CN204029508U - A kind of slide rheostat of improvement - Google Patents
A kind of slide rheostat of improvement Download PDFInfo
- Publication number
- CN204029508U CN204029508U CN201420497833.9U CN201420497833U CN204029508U CN 204029508 U CN204029508 U CN 204029508U CN 201420497833 U CN201420497833 U CN 201420497833U CN 204029508 U CN204029508 U CN 204029508U
- Authority
- CN
- China
- Prior art keywords
- slide rheostat
- ceramic cylinder
- body frame
- sliding shoe
- ferrule
- 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
Links
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The utility model discloses a kind of slide rheostat of improvement, comprise hold-down nut, ceramic cylinder is fixed by fixing threaded hole through in the middle part of body frame by described hold-down nut, described ceramic cylinder outer felt is wound with resistance wire and two ends and middle part are provided with ferrule structure, outside is provided with protective sleeve, be provided with copper wire inside described ceramic cylinder and reinforce radiator structure and copper wire two ends are connected with radiating copper sheet, described ferrule bottom is provided with binding post, described sliding bar and scale two ends are all connected to body frame upper end, described sliding shoe is arranged on sliding bar by binding ring, described snap close connects binding ring by pull bar and is arranged on sliding shoe top, described sucker is arranged on corner, body frame bottom.The slide rheostat of this improvement, existing reinforcing adds obdurability anti-collision performance has heat sinking function again, avoid long period of experiments resistance wire to generate heat the phenomenon causing the slide rheostat life-span short, locking mechanism is added at sliding shoe, solve the impact of human factor on resistance, improve the accuracy of slide rheostat.
Description
Technical field
The utility model relates to electronic experiment equipment technical field, is specially a kind of slide rheostat of improvement.
Background technology
Slide rheostat is in calibration electric meter and a kind of rheostat often used in middle school physical experiment, resistance wire in existing slide rheostat and conduction brush be all directly exposed outside, easily be stained with dust, the things such as water, rheostatic performance and life-span is affected after being stained with these foreign material, even rheostat can be damaged, have bottom a slide rheostat and be provided with magnet arrangement, this structure applicability is narrow, and can not firmly be fixed on blackboard and laboratory table, slide rheostat is after long period of experiments, resistance wire can generate heat, this problem can't neglect, he have impact on the useful life of slide rheostat greatly.
Utility model content
The purpose of this utility model is the slide rheostat providing a kind of improvement, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of slide rheostat of improvement, comprises body frame, sliding bar, scale, pointer, snap close, binding ring, sliding shoe, protective sleeve, sucker, hold-down nut, resistance wire, binding post, ferrule, mesh, radiating copper sheet, copper wire, fixing threaded hole and ceramic cylinder, ceramic cylinder is fixed by fixing threaded hole through in the middle part of body frame by described hold-down nut, described ceramic cylinder outer felt is wound with resistance wire and two ends and middle part are provided with ferrule structure, outside is provided with protective sleeve, described protective sleeve surface is provided with some mesh, be provided with copper wire inside described ceramic cylinder and reinforce radiator structure and copper wire two ends are connected with radiating copper sheet, described radiating copper sheet is arranged on ceramic cylinder two ends, described ferrule bottom is provided with binding post, described sliding bar and scale two ends are all connected to body frame upper end, described sliding shoe is arranged on sliding bar by binding ring, described snap close connects binding ring by pull bar and is arranged on sliding shoe top, described pointer is arranged on sliding shoe surface, and described sucker is arranged on corner, body frame bottom.
Preferably, equidistant scale is carved with on described scale surface.
Preferably, dustproof network structure is provided with inside described mesh.
Preferably, described binding post all there is nut facilitate wiring to use.
Preferably, described snap close is provided with fastener structure and attacker surface is provided with anti-skid structure.
Compared with prior art, the beneficial effects of the utility model are: the slide rheostat of this improvement, resistance wire is enclosed in inside by protective sleeve, can effectively play water proof and dust proof effect, protective resistance silk, copper wire structure is added in ceramic cylinder inside, existing reinforcing adds obdurability anti-collision performance has heat sinking function again, avoid long period of experiments resistance wire to generate heat the phenomenon causing the slide rheostat life-span short, this structure can extend the long service life of slide rheostat, locking mechanism is added at sliding shoe, solve the impact of human factor on resistance, improve the accuracy of slide rheostat.The slide rheostat of this improvement is under holding circuit is connected and fixed constant prerequisite, as the power supply of external circuit, with the ferrule in the middle of coil for reference point, the polarity of two-end-point can change in the change of the position of the right and left along with slide plate, intermediate point has become the breakover point of change in polarity, function is just as commutator, this function for we some time actual needs bring great convenience, design ingenious and demonstrate conveniently, do not need the rewiring when changing polarity, easy to operate, two ends are provided with hold-down nut, can effectively prevent ceramic cylinder and body frame from coming off, in addition, all sucker structure is had at each supporting leg, can more firmly be fixed on blackboard, facilitate the demonstration of teacher, also can be fixed on laboratory table when laboratory experiment simultaneously, prevent because slide rheostat is hit down to ground to such an extent as to damage by error or accidental cause.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is protective sleeve structural representation of the present utility model;
Fig. 3 is ceramic cylinder structural representation of the present utility model;
Fig. 4 is sliding shoe structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-4, the utility model provides a kind of technical scheme: a kind of slide rheostat of improvement, comprises body frame 1, sliding bar 2, scale 3, pointer 4, snap close 5, binding ring 6, sliding shoe 7, protective sleeve 8, sucker 9, hold-down nut 10, resistance wire 11, binding post 12, ferrule 13, mesh 14, radiating copper sheet 15, copper wire 16, fixing threaded hole 17 and ceramic cylinder 18, ceramic cylinder 18 is fixed by fixing threaded hole 17 through in the middle part of body frame 1 by described hold-down nut 10, described ceramic cylinder 18 outer felt is wound with resistance wire 11 and two ends and middle part are provided with ferrule 13 structure, outside is provided with protective sleeve 8, described protective sleeve 8 surface is provided with some mesh 14, dustproof network structure is provided with inside described mesh 14, be provided with copper wire 16 inside described ceramic cylinder 18 and reinforce radiator structure and copper wire 16 two ends are connected with radiating copper sheet 15, described radiating copper sheet 15 is arranged on ceramic cylinder 18 two ends, described ferrule 13 bottom is provided with binding post 12, described binding post 12 all there is nut to facilitate wiring to use, described sliding bar 2 and scale 3 two ends are all connected to body frame 1 upper end, equidistant scale is carved with on described scale 3 surface, described sliding shoe 7 is arranged on sliding bar 2 by binding ring 6, described snap close 5 connects binding ring 6 by pull bar and is arranged on sliding shoe 7 top, described snap close 5 is provided with fastener structure and attacker surface is provided with anti-skid structure, described pointer 4 is arranged on sliding shoe 7 surface, described sucker 9 is arranged on corner, body frame 1 bottom.
The utility model improve in: add copper wire 16 structure in ceramic cylinder 18 inside, toughness and the anti-collision performance of ceramic cylinder 18 can be strengthened, sliding shoe 7 is added with locking mechanism, such design improves the shortcoming that traditional slide block not easily slides, sliding shoe 7 can slide very easily, can be locked by snap close 5 after numerical value to be determined, avoid test in slide or other surprisingly cause experimental data inaccurate, when sliding shoe 7 will be moved, as long as snap close 5 is pulled upwardly, handled easily, add sucker 9 structure on each leg, improve original magnet arrangement, sucker 9 applicability is wider simultaneously also more firm than magnet.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. the slide rheostat improved, comprises body frame, sliding bar, scale, pointer, snap close, binding ring, sliding shoe, protective sleeve, sucker, hold-down nut, resistance wire, binding post, ferrule, mesh, radiating copper sheet, copper wire, fixing threaded hole and ceramic cylinder, it is characterized in that: ceramic cylinder is fixed by fixing threaded hole through in the middle part of body frame by described hold-down nut, described ceramic cylinder outer felt is wound with resistance wire and two ends and middle part are provided with ferrule structure, outside is provided with protective sleeve, described protective sleeve surface is provided with some mesh, be provided with copper wire inside described ceramic cylinder and reinforce radiator structure and copper wire two ends are connected with radiating copper sheet, described radiating copper sheet is arranged on ceramic cylinder two ends, described ferrule bottom is provided with binding post, described sliding bar and scale two ends are all connected to body frame upper end, described sliding shoe is arranged on sliding bar by binding ring, described snap close connects binding ring by pull bar and is arranged on sliding shoe top, described pointer is arranged on sliding shoe surface, and described sucker is arranged on corner, body frame bottom.
2. the slide rheostat of a kind of improvement according to claim 1, is characterized in that: equidistant scale is carved with on described scale surface.
3. the slide rheostat of a kind of improvement according to claim 1, is characterized in that: be provided with dustproof network structure inside described mesh.
4. the slide rheostat of a kind of improvement according to claim 1, is characterized in that: described binding post all has nut facilitate wiring to use.
5. the slide rheostat of a kind of improvement according to claim 1, is characterized in that: described snap close is provided with fastener structure and attacker surface is provided with anti-skid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497833.9U CN204029508U (en) | 2014-09-01 | 2014-09-01 | A kind of slide rheostat of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497833.9U CN204029508U (en) | 2014-09-01 | 2014-09-01 | A kind of slide rheostat of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029508U true CN204029508U (en) | 2014-12-17 |
Family
ID=52069343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420497833.9U Expired - Fee Related CN204029508U (en) | 2014-09-01 | 2014-09-01 | A kind of slide rheostat of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029508U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298123A (en) * | 2016-08-31 | 2017-01-04 | 安徽斯迈尔电子科技有限公司 | A kind of resistance converting means with high efficiency and heat radiation effect |
| CN110666859A (en) * | 2019-09-12 | 2020-01-10 | 东莞市丞佑五金机械有限公司 | Adjustable straight-cutter slitting machine |
| CN110828084A (en) * | 2019-09-20 | 2020-02-21 | 陈丽可 | Resistance bushing equipment |
-
2014
- 2014-09-01 CN CN201420497833.9U patent/CN204029508U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298123A (en) * | 2016-08-31 | 2017-01-04 | 安徽斯迈尔电子科技有限公司 | A kind of resistance converting means with high efficiency and heat radiation effect |
| CN110666859A (en) * | 2019-09-12 | 2020-01-10 | 东莞市丞佑五金机械有限公司 | Adjustable straight-cutter slitting machine |
| CN110828084A (en) * | 2019-09-20 | 2020-02-21 | 陈丽可 | Resistance bushing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204029508U (en) | A kind of slide rheostat of improvement | |
| CN204501090U (en) | Extremity location bed is used in a kind of animal and veterinary operation | |
| CN205016115U (en) | Multi -functional physics class teaching aid | |
| CN103456442A (en) | Sliding rheostat | |
| CN204314360U (en) | A kind of electromechanical speciality multimeter | |
| CN204516169U (en) | Physics experiment with simple pendulum device | |
| CN206058591U (en) | A kind of teaching special electric power cabinet | |
| CN203882505U (en) | Portable teaching aid used for circuit analysis basic experiments | |
| CN204154856U (en) | Triode amplifies test circuit | |
| CN204086366U (en) | A kind of circuit board voltage measurement jig | |
| CN203950486U (en) | All kinds of thyristor characteristics demonstrators | |
| CN204537578U (en) | Self-inductive phenomenon demonstration instrument | |
| CN203910121U (en) | Sliding rheostat teaching aid | |
| CN202996144U (en) | Portable electronic experiment table | |
| CN105172424A (en) | Automatic chalk sleeve for school | |
| CN203084019U (en) | Voltage and current all-in-one meter | |
| CN105139732A (en) | Electromagnetic radiation phenomenon and detection demonstration instrument | |
| CN203733544U (en) | Resistance adjustable resistor | |
| CN204231407U (en) | The wall-hanging network switch | |
| CN103680268A (en) | Research experimental box of volt-ampere characteristics of linear resistance and nonlinear resistance | |
| CN205282208U (en) | Multi -functional slide rheostat | |
| CN204669472U (en) | High bat instrument | |
| CN204303229U (en) | Characteristic of photoresistance value and application experiment instrument | |
| CN203456208U (en) | Slide rheostat | |
| CN204596277U (en) | A kind of magnetic-type circuit teaching demonstration board |
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: 20141217 Termination date: 20160901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |