CN204791690U - From formula circular motion presentation device that restores to throne - Google Patents
From formula circular motion presentation device that restores to throne Download PDFInfo
- Publication number
- CN204791690U CN204791690U CN201520585215.4U CN201520585215U CN204791690U CN 204791690 U CN204791690 U CN 204791690U CN 201520585215 U CN201520585215 U CN 201520585215U CN 204791690 U CN204791690 U CN 204791690U
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- CN
- China
- Prior art keywords
- connecting rod
- stay cord
- circular motion
- chui
- heavy
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- 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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Abstract
The utility model discloses a from formula circular motion presentation device that restores to throne, include the base and install the vertical board on this base, the competent axis of rotation of vertical board middle part cartridge is provided with the connecting rod in this axis of rotation, heavy chui has been hung to the connecting rod end, the one end of vertical board is provided with the fixing base, and its other end is provided with the assembly pulley corresponding with above -mentioned fixing base, be equipped with the stay cord on the fixing base, the one end fixed connection of this stay cord is in on the fixing base, its other end is walked around an assembly pulley and fixed connection balancing weight is close to be provided with reset spring on the stay cord of fixing base one end reset spring with be provided with the shifting block on the stay cord between the assembly pulley, the connecting rod end is provided with the telescope tube, and heavy chui meets through this telescope tube and connecting rod. The utility model discloses can demonstrate the circular motion's in the vertical plane law, the atress condition of connecting rod when circular motion is made in the analysis can be demonstrated to the while directly perceivedly.
Description
Technical field
The utility model belongs to apparatus for demonstrating field, is specifically related to a kind of self-replaced type circular motion demonstrating device.
Background technology
Physics Course is when explaining circular motion, and for ease of understanding, teacher often needs to draw on blackboard and helps student to understand, and neither directly perceived also very dry as dust, classroom efficiency is low.And existing apparatus for demonstrating cannot automatically reset after demonstration, need personnel to carry out manual operation, waste time and energy.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of self-replaced type circular motion demonstrating device is provided, circular motion can intuitively display by enjoyably, and the student that is more convenient for understands, and demonstrates complete device simultaneously and can automatically realize resetting.
The technical scheme that the utility model adopts is: a kind of self-replaced type circular motion demonstrating device, the vertical plate comprising base and install on the base, the rotation axis of level is fitted with in the middle part of described vertical plate, this rotation axis is provided with connecting rod, described connecting rod end is hung with heavy Chui, one end of described vertical plate is provided with holder, its other end is provided with the pulley blocks corresponding with above-mentioned holder, described holder is provided with stay cord, one end of this stay cord is fixedly connected on described holder, its other end is walked around described pulley blocks and is fixedly connected with a balancing weight, back-moving spring is provided with on the stay cord of described holder one end, stay cord between described back-moving spring and described pulley blocks is provided with shifting block, the movement locus of this shifting block by described heavy Chui in the position of minimum point, described connecting rod end is provided with extension sleeve, described heavy Chui is connected with described connecting rod by this extension sleeve.
As preferably, described connecting rod is provided with alarm device, the microswitch controlling this alarm device is arranged on the end of described extension sleeve near described connecting rod.
As preferably, the sidewall of described extension sleeve is provided with Length Indication bar.
The beneficial effects of the utility model are: because the utility model adopts said structure, increase balancing weight weight, shifting block can to pulley blocks one end motion under balancing weight effect, heavy Chui is made to produce kinetic energy by collision, thus making heavy Chui produce circular motion, back-moving spring produces tensile deformation simultaneously; Alleviate balancing weight weight, utilize the elastic potential energy of back-moving spring, make shifting block to holder one end motion, automatically complete the homing action of shifting block, without the need to manual operation, time saving and energy saving.The utility model can demonstrate the rule of the circular motion in perpendicular intuitively, and simultaneously because connecting rod end is provided with extension sleeve, can demonstrate and analyze the stressing conditions of connecting rod when circling, structure is simple, easy to use, by force interesting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is bar linkage structure schematic diagram of the present utility model.
In figure: 1, base; 2, vertical plate; 3, rotation axis; 4, connecting rod; 5, heavy Chui; 6, holder; 7, pulley blocks; 8, stay cord; 9, balancing weight; 10, back-moving spring; 11, shifting block; 12, alarm device; 13, microswitch; 14, extension sleeve.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of self-replaced type circular motion demonstrating device, comprise base 1 and be arranged on the vertical plate 2 on this base 1, the rotation axis 3 of level is fitted with in the middle part of described vertical plate 2, this rotation axis 3 is provided with connecting rod 4, described connecting rod 4 end is hung with heavy Chui 5, one end of described vertical plate 2 is provided with holder 6, its other end is provided with the pulley blocks 7 corresponding with above-mentioned holder 6, described holder 6 is provided with stay cord 8, one end of this stay cord 8 is fixedly connected on described holder 6, its other end is walked around described pulley blocks 7 and is fixedly connected with a balancing weight 9, back-moving spring 10 is provided with on the stay cord 8 of described holder 6 one end, stay cord 8 between described back-moving spring 10 and described pulley blocks 7 is provided with shifting block 11, the movement locus of this shifting block 11 by described heavy Chui 5 in the position of minimum point, described connecting rod 4 end is provided with extension sleeve 14, described heavy Chui 5 is connected with described connecting rod 4 by this extension sleeve 14.
Because the utility model adopts said structure, increase balancing weight 9 weight, shifting block 11 can, to pulley blocks 7 one end motion under balancing weight 9 acts on, make heavy Chui 5 produce kinetic energy by collision, thus making heavy Chui 5 produce circular motion, back-moving spring 10 produces tensile deformation simultaneously; Alleviate balancing weight 9 weight, utilize the elastic potential energy of back-moving spring 10, make shifting block 11 to holder 6 one end motion, automatically complete the homing action of shifting block 11, without the need to manual operation, time saving and energy saving.The utility model can demonstrate the rule of the circular motion in perpendicular intuitively, and simultaneously because connecting rod 4 end is provided with extension sleeve 14, can demonstrate and analyze the stressing conditions of connecting rod 4 when circling, structure is simple, easy to use, by force interesting.
As preferably, described connecting rod 4 is provided with alarm device 12, the microswitch 13 controlling this alarm device 12 is arranged on the end of described extension sleeve 14 near described connecting rod 4, when heavy Chui 5 is at the highest notch position, extension sleeve 14 alert trigger device 12 can be compressed report to the police, remind people's connecting rod 4 stressing conditions to change.
As preferably, the sidewall of described extension sleeve 14 is provided with Length Indication bar, is more convenient for observing intuitively the situation of change of extension sleeve 14.
The above, be only the utility model preferred embodiment, therefore can not limit with this scope that the utility model implements, the equivalence namely done according to the utility model claim and description change with modify, all should still belong in scope that the utility model patent contains.
Claims (3)
1. a self-replaced type circular motion demonstrating device, comprise base (1) and be arranged on the vertical plate (2) on this base (1), described vertical plate (2) middle part is fitted with the rotation axis (3) of level, this rotation axis (3) is provided with connecting rod (4), described connecting rod (4) end is hung with heavy Chui (5), it is characterized in that: one end of described vertical plate (2) is provided with holder (6), its other end is provided with the pulley blocks (7) corresponding with above-mentioned holder (6), described holder (6) is provided with stay cord (8), one end of this stay cord (8) is fixedly connected on described holder (6), its other end is walked around described pulley blocks (7) and is fixedly connected with a balancing weight (9), back-moving spring (10) is provided with on the stay cord (8) of described holder (6) one end, stay cord (8) between described back-moving spring (10) and described pulley blocks (7) is provided with shifting block (11), the movement locus of this shifting block (11) by described heavy Chui (5) in the position of minimum point, described connecting rod (4) end is provided with extension sleeve (14), described heavy Chui (5) is connected with described connecting rod (4) by this extension sleeve (14).
2. self-replaced type circular motion demonstrating device according to claim 1, it is characterized in that: described connecting rod (4) is provided with alarm device (12), the microswitch (13) controlling this alarm device (12) is arranged on the end of described extension sleeve (14) near described connecting rod (4).
3. self-replaced type circular motion demonstrating device according to claim 1, is characterized in that: the sidewall of described extension sleeve (14) is provided with Length Indication bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520585215.4U CN204791690U (en) | 2015-08-06 | 2015-08-06 | From formula circular motion presentation device that restores to throne |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520585215.4U CN204791690U (en) | 2015-08-06 | 2015-08-06 | From formula circular motion presentation device that restores to throne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204791690U true CN204791690U (en) | 2015-11-18 |
Family
ID=54531693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520585215.4U Expired - Fee Related CN204791690U (en) | 2015-08-06 | 2015-08-06 | From formula circular motion presentation device that restores to throne |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204791690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872103A (en) * | 2017-03-23 | 2017-06-20 | 重庆科技学院 | Processional moment measuring device and assay method |
-
2015
- 2015-08-06 CN CN201520585215.4U patent/CN204791690U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872103A (en) * | 2017-03-23 | 2017-06-20 | 重庆科技学院 | Processional moment measuring device and assay method |
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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 |
Granted publication date: 20151118 Termination date: 20160806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |