CN209625559U

CN209625559U - A kind of novel Middle School Physics friction force demonstration device

Info

Publication number: CN209625559U
Application number: CN201820511524.0U
Authority: CN
Inventors: 庞可
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2019-11-12
Anticipated expiration: 2028-04-12

Abstract

The utility model relates to Physical Experiment apparatus fields, especially a kind of novel Middle School Physics friction force demonstration device, including pedestal, smooth guide, frosted guide rail, sliding block, push plate, 2 T-rails are uniformly provided on the pedestal, wherein one of left side is frosted guide rail, one of right side is smooth guide, sliding block is cased on smooth guide and frosted guide rail, the pedestal both ends are equipped with perpendicular baffle, 3 sliding bars are connected between two baffles, sliding bar is equipped with push plate, and compressed spring is fixed between push plate and upper side baffle and is covered on sliding bar.The structure design of the utility model is reasonable, visual in image carry out frictional force experimental demonstration can be compared by different guide rails, and specific analysis verifying is carried out to frictional force by spring-compressed distance and sliding block sliding distance, easy to use, experimental demonstration effect is good.

Description

A kind of novel Middle School Physics friction force demonstration device

Technical field

The utility model relates to Physical Experiment apparatus field, especially a kind of novel Middle School Physics friction force demonstration device.

Background technique

Frictional force is one of the important course in Middle School Physics, is difficult to manage since the theoretical knowledge of frictional force is more abstract Solution, student, which learns to exist when the course, understands difficulty, and teacher is needed through Physical Experiment in the explanation of frictional force come intuitive shape The demonstration aided education of elephant, to deepen the understanding of student, but existing friction experiment device be one by sliding block, module, The simple experimental device of drawstring, tensiometer composition, although playing certain aided education effect, experiment simply cannot be fine Visual pattern demonstrate, and lack comparative, experiment effect is unsatisfactory.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical disadvantages to provide a kind of novel Middle School Physics friction force demonstration Device.Can by the visual in image carry out frictional force experimental demonstration of comparison of different guide rails, and by spring-compressed apart from and Sliding block sliding distance carries out specific analysis verifying to frictional force, and easy to use, experimental demonstration effect is good.

The utility model solves the technical solution that technical problem uses are as follows: a kind of novel Middle School Physics friction force demonstration dress It sets, including pedestal, smooth guide, frosted guide rail, sliding block, push plate, is uniformly provided with 2 T-rails on the pedestal, wherein left side One be frosted guide rail, one of right side is smooth guide, is cased with sliding block, smooth guide on smooth guide and frosted guide rail Be equipped with graduation mark on the pedestal on the outside of frosted guide rail, the pedestal both ends are equipped with perpendicular baffle, two baffles it Between be connected with 3 sliding bars, sliding bar is equipped with push plate, and the push plate is equipped with the sliding eye to match with sliding bar, push plate It is fixed with compressed spring between upper side baffle and covers on sliding bar, is equipped in the push plate and sliding block and T-rail The T-slot to match.The present apparatus in use, smooth guide and frosted guide rail are T shape, slide block set when above under the effect of gravity It is tightly combined with guide pass, and when sliding block slides is slided straight, direction is clear and intuitive, and sliding block is contacted with push plate to simultaneously one Post-tensioning certain distance is played, unclamps push plate, under the action of compressed spring, push plate will push two sliding block forward slips, by smooth The moving distance of guide rail and frosted guide rail top shoe can visual pattern demonstrate out effect of the frictional force to slide block movement, it is comparative By force, can deepen understanding of the student to frictional force knowledge, pedestal both ends are equipped with baffle, can anti-limited slip block skid off outside pedestal, use letter Just, experimental demonstration effect is good for folk prescription.

The push plate, baffle are flushed with the top surface of sliding block.

Beneficial effect possessed by the utility model is: the structure design of the utility model is reasonable, can pass through different guide rails The visual in image carry out frictional force experimental demonstration of comparison, and by spring-compressed apart from and sliding block sliding distance to frictional force into The specific analysis verifying of row, easy to use, experimental demonstration effect is good.

Detailed description of the invention

Attached drawing 1 is the structural schematic diagram of the utility model.

Attached drawing 2 is the guide rail of the utility model and the structural schematic diagram of sliding block.

Attached drawing 3 is the structural schematic diagram of the push plate of the utility model.

Specific embodiment

1 ~ attached drawing 3 is described below the utility model with reference to the accompanying drawing.

As shown in Fig. 1 ~ Fig. 3, the utility model includes pedestal 1, smooth guide 2, frosted guide rail 3, sliding block 4, push plate 7, institute It states and is uniformly provided with 2 T-rails on pedestal 1, wherein one of left side is frosted guide rail 3, one of right side is smooth guide 2, It is cased with sliding block 4 on smooth guide 2 and frosted guide rail 3, is equipped with scale on the pedestal 1 in 3 outside of smooth guide 2 and frosted guide rail Line, 1 both ends of pedestal are equipped with perpendicular baffle 5, and 3 sliding bars 6 are connected between two baffles 5, are set on sliding bar 6 There is push plate 7, the push plate 7 is equipped with the sliding eye 10 to match with sliding bar 6, is fixed between push plate 7 and upper side baffle 5 It compressed spring 8 and covers on sliding bar 6, the T-slot 9 to match with T-rail is equipped in the push plate 7 and sliding block 4.This dress It sets in use, smooth guide 2 and frosted guide rail 3 are T shape, 4 sets of sliding block tight in conjunction with guide pass under the effect of gravity when above It is close, and when sliding block 4 slides, is slided straight, direction is clear and intuitive, and sliding block 4 is contacted with push plate 7 and post-tensioning is certain together Distance unclamps push plate 7, and under the action of compressed spring 8, push plate 7 will push two sliding blocks, 4 forward slip, pass through 2 He of smooth guide The moving distance of 3 top shoe 4 of frosted guide rail can visual pattern the effect demonstrated out frictional force and sliding block 4 is moved, it is comparative strong, Can deepen understanding of the student to frictional force knowledge, 1 both ends of pedestal are equipped with baffle 5, can anti-limited slip block 4 skid off outside pedestal 1, use letter Just, experimental demonstration effect is good for folk prescription.

The push plate 7, baffle 5 are flushed with the top surface of sliding block 4.

In use, sliding block 4 and push plate 7 are moved back simultaneously, push plate 7, under the action of compressed spring 8, push plate 7 are then unclamped Will push sliding block 4 Forward, the sliding distance of the compression distance of recording compressed spring 8 and two sliding blocks 4, can to frictional force into The visual in image experimental demonstration of row deepens understanding of the student to frictional force.

Claims

1. a kind of novel Middle School Physics friction force demonstration device, including pedestal, smooth guide, frosted guide rail, sliding block, push plate, It is characterized in that: being uniformly provided with 2 T-rails on the pedestal, wherein one of left side is frosted guide rail, one of right side is light Guide rail is slided, sliding block is cased on smooth guide and frosted guide rail, is equipped with quarter on the pedestal on the outside of smooth guide and frosted guide rail Line is spent, the pedestal both ends are equipped with perpendicular baffle, 3 sliding bars are connected between two baffles, and sliding bar is equipped with Push plate, the push plate are equipped with the sliding eye to match with sliding bar, are fixed with compressed spring between push plate and upper side baffle And cover on sliding bar, the T-slot to match with T-rail is equipped in the push plate and sliding block.

2. a kind of novel Middle School Physics friction force demonstration device according to claim 1, it is characterised in that: the push plate, Baffle is flushed with the top surface of sliding block.