CN208268423U - valve - Google Patents
valve Download PDFInfo
- Publication number
- CN208268423U CN208268423U CN201820415001.6U CN201820415001U CN208268423U CN 208268423 U CN208268423 U CN 208268423U CN 201820415001 U CN201820415001 U CN 201820415001U CN 208268423 U CN208268423 U CN 208268423U
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- valve
- valve body
- spool
- metal plate
- installation panel
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Abstract
The utility model relates to a kind of valve, solve the problems, such as that valve easily fails every cigarette.Valve includes valve body and valve block, the valve body is equipped with exhaust outlet, the valve block is arranged on valve body and is used to open or closes the exhaust outlet, the valve block includes the metal plate being arranged on the valve body and the rubber ring that the metal plate outer wall is arranged in, when the valve block closes the exhaust outlet, the outer profile of the outer profile of the metal plate and the rubber ring offsets with the valve body respectively.
Description
Technical field
The utility model relates to a kind of valves.
Background technique
Valve includes installation panel, spool and valve block, and spool is mounted on installation panel, and valve block is mounted on spool, spool
Upper to have exhaust outlet, valve block turns on or off exhaust outlet with respect to valve core movement, and existing valve block includes metal plate and rubber
Ring, rubber ring set is in metal plate side, and when valve block closes exhaust outlet, rubber ring offsets with spool.
However, tester's discovery is when valve completes high temperature flammability test, certain probability, which will be present, causes valve block that can not close
Close exhaust outlet, it has been investigated that, the main reason for valve block can not close exhaust outlet includes: 1, due to different location rubber ring by
In uneven heating to generate burn-off rate difference, therefore, different location to transmit different heats to corresponding spool,
Spool is made of metal, and metal is influenced by the factors such as " expanding with heat and contract with cold ", thermal deformation, fusing point can deformation occurs；2, rubber
Rubber ring fusing has solid particle of certain probability after its fusing is adhered in the inside of metal plate.As long as above-mentioned two situations occur
Any one all can cause valve block that can not close exhaust outlet.
Utility model content
Problem to be solved in the utility model is just to provide a kind of valve.
To solve the above problems, the utility model provides the following technical solutions:
Valve includes valve body and valve block, and the valve body is equipped with exhaust outlet, and the valve block is arranged on valve body and is used to open
Or the exhaust outlet is closed, the valve block includes the metal plate being arranged on the valve body and is arranged in the metal plate outer wall
Rubber ring, when the valve block closes the exhaust outlet, the outer profile of the outer profile of the metal plate and the rubber ring point
It does not offset with the valve body.
Further, the rubber ring includes the interior ring segment being arranged on the metal plate and is arranged outside the interior ring segment
The outer ring segment of side, the thickness of interior ring segment described in the thickness < of the outer ring segment.Rubber ring has hardness requirement, when
In the thickness < of outer ring segment when the thickness of ring segment, outer ring segment ensured by increasing thickness rubber ring and metal plate it
Between bonding strength, interior ring segment by reduce tioned weakened thickness rubber ring hardness with ensure rubber ring seal ring baffle.
Further, the thickness of the outer ring segment is H1, and the thickness of the interior ring segment is H2,1:1.5≤H1:
H2≤1:3.
Further, the rubber ring is pasted on the metal plate outer wall by heat pressing process.It is designed in this way, increases valve
Bonding strength between production efficiency, raising rubber ring and metal plate.
Further, the length of pasting of the rubber ring and the metal plate is a, 0.5mm < a < 30mm.
Further, the rubber ring is axially gradually inclined outwardly from middle position to marginal position along it.It is designed in this way,
Reduce the contact area of rubber ring and valve body.
Further, the valve further includes bindiny mechanism and the first elastic element, described bindiny mechanism one end and the valve
Internal wall rotation connection, bindiny mechanism's other end and the metal plate are rotatablely connected, and first elastic element connects institute
Bindiny mechanism is stated with the valve body and for driving the bindiny mechanism to rotate relative to the valve body.
Further, the valve further includes plectrum, temperature sensing device and the second elastic element, and the plectrum and the valve body turn
Dynamic connection, the temperature sensing device are fixed on the valve body, and second elastic element one end is connect with the valve body, and described the
The two elastic element other ends connect with the plectrum and the plectrum are driven to offset with the temperature sensing device.
Further, the plectrum is equipped with clamping portion, and the bindiny mechanism, which is equipped with, to match with the clamping portion
Clamping engagement portion, when temperature sensing device work and valve block closing exhaust outlet, the clamping engagement portion is inserted into the clamping portion.
Further, the bindiny mechanism includes connecting rod and fixed plate, the inner wall turn of described connecting rod one end and the valve body
Dynamic connection, the other end of the connecting rod and the fixed plate are rotatablely connected, and the fixed plate is fixedly connected with the metal plate.
Further, the valve further includes locating rod and check lock lever, and it is described fixed that the fixed plate passes through with the metal plate
Position bar is fixedly connected, and the fixed plate is rotatablely connected with the connecting rod by the check lock lever, the check lock lever and the positioning
Bar is separately positioned in the fixed plate by two angles.
Further, the valve further includes temperature sensing device and automatic mechanism for locking up, and the automatic mechanism for locking up is movable to be set
It sets on the valve body and offsets with the valve block, the valve body limits the relatively described valve of valve block by the temperature sensing device
The position of body, after the temperature sensing device work, the automatic mechanism for locking up pushes the valve block to close the exhaust outlet.
Further, the automatic mechanism for locking up includes lock bolt, shaft and third elastic element, the lock bolt and the valve
Body is rotatablely connected by the shaft, and the third elastic element is for connecting the lock bolt and the valve body, the temperature-sensitive dress
After setting work, the third elastic element drives the lock bolt around the axis rotation of the shaft, so that the lock bolt pushes institute
It states valve block and closes the exhaust outlet；Either, the automatic mechanism for locking up includes lock bolt and shaft, the lock bolt and the valve body
It being rotatablely connected by the shaft, the center of gravity of the lock bolt is located at the inside of the shaft, after the temperature sensing device work, the lock
It is latched under self gravitation effect around the axis rotation of the shaft and the valve block is pushed to close the exhaust outlet.
Further, the valve body includes installation panel and spool, and the exhaust outlet is arranged on the spool, the peace
It fills panel and the spool is integrally formed；Or, the installation panel is linked together with the spool by welding；Or, the peace
Dress panel is threadedly coupled with the spool；Or, the installation panel is snapped connection with the spool；Or, the installation panel with
The spool interference fit.
Further, the valve further includes operating stick and fixture block, and described operating stick one end is prolonged after running through the installation panel
It extends to outside the valve body, the other end of the operating stick is arranged in the fixture block, and the operating stick drives the fixture block back and forth to be transported
It is dynamic, to adjust the spacing distance between the fixture block and the installation panel；Or, the valve further includes adjusting rod and reed, institute
It states reed one end to be connected on the valve body, described adjusting rod one end is located in the spool, which runs through institute
It offsets after stating spool with the reed other end, the adjusting rod axially reciprocating, to adjust the reed other end and peace
Fill the angle between panel.
The utility model has the beneficial effects that
1, the rubber ring of the utility model is arranged on the outer wall of metal plate, when rubber ring is arranged on metal plate outer wall
When, the solid particle formed after rubber ring high temperature melting is attached on metal plate outer wall, either, shape after rubber ring high temperature melting
At fixation particle fall off from metal plate.It is designed in this way, the solid particle formed after rubber ring high temperature melting is avoided to be clipped in gold
Belong between plate and valve body.
2, the metal plate of the utility model and rubber ring offset with valve body respectively, and metal plate and valve body are all by made of metal
At, it is generally the case that the two is made of identical metal, when metal plate and valve body are made of identical metal, and metal plate
When offseting with valve body, even if deformation occurs for metal plate and valve body, the deformation extent of the two is also similar.Be designed in this way, valve occur every
The probability of cigarette failure is greatly reduced.
3, the metal plate of the utility model and rubber ring offset with valve body respectively, and valve realizes dual-seal.
Detailed description of the invention
Fig. 1 is the first perspective view of valve in the utility model embodiment one；
Fig. 2 is the perspective view of the utility model embodiment one middle valve plate and spool；
Fig. 3 is the partial enlarged view in Fig. 2 at A；
Fig. 4 is the cross-sectional view of rubber ring in the utility model embodiment one；
Fig. 5 is the second perspective view of valve in the utility model embodiment one；
Fig. 6 is the perspective view of valve in the utility model embodiment two；
Fig. 7 is the perspective view of part valve body in the utility model embodiment one.
Specific embodiment
The technical solution of the utility model embodiment is explained below with reference to the attached drawing of the utility model embodiment and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's obtained other embodiments without making creative work, belong to the utility model
Protection scope.
Embodiment one
Referring to Fig.1, valve includes valve body and valve block 3, and valve body is equipped with exhaust outlet 21, and valve block 3 is arranged on valve body and is used for
Exhaust outlet 21 is turned on or off, when valve block 3 closes exhaust outlet 21, is equipped between the house of valve and exhaust duct for exchanging
The path of gas will be disconnected；When valve block 3 opens exhaust outlet 21, the oil smoke for being equipped with the premises of valve can pass through exhaust outlet
21 enter in exhaust duct.
Referring to Fig. 2 and Fig. 3, difference from prior art is: in the present embodiment, valve block 3 includes being arranged on valve body
Metal plate 31 and the rubber ring 32 in the outside of metal plate 31 is set, when valve block 3 closes exhaust outlet 21, the foreign steamer of metal plate 31
Wide and rubber ring 32 outer profile offsets with valve body respectively.
In the present embodiment, when rubber ring 32 is arranged at 31 outside of metal plate, rubber ring 32 is from middle position to margin location
It sets and is axially gradually inclined outwardly along it, from fig. 4, it can be seen that rubber ring 32 is in " horn-like ".
In the present embodiment, rubber ring 32 is pasted on 31 outer wall of metal plate by heat pressing process, rubber ring 32 and metal plate
31 length of pasting is a, 0.5mm < a < 30mm, preferably, a=3mm, 4mm, 5mm, 6mm, 7mm, 8mm.In the utility model
Other embodiments in, rubber ring is snapped connection with metal plate；Either, rubber ring is threadedly coupled with metal plate.
From figs. 3 and 4 it can be seen that the rubber ring of the present embodiment includes 302 He of interior ring segment being arranged on metal plate 31
The outer ring segment 301 in interior 302 outside of ring segment is set, the thickness of ring segment 302, outer ring in the thickness < of outer ring segment 301
The thickness of section 301 is H1, and the thickness of interior ring segment 302 is H2,1:1.5≤H1:H2≤1:3.Under normal conditions, H1 <
1.5mm, H2 > 1.5mm, and in the present embodiment, H1=1mm, H2=2mm.
In the present embodiment, rubber ring 32 is linked together by interior ring segment 302 and the outer wall of metal plate 31 by pasting.
Referring to Fig.1, the valve body of the present embodiment includes installation panel 1 and spool 2, and the spool 2 is in " tubulose ", exhaust outlet 21
It is arranged on spool 2, valve block 3 is arranged on spool 2 and is used to open or closes exhaust outlet 21.Panel 1 and spool 2 one are installed
It is body formed；Or, installation panel 1 is linked together with spool 2 by welding；Or, installation panel 1 is threadedly coupled with spool 2；Or, peace
Dress panel 1 is snapped connection with spool 2；Or, installation panel 1 and spool 2 are interference fitted.In the other embodiments of the utility model
In, valve body can only include spool.
It is specific as shown in fig. 7, installation panel 1 and spool 2 are integrally formed: drawing die to one piece of metal plate carry out to
Installation panel 1 and spool 2 are formed after few one-off drawing.It is designed in this way, the junction installed between panel 1 and spool 2 will not
Leakage cigarette phenomenon occurs.When installing panel 1 and spool 2 is integrally formed, it is welded with mounting cylinder on the inner wall of spool 2, mounting cylinder prolongs
Extend to 1 outside of installation panel, and the smoke exhaust pipe for connecting smoke exhaust.
Referring to Fig.1, the valve of the present embodiment further includes bindiny mechanism 4 and the first elastic element 9,4 one end of bindiny mechanism and valve
Internal wall rotation connection, 4 other end of bindiny mechanism and metal plate 31 are rotatablely connected, and bindiny mechanism 4 and valve body also pass through the first bullet
Property element 9 connect, 9 drive connection mechanism 4 of the first elastic element is rotated with respect to valve body, specific: bindiny mechanism 4 include connecting rod with
Be rotatablely connected on the inside of fixed plate, connecting rod one end and spool 2, the connecting rod other end and fixed plate are rotatablely connected, fixed plate also with metal
Plate 31 is rotatablely connected, and the first elastic element 9 is the first torsional spring, and connecting rod is connect with spool 2 by the first torsional spring, the driving of the first torsional spring
Connecting rod is rotated relative to spool 2.In the other embodiments of the utility model, bindiny mechanism only includes connecting rod, connecting rod one end and valve
The rotation connection of in-core side, the connecting rod other end and metal plate are rotatablely connected.
In the present embodiment, valve further includes locating rod and check lock lever, and fixed plate is fixedly connected with metal plate by locating rod, Gu
Fixed board and connecting rod are rotatablely connected by check lock lever, and check lock lever and locating rod are separately positioned in fixed plate by two angles.?
In the other embodiments of the utility model, fixed plate is equipped with first shaft hole and the second axis hole, and connecting rod is equipped with and first shaft hole
The first rotating shaft of cooperation, metal plate are equipped with the second shaft with the second shaft hole matching.
In the present embodiment, valve further includes plectrum, temperature sensing device and the second elastic element, and plectrum and valve body are rotatablely connected, sense
Warm device is fixed on valve body, and second elastic element is the second torsional spring, and the second one end of torsional spring is connect with valve body, the second torsional spring
The other end connect with plectrum and plectrum is driven to offset with temperature sensing device, and plectrum is equipped with clamping portion, and bindiny mechanism is equipped with and card
The clamping engagement portion that socket part matches, when temperature sensing device work and the closing exhaust outlet 21 of valve block 3, clamping portion insertion clamping is matched
Conjunction portion.In the present embodiment, the clamping portion is clamping block, and clamping block and plectrum are rotatablely connected, and the clamping engagement portion is card slot,
The clamping block and card slot elasticity fasten；In other embodiments, the clamping portion be fixture block, the fixture block from the plectrum to
It extends to form outside, the clamping engagement portion is hole, and the fixture block can be inserted into hole.
In the present embodiment, the temperature sensing device may include the first metal plate, the second metal plate and be used to connect the first gold medal
Belong to the meltable solder of plate and the second metal plate, the first metal plate is fixed on valve body, and the second metal plate offsets with plectrum, meltable pricker
Material includes the solders such as secret base, indium base, tinbase, cadmium base, zinc-base and lead base, after meltable brazing filler metal melts, the second metal plate and first
Metal plate separation, when the second metal plate is separated with the first metal plate, the second torsional spring drives plectrum movement, to realize that plectrum passes through
Bindiny mechanism's band moving valve plate 3 closes exhaust outlet 21, when plectrum closes exhaust outlet 21 by bindiny mechanism's band moving valve plate 3, fixture block
It is inserted into card slot；The temperature sensing device can also be can deform after memory metal, memory metal reach deformation temperature, memory gold
For the temperature of category since deformation temperature when Slow cooling, memory metal can restore the shape to deformation.
Referring to Fig. 5, the valve of the present embodiment further includes operating stick 5 and fixture block 6, and 5 one end of operating stick is prolonged after installation panel 1
Extend to outside valve body, fixture block 6 is arranged in the other end of operating stick 5, and operating stick 5 drives fixture block 6 to move back and forth, with adjust fixture block 6 with
Spacing distance between panel 1 is installed, specific: operating stick 5 connects drive rod 7, and drive rod 7 connects 8 upper end of driver plate, transmission
8 lower end of plate and valve body lower end are rotatablely connected, and fixture block 6 and driver plate are rotatablely connected, and operating stick 5 drives driver plate 8 by drive rod 7
It is rotated relative to valve body, to realize that driver plate 8 drives the opposite installation panel 1 of fixture block 6 to move.In the other embodiments of the utility model
In, operating stick and fixture block are rotatablely connected.
In addition, operating stick and fixture block can be adjusted bar and reed substitution, tool in the other embodiments of the utility model
Body, the valve further includes adjusting rod and reed, and described reed one end is connected on the valve body, and described adjusting rod one end is located at
In the spool, which offsets after running through the spool with the reed other end, and the adjusting rod is axially past
Multiple movement, it is described " to adjust the reed other end and installation to adjust the reed other end and install the angle between panel
Angle between panel " means that flexible deformation occurs for adjusting rod axial direction actuating spring, to increase the reed other end and spool
Between spacing distance, since reed one end is connected to valve body, (reed one end be can connect on the outer wall of spool, reed one end
Also it can connect on installation panel, if valve body further includes other component, reed one end can also be connected to other portions
On part) on, therefore, after the spacing distance increase between the reed other end and spool, between the reed other end and installation panel
Angle will become smaller, to realize that valve is clamped on the side wall of exhaust duct；Adjusting rod sheds the active force of actuating spring, to reduce spring
Spacing distance between the piece other end and spool, since reed one end is connected on valve body, in the reed other end and spool
Between spacing distance reduce after, the reed other end and installation panel between angle will become larger, to facilitate valve from exhaust duct
It removes.
Embodiment two
Referring to Fig. 6, valve includes valve body and valve block 3, and valve body is equipped with exhaust outlet 21, and valve block 3 is arranged on valve body and is used for
Exhaust outlet 21 is turned on or off, when valve block 3 closes exhaust outlet 21, is equipped between the house of valve and exhaust duct for exchanging
The path of gas will be disconnected；When valve block 3 opens exhaust outlet 21, the oil smoke for being equipped with the premises of valve can pass through exhaust outlet
21 enter in exhaust duct.
Referring to Fig. 6, the valve body of the present embodiment includes the spool 2 installing panel 1 and being arranged on installation panel 1, the valve
Core 2 is in " tubulose ", and exhaust outlet 21 is arranged on spool 2, and valve block 3 is arranged on spool 2 and is used to open or closes exhaust outlet
21。
In the present embodiment, valve block includes the metal plate being arranged on valve body and the rubber ring that is arranged on metal plate outer wall,
When valve block closes exhaust outlet, metal plate and rubber ring offset with valve body respectively.
With embodiment one the difference is that: valve further includes temperature sensing device and automatic mechanism for locking up 4, automatic mechanism for locking up 4
Movable to be arranged on spool 2 and offset with valve block 3, installation panel 1 limits position of the valve block 3 with respect to spool 2 by temperature sensing device
It sets, after temperature sensing device work, automatic mechanism for locking up 4 pushes valve block 3 to close exhaust outlet 21.
In the present embodiment, automatic mechanism for locking up 3 includes lock bolt, shaft and third elastic element, and lock bolt and installation panel 1 are logical
Shaft rotation connection is crossed, the third elastic element is third torsional spring, and third torsional spring is for connecting lock bolt and installation panel 1, sense
After warm device work, third torsional spring drives the axis rotation of lock bolt around the shaft, so that lock bolt pushes valve block 3 to close exhaust outlet 21；
Either, automatic mechanism for locking up includes lock bolt and shaft, and lock bolt and installation panel 1 are rotatablely connected by shaft, the weight of the lock bolt
The heart is located at the inside of shaft, and after temperature sensing device work, axis rotation of the lock bolt under self gravitation effect around the shaft simultaneously pushes valve
Piece 3 closes exhaust outlet 21.In the other embodiments of the utility model, third elastic element can be tension spring；Either, third
Elastic element can be pressure spring.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, those skilled in the art should be understood that the utility model includes but is not limited to attached drawing and specific embodiment above
Described in content.The modification of any function and structure principle without departing from the utility model is intended to be included in claims
In range.
Claims (10)
1. valve, including valve body and valve block, the valve body is equipped with exhaust outlet, the valve block be arranged on valve body and be used to open or
Person closes the exhaust outlet, which is characterized in that the valve block includes the metal plate being arranged on the valve body and is arranged described
The rubber ring of metal plate outer wall, when the valve block closes the exhaust outlet, the outer profile of the metal plate and the rubber ring
Outer profile offset respectively with the valve body.
2. valve as described in claim 1, which is characterized in that the rubber ring includes the interior ring segment being arranged on the metal plate
With the outer ring segment being arranged on the outside of the interior ring segment, the thickness of interior ring segment described in the thickness < of the outer ring segment.
3. valve as claimed in claim 2, which is characterized in that the thickness of the outer ring segment is H1, the thickness of the interior ring segment
Degree is having a size of H2,1:1.5≤H1:H2≤1:3.
4. valve as described in claim 1, which is characterized in that the rubber ring is pasted outside the metal plate by heat pressing process
On wall.
5. the valve as described in one of Claims 1-4, which is characterized in that the rubber ring is from middle position to marginal position edge
It is axially gradually inclined outwardly.
6. the valve as described in one of Claims 1-4, which is characterized in that the valve further includes bindiny mechanism and the first elasticity member
Part, described bindiny mechanism one end and the valve interior wall are rotatablely connected, and bindiny mechanism's other end and the metal plate rotate
Connection, first elastic element connect the bindiny mechanism with the valve body and for driving the bindiny mechanism opposite described
Valve body rotation.
7. valve as claimed in claim 6, which is characterized in that the valve further includes plectrum, temperature sensing device and the second elastic element,
The plectrum and the valve body are rotatablely connected, and the temperature sensing device is fixed on the valve body, second elastic element one end
It is connect with the valve body, the second elastic element other end connect with the plectrum and drive the plectrum and the temperature-sensitive to fill
It sets and offsets.
8. valve as claimed in claim 7, which is characterized in that the plectrum is equipped with clamping portion, and the bindiny mechanism is equipped with
The clamping engagement portion to match with the clamping portion, when temperature sensing device work and valve block closing exhaust outlet, the clamping portion
It is inserted into the clamping engagement portion.
9. the valve as described in one of Claims 1-4, which is characterized in that the valve body includes installation panel and spool, the row
Port is arranged on the spool, and the installation panel and the spool are integrally formed；Or, the installation panel and the spool
It is linked together by welding；Or, the installation panel is threadedly coupled with the spool；Or, the installation panel and the spool
It snaps connection；Or, the installation panel and the spool are interference fitted.
10. valve as claimed in claim 9, which is characterized in that the valve further includes operating stick and fixture block, described operating stick one end
It is extended to outside the valve body after the installation panel, the other end of the operating stick, the operation is arranged in the fixture block
Bar drives the fixture block to move back and forth, to adjust the spacing distance between the fixture block and the installation panel；Or, the valve is also
Including adjusting rod and reed, described reed one end is connected on the valve body, and described adjusting rod one end is located in the spool, should
The adjusting rod other end offsets after running through the spool with the reed other end, the adjusting rod axially reciprocating, to adjust
Angle between the reed other end and installation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820415001.6U CN208268423U (en) | 2018-03-26 | 2018-03-26 | valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820415001.6U CN208268423U (en) | 2018-03-26 | 2018-03-26 | valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268423U true CN208268423U (en) | 2018-12-21 |
Family
ID=64675884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820415001.6U Active CN208268423U (en) | 2018-03-26 | 2018-03-26 | valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268423U (en) |
-
2018
- 2018-03-26 CN CN201820415001.6U patent/CN208268423U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Denomination of utility model: Auto-control oil feeling valve Granted publication date: 20181221 License type: Exclusive License Record date: 20200727 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Date of cancellation: 20201113 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000595 Denomination of utility model: valve Granted publication date: 20181221 License type: Exclusive License Record date: 20201113 |