KR-20260067401-A - AIR INJECTOR FOR LAUNDRY

Abstract

The present invention relates to an air injector for a dry cleaner that expands the range of use and improves convenience of use by allowing liquid to be sprayed in addition to gas, provides a hinge portion of the operating lever so as to be far from the spray nozzle so as to be operated easily with relatively little force, and forms most parts of synthetic resin material so as to minimize failures caused by rust and foreign substances. The air injector comprises a main body (10) made of synthetic resin material, a spray nozzle (20) made of synthetic resin material installed at the tip of the main body (10), an air supply operating unit (30) installed on the main body (10) to spray high-pressure air through the spray nozzle (20), a liquid supply operating unit (40) installed on the main body (10) to spray high-pressure liquid through the spray nozzle (20), and an operating lever (50) installed on the main body (10) to operate the air supply operating unit (30) and the liquid supply operating unit (40).

Inventors

• 백호기
• 윤영미

Assignees

• 백호기
• 윤영미

Dates

Publication Date

20260513

Application Date

20241104

Claims (3)

1. A main body (10) made of synthetic resin material that is formed long enough to be held by hand, with an air supply pipe (11) for supplying air connected to the end and a liquid supply pipe (12) for supplying liquid connected to the end; A spray nozzle (20) made of synthetic resin material that is mounted protrudingly at the tip of the main body (10), is formed in a tubular shape that narrows toward the outside, and sprays air and liquid; An air supply operating unit (30) installed inside the main body (10) and controlling the supply of air between the air supply pipe (11) and the injection nozzle (20) to preferentially supply air; A liquid supply operating unit (40) installed on one side of the air supply operating unit (30) inside the main body (10) and controlling the supply of liquid between the liquid supply pipe (12) and the spray nozzle (20) so as to supply liquid while air is supplied; An operating lever (50) having one end hinge-connected to the rear end of the main body (10) so as to be rotatable, extending to the front end of the main body (10), and capable of manually operating the air supply operating part (30) and the liquid supply operating part (40); A dry cleaner air injector characterized by including
2. In paragraph 1, The above main body (10) is, A first insertion hole (13) formed from the upper surface to the lower side of the main body (10), and It further includes a first expansion hole (14) formed by penetrating the lower surface of the main body (10) at the bottom of the first insertion hole (13) and having a wider inner diameter than the first insertion hole (13). The above air supply operating unit (30) is, A first rod (31) that is inserted into the first insertion hole (13) so as to be slidable up and down and is provided such that its upper end is exposed to the upper surface of the main body (10) so as to be in contact with the lower surface of the operating lever (50), and A first disc (32) formed at the bottom of the first rod (31) and positioned so as to be slidable vertically on the upper inner side of the first expansion hole (14), and A first O-ring (33) installed at the upper inner surface of the first expansion hole (14) and in close contact with the upper surface of the first disc (32) to close the space between the first insertion hole (13) and the first expansion hole (14), and A first bottom bolt (34) screw-coupled to the bottom of the first expansion hole (14), and A first spring (35) positioned inside the first expansion hole (14) between the first disc (32) and the first lower bolt (34) to press the first disc (32) upward, and An air inlet hole (36) formed between the first expansion hole (14) in the main body (10) so as to be in communication with the air supply pipe (11) at the lower part of the first disc (32), and An air injector for a laundry, characterized by including an air discharge hole (37) formed above the first O-ring (33) to communicate between the first insertion hole (13) and the inside of the injection nozzle (20).
3. In paragraph 2, The above main body (10) is, A second insertion hole (15) formed downward from the upper surface of the main body (10) on one side of the first insertion hole (13), and A second expansion hole (16) formed by penetrating the lower surface of the main body (10) at the bottom of the second insertion hole (15) and having a wider inner diameter than the second insertion hole (15), and An installation groove (17) formed at the front end of the main body (10) at the rear of the injection nozzle (20), and An installation member (18) having its front end screw-coupled to the inner circumference of the installation groove (17) and the spray nozzle (20) screw-coupled to the portion protruding to the rear end, and A plurality of communication holes (18a) formed horizontally along the circumference of the installation member (18) so as to be in communication with the air supply operating part (30) and the interior of the injection nozzle (20), and A boosting injection pipe (18b) that is provided to protrude horizontally from the center of the rear surface of the above-mentioned installation member (18), has an outer end formed to be pointed, and is formed in a tubular shape to narrow the opening of the injection nozzle (20) and increase the injection pressure, and A hollow portion (18c) formed inside the installation member (18) so as to be in communication with the above-mentioned booster injection pipe (18b), and It further includes a central horizontal hole (18d) formed to penetrate horizontally between the front center of the above-mentioned installation member (18) and the hollow portion (18c), and The above liquid supply operating unit (40) is, A second rod (41) that is inserted into the second insertion hole (15) so as to be slidable up and down, and is provided such that its upper end is exposed on the upper surface of the main body (10) so as to be in contact with the lower surface of the operating lever (50), and protrudes shorter than the first rod (31); A second disc (42) formed at the bottom of the second rod (41) and positioned so as to be slidable vertically on the upper inner side of the second expansion hole (16), and A second O-ring (43) installed at the upper inner side of the second expansion hole (16) and closing the space between the second insertion hole (15) and the second expansion hole (16), and A second bottom bolt (44) screw-coupled to the bottom of the second expansion hole (16), and A second spring (45) positioned inside the second expansion hole (16) between the second disc (42) and the second lower bolt (44) to press the second disc (42) upward, and An inclined rod (46) formed at an angle around the circumference of the second rod (41) on the upper part of the second disc (42), and A liquid discharge hole (47) formed to be horizontally connected from the center of the main body (10) to the central horizontal hole (18d) on one side of the inclined rod (46), and A liquid inlet hole (48) formed to be in communication with the liquid supply pipe (12) and extending from the main body (10) to the tip of the liquid discharge hole (47), and An operating ball (49) provided at the tip of the liquid discharge hole (47) so as to be in close contact with one side of the inclined rod (46), and An operating rod (41a) having its front end slidably provided inside the liquid discharge hole (47) so as to be in close contact with the other side of the operating ball (49), and its rear end passing through the central horizontal hole (18d) and extending into the interior of the hollow part (18c), and An opening/closing plate (42a) that is vertically attached to the rear end of the above operating rod (41a) and is in close contact with the above central horizontal hole (18d), and A stopper (43a) formed around the operating rod (41a) inside the liquid discharge hole (47), and A third spring (44a) provided between the above-mentioned stopper (43a) and the front of the above-mentioned installation member (18) to press and close the above-mentioned operating rod (41a) and operating ball (49) to the outer surface of the above-mentioned inclined rod (46), A dry cleaner air injector characterized by including

Description

Air Injector for Laundry The present invention relates to an air injector for a dry cleaner, and more specifically, to an air injector for a dry cleaner that can spray liquid in addition to air to expand the range of use and improve convenience of use, and has a hinge portion of the operating lever positioned away from the spray nozzle so that it can be operated simply with relatively little force, and has most parts formed from synthetic resin material so that failures caused by rust and foreign substances are minimized. Generally, air injectors are widely used in dry cleaners as devices that spray air to remove stains, such as ink or oil, from laundry. Such an air injector is structured so that high-pressure air is injected through the injection nozzle when the user presses the operating lever. However, the conventional technology described above had the following problems. Conventional air injectors simply spray air, which limits their range of use, and require water or cleaning fluid to be sprayed using a separate device, resulting in significantly low convenience of use. In addition, conventional air injectors are typically used in a position located below the injection nozzle, and the hinge of the operating lever is positioned close to the injection nozzle of the main body, which requires a relatively large amount of force when the user presses the operating lever with their finger, resulting in significantly reduced convenience in use and operation. In addition, conventional air injectors had a problem in that most of their parts were made of metal, causing rust and foreign substances to accumulate inside, making elastic recovery operation difficult and leading to frequent failures. FIG. 1 is a schematic perspective view of an air injector according to the present invention. FIG. 2 is a schematic cross-sectional view of an air injector according to the present invention, Fig. 3 is an enlarged view of the main part of Fig. 2, FIG. 4 is a schematic cross-sectional view of an air injector according to the present invention, Fig. 5 is an enlarged view of the main part of Fig. 4, FIG. 6 is a schematic cross-sectional view showing the operating state of an air injector according to the present invention, FIG. 7 is a schematic enlarged longitudinal section showing the operating state of the air supply operating part of an air injector according to the present invention. FIG. 8 is a schematic enlarged longitudinal section showing the operating state of the liquid supply operating part of an air injector according to the present invention. Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings. However, it should be understood that the present invention may be implemented in a number of different forms and is not limited to the described embodiments. FIGS. 1 to 8 are schematic drawings of an air injector according to the present invention. As illustrated herein, the air injector for a laundry according to the present invention comprises a main body (10) made of synthetic resin material, a spray nozzle (20) made of synthetic resin material installed at the tip of the main body (10), an air supply operating unit (30) installed on the main body (10) to spray high-pressure air through the spray nozzle (20), a liquid supply operating unit (40) installed on the main body (10) to spray high-pressure liquid through the spray nozzle (20), and an operating lever (50) installed on the main body (10) to operate the air supply operating unit (30) and the liquid supply operating unit (40). The above main body (10) is formed long enough to be held by hand and made of synthetic resin material, with an air supply pipe (11) for supplying air connected to the end and a liquid supply pipe (12) for supplying liquid connected to the end. It serves to provide a place for installing various parts, including the spray nozzle (20), while allowing a user to hold it by hand and operate the operating lever (50). Since the above main body (10) is formed of synthetic resin material, the occurrence of rust and foreign substances is minimized, thereby preventing or minimizing malfunctions caused by rust and foreign substances. The air supply pipe (11) serves to provide a passage for supplying compressed air from the outside into the interior of the main body (10), and the liquid supply pipe (12) serves to provide a passage for supplying liquid from the outside into the interior of the main body (10). Here, the liquid includes water or cleaning liquid. The above-described main body (10) further includes a first insertion hole (13) formed from the upper surface to the lower surface, and a first expansion hole (14) formed by penetrating the lower surface of the main body (10) from the lower end of the first insertion hole (13) and having a wider inner diameter than the first insertion hole (13). The first insertion hole (13) and the first expansion hole (14) serve to provide