CN206726588U - A kind of adjustable high-precision lever used for physics - Google Patents
A kind of adjustable high-precision lever used for physics Download PDFInfo
- Publication number
- CN206726588U CN206726588U CN201720354092.2U CN201720354092U CN206726588U CN 206726588 U CN206726588 U CN 206726588U CN 201720354092 U CN201720354092 U CN 201720354092U CN 206726588 U CN206726588 U CN 206726588U
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- China
- Prior art keywords
- sliding block
- physics
- pointer
- lever
- mark post
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Abstract
The utility model discloses a kind of adjustable high-precision lever used for physics, including lever, the lever both ends are installed with balance screw, screw rod is provided with the inside of balance screw, mark post is installed with the inside of the screw rod, the surface of mark post is provided with scale, set on the inside of the mark post fluted, both side surface is installed with guide rail above and below groove, sliding block is provided between two guide rails, both side surface is installed with fixture block to the sliding block up and down, sliding block pointer is provided with the middle part of sliding block, sliding block hook is installed with the downside of the sliding block pointer, counterweight is provided with the downside of sliding block hook, rotating shaft is installed with the middle part of the mark post, pointer is provided with the upside of rotating shaft, index disk is installed with rear side of pointer；It the adjustable high-precision lever used for physics of the one kind, in calibration without manually examining, only need to see whether indicator lamp is bright, can also send alarm in overload, and mark post is rotatable parallel with montant, has saved space.
Description
Technical field
It the utility model is related to educational aid field, and in particular to a kind of adjustable high-precision lever used for physics.
Background technology
Physics is to study the most basic structure of the material world, most common interaction, the characteristics of motion most typically and institute
The laboratory facilities and the natural science of method of thinking used, many concepts in physical textbook, rule, law pass through
Test to introduce, export and verify, particularly in mechanics teaching, in research lever equilibrium condition；
Teacher is typically understood when explaining lever principle to student by picture, is demonstrated without actual teaching aid
Simulated to student viewing, or using light instrument, such teacher can not accurately load the quality at lever both ends, can not
Position of the fulcrum is accurately positioned, by virtue of experience lever principle simulation can only be carried out with feel, there are some students to understand not thorough, institute
Knowledge is not sturdy, has a strong impact on the understanding and grasp of later physical knowledge.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of adjustable high-precision lever used for physics.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:A kind of adjustable high-precision physics thick stick
Bar, including lever, the lever both ends are installed with balance screw, and screw rod, the screw rod are provided with the inside of balance screw
Inner side is installed with mark post, and scale is provided with the surface of mark post, and setting is fluted on the inside of the mark post, two above and below groove
Side surface is installed with guide rail, sliding block is provided between two guide rails, both side surface is installed with card to the sliding block up and down
Block, sliding block pointer is provided with the middle part of sliding block, sliding block hook is installed with the downside of the sliding block pointer, on the downside of sliding block hook
Counterweight is provided with, lower surface is provided with hook on the left of mark post, is installed with rotating shaft in the middle part of the mark post, is set on the upside of rotating shaft
Pointer is equipped with, index disk is installed with rear side of pointer, lubber-line is provided among the index disk, in index disk both sides
Overload line is provided with, montant is installed with the downside of the index disk, base, the base two is installed with the downside of montant
Side upper surface is provided with Weight box, and portion is provided with grab in the base, and indicator lamp is provided with the right side of grab, and the indicator lamp is right
Side is installed with three hole sockets.Optical inductor, and optical inductor and indicator lamp are provided with rear side of the lubber-line and overload line
It is to be connected with each other by electric wire.
As a kind of preferable technical scheme of the utility model, the indicator lamp display green and red two kinds of colors.
As a kind of preferable technical scheme of the utility model, the base is provided with spud pile with montant junction.
As a kind of preferable technical scheme of the utility model, the lever is stainless steel, and length is 80cm.
As a kind of preferable technical scheme of the utility model, the sliding block has two and is distributed in rotating shaft both sides.
As a kind of preferable technical scheme of the utility model, the counterweight has ten, and the quality of each counterweight is
20g。
Compared with prior art, the beneficial effects of the utility model are：The adjustable high-precision lever used for physics of the one kind, bottom
Seat is provided with spud pile with montant junction, and whole lever can be kept to consolidate, be not in rock, and service life is grown,
During balance, pointer touches the optical inductor on rear side of lubber-line, and indicator lamp show green, and during overload, pointer touches overload line rear side
Optical inductor, indicator lamp display is red, facilitates operation of teacher lever, after having operated, utilizes the grab and extension being provided with
Hook, mark post is rotated to on montant same straight line, saves the space shared by lever.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is slide block schematic diagram of the present utility model；
Fig. 3 is rotating shaft schematic diagram of the present utility model.
In figure：1- balances screw；2- screw rods；3- is linked up with；4- mark posts；5- sliding blocks；6- sliding blocks are linked up with；7- counterweights；8- overloads
Line；9- lubber-lines；10- index disks；11- pointers；12- rotating shafts；13- fixture blocks；14- sliding block pointers；15- grooves；16- scales；17-
Guide rail；18- montants；19- bases；20- Weight boxes；The hole sockets of 21- tri-；22- indicator lamps；23- grabs；24- levers.
Embodiment
The embodiment practical to this is described further below in conjunction with the accompanying drawings.It is herein it should be noted that right
It is used to help understand that this is practical in the explanation of these embodiments, but does not form the restriction practical to this.In addition, below
As long as involved technical characteristic does not form conflict can each other in each embodiment of described the utility model
It is mutually combined.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 are referred to, the utility model provides a kind of technical scheme：A kind of adjustable high-precision physics
Lever, including lever 24, lever 24 are stainless steels, and length is 80cm, are for the ease of operation, and increase the service life,
The both ends of lever 24 are installed with balance screw 1, the inner side of balance screw 1 are provided with screw rod 2, the inner side of screw rod 2 is installed with
Mark post 4, is provided with scale 16 on the surface of mark post 4, and the inner side of mark post 4 sets fluted 15, groove about 15 both side surface consolidate
Dingan County is equipped with guide rail 17, and sliding block 5 is provided between two guide rails 17, and sliding block 5 has two and is distributed in the both sides of rotating shaft 12, sliding block 5
Upper and lower both side surface is installed with fixture block 13, and sliding block pointer 14, the fixed peace in the downside of sliding block pointer 14 are provided with the middle part of sliding block 5
Equipped with sliding block hook 6, counterweight 7 is provided with the downside of sliding block hook 6, counterweight 7 has ten, and the quality of each counterweight 7 is 20g,
Hook 3 is provided with the left side lower surface of mark post 4, the middle part of mark post 4 is installed with rotating shaft 12, and the upside of rotating shaft 12 is provided with pointer
11, index disk 10 is installed with the rear side of pointer 11, lubber-line 9 is provided among index disk 10, in the both sides of index disk 10
Overload line 8 is provided with, lubber-line 9 and the rear side of overload line 8 are provided with optical inductor, and optical inductor and indicator lamp 22 are to pass through electricity
What line was connected with each other, it is hollow out to overload line 8 and lubber-line 9, and optical inductor can emit beam, when pointer 11 reaches overload line
8 or during lubber-line 9, light is occluded, and optical inductor will be activated, and in balance, pointer 11 touches the light sensation of the rear side of lubber-line 9
Answer device, indicator lamp 22 shows green, and during overload, pointer 11 touches the optical inductor of the rear side of overload line 8, and indicator lamp 22 shows red
Color, the operating lever 24 of teacher is facilitated, the downside of index disk 10 is installed with montant 18, is installed with the downside of montant 18
Base 19, base 19 are provided with spud pile with the junction of montant 18, and whole lever 24 can be kept firm, be not in rock,
And service life is grown, the both sides upper surface of base 19 is provided with Weight box 20, the middle part of base 19 is provided with grab 23, in grab 23
Right side is installed with indicator lamp 22, and indicator lamp 22 can show green and red two kinds of colors, be in order to facilitate teacher
Operating lever 24, the right side of indicator lamp 22 are installed with three hole sockets 21.
Superiority of the present utility model is embodied in：Base 19 is provided with spud pile with the junction of montant 18, can keep whole
Individual lever 24 is firm, is not in rock, and service life is grown, and lubber-line 9 and the rear side of overload line 8 are provided with optical inductor, and
Optical inductor is to be connected with each other with indicator lamp 22, and in balance, pointer 11 touches the optical inductor of the rear side of lubber-line 9, instruction
Lamp 22 shows green, and during overload, pointer 11 touches the optical inductor of the rear side of overload line 8, and indicator lamp 22 shows red, facilitates religion
The operating lever 24 of teacher, after having operated, using the grab 23 and hook 3 being provided with, mark post 4 is rotated to same with montant 18
On bar straight line, the space shared by lever 24 is saved.
Operation principle of the present utility model is：In use, first, be powered by three hole sockets 21, adjustment screw 1,
Until indicator lamp 22 shows green, in the counterweight 7 of the loading varying numbers of sliding block hook 6 of the downside of two side slide 5, then both sides are adjusted
Sliding block 5 is apart from the distance of rotating shaft 12, and in balance, pointer 11 touches the optical inductor of the rear side of lubber-line 9, and indicator lamp 22 shows green
, during overload, pointer 11 touches the optical inductor of the rear side of overload line 8, and indicator lamp 22 shows red, after having operated, mark post 4
Rotation is fixed together using grab 23 and hook 3 extremely and on the same straight line of montant 18, places safe place.
Embodiment of the present utility model is explained in detail above in association with accompanying drawing, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall within the protection domain of utility model.
Claims (6)
1. a kind of adjustable high-precision lever used for physics, including lever (24), it is characterised in that：Lever (24) both ends are fixed
Balance screw (1) is installed, screw rod (2) is provided with the inside of balance screw (1), mark is installed with the inside of the screw rod (2)
Bar (4), scale (16) is provided with the surface of mark post (4), fluted (15) are set on the inside of the mark post (4), in groove (15)
Upper and lower both side surface is installed with guide rail (17), sliding block (5) is provided between two guide rails (17), the sliding block (5) is up and down
Both side surface is installed with fixture block (13), is provided with sliding block pointer (14) in the middle part of the sliding block (5), under the sliding block pointer (14)
Side is installed with sliding block hook (6), and counterweight (7) is provided with the downside of sliding block hook (6), and lower surface is set on the left of mark post (4)
Hook (3) is equipped with, rotating shaft (12) is installed with the middle part of the mark post (4), pointer (11) is provided with the upside of rotating shaft (12),
Index disk (10) is installed with rear side of pointer (11), lubber-line (9) is provided among the index disk (10), in index disk
(10) both sides are provided with overload line (8), and montant (18) is installed with the downside of the index disk (10), solid on the downside of montant (18)
Dingan County is equipped with base (19), and base (19) the both sides upper surface is provided with Weight box (20), is provided with the middle part of base (19)
Grab (23), indicator lamp (22) is provided with the right side of grab (23), three hole sockets are installed with the right side of the indicator lamp (22)
(21)；Optical inductor is provided with rear side of the lubber-line (9) and overload line (8), and optical inductor and indicator lamp (22) are to pass through
What electric wire was connected with each other.
2. the adjustable high-precision lever used for physics of one kind according to claim 1, it is characterised in that：The indicator lamp (22)
Display green and red two kinds of colors.
3. the adjustable high-precision lever used for physics of one kind according to claim 1, it is characterised in that：The base (19) with
Montant (18) junction is provided with spud pile.
4. the adjustable high-precision lever used for physics of one kind according to claim 1, it is characterised in that：The lever (24) is
Stainless steel, and length is 80cm.
5. the adjustable high-precision lever used for physics of one kind according to claim 1, it is characterised in that：The sliding block (5) has
Two and it is distributed in rotating shaft (12) both sides.
6. the adjustable high-precision lever used for physics of one kind according to claim 1, it is characterised in that：The counterweight (7) has
Ten, and the quality of each counterweight (7) is 20g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720354092.2U CN206726588U (en) | 2017-04-06 | 2017-04-06 | A kind of adjustable high-precision lever used for physics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720354092.2U CN206726588U (en) | 2017-04-06 | 2017-04-06 | A kind of adjustable high-precision lever used for physics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206726588U true CN206726588U (en) | 2017-12-08 |
Family
ID=60503309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720354092.2U Expired - Fee Related CN206726588U (en) | 2017-04-06 | 2017-04-06 | A kind of adjustable high-precision lever used for physics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206726588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978204A (en) * | 2017-12-29 | 2018-05-01 | 南京惊兰谷根自动化科技有限公司 | One kind is used for physics teaching experimental device |
| CN111198146A (en) * | 2020-03-16 | 2020-05-26 | 方腾飞 | RCA paper tape rubbing machine |
-
2017
- 2017-04-06 CN CN201720354092.2U patent/CN206726588U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978204A (en) * | 2017-12-29 | 2018-05-01 | 南京惊兰谷根自动化科技有限公司 | One kind is used for physics teaching experimental device |
| CN111198146A (en) * | 2020-03-16 | 2020-05-26 | 方腾飞 | RCA paper tape rubbing machine |
| CN111198146B (en) * | 2020-03-16 | 2020-12-15 | 方腾飞 | RCA paper tape rubbing machine |
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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 |
Granted publication date: 20171208 Termination date: 20180406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |