CN205508218U - Portable lever demonstration teaching aid - Google Patents
Portable lever demonstration teaching aid Download PDFInfo
- Publication number
- CN205508218U CN205508218U CN201521116472.XU CN201521116472U CN205508218U CN 205508218 U CN205508218 U CN 205508218U CN 201521116472 U CN201521116472 U CN 201521116472U CN 205508218 U CN205508218 U CN 205508218U
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- CN
- China
- Prior art keywords
- groove
- support
- draw
- fixture block
- cross bar
- 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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- 230000037250 Clearance Effects 0.000 claims abstract description 4
- 230000035512 clearance Effects 0.000 claims abstract description 4
- 230000001808 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
The utility model discloses a portable lever demonstration teaching aid, including box, weight groove, draw -in groove, support, rotatory knot, case lid, horizontal pole, couple, fixture block A, magnetic stripe A, draw -in groove A, spring A, draw -in groove B, fixture block B, magnetic stripe B and spring, be equipped with the weight groove in the box, the box outside is equipped with the draw -in groove, is equipped with magnetic stripe A on the board of box left side, has the support through hinged joint on the box bottom plate, the support left side is equipped with magnetic stripe B, and a shelf energy is folding, and support top is equipped with draw -in groove B, and the lower part branch is equipped with fixture block B, and the concatenation of support upper end has the horizontal pole, and the horizontal pole can be folded, is equipped with fixture block A on the horizontal pole right part divides, is equipped with draw -in groove A on the left part divides, and the horizontal pole is inside to be equipped with the slide rail, is equipped with the couple in the slide rail, and the horizontal pole is equipped with the scale on the surface, support and horizontal pole junction are clearance fit, and after the demonstration, the horizontal pole can be in order to pull down from the support, fixture block A and fixture block B respectively through spring A and spring coupling on horizontal pole and support, be equipped with rotatory the knot on the case lid.
Description
Technical field
This utility model relates to a kind of demonstration teaching aid, a kind of portable lever demonstration teaching appliance.
Background technology
The physics teaching material in junior middle school has a lot of concept, is the most all introduced by experiment；Especially in mechanics teaching, in demonstration lever balance experiment, often demonstration teaching aid is more scattered, it has not been convenient to teacher carries, and deposits and also takes up space, and this brings the biggest inconvenience to the teaching of teacher.
Utility model content
The purpose of this utility model is to provide a kind of portable lever demonstration teaching appliance, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of portable lever demonstration teaching appliance, including casing, counterweight groove, draw-in groove, support, turn buckle, case lid, cross bar, hook, fixture block A, magnetic stripe A, draw-in groove A, spring A, draw-in groove B, fixture block B, magnetic stripe B and spring；Being provided with counterweight groove in described casing, be provided with draw-in groove outside casing, casing left plate is provided with magnetic stripe A, and box bottom has been connected through the hinge support；Magnetic stripe B it is provided with on the left of described support, support can fold, and burst is hinged, and frame upper is arranged with draw-in groove B, lower part is provided with fixture block B, the splicing of described pedestal upper end has cross bar, and cross bar can fold, and burst is connected through the hinge, cross bar right half is provided with fixture block A, left half is provided with draw-in groove A, is provided with slide rail inside cross bar, is provided with hook in slide rail；Described case lid is provided with turn buckle.
As further program of the utility model: the surface of described cross bar is provided with scale.
As further program of the utility model: described fixture block A and fixture block B is connected on cross bar and support by spring A and spring respectively.
As further program of the utility model: described support and cross bar junction are matched in clearance.
Compared with prior art, the beneficial effects of the utility model are:
This utility model is reasonable in design, simple in construction, facilitates teacher to carry, deposits and the most do not take up space, and eliminates the biggest trouble for teacher, is well suited for teacher and imparts knowledge to students use.
Accompanying drawing explanation
Fig. 1 is the structural representation of portable lever demonstration teaching appliance.
Fig. 2 is the attachment structure schematic diagram of portable lever demonstration teaching appliance medium-height trestle and cross bar.
Fig. 3 is the structural representation of cross bar in portable lever demonstration teaching appliance.
Fig. 4 is the structural representation of portable lever demonstration teaching appliance medium-height trestle.
Fig. 5 is the hinged structural representation of portable lever demonstration teaching appliance medium-height trestle and cross bar burst.
In figure: 1-casing, 2-counterweight groove, 3-draw-in groove, 4-support, 5-turn buckle, 6-case lid, 7-cross bar, 8-links up with, 9-magnetic stripe A, 10-fixture block A, 11-draw-in groove A, 12-spring A, 13-draw-in groove B, 14-fixture block B, 15-magnetic stripe B, 16-spring.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Refer to Fig. 1-5, a kind of portable lever demonstration teaching appliance, including casing 1, counterweight groove 2, draw-in groove 3, support 4, turn buckle 5, case lid 6, cross bar 7, hook 8, magnetic stripe A9, fixture block A10, draw-in groove A11, spring A12, draw-in groove B13, fixture block B14, magnetic stripe B15 and spring 16；Being provided with counterweight groove 2 in described casing 1, be used for placing counterweight, be provided with draw-in groove 3 outside casing 1, casing 1 left plate is provided with magnetic stripe A9, and casing 1 base plate has been connected through the hinge support 4；It is provided with magnetic stripe B15 on the left of described support 4, support 4 can fold, and support 4 upper part is provided with draw-in groove B13, and lower part is provided with fixture block B14, the splicing of described support 4 upper end has cross bar 7, cross bar 7 can fold, and cross bar 7 right half is provided with fixture block A10, and left half is provided with draw-in groove A11, cross bar 7 is internal is provided with slide rail, being provided with hook 8 in slide rail, cross bar 7 surface is provided with scale, facilitates teacher to adjust the distance of hook；Described cross bar 7 and support 4 burst are all connected through the hinge；Support 4 and cross bar 7 junction are matched in clearance, and cross bar 7 can be demonstrated after terminating with freely rotatable, and cross bar 7 can be to remove on support 4；Fixture block A10 and fixture block B14 is connected on cross bar 7 and support 4 by spring A12 and spring 16 respectively；The draw-in groove 3 that described case lid 6 is provided with on turn buckle 5, turn buckle 5 and casing 1 coordinates, and is used for locking case lid 6.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art is possessed, moreover it is possible to make a variety of changes on the premise of without departing from this patent objective.
Claims (4)
1. a portable lever demonstration teaching appliance, including casing, counterweight groove, draw-in groove, support, turn buckle, case lid, cross bar, hook, fixture block A, magnetic stripe A, draw-in groove A, spring A, draw-in groove B, fixture block B, magnetic stripe B and spring；It is characterized in that, be provided with counterweight groove in described casing, being provided with draw-in groove outside casing, casing left plate is provided with magnetic stripe A, and box bottom has been connected through the hinge support；Magnetic stripe B it is provided with on the left of described support, support can fold, and burst is hinged, and frame upper is arranged with draw-in groove B, lower part is provided with fixture block B, the splicing of described pedestal upper end has cross bar, and cross bar can fold, and burst is connected through the hinge, cross bar right half is provided with fixture block A, left half is provided with draw-in groove A, is provided with slide rail inside cross bar, is provided with hook in slide rail；Described case lid is provided with turn buckle.
Portable lever demonstration teaching appliance the most according to claim 1, it is characterised in that the surface of described cross bar is provided with scale.
Portable lever demonstration teaching appliance the most according to claim 1, it is characterised in that described fixture block A and fixture block B is connected on cross bar and support by spring A and spring respectively.
Portable lever demonstration teaching appliance the most according to claim 1, it is characterised in that described support and cross bar junction are matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116472.XU CN205508218U (en) | 2015-12-29 | 2015-12-29 | Portable lever demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116472.XU CN205508218U (en) | 2015-12-29 | 2015-12-29 | Portable lever demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205508218U true CN205508218U (en) | 2016-08-24 |
Family
ID=56720245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521116472.XU Expired - Fee Related CN205508218U (en) | 2015-12-29 | 2015-12-29 | Portable lever demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205508218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710381A (en) * | 2016-12-14 | 2017-05-24 | 刘艳茹 | Pulley assembly for physics teaching, and use method of pulley assembly |
| CN107527538A (en) * | 2017-09-19 | 2017-12-29 | 贾雨祺 | A kind of Physics Learning can use lever principle apparatus for demonstrating |
-
2015
- 2015-12-29 CN CN201521116472.XU patent/CN205508218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710381A (en) * | 2016-12-14 | 2017-05-24 | 刘艳茹 | Pulley assembly for physics teaching, and use method of pulley assembly |
| CN107527538A (en) * | 2017-09-19 | 2017-12-29 | 贾雨祺 | A kind of Physics Learning can use lever principle apparatus for demonstrating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160824 Termination date: 20161229 |