CN215182630U - Portable angular momentum conservation demonstration device - Google Patents

Abstract

The utility model discloses a portable angular momentum conservation presentation device, including base, layer board, upper cover and backplate, the inside of base is equipped with the layer board, the inside spacing backplate of installing of upper cover, one side surface mosaic of backplate has the display screen, one side surface mounting that the backplate deviates from the display screen has the blank, be equipped with the grafting post in the upper cover, the both sides welding of backplate has the limiting plate, the both sides of backplate are equipped with the spacer pin, the inside movable mounting of upper cover has the stopper, one side that the upper cover deviates from the hinge is equipped with the buckle, upper cover and base pass through the buckle spacing fixedly, the connecting block is installed on the top of upper cover, the connecting block is cavity dress, the internally mounted of connecting block has the extension spring, and the one end of extension spring is connected fixedly with the stopper, be connected with the connecting band between the connecting block. The utility model discloses possess small in size, simple structure, portable, and then increase actual result of use's advantage.

Description

Portable angular momentum conservation demonstration device

Technical Field

The utility model relates to a presentation device technical field specifically is a portable angular momentum conservation presentation device.

Background

Angular momentum refers in physics to the displacement of an object to the origin and a momentum-related physical quantity. It characterizes the speed of the particle radial sweep area or the intensity of rigid body fixed axis rotation.

But the simple structure of current angular momentum conservation presentation apparatus, the function is single, can't audio-visual demonstrate, and current angular momentum presentation device is bulky, and the structure is more complicated, and portable not convenient to carry, and then influences the in-service use effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable angular momentum conservation presentation device possesses small in size, simple structure, and portable, and then increase actual result of use's advantage, has solved current angular momentum conservation presentation instrument's simple structure, and the function is single, can't audio-visual demonstrate, and current angular momentum presentation device is bulky, and the structure is more complicated, is not portable, and then influences the problem of in-service use effect.

In order to achieve the above object, the utility model provides a following technical scheme:

a portable angular momentum conservation demonstration device comprises a base, a supporting plate, an upper cover and a back plate, wherein the supporting plate is arranged inside the base, a hinge is installed on one side of the base, the upper cover is rotatably installed on the base through the hinge, the back plate is installed in the upper cover in a limiting manner, a display screen is embedded on the surface of one side of the back plate, a white plate is installed on the surface of one side, away from the display screen, of the back plate, an inserting column is arranged in the upper cover, limiting plates are welded on two sides of the back plate, limiting pins are arranged on two sides of the back plate, a limiting block is movably installed in the upper cover, a buckle is arranged on one side, away from the hinge, of the upper cover, the upper cover and the base are limited and fixed through the buckle, a connecting block is installed at the top end of the upper cover, the connecting block is hollow, a tension spring is installed in the connecting block, and one end of the tension spring is connected and fixed with the limiting block, and connecting belts are connected between the connecting blocks.

Preferably, a through hole is formed in the limiting plate in a penetrating mode, and the through hole is matched with the position and the size of the insertion column.

Preferably, one side of the display screen is provided with an HDMI interface and a DP interface for connecting the display screen with an external display device.

Preferably, the limiting block is provided with a limiting hole in a penetrating manner, and the position and the size of the limiting hole are matched with those of the limiting pin.

Preferably, the number of the inserting columns is four, the two inserting columns are symmetrically distributed on two sides of the back plate in a group, the limiting pin is located on the central line of the back plate, and the limiting plates are symmetrically distributed on two sides of the limiting pin.

Preferably, the outside parcel of connecting band has the hand protector, just the hand protector is located the center department of connecting band.

Preferably, the supporting plate is provided with a limiting groove, and the upper surface of the supporting plate is covered with a pressing plate.

Compared with the prior art, the beneficial effects of the utility model are that: by arranging the base, the supporting plate is arranged in the base, the angular momentum demonstration prop to be used is accommodated through the limiting groove when in use, the pressing plate is arranged on the upper cover of the supporting plate, the prop can be limited in the limiting groove, and the pressing plate plays a role of separating between the display screen and the prop to prevent the prop from damaging the display screen when moving, by arranging the back plate, limiting pins are arranged on two sides of the back plate, the back plate is rotatably arranged in the limiting blocks of the upper cover through the limiting pins, a display screen and a white board are respectively arranged on two sides of the back plate, the display screen can display demonstration videos of angular momentum, the white board is convenient for a user to write a blackboard, the back plate is arranged in the upper cover in a limiting way through a tension spring, when needing to switch, the user stimulates the backplate, makes the stopper on the backplate and the separation of the grafting post in the upper cover, and later the user rotates the backplate, makes blank and display screen exchange, and later the user pegs graft the stopper of backplate and the grafting post each other once more and carries on spacingly.

Drawings

FIG. 1 is a schematic top view of the open package of the present invention;

FIG. 2 is a schematic front view of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a schematic side view of the upper cover of the present invention.

In the figure: 1. a base; 2. a support plate; 3. a limiting groove; 4. pressing a plate; 5. a limiting plate; 6. a limiting block; 7. inserting the column; 8. buckling; 9. an upper cover; 10. a display screen; 11. a back plate; 12. connecting blocks; 13. a connecting belt; 14. protecting hands; 15. a limiting hole; 16. a white board; 17. and a limiting pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment:

11, a display screen 10 is embedded on the surface of one side of a back plate 11, an HDMI interface and a DP interface are arranged on one side of the display screen 10 for connecting the display screen 10 with an external display device, a white board 16 is arranged on the surface of one side of the back plate 11 away from the display screen 10, four insertion columns 7 are arranged in an upper cover 9, the two insertion columns 7 are symmetrically distributed on two sides of the back plate 11 in a group, a limit pin 17 is positioned on the central line of the back plate 11, limit pins 17 are arranged on two sides of the back plate 11, the back plate 11 is rotatably installed in a limit block 6 of the upper cover 9 through the limit pin 17, a display screen 10 and a white board 16 are respectively arranged on two sides of the back plate 11, the display screen 10 can display demonstration videos of angular momentum, the white board 16 is convenient for a user to write on a board, the back plate 11 is installed in the upper cover 9 in a limit manner through a tension spring, when switching is needed, the user pulls the back plate 11 to separate the limit block 6 on the back plate 11 from the insertion columns 7 in the upper cover 9, then the user rotates the backboard 11 to exchange the white board 16 with the display screen 10, and then the user inserts the limit block 6 of the backboard 11 and the insertion column 7 into each other again to limit.

The limiting plates 5 are symmetrically distributed on two sides of the limiting pin 17, the limiting plates 5 are welded on two sides of the back plate 11, through holes are formed in the limiting plates 5 in a penetrating mode and are matched with the position and the size of the inserting column 7, the limiting pin 17 is arranged on two sides of the back plate 11, the limiting block 6 is movably installed inside the upper cover 9, a limiting hole 15 is formed in the limiting block 6 in a penetrating mode, the position and the size of the limiting hole 15 are matched with those of the limiting pin 17, a buckle 8 is arranged on one side, away from the hinge, of the upper cover 9, the upper cover 9 and the base 1 are limited and fixed through the buckle 8, a supporting plate 2 is arranged in the base 1, when the prop is used, an angular momentum demonstration prop to be used is stored through the limiting groove 3, the pressing plate 4 is placed on the upper cover 9 of the supporting plate 2 and can limit the prop in the limiting groove 3, and the pressing plate 4 plays a blocking effect between the display screen 10 and the prop, so that the prop is prevented from damaging the display screen 10 when the prop moves, connecting block 12 is installed on the top of upper cover 9, and connecting block 12 is the cavity dress, and the internally mounted of connecting block 12 has the extension spring, and the one end and the stopper 6 of extension spring are connected fixedly, is connected with connecting band 13 between connecting block 12, and the outside parcel of connecting band 13 has hand protector 14, and hand protector 14 is located the center department of connecting band 13.

The working principle is as follows: when a user uses the tool, the two sides of the back plate 11 are provided with limiting pins 17, the back plate 11 is rotatably installed in the limiting block 6 of the upper cover 9 through the limiting pins 17, the two sides of the back plate 11 are respectively provided with a display screen 10 and a white plate 16, the display screen 10 can display demonstration videos of angular momentum, the white plate 16 is convenient for the user to write a blackboard book, the back plate 11 is limitedly installed in the upper cover 9 through a tension spring, when the user needs to switch, the user pulls the back plate 11 to separate the limiting block 6 on the back plate 11 from the inserting column 7 in the upper cover 9, then the user rotates the back plate 11 to exchange the white plate 16 with the display screen 10, then the user mutually inserts the limiting block 6 and the inserting column 7 of the back plate 11 to limit again, the supporting plate 2 is arranged in the base 1, the angular momentum demonstration tool to be used is stored through the limiting groove 3 when the tool is used, the upper cover 9 of the supporting plate 2 is provided with a pressing plate 4 capable of limiting the tool in the limiting groove 3, and the pressing plate 4 plays a role in separating between the display screen 10 and the prop, so that the prop is prevented from damaging the display screen 10 when moving.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a portable angular momentum conservation presentation device, includes base (1), layer board (2), upper cover (9) and backplate (11), its characterized in that: the novel LED lamp is characterized in that a supporting plate (2) is arranged inside the base (1), a hinge is installed on one side of the base (1), an upper cover (9) is installed on the base (1) through the hinge in a rotating mode, a back plate (11) is installed inside the upper cover (9) in a limiting mode, a display screen (10) is embedded on the surface of one side of the back plate (11), a white plate (16) is installed on the surface of one side, deviating from the display screen (10), of the back plate (11), an inserting column (7) is arranged in the upper cover (9), limiting plates (5) are welded on the two sides of the back plate (11), limiting pins (17) are arranged on the two sides of the back plate (11), limiting blocks (6) are movably installed inside the upper cover (9), a buckle (8) is arranged on one side, deviating from the hinge, of the upper cover (9) and the base (1) are fixed in a limiting mode through the buckle (8), a connecting block (12) is installed on the top end of the upper cover (9), connecting block (12) are the cavity dress, the internally mounted of connecting block (12) has the extension spring, and the one end and stopper (6) of extension spring are connected fixedly, be connected with connecting band (13) between connecting block (12).

2. A portable angular momentum conservation presentation device as claimed in claim 1, wherein: the limiting plate (5) is provided with a through hole in a penetrating mode, and the through hole is matched with the insertion column (7) in position and size.

3. A portable angular momentum conservation presentation device as claimed in claim 1, wherein: an HDMI interface and a DP interface are arranged on one side of the display screen (10) and are used for connecting the display screen (10) with external display equipment.

4. A portable angular momentum conservation presentation device as claimed in claim 1, wherein: the limiting block (6) is provided with a limiting hole (15) in a penetrating mode, and the position and the size of the limiting hole (15) are matched with those of the limiting pin (17).

5. A portable angular momentum conservation presentation device as claimed in claim 1, wherein: the number of the inserting columns (7) is four, the two inserting columns (7) are symmetrically distributed on two sides of the back plate (11) in a group, the limiting pin (17) is located on the central line of the back plate (11), and the limiting plates (5) are symmetrically distributed on two sides of the limiting pin (17).

6. A portable angular momentum conservation presentation device as claimed in claim 1, wherein: the outside parcel of connecting band (13) has hand protector (14), just hand protector (14) are located the center department of connecting band (13).

7. A portable angular momentum conservation presentation device as claimed in claim 1, wherein: the supporting plate (2) is provided with a limiting groove (3), and the upper surface of the supporting plate (2) is covered with a pressing plate (4).

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