CN204833828U - Assembly pulley experiment teaching aid - Google Patents
Assembly pulley experiment teaching aid Download PDFInfo
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- CN204833828U CN204833828U CN201520587996.0U CN201520587996U CN204833828U CN 204833828 U CN204833828 U CN 204833828U CN 201520587996 U CN201520587996 U CN 201520587996U CN 204833828 U CN204833828 U CN 204833828U
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- pole
- crossbeam
- teaching aid
- branch
- experiment teaching
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Abstract
This patent belongs to the model field that physics was used, specifically discloses an assembly pulley experiment teaching aid, including base, assembly pulley and crossbeam, the assembly pulley is installed on the crossbeam, wherein, still includes branch and stopper, branch articulates on the base, and is equipped with the dog on the branch, the stopper is the U -shaped, and the stopper articulates on the base to can be fixed with branch, at least, be equipped with two branch holes on the crossbeam, the branch hole is passed to branch, and the crossbeam is placed on the dog. Compare with traditional assembly pulley experiment teaching aid, what crossbeam in this scheme can be convenient pulls down, and branch can convenient changing in vertical state and horizontality, saves the aperture, and take in conveniently. Great reduction the occupation of land space of branch to, because branch is accomodate, and is also easier among the handling.
Description
Technical field
The utility model belongs to the modelling technique field of physics, particularly relates to a kind of pulley blocks experiment teaching aid.
Background technology
In the study of pulley, student also exists mistake in understanding: think that fixed pulley and the difference of travelling block are that structure is different; When thinking that they work, one is motionless, one dynamic.Meanwhile, does student also also exist some puzzlements: why not laborsaving fixed pulley is, and travelling block can economize half power? why pulley can be look at a kind of lever of distortion? for these a series of problems, teacher is difficult explanation of giving student's satisfaction also.For this reason, need to utilize pulley blocks experiment teaching aid to carry out essence demonstration, by vivid experimental implementation of starting, the essence allowing student understand pulley is a kind of lever of distortion.
Existing pulley blocks experiment teaching aid all has the inconvenient shortcoming of storage usually.Such as, publication number is the patent of CN202110695U, and disclose a kind of pulley blocks experiment teaching aid, be made up of support, pulley and coiling, pulley comprises fixed pulley and travelling block, and fixed pulley is fixed on support, and travelling block is connected by coiling.Although this patent can realize the demonstration of pulley, but, because support can not be received, so very difficult when carrying.
As can be seen here, be badly in need of one and receive pulley blocks experiment teaching aid easily.
Utility model content
The purpose of this utility model be to provide a kind of can the pulley blocks experiment teaching aid of convenient for collecting.
In order to achieve the above object, the base case that the utility model provides is: a kind of pulley blocks experiment teaching aid, comprises base, pulley blocks and crossbeam, described pulley blocks is arranged on crossbeam, wherein, also comprises pole and limited block, described pole is hinged on base, and pole is provided with block, described limited block is U-shaped, and limited block is hinged on base, and pole can be fixed, described crossbeam is provided with pole hole, and described pole is through pole hole, and crossbeam is placed on block.
Ferromagnetism pole as herein described refers to have ferromagnetic pole, the pole that the material namely with idiopathic magnetization phenomenon is made, and common material has iron, cobalt and nickel.Distance when distance between described pole refers to that pole is in vertical state between two poles.
The principle of this base case is: after pole turns to vertical state, and pole is blocked by rotary spacing block, namely completes the fixing of pole.Crossbeam, through the pole hole of crossbeam, is placed on block by pole, then complete the fixing of crossbeam, be finally arranged on crossbeam by pulley blocks, namely complete the assembling of whole pulley blocks experiment teaching aid.After education experiment completes, first take off pulley blocks, then take off crossbeam, rotary spacing block, and then rotate pole, make pole be positioned at horizontality, complete the storage of pulley blocks experiment teaching aid.
The beneficial effect of this base case is: compared with traditional pulley blocks experiment teaching aid, the crossbeam in this programme can be pulled down easily, and pole can be changed easily in vertical state and horizontality, saves space, and storage is convenient.Greatly reducing the occupation of land space of pole, and, because pole is contained, be also more prone in handling process.
Scheme two, the preferred version of scheme based on this: described base is provided with the groove for holding pole.Pole is contained in groove, more conserve space.
Scheme three: this is the preferred version of scheme two: described pole is ferromagnetism pole, is provided with magnetic part in described groove.Magnetic part has good suction magnetic action to pole, and when pole being arranged in is positioned at groove, when being in horizontality, pole is lived by magnet adsorption, prevents pole from rotating.
Scheme four: this is the preferred version of scheme three: described pole is iron pole, relative to the pole that other ferromagnetic material is made, iron pole cost is lower, and it is easier to obtain.
Scheme five: this is the preferred version of scheme three: described magnetic part is permanent magnet, relative to common magnetic part, permanent magnet can keep its magnetic for a long time, and serviceable life is higher.
Scheme six: this is the preferred version of above-mentioned either a program: described pole is hollow bar, the weight of hollow bar is lighter, convenient carrying.
Scheme seven: based on this, scheme is to the preferred version of scheme six: also comprise the suitcase for accommodating base, all puts into suitcase by base and all parts, can receiver carrying easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pulley blocks experiment teaching aid embodiment;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the structural representation of the utility model pulley blocks experiment teaching aid embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference numeral in Figure of description comprises: base 1, pole 2, limited block 3, crossbeam 4, pulley blocks 5, block 6.
As shown in Figure 1, Figure 3, a kind of pulley blocks experiment teaching aid, comprises base 1, pole 2, limited block 3, crossbeam 4 and pulley blocks 5.Base 1 is processed with groove, and the quantity of pole 2 is two, and two poles 2 are respectively by the left and right two ends of hinge at groove, and pole 2 is welded with block 6, the external diameter of block 6 is greater than the aperture of pole 2.Crossbeam 4 is drilled with two pole holes, pole 2 is through pole hole, and crossbeam 4 is placed on block 6, and pulley blocks 5 is dismountable to be arranged on crossbeam 4.As shown in Figure 2, limited block 3 is by hinge on base 1, and limited block 3 is U-shaped, and mainly a restriction pole 2 is rocked along the length direction of groove.
In addition, be also provided with permanent magnet in the groove of base 1, the hollow tubular that pole 2 is fabricated from iron, when pole 2 is arranged in groove, pole 2 is inhaled magnetic by permanent magnet, can prevent pole 2 from rocking.Further, be also provided with suitcase matched with this pulley blocks experiment teaching aid, after this pulley blocks experiment teaching aid is received, can load in suitcase, be convenient to carrying.
During specific works, first, after pole 2 is turned to vertical state, pole 2 is blocked by rotary spacing block 3, namely completes the fixing of pole.Crossbeam 4, through the pole hole of crossbeam 4, is placed on block 6 by pole 2, then complete the fixing of crossbeam 4, be finally arranged on crossbeam 4 by pulley blocks 5, namely complete the assembling of whole pulley blocks experiment teaching aid.After education experiment completes, first take off pulley blocks 5, then take off crossbeam 4, rotary spacing block 3, and then rotate pole 2, make pole 2 be positioned at horizontality, base 1 and pulley blocks are put into suitcase, namely complete the storage of pulley blocks experiment teaching aid.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in instructions etc. record the content that may be used for explaining claim.
Claims (7)
1. a pulley blocks experiment teaching aid, comprises base, pulley blocks and crossbeam, and described pulley blocks is arranged on crossbeam, it is characterized in that, also comprise pole and limited block, described pole is hinged on base, and pole is provided with block, described limited block is U-shaped, limited block is hinged on base, and pole can be fixed, and described crossbeam is provided with pole hole, described pole is through pole hole, and crossbeam is placed on block.
2. pulley blocks experiment teaching aid as claimed in claim 1, it is characterized in that, described base is provided with the groove for holding pole.
3. pulley blocks experiment teaching aid as claimed in claim 2, it is characterized in that, described pole is ferromagnetism pole, is provided with magnetic part in described groove.
4. pulley blocks experiment teaching aid as claimed in claim 3, it is characterized in that, described pole is iron pole.
5. pulley blocks experiment teaching aid as claimed in claim 3, it is characterized in that, described magnetic part is permanent magnet.
6. the pulley blocks experiment teaching aid as described in any one of claim 1-5, is characterized in that, described pole is hollow bar.
7. pulley blocks experiment teaching aid as claimed in claim 6, is characterized in that, also comprise the suitcase for accommodating base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587996.0U CN204833828U (en) | 2015-08-06 | 2015-08-06 | Assembly pulley experiment teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587996.0U CN204833828U (en) | 2015-08-06 | 2015-08-06 | Assembly pulley experiment teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204833828U true CN204833828U (en) | 2015-12-02 |
Family
ID=54691401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587996.0U Expired - Fee Related CN204833828U (en) | 2015-08-06 | 2015-08-06 | Assembly pulley experiment teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204833828U (en) |
Cited By (3)
| 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 |
| CN107256672A (en) * | 2017-07-25 | 2017-10-17 | 新昌县七星街道联星机械厂 | A kind of mechanical teaching aid for facilitating student to demonstrate |
| CN107976762A (en) * | 2017-12-26 | 2018-05-01 | 天津良益科技有限公司 | A kind of new optical bench |
-
2015
- 2015-08-06 CN CN201520587996.0U patent/CN204833828U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN107256672A (en) * | 2017-07-25 | 2017-10-17 | 新昌县七星街道联星机械厂 | A kind of mechanical teaching aid for facilitating student to demonstrate |
| CN107976762A (en) * | 2017-12-26 | 2018-05-01 | 天津良益科技有限公司 | A kind of new optical bench |
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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: 20151202 Termination date: 20160806 |