CN207297920U - Mechanical compression formula switch valve core - Google Patents
Mechanical compression formula switch valve core Download PDFInfo
- Publication number
- CN207297920U CN207297920U CN201721354604.1U CN201721354604U CN207297920U CN 207297920 U CN207297920 U CN 207297920U CN 201721354604 U CN201721354604 U CN 201721354604U CN 207297920 U CN207297920 U CN 207297920U
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- sealing
- chamber
- valve core
- mechanical compression
- water shutoff
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Abstract
The utility model provides a kind of mechanical compression formula switch valve core, occupation mode of the traditional switch spool in control water is overturned, push switch switching has been changed to by rotary switch switching, reduce the damage and destruction of switch handle in use, and the inconvenience of hand in use is in use, pressing switching (such as arm) can be carried out with other positions of body.The product appearance relatively more simplicity generosity when being used on product at the same time.The utility model provides a kind of mechanical compression formula switch valve core, and compression spring is provided between press component and blocking component, acts on the up and down motion of water shutoff bar, while plays when opening spool, overcomes the pulling force of water shutoff bar and seal O-ring when by hydraulic pressure.The utility model provides a kind of mechanical compression formula switch valve core, is sealed using O-ring seal, is static sealing, and sealing life is high.
Description
Technical field
The utility model belongs to switch valve core field, more particularly to a kind of mechanical compression formula switch valve core.
Background technology
Pilot valve principle is used than wide, for solenoid valve and pressure reducing valve, overpressure valve other relevant valves.Using
It is more universal for solenoid valve, it is combined using the principle of electromagnetic principle and pilot valve, the solenoid valve of formation.Solenoid valve needs
Just guide's valve film can be made to work under the pressure of certain work after charging, another defect is that solenoid valve is in structure
In design not enough succinctly, it is comparatively troublesome during replacement.
Utility model content
The utility model provides a kind of mechanical compression formula switch valve core, is mainly used on sanitaryware, has used mechanical
Push type makes pilot diaphragm carry out switch control to water inlet front end in handoff procedure.
The utility model uses the principle of pilot valve, the flowing of water is passed through under pressure between different cavitys
The closing and unlatching of pilot hole form a kind of switching.
The problem of for being previously mentioned, the utility model provide a kind of mechanical compression formula switch valve core, it includes：
Seat under valve body, it has a first chamber connected with water inlet, is connected with water outlet and by an exhalant canal
The second chamber connected with the first chamber；
The valve body seat of honour being sealingly mounted under the valve body on seat；
Blocking component is pressed, it is included being arranged in the valve body seat of honour and head end stretches out the upper end at the valve body seat of honour
Press component, and the blocking component moved up or down when the press component is pressed in the valve body seat of honour, institute
The end for stating blocking component has a plugging block；
The first guide assembly of sealing, it, which is arranged under the valve body on seat and limits one with the press component, is located at described second
The 3rd chamber above chamber, the first guide assembly of sealing also have a connection first chamber and the side of the 3rd chamber
Through hole, with a pilot hole for connecting the second chamber and the 3rd chamber；
Wherein, the pilot hole is blocked when the plugging block moves downward, so that the water of the 3rd chamber increases
Hydraulic pressure increases so that the first guide assembly of the sealing moves down the partition exhalant canal；
The pilot hole is opened when the plugging block is lifted up, so that the discharge reduction hydraulic pressure in the 3rd chamber
Reduce so that the first guide assembly of sealing floats and opens the exhalant canal upwards；
There is a compression spring between the press component and the blocking component；
O-ring seal is provided between the blocking component and the first guide assembly of the sealing.
Preferably, in the mechanical compression formula switch valve core, the first guide assembly of sealing includes：
Support base；
Pilot diaphragm gasket is sealed, it is arranged on below the support base and is linked with seat sealing under the valve body, described
Seal pilot diaphragm gasket and limit a sealing floating pilot diaphragm activity space jointly with the support base；
It is arranged on below the support base and positioned at the sealing floating guide of the sealing floating pilot diaphragm activity space
Diaphragm, its center protrude and the sealing pilot diaphragm gasket and are provided with the pilot hole.
Preferably, in the mechanical compression formula switch valve core,
The support base center is provided with a through hole, and the O-ring seal is provided with the upper inlet of the through hole；
The end of the press component is provided with a water shutoff bar and is connected with the blocking component, and the water shutoff bar is penetrated to institute
State through hole.
Preferably, in the mechanical compression formula switch valve core,
The blocking component further include with the plugging block fix limited block, the limited block have a hollow cavity and
The hollow cavity top has a spacing grain；
The water shutoff bar stretches in the hollow cavity and spacing by the spacing grain, and the water shutoff bar outer cover
It can simultaneously be moved up and down equipped with a water shutoff spring in the hollow cavity.
Preferably, in the mechanical compression formula switch valve core,
The press component further includes：
Button；
The indexing part being arranged on below the button, it include inner wall set it is multiple be oriented to teeth first inversion parts and
The second indexable part being arranged on below the first inversion part, it is described formed with guide groove between the two neighboring guiding tooth
The periphery of second indexable part is provided with and the guiding matched positioning tooth of tooth；
Water shutoff rod set, be provided with the matched limiting tooth of the guide groove, and the bottom of the water shutoff rod set is opened
Equipped with a blind hole；
By pressing spring, it is arranged between the button and the indexing part；
Wherein, the head end of the water shutoff bar is stretched into the blind hole so that the water shutoff bar is consolidated with the water shutoff rod set
It is fixed；
The bottom of the indexing part has a spacing ring, and a spacing shim, the limit are arranged with the water shutoff bar
The compression spring is provided between position gasket and the spacing ring.
Preferably, in the mechanical compression formula switch valve core, set between the valve body seat of honour and the first guide assembly of sealing
Decontamination spring is equipped with, the upper end of the decontamination spring is downwardly extending the thimble for stretching into the by-pass prot.
Preferably, in the mechanical compression formula switch valve core, seat is hollow cylinder under the valve body, and surrounding is set
There are multiple water inlets, stainless steel filtering net is provided with each water inlet.
Preferably, in the mechanical compression formula switch valve core, the plugging block is made of elastomeric material.
The utility model provides a kind of mechanical compression formula switch valve core, has overturned use of the traditional switch spool in control water
Mode, push switch switching has been changed to by rotary switch switching, reduce switch handle damage in use and
Destroy, and the inconvenience of hand in use is in use, pressing switching (such as arm) can be carried out with other positions of body.
The product appearance relatively more simplicity generosity when being used on product at the same time.
The utility model provides a kind of mechanical compression formula switch valve core, is provided between press component and blocking component
Compress spring, act on the up and down motion of water shutoff bar, while play when opening spool, overcome water shutoff bar and seal O-ring by
Pulling force during hydraulic pressure.
The utility model provides a kind of mechanical compression formula switch valve core, is sealed using O-ring seal, close for static state
Envelope, sealing life are high.
The further advantage, target and feature of the utility model embody part by following explanation, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the part detonation configuration signal of one embodiment of mechanical compression formula switch valve core provided by the utility model
Figure；
Fig. 2 is that the work of the turn-off transient of one embodiment of mechanical compression formula switch valve core provided by the utility model is shown
It is intended to；
Fig. 3 is that the work that the closing of one embodiment of mechanical compression formula switch valve core provided by the utility model is completed is shown
It is intended to；
Fig. 4 is that the work of the opening moment of one embodiment of mechanical compression formula switch valve core provided by the utility model is shown
It is intended to；
Fig. 5 is that the full opening of work of one embodiment of mechanical compression formula switch valve core provided by the utility model is shown
It is intended to；
Fig. 6 is the structure diagram of one embodiment of mechanical compression formula switch valve core provided by the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or its combination.
As shown in figs. 1 and 6, the utility model provides a kind of mechanical compression formula switch valve core, it includes：
Seat 18 under valve body, it has a first chamber connected with water inlet, connects with water outlet and led to by a water outlet
The second chamber that road is connected with the first chamber；
The valve body seat of honour 4 being sealingly mounted under the valve body on seat 18；
Blocking component is pressed, it includes being arranged in the valve body seat of honour 4 and head end stretches out the upper end at the valve body seat of honour 4
Press component, and the blocking component moved up or down when the press component is pressed in the valve body seat of honour 4,
The end of the blocking component has a plugging block 14；
The first guide assembly of sealing, it is arranged under the valve body on seat 18 and limits one positioned at described the with the press component
The 3rd chamber above two chambers, the first guide assembly of sealing also have a connection first chamber and the 3rd chamber
By-pass prot, with a pilot hole for connecting the second chamber and the 3rd chamber；
Wherein, the pilot hole is blocked when the plugging block 14 moves downward, so that the water of the 3rd chamber increases
More hydraulic pressure increases are so that the first guide assembly of the sealing moves down the partition exhalant canal；
The pilot hole is opened when the plugging block 14 is lifted up, so that the discharge reduction water in the 3rd chamber
Pressure reduces so that the first guide assembly of sealing floats and opens the exhalant canal upwards；
There is a compression spring 7 between the press component and the blocking component；
O-ring seal 10 is provided between the blocking component and the first guide assembly of the sealing.
In the mechanical compression formula switch valve core, the first guide assembly of sealing includes：
Support base 11；
Pilot diaphragm gasket 17 is sealed, it is arranged on the lower section of support base 11 and seals chain with seat 18 under the valve body
Connect, it is empty that the sealing pilot diaphragm gasket 17 limits a sealing floating pilot diaphragm activity with the support base 11 jointly
Between；
It is arranged on the lower section of support base 11 and the sealing positioned at the sealing floating pilot diaphragm activity space is floated first
Guided membrane piece 16, its center, which is protruded, pads 17 with the sealing pilot diaphragm and is provided with the pilot hole.
In the mechanical compression formula switch valve core,
11 center of support base is provided with a through hole, and the O-shaped sealing is provided with the upper inlet of the through hole
Circle 10；
The end of the press component is provided with a water shutoff bar 6 and is connected with the blocking component, the water shutoff bar 6 penetrate to
The through hole.
In the mechanical compression formula switch valve core,
The blocking component further includes the limited block 13 fixed with the plugging block 14, and the limited block 13 is hollow with one
The cavity and hollow cavity top has a spacing grain；
The water shutoff bar 6 stretch to it is in the hollow cavity and spacing by the spacing grain, and outside the water shutoff bar 6
It is arranged with a water shutoff spring 12 and can be moved up and down in the hollow cavity.
In the mechanical compression formula switch valve core,
The press component further includes：
Button 1；
The indexing part 3 of the lower section of button 1 is arranged on, it includes inner wall and sets multiple first inversion parts for being oriented to tooth
With the second indexable part being arranged on below the first inversion part, formed with guide groove, institute between the two neighboring guiding tooth
The periphery for stating the second indexable part is provided with and the guiding matched positioning tooth of tooth；
Water shutoff rod set, be provided with the matched limiting tooth of the guide groove, and the bottom of the water shutoff rod set is opened
Equipped with a blind hole；
By pressing spring 2, it is arranged between the button 1 and the indexing part 3；
Wherein, the head end of the water shutoff bar 6 is stretched into the blind hole so that the water shutoff bar 6 and the water shutoff rod set
It is fixed；
The bottom of the indexing part has a spacing ring, and a spacing shim 5, the limit are arranged with the water shutoff bar
The compression spring 7 is provided between position gasket 5 and the spacing ring.
The operation principle of this press component is identical with the operation principle of push type ball pen, is common knowledge, herein seldom
Introduce.
In the mechanical compression formula switch valve core, decontamination is provided between the valve body seat of honour 4 and the first guide assembly of sealing
Spring 12, the upper end of the decontamination spring 12 are downwardly extending the thimble for stretching into the by-pass prot.
In the mechanical compression formula switch valve core, seat 18 is hollow cylinder under the valve body, and is around provided with multiple
Water inlet, is each provided with stainless steel and filters 21 nets on the water inlet.
In the mechanical compression formula switch valve core, the plugging block 14 is made of elastomeric material.
It is the workflow of mechanical compression formula switch valve core provided by the utility model as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5
Schematic diagram；
Current flow into first chamber from water inlet in Fig. 2, and from first chamber respectively via exhalant canal and by-pass prot stream
Enter second chamber and the 3rd chamber, and second chamber is flowed into from the 3rd chamber via pilot hole, seal pilot diaphragm at this time and be in
Floating state, exhalant canal connection；
Plugging block is driven to move downward and then block pilot hole by pressing button, water shutoff bar in Fig. 3, at this time the 3rd chamber
In water be no longer flow into second chamber so that the water of the 3rd chamber gradually increases, gravity of the sealing pilot diaphragm in water
Moved downward under extruding, close exhalant canal；
Pressing button in Fig. 4 again, water shutoff bar drives plugging block to move upwards and then open the pilot hole, and at this time the 3rd
Water in chamber flows into second chamber, so that the water of the 3rd chamber is gradually reduced to as shown in figure 5, sealing pilot diaphragm
Float upwards, open exhalant canal.
As shown in fig. 6, seat 18 and sealing are installed under the mechanical pressing switch valve core, including valve body of one kind of the utility model
The valve body seat of honour 4 under valve body on seat 18, seat 18 is provided with first chamber A and second chamber B under the valve body, and with the first chamber
3rd cavity C of room A connections.The utility model further includes sealing pilot diaphragm 16 and knob 1, by pressing spring 2, and the sealing is first
Guided membrane piece 16 is arranged under support base 11 and valve body between seat 18, and closure can be acted on by differential water pressures or opens exhalant canal, institute
State formed with the 3rd cavity C between sealing pilot diaphragm 16 and support base 11, and seal pilot diaphragm 16 and be provided with connection
The by-pass prot of 3rd cavity C and first chamber A, and decontamination spring 15 is carried, and the position of the 3rd cavity C of connection and second chamber B
In middle pilot hole.The pressing switching device by button 1 and press pressing spring 2, the spacing grain 3 of switching forms, in distortion spring 8
Under the action of, water shutoff bar 6 and gasket 7 are driven by switching displacement, and be driven up or down by O-ring seal 10, shuttle
In support base 11.Water shutoff bar 6 is blocked on the pilot hole in sealing pilot diaphragm 16, is produced a kind of pressure differential immediately, is made the 3rd
The pressure of cavity C is more than first chamber A, seals pilot diaphragm 16 at this time and is sealed under valve body on seat 18, so as to reach closing water
Flow regime.Opposite water shutoff bar 6 leaves the pilot hole in sealing pilot diaphragm 16, and the pressure in first chamber A areas is more than the 3rd
Cavity C, so as to open exhalant canal, water flows to second chamber B from first chamber A.
The utility model provides a kind of mechanical compression formula switch valve core, and upper part is using mechanical ball pen pressing switching knot
Structure principle, lower part employ pilot valve structural principle, both combinations make push switch spool simpler in constructional appearance
In the case of clean, mechanical pressing switching is realized.
The utility model provides a kind of mechanical compression formula switch valve core, and product component mainly has POM Wear-resistant plastic materials and parts,
EPDM seals and silica gel, spring SUS304 compositions, correlation cross the requirement of water part and meet multinational relevant authentication requirement.
The utility model provides a kind of mechanical compression formula switch valve core, the ball pen switching upper-lower position cleverly used very much
Structure drives middle water shutoff bar, makes water shutoff bar in the case of transmission, and the pilot hole above sealing pilot diaphragm is blocked,
Water is set sealing pilot diaphragm is moved up and down in the case of pressure, transmission mechanism requires guarantee dress in the fabrication process
With parts 0.1mm or so tolerance.
The utility model provides a kind of mechanical compression formula switch valve core, is existed when solving pressing switching by mechanical water shutoff bar
It is driven the effective exercise of overshoot.The plugging block of water shutoff bar bottom is driven by press component, while water shutoff rod set also increases a point water
The stability of bar during exercise.Pressing spool on existing market makes water shutoff bar be transported in magnet using the structure of electromagnet
Change the upper-lower position of water shutoff bar during dynamic up and down motion, so as to play the role of water shutoff.
The utility model provides a kind of mechanical compression formula switch valve core, including the component under the valve body seat of honour and valve body in seat
Part, is provided with support base seat between seat under the valve body seat of honour and valve body, button is partly sequentially installed with support base, presses pressing spring
And indexing part.Support base seat lower part is sequentially installed with water shutoff spring, limited block, water shutoff block and the first guided membrane of sealing
Piece.Pilot diaphragm is sealed to be positioned by sealing pilot diaphragm gasket.Seat is hollow interlayer cylinder under the valve body, seat under valve body
Lower periphery is equipped with multiple water inlets, and stainless steel filter screen is cased with water inlet, makes water have filtering to protect in leading portion.Actually make
It is different from traditional ceramics piece sealing water shutoff spool during.
The utility model provides a kind of mechanical compression formula switch valve core, is only needed one when realizing product function switching
A or several mechanical compression formula switch valve cores load the main body of a flagship product, the leading portion of each spool water outlet is controlled one
Kind function, mechanical compression formula switch valve core is not only easy to operate, and assembling is simple, and can save the manufacture cost of tap, extensively
It is general to apply on various bathroom series of products.
The utility model provides a kind of mechanical compression formula switch valve core, due to using guide structure principle, compared to tradition
The structure of exhalant canal is directly blocked in technology by control-rod, it is more laborsaving, it is more succinct convenient.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to the field of various suitable the utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (8)
1. mechanical compression formula switch valve core, it is characterised in that including：
Seat under valve body, it has a first chamber connected with water inlet, is connected with water outlet and by an exhalant canal and institute
State the second chamber of first chamber connection；
The valve body seat of honour being sealingly mounted under the valve body on seat；
Blocking component is pressed, it is included being arranged in the valve body seat of honour and head end stretches out the pressing of the upper end at the valve body seat of honour
Component, and the blocking component moved up or down when the press component is pressed in the valve body seat of honour, the envelope
The end of blocking component has a plugging block；
The first guide assembly of sealing, it, which is arranged under the valve body on seat and limits one with the press component, is located at the second chamber
3rd chamber of top, the first guide assembly of sealing also have a connection first chamber and the bypass of the 3rd chamber
Hole, with a pilot hole for connecting the second chamber and the 3rd chamber；
Wherein, the pilot hole is blocked when the plugging block moves downward, so that the water of the 3rd chamber increases hydraulic pressure
Increase is so that the first guide assembly of the sealing moves down the partition exhalant canal；
The pilot hole is opened when the plugging block is lifted up, so that the discharge reduction hydraulic pressure increase in the 3rd chamber
So that the first guide assembly of sealing floats and opens the exhalant canal upwards；
There is a compression spring between the press component and the blocking component；
O-ring seal is provided between the blocking component and the first guide assembly of the sealing.
2. mechanical compression formula switch valve core as claimed in claim 1, it is characterised in that the first guide assembly of sealing includes：
Support base；
Pilot diaphragm gasket is sealed, it is arranged on below the support base and is linked with seat sealing under the valve body, the sealing
Pilot diaphragm gasket limits a sealing floating pilot diaphragm activity space with the support base jointly；
It is arranged on below the support base and is located at the sealing floating pilot diaphragm of the sealing floating pilot diaphragm activity space,
Its center protrudes and the sealing pilot diaphragm gasket and is provided with the pilot hole.
3. mechanical compression formula switch valve core as claimed in claim 2, it is characterised in that
The support base center is provided with a through hole, and the O-ring seal is provided with the upper inlet of the through hole；
The end of the press component is provided with a water shutoff bar and is connected with the blocking component, and the water shutoff bar is penetrated to described logical
Hole.
4. mechanical compression formula switch valve core as claimed in claim 3, it is characterised in that
The blocking component further includes the limited block fixed with the plugging block, and the limited block has a hollow cavity and described
Hollow cavity top has a spacing grain；
The water shutoff bar stretches in the hollow cavity and spacing by the spacing grain, and the water shutoff bar outer cover is equipped with
One water shutoff spring can simultaneously move up and down in the hollow cavity.
5. mechanical compression formula switch valve core as claimed in claim 4, it is characterised in that
The press component further includes：
Button；
The indexing part being arranged on below the button, it include inner wall set it is multiple be oriented to teeth first inversion parts and
The second indexable part being arranged on below the first inversion part, formed with guide groove between the two neighboring guiding tooth,
The periphery of described second indexable part is provided with and the guiding matched positioning tooth of tooth；
Water shutoff rod set, be provided with the matched limiting tooth of the guide groove, and the bottom of the water shutoff rod set offers
One blind hole；
By pressing spring, it is arranged between the button and the indexing part；
Wherein, the head end of the water shutoff bar is stretched into the blind hole so that the water shutoff bar is fixed with the water shutoff rod set；
The bottom of the indexing part has a spacing ring, and a spacing shim, the spacing pad are arranged with the water shutoff bar
The compression spring is provided between piece and the spacing ring.
6. mechanical compression formula switch valve core as claimed in claim 1, it is characterised in that the valve body seat of honour and sealing guide's group
Decontamination spring is provided between part, the upper end of the decontamination spring is downwardly extending the thimble for stretching into the by-pass prot.
7. mechanical compression formula switch valve core as claimed in claim 1, it is characterised in that seat is hollow cylinder under the valve body,
And surrounding is provided with multiple water inlets, stainless steel filtering net is provided with each water inlet.
8. mechanical compression formula switch valve core as claimed in claim 1, it is characterised in that the plugging block is elastomeric material system
Into.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721354604.1U CN207297920U (en) | 2017-10-20 | 2017-10-20 | Mechanical compression formula switch valve core |
| US15/838,388 US20190120403A1 (en) | 2017-10-20 | 2017-12-12 | Mechanical press-type switch valve core |
| DE102017129887.8A DE102017129887A1 (en) | 2017-10-20 | 2017-12-14 | Mechanically pressure operated switch valve cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721354604.1U CN207297920U (en) | 2017-10-20 | 2017-10-20 | Mechanical compression formula switch valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297920U true CN207297920U (en) | 2018-05-01 |
Family
ID=62272203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721354604.1U Active CN207297920U (en) | 2017-10-20 | 2017-10-20 | Mechanical compression formula switch valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588205A (en) * | 2017-10-20 | 2018-01-16 | 广州海鸥卫浴用品股份有限公司 | Mechanical compression formula switch valve core |
| WO2020249070A1 (en) * | 2019-06-13 | 2020-12-17 | 厦门松霖科技股份有限公司 | Water discharge structure of push switch, water discharge control valve core, and water discharge device |
-
2017
- 2017-10-20 CN CN201721354604.1U patent/CN207297920U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588205A (en) * | 2017-10-20 | 2018-01-16 | 广州海鸥卫浴用品股份有限公司 | Mechanical compression formula switch valve core |
| WO2020249070A1 (en) * | 2019-06-13 | 2020-12-17 | 厦门松霖科技股份有限公司 | Water discharge structure of push switch, water discharge control valve core, and water discharge device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 511400 No. 363 Shanxi Road, Sha tou street, Panyu District, Guangzhou, Guangdong Patentee after: Guangzhou seagull residential industry Limited by Share Ltd Address before: 511400 No. 363 Shanxi Road, Sha tou street, Panyu District, Guangzhou, Guangdong Patentee before: Guangzhou Seagull Kitchen and Bath Products Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |