CN207529562U

CN207529562U - A kind of lever demonstration teaching appliance for Physical Experiment

Info

Publication number: CN207529562U
Application number: CN201720933681.6U
Authority: CN
Inventors: 郭家睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-29
Filing date: 2017-07-29
Publication date: 2018-06-22
Anticipated expiration: 2027-07-29

Abstract

The utility model discloses a kind of lever demonstration teaching appliances for Physical Experiment, including fixed seat, straight slot is offered at the top of the fixed seat, the front and rear sides of the straight slot inner wall are connected by bull stick, balance plate is socketed on the bull stick, both sides at the top of the balance plate are fixedly connected by bottom of the mounting blocks respectively with two pallets, the front and rear sides of the pallet inner wall offer sliding slot, the both sides of the sliding slot inner wall are connected by slide bar, in the sliding slot and are socketed on slide bar and are slidably connected sliding block.The utility model passes through the improvement to pressing plate, when stirring two pressing plates backwards, it can facilitate and object is placed between two pressing plates, then pressing plate is unclamped, under the action of recoil of spring power is squeezed, object can be clamped, and garter spring is socketed on telescopic rod, the stability between two pressing plates and opposite active force can be further improved, is clamped at this point, can stablize object.

Description

A kind of lever demonstration teaching appliance for Physical Experiment

Technical field

The utility model is related to teaching aid technical fields, specially a kind of lever demonstration teaching appliance for Physical Experiment.

Background technology

Physics is the research motion of matter most typically subject of rule and substance basic structure.As taking the lead for natural science Subject, physics research is greatly to universe, the as low as most basic forms of motion of all substances such as elementary particle and rule, therefore become The Research foundation of other each natural branch of science, in order to study the interaction of power, can generally use lever on Physics Classroom Demonstration teaching aid.

Two objects when in use, are usually directly placed in pallet, although can by existing lever demonstration teaching appliance Experiment is completed, but object is not fixed in pallet, so as to easily shake, so as to affect the normal of Physical Experiment Data.

Utility model content

（One）The technical issues of solution

In view of the deficiencies of the prior art, the utility model provides a kind of lever demonstration teaching appliance for Physical Experiment, solution The problem of lever demonstration teaching appliance inconvenience fixed object of having determined.

（Two）Technical solution

To achieve the above object, the utility model provides following technical solution：A kind of lever for Physical Experiment is demonstrated Teaching aid including fixed seat, offers straight slot at the top of the fixed seat, the front and rear sides of the straight slot inner wall are connected by bull stick It connects, is socketed with balance plate on the bull stick, the both sides at the top of the balance plate pass through the mounting blocks bottom with two pallets respectively Portion is fixedly connected, and the front and rear sides of the pallet inner wall offer sliding slot, and the both sides of the sliding slot inner wall are connected by slide bar, It in the sliding slot and is socketed on slide bar and slidably connects sliding block, extruding is socketed on the slide bar and between two sliding blocks Spring, it is described squeeze spring both ends be fixedly connected respectively with two opposite sides of sliding block, and four sliding blocks with two be one The opposite side of group is connected by pressing plate, the opposite side of two pressing plates by telescopic rod respectively with pallet inner wall Both sides are flexibly connected, and are socketed with garter spring on the telescopic rod, the both ends of the garter spring respectively with the inner wall of pallet and The side of pressing plate is fixedly connected.

Preferably, the front and rear sides of the pressing plate are overlapped on the front and rear sides of pallet inner wall respectively, and two pressing plates are opposite Side be fixedly connected with non-slip mat.

Preferably, swinging plate is fixedly connected at the top of the pressing plate, and during the bottom of swinging plate is located at the top of pressing plate Between position.

Preferably, the bottom of the fixed seat is fixedly connected with bearing block, and the area and fixed seat of bearing block upper surface The area equation of bottom.

Preferably, it is socketed on bull stick, and balance plate is fixedly attached on bull stick in the middle part of the balance plate.

Preferably, the both ends of the slide bar are located at the middle part of sliding slot inner wall both sides respectively, and slide bar is interspersed in sliding block Portion.

（Three）Advantageous effect

The utility model provides a kind of lever demonstration teaching appliance for Physical Experiment.Has following advantageous effect：

（1）, the utility model by the improvement to pressing plate, when stirring two pressing plates backwards, can facilitate and put object It puts between two pressing plates, then unclamps pressing plate, under the action of recoil of spring power is squeezed, can make two pressing plates are opposite to move It is dynamic, so as to which object is clamped, lever experiment is carried out at this point, can stablize.

（2）, the utility model by the improvement to pressing plate, since the opposite side of two pressing plates is distinguished by telescopic rod Be flexibly connected with the both sides of pallet inner wall, and garter spring be socketed on telescopic rod, can further improve two pressing plates it Between stability and opposite active force, at this point, can make object stablize be clamped.

Description of the drawings

Fig. 1 is the sectional view of the utility model structure top view；

Fig. 2 is the front view of the utility model structure.

In figure：1 fixed seat, 2 straight slots, 3 bull sticks, 4 balance plates, 5 mounting blocks, 6 pallets, 7 sliding slots, 8 slide bars, 9 sliding blocks, 10 are squeezed Pressing spring, 11 pressing plates, 12 telescopic rods, 13 garter springs, 14 non-slip mats, 15 swinging plates, 16 bearing blocks.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

As shown in Figs. 1-2, the utility model provides a kind of technical solution：A kind of lever for Physical Experiment demonstrates religion Tool, including fixed seat 1, the bottom of fixed seat 1 is fixedly connected with bearing block 16, and the area and fixed seat of 16 upper surface of bearing block The area equation of 1 bottom by setting bearing block 16 in the bottom of fixed seat 1, can increase fixed seat 1 and place on the table Stability, the top of fixed seat 1 offer straight slot 2, and the front and rear sides of 2 inner wall of straight slot are connected by bull stick 3, are socketed on bull stick 3 There is balance plate 4, the middle part of balance plate 4 is socketed on bull stick 3, and balance plate 4 is fixedly attached on bull stick 3,4 top of balance plate Both sides are fixedly connected by bottom of the mounting blocks 5 respectively with two pallets 6, by the way that balance plate 4 is fixedly attached to bull stick 3 Middle part can make balance plate 4 that two pallets 6 be made to stablize the object for driving it internal and carry out lever experiment, 6 inner wall of pallet it is front and rear Both sides offer sliding slot 7, and the both sides of 7 inner wall of sliding slot are connected by slide bar 8, in sliding slot 7 and are socketed on slide bar 8 and are slidably connected There is sliding block 9, the both ends of slide bar 8 are located at the middle part of 7 inner wall both sides of sliding slot respectively, and slide bar 8 is interspersed in the middle part of sliding block 9, slide bar 8 It is upper and be socketed between two sliding blocks 9 and squeeze spring 10, squeeze the both ends of spring 10 respectively opposite with two sliding blocks 9 one Side is fixedly connected, and four sliding blocks 9 are connected for one group of opposite side with two by pressing plate 11, by by the two of slide bar 8 End is separately positioned on the middle part of 7 inner wall both sides of sliding slot, and slide bar 8 is interspersed in the middle part of sliding block 9, can make sliding block 9 in sliding slot 7 Interior stabilized zone dynamic pressure plate 11 is moved, the opposite side of two pressing plates 11 by telescopic rod 12 respectively with 6 inner wall of pallet Both sides are flexibly connected, and are socketed with garter spring 13 on telescopic rod 12, the both ends of garter spring 13 respectively with the inner wall and pressure of pallet 6 The side of plate 11 is fixedly connected, and the front and rear sides of pressing plate 11 are overlapped on the front and rear sides of 6 inner wall of pallet, and two pressing plates 11 respectively Opposite side has been fixedly connected with non-slip mat 14, and the top of pressing plate 11 is fixedly connected with swinging plate 15, and the bottom of swinging plate 15 Portion is located at the centre position at 11 top of pressing plate, by being respectively provided with non-slip mat 14 two opposite sides of pressing plate 11, can increase Two pressing plates 11 are to the active force of object, and the swinging plate 15 at 11 top of pressing plate can facilitate and push pressing plate 11, by pressure The improvement of plate 11 when stirring two pressing plates 11 backwards, can facilitate between object is placed on two pressing plates 11, then unclamp Pressing plate 11 under the action of 10 screen resilience of spring is squeezed, can relatively move two pressing plates 11, so as to which object is pressed from both sides Tightly, lever experiment is carried out at this point, can stablize, by the improvement to pressing plate 11, since the opposite side of two pressing plates 11 is logical Both sides of the telescopic rod 12 respectively with 6 inner wall of pallet are crossed to be flexibly connected, and be socketed with garter spring 13, Neng Goujin on telescopic rod 12 One step improves the stability and opposite active force between two pressing plates 11, is clamped at this point, can stablize object.

Operation principle：First backwards to two pressing plates 11 are pulled, it can separate two pressing plates 11, at this time be placed on object Between two pressing plates 11, after unclamping pressing plate 11, under the action of 13 screen resilience of spring 10 and garter spring is squeezed, two can be made A pressing plate 11 clamps object, and lever experiment is completed so as to stablize.

It can to sum up obtain, this is used for the lever demonstration teaching appliance of Physical Experiment, by the improvement to pressing plate 11, when stirring two backwards It during a pressing plate 11, can facilitate between object is placed on two pressing plates 11, then unclamp pressing plate 11, be sprung back squeezing spring 10 It under the action of power, can relatively move two pressing plates 11, so as to which object is clamped, at this point, carry out lever can be stablized Experiment, by the improvement to pressing plate 11, due to the opposite side of two pressing plates 11 by telescopic rod 12 respectively with 6 inner wall of pallet Both sides flexible connection, and garter spring 13 is socketed on telescopic rod 12, can further improved between two pressing plates 11 Stability and opposite active force are clamped at this point, can stablize object.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of lever demonstration teaching appliance for Physical Experiment, including fixed seat（1）, it is characterised in that：The fixed seat（1）'s Top offers straight slot（2）, the straight slot（2）The front and rear sides of inner wall pass through bull stick（3）Connection, the bull stick（3）Upper socket There is balance plate（4）, the balance plate（4）The both sides at top pass through mounting blocks（5）Respectively with two pallets（6）Bottom fix Connection, the pallet（6）The front and rear sides of inner wall offer sliding slot（7）, the sliding slot（7）The both sides of inner wall pass through slide bar （8）Connection, the sliding slot（7）It is interior and be socketed in slide bar（8）On slidably connect sliding block（9）, the slide bar（8）Above and positioned at two A sliding block（9）Between be socketed with extruding spring（10）, the extruding spring（10）Both ends respectively with two sliding blocks（9）Opposite Side is fixedly connected, and four sliding blocks（9）Pass through pressing plate for one group of opposite side with two（11）Connection, two pressures Plate（11）Opposite side passes through telescopic rod（12）Respectively with pallet（6）The both sides flexible connection of inner wall, the telescopic rod （12）On be socketed with garter spring（13）, the garter spring（13）Both ends respectively with pallet（6）Inner wall and pressing plate（11） Side be fixedly connected.

2. a kind of lever demonstration teaching appliance for Physical Experiment according to claim 1, it is characterised in that：The pressing plate （11）Front and rear sides be overlapped on pallet respectively（6）The front and rear sides of inner wall, and two pressing plates（11）Opposite side is fixed It is connected with non-slip mat（14）.

3. a kind of lever demonstration teaching appliance for Physical Experiment according to claim 1, it is characterised in that：The pressing plate （11）Top be fixedly connected with swinging plate（15）, and swinging plate（15）Bottom be located at pressing plate（11）The centre position at top.

4. a kind of lever demonstration teaching appliance for Physical Experiment according to claim 1, it is characterised in that：The fixed seat （1）Bottom be fixedly connected with bearing block（16）, and bearing block（16）The area and fixed seat of upper surface（1）The area phase of bottom Deng.

5. a kind of lever demonstration teaching appliance for Physical Experiment according to claim 1, it is characterised in that：The balance plate （4）Middle part be socketed in bull stick（3）On, and balance plate（4）It is fixedly attached to bull stick（3）On.

6. a kind of lever demonstration teaching appliance for Physical Experiment according to claim 1, it is characterised in that：The slide bar （8）Both ends respectively be located at sliding slot（7）The middle part of inner wall both sides, and slide bar（8）It is interspersed in sliding block（9）Middle part.