CN209216384U - A kind of high school physics lever principle learning aids - Google Patents
A kind of high school physics lever principle learning aids Download PDFInfo
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- CN209216384U CN209216384U CN201821573961.1U CN201821573961U CN209216384U CN 209216384 U CN209216384 U CN 209216384U CN 201821573961 U CN201821573961 U CN 201821573961U CN 209216384 U CN209216384 U CN 209216384U
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- pedestal
- lever principle
- leverage ruler
- high school
- ruler
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Abstract
The utility model provides a kind of high school physics lever principle learning aids, comprising: teaching aid ontology, leverage ruler, support rod, screw rod, adjusting nut, pedestal；The bottom of the teaching aid ontology is provided with pedestal；Support rod is provided with above the pedestal, and support rod is connected with pedestal by snap fit；The upper end of the support rod is provided with leverage ruler, and leverage ruler is connected with support rod by articulated shaft；The both ends of the leverage ruler are provided with screw rod, and screw rod is connected with leverage ruler by fixed form；The utility model passes through the improvement to high school physics lever principle schooling apparatus, with reasonable in design, lever principle of the fulcrum between resistance and power can be demonstrated, the lever principle of resistance and power at fulcrum the same side can be demonstrated again, simultaneously convenient for storage counterweight and the advantages of dynamometer, thus the problem of effective solution the utility model proposes in background technique one and deficiency.
Description
Technical field
The utility model relates to teaching aid technical fields, more specifically, more particularly to a kind of high school physics lever original
Manage learning aids.
Background technique
Lever principle is also referred to as " lever equilibrium condition ", and lever five elements are power, resistance, power arm, resistance arm and branch
Point will make lever balance, and two torques (product of the power and the arm of force) size acted on lever must be equal.That is: power ×
Power arm=resistance × resistance arm, is expressed as F1L1=F2L2 with algebraic expression.In formula, F1 indicates that power, L1 indicate power
Arm, F2 indicate that resistance, L2 indicate resistance arm.It can be seen that from above formula, so that lever is reached balance, power arm is the several of resistance arm
Times, resistance is exactly several times of power.Classification to lever is usually two methods.The first is with fulcrum, resistance point and power
Point the location of come minute；Another kind is by laborsaving or laborious distinguish.Divide in any case, always be unable to do without it is laborsaving,
Arduously, not laborsaving also effortless these types of situation.It almost all can't do without lever in each machine, also have in human body perhaps
Many more levers are in action.Lever principle is one of principle important in physics, in physics teaching, demonstrates lever principle
It can allow the understanding lever rule that student is more vivid.
The schooling apparatus of demonstration lever principle used at present is lever of the fulcrum between resistance and power, is not had but
There is the embodying a kind of lever of resistance and power at fulcrum the same side of image, makes student that thick stick can not be more completely understood
Rod principle is not able to satisfy the use demand of teaching.
In view of this, being studied improvement for existing problem, a kind of high school physics lever principle learning aids is provided,
Come solve the problems, such as presently, there are it is not vivid a kind of lever of resistance and power at fulcrum the same side is embodied,
It is intended to achieve the purpose that solve the problems, such as and improve practical value by the technology.
Utility model content
The purpose of this utility model is to provide a kind of high school physics lever principle learning aids, to solve above-mentioned background skill
What is proposed in art is not vivid the problem of embodying a kind of lever of resistance and power at fulcrum the same side and deficiency.
To achieve the above object, the utility model provides a kind of high school physics lever principle learning aids, by following tool
Body technique means are reached:
A kind of high school physics lever principle learning aids, comprising: teaching aid ontology, support rod, screw rod, adjusts spiral shell at leverage ruler
Mother, pedestal, dynamometer, counterweight, articulated shaft, hook, pointer, graticule slot, box body, box cover, support slot, matter storage lattice；The teaching aid
The bottom of ontology is provided with pedestal；Support rod is provided with above the pedestal, and support rod passes through snap fit phase with pedestal
Connection；The upper end of the support rod is provided with leverage ruler, and leverage ruler is connected with support rod by articulated shaft；The leverage ruler
Both ends be provided with screw rod, and screw rod is connected with leverage ruler by fixed form；Adjusting nut is provided on the screw rod, and
Adjusting nut is threadedly connected with screw rod；The two sides up and down of the leverage ruler are provided with hook, and hook and lever
Ruler is an integral structure；Position is provided with pointer among the downside of the leverage ruler, and pointer is an integral structure with leverage ruler；
The top of the support rod is provided with graticule slot；The pedestal is made of box body and box cover, and box body passes through pin shaft phase with box cover
Connection；Support slot is provided on the pedestal；Matter storage lattice is provided with below the box cover.
As advanced optimizing for the technical program, described in a kind of high school physics lever principle learning aids of the utility model
Scale value is provided on leverage ruler.
As advanced optimizing for the technical program, described in a kind of high school physics lever principle learning aids of the utility model
The two sides up and down of leverage ruler are provided with hook.
As advanced optimizing for the technical program, described in a kind of high school physics lever principle learning aids of the utility model
The resemblance of pedestal in a rectangular parallelepiped shape, and on pedestal setting there are two matter storage lattice.
As advanced optimizing for the technical program, described in a kind of high school physics lever principle learning aids of the utility model
The plan shape feature of support slot is rectangular, and support slot is matched with support rod.
As advanced optimizing for the technical program, described in a kind of high school physics lever principle learning aids of the utility model
Leverage ruler is rotating device by articulated shaft.
As advanced optimizing for the technical program, described in a kind of high school physics lever principle learning aids of the utility model
The both ends of leverage ruler are symmetrically arranged with screw rod, and adjusting nut is equipped on screw rod.
Due to the application of the above technical scheme, the utility model has the advantage that compared with prior art
1, the utility model is provided with the setting of hook by the two sides up and down of leverage ruler, and the hook of upper end is for hooking
Dynamometer, the hook of lower end is for hanging counterweight, convenient for the lever principle of demonstration resistance and power at fulcrum the same side.
2, the utility model by the resemblance of pedestal in a rectangular parallelepiped shape, and setting there are two matter storage lattice is set on pedestal
It sets, convenient for storage counterweight and dynamometer.
3, the utility model is rectangular by the plan shape feature of support slot, and support slot is matched with support rod
Setting, installation is simple, easy to disassemble.
4, the utility model is by the improvement to high school physics lever principle schooling apparatus, have it is reasonable in design, both
Lever principle of the fulcrum between resistance and power can be demonstrated, and it is former to demonstrate the lever of resistance and power at fulcrum the same side
Reason, while convenient for storage counterweight and the advantages of dynamometer, so that effective solution the utility model is in background technique one
The problem of proposition and deficiency.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the side structure schematic view of the utility model；
Fig. 3 is the backsight structural representation of the utility model；
Fig. 4 is the schematic diagram of base structure of the utility model；
Fig. 5 is the pedestal opening state structural schematic diagram of the utility model.
In figure: teaching aid ontology 1, leverage ruler 2, support rod 3, screw rod 4, adjusting nut 5, pedestal 6, dynamometer 7, counterweight 8, hinge
Spindle 9, hook 10, pointer 11, graticule slot 12, box body 601, box cover 602, support slot 603, matter storage lattice 604.
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.
It should be noted that in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than a；The instructions such as term " on ", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion "
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification
Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance.
Meanwhile in the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Referring to Figure 1 to Fig. 5, the particular technique that the utility model provides a kind of high school physics lever principle learning aids is real
Apply scheme:
A kind of high school physics lever principle learning aids, comprising: teaching aid ontology 1, support rod 3, screw rod 4, is adjusted leverage ruler 2
Save nut 5, pedestal 6, dynamometer 7, counterweight 8, articulated shaft 9, hook 10, pointer 11, graticule slot 12, box body 601, box cover 602, branch
Support slot 603, matter storage lattice 604；The bottom of teaching aid ontology 1 is provided with pedestal 6；The top of pedestal 6 is provided with support rod 3, and supports
Bar 3 is connected with pedestal 6 by snap fit；The upper end of support rod 3 is provided with leverage ruler 2, and leverage ruler 2 and support rod 3 are logical
Articulated shaft 9 is crossed to be connected；The both ends of leverage ruler 2 are provided with screw rod 4, and screw rod 4 is connected with leverage ruler 2 by fixed form；
Adjusting nut 5 is provided on screw rod 4, and adjusting nut 5 is threadedly connected with screw rod 4；The two sides up and down of leverage ruler 2
It is provided with hook 10, and links up with 10 and is an integral structure with leverage ruler 2；Position is provided with pointer 11 among the downside of leverage ruler 2,
And pointer 11 is an integral structure with leverage ruler 2；The top of support rod 3 is provided with graticule slot 12；Pedestal 6 is by box body 601 and box
Lid 602 is constituted, and box body 601 is connected with box cover 602 by pin shaft；Support slot 603 is provided on pedestal 6；Under box cover 602
Side is provided with matter storage lattice 604.
Specifically, scale value is provided on leverage ruler 2 as shown in attached drawing 1 and attached drawing 2, convenient for observation torque arm length.
Specifically, the two sides up and down of leverage ruler 2 are provided with hook 10, the hook of upper end as shown in attached drawing 1 to attached drawing 3
10 for hooking dynamometer 7, and the hook 10 of lower end is for hanging counterweight 8, convenient for demonstration resistance and power at fulcrum the same side
Lever principle.
Specifically, as shown in Fig. 4, the resemblance of pedestal 6 in a rectangular parallelepiped shape, and on pedestal 6 setting there are two storing
Lattice 604, convenient for storage counterweight 8 and dynamometer 7.
Specifically, the plan shape feature of support slot 603 is rectangular, and support slot 603 is matched with support rod 3, peace
Dress is simple, easy to disassemble.
Specifically, leverage ruler 2 is rotating device by articulated shaft 9 as shown in attached drawing 1 to attached drawing 3, articulated shaft 9 constitutes thick stick
The fulcrum of bar.
Specifically, the both ends of leverage ruler 2 are symmetrically arranged with screw rod 4, and install on screw rod 4 as shown in attached drawing 1 to attached drawing 3
There is adjusting nut 5, convenient for adjusting the balance of leverage ruler 2.
Specific implementation step:
When using the high school physics lever principle learning aids, the adjusting nut 5 for first passing through 2 both ends of leverage ruler makes lever
Ruler balance, i.e., the pointer 11 on leverage ruler 2 coincides with graticule slot 12, demonstrates fulcrum first at the centre of resistance and power
Lever principle, articulated shaft 9 are the fulcrum of lever, and counterweight 8 is taken out from the matter storage lattice 604 of pedestal 6, is hung in fulcrum two sides
Hook 10 on, 8 quantity of counterweight and the arm of force of two sides are different, when pointer 11 and graticule slot 12 coincide on leverage ruler 2, this
When lever balance, allow observation of students power, resistance, power arm, the relationship between resistance arm, then demonstrate resistance and power in fulcrum
The lever principle of the same side hangs counterweight 8 in the right side lower end of leverage ruler 2, and counterweight 8 is used as resistance at this time, and dynamometer 7 is hung over
On the hook 10 of 8 right side upper end of counterweight, pulling dynamic dynamometer 7 is power, when lever balance, allows observation of students power, resistance,
Power arm, the relationship between resistance arm, then dynamometer 7 is hung on the hook of the upper end between counterweight 8 and articulated shaft 9 10, work as thick stick
When bar balances, observation of students power is allowed, resistance, power arm, the relationship between resistance arm, high school physics lever principle study uses
Tool, has reasonable in design, can demonstrate lever principle of the fulcrum between resistance and power and demonstrate resistance and power
Lever principle at fulcrum the same side, while being convenient for the advantages of storing counterweight and dynamometer, meet the use demand of teaching.
In summary: a kind of high school physics lever principle learning aids is provided with by the two sides up and down of leverage ruler
The setting of hook, the hook of upper end is for hooking dynamometer, and the hook of lower end is for hanging counterweight, convenient for demonstration resistance and power
Lever principle at fulcrum the same side；In a rectangular parallelepiped shape by the resemblance of pedestal, and on pedestal there are two storings for setting
The setting of lattice, convenient for storage counterweight and dynamometer；It is rectangular by the plan shape feature of support slot, and support slot and support
The setting that bar matches, installation is simple, easy to disassemble；By the improvement to high school physics lever principle schooling apparatus, there is knot
Structure design rationally, can demonstrate lever principle of the fulcrum between resistance and power and to demonstrate resistance and power same in fulcrum
Lever principle when side, while convenient for storage counterweight and the advantages of dynamometer, so that effective solution the utility model exists
The problem of being proposed in background technique one and deficiency.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of high school physics lever principle learning aids, comprising: teaching aid ontology (1), leverage ruler (2), support rod (3), screw rod
(4), adjusting nut (5), pedestal (6), dynamometer (7), counterweight (8), articulated shaft (9), hook (10), pointer (11), graticule slot
(12), box body (601), box cover (602), support slot (603), matter storage lattice (604)；It is characterized by: the teaching aid ontology (1)
Bottom is provided with pedestal (6)；It is provided with support rod (3) above the pedestal (6), and support rod (3) and pedestal (6) pass through card
Conjunction mode is connected；The upper end of the support rod (3) is provided with leverage ruler (2), and leverage ruler (2) and support rod (3) pass through hinge
Spindle (9) is connected；The both ends of the leverage ruler (2) are provided with screw rod (4), and screw rod (4) and leverage ruler (2) pass through fixation side
Formula is connected；It is provided with adjusting nut (5) on the screw rod (4), and adjusting nut (5) and screw rod (4) threadedly phase
Connection；The two sides up and down of the leverage ruler (2) are provided with hook (10), and are linked up with (10) and be an integral structure with leverage ruler (2)；
Position is provided with pointer (11) among the downside of the leverage ruler (2), and pointer (11) is an integral structure with leverage ruler (2)；
The top of the support rod (3) is provided with graticule slot (12)；The pedestal (6) is made of box body (601) and box cover (602), and
Box body (601) is connected with box cover (602) by pin shaft；Support slot (603) are provided on the pedestal (6)；The box cover
(602) matter storage lattice (604) are provided with below.
2. a kind of high school physics lever principle learning aids according to claim 1, it is characterised in that: the leverage ruler
(2) scale value is provided on.
3. a kind of high school physics lever principle learning aids according to claim 1, it is characterised in that: the leverage ruler
(2) two sides up and down are provided with hook (10).
4. a kind of high school physics lever principle learning aids according to claim 1, it is characterised in that: the pedestal (6)
Resemblance in a rectangular parallelepiped shape, and on pedestal (6) setting there are two matter storage lattice (604).
5. a kind of high school physics lever principle learning aids according to claim 1, it is characterised in that: the support slot
(603) plan shape feature is rectangular, and support slot (603) is matched with support rod (3).
6. a kind of high school physics lever principle learning aids according to claim 1, it is characterised in that: the leverage ruler
It (2) is rotating device by articulated shaft (9).
7. a kind of high school physics lever principle learning aids according to claim 1, it is characterised in that: the leverage ruler
(2) both ends are symmetrically arranged with screw rod (4), and adjusting nut (5) are equipped on screw rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821573961.1U CN209216384U (en) | 2018-09-27 | 2018-09-27 | A kind of high school physics lever principle learning aids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821573961.1U CN209216384U (en) | 2018-09-27 | 2018-09-27 | A kind of high school physics lever principle learning aids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216384U true CN209216384U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821573961.1U Expired - Fee Related CN209216384U (en) | 2018-09-27 | 2018-09-27 | A kind of high school physics lever principle learning aids |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599871A (en) * | 2019-10-25 | 2019-12-20 | 常州市戚墅堰高级中学 | Device for verifying two-force balance condition |
| CN110942701A (en) * | 2019-12-19 | 2020-03-31 | 贠德红 | Experimental apparatus is measured to primary school's science buoyancy |
-
2018
- 2018-09-27 CN CN201821573961.1U patent/CN209216384U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599871A (en) * | 2019-10-25 | 2019-12-20 | 常州市戚墅堰高级中学 | Device for verifying two-force balance condition |
| CN110942701A (en) * | 2019-12-19 | 2020-03-31 | 贠德红 | Experimental apparatus is measured to primary school's science buoyancy |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20200927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |