CN204186206U - Safe door vibrationproof electromagnet - Google Patents
Safe door vibrationproof electromagnet Download PDFInfo
- Publication number
- CN204186206U CN204186206U CN201420630713.1U CN201420630713U CN204186206U CN 204186206 U CN204186206 U CN 204186206U CN 201420630713 U CN201420630713 U CN 201420630713U CN 204186206 U CN204186206 U CN 204186206U
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- balance plug
- hinged
- plug
- electromagnetic core
- balance
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Abstract
The utility model discloses a kind of safe door vibrationproof electromagnet, comprise support, electromagnetic coil, electromagnetic core and closing spring, one end that electromagnetic core extends electromagnetic coil is elongated end, the side of electromagnetic coil is provided with a balance plug, balance plug is a cylinder be axially arranged in parallel with electromagnetic core, this cylinder one end is effect end, and the other end is hinged end, and balance plug slides and wears in the bracket; Support is provided with a stop surface, and this stop surface is between the effect end and hinged end of balance plug; Closing spring is sheathed in balance plug, forces balance plug extending to outside support without effect end during External Force Acting; A lever is provided with, the elongated end of the hinged electromagnetic core in lever one end, the hinged end of the hinged balance plug of the other end between electromagnetic core and balance plug.The utility model structure simply, easily manufactures, and adopts above setting, electromagnet can be prevented in the maloperation vibrated or under impact condition, have high safety and high reliability.
Description
Technical field
The utility model relates to a kind of strongbox door lock, is specifically related to a kind of electromagnet controlling safe bolt opening and closing-and inhale iron also known as electricity, particularly relate to a kind of vibrationproof electromagnet of safe door.
Background technology
Strongbox is a kind of special container, needs the effect being realized its insurance by the door lock that a good reliability, safety are high.Existing strongbox door lock generally includes key reading device, bolt component and electromagnet.Traditional electromagnet is widely used in strongbox door lock due to advantages such as simple, the easy manufactures of its structure, has adopted decades so far.
But, along with people are more and more and use strongbox under various environment, it is found that existing electromagnet is when being subject to up-down vibration or impacting when safe body, electromagnet can force strongbox to open by mistake door or inefficacy because it is subject to the effect of inertia force.Due to existing electromagnet structure existing above defect, the electromagnet coefficient of stability and safety factor are reduced, thus certainty result in the reduction of the safety and stability of strongbox (cabinet).
Shown in accompanying drawing 1-3, the electromagnet in existing strongbox drives iron core by electromagnetic coil, and control the unlatching of door lock by closing spring resilient structures and close.When the solenoid is activated, iron core is subject to the suction of electromagnetic coil, compression close spring, forces iron core to move towards the direction away from dead bolt, thus eliminates the position-limiting action to dead bolt, achieve the unlatching of door lock; When electromagnetic coil power-off, electromagnetic coil loses the suction to iron core, and closing spring has reset bounce under compression due to it, thus forces iron core resilience until realize spacing to dead bolt.The magnetic attraction of electromagnet is limited and must be greater than the elastic force of closing spring, and therefore, the elastic force of closing spring can not be too large.But, when the state that electromagnet is closed, because closing spring elastic force is less, under the situation of electromagnet can be made running into vibration, impact, beaing, the impact that iron core wherein can be subject to external force inertia overcomes closing spring acting, compression close spring voluntarily, thus lose the position-limiting action to dead bolt, cause strongbox door lock to open by mistake door or inefficacy.
Therefore, in order to overcome above shortcoming, by improving the structure of electromagnet, designing a kind of vibrationproof electromagnet that can prevent strongbox from opening by mistake door, is the problem that the utility model will be studied.
Summary of the invention
The utility model provides a kind of safe door vibrationproof electromagnet, in order to solve the defect of existing strongbox door lock electricity consumption magnet existing for this body structure thus cause it to open by mistake the technical problem of door, be intended to by designing a kind of vibrationproof electromagnet that can prevent strongbox from opening by mistake door, thus realize preventing strongbox door lock from opening by mistake the object of door.
For achieving the above object, the technical solution adopted in the utility model is: a kind of safe door vibrationproof electromagnet, comprise support, electromagnetic coil, electromagnetic core and closing spring, electromagnetic coil opposite brackets is fixed, electromagnetic core coordinates with electromagnetic coil, and one end that electromagnetic core stretches out electromagnetic coil is elongated end, the side of described electromagnetic coil is provided with a balance plug, described balance plug is a cylinder axially parallel with electromagnetic core, one end of this cylinder is effect end, the other end is hinged end, balance plug slides and wears in the bracket, support is provided with a stop surface, this stop surface is between the effect end and hinged end of balance plug, described closing spring is set on balance plug, and one end of closing spring acts on balance plug, and the other end acts on described stop surface, and when electromagnetic coil power-off, closing spring forces the effect end opposite brackets of balance plug to move to primary importance, a lever is also provided with between described electromagnetic core and balance plug, the elongated end of the hinged electromagnetic core in one end of lever, the hinged end of the hinged balance plug of the other end, the middle part of lever is hinged through fulcrum opposite brackets, when the solenoid is activated, electromagnetic core moves to the second place by lever drives balance plug from described primary importance.
Related content in technique scheme is explained as follows:
1, in such scheme, described balance plug also connects a compressing tablet, and described compressing tablet is set in balance plug, and balance plug is provided with a limiting section, forces compressing tablet and balance plug geo-stationary.
2, in such scheme, the elongated end of described electromagnetic core offers the first axis hole that the first slotted eye and vertical first slotted eye wear, and the hinged end of described balance plug offers the second axis hole that the second slotted eye and vertical second slotted eye wear; The elongated end of described electromagnetic core passes through one end of the hinged described lever of the first jointed shaft, and the hinged end of described balance plug passes through the other end of the hinged described lever of the second jointed shaft.
3, in such scheme, described balance plug top is arranged with axle sleeve, mechanical wear when contacting with dead bolt for the protection of balance plug.
4, in such scheme, described fulcrum is arranged between described electromagnetic core and balance plug, and fulcrum is axially perpendicular to the plane at the axle of electromagnetic core and the axle place of balance plug.
5, in such scheme, described primary importance refers in fact the position that the balance effect end of plug and dead bolt offset, this position is moved to by balance plug, realize spacing to dead bolt, thus realize blocking function, the second place refers in fact balance plug and returns and that arrive position spacing to dead bolt, and it is spacing that balance plug moves to that this position loses dead bolt.
6, in such scheme, support is provided with a stop surface, this stop surface can be realized by the baffle plate be fixed on support, baffle plate offers the through hole passed for balance plug, sheathed closing spring one end on balance plug is against on the stop surface of this baffle plate upper surface, and what force the effect end opposite brackets of balance plug to move to dead bolt is spacing.
7, in such scheme, balance plug is provided with three, upper, middle and lower part, the cross-sectional area of the balance cross-sectional area on plug top and bottom is less, cross-sectional area in the middle part of balance plug is larger, make balance plug 5 in the middle part of circumferentially projection become a stopper section, this stopper section is positioned at second area upper portion.
Utility model works principle is: the utility model is provided with a balance plug on the side of existing electromagnetic coil, balance plug is a cylinder axially parallel with electromagnetic core, one end of this cylinder is effect end, the other end is hinged end, balance plug slides and wears in the bracket, support is provided with a stop surface, and this stop surface is between the effect end and hinged end of balance plug; Closing spring is set on balance plug, and one end of closing spring acts on balance plug, and the other end acts on described stop surface, and when electromagnetic coil power-off, closing spring forces the effect end opposite brackets of balance plug to move to primary importance; A lever is also provided with between described electromagnetic core and balance plug, the elongated end of the hinged electromagnetic core in one end of lever, the hinged end of the hinged balance plug of the other end, the middle part of lever is hinged through fulcrum opposite brackets, when the solenoid is activated, electromagnetic core moves to the second place by lever drives balance plug from described primary importance.The utility model produced electromagnetic attraction by being not only used for coordinating electromagnetic coil in conventional electromagnets, but also being used for the electromagnetic core of fitting closure spring action safe bolts and being divided into electromagnetic core and these two parts of balance plug, electromagnetic core and balance plug and be connected by a lever.Electromagnetic core and balance mandrel axis are to parallel, and end is hinged by a lever.When after electromagnetic coil energising, the suction that electromagnetic core is subject to electromagnetic coil generation up moves, because electromagnetic core is by the hinged balance plug of lever, and electromagnetic core acts on the elastic force that the power balancing plug is greater than closing spring, balance plug can be made to overcome closing spring elastic force down move, thus realize electromagnet unlocking function; When electromagnetic coil is cut off the electricity supply, the suction that electromagnetic core is subject to disappears, and now closing spring recovers its deformation, and band dynamic equilibrium plug up moves, thus realizes electromagnet blocking function.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, because the utility model produced electromagnetic attraction by being not only used for coordinating electromagnetic coil in conventional electromagnets, but also being used for the iron core of fitting closure spring action safe bolts and being divided into two iron cores of electromagnetic core and balance plug, electromagnetic core and balance mandrel axis are to parallel, and it is hinged that electromagnetic core and balance plug pass through lever, and the interaction force realized by lever between electromagnetic core and balance plug is oppositely pind down.Made when electromagnet vibrates or hits, the power that electromagnetic core and balance plug can be subject to up or down due to inertia simultaneously, but because electromagnetic core is consistent with the inertia force direction that balance plug is subject to, when electromagnetic core is subject to inertia force for up moving, balance plug is also owing to being subject to identical inertia force for up moving, when the power be subject to being positioned at balance pivot both sides in the same way time, the electromagnetic core laying respectively at balance pivot both sides is pind down mutually with balance plug, two iron cores can be made on the contrary all can not to produce displacement, like this, just the vibration-isolating effect of electromagnet can be realized.
2, because the utility model is owing to being also provided with compressing tablet, and compressing tablet is limited in the space between rack inner wall and bobbin top, and compressing tablet cooperative mechanical lock key uses, and can guarantee in the event of a power failure, realizes mechanical lock and opens or close safe door.
3, because the utility model balance plug top is arranged with axle sleeve, mechanical wear when contacting with dead bolt for the protection of balance plug.
Accompanying drawing explanation
Accompanying drawing 1 is the main TV structure schematic diagram of prior art safe door electromagnet;
Accompanying drawing 2 is the perspective view of prior art safe door electromagnet;
Accompanying drawing 3 is the detonation configuration schematic diagram of prior art safe door electromagnet;
Accompanying drawing 4 is the main TV structure schematic diagram of electromagnet in the utility model embodiment;
Accompanying drawing 5 is the perspective view of electromagnet in the utility model embodiment;
Accompanying drawing 6 is the detonation configuration schematic diagram of electromagnet in the utility model embodiment.
In above accompanying drawing: 1, support; 10, bobbin; 11, the first through hole; 12, the second through hole; 13, third through-hole; 2, electromagnetic coil; 3, electromagnetic core; 31, the first slotted eye; 32, the first axis hole; 33, the first jointed shaft; 4, closing spring; 5, plug is balanced; 51, the second slotted eye; 52, the second axis hole; 53, the second jointed shaft; 6, baffle plate; 7, lever; 71, the first hinge hole; 72, the second hinge hole; 73, the 3rd hinge hole; 74, fulcrum; 8, compressing tablet.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one: a kind of safe door vibrationproof electromagnet
Shown in accompanying drawing 4-6, comprise support 1, support 1 bottom opening, support 1 inside is divided into Liang Ge district, left and right.The region on the left side is first area, and be provided with a bobbin 10 in first area, bobbin 10 has top cover and bottom.The bottom of bobbin 10 is offered the through hole 11 that runs through its positive and negative surface, the inside of bobbin 10 is provided with electromagnetic coil 2.Electromagnetic coil 2 has a hollow bulb, and one end of electromagnetic core 3 is located in electromagnetic coil 2, and the other end passes outside bobbin 10 by the first through hole 11 be opened on bobbin 10 bottom, and one end that electromagnetic core 3 stretches out electromagnetic coil 2 is elongated end.
Region on the right of support 1 is second area, and support 1 top cover being positioned at second area offers the second through hole 12 running through its positive and negative surface.In second area, the side of electromagnetic coil 2 is provided with a balance plug 5, described balance plug 5 is a cylinder axially parallel with electromagnetic core 3, one end of this cylinder is effect end, the other end is hinged end, balance plug 5 slides and is located in support 1, support 1 is provided with a stop surface, this stop surface is realized by the baffle plate 6 be fixed on support, this baffle plate 6 is between the effect end and hinged end of balance plug 5, baffle plate 6 and support 1 top cover are arranged in parallel, second area is separated into two, the upper side and lower side part, baffle plate 6 offers the third through-hole 13 running through its positive and negative surface, now, balance plug 5 wears third through-hole 13.
The second through hole 12 be positioned on the top cover on the right side of support 1 is oppositely arranged with the third through-hole 13 be positioned on baffle plate 6.Balance plug 5 one end is passed the third through-hole 13 on baffle plate 6 and extends to second area lower portion, and the other end extends to support 1 tip exterior through the second through hole 12 on top cover on the right side of support 1.Balance plug 5 is axially perpendicular to baffle plate 6.Balance plug 5 has three, upper, middle and lower part, the cross-sectional area of the balance cross-sectional area on plug 5 top and bottom is less, cross-sectional area in the middle part of balance plug 5 is comparatively large, and to make in the middle part of balance plug 5 circumferentially projection become a stopper section, this stopper section is positioned at second area upper portion.Closing spring 4 is sheathed on balance plug 5, and is limited between stopper section and baffle plate 6.One end of closing spring 4 is against the stopper section of balance plug 5, the other end is against baffle plate 6 upper surface place, when electromagnetic coil 2 power-off, closing spring 4 forces the effect end opposite brackets 1 of balance plug 5 to move to primary importance, and primary importance is balance plug 5 and acts on the position of holding and offseting with dead bolt.
A lever 7 is also provided with between electromagnetic core 3 and balance plug 5, lever 7 is provided with fulcrum, the first connecting portion and the second connecting portion, first connecting portion and the second connecting portion lay respectively at the both sides of fulcrum, the fulcrum 74 that fulcrum and is fixed on inside support 1 on rear wall is hinged, the elongated end of lever 7 first connecting portion and electromagnetic core 3 is hinged, lever 7 second connecting portion is hinged with the hinged end of balance plug 5, fulcrum 74 is between electromagnetic core 3 and balance plug 5, and fulcrum 74 is axially perpendicular to the plane at the axle of electromagnetic core 3 and the axle place of balance plug 5.Be specially: the bottom of electromagnetic core 3 along iron mandrel to offering the first slotted eye 31, vertical first slotted eye 31 offers meeting with the first slotted eye 31 of the first axis hole 32, first axis hole 32; Balance plug 5 bottom along iron mandrel to offering the second slotted eye 51, vertical second slotted eye 51 offers the second axis hole 52, second axis hole 52 and the second slotted eye 51 meets.The first hinge hole 71 is offered in one end of lever 7 simultaneously, and the other end of lever 7 offers the second hinge hole 72.One end of lever 7 is inserted in the first slotted eye 31 offered bottom electromagnetic core 3, is alignd by the first axis hole 32 in electromagnetic core 3 with the first hinge hole 71 in lever 7, and passes through the first jointed shaft 33 locking, and what realize bottom lever 7 one end and electromagnetic core 3 is hinged; The other end of lever 7 inserts in the second slotted eye 51 offered bottom balance plug 5, the second axis hole 52 in balance plug 5 is alignd with the second hinge hole 72 in lever 7, and by the second jointed shaft 53 locking, what realize bottom lever 7 other end and balance plug 5 is hinged.The 3rd hinge hole 73 is offered at the middle part of lever 7, and fulcrum 74 is fed through in the 3rd hinge hole 73 hinged with lever 7.Due to the existence of fulcrum 74, lever 7, electromagnetic core 3 and balance plug 5 is forced to run counter to motion.When electromagnetic coil 2 is energized, electromagnetic core 3 is with dynamic equilibrium plug 5 to move to the second place from primary importance by lever 7, the second place be balance plug 5 return spacing to dead bolt and arrive another position.In other words, when electromagnetic coil 2 power-off, closing spring 4 forces the effect end opposite brackets 1 of balance plug 5 to move to restraining position to dead bolt, when electromagnetic coil 2 is energized, electromagnetic core 3 by lever 7 with dynamic equilibrium plug 5 from retracting to the restraining position of dead bolt until to lose dead bolt spacing.
Described electromagnet also comprises a compressing tablet 8, compressing tablet 8 is limited in upper and lower parallel motion in the space between the inwall and the outer wall of bobbin 10 top cover of support 1 top cover, compressing tablet 8 cooperative mechanical lock key uses, and can guarantee in the event of a power failure, realizes mechanical lock and opens or close safe door.
Principle and the course of work of this compressor is introduced in citing below:
The side of the electromagnetic coil 2 of the utility model in existing electromagnet apparatus is provided with a balance plug 5, balance plug 5 is a cylinder axially parallel with electromagnetic core 3, one end of this cylinder is effect end, the other end is hinged end, balance plug 5 slides and is located in support 1, support 1 is provided with a stop surface, and this stop surface is between the effect end and hinged end of balance plug 5; Described closing spring 4 is set on balance plug 5, and one end of closing spring 4 acts on balance plug 5, and the other end acts on described stop surface, and when electromagnetic coil 2 power-off, closing spring 4 forces the effect end opposite brackets 1 of balance plug 5 to move to primary importance; A lever 7 is also provided with between described electromagnetic core 3 and balance plug 5, the elongated end of the hinged electromagnetic core 3 in one end of lever 7, the hinged end of the hinged balance plug 5 of the other end, the middle part of lever 7 is hinged through fulcrum 74 opposite brackets 1, when electromagnetic coil 2 is energized, electromagnetic core 3 is with dynamic equilibrium plug 5 to move to the second place from described primary importance by lever 7.That is first area and the second area of left and right layout will be divided in the support 1 in existing electromagnet; A bobbin 10 is provided with in first area, electromagnetic coil 2 and electromagnetic core 3 is provided with in bobbin 10, electromagnetic core 3 one end is interted in described electromagnetic coil 2, the other end extends to outside bobbin 10 by the first through hole 11 being opened in bobbin 10 bottom, and electromagnetic core 3 one end extended in outside bobbin 10 is elongated end; Balance plug 5, closing spring 4 and baffle plate 6 is provided with in second area, balance plug 5 one end extends to outside support 1 by the second through hole 12 be opened on support 1 top, the other end is fed through the bottom that the third through-hole 13 be opened on baffle plate 6 extends to second area, one end that balance plug 5 extends in outside support 1 is effect end, and the other end is hinged end.Electromagnetic core 3 be arranged in parallel with balance plug 5, and one end of the elongated end hinged lever 7 of electromagnetic core 3, the other end of the hinged end hinged lever 7 of balance plug 5.The utility model produced electromagnetic attraction by being not only used for coordinating electromagnetic coil 2 in conventional electromagnets, but also being used for iron core that fitting closure spring 4 acts on safe bolts and being divided into two iron cores of electromagnetic core 3 and balance plug 5.After electromagnetic coil 2 is energized, the suction that electromagnetic core 3 is subject to electromagnetic coil 2 generation up moves near electromagnetic coil 2.Suction due to electromagnetic coil 2 is greater than the elastic force of closing spring 4, and electromagnetic core 3 is by the hinged balance plug 5 of lever 7, the active force of electromagnetic coil 2 pairs of electromagnetic cores 3 can be passed to balance plug 5, electromagnetic core 3 is made up to move when electromagnetic coil 2, balance plug 5 overcomes closing spring 4 elastic force and down moves, thus realizes electromagnet unlocking function; When electromagnetic coil 2 is cut off the electricity supply, the suction that electromagnetic core 3 is subject to electromagnetic coil 2 disappears, and now closing spring 4 will recover its deformation, forces to balance that plug 5 up moves, the first coil 3 down moves away from electromagnetic coil 2, thus realize electromagnet blocking function.
Be further explained for above the utility model content and be described as follows below:
1, see shown in accompanying drawing 4, described electromagnet also comprises a compressing tablet 8, and described compressing tablet 8 is limited in upper and lower parallel motion in the space between the inwall and the outer wall of bobbin 10 top cover of support 1 top cover.Compressing tablet 8 cooperative mechanical lock key uses, and can guarantee in the event of a power failure, realizes mechanical lock and opens or close safe door.
2, described balance plug 5 top is arranged with axle sleeve, can protect balance plug 5, prevents from balancing mechanical wear when plug 5 contacts with dead bolt.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (4)
1. a safe door vibrationproof electromagnet, comprise support (1), electromagnetic coil (2), electromagnetic core (3) and closing spring (4), electromagnetic coil (2) opposite brackets (1) is fixed, electromagnetic core (3) coordinates with electromagnetic coil (2), and one end that electromagnetic core (3) stretches out electromagnetic coil (2) is elongated end, it is characterized in that: the side of described electromagnetic coil (2) is provided with a balance plug (5), described balance plug (5) is a cylinder axially parallel with electromagnetic core (3), one end of this cylinder is effect end, the other end is hinged end, balance plug (5) is slided and is located in support (1), support (1) is provided with a stop surface, between the effect end that this stop surface is positioned at balance plug (5) and hinged end, described closing spring (4) is set in balance plug (5), one end of closing spring (4) acts on balance plug (5), the other end acts on described stop surface, when electromagnetic coil (2) power-off, closing spring (4) forces the effect end opposite brackets (1) of balance plug (5) to move to primary importance, a lever (7) is also provided with between described electromagnetic core (3) and balance plug (5), the elongated end of the hinged electromagnetic core in one end (3) of lever (7), the hinged end of the hinged balance plug (5) of the other end, the middle part of lever (7) is hinged through fulcrum (74) opposite brackets (1), when electromagnetic coil (2) is energized, electromagnetic core (3) moves to the second place by lever (7) band dynamic equilibrium plug (5) from described primary importance.
2. safe door vibrationproof electromagnet according to claim 1, it is characterized in that: described balance plug (5) also connects a compressing tablet (8), described compressing tablet (8) is set in balance plug (5), balance plug (5) is provided with a limiting section, forces compressing tablet (8) and balance plug (5) geo-stationary.
3. safe door vibrationproof electromagnet according to claim 1, it is characterized in that: the elongated end of described electromagnetic core (3) offers the first axis hole (32) that the first slotted eye (31) and vertical first slotted eye (31) wear, the hinged end of described balance plug (5) offers the second axis hole (52) that the second slotted eye (51) and vertical second slotted eye (51) wear; The elongated end of described electromagnetic core (3) passes through one end of the hinged described lever (7) of the first jointed shaft (33), and the hinged end of described balance plug (5) passes through the other end of the hinged described lever (7) of the second jointed shaft (53).
4. safe door vibrationproof electromagnet according to claim 1, it is characterized in that: described fulcrum (74) is arranged between described electromagnetic core (3) and balance plug (5), and fulcrum (74) is axially perpendicular to the plane at the axle of electromagnetic core (3) and the axle place of balance plug (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630713.1U CN204186206U (en) | 2014-10-28 | 2014-10-28 | Safe door vibrationproof electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630713.1U CN204186206U (en) | 2014-10-28 | 2014-10-28 | Safe door vibrationproof electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186206U true CN204186206U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420630713.1U Expired - Fee Related CN204186206U (en) | 2014-10-28 | 2014-10-28 | Safe door vibrationproof electromagnet |
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| Country | Link |
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| CN (1) | CN204186206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854217A (en) * | 2022-12-27 | 2023-03-28 | 重庆大学 | Six-degree-of-freedom motion platform applying electromagnetic spherical hinge |
-
2014
- 2014-10-28 CN CN201420630713.1U patent/CN204186206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854217A (en) * | 2022-12-27 | 2023-03-28 | 重庆大学 | Six-degree-of-freedom motion platform applying electromagnetic spherical hinge |
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| 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: 20150304 Termination date: 20191028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |