CN209248864U - A kind of composable lever principle demonstration teaching aid of physics teaching - Google Patents
A kind of composable lever principle demonstration teaching aid of physics teaching Download PDFInfo
- Publication number
- CN209248864U CN209248864U CN201821066039.3U CN201821066039U CN209248864U CN 209248864 U CN209248864 U CN 209248864U CN 201821066039 U CN201821066039 U CN 201821066039U CN 209248864 U CN209248864 U CN 209248864U
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- Prior art keywords
- lever
- demonstration
- teaching aid
- composable
- slot
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Abstract
The utility model discloses a kind of composable lever principle demonstration teaching aids of physics teaching, lever teaching aid main body including containing box and split-type, lever teaching aid main body is accommodated in containing box, the lever teaching aid main body is by support base, demonstrate lever and scale pan composition, the containing box includes cabinet and case lid, it is connected by a hinge between the cabinet and case lid, there are two store mesh bag towards the setting of the side of body pivot for the case lid, and scale pan is placed in two storage mesh bags, the inner cavity of the cabinet is equipped with protection cotton pad, the protection cotton pad offers lever slot along one diagonal line, demonstration lever is placed in the lever slot.Support base, demonstration lever and scale pan can be split and be assembled in the utility model, facilitate and is stored, and assembly and disassembly point is convenient and quick, component after splitting simultaneously, which can be accommodated in containing box, to be corresponded in fixed region, effectively prevent the loss of components, and it is easy to carry, it is suitable for promoting the use of.
Description
Technical field
The utility model relates to teaching aid technical fields more particularly to a kind of physics teaching to be drilled with composable lever principle
Display teaching aid.
Background technique
The apparatus for enabling student to use when intuitively, visually understanding each appliances used in the content of courses and teachers' instruction
General name.Teaching aid is referred to as.The learning interest of student can be improved in teaching aid, enriches perceptual knowledge, and help forms specific concept, develops
The observation ability and thinking ability of student.Including conventional used in middle and primary schools' basic education and big, all kinds of specialized educations of special secondary school
With professional teaching aid.Generally there is material object, objective things is directly presented in face of student, so as to student's direct feeling；Object simulating,
Including sample, model and other duplicate, such as tellurion, manikin, engineering equipment model；Describe the figure of things image
Table, including the various visualization charts such as picture, photo, map and statistics, design；Reproduce the modernization of things image and its process
Equipment, such as projector, television set, recorder, video recorder, slide projector, projector.The conventional teaching aid used when also giving lessons,
Such as blackboard, blackboard eraser, blank, chalk.
In carrying out physics when lever principle teaching, in order to which student can more intuitively see, each factor becomes in principle
Change and generate, usually will use lever mold and carry out teaching demonstration, however existing lever teaching mould cannot split group mostly
Dress causes lever teaching aid to be inconvenient when storing mobile, usually can lever is broken, and accessory is lost etc., and being unable to satisfy makes
With demand, we design a kind of composable lever principle demonstration teaching aid of physics teaching thus, to solve the above problems.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of physics teaching proposed is used
Composable lever principle demonstration teaching aid.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of composable lever principle demonstration teaching aid of physics teaching, the lever teaching aid master including containing box and split-type
Body, lever teaching aid main body are accommodated in containing box, and the lever teaching aid main body is by support base, demonstration lever and scale pan group
At the containing box includes cabinet and case lid, is connected by a hinge between the cabinet and case lid, and the case lid turns towards cabinet
There are two storage mesh bags for dynamic side setting, and are placed with scale pan, the inner cavity of the cabinet in two storage mesh bags
It is equipped with protection cotton pad, the protection cotton pad offers lever slot along one diagonal line, demonstration is placed in the lever slot
Lever, the side of the lever slot are provided with bottom tub, are placed with support base in the bottom tub, the lever slot it is another
Side is provided with counterweight slot, counterweight is placed in the counterweight slot, the demonstration lever is rectangular rod, and side is square along its length
Fixation hole is offered to equidistant, the demonstration lever two sidewalls adjacent with fixation hole symmetrically offer cunning along its length
Slot, the demonstration lever side wall on the upside of the sliding slot are provided with scale, and one end of the demonstration lever is rotatably equipped with fixed hook,
And demonstration lever is movably installed with Removable hook by the sliding slot of two sides, hangs with counterweight on the fixed hook and Removable hook
Disk, the support base include the support baseboard of bar shaped, and the support baseboard has been fixedly arranged at the upper side A-frame, and triangle
Bracket is rotatably equipped with rectangle frame far from U-shaped frame is provided at the tip of support baseboard in the U-shaped frame, the rectangle frame
It is movably set with T shape fixed pin in the middle part of upper side wall, one end that the T shape fixed pin is located on the outside of rectangle frame is arranged with contraction bullet
Spring.
Preferably, one end of the contraction spring is fixedly connected on T shape fixed pin, and the other end is fixedly connected on rectangle frame
Outer wall on.
Preferably, the size of the demonstration lever matches with the size of rectangle frame, and demonstrates lever and be interspersed in rectangle frame
In, T shape fixed pin is inserted into fixation hole.
Preferably, the support baseboard offers U-lag, and U-lag far from the side of A-frame along its length
Inside it is rotatably equipped with the support bar that size is consistent with it.
Preferably, it is provided with link on the scale pan, and is articulated on fixed hook and Removable hook by link.
Preferably, lockset is provided on the case lid, position corresponding with lockset is provided with lockhole on cabinet.
Compared with prior art, the utility model has the beneficial effects that in the utility model, support base, demonstration lever
It can be split and be assembled with scale pan, facilitated and stored, and assembly and disassembly point is convenient and quick, while the component after fractionation
It can be accommodated in containing box and correspond in fixed region, effectively prevent the loss of components, and easy to carry, suitable popularization makes
With.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of composable lever principle demonstration teaching aid of physics teaching containing box knot
Structure schematic diagram；
Fig. 2 be the utility model proposes a kind of composable lever principle demonstration teaching aid of physics teaching lever teaching aid master
The structural schematic diagram of body；
Fig. 3 be the utility model proposes a kind of composable lever principle demonstration teaching aid of physics teaching support base
Structural schematic diagram；
Fig. 4 be the utility model proposes a kind of composable lever principle demonstration teaching aid of physics teaching support baseboard and
The structural schematic diagram of support bar；
Fig. 5 be the utility model proposes a kind of rectangle frame of physics teaching with composable lever principle demonstration teaching aid at
Structural schematic diagram；
Fig. 6 be the utility model proposes a kind of composable lever principle demonstration teaching aid of physics teaching Removable hook
Mounting structure schematic diagram.
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.
Referring to Fig.1-6, a kind of physics teaching is with composable lever principle demonstration teaching aid, the thick stick including containing box and split-type
Bar teaching aid main body, lever teaching aid main body are accommodated in containing box, and lever teaching aid main body is by support base 7, demonstration lever 8 and counterweight
Disk 14 forms, and containing box includes cabinet 1 and case lid 2, lockset is provided on case lid 2, position corresponding with lockset is set on cabinet 1
It is equipped with lockhole, is connected by a hinge between cabinet 1 and case lid 2, there are two storages towards the side setting that cabinet 1 rotates for case lid 2
Mesh bag 3, and scale pan 14 is placed in two storage mesh bags 3, the inner cavity of cabinet 1 is equipped with protection cotton pad 4, protects cotton pad 4
Lever slot 5 is offered along one diagonal line, demonstration lever 8 is placed in lever slot 5, the side of lever slot 5 is provided with pedestal
Slot 6 is placed with support base 7 in bottom tub 6, and the other side of lever slot 5 is provided with counterweight slot 15, is placed with weight in counterweight slot 15
Code, demonstration lever 8 are rectangular rod, and side is equidistant along its length offers fixation hole 9, demonstration lever 8 with fix
The adjacent two sidewalls in hole 9 symmetrically offer sliding slot 10 along its length, and 8 side wall of demonstration lever of 10 upside of sliding slot is provided with quarter
Degree 11, one end of demonstration lever 8 are rotatably equipped with fixed hook 12, and demonstrate sliding slot 10 activity installation of the lever 8 by two sides
There is Removable hook 13, link is provided on scale pan 14, and be articulated on fixed hook 12 and Removable hook 13 by link, Gu
Surely scale pan 14 is hung on hook 12 and Removable hook 13, support base 7 includes the support baseboard 71 of bar shaped, support baseboard 71
Be fixedly arranged at the upper side A-frame 73, support baseboard 71 offers U far from the side of A-frame 73 along its length
Shape slot, and the support bar 72 that size is consistent with it, and point of the A-frame 73 far from support baseboard 71 are rotatably equipped in U-lag
It is provided with U-shaped frame at end, rectangle frame 74 is rotatably equipped in U-shaped frame, demonstrates the size of lever 8 and the size kissing of rectangle frame 74
It closes, and demonstrates lever 8 and be interspersed in rectangle frame 74, T shape fixed pin 75 is inserted into fixation hole 9, in the middle part of the upper side wall of rectangle frame 74
It is movably set with T shape fixed pin 75, one end that T shape fixed pin 75 is located at 74 outside of rectangle frame is arranged with contraction spring 76, shrinks
One end of spring 76 is fixedly connected on T shape fixed pin 75, and the other end is fixedly connected on the outer wall of rectangle frame 74.
When the utility model is used, support base 7, demonstration lever 8 and scale pan 14 can be split and be assembled, side
Just it is stored, can be accommodated in containing box and be corresponded in fixed region after fractionation, scale pan 14 is placed on the storage mesh bag of case lid 2
In 3, support base 7 is placed in the bottom tub 6 of cabinet 1, and demonstration lever 8 is placed in lever slot 5, the weight of multiple and different weight
Code is placed in counterweight slot 15, is closed case lid 2 and is locked, effectively prevent the loss of components, and easy to carry, is being taught
When learning demonstration, case lid 2 is opened, takes out support base 7, rotational support item 72 supports it in vertical state, with support baseboard 71
The four-point supporting structure that item 72 and support baseboard 71 are formed makes support base 7 more firm, then takes out demonstration lever 8, to
Outer extraction T shape fixed pin 75, so that demonstration lever 8 passes through rectangle frame 74 to suitable position, unclamping T shape fixed pin 75 inserts it
Enter to demonstrate lever 8 herein in corresponding fixation hole 9, the demonstration fixation of lever 8 is assembled in support base 7, two weights are taken out
Code-disc 14 is hung on fixed hook 12 and Removable hook 13, is required according to demonstration, is taken out counterweight, is individually positioned in two
In scale pan 14, Removable hook 13 can carry the scale pan 14 of its mounting and counterweight is moved along the sliding slot 10 of demonstration lever 8,
It demonstrates different torque arm lengths and different weight counterweight is formed by influence, so that teaching is more intuitive, support base 7, demonstration thick stick
Bar 8 and scale pan 14 can be split and be assembled, and facilitated and stored, and assembly and disassembly point is convenient and quick.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of physics teaching is with composable lever principle demonstration teaching aid, the lever teaching aid main body including containing box and split-type,
Lever teaching aid main body is accommodated in containing box, which is characterized in that the lever teaching aid main body is by support base (7), demonstration lever
(8) and scale pan (14) composition, the containing box include cabinet (1) and case lid (2), are led between the cabinet (1) and case lid (2)
Hinge connection is crossed, there are two the side settings that the case lid (2) rotates towards cabinet (1) stores mesh bag (3), and two receipts
Mesh bag (3) of receiving is interior to be placed with scale pan (14), and the inner cavity of the cabinet (1) is equipped with protection cotton pad (4), the protection cotton pad
(4) it is offered lever slot (5) along one diagonal line, demonstration lever (8), the lever slot is placed in the lever slot (5)
(5) side is provided with bottom tub (6), is placed with support base (7) in the bottom tub (6), the lever slot (5) it is another
Side is provided with counterweight slot (15), is placed with counterweight in the counterweight slot (15), and the demonstration lever (8) is rectangular rod, and one
Side is equidistant along its length to be offered fixation hole (9), demonstration lever (8) and fixation hole (9) adjacent two sidewalls edge
Its length direction symmetrically offers sliding slot (10), and demonstration lever (8) side wall on the upside of the sliding slot (10) is provided with scale (11),
One end of demonstration lever (8) is rotatably equipped with fixed hook (12), and it is living by the sliding slot (10) of two sides to demonstrate lever (8)
It is dynamic to be equipped with Removable hook (13), scale pan (14), the branch are hung on the fixed hook (12) and Removable hook (13)
Support pedestal (7) includes the support baseboard (71) of bar shaped, and the support baseboard (71) has been fixedly arranged at the upper side A-frame (73),
And A-frame (73) is rotatably equipped with rectangle frame in the U-shaped frame far from U-shaped frame is provided at the tip of support baseboard (71)
(74), it is movably set with T shape fixed pin (75) in the middle part of the upper side wall of the rectangle frame (74), the T shape fixed pin (75) is located at
One end on the outside of rectangle frame (74) is arranged with contraction spring (76).
2. a kind of composable lever principle demonstration teaching aid of physics teaching according to claim 1, which is characterized in that described
One end of contraction spring (76) is fixedly connected on T shape fixed pin (75), and the other end is fixedly connected on the outer wall of rectangle frame (74)
On.
3. a kind of composable lever principle demonstration teaching aid of physics teaching according to claim 1, which is characterized in that described
The size of demonstration lever (8) matches with the size of rectangle frame (74), and demonstrates lever (8) and be interspersed in rectangle frame (74), T shape
Fixed pin (75) is inserted into fixation hole (9).
4. a kind of composable lever principle demonstration teaching aid of physics teaching according to claim 1, which is characterized in that described
Support baseboard (71) offers U-lag far from the side of A-frame (73) along its length, and is rotatably equipped in U-lag
The support bar (72) that size is consistent with it.
5. a kind of composable lever principle demonstration teaching aid of physics teaching according to claim 1, which is characterized in that described
It is provided with link on scale pan (14), and is articulated on fixed hook (12) and Removable hook (13) by link.
6. a kind of composable lever principle demonstration teaching aid of physics teaching according to claim 1, which is characterized in that described
Lockset is provided on case lid (2), position corresponding with lockset is provided with lockhole on cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066039.3U CN209248864U (en) | 2018-07-06 | 2018-07-06 | A kind of composable lever principle demonstration teaching aid of physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066039.3U CN209248864U (en) | 2018-07-06 | 2018-07-06 | A kind of composable lever principle demonstration teaching aid of physics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209248864U true CN209248864U (en) | 2019-08-13 |
Family
ID=67516809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821066039.3U Expired - Fee Related CN209248864U (en) | 2018-07-06 | 2018-07-06 | A kind of composable lever principle demonstration teaching aid of physics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209248864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326086A (en) * | 2020-11-25 | 2021-02-05 | 宁夏天地奔牛实业集团有限公司 | Starting torque testing device for precision speed reducer |
-
2018
- 2018-07-06 CN CN201821066039.3U patent/CN209248864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326086A (en) * | 2020-11-25 | 2021-02-05 | 宁夏天地奔牛实业集团有限公司 | Starting torque testing device for precision speed reducer |
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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: 20190813 Termination date: 20200706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |