CN203982629U - A kind of spring assembly for experimental teaching - Google Patents
A kind of spring assembly for experimental teaching Download PDFInfo
- Publication number
- CN203982629U CN203982629U CN201420409487.4U CN201420409487U CN203982629U CN 203982629 U CN203982629 U CN 203982629U CN 201420409487 U CN201420409487 U CN 201420409487U CN 203982629 U CN203982629 U CN 203982629U
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- China
- Prior art keywords
- spring
- eccentric wheel
- knife switch
- connecting link
- driver element
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Abstract
The utility model is announced a kind of spring assembly for experimental teaching, comprise spring, the scale of measuring spring deformation, knife switch, power supply, for the wire and the driver element that connect, the folding of driver element control knife switch, preferably, this driver element is eccentric wheel assembly, spring is preferably used spring steel, positive source connects knife switch one end, the other end of knife switch corresponding power is connected to one end of spring, the other end of the corresponding knife switch of spring is connected to power cathode, the spacing collar of eccentric wheel assembly is set on plug-in strip, be used for the on off state of gauge tap, circuit is in continuous turn-on and turn-off process, the continuous up-down vibration of spring, spring limit is provided with scale, we can well measuring spring deformation length.The utility model can well allow observation of students electricity magnetisation principle and measuring spring performance.
Description
Technical field
The utility model relates to physical and mechanical experiment field, especially relates to a kind of in the spring assembly for experimental teaching.
Background technology
Electricity magnetisation principle: if a straight plain conductor passes through electric current, the space around wire will produce circular magnetic field so.The electric current flowing through in wire is larger, and the magnetic field of generation is stronger.Magnetic field is circular, around wire.The mode of our observation experiment phenomenon was all that experimental phenomena is obvious not by put one piece of compass on the limit of electrified wire in the past, also directly perceived not, did not reach desirable teaching purpose.
Spring formula F=KX, wherein K is elasticity coefficient, X is stretching displacement, F is value of thrust, in existing physical and mechanical experiment, the experiment of spring is mainly divided into confirmatory and two kinds of modes of testability: test experiments is to the given stressed size of spring and stretching displacement, obtains spring constant K by straight line draw calculation; Verification mode is known elasticity COEFFICIENT K, observes stretching displacement X and stressed variation F, whether meets F=KX formula.No matter be replication experiment or testability experiment, the use experiment method of prior art all not obviously shows and realizes experimental phenomena, and observation and operation are all convenient not.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide one can well, allow student understand and observation experiment phenomenon more intuitively, and record experimental data, in order to verify scientific theory, calculate the spring assembly for experimental teaching of unknown quantity.
For achieving the above object, the utility model provides following technical scheme, a kind of spring assembly for experimental teaching, comprise spring assembly, circuit unit and driver element, described spring assembly comprises the scale of spring and measuring spring deformation, circuit unit comprises knife switch, power supply and wire for being connected, the folding of driver element control knife switch, and power supply, knife switch and spring are electrically connected successively by wire.
By adopting technique scheme, a kind of spring assembly for experimental teaching, comprise spring assembly, circuit and driver element, spring assembly comprises the scale of spring and measuring spring deformation, circuit comprises knife switch, power supply and wire for being connected, the folding of driver element control knife switch, positive source connects knife switch one end, the other end of knife switch corresponding power is connected to one end of spring, the other end of the corresponding knife switch of spring is connected to power cathode, between spring single turn, do not contact or insulate, when spring energising, be equivalent to an energization solenoid, every circle spring is equivalent to ring current, in every circle spring, direction of current is identical, between two circle springs, form different name magnetic field, magnetic induction line opposite direction, known according to attracting each other between same direction current, every circle spring all attracts each other with adjacent springs, so spring entirety can be shunk, scale can well record spring and produce the length of deformation because being subject to magnetic force, in the time that knife switch disconnects, spring meeting is extended because of self elastic force, in the continuous process that opens and closes combination switch, spring can continuous up-down vibration.The utility model is for experimental teaching, can well, allow student understand and observation experiment phenomenon more intuitively, and records experimental data, in order to verify scientific theory, calculates unknown quantity.
The utility model is further set to, driver element is eccentric wheel assembly, eccentric wheel assembly comprises drive motor, eccentric wheel, spacing collar, connecting link and for limiting the fixed support of connecting link position, eccentric wheel is connected on drive motor, spacing collar is fixedly connected with connecting link, connecting link and eccentric wheel are conflicted mutually, connecting link and eccentric wheel interlock, and spacing collar and knife switch are connected.
By adopting technique scheme, driver element is eccentric wheel assembly, eccentric wheel assembly comprises drive motor, eccentric wheel, spacing collar, connecting link and for limiting the fixed support of connecting link position, eccentric wheel is connected on drive motor, spacing collar is fixedly connected with connecting link, connecting link and eccentric wheel are conflicted mutually, connecting link and eccentric wheel interlock, fixed support only can be offset along generation in connecting link direction connecting link, rotarily drive spacing collar by eccentric wheel lower mobile in vertical direction, spacing collar is by connecting link and the driven motion of eccentric wheel, in eccentric wheel rotary course, because eccentric wheel outside surface is apart from the variation of eccentric wheel center position length, make knife switch realize closed and disconnected.Realize the closure of knife switch, eccentric wheel simplicity of design, convenient, also can well control circuit.
The utility model is further set to, and eccentric wheel outside surface has magnetic, and connecting link is by making with the metal material that Magnetic Phase coordinates.
By adopting technique scheme, eccentric wheel outside surface has magnetic, and connecting link is by making with the metal material that Magnetic Phase coordinates, and can make like this connecting link be fitted on eccentric outside surface, in the time that eccentric wheel rotates, make spacing collar produce displacement by driven driving.
The utility model is further set to, and described spring is made up of conducting metal material.
By adopting technique scheme, this spring is connected in circuit, realizes the flexible of spring by electric magnetisation principle, and spring must conduct electricity, and spring is made up of conducting metal material.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model for the spring assembly of experimental teaching;
Fig. 2 is the schematic diagram of the utility model spring assembly;
Fig. 3 is the schematic diagram of the utility model driver element.
Accompanying drawing mark: 1, power supply; 2, knife switch; 21, eccentric wheel; 22, spacing collar; 23, fixed support; 24, connecting link; 3, wire; 4, spring; 5, scale.
Embodiment
Further illustrate below with reference to Fig. 1 to 3 pair of the utility model.
A kind of spring assembly for experimental teaching, comprise spring assembly, circuit and driver element, described spring assembly comprises the scale 5 of spring 4 and measuring spring deformation, circuit comprises knife switch 2, power supply 1 and wire 3, the folding of driver element control knife switch 2, anodal knife switch 2 one end that connect of power supply 1, the other end of knife switch 2 corresponding power 1 is connected to one end of spring 4, the other end of the corresponding knife switch 2 of spring 4 is connected to power supply 1 negative pole, and spring 4 is made up of conducting metal material.
Ampere's law, is also right-hand screw rule, is to represent that electric current and electric current excite the rule of relation between the magnetic induction line direction in magnetic field.Ampere's law (Ampere's law one) in electromotion straight wire: hold electromotion straight wire with the right hand, allow thumb point to sense of current, so the sensing of four fingers be exactly magnetic induction line around direction; Ampere's law (Ampere's law two) in energization solenoid: hold energization solenoid with the right hand, make four fingers bending consistent with direction of current, that one end of thumb indication is the N utmost point of energization solenoid so.The phenomenon of finding according to ampere: between two wires when conducting direction same current, the magnetic field interaction between two wires and two wires are attracted each other, on the contrary wire repels mutually.
Between spring 4 single turns, do not contact or insulate, spring 4 is equivalent to an energization solenoid while energising, every circle spring 4 is equivalent to ring current, in every circle spring 4, direction of current is identical, two 4, circle springs form different name magnetic field, magnetic induction line opposite direction, known according to attracting each other between same direction current, every circle spring 4 all attracts each other with adjacent springs 4, so spring 4 entirety can be shunk, scale 5 can well record spring 4 and produce the length of deformation because being subject to magnetic force, in the time that knife switch 2 disconnects, spring 4 meetings are extended because of self elastic force, in the continuous process that opens and closes combination switch, spring 4 can continuous up-down vibration.The utility model is for experimental teaching, can well, allow student understand and observation experiment phenomenon more intuitively, and records experimental data, in order to verify scientific theory, calculates unknown quantity.
Electricity consumption of the present utility model does not need to consider the selection problem of power supply 1, and no matter indirect current or direct current comes to the same thing all can make spring 4 shrink that (when indirect current, in every circle spring 4, direction of current is still identical.）
As a kind of embodiment of the present utility model, driver element is eccentric wheel assembly, eccentric wheel assembly comprises drive motor, eccentric wheel 21, spacing collar 22, connecting link 24 and for the fixed support 23 of fixed connecting rod 24 positions, fixed support 23 is used for limiting eccentric wheel 21 and connecting link 24 positions, spacing collar 22 is fixedly connected with connecting link 24, form a linkage, motion together, connecting link 24 links with eccentric wheel 21, the concrete magnetic of eccentric wheel 21 outside surface, make connecting link 24 eccentric wheel 21 of always fitting, in eccentric wheel 21 rotary courses, connecting link 24 moves up and down, eccentric wheel 21 is connected on power supply 1 by drive motor (not shown), fixed support 23 makes 24 meetings of connecting link along producing skew in connecting link direction, rotarily drive spacing collar 22 by eccentric wheel 21 lower mobile in vertical direction, knife switch 2 is placed in spacing collar 22, eccentric wheel 21 rotates by connecting link and drives spacing collar 22, realize the closed and disconnected of knife switch 2.When the outside surface of eccentric wheel 21 apart from eccentric wheel 21 centers weakness and connecting link 24 when inconsistent, spacing collar 22 upper limb touching Rnife switchs 2, because eccentric wheel 21 outside surfaces have magnetic, spacing collar 22 moves vertically downward with eccentric wheel 21, thereby make knife switch 2 closures, circuit turn-on, spring 4 is subject to 4 magnetic force of two circle springs and shrinks; When the outside surface of eccentric wheel 21 apart from eccentric wheel 21 centers strong point and connecting link 24 when inconsistent, spacing collar 22 lower edge conflict knife switches 2, spacing collar promotes knife switch 2, and knife switch 2 is disconnected, and circuit turn-offs, spring 4 can extend because of the elastic force of self, the driver element simplicity of design of eccentric wheel 21, convenient, and also frequency is identical, observation experiment phenomenon more clearly, also can well control circuit.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. the spring assembly for experimental teaching, it is characterized in that: comprise spring assembly, circuit unit and driver element, described spring assembly comprises the scale of spring and measuring spring deformation, circuit unit comprises knife switch, power supply and wire for being connected, the folding of driver element control knife switch, power supply, knife switch and spring are electrically connected successively by wire.
2. the spring assembly for experimental teaching according to claim 1, it is characterized in that: described driver element is eccentric wheel assembly, eccentric wheel assembly comprises drive motor, eccentric wheel, spacing collar, connecting link and the fixed support for fixed connecting rod position, eccentric wheel is driven by drive motor, spacing collar is fixedly connected with connecting link, connecting link and eccentric wheel interlock, spacing collar and knife switch are connected.
3. the spring assembly for experimental teaching according to claim 2, is characterized in that: described eccentric wheel outside surface has magnetic, and connecting link is by making with the metal material that Magnetic Phase coordinates.
4. according to the spring assembly for experimental teaching described in claim 1 or 2 or 3, it is characterized in that: described spring is made up of conducting metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409487.4U CN203982629U (en) | 2014-07-23 | 2014-07-23 | A kind of spring assembly for experimental teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409487.4U CN203982629U (en) | 2014-07-23 | 2014-07-23 | A kind of spring assembly for experimental teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982629U true CN203982629U (en) | 2014-12-03 |
Family
ID=51980056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409487.4U Expired - Fee Related CN203982629U (en) | 2014-07-23 | 2014-07-23 | A kind of spring assembly for experimental teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203982629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083360A (en) * | 2018-08-23 | 2018-12-25 | 夏静 | A kind of new-type antiskid floor tile |
-
2014
- 2014-07-23 CN CN201420409487.4U patent/CN203982629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083360A (en) * | 2018-08-23 | 2018-12-25 | 夏静 | A kind of new-type antiskid floor tile |
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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: 20141203 Termination date: 20190723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |