CN209552798U - A kind of automatic eraser device - Google Patents

Abstract

The utility model discloses an automatic blackboard eraser, which comprises a blackboard eraser movement mechanism, a blackboard eraser structure and a dust suction structure mounted on the blackboard eraser movement mechanism and acting on the blackboard body, and the blackboard eraser movement mechanism includes a horizontal assembly and a vertical assembly, the blackboard eraser structure includes a connection frame connected to the horizontal assembly, a circular wiper plate rotatably mounted on the connection frame and a micro motor that drives the circular wiper plate to rotate, the dust collector The structure includes a dustproof case sheathed on the outside of the circular wiping board and an air extractor installed under the dustproof case. The utility model is safe and environment-friendly, and the rotatable circular wiping board is hidden in a fully enclosed dust-proof case. Wiping is free of dust pollution and at the same time eliminates potential safety hazards caused by accidental contact with the human body, and has a good dust-absorbing effect; it is convenient to use, The blackboard is wiped automatically, and the dust box is detachable for easy cleaning and maintenance.

Description

An automatic blackboard eraser

technical field

The utility model belongs to the technical field of teaching equipment, in particular to an automatic blackboard eraser.

Background technique

The blackboard is an indispensable facility in teaching. It needs to be wiped clean before class. Nowadays, most blackboards are cleaned manually, which is time-consuming and laborious. It is difficult for most students to wipe the upper part of the blackboard, and it also wastes a lot of time to wipe the blackboard.

Chinese patent CN108725049A discloses a blackboard erasing device, which includes a mobile device, a blackboard eraser body, a blackboard body and a fixed seat. And the belt shaft realizes the movement of the motor to the blackboard eraser body, and uses the steering touch switch to switch the power switch button of the motor through collision to change the rotation direction of the motor and realize the reciprocating movement of the blackboard eraser. Automatic wiping saves time and effort. However, in this invention, the force exerted by the blackboard eraser body on the surface of the blackboard body is not provided, so the wiping effect is not good, and the invention is not provided with a dust recovery structure, which does not solve the problem of dust flying.

Utility model content

The purpose of the utility model is to provide an automatic blackboard erasing device, which can automatically wipe the blackboard, and can collect chalk dust, with good wiping effect and clean dust collection.

In order to achieve the above object, the technical solution of the utility model is: an automatic blackboard eraser device, including a blackboard eraser movement mechanism and a blackboard eraser structure and a dust suction structure installed on the blackboard eraser movement mechanism and acting on the blackboard body. The blackboard eraser movement mechanism includes a horizontal assembly and a vertical assembly, and the blackboard eraser structure includes a connecting frame connected to the horizontal assembly and a circular eraser rotatably mounted on the connecting frame and drives the circular eraser to rotate The dust-absorbing structure includes a dust-proof case sheathed outside the circular wiping plate and an air extractor installed under the dust-proof case.

As a preference, in the technical solution of the utility model, the vertical assembly includes two vertical guide bars fixed on both sides of the blackboard body, a rack and a vertical sliding structure, and the vertical sliding structure includes The vertical guide block on the vertical guide bar and the gear corresponding to the rack, the gear is driven by a vertical drive motor installed on the vertical guide block, the horizontal assembly and the vertical guide block Fixedly connected, the transverse assembly includes a transverse guide bar, a transverse guide block is slidingly sleeved on the transverse guide bar, and the blackboard eraser structure is fixedly installed on the transverse guide block through the connecting frame. The two ends of the transverse guide bar are also provided with pulleys, and belts are wound around the pulleys, and the belts are fixedly connected to the transverse guide block, and one of the pulleys is also connected with a transverse drive motor.

Preferably, the vertical assembly further includes a vertical installation frame, and the vertical guide bar and the rack are installed on the vertical installation frame, which facilitates installation and improves stability.

Preferably, the transverse assembly further includes a transverse mounting frame, on which the transverse guide bars, transverse drive motors and pulleys are installed, and the two ends of the transverse mounting frame are fixedly connected to the vertical guide blocks for easy installation , to improve stability.

Preferably, the movement mechanism of the blackboard eraser further includes a horizontal limit and a horizontal microswitch arranged at both ends of the horizontal guide bar, and the horizontal microswitch is electrically connected to the horizontal drive motor. When the blackboard eraser structure When moving to the lateral limit position, the lateral microswitch controls the lateral drive motor to change the direction of rotation to realize the lateral reciprocating motion of the blackboard eraser structure.

Preferably, the blackboard eraser movement mechanism further includes vertical limit switches and vertical microswitches arranged at both ends of the vertical guide bar, the vertical microswitches are electrically connected to the vertical drive motor, and when the When the blackboard eraser structure moves to the vertical limit position, the vertical micro switch controls the vertical drive motor to change the direction of rotation to realize the vertical reciprocating movement of the blackboard eraser structure.

Preferably, both the horizontal drive motor and the vertical drive motor are miniature geared motors, which have low noise, long service life, small volume, high power, and can be rotated frequently.

Preferably, at least one circular wiping plate is provided, which is driven by an independent micro motor, so that the wiping effect is good.

As a preference, the dustproof case is a boxed dustproof case, one side of the opening faces the blackboard body, and a dust collection port is provided below, the air extractor is installed at the dust collection port, and a The dust box with the mouth connected.

As a preference, the bottom of the dustproof case is streamlined downwards, the dust collection port is located at the bottom side of the dustproof case, and the air extractor includes a motor fixed on the dustproof case and a motor located on the dustproof case. The turbine inside the casing and close to the dust collection port, the turbine is fixedly connected with the rotating shaft of the motor, and the outer side of the turbine is provided with a volute fixed on the dustproof case and communicated with the dust collection port , the volute completely wraps the turbine, and the bottom of the volute is provided with a through dust suction port on the side away from the dust collection port. The turbine rotates under the drive of the motor to generate a small wind pressure, which will prevent The chalk dust in the dust case is sucked into the volute from the dust suction port, and then enters the dust collection box from the dust collection port, so the collection effect is good and the efficiency is high.

The utility model also includes a power supply, and the power supply is electrically connected to the vertical drive motor, the horizontal drive motor, the micro motor and the motor.

Preferably, the dust box is mounted on the dustproof case through a buckle structure, and the buckle structure includes an outwardly expanding buckle located on the side below the opening of the dust box and a The clamping head on the side opposite to the clamping foot at the opening, the end of the clamping head away from the dust collection box has an upward bend, and the end of the bent upper part away from the dust collection box has a slope inclined towards the dust collection box , when installing, firstly insert the clip feet into the dust collection port, and then press the clip head into the dust collection port to complete the snap connection. The clip structure is easy to assemble and disassemble, easy to clean the dust collection box, and is fixed and stable.

Preferably, a rubber sealing ring is provided at the opening to prevent chalk dust from overflowing.

Preferably, the rack is composed of multiple rack blocks, which is convenient for installation and maintenance, reduces maintenance costs, and can install a corresponding number of rack blocks according to the height of the blackboard body.

The operating principle of the utility model is: when the blackboard needs to be wiped, the vertical drive motor, the horizontal drive motor, the micro motor and the motor are started, and the micro motor drives the circular wiper to rotate to wipe the blackboard, and the dust to be wiped falls into the In the dustproof case, the dust suction structure sends the chalk dust in the dustproof case into the dust collection box through the dust collection port, and the horizontal drive motor drives the belt and the pulley to rotate, thereby driving the blackboard eraser structure in the transverse guide The movement on the bar, the vertical drive motor drives the gear to rotate, cooperates with the rack to realize the vertical movement of the horizontal guide bar and the blackboard eraser structure, through the vertical limit and vertical micro switch, the horizontal limit and the horizontal The micro switch cooperates with the miniature geared motor to finally realize the reciprocating motion of the blackboard eraser structure in the vertical direction and the horizontal direction, and realize the comprehensive wiping of the blackboard.

Blackboards with this automatic blackboard eraser:

The first type: the blackboard body and the blackboard eraser movement mechanism are installed on a movable blackboard support, wherein the blackboard body is fixed on the blackboard support by screws on its back, and the blackboard eraser movement mechanism The vertical mounting frame and the horizontal mounting frame are fixedly connected to the blackboard bracket through screws and nuts.

The bottom of the blackboard bracket is evenly provided with four telescopic support legs and four walking wheels. The telescopic support legs include a screw rod and a support pad positioned at the bottom end of the screw rod. The support pad can freely move around the central axis of the screw rod. Rotate, the bottom of the blackboard bracket is fixed with a screw nut corresponding to the screw rod, when it needs to move, turn the screw rod, the telescopic support feet shrink, and the support pad moves upward until it is off the ground. The walking wheels are in contact with the ground, and the blackboard support can be slightly pushed to move. After the movement is completed, the screw rod is rotated in reverse until the support pad touches the ground. When the ground is uneven, the heights of the four telescopic support feet can also be adjusted respectively.

Correspondingly, the power supply is a storage battery, which is convenient for mobile use and has a wide range of references.

The second type: the blackboard body and the blackboard eraser movement mechanism are installed on the wall, wherein the vertical installation frame and the horizontal installation frame in the blackboard eraser movement mechanism are fixed and installed on the wall by screws.

The beneficial effects of the utility model have:

1. Safety and environmental protection, the rotatable circular wiper board is hidden in a fully enclosed dustproof case, wiping without dust pollution while eliminating potential safety hazards caused by accidental contact with the human body;

2. Convenient, the blackboard is wiped automatically, and the dust box is detachable, which is convenient for cleaning and maintenance;

3. High efficiency. Compared with the traditional technology, the rotary wiping board has good wiping effect, high efficiency, and low installation accuracy requirements;

4. Strong applicability, the movable blackboard bracket is used with the battery, which can make the whole product flexibly suitable for indoor or outdoor;

5. The rack is assembled by a plurality of rack blocks, which can be adjusted according to the width of the blackboard and easy to install;

6. The movement of the blackboard eraser is driven by a miniature geared motor, which has low noise and will not affect the use.

Description of drawings

Fig. 1 is the front view of the utility model embodiment 1;

Fig. 2 is the structural representation of the blackboard eraser structure of the utility model embodiment 1;

Fig. 3 is a structural schematic diagram of the vertical assembly of Embodiment 1 of the utility model;

Fig. 4 is a structural schematic diagram of the horizontal assembly of Embodiment 1 of the present utility model;

Fig. 5 is a structural schematic diagram of a dust-absorbing structure turbine in Embodiment 1 of the present utility model;

Fig. 6 is a schematic structural view of the dust collecting box of Embodiment 1 of the present utility model;

Fig. 7 is a schematic structural view of the rack in Embodiment 1 of the present utility model;

Fig. 8 is a schematic structural view of the blackboard support in Embodiment 2 of the present utility model;

Fig. 9 is a structural schematic diagram of the volute of the dust suction structure in Embodiment 1 of the present utility model;

The items in the figure are: 1 blackboard body, 2 blackboard eraser structure, 3 connecting frame, 4 micro motor, 5 dustproof case, 6 air extractor, 7 vertical guide bar, 8 rack, 9 vertical guide block, 10 gear , 11 vertical drive motor, 12 horizontal guide bar, 13 horizontal guide block, 14 pulley, 15 belt, 16 horizontal drive motor, 17 vertical mounting frame, 18 horizontal mounting frame, 19 horizontal limit, 20 vertical limit, 21 dust collection port, 22 dust collection box, 23 motor, 24 turbine, 25 opening, 26 clamp foot, 27 clamp head, 28 bending, 29 slope, 30 sealing ring, 31 rack block, 32 blackboard bracket, 33 telescopic Support feet, 34 walking wheels, 35 screw mandrels, 36 support pads, 37 screw mandrel nuts, 38 volutes, 39 suction ports.

Detailed ways

The technical scheme of the utility model will be described in detail below in conjunction with the embodiments and the accompanying drawings. It should be noted that, in the embodiment of the present utility model, the fixed connection is connected through a screw hole, which is convenient for installation and disassembly.

Example 1

As shown in Fig. 1～2, a kind of automatic blackboard eraser device, comprise blackboard eraser movement mechanism and be installed on the blackboard eraser structure 2 that acts on blackboard body 1 on described blackboard eraser movement mechanism and be characterized in that: The blackboard eraser movement mechanism includes a horizontal assembly and a vertical assembly, and the blackboard eraser structure 2 includes a connecting frame 3 connected to the horizontal assembly and a circular eraser rotatably mounted on the connecting frame 3 and drives the circular The micro-motor 4 that the wiping board rotates, and the dust suction structure includes a dustproof case 5 that is sleeved on the outside of the circular wiping board and an air extractor 6 installed below the dustproof case 5 .

In the technical solution of this embodiment, as shown in Figures 3 to 4, the vertical assembly includes two vertical guide bars 7, a rack 8 and a vertical sliding structure fixed on both sides of the blackboard body. The vertical sliding structure includes a vertical guide block 9 sleeved on the vertical guide bar 7 and a gear 10 corresponding to the rack 8, and the gear 10 is formed by a vertical guide mounted on the vertical guide block 9. Driving motor 11 drives, and described transverse component is fixedly connected with described vertical guide block 9, and described transverse component comprises a transverse guide bar 12, and described transverse guide bar 12 is slidingly sleeved with transverse guide block 13, and described blackboard The wiping structure 2 is fixedly installed on the transverse guide block 13 through the connecting frame 3, and the two ends of the transverse guide bar 12 are also provided with a pulley 14, and the belt pulley is wound with a belt 15, and the belt 15 is fixedly connected to the The transverse guide block 13 is described, and a transverse drive motor 16 is connected to one of the pulleys 14 .

Further, the vertical assembly further includes a vertical installation frame 17, on which the vertical guide bar 7 and the rack 8 are installed, which facilitates installation and improves stability. The transverse assembly also includes a transverse mounting frame 18 on which the transverse guide bar 12, the transverse drive motor 16 and the pulley 14 are installed, and the two ends of the transverse mounting frame 18 are fixedly connected to the vertical guide block 9. Easy to install and improve stability.

As shown in Figure 1, the blackboard eraser movement mechanism also includes lateral limiters 19 and lateral microswitches (not shown in the figure) arranged at both ends of the lateral guide bar 12, and the lateral microswitches are connected to the horizontal microswitches. The horizontal drive motor 16 is electrically connected, and when the blackboard eraser structure moves to the horizontal limit 19, the horizontal micro switch controls the horizontal drive motor 16 to change the direction of rotation, so as to realize the horizontal reciprocation of the blackboard eraser structure 2 sports.

The blackboard eraser movement mechanism also includes a vertical limiter 20 and a vertical microswitch (not shown in the figure) arranged at both ends of the vertical guide bar 7, and the vertical microswitch is connected with the vertical drive The motor 11 is electrically connected, and when the blackboard eraser structure moves to the vertical limit position 20, the vertical micro switch controls the vertical drive motor 11 to change the direction of rotation to realize the vertical movement of the blackboard eraser structure 2. reciprocating motion.

In this embodiment, the horizontal drive motor 16 and the vertical drive motor 11 are miniature geared motors, which have low noise, long service life, small size, high power, and can be rotated frequently.

There is at least one circular wiping plate, preferably two in this embodiment, as shown in FIG. 2 , which is driven by an independent micro motor 4 and has a good wiping effect.

As shown in Figure 5, the dustproof case 5 is a boxed dustproof case, one side of its opening faces the blackboard body 1, and a dust collection port 21 is provided below, and the air extractor 6 is installed at the dust collection port 21, A dust collection box 22 communicating with the dust collection opening 21 is also provided.

Wherein, the bottom of the dustproof case 5 is streamlined downwards, the dust collecting port 21 is located at the bottom side of the dustproof case 5, and the air extractor 6 includes a motor 23 fixed on the dustproof case 5 and a The turbine 24 in the dustproof case 5 and close to the dust collection port 21 is fixedly connected with the rotating shaft of the motor 23, and the turbine 24 is fixed on the dustproof case 5 outside. A volute 38 communicated with the dust collection port 21, the volute 38 wraps the turbine 24, and the bottom of the volute 38 on the side away from the dust collection port 21 is provided with a through dust suction port 39, so The turbine 24 rotates under the drive of the motor 23 and generates a small wind pressure, sucks the chalk dust in the dustproof case 5 into the volute 38 from the dust suction port 39, and then enters from the dust collection port 21. The dust collecting box 22 has good collection effect and high efficiency.

In this embodiment, a power supply is also included, and the power supply is electrically connected to the vertical drive motor 11 , the horizontal drive motor 16 , the micro motor 4 and the motor 23 .

As shown in Figures 5 and 6, the dust collecting box 22 is installed on the dustproof case 5 through a snap-fit structure, and the snap-fit structure includes a side facing below the opening 25 of the dust collecting box 22. The outwardly expanded clip 26 and the clip 27 located on the side of the opening 25 opposite to the clip 26, the clip 27 has an upward bend 28 at the end away from the dust box 22, and the upper part of the bend 28 is The end far away from the dust collection box 22 has a slope 29 inclined towards the dust collection box 22. When installing, first insert the clip 26 into the dust collection port 21, and then press the clip 27 into the dust collection port 21, that is, The clamping can be completed, and the clamping structure is convenient to assemble and disassemble, which is convenient for cleaning the dust collecting box 22 and is fixed stably.

Further, the opening 25 is also provided with a rubber sealing ring 30 to prevent chalk dust from overflowing.

As shown in Figure 7, in this embodiment, the rack 8 is composed of a plurality of rack blocks 31, which is convenient for installation and maintenance, reduces maintenance costs, and can install a corresponding number of rack blocks 31 according to the height of the blackboard body 1 .

The operating principle of this embodiment is: when the blackboard needs to be wiped, start the vertical drive motor 11, the horizontal drive motor 16, the micro motor 4 and the motor 23, and the micro motor 4 drives the circular wiping board to rotate to wipe the blackboard. The wiped dust falls into the dustproof case 5, and the dust suction structure sends the chalk dust in the dustproof case 5 into the dust collection box 22 through the dust collection port 21, and the lateral drive motor 16 drives the belt 15 and The belt pulley 14 rotates, thereby driving the blackboard eraser structure 2 to move on the horizontal guide bar 12, and the vertical drive motor 11 drives the gear 10 to rotate, and cooperates with the rack 8 to realize the horizontal guide bar 12 and the blackboard eraser structure 2 in the vertical direction. Move, through the vertical limit 20 and the vertical micro switch, the horizontal limit 19 and the horizontal micro switch in conjunction with the miniature gear motor, finally realize the reciprocating motion of the blackboard eraser structure 2 in the vertical direction and the horizontal direction, and realize the blackboard full wipe.

Example 2

As shown in Figure 8, a kind of blackboard that comprises automatic blackboard eraser device: described blackboard body 1, blackboard eraser moving mechanism are installed on the movable blackboard support 32, and wherein, described blackboard body 1 is fixed by the screw on its back side On the blackboard support 32, the vertical installation frame 17 and the horizontal installation frame 18 in the blackboard eraser moving mechanism are fixedly connected to the blackboard support 32 by screws and nuts.

Wherein, the bottom of the blackboard support 32 is uniformly provided with four telescopic support legs 33 and four walking wheels 34, the telescopic support legs 33 include a screw rod 35 and a support pad 36 positioned at the bottom end of the screw rod 35, the support pad 36 Can freely rotate around the central axis of the screw mandrel 35, the bottom of the blackboard support 32 is fixed with a screw mandrel nut 37 corresponding to the screw mandrel 35, when it needs to move, turn the screw mandrel 35, the telescopic support legs 33 shrinks, and the support pad 36 moves upwards until it leaves the ground. At this time, the walking wheel 34 is in contact with the ground, and the blackboard support 32 is gently pushed to realize the movement. After the movement is completed, the screw rod 35 is reversely rotated, until the support pad 36 touches the ground. When the ground is uneven, the heights of the four telescopic support feet 33 can also be adjusted respectively.

In this embodiment, the power source is a storage battery, which is convenient for mobile use and has a wide range of references.

Example 3

A blackboard including an automatic blackboard eraser device: the blackboard body and the blackboard eraser movement mechanism are installed on the wall, wherein the vertical mounting frame and the horizontal mounting frame in the blackboard eraser movement mechanism are fixed on the blackboard by screws above the wall.

Claims (8)

1. a kind of automatic eraser device, including blackboard eraser movement mechanism and the effect being mounted on the blackboard eraser movement mechanism Wiping blackboard structure (2) and dust absorbing structure in blackboard body (1), it is characterised in that: the blackboard eraser movement mechanism includes cross To component and vertical component, the wiping blackboard structure (2) includes the connection frame (3) connecting with the cross-member and rotatable peace The micromotor (4) of round wiping board and the drive round wiping board rotation on connection frame (3), the dust absorbing structure packet Include the air exhauster (6) below the dustproof shell (5) being set in outside the round wiping board and the installation dustproof shell (5).

2. a kind of automatic eraser device according to claim 1, it is characterised in that: the vertical component includes two solid It is scheduled on the vertical conducting bar (7) of the blackboard body (1) two sides, rack gear (8) and slides vertically structure, it is described to slide vertically structure packet Include the vertical guide block (9) and gear corresponding with the rack gear (8) (10) being slidably mounted on the vertical conducting bar (7), institute Gear (10) is stated to be driven by the vertical driving motor (11) being mounted on the vertical guide block (9).

3. a kind of automatic eraser device according to claim 2, it is characterised in that: the cross-member includes being mounted on A lateral conducting bar (12) between vertical component, sliding sleeve is connected to the transverse direction connecting with connection frame on the transverse direction conducting bar (12) Guide block (13), described lateral conducting bar (12) both ends of wiping blackboard structure (2) are additionally provided with belt pulley (14), the belt pulley (14) around Equipped with belt (15), the belt (15) is fixedly connected with the lateral guide block (13), and the one of of the belt pulley (14) connects It is connected to horizontal drive motor (16).

4. a kind of automatic eraser device according to claim 3, it is characterised in that: the vertical component further includes vertical Mounting rack (17), the vertical conducting bar (7) and rack gear (8) are mounted on the vertical mounting rack (17), and the cross-member is also Including being transversely mounted frame (18), the transverse direction conducting bar (12), horizontal drive motor (16) and belt pulley (14) are mounted on the cross To on mounting rack (18), described frame (18) both ends that are transversely mounted are fixedly connected with the vertical guide block (9).

5. a kind of automatic eraser device according to claim 3 or 4, it is characterised in that: the blackboard eraser movement mechanism It further include that setting is erected in the cross spacing (19) at described lateral conducting bar (12) both ends and lateral microswitch and setting described To the vertical spacing (20) and vertical microswitch at conducting bar (7) both ends, the transverse direction microswitch and the horizontal drive motor (16) it is electrically connected, the vertical microswitch is electrically connected with the vertical driving motor (11).

6. a kind of automatic eraser device according to claim 1, it is characterised in that: be equipped with below the dustproof shell (5) Dust collecting opening (21), the installation air exhauster (6) at the dust collecting opening (21), and be provided with and be connected with the dust collecting opening (21) Dust-collecting box (22).

7. a kind of automatic eraser device according to claim 6, it is characterised in that: dustproof shell (5) bottom be to Under it is curved streamlined, the dust collecting opening (21) is located at its bottom end side, and the air exhauster (6) includes motor (23) and is located at institute State the turbine (24) in dustproof shell (5) and close to the dust collecting opening (21), the shaft of the turbine (24) and the motor (23) It is fixedly connected, is provided on the outside of the turbine (24) and is fixed on being connected on the dustproof shell (5) with the dust collecting opening (21) Volute (38), the volute (38) wraps up the turbine (24), and the volute (38) is at the bottom far from dust collecting opening (21) side Portion is provided with the suction inlet (39) of perforation.

8. a kind of automatic eraser device according to claim 7, it is characterised in that: the dust-collecting box (22) passes through buckle Structure is mounted on the dustproof shell (5), and the buckle structure includes below the opening (25) of the dust-collecting box (22) The card base (26) of side expanded outwardly and the clamp (27) for being located at the opening (25) opposite card base (26) side, the card Head (27) has upward bending (28) far from the dust-collecting box (22) one end, and bending (28) top is far from the dust-collecting box (22) one end has to the dust-collecting box (22) inclined inclined-plane (29).