CN209070805U - A kind of adjustable physics teaching lever principle apparatus for demonstrating - Google Patents
A kind of adjustable physics teaching lever principle apparatus for demonstrating Download PDFInfo
- Publication number
- CN209070805U CN209070805U CN201820599761.7U CN201820599761U CN209070805U CN 209070805 U CN209070805 U CN 209070805U CN 201820599761 U CN201820599761 U CN 201820599761U CN 209070805 U CN209070805 U CN 209070805U
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- CN
- China
- Prior art keywords
- crossbeam
- telescopic rod
- upside
- strut
- containing tank
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Abstract
The utility model discloses a kind of adjustable physics teaching lever principle apparatus for demonstrating, including device noumenon；Described device ontology is by pedestal, strut and crossbeam composition, telescopic rod is provided on the upside of the strut, described telescopic rod one end is protruded into inside telescopic rod containing tank, the telescopic rod containing tank is located inside strut, the crossbeam both ends are provided with crossbeam telescopic rod, crossbeam middle position both ends are provided with support frame, the crossbeam is located inside crossbeam containing tank, support frame as described above is located inside card slot, the card slot and crossbeam containing tank are located on the upside of laying rack, the laying rack is located on the upside of telescopic rod, graduated scale is provided on the upside of the crossbeam, the graduated scale bottom end is correspondingly arranged on hanging hole, the hanging hole bottom end hangs with scale pan.The utility model can be adjusted strut and crossbeam by telescopic rod and crossbeam telescopic rod when in use, improve the class illustrative of device noumenon, while crossbeam can be removed, avoid during transportation crossbeam fracture.
Description
Technical field
The utility model relates to physics teaching demonstration equipment technical field, specifically a kind of adjustable physics teaching thick stick
Rod principle apparatus for demonstrating.
Background technique
Lever principle is one of principle important in physics, and in physics teaching, demonstration lever principle can allow student's energy
More vivid understanding lever rule.Currently, teacher when doing lever principle experiment, is simulated using light instrument,
Existing demonstration equipment is difficult to be adjusted when in use, and limitation when use is larger, influences experiment effect.
Utility model content
The purpose of this utility model is to provide a kind of adjustable physics teaching lever principle apparatus for demonstrating, to solve
Existing demonstration equipment in the prior art is difficult to be adjusted when in use, and limitation when use is larger, influences experiment effect
The problem of fruit.
To achieve the above object, the utility model provides the following technical solutions: a kind of adjustable physics teaching lever
Presentation device of theory, including device noumenon；Described device ontology is made of pedestal, strut and crossbeam, and the crossbeam is located at strut
Upside, the strut are located on the upside of pedestal, and the pedestal is located at device noumenon bottom end, and the pedestal bottom end is provided with non-slip mat,
It is provided with telescopic rod on the upside of the strut, described telescopic rod one end is protruded into inside telescopic rod containing tank, the telescopic rod containing tank
Inside strut, the telescopic rod and strut interface are provided with retaining collar, and the retaining collar and strut pass through screw thread
Rotation connection, the crossbeam both ends are provided with crossbeam telescopic rod, and the crossbeam telescopic rod passes through through-hole and protrudes into crossbeam telescopic rod Sheng
It puts inside slot, the through-hole and crossbeam telescopic rod containing tank are respectively positioned on inside crossbeam, and crossbeam middle position both ends are provided with
Support frame, the crossbeam are located inside crossbeam containing tank, and support frame as described above is located inside card slot, the card slot and crossbeam containing tank
On the upside of laying rack, the laying rack is located on the upside of telescopic rod, is provided with graduated scale, the graduated scale bottom on the upside of the crossbeam
End is correspondingly arranged on hanging hole, and the hanging hole bottom end hangs with scale pan.
Preferably, the crossbeam telescopic rod is located at crossbeam telescopic rod containing tank inside end and is provided with limit plate, and limit plate
Size is greater than clear size of opening.
Preferably, it is provided with bearing on the upside of support frame as described above, the bearing is located inside card slot.
Preferably, the strut bottom end is provided with threaded post, and threaded post bottom end and threaded hole rotation connect, screw thread hole location
On the upside of pedestal.
Preferably, the laying rack bottom end and shaft rotation connect, and shaft is located on the upside of telescopic rod.With prior art phase
Than the beneficial effects of the utility model are: the utility model when in use can be by telescopic rod and crossbeam telescopic rod to strut
It is adjusted with crossbeam, improves the class illustrative of device noumenon, while crossbeam can removed, avoided in transportational process
Middle cross beam fractures, and limit plate can be effectively prevented from crossbeam telescopic rod and completely disengage crossbeam telescopic rod containing tank so that crossbeam without
Method is carried out using bearing can reduce the frictional force between support frame and card slot, reduce experimental error, pass through threaded post and screw thread
Hole can remove pillar and pedestal, facilitate and transported and stored, and shaft can change direction corresponding to crossbeam,
Facilitate the demonstration for carrying out different angle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the branching rod structure schematic diagram of the utility model.
Fig. 3 is the beam structure schematic diagram of the utility model.
In figure: 1- device noumenon；2- pedestal；3- strut；4- telescopic rod；5- laying rack；6- crossbeam；7- graduated scale；8- is hung
Hole；9- scale pan；10- non-slip mat；11- threaded hole；12- threaded post；13- telescopic rod containing tank；14- retaining collar；15- turns
Axis；16- card slot；17- crossbeam containing tank；18- crossbeam telescopic rod containing tank；19- limit plate；20- through-hole, 21- crossbeam are flexible
Bar；22- bearing；23- support frame.
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 making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, in the utility model embodiment, a kind of adjustable physics teaching is demonstrated with lever principle to be filled
It sets, including device noumenon 1；Device noumenon 1 is made of pedestal 2, strut 3 and crossbeam 6, and crossbeam 6 is located on the upside of strut 3, and strut 3
In 2 upside of pedestal, pedestal 2 is located at 1 bottom end of device noumenon, and 2 bottom end of pedestal is provided with non-slip mat 10, is provided with and stretches on the upside of strut 3
Contracting bar 4,4 one end of telescopic rod are protruded into inside telescopic rod containing tank 13, and telescopic rod containing tank 13 is located inside strut 3, telescopic rod 4 with
3 interface of strut is provided with retaining collar 14, and retaining collar 14 is connect with strut 3 by screw thread rotation, the setting of 6 both ends of crossbeam
There is crossbeam telescopic rod 21, crossbeam telescopic rod 21 passes through through-hole 20 and protrudes into inside crossbeam telescopic rod containing tank 18, through-hole 20 and crossbeam
Telescopic rod containing tank 18 is respectively positioned on inside crossbeam 6, and 6 middle position both ends of crossbeam are provided with support frame 23, and crossbeam 6 is located at crossbeam Sheng
It puts inside slot 17, support frame 23 is located inside card slot 16, and card slot 16 and crossbeam containing tank 17 are located at 5 upside of laying rack, laying rack 5
Positioned at 4 upside of telescopic rod, it is provided with graduated scale 7 on the upside of crossbeam 6,7 bottom end of graduated scale is correspondingly arranged on hanging hole 8,8 bottom end of hanging hole
Scale pan 9 is hung with, crossbeam telescopic rod 21 is located at 18 inside end of crossbeam telescopic rod containing tank and is provided with limit plate 19, and limit plate 19
Size is greater than 20 size of through-hole, and limit plate 19 can be effectively prevented from crossbeam telescopic rod 21 and completely disengage crossbeam telescopic rod containing tank
18, so that crossbeam 6 can not be carried out using being provided with bearing 22 on the upside of support frame 23, bearing 22 is located inside card slot 16, bearing 22
The frictional force between support frame 23 and card slot 16 can be reduced, experimental error is reduced, 3 bottom end of strut is provided with threaded post 12, and
12 bottom end of threaded post and the rotation of threaded hole 11 connect, and threaded hole 11 is located on the upside of pedestal 2, by threaded post 12 and threaded hole 11,
Pillar 3 and pedestal 2 can be removed, facilitate and transported and stored, 5 bottom end of laying rack and the rotation of shaft 15 connect, and
Shaft 15 is located at 4 upside of telescopic rod, and shaft 15 can change direction corresponding to crossbeam 6, facilitate the demonstration for carrying out different angle.
The working principle of the utility model is: crossbeam 6 is placed on 5 upside of laying rack when in use, while support frame 23 is right
That answers is placed on inside card slot 16, is adjusted by telescopic rod 4 and crossbeam telescopic rod 21 to strut 3 and crossbeam 6, improves dress
Set the class illustrative of ontology 1, when use operates scale pan 9 according to the actual situation, internally increases counterweight, limit plate 19 can have
Effect crossbeam telescopic rod 21 is avoided to completely disengage crossbeam telescopic rod containing tank 18, so that crossbeam 6 can not carry out using bearing 22
The frictional force between support frame 23 and card slot 16 can be reduced, reducing experimental error can by threaded post 12 and threaded hole 11
Pillar 3 and pedestal 2 are removed, is facilitated and is transported and stored, shaft 15 can change direction corresponding to crossbeam 6, side
Just the demonstration of different angle is carried out.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of adjustable physics teaching lever principle apparatus for demonstrating, including device noumenon (1)；It is characterized by: described
Device noumenon (1) is made of pedestal (2), strut (3) and crossbeam (6), and the crossbeam (6) is located on the upside of strut (3), the strut
(3) it is located on the upside of pedestal (2), the pedestal (2) is located at device noumenon (1) bottom end, and pedestal (2) bottom end is provided with non-slip mat
(10), it is provided with telescopic rod (4) on the upside of the strut (3), described telescopic rod (4) one end is protruded into telescopic rod containing tank (13)
Portion, the telescopic rod containing tank (13) are located at strut (3) inside, and the telescopic rod (4) and strut (3) interface are provided with fixation
Lantern ring (14), the retaining collar (14) are connect with strut (3) by screw thread rotation, and crossbeam (6) both ends are provided with crossbeam
Telescopic rod (21), the crossbeam telescopic rod (21) passes through through-hole (20) and protrudes into crossbeam telescopic rod containing tank (18) inside, described logical
Hole (20) and crossbeam telescopic rod containing tank (18) are respectively positioned on crossbeam (6) inside, and crossbeam (6) the middle position both ends are provided with branch
Support (23), the crossbeam (6) are located at crossbeam containing tank (17) inside, and support frame as described above (23) is located at card slot (16) inside, institute
It states card slot (16) and crossbeam containing tank (17) to be located on the upside of laying rack (5), the laying rack (5) is located on the upside of telescopic rod (4), institute
It states and is provided with graduated scale (7) on the upside of crossbeam (6), graduated scale (7) bottom end is correspondingly arranged on hanging hole (8), hanging hole (8) bottom
End hangs with scale pan (9).
2. a kind of adjustable physics teaching lever principle apparatus for demonstrating according to claim 1, it is characterised in that: institute
It states crossbeam telescopic rod (21) and is located at crossbeam telescopic rod containing tank (18) inside end and be provided with limit plate (19), and limit plate (19) ruler
It is very little to be greater than through-hole (20) size.
3. a kind of adjustable physics teaching lever principle apparatus for demonstrating according to claim 1, it is characterised in that: institute
It states and is provided with bearing (22) on the upside of support frame (23), it is internal that the bearing (22) is located at card slot (16).
4. a kind of adjustable physics teaching lever principle apparatus for demonstrating according to claim 1, it is characterised in that: institute
It states strut (3) bottom end to be provided with threaded post (12), and threaded post (12) bottom end and threaded hole (11) rotation connect, threaded hole (11)
On the upside of pedestal (2).
5. a kind of adjustable physics teaching lever principle apparatus for demonstrating according to claim 1, it is characterised in that: institute
It states laying rack (5) bottom end and shaft (15) rotation connects, and shaft (15) is located on the upside of telescopic rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820599761.7U CN209070805U (en) | 2018-04-25 | 2018-04-25 | A kind of adjustable physics teaching lever principle apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820599761.7U CN209070805U (en) | 2018-04-25 | 2018-04-25 | A kind of adjustable physics teaching lever principle apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209070805U true CN209070805U (en) | 2019-07-05 |
Family
ID=67088407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820599761.7U Expired - Fee Related CN209070805U (en) | 2018-04-25 | 2018-04-25 | A kind of adjustable physics teaching lever principle apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209070805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577666A (en) * | 2020-12-30 | 2021-03-30 | 陕西金飞马测控技术有限公司 | Verification and calibration device and method for torque wrench verification instrument |
-
2018
- 2018-04-25 CN CN201820599761.7U patent/CN209070805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577666A (en) * | 2020-12-30 | 2021-03-30 | 陕西金飞马测控技术有限公司 | Verification and calibration device and method for torque wrench verification instrument |
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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: 20190705 Termination date: 20200425 |