CN209266786U - A kind of magnetic attachment device - Google Patents
A kind of magnetic attachment device Download PDFInfo
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- CN209266786U CN209266786U CN201822182288.5U CN201822182288U CN209266786U CN 209266786 U CN209266786 U CN 209266786U CN 201822182288 U CN201822182288 U CN 201822182288U CN 209266786 U CN209266786 U CN 209266786U
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- magnetic
- magnetic part
- official cap
- decorative pearl
- attachment device
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Abstract
The utility model relates to electronic equipment accessories field, in particular to a kind of magnetic attachment device, including insertion section, interconnecting piece；Insertion section includes both ends, and one end can be inserted into electronic equipment, and the other end is connect with interconnecting piece magnetism；Insertion section includes connection-peg, the decorative pearl on top of an official cap, the first insulating part and the first magnetic part；The decorative pearl on top of an official cap is electrically connected close to connection-peg one end and connection-peg, and the first insulating part is set between the first magnetic part and the decorative pearl on top of an official cap, and decorative pearl on top of an official cap part is set within the first insulating part；Interconnecting piece includes conduct piece, the second insulating part and the second magnetic part；Second insulating part is set between conduct piece and the second magnetic part；When the first magnetic part is connect with the second magnetic part magnetic, the one end of the decorative pearl on top of an official cap far from connection-peg is in contact with a wherein surface for conduct piece and can freely roll on the surface.Contact by the decorative pearl on top of an official cap with conduct piece, and the decorative pearl on top of an official cap can freely roll on the surface of conduct piece, improve the stability that insertion section electrically conducts in opposing connections displacement.
Description
[technical field]
The utility model relates to electronic equipment accessories field, in particular to a kind of magnetic attachment device.
[background technique]
With popularizing for electronic equipment, the electronic equipments such as mobile phone, tablet computer are increasingly tighter for people's lives
Close, many electronic equipments need data line to carry out electron equipment to be charged or transmitted data in life.
In existing magnetic attachment device, connection-peg can be realized by magnetism connection and is detachably connected, and can relative number
It is displaced according to line, but not only the bad but also multiple movement of mobile experience will lead to magnetic connect to connection-peg in displacement process
Structural wear or loosening are connect, so that it is unstable to cause electric current to be connected to, influences the service life of the connection-peg.
[utility model content]
In order to overcome the defect of current existing magnetic attachment device, the utility model provides a kind of magnetic attachment device.
The utility model is in order to solve the above technical problems, one technical solution of offer is as follows: a kind of magnetic attachment device, packet
Include insertion section, interconnecting piece；The insertion section includes both ends, and one end can be inserted into electronic equipment, and the other end and interconnecting piece are magnetic
Connection；The insertion section includes connection-peg, the decorative pearl on top of an official cap, the first insulating part and the first magnetic part；The decorative pearl on top of an official cap close to connection-peg one end with
Connection-peg is electrically connected, and first insulating part is set between first magnetic part and the decorative pearl on top of an official cap, and the decorative pearl on top of an official cap part is set to institute
It states within the first insulating part；The interconnecting piece includes conduct piece, the second insulating part and the second magnetic part；Second insulating part
Between the conduct piece and second magnetic part；When first magnetic part is connect with the second magnetic part magnetic
When, the one end of the decorative pearl on top of an official cap far from the connection-peg is in contact with a wherein surface for the conduct piece and can freely roll on the surface
It is dynamic.
Preferably, the decorative pearl on top of an official cap includes conductive bead and shell, conductive bead expose to the shell and with the conduct piece
Wherein a surface is in contact.
Preferably, the diameter of the conductive bead is greater than the shell in the diameter of the exposed one end of the conductive bead, so that institute
Rotation in the shell can be limited in by stating conductive bead；The decorative pearl on top of an official cap further includes elastic component, and the elastic component is disposed in the housing
And connect or contact the conductive bead and connection-peg, so that the decorative pearl on top of an official cap can be relative to the conduct piece elastic displacement.
Preferably, when first magnetic part connect and contacts with the second magnetic part magnetism, described first is magnetic
Part electrically conducts with second magnetic part.
Preferably, second magnetic part is cyclic structure, and the surface of first magnetic part towards the second magnetic part is set
There is the arc surface being bonded with the second magnetic part, so that the first magnetic part can be rotated relative to the second magnetic part.
Preferably, the conduct piece is conducting ring, and the conducting ring includes periphery, and the conducting ring is equipped with and leads with described
The arc groove of small electric bulb cooperation, the groove are formed from the periphery to the central concave of conducting ring.
Preferably, the interconnecting piece further includes conductive sheet and connecting line, the conducting ring, the conductive sheet and the connection
Line is electrically connected；The interconnecting piece further includes third insulating part, the third insulating part be sheathed on the conducting ring, conductive sheet with
The position that connecting line is electrically connected.
Preferably, the quantity of second insulating part, the conductive sheet and second magnetic part is two, described in two
Second insulating part, the conductive sheet and second magnetic part are symmetrical arranged and are sequentially overlapped centered on the conducting ring
On two opposite joint faces of the conducting ring, two second magnetic parts are connect with the first magnetic part magnetism.
Preferably, the conducting ring is set between two second magnetic parts, and two second magnetic parts are towards institute
The one side for stating insertion section forms a space；First insulating part is relative to first magnetic part close to the one of the interconnecting piece
Side protrusion, the protrusion can protrude within the space, and first insulating part is held in two the second magnetic part shapes
At space between.
Preferably, the insertion section further includes protective case, and the protective case is sheathed on first magnetic part surface, to protect
Protect first magnetic part.
Compared with prior art, magnetic attachment device provided by the utility model, including insertion section, interconnecting piece；It is described to insert
Entering portion includes both ends, and one end can be inserted into electronic equipment, and the other end is connect with interconnecting piece magnetism；The insertion section includes grafting
Head, the decorative pearl on top of an official cap, the first insulating part and the first magnetic part；The decorative pearl on top of an official cap is electrically connected close to connection-peg one end and connection-peg, and described first
Insulating part is set between first magnetic part and the decorative pearl on top of an official cap, and the decorative pearl on top of an official cap part is set within first insulating part；The company
Socket part includes conduct piece, the second insulating part and the second magnetic part；Second insulating part is set to the conduct piece and described the
Between two magnetic parts；When first magnetic part connect and contacts with the second magnetic part magnetism, first magnetic part
It electrically conducts with second magnetic part, the one end of the decorative pearl on top of an official cap far from the connection-peg connects with a wherein surface for the conduct piece
It touches and can freely be rolled on the surface.Contact by the decorative pearl on top of an official cap with conduct piece, and the decorative pearl on top of an official cap can freely roll on the surface of conduct piece
It is dynamic, improve the stability that insertion section electrically conducts in opposing connections displacement.
The decorative pearl on top of an official cap includes conductive bead, elastic component and shell, and the shell carries the conductive bead and elastic component, conductive
Pearl expose to the shell and with the circumference contact, conductive bead and connection-peg described in elastic component elastic connection, so that described
Connection-peg can be relative to the conducting ring elastic displacement.Elastic component is set between conductive bead and connection-peg, so that conductive bead exists
The influence that roughness on periphery is reduced when rolling on periphery, rolls more smooth.
The conduct piece is conducting ring, and the conducting ring includes periphery, and the conducting ring is equipped with matches with the conductive bead
The arc groove of conjunction, the groove are formed from the periphery to the central concave of conducting ring.Arc groove is set, is inserted with improving
Enter stability of the portion in magnetic.
The interconnecting piece further includes conductive sheet and connecting line, and the conducting ring, the conductive sheet and the connecting line are electrical
Connection；The interconnecting piece further includes third insulating part, and the third insulating part is sheathed on the conducting ring, conductive sheet and connecting line
The position of electric connection.By the way that third insulating part is arranged, it can prevent user from accidentally touching the conducting ring or conductive sheet and causing to touch
Electricity improves the safety of magnetic attachment device.
The insertion section further includes protective case, the protective case be arranged with first magnetic part surface, with protection described in
First magnetic part.
[Detailed description of the invention]
Fig. 1 a is the overall structure diagram of magnetic attachment device provided by the utility model.
Fig. 1 b is the enlarged drawing of a-quadrant in Fig. 1 a.
Fig. 2 is the structural schematic diagram of insertion section and interconnecting piece in magnetic attachment device provided by the utility model.
Fig. 3 a is the configuration schematic diagram of insertion section in magnetic attachment device provided by the utility model.
Fig. 3 b is the configuration schematic diagram of interconnecting piece in magnetic attachment device provided by the utility model.
Fig. 4 is the side that conductive bead rolls on conducting ring periphery in magnetic attachment device provided by the utility model
Structural schematic diagram.
Fig. 5 is the structural schematic diagram of third insulating part in magnetic attachment device provided by the utility model.
Description of symbols:
1, magnetic attachment device；11, insertion section；111, connection-peg；112, the decorative pearl on top of an official cap；1121, conductive bead；1122, elastic component；
1123, shell；113, the first insulating part；114, the first magnetic part；115, protective case；
12, interconnecting piece；121, conducting ring；1211, periphery；1212, joint face；122, the second insulating part；123, conductive
Piece；124, the second magnetic part；125, rivet；
13, connecting line；
14, male connector；
15, third insulating part.
[specific embodiment]
In order to make the purpose of this utility model, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to solve
The utility model is released, is not used to limit the utility model.
Incorporated by reference to Fig. 1 a and Fig. 1 b, the utility model provides a kind of magnetic attachment device 1, for serving as adapter, data
Line, USB flash disk wait the electronic product or electronic peripheral product of any progress power supply signal and/or data signal transmission comprising insertion
Portion 11, interconnecting piece 12, connecting line 13 and male connector 14, insertion section 11 connect and realize with 12 magnetism of interconnecting piece and electrically conduct, even
Wiring 13 is electrically connected male connector 14 and interconnecting piece 12.
Incorporated by reference to Fig. 2 and Fig. 3 a, the insertion section 11 includes connection-peg 111, the decorative pearl on top of an official cap 112, the first insulating part 113 and the
One magnetic part 114.First magnetic part 114 is electromagnet, and the first magnetic part 114 is set to the connection-peg 111 close to the connection
12 one end of portion is simultaneously fixed with the connection-peg 111, and the decorative pearl on top of an official cap 112 and connection-peg 111 are electrically connected, and the first insulating part 113 is set to the
Between one magnetic part 114 and the decorative pearl on top of an official cap 112, the first magnetic part 114 and the decorative pearl on top of an official cap 112 are separated, with prevent the first magnetic part 114 with
The decorative pearl on top of an official cap 112 contacts and leads to short circuit.First insulating part 113 is relative to 114 protrusion of the first magnetic part.
Optionally, the insertion section 11 further includes protective case 115, and the protective case 115 is sheathed on first magnetic part
114 surfaces, to protect first magnetic part 114.
Optionally, the connection-peg 111 includes appointing in Micro-USB connector, Type-C connector and Lightning connector
It is a kind of.
Incorporated by reference to Fig. 3 a, the decorative pearl on top of an official cap 112 includes conductive bead 1121 and shell 1123.The shell 1123 is stored described
Conductive bead 1121, conductive bead 1121 expose to the shell 1123.Specifically, the diameter of conductive bead 1121 is greater than the shell
1123 the exposed one end of the conductive bead 1121 diameter turn so that the conductive bead 1121 can be limited in the shell 1123
It is dynamic.
Optionally, the decorative pearl on top of an official cap 112 further includes elastic component 1122.The shell 1123 stores the elastic component 1122.Institute
State elastic component 1122 and connect the conductive bead 1121 and the connection-peg 111, the conductive bead 1121, connection-peg 111 with it is described
Elastic component 1122 is fixedly connected.When conductive bead 1121 is pressurized, conductive bead 1121 makes elastic component 1122 be pressurized and flexible deformation,
Then elastic displacement occurs for conductive bead 1121, so that reducing the influence of roughness on contact surface when conductive bead 1121 rolls, rolls more
It is smooth.
The conductive bead 1121, elastic component 1122 are metallic conduction pearl, metal spring piece, are electrically conducted with realizing.
Incorporated by reference to Fig. 3 a and Fig. 3 b, the interconnecting piece 12 includes conduct piece, the second insulating part 122, conductive sheet 123 and the
Two magnetic parts 124, specifically, the conduct piece are conducting ring 121, and the second magnetic part 124 is electromagnet.Conducting ring 121, conduction
Piece 123 and the connecting line 13 are electrically connected, and second insulating part 122 is set to the conducting ring 121 and the conductive sheet 123
Between, short circuit is prevented so that conducting ring 121 and conductive sheet 123 is isolated.It is remote that second magnetic part 124 is set to the conductive sheet 123
From 121 side of conducting ring, to be connect with the conductive sheet 123, electrically conducted with realizing.
When first magnetic part 114 connect and contacts with 124 magnetism of the second magnetic part, first magnetic part
114 electrically conduct with second magnetic part 124.
Specifically, first magnetic part 114 is equipped with and second with the magnetic surface connecting of second magnetic part 124
The circumferential surface of the compatible cambered surface of magnetic part 124, the cambered surface of the first magnetic part 114 and the second magnetic part 124 fits, to increase
The area for adding the first magnetic part 114 to connect with the second magnetic part 124, so that the first magnetic part 114 and the second magnetic part 124 are even
It is more stable when connecing.
Optionally, the second insulating part 122 and the second magnetic part 124 are cyclic structure, with the conducting ring 121, lead
Electric piece 123 is more attractive when connecting.
Optionally, second insulating part 122, conductive sheet 123 and the second magnetic part 124 are relative to the conducting ring
121 are symmetrically arranged with identical structure, then two second magnetic parts 124 can adsorb the first magnetic part 114 jointly, increase by the
Stability when one magnetic part 114 is connect with the second magnetic part 124.Conducting ring 121, the second insulating part 122, conductive sheet 123
Between two second magnetic parts 124, then gap is formed between two second magnetic parts 124.
Optionally, the bulge-structure of first insulating part 113 can be contacted with second magnetic part 124, and be held in
On second magnetic part 124, specifically, the bulge-structure can protrude into the gap that two second magnetic parts 124 are formed
Between, by the insertion section 11 by the first insulating part 113 be held in gap that two second magnetic parts 124 are formed it
Between, to improve the stability that insertion section 11 is connect with interconnecting piece 12.
The interconnecting piece 12 further includes two rivets 125, and two rivets 125 pass through conduction from opposite both direction
Ring 121, the second insulating part 122, conductive sheet 123 and 124 center of the second magnetic part simultaneously mutually fasten, with the fixation conducting ring
121, the second insulating part 122, conductive sheet 123 and the second magnetic part 124.
Incorporated by reference to Fig. 3 a and Fig. 3 b, the conducting ring 121 includes orthogonal periphery 1211 and joint face 1212, circle
Circumferential surface 1211 is located at 121 outer surface of conducting ring, and exposed in the gap that the first magnetic part 114 and the second magnetic part 124 are formed.
Joint face 1212 is contacted with second insulating part 122, and the periphery 1211 is contacted with the conductive bead 1121, to realize electricity
Property conducting.First magnetic part 114 with second magnetic part 124 is magnetic connect, with the fixation insertion section 11 in described
On interconnecting piece 12, so that insertion section 11 electrically conducts with interconnecting piece 12.
The insertion section 11 can be rotated by the conductive bead 1121 relative to the conducting ring 121, in rotation process, be led
Small electric bulb 1121 is by the elastic force of elastic component 1122, so that the periphery 1211 with the conducting ring 121 always of conductive bead 1121
Contact.
Referring to Fig. 4, optionally, the periphery 1211 of the conducting ring 121 is equipped with arc groove, and the arc groove is
Periphery 1211 is formed to the central concave of conducting ring 121, and the conductive bead 1121 can be entrenched in the groove and along recessed
Slot rotation, to limit the motion profile of the conductive bead 1121, improves the stability to electrically conduct.
Incorporated by reference to Fig. 3 b and Fig. 5, the magnetic attachment device 1 further includes third insulating part 15, the third insulating part 15
Set on the conducting ring 121, the link position of conductive sheet 123 and the connecting line 13, and the link position is coated, to prevent
The link position is exposed, avoids user accidentally touching conductive sheet 123 or the caused electric shock of conducting ring 121, reaches protection user's
Effect.
When energization, electric current flows through conducting ring 121, the decorative pearl on top of an official cap 112 from connecting line 13 and flow to connection-peg 111, and from connection-peg
111 successively flow to the first magnetic part 114, the second magnetic part 124, conductive sheet 123, flow out finally by connecting line 13, realize electricity
Flow back to road.
In some other embodiment, the first magnetic part 114 does not serve as electrode, Ye Jiqi with second magnetic part 124
Middle one is magnet, and another one is the material that can be adsorbed by magnet, and the magnetic attachment device 1 can be filled by the way that external conductive casing is arranged
Work as electrode, realization electrically conducts.
The course of work of magnetic attachment device 1 is as follows: by first magnetic part 114 and 124 magnetic of the second magnetic part
Property connection, while the conductive bead 1121 being contacted with the periphery 1211 of conducting ring 121, the insertion section 11 can be by described
Conductive bead 1121 is rotated relative to the conducting ring 121, completes the installation of insertion section 11.Insertion section 11 and male connector 14 are connected respectively
Different electronic equipments is connect, to transmit data.Or insertion section 11 connects electronic equipment, male connector 14 connects charger, with electron
Equipment charge.
When needing replacing connection-peg 111, the insertion section 11 is extracted, makes the first magnetic part 114 and second magnetism
Part 124 separates, and selects the connection-peg 111 of needs, and repeat the installation steps of above-mentioned insertion section 11.
Compared with prior art, magnetic attachment device provided by the utility model, including insertion section, interconnecting piece；It is described to insert
Entering portion includes both ends, and one end can be inserted into electronic equipment, and the other end is connect with interconnecting piece magnetism；The insertion section includes grafting
Head, the decorative pearl on top of an official cap, the first insulating part and the first magnetic part；The decorative pearl on top of an official cap is electrically connected close to connection-peg one end and connection-peg, and described first
Insulating part is set between first magnetic part and the decorative pearl on top of an official cap, and the decorative pearl on top of an official cap part is set within first insulating part；The company
Socket part includes conduct piece, the second insulating part and the second magnetic part；Second insulating part is set to the conduct piece and described the
Between two magnetic parts；When first magnetic part connect and contacts with the second magnetic part magnetism, first magnetic part
It electrically conducts with second magnetic part, the one end of the decorative pearl on top of an official cap far from the connection-peg connects with a wherein surface for the conduct piece
It touches and can freely be rolled on the surface.Contact by the decorative pearl on top of an official cap with conduct piece, and the decorative pearl on top of an official cap can freely roll on the surface of conduct piece
It is dynamic, improve the stability that insertion section electrically conducts in opposing connections displacement.
The decorative pearl on top of an official cap includes conductive bead, elastic component and shell, and the shell carries the conductive bead and elastic component, conductive
Pearl expose to the shell and with the circumference contact, conductive bead and connection-peg described in elastic component elastic connection, so that described
Connection-peg can be relative to the conducting ring elastic displacement.Elastic component is set between conductive bead and connection-peg, so that conductive bead exists
The influence that roughness on periphery is reduced when rolling on periphery, rolls more smooth.
The conduct piece is conducting ring, and the conducting ring includes periphery, and the conducting ring is equipped with matches with the conductive bead
The arc groove of conjunction, the groove are formed from the periphery to the central concave of conducting ring.Arc groove is set, is inserted with improving
Enter stability of the portion in magnetic.
The interconnecting piece further includes conductive sheet and connecting line, and the conducting ring, the conductive sheet and the connecting line are electrical
Connection；The interconnecting piece further includes third insulating part, and the third insulating part is sheathed on the conducting ring, conductive sheet and connecting line
The position of electric connection.By the way that third insulating part is arranged, it can prevent user from accidentally touching the conducting ring or conductive sheet and causing to touch
Electricity improves the safety of magnetic attachment device.
The insertion section further includes protective case, the protective case be arranged with first magnetic part surface, with protection described in
First magnetic part.
The above is only the utility model preferred embodiments, are not intended to limit the utility model, all practical new at this
Made any modification within type principle, equivalent replacement and improvement etc. should all be comprising within the protection scope of the utility model.
Claims (10)
1. a kind of magnetic attachment device, it is characterised in that: including insertion section, interconnecting piece；
The insertion section includes both ends, and one end can be inserted into electronic equipment, and the other end is connect with interconnecting piece magnetism；
The insertion section includes connection-peg, the decorative pearl on top of an official cap, the first insulating part and the first magnetic part；The decorative pearl on top of an official cap is close to connection-peg one end and inserts
Connector is electrically connected, and first insulating part is set between first magnetic part and the decorative pearl on top of an official cap, and the decorative pearl on top of an official cap part is set to described
Within first insulating part；
The interconnecting piece includes conduct piece, the second insulating part and the second magnetic part；Second insulating part is set to the conduction
Between part and second magnetic part；
When first magnetic part is connect with the second magnetic part magnetic, the one end of the decorative pearl on top of an official cap far from the connection-peg with it is described
A wherein surface for conduct piece is in contact and can freely roll on the surface.
2. magnetic attachment device as described in the appended claim 1, it is characterised in that: the decorative pearl on top of an official cap includes conductive bead and shell, conduction
Pearl exposes to the shell and is in contact with a wherein surface for the conduct piece.
3. magnetic attachment device as stated in claim 2, it is characterised in that: the diameter of the conductive bead is greater than the shell and exists
The diameter of described exposed one end of conductive bead, so that the conductive bead can be limited in rotation in the shell；
The decorative pearl on top of an official cap further includes elastic component, and the elastic component is disposed in the housing and connects or contact the conductive bead and grafting
Head, so that the decorative pearl on top of an official cap can be relative to the conduct piece elastic displacement.
4. magnetic attachment device as described in the appended claim 1, it is characterised in that: when first magnetic part and second magnetism
When part magnetism is connected and contacted, first magnetic part electrically conducts with second magnetic part.
5. magnetic attachment device as described in the appended claim 1, it is characterised in that: second magnetic part is cyclic structure, described
First magnetic part is equipped with the arc surface being bonded with the second magnetic part towards the surface of the second magnetic part, so that the first magnetic part can phase
Second magnetic part is rotated.
6. magnetic attachment device as stated in claim 2, it is characterised in that: the conduct piece is conducting ring, the conducting ring
Including periphery, the conducting ring is equipped with the arc groove cooperated with the conductive bead, and the groove is by the periphery guide
The central concave of electric ring is formed.
7. magnetic attachment device as recited in claim 6, it is characterised in that: the interconnecting piece further includes conductive sheet and connect
Line, the conducting ring, the conductive sheet and the connecting line are electrically connected；
The interconnecting piece further includes third insulating part, and the third insulating part is sheathed on the conducting ring, conductive sheet and connecting line
The position of electric connection.
8. magnetic attachment device as recited in claim 7, it is characterised in that: second insulating part, the conductive sheet and institute
The quantity for stating the second magnetic part is two, and two second insulating parts, the conductive sheet and second magnetic part are with institute
It states and is symmetrical arranged centered on conducting ring and is sequentially overlapped on two opposite joint faces of the conducting ring, two described second
Magnetic part is connect with the first magnetic part magnetism.
9. magnetic attachment device as claimed in claim 8, it is characterised in that: the conducting ring is set to two second magnetism
Between part, the one side of two second magnetic parts towards the insertion section forms a space；
For first insulating part relative to first magnetic part close to the side of interconnecting piece protrusion, which can protrude into institute
It states within space, first insulating part is held between the space that two second magnetic parts are formed.
10. the magnetic attachment device as described in any one of claim 1-9, it is characterised in that: the insertion section further includes protection
Set, the protective case is sheathed on first magnetic part surface, to protect first magnetic part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822182288.5U CN209266786U (en) | 2018-12-24 | 2018-12-24 | A kind of magnetic attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822182288.5U CN209266786U (en) | 2018-12-24 | 2018-12-24 | A kind of magnetic attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209266786U true CN209266786U (en) | 2019-08-16 |
Family
ID=67561014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822182288.5U Active CN209266786U (en) | 2018-12-24 | 2018-12-24 | A kind of magnetic attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209266786U (en) |
-
2018
- 2018-12-24 CN CN201822182288.5U patent/CN209266786U/en active Active
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