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CN204835985U - Permanent magnetism response magnetic force positioning mechanism - Google Patents

Permanent magnetism response magnetic force positioning mechanism Download PDF

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Publication number
CN204835985U
CN204835985U CN201520459654.0U CN201520459654U CN204835985U CN 204835985 U CN204835985 U CN 204835985U CN 201520459654 U CN201520459654 U CN 201520459654U CN 204835985 U CN204835985 U CN 204835985U
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CN
China
Prior art keywords
magnetic
magnet
permanent magnets
resistance groove
gap
Prior art date
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Withdrawn - After Issue
Application number
CN201520459654.0U
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Chinese (zh)
Inventor
罗虹
张平
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Beijing Jingye Bearing Ltd By Share Ltd
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Individual
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Priority to CN201520459654.0U priority Critical patent/CN204835985U/en
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Abstract

The utility model provides a permanent magnetism response magnetic force positioning mechanism, is including the mount that is used for fixed permanent magnet and one lure the magnet, and this mount orientation lures magnet, its characterized in that: two fixed permanent magnetism block on the mount moves towards the one side that lures the magnet keep a clearance and parallel range side by side between this two permanent magnetism block, this two permanent magnetism block's magnetic pole is opposite, stretches out this mount, set up a magnetic resistance groove on this surface that lures the magnet towards the mount, this magnetic resistance groove is just to the clearance between these two permanent magnetism block, and the broadband in this magnetic resistance groove and this clearance is the same, should with certain clearance fix on the mount permanent magnetism block with have the magnetic resistance groove to lure the magnet to constitute a location magnetic force together vice. Because the magnetic resistance groove is to the blocking effect of the magnetic line of force for permanent magnetism block's magnetic force just concentrate on to magnetic resistance groove both sides lure the magnet on, therefore have the function of magnetic force automatic positioning.

Description

Permanent magnet induction magnetic force detent mechanism
Technical field:
The utility model relates to the technical field of magnet application, particularly utilizes the physical characteristic of permanent magnet and a kind of permanent magnet induction magnetic force detent mechanism of designing.
Background technology:
Permanent magnet to keep the magnet of its magnetic to claim for a long time.As natural magnetite (magnetic iron ore) and artificial magnet's (alnico alloy) etc.In magnet except permanent magnet, also there is the just magnetic electromagnet that need be energized.
As everyone knows, magnetic comprises N pole and S pole, is that homopolar-repulsion and heteropole are attracting between N pole and S pole, and the magnetic line of force around magnet is between N pole and S pole.For magnetic induction material or lure magnetic material (hereinafter referred to as luring magnet), the objects such as such as iron, when the N pole of magnetic or S are extremely close to magnetic strength material, permanent magnet is for the attraction luring magnet to produce, this attraction is because the magnetic pole of magnetic material induces opposite pole on inductive material, the mutual attractive force of opposite pole.As depicted in figs. 1 and 2, be the schematic diagram of permanent magnet to magnetic induction material producing magnetisation power.The magnetic line of force 7 or to be called on magnetic induction line that the tangential direction of certain point is exactly the magnetic direction of this point, if magnetic field does not change, the direction of magnetic induction line is determined, can not change.If want the direction changing magnetic field, will add another magnetic field around magnetic field, two magnetic fields are superimposed, also can change the direction in former magnetic field.
In Fig. 1, the S of permanent magnet, extremely to luring magnets generate magnetic force, lures the location point P1 on magnet to be positioned at immediately below S pole, and the magnetic force suffered by P1 is the strongest, and lure the location point P2 on magnet to depart from immediately below S pole, the magnetic force suffered by it is more weak than position P1.Position P2 departs from immediately below S pole far away, and suffered magnetic force is less.If keep at permanent magnet and lure magnet apart from constant, permanent magnetic material is moved right, when permanent magnet moves to position P2, makes P2 be positioned at immediately below permanent magnet, induced magnetism now suffered by the P2 of position is maximum, and the magnetic force that P1 place, position is subject to is relatively little.
In Fig. 2, the N of permanent magnet, extremely to luring magnets generate magnetic force, lures the location point P1 on magnet to be positioned at immediately below S pole, and the magnetic force suffered by P1 is the strongest, and lure the location point P2 on magnet to depart from immediately below N pole, the magnetic force suffered by it is more weak than position P1.Position P2 departs from immediately below N pole far away, and suffered magnetic force is less.If keep at permanent magnet and lure magnet apart from constant, permanent magnetic material is moved right, when permanent magnet moves to position P2, makes P2 be positioned at immediately below permanent magnet, induced magnetism now suffered by the P2 of position is maximum, and the magnetic force that P1 place, position is subject to is relatively little.
Permanent magnet is uncertain to the position luring magnet to apply magnetic force, permanent magnet is placed on which position luring magnet, it right over there applies a magnetic force, if need to keep requiring keep permanent magnet and lure the position of magnets generate magnetic force for time fixing, this magnetic force structure is just undesirable.
In the actual use of magnetic force mechanism, need group of magnets zoarium with sense magnet when magnetic attraction, when it attracts each other contact, the position of contact or the position of contact trend are fixing, instead of random position.Present inventor, through research and many experiments, has invented a kind of permanent magnet induction magnetic force detent mechanism that can automatically locate.
Utility model content
The purpose of this utility model is open a kind of permanent magnet induction magnetic force detent mechanism, when guarantee by magnet piece assembly with lure magnet close to each other with when contacting, this mechanism can ensure assembly with lure the contact position of magnet or tend to contact position constant.That is assembly and lure magnet when attracting each other, can locate automatically.
Permanent magnet induction magnetic force detent mechanism of the present utility model is implemented as follows, a kind of permanent magnet induction magnetic force detent mechanism, the fixed mount and one comprised for fixed permanent magnet lures magnet, this fixed mount is towards luring magnet, it is characterized in that: fix two permanent magnets at fixed mount towards luring in the one side of magnet, keep a gap between this two permanent magnets and parallel side-by-side arrangement, the magnetic pole of this two permanent magnets is contrary, stretches out this fixed mount; The surface of magnet should lured to offer a magnetic resistance groove towards fixed mount, this magnetic resistance groove is just to the gap between these two permanent magnets, and this magnetic resistance groove is identical with the broadband in this gap; Should permanent magnets on fixed mount be fixed on certain interval and there is luring together with magnet of magnetic resistance groove be formed a positioned magnetic pair.
This fixed support is fixed with another permanent magnets, and this permanent magnets is arranged on the side of this positioned magnetic pair.And the permanent magnets be adjacent is arranged in parallel, keep a gap between the permanent magnets that this permanent magnets is adjacent, this permanent magnets is just to the magnetic pole luring magnet, and the magnetic pole of the permanent magnets be adjacent is contrary; Luring the surface of magnet to offer another magnetic resistance groove, the width of this magnetic resistance groove and this permanent magnets and and this positioned magnetic pair between gap identical; A permanent magnets of this positioned magnetic pair that this permanent magnets is adjacent forms another positioned magnetic pair.
Fixed mount is fixed with two or more positioned magnetic secondary.
Keep a gap between two adjacent positioned magnetic pairs, this gap is identical with the gap of the permanent magnets of each positioned magnetic pair; Just a magnetic resistance groove identical with this gap width is being offered to luring on magnet of this gap, the permanent magnets in what this was adjacent be provided with gap and be provided with magnetic resistance groove to lure magnet to form a new positioned magnetic secondary
The key of the technical program is the magnetic resistance groove luring magnet surface to offer.If when not having magnetic resistance groove, S pole, towards the magnetic patch luring magnet, under the induction of its S pole field, induces N pole field luring on magnet.N pole is towards the magnetic patch luring magnet, under the induction of its N pole field, induce S pole field luring on magnet, mutually superpose luring N pole field that magnet is induced and S pole field, affect the attraction of magnet piece to inductor, as shown in Figure 3, in figure 3, fix two magnet pieces on one object, two magnet pieces are made to stretch out the object of fixed magnet block, be parallel to each other between two magnet pieces, and keep certain spacing, the magnetic pole of two magnetic patch extensions is contrary, when the assembly being fixed with magnetic patch lures magnet near one, two magnetic poles all can produce induced magnetism to luring magnet, and link together with luring magnet, but two magnetic poles with lure the position of magnet contact to be random.
When luring the surface of magnet to offer magnetic resistance groove, S pole is towards the magnetic patch luring magnet, under the induction of its S pole field, induce N pole field luring on magnet, due to the existence of magnetic resistance groove, cut off N pole field towards at the magnetic line of force luring the S pole field on magnet, the N pole field magnetic line of force concentrate on S pole towards lure magnet magnetic patch just to position, the S pole of such magnetic patch with lure the induction magnetic pole N of magnet to form a pair gravitational electric, attract each other; A mutual repulsive force is had in the magnetic patch N pole luring the induced field N pole of magnet being responded to generation and another magnetic pole to put upside down.Similarly, N pole is towards the magnetic patch luring magnet, under the induction of its N pole field, induce S pole field luring on magnet, due to the existence of magnetic resistance groove, cut off S pole field towards at the magnetic line of force luring the N pole field on magnet, the S pole field magnetic line of force concentrate on N pole towards lure magnet magnetic patch just to position, the N pole of such magnetic patch with lure the induction magnetic pole S of magnet to form a pair gravitational electric, attract each other; A mutual repulsive force is had in the magnetic patch S pole luring the induced field S pole of magnet being responded to generation and another magnetic pole to put upside down.Under the public same-action of above-mentioned induced field attraction and repulsive force each other, the assembly being fixed with two blocks of magnet is always kept towards the trend of fixed position, or remains on fixed position.
The cross section of this magnetic resistance groove is a del, U-type groove or semicircular straight trough.The size range of above-mentioned two permanent magnets gap width N is between 0.1 millimeter and 10 millimeters.The size range of the height H in gap is greater than or equal to 0.1 millimeter (mm); The size range of magnetic resistance channel opening width N is between 0.1 millimeter (mm) to 10 millimeters (mm).The size range of the opening degree of depth h of magnetic resistance groove is greater than or equal to 0.1 millimeter (mm).
Two or more than two permanent magnets minimum is discharged by fixed mount by the utility model side by side, retain certain interval each other, and the magnet that the magnetic pole of adjacent magnetic patch is contrary, inductor is offered the magnetic resistance groove corresponding with gap, because magnetic resistance groove is to the blocking effect of the magnetic line of force, make permanent magnets only align right inductor and produce stronger magnetic force, the mechanism thus with this magnetic block combination has the function that magnetic force is located automatically.
Accompanying drawing explanation
Fig. 1 magnet S pole is towards the N pole of the magnetic line of force and sensor magnet that lure magnet;
Fig. 2 magnet N pole is towards the S pole of the magnetic line of force and sensor magnet that lure magnet;
Fig. 3 is fixed with inverted two magnetic patch of magnetic pole luring on magnet and responds to magnetic pole;
Fig. 4 structural representation of the present utility model;
Fig. 5 magnetic resistance groove is the schematic diagram of del;
Fig. 6 magnetic resistance groove is the schematic diagram of U-type groove;
The two magnetic patch locations drawing that Fig. 7 magnetic pole is contrary;
Fig. 8 is of the present utility model is furnished with three permanent magnets embodiments;
Fig. 9 is of the present utility model is furnished with four permanent magnets embodiments;
Figure 10 embodiment being provided with two positioned magnetic pairs of the present utility model;
Figure 11 sense magnet of the present utility model is provided with the embodiment of multiple magnetic resistance groove.
In accompanying drawing, the label of each parts is:
Permanent magnets-1,2,5,6;
State determines frame-3;
Lure magnet-4;
The magnetic line of force-7;
Embodiment
In order to understand structure of the present utility model and operation principle better, below in conjunction with accompanying drawing, by specific embodiment, the utility model is described in detail
Fig. 4: structural representation of the present utility model, permanent magnet induction magnetic force detent mechanism in figure, comprises the fixed mount 3 for fixed permanent magnet, in practice, this fixed mount may be parts of certain product, and these parts can be magnetic permeable material, also can be non-magnetic permeable material.This fixed mount is fixed two magnetic patch 1 and magnetic patch 2, the surface of the extremely outstanding fixed mount 3 of S of one of them magnetic patch 1, extremely outstanding fixed mount 3 surface of N of another magnetic patch 2, magnetic patch 1 is identical with the height that magnetic patch 2 gives prominence to fixed mount surface, two magnetic patch 1,2 parallel side-by-side are placed, and magnetic patch 1 and magnetic patch 2 keep a gap each other.Refer to Fig. 7: the two magnetic patch locations drawing that magnetic pole is contrary.Be that the gap between magnetic patch 1 and magnetic patch 2 is B shown in figure; In addition, the height that magnetic patch 1 and magnetic patch 2 give prominence to fixed mount 3 surface is identical, and this is highly H.In practice, adjusting play width B meets actual needs with the numeral of the height H of stretching out as required.Magnetic pole is contrary, stretch out the fixed mount certain height H in surface and keep the magnetic patch 1 of gap B to form a positioned magnetic pair each other together with magnetic patch 2.
The size range of the width B in above-mentioned gap is that 0.1 millimeter (mm) is to 10 millimeters (mm).The size range of the height H in gap is greater than or equal to 0.1 millimeter (mm).
In this positioned magnetic pair unit, offer a magnetic resistance groove A luring the surface of magnet 4.Fig. 5 and Fig. 6 please be participate in, under the gap of this magnetic resistance groove A between magnetic patch 1 and magnetic patch 2.This magnetic resistance groove A, A ' and A " width be b, the degree of depth of magnetic resistance groove A is h.The width b of magnetic resistance groove A is that B is identical with the gap between the magnetic patch 1 on fixed mount 3 and magnetic patch 2.
Refer to Fig. 5: magnetic resistance groove is the schematic diagram of del, in figure, the shape of the magnetic resistance groove A ' offered luring magnet surface is del, and triangle base is wide is b, and the leg-of-mutton degree of depth is h.
Refer to Fig. 6: magnetic resistance groove is the schematic diagram of U-shaped, in figure, the magnetic resistance groove A offered luring magnet surface " shape be U-shaped, U-shaped bottom opening is wide is b, and the degree of depth is h.
The size range of the A/F b of magnetic resistance groove is that 0.1 millimeter (mm) is to 10 millimeters (mm).The size range of the opening degree of depth h of magnetic resistance groove is greater than or equal to 0.1 millimeter (mm).
Fig. 8: the embodiment being furnished with three permanent magnets forever of the present utility model, as shown in the figure, on fixed mount 3 except be provided with the positioned magnetic pair in Fig. 4 except, a magnetic patch 5 identical with magnetic patch 2 is set on the right of magnetic patch 2 again, magnetic patch 1, magnetic patch 5 and to lure magnet to form an other positioned magnetic secondary, namely magnetic patch 2, magnetic patch 1 and to lure magnet to form a positioned magnetic secondary, magnetic patch 1, magnetic patch 5 and to lure magnet to form another positioned magnetic secondary.Particularly: for the fixed mount 3 of fixed permanent magnet fixes three magnetic patch 1, magnetic patch 2 and magnetic patch 5, the surface of the extremely outstanding fixed mount 3 of S of magnetic patch 1, the surface of the extremely outstanding fixed mount 3 of N of magnetic patch 2 and magnetic patch 5.The height that magnetic patch 1, magnetic patch 2 and magnetic patch 5 give prominence to fixed mount 3 surface portion is identical, and the placement arranged in parallel of three magnetic patch 1,2 and 5, magnetic patch 1, magnetic patch 2 and magnetic patch 5 keep a gap each other.Two magnetic resistance groove A1 and A2 are offered on the surface of magnet 4 that lures corresponding with this two positioned magnetics parafacies, the width of magnetic resistance groove A1 is identical with the gap between magnetic patch 1 and magnetic patch 2, the width of magnetic resistance groove A2 is identical with the gap between magnetic patch 1 and magnetic patch 5, magnetic resistance groove A1 is just to the gap between magnetic patch 1 and magnetic patch 2, and magnetic resistance groove A2 is just to the gap between magnetic patch 1 and magnetic patch 5.
Fig. 9: be of the present utility modelly furnished with four permanent magnets embodiments, of the present utility modelly be furnished with four permanent magnets embodiments, as shown in the figure, on fixed mount 3 except being provided with three magnetic patch as shown in Figure 8, a magnetic patch 6 identical with magnetic patch 1 is set on the right of magnetic patch 5 again, it is secondary that magnetic patch 5 and magnetic patch 6 form a positioned magnetic again, namely magnetic patch 2 and magnetic patch 1 form a positioned magnetic pair, it is secondary that magnetic patch 1 and magnetic patch 5 form another positioned magnetic, and it is secondary that magnetic patch 5 and magnetic patch 6 form a positioned magnetic again.Particularly: on fixed mount 3, fix four magnetic patch 1, magnetic patch 2, magnetic patch 5 and magnetic patch 6, the surface of the extremely outstanding fixed mount 3 of N of magnetic patch 2 and magnetic patch 5, the surface of the extremely outstanding fixed mount 3 of S of magnetic patch 1 and magnetic patch 6.The height that magnetic patch 1, magnetic patch 2, magnetic patch 5 and magnetic patch 6 give prominence to fixed mount 3 surface is identical, and the placement arranged in parallel of four magnetic patch 1,2,5 and 6, maintains gap each other.Two magnetic resistance grooves A1, A2 and A3 are offered luring the surface of magnet 4, the width of magnetic resistance groove A1 is identical with the gap between magnetic patch 1 and magnetic patch 2, the width of magnetic resistance groove A2 is identical with the gap between magnetic patch 1 and magnetic patch 5, and the width of magnetic resistance groove A3 is identical with the gap between magnetic patch 5 and magnetic patch 6; Magnetic resistance groove A1 is just to the gap between magnetic patch 1 and magnetic patch 2, and magnetic resistance groove A2 is just to the gap between magnetic patch 1 and magnetic patch 5, and magnetic resistance groove A3 is just to the gap between magnetic patch 5 and magnetic patch 6.
Figure 10: the embodiment being provided with two positioned magnetic pairs of the present utility model, structural similarity in the embodiment of this magnetic induction magnetic force detent mechanism and Fig. 9, difference part is, it is secondary that magnetic patch 1 and magnetic patch 2 form independent positioned magnetic, and it is secondary that magnetic patch 5 and magnetic patch 6 form another independent positioned magnetic.Relatively far apart, the magnetic line of force each other influences each other less the distance of these two positioned magnetic pairs.On fixed mount 3, particularly arranging two, independently positioned magnetic is secondary, two magnetic resistance groove A1 and A3 are offered luring the surface of magnet 4, the width of magnetic resistance groove A1 is identical with the gap between magnetic patch 1 and magnetic patch 2, and the width of magnetic resistance groove A3 is identical with the gap between magnetic patch 5 and magnetic patch 6; Magnetic resistance groove A1 is just to the gap between magnetic patch 1 and magnetic patch 2, and magnetic resistance groove A3 is just to the gap between magnetic patch 5 and magnetic patch 6.
When implementing the utility model, according to the difference of specific product, can arrange other combination, the positioned magnetic such as arranging more groups is secondary.
Figure 11: embodiment sense magnet of the present utility model being provided with multiple magnetic resistance groove, structural similarity in the embodiment of this magnetic induction magnetic force detent mechanism and Fig. 4, difference part is, offers three magnetic resistance grooves A1, A2 and A3 luring the surface of magnet 4.As previously mentioned, positioned magnetic of the present utility model is secondary under the effect of induced magnetism, inclination is in there being the place of magnetic resistance groove to locate, such as this positioned magnetic pair is located at magnetic resistance groove A1 place, as under the effect of enough large external force F, positioned magnetic is secondary mobile to magnetic resistance groove A2 place, when moving near magnetic resistance groove A2, this positioned magnetic pair is located to magnetic resistance groove A2, as continued to apply enough large external force to positioned magnetic pair, it is made to move to magnetic resistance groove A3, when moving near magnetic resistance groove A3, this positioned magnetic pair is located to magnetic resistance groove A3, its tab order is A1, A2 and A3.When externally applied forces and the external force F in Figure 11 are just in time contrary, its tab order is A3, A2 and A1.
If keep positioned magnetic pair motionless, and make to lure magnet 4 side-to-side movement, its positioning principle is same as described above, does not carry repeat at this.
Above patent working scheme and specific embodiment are the execution modes according to inventive concept, and in the claims, other embodiments according to design of the present utility model also belong to protection range of the present utility model to protection range record of the present utility model.

Claims (8)

1. a permanent magnet induction magnetic force detent mechanism, the fixed mount and one comprised for fixed permanent magnet lures magnet, this fixed mount is towards luring magnet, it is characterized in that: fixing two permanent magnets towards luring on the fixed mount of magnet, a gap is kept and parallel side-by-side arrangement between this two permanent magnets, the magnetic pole of this two permanent magnets is contrary, stretches out this fixed mount; Offering a magnetic resistance groove towards the surface of magnet that lures of fixed mount, this magnetic resistance groove is just to the gap between these two permanent magnets, and this magnetic resistance groove is identical with the broadband in this gap; Should permanent magnets on fixed mount be fixed on certain interval arrangement and there is luring together with magnet of magnetic resistance groove be formed a positioned magnetic pair.
2. permanent magnet induction magnetic force detent mechanism according to claim 1, it is characterized in that: on this fixed support, be fixed with another permanent magnets, this permanent magnets is arranged on the side of this positioned magnetic pair; And the permanent magnets arranged in parallel be adjacent, keep a gap between the permanent magnets that this permanent magnets is adjacent, this permanent magnets is just to the magnetic pole luring magnet, and the magnetic pole of the permanent magnets be adjacent is contrary; Luring the surface of magnet to offer another magnetic resistance groove, the width of this magnetic resistance groove and this permanent magnets and and this positioned magnetic pair between gap identical; An adjacent permanent magnet block of this permanent magnets and its this positioned magnetic pair forms another positioned magnetic pair.
3. permanent magnet induction magnetic force detent mechanism according to claim 1, is characterized in that: on fixed mount, be fixed with two or more positioned magnetic secondary.
4. permanent magnet induction magnetic force detent mechanism according to claim 1, is characterized in that: lure magnet to be provided with or plural magnetic resistance groove at this.
5. permanent magnet induction magnetic force detent mechanism according to claim 3, is characterized in that: keep a gap between two adjacent positioned magnetic pairs, this gap is identical with the gap of the permanent magnets of each positioned magnetic pair; Just a magnetic resistance groove identical with this gap width is being offered to luring on magnet of this gap, the permanent magnets in what this was adjacent be provided with gap and be provided with magnetic resistance groove to lure magnet to form a new positioned magnetic secondary.
6. the permanent magnet induction magnetic force detent mechanism according to claim 1,2,3,4 or 5, is characterized in that: the cross section of this magnetic resistance groove is a del, U-type groove or semicircular straight trough.
7. the permanent magnet induction magnetic force detent mechanism according to claim 1,2,3,4 or 5, is characterized in that: the size range of above-mentioned two permanent magnets gap width N is between 0.1 millimeter and 10 millimeters; The size range of the height H in gap is greater than or equal to 0.1 millimeter; The size range of magnetic resistance channel opening width N is between 0.1 millimeter to 10 millimeters, and the size range of the opening degree of depth h of magnetic resistance groove is greater than or equal to 0.1 millimeter.
8. permanent magnet induction magnetic force detent mechanism according to claim 7, is characterized in that: the cross section of this magnetic resistance groove is a del, U-type groove or semicircular straight trough.
CN201520459654.0U 2015-06-30 2015-06-30 Permanent magnetism response magnetic force positioning mechanism Withdrawn - After Issue CN204835985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520459654.0U CN204835985U (en) 2015-06-30 2015-06-30 Permanent magnetism response magnetic force positioning mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520459654.0U CN204835985U (en) 2015-06-30 2015-06-30 Permanent magnetism response magnetic force positioning mechanism

Publications (1)

Publication Number Publication Date
CN204835985U true CN204835985U (en) 2015-12-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106330000A (en) * 2015-06-30 2017-01-11 罗虹 Permanent magnetic induction magnetic positioning mechanism
CN106737337A (en) * 2017-01-23 2017-05-31 车晋绥 Magnetic control monkey wrench

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106330000A (en) * 2015-06-30 2017-01-11 罗虹 Permanent magnetic induction magnetic positioning mechanism
CN106330000B (en) * 2015-06-30 2018-09-14 江苏京冶海上风电轴承制造有限公司 Permanent magnet induction magnetic force detent mechanism
CN106737337A (en) * 2017-01-23 2017-05-31 车晋绥 Magnetic control monkey wrench

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20170303

Address after: 102600 Daxing District, Beijing Huang Village street, No. 5

Patentee after: Beijing Jingye bearing Limited by Share Ltd

Address before: 100000 Beijing city Xicheng District Chengen Hutong No. 5

Patentee before: Luo Hong

Patentee before: Zhang Ping

AV01 Patent right actively abandoned

Granted publication date: 20151202

Effective date of abandoning: 20180914

AV01 Patent right actively abandoned