CN214083626U - Portable blackboard - Google Patents

Abstract

The utility model discloses a portable blackboard, including first blackboard, the top outer wall of first blackboard articulates there is the second blackboard, and the both ends outer wall of second blackboard has all opened first draw-in groove, the equal fixedly connected with U-shaped frame of both ends outer wall of first blackboard, and two telescopic links of one side inner wall fixedly connected with of U-shaped frame, two the same first cardboard of other end outer wall fixedly connected with of telescopic link, and first cardboard are the cuboid, first cardboard and first draw-in groove looks adaptation, fixed two first springs that are provided with between first cardboard and the U-shaped frame. The utility model discloses when carrying the blackboard, the pull rod on pulling both sides, and then breaks away from first draw-in groove with first cardboard, then extracts the second draw-in groove with the second cardboard in the backup pad, opens the piston, places the backup pad in the standing groove, extrudes the second spring simultaneously, rotates the second blackboard this moment, wholly folds the blackboard, reduces the height of blackboard, reaches portable's purpose.

Description

Portable blackboard

Technical Field

The utility model relates to a blackboard technical field especially relates to a portable 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 is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Mostly black, greenish black, white or beige.

Middle school student when the outdoor teaching, need use small-size blackboard, at present, current outdoor small-size blackboard of using is because its volume is great, not portable to cause the influence to outdoor teaching, consequently, need to design a portable blackboard and solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a portable blackboard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a portable blackboard, includes first blackboard, the top outer wall of first blackboard articulates there is the second blackboard, and the both ends outer wall of second blackboard has all opened first draw-in groove, the equal fixedly connected with U-shaped frame of both ends outer wall of first blackboard, and two telescopic links of one side inner wall fixedly connected with of U-shaped frame, two the same first cardboard of the other end outer wall fixedly connected with of telescopic link, and first cardboard are the cuboid, first cardboard and first draw-in groove looks adaptation, fixed two first springs that are provided with between first cardboard and the U-shaped frame, and the telescopic link is located first spring, the one end outer wall fixedly connected with of first cardboard extends to the outer pull rod of U-shaped frame.

Preferably, the outer wall of the bottom of the first blackboard is fixedly connected with a base.

Preferably, the outer wall of one end of the base is provided with a placing groove, and the inner wall of one end of the placing groove is clamped with a piston.

Preferably, the outer wall of one side of the second blackboard is provided with a round ball groove, the section of the round ball groove is two-thirds of a circle, the inner wall of the round ball groove is provided with a rotating ball, and the outer wall of the rotating ball is provided with a plurality of second clamping grooves.

Preferably, the outer wall of one side of the second blackboard is provided with a supporting plate, the outer wall of the top of the supporting plate is provided with a movable groove, the inner wall of the bottom of the movable groove is fixedly connected with a second spring, the outer wall of one end of the second spring is fixedly connected with a second clamping plate, and the second clamping plate is matched with a second clamping groove.

Preferably, the supporting plate is adapted to the placing groove.

The utility model has the advantages that:

1. through the first blackboard that sets up, the second blackboard, first draw-in groove, first cardboard, first spring, the telescopic link, U-shaped board and pull rod, when carrying the blackboard, the pull rod on pulling both sides, and then break away from first draw-in groove with first cardboard, then extract the second draw-in groove with the second cardboard in the backup pad, open the piston, place the backup pad in the standing groove, extrude the second spring simultaneously, rotate the second blackboard this moment, wholly fold the blackboard, reduce the height of blackboard, reach portable's purpose.

2. Through the backup pad that sets up, rolling ball and base, accomplish the back to second blackboard and first blackboard installation, open the piston, the backup pad pops out under the effect of second spring, insert the second cardboard in the second draw-in groove in the backup pad afterwards, under the effect in rolling ball and ball groove, make the backup pad can three hundred sixty degrees rotations, be convenient for adjust the angle of backup pad, insert ground with the other end of backup pad, because the backup pad, be triangle-shaped between ground and the blackboard, and then increase the stability that the blackboard was placed.

Drawings

Fig. 1 is a schematic view of the folding overall structure of a portable blackboard according to the present invention;

FIG. 2 is a schematic view of the overall structure of the portable blackboard in an expanded state;

FIG. 3 is a schematic structural view of the first clamping plate and the U-shaped frame of the portable blackboard according to the present invention;

FIG. 4 is a sectional view showing a structure of a support plate of a portable blackboard and a partial side of a first blackboard according to the present invention;

FIG. 5 is an enlarged view of the structure at the position A of the portable blackboard according to the present invention;

fig. 6 is a sectional view showing the partial front structure of the base of the portable blackboard according to the present invention.

In the figure: 1. a first blackboard; 2. a second blackboard; 3. a first card slot; 4. a U-shaped frame; 5. a base; 6. a support plate; 7. a first spring; 8. a first clamping plate; 9. a telescopic rod; 10. a pull rod; 11. a spherical groove; 12. a second card slot; 13. a second clamping plate; 14. rotating the ball; 15. a second spring; 16. a piston; 17. and (6) placing the groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

Referring to fig. 1-6, a portable blackboard, including first blackboard 1, the top outer wall of first blackboard 1 articulates there is second blackboard 2, and first draw-in groove 3 has all been opened to the both ends outer wall of second blackboard 2, the both ends outer wall of first blackboard 1 all has U-shaped frame 4 through bolted connection, and there are two telescopic links 9 through bolted connection of one side inner wall of U-shaped frame 4, there is same first cardboard 8 through bolted connection of the other end outer wall of two telescopic links 9, and first cardboard 8 is the cuboid, first cardboard 8 and 3 looks adaptations of first draw-in groove, fixed two first springs 7 that are provided with between first cardboard 8 and the U-shaped frame 4, and telescopic link 9 is located first spring 7, the one end outer wall of first cardboard 8 has the pull rod 10 that extends to the U-shaped frame 4 through bolted connection.

The outer wall of the bottom of the first blackboard 1 is connected with a base 5 through a bolt, the outer wall of one end of the base 5 is provided with a placing groove 17, the inner wall of one end of the placing groove 17 is clamped with a piston 16, and the stability of blackboard installation is improved through the base 5; the support plate 6 is supported by the placement groove 17.

The outer wall of one side of the second blackboard 2 is provided with a ball groove 11, the section of the ball groove 11 is two-thirds of a circle, the inner wall of the ball groove 11 is provided with a rotating ball 14, the outer wall of the rotating ball 14 is provided with a plurality of second clamping grooves 12, the outer wall of one side of the second blackboard 2 is provided with a support plate 6, the outer wall of the top of the support plate 6 is provided with a movable groove, the inner wall of the bottom of the movable groove is connected with a second spring 15 through a bolt, the outer wall of one end of the second spring 15 is connected with a second clamping plate 13 through a bolt, the second clamping plate 13 is matched with the second clamping grooves 12, the support plate 6 is matched with a placing groove 17, and the angle of the support plate 6 can be conveniently adjusted through the ball groove 11 and the rotating ball 14; the support plate 6 is convenient to be arranged on the second blackboard 2 through the second clamping plate 13; the ribbon support plate 6 is facilitated by the placement groove 17.

The working principle is as follows: when the blackboard is carried, the pull rods 10 at two sides are pulled, the first clamping plate 8 is separated from the first clamping groove 3, the second clamping plate 13 on the supporting plate 6 is pulled out of the second clamping groove 12, the piston 16 is opened, the supporting plate 6 is placed in the placing groove 17, the second spring 15 is simultaneously extruded, the second blackboard 2 is rotated at the moment, the whole blackboard is folded, the height of the blackboard is reduced, and the purpose of convenient carrying is achieved, after the second blackboard 2 and the first blackboard 1 are installed, the piston 16 is opened, the supporting plate 6 is popped up under the action of the second spring 15, the second clamping plate 13 on the supporting plate 6 is inserted into the second clamping groove 12, under the action of the rotating ball 14 and the round ball groove 11, the supporting plate 6 can rotate by three hundred and sixty degrees, the angle of the supporting plate 6 is convenient to adjust, the other end of the supporting plate 6 is inserted into the ground, and the supporting plate 6, the ground and the space between the ground are triangular, thereby increasing the stability of the blackboard.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A portable blackboard comprises a first blackboard (1) and is characterized in that a second blackboard (2) is hinged with the outer wall of the top of the first blackboard (1), the outer walls of the two ends of the second blackboard (2) are respectively provided with a first clamping groove (3), the outer walls of the two ends of the first blackboard (1) are respectively fixedly connected with a U-shaped frame (4), two telescopic rods (9) are fixedly connected with the inner wall of one side of the U-shaped frame (4), the outer wall of the other end of each telescopic rod (9) is fixedly connected with the same first clamping plate (8), the first clamping plate (8) is cuboid, the first clamping plate (8) is matched with the first clamping groove (3), two first springs (7) are fixedly arranged between the first clamping plate (8) and the U-shaped frame (4), and the telescopic rod (9) is positioned in the first spring (7), and the outer wall of one end of the first clamping plate (8) is fixedly connected with a pull rod (10) extending out of the U-shaped frame (4).

2. A portable blackboard according to claim 1, characterised in that the bottom outer wall of the first blackboard (1) is fixedly connected with a base (5).

3. The portable blackboard according to claim 2, wherein the outer wall of one end of the base (5) is provided with a placing groove (17), and the inner wall of one end of the placing groove (17) is clamped with a piston (16).

4. The portable blackboard according to claim 1, wherein the outer wall of one side of the second blackboard (2) is provided with a spherical groove (11), the section of the spherical groove (11) is two thirds of a circle, the inner wall of the spherical groove (11) is provided with a rotating ball (14), and the outer wall of the rotating ball (14) is provided with a plurality of second clamping grooves (12).

5. A portable blackboard according to claim 4, characterized in that a support plate (6) is arranged on the outer wall of one side of the second blackboard (2), a movable groove is formed in the outer wall of the top of the support plate (6), a second spring (15) is fixedly connected to the inner wall of the bottom of the movable groove, a second clamping plate (13) is fixedly connected to the outer wall of one end of the second spring (15), and the second clamping plate (13) is matched with the second clamping groove (12).

6. A portable blackboard according to claim 5, characterised in that the support plate (6) is adapted to the resting slot (17).

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