CN210574553U

CN210574553U - Physics student uses study auxiliary device

Info

Publication number: CN210574553U
Application number: CN201921510688.2U
Authority: CN
Inventors: 全阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-05-19
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a physics student learning auxiliary device, which comprises a base, a friction block and a drawing box, wherein the upper surface of the base is fixedly connected with a support plate, a track groove is arranged on the support plate, a guide rod is fixedly connected in the track groove, a limit plate is fixedly connected between the tops of the support plate, a through groove is arranged on the limit plate, the left end and the right end of the friction block are rotatably connected with a lifting slider, the lifting slider is slidably connected in the track groove, a jacking spring is sleeved on the guide rod below the lifting slider, and a hook ring is fixedly connected on the outer wall of the right side plate of the drawing box. Thereby facilitating the research by using a controlled variable method.

Description

Physics student uses study auxiliary device

Technical Field

The utility model relates to a teaching aid technical field, concretely relates to physics student is with study auxiliary device.

Background

Physics is the subject of studying the general laws of motion and the basic structure of a substance. As a basic subject of natural science, physics studies the most basic motion forms and laws of all substances, including universes and basic particles, and thus becomes the basis of research in other natural science subjects. The theoretical structure of the system fully uses mathematics as the working language of the system, and experiments are used as the only standard for checking the theoretical correctness, which is the most precise natural science subject at present.

In order to improve the teaching efficiency and the interest of students, in the process of physical teaching, experiments are usually supplemented to help the students to better understand the physical laws, the entertainment of classroom teaching is improved, and the research and cognition of friction are relatively basic physical teaching contents.

In the process of carrying out the frictional force research, pulling the heavy object on the friction surface, the pulling force when pulling through the heavy object studies the relation between pulling force and the heavy object and carries out the research of coefficient of friction, but among the prior art, does not have the equipment of studying to frictional force specially, and at the in-process of teaching, the mr can not be convenient the show of carrying out the experiment, causes the teaching effect relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model provides a student uses study auxiliary device for physics, the utility model discloses a realize through following technical scheme.

A learning auxiliary device for physics students comprises a base, a friction block and a pull box, wherein a supporting plate is symmetrically and fixedly connected to the upper surface of the base, a through track groove is formed in the supporting plate, a vertical guide rod is fixedly connected in the track groove, a limiting plate is fixedly connected between the tops of the supporting plates, and a through groove is formed in the limiting plate; the friction block is of a cuboid structure, the side faces of the left end and the right end of the friction block are square, the left end and the right end of the friction block are rotatably connected with a rotating shaft, the other end of the rotating shaft is fixedly connected with a lifting slide block, the lifting slide block is slidably connected in the track groove and is also slidably connected with a guide rod, a jacking spring is sleeved on the guide rod below the lifting slide block, when the upper surface of the friction block is in contact with the lower surface of the limiting plate, the jacking spring is in a compressed state, and the sizes of the upper side face, the lower side face, the front side face, the rear side face and the; the pull box is placed in the through groove, the bottom of the pull box is in contact with the upper surface of the friction block, and a hook ring is fixedly connected to the outer wall of the right side plate of the pull box.

Furthermore, the four corners of the lower surface of the base are fixedly connected with suckers.

Furthermore, the bearing seats are fixedly connected to the centers of the left side surface and the right side surface of the friction block, and the rotating shaft is rotatably connected with the bearing seats.

Furthermore, the roughness of the upper, lower, front and rear four side surfaces of the friction block is different.

The portable type weight-pulling device is characterized by further comprising a containing box, wherein the containing box is fixedly connected to the right side of the base, a plurality of standard weight blocks with the same weight are contained in the containing box, and the weight of the pulling box is equal to that of one standard weight block.

The beneficial effects of the utility model are that, novel structure, the function is practical, and this device is at the in-process that uses, can select different friction surfaces to carry out the frictional force experiment through the rotation of clutch blocks, uses the spring dynamometer pulling to draw the box and carry out the measurement of frictional force to can place the standard weight piece of different figure in drawing the box and change the weight of drawing the box, thereby facilitate the use control variable method and study.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1: the utility model relates to an axonometric drawing of a learning auxiliary device for physics students;

FIG. 2: the utility model relates to a cross section of a learning auxiliary device for physics students;

FIG. 3: the reading of the spring dynamometer is changed along with the number of standard weight blocks in the pull box.

The reference numbers are as follows:

1. a base 101, a support plate 102, a track groove 103, a guide rod 104, a limit plate 105, a through groove 106 and a sucker,

2. a friction block 201, a rotating shaft 202, a lifting slide block 203, a jacking spring 204 and a bearing seat,

3. a pulling box 301 and a hook ring are arranged on the box,

4. a containing box 401 and a standard weight block.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, a learning auxiliary device for physics students comprises a base 1, a friction block 2 and a pull box 3, wherein a support plate 101 is symmetrically and fixedly connected to the upper surface of the base 1, a through rail groove 102 is formed in the support plate 101, a vertical guide rod 103 is fixedly connected to the inside of the rail groove 102, a limit plate 104 is fixedly connected between the tops of the support plates 101, and a through groove 105 is formed in the limit plate 104; the friction block 2 is of a cuboid structure, the side faces of the left end and the right end of the friction block 2 are square, the left end and the right end of the friction block 2 are rotatably connected with a rotating shaft 201, the other end of the rotating shaft 201 is fixedly connected with a lifting slide block 202, the lifting slide block 202 is slidably connected in the track groove 102, the lifting slide block 202 is further slidably connected with a guide rod 103, a jacking spring 203 is sleeved on the guide rod 103 below the lifting slide block 202, when the upper surface of the friction block 2 is in contact with the lower surface of the limiting plate 104, the jacking spring 203 is in a compressed state, and the sizes of the upper side face, the lower side face, the front side face; the pull box 3 is placed in the through groove 105, the bottom of the pull box 3 is in contact with the upper surface of the friction block 2, and the outer wall of the right side plate of the pull box 3 is fixedly connected with a hook ring 301.

Preferably, suction cups 106 are fixedly connected to four corners of the lower surface of the base 1.

Preferably, bearing seats 204 are fixedly connected to the centers of the left and right side surfaces of the friction block 2, and the rotating shaft 201 is rotatably connected to the bearing seats 204.

Preferably, the roughness of the upper, lower, front and rear four side surfaces of the friction block 2 is different from each other.

Preferably, the weight-adjustable weight is characterized by further comprising a holding box 4, wherein the holding box 4 is fixedly connected to the right side of the base 1, a plurality of standard weight blocks 401 with the same weight are contained in the holding box 4, and the weight of the pull box.

The working principle is as follows:

during the use, at first, the friction surface is selected, the friction block 2 is pressed downwards, then the friction block 2 rotates, the friction surface of once selection can be changed when the friction block 2 rotates 90 degrees, the top surface of the friction block 2 is the friction surface of selection, because the upper surface of the friction block 2 is contacted with the lower surface of the limiting plate 104, the top spring 203 is in a compression state, the size of the upper, lower, front and back four side surfaces of the friction block 2 is smaller than the size of the through groove 105, the friction block 2 is loosened, under the action of the top spring 203, the friction block 2 ascends, and the friction surface at the top is contacted with the limiting plate 104 and pressed tightly.

After the friction surface is selected, the friction force experiment of weight change can be carried out by controlling the friction surface to be unchanged, and the specific method is as follows:

firstly, a hook of a spring dynamometer is connected with a hook ring 301, an empty pull box 3 is pulled to move, the reading of the spring dynamometer when the pull box 3 moves stably is read, the reading is the friction force at the moment, then standard weight blocks 401 are added into the pull box 3 one by one, the reading of the corresponding spring dynamometer when the pull box 3 moves stably is read, then the number of the standard weight blocks 401 in the pull box 3 is taken as a horizontal coordinate, the reading of the spring dynamometer is taken as a vertical coordinate to make a coordinate system, and because the weight of the pull box 3 is equal to the mass of the standard weight blocks 401, the reading of the spring dynamometer along with the change curve of the number of the standard weight blocks 401 in the pull box 3 is an inclined straight line, and the slope of the straight line is the friction coefficient of a friction surface.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A student of physics learns auxiliary device, its characterized in that: the friction block type steel wire drawing box comprises a base (1), friction blocks (2) and a drawing box (3), wherein a supporting plate (101) is symmetrically and fixedly connected to the upper surface of the base (1), a through track groove (102) is formed in the supporting plate (101), a vertical guide rod (103) is fixedly connected to the interior of the track groove (102), a limiting plate (104) is fixedly connected between the tops of the supporting plate (101), and a through groove (105) is formed in the limiting plate (104); the friction block (2) is of a cuboid structure, the side faces of the left end and the right end of the friction block (2) are square, the left end and the right end of the friction block (2) are rotatably connected with a rotating shaft (201), the other end of the rotating shaft (201) is fixedly connected with a lifting slider (202), the lifting slider (202) is slidably connected into a track groove (102), the lifting slider (202) is further slidably connected with a guide rod (103), a jacking spring (203) is sleeved on the guide rod (103) below the lifting slider (202), when the upper surface of the friction block (2) is in contact with the lower surface of a limiting plate (104), the jacking spring (203) is in a compression state, and the sizes of the upper side face, the lower side face, the front side face and the rear side face and the front side face of the lower side face of the; draw box (3) to place in logical groove (105), draw the bottom of box (3) and the upper surface contact of clutch blocks (2), draw the right side board outer wall rigid coupling of box (3) to have colluded ring (301).

2. The physical student learning aid of claim 1, wherein: the four corners of the lower surface of the base (1) are fixedly connected with suckers (106).

3. The physical student learning aid of claim 1, wherein: the bearing seat (204) is fixedly connected to the center of the left side surface and the right side surface of the friction block (2), and the rotating shaft (201) is rotatably connected with the bearing seat (204).

4. The physical student learning aid of claim 1, wherein: the roughness of the upper, lower, front and rear four side surfaces of the friction block (2) is different.

5. The physical student learning aid of claim 1, wherein: the novel multifunctional weight-bearing device is characterized by further comprising a containing box (4), wherein the containing box (4) is fixedly connected to the right side of the base (1), a plurality of standard weight blocks (401) with the same weight are contained in the containing box (4), and the weight of the pull box (3) is equal to that of one standard weight block (401).