CN206976103U - A kind of visual slide rheostat of resistance - Google Patents
A kind of visual slide rheostat of resistance Download PDFInfo
- Publication number
- CN206976103U CN206976103U CN201720779715.0U CN201720779715U CN206976103U CN 206976103 U CN206976103 U CN 206976103U CN 201720779715 U CN201720779715 U CN 201720779715U CN 206976103 U CN206976103 U CN 206976103U
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- CN
- China
- Prior art keywords
- resistance
- housing
- tape
- guide rod
- slider
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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.)
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
It the utility model is related to the experimental instrument field of a kind of visual slide rheostat of resistance, physics student or Experiments of Electricity.Including support body, resistance wire, guide rod and slider, resistance wire is cylindrical in shape and is arranged on support body, and guide rod is fixed on support body, and slider is arranged on guide rod and can slided along guide rod, and the slider is used for electric connection resistance silk and guide rod；Tape accommodating groove along its length is provided with guide rod, tape body with a scale is provided with tape accommodating groove, the slider includes housing, guide wheel and tensioning wheel, guide wheel and tensioning wheel are arranged in housing, observation panel is provided with housing, at tape body priority pile warp tensioning wheel and guide wheel to observation panel, tape body scale can be read by observation panel to determine the resistance value of resistance wire live part.Make the scale of tape corresponding with the resistance value of the resistance wire of position below using the tape structure being pre-designed in the present apparatus, so that reading the resistors match of resistance scale and the actual access circuit part of slide resistor when slider slides from the position of slider.
Description
Technical field
It the utility model is related to the laboratory apparatus of a kind of visual slide rheostat of resistance, physics student or Experiments of Electricity
Field.
Background technology
Slide rheostat is that one of device is commonly used in electricity, and its operation principle is to access circuit part resistance by changing
The length of line changes resistance, so as to gradually change the size of the electric current in circuit.The resistance wire of slide rheostat is usually
Fusing point is high, and the big nichrome of resistance, metallic rod is usually the small metal of resistance, so when the timing of resistance cross section area one, electricity
Resistance silk is longer, and resistance is bigger, and resistance wire is shorter, and resistance is smaller.Used slide rheostat, does not often have during school experiment
The function that numerical value is read, so as to influence the determination of resistance value when student judges that slide rheostat uses, it is not convenient to use.
The content of the invention
The purpose of this utility model is, solves the above problems, and devises the utility model, there is provided one kind can directly be read
The slide rheostat structure of power taking resistance, and then it is convenient to the use of slide rheostat and the determination of resistance value.
Technical scheme is used by the utility model solves its technical problem：
The utility model discloses a kind of visual slide rheostat of resistance, including support body, resistance wire, guide rod and slip
Device, resistance wire are cylindrical in shape and are arranged on support body, and guide rod is fixed on support body, and slider is arranged on guide rod and can slided along guide rod
Dynamic, the slider is used for electric connection resistance silk and guide rod；Tape accommodating groove along its length is provided with guide rod, tape is received
Groove of receiving is interior to be provided with tape body with a scale, and the slider includes housing, guide wheel and tensioning wheel, and guide wheel and tensioning wheel are set
It is placed in housing, is provided with observation panel on housing, at tape body priority pile warp tensioning wheel and guide wheel to observation panel, passes through sight
Tape body scale can be read to determine the resistance value of resistance wire live part in Cha Kou.
Make the resistance of the scale and the resistance wire of position below of tape in the present apparatus using the tape structure being pre-designed
Value is corresponding, so that reading resistance scale and the actual access circuit portion of slide resistor from the position of slider when slider slides
The resistors match divided.
Further, observation panel is arranged at case top center, and a pair of guide wheels and a pair of tensioning wheels are separately positioned on housing
Interior both sides；At the tensioning wheel and guide wheel to observation panel of tape body priority pile warp side, then priority pile warp opposite side again
Guide wheel and tensioning wheel stretch out housing.It is designed to ensure that scale closer looks at mouth by guide wheel and tensioning wheel, enters
And from being convenient at the observation panel resistance value scale.
Further, be respectively equipped with the both sides of housing and pave device, pave device lower end stretch into tape accommodating groove for
Tape body is guided to tape accommodating groove.Because the scale of scale resistance value does not move with the slip of slider, therefore, adopt
With pave device be designed to ensure storage of the tape body in tape accommodating groove.
Further, guide wheel is additionally provided with housing, guide wheel is butted on the downside of guide rod.The guide wheel is designed to raising slider
The flexibility of slip.
Further, the position that observation panel is corresponded in the housing is provided with lamp body, and lamp body is electrically connected with switch and power supply, switch
It is arranged on housing and stretches out outside housing, tape body is placed between observation panel and lamp body, and the tape body is translucent and with lamp
Body is as background light.The design for being designed to be used as background light by lamp body of the structure, so as to be convenient to the reading of scale.
Further, convex lens is provided with the observation panel for the scale on amplification tape body.Pass through setting for convex lens
Meter, is convenient to the reading of scale.
Further, the housing both sides branch is provided with for the tape body for passing in and out housing to be spread in tape accommodating groove
Pave device, it is in the sheet that is vertically arranged that this, which paves device, paves on the upside of device and is fixed on housing, downside shape in curved surface.The paving
The structure of flat device, effectively tape body can be pushed into tape accommodating groove, and then ensure the service life of tape body.
The beneficial effects of the utility model are：
1st, the electricity of the scale and the resistance wire of position below of tape is made in the present apparatus using the tape structure being pre-designed
Resistance is corresponding, so that reading resistance scale and the actual access circuit of slide resistor from the position of slider when slider slides
Partial resistors match；
The 2nd, a kind of slide rheostat structure that can directly read resistance value is provided, and then be convenient to making for slide rheostat
With the determination with resistance value.
Brief description of the drawings
Fig. 1 is the structure chart of this slide rheostat；
Reference：1- support bodys, 2- resistance wires, 3- binding posts, 4- guide rods, 5- sliders, 6- guide wheels, the storage of 7- tapes
Groove, 8- housings, 9- observation panels, 10- switches, 11- lamp bodies, 12- power supplys, 13- guide wheels, 14- tensioning wheels, 15- pave device, 16-
Tape body.
Embodiment
Embodiment 1
As shown in figure 1, the visual slide rheostat of a kind of resistance of the present utility model, including support body 1, resistance wire 2, lead
Bar 4 and slider 5, resistance wire 2 are cylindrical in shape and are arranged on support body 1, and guide rod 4 is fixed on support body 1, and slider 5, which is arranged on, leads
It can slide on bar 4 and along guide rod 4, the slider 5 is used for electric connection resistance silk 2 and guide rod 4；It is provided with along its length on guide rod 4
The tape accommodating groove 7 in direction, tape accommodating groove 7 is interior to be provided with tape body 16 with a scale, and slider 5 includes housing 8, guide wheel
13 and tensioning wheel 14, guide wheel 13 and tensioning wheel 14 be arranged in housing 8, observation panel 9, tape body 16 are provided with housing 8
At priority pile warp tensioning wheel 14 and guide wheel 13 to observation panel 9, the scale of tape body 16 can be read by observation panel 9 to determine electricity
Hinder the resistance value of the live part of silk 2.Observation panel 9 is arranged at the center of top of housing 8, and a pair of guide wheels 13 and a pair of tensioning wheels 14 divide
The both sides not being arranged in housing 8；At the tensioning wheel 14 and guide wheel 13 to observation panel 9 of the priority pile warp side of tape body 16,
Then the guide wheel 13 of priority pile warp opposite side and tensioning wheel 14 stretch out housing 8 again.It is respectively equipped with the both sides of housing 8 and paves device
15, the lower end for paving device 15 is stretched into tape accommodating groove 7 for tape body 16 is guided to tape accommodating groove 7.In housing 8
Guide wheel 6 is inside additionally provided with, guide wheel 6 is butted on the downside of guide rod 4.The position that observation panel 9 is corresponded in housing 8 is provided with lamp body 11, the electricity of lamp body 11
Switch 10 and power supply 12 are connected with, switch 10 is arranged on housing 8 and stretched out outside housing 8, and tape body 16 is placed in the He of observation panel 9
Between lamp body 11, the tape body 16 is translucent and is used as background light using lamp body 11.Convex lens is provided with observation panel 9 for putting
Scale on big tape body 16.The both sides branch of housing 8 is provided with receives for the tape body 16 for passing in and out housing 8 to be spread into tape
Receive and pave device 15 in groove 7, it is in the sheet being vertically arranged that this, which paves device 15, and the upside for paving device 15 is fixed on housing 8, downside
Shape in curved surface.
The present apparatus when in use, it is soft go out body on scale relative to the fixation of resistance wire 2 below, and scale is corresponding
The resistance value of lower resistance per square, when slider 5 slides, scale, which enters, passes through observation panel 9 in housing 8, realize the reading of scale, when
When sliding again, scale changes with the position of slider 5 for slip, so as to ensure the scale at observation panel 9 with below
The actual access circuit of resistance wire 2 resistance value matching.
Above-described embodiment is not the restriction to embodiment just for the sake of the done citing of clearly explanation.For
For those skilled in the art, it can also make other changes in different forms on the basis of the above description.
There is no necessity and possibility to exhaust all the enbodiments.And the obvious changes or variations thus extended out is still
In the scope of protection of the utility model.
Claims (7)
1. a kind of visual slide rheostat of resistance, it is characterised in that including support body（1）, resistance wire（2）, guide rod（4）And cunning
Dynamic device（5）, resistance wire（2）It is cylindrical in shape and is arranged on support body（1）On, guide rod（4）It is fixed on support body（1）On, slider（5）Set
In guide rod（4）Above and can be along guide rod（4）Slide, the slider（5）For electric connection resistance silk（2）With guide rod（4）；Guide rod（4）
On be provided with tape accommodating groove along its length（7）, tape accommodating groove（7）It is interior to be provided with tape body with a scale（16）,
The slider（5）Including housing（8）, guide wheel（13）And tensioning wheel（14）, guide wheel（13）And tensioning wheel（14）It is arranged at
Housing（8）It is interior, housing（8）On be provided with observation panel（9）, tape body（16）Priority pile warp tensioning wheel（14）And guide wheel（13）
To observation panel（9）Place, passes through observation panel（9）Tape body can be read（16）Scale is to determine resistance wire（2）The electricity of live part
Resistance.
2. the visual slide rheostat of resistance as claimed in claim 1, it is characterised in that observation panel（9）It is arranged at housing
（8）Center of top, a pair of guide wheels（13）With a pair of tensioning wheels（14）It is separately positioned on housing（8）Interior both sides；Tape body
（16）The tensioning wheel of priority pile warp side（14）And guide wheel（13）To observation panel（9）Place, then priority pile warp opposite side again
Guide wheel（13）And tensioning wheel（14）Stretch out housing（8）.
3. the visual slide rheostat of resistance as claimed in claim 2, it is characterised in that in housing（8）Both sides difference
Provided with paving device（15）, pave device（15）Lower end stretch into tape accommodating groove（7）It is interior for by tape body（16）Guiding is extremely
Tape accommodating groove（7）.
4. the visual slide rheostat of resistance as claimed in claim 2, it is characterised in that in housing（8）Inside it is additionally provided with and leads
Wheel（6）, guide wheel（6）It is butted on guide rod（4）Downside.
5. the visual slide rheostat of resistance as claimed in claim 1, it is characterised in that the housing（8）Interior corresponding sight
Cha Kou（9）Position be provided with lamp body（11）, lamp body（11）It is electrically connected with switch（10）And power supply（12）, switch（10）It is arranged on shell
Body（8）Go up and stretch out housing（8）Outside, tape body（16）It is placed in observation panel（9）And lamp body（11）Between, the tape body（16）
It is translucent and with lamp body（11）As background light.
6. the visual slide rheostat of resistance as claimed in claim 5, it is characterised in that the observation panel（9）Place is set
There is convex lens for amplifying tape body（16）On scale.
7. the visual slide rheostat of resistance as claimed in claim 1, it is characterised in that the housing（8）Both sides branch
It is provided with for housing will to be passed in and out（8）Tape body（16）Spread into tape accommodating groove（7）Interior paves device（15）, this paves device
（15）In the sheet being vertically arranged, device is paved（15）Upside be fixed on housing（8）On, downside shape in curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779715.0U CN206976103U (en) | 2017-06-30 | 2017-06-30 | A kind of visual slide rheostat of resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779715.0U CN206976103U (en) | 2017-06-30 | 2017-06-30 | A kind of visual slide rheostat of resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206976103U true CN206976103U (en) | 2018-02-06 |
Family
ID=61406190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720779715.0U Expired - Fee Related CN206976103U (en) | 2017-06-30 | 2017-06-30 | A kind of visual slide rheostat of resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206976103U (en) |
-
2017
- 2017-06-30 CN CN201720779715.0U patent/CN206976103U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180206 Termination date: 20190630 |