CN203825899U - Physical experiment demonstration table - Google Patents
Physical experiment demonstration table Download PDFInfo
- Publication number
- CN203825899U CN203825899U CN201420269380.4U CN201420269380U CN203825899U CN 203825899 U CN203825899 U CN 203825899U CN 201420269380 U CN201420269380 U CN 201420269380U CN 203825899 U CN203825899 U CN 203825899U
- Authority
- CN
- China
- Prior art keywords
- demonstration table
- physical experiment
- swash plate
- experiment demonstration
- sliding block
- 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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Abstract
The utility model provides a physical experiment demonstration table. The structure of the physical experiment demonstration table comprises an inclined board (1), a chassis (2), a sliding block locating device (3), a stroke support (4) and the like. The inclined board (1) is provided with scales. The sliding block locating device (3) is provided with an arc-shaped groove for placing a round sliding block, and the sliding block locating device (3) is further provided with a contact switch (6), a timing switch (9) and a time liquid crystal display screen (10). The physical experiment demonstration table of the utility model has advantages, such as simple structure, convenient utilization, smart conception, etc., the inclination angle of the inclined board can be set to be different inclination angles through a fastening bolt reference angle measuring instrument on a retractable bar, multi-stroke experiments can be performed by adopting an adjustable stroke support, the contact switch and a sensor are adopted so as to be matched with a PLC controller to realize the accurate timing of the sliding block slipping time, and by adopting the scheme, the experiment result accuracy can be ensured, and the experiment efficiency can be improved.
Description
Technical field
The utility model relates to a kind of experimental apparatus, specifically a kind of Physical Experiment Demonstration table.
Background technology
In primary school's Physical Experiment, the experiment of giving lessons about gravity, friction force principle is absolutely necessary, existing physics demonstration device is generally that a slide block is placed on a swash plate, with ruler or tape measure, go out the length of swash plate, then manually with stopwatch, record the sliding time of slide block, and then again gravity, friction force situation are carried out to theory and calculate, there is following problem in this test unit: the angle of inclination of swash plate is inconvenient to locate and measure; The sliding time manual time-keeping of slide block, accuracy rate is inadequate, and error is larger, is unfavorable for the theoretical analysis of experimental result.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of Physical Experiment Demonstration table simple in structure, easy to use is provided.
The technical solution of the utility model realizes in the following manner, this a kind of Physical Experiment Demonstration table, its structure comprises swash plate (1), chassis (2), slide block positioning device (3) and stroke support (4) etc., described swash plate (1) is provided with scale, described slide block positioning device (3) is provided with a deep-slotted chip breaker for placing round slider, on it, be also provided with and tap switch (6), time switch (9) and time LCDs (10).
As preferably, described swash plate (1) is hinged by rotating shaft (13) with chassis (2), and described chassis (2) are provided with rubber suction cups (11).
As preferably, described stroke support (4) is connected in by bolt (8) in the chute (12) of offering swash plate (1) side, and described stroke support (4) is provided with sensor (7).
As preferably, on described Demonstration table, be also provided with angel measuring instrument (5), angel measuring instrument (5) is connected on chassis (2).
As preferably, described slide block positioning device is provided with PLC controller in (3).
As preferably, on described swash plate (1), be hinged with expansion link (14), it connects telescopic sleeving rod (15) by fastening bolt (16).
The beneficial effects of the utility model are:
A kind of Physical Experiment of the present utility model with Demonstration table have simple in structure, easy to use, the feature such as be skillfully constructed, differing tilt angles can be set with reference to angel measuring instrument by the fastening bolt on expansion link in the angle of inclination of swash plate, adopt adjustable stroke support to carry out the experiment of multiple-pass, employing taps switch and coordinates PLC controller can realize the accurate timing of slide block coasting time with sensor, adopt such scheme, the accuracy that can guarantee experimental result, has improved conventional efficient.
Accompanying drawing explanation
Accompanying drawing 1 is structural front view of the present utility model.
Accompanying drawing 2 is structure left views of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, a kind of Physical Experiment of the present utility model is described in detail below with Demonstration table.
As shown in accompanying drawing 1, Fig. 2, this a kind of Physical Experiment Demonstration table, its structure comprises swash plate (1), chassis (2), slide block positioning device (3) and stroke support (4) etc., described swash plate (1) is provided with scale, described slide block positioning device (3) is provided with a deep-slotted chip breaker for placing round slider, on it, be also provided with and tap switch (6), time switch (9) and time LCDs (10).
Described swash plate (1) is hinged by rotating shaft (13) with chassis (2), and described chassis (2) are provided with rubber suction cups (11).
Described stroke support (4) is connected in by bolt (8) in the chute (12) of offering swash plate (1) side, and described stroke support (4) is provided with sensor (7).On described Demonstration table, be also provided with angel measuring instrument (5), angel measuring instrument (5) is connected on chassis (2).Described slide block positioning device is provided with PLC controller in (3).
On described swash plate (1), be hinged with expansion link (14), it connects telescopic sleeving rod (15) by fastening bolt (16).
Described sensor adopts traditional force sensor, the described switch that taps can be selected the automatically controlled inductive switch that the model of FESTO company production is SME-8-K-LED-24, when slide block is put on the arc section on locating device, withstand this and tap switch, when relieving slide block slides by it, tapping switch is triggered, controller is controlled timer and is started timing, when slide block slides to stroke support and when force sensor on it contacts, controller is accepted the signal controlling timer that sensor sends and is stopped timing, so far, swash plate angle of inclination, the coasting distance of slide block and time are all known, be convenient to carry out the further analysis of experimental principle.
A kind of Physical Experiment of the present utility model with Demonstration table have simple in structure, easy to use, the feature such as be skillfully constructed, differing tilt angles can be set with reference to angel measuring instrument by the fastening bolt on expansion link in the angle of inclination of swash plate, adopt adjustable stroke support to carry out the experiment of multiple-pass, employing taps switch and coordinates PLC controller can realize the accurate timing of slide block coasting time with sensor, adopt such scheme, the accuracy that can guarantee experimental result, has improved conventional efficient.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (6)
1. a Physical Experiment Demonstration table, it is characterized in that: this Demonstration table mainly comprises swash plate (1), chassis (2), slide block positioning device (3) and stroke support (4) etc., described swash plate (1) is provided with scale, described slide block positioning device (3) is provided with a deep-slotted chip breaker for placing round slider, on it, be also provided with and tap switch (6), time switch (9) and time LCDs (10).
2. Physical Experiment Demonstration table according to claim 1, is characterized in that: described swash plate (1) is hinged by rotating shaft (13) with chassis (2), and described chassis (2) are provided with rubber suction cups (11).
3. Physical Experiment Demonstration table according to claim 2, it is characterized in that: described stroke support (4) is connected in by bolt (8) in the chute (12) of offering swash plate (1) side, and described stroke support (4) is provided with sensor (7).
4. Physical Experiment Demonstration table according to claim 3, is characterized in that: on described Demonstration table, be also provided with angel measuring instrument (5), angel measuring instrument (5) is connected on chassis (2).
5. Physical Experiment Demonstration table according to claim 4, is characterized in that: described slide block positioning device is provided with PLC controller in (3).
6. Physical Experiment Demonstration table according to claim 5, is characterized in that: on described swash plate (1), be hinged with expansion link (14), it connects telescopic sleeving rod (15) by fastening bolt (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269380.4U CN203825899U (en) | 2014-05-19 | 2014-05-19 | Physical experiment demonstration table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269380.4U CN203825899U (en) | 2014-05-19 | 2014-05-19 | Physical experiment demonstration table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825899U true CN203825899U (en) | 2014-09-10 |
Family
ID=51481373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269380.4U Expired - Fee Related CN203825899U (en) | 2014-05-19 | 2014-05-19 | Physical experiment demonstration table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825899U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510222A (en) * | 2014-09-27 | 2016-04-20 | 中国石油化工集团公司 | Dynamic friction coefficient measuring device of drilling fluid mud cake and method thereof |
| CN108766141A (en) * | 2018-08-09 | 2018-11-06 | 浙江大学城市学院 | A kind of mechanical accurate fine motion inclined-plane mechanics series experiment instrument |
| CN111595845A (en) * | 2020-04-09 | 2020-08-28 | 新兴际华集团有限公司 | Method for analyzing structure and performance of 45 steel laser remelting layer |
-
2014
- 2014-05-19 CN CN201420269380.4U patent/CN203825899U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510222A (en) * | 2014-09-27 | 2016-04-20 | 中国石油化工集团公司 | Dynamic friction coefficient measuring device of drilling fluid mud cake and method thereof |
| CN108766141A (en) * | 2018-08-09 | 2018-11-06 | 浙江大学城市学院 | A kind of mechanical accurate fine motion inclined-plane mechanics series experiment instrument |
| CN111595845A (en) * | 2020-04-09 | 2020-08-28 | 新兴际华集团有限公司 | Method for analyzing structure and performance of 45 steel laser remelting layer |
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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: 20140910 Termination date: 20150519 |
|
| EXPY | Termination of patent right or utility model |