초록 ▼

A spraying device includes a control handle, a first hollow barrel, a second hollow barrel, a driving unit, a spraying tube, and a liquid ejection tube. With the driving unit that is driven by high pressure air to rotate received inside the second hollow barrel, when the control handle is operated t

A spraying device includes a control handle, a first hollow barrel, a second hollow barrel, a driving unit, a spraying tube, and a liquid ejection tube. With the driving unit that is driven by high pressure air to rotate received inside the second hollow barrel, when the control handle is operated to supply high pressure air to drive the driving unit to rotate in high speed, the spraying tube is caused to rotate with a high speed, making high pressure rotating air ejected from the spraying tube inducing repeated and rotating impacts on a surface to be cleaned to thereby improve the effect of dust removal. Further, the liquid ejection tube is located within the spraying tube and ejects a stream of water (or cleaning agent), which is mixed with the high pressure air to generate a high speed rotating impact to also realize surface rinsing of an object.

대표청구항 ▼

1. A spraying device, which comprises a sprayer comprising: a control handle, which forms one or a plurality of air inlet openings and one or a plurality of air outlet openings;a first hollow barrel, which has an end forming a first coupling end connectable with the air outlet opening of the control

1. A spraying device, which comprises a sprayer comprising: a control handle, which forms one or a plurality of air inlet openings and one or a plurality of air outlet openings;a first hollow barrel, which has an end forming a first coupling end connectable with the air outlet opening of the control handle and another end forming a second coupling end, the first hollow barrel receiving and retaining therein a block, which forms an internal passage and is located between the first coupling end and the second coupling end, the block having an outside surface forming one or a plurality of air passageways communicating between the first coupling end and the second coupling end, the internal passage of the block having an end forming a first end port that faces outward of the first hollow barrel and another end of the passage opposing the second coupling end and forming a second end port, a coupling portion extending outward from an opening of the second coupling end and having a surface forming one or a plurality of grooves in communication with the second coupling end;a second hollow barrel, which has an end that is an open end and an opposite end forming a coupling end connectable to the coupling portion of the first hollow barrel, the second hollow barrel forming therein an accommodation chamber and also forming a first channel in an upper wall of the accommodation chamber and a second channel in a lower wall of the accommodation chamber;a driving unit, which is received in the accommodation chamber of the second hollow barrel and has two ends which extend outward to form a shaft, a bore formed in the shaft and extending through the driving unit, a sleeve being fit outside the driving unit and forming first air apertures corresponding in position to the first channel of the second hollow barrel and second air apertures corresponding in position to the second channel of the second hollow barrel, positioning seats being respectively fit over opposite end portions of the shaft and tightly positioned against the sleeve, each of the positioning seats receiving and retaining therein a bearing through which the shaft extends and is thus supported;a spraying tube, which is arranged inside the second hollow barrel and has an end forming a fitting portion connectable with the shaft of the driving unit; anda liquid ejection tube, which has an end extending through and received in the bore of the driving unit and the spraying tube and an opposite end forming a retention seat connectable to the second end port inside the first hollow barrel. 2. The spraying device according to claim 1, wherein the first end port and an opening of the first coupling end are arranged to face different directions. 3. The spraying device according to claim 1, wherein the coupling portion of the first hollow barrel forms one or a plurality of bolt holes. 4. The spraying device according to claim 1, wherein the first hollow barrel forms on an outside surface thereof one or a plurality of hooking rings. 5. The spraying device according to claim 1, wherein the coupling end of the second hollow barrel forms one or a plurality of fastening holes. 6. The spraying device according to claim 1, wherein the driving unit forms one or a plurality of slots, which respectively and movably receive therein blades. 7. The spraying device according to claim 1, wherein the coupling portion of the first hollow barrel and the coupling end of the second hollow barrel receive one or a plurality of gaskets interposed therebetween. 8. The spraying device according to claim 1, wherein the first end port of the first hollow barrel is connectable with a liquid storage container.