KR100352063B1 - A black board eraser for shake device - Google Patents

Abstract

PURPOSE: A device for shaking the chalk powder off a blackboard eraser is provided to lengthen the life span of a motor of a device and to improve the reliability of the device by preventing an intake motor from being polluted. CONSTITUTION: A device for shaking the chalk powder off a blackboard eraser comprises a case(10) divided into an upper space and a lower space and combined with a rotatably door, an entrance(15) formed in the upper space of the case and through which an eraser goes in and out, a rotating shaft rotatably combined to the case and rotated by a brush motor, a brush formed in the shape of an hourglass, installed in orthogonal to the movement direction of the eraser, and shaking chalk powder off the eraser by rotating with the rotating shaft, an intake motor(26) combined to the lower space and generating a driving force, an intake fan(27) sucking the air in the upper space into the lower space and discharging the air in the lower space out of the case, and a filter(25) filtering the chalk powder in the air.

Description

Blackboard eraser for shake device}

The present invention relates to a blackboard eraser hair device, and more particularly, by allowing the chalk dust shaken by the brush to be filtered through the filter, the chalk dust is prevented from being blown out when the blackboard eraser is shaken out and It is about a blackboard eraser device that can extend the life of the motor by not contacting the motor.

Generally, as shown in FIG. 1, the blackboard eraser hair device includes a suction motor 2 inside the case 1 and a suction fan 2a on the suction motor 2. And the disc brush (3) exposed to the outside is connected to the motor shaft (2b) of the suction motor (2), the guide portion (1a) is formed in the form of wrapping the disc brush (3) on the upper end of the case (1) do. The guide part 1a serves to guide the blackboard eraser 4 to move, and a plurality of suction holes 1b are formed on the surface of the guide part 1a to allow chalk powder to enter the case 1. .

In addition, the inside of the case 1 is provided with a hopper 5 to surround the suction motor 2, and the bottom of the hopper 5 is provided with a collecting container 6 for collecting chalk powder. And the lower end of the case 1 is provided with an exhaust port for exhausting the sucked air to the outside, respectively.

In the conventional blackboard eraser hair care device configured as described above, the disc brush 3 connected to the motor shaft 2b of the suction motor 2 is rotated. Put the eraser on the guide portion (1a) to shake the blackboard eraser (4) and move back and forth several times, the bottom surface is shaken by the rotating disk brush (3) and chalk powder falls from the eraser. The fallen chalk powder is sucked into the case 1 through the plurality of suction holes 1b formed on the surface of the guide part 1a. The chalk powder sucked into the inside of the case is moved to the lower portion of the hopper 5 through the suction fan 2a and is then accumulated in the container 6.

However, since the suction motor 2 is installed in the center of the hopper 5 in the process of sucking the chalk powder, there is a disadvantage that it is exposed to the sucked chalk powder to contaminate the motor. Therefore, if you use the hairdressing device for a long time, the chalk powder accumulates in the suction motor (2) and shortens the life of the motor. Also, the chalk powder accumulated in the container (6) is sucked while the chalk powder is sucked. As a result of being blown into the inside of the case 1, the inside of the case has a disadvantage of being messy by flying chalk powder.

In addition, since the moving direction of the board eraser 4 moving along the guide portion 1a and the rotation direction of the disc brush 3 are different, the eraser cannot be effectively brushed off and some chalk powder is blown out of the case in the process of bursting. In addition, the airtightness of the suction motor is significantly reduced and a considerable amount of airflow leaks out of the suction motor of the suction motor to compensate for the decrease in suction power of the suction motor. This was so severe that it exposed all the problems that hindered the reliability of the product.

The present invention was developed in view of various problems in the related art, and an object of the present invention is to prevent the eraser from being exposed to the outside so that the chalk powder does not float around the room and the rotation direction of the brush and the moving direction of the eraser are the same. In order to effectively erase the eraser and to filter out the sucked chalk by a separate filter, it is possible to provide a blackboard eraser hair device that does not contaminate the suction motor to extend the life of the motor and improve the reliability of the product. .

1 is a cross-sectional view of a conventional hairdressing apparatus

2 is a perspective view of the present invention hair device

Figure 3 is a front sectional view of the present invention hair device

Figure 4 is a side cross-sectional view of the present invention hair device

<Code Description of Main Parts of Drawing>

10 case 11: separator

12: upper space 13: lower space

14 passage 15 doorway

16: exhaust port 17: brush

18: axis of rotation 19: bulkhead

20: brush motor 21: drive pulley

22 belt 23 driven pulley

24: filter case 25: filter

26: suction motor 27: suction fan

28: blackboard eraser

In order to achieve the above object, the present invention forms an exterior and the inside is partitioned into an upper space and a lower space by a separator plate and the case is coupled to the door rotatably coupled to the upper space and the lower space on the outside, Is formed in the upper space of the upper side of the case penetrates the front and rear of the case so that the blackboard eraser enters, and rotatably coupled in the case on the side of the upper space so that a portion across the inside of the entrance is rotatably The outer surface of the rotating shaft connected to the brush motor and rotated by the brush motor, and the outer peripheral surface of the rotating shaft located inside the doorway is formed in the shape of an oblong shape having a centered shape so as to surround the outer peripheral surface of the blackboard eraser, and the bottom of the blackboard eraser. Is installed perpendicular to the moving direction of the eraser A brush that shakes out the chalk dust from the blackboard eraser while being rotated with the rotating shaft rotated by the brush motor, a suction motor coupled to a predetermined position in the lower space to generate a driving force, and rotatably coupled to the suction motor. A suction fan rotated by the suction motor to suck air in the upper space into the lower space and discharge the air sucked into the lower space through the exhaust port formed on the outer surface of the case to the outside of the case; The filter is detachably coupled to a passage formed to connect the upper space and the lower space to the separation plate, and is filtered by a brush to filter out chalk dust contained in air sucked into the lower space from the upper space by the rotational force of the rotating fan. Provided is a blackboard eraser hairdresser, characterized in that configured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the present invention hair device and Figure 3 is a front sectional view of the present invention hair device. The present invention is provided with a rectangular case 10 to form an appearance, the hinge 10b in front of the case 10 The door 10a is rotatably coupled to open and close at the center of the door. The blackboard eraser 28 is inserted into the upper space 12 of the upper side of the door 10a, that is, the upper side of the case 10. An entrance 15 penetrated to the front and rear of the case 10 is provided. The doorway 15 is a place where the blackboard eraser 28 enters and exits, and the inside of the doorway 15 is in contact with the bottom surface of the blackboard eraser 28 and in a direction perpendicular to the moving direction of the blackboard eraser 28. Brush 17 is provided to rotate. The brush 17 is formed on the outer circumferential surface of the rotating shaft 18, the rotating shaft 18 is rotatably coupled in the case 10 of the upper space 12 side and A part of the rotary shaft 18 is located across the inside of the doorway 15, one side of the rotary shaft 18 is the brush so that the rotary shaft 18 is rotated by the driving force generated in the brush motor 20 The driven pulley 23 is rotatably coupled to one end of the rotation shaft 18, and the drive pulley 21 is rotatably coupled to the brush motor 20. The drive pulley 21 and the driven pulley 23 are the Shh has a belt 22 which is connected to transmit by receiving the driving force generated by the motor 20, the driving force of the brush motor 20 so that the rotating shaft 18 rotates in the rotation axis (18).

The brush 17 is configured in the form of a janggu having a narrow center so as to surround the outer peripheral surface of the blackboard eraser 28. In addition, the inside of the case 10 is the upper space 12 and the lower portion of the case 10. Separating plate 11 is provided to partition the space 13, the front of the separating plate 11 is opened toward the door (10a) passage 14 for connecting the upper space 12 and the lower space 13 A filter case 24 having an open upper portion is fitted into the passage 14, and a porous filter 25 made of paper is embedded in the filter case 24. A plurality of holes 24a are formed on the surface of the filter case 24.

In addition, a suction motor 26 is provided in the lower space 13 partitioned by the separating plate 11, and the upper part of the suction motor 26 sucks air from the upper space 12 into the lower space 13. A suction fan 27 is provided to exhaust the exhaust port 16 formed at one side of the case 10. In the upper space 12, the brush motor 20 is formed in each space formed by dividing the upper space 12. And a partition wall 19 which separates the rotating shaft 18 to which the brush 17 is coupled to each other is positioned, and fixes one side of the brush motor 20 and the rotating shaft 18 to each other. 24b is a flange formed on the upper circumferential surface of the filter case 24 so as to be caught by the outer circumferential surface of the passage 14, 24c is a packing formed on the bottom of the flange 24b, and 10c is in contact with the side of the separating plate 11 The packings formed on the inner side of the door 10a are respectively shown to completely separate the lower space 13.

In the hair device of the present invention configured as described above, the inside of the case 10 is composed of the upper space 12 and the lower space 13 by the separating plate 11, and the upper space 12 is nutrients by the partition wall 19. It is. In addition, the space on one side of the space divided by the partition wall 19 communicates with the doorway 15 formed before and after the upper part of the case 10, and the door shaft 15 traverses the door shaft 18. On the outer circumferential surface of 18), a brush 17 for brushing off the blackboard eraser 28 is provided.

In addition, the brush motor 20 is built in another space of the partition wall 19, and the driving pulley 21 of the brush motor 20 and the driven pulley 23 of the rotating shaft 18 are connected to each other through the belt 22. It is. Therefore, when the brush motor 20 is rotated at a high speed, the rotational force of the driving pulley 21 is transmitted to the driven pulley 23 by the belt 22 so that the rotation shaft 18 rotates in one direction.

As shown in FIG. 4, when the brush 17 is rotated in the clockwise direction, the blackboard eraser 28 is pushed from the right side to the left side of the doorway 15 so that the blackboard eraser is shaken off as the brush is rotated during the pushing. When pushed and released, the board eraser 28 is pushed to the right due to the rotational direction of the brush 17 to exit the doorway 15. Repeat this process several times and you can brush off the eraser.

In addition, since the eraser whisks into the inside of the case 10, the chalk powder does not fly to the outside of the case and does not dirty the surroundings. When the suction motor 26 is operated while the brush 17 is rotated, the suction fan 27 is rotated at a high speed while the air in the upper space 12 of the separator 11 is moved to the lower space 13. Inhale. At this time, the air in the upper space 12 is sucked into the hole 24a of the filter case 24 via the filter 25 and then exhausted to the outside through the exhaust port 16. In this process, the chalk powder shaken by the brush 17 provided in the upper space 12 is filtered by the filter 25.

In addition, since the brush motor 20 and the brush 17 are separated by the partition 19, the upper space 12 cannot be approached toward the brush motor 20 while the chalk powder does not approach the brush motor 20 while the eraser is brushed off. It can extend the life. In addition, since the chalk dust is completely filtered out of the filter, the lower space 13 with the suction motor 24 is clean, so the suction motor 24 is also not contaminated with chalk powder, which can prolong its life. You can store some supplies such as erasers and chalk.

As described above, according to the present invention, the case constituting the hair device is divided into an upper space and a lower space by a separating plate, and a brush for brushing an eraser and a brush motor for driving the brush are respectively built in the upper space. At this time, the brush and brush motor are separated by the partition wall, so that the brush motor is not polluted by the chalk powder that is blown out. Also, a filter and a filter case are provided in the passage connecting the upper and lower spaces, and the air in the upper space is lowered in the lower space. Each suction motor for suction and exhaust into the space is built in, so that the chalk powder shaken in the upper space is filtered out of the filter. In addition, it is possible to extend the life of the suction motor by filtering the chalk powder in the upper space and because the chalk powder accumulated in the filter does not fly to the upper space but collects in the filter while inhaling the chalk powder, the upper space is not contaminated. In addition, since the interior space of the hair device case is tightly sealed, the driving noise of the suction motor is not emitted to the outside to achieve a quiet and comfortable use, thereby providing various effects that enhance user's use stability and reliability.

Claims (4)

The door 10a is formed so that the inside is partitioned into the upper space 12 and the lower space 13 by the separating plate 11 and the upper space 12 and the lower space 13 are opened and closed on the outside. Case 10 is rotatably coupled, An entrance 15 formed in the upper upper space 12 of the case 10 and penetrating in front and rear of the case 10 to allow the blackboard eraser 28 to enter and exit; The inside of the doorway 15 is rotatably coupled to the case 10 on the side of the upper space 12 so that a portion thereof is positioned across the door 15, and one side is connected to the brush motor 20 by the brush motor 20. A rotating shaft 18 to be rotated, The outer circumferential surface of the rotary shaft 18 located inside the doorway 15 is formed in an elongated shape having a centered shape so as to surround the outer circumferential surface of the blackboard eraser 28 and to be in contact with the bottom surface of the blackboard eraser 28. Brush 17 is installed orthogonal to the moving direction of the blackboard eraser 28 to shake off the chalk powder from the blackboard eraser 28 while being rotated with the rotating shaft 18 rotated by the brush motor 20, A suction motor 26 coupled to a predetermined position in the lower space 13 to generate a driving force; Rotatably coupled to the suction motor 26 to suck air in the upper space 12 into the lower space 13, and the lower portion through an exhaust port 16 formed on an outer surface of the case 10. A suction fan 27 rotated by the suction motor 26 to discharge the air sucked into the space 13 to the outside of the case 10; The separation plate 11 is detachably coupled to the passage 14 formed to connect the upper space 12 and the lower space 13 to be separated by a brush 17 to be upper by the rotational force of the rotating fan 27. Chalkboard eraser hair device, characterized in that consisting of a filter (25) for filtering out the chalk powder contained in the air sucked into the lower space (13) in the space (12). The method of claim 1, In the upper space 12, the brush 17 and the brush motor 20 are separated to be positioned in each space formed by dividing the upper space 12, and the brush motor 20 and the rotating shaft 18 are separated from each other. A partition wall 18 having one side fixedly coupled therewith, the drive pulley 21 is axially coupled to the brush motor 20, and the driven pulley 23 is provided at one side of the rotating shaft 18 on which the brush 17 is installed. To combine, the drive pulley 21 and the driven pulley 23 is a blackboard eraser hair apparatus, characterized in that the belt 22 is connected to transmit the driving force of the brush motor 20 to the rotating shaft (18). The method of claim 1, The filter 25 forms a plurality of holes 24a in the surface and a flange 24b is formed on the upper outer circumferential surface so as to be contacted with the outer circumferential surface of the passage 14 so as to be fitted into the passage 14 and detachably coupled thereto. Blackboard eraser hair device, characterized in that built in the filter case (24). delete