CN108379856A - A kind of active connection and its toy with the active connection - Google Patents
A kind of active connection and its toy with the active connection Download PDFInfo
- Publication number
- CN108379856A CN108379856A CN201810051786.8A CN201810051786A CN108379856A CN 108379856 A CN108379856 A CN 108379856A CN 201810051786 A CN201810051786 A CN 201810051786A CN 108379856 A CN108379856 A CN 108379856A
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- shell
- cylindrical
- active connection
- toy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H33/00—Other toys
- A63H33/04—Building blocks, strips, or similar building parts
- A63H33/046—Building blocks, strips, or similar building parts comprising magnetic interaction means, e.g. holding together by magnetic attraction
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H33/00—Other toys
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H33/00—Other toys
- A63H33/04—Building blocks, strips, or similar building parts
- A63H33/10—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements
- A63H33/106—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements with rotation, e.g. of bayonet type
Abstract
The present invention relates to a kind of active connection and with the toy of the active connection.Active connection has first shell, gear mass, magnet and second shell.Pass through special matching relationship so that first shell, gear mass, magnet and second shell form entirety.It is set in toy when by the active connection, random demolition, installation can be carried out between the different components of toy, and can mutually be rotated between different components, improve the recreational of toy, the intellectual development of children can be developed to a greater extent.
Description
Technical field
The present invention relates to connector technical fields, and in particular to a kind of for the active connection of toy and with the work
The toy of follower link.
Background technology
In modern society, the children intelligence development of early stage causes the attention of more and more people, people also increasingly to be paid attention to
The early intellectual development of children.In order to develop the intelligence of children, there is the toy of opposite movable part to be widely used.It is existing
, the object for appreciation with opposite movable part is with classifications such as building blocks, form deformation toys.However, in existing building blocks type toy, building blocks one
As be provided with tenon and slot, connected by way of tongue and groove fit.This connection type has the following disadvantages：Use a period of time
Afterwards, tenon and slot will appear deformation, cause not fixing after grafting or grafting；In addition, for the type toy, due to tenon and
It is immovable fitting between slot, can not realizes relative rotation connection, thus not proper movable form deformation toy.Cause
And relatively movable component becomes urgently to be resolved hurrily in toy art between providing a kind of each building block that can ensure toy
Problem.
Invention content
The purpose of the present invention be exactly in order to overcome above-mentioned the problems of the prior art and provide a kind of active connection and its
Toy with the active connection.
The purpose of the present invention can be achieved through the following technical solutions：A kind of active connection is used for toy, and
Including：
First shell comprising the first cylindrical shell and the second cylindrical shell, first cylindrical shell and the second cylindrical shell are to have
The cylindrical housings of cylindrical cavity, and the central axis weight of the central axis of second cylindrical shell and second cylindrical shell
Close, the first cylindrical outer wall of first cylindrical shell be equipped at least a pair from the top of first cylindrical shell along its axial direction
Extend and be located at the first opening of the first radial opposite end of first cylindrical shell, the bottom of first cylindrical shell
End is equipped with the first end cover in circular ring shape, and the outer diameter of the first end cover is corresponding with the outer diameter of the first cylindrical shell, and described the
The internal diameter of one end cap is corresponding with the internal diameter of the second cylindrical shell, and the inside of first cylindrical outer wall is equipped at least two edges
The first snap fit tabs are extended radially inwardly, first snap fit tabs are roughly triangular along the axial section, close
One end of the bottom end of first cylindrical shell is equipped with the first catch surface；It is set on second cylindrical outer wall of second cylindrical shell
Have it is at least a pair of from the top of second cylindrical shell along described axially extending and be located at the second of second cylindrical shell
Second opening of radial opposite end, second radial direction are mutually perpendicular to first radial direction；
Gear mass is the cylindrical housings with inner cavity, and the gear mass and first cylindrical shell are coaxially arranged, is accommodated
In in the cylindrical cavity of second cylindrical shell, the bottom face of the gear mass is in circular ring shape, and the bottom face is along institute
It states and is axially provided with teeth, the third cylindrical outer wall of the gear mass is equipped with what at least a pair was radially extended along described second
First limit protrusion, first limit protrusion coordinate with second opening, and the teeth can be revealed from the first end cover
Go out；
Magnet is contained in the inner cavity of the gear mass；
Second shell comprising third cylindrical shell and at least two engaging columns, and with the bottom end pair with first cylindrical shell
The first end and second end corresponding with the top of the first cylindrical shell answered, the third cylindrical shell are with cylindrical cavity
Cylindrical housings, and the second end is equipped with second end cover, and the inner wall of the third cylindrical shell is equipped at least two in an axial direction
Distribution, and the second limit protrusion extended from the second end cover, second limit protrusion coordinate with first opening, institute
Engaging column is stated along the axial setting, one end is located at the second end cover, and the other end of the engaging column has the second engaging
Protrusion, second snap fit tabs are roughly triangular along the axial section, the bottom end far from first cylindrical shell
One end have can with first catch surface coordinate the second catch surface.
Preferably, the second end cover is axially arranged with cylinder groove described in, the groove is equipped with along described
First is radially provided with limit tablet, and the limit tablet is towards the end face of the second end and the second end cover towards the second end
End face it is concordant；Two pairs are equipped on the top of the gear mass with a diameter of centrosymmetric recessed where first radial direction
Mouthful, a pair of recess is located at the one end of the diameter, and recess described in another pair is located at the another side of the diameter.
Preferably, the axial position opposite with the engaging column described in the first end cover upper edge is equipped with multiple first sectors
Through-hole.
Preferably, multiple second fan-shaped pylones are axially arranged with described in the second end cover upper edge, it is fan-shaped by described second
Through-hole can observe the engaging column.
Preferably, the second end of the second end cover is axially arranged with third limit protrusion described in.
Preferably, the end face of the first end of the second shell is equipped with radially outwardly extending extension.
Preferably, the first shell, second shell, gear mass are plastic part.
Further, the present invention also provides a kind of toys with above-mentioned active connection, wherein the active connection
It is embedded at the end face for stating toy.
Preferably, the toy also has the fixing sleeve Nian Jie with the outer surface of the first shell, by flexible material
It is made.
Preferably, the flexible material is foamed plastic.
On the basis of common knowledge of the art, above-mentioned each optimum condition can be combined arbitrarily to get each preferable reality of the present invention
Example.
The active connection of the present invention has first shell, gear mass, magnet and second shell.It is closed by special cooperation
System so that first shell, gear mass, magnet and second shell form entirety.It is set in toy when by the active connection, toy
Different components between can carry out random demolition, installation, and can mutually be rotated between different components, improve the recreational of toy,
The intellectual development of children can be developed to a greater extent.
Description of the drawings
Fig. 1 is the stereogram of the first shell of presently preferred embodiments of the present invention.
Fig. 2 is the stereogram of another angle of the first shell of presently preferred embodiments of the present invention.
Fig. 3 is the stereogram of the gear mass of presently preferred embodiments of the present invention.
Fig. 4 is the stereogram of the second shell of presently preferred embodiments of the present invention.
Fig. 5 is the stereogram of another angle of the second shell of presently preferred embodiments of the present invention.
Fig. 6 is the explosive view of presently preferred embodiments of the present invention.
Label in attached drawing is schematically as follows：
1：First shell
2：Gear mass
3：Magnet
4：Second shell
5：First cylindrical shell
6：Second cylindrical shell
7：First opening
8：First end cover
9：First snap fit tabs
10：Second opening
11：Teeth
12：First limit protrusion
13：Engage column
14：Second end cover
15：Second limit protrusion
16：Second snap fit tabs
17：Groove
18：Limit tablet
19：First recess
20：Second recess
21：First fan-shaped pylone
22：Second fan-shaped pylone
23：Extension
24：Third cylindrical shell
91：First catch surface
92：Second catch surface
Specific implementation mode
With reference to the accompanying drawings of the specification, further the preferred embodiment of the present invention is described in detail, description below
To be illustrative, not limitation of the present invention, other any are still fallen within similar to situation among protection scope of the present invention.
In specific descriptions below, the term of directionality, such as "left", "right", "upper", "lower", "front", "rear", " top
End ", " bottom end " etc., the direction described in refer to the attached drawing use.The component of the embodiment of the present invention can be placed in a variety of different
Direction, the term of directionality are for illustrative purposes and not restrictive.
As shown in figures 1 to 6, a kind of active connection is used for toy, and includes first shell 1, gear mass 2, magnet 3
With second shell 4.First shell 1 includes the first cylindrical shell 5 and the second cylindrical shell 6.First cylindrical shell 5 and the second cylindrical shell 6 are
For the cylindrical housings with cylindrical cavity, and the central axis weight of the central axis of the second cylindrical shell 6 and the second cylindrical shell 6
It closes.First cylindrical outer wall of the first cylindrical shell 5 be equipped with it is at least a pair of it is axially extending along its from the top of the first cylindrical shell 5,
And it is located at the first opening 7 of the first radial opposite end of the first cylindrical shell 5.The bottom end of first cylindrical shell 5 is equipped in circle
The first end cover 8 of annular, the outer diameter of first end cover 8 is corresponding with the outer diameter of the first cylindrical shell 5, the internal diameter of first end cover 8 and second
The internal diameter of cylindrical shell 6 corresponds to.The inside of first cylindrical outer wall is equipped at least two radially inwardly extending first snap fit tabs
9, the section of the first snap fit tabs 9 in an axial direction is roughly triangular, and one end close to the bottom end of the first cylindrical shell 5 is equipped with first
Catch surface 91.Second cylindrical outer wall of the second cylindrical shell 6 be equipped at least a pair from the top of the second cylindrical shell 6 in an axial direction
Extend and be located at the second opening 10 of the second radial opposite end of the second cylindrical shell 6, the second radial direction and the first radial phase
It is mutually vertical.Gear mass 2 is the cylindrical housings with inner cavity, and gear mass 2 and the first cylindrical shell 5 are coaxially arranged, is contained in the
In the cylindrical cavity of two cylindrical shells 6.The bottom face of gear mass 2 is in circular ring shape, and bottom face is axially disposed teeth 11.Gear
The third cylindrical outer wall of body 2 is equipped at least a pair of the first limit protrusion 12 to extend radially outwardly along second, the first limit
10 cooperation of protrusion 12 and the second opening, teeth 11 can be exposed from first end cover 8.Magnet 3 is contained in the inner cavity of gear mass 2.
Second shell 4 includes that third cylindrical shell 24 and at least two engages column 13.Second shell 4 has the bottom end with the first cylindrical shell 5
Corresponding first end and second end corresponding with the top of the first cylindrical shell 5.Third cylindrical shell 24 is with cylindrical cavity
Cylindrical housings, and second end is equipped with second end cover 14.The inner wall of third cylindrical shell 24 is axially distributed equipped at least two, and
The second limit protrusion 15 extended from second end cover 14.Second limit protrusion 15 and first opening, 7 cooperation.Engage column 13 in an axial direction
Setting, one end are located at second end cover 14, and the other end of engaging column 13 has the second snap fit tabs 16,16 edge of the second snap fit tabs
Axial section is roughly triangular, and one end of the bottom end far from the first cylindrical shell 5 has can be with the first catch surface 91
Coordinate the second catch surface 92.In use, the first limit protrusion 12 of gear mass 2 is directed at the second of the second cylindrical shell 6 first
Opening 10, and slid axially along the second opening 10 until teeth 11 are exposed from first end cover 8；Magnet 3 is put into gear mass 2
Inner cavity in；First snap fit tabs 9 of second shell 4 are directed to the first opening 7 of the first cylindrical shell 5, while it is right to engage column 13
Accurate first snap fit tabs 9, the second shell that slides axially 4, until the first snap fit tabs 9 and the second snap fit tabs 16 mutually form
Snap-fit relationship, the first catch surface 91 and the second catch surface 92 have fit together.In this construction, the first limit protrusion 12 with
Second opening 10 cooperates, to ensure will not to occur mutually to rotate between gear mass 2 and first shell 1；First opening 7 with
Second limit protrusion 15 coordinates, to ensure will not to occur mutually to rotate between second shell 4 and first shell 1；First engaging
Protrusion 9 and the second snap fit tabs 16 cooperate, to ensure that second shell 4 is moved axially relative to first shell 1；The
The top end face of two end caps 14 and gear mass 2 cooperates, while the first limit protrusion 12 and second opening 10 cooperates, to
Limit the axial movement of gear mass 2.Connector made of constructing by this method, first shell 1, gear mass 2, magnet 3 and second
It is fitted close between shell 4.Two connectors close to when, the magnet 3 of the two attracts each other and forces the teeth of respective bottom face
11 intermeshing, at this point, can make connector relatively rotate and still in opposite connection status.When the movable part is embedded at object for appreciation
When having end face, can both it be relatively rotated between each component of toy.In addition, be applied more than the strength of the attraction of magnet 3 in
When toy, you can to disassemble toy, then further according to needing to be assembled into miscellaneous toy.Preferably by the company of the present invention
Fitting is set to building blocks.It should be noted that in the present invention, " section is roughly triangular " refers to that section is triangle, or
The shape one or more side in triangle being set as after arc, or triangle one or more angle is set as to the shape of arc
Shape etc..
Preferably, second end cover 14 is equipped with cylinder groove 17 in an axial direction, groove 17 is equipped with to be set along the first radial direction
There are limit tablet 18, limit tablet 18 concordant with the end face of second end cover 14 towards second end towards the end face of second end；In gear mass 2
Top be equipped with two pairs with first a diameter of centrosymmetric recess where radial, wherein a pair of of recess（First recess
19）Positioned at the one end of diameter, another pair recess（Second recess 20）Positioned at the another side of diameter.
Preferably, position opposite with column 13 is engaged in an axial direction in first end cover 8 is equipped with multiple first fan-shaped pylones 21.It is logical
Crossing the first fan-shaped pylone 21 contributes in combined moving connector, from the bottom end of first shell 1 check engaging column 13 whether with
First snap fit tabs 9 are aligned, to ensure that assembly is smooth；It can ensure when disassembling active connection simultaneously, from first sector
Through-hole 21 is inserted into tool, so that the second snap fit tabs 16 and the first snap fit tabs 9 are detached from.
Preferably, 14 upper edge of second end cover is axially arranged with multiple second fan-shaped pylones 22, pass through 22 energy of the second fan-shaped pylone
Enough observation engaging columns 13.Second fan-shaped pylone 22 helps, in combined moving connector, to check from the second end of second shell 4
Whether engaging column 13 is aligned with the first snap fit tabs 9.
Since plastics have lightweight, and has the characteristics that certain elasticity, preferably by first shell 1, second shell 4, tooth
Wheel body 2 is set as plastics and is made.
Since the toys such as building blocks are mostly hard material, in order to ensure that active connection can be embedded at the end of toy securely
Face is further provided with fixing sleeve Nian Jie with the outer surface of first shell 1, and being fabricated from a flexible material in of the invention.Due to solid
Fixed set is flexible material, thus is being fixed constantly, can be embedded in toy with Compressive activities connector, this can ensure to be flexibly connected
It is firmly fixed in toy.
Although not showed that in attached drawing, optionally, the second end of second end cover 14 may also be further provided in an axial direction
Three limit protrusions.By means of third limit protrusion, active connection can be made more firmly to be integrally fixed with fixing sleeve
Preferably, the end face of the first end of second shell 4 is equipped with radially outwardly extending extension 23.By this method,
Extension 23 can be stuck in the end face of toy, it is ensured that during installation activity connector or during using toy,
Active connection will not be squeezed completely to interior, and teeth 11 can not be exposed.
Further, the present invention also provides a kind of toy with above-mentioned active connection, wherein active connection is embedded
In the end face for stating toy.
Preferably, flexible material is foamed plastic.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of active connection, which is characterized in that the active connection is used for toy comprising：
First shell comprising the first cylindrical shell and the second cylindrical shell, first cylindrical shell and the second cylindrical shell are to have
The cylindrical housings of cylindrical cavity, and the central axis weight of the central axis of second cylindrical shell and second cylindrical shell
Close, the first cylindrical outer wall of first cylindrical shell be equipped at least a pair from the top of first cylindrical shell along its axial direction
Extend and be located at the first opening of the first radial opposite end of first cylindrical shell, the bottom of first cylindrical shell
End is equipped with the first end cover in circular ring shape, and the outer diameter of the first end cover is corresponding with the outer diameter of the first cylindrical shell, and described the
The internal diameter of one end cap is corresponding with the internal diameter of the second cylindrical shell, and the inside of first cylindrical outer wall is equipped at least two edges
The first snap fit tabs are extended radially inwardly, first snap fit tabs are roughly triangular along the axial section, close
One end of the bottom end of first cylindrical shell is equipped with the first catch surface；It is set on second cylindrical outer wall of second cylindrical shell
Have it is at least a pair of from the top of second cylindrical shell along described axially extending and be located at the second of second cylindrical shell
Second opening of radial opposite end, second radial direction are mutually perpendicular to first radial direction；
Gear mass is the cylindrical housings with inner cavity, and the gear mass and first cylindrical shell are coaxially arranged, is accommodated
In in the cylindrical cavity of second cylindrical shell, the bottom face of the gear mass is in circular ring shape, and the bottom face is along institute
It states and is axially provided with teeth, the third cylindrical outer wall of the gear mass is equipped at least a pair and radially outward prolongs along described second
The first limit protrusion stretched, first limit protrusion coordinate with second opening, and the teeth can be from the first end
Lid exposes；
Magnet is contained in the inner cavity of the gear mass；
Second shell comprising third cylindrical shell and at least two engaging columns, and with the bottom end pair with first cylindrical shell
The first end and second end corresponding with the top of the first cylindrical shell answered, the third cylindrical shell are with cylindrical cavity
Cylindrical housings, and the second end is equipped with second end cover, and the inner wall of the third cylindrical shell is equipped at least two in an axial direction
Distribution, and the second limit protrusion extended from the second end cover, second limit protrusion coordinate with first opening, institute
Engaging column is stated along the axial setting, one end is located at the second end cover, and the other end of the engaging column has the second engaging
Protrusion, second snap fit tabs are roughly triangular along the axial section, the bottom end far from first cylindrical shell
One end have can with first catch surface coordinate the second catch surface.
2. active connection according to claim 1, which is characterized in that the second end cover is axially arranged with described in circle
Cylindrical groove, the groove is equipped with is radially provided with limit tablet along described first, and the limit tablet is towards the second end
End face it is concordant with the end face of the second end cover towards the second end；Two pairs are equipped on the top of the gear mass with described
A diameter of centrosymmetric recess at the first radial place, a pair of recess are located at the one end of the diameter, another pair institute
State the another side that recess is located at the diameter.
3. active connection according to claim 1 or 2, which is characterized in that described in the first end cover upper edge it is axial with
The opposite position of the engaging column is equipped with multiple first fan-shaped pylones.
4. active connection according to any one of claim 1-3, which is characterized in that described in the second end cover upper edge
It is axially arranged with multiple second fan-shaped pylones, the engaging column can be observed by second fan-shaped pylone.
5. active connection according to claim 2, which is characterized in that the second end of the second end cover is described in
It is axially arranged with third limit protrusion.
6. active connection according to claim 1, which is characterized in that set on the end face of the first end of the second shell
There is radially outwardly extending extension.
7. active connection according to claim 1, which is characterized in that the first shell, second shell, gear mass are
Plastic part.
8. there is a kind of toy active connection, the active connection as described in any one of claim 1-7 to be embedded at
The end face for stating toy.
9. toy according to claim 8, which is characterized in that the toy also has the outer surface with the first shell
The fixing sleeve of bonding, is fabricated from a flexible material.
10. toy according to claim 9, which is characterized in that the flexible material is foamed plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051786.8A CN108379856B (en) | 2018-01-19 | 2018-01-19 | Movable connecting piece and toy with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051786.8A CN108379856B (en) | 2018-01-19 | 2018-01-19 | Movable connecting piece and toy with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108379856A true CN108379856A (en) | 2018-08-10 |
| CN108379856B CN108379856B (en) | 2020-10-23 |
Family
ID=63077307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810051786.8A Active CN108379856B (en) | 2018-01-19 | 2018-01-19 | Movable connecting piece and toy with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108379856B (en) |
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| EP1184052A3 (en) * | 2000-08-28 | 2003-07-16 | Huang-Tung Chang | Device for effecting resistance |
| CN101072963A (en) * | 2004-09-21 | 2007-11-14 | 北京维艾迪汽车科技有限公司 | Slipper deformable tooth stepless meshing adjustable gear |
| CN201006320Y (en) * | 2006-12-22 | 2008-01-16 | 佐崎企业有限公司 | Egg type container |
| CN201088869Y (en) * | 2007-09-28 | 2008-07-23 | 盛邦强点电子(深圳)有限公司 | Action packaged toy |
| KR100957697B1 (en) * | 2009-09-07 | 2010-05-12 | 김자 | Skin massage machine |
| CN101850186A (en) * | 2009-03-30 | 2010-10-06 | 爱德托益有限公司 | Be used to construct the building blocks of toy |
| JP5173636B2 (en) * | 2008-07-14 | 2013-04-03 | トヨタ自動車株式会社 | Rotating electric machine |
| KR200483536Y1 (en) * | 2016-02-19 | 2017-05-26 | 정 석 윤 | Side block of block toy equipped with combination member |
| CN208176978U (en) * | 2018-01-19 | 2018-12-04 | 漳州市安莉高分子科技股份有限公司 | A kind of magnetic multifunctional building block of tool |
-
2018
- 2018-01-19 CN CN201810051786.8A patent/CN108379856B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1184052A3 (en) * | 2000-08-28 | 2003-07-16 | Huang-Tung Chang | Device for effecting resistance |
| CN101072963A (en) * | 2004-09-21 | 2007-11-14 | 北京维艾迪汽车科技有限公司 | Slipper deformable tooth stepless meshing adjustable gear |
| CN201006320Y (en) * | 2006-12-22 | 2008-01-16 | 佐崎企业有限公司 | Egg type container |
| CN201088869Y (en) * | 2007-09-28 | 2008-07-23 | 盛邦强点电子(深圳)有限公司 | Action packaged toy |
| JP5173636B2 (en) * | 2008-07-14 | 2013-04-03 | トヨタ自動車株式会社 | Rotating electric machine |
| CN101850186A (en) * | 2009-03-30 | 2010-10-06 | 爱德托益有限公司 | Be used to construct the building blocks of toy |
| KR100957697B1 (en) * | 2009-09-07 | 2010-05-12 | 김자 | Skin massage machine |
| KR200483536Y1 (en) * | 2016-02-19 | 2017-05-26 | 정 석 윤 | Side block of block toy equipped with combination member |
| CN208176978U (en) * | 2018-01-19 | 2018-12-04 | 漳州市安莉高分子科技股份有限公司 | A kind of magnetic multifunctional building block of tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108379856B (en) | 2020-10-23 |
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