KR950006889B1 - Vacuum cleaner for chalk dust - Google Patents

Abstract

A portable and battery-rechargeable cleaner, for use in removing dusts on the narrow space, pref. chalk dusts on the cross-piece of the chalk-board formed as a dust-trap, comprises a suction inlet (24) connected with a flexible hose (23) and a main body (1) having a handle (11) on the top and four caster wheels (10) at the bottom. The main body is partitioned into an upper chamber(3) and a lower chamber (4). An inner case (5) having a bottom hole (2a) and a suction pipe (22) connected with the hose, a rechargeable battery (6), a charger (7) and a transformer (8) are mounted within the upper chamber. A couple of electric fans (13) with motors (16), vibrators (13, 13a) with vibration arms (21), first metal filters (18) arranged inside apart and second filters (19) spaced outside apart to the 1st. filters, are installed in the inner case. A dust drawer is located in the lower chamber. The vibration arms are positioned between the 1st. filter and the 2nd. filter so as to shake the dust off.

Description

Blackboard Chalk Flour Cleaner

1 is a reference perspective view of an automatic vacuum cleaner according to the present invention.

2 is a longitudinal sectional view showing the internal configuration of FIG.

3 is a front view showing an internal case extracted from FIG.

4 is a cross-sectional view along the line AA ′ of FIG. 3.

* Explanation of symbols for main parts of the drawings

1: body 2: diaphragm

2a: opening 3,4: upper and lower space

5: inner case 6: battery

7: charger 8: trance

9: dust collector drawer 13,13a: vibrator

14: dust suction mechanism 15: suction space

16,16a: fan motor 17: fan

18,19: 1st, 2nd filter 21: diaphragm

22: connector 23: hose

24: hose terminal mechanism 25: dust suction port

26: sole 27: opening and closing board

28: open and close lever 29: voltage selection switch

30: main power switch 31: on-off switch

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic vacuum cleaner for removing blackboard chalk furniture, and more particularly, to a blackboard chalk furniture cleaner so as to easily clean the chalk dust accumulated in the dust collector of the cleaner blackboard.

When the blackboard is used, chalk powder is accumulated on the chalk tray formed by bending under the blackboard, and a conventional vacuum cleaner is used to remove and clean the accumulated chalk powder.

However, when the vacuum cleaner is used, the power cord wire of the main body is plugged into a wall outlet, and when the distance from the blackboard is far from the use, the cord wire may be disconnected or may not be used where there is no outlet. Since the shape of the inhaler is not suitable for the chalk tray of the blackboard, the removal and cleaning of the chalk powder is not easy.

In addition, when the vacuum cleaner is used, the filter must be shaken according to the adhesion force of the chalk powder, and the filter is frequently replaced, which causes a high maintenance cost of the cleaner and does not properly perform the cleaning and replacement of the filter. There are many inadequacies, such as failure.

Therefore, in most cases, the vacuum cleaner does not rely on the cleaning means, and the cleaning is often performed by a primitive tool means such as a brush, a mop, or a broom. It is not done and has an unsanitary problem.

The present invention was developed in order to solve the conventional problems as described above, the object of the present invention is to provide a dedicated cleaner suitable for the removal of chalk dust or similar dust, 2. If the vacuum cleaner to charge the cleaning of its own filter It makes it possible to reduce the maintenance cost, and 3. to give hygienic characteristics to the rapid clean removal of chalk powder by the vacuum suction means of the cleaner.

The present invention provides a handle having a handle and a moving wheel installed above the main body so that the main body can be dragged around the main body so as to implement the above object, and an opening in which the upper space communicates with the lower space partitioned horizontally in the main body. It is installed in the upper and lower spaces formed by the partition wall and has one side of the upper space, and it is elastically installed by a spring on the bottom of the inner case and the suction mechanism which sucks in dust from the hose terminal mechanism, and makes it possible to open and close the bottom. An inner case having an opening mechanism, a hose terminal mechanism for absorbing dust to be sucked into the inner tube by a connecting pipe, and a sliding drawer installed under the opening mechanism of the inner case shaft to store dust sucked into the apparatus. It is characterized by the blackboard chalk powder automatic cleaner of the composition including all .

Hereinafter, by referring to this in more detail with the accompanying drawings, more specific features of the present invention will be understood.

That is, FIGS. 1 to 4 show an automatic cleaner according to the present invention.

Here, the main body 1 in which the handle 11 and the moving wheel 10 provided above the main body 1 and the moving wheel 10 are installed in the lower part so that the main body 1 can be dragged around, and the main body 1 is partitioned horizontally. The upper and lower spaces 3 and 4 formed by the partition wall 2 having the opening 2a through which the upper space 3 communicates with the lower space 4, and one side portion of the upper space 3. An internal having a suction mechanism 14 which sucks the powder from the hose terminal mechanism 24 and an opening mechanism 27 and 28 which are elastically installed on the bottom of the inner case 5 by a spring and are open to the bottom to enable the bottom to be opened and closed. A hose terminal mechanism 24 connected to the case 5, the inner case 5 by a connecting pipe 22 to absorb dust to be sucked, and opening and closing mechanisms 27 and 28 on the inner case 5 side. It is composed of a sliding drawer (9), which is installed at the lower side and stores dust attracted into the device, integrally. have.

The main body 1 has an inner case 5, a battery 6, a charger 7, a transformer 8, and the like on the upper side of the diaphragm 2 having an opening 2a at its inner center. Sliding drawers (9) are formed in the upper space (3) to secure the space, and located in the upper space (3) to the lower part of the diaphragm (2) on both sides of the main body (1). The lower space 4 is formed to accommodate the space.

In addition, the wheel 10 is fixed to the bottom of the main body 1 to allow the movement of the cleaner, and the through hole 12 on the upper side of the main body 1 while fixing the handle 11 to the upper part of the main body 1. Perforate.

As for the suction mechanism 14 of the said inner case 5, normal vibrators 13 and 13a are provided in the side of the suction space part 15 in the space which protruded the front lower part of the inner case 5, and this vibrator Fan motors 16 and 16a having fans 17 together with primary and secondary filters 18 and 19 are installed at one side of the 13 and 13a, and among the primary and secondary filters 18 and 19, respectively. The primary filter 18 is a double metal plate at appropriate intervals, and the secondary filter 19 which has a dense mesh consists of a normal filter.

In addition, a rubber plate is attached to both surfaces of the primary filter 18, and the vibrators 13 and 13a are provided symmetrically with the support 20 interposed therebetween, and the diaphragm 13 and 13a extend to the diaphragm 21. Thus, the diaphragm 21 was configured to be positioned in the middle between the primary and secondary filters 18 and 19.

One end of the connection pipe 22 of the hose terminal mechanism 24 is connected to the suction space 15 on the upper side of the inner case 5, and the other end penetrates through the upper hole 12 of the main body 1 to the outside. The hose 23 is fixed to the connecting pipe 22 in the exposed state, and the brush 26 is connected to the end of the hose 23 while the dust inlet 25 coupled with the handle is connected to the dust inlet 25. ) Is attached.

In addition, the bottom of the inner case 5 is connected to the opening and closing plate 27 of the opening and closing mechanism (27,28), one side of the opening and closing plate 27 and the spring fixed to one side of the bottom corner of the inner case (5) Opening and closing levers for opening and closing the opening and closing plate 27 when cleaning the cleaner while keeping the closed state is normally closed by the spring at the bottom of the inner case (5) 28).

On the other hand, the transformer (8) and the charger (7), the charger (7) and the battery (6) is connected to the electric cable by the usual technical means to install a combined voltage of 110V and 220V, and the vibrator ( The vibrators 13 and 13a are connected to the transformer 8 so that the diaphragm 21 of the 13 and 13a can be operated, and the battery 6 is connected to the main motor 1 while being electrically connected to the fan motors 16 and 16a. The voltage selector switch 29 is connected to the transformer 8.

In addition, the main power switch 30 is provided on the upper surface of the main body 1, and is connected to the transformer 8 and the charger 7, and is turned on and off by the handle 24 of the hose 23 of the hose terminal mechanism 24. The switch 31 was installed and connected to the fan motors 16 and 16a.

In addition, the power supply lamp 32 and the charging lamp 33 is installed on the upper surface of the main body 1 so that the power supply lamp 32 is turned on when the main power switch 30 is turned on. The charging lamp 33 was connected to the charger 7 so as to indicate the state.

The electrical connection and connection of each part listed above is possible by conventional technical means.

On the other hand, the front and rear sides of the main body 1 is provided with ventilation holes 34 and the side hose connecting portion of the main body 1 is installed an outlet 35 or a plug which is connected to the transformer 8 to the external power source when charging the cleaner It is configured to be connected to the terminal.

Reference numeral 40 is chalk powder.

As described above, the present invention has the following effects and effects.

That is, when the cleaner according to the present invention intends to remove the chalk powder and its dust accumulated on the chalk tray of the blackboard, first grab the handle of the hose 23 of the hose terminal mechanism 24 and hold the handle of the main body 1. When the main power switch 30 is turned on, the power lamp 32 is turned on and the fan motors 16 and 16a operate by receiving current from the battery 6 and at the same time the fan 17 on the suction mechanism 14 side. This works for rotation.

At this time, the fan 17 sucks air in the suction space 15 to the fan 17 through the mesh holes of the primary and secondary filters 18 and 19, so that suction force is generated in the suction space 15. do.

Therefore, while holding the handle of the suction terminal mechanism 24 and moving the dust suction opening 25 while connecting to the chalk furniture receiver of the blackboard, the chalk powder 40 of the chalk dust collector 40 and dust are easily separated by the brush 26. It falls directly below the suction space 15 of the inner case 5 through the hose 23 and the connecting pipe 22, whereby the chalk powder 40 is caused by the primary filter 18 of the suction mechanism 14. The second filter 19 is filtered and finer dust is trapped than the chalk powder 40.

In addition, some of the chalk dust and dust have a state attached to the primary and secondary filters (18, 19).

Thus, in order to remove the chalk powder and dust attached to the primary and secondary filters 18 and 19 and drop it to the bottom of the inner case 5, the outlet of the main body 1 in the state of removing the chalk powder of the blackboard is completed. When the vibrators 13 and 13a are operated by connecting a separate cord wire of 35) and the vibrators 13 and 13a are operated, the rubber plates attached to both sides of the diaphragm 21 generate fine vibration as shown in FIG. In this case, the secondary filters 18 and 19 are gently beaten, and the chalk powder and dust attached to the primary and secondary filters 18 and 19 are easily separated and fall off.

In particular, since the primary filter 18 is made of a metal mesh, separation of chalk powder is made easier.

After cleaning and removing the chalk powder and dust of the blackboard and separating and removing the chalk powder and dust of the filter, grab the open / close lever 28 exposed on the main body 1 and pull it in the direction of the right arrow as shown in FIG. 3 to open / close the lever 28. Since the lower end of the opening and closing plate 27, the opening and closing plate 27 is open while the chalk powder (40) and dust accumulated on the bottom surface of the opening and closing plate 27 of the inner case (5) and the lower dust collection drawer ( 9) to be collected away.

After using the cleaner for a long time, the drawer 9 may be opened to remove chalk powder accumulated in the drawer 9.

On the other hand, when the current of the battery 6 is used up to charge, the voltage selection switch 29 of the main body 1 is set to a desired voltage, that is, 110V or 220V, and the main power switch and the on-off switch are set. When the cords are connected to the outlet 35 in the state where all of them are turned off, and then connected to an external power source, in the case of 110V, the voltage is directly applied to the charger 7 so that the battery 6 can be charged with electrical energy. In this case, the voltage down to 110V from the transformer 8 is applied to the charger 7 so that the battery 6 can be charged.

This battery charging operation is the same as in the conventional manner and is not specifically mentioned. While the battery 6 is being charged, the charging lamp 33 is turned on to indicate that the battery is being charged.

In addition, vent holes 34 are formed at both sides of the main body 1 to naturally cool the fan motors 16 and 16a during the operation of the cleaner.

As described above, by providing a dedicated rechargeable automatic vacuum cleaner for removing the chalk powder of the present invention can be used anywhere without a cord wire, and easy to remove the chalk powder because it has a structure of a cleaner suitable for removing the chalk powder Of course, it is hygienic because there is no falling or blowing of chalk powder and dust, and it is a semi-permanent and filterless filter by itself, without changing the filter.

Claims (4)

The main body 1 having the handle 11 and the moving wheel 10 installed above the main body 1 and the moving wheel 10 disposed below the main body 1 so as to be dragged around the main body 1 and partitioned horizontally in the main body 1 is provided. The upper and lower spaces 3 communicate with the lower space 4, the upper and lower spaces formed by the partitions 2, and the hose terminals provided in one side of the upper space 3. And the fan 17 together with the vibrators 13 and 13a and the primary and secondary filters 18 and 19 so as to be connected to the hose terminal port 24 and suck dust therefrom. Inner case 5 having opening and closing mechanisms 27 and 28 which are elastically installed on the bottom of the suction mechanism 14 and the inner case 5 by the fan motors 16 and 16a having the springs to enable the bottom to be opened and closed. Black chalk powder automatic cleaner, characterized in that consisting of). The chalk according to claim 1, wherein the vibrators (13, 13a) of the suction mechanism (14) are provided with rubber plates provided on both sides of the diaphragms (21, 19) so as to contact the primary and secondary filters (18, 19). Powder vacuum cleaner. The dust collector according to claim 1, wherein the dust suction hole (25) of the hose terminal mechanism (24) has a brush (26) attached to the center of the tip cylindrical surface thereof. 3. The blackboard chalk powder automatic cleaner according to claim 1 or 2, wherein the primary filter (18) of the suction mechanism (14) is formed of a metal plate.