TWI771108B - brush - Google Patents

Abstract

A brush tool, comprising: a roller with a plurality of bundles of bristles, two ends of the roller are respectively connected to an inner space of the roller; an active cover and a driven cover are respectively combined with the two end faces of the roller; and, a One end of the actuator is fixed with a straight pipe, and the other end is extended with a transmission shaft. The straight pipe and the driven cover rotate mutually. The transmission shaft is connected with the active cover to rotate together, and supports the actuator to be placed in the inner space of the drum. In this way, the brush is provided with an actuator inside, so as to avoid the disadvantages such as corrosion, short circuit or electric leakage of the actuator caused by the external factors of humidity.

Description

brush

The present invention relates to cleaning tools, in particular to a brush tool with an actuator inside.

Known cleaning appliances are used for the cleaning of solar panels. Typically, the cleaning appliance has a frame that is equipped with a roller brush. A plurality of bristles are implanted on the surface of the brush and contact the surface of the solar panel, and the support frame stops on the solar panel. The frame is installed with a motor and a transmission group, the transmission group outputs the torque of the motor to the brush, and can drive the brush to rotate relative to the frame. The bristles sweep the surface of the solar panel and have a cleaning effect, so that the frame and the transmission group are displaced on the surface of the solar panel.

Most of the transmission groups are some mechanical structures, such as gear groups or belt groups. Therefore, the volume of the transmission group is relatively large, which relatively increases the weight of the cleaning appliance, which is unfavorable for handling and storage.

In addition, the environment for cleaning solar panels belongs to flowing waters. When the motor is exposed to water, it is not only susceptible to moisture or rust, but also has the possibility of short circuit or leakage.

In view of this, the inventor of the present application provides a brush tool with an internal actuator, which effectively solves the disadvantages of the prior art, such as moisture, corrosion, short circuit or leakage.

In order to achieve the above purpose, the brush tool of the present invention includes: a drum has a plurality of bristles on the surface, the drum is connected to a drum space inside the drum at both ends; an active cover and a driven cover are respectively combined with the drum and, an actuator is fixed with a straight pipe at one end, and a transmission shaft is extended at the other end, the straight pipe and the driven cover rotate with each other, and the transmission shaft rotates together with the driving cover to support the actuator into the inner space of the drum.

In this way, the brush of the present invention is provided with an actuator inside, so as to avoid the defects such as corrosion, short circuit or electric leakage of the actuator caused by external factors of humidity.

In order to make the objects, features and advantages of the present invention easy to understand, one or more preferred embodiments are presented and described in detail as follows in conjunction with the accompanying drawings.

Next, the embodiments of the present application will be described with reference to the accompanying drawings. In the drawings, the same or similar structures or elements are denoted by the same reference numerals. It is foreseeable that the described embodiments are only some examples of the present application, not all of the embodiments. Other embodiments that can be obtained by deduction based on the described examples, or modified or changed structures as needed, all fall within the scope of protection of this case.

In the following description, directional terms such as "up", "down", "left", "right", "front", "rear", "inner", "outer" and "side" refer only to the directions of the drawings. . The use of directional terms is for better and clearer description and understanding of the present case, and does not indicate or imply that the devices or elements described must have specific orientations, structures and operations, and therefore cannot be construed as limitations on the technical content of the present case.

Unless there are specific and clear specifications and limitations, in the following description, "installed", "connected", "connected" or "disposed on" should be understood in a broad sense, such as fixed connection, detachable connection, integral connection, mechanical connection , directly connected, indirectly connected, or connected between two elements. For those skilled in the art of the present application, with common knowledge or experience, they can understand the specific meanings of the above terms in various embodiments and even in the present application.

In the following description, "plurality" means two or more, unless otherwise specified.

As shown in Figures 1 to 3, a preferred embodiment of a brush 10 includes: a roller 11, an active cover 20, three sets of fasteners 22, 32, 43, three sets of (headless) bolts 25, 35 , 46 , a driven cover 30 , a bearing 38 , an actuator 40 and a retaining ring 49 .

The actuator 40 includes: a hollow casing 41 , two end caps 42 , a fixed tube 44 , a coupling 45 , a straight tube 47 and a motor 50 . Usually, the electric motor 50 is also called an electric motor or a motor, which is composed of a stator combined with a rotor. The stator is electrically connected to at least one wire 52 , converts electrical energy into mechanical energy for rotor rotation, and uses the rotor as a transmission shaft 51 . A set of fasteners 43 locks the motor 50 to the inner side of the end cover 42 , and the drive shaft 51 passes through the end cover 42 and protrudes out of the outer side.

The end caps 42 are combined with the two ends of the casing 41 to seal the motor 50 in the casing 41 through adhesive or other fixing means. One end of the fixing tube 44 passes through the other end cover 42, and the two are welded together. The other end of the fixed tube 44 faces the straight tube 47 and is inserted into the coupling 45 together to form a pipeline, and the guide wire 52 extends out of the straight tube 47 through the fixed tube 44 . A set of bolts 46 are locked into the coupling 45, respectively pressing the fixed pipe 44 and the straight pipe 47, so that the straight pipe 47 can stand on the end cover 42 and be fixed. In addition, the retaining ring 49 catches a groove 48 of the straight pipe 47 .

The outer surface 12 of the drum 11 is provided with a plurality of bristles 13 . The two ends of the drum 11 are respectively connected to an inner cylinder space 15 inside the drum 11 , allowing the actuator 40 to enter the inner cylinder space 15 through either end of the drum 11 .

The active cover 20 is formed with a central hole 26 along the axial direction. The central hole 26 penetrates from the outer side of the active cover 20 to the inner side of the active cover 20 , and a small diameter portion 23 is raised. Along the vertical (or radial) direction of the axis of the active cover 20 , the small diameter portion 23 forms a plurality of screw holes 24 connected to the central hole 26 .

When the active cover 20 contacts one end face 14 of the drum 11 , another set of fasteners 22 pass through a set of holes 21 of the active cover 20 like screws and lock into the drum 11 , so that the active cover 20 is fixed on the drum 11 . The small diameter portion 23 enters the inner space 15 of the cylinder, so that the partial transmission shaft 51 protrudes out of the active cover 20 through the central hole 26 . Another set of bolts 25 are locked into the screw holes 24 and press or tighten the transmission shaft 51, so the transmission shaft 51 and the active cover 20 can rotate together.

The driven cover 30 forms a circular hole 36 and a bearing chamber 37 in the axial direction. The circular hole 36 communicates with the bearing chamber 37 , and the diameter of the circular hole 36 is smaller than that of the bearing chamber 37 . The bearing chamber 37 penetrates the other small diameter portion 33 protruding inside the driven cover 30 , and along the vertical (or radial) direction of the axis of the driven cover 30 , a plurality of screws connected to the bearing chamber 37 are formed in the small diameter portion 33 . hole 34. When the bearing 38 is placed in the bearing chamber 37 , another set of bolts 35 are locked into the screw holes 34 and press or tighten the bearing 38 , but the circular hole 36 will not be blocked by the bearing 38 .

When the driven cover 30 contacts the other end face 14 of the drum 11 , other sets of fasteners 32 pass through a set of holes 31 of the driven cover 30 like screws to lock the drum 11 so that the driven cover 30 is fixed. At this moment, the small diameter portion 33 and the bearing 38 enter the inner space 15 of the cylinder, allowing the straight tube 47 to extend out of the driven cover 30 through the bearing 38 and the circular hole 36 . The bearing 38 is in contact with the retaining ring 49 , which directly determines the length of the straight tube 47 extending from the driven cover 30 , and indirectly affects the length of the transmission shaft 51 extending from the active cover 20 . In this way, the bearing 38 allows the straight pipe 47 and the driven cover 30 to rotate mutually, and the straight pipe 47 cooperates with the transmission shaft 51 to support the actuator 40 to maintain a suspended state in the inner space 15 of the drum 11 .

In short, the active cover 20 and the driven cover 30 seal the actuator 40 in the inner space 15 of the drum 11 . The actuator 40 is inside the brush 10. Even if the brush 10 cleans the solar panel and encounters flowing liquid, the roller 11, the active cover 20, the driven cover 30, the casing 41 and the end cover 42 can block the liquid Spray or splash the motor 50 to reduce the incidence of short circuits or leakage. The motor 50 is not exposed to wet water, and is of course not susceptible to moisture or rust.

In the case of no power supply, the straight pipe 47 is assumed to be stationary, the end cap 42 is prevented from rotating the casing 41 via the coupling 45 and the fixed pipe 44, so the motor 50 (the stator) remains stationary. At this moment, the bearing 38 supports the driven cover 30 to rotate around the straight pipe 47, so that the drum 11 drives the driving cover 20 to rotate with the drive shaft 51 (ie, the rotor). Therefore, the drum 11 can rotate around the actuator 40 .

If the drum 11 is stationary, the active cover 20 and the driven cover 30 are stationary, and the transmission shaft 51 (ie, the rotor) remains stationary. At this moment, the straight tube 47 rotates, the fixed tube 44 and the end cover 42 are driven to rotate through the coupling 45, and the casing 41 and the motor 50 (ie the stator) are driven to rotate relative to the transmission shaft 51 (ie the rotor). Therefore, the actuator 40 and the drum 11 are in a rotational relationship with each other.

As shown in FIG. 4 , the straight pipes 47 at both ends of the brush 10 and the transmission shaft 51 serve as axes, and are arranged in a hollow frame 60 . The frame 60 has two supporting parts 61 standing side by side, respectively connecting the straight pipe 47 and the transmission shaft 51 . A bearing 62 is embedded in the support portion 61, so that the transmission shaft 51 is connected to the support portion 61 to be able to rotate. The other support portion 61 has no bearing, so the straight pipe 47 is fixed on the support portion 61 .

Under the power supply of the wires 52, the drive shaft 51 drives the active cover 20 to rotate, drives the roller 11 to rotate relative to the frame 60, and cleans some objects, such as the surface of the solar panel, through the bristles 13.

As shown in FIG. 5 , the straight pipes 47 at both ends of the brush 10 and the transmission shaft 51 are shafts, and an operation unit 63 is arranged. The operating unit 63 has a support portion 64 , and one end of the support portion 64 is bifurcated into two arms 65 and 66 . The arm 65 is pivotally connected to the transmission shaft 51 , and the other arm 66 is connected to the straight pipe 47 . The straight pipe 47 is immobile, so the electric wire 52 supplies the electric power required by the drive shaft 51 to make the drum 11 and the bristles 13 rotate relative to the support part 64, and the cleaning operation can also be performed.

Those skilled in the art can understand and make changes to the above-mentioned embodiments without departing from the broad concept of the present case. Therefore, this case is not limited to the specific embodiments disclosed in the specification, and all modifications made according to the spirit and technical scope of this case should be covered and protected by the text content defined in the scope of the patent application.

10: Brushes

11: Roller

12: Appearance

13: Bristles

14: End face

15: Space inside the cylinder

20: Active cover

21, 31: holes

22, 32, 43: Fasteners

23, 33: Small diameter part

24, 34: screw holes

25, 35, 46: Bolts

26: Center hole

30: driven cover

36: round hole

37: Bearing room

38: Palin

40: Actuator

41: Shell

42: End cap

44: Fixed tube

45: Coupler

47: Straight pipe

48: Ditch

49: Buckle

50: Motor

51: Drive shaft

52: Wire

60: Frame

61: Support Department

62: Bearing

63: Operation unit

64: Support Department

65, 66: Arm

Figure 1 depicts an exploded view of a preferred embodiment of the brush. Figure 2 shows the combined brush. Figure 3 shows the internal structure of the brush assembly. In Fig. 4, the brushes of solid lines are arranged in the frame of dotted lines. In Fig. 5, the solid line brush is attached to the broken line operation unit.

10: Brushes

11: Roller

13: Bristles

20: Active cover

22: Fasteners

30: driven cover

40: Actuator

41: Shell

42: End cap

45: Coupler

47: Straight pipe

51: Drive shaft

52: Wire

Claims (6)

A brush, comprising: a plurality of bristles (13) on the outer surface (12) of a drum (11), two ends of the drum (11) are respectively connected to an inner space (15) in the drum (11); an active The cover (20) is combined with one of the two end faces (14) of the drum (11). One side of the active cover (20) is raised with a small diameter portion (23), from the other side of the active cover (20) to the small diameter portion (23). 23) Passing through a central hole (26), the small diameter portion (23) forms at least one screw hole (24) connected to the central hole (26) in the radial direction; a driven cover (30) is combined with the drum (11) On the other end face (14) of the driven cover (30), a small diameter part (33) is raised on the side of the driven cover (30). The center part of the small diameter part (33) is provided with a bearing chamber (37). The diameter portion (33) forms at least one screw hole (34) connected to the bearing chamber (37); and an actuator (40) is fixed with a straight pipe (47) at one end, and a transmission shaft (51) is extended at the other end , the straight pipe (47) and the driven cover (30) rotate with each other, the transmission shaft (51) rotates together with the driving cover (20), and supports the actuator (40) to be placed in the inner space ( 15); When the active cover (20) is fastened to the end face (14) of the drum (11), the small diameter portion (23) enters the inner space (15) of the cylinder, and the transmission shaft (51) passes through the central hole (26) Extending out of the active cover (20), at least one bolt (25) is locked into the screw hole (24) and presses the transmission shaft (51); the driven cover (30) is fastened to the end face (14) of the drum (11) When the small diameter part (33) enters the inner space (15) of the cylinder, the straight pipe (47) extends out of the driven cover (30) through a bearing chamber (38) inserted into the bearing chamber (37), at least A bolt (35) locks into the screw hole (34) and presses the bearing (38). The brush according to claim 1, wherein a group of bolts (25) are respectively locked into the corresponding screw holes (24) and press the transmission shaft (51). The brush device according to claim 1, wherein a group of bolts (35) are respectively locked into the corresponding screw holes (34) and press the bearing (38). The brush device according to claim 1, wherein the straight pipe (47) forms a groove (48), and a retaining ring (49) catches the groove (48) and blocks the bearing (38), so that the straight pipe (47) is determined. ) extends beyond the length of the driven cover (30). The brush device according to any one of claims 1 to 4, wherein the actuator (40) comprises: a hollow housing (41); a motor (50) electrically connected to at least one wire (52) ), the motor (50) is connected to the partial drive shaft (51); two end caps (42) are combined with both ends of the casing (41) to enclose the motor (50) in the casing (41), one end of which is The cover (42) is connected to the motor (50) and allows the transmission shaft (51) to pass through, and the other end cover (42) is connected to the straight pipe (47) to be fixed so that the wire (52) is connected to the outside through the straight pipe (47). The brush according to claim 5, wherein the actuator (40) further has a fixing tube (44) and a coupling (45), one end of the fixing tube (44) is welded with the end cover (42), and the other The end is connected to the end of the straight pipe (47) deep into the inner space (15) of the cylinder through the coupling (45), and the electric wire (52) goes to the outside through the fixed pipe (44) and the straight pipe (47).

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