CN201903851U - Electromagnetic erasing device - Google Patents
Electromagnetic erasing device Download PDFInfo
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- CN201903851U CN201903851U CN2010206448095U CN201020644809U CN201903851U CN 201903851 U CN201903851 U CN 201903851U CN 2010206448095 U CN2010206448095 U CN 2010206448095U CN 201020644809 U CN201020644809 U CN 201020644809U CN 201903851 U CN201903851 U CN 201903851U
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Abstract
The utility model relates to an electromagnetic erasing device, in particular to an electromagnetic erasing device with a plurality of erasing ends. The electromagnetic erasing device comprises a body, a first erasing end and a second erasing end, wherein the first erasing end is arranged at one end of the body, and the second erasing end is arranged at the other end of the body. By adopting a tact switch to control capacitors to resonate with a resonant circuit, resonant frequency of the resonant circuit can be obviously changed, the problem that the resonant frequency of the resonant circuit cannot be changed obviously by a conventional electromagnetic erasing device under low pressure can be avoided, and supporting components, magnetic components, annular pads and elastic components and the like of the conventional electromagnetic erasing device are omitted in the electromagnetic erasing device, and accordingly, the structure and the assembling process of the electromagnetic erasing device are simplified.
Description
Technical field
The utility model relates to a kind of electromagnetic type erasing apparatus, particularly relates to a kind of electromagnetic type erasing apparatus with a plurality of cleaning and polishing ends.
Background technology
The electromagnetic type wiping arrangement (or electromagnetic type erasing rubber apparatus) of general traditional no battery, as U.S. Pat 5,576, the 502 electromagnetic type erasing rubber apparatus structures that disclosed, usually directly be made in the tail end part of time writer, and form a complete inseparable integral body with time writer.With reference to Fig. 1, it is the structural representation of the electromagnetic type erasing rubber apparatus 20 of general traditional no battery, same, traditional electrical magnetic-type erasing rubber apparatus 20 also is the tail end that directly is made in time writer 10, and become an inseparable individuality with time writer 10, for other in order to a petiolarea of writing, usually it is referred to as the cleaning and polishing end of time writer 10 with time writer.Traditional electrical magnetic-type erasing rubber apparatus 20 is made up of a cylindrical shaft of a writing brush shell 21, cheese erasing rubber lid 22, magnetic element 23, flexible member 24, annular gasket 25, the coil part 26 that contains powdered-iron core and support component 27 usually.Wherein, magnetic element 23, flexible member 24, annular gasket 25, coil part 26 and support component 27 all are arranged at by cylindrical shaft of a writing brush shell 21 and cheese erasing rubber and cover in 22 spaces of being formed, and support all elements in it with support component 27, and flexible member 24 and annular gasket 25 are arranged between magnetic element 23 and the coil part 26 as separating.The principle of work of traditional electrical magnetic-type erasing rubber apparatus 20 is to push the electromagnetic type erasing rubber apparatus 20 of time writer 10 tail ends by the user, and compression elastic element 24, make magnetic element 23 close to coil part 26, and then change its unit permeance, cause the resonant circuit of time writer 10 inside change its resonant frequency and its electromagnetic riveting machine signal frequency of launching or reflecting, make electromagnetic type digiboard or handwriting pad with its collocation, detect this electromagnetic riveting machine signal frequency of representing erasing rubber apparatus, use and can learn that promptly time writer 10 is to be in the wiping state, and the function that can use time writer 10 tail ends (or electromagnetic type erasing rubber apparatus 20) on electromagnetic type digiboard or handwriting pad, to carry out wiping.
Yet this traditional electrical magnetic-type erasing rubber apparatus 20 has following shortcoming:
(1) complex structure: because traditional electrical magnetic-type erasing rubber apparatus 20 is the tail ends that directly are made in time writer 10, therefore support the whole inner structure except the exclusive support component 27 of needs, also need flexible member 24 for the distance between compression and recovery magnetic element 23 and the coil part 26, and annular gasket 25 is stablized contacting between flexible member 24 and the coil part 26, so traditional electrical magnetic-type erasing rubber apparatus 20 needs many elements to constitute, therefore, not only structurally complicated, and its assembling procedure is also comparatively complicated and complicated, and needs higher material cost and human cost.
(2) frequency change is not obvious: because traditional electrical magnetic-type erasing rubber apparatus 20 is to be arranged at flexible member 24 between magnetic element 23 and the coil part 26 by compression, and change distance between the two, cause the variation of magnetic coefficient, cause the resonant frequency of its internal resonance circuit to change, and then make the signal frequency shift that time writer 10 tail ends (or electromagnetic type erasing rubber apparatus 20) are sent, make and to judge that with the electromagnetic type digiboard or the handwriting pad of its collocation magnetic pen 10 is to be in the wiping state, but when the user gently presses traditional electrical magnetic-type erasing rubber apparatus 20, often because flexible member 24 decrements are little, cause magnetic element 23 displacements not many, be that variable in distance between magnetic element 23 and the coil part 26 is little, cause the variation of resonant frequency of internal resonance circuit little, thereby make the electromagnetic type digiboard or the handwriting pad of collocation can't judge clearly whether time writer 10 tail ends (or electromagnetic type erasing rubber apparatus 20) are in the wiping state, therefore, the electromagnetic type digiboard of collocation or handwriting pad produce erroneous judgement easily, and accuracy that influence is used and the inconvenience that causes in the use.
(3) alternative costs height: because traditional electrical magnetic-type erasing rubber apparatus 20 is the tail ends that directly are made in time writer 10, and with time writer be one, therefore, because of use continually electromagnetic type erasing rubber apparatus 20 (being the cleaning and polishing end of time writer 10) cause its produce wearing and tearing, consume or even problems such as fault in, and can't only change cleaning and polishing end (electromagnetic type erasing rubber apparatus 20), but need buy the time writer 10 of a whole Zhi Xin again, cause higher use cost of needs and alternative costs.
This shows that above-mentioned existing electromagnetic type erasing rubber apparatus obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of electromagnetic type erasing apparatus of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
Fundamental purpose of the present utility model is, overcome the defective that existing electromagnetic type erasing rubber apparatus exists, and provide a kind of electromagnetic type erasing apparatus of new structure, technical matters to be solved is to make its structure and assembling procedure is simple, frequency change is obvious and alternative costs are low, is very suitable for practicality.
Another purpose of the present utility model is, a kind of electromagnetic type erasing apparatus of new structure is provided, and technical matters to be solved is to make it possess a plurality of cleaning and polishing ends with different big or small wiped area simultaneously, thereby is suitable for practicality more.
The purpose of this utility model and to solve its technical matters be to adopt following technical scheme to realize.According to a kind of electromagnetic type erasing apparatus that the utility model proposes, comprise: one is available for users to grip the main body of use; One is subjected to the compressing meeting towards first cleaning and polishing end that this body interior direction moves, and is arranged at an end of this main body; And one be subjected to the compressing meeting towards second cleaning and polishing end that this body interior direction moves, and is arranged at the other end of this main body, and wherein, this first cleaning and polishing end is thicker than second cleaning and polishing end.
The purpose of this utility model and solve its technical matters and can also be further achieved by the following technical measures.
Aforesaid electromagnetic type erasing apparatus wherein is manufactured with on this main body and is easy to grip also anti-skidding annular lines.
Aforesaid electromagnetic type erasing apparatus, wherein this main body is the right cylinder of a hollow.
Aforesaid electromagnetic type erasing apparatus, wherein this main body comprises: one is wound in the coil of a powdered-iron core, and this coil is arranged at this body interior; One forms first electric capacity of a resonance circuit with this coil, and this first electric capacity is arranged at this body interior; One second electric capacity, this second electric capacity is in parallel with this coil and this first electric capacity, and is arranged at this body interior; One first little switch that touches, this first little switch that touches first is wiped end and is arranged at this body interior corresponding to this, and this first littlely touches switch and the electric connection of this second electric capacity, in order to control the resonance that this second electric capacity participates in this resonant circuit; One the 3rd electric capacity, the 3rd electric capacity is in parallel with this coil and this first electric capacity, and is arranged at this body interior; And one second little switch that touches, this second little switch that touches second is wiped end and is arranged at this body interior corresponding to this, and this second littlely touches switch and the electric connection of the 3rd electric capacity, in order to control the resonance that the 3rd electric capacity participates in this resonant circuit.
Aforesaid electromagnetic type erasing apparatus, wherein this first cleaning and polishing end is provided with one in order to contact and to open this first little first contact element that touches switch when this first cleaning and polishing end pressurized retreats.
Aforesaid electromagnetic type erasing apparatus, wherein this first contact element is a projection, projection or thimble.
Aforesaid electromagnetic type erasing apparatus, wherein this second cleaning and polishing end is provided with one in order to contact and to open this second little second contact element that touches switch when this second cleaning and polishing end pressurized retreats.
Aforesaid electromagnetic type erasing apparatus, wherein this second contact element is a projection, projection or thimble.
Aforesaid electromagnetic type erasing apparatus, wherein this electromagnetic type erasing apparatus have one can insert one have tail end hole time writer in conjunction with latch.
Aforesaid electromagnetic type erasing apparatus should be this second cleaning and polishing end in conjunction with latch wherein.
Aforesaid electromagnetic type erasing apparatus, wherein this electromagnetic type erasing apparatus has a combined hole that can partly insert for the tail end of a time writer or tail end projection.
Aforesaid electromagnetic type erasing apparatus, wherein this combined hole is arranged at this first cleaning and polishing end.
The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, in order to achieve the above object, it is a kind of for solving the above problems and reaching above-mentioned purpose that the utility model provides, the utility model proposes a kind of novel electromagnetic type erasing apparatus, this electromagnetic type erasing apparatus comprises first cleaning and polishing end that a main body, that is available for users to grip use is arranged at an end of main body, and second cleaning and polishing end that is arranged at the main body other end, wherein, first cleaning and polishing end is comparatively thick compared to second cleaning and polishing end, and first cleaning and polishing end and second cleaning and polishing end are subjected to compressing and all can move towards the body interior direction.In main body, be provided with the resonant circuit that a coil and one first electric capacity are formed, in addition, also be provided with first of corresponding first cleaning and polishing end in the main body and littlely touch the switch and second electric capacity, and second little switch and the 3rd electric capacity of touching that is provided with corresponding second cleaning and polishing end.
This electromagnetic type erasing apparatus littlely touches switch and second little switch that touches is controlled the resonance that second electric capacity and the 3rd electric capacity participate in resonant circuit respectively by first, and the resonant frequency of guaranteeing resonant circuit can change significantly, and then the change electromagnetic riveting machine signal frequency that resonant circuit sent or reflected, and define a bigger wiping scope of representing first cleaning and polishing end and a less wiping scope of representing second cleaning and polishing end respectively, to carry out the wiping of different range, and do not need support component in the traditional electrical magnetic-type erasing apparatus, magnetic element, element such as annular gasket and flexible member makes it have better simply structure and assembling procedure.In addition, the electromagnetic type erasing apparatus is independent used device thus, therefore, when problems such as wearing and tearing, consumption or even fault are arranged, only need change a new electromagnetic type erasing apparatus promptly can continue to use, and do not need to buy again the time writer of a whole Zhi Xin, so can will hang down alternative costs.
By technique scheme, the utility model electromagnetic type erasing apparatus has following advantage and beneficial effect at least:
Effect of the present utility model is for providing an electromagnetic type erasing apparatus, it goes control capacitance to add in parallel and changes the mode of the resonant frequency of resonant circuit by little switch that touches is set, replace the mode that changes the resonant frequency of resonant circuit in the traditional electrical magnetic-type erasing apparatus with two magnetisable materials such as magnetic element and coil part, and the frequency of guaranteeing resonant circuit can change significantly, and therefore can omit the support component in the traditional electrical magnetic-type erasing apparatus, magnetic element, element such as annular gasket and flexible member, make this electromagnetic type erasing apparatus have better simply structure and assembling procedure, secondly, because this electromagnetic type erasing apparatus is independent of outside the time writer, and directly be not made in the tail end of time writer and form an inseparable integral body with time writer, so comparatively convenient on replacing, and have lower alternative costs.In addition, these electromagnetic type erasing apparatus two ends be provided with being defined as respectively of the digiboard (or handwriting pad) of being arranged in pairs or groups represent one in a big way first cleaning and polishing end of wiped area represent second cleaning and polishing end of wiped area more among a small circle with being defined as, so can utilize two (or two ends) of same electromagnetic type erasing apparatus to carry out the wiping of different range.
In sum, a kind of electromagnetic type erasing apparatus of the utility model is particularly relevant for a kind of electromagnetic type erasing apparatus with a plurality of cleaning and polishing ends.This electromagnetic type erasing apparatus comprises second cleaning and polishing end that first cleaning and polishing end and that a main body, is arranged at main body one end is arranged at the main body other end.This electromagnetic type erasing apparatus adopts little switch that touches to come control capacitance to participate in the resonance of resonant circuit, and can change the resonant frequency of resonant circuit significantly, avoid traditional electrical magnetic-type erasing apparatus can't change the problem of the resonant frequency of resonant circuit significantly because of applied pressure kicks the beam, and make electromagnetic type erasing apparatus of the present utility model not need the elements such as support component, magnetic element, annular gasket and flexible member in the traditional electrical magnetic-type erasing apparatus, and simplify the structure and the assembling procedure of electromagnetic type erasing apparatus.The utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 shows the vertical cross section of a traditional electromagnetic type erasing rubber apparatus.
Fig. 2 A, Fig. 2 B and Fig. 2 C show schematic appearance, sectional view and the internal circuit synoptic diagram of the electromagnetic type erasing apparatus of a utility model one preferred embodiment respectively.
Fig. 3 A and Fig. 3 B show the schematic appearance of different angles of the time writer of the electromagnetic type erasing apparatus of a utility model one preferred embodiment and collocation respectively.
Fig. 4 A and Fig. 4 B show the schematic appearance of different angles of the time writer of the electromagnetic type erasing apparatus of another preferred embodiment of the utility model and collocation respectively.
10: time writer 20: traditional electrical magnetic-type erasing rubber apparatus
21: cylindrical shaft of a writing brush shell 22: cheese erasing rubber lid
23: magnetic element 24: flexible member
25: annular gasket 26: coil part
27: support component 100,100 ': the electromagnetic type erasing apparatus
102: main body 104: the ring-type lines
Cleaning and polishing end 107 in 106: the first: combined hole
Cleaning and polishing end 110 in 108: the second: coil
112: the first little 114: the second little switches that touch of switch that touch
118: the second contact elements of 116: the first contact elements
122: the second electric capacity of 120: the first electric capacity
202: in conjunction with pin hole 300: time writer
302: projection partly
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of electromagnetic type erasing apparatus, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
Fig. 2 A, Fig. 2 B and Fig. 2 C show schematic appearance, sectional view and the internal electrical of the electromagnetic type erasing apparatus 100 of a utility model one preferred embodiment synoptic diagram of crying respectively.Please be simultaneously with reference to Fig. 2 A, Fig. 2 B and Fig. 2 C, electromagnetic type erasing apparatus 100 comprises a main body 102, that is available for users to grip use and is subjected to first cleaning and polishing end 106 and that the compressing meeting moves towards main body 102 internal direction and is subjected to second cleaning and polishing end 108 that the compressing meeting is moved towards main body 102 internal direction.Wherein, first cleaning and polishing end 106 is arranged at an end of main body 102, second cleaning and polishing end 108 then is arranged at the other end of main body 102, and first cleaning and polishing end 106 is comparatively thick or have bigger volume or diameter compared to second cleaning and polishing end 108, make the user can distinguish easily that the first thicker cleaning and polishing end 106 represents the bigger wiped area of a scope, and the second more tiny cleaning and polishing end 108 is represented the less wiped area of a scope.On main body 102, be manufactured with annular lines 104, with using electromagnetic type erasing apparatus 100 and have anti-skidding effect so that the user is easy to grip, but, but can take any lines that can help the user to grip and have antiskid function not as limit.
First cleaning and polishing end 106 is provided with first contact element 116 that extends to main body 102 inside, for example projection, projection or thimble.First contact element 116 corresponding first is little to be touched switch 112 and is provided with, make and win cleaning and polishing end 106 when suffering oppression, driving first contact element 116 retreats, promptly to main body 102 inner moving, make the contact element 116 of winning push up first little switch 112 that touches, be communicated with second electric capacity 122 and the resonant circuit and open first little switch 112 that touches, make second electric capacity 122 participate in the resonance of resonant circuit and change its resonant frequency.Second cleaning and polishing end 108 is provided with second contact element 118 that extends to main body 102 inside, for example projection, projection or thimble.Second contact element 118 corresponding second is little to be touched switch 114 and is provided with, make second cleaning and polishing end 108 when suffering oppression, driving second contact element 118 retreats, promptly to main body 102 inner moving, make second contact element 118 push up second little switch 114 that touches, be communicated with the 3rd electric capacity 124 and resonant circuit and open second little switch 114 that touches, make the 3rd electric capacity 124 participate in the resonance of resonant circuit and change its resonant frequency.
When first cleaning and polishing end 106 and second cleaning and polishing end 108 all are not subjected to oppressing, the resonant circuit that the coil 110 and first electric capacity 120 are formed in the electromagnetic type erasing apparatus 100 can keep its original resonant frequency, and with the electromagnetic riveting machine signal resonance of digiboard emission, and emission or reflect an electromagnetic riveting machine signal that has with original resonant frequency same frequency and position to digiboard, and number of notifications letter stencil position thereon be electromagnetic type erasing apparatus 100, but not time writer.
When first cleaning and polishing end 106 is subjected to oppressing, first cleaning and polishing end 106 drives first contact element 116 and retreats, littlely touch switch 112 and open first little switch 112 that touches and push up first, make second electric capacity 122 and resonance circuit communication, and the resonance of participation resonant circuit, the resonant frequency of resonant circuit is changed to first resonant frequency by original resonant frequency, and emission or reflect and have with the electromagnetic riveting machine signal of the first resonant frequency same frequency and give digiboard.This has and is defined as representative with the electromagnetic riveting machine signal of the first resonant frequency same frequency by digiboard and uses first cleaning and polishing end 106 to carry out wiping and represent in a big way a wiped area.The track that digiboard then moves on digiboard according to first cleaning and polishing end 106, and in the defined large-scale wiping in the enterprising Xingqi of digiboard.
When second cleaning and polishing end 108 is subjected to oppressing, second cleaning and polishing end 108 drives second contact element 118 and retreats, littlely touch switch 114 and open second little switch 114 that touches and push up second, make the 3rd electric capacity 124 and resonance circuit communication, and the resonance of participation resonant circuit, the resonant frequency of resonant circuit is changed to second resonant frequency by original resonant frequency, and emission or reflect and have with the electromagnetic riveting machine signal of the second resonant frequency same frequency and give digiboard.This has and is defined as representative with the electromagnetic riveting machine signal of the second resonant frequency same frequency by digiboard and uses second cleaning and polishing end 108 to carry out wiping and represent more among a small circle a wiped area.The track that digiboard then moves on digiboard according to second cleaning and polishing end 108, and in the defined wiping among a small circle in the enterprising Xingqi of digiboard.Wherein, first resonant frequency has different frequency values with second resonant frequency, first resonant frequency is defined as by digiboard and represents first cleaning and polishing end 106 and a wiped area in a big way, and second resonant frequency then is defined as by digiboard and represents second cleaning and polishing end 108 and a wiped area more among a small circle.
Therefore, littlely touch switch 112 or second little unlatching of touching switch 114 by first, directly the resonant frequency of resonant circuit is done a change significantly, and the variation that makes resonant frequency with fully and the suffered pressure size of electromagnetic type erasing apparatus take off fully and collude, so unlike traditional electrical magnetic-type erasing apparatus because of change the mode of the resonant frequency of resonant circuit with two magnetisable materials such as magnetic element and coil part, and being limited by the size of the suffered pressure of erasing apparatus, electromagnetic type erasing apparatus 100 of the present utility model can not take place to produce the problem that the resonant frequency that can't cause resonant circuit changes because of light piezoelectricity magnetic-type erasing apparatus only.In addition, because electromagnetic type erasing apparatus 100 adopts first little switch 112 or second little switch 114 that touches of touching, so do not need in the traditional electrical magnetic-type erasing apparatus elements such as support component, magnetic element, annular gasket and flexible member, and it can be omitted, make this electromagnetic type erasing apparatus have better simply structure and assembling procedure, so can save the cost of material and assembling.
Whereby, the two ends of electromagnetic type erasing apparatus 100 (first cleaning and polishing end 106 and second cleaning and polishing end 108) may be used to carry out on the digiboard wiping, and it is defined as having the wiped area of different range respectively, and the user is provided different wiping patterns, make electromagnetic type erasing apparatus 100 in the use compared to time writer be the traditional electrical magnetic-type erasing apparatus of one more convenient with flexibly.
Though electromagnetic type erasing apparatus of the present utility model is one independently individual, it is outer and use separately that it can be independent of a time writer, and it also can be combined into one with the time writer of a collocation and be easy to carry and take in, and is not easy to lose.With reference to Fig. 3 A and Fig. 3 B, it shows the electromagnetic type erasing apparatus 100 of a utility model one preferred embodiment and the schematic appearance of the different angles of the time writer 200 of collocation respectively, wherein, Fig. 3 A and electromagnetic type erasing apparatus 100 shown in Fig. 3 B and the electromagnetic type erasing apparatus 100 shown in Fig. 2 A, Fig. 2 B and Fig. 2 C have identical outward appearance, inner structure and and internal circuit, so do not repeat them here.Time writer 200 is one partly not make or be provided with the time writer of electromagnetic type erasing apparatus or electromagnetic type erasing rubber apparatus at tail end, its with have known time writer the same can being used for now and write on digiboard or the handwriting pad.The tail end of this time writer 200 partly be provided with a hole as one in conjunction with pin hole 202, electromagnetic type erasing apparatus 100 can its more tiny second cleaning and polishing end 108 as one in conjunction with latch, make electromagnetic type erasing apparatus 100 can by insert in conjunction with latch (second cleaning and polishing end 108) time writer 200 tail ends in conjunction with in the pin hole 202, and time writer 200 and electromagnetic type erasing apparatus 100 are combined into one, make it be easy to carry and difficult the loss, but when needs used, electromagnetic type erasing apparatus 100 can be extracted and be used separately by time writer 200.Certainly, in other embodiment of the utility model, if the inserting and be fixed in wherein of time writer in conjunction with the pin hole first thicker cleaning and polishing end that is enough to enough greatly to power in the magnetic-type erasing apparatus, also can the electromagnetic type erasing apparatus in the first thicker cleaning and polishing end be combined into one with the time writer of collocation in conjunction with latch as one.
With reference to Fig. 4 A and Fig. 4 B, it shows the electromagnetic type erasing apparatus 100 ' of another preferred embodiment of the utility model and the schematic appearance of the different angles of the time writer 300 of collocation respectively, wherein, Fig. 4 A has identical inner structure and internal circuit with electromagnetic type erasing apparatus 100 ' shown in Fig. 4 B and the electromagnetic type erasing apparatus 100 shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, so do not repeat them here.Electromagnetic type erasing apparatus 100 ' also has the outward appearance roughly the same with electromagnetic type erasing apparatus 100, and unique difference is thicker first the wiping end 106 and be provided with a combined hole 107 of electromagnetic type erasing apparatus 100 '.Time writer 300 is one partly not make or be provided with the time writer of electromagnetic type erasing apparatus or electromagnetic type erasing rubber apparatus at tail end, its with have known time writer the same can being used for now and write on digiboard or the handwriting pad.The tail end of this time writer 300 itself is the more tiny structure that can insert combined hole 107 as in conjunction with latch, or its tail end is provided with the projection that can insert combined hole 107 partly 302 as in conjunction with latch, wipe the combined hole of holding on 106 107 by time writer 300 to insert first of electromagnetic type erasing apparatus 100 ' in conjunction with latch (or projection partly) 302, and time writer 300 and electromagnetic type erasing apparatus 100 ' are combined into one, make it be easy to carry and difficult the loss, but when needs used, electromagnetic type erasing apparatus 100 ' can be extracted and be used separately by time writer 300.Certainly, in other embodiment of the utility model, also combined hole can be arranged at the second more tiny cleaning and polishing end in the power supply magnetic-type erasing apparatus, and be combined into one with the time writer of arranging in pairs or groups whereby, partly want tiny of being enough to insert this combined hole on being arranged on the second more tiny cleaning and polishing end but prerequisite is the projection of the tail end of time writer or tail end, and be fixed in wherein and not and can break away from easily or fracture.
Therefore, electromagnetic type erasing apparatus 100 of the present utility model is taked to touch that switch (first little switch 112 and second little switch 114 that touches of touching) control capacitance (second electric capacity 122 and the 3rd electric capacity 124) participates in resonant circuit and the resonance mode that changes the resonant frequency of resonant circuit with little, the relative displacement with between two magnetisable materials such as magnetic element and coil part that replacement traditional electrical magnetic-type erasing apparatus is taked changes the mode of the resonant frequency of resonant circuit, therefore, and make electromagnetic type erasing apparatus of the present utility model not only can overcome traditional electrical magnetic-type erasing apparatus because of oppressing the unconspicuous problem of the frequency change that causes inadequately, and can ignore the size that the electromagnetic type erasing apparatus is exerted pressure, and has tangible frequency change, more therefore, omit traditional electrical magnetic-type erasing apparatus in order to the element of support with two magnetisable materials such as collocation magnetic element and coil parts, support component for example, magnetic element, element such as annular gasket and flexible member makes electromagnetic type erasing apparatus of the present utility model can have better simply structure and assembling procedure.
In addition, because electromagnetic type erasing apparatus of the present utility model itself is independently individual, and can use separately, and can produce at it in problems such as wearing and tearing, consumption or even fault, directly change the electromagnetic type erasing apparatus, and do not need as traditional time writer when the electromagnetic type erasing apparatus of its tail end produces these problems, can not change the wiping arrangement of its tail end separately, but need to change whole time writer, so electromagnetic type erasing apparatus of the present utility model has lower alternative costs.Yet, electromagnetic type erasing apparatus of the present utility model again can be by some integrated structures on it, the second for example more tiny cleaning and polishing end or be arranged at combined hole on the first thicker cleaning and polishing end etc., exclusive time writer with a collocation, for example the time writer tail end has the latch combined hole or as in conjunction with the projection of latch partly, be combined into one, and make it easy to carry and difficult the loss.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (12)
1. an electromagnetic type erasing apparatus is characterized in that, comprises:
One is available for users to grip the main body of use;
One is subjected to the compressing meeting towards first cleaning and polishing end that this body interior direction moves, and is arranged at an end of this main body; And
One is subjected to the compressing meeting towards second cleaning and polishing end that this body interior direction moves, and is arranged at the other end of this main body, and wherein, this first cleaning and polishing end is thicker than second cleaning and polishing end.
2. electromagnetic type erasing apparatus according to claim 1 is characterized in that, wherein is manufactured with on this main body to be easy to grip and anti-skidding annular lines.
3. electromagnetic type erasing apparatus according to claim 1 is characterized in that, wherein this main body is the right cylinder of a hollow.
4. electromagnetic type erasing apparatus according to claim 1 is characterized in that, wherein this main body comprises:
One is wound in the coil of a powdered-iron core, and this coil is arranged at this body interior;
One forms first electric capacity of a resonance circuit with this coil, and this first electric capacity is arranged at this body interior;
One second electric capacity, this second electric capacity is in parallel with this coil and this first electric capacity, and is arranged at this body interior;
One first little switch that touches, this first little switch that touches first is wiped end and is arranged at this body interior corresponding to this, and this first littlely touches switch and the electric connection of this second electric capacity, in order to control the resonance that this second electric capacity participates in this resonant circuit;
One the 3rd electric capacity, the 3rd electric capacity is in parallel with this coil and this first electric capacity, and is arranged at this body interior; And
One second little switch that touches, this second little switch that touches second is wiped end and is arranged at this body interior corresponding to this, and this second littlely touches switch and the electric connection of the 3rd electric capacity, in order to control the resonance that the 3rd electric capacity participates in this resonant circuit.
5. electromagnetic type erasing apparatus according to claim 4 is characterized in that, wherein this first cleaning and polishing end is provided with one in order to contact and to open this first little first contact element that touches switch when this first cleaning and polishing end pressurized retreats.
6. electromagnetic type erasing apparatus according to claim 5 is characterized in that, wherein this first contact element is a projection, projection or thimble.
7. electromagnetic type erasing apparatus according to claim 4 is characterized in that, wherein this second cleaning and polishing end is provided with one in order to contact and to open this second little second contact element that touches switch when this second cleaning and polishing end pressurized retreats.
8. electromagnetic type erasing apparatus according to claim 7 is characterized in that, wherein this second contact element is a projection, projection or thimble.
9. electromagnetic type erasing apparatus according to claim 1 is characterized in that, wherein this electromagnetic type erasing apparatus have one can insert one have tail end hole time writer in conjunction with latch.
10. electromagnetic type erasing apparatus according to claim 9 is characterized in that, should be this second cleaning and polishing end in conjunction with latch wherein.
11. electromagnetic type erasing apparatus according to claim 1 is characterized in that, wherein this electromagnetic type erasing apparatus has a combined hole that can partly insert for the tail end of a time writer or tail end projection.
12. electromagnetic type erasing apparatus according to claim 11 is characterized in that, wherein this combined hole is arranged at this first cleaning and polishing end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206448095U CN201903851U (en) | 2010-12-01 | 2010-12-01 | Electromagnetic erasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206448095U CN201903851U (en) | 2010-12-01 | 2010-12-01 | Electromagnetic erasing device |
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| CN201903851U true CN201903851U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206448095U Expired - Fee Related CN201903851U (en) | 2010-12-01 | 2010-12-01 | Electromagnetic erasing device |
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| CN (1) | CN201903851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786238A (en) * | 2014-11-26 | 2016-07-20 | 辛纳普蒂克斯公司 | Sensing objects using multiple transmitter frequencies |
| CN109643211A (en) * | 2016-08-19 | 2019-04-16 | 微软技术许可有限责任公司 | Adjustable digital eraser |
-
2010
- 2010-12-01 CN CN2010206448095U patent/CN201903851U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786238A (en) * | 2014-11-26 | 2016-07-20 | 辛纳普蒂克斯公司 | Sensing objects using multiple transmitter frequencies |
| CN105786238B (en) * | 2014-11-26 | 2020-08-07 | 株式会社和冠 | Sensing an object with multiple transmitter frequencies |
| CN109643211A (en) * | 2016-08-19 | 2019-04-16 | 微软技术许可有限责任公司 | Adjustable digital eraser |
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