CN207409166U - A kind of section space-efficient lever principle apparatus for demonstrating - Google Patents
A kind of section space-efficient lever principle apparatus for demonstrating Download PDFInfo
- Publication number
- CN207409166U CN207409166U CN201720829727.XU CN201720829727U CN207409166U CN 207409166 U CN207409166 U CN 207409166U CN 201720829727 U CN201720829727 U CN 201720829727U CN 207409166 U CN207409166 U CN 207409166U
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- China
- Prior art keywords
- turn hole
- cross bar
- counterweight
- demonstrating
- connecting rod
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Abstract
A kind of section space-efficient lever principle apparatus for demonstrating, include cross bar and counterweight, it is characterized in that, cross bar intermediate rear face is provided with turn hole, rotation connection is provided with shaft in turn hole, shaft one end is extended to outside turn hole, shaft has been wholely set connecting rod towards turn hole outside end, sucker is provided among connecting rod, top is provided with hook in connecting rod, it is evenly distributed before the cross bar of turn hole both sides to be provided with jack, cross bar both ends are respectively arranged with a storage box, lid is provided in the storage box, counterweight front end face sets fluted, magnet is provided in groove, the insertion section with groove cooperation is provided with behind counterweight, use a kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, not only save the presentation space of lever demonstration device, also reduce the labor intensity of teaching.
Description
Technical field
The utility model is related to physics teaching instrument more particularly to a kind of section space-efficient lever principle apparatus for demonstrating.
Background technology
At present, in lever used for physics theory teaching, lever demonstration device is often used, common equipment is a strut
A cross bar is hinged above, and evenly distributed setting hanging hole on cross bar needs to hang over counterweight into the hanging hole above cross bar according to experiment
On, the counterweight upper and lower side of lever experiment is equipped with hook, in order to raise the price in testing, but this traditional lever demonstration dress
It is larger to put occupied space, and traditional lever demonstration device volume is larger, and carrying is inconvenient, and difficulty is brought to teaching.
Utility model content
The purpose of this utility model is that in place of overcome the deficiencies in the prior art, it is former to provide a kind of section space-efficient lever
Apparatus for demonstrating is managed, can not only save the presentation space of lever demonstration device, the labor intensity of teaching can also be reduced.
A kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, includes cross bar and counterweight, special
Sign is that the cross bar intermediate rear face is provided with turn hole, is rotatablely connected in the turn hole and is provided with shaft, the shaft
One end is extended to outside turn hole, and the shaft has been wholely set connecting rod towards turn hole outside end, in the connecting rod
Between be fixedly installed sucker, for the sucker towards the cross bar back side, top has been wholely set hook in the connecting rod, described
Turn hole both sides cross bar before it is evenly distributed be provided with jack, the cross bar both ends are respectively arranged with a storage box, institute
Lid is provided in the storage box stated, the counterweight front end face sets fluted, fixed setting in the groove and jack
There is magnet, the insertion section with groove cooperation is provided with behind the counterweight, in use, according to on-the-spot teaching place equipment feelings
Condition may be selected to hang the device or by sucker suction on blackboard, then be needed counterweight passing through insertion section according to experiment
It is inserted into jack, if necessary to raise the price in same position, directly the insertion section of counterweight can be inserted into groove and is raised the price, not
In use, counterweight can be put into Storage Box.
Preferably, the insertion section is irony, can prevent counterweight from coming off out of groove and jack.
A kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, overall structure is simple, operates with
Convenient, stability is good, and reliability is high.Using it is described in the utility model it is a kind of section space-efficient lever principle apparatus for demonstrating, no
The presentation space of lever demonstration device is only saved, also reduces the labor intensity of teaching.
Description of the drawings
Attached drawing 1 is a kind of structure diagram for saving space-efficient lever principle apparatus for demonstrating described in the utility model.It is attached
Fig. 2 is a kind of structural representation of counterweight and insertion section for saving space-efficient lever principle apparatus for demonstrating described in the utility model
Figure.
1- links up with 2- sucker 3- connecting rod 4- turn hole 5- cross bar 6- Storage Box 7- shaft 8- jacks
9- counterweight 10- magnet 11- insertion sections 12- grooves.
Specific embodiment
Referring now to attached drawing 1 and attached drawing 2, it is described in conjunction with the embodiments as follows：A kind of section space-efficient lever principle apparatus for demonstrating,
Include cross bar 5 and counterweight 9, which is characterized in that 5 intermediate rear face of cross bar is provided with turn hole 4, turns in the turn hole 4
Dynamic to be connected with shaft 7, described 7 one end of shaft extends to 4 outside of turn hole, and the shaft 7 is towards 4 outside end of turn hole
Be wholely set connecting rod 3, be fixedly installed sucker 2 among the connecting rod 3, the sucker 2 towards 5 back side of cross bar,
Top has been wholely set hook 1 in the connecting rod 3,5 front of cross bar of 4 both sides of turn hole is evenly distributed be provided with it is slotting
Hole 8,5 both ends of cross bar are respectively arranged with a storage box 6, lid 13, the weight are provided in the storage box 6
9 front end faces of code set fluted 12, and magnet 10 is fixedly installed in the groove 12 and jack 8, and the counterweight 9 is set below
The insertion section 11 coordinated with groove 12 is equipped with, in use, according to on-the-spot teaching place equipment situation, may be selected to hang in the device
Or adsorbed by sucker 2 on blackboard, it then needs counterweight 9 being inserted into jack 8 by insertion section 11 according to experiment, if needed
It to raise the price in same position, directly the insertion section 11 of counterweight 9 can be inserted into groove 12 and is raised the price, when not in use, can incite somebody to action
Counterweight 9 is put into Storage Box 6.
Preferably, the insertion section 11 is irony, can prevent counterweight 9 from coming off out of groove 12 and jack 8.
A kind of section space-efficient lever principle apparatus for demonstrating described in the utility model, overall structure is simple, operates with
Convenient, stability is good, and reliability is high.Using it is described in the utility model it is a kind of section space-efficient lever principle apparatus for demonstrating, no
The presentation space of lever demonstration device is only saved, also reduces the labor intensity of teaching.
Claims (2)
1. a kind of section space-efficient lever principle apparatus for demonstrating, includes cross bar（5）And counterweight（9）, which is characterized in that cross bar
（5）Intermediate rear face is provided with turn hole（4）, turn hole（4）Interior rotation connection is provided with shaft（7）, shaft（7）One end extends to turn hole
（4）Outside, shaft（7）Towards turn hole（4）Outside end has been wholely set connecting rod（3）, connecting rod（3）Centre is provided with sucker
（2）, connecting rod（3）Upper top is provided with hook（1）, turn hole（4）The cross bar of both sides（5）Front is evenly distributed to be provided with jack
（8）, cross bar（5）Both ends are respectively arranged with a storage box（6）, the storage box（6）On be provided with lid（13）, counterweight（9）Front end
Face sets fluted（12）, groove（12）Inside it is provided with magnet（10）, counterweight（9）It is provided with below and groove（12）Cooperation is inserted
Enter portion（11）.
A kind of 2. section space-efficient lever principle apparatus for demonstrating according to claim 1, it is characterised in that insertion section（11）
For irony.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829727.XU CN207409166U (en) | 2017-07-11 | 2017-07-11 | A kind of section space-efficient lever principle apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829727.XU CN207409166U (en) | 2017-07-11 | 2017-07-11 | A kind of section space-efficient lever principle apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409166U true CN207409166U (en) | 2018-05-25 |
Family
ID=62322420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720829727.XU Expired - Fee Related CN207409166U (en) | 2017-07-11 | 2017-07-11 | A kind of section space-efficient lever principle apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207409166U (en) |
-
2017
- 2017-07-11 CN CN201720829727.XU patent/CN207409166U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20190711 |