CN216053506U

CN216053506U - Make things convenient for quick assembly disassembly's high school physics frictional force presentation device

Info

Publication number: CN216053506U
Application number: CN202122749347.4U
Authority: CN
Inventors: 李怡然
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-15
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a high school physical friction force demonstration device convenient and quick to disassemble and assemble, which comprises a box body, wherein a partition plate is arranged in a demonstration groove, a demonstration board is arranged at the top of the partition plate, a sliding groove is formed in the other side of the partition plate, an electric push rod is arranged in a through hole, a fixed block is connected to the outer side of a sliding rod in a sliding mode, clamping blocks are arranged on the electric push rod and the top of the fixed block, clamping grooves are formed in the tops of the clamping blocks, inserting blocks are arranged in the clamping grooves, and the tops of the inserting blocks are hinged to the bottom of the demonstration board. According to the utility model, the insertion block is inserted into the clamping groove and fixed through the screw, the top of the insertion block is hinged with the bottom of the demonstration board, one side of the demonstration board is lifted under the pushing of the electric push rod, meanwhile, the fixing block slides on the slide rod, then the demonstration board is adjusted to an ideal position for experiment, and different panels on the top of the demonstration board can enable teachers to perform experiments on objects on different surfaces so as to obtain comparison data.

Description

Make things convenient for quick assembly disassembly's high school physics frictional force presentation device

Technical Field

The utility model relates to the technical field of teaching devices, in particular to a high school physical friction force demonstration device convenient to disassemble and assemble quickly.

Background

The force resisting the relative motion (or tendency of relative motion) of an object is called friction. The direction of the friction force is opposite to the direction of the relative motion (or relative motion trend) of the object. The friction force is divided into static friction force, rolling friction and sliding friction. When one object slides on the surface of the other object, friction, called sliding friction, is generated between the contact surfaces to block the relative movement of the two objects. The magnitude of the sliding friction force is related to the magnitude of the roughness of the contact surface and the magnitude of the pressure. The larger the pressure, the rougher the object contact surface, and the greater the sliding friction force generated. The methods for increasing the advantageous friction are: increasing the pressure, increasing the roughness of the contact surface, the magnitude of the pressure, etc. Methods for reducing unwanted friction are: the pressure is reduced to make the object and the contact surface smooth, so that the object and the contact surface are separated and become rolling, etc. In reality, physical experiments in a physical class are an indispensable part of physics, and the principle of physics can be visually displayed through the physical experiments, so that the understanding of students on the principle is deepened. Many physical experiments especially relate to friction force physical experiments, and because the experimental difficulty is big in friction force, many physical classes do not carry out experimental operation.

Current frictional force experimental apparatus flexibility is poor, and the function is single for can only experiment on single material when using, and make the effect that is difficult to produce the contrast among its experimentation like this, can not adjust experimental apparatus's height, inconvenient teacher and student use, and the frictional force experiment still relates to the frictional force experiment of perpendicular, and equipment does not have the experimental structure of perpendicular among the prior art, so can't satisfy prior art needs.

Therefore, it is necessary to provide a high school physical friction force demonstration device which is convenient to disassemble and assemble quickly to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high school physical friction force demonstration device convenient to disassemble and assemble quickly, wherein the demonstration board is convenient to disassemble and assemble through an inserting block and a clamping block which are fixed through screws, one end of the demonstration board is lifted under the driving of an electric push rod, and experiments can be carried out through comparison of different panels on the top of the demonstration board, so that the defects in the technology are overcome.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a make things convenient for high school physics frictional force presentation device of quick assembly disassembly, the power distribution box comprises a box body, the demonstration groove has been seted up at the box top, be provided with the baffle in the demonstration groove, baffle and box fixed connection, the baffle top is provided with the demonstration board, the perforation has been seted up to baffle one side, the spout has been seted up to the baffle opposite side, be provided with electric putter in the perforation, electric putter and box fixed connection, be provided with the slide bar in the spout, slide bar outside sliding connection has the fixed block, electric putter all is provided with the fixture block with the fixed block top, the fixture block top is provided with the draw-in groove, be provided with the inserted block in the draw-in groove, one side of inserted block is provided with the screw, the inserted block passes through the screw with the fixture block and can dismantle the connection, the inserted block top is articulated with demonstration board bottom.

Preferably, the number of the through holes is two, the through holes are distributed on two sides of the axis of the partition board in an axial symmetry manner, the number of the sliding grooves is two, and the sliding grooves are distributed on two sides of the axis of the partition board in an axial symmetry manner.

Preferably, the equal fixedly connected with backplate in demonstration board top both sides, demonstration board top one side fixedly connected with smooth board, demonstration board top opposite side fixedly connected with coarse board.

Preferably, the four corners of the bottom of the box body are fixedly connected with self-locking idler wheels, one side of the top of the box body is hinged with a box cover plate, and the two sides of the box body are fixedly connected with box handles.

Preferably, the front surface of the box body is provided with a placing groove, one side of the placing groove is provided with a box door, and the box door is hinged with the box body.

Preferably, demonstration board one side fixedly connected with angular surveying appearance, electric putter's output one side is provided with the height scale mark, 0 scale and angular surveying appearance of height scale mark highly flush.

In the technical scheme, the utility model provides the following technical effects and advantages:

through inserting the inserted block in the draw-in groove and through the fix with screw, and the inserted block top is articulated with demonstration board bottom, opens angular surveying appearance simultaneously, one side of demonstration board lifts up under electric putter's promotion, the fixed block slides on the slide bar simultaneously, then can experiment after adjusting the position of ideal with the demonstration board, thereby the different panels at demonstration board top can make the educational administration staff experiment on the object of different surfaces and obtain contrast data.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

FIG. 4 is a side cross-sectional view of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4 at B.

Description of reference numerals:

1. a box body; 2. a demonstration slot; 3. a partition plate; 4. a demonstration board; 5. perforating; 6. a chute; 7. an electric push rod; 8. a slide bar; 9. a fixed block; 10. a clamping block; 11. a card slot; 12. inserting a block; 13. a screw; 14. a guard plate; 15. a smooth plate; 16. a rough plate; 17. self-locking rollers; 18. a box cover plate; 19. a case handle; 20. a placement groove; 21. a box door; 22. an angle measuring instrument; 23. height scale lines.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides a high school physical friction force demonstration device which is convenient and quick to disassemble and assemble and shown in figures 1-5, and comprises a box body 1, wherein a demonstration groove 2 is formed in the top of the box body 1, a partition plate 3 is arranged in the demonstration groove 2, the partition plate 3 is fixedly connected with the box body 1, a demonstration plate 4 is arranged on the top of the partition plate 3, a through hole 5 is formed in one side of the partition plate 3, a sliding groove 6 is formed in the other side of the partition plate 3, an electric push rod 7 is arranged in the through hole 5, the electric push rod 7 is fixedly connected with the box body 1, a sliding rod 8 is arranged in the sliding groove 6, a fixed block 9 is slidably connected to the outer side of the sliding rod 8, clamping blocks 10 are arranged on the tops of the electric push rod 7 and the fixed block 9, clamping grooves 11 are formed in the tops of the clamping blocks 10, inserting blocks 12 are arranged in the clamping grooves 11, screws 13 are arranged on one side of the inserting blocks 12, and the inserting blocks 12 are detachably connected with the clamping blocks 10 through the screws 13, the top of the insertion block 12 is hinged with the bottom of the demonstration board 4.

Further, in above-mentioned technical scheme, perforation 5 quantity all sets up to two, two perforation 5 is axisymmetric in 3 axis both sides of baffle, 6 quantity of spout all sets up to two, two 6 axisymmetric in 3 axis both sides of baffle of spout, the fixed of two demonstration boards 4 of being convenient for.

Further, in above-mentioned technical scheme, the equal fixedly connected with backplate 14 in 4 top both sides of demonstration board, 4 top one side fixedly connected with smooth plate 15 of demonstration board, the coarse board 16 of 4 top opposite side fixedly connected with of demonstration board is favorable to experimenting simultaneously on different panels and reacing the effect of contrast.

Furthermore, in the above technical scheme, the four corners of the bottom of the box body 1 are fixedly connected with the self-locking idler wheels 17, one side of the top of the box body 1 is hinged with a box cover plate 18, and the two sides of the box body 1 are fixedly connected with box handles 19, so that the box body 1 can be used as a platform when an experiment is not performed.

Further, in the above technical solution, the front surface of the box body 1 is provided with a placing groove 20, one side of the placing groove 20 is provided with a box door 21, and the box door 21 is hinged to the box body 1, so that an object to be tested can be conveniently stored.

Further, in the above technical solution, an angle measuring instrument 22 is fixedly connected to one side of the demonstration board 4, a height scale line 23 is arranged on one side of the output end of the electric push rod 7, and the 0 scale of the height scale line 23 is flush with the height of the angle measuring instrument 22. The experimenter can clearly see the inclined height and the angle of the demonstration board 4.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, when the device is used, an insertion block 12 is inserted into a clamping groove 11 by opening a box cover plate 18 and is fixed by a screw 13, the top of the insertion block 12 is hinged with the bottom of a demonstration plate 4, an angle measuring instrument 22 is opened at the same time, the model of the angle measuring instrument 22 is TN-90-3S, an electric push rod 7 is started, the electric push rod 7 penetrates through a through hole 5, one side of the demonstration plate 4 is lifted up under the pushing of the electric push rod 7, a fixing block 9 slides on a sliding rod 8, then the demonstration plate 4 is adjusted to an ideal position for experiment, and a smooth plate 15 and a rough plate 16 on the top of the demonstration plate 4 can enable a teacher to perform experiment on objects with different surfaces so as to obtain comparison data.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a make things convenient for quick assembly disassembly's high school physics frictional force presentation device, includes box (1), its characterized in that: the demonstration box is characterized in that a demonstration groove (2) is formed in the top of the box body (1), a partition plate (3) is arranged in the demonstration groove (2), the partition plate (3) is fixedly connected with the box body (1), a demonstration board (4) is arranged at the top of the partition plate (3), a through hole (5) is formed in one side of the partition plate (3), a sliding groove (6) is formed in the other side of the partition plate (3), an electric push rod (7) is arranged in the through hole (5), the electric push rod (7) is fixedly connected with the box body (1), a sliding rod (8) is arranged in the sliding groove (6), a fixed block (9) is slidably connected to the outer side of the sliding rod (8), clamping blocks (10) are arranged at the tops of the electric push rod (7) and the fixed block (9), clamping grooves (11) are formed in the tops of the clamping blocks (10), inserting blocks (12) are arranged in the clamping grooves (11), screws (13) are arranged on one side of the inserting blocks (12), the inserting block (12) is detachably connected with the clamping block (10) through a screw (13), and the top of the inserting block (12) is hinged to the bottom of the demonstration board (4).

2. The high school physical friction demonstration device convenient for quick assembly and disassembly according to claim 1, wherein: perforation (5) quantity all sets up to two, two perforation (5) are axisymmetric in baffle (3) axis both sides, spout (6) quantity all sets up to two, two spout (6) are axisymmetric in baffle (3) axis both sides.

3. The high school physical friction demonstration device convenient for quick assembly and disassembly according to claim 1, wherein: the demonstration board is characterized in that protective plates (14) are fixedly connected to two sides of the top of the demonstration board (4), smooth plates (15) are fixedly connected to one side of the top of the demonstration board (4), and rough plates (16) are fixedly connected to the other side of the top of the demonstration board (4).

4. The high school physical friction demonstration device convenient for quick assembly and disassembly according to claim 1, wherein: the automatic lifting device is characterized in that self-locking idler wheels (17) are fixedly connected to four corners of the bottom of the box body (1), a box cover plate (18) is hinged to one side of the top of the box body (1), and box handles (19) are fixedly connected to two sides of the box body (1).

5. The high school physical friction demonstration device convenient for quick assembly and disassembly according to claim 1, wherein: the front surface of the box body (1) is provided with a placing groove (20), one side of the placing groove (20) is provided with a box door (21), and the box door (21) is hinged with the box body (1).

6. The high school physical friction demonstration device convenient for quick assembly and disassembly according to claim 1, wherein: demonstration board (4) one side fixedly connected with angular surveying appearance (22), electric putter's (7) output one side is provided with height scale mark (23), 0 scale and angular surveying appearance (22) of height scale mark (23) highly flush.