CN207209074U - Dustbin - Google Patents
Dustbin Download PDFInfo
- Publication number
- CN207209074U CN207209074U CN201720876626.8U CN201720876626U CN207209074U CN 207209074 U CN207209074 U CN 207209074U CN 201720876626 U CN201720876626 U CN 201720876626U CN 207209074 U CN207209074 U CN 207209074U
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- Prior art keywords
- window
- limited block
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Abstract
The utility model discloses dustbin, it is characterised in that including:Casing；Middle shell, is covered on box opening, and middle shell offers first window；Face-piece, fastened with middle shell, face-piece offers second window consistent with first window, and face-piece can rotate relative to middle shell makes the second window and first window overlap or stagger, and realizes and opens or close first window；By fastening position in middle shell and face-piece, limited block is set, to realize the opening of first window, closure, the hollow cylinder of safety cock and side with slope is further correspondingly arranged respectively in middle shell and face-piece, by both cooperations, is realized the locking of first window and is unlocked and reopen.Dustbin provided by the utility model, unlatching, semi-closed can be set, locked, locked reopen four kinds of states, environmentally-friendly sanitary in use, it can be easy to carry by dustbin is locked after being finished, avoid carry in rubbish drop cause environmental pollution, maloperation locked after can reopen again.
Description
Technical field
It the utility model is related to environmental sanitation technical field, more particularly to dustbin.
Background technology
Rubbish caused by hospital is generally with virus, such as disposable syringe, cotton-ball bar, cotton, so hospital waste
Specially treated is to avoid rubbish virus from spreading in the environment after collection.Existing dustbin by after filling that dustbin is locked,
Then transport to appointed place and destroy, but so if there is being underfilled with dustbin in the case of maloperation cause dustbin
When locked, dustbin will be unable to be continuing with, and cause to waste.
Utility model content
Dustbin provided by the utility model solves one or more in prior art problem.
Dustbin provided by the utility model, it is characterised in that including:
Casing；
Middle shell, is covered on box opening, and middle shell offers first window；
Face-piece, fastened with middle shell, face-piece offers second window consistent with first window, and face-piece can revolve relative to middle shell
Turn to make the second window and first window overlap or stagger, realize and open or close first window；
The first limited block is provided with the outside of middle shell, face-piece outside is provided with the second limited block with the second limited block correspondence position；When
When face-piece rotation makes first window and the coincidence of the second window, the second limited block offsets with the first limited block, and first window keeps beating
Open state；
Hollow cylinder is provided with the top of face-piece, positioned at the second window along the side for closing first window direction, middle shell is hollow
Position corresponding to cylinder rotation path is provided with Telescopic safety bolt, when face-piece rotation makes first window and the second window stagger,
Safety cock can be sprung into hollow cylinder, realize the locking of first window；
Side of the hollow cylinder away from the second window is provided with slope, and safety cock by ramp compression and can be withdrawn, to realize
The latch-release of one window.
Dustbin provided by the utility model, can set unlatching, semi-closed, it is locked, locked reopen four kinds of states,
Environmentally-friendly sanitary in use, it can be easy to carry by dustbin is locked after being finished, avoiding in carrying rubbish from dropping causes ring
Border is polluted, and can be reopened again after maloperation is locked.
In some embodiments, middle shell surface is provided with the inner chamber that can accommodate safety cock, safety cock bottom to the side of casing
Elastic telescopic part is provided between inner chamber, location division is provided with the top of safety cock, location division can be sprung into hollow cylinder, location division top
Portion can slide along slope and withdraw inner chamber by ramp compression.
So, it is possible to realize face-piece by first window it is locked after restart again, solve and be underfilled with rubbish using process dustbin
Maloperation causes the technical problem that dustbin can not use during rubbish.
In some embodiments, middle shell and face-piece are respectively provided with the easy deformation of elasticity, and face-piece shell and the second limited block are symmetrical
Provided with the 3rd limited block；
Under normality, toward the second limited block away from the first spacing Block direction shell of revolution, make the 3rd limited block spacing toward first
Block is drawn close, and when the 3rd limited block and the first limited block offset, increases face-piece rotation dynamics, the 3rd limited block can skip the first limit
Position block, the opposite side of the 3rd limited block and the first limited block offset, and the location division of safety cock springs into hollow cylinder, realizes the first window
The locking of mouth closed mode；
The first limited block can be skipped toward the rotation dynamics of the first spacing Block direction, the 3rd limited block by increasing face-piece, while tiltedly
Slope compression set portion retraction inner chamber, releases the locking of first window.
In this way, the 3rd limited block of increase, can increase face-piece and the stability of middle shell locking under normality.
In some embodiments, be provided with the 4th limited block on the outside of middle shell, positioned at the first limited block not with the second limited block
The side to offset；
Under normality, toward the second limited block away from the first spacing Block direction shell of revolution, the 3rd limited block and the 4th limited block
Offset；Increase face-piece rotation dynamics, the 3rd limited block can skip the 4th limited block be located at the 4th limited block and the first limited block it
Between, now first window is in closure unlocked state；
In this way, by the 4th limited block, first window but unlocked function are closed to increase in use, dustbin without
Avoid waste odours from distributing during full rubbish or dustbin is dumped rubbish and drops out pollution environment, more environmentally friendly health.
In some embodiments, conflict power when the first limited block and the second limited block offset be more than face-piece and middle shell it
Between deformation power；
Power is less than the deformation power between face-piece and middle shell when 3rd limited block and the first limited block offset；
Conflict power is less than the deformation power between face-piece and middle shell when 3rd limited block and the 4th limited block offset.
It so, it is possible to realize the limitation for rotating face-piece under normality, the limitation to face-piece can be released when applying pressure.
In some embodiments, face-piece is provided with through hole, and positioned at the both sides of the second window, middle shell is in the track that through hole rotates
On be correspondingly provided with "ON" word tip block and " closing " word tip block；
When "ON" word tip block is corresponding with the through hole of the second window side, first window and the second window are overlapped and are in
Open mode；
When " closing " word tip block is corresponding with another through hole, the window of first window second stagger and be in closure it is unlocked
Determine state；
When " closing " word tip block is come across in the second window, then first window is in the lock state.
In this way, can more be easy to people to understand the state of current dustbin, maloperation is reduced, is brought to people using dustbin
It is more convenient.
In some embodiments, face-piece is provided with connecting pole towards the center of middle shell side, and middle shell is corresponding with connecting pole
Position is provided with connection ring, and jump ring is provided with connection ring, and connecting pole is inserted in connection ring, and jump ring is sheathed on outside connection ring.
In this way, face-piece can be realized and the connection of middle shell and can rotated relative to middle shell, while jump ring can limit face
The motion of shell axial direction, face-piece is avoided to drop out middle shell.
In some embodiments, the outside of middle shell is provided with annular groove, and positioning bone is provided with the inside of face-piece, positions bone and ring
Connected in star can slide with merging in annular groove.
In this way, the cooperation of positioning bone and annular groove so that face-piece be connected with middle shell it is more firm, while can to face-piece
Rotation is oriented to, and face-piece is rotated to obtain more steady and smooth.
In some embodiments, position is fastened on the inside of middle shell with casing and is provided with the first convex tendon, be provided with the outside of casing top
Neck, the first convex tendon are fastened with neck.
In this way, middle shell connects simplicity with casing, consolidate, save the set-up time.
In some embodiments, face-piece exterior side wall is uniformly arranged some ribs.
In this way, can be with anti-skidding, while it is easy to singlehanded any angle to hold face-piece, face-piece is easily rotated.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the dustbin of embodiment provided by the utility model；
Fig. 2 is a kind of dustbin of embodiment provided by the utility model in open mode top view and sectional view；
Fig. 3 be a kind of dustbin of embodiment provided by the utility model closure unlocked state top view and
Sectional view；
Fig. 4 is top view and section of a kind of dustbin of embodiment provided by the utility model in locking states
Figure；
A kind of middle shell structure schematic diagram of Fig. 5 dustbins of embodiment provided by the utility model；
Fig. 6 is a kind of shell structure schematic diagram of the dustbin for embodiment that utility model provides；
Fig. 7 is the face-piece of dustbin and the broken section of middle shell junction for a kind of embodiment that utility model provides
Figure；
A kind of dustbin for embodiment that Fig. 8 provides for utility model hollow cylinder and safety cock in lock-out state are matched somebody with somebody
The partial sectional view of conjunction；
Fig. 9 is a kind of ramp compression of the dustbin hollow cylinder when unlocking for embodiment that utility model provides
The partial sectional view of safety cock.
Embodiment
The utility model is further described with reference to Figure of description.
Referring to Fig. 1-9, dustbin, including casing 1, middle shell 2, face-piece 3.Wherein, middle shell 2 is covered in the opening of casing 1, in
Shell 2 offers first window 21, and face-piece 3 fastens with middle shell 2, and face-piece 3 offers second window 31 consistent with first window 21,
Face-piece 3 can rotate relative to middle shell 2 make the second window 31 and first window 21 is overlapped or staggered, and realize and open or close the
One window 21.Further, the middle outside of shell 2 is provided with the first limited block 22, and the outside of face-piece 3 is provided with the correspondence position of a limited block 22
Second limited block 32, when the rotation of face-piece 3 overlaps the window 31 of first window 21 and second, the second limited block 32 and first spacing
Block 22 offsets, and is rotated further with limiting face-piece 3 toward the direction of the first limited block 22, realizes that first window 21 remains on.Face
The top of shell 3 is additionally provided with hollow cylinder 33, and positioned at the second window 31 along the side for closing the direction of first window 21, middle shell 2 is hollow
Position corresponding to the rotation path of cylinder 33 is provided with Telescopic safety bolt 4, when the rotation of face-piece 3 makes the window 31 of first window 21 and second
When staggering, safety cock 4 can be sprung into hollow cylinder 33, realize the locking of first window 21, wherein, hollow cylinder 33 is away from second
The side of window 31 is provided with slope 331, and safety cock 4 can be compressed and withdrawn by slope 331, to realize the locking solution of first window 21
Remove.
In use, shell of revolution 3, overlaps the window 31 of first window 21 and second, now the second limited block 32 and first
Limited block 22 offsets, and prevents face-piece 3 from continuing to rotate toward the direction of the first limited block 22, avoids the excessively rotation of face-piece 3 from causing the first window
Mouth 21 is closed.When toward away from the first 22 shell of revolution 3 of limited block, now the second window 31 gradually stagger with first window 21 to
Close first window 21, when face-piece 3 rotate make the safety cock 4 of middle shell 2 and hollow cylinder 33 to it is corresponding when safety cock 4 spring into it is hollow
In cylinder 33, now face-piece 3 and middle shell 2 are in the lock state.When needing to reopen, rotation dynamics is increased to face-piece 3, it is past
The rotation of the opposite direction of first window 21 is closed, the slope of hollow cylinder 33 can withdraw safety cock 4 with compressing secure bolt 4, release
The locking of face-piece 3.
Specifically, middle shell 2 is provided with towards the side of casing 1 can accommodate the inner chamber 23 of safety cock 4, the bottom of safety cock 4 with it is interior
Elastic telescopic part 5 is provided between chamber 23, the top of safety cock 4 is provided with location division 41, and location division 41 can be sprung into hollow cylinder 33, fixed
The top of position portion 41 can be slided to be compressed by slope 331 along slope 331 withdraws inner chamber 23.So when safety cock 4 is by the pressure of face-piece 3
When, elasticity of compression extensible member 5 withdraws inner chamber 23, and when pressure cancels, elastic telescopic part 5 replys ejection safety cock 4, makes safety cock 4
Location division 41 insert hollow cylinder 33 in, realize the locking to face-piece 3.
Specifically, middle shell 2 and face-piece 3 are respectively provided with the easy deformation of elasticity, the shell of face-piece 3 and the second limited block 32 are arranged with the
Three limited blocks 34；
Under normality, toward the second limited block 32 away from the direction shell of revolution 3 of the first limited block 22, make the 3rd limited block 34 toward the
One limited block 22 is drawn close, and when the 3rd limited block 34 and the first limited block 22 offset, is increased face-piece 3 and is rotated dynamics, the 3rd is spacing
Block 34 can skip the first limited block 22, and the location division 41 of safety cock 4 springs into hollow cylinder 33, realizes the closed mode of first window 21
Locking, increase face-piece 3 toward the rotation dynamics in the direction of the first limited block 21, the 3rd limited block 34 can skip the first limited block 22,
The retraction inner chamber 23 of 331 compression set portion of slope 41 simultaneously, release the locking of first window 21.
When rotated by going into overdrive to make to produce deformation in radial direction between face-piece 3 and middle shell 2, it is spacing to release the 3rd
Conflict power between the limited block 22 of block 34 and first so that safety cock 4 can reach the position corresponding with hollow cylinder 33 simultaneously
Inserting in hollow cylinder 33, face-piece 3 is locked, limitation face-piece 3 is rotated further, meanwhile, under normality, the nothing of the 3rd limited block 34
Method is skipped the first limited block 22 and returned, and the both direction of face-piece 3 is limited, locking of the increase face-piece 3 to first window 21
Ability.When needing to restart face-piece 3, being gone into overdrive toward the direction of the first limited block 22, can to abolish the 3rd spacing for shell of revolution 3
The conflict power of the limited block 22 of block 34 and first causes the 3rd limited block 34 to skip the first limited block 22, while slope 331 is positioning
The top in portion 41 is streaked and compression set portion 41 makes the retraction inner chamber 23 of safety cock 4, is relieved the locking of face-piece 3, can be beaten again
Open first window 21 and be continuing with dustbin.
Further, the outside of middle shell 2 is provided with the 4th limited block 24, positioned at the first limited block 22 not with the phase of the second limited block 32
The side supported, under normality, toward the second limited block 32 away from the direction shell of revolution 3 of the first limited block 22, the 3rd limited block 34 and the
Four limited blocks 24 offset；Increase face-piece 3 and rotate dynamics, the 3rd limited block 34 can skip the 4th limited block 24 and be located at the 4th limited block
24 and first between limited block 22, and now first window 21 is in closure unlocked state.First window is closed in shell of revolution 3
When 21, run into and apply pressure continuation shell of revolution 3 when hindering for the first time so that the 3rd limited block 34 skips the 4th limited block 24, such as
The first window 21 of dustbin in use can be closed but be in unlocked state, the negative side when needing throw away rubbish by this
To operation, then first window 21 can be opened toward dustbin throw away rubbish, so in use waste odours can be avoided to distribute
Or dustbin is dumped rubbish and drops out pollution environment, uses environmental protection.
Wherein, conflict power when the first limited block 22 and the second limited block 32 offset is more than the shape between face-piece 3 and middle shell 2
Power is less than the deformation power between face-piece 3 and middle shell 2 when variable force, the 3rd limited block 34 and the first limited block 22 offset, and the 3rd is spacing
Conflict power is less than the deformation power between face-piece 3 and middle shell 2 when the limited block 24 of block 34 and the 4th offsets.It can so realize in normality
It limitation of the lower position block to face-piece 3, can be lifted restrictions when applying pressure, reach locking or open the purpose of face-piece 3.
As preferable embodiment, through hole 35 can also be set on face-piece 3, through hole 35 is located at the two of the second window 31
Side, middle shell 2 are correspondingly provided with "ON" word tip block 25 and " closing " word tip block 26 on the track that through hole 35 rotates.When "ON" word carries
When showing that block 25 is corresponding with the through hole 35 of the side of the second window 31, the window 31 of first window 21 and second overlaps and is in open shape
State；When " closing " word tip block 26 is corresponding with another through hole 35, the window 31 of first window 21 second staggers and in closure
Unlocked state；When " closing " word tip block 26 is come across in the second window 31, then first window 21 is in the lock state.Pass through
Tip block is set, can more be easy to people to understand the state of current dustbin, maloperation is reduced, is brought more using dustbin to people
More facilities.
Specifically, face-piece 3 is provided with connecting pole 36, middle shell 2 and 36 corresponding position of connecting pole towards the center of the middle side of shell 2
Provided with connection ring 27, jump ring 6 is provided with connection ring 27, connecting pole 36 is inserted in connection ring 27, and jump ring 6 is sheathed on outside connection ring 27
Portion.In this way, face-piece 3 can be realized and the connection of middle shell 2 and can rotated relative to middle shell 2, while jump ring 6 can limit face-piece
The motion of 3 axial directions, face-piece 6 is avoided to drop out middle shell 2.
In the present embodiment, jump ring 6 is existing product, no longer more herein for limiting a kind of fastener being axially moved
Add and repeat.
Further, the outside of middle shell 2 is additionally provided with annular groove 28, and the inner side of face-piece 3 is provided with positioning bone 37, positioning bone 37 with
Annular groove 28 can slide with merging in annular groove 28.Position the cooperation of bone 37 and annular groove 28 so that face-piece 3 is with
Shell 2 connects more firm, while can be oriented to the rotation of face-piece 3, face-piece 3 is rotated to obtain more steady and smooth.
Specifically, the middle inner side of shell 2 fastens position with casing 1 and is provided with the first convex tendon 29, the top outer of casing 1 is provided with neck
11, the first convex tendon 29 is fastened with neck 11.Middle shell 2 and casing 1 connect simplicity, consolidate, and save the set-up time.
Further, the exterior side wall of face-piece 3 is uniformly arranged some ribs 7, so can be with anti-skidding, while is easy to singlehanded any
Angle can hold face-piece 3, face-piece 3 is easily rotated.
The above is only some embodiments of the present utility model.For the person of ordinary skill of the art, not
On the premise of departing from the utility model creation design, various modifications and improvements can be made, these belong to the utility model
Protection domain.
Claims (10)
1. dustbin, it is characterised in that including:
Casing (1)；
Middle shell (2), cover in casing (1) opening, the middle shell (2) offers first window (21)；
Face-piece (3), being fastened with middle shell (2), the face-piece (3) offers second window (31) consistent with first window (21),
The face-piece (3) can rotate relative to middle shell (2) makes the second window (31) and first window (21) overlap or stagger, and realization is beaten
On or off closes first window (21)；
The first limited block (22), face-piece (3) inner side and the first limited block (22) correspondence position are provided with the outside of the middle shell (2)
Provided with the second limited block (32)；When face-piece (3) rotation overlaps first window (21) and the second window (31), second limit
Position block (32) offsets with the first limited block (22) realizes that first window (21) remains on；
Hollow cylinder (33) is provided with the top of the face-piece (3), first window (21) direction is closed positioned at the second window (31) edge
Side, the middle shell (2) is provided with Telescopic safety bolt (4) in position corresponding to hollow cylinder (33) rotation path, when face-piece (3)
When rotation makes first window (21) and the second window (31) stagger, it is interior that the safety cock (4) can spring into the hollow cylinder (33),
Realize the locking of first window (21)；
Side of the hollow cylinder (33) away from the second window (31) is provided with slope (331), and the safety cock (4) can be by slope
(331) compress and withdraw, to realize the latch-release of first window (21).
2. dustbin according to claim 1, it is characterised in that the middle shell (2) is provided with towards the side of casing (1) can
The inner chamber (23) of safety cock (4) is accommodated, elastic telescopic part (5) is provided between safety cock (4) bottom and inner chamber (23), it is described
Location division (41) are provided with the top of safety cock (4), the location division (41) can be sprung into hollow cylinder (33), the location division (41)
Top can be slided to be compressed by slope (331) along slope (331) withdraws inner chamber (23).
3. dustbin according to claim 2, it is characterised in that the middle shell (2) and face-piece (3) are respectively provided with the easy shape of elasticity
Become, face-piece (3) shell and the second limited block (32) are arranged with the 3rd limited block (34)；
Under normality, toward the second limited block (32) away from the first limited block (22) direction shell of revolution (3), make the 3rd limited block (34)
Drawn close toward the first limited block (22), when the 3rd limited block (34) offsets with the first limited block (22), increase face-piece (3) revolving force
Degree, the 3rd limited block (34) can skip the first limited block (22), and the location division (41) of the safety cock (4) springs into the sky
Stem body (33), realize the locking of first window (21) closed mode；
The first limit can be skipped toward the rotation dynamics in the first limited block (22) direction, the 3rd limited block (34) by increasing face-piece (3)
Position block (22), while slope (331) compression set portion (41) retraction inner chamber (23), release the locking of first window (21).
4. dustbin according to claim 3, it is characterised in that the 4th limited block (24) is provided with the outside of the middle shell (2),
Positioned at the side that the first limited block (22) does not offset with the second limited block (32)；
Under normality, toward the second limited block (32) away from the first limited block (22) direction shell of revolution (3), the 3rd limited block
(34) offseted with the 4th limited block (24)；Face-piece (3) rotation dynamics is increased, the 3rd limited block (34) can skip the 4th limited block
(24) between the 4th limited block (24) and the first limited block (22), now first window (21), which is in, closes unlocked shape
State；
5. dustbin according to claim 4, is characterised by, first limited block (22) and the second limited block (32) phase
To when conflict power be more than deformation power between face-piece (3) and middle shell (2)；
Power is less than the deformation between face-piece (3) and middle shell (2) when 3rd limited block (34) and the first limited block (22) offset
Power；
Conflict power is less than between face-piece (3) and middle shell (2) when 3rd limited block (34) and the 4th limited block (24) offset
Deformation power.
6. dustbin according to claim 4, it is characterised in that the face-piece (3) is provided with through hole (35), positioned at the second window
The both sides of mouth (31), the middle shell (2) are correspondingly provided with "ON" word tip block (25) and " closing " on the track that through hole (35) rotates
Word tip block (26)；
When the "ON" word tip block (25) is corresponding with the through hole (35) of the second window (31) side, the first window
(21) overlap with the second window (31) and be in open mode；
When " closing " the word tip block (26) is corresponding with another through hole (35), the window of first window (21) second
(31) stagger and in closure unlocked state；
When " closing " the word tip block (26) is come across in the second window (31), then first window (21) is in the lock state.
7. dustbin according to claim 1, it is characterised in that the face-piece (3) sets towards the center of middle shell (2) side
There is a connecting pole (36), the middle shell (2) position corresponding with connecting pole (36) is provided with connection ring (27), in the connection ring (27)
Provided with jump ring (6), the connecting pole (36) is inserted in the connection ring (27), and the jump ring (6) is sheathed on connection ring (27) outside
Portion.
8. dustbin according to claim 7, it is characterised in that the outside of the middle shell (2) is provided with annular groove (28),
It is provided with positioning bone (37) on the inside of the face-piece (3), the positioning bone (37) matches somebody with somebody that merge can be in annular groove with annular groove (28)
(28) slided in.
9. dustbin according to claim 1, it is characterised in that fasten position with casing (1) on the inside of the middle shell (2) and set
There is the first convex tendon (29), casing (1) top outer is provided with neck (11), and first convex tendon (29) fastens with neck (11)
It is fixed.
10. according to the dustbin described in claim any one of 1-9, it is characterised in that face-piece (3) exterior side wall is laid
Put some ribs (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876626.8U CN207209074U (en) | 2017-07-18 | 2017-07-18 | Dustbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876626.8U CN207209074U (en) | 2017-07-18 | 2017-07-18 | Dustbin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207209074U true CN207209074U (en) | 2018-04-10 |
Family
ID=61813211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720876626.8U Active CN207209074U (en) | 2017-07-18 | 2017-07-18 | Dustbin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207209074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875075A (en) * | 2021-01-08 | 2021-06-01 | 上海梓砼科技有限公司 | Classification recycling box |
-
2017
- 2017-07-18 CN CN201720876626.8U patent/CN207209074U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875075A (en) * | 2021-01-08 | 2021-06-01 | 上海梓砼科技有限公司 | Classification recycling box |
| CN112875075B (en) * | 2021-01-08 | 2022-07-08 | 上海梓砼科技有限公司 | Classification recycling box |
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Effective date of registration: 20180511 Address after: 528400 C, 3rd floor, No. 26 factory building, Qianjin three road, Tanzhou Town, Zhongshan, Guangdong. Patentee after: Zhongshan three road Electronic Technology Co., Ltd. Address before: 528400, third industrial area, Tanzhou Town, Zhongshan, Guangdong, three road 26, 3rd floor. Patentee before: Wu Congli |