight, and opens the lid 14 covering the drop opening 11. And, it is configured to move from the drop port 11 to the lower tank 20 (see FIG. 4).

The lower tank 20 transports the spray material transferred from the upper tank 10 to the spray hose 30 with compressed air while being transferred by the lower blades 21 (see FIGS. 1 and 5). The upper blade 13 and the lower blade 21 are linked by a chain 22 and are rotated by a motor 40 (see FIG. 1).

The main configuration when using the sprayer of the present invention includes two belt conveyors 50 that carry sand to the sprayer, a water tank 80 that supplies water to the upper tank 10 of the sprayer, and a submersible pump 81 (FIG. 5). reference). Further, a sand measuring instrument 60 for measuring sand and a cement throwing machine 70 for adding cement to sand are used.

Then, sand is stored in a hopper (not shown) installed near the work site, the sand is weighed by the sand measuring instrument 60, and when the sand is carried by the belt conveyor 50, cement is added from the cement loading machine 70 and the spraying machine is used. (See FIG. 5). Further, water is added to the upper tank 10 and kneaded to produce a spray material in the upper tank 10 (see FIG. 3). Then, when the drop port 11 of the upper tank 10 is opened, the manufactured spray material falls into the lower tank 20 (see FIG. 4). Compressed air is sent to the lower tank 20 and the spray material is conveyed to the spray hose 30. The worker operates the spray hose 30 to spray the spray material on the slope or the like (see FIG. 5).

Therefore, when the sprayed material is kneaded in the upper tank 10 and transported to the lower tank 20, if the sprayed material can be transferred by dropping due to its own weight, the time of the entire work can be shortened.

The present invention is not limited to the illustrated configuration, and various configurations such as the upper tank 10 and the lower tank 20 can be freely redesigned without changing the gist of the present invention.

10 Upper tank 11 Drop port 12 Input port 13 Upper blade 14 Lid 20 Lower tank 21 Lower blade 22 Chain 30 Spray hose 40 Motor 50 Belt conveyor 60 Sand scale 70 Cement input machine 80 Water tank 81 Submersible pump

Claims (3)

It has an upper tank that kneads the spray material with water added to cement and a lower tank that stores the kneaded spray material and transports it to the spray hose with compressed air. In a mortar spraying machine that sprays and fixes a spray material to the upper tank, an upper tank is formed in which the inner surface of the lower half of the upper tank is hemispherical, and a drop opening leading to the lower tank is formed at the lower end of the upper tank. In addition, the mortar spraying machine is characterized in that the spraying material kneaded in the upper tank is configured to slide down the inside of the upper tank by its own weight. The mortar spraying machine according to claim 1, wherein a charging port is formed at the upper end of the upper tank, and the spraying material charged from the charging port is kneaded directly above the dropping port. The mortar sprayer according to claim 1, wherein the lower tank has a horizontally long tank shape, and the drop port is formed close to one side of both longitudinal ends of the lower tank.

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