CN208655103U - A kind of high school physics lever teaching aid - Google Patents
A kind of high school physics lever teaching aid Download PDFInfo
- Publication number
- CN208655103U CN208655103U CN201820080616.8U CN201820080616U CN208655103U CN 208655103 U CN208655103 U CN 208655103U CN 201820080616 U CN201820080616 U CN 201820080616U CN 208655103 U CN208655103 U CN 208655103U
- Authority
- CN
- China
- Prior art keywords
- cross bar
- teaching aid
- vertical bar
- high school
- school physics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A kind of high school physics lever teaching aid, including pedestal, vertical bar and cross bar, vertical bar are fixed in pedestal, are equipped with connecting shaft at the top of vertical bar, and cross bar is connected to vertical bar by connecting shaft, and cross bar can be rotated around connecting shaft, and the both ends of cross bar are relative to rotation axial symmetry；Pedestal is equipped with placing groove, and the side of placing groove is equipped with buckle, and slot cover has been connected by hinge on placing groove, and one end of slot cover is equipped with snap ring；Vertical bar is telescopic rod, and the both ends of cross bar are equipped with fine-tuning nut, and the side of cross bar is equipped with length scale line and sliding slot, sliding slot is located at below length scale line, and sliding block is socketed on cross bar, and sliding block is equipped with reading plate, reading plate is corresponding with the position of length scale line, and slider bottom is threaded with hook.The utility model uses semifixed slide block structure, cooperation hook and counterweight, can be with flexibly adjustment arm of force range, the balance of holding lever teaching aid.In addition, vertical bar is scalable and links up with, convenient for collecting placement detachable with counterweight, it is not easy to lose.
Description
Technical field
The utility model relates to physical teaching aid, in particular to a kind of high school physics lever teaching aid.
Background technique
In high school physics, lever principle is a highly important chapter.Lever teaching aid is one for demonstrating lever principle
Kind teaching aid, lever teaching aid when in use, need constantly to adjust the arm of force of counterweight to demonstrate balance.Current lever teaching aid
Fixed circular hole or sliding block are generallyd use to adjust balance, still, fixed circular hole limits arm of force adjusting range, and sliding block exists
Once disequilibrium is easy to slide after adjustment, deviates original position, leads to teaching aid disequilibrium.In addition, existing lever religion
Tool is inconvenient to carry out storage placement, and counterweight needs are individually tidied up, and are easily lost, it is therefore necessary to improve.
Utility model content
For above-mentioned deficiency in the prior art, the utility model provides a kind of high school physics lever teaching aid, structure
Simply, facilitate popularization.
In order to reach above-mentioned purpose of utility model, the technical solution adopted in the utility model are as follows:
A kind of high school physics lever teaching aid, including pedestal, vertical bar and cross bar, the vertical bar is fixed in the pedestal, described
Connecting shaft is equipped at the top of vertical bar, the cross bar is connected to the vertical bar by the connecting shaft, and the cross bar can be around the connection
Axis rotation, the both ends of the cross bar are relative to the rotation axial symmetry；The pedestal be equipped with placing groove, the one of the placing groove
Side is equipped with buckle, and slot cover has been connected by hinge on the placing groove, and one end of the slot cover is equipped with snap ring；The vertical bar is to stretch
Contracting bar, the both ends of the cross bar are equipped with fine-tuning nut, and the side of the cross bar is equipped with length scale line and sliding slot, the sliding slot position
Below the length scale line, sliding block is socketed on the cross bar, the sliding block is equipped with reading plate, the reading plate and institute
The position for stating length scale line is corresponding, and the slider bottom is threaded with hook.
Further, the buckle is used cooperatively with the snap ring.
Further, the length of each telescopic segment of the vertical bar is identical, and the length of the telescopic segment is less than the placement
The depth of slot.
Further, the length scale line has two groups, and the length scale line is about the connection axial symmetry.
Further, the length of the sliding slot is less than the half of the cross bar length.
Further, the sliding block is used cooperatively with the sliding slot, and the sliding block is non-dismountable.
Further, the reading plate uses magnifying glass material.
Further, the hook is detachable.
The utility model has the following beneficial effects: cooperation hook and counterweight can be flexible using semifixed slide block structure
Arm of force range is adjusted, and sliding block will not easily deviate original position, can keep the balance of lever teaching aid.In addition, perpendicular
Bar is scalable and hook is detachable with counterweight, it may be convenient to storage placement is carried out in the base, it is not easy to lose, and it is easy to carry.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1- pedestal, 11- placing groove, 111- buckle, 12- hinge, 13- slot cover, 131- snap ring, 2- vertical bar, 21- telescopic segment,
3- cross bar, 31- fine-tuning nut, 32- length scale line, 33- sliding slot, 34- sliding block, 341- reading plate, 35- hook, 4- connecting shaft.
Specific embodiment
In order to make the content of the utility model be easier to be clearly understood, below in conjunction in the utility model embodiment
Attached drawing, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Figure 1, a kind of high school physics lever teaching aid, including pedestal 1, vertical bar 2 and cross bar 3, vertical bar 2 are fixed in pedestal
1, connecting shaft 4 is equipped at the top of vertical bar 2, cross bar 3 is connected to vertical bar 2 by connecting shaft 4, and cross bar 3 can be rotated around connecting shaft 4, cross bar 3
Both ends relative to rotation axial symmetry.
Pedestal 1 is equipped with placing groove 11, and the side of placing groove 11 is equipped with buckle 111, is connected on placing groove 11 by hinge 12
It is connected to slot cover 13, one end of slot cover 13 is equipped with snap ring 131, and buckle 111 is used cooperatively with snap ring 131.
Vertical bar 2 is telescopic rod, and the length of each telescopic segment 21 of vertical bar 2 is identical, and the length of telescopic segment 21 is less than placement
The depth of slot 11.
The both ends of cross bar 3 are equipped with fine-tuning nut 31, and the side of cross bar 3 is equipped with length scale line 32 and sliding slot 33, sliding slot 33
Positioned at 32 lower section of length scale line, length scale line 32 has two groups, and length scale line 32 is symmetrical about connecting shaft 4, covers on cross bar 3
It is connected to sliding block 34, sliding block 34 is used cooperatively with sliding slot 32, and sliding block 34 is equipped with reading plate 341, and reading plate 341 uses magnifying glass material
Material, 34 bottom thread of sliding block are connected with hook 35, and hook 35 is detachable, and reading plate 341 is corresponding with the position of length scale line 32.
In use, pedestal 1 is put in the horizontal plane, vertical bar 2 is adjusted to suitable length, sliding block 34 is placed in identical quarter
The rotation of hook 35 is fixed on 34 lower section of sliding block, carries out balancing using fine-tuning nut 31 by degree；After balancing, counterweight 36 is utilized
Lever demonstration is carried out with the cooperation of hook 35 on cross bar 3, is read by reading plate 341；After demonstration, by counterweight 36 with
Hook 35, which is removed, to be placed in placing groove 11, and vertical bar 2 is contracted to most short status, covers slot cover 13, passes through buckle 111 and snap ring
131 are accommodated in vertical bar 2 and cross bar 3 inside pedestal 1.
The utility model use semifixed slide block structure, cooperation hook and counterweight, can with flexibly adjustment arm of force range,
And sliding block will not easily deviate original position, can keep the balance of lever teaching aid.In addition, vertical bar is scalable and links up with
It is detachable with counterweight, it may be convenient to storage placement is carried out in the base, it is not easy to lose, it is easy to carry.
The foregoing is merely the preferred embodiment of the utility model patent, it is not intended to limit the utility model specially
Benefit, all made any modifications, equivalent replacements, and improvements etc. within the spirit and principle of the utility model patent should all include
Within the protection scope of the utility model patent.
Claims (8)
1. a kind of high school physics lever teaching aid, which is characterized in that including pedestal, vertical bar and cross bar, the vertical bar is fixed in described
Pedestal, is equipped with connecting shaft at the top of the vertical bar, and the cross bar is connected to the vertical bar by the connecting shaft, and the cross bar can be around
The connecting shaft rotation, the both ends of the cross bar are relative to the connection axial symmetry；The pedestal is equipped with placing groove, described to put
The side for setting slot is equipped with buckle, and slot cover has been connected by hinge on the placing groove, and one end of the slot cover is equipped with snap ring；It is described
Vertical bar is telescopic rod, and the both ends of the cross bar are equipped with fine-tuning nut, and the side of the cross bar is equipped with length scale line and sliding slot, institute
It states sliding slot to be located at below the length scale line, sliding block is socketed on the cross bar, the sliding block is equipped with reading plate, the reading
Number plate is corresponding with the position of the length scale line, and the slider bottom is threaded with hook.
2. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: the buckle is matched with the snap ring
It closes and uses.
3. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: each telescopic segment of the vertical bar
Length it is identical, and the length of the telescopic segment be less than the placing groove depth.
4. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: the length scale line has two
Group, the length scale line is about the connection axial symmetry.
5. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: the length of the sliding slot is less than institute
State the half of cross bar length.
6. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: the sliding block is matched with the sliding slot
It closes and uses, the sliding block is non-dismountable.
7. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: the reading plate uses magnifying glass
Material.
8. a kind of high school physics lever teaching aid according to claim 1, it is characterised in that: the hook is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820080616.8U CN208655103U (en) | 2018-01-18 | 2018-01-18 | A kind of high school physics lever teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820080616.8U CN208655103U (en) | 2018-01-18 | 2018-01-18 | A kind of high school physics lever teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208655103U true CN208655103U (en) | 2019-03-26 |
Family
ID=65771670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820080616.8U Expired - Fee Related CN208655103U (en) | 2018-01-18 | 2018-01-18 | A kind of high school physics lever teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208655103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110634363A (en) * | 2019-10-31 | 2019-12-31 | 韩沐林 | Teaching aid for physical mechanics experiments in junior middle school |
-
2018
- 2018-01-18 CN CN201820080616.8U patent/CN208655103U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110634363A (en) * | 2019-10-31 | 2019-12-31 | 韩沐林 | Teaching aid for physical mechanics experiments in junior middle school |
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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: 20190326 Termination date: 20200118 |