CN203826150U - Slide-wire resistor - Google Patents
Slide-wire resistor Download PDFInfo
- Publication number
- CN203826150U CN203826150U CN201420135333.0U CN201420135333U CN203826150U CN 203826150 U CN203826150 U CN 203826150U CN 201420135333 U CN201420135333 U CN 201420135333U CN 203826150 U CN203826150 U CN 203826150U
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- CN
- China
- Prior art keywords
- slide
- resistance
- guide rail
- contact
- wire layer
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a slide-wire resistor. The slide-wire resistor comprises a resistance wire layer, a guide rail, a slide rod which can slide along the guide rail, a contact wheel which is arranged on the lower end of the slide rod, two reinforced clamps and two elevators, wherein the contact wheel is in contact with the resistance wire layer, the two elevators are installed on the junction of the guide rail and a slide-wire resistor frame, and the two reinforced clamps are installed on two sides of the slide rod and are in contact with the resistance wire layer. By virtue of the elevating guide rail and the controllable contact reinforced clamps, not only can the abrasion, caused by friction, of the slide-wire resistor be prevented, but also the poor contact situation caused by the too small contact area can be avoided, the service stability of the slide-wire resistor can be improved, and the service life of the slide-wire resistor can be prolonged.
Description
Technical field
The utility model relates to a kind of electronic component technology field, relates in particular to a kind of slide wire resistance.
Background technology
Slide wire resistance is electronic devices and components conventional in laboratory and Circuits System, general, slide wire resistance is at resistance wire layer top offset, to realize the terminal of guide rail connection and the variation of the resistance between the terminal of resistance wire layer by slide block, slide block is realized and being connected by close contact with resistance wire layer, the two serious wear during slip, therefore the patent of invention of the < < slide wire resistance > > (publication No. is CN102810374A) that the patent No. is 201210272380.5 is improved it, by the slide block contact wheel that replaces, reduced its frictional force, but the patent after improving exists the very few shortcoming of contact area, make it easily occur loose contact, thereby impact is normal, use.
Utility model content
The purpose of this utility model provides a kind of slide wire resistance with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of slide wire resistance, comprise resistance wire layer, guide rail, the slide bar that can slide along described guide rail and the contact wheel that is arranged on described slide bar lower end, described contact wheel contacts with described resistance wire layer, described slide wire resistance also comprises that two strengthen folder and two lifters, two described lifters are arranged on described guide rail and described slide wire resistance frame junction, and two described enhancing folders are arranged on respectively the both sides of described slide bar and contact with described resistance wire layer.
Particularly, described enhancing folder is comprised of back-up block, arc conductive plate and spring, described back-up block is fixed on described slide bar, described arc conductive plate and described back-up block are rotatably connected, the lower end of described arc conductive plate contacts with described resistance wire layer, the upper end of described arc conductive plate is fixedly connected with the first end of described spring, and the second end of described spring is fixedly connected with described slide bar.
When needs slide, with hand, pin the upper end of arc conductive plate, make the lower end of arc conductive plate and resistance wire pull-up from, slip slide bar, reaches behind desired position, then unclamps arc conductive plate, make it under the effect of spring, recover the position contacting with resistance wire layer, increased the contact area of slide bar and resistance wire layer, when loose contact appears in contact wheel, also can normally work in time.
Particularly, described lifter is provided with the elevator of screwed hole and is consisted of the lifting screw that screwed hole is controlled described elevator lifting by inside, and described elevator is fixedly connected with described guide rail.
When needs slide on a large scale, can first by rotation and lifting screw, control elevator and rise, make contact wheel depart from resistance wire layer, when sliding into approximate location, again guide rail is declined and makes contact wheel contact and finely tune with resistance wire layer, extended its useful life.
The beneficial effects of the utility model are:
A kind of slide wire resistance of the utility model by liftable guide rail with can control the enhancing contacting and press from both sides, the wearing and tearing that slide wire resistance occurs because of friction have been overcome, avoid again its contact-making surface too small and occur the situation of loose contact, increased the stability that slide wire resistance uses and the useful life that has extended slide wire resistance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of slide wire resistance of the utility model, has carried out broken section processing in figure;
Fig. 2 is the cutaway view of a kind of slide wire resistance of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of slide wire resistance of the utility model, comprise resistance wire layer 1, guide rail 2, two strengthen folder 6, two lifters 5, the slide bar 3 that can slide along guide rail 2 and the contact wheel 4 that is arranged on slide bar 3 lower ends, contact wheel 4 contacts with resistance wire layer 1, two lifters 5 are arranged on guide rail 2 and slide wire resistance frame (not shown) junction, two strengthen folder 6 and are arranged on respectively the both sides of slide bar 3 and contact with resistance wire layer 1, strengthen folder 6 by back-up block 53, arc conductive plate 51 and spring 52 form, back-up block 53 is fixed on slide bar 3, arc conductive plate 51 is rotatably connected with back-up block 53, the lower end of arc conductive plate 51 contacts with resistance wire layer 1, the upper end of arc conductive plate 51 is fixedly connected with the first end of spring 52, the second end of spring 52 is fixedly connected with slide bar 3, , lifter 5 is provided with the elevator 62 of screwed hole and is consisted of the lifting screw 61 that screwed hole is controlled elevator 62 liftings by inside, elevator 62 is fixedly connected with guide rail 2.
The operation principle of a kind of slide wire resistance of the utility model is as follows:
This slide wire resistance is when needs slide on a large scale, thereby can first by rotation and lifting screw 61, control elevator 62 risings rises guide rail 2, afterwards make contact wheel 4 depart from resistance wire layer 1, slip slide bar 3 makes it slide into approximate location, then guide rail 2 is declined and makes contact wheel 4 contact and finely tune with resistance wire layer 1; At the same time, with hand, pin the upper end of arc conductive plate 51, the lower end of arc conductive plate 51 and resistance wire layer 1 are departed from; After reaching desired position, then unclamp arc conductive plate 51, make it under the effect of spring 52, recover the position contacting with resistance wire layer 1.
Claims (3)
1. a slide wire resistance, comprise resistance wire layer, guide rail, the slide bar that can slide along described guide rail and the contact wheel that is arranged on described slide bar lower end, described contact wheel contacts with described resistance wire layer, it is characterized in that: also comprise that two strengthen folder and two lifters, two described lifters are arranged on described guide rail and described slide wire resistance frame junction, and two described enhancing folders are arranged on respectively the both sides of described slide bar and contact with described resistance wire layer.
2. slide wire resistance according to claim 1, it is characterized in that: described enhancing folder is comprised of back-up block, arc conductive plate and spring, described back-up block is fixed on described slide bar, described arc conductive plate and described back-up block are rotatably connected, the lower end of described arc conductive plate contacts with described resistance wire layer, the upper end of described arc conductive plate is fixedly connected with the first end of described spring, and the second end of described spring is fixedly connected with described slide bar.
3. slide wire resistance according to claim 1, is characterized in that: described lifter is provided with the elevator of screwed hole and is consisted of the lifting screw that screwed hole is controlled described elevator lifting by inside, and described elevator is fixedly connected with described guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135333.0U CN203826150U (en) | 2014-03-25 | 2014-03-25 | Slide-wire resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135333.0U CN203826150U (en) | 2014-03-25 | 2014-03-25 | Slide-wire resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826150U true CN203826150U (en) | 2014-09-10 |
Family
ID=51481624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420135333.0U Expired - Fee Related CN203826150U (en) | 2014-03-25 | 2014-03-25 | Slide-wire resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958343A (en) * | 2018-07-09 | 2018-12-07 | 武汉瑞莱保能源技术有限公司 | A kind of device for simulating complex electromagnetic environment |
| CN112908598A (en) * | 2021-01-21 | 2021-06-04 | 卢东生 | Resistance equipment with pulley |
-
2014
- 2014-03-25 CN CN201420135333.0U patent/CN203826150U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958343A (en) * | 2018-07-09 | 2018-12-07 | 武汉瑞莱保能源技术有限公司 | A kind of device for simulating complex electromagnetic environment |
| CN112908598A (en) * | 2021-01-21 | 2021-06-04 | 卢东生 | Resistance equipment with pulley |
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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: 20150325 |
|
| EXPY | Termination of patent right or utility model |