CN213108795U

CN213108795U - Blackboard with self-cleaning function

Info

Publication number: CN213108795U
Application number: CN202021596082.8U
Authority: CN
Inventors: 薛兆隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-05-04
Anticipated expiration: 2030-08-05

Abstract

The utility model provides a blackboard with self-cleaning function belongs to blackboard technical field, wipe blackboard mechanism including first box and automation. The front end of the first box body slides to form a second box body, the automatic blackboard cleaning mechanism comprises a first motor, a first lead screw, a first transmission nut, a lifting plate and a blackboard cleaning assembly, the first motor is fixed inside the second box body, the first lead screw is fixedly connected with the first motor, the first transmission nut is in transmission connection with the first lead screw, the first transmission nut is embedded in the lifting plate, and the lifting plate is fixedly connected with the blackboard cleaning assembly. The blackboard erasing component comprises a third box body, a connecting plate, a connecting rod, a fixing plate and a blackboard eraser, the third box body is fixedly connected with the lifting plate, one end of the connecting rod is fixedly connected with the connecting plate, the other end of the connecting rod is fixedly connected with the fixing plate, and the blackboard eraser is fixed on the fixing plate. The blackboard eraser has the advantages of automatically erasing the blackboard, saving labor, collecting dust and reducing pollution to the surrounding environment, along with high working efficiency.

Description

Blackboard with self-cleaning function

Technical Field

The utility model relates to a blackboard technical field particularly, relates to a blackboard with self-cleaning function.

Background

The teaching aid is a general term of various instruments used for enabling students to visually and vividly understand teaching contents and instruments used by teachers during teaching. The teaching aid can improve the learning interest of students, enrich perceptual knowledge, help to form clear concepts, develop the observation ability and thinking ability of students, help teachers to teach knowledge at the same time, lighten the work burden of teachers. The blackboard is a commonly used teaching aid, and is widely applied to schools due to the characteristic that the blackboard can be repeatedly written, so that the blackboard is one of essential teaching aids for schools. The blackboard often need erase the chalk word above writing after having written, because a classroom needs a lot of knowledge of professor, this blackboard that just needs often to erase, mostly manual chalk word on wiping the blackboard at present, both wasted valuable classroom time, teacher's work load has been increased again, can produce a large amount of dusts simultaneously when erasing the blackboard, the dust can give off in the classroom, pollute the environment in the classroom, bring harm to teacher and student's safety.

SUMMERY OF THE UTILITY MODEL

In order to compensate for above not enough, the utility model provides a blackboard with self-cleaning function aims at improving present school and needs the manual chalk word of cleaning on the blackboard, has both wasted valuable classroom time, has increased teacher's work load again, can produce a large amount of dusts simultaneously when erasing the blackboard, and the dust can give off in the classroom, pollutes the environment in the classroom, brings the problem of harm to teacher and student's safety.

The utility model discloses a realize like this: a blackboard with an automatic cleaning function comprises a first box body, wherein a partition plate is fixed in the middle of the inside of the first box body, and the front end of the first box body is connected with a second box body in a sliding manner;

the automatic blackboard erasing mechanism comprises a first motor, a first screw rod, a first transmission nut, a lifting plate and a blackboard erasing assembly, wherein the first motor is fixed at the bottom end inside the second box body, the lower end of the first screw rod is fixedly connected with the first motor, the upper end of the first screw rod is rotatably connected with the top end of the second box body, the first transmission nut is in transmission connection with the first screw rod, the first transmission nut is embedded in the middle of the lifting plate, one side of the lifting plate is fixedly connected with the blackboard erasing assembly, and the blackboard erasing assembly is positioned on the outer side of the second box body;

the blackboard erasing component comprises a third box body, a connecting plate, a connecting rod, a fixing plate and a blackboard eraser, one side of the third box body is fixedly connected with the lifting plate, the connecting plate is located in the third box body, one end of the connecting rod is fixedly connected with the connecting plate, the other end of the connecting rod is fixedly connected with the fixing plate, the fixing plate is located on the outer side of the third box body, and the blackboard eraser is fixed at one end, far away from the connecting rod, of the fixing plate.

The utility model discloses an in an embodiment, the connecting plate is kept away from the one end of connecting rod is contradicted and is had the spring, the spring is kept away from inside the spring locating pin that has cup jointed of one end of connecting plate, the spring locating pin is fixed inside one side of keeping away from the blackboard eraser of third box.

The utility model discloses an in one embodiment, the inside bottom both sides of second box are fixed with first stopper, highly being higher than of first stopper the height of first motor.

In an embodiment of the present invention, the two sides of the lifting plate are slidably connected to first guide rods, and the first guide rods are fixed inside the second box.

The utility model discloses an in the embodiment, the inside both sides of first box all are provided with blackboard telescopic machanism, blackboard telescopic machanism includes mounting panel, electric telescopic handle and blackboard, the mounting panel both ends are fixed respectively the inner wall of first box with on the baffle, electric telescopic handle fixes in the middle of the rear side of mounting panel, the blackboard is fixed electric telescopic handle's tailpiece of the piston rod portion.

The utility model discloses an in an embodiment, the rear end both sides of blackboard are fixed with the second guide bar, the second guide bar runs through the mounting panel, the second guide bar is kept away from the one end fixing of blackboard has the second stopper, the second stopper is located the rear side of mounting panel.

The utility model discloses an in one embodiment, the bottom of second box with be provided with translation mechanism between the first box, translation mechanism includes fourth box, second motor, second lead screw, backup pad, second drive nut and movable block, the fourth box is fixed the downside of first box, the second motor is fixed the one end outside of fourth box, second lead screw one end with the output shaft fixed connection of second motor, the other end with the backup pad rotates to be connected, the backup pad is fixed in the middle of the inside of fourth box, second drive nut with second lead screw transmission is connected, second drive nut inlays inside the movable block, the upper end of movable block with bottom one side fixed connection of second box.

The utility model discloses an in one embodiment, the outside top of fourth box with the upper end downside of first box all is fixed with the slider, the upper and lower both ends of second box all seted up with the spout of slider looks adaptation, the slider is in slide in the spout.

In an embodiment of the present invention, the front end underside of the partition board is provided with an avoiding opening.

In an embodiment of the present invention, a recycling bin is inserted into a lower side of a front end of the first box, and a handle is fixed in the middle of an outer side of the recycling bin.

The utility model has the advantages that: the utility model discloses a be provided with the fixed plate on the third box, install the blackboard eraser on the fixed plate, blackboard in blackboard eraser and the first box in close contact with, it is rotatory to drive first lead screw through first motor, the first drive nut of first lead screw drive is along first lead screw up-and-down motion, and then first drive nut drives the lifter plate along first guide bar up-and-down motion, and then the lifter plate moves blackboard upper-and-down motion, get into the blackboard eraser and hug closely blackboard up-and-down motion, and then realize the automatic erasing cleanness of chalk word on the blackboard, clear dust falls into the inside bottom of first box, realize collecting, the outside is wafted to the dust that significantly reduces, automatic erasing, work efficiency is high, save the labour, realize the collection of dust, reduce the pollution to the surrounding environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic axial view of an overall structure provided by an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a first box according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of an automatic blackboard erasing mechanism according to an embodiment of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at A;

fig. 5 is a schematic structural view of a blackboard erasing assembly provided by an embodiment of the present invention;

fig. 6 is a schematic structural view of a blackboard stretching mechanism provided by an embodiment of the present invention;

fig. 7 is a schematic structural view of a translation mechanism according to an embodiment of the present invention;

fig. 8 is an enlarged view of fig. 7 at B.

In the figure: 100-a first box; 110-a second box; 120-a separator; 121-avoidance port; 130-a recovery tank; 131-a handle; 200-automatic blackboard erasing mechanism; 210-a first motor; 220-a first lead screw; 230-a first drive nut; 240-lifting plate; 250-a blackout panel assembly; 251-a third box; 252-a connection plate; 253-connecting rods; 254-fixing the plate; 255-a blackboard eraser; 256-spring; 257-spring set pins; 260-a first stopper; 270-a first guide bar; 300-blackboard telescoping mechanism; 310-a mounting plate; 311-a second guide bar; 312-a second stopper; 320-an electric telescopic rod; 330-blackboard; 400-a translation mechanism; 410-a fourth box; 420-a second motor; 430-a second lead screw; 440-a support plate; 450-a second drive nut; 460-a moving block; 470-a slide block; 480-chute.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a blackboard with self-cleaning function, including first box 100, be fixed with baffle 120 in the middle of the inside of first box 100, the front end downside of baffle 120 has been seted up and has been dodged mouthful 121, prevent to wipe blackboard subassembly 250 and hit baffle 120 when transposing on first box 100, play dodging, the guard action, the front end sliding connection of first box 100 has second box 110, it has collection box 130 to peg graft to the front end downside of first box 100, be fixed with handle 131 in the middle of the outside of collection box 130, make the dust of erasing work production fall into collection box 130 in, convenient centralized processing, handle 131 conveniently pulls out with hand collection box 130.

Referring to fig. 3 and 4, the automatic blackboard erasing mechanism 200 includes a first motor 210, a first lead screw 220, a first transmission nut 230, a lifting plate 240 and a blackboard erasing assembly 250, the first motor 210 is fixed at the bottom end of the inside of the second box 110, the lower end of the first lead screw 220 is fixedly connected with the first motor 210, the upper end of the first lead screw is rotatably connected with the top end of the second box 110, the first transmission nut 230 is connected with the first lead screw 220 in a transmission manner, the first transmission nut 230 is embedded in the middle of the lifting plate 240, one side of the lifting plate 240 is fixedly connected with the blackboard erasing assembly 250, and the blackboard erasing assembly 250 is located at the outer side of the second box 110, so as to achieve the up-and-down movement of the blackboard erasing assembly 250 and achieve the cleaning operation of the whole blackboard 330.

Referring to fig. 5, the blackboard erasing assembly 250 includes a third box 251, a connection plate 252, a connection rod 253, a fixing plate 254 and a blackboard eraser 255, one side of the third box 251 is fixedly connected to the lifting plate 240, the connection plate 252 is located inside the third box 251, one end of the connection rod 253 is fixedly connected to the connection plate 252, the other end of the connection rod 253 is fixedly connected to the fixing plate 254, the fixing plate 254 is located outside the third box 251, the blackboard eraser 255 is fixed to one end of the fixing plate 254 away from the connection rod 253, one end of the connection plate 252 away from the connection rod 253 abuts against a spring 256, so that the blackboard eraser 255 is in close contact with the blackboard 330 under the elastic force of the spring 256, the quality of erasing chalk characters on the blackboard 330 by the blackboard eraser 255 is improved, a spring positioning pin 257 is sleeved inside one end of the spring 256 away from the connection plate 252, the spring positioning pin 257 is fixed, influence the uniformity of elasticity and play a role in limiting.

Please refer to fig. 3, in an embodiment of the present invention, first stoppers 260 are fixed on two sides of the bottom of the second box 110, the height of the first stoppers 260 is higher than that of the first motor 210, so as to prevent the lifting plate 240 from colliding with the first motor 210 during the downward movement, thereby playing a role in limiting and protecting, the two sides of the lifting plate 240 are slidably connected with first guide rods 270, the first guide rods 270 are fixed inside the second box 110, and the lifting plate 240 is guided during the upward and downward movement.

Referring to fig. 6, in an embodiment of the present invention, two blackboard stretching mechanisms 300 are disposed on two sides of the interior of the first box 100, each blackboard stretching mechanism 300 includes a mounting plate 310, an electric telescopic rod 320 and a blackboard 330, two ends of the mounting plate 310 are respectively fixed on the inner wall of the first box 100 and the partition plate 120, the electric telescopic rod 320 is fixed in the middle of the rear side of the mounting plate 310, the blackboard 330 is fixed at the end of the piston rod of the electric telescopic rod 320, so that two groups of blackboards 330 alternately extend out and retract into the first box 100, it is ensured that the blackboard 330 can continue teaching while clearing chalk characters, time is saved, teaching efficiency is improved, second guide rods 311 are fixed on two sides of the rear end of the blackboard 330, guide the blackboard 330 to move back and forth, the second guide rods 311 penetrate through the mounting plate 310, and a second limiting block 312 is fixed at the end of the second guide rods 311 far, the second stopper 312 is located at the rear side of the mounting plate 310 to prevent the second guide rod 311 from sliding out of the mounting plate 310 when moving forward, so as to perform the functions of limiting and protecting.

Referring to fig. 7 and 8, in an embodiment of the present invention, a translation mechanism 400 is disposed between the bottom end of the second box 110 and the first box 100, the translation mechanism 400 includes a fourth box 410, a second motor 420, a second lead screw 430, a support plate 440, a second transmission nut 450 and a moving block 460, the fourth box 410 is fixed at the lower side of the first box 100, the second motor 420 is fixed at the outer side of one end of the fourth box 410, one end of the second lead screw 430 is fixedly connected to an output shaft of the second motor 420, the other end is rotatably connected to the support plate 440, the support plate 440 is fixed at the middle inside of the fourth box 410, the second transmission nut 450 is connected to the second lead screw 430 in a transmission manner, the second transmission nut 450 is embedded in the moving block 460, the upper end of the moving block 460 is fixedly connected to one side of the bottom end of the second box 110, so as to enable the second box 110 to move within the first box 100, and further to alternately clean the, the working efficiency is improved.

Referring to fig. 8, in an embodiment of the present invention, the sliding blocks 470 are fixed on the top of the outer side of the fourth box 410 and the lower side of the upper end of the first box 100, the sliding grooves 480 matching with the sliding blocks 470 are formed at the upper and lower ends of the second box 110, and the sliding blocks 470 slide in the sliding grooves 480, so as to reduce the friction between the second box 110 and the first box 100 during sliding and save energy.

The working principle is as follows: when the blackboard 330 is full of characters and needs to be erased, the piston rod of the electric telescopic rod 320 drives the blackboard 330 full of characters to move backwards until reaching the inside of the first box 100, so as to retract the blackboard 330;

then, the second motor 420 is started, the second motor 420 drives the second lead screw 430 to rotate, the second lead screw 430 drives the second transmission nut 450 to move forward along the second lead screw 430, the second transmission nut 450 drives the moving block 460 to move forward, the moving block 460 drives the second box body 110 to slide forward along the sliding groove 480, and the black wiping plate assembly 250 on the second box body 110 penetrates through the partition plate 120 through the avoidance port 121 on the lower side of the partition plate 120 until the second box body 110 reaches the other side of the first box body 100 and is positioned right in front of the retracted black wiping plate 330;

the connecting plate 252 is pushed to move forwards under the action of the elastic force of the spring 256, the connecting plate 252 enters the connecting plate 252 and pushes the fixing plate 254 forwards through the connecting rod 253, and then the fixing plate 254 drives the blackboard eraser 255 to move forwards until the blackboard eraser 255 is tightly contacted with the blackboard 330 retracted into the first box 100;

then, the first motor 210 is started, the first motor 210 drives the first screw rod 220 to rotate, the first screw rod 220 drives the first transmission nut 230 to slide up and down along the first screw rod 220, the first transmission nut 230 drives the lifting plate 240 to slide up and down in the second box body 110 along the first guide rod 270, the lifting plate 240 drives the third box body 251 to move up and down, the third box body 251 drives the blackboard eraser 255 to move up and down, the blackboard eraser 255 moves up and down relative to the blackboard 330, erasing of chalk characters on the blackboard 330 is achieved, and dust generated by erasing falls into the recovery box 130 below to achieve collection;

when the chalk characters are erased, the piston rod of the electric telescopic rod 320 on the other side of the first box 100 pushes the blackboard 330 which is not written forward to move forward until the blackboard 330 extends out of the first box 100 and is parallel to and level with the outer side of the second box 110 to stop moving, a teacher can continue teaching work while cleaning the other blackboard 330, time is saved, and working efficiency is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The blackboard with the automatic cleaning function is characterized by comprising a first box body (100), wherein a partition plate (120) is fixed in the middle of the inside of the first box body (100), and the front end of the first box body (100) is connected with a second box body (110) in a sliding manner;

the automatic blackboard erasing mechanism (200) comprises a first motor (210), a first screw rod (220), a first transmission nut (230), a lifting plate (240) and a blackboard erasing component (250), wherein the first motor (210) is fixed at the bottom end inside the second box body (110), the lower end of the first screw rod (220) is fixedly connected with the first motor (210), the upper end of the first screw rod is rotatably connected with the top end of the second box body (110), the first transmission nut (230) is in transmission connection with the first screw rod (220), the first transmission nut (230) is embedded in the middle of the lifting plate (240), one side of the lifting plate (240) is fixedly connected with the blackboard erasing component (250), and the blackboard erasing component (250) is positioned outside the second box body (110);

the blackboard erasing component (250) comprises a third box body (251), a connecting plate (252), a connecting rod (253), a fixing plate (254) and a blackboard eraser (255), one side of the third box body (251) is fixedly connected with the lifting plate (240), the connecting plate (252) is located inside the third box body (251), one end of the connecting rod (253) is fixedly connected with the connecting plate (252), the other end of the connecting rod is fixedly connected with the fixing plate (254), the fixing plate (254) is located on the outer side of the third box body (251), and the blackboard eraser (255) is fixed at one end, away from the connecting rod (253), of the fixing plate (254).

2. The blackboard with the automatic cleaning function according to claim 1, wherein one end of the connecting plate (252) far away from the connecting rod (253) is abutted with a spring (256), a spring positioning pin (257) is sleeved inside one end of the spring (256) far away from the connecting plate (252), and the spring positioning pin (257) is fixed on one side of the inside of the third box body (251) far away from the blackboard eraser (255).

3. The blackboard with the automatic cleaning function according to claim 1, wherein first limit blocks (260) are fixed on two sides of the bottom end inside the second box body (110), and the height of the first limit blocks (260) is higher than that of the first motor (210).

4. The blackboard having a self-cleaning function according to claim 1, wherein a first guide bar (270) is slidably connected to both sides of the lifting plate (240), and the first guide bar (270) is fixed inside the second casing (110).

5. The blackboard with the automatic cleaning function according to claim 1, wherein the blackboard telescopic mechanisms (300) are arranged on both sides of the inside of the first box body (100), each blackboard telescopic mechanism (300) comprises a mounting plate (310), an electric telescopic rod (320) and a blackboard (330), the two ends of the mounting plate (310) are fixed to the inner wall of the first box body (100) and the partition plate (120), each electric telescopic rod (320) is fixed to the middle of the rear side of the mounting plate (310), and each blackboard (330) is fixed to the end portion of the piston rod of each electric telescopic rod (320).

6. The blackboard with the automatic cleaning function according to claim 5, wherein a second guide rod (311) is fixed on two sides of the rear end of the blackboard (330), the second guide rod (311) penetrates through the mounting plate (310), a second limiting block (312) is fixed on one end of the second guide rod (311) far away from the blackboard (330), and the second limiting block (312) is located on the rear side of the mounting plate (310).

7. The blackboard with the function of automatic cleaning according to claim 1, wherein a translation mechanism (400) is arranged between the bottom end of the second box body (110) and the first box body (100), the translation mechanism (400) comprises a fourth box body (410), a second motor (420), a second lead screw (430), a support plate (440), a second transmission nut (450) and a moving block (460), the fourth box body (410) is fixed at the lower side of the first box body (100), the second motor (420) is fixed at the outer side of one end of the fourth box body (410), one end of the second lead screw (430) is fixedly connected with the output shaft of the second motor (420), the other end of the second lead screw is rotatably connected with the support plate (440), the support plate (440) is fixed in the middle of the inside of the fourth box body (410), and the second transmission nut (450) is in transmission connection with the second lead screw (430), the second transmission nut (450) is embedded in the moving block (460), and the upper end of the moving block (460) is fixedly connected with one side of the bottom end of the second box body (110).

8. The blackboard with the function of automatic cleaning according to claim 7, wherein sliding blocks (470) are fixed on the top of the outer side of the fourth box body (410) and the lower side of the upper end of the first box body (100), sliding grooves (480) matched with the sliding blocks (470) are formed in the upper end and the lower end of the second box body (110), and the sliding blocks (470) slide in the sliding grooves (480).

9. The blackboard with the function of automatic cleaning according to claim 1, characterized in that the lower side of the front end of the partition board (120) is provided with an avoiding opening (121).

10. The blackboard with the function of automatic cleaning according to claim 1, characterized in that the lower side of the front end of the first box body (100) is inserted with a recovery box (130), and the middle of the outer side of the recovery box (130) is fixed with a handle (131).