CN205050440U - Different inclinations dolly experimental apparatus that tests speed - Google Patents
Different inclinations dolly experimental apparatus that tests speed Download PDFInfo
- Publication number
- CN205050440U CN205050440U CN201520838328.0U CN201520838328U CN205050440U CN 205050440 U CN205050440 U CN 205050440U CN 201520838328 U CN201520838328 U CN 201520838328U CN 205050440 U CN205050440 U CN 205050440U
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- CN
- China
- Prior art keywords
- base
- pad
- dolly
- motor
- backup pad
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- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a different inclinations dolly experimental apparatus that tests speed, the on -line screen storage device comprises a base, the one end of base articulates there is the backup pad, be provided with gear and rack between base and the backup pad, the gear passes through the motor and sets up in the base, the upper end of rack articulates in the backup pad. The articulated position department of base and backup pad is provided with the pivot. One side of base is close to pivot department and is provided with the protractor. The one end that the pivot is close to to the backup pad is provided with the dog, one side of backup pad is provided with ruler, the zero graduation line of ruler and the starting point position scale mark parallel and level of backup pad department dolly. Last control motor corotation and the direction changing corotation button and reversal button of being provided with of motor seat, still be provided with on the base and begin button and time display. Time measurable quantity multiunit data that this scheme can the accurate recording dolly be gone have improved the interest that the student learnt physics knowledge, and the student of being convenient for understands and grasp.
Description
Technical field
The utility model relates to a kind of physics experiment equipment, more particularly, relates to one and can realize different angle measurement dolly speed experiments device.
Background technology
In physics, a lot of physical equation is dry as dust, and is not easy to memory, and student gets up to lose interest in especially in study.Teaching aid is as a kind of model, and a kind of instrument, can well adjust the interest of Students ' Learning physical knowledge.In physics, the object be positioned on smooth slope is subject to self gravitation and inclined-plane to the effect of the support normal power of physics, and making a concerted effort along inclined-plane downwards of two power, object does accelerated motion under this effect of making a concerted effort.The Physical Experiment adjustable slope teaching aid that more existing document is announced, it is hinged that one horizontal slope panel and inclined slope panel pass through a rotating shaft, the free end of two slope panels connects a back up pad respectively, and the change by regulating the distance between two back up pads to realize bevel inclination angle, so that the motion studied on slope and mechanical model.Also have a kind of physical teaching aid that some documents are announced, the base plate of horizontality and one end of hang plate are articulated and connected, and the other end is by realizing the change of inclination angle of inclined plane with the back up pad of the groove fit being positioned at diverse location.Above-mentioned prior art is not provided for the model studying object receiving force and motion conditions on inclined-plane, accurately can not measure the speed of dolly when different gradient.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of rational in infrastructure, feel directly perceived, easy to adjust, measure the experimental provision that accurate different angle measures little vehicle speed.
In order to solve the problem, the utility model embodiment proposes a kind of different angle dolly and to test the speed experimental provision, comprise base, one end of described base is hinged with back up pad, be provided with gear and tooth bar between described base and back up pad, described gear is arranged at base by motor, and the upper end thereof of described tooth bar is in back up pad, described tooth bar is slidably connected to base, and the axle that described gear is fixed in motor is meshed with tooth bar.
Wherein, the articulated position place of described base and back up pad is provided with rotating shaft.
Wherein, the side of described base is provided with protractor near rotating shaft place.
Wherein, back up pad is provided with block near one end of rotating shaft, and the other end of described back up pad is provided with dolly reference position scale mark.
Wherein, the side of described back up pad is provided with ruler, and the length of described ruler equals the length of back up pad, and the zero graduation line of ruler is concordant with the start position scale mark of back up pad place dolly.
Wherein, described motor is fixed in base by support of motor.
Wherein, described motor base is provided with controls the rotating forward button that rotates and reverse of motor and invert button.
Wherein, described base is also provided with start button and time display.
Wherein, described block is made by the good cystosepiment of elasticity.
Wherein, described tooth bar is slidably connected to base by T-slot.
Compared with prior art, the beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, different angle that the utility model provides measures dolly speed experiments device, rotates and reverse by motor the angle adjusted between base and back up pad, easy to operate.By ruler and the direct reading numerical values of protractor, convenient, flexible; And be provided with dolly reference position point on the supporting plate, dolly reference position point is concordant with the zero graduation line of ruler, convenient reading.Base is also provided with start button and time display, can accurate recording dolly travel time, can multi-group data be measured, improve the interest of Students ' Learning physical knowledge, be convenient to student and understand and grasp.
Accompanying drawing explanation
Fig. 1 is that the different angle dolly of the utility model embodiment tests the speed the structural representation of experimental provision.
Description of reference numerals:
1, base;
2, back up pad;
3, rotating shaft;
4, protractor;
5, ruler;
6, block;
7, tooth bar;
8, gear;
9, support of motor;
10, button is rotated forward;
11, motor;
12, invert button;
13, start button;
14, time display.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, the utility model proposes a kind of different angle dolly to test the speed experimental provision, comprise base 1, one end of described base 1 is hinged with back up pad 2, gear 8 and tooth bar 7 is provided with between described base 1 and back up pad 2, described gear 8 is arranged at base 1 by motor 11, the upper end thereof of described tooth bar 7 is in back up pad 2, described tooth bar 7 is slidably connected to base 1, the axle that described gear 8 is fixed in motor 11 is meshed with tooth bar 7, described motor 11 is fixed in base 11 by support of motor 9, described motor base 11 is provided with and controls the rotating forward button 10 that rotates and reverse of motor and invert button 12.
Further, the articulated position place of described base 1 and back up pad 2 is provided with rotating shaft 3, the side of described base 1 is provided with protractor 4 near rotating shaft 3 place, and back up pad 2 is provided with block 6 near one end of rotating shaft 3, and the other end of described back up pad 2 is provided with dolly reference position scale mark.
Further, the side of described back up pad 2 is provided with ruler 5, and the length of described ruler 5 equals the length of back up pad 2, and the zero graduation line of ruler 5 is concordant with the start position scale mark of back up pad 2 place dolly.
Further, described base 1 is also provided with start button 13 and time display 14, described block 6 is made by the good cystosepiment of elasticity, and described tooth bar 7 is slidably connected to base 1 by T-slot.
The utility model ground use procedure is as described below:
When needing to use the speed of dolly in this measurement device different angle situation, first according to the size wanting the inclination angle selected, rotating and reverse of motor 11 is controlled by the rotating forward button 10 and invert button 12 that are arranged at support of motor 9, thus motor 11 drives the gear 8 being fixed in motor 11 axle, gear 8 drives back up pad 2 by the tooth bar 7 be engaged with, at this moment, can according to the angle read between the protractor 4 being arranged at base 1 between back up pad 2 and base 1, when angle is suitable, unclamp and rotate forward button 10 or invert button 12, motor 11 is made to stop at this position.
Dolly is positioned over the start position scale mark place of back up pad 2 place dolly, press start button 13 simultaneously and decontrol dolly, at this moment time display 14 starts timing, and single clicks start button 13 can record the time that start button 13 presses.Can read according to ruler 5 the concrete coordinate that dolly is in diverse location like this, then according to the time of time display 14 reality, the time location image of dolly can be made.
Then different inclination value is changed, when namely can be determined at different angle, the travelling speed of dolly in back up pad 2.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a different angle dolly tests the speed experimental provision, comprise base, it is characterized in that, one end of described base is hinged with back up pad, be provided with gear and tooth bar between described base and back up pad, described gear is arranged at base by motor, and the upper end thereof of described tooth bar is in back up pad, described tooth bar is slidably connected to base, and the axle that described gear is fixed in motor is meshed with tooth bar;
Wherein, the articulated position place of described base and back up pad is provided with rotating shaft;
Wherein, the side of described base is provided with protractor near rotating shaft place;
Wherein, back up pad is provided with block near one end of rotating shaft, and the other end of described back up pad is provided with dolly reference position scale mark;
Wherein, the side of described back up pad is provided with ruler, and the length of described ruler equals the length of back up pad, and the zero graduation line of ruler is concordant with the start position scale mark of back up pad place dolly.
2. different angle dolly according to claim 1 tests the speed experimental provision, and it is characterized in that, described motor is fixed in base by support of motor.
3. different angle dolly according to claim 2 tests the speed experimental provision, it is characterized in that, described motor base is provided with and controls rotating forward button that motor rotates and reverse and invert button.
4. different angle dolly according to claim 1 and 2 tests the speed experimental provision, it is characterized in that, described base is also provided with start button and time display.
5. different angle dolly according to claim 1 tests the speed experimental provision, and it is characterized in that, described block is made by cystosepiment.
6. different angle dolly according to claim 1 tests the speed experimental provision, and it is characterized in that, described tooth bar is slidably connected to base by T-slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838328.0U CN205050440U (en) | 2015-10-27 | 2015-10-27 | Different inclinations dolly experimental apparatus that tests speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838328.0U CN205050440U (en) | 2015-10-27 | 2015-10-27 | Different inclinations dolly experimental apparatus that tests speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050440U true CN205050440U (en) | 2016-02-24 |
Family
ID=55343994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520838328.0U Expired - Fee Related CN205050440U (en) | 2015-10-27 | 2015-10-27 | Different inclinations dolly experimental apparatus that tests speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205050440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898202A (en) * | 2017-04-24 | 2017-06-27 | 王国锋 | Integrate the experimental bench of physics teaching and Students ' Learning |
-
2015
- 2015-10-27 CN CN201520838328.0U patent/CN205050440U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898202A (en) * | 2017-04-24 | 2017-06-27 | 王国锋 | Integrate the experimental bench of physics teaching and Students ' Learning |
| CN106898202B (en) * | 2017-04-24 | 2019-07-05 | 温州翔达教仪有限公司 | Integrate the experimental bench of physics teaching and student's study |
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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: 20160224 Termination date: 20161027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |