CN209756558U

CN209756558U - Blackboard

Info

Publication number: CN209756558U
Application number: CN201822244422.XU
Authority: CN
Inventors: 刘宇轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2019-12-10
Anticipated expiration: 2028-12-28

Abstract

The utility model relates to a teaching aid field discloses a blackboard, the blackboard includes: a first blackboard body (1); the second blackboard body (2), the said second blackboard body (2) is opposite to said first blackboard body (1); the transmission structure (3) is used for driving the first blackboard body (1) and the second blackboard body (2) to move oppositely; a driver (4), the driver (4) being for driving the transmission structure (3). The utility model discloses an embodiment provides a blackboard is provided with relative first blackboard body and the second blackboard body that sets up, is used for driving first blackboard body and second blackboard body phase displacement through driver drive transmission structure to replaced teacher's manual push-and-pull, be favorable to improving teacher's teaching efficiency.

Description

Blackboard

Technical Field

The utility model relates to a teaching aid field specifically relates to blackboard.

Background

the blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, is hard, and is mainly used for teaching. The blackboard usually has two structural forms of a fixed blackboard and a push-pull blackboard. The existing push-pull type blackboard is usually pushed away by a teacher manually, and then a blank blackboard is pulled to write next step, so that the use is troublesome, and the teaching efficiency of the teacher is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the plug-type blackboard that prior art exists needs the manual push-and-pull of teacher, provide a blackboard, this blackboard is provided with the relative first blackboard body and the second blackboard body that sets up, is used for driving first blackboard body and second blackboard body phase displacement through driver drive transmission structure to replaced teacher's manual push-and-pull, be favorable to improving teacher's teaching efficiency.

In order to achieve the above object, an embodiment of the present invention provides a blackboard, including:

a first blackplate body;

the second blackboard body is arranged opposite to the first blackboard body;

The transmission structure is used for driving the first blackboard body and the second blackboard body to move oppositely;

A driver for driving the transmission structure.

preferably, the transmission structure includes:

The driving shaft is connected with the driver;

The first transmission gear is arranged on the driving shaft;

The first gear rack is arranged on the first blackboard body and meshed with the first transmission gear;

And the second rack is arranged on the second blackboard body and meshed with the first transmission gear.

preferably, the blackboard further comprises a cleaning structure for cleaning the first blackboard body and the second blackboard body, and the cleaning structure for cleaning the first blackboard body is arranged on the driving shaft.

Preferably, the blackboard further comprises a driven shaft, and the cleaning structure for cleaning the second blackboard body is arranged on the driven shaft.

preferably, the driving shaft is further provided with a second transmission gear, and the driven shaft is provided with a third transmission gear meshed with the second transmission gear.

Preferably, the cleaning structure includes a main body having a plurality of cavities, and a plurality of cleaning parts detachably disposed in the cavities.

preferably, the cleaning part includes any one of sponge, gauze, and foam.

Preferably, the driver comprises a servo motor or a stepper motor.

through the technical scheme, the utility model discloses an embodiment provides a blackboard is provided with relative first blackboard body and the second blackboard body that sets up, is used for driving first blackboard body and second blackboard body phase displacement through driver drive transmission structure to replaced teacher's manual push-and-pull, be favorable to improving teacher's teaching efficiency.

Drawings

Fig. 1 is a front view of a blackboard provided according to an embodiment of the present invention;

Fig. 2 is a perspective view of a blackboard provided according to an embodiment of the present invention;

Figure 3 is a schematic view of a transmission structure of a blackboard provided according to an embodiment of the present invention;

Fig. 4 is a schematic view of a cleaning structure of a blackboard according to an embodiment of the present invention.

description of the reference numerals

1 first blackboard body 2 second blackboard body

3 transmission structure 4 driver

5 sweeping structure 6 driven shaft

7 second transmission gear 8 third transmission gear

30 driving shaft 31 first transmission gear

32 first rack 33 second rack

50 cleaning part of main body 51

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

fig. 1 shows a front view of a blackboard provided according to an embodiment of the present invention, and fig. 2 shows a perspective view of a blackboard provided according to an embodiment of the present invention. The utility model discloses an embodiment provides a blackboard, as shown in figure 1 or figure 2, this blackboard can include:

A first blackboard body 1;

a second blackboard body 2, wherein the second blackboard body 2 can be arranged opposite to the first blackboard body 1;

The transmission structure 3 can be used for driving the first blackboard body 1 and the second blackboard body 2 to move oppositely;

A drive 4, the drive 4 may be used for driving the transmission structure 3.

The utility model discloses an embodiment provides a blackboard is provided with relative first blackboard body 1 and the second blackboard body 2 that sets up, is used for driving first blackboard body 1 and the second blackboard body 2 phase shift through 4 drive transmission structures 3 of driver to replaced teacher's manual push-and-pull, be favorable to improving teacher's teaching efficiency.

Fig. 3 shows a schematic view of a transmission structure of a blackboard according to an embodiment of the present invention. The transmission structure of the blackboard body can have various suitable structural forms, for example, a belt pulley transmission mode is utilized to drive the first blackboard body 1 and the second blackboard body 2 to move towards each other. For another example, in an embodiment of the present invention, as shown in fig. 3, the transmission structure 3 of the blackboard may include:

A drive shaft 30, the drive shaft 30 being connectable to the drive 4;

A first transmission gear 31, the first transmission gear 31 may be provided on the driving shaft 30;

a first rack gear 32, wherein the first rack gear 32 may be disposed on the first blackboard body 1, and the first rack gear 32 may be engaged with the first transmission gear 31;

A second rack gear 33, the second rack gear 33 may be disposed on the second blackboard body 2, and the second rack gear 33 may be engaged with the first transmission gear 31.

As shown in fig. 3, the first rack gear 32 and the second rack gear 33 are respectively disposed on the first blackboard body 1 and the second blackboard body 2 and respectively engaged with two sides of the first transmission gear 31, and it can be understood by those skilled in the art that when the driving shaft 30 is driven by the driver 4 to rotate, the first transmission gear 31 respectively drives the first rack gear 32 and the second rack gear 33, so that the first blackboard body 1 and the second blackboard body 2 move towards each other. Specifically, when the driver 4 drives the driving shaft 30 to rotate forward, the first transmission gear 31 will drive the first rack 32 and the first blackboard body 1 to move leftward, and drive the second rack 33 and the second blackboard body 2 to move rightward; when the driver 4 drives the driving shaft 30 to rotate reversely, the first transmission gear 31 will drive the first rack 32 and the first blackboard body 1 to move leftwards, and drive the second rack 33 and the second blackboard body 2 to move rightwards.

as shown in fig. 3, the first transmission gear 31, the first rack gear 32 and the second rack gear 33 of the transmission structure 3 may be provided in two. Wherein, two first racks 32 set up respectively in the upside and the downside of first blackboard body 1, and two second racks 33 set up respectively in the upside and the downside of second blackboard body 2, and a pair of first rack 32 and second rack 33 are engaged with respectively to two first drive gears 31. By such an arrangement, the transmission efficiency and stability of the transmission structure 3 can be improved.

in the embodiment of the present invention, as shown in fig. 1, the blackboard may further include a cleaning structure 5 for cleaning the first blackboard body 1 and the second blackboard body 2. Wherein, a cleaning structure 5 for cleaning the first blackboard body 1 can be arranged on the driving shaft 30.

Further, the blackboard may further include a driven shaft 6, and a cleaning structure 5 for cleaning the second blackboard body 2 may be provided on the driven shaft 6.

Specifically, the driving shaft 30 may be further provided with a second transmission gear 7, and the driven shaft 6 may be provided with a third transmission gear 8 engaged with the second transmission gear 7. When the driver 4 drives the driving shaft 30 to rotate, the sweeping structure 5 positioned on the driving shaft 30 can be driven to rotate to sweep the first blackboard body 1; the driving shaft 30 drives the driven shaft 6 to rotate through the engagement between the second transmission gear 7 and the third transmission gear 8, and then drives the cleaning structure 5 located on the driven shaft 6 to rotate so as to clean the second blackboard body 2.

The utility model discloses an embodiment provides a first blackboard body 1 and second blackboard body 2 of blackboard and be used for cleaning the structure 5 that cleans of first blackboard body 1 and the structure 5 that cleans that is used for cleaning second blackboard body 2 can realize the synchronization linkage. For example, after first blackboard body 1 is full, drive first blackboard body 1 and second blackboard body 2 through rotating-structure 3 and in the time of removing in opposite directions, two clean structure 5 and can clean first blackboard body 1 of writing full for the teacher need not manually clean the blackboard, is favorable to further improving teacher's teaching efficiency. Moreover, after the second blackboard body 2 is full, the first blackboard body 1 and the second blackboard body 2 are driven to move in opposite directions through the rotating structure 3 again, which means that the first blackboard body 1 which is full before can be cleaned twice by the cleaning structure 5, and a good cleaning effect can be obtained undoubtedly.

Similarly to the transmission structure 3, as shown in fig. 2, the second transmission gear 7 and the third transmission gear 8, which are engaged with each other by the blackboard, may be provided in two. Wherein, two second transmission gears 7 are respectively arranged at the top and the bottom of the driving shaft 30, and two third transmission gears 8 are respectively arranged at the top and the bottom of the driven shaft 6. The two pairs of second transmission gears 7 and the third transmission gears 8 are respectively meshed, and through the arrangement, the transmission efficiency and the stability of transmission between the driving shaft 30 and the driven shaft 6 can be improved.

fig. 4 is a schematic view showing a cleaning structure of a blackboard according to an embodiment of the present invention. In an embodiment of the present invention, as shown in fig. 4, the cleaning structure 5 may include a main body 50 having a plurality of cavities and a plurality of cleaning parts 51 detachably disposed in the cavities of the main body 50. After a long period of use of the cleaning structure 5, the cleaning effect is inevitably greatly affected, and therefore, the cleaning structure 5 needs to be replaced. The utility model discloses an embodiment's the blackboard clean cleaning part 51 of structure 5 is demountable installation, that is to say, after cleaning structure 5 and use for a long time, only with a plurality of cleaning parts 51 change can, and need not to dismantle the overall structure of blackboard, greatly reduced change the degree of difficulty of cleaning structure 5, also improved the work efficiency of changing cleaning structure 5 simultaneously.

In an embodiment of the present invention, the cleaning part 51 may include any one of sponge, gauze, and foam.

In an embodiment of the present invention, the driver 4 may include a servo motor or a stepping motor.

In the description of the present invention, some structures or features that should have but not be described are not specifically pointed out, such as sliding rails assembled with the first and second black plate bodies 1 and 2, a housing that the transmission structure 3 should have, and similar protective structures, and a conventional control of the driver 4, and these structures or features that should have may be known to those skilled in the art, and in order to highlight the points of the present invention, these known techniques are not described in detail in the description of the present invention.

the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. a blackboard, characterized in that it comprises:

a first blackboard body (1);

The second blackboard body (2), the said second blackboard body (2) is opposite to said first blackboard body (1);

The transmission structure (3) is used for driving the first blackboard body (1) and the second blackboard body (2) to move oppositely;

A driver (4), the driver (4) being for driving the transmission structure (3).

2. The blackboard according to claim 1, characterised in that the transmission structure comprises:

The driving shaft (30), the driving shaft (30) is connected with the driver (4);

a first transmission gear (31), the first transmission gear (31) being disposed on the drive shaft (30);

the first rack (32), the first rack (32) is arranged on the first blackboard body (1), and the first rack (32) is meshed with the first transmission gear (31);

The second rack (33), the second rack (33) set up in on the second blackboard body (2), second rack (33) with first drive gear (31) meshing.

3. The blackboard according to claim 2, characterized in that it also comprises a cleaning structure (5) for cleaning the first blackboard body (1) and the second blackboard body (2), the cleaning structure (5) for cleaning the first blackboard body (1) being arranged on the driving shaft (30).

4. A blackboard according to claim 3, characterised in that it also comprises a driven shaft (6), on which the cleaning structure (5) for cleaning the second blackboard body (2) is arranged.

5. A blackboard according to claim 4, characterised in that the driving shaft (30) is also provided with a second transmission gear (7) and the driven shaft (6) is provided with a third transmission gear (8) meshing with the second transmission gear (7).

6. A blackboard according to any one of claims 3 to 5, characterised in that the cleaning structure (5) comprises a main body (50) which defines a plurality of cavities and a plurality of cleaning portions (51) which are removably arranged in the cavities.

7. The blackboard according to claim 6, characterised in that the cleaning portion (51) comprises any one of sponge, gauze, foam.

8. The blackboard according to claim 1, characterised in that the drive (4) comprises a servo motor or a stepper motor.