CN108644188A - One kind quickly changeing connector - Google Patents
One kind quickly changeing connector Download PDFInfo
- Publication number
- CN108644188A CN108644188A CN201810660474.7A CN201810660474A CN108644188A CN 108644188 A CN108644188 A CN 108644188A CN 201810660474 A CN201810660474 A CN 201810660474A CN 108644188 A CN108644188 A CN 108644188A
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- China
- Prior art keywords
- pin
- axis
- hole
- bolt
- shell
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 238000005192 partition Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010061258 Joint lock Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
- F16B1/04—Means for securing elements of mechanisms after operation disengaged by movement of the actuating member of the element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses one kind quickly changeing connector, which is characterized in that including shell, turntable, transmission shaft, connecting rod, bolt, elastic element;The shell includes pin hole, and the pin hole is set to the shell left end;The turntable is movably installed in the shell right end;The transmission shaft is movably installed in the enclosure, and the center transmission shaft axis is overlapped with the housing central axis;The transmission shaft includes swing rod, and the swing rod is fixedly connected with the left end face of the transmission shaft, and the transmission shaft right end is fixedly connected with the turntable;The bolt is movably installed in the pin hole, and the bolt constitutes sliding pair with the pin hole;The swing rod, the connecting rod and the bolt constitute slider-rocker mechanism;The elastic element is set to inside the bolt.The connector disclosed by the invention that quickly changes has simple in structure, and at low cost, connection is reliable, and service life is long, changes convenient feature, use easy to spread.
Description
Technical field
The present invention relates to jointing fields, more particularly to one kind quickly changeing connector.
Background technology
In daily work and life, it is often necessary to utilize the quick connection quickly changed between connector realization two items
And separation, it can be divided into that connecting-type quickly changes connector and medium conveying type quickly changes connector according to main usage.It is situated between
Matter conveying type quickly changes connector and can be connect according to the type of pumped (conveying) medium and its difference of pressure, quickly changeing for design specialized
Head;The main function that connecting-type quickly changes connector is connection function, currently, connecting-type quickly changes connector generally using card
Button, rope etc., above-mentioned connection type, generally existing connection reliability is low, changes the deficiencies of inefficient, for example, buckle-type connects
Head, with the increase of its access times, buckling the service life of bending part can decline to a great extent, in addition with buckle material it is old
Change, buckle flexibility is lost, and causes to change and needs to expend more times and strength.In emergency circumstances especially for some,
Especially in urgent rescue attachment device, for the used connection reliability for quickly changeing connector and changes efficiency and have higher
Requirement.
Therefore, those skilled in the art be dedicated to exploitation one kind quickly changeing connector, not only have connection reliably, change
Convenient rapid, feature with long service life also has feature at low cost, simple in structure, easy to spread.
Invention content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the present invention is to do not increase connector cost and
In the case of structure complexity, improve and quickly change the disassembly efficiency of connector, promoted the reliability for quickly changeing connector connection and
Service life.
To achieve the above object, the present invention provides one kind quickly changeing connector, including shell, turntable, transmission shaft, company
Bar, bolt, elastic element;The shell is hollow entity, and the outer profile in told shell left end section is polygon or round;Institute
It includes pin hole to state shell, and the pin hole is set to the shell left end, and the central axis upright of the pin hole is in described
The outer contour surface of shell left end and the housing central axis;The turntable is movably installed in the shell right end;The biography
Moving axis is movably installed in the enclosure, and the center transmission shaft axis is overlapped with the housing central axis;The transmission
Axis includes swing rod, and the swing rod is fixedly connected with the left end face of the transmission shaft, and the transmission shaft right end is solid with the turntable
Fixed connection, the center transmission shaft axis are vertical with the turntable rotational plane;The bolt is movably installed in the pin hole
Interior, the bolt constitutes sliding pair with the pin hole;The swing rod, the connecting rod and the bolt constitute rocker slider machine
Structure;The elastic element is set to inside the bolt.
Further, the shell includes partition board, and the partition board is fixed at the shell inner cavity;The partition board is in institute
It states and is provided with partition board circular hole at the central axis of shell, the center line of the partition board circular hole is overlapped with the housing central axis;
The transmission shaft and the partition board circular hole constitute revolute pair;The both ends of the drive shaft stretches out the partition board.
Further, it is provided with lubriation material between the transmission shaft and the partition board circular hole.
Preferably, the partition board quantity is equal to 2.
Further, the central axis of the pin hole intersects with the central axis of the shell.
Further, described quickly to change connector include rotary position-limit mechanism, and the rotary position-limit mechanism is arranged described
Between turntable and the shell, the rotational angle displacement for limiting the turntable.
Further, swing link pin axis hole, the center of the swing link pin axis hole and the transmission shaft are provided on the swing rod
Axis is parallel, and the swing link pin axis hole is using the central axis of the transmission shaft as the center of circle, with the center of the swing link pin axis hole
The vertical range of axis and the central axis of the transmission shaft is is uniformly distributed on the circle of radius, the center of the swing link pin axis hole
Axis is more than the sliding stroke of the bolt with the vertical range of the central axis of the transmission shaft.
Further, the connecting rod includes first connecting rod pin shaft hole, second connecting rod pin shaft hole, the first connecting rod pin shaft hole
It is set to the first end of the connecting rod, the second connecting rod pin shaft hole is set to the second end of the connecting rod;The bolt
Including bolt pin shaft hole, the bolt pin shaft hole is set to the bolt bottom.
In the better embodiment of the present invention, the connector that quickly changes includes the first axis pin, the second axis pin;Described
One axis pin is movably installed in the swing link pin axis hole and the first connecting rod pin shaft hole, first axis pin respectively with the pendulum
Lever pin axis hole and the first connecting rod pin shaft hole constitute revolute pair;Second axis pin be movably installed in the bolt pin shaft hole and
In the second connecting rod pin shaft hole, second axis pin is constituted with the bolt pin shaft hole and the second connecting rod pin shaft hole respectively
Revolute pair.
In another better embodiment of the present invention, the connector that quickly changes includes the first axis pin, the second axis pin;Institute
It states the first axis pin to be fixedly installed in the first connecting rod pin shaft hole, first axis pin is movably installed in the swing link pin axis hole
In, first axis pin constitutes revolute pair with the swing link pin axis hole;Second axis pin is fixedly installed in the second connecting rod
In pin shaft hole, second axis pin is movably installed in the bolt pin shaft hole, second axis pin and the bolt pin shaft hole
Constitute revolute pair.
Further, the elastic element is helical spring.
Further, it is provided with chamfering or fillet on the left of the catch top, the chamfering or the fillet are towards described
Quickly change the installation direction of insertion of connector.
Further, the material of the shell, the turntable, the transmission shaft, the connecting rod and the bolt is metal
Or thermosetting plastics.
It is further, described that quickly to change connector further include top cap, middleware;The top cap is fixedly mounted on the shell
Left side, protection and insertion for quickly changeing connector are oriented to;The middleware is fixedly mounted on the right side of the shell, is used for institute
It states and quickly changes connector and need being fixedly connected for connector.
It is provided by the invention quickly to change the operation principle of connector and be:
The turntable is rotated manually, by the rotation of the transmission shaft, drives the swing of the swing rod, is slided in the swing rod
Under the action of block mechanism, the bolt is slided toward the pin hole contract, and the elastic element compresses simultaneously, can be carried out at this time
Quickly change the installation and dismounting of connector;When unclamping the turntable, the bolt restores under the action of the elastic element
Initial position.
Compared with prior art, implementation through the invention has reached following apparent technique effect:
1, one kind provided by the invention quickly changes connector, and connection is reliable, and service life is long, changes conveniently rapidly.
2, it is provided by the invention it is a kind of quickly change connector have it is simple in structure, it is at low cost a little, be easy to push away on a large scale
It is wide to use.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is that the preferred embodiment of the present invention quickly changes the diagrammatic cross-section of connector;
Fig. 2 is that the preferred embodiment of the present invention quickly changes the schematic top plan view of connector;
Fig. 3 is that the preferred embodiment of the present invention quickly changes the schematic side view of connector.
Wherein, 1- shells, 11- pin holes, 12- partition boards, 121- lubriation materials, 2- turntables, 3- transmission shafts, 31- swing rods, 4-
Connecting rod, 5- bolts, 6- elastic elements, the first axis pins of 71-, the second axis pins of 72-, 8- top caps, 9- middlewares.
Specific implementation mode
Multiple preferred embodiments that the present invention is introduced below with reference to Figure of description, keep its technology contents more clear and just
In understanding.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention not only limits
The embodiment that Yu Wenzhong is mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.In order to keep diagram apparent, some places suitably exaggerate the thickness of component in attached drawing.
Embodiment 1:
As shown in Figure 1, Figure 2 and Figure 3, one kind of the present invention quickly changes connector, including shell 1, turntable 2, transmission
Axis 3, connecting rod 4, bolt 5, elastic element 6, the first axis pin 71, the second axis pin 72;Shell 1 is hollow entity, 1 left end section of shell
Outer profile be polygon or round, in the present embodiment, the section outer profile of 1 left end of shell is regular hexagon;Shell 1 includes inserting
Pin hole 11, partition board 12;1 inner cavity of shell is each side fixedly installed 1 piece of partition board 12, central shaft of the partition board 12 in shell 1
Partition board circular hole is provided at line, the partition board circle hole centreline of partition board 12 is overlapped with the central axis of shell 1.
2 coaxial pin holes 11 are symmetrically arranged on the outer surface of 1 left end of shell;The central axis of pin hole 11 hangs down
Directly in the central axis of the outer contour surface and shell 1 of 1 left end of shell;The central shaft of the central axis and shell 1 of pin hole 11
Line intersects;It is respectively provided in each pin hole 11 there are one bolt 5, bolt 5 constitutes sliding pair with pin hole 11.
Transmission shaft 3 is rod-shaped revolving body, and transmission shaft 3 is movably installed in the partition board circular hole of partition board 12, the center of transmission shaft 3
Axis is overlapped with 1 central axis of shell;The partition board circular hole of transmission shaft 3 and partition board 12 constitutes revolute pair;Transmission shaft 3 can be in partition board
Rotation, lubriation material 121 is provided between transmission shaft 3 and the partition board circular hole of partition board 12 in 12 partition board circular hole;Transmission shaft 3 be located at every
12 intrinsic outer diameter of plate is more than the outer diameter for the axis that transmission shaft 3 is located between two pieces of partition boards 12;Partition board is stretched out at 3 both ends of transmission shaft
12;Partition board 12 limits the axial float of 3 axis direction of transmission shaft.
Turntable 2 is movably installed in the right end of shell 1, and 3 right end of transmission shaft is fixedly connected with turntable 2, the rotational plane of turntable 2
With the central axis upright of transmission shaft 3;Turntable 2 is provided with undulated outer edge, is convenient for manual rotation;Turntable edge and shell outer circle
For clearance fit;Turntable 2 can surround the center axis thereof of shell 1, while transmission shaft 3 being driven to rotate.
Transmission shaft 3 includes swing rod 31, and swing rod 31 is fixedly connected with the left end face of transmission shaft 3, swing rod 31, connecting rod 4 with it is slotting
Pin 5 constitutes slider-rocker mechanism.
2 swing link pin axis holes, the centerline axis parallel of swing link pin axis hole and transmission shaft 3, swing link pin are provided on swing rod 31
Axis hole is using the central axis of transmission shaft 3 as the center of circle, with hanging down for the central axis of the central axis of swing link pin axis hole and transmission shaft 3
Straight distance is is uniformly distributed on the circle of radius, the vertical range of the central axis of swing link pin axis hole and the central axis of transmission shaft 3
More than the sliding stroke of bolt 5;The quantity of swing link pin axis hole, the quantity of connecting rod 4, the quantity of the first axis pin 71, the second axis pin 72
Quantity and bolt 5 quantity it is equal;Connecting rod 4 includes first connecting rod pin shaft hole, second connecting rod pin shaft hole, first connecting rod pin shaft hole
It is set to the first end of connecting rod 4, second connecting rod pin shaft hole is set to the second end of connecting rod 4;Bolt 5 includes bolt axis pin
Hole, bolt pin shaft hole are set to the bottom of bolt 5;First axis pin 71 is movably installed in swing link pin axis hole and first connecting rod pin shaft hole
In, the first axis pin 71 constitutes revolute pair with swing link pin axis hole and first connecting rod pin shaft hole respectively;Second axis pin 72 is movably installed in
In bolt pin shaft hole and second connecting rod pin shaft hole, the second axis pin 72 is constituted with bolt pin shaft hole and second connecting rod pin shaft hole respectively to be turned
Dynamic pair.
Elastic element 6 is set to inside bolt 5, and when elastic element 6 restores to the original state, bolt 5 stretches out the distance of shell 1
More than 5mm;In the present embodiment, elastic element 6 is preferably helical spring.
The top of bolt 5 is provided with unilateral chamfering or unilateral fillet, and unilateral chamfering or unilateral fillet are towards quickly changeing connector
Installation direction of insertion;In the present embodiment, 5 top setting of bolt is unilateral chamfering.
It includes rotary position-limit mechanism (not marked in figure) quickly to change connector, and the rotary position-limit mechanism is arranged in turntable 2
Between shell 1, the rotational angle displacement for limiting the turntable, in the present embodiment, the rotation angle of turntable 2 is less than 90 °.
It further includes top cap 8, middleware 9 quickly to change connector;Top cap 8 is fixedly mounted on the left part of shell 1, for quick
It changes the protection of connector and is inserted into and be oriented to;Middleware 9 is fixedly mounted on 1 right side of shell, for quickly changeing connector and needing to connect
Part is fixedly connected.
Shell 1, turntable 2, transmission shaft 3, connecting rod 4 and bolt 5 material be metal.
The installation steps for quickly changeing connector of the present invention are as follows:
Quickly changeing after connector is directed at mounting hole for the present invention is inserted directly into, under the action of the top chamfer of bolt 5,
The sliding in pin hole 11 of bolt 5, elastic element 6 compress;After quickly changeing connector and being inserted in place, bolt 5 is just directed at peace
The side opening in hole is filled, bolt 5 slides outside under the action of elastic element 6, toward pin hole 11, stretches out the outer surface of shell 1, will
Connector locking quickly is changed, connector is quickly changed and installs.
The removal step for quickly changeing connector of the present invention is as follows:
Rotation turntable 2 manually, by the rotation of transmission shaft 3, the swing with driven fork 31, in the effect of rocker-slider mechanism
Under, bolt 5 is slided toward 11 contract of pin hole, and elastic element 6 compresses simultaneously;It quickly changes joint lock anti-avulsion to open, extract at this time
Connector is quickly changed, turntable 2 is unclamped, under the action of elastic element 6, bolt 5 is restored to stretching state, and turntable 2 is restored to just
Beginning position, the dismounting for changeing connector finish.
Embodiment 2:
On the basis of embodiment 1, lubriation material 121 could alternatively be bearing;First axis pin 71 can be with fork hinge
Hole is fixedly connected with first connecting rod pin shaft hole one of both;Second axis pin 72 can be with second connecting rod pin shaft hole and bolt pin shaft hole
One of both is fixedly connected.
Embodiment 3:
On the basis of embodiment 1, the quantity of bolt 5 is 1 or 3, the quantity of the pin hole 11 of 1 left end of shell with insert
The quantity of pin 5 is equal.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. one kind quickly changeing connector, which is characterized in that including shell, turntable, transmission shaft, connecting rod, bolt, elastic element;Institute
It is hollow entity to state shell, and the outer profile in told shell left end section is polygon or round;The shell includes pin hole, institute
The left end that pin hole is set to the shell is stated, the central axis upright of the pin hole is in the outer profile table of the shell left end
The central axis in face and the shell, the central axis of the pin hole intersect with the central axis of the shell;The turntable
It is movably installed in the shell right end;The transmission shaft is movably installed in the enclosure, the center transmission shaft axis with
The housing central axis overlaps;The transmission shaft includes swing rod, and the left end face of the swing rod and the transmission shaft, which is fixed, to be connected
It connects, the transmission shaft right end is fixedly connected with the turntable, and the center transmission shaft axis is vertical with the turntable rotational plane;
The bolt is movably installed in the pin hole, and the bolt constitutes sliding pair with the pin hole;The swing rod, the company
Bar constitutes slider-rocker mechanism with the bolt;The elastic element is set to inside the bolt.
2. quickly changeing connector as described in claim 1, which is characterized in that the shell includes partition board, and the partition board is fixed
It is arranged in the shell inner cavity;The partition board is provided with partition board circular hole, the partition board circular hole at the central axis of the shell
Center line overlapped with the housing central axis;The transmission shaft and the partition board circular hole constitute revolute pair;The transmission shaft
The partition board is stretched out at both ends.
3. quickly changeing connector as claimed in claim 2, which is characterized in that be provided with swing link pin axis hole, institute on the swing rod
The centerline axis parallel of swing link pin axis hole and the transmission shaft is stated, the swing link pin axis hole is with the central axis of the transmission shaft
For the center of circle, using the vertical range of the central axis of the swing link pin axis hole and the central axis of the transmission shaft as on the circle of radius
It is uniformly distributed, the central axis of the swing link pin axis hole and the vertical range of the central axis of the transmission shaft are more than the bolt
Sliding stroke.
4. quickly changeing connector as claimed in claim 3, which is characterized in that the connecting rod includes first connecting rod pin shaft hole,
Two link pin axis holes, the first connecting rod pin shaft hole are set to the first end of the connecting rod, and the second connecting rod pin shaft hole is set
It is placed in the second end of the connecting rod;The bolt includes bolt pin shaft hole, and the bolt pin shaft hole is set to the bolt bottom
Portion.
5. quickly changeing connector as claimed in claim 4, which is characterized in that it is described quickly change connector include the first axis pin,
Second axis pin;First axis pin is movably installed in the swing link pin axis hole and the first connecting rod pin shaft hole, and described first
Axis pin constitutes revolute pair with the swing link pin axis hole and the first connecting rod pin shaft hole respectively;Second axis pin is movably installed in
In the bolt pin shaft hole and the second connecting rod pin shaft hole, second axis pin respectively with the bolt pin shaft hole and described
Two link pin axis holes constitute revolute pair.
6. quickly changeing connector as claimed in claim 4, which is characterized in that it is described quickly change connector include the first axis pin,
Second axis pin;First axis pin is fixedly installed in the first connecting rod pin shaft hole, and first axis pin is movably installed in institute
It states in swing link pin axis hole, first axis pin constitutes revolute pair with the swing link pin axis hole;Second axis pin is fixedly installed in
In the second connecting rod pin shaft hole, second axis pin is movably installed in the bolt pin shaft hole, second axis pin and institute
It states bolt pin shaft hole and constitutes revolute pair.
7. quickly changeing connector as claimed in claim 2, which is characterized in that described quickly to change connector include rotary stopper machine
Structure, the rotary position-limit mechanism are arranged between the turntable and the shell.
8. quickly changeing connector as claimed in claim 2, which is characterized in that the shell, the turntable, the transmission shaft,
The material of the connecting rod and the bolt is metal or thermosetting plastics;It is provided with profit between the transmission shaft and the partition board circular hole
Sliding material;The elastic element is helical spring.
9. quickly changeing connector as claimed in claim 2, which is characterized in that be provided with chamfering or circle on the left of the catch top
Angle, the chamfering or the fillet are towards the installation direction of insertion for quickly changeing connector.
10. quickly changeing connector as claimed in any one of claims 1-9 wherein, which is characterized in that described quickly to change connector also
Including top cap, middleware;The top cap is fixedly mounted on the left of the shell;It is right that the middleware is fixedly mounted on the shell
Side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810660474.7A CN108644188A (en) | 2018-06-25 | 2018-06-25 | One kind quickly changeing connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810660474.7A CN108644188A (en) | 2018-06-25 | 2018-06-25 | One kind quickly changeing connector |
Publications (1)
Publication Number | Publication Date |
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CN108644188A true CN108644188A (en) | 2018-10-12 |
Family
ID=63753431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810660474.7A Pending CN108644188A (en) | 2018-06-25 | 2018-06-25 | One kind quickly changeing connector |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109392559A (en) * | 2018-12-05 | 2019-03-01 | 凤台县年丰农业发展有限责任公司 | It is a kind of applied widely to prevent grape dropping device |
CN110589154A (en) * | 2019-09-29 | 2019-12-20 | 杭州福斯特应用材料股份有限公司 | Charging tray mechanism capable of being rapidly installed and detached |
CN112360850A (en) * | 2020-11-26 | 2021-02-12 | 广东理标信息科技有限公司 | Strong magnetic lock catch and mounting method |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109392559A (en) * | 2018-12-05 | 2019-03-01 | 凤台县年丰农业发展有限责任公司 | It is a kind of applied widely to prevent grape dropping device |
CN110589154A (en) * | 2019-09-29 | 2019-12-20 | 杭州福斯特应用材料股份有限公司 | Charging tray mechanism capable of being rapidly installed and detached |
CN112360850A (en) * | 2020-11-26 | 2021-02-12 | 广东理标信息科技有限公司 | Strong magnetic lock catch and mounting method |
CN112360850B (en) * | 2020-11-26 | 2021-07-30 | 广东桂荣永磁新材料科技有限公司 | Strong magnetic lock catch and mounting method |
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