CN205080807U - Formula slide rheostat is inhaled to magnetism - Google Patents
Formula slide rheostat is inhaled to magnetism Download PDFInfo
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- CN205080807U CN205080807U CN201520762741.3U CN201520762741U CN205080807U CN 205080807 U CN205080807 U CN 205080807U CN 201520762741 U CN201520762741 U CN 201520762741U CN 205080807 U CN205080807 U CN 205080807U
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- slide rheostat
- screw
- resistance tube
- permanent magnet
- conductive pole
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Abstract
The utility model relates to a formula slide rheostat is inhaled to magnetism, include a pair of insulating support, fix resistance tube, slip utmost point subassembly and terminal between two insulating support, the top parallel of resistance tube is equipped with the guide arm, it sets up on the guide arm to slide utmost point subassembly slidable ground, and the resistance tube both ends are equipped with the terminal respectively to be connected with resistance wire both ends, and guide arm no. 1 is served also to be equipped with terminal and slip extremely the subassembly is electric and is connected, the last permanent magnet that is equipped with of insulating support. The utility model discloses slide rheostat has set up the terminal that the wire of being convenient for is connected, makes things convenient for faculty and students to use, owing to still set up the permanent magnet on the insulating support, the slide rheostat model has greatly made things convenient for the observation of student to the experimentation on can directly adsorbing the blackboard, is favorable to improving teaching effects simultaneously.
Description
Technical field
The utility model relates to a kind of classroom instruction instrument, is specifically related to a kind of magnetic-type slide rheostat.
Background technology
In the teaching of middle school physical curriculum, teacher, when carrying out the electrophysics experimental demonstration of being correlated with, often can use as slide rheostat.Existing slide rheostat model generally includes the bearing at two ends, is wound with the resistance tube of the insulation tube composition of resistance wire, and the two ends of described resistance tube are separately fixed on the bearing at two ends.Due to structure, in current classroom, teacher is when carrying out the electrophysics experimental demonstration of being correlated with, generally corresponding experiment teaching aid can only be arranged and line on dais, due to the relation at visual angle, students is difficult to see specific operation process and wiring clearly, affects teaching efficiency.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is that providing a kind of is conducive to teaching demonstration, magnetic-type slide rheostat easy to connect.
For achieving the above object, the utility model provides following technical scheme: a kind of magnetic-type slide rheostat, comprise a pair insulated leg, be fixed on the resistance tube between two insulated legs and slip pole assembly, the top of described resistance tube is parallel is provided with guide rod, described slip pole assembly is slidably disposed on guide rod, resistance tube two ends are respectively equipped with binding post and are connected with resistance wire two ends, guide rod end is also provided with binding post to be connected with slip pole electrical component, it is characterized in that: described insulated leg is provided with permanent magnet, described binding post comprises conductive pole, lock-screw and set nut, conductive pole upper surface is provided with little stud, conductive pole lower surface is provided with the screw matched with lock-screw, corresponding installation site is provided with through hole, lock-screw is threaded fastening to another side with conductive pole lower surface screw through described through hole, described set nut is threaded with the little stud in the upper surface of conductive pole.
As further setting of the present utility model, the bottom surface of described insulated leg is provided with permanent magnet.
Further arrange as of the present utility model, described insulated leg is provided with the vertical sidewall paralleled with resistance tube center line, and described vertical sidewall is provided with permanent magnet.
Compared with prior art, the utility model slide rheostat is by the setting of above-mentioned conductive pole, connection wire both can screw to compress with lock-screw and connect, directly electrical connection can be formed by being clipped on the conductive pole that is exposed at outside upper surface of base plate for the wire being provided with clip, very convenient and connect reliable, Faculty and Students are facilitated to use, simultaneously due to insulated leg being also provided with permanent magnet, slide rheostat model can directly adsorb on blackboard, be very easy to the observation of student to experimentation, be conducive to improving teaching efficiency.
Below in conjunction with drawings and Examples, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment 1 structural representation;
Fig. 2 is the utility model specific embodiment 2 structural representation;
Fig. 3 is the utility model binding post specific embodiment decomposition texture schematic diagram.
Embodiment
As shown in Figure 1, magnetic-type slide rheostat comprises a pair insulated leg 1, be fixed on resistance tube 2 between two insulated legs 1 and slip pole assembly 3, resistance wire two ends are fastened on insulation tube by the circumferential band 4 that thin bonding jumper is made forms resistance tube 2, insulated leg 1 selects plastics injection molded, the preferred l-shaped in cross section, is conducive to stablizing.The top of described resistance tube 2 is parallel is provided with guide rod 5, guide rod 5 is made up of metal material, as copper material or stainless steel, guide rod 5 two ends are fixed on insulated leg 1 equally, described slip pole assembly 3 is slidably disposed on guide rod 5, the Metal Contact sheet 302 that described slip pole assembly 3 comprises insulation slider 301 and is fixed on insulation slider 301, described Metal Contact sheet 302 contacts with guide rod 5 and resistance tube 2, resistance tube 2 two ends are respectively equipped with binding post 6 and are connected with resistance wire two ends, guide rod 5 one end is also provided with binding post 6 to be electrically connected with slip pole assembly 3, in order to be adsorbed on blackboard, described insulated leg 1 is provided with permanent magnet 7, described permanent magnet 7 can be arranged on the bottom surface of insulated leg 1.As shown in Figure 3, described binding post 6 comprises conductive pole 601, lock-screw 602 and set nut 603, conductive pole 601 upper surface is provided with little stud, conductive pole 601 lower surface is provided with the screw matched with lock-screw 602, corresponding installation site is provided with through hole, lock-screw 602 is threaded fastening to another side with conductive pole 601 lower surface screw through described through hole, and described set nut 603 is threaded with the little stud in the upper surface of conductive pole 601.In this specific embodiment, resistance tube 2 two ends are provided with the circumferential band 4 that thin bonding jumper is made, and circumferential band 4 end is provided with described through hole, and described lock-screw 602 is threaded fastening to circumferential band 4 end another side with conductive pole 601 lower surface screw through described through hole.
As shown in Figure 2, the preferred l-shaped of xsect of described insulated leg 1, described permanent magnet 7 is arranged on the vertical sidewall that insulated leg 1 parallels with resistance tube 2 center line, can inhale on blackboard, convenient student's clear view during use with upright state.
Claims (3)
1. a magnetic-type slide rheostat, comprise a pair insulated leg, be fixed on the resistance tube between two insulated legs and slip pole assembly, the top of described resistance tube is parallel is provided with guide rod, described slip pole assembly is slidably disposed on guide rod, resistance tube two ends are respectively equipped with binding post and are connected with resistance wire two ends, guide rod end is also provided with binding post to be connected with slip pole electrical component, it is characterized in that: described insulated leg is provided with permanent magnet, described binding post comprises conductive pole, lock-screw and set nut, conductive pole upper surface is provided with little stud, conductive pole lower surface is provided with the screw matched with lock-screw, corresponding installation site is provided with through hole, lock-screw is threaded fastening to another side with conductive pole lower surface screw through described through hole, described set nut is threaded with the little stud in the upper surface of conductive pole.
2. magnetic-type slide rheostat according to claim 1, is characterized in that: the bottom surface of described insulated leg is provided with permanent magnet.
3. magnetic-type slide rheostat according to claim 1, is characterized in that: described insulated leg is provided with the vertical sidewall paralleled with resistance tube center line, and described vertical sidewall is provided with permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762741.3U CN205080807U (en) | 2015-09-29 | 2015-09-29 | Formula slide rheostat is inhaled to magnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762741.3U CN205080807U (en) | 2015-09-29 | 2015-09-29 | Formula slide rheostat is inhaled to magnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205080807U true CN205080807U (en) | 2016-03-09 |
Family
ID=55433198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520762741.3U Active CN205080807U (en) | 2015-09-29 | 2015-09-29 | Formula slide rheostat is inhaled to magnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205080807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627303A (en) * | 2020-06-20 | 2020-09-04 | 江西和兴教育装备有限公司 | Visualized teaching equipment for current magnitude |
-
2015
- 2015-09-29 CN CN201520762741.3U patent/CN205080807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627303A (en) * | 2020-06-20 | 2020-09-04 | 江西和兴教育装备有限公司 | Visualized teaching equipment for current magnitude |
| CN111627303B (en) * | 2020-06-20 | 2021-11-05 | 江西和兴教育装备有限公司 | Visualized teaching equipment for current magnitude |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |