CN209625567U - A kind of Portable dismountable lever balance experimental provision - Google Patents
A kind of Portable dismountable lever balance experimental provision Download PDFInfo
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- CN209625567U CN209625567U CN201920190783.2U CN201920190783U CN209625567U CN 209625567 U CN209625567 U CN 209625567U CN 201920190783 U CN201920190783 U CN 201920190783U CN 209625567 U CN209625567 U CN 209625567U
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- fixedly connected
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- dead lever
- truck dead
- pillar
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Abstract
The utility model discloses a kind of Portable dismountable lever balance experimental provisions of physics demonstration engineering device technique field, including pedestal, base top is fixedly connected with threaded block, pillar is fixedly connected in threaded block, post top portion is fixedly connected with turntable, turntable end is fixedly connected with shaft, roller end is fixedly connected with block plate, shaft side wall is fixedly connected with truck dead lever, the both ends of truck dead lever offer sliding rail respectively, extendable lever is slidably connected in sliding rail, fixation offers telescopic hole at the top of extendable lever, telescopic hole inner cavity is fixed with spring, one end of spring is fixedly connected with spring column, it is offered at the top of truck dead lever and replys hole, it replys the sliding of hole inner cavity and is equipped with mandril, extendable lever and truck dead lever rear wall are fixedly connected to link.The utility model component is detachable, and convenient for collecting and carrying, lever can extend, and saves space occupied, is conducive to the measurement of multi-group data.
Description
Technical field
The utility model relates to physics demonstration engineering device technique field, specially a kind of Portable dismountable lever balance experiment dress
It sets.
Background technique
In physics teaching, the theorem that lever principle can allow student more visually to understand lever is demonstrated, according to physics
The requirement of teaching, lever principle are one of principles important in physical knowledge.It is existing by technology under conditions of, Physical Education Teacher into
When the experimental demonstration of row lever principle, typically simulated using easy tool, by a small rod can be used, have
Possibility use a pencil, the quality that demonstration that can not be accurate and visual loads at the both ends of lever, and junior physics are taught
Many concepts, rule in material, law are all to be introduced, exported and verified by testing, and especially in mechanics teaching, are ground
When studying carefully lever equilibrium condition, the length of lever be it is non-adjustable, to obtain multi-group data just needs the lever of different length to complete,
The disadvantage is that it is big to take up space, not portable therefore traditional lever principle apparatus for demonstrating needs to improve.
Currently, application No. is the Chinese patents of CN201420472791.3 to disclose a kind of lever balance experimental provision, packet
Experimental bench and several hook codes are included, vertically arranged column is fixedly installed on experimental bench, is rotatablely installed on column by articulated shaft
There is lever, the two sides that the articulated shaft is located on lever are equipped with several holes for hoist for being used to hook hook code, are fixedly mounted on column
There is horizontally disposed scale, the two sides that articulated shaft is located on scale are equipped with vernier made of transparent material, and vernier is equipped with perpendicular
To the indicating arm of extension.Although the device can help student and teacher to facilitate experiment, the device is non-dismountable, has used
Bad folding and unfolding after finishing, it is more not portable.
Based on this, the utility model devises a kind of Portable dismountable lever balance experimental provision, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of Portable dismountable lever balance experimental provisions, to solve above-mentioned background
The length of the lever proposed in technology be it is non-adjustable, to obtain multi-group data just needs the lever of different length to complete, and occupies sky
Between it is big, device is non-dismountable, bad folding and unfolding after use, more not portable problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of Portable dismountable lever balance experiment
Device, including pedestal, the base top are fixedly connected with threaded block, and pillar, the branch are fixedly connected in the threaded block
Column top is fixedly connected with turntable, and the turntable end is fixedly connected with shaft, and the roller end is fixedly connected with gear
Disk, the shaft side wall are fixedly connected with truck dead lever, and the both ends of the truck dead lever offer sliding rail respectively, in the sliding rail
Extendable lever is slidably connected, fixation offers telescopic hole at the top of the extendable lever, and the telescopic hole inner cavity is fixed with bullet
Spring, one end of the spring are fixedly connected with spring column, offer at the top of the truck dead lever and reply hole, and the reply hole inner cavity is sliding
Dynamic to be equipped with mandril, the extendable lever and truck dead lever rear wall are fixedly connected to link.
Preferably, the truck dead lever and extendable lever side wall are equipped with graduation mark, and the graduation mark outer wall is fixedly connected with
Transparent protective layer, the link are corresponding with graduation mark.
Preferably, the extendable lever and truck dead lever rear wall are fixedly connected to link, the link and graduation mark pair
It answers, the truck dead lever bottom is fixedly connected with pointer, and the pillar side wall is fixedly connected with control board.
Preferably, it is fixedly connected with button at the top of the mandril, the mandril bottom is fixedly connected with top plate, the top plate
Diameter is greater than flexible bore dia.
Preferably, the block plate is to be threadedly coupled with shaft, and the posts bottom offers screw thread, the pillar and screw thread
Seat is threaded connection.
Preferably, the pedestal lower part is cavity structure, and the pedestal is integrated with threaded block to be made.
Compared with prior art, the utility model has the beneficial effects that the utility model pillar and pedestal can screw thread dismantle,
By backing out block plate, truck dead lever can be removed, convenient for collecting and carrying can extend the length of lever by extendable lever
Degree saves space occupied, is conducive to the measurement and student's perception of multi-group data.By pointer and control board, facilitate observation lever
Whether balance is in a horizontal position, less reference when it is accurate, lever length is convenient for measuring by graduation mark.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the utility model main perspective structural schematic diagram；
Fig. 2 is the utility model back angle partial cutaway structural schematic diagram；
Fig. 3 is the portion the utility model A enlarged structure schematic diagram；
Fig. 4 is the utility model depression angle structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- pedestal, 2- threaded block, 3- pillar, 4- turntable, 5- shaft, 6- block plate, 7- truck dead lever, 8- sliding rail, 9- stretch
Contracting lever, 10- telescopic hole, 11- spring, 12- spring column, 13- reply hole, 14- mandril, 15- link, 16- graduation mark, 17- are transparent
Protective layer, 18- pointer, 19- control board, 20- button, 21- top plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, 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 embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of Portable dismountable lever balance experiment dress
It sets, including pedestal 1, threaded block 2 is fixedly connected at the top of pedestal 1, pillar 3 is fixedly connected in threaded block 2, is consolidated at the top of pillar 3
Surely it is connected with turntable 4,4 end of turntable is fixedly connected with shaft 5, and 5 end of shaft is fixedly connected with block plate 6,5 side wall of shaft
It is fixedly connected with truck dead lever 7, the both ends of truck dead lever 7 offer sliding rail 8 respectively, slidably connect extendable lever in sliding rail 8
9, fixation offers telescopic hole 10 at the top of extendable lever 9, and 10 inner cavity of telescopic hole is fixed with spring 11, and one end of spring 11 is fixed
It is connected with spring column 12, is offered at the top of truck dead lever 7 and replys hole 13, the sliding of 13 inner cavity of hole is replied and is equipped with mandril 14, extendable lever 9
Link 15 is fixedly connected to 7 rear wall of truck dead lever.
Wherein, truck dead lever 7 and 9 side wall of extendable lever are equipped with graduation mark 16, and 16 outer wall of graduation mark is fixedly connected with transparent
Protective layer 17, link 15 are corresponding with graduation mark 16.Extendable lever 9 and 7 rear wall of truck dead lever are fixedly connected to link 15, link
15 is corresponding with graduation mark 16, and 7 bottom of truck dead lever is fixedly connected with pointer 18, and 3 side wall of pillar is fixedly connected with control board 19.Top
Button 20 is fixedly connected at the top of bar 14,14 bottom of mandril is fixedly connected with top plate 21, and it is straight that 21 diameter of top plate is greater than telescopic hole 10
Diameter.Block plate 6 is to be threadedly coupled with shaft 5, and 3 bottom of pillar offers screw thread, and pillar 3 is to be threadedly coupled with threaded block 2.Pedestal 1
Lower part is cavity structure, and pedestal 1 is integrated with threaded block 2 and makes.
One concrete application of the present embodiment are as follows: the utility model, will by the way that pillar 3 to be threaded in threaded block 2
7 sets of truck dead lever, in 5 outer wall of shaft, block plate 6 are screwed in shaft 5, experimental provision are completed, and the device is detachable, side
Just it is put into chest or sack and carries, storage is dismantled after use, facilitates instrument to maintain, also avoids device and topple over when not used
Instrument damage.After assembling, counterweight, corresponding 16 convenience of graduation mark of link 15 can be hung by the link 15 of 7 rear wall of truck dead lever
Reading registration and calculating can pull out extendable lever 9 if 7 length of truck dead lever is inadequate out of truck dead lever 7 sliding rail 8,
Convenient for experiment.At the reply hole 13 that the telescopic hole 10 of extendable lever 9 reaches truck dead lever 7, the spring 11 in telescopic hole 10 is pushed away
Column 12 of moving, which enters, replys in hole 13, and spring column 12, which blocks extendable lever 9, prevents it from being moved forward and backward, will while spring column 12 bounces
Top plate 21 and mandril 14 jack up, and after use, button 20 is pressed, and push top plate 21 to move down, spring column 12 is pushed back and is stretched
In shrinkage cavity 10, top plate 21 not can enter telescopic hole 10, be recoverable to extendable lever 9 at this time, convenient for collecting.The utility model pillar
3 with pedestal 1 can screw thread dismantle, by backing out block plate 6, truck dead lever 7 can be removed, it is convenient for collecting and carry, by stretching
Contracting lever 9 can extend the length of lever, save space, be conducive to the measurement and student's perception of multi-group data.Pass through pointer 18
With control board 19, facilitate whether observation lever balances and be in a horizontal position, less reference when it is accurate, pass through 16 convenience of graduation mark
Measure lever length.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of Portable dismountable lever balance experimental provision, including pedestal (1), it is characterised in that: solid at the top of the pedestal (1)
Surely it is connected with threaded block (2), is fixedly connected with pillar (3) in the threaded block (2), is fixedly connected at the top of the pillar (3)
Turntable (4), turntable (4) end are fixedly connected with shaft (5), and shaft (5) end is fixedly connected with block plate
(6), shaft (5) side wall is fixedly connected with truck dead lever (7), and the both ends of the truck dead lever (7) offer sliding rail respectively
(8), it is slidably connected extendable lever (9) in the sliding rail (8), fixation offers telescopic hole at the top of the extendable lever (9)
(10), telescopic hole (10) inner cavity is fixed with spring (11), and one end of the spring (11) is fixedly connected with spring column (12),
It is offered at the top of the truck dead lever (7) and replys hole (13), the sliding of the reply hole (13) inner cavity is equipped with mandril (14), described to stretch
Contracting lever (9) and truck dead lever (7) rear wall are fixedly connected to link (15).
2. a kind of Portable dismountable lever balance experimental provision according to claim 1, it is characterised in that: the fixed thick stick
Bar (7) and extendable lever (9) side wall are equipped with graduation mark (16), and graduation mark (16) outer wall is fixedly connected with transparent protective layer
(17), the link (15) is corresponding with graduation mark (16).
3. a kind of Portable dismountable lever balance experimental provision according to claim 1, it is characterised in that: the flexible thick stick
Bar (9) and truck dead lever (7) rear wall are fixedly connected to link (15), and the link (15) is corresponding with graduation mark (16), described
Truck dead lever (7) bottom is fixedly connected with pointer (18), and pillar (3) side wall is fixedly connected with control board (19).
4. a kind of Portable dismountable lever balance experimental provision according to claim 1, it is characterised in that: the mandril
(14) top is fixedly connected with button (20), and mandril (14) bottom is fixedly connected with top plate (21), and the top plate (21) is straight
Diameter is greater than telescopic hole (10) diameter.
5. a kind of Portable dismountable lever balance experimental provision according to claim 1, it is characterised in that: the block plate
It (6) is to be threadedly coupled with shaft (5), pillar (3) bottom offers screw thread, and the pillar (3) and threaded block (2) are screw thread
Connection.
6. a kind of Portable dismountable lever balance experimental provision according to claim 1, it is characterised in that: the pedestal
(1) lower part is cavity structure, and the pedestal (1) is integrated with threaded block (2) makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920190783.2U CN209625567U (en) | 2019-02-12 | 2019-02-12 | A kind of Portable dismountable lever balance experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920190783.2U CN209625567U (en) | 2019-02-12 | 2019-02-12 | A kind of Portable dismountable lever balance experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209625567U true CN209625567U (en) | 2019-11-12 |
Family
ID=68453264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920190783.2U Expired - Fee Related CN209625567U (en) | 2019-02-12 | 2019-02-12 | A kind of Portable dismountable lever balance experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209625567U (en) |
-
2019
- 2019-02-12 CN CN201920190783.2U patent/CN209625567U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 Termination date: 20210212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |