CN201095253Y

CN201095253Y - Electric blackboard eraser

Info

Publication number: CN201095253Y
Application number: CNU200720169674XU
Authority: CN
Inventors: 王文希
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-11
Filing date: 2007-07-11
Publication date: 2008-08-06
Anticipated expiration: 2017-07-11

Abstract

The utility model relates to an electric blackboard eraser, which comprises an outer casing, a dust suction chamber, a motor, a fan and erasing strips. The fan is installed on the motor, wherein, the outer casing is sleeved at the lower part of a bottom plate, a circle of concave grooves is arranged around the upper surface of the bottom plate, separating gratings are arranged in the concave grooves, a plurality of long grooves at intervals are arranged on the upper surface of the bottom plate, the erasing strips are arranged in the long grooves, the height of the separating gratings is larger than or equal to the height of the erasing strips, a plurality of through holes are arranged among the long grooves and the concave grooves, the inner cavity of the outer casing at the lower part of the bottom plate is the dust suction chamber, a supporting frame is fixed on the inner wall of the outer casing, the supporting frame is extended into the dust suction chamber, the motor is installed on the supporting frame, a charging power supply is connected at the rear end of the motor, the charging power supply is connected with a charging plug through a conducting wire, through holes are arranged at one side of the outer casing and opposite to the fan, a filtering screen is arranged on the through holes, an opening is arranged at the bottom part of the outer casing, and an upper cover is provided with a dust suction chamber cover. The electric blackboard eraser can be used at any moment and can completely control dust to fly.

Description

Electric blackboard eraser

Technical field

The utility model relates to a kind of cleaning device of blackboard, refers to a kind of electric blackboard eraser especially.

Background technology

Traditional teaching makes chalk dust fly upward when erasing the board with blackboard eraser easily, directly influence the healthy of teacher and classmate, Chinese patent 01264817.5 discloses a kind of dust-collecting type electric blackboard eraser, existing electric blackboard eraser structure cutaway view shown in Figure 1A and Figure 1B, this blackboard eraser comprises shell 1 ', dust-collecting box 2 ', motor 3 ', fan 4 ' and soft wiping thing 6 ', shell 1 ' is inlayed dust-collecting box 2 ', be provided with half arc dust suction chamber 18 ' in the shell 1 ', one side of the dust suction chamber cover 14 ' of half arc dust suction chamber 18 ' is provided with battery case 19 ', battery 15 ' is housed in the battery case 19 ', centre between half arc dust suction chamber 18 ' and the dust-collecting box 2 ' is provided with motor holder 20 ', motor 3 ' is fixed on the motor holder 20 ' with motor hold-down screw 13 ', on the axle of motor 3 ' fan 4 ' is housed, the outside of fan 4 ' is provided with fan guard 5 ', the upper plane angle of fan 4 ' and shell 1 ' is between the 30-65 degree, battery 15 ', switch 16 ', motor 3 ' connects by lead, arc dust suction chamber 18 ' bottom is provided with net formula fixed head 17 ', the fixed mount 21 ' that is provided with hold-down screw 9 ' fixed housing 1 ', the net formula fixed head 17 ' outside is provided with soft wiping thing 6 ', soft wiping thing 6 ' is provided with air suction opening 7 ', the fixedly card 8 ' that soft wiping thing 6 ' is provided with all around with net formula fixed head 17 ' is fixed on the outside of net formula fixed head 17 ', the both sides of dust-collecting box 2 ' are provided with dust-collecting box air vent 10 ', and the inboard of dust-collecting box 2 ' is provided with dustproof film 11 '.

But not protection around the soft wiping thing of this kind electric blackboard eraser, when its blackboard wiping, the periphery of soft wiping thing has dust from flying, thereby influenced the healthy of teacher and classmate, this in addition blackboard eraser powered battery is difficult to guarantee whether power supply has, in case do not have, the problem that electric blackboard eraser and ordinary blackboard eraser occur does not have two samples, therefore need provide a kind of such blackboard eraser, can use at any time and can control dust from flying.

The utility model content

The purpose of this utility model is to provide a kind of electric blackboard eraser, and it can use at any time and can control dust from flying fully.

In order to realize such scheme, technical solution of the present utility model is: a kind of electric blackboard eraser, comprise shell, dust suction chamber, motor, fan and wiping bar, fan is installed on the motor, wherein shell is enclosed within the base plate bottom, be provided with a circle groove around the plate upper surface, be provided with isolated gate in it, plate upper surface is provided with several elongated slots separately, be placed with the wiping bar in the elongated slot, described isolated gate height is provided with several through holes more than or equal to wiping the bar height between described elongated slot and the groove, the shell inner cavity of described base plate bottom is a dust suction chamber, described outer casing inner wall is fixed a bracing frame, and this bracing frame extends to dust suction chamber inside, on this bracing frame motor is installed, the motor rear end connects a charge power supply, charge power supply connects a charging plug by lead, and a side relative at the fan of shell is provided with through hole, and a screen pack is set on this through hole, be provided with opening at outer casing bottom, be stamped a dust suction chamber cap on it.

The utility model electric blackboard eraser, wherein said isolated gate is made for the pig palm fibre.

The utility model electric blackboard eraser, wherein said wiping bar is a wool felt.

The utility model electric blackboard eraser, wherein said base plate are that plastics are made.

The utility model electric blackboard eraser, wherein said elongated slot are two rectangular slots, and the base plate shape also is a rectangle.

After adopting such scheme, the utlity model has following advantage:

1, wipe the bar periphery at blackboard eraser one circle isolated gate is set, the height of isolated gate is larger than or equals to wipe the bar height, and like this when erasing the board, the dust that can not fly up because wiping not screen in the bar periphery and in the side influences teacher and classmate's health.

2, power supply is set to charge power supply, and is connected with plug, makes things convenient for the user to use at any time, and it is standby in time spent not plug to be inserted the external power supply jack charging, has improved the utilization rate of this electric blackboard eraser.

Description of drawings

Figure 1A is existing electric blackboard eraser structural representation;

Figure 1B is the A-A generalized section of Figure 1A;

Fig. 2 is the structure cross-sectional schematic of the utility model electric blackboard eraser;

Fig. 3 is the schematic top plan view of the utility model electric blackboard eraser;

Fig. 4 is the half sectional view of looking up of the utility model electric blackboard eraser.

The specific embodiment

The structure cross-sectional schematic of the utility model electric blackboard eraser as shown in Figure 2, it comprises shell 1, dust suction chamber 2, motor 3, fan 4, wipe bar 5, base plate 6, isolated gate 7, plug 8 and screen pack 9, shell 1 is fixed in base plate 6 bottoms, base plate 6 is made for plastics, base plate 6 upper surfaces are provided with two rectangular slots 61 separately, be placed with the wiping bar 5 that wool felt is done in the rectangular slot 61, in conjunction with shown in Figure 3, base plate 6 upper surface peripheries are provided with a circle groove 63, be plugged with the isolated gate 7 that the pig palm fibre is made in it, isolated gate 7 highly is slightly larger than wipes bar 5 height, be provided with several through holes 62 between the rectangular slot 61 of base plate 6 upper surfaces and the groove 63, the shell inner cavity of base plate 6 bottoms is a dust suction chamber 2, shell 1 inwall is fixed a bracing frame 21, this bracing frame 21 extends to dust suction chamber 2 inside, on this bracing frame 21 motor 3 is installed, fan 4 is installed on the motor 3, motor 3 rear ends connect a charge power supply, charge power supply switch 10 is stretched out by shell 1, charge power supply connects a charging plug 8 by lead, this plug 8 stretches out shell 1, on shell 1 and the relative side of position of fan offer a through hole, one screen pack 9 is set on this through hole, be provided with opening in shell 1 bottom, be stamped a dust suction chamber cap 22 on it.

The utility model in use, can directly press the charge power supply switch 10 that stretches out shell 1, dust collection drives fan 4 at dust suction chamber 2 built-in motors 3 and rotates, air is blown out by the screen pack 9 of shell 1 right side through hole, remaining dust is poured out by the dust suction chamber cap 22 of outer casing bottom, in time spent not, clicks charge power supply switch 10, in the time of need charging to blackboard eraser, directly plug 8 is inserted the external power supply hole and get final product.

Claims

1. electric blackboard eraser, comprise shell (1), dust suction chamber (2), motor (3), fan (4) and wiping bar (5), motor (3) is gone up fan (4) is installed, it is characterized in that: shell (1) is enclosed within the base plate bottom, be provided with a circle groove (63) around base plate (6) upper surface, be provided with isolated gate (7) in it, base plate (6) upper surface is provided with several elongated slots (61) separately, be placed with in the elongated slot (61) and wipe bar (5), described isolated gate (7) height is more than or equal to wiping bar (5) highly, be provided with several through holes (62) between described elongated slot (61) and the groove (63), the shell inner cavity of described base plate (6) bottom is dust suction chamber (2), described shell (1) inwall is fixed a bracing frame (21), this bracing frame (21) extends to dust suction chamber (2) inside, motor (3) is installed on this bracing frame (21), motor (3) rear end connects a charge power supply, charge power supply connects a charging plug (8) by lead, be provided with through hole (11) in the relative side of the fan of shell (1), one screen pack (9) is set on this through hole (11), be provided with opening in shell (1) bottom, be stamped a dust suction chamber cap (22) on it.

2. electric blackboard eraser according to claim 1 is characterized in that: described isolated gate (7) is made for the pig palm fibre.

3. electric blackboard eraser according to claim 2 is characterized in that: described wiping bar (5) is a wool felt.

4. electric blackboard eraser according to claim 3 is characterized in that: described base plate (6) is made for plastics.

5. electric blackboard eraser according to claim 4 is characterized in that: described elongated slot (61) is two rectangular slots, and base plate (6) shape also is a rectangle.