Abstract
A cleaning device including a covering hood having a lower surface facing a surface to be cleaned and an inlet on an upper surface thereof, through which contaminants are sucked; an air knife provided on a circumference of the covering hood and having an outlet for spraying high pressure air to the surface to be cleaned; a sweeper installed inside the covering hood and rotated by a driving motor to guide foreign objects swept away from the surface to be cleaned and contaminants floated by the high pressure air injection of the air knife to the inlet; a rotary member including a shaft passing through a circumferential surface of the covering hood and the air knife, and a rotary knob coupled to one end of the shaft to rotate the air knife to adjust an air spray angle.
Claims
1. A cleaning device comprising: a covering hood having a lower surface facing a surface to be cleaned and an inlet on an upper surface thereof, through which contaminants are sucked; an air knife provided on a circumference of the covering hood and having an outlet for spraying high pressure air to the surface to be cleaned; a sweeper installed inside the covering hood and configured to be rotated by a driving motor to guide foreign objects swept away from the surface to be cleaned and contaminants floated by the high pressure air injection of the air knife to the inlet; a rotary member including a shaft passing through a circumferential surface of the covering hood and the air knife, and a rotary knob coupled to one end of the shaft to manually rotate the air knife to adjust an air spray angle; and a protective plate mounted on a surface of the air knife facing the sweeper to prevent the contaminants from impacting the air knife.
2. The cleaning device according to claim 1, further comprising a buffer member, wherein the buffer member comprises a buffer socket vertically penetratingly coupled to a buffer pad extending on the outer circumference of the covering hood and having a lower surface opened; a buffer pin inserted into a lower surface of the buffer socket; a buffer spring having opposite ends coupled respectively to an outer circumferential surface of the buffer socket and to an outer circumferential surface of the buffer pin; and a buffer ball coupled to a lower end of the buffer pin.
3. The cleaning device according to claim 1, further comprising a support member, wherein the support member comprises a support shaft hinged to an axis of the sweeper and extending in the vertical direction; and a support pin coupled to the back of the support shaft and fitted to the outer circumferential surface of the covering hood at a lower surface thereof.
4. A cleaning device comprising: a covering hood having a lower surface opened facing a surface to be cleaned and an inlet on an upper surface thereof, through which contaminants are sucked; a first sweeper installed at one side of an inside of the covering hood and configured to be rotated by a first driving motor to guide foreign objects swept from the surface to be cleaned to the inlet; a second sweeper installed on an other side of the covering hood and configured to be rotated by a second driving motor in a direction different from that of the first sweeper to guide foreign objects swept from the surface to be cleaned to the inlet together with the first sweeper; an air knife installed on a circumferential surface of the covering hood and having an outlet for spraying high pressure air to the surface to be cleaned; a rotary member including a shaft passing through a circumferential surface of the covering hood and an air knife, and a rotary knob coupled to one end of the shaft to manually rotate the air knife to adjust an air spray angle; and a protective plate provided on a surface of the air knife, facing the first sweeper and the second sweeper, so that the contaminants are prevented from impacting against the air knife.
5. The cleaning device according to claim 4, further comprising a buffer member, wherein the buffer member includes a buffer socket vertically penetratingly coupled to a buffer pad extending on the outer circumference of the covering hood and having a lower surface opened; a buffer pin inserted into a lower surface of the buffer socket; a buffer spring having opposite ends coupled respectively to an outer circumferential surface of the buffer socket and to an outer circumferential surface of the buffer pin; and a buffer ball coupled to a lower end of the buffer pin.
6. The cleaning device according to claim 4, further comprising a support member, wherein the support member includes a pair of support shafts which are extended in the vertical direction and hinged to axes of the first and the second sweepers; and a pair of support pins which are respectively coupled to the rear of the pair of support shafts and fitted to the outer circumferential surface of the covering hood.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 is a perspective view showing a cleaning device having a hood equipped with a sweeper and an air knife according to Embodiment 1 of the present invention.
(2) FIG. 2 is a front view showing a cleaning device having a hood equipped with a sweeper and an air knife according to Embodiment 1 of the present invention.
(3) FIG. 3 is a front view showing a cleaning device having a hood equipped with a sweeper and an air knife according to Embodiment 2 of the present invention.
(4) FIG. 4 is a front view showing a cleaning device having a hood equipped with a sweeper and an air knife according to Embodiment 2 of the present invention.
DESCRIPTION OF SYMBOLS
(5) 1000: A cleaning device having a hood with a sweeper and an air knife according to the present invention 100: covering hood 110: inlet 200: air knife 210: outlet 300: sweeper 300-1: a first sweeper 300-2: a second sweeper 400: rotary member 410: shaft 420: rotary knob 500: protective plate 600: buffer member 610: buffer socket 620: buffer pin 630: buffer spring 640: buffer ball 700: support member 710: support shaft 720: support pin 810: intake inverter 820: pressure gauge 830: supply inverter 840: flowmeter
DETAILED DESCRIPTION OF THE EMBODIMENTS
(6) Hereinafter, the technical idea of the present invention will be described more specifically with reference to the accompanying drawings. The drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.
Embodiment 1
(7) FIG. 1 is a perspective view showing a cleaning device having a hood with a sweeper and an air knife according to the embodiment 1 of the present invention. FIG. 2 is a front view showing a cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 1 of the present invention. As illustrated in FIGS. 1 and 2, a cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 1 of the present invention includes a covering hood (100), an air knife (200), and a sweeper (300). The covering hood (100), the main body of the present invention, may be formed in a hollow tube structure with a lower surface opened to face the surface to be cleaned, and has an inlet (110) through which contaminants are sucked. At this time, an intake inverter (810) for supplying a negative pressure to the inlet (110) and a pressure gauge (820) for measuring a negative pressure supplied to the inlet (110) from the intake inverter (810) may be further installed, and the pressure gauge (820) can be used to grasp the negative pressure of the inlet (110) and constantly adjust the air pressure supplied to the inlet (110) by the intake inverter (810). The air knife (200) is installed on the circumferential surface of the covering hood (100) and provided with an outlet (210), on a lower surface, for spraying high pressure air to the surface to be cleaned to float foreign objects on the surface. At this time, the outlet (210) may be formed in a horizontally long hole structure, but the present invention is not limited thereto. At this time, the air knife (200) may be further provided with a supply inverter (830) for supplying high-pressure air with its flow rate regulated and a flowmeter (840) for measuring the flow rate supplied to the air knife (200) from the supply inverter (830). The sweeper (300) is installed inside the covering hood (100) and rotated to guide foreign objects swept away from the surface to be cleaned and contaminants floated by high-pressure air injected by the air knife (200) to the inlet (110). Since the rotation of the sweeper (300) is performed by a normal driving motor (not shown), which is a well-known technique, detailed description thereof will be omitted. Conventional contaminant suction devices have had a problem that, depending on the surface roughness, contaminants could not be swept by a brush but remained on the surface to be cleaned, and particulate and liquid materials contained in the contaminants of the surface were not sucked but remained on the surface to be cleaned. A cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 1 of the present invention, however, can remove contaminants of the surface to be cleaned irrespective of the surface roughness and can easily remove particulate and liquid materials contained in the contaminants of the surface to be cleaned, by using an air knife (200) to inject high-pressure air to the surface to be cleaned and allowing sweepers (300) to guide the contaminants into the inlet (110) while the contaminants are floating. In addition, the cleaning device having a hood with a sweeper and an air knife (1000) may further include a rotary member (400), a protective plate (500), a buffer member (600), and a support member (700). The rotary member (400), which rotates the air knife (200) to adjust the position of the air knife (200) that injects high-pressure air, includes a shaft (410) passing through the circumference of the covering hood (100) and the air knife (200) and a rotary knob (420) coupled to one end of the shaft (410) to manually rotate the air knife (200) to adjust an air spray angle. The protective plate (500) is installed on the air knife (200) to face the sweeper (300) so that contaminants floating on the surface to be cleaned are prevented from impacting against the air knife (200). At this time, the protective plate (500) is installed at a position where the protective plate (500) is in contact with the rotation radius of the sweeper (300), so that the contaminants sticking to a surface facing the sweeper (300) are swept away by the sweeper (300). The buffer member (600), which is to control the gap between the covering hood (100) and the surface to be cleaned, includes: a buffer socket (610) vertically and penetratingly coupled to a buffer pad extending on an outer circumferential surface of the covering hood (100) and having a lower surface opened; a buffer pin (620) inserted into the lower surface of the buffer socket 610); a buffer spring (630) having both ends connected to the outer circumferential surface of the buffer socket (610) and the outer circumferential surface of the buffer pin (620); and a buffer ball (640) coupled to the lower end of the buffer pin (620). The buffer ball (640), which is to adjust the elasticity of the buffer spring (630), adjusts the gap between the covering hood (100) and the surface to be cleaned so that the friction between the covering hood (100) and the surface to be cleaned can be minimized when the covering hood (100) is moving. The support member (700) includes: a support shaft (710) formed to be long in the vertical direction and hinged to the axis of the sweeper (300) that is simply fitted to the covering hood (100) for an easy replacement of the sweeper (300); and a support pin (720) coupled to the back of the support shaft (710) and fitted to an outer circumferential surface of the covering hood (100) at a lower surface thereof. Accordingly, it is possible to easily replace the sweeper (300) by simply releasing the fitting between the support member (700) and the covering hood (100).
Embodiment 2
(8) FIG. 3 is a front view showing a cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 2 of the present invention, and FIG. 4 is a front view showing a cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 2 of the present invention. As shown in FIGS. 3 and 4, a cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 2 of the present invention includes a covering hood (100), a first sweeper (300-1), and a second sweeper (300-2). The covering hood (100), the main body of the present invention, may be formed in a hollow tube structure with a lower surface opened to face the surface to be cleaned, and has an inlet (110) through which contaminants are sucked. At this time, an intake inverter (810) for supplying a negative pressure to the inlet (110) and a pressure gauge (820) for measuring a negative pressure supplied to the inlet (110) from the intake inverter (810) may be further installed, and the pressure gauge (820) can be used to determine the negative pressure of the inlet (110) and to constantly adjust the pneumatic pressure to be supplied to the inlet (110) by the intake inverter (810). The first sweeper (300-1) is installed on the inner side of the covering hood (100) and rotated to guide foreign objects swept away from the surface to be cleaned to the inlet (110). Since the rotation of the first sweeper (300-1) is performed by a normal driving motor (not shown), which is a well-known technique, detailed description thereof will be omitted. The second sweeper (300-2) is installed on the other side of the covering hood (100) and rotated in a direction different from that of the first sweeper (300-1) to guide foreign objects swept from the surface to be cleaned to the inlet (110) together with the first sweeper (300-1). Since the rotation of the first sweeper (300-1) is performed by a normal driving motor (not shown), which is a well-known technique, detailed description thereof will be omitted. Conventional contaminant suction devices have had a problem that, depending on the surface roughness, contaminants could not be swept by a brush but remained on the surface to be cleaned, and particulate and liquid materials contained in the contaminants of the surface were not sucked but remained on the surface to be cleaned. A cleaning device having a hood with a sweeper and an air knife (1000) according to the embodiment 2 of the present invention, however, can remove contaminants of the surface to be cleaned irrespective of the surface roughness and can easily remove particulate and liquid materials contained in the contaminants of the surface to be cleaned because a first sweeper (300-1) and a second sweeper (300-2), rotating in different directions, simultaneously sweep the surface to be cleaned and guide the contaminants to the inlet (1000). In addition, the cleaning device having a hood with a sweeper and an air knife (1000) may further include an air knife (200), a rotary member (400), a protective plate (500), a buffer member (600), and a support member (700). The air knife (200) is installed on the circumferential surface of the covering hood (100) and has an outlet (210) for spraying high pressure air to the surface to be cleaned to float foreign objects on the surface. At this time, the outlet (210) may be formed in a horizontally long hole structure, but the present invention is not limited thereto. At this time, the air knife (200) may be further provided with a supply inverter (830) for supplying high-pressure air with its flow rate regulated and a flowmeter (840) for measuring the flow rate supplied to the air knife (200) from the supply inverter (830). The rotary member (400), which rotates the air knife (200) to adjust the position of the air knife (200) that injects high-pressure air, includes a shaft (410) passing through the circumference of the covering hood (100) and the air knife (200) and a rotary knob (420) coupled to one end of the shaft (410) to manually rotate the air knife (200) to adjust an air spray angle. The protective plate (500) is installed on the air knife (200) to face the first sweeper (300-1) and the second sweeper (300-2) so that contaminants floating on the surface to be cleaned are prevented from impacting against the air knife (200). At this time, the protective plate (500) is installed at a position where the protective plate (500) is in contact with the rotation radius of the first sweeper (300-1) and the second sweeper (300-2), so that the contaminants sticking to a surface facing the first sweeper (300-1) and the second sweeper (300-2) are swept away by the rotation of the first sweeper (300-1) and the second sweeper (300-2). The buffer member (600), which is to control the gap between the covering hood (100) and the surface to be cleaned, includes: a buffer socket (610) vertically and penetratingly coupled to a buffer pad extending on an outer circumferential surface of the covering hood (100) and having a lower surface opened; a buffer pin (620) inserted into the lower surface of the buffer socket 610); a buffer spring (630) having both ends connected to the outer circumferential surface of the buffer socket (610) and the outer circumferential surface of the buffer pin (620); and a buffer ball (640) coupled to the lower end of the buffer pin (620). The buffer ball (640), which is to adjust the elasticity of the buffer spring (630), adjusts the gap between the covering hood (100) and the surface to be cleaned so that the friction between the covering hood (100) and the surface to be cleaned can be minimized when the covering hood (100) is moving. The support member (700) includes: a support shaft (710) formed to be long in the vertical direction and hinged to the axis of the first sweeper (300-1) and the second sweeper (300-2) that are simply fitted to the covering hood (100) for an easy replacement of the first sweeper (300-1) and the second sweeper (300-2); and a support pin (720) coupled to the back of the support shaft (710) and fitted to an outer circumferential surface of the covering hood (100) at a lower surface thereof. Accordingly, it is possible to easily replace the first sweeper (300-1) and the second sweeper (300-2) by simply releasing the fitting between the support member (700) and the covering hood (100). It is to be understood that the present invention is not limited to the above-described embodiments and that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined in the appended claims.
