CN204496787U - A kind of physics teaching experimental device - Google Patents

Abstract

A physics teaching experiment device, comprising a base plate, a support column and a support rod are installed on the base plate, a first rotating shaft is arranged on the upper end of the supporting rod, the first rotating shaft is connected to one end of the supporting plate, a second rotating shaft is installed on the upper part of the supporting plate, and the second rotating shaft There is a matching bearing on the top, and a fixed ring is arranged on the outer wall of the bearing. The fixed ring is connected to one end of the rope, and the other end of the rope is connected to the third rotating shaft arranged on the upper end of the support column. The third rotating shaft is connected with a ratchet and a handle. There are mutually matching chucks, the chucks are arranged inside the slide tube, the slide tube is provided with a chute, the chute and the slide bar arranged on the chuck cooperate with each other, the bottom of the chuck and the bottom of the slide tube are provided with a first spring, The bottom end of the slide tube is connected with the connection block, the connection block is connected with the support column through a nut, and a protractor is arranged between the bottom plate and the support plate. The utility model is lively and playful, can attract students' interest in learning and can improve teaching efficiency, and has simple structure and convenient operation.

Description

A physics teaching experiment device

technical field

The utility model relates to a physics teaching experiment device, in particular to a friction coefficient research device, which belongs to the application field of physics teaching aids.

Background technique

At present, when teachers teach students on inclined planes, in order for students to understand various physical phenomena more intuitively, they generally need to conduct experiments to enable students to observe intuitively. The equipment for demonstrating the function of the inclined plane, so that it not only takes a long time to find a suitable equipment or place during the experimental demonstration teaching process, but also because the angle of the inclined plane is not easy to fix and determine, it is easy to fail during the demonstration process. This not only affects the quality of teaching, but also reduces the teaching efficiency.

Utility model content

The purpose of the utility model is to provide a physics teaching experiment device, through which the friction coefficient can be well studied and the measurement of the friction coefficient can be completed.

The purpose of this utility model is achieved by the following approach:

A physics teaching experiment device, comprising a base plate, a support column and a support rod are installed on the base plate, a first rotating shaft is arranged on the upper end of the support rod, the first rotating shaft is connected to one end of the support plate, and the upper end of the support plate is installed There is a second rotating shaft, the second rotating shaft is provided with matching bearings, the outer wall of the bearing is provided with a fixed ring, the fixed ring is connected to one end of the rope, and the other end of the rope is connected to the third rotating shaft arranged on the upper end of the supporting column , the third rotating shaft is connected with a ratchet and a handle, above the ratchet is provided with a chuck that cooperates with each other, and the chuck is arranged inside the slide tube, and the slide tube is provided with a chute, the chute and The slide rods arranged on the chuck cooperate with each other, the bottom of the chuck and the bottom of the slide tube are provided with a first spring, the bottom end of the slide tube is connected to a connecting block, and the connecting block is connected to a support column through a nut. A protractor is provided between the bottom plate and the support plate, and stoppers and clamping devices are provided at both ends of the support plate, and the clamping device includes a pressing block, one end of the pressing block is provided with a pressing head and the other end is provided with a pressing groove, The pressing block is provided with a fourth rotating shaft, the fourth rotating shaft is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the connecting plate, and the connecting plate is connected to the support plate through screws, and the connection between the pressing block and the connecting plate A second spring is connected between them. Beneficial effects of the utility model:

In the utility model, the angle of the support plate is adjustable, and the angle of rotation is conveniently measured by the protractor. The clamping device can clamp plates of different materials, so that the coefficient of friction of different materials can be measured. In addition, the utility model The utility model is vivid and fun, can attract students' interest in learning and can improve teaching efficiency, and the utility model has simple structure, convenient operation and is suitable for popularization.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the ratchet connection structure of the utility model;

Fig. 3 is a structural schematic diagram of the clamping device of the present invention;

In the figure, 1. base plate, 2. support column, 3. support rod, 4. first rotating shaft, 5. supporting plate, 6. stopper, 7. second rotating shaft, 8. bearing, 9. fixed ring, 10. Rope, 11, third rotating shaft, 12, handle, 13, ratchet, 14, clamping device, 15, connecting block, 16, nut, 17, slide pipe, 18, chute, 19, chuck, 20, slide bar , 21, the first spring, 22, the groove, 23, the pressure block, 24, the fourth shaft, 25, the connecting rod, 26, the connecting plate, 27, the screw, 28, the second spring, 29, the pressure head, 30, protractor.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Example:

As shown in Fig. 1 to Fig. 3, a kind of physics teaching experiment device comprises base plate, and support column 2 and support rod 3 are installed on described base plate 1, and described support rod upper end is provided with first rotating shaft 4, and described first The rotating shaft is connected to one end of the supporting plate 5, and the second rotating shaft 7 is installed on the top of the supporting plate, and the matching bearing 8 is arranged on the second rotating shaft, and a fixed ring 9 is arranged on the outer wall of the bearing, and the fixed ring and the rope 10 is connected at one end, and the other end of the rope is connected with the third rotating shaft 11 arranged on the upper end of the support column. The third rotating shaft is connected with a ratchet 13 and a handle 12, and a mutually matching chuck 19 is arranged above the ratchet. The head is arranged inside the slide tube 17, and the slide tube is provided with a chute 18, and the chute cooperates with the slide bar 20 arranged on the chuck, and the bottom of the chuck and the bottom of the slide tube are provided with a first spring 21. The bottom end of the slide tube is connected to the connecting block 15, and the connecting block is connected to the support column through a nut 16, and a protractor 30 is arranged between the bottom plate and the support plate. Both ends of the support plate are provided with a stopper 6 and a clamping device 14, the clamping device includes a briquetting block 23, one end of the briquetting block is provided with a pressing head 29 and the other end is provided with a pressing groove 22, and the briquetting block is provided with a press groove 22 A fourth rotating shaft 24 is provided, and the fourth rotating shaft is connected to one end of the connecting rod 25, and the other end of the connecting rod is connected to the connecting plate 26, and the connecting plate is connected to the supporting plate by screws 27, and the connection between the pressing block and the connecting plate A second spring 28 is attached.

Specific usage method:

As shown in Figure 1 to Figure 3, the teacher selects a standard-shaped wooden block or metal block (preferably designed as a rectangular or cubic shape), weighs its mass, and then places it on the support board, and shakes the support board through the handle , stop rotating when the wooden or metal block just slides, and the friction coefficient can be calculated by reading the angle. The utility model has a simple structure, can be used for a long time, is low-carbon and environmentally friendly, and is worth popularizing.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the art can think of it without creative work within the technical scope disclosed in the utility model. All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be determined by the protection scope defined in the claims.

Claims (1)

1. a physics teaching experimental device, comprise base plate, it is characterized in that, described base plate is provided with support column and support bar, described post upper is provided with the first rotating shaft, described first rotating shaft is connected with back up pad one end, described back up pad top is provided with the second rotating shaft, described second rotating shaft is provided with identical bearing, described bearing outer wall is provided with retainer plate, described retainer plate is connected with rope one end, the rope other end is connected with the 3rd rotating shaft being arranged on support column upper end, described 3rd rotating shaft is connected with ratchet and handle, the dop cooperatively interacted is provided with above described ratchet, described dop is arranged on slider tube, described slip pipe is provided with chute, described chute and the slide bar be arranged on dop cooperatively interact, the first spring is provided with bottom described dop He bottom slip pipe, described slip pipe bottom is connected with contiguous block, described contiguous block is connected with support column by nut, protractor is provided with between described base plate and back up pad, described back up pad two ends are provided with block and clamping device, described clamping device comprises a briquetting, described briquetting one end is provided with pressure head one end and is provided with by groove, described briquetting is provided with the 4th rotating shaft, described 4th rotating shaft is connected with connecting link one end, the connecting link other end is connected with web joint, described web joint is connected with back up pad by screw, the second spring is connected with between described briquetting and web joint.