CN211506884U

CN211506884U - Physics mechanics experiment teaching aid

Info

Publication number: CN211506884U
Application number: CN202020048362.9U
Authority: CN
Inventors: 陈新光; 范功怀
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-09-15
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses a physical mechanics experiment teaching aid in the technical field of teaching aids, which comprises a box body with a hollow interior, wherein two groups of supporting plates are vertically and fixedly connected at the top of the box body, a crossbeam is connected between the two groups of supporting plates, the outer wall of the crossbeam is provided with a detachable gravity block, one group of supporting plates is provided with a telescopic device, the telescopic device is provided with a pressure scale close to the output end of the gravity block, a clamping block is arranged on the box body, the top of the clamping block is detachably connected with a detection piece, the gravity block presses the top of the detection piece by self gravity, the telescopic device extends to exert thrust on the gravity block, the gravity block with known weight exerts the thrust on the side wall of the gravity block by the matching of the telescopic device and the pressure scale, the pressure scale displays the magnitude of the thrust, and the friction coefficient between the gravity block and the, the teaching mode is more vivid and is beneficial to teaching.

Description

Physics mechanics experiment teaching aid

Technical Field

The utility model relates to a teaching aid technical field specifically is a physics mechanics experiment teaching aid.

Background

The teaching is an important link for a school to achieve an education purpose and complete an education task, is also a main content of the education, has a plurality of knowledge intake ways beneficial to physical and mental development of students, becomes a way for wide application of education activities of the school in modern education, and various ways interact with each other to influence the development of the students, but a main class for the learning of the students is still classroom teaching at present, and the teaching is a cognitive activity essentially.

The auxiliary teaching means can promote the conversion of the two contradictory parties, so that the passive learning of students is converted into active teaching, active exploration and active learning. Therefore, a good teacher and a good teaching design should be made up and down to promote the conversion of contradictions.

In the study of physical mechanics, the friction coefficient of an object is too abstract, so that the study of students is difficult, the study time of the students is greatly wasted, the study efficiency is reduced, and the study score of the students is influenced.

Based on this, the utility model designs a physics mechanics experiment teaching aid to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a physics mechanics experiment teaching aid to in solving the study of providing in the above-mentioned background art physics mechanics, because the coefficient of friction of object is too abstract, lead to the problem of student's study difficulty.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a physics mechanics experiment teaching aid, includes inside hollow box body, the perpendicular rigid coupling in box body top has two sets of backup pads, is connected with the crossbeam between two sets of backup pads, the crossbeam outer wall is provided with detachable gravity piece, and wherein is a set of be provided with the telescopic equipment in the backup pad, the output that the telescopic equipment is close to the gravity piece is provided with the pressure balance, be provided with the grip block on the box body, the grip block top can be dismantled and be connected with the detection piece, the gravity piece relies on self gravity to press at the detection piece top, the telescopic equipment extension is exerted thrust to the gravity piece.

Preferably, the gravity block is provided with a through hole for the cross beam to penetrate through, and the inner diameter of the through hole is larger than the outer diameter of the cross beam.

Preferably, the inside swivelling joint of box body has the transmission shaft, transmission shaft outer wall spiral connection has the oblique slide at the inside horizontal migration of box body, the bottom of grip block is the arc structure, oblique top of slide to one side with the arc bottom butt of grip block, slide horizontal migration drives to one side the grip block goes up and down.

Preferably, the perpendicular rigid coupling in grip block top has two sets of risers, and is two sets of the riser top is provided with the diaphragm of fuse, and is two sets of the riser is close to the equal vertical sliding connection in one side each other and has the grip block, the spiro union has the screw rod on the diaphragm, screw rod one end and grip block are connected and are driven the grip block and be close to or keep away from rather than parallel diaphragm.

Preferably, a worm and a turbine are rotatably connected to the supporting plate, the worm and the turbine are meshed with each other, the telescopic device is installed on the turbine, and a ball body is arranged at the output end of the telescopic device.

Preferably, the turbine side wall is marked with scales in an annular array by taking the axis of the turbine side wall as a center, and the supporting plate is provided with an indicating needle aligned with one of the scales.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a gravity piece of known weight exerts gravity to detecting a top, exerts thrust to heavy force piece lateral wall in the cooperation through flexible equipment and pressure balance, and the pressure balance shows the size of thrust, can calculate the coefficient of friction between gravity piece and the detecting piece through the numerical value of thrust and gravity for the teaching mode is more lively, is favorable to the teaching.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments 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 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the components mounted on a set of support plates according to the present invention;

FIG. 3 is a schematic view of the gravity block structure of the present invention;

fig. 4 is a schematic structural diagram of the components of the clamping block of the present invention.

1. A box body; 2. a support plate; 21. a worm; 22. a turbine; 222. calibration; 23. an indicator needle; 3. a clamping block; 31. a vertical plate; 32. a transverse plate; 33. a clamping plate; 34. a screw; 4. a detection member; 5. a cross beam; 6. a gravity block; 61. a through hole; 7. a telescopic device; 8. a pressure scale; 81. a sphere; 9. a drive shaft; 10. an inclined slide seat.

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.

The utility model provides a physical mechanics experiment teaching aid, including inside hollow box body 1, the perpendicular rigid coupling in 1 top of box body has two sets of backup pads 2, be connected with crossbeam 5 between two sets of backup pads 2, crossbeam 5 outer wall is provided with detachable gravity piece 6, wherein be provided with telescopic device 7 on a set of backup pad 2, telescopic device 7 is provided with pressure balance 8 near the output of gravity piece 6, be provided with grip block 3 on the

box body

1, 3 tops of grip block can be dismantled and be connected with detection piece 4, gravity piece 6 relies on self gravity to press at detection piece 4 tops, telescopic device 7 extends and applys thrust to gravity piece 6.

Furthermore, a through hole 61 for the cross beam 5 to penetrate through is formed in the gravity block 6, the inner diameter of the through hole 61 is larger than the outer diameter of the cross beam 5, and the gravity block 6 can be close to or far away from the top of the box body 1.

Further, 1 inside swivelling joint of box body has

transmission shaft

9, 9 outer wall spiral connections of transmission shaft have at 1 inside horizontal migration's of box body oblique slide 10, grip block 3's bottom is the arc structure, oblique top of slide 10 and grip block 3's arc bottom butt to one side, slide 10 horizontal migration drives grip block 3 to go up and down to one side, grip block 3's decline is favorable to changing detection piece 4, be favorable to adapting to the detection piece 4 of different thickness and the butt of gravity piece 6.

Further, the perpendicular rigid coupling in 3 tops of grip block has two sets of risers 31, and two sets of risers 31 tops are provided with diaphragm 32 of fuse, and two sets of risers 31 are close to the equal vertical sliding connection in one side each other and have a grip block 33, and the spiro union has screw rod 34 on diaphragm 32, and screw rod 34 one end and grip block 33 are connected and are driven grip block 33 and be close to or keep away from rather than parallel diaphragm 32 for the top of the detection piece 4 of different grade type keeps unanimous all the time after being pressed from both sides tightly.

Further, a worm 21 and a worm wheel 22 are rotatably connected to the support plate 2, the worm 21 and the worm wheel 22 are meshed with each other, the telescopic device 7 is mounted on the worm wheel 22, and a ball 81 is arranged at the output end of the telescopic device 7 to facilitate simulating the application of oblique thrust to the gravity block 6.

Furthermore, the side wall of the turbine 22 is marked with scales 222 in an annular array by taking the axis as the center, and the supporting plate 2 is provided with the indicating needle 23 aligned with one of the scales 222, so that the inclination angle of the applied thrust can be observed conveniently.

The utility model discloses an embodiment:

the both ends that will detect piece 4 are placed respectively between corresponding two sets of diaphragm 32 and grip block 33, and rotatory screw rod 34, screw rod 34 drive grip block 33 rebound are close to the diaphragm 32 that is parallel to each other and realize pressing from both sides tight detection piece 4, and the detection piece 4 top that is pressed from both sides tightly is bottom butt with diaphragm 32, and its top keeps the parallel and level when realizing pressing from both sides tight different detection piece 4.

Rotatory transmission shaft 9, transmission shaft 9 adopts a lead screw, transmission shaft 9 is rotatory to be driven oblique slide 10 at the inside horizontal migration of box body 1, the horizontal migration of oblique slide 10 is through the inclined plane at its top and the arcwall cooperation of grip block 3 bottoms, drive 3 vertical lifts of grip block, 3 vertical lifts of grip block drive its top centre gripping 4 rises with 6 bottom butts of gravity piece, make and hang one section distance that rises at the gravity piece 6 of 5 outer walls of crossbeam, make crossbeam 5 and gravity piece 6 break away from the butt, thereby realize that gravity piece 6 exerts 4 tops of detection piece with its self whole gravity.

Rotatory worm 21 drives turbine 22 and rotates around its self central axis for the flexible direction change of the telescopic equipment 7 of its lateral wall installation, telescopic equipment 7's output is provided with pressure balance 8 and spheroid 81, telescopic equipment 7 extends the lateral wall butt that drives spheroid 81 and gravity piece 6, pressure balance 8 shows the pressure between telescopic equipment 7 and the spheroid 81, telescopic equipment 7 extends gradually and increases the pressure that pressure balance 8 shows vertical, it stops when reaching to promote the relative detection piece 4 of gravity piece 6 and remove, the inclination that shows of one of them scale alignment is aimed at through the gravity piece 6 and the pointer 23 of pressure numerical value and known weight this moment can calculate coefficient of friction.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to 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. The utility model provides a physical mechanics experiment teaching aid, includes inside hollow box body (1), its characterized in that: the perpendicular rigid coupling in box body (1) top has two sets of backup pads (2), is connected with crossbeam (5) between two sets of backup pads (2), crossbeam (5) outer wall is provided with detachable gravity piece (6), and wherein is a set of be provided with telescopic device (7) on backup pad (2), telescopic device (7) are close to the output of gravity piece (6) and are provided with pressure balance (8), be provided with grip block (3) on box body (1), grip block (3) top can be dismantled and be connected with detection piece (4), gravity piece (6) rely on self gravity to press at detection piece (4) top, thrust is applyed to gravity piece (6) in telescopic device (7) extension.

2. A teaching aid for physical mechanics experiments according to claim 1, which is characterized in that: and a through hole (61) for the cross beam (5) to penetrate through is formed in the gravity block (6), and the inner diameter of the through hole (61) is larger than the outer diameter of the cross beam (5).

3. A teaching aid for physical mechanics experiments according to claim 2, which is characterized in that: the utility model discloses a clamping block's structure, including box body (1), transmission shaft (9) outer wall spiral connection have oblique slide (10) at the inside horizontal migration of box body (1), the bottom of grip block (3) is the arc structure, oblique top of slide (10) and the arc bottom butt of grip block (3) to one side, slide (10) horizontal migration drives to one side grip block (3) go up and down.

4. A teaching aid for physical mechanics experiments according to claim 1, which is characterized in that: the perpendicular rigid coupling in grip block (3) top has two sets of risers (31), and is two sets of riser (31) top is provided with diaphragm (32) that fuse, and is two sets of riser (31) are close to the equal vertical sliding connection in one side each other and have grip block (33), the spiro union has screw rod (34) on diaphragm (32), screw rod (34) one end and grip block (33) are connected and are driven grip block (33) and be close to or keep away from rather than parallel diaphragm (32).

5. A teaching aid for physical mechanics experiments according to claim 1, which is characterized in that: the rotary connection has worm (21) and turbine (22) on backup pad (2), worm (21) and turbine (22) intermeshing, install on turbine (22) telescopic device (7), telescopic device's (7) output is provided with spheroid (81).

6. A teaching aid for physical mechanics experiments according to claim 5, which is characterized in that: scales (222) are marked on the side wall of the turbine (22) in an annular array by taking the axis of the turbine as the center, and an indicating needle (23) aligned with one scale (222) is arranged on the supporting plate (2).