CN207514338U - A kind of axial-flow type water control regulating valve - Google Patents
A kind of axial-flow type water control regulating valve Download PDFInfo
- Publication number
- CN207514338U CN207514338U CN201721424980.3U CN201721424980U CN207514338U CN 207514338 U CN207514338 U CN 207514338U CN 201721424980 U CN201721424980 U CN 201721424980U CN 207514338 U CN207514338 U CN 207514338U
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- piston
- valve body
- adjusting
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 29
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010003830 Automatism Diseases 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a kind of axial-flow type water control regulating valve,Including valve body,It is arranged on the inlet and outlet at valve body both ends,Mounted on the first valve seat of water outlet,It is arranged on the regulation valve body of valve inner,The metering pin valve being arranged on inside regulation valve body,Piston ring on regulation valve body and in piston ring and with the piston of the first valve base sealing cooperation,The piston and rings form piston cavity,Connecting pipe and water inlet needle-valve are installed on the piston ring,Regulation valve body is divided by the metering pin valve adjusts exocoel and adjusting inner cavity,The metering pin valve can adjust the adjusting exocoel and the circulation adjusted between inner cavity,The water inlet is connected with piston cavity by needle-valve of intaking,The water outlet is connected with adjusting exocoel by connecting pipe,The adjusting inner cavity is connected with piston cavity,The utility model can effectively promote the control accuracy of regulating valve and weaken cavitation erosion and vibration suffered by the part in valve body.
Description
Technical field
The utility model is related to valve field more particularly to a kind of axial-flow type water control regulating valves.
Background technology
Hydraulic control valve is the valve that opened and closed, adjusts using pipe medium pressure as power.Current hydraulic control valve
It is made of a main valve and the pilot valve set up etc..Pilot valve is acted with the variation of the liquid level and pressure of medium, due to pilot valve type
Very much, can be used alone or several be applied in combination, so that it may so that main valve obtain it is independent to the carry out such as water level and hydraulic pressure and flow
With the function of compound adjusting.
Hydraulic control valve is divided into two class of diaphragm type and piston-type, and operation principle is identical, is all that more than downstream pressure difference is
Power is controlled by pilot valve, makes diaphragm（Piston）Fluid pressure type differential operation, is adjusted completely by hydraulic automatism, so as to make main valve flap complete
Full open completely closes or in adjustment state.
Existing hydraulic control valve is complicated, volume is big, can cause to increase using space in this way, be unfavorable for minimizing.
Since the combination for setting up pilot valve controls, the control stroke that can lead to main valve is elongated, and then controls not direct, not sensitive enough.At present
The greatest problem of hydraulic control valve is that cavitation can occur for the long term device use in valve.So-called cavitation erosion refers to that fluid is throttling
Under effect, throttling device rear end causes liquid to vaporize because pressure drastically declines, and annihilation process then occurs in steam bubble again
In, the phenomenon that intense impact is caused to device microcosmic surface, and then generates noise, vibration, corrosion.Therefore current hydraulic control valve
Service life it is short, it is of high cost.
In consideration of it, it is necessary to design a kind of axial-flow type water control regulating valve to solve the above problems.
Utility model content
The technical problems to be solved in the utility model is：Control accuracy can be promoted and control cavitation erosion and shake by providing one kind
Dynamic axial-flow type water control regulating valve.
In order to achieve the above objectives, the utility model provides following technical solution：A kind of axial-flow type water control regulating valve, including
Valve body, the inlet and outlet for being arranged on valve body both ends, the first valve seat mounted on water outlet, the work mounted on valve inner
Plug ring and the piston coordinated in piston ring and with the first valve base sealing, the piston and rings are formed in piston
Chamber, the axial-flow type water control regulating valve further include the regulation valve body for being arranged on valve inner and are arranged on inside regulation valve body
Metering pin valve, the piston ring are mounted on regulation valve body, and connecting pipe and water inlet needle-valve are equipped on the piston ring, described
Regulation valve body is divided by metering pin valve to be adjusted exocoel and adjusts inner cavity, and the metering pin valve can adjust the adjusting exocoel and described
The circulation between inner cavity is adjusted, the water inlet is connected with piston cavity by needle-valve of intaking, and the water outlet is outer with adjusting
Chamber is connected by connecting pipe, and the adjusting inner cavity is connected with piston cavity.
Further, the regulation valve body is equipped with the installation passage of installation and adjustment needle-valve, and the metering pin valve is included successively
The second valve seat, seal receptacle and the connecting tube of connection valve body and regulation valve body being sealingly mounted in installation passage, the adjusting
Needle-valve is further included with the second valve seat cooperation adjusting spool, is extended beyond with the main part of seal receptacle sealing cooperation and main body
The adjusting rod of connecting tube.
Further, partition board is equipped between the installation passage and adjusting exocoel, the installation passage is equipped with perforation partition board
Horizontal through hole is corresponded to the horizontal through hole of regulation valve body and vertical through-hole and the intercommunicating pore of perforation regulation valve body, the seal receptacle
Position be equipped with step groove, the horizontal through hole and step groove form circular passage and connects adjusting exocoel and connecting pipe；The tune
Spool is saved to move back and forth along the direction of vertical through-hole；The adjusting inner cavity is surrounded by seal receptacle, the second valve seat and adjusting spool,
The intercommunicating pore connection adjusts inner cavity and piston cavity.
Further, the adjusting spool is into inverted conical or reverse frustoconic；Regulation handle is installed on the adjusting rod.
Further, the regulation valve body is integrally formed with valve body and into hemispherical, if the piston ring passes through bolt stem
Sealing is fixed on regulation valve body.
Further, described piston ring one end is equipped with the installation opening for piston installation, and the installation opening is resisted against the first valve
On seat；The other end of the piston ring is equipped with mounting hole, and the connecting pipe is inserted into piston ring from mounting hole and prolongs across piston
Reach water outlet；The side wall of the piston ring is equipped with several keying mouths, and the keying mouth is close to the installation opening.
Further, the piston be equipped with the annular surface coordinated with the first valve base sealing, the groove opposite with annular surface with
And the perforation through piston, the groove form the piston cavity with piston ring, the connecting pipe passes through the perforation.
Further, gland is installed on first valve seat and is set on the outside of gland and limits the movement of the first valve seat
Retainer ring, first valve seat and gland form seal groove, is equipped in the seal groove and the second sealing of piston seal cooperation
Circle, there are gaps between the seal groove and the second sealing ring.
Further, the tapered portion that the water inlet needle-valve includes adjustment portion and self-regulation portion extends to form, the adjustment portion
On valve body and valve body is pierced by, the tapered portion installation is on the piston ring and in insertion piston ring.
Further, it is arranged with the spring in piston cavity on the connecting pipe.
Compared with prior art, the utility model has at least the following advantages：
1. the piston structure of axial-flow type, medium fluidised form is good, and medium active force will not be acted directly on piston, therefore is subtracting
The generation for the problems such as cavitation, vibrations are avoided during pressure；
2. as soon as the metering pin valve by adjusting a very little, can control entire regulating valve, control accuracy is by passing through piston
The flow velocity of pressure medium is realized inside inner cavity, is a kind of hydraulic control means, can be accurately controlled very much aperture, opening and closing time etc.,
Large size valve driving is not needed to, the control mode of metering pin valve there can be many selections, can be very good to realize wireless intelligent
Control.
Description of the drawings
Fig. 1 is the structure diagram of the axial-flow type water control regulating valve of the utility model.
Fig. 2 is the partial enlarged view of part A in axial-flow type water control regulating valve shown in FIG. 1.
Fig. 3 is the partial enlarged view of part B in axial-flow type water control regulating valve shown in FIG. 1.
Specific embodiment
The structure and utility model content of the axial-flow type water control regulating valve of the utility model are described with reference to Fig. 1 to 3.
A kind of axial-flow type water control regulating valve including valve body 1, is arranged on the water inlet 2 at 1 both ends of valve body and water outlet 3, installation
The first valve seat 4 in water outlet 3 is arranged on 1 inside of valve body and regulation valve body 5 close to water inlet, in regulation valve body 5
Metering pin valve 50, the piston ring 6 on regulation valve body 5 and match in the piston ring 6 and with the sealing of the first valve seat 4
The piston 7 of conjunction.
The position that water inlet 2 and water outlet 3 are corresponded on the valve body 1 is equipped with pressure tap 11.It is installed on the pressure tap 11
There is pressure measurement instrument.
First valve seat 4 is sealingly mounted on the water outlet 3 of valve body 1.Be equipped on first valve seat 4 gland 41 with
And it is set in 41 outside of gland and limits the retainer ring 42 of the first valve seat 4 movement.If the gland 41 is fixed on by bolt stem
On one valve seat 4.The inside of the water outlet 3 is recessed with the card slot of annular.42 part of retainer ring is located in the card slot.It is described
The part of 42 protruding card slot of retainer ring limits the movement of 4 side of the first valve seat.The opposite side of first valve seat 4 is by piston ring 6
Limitation movement.First valve seat 4 combines to form seal groove 43 with gland 41.It is equipped in the seal groove 43 close with piston 7
Envelope the second sealing ring 44 of cooperation.There are gaps between 43 and second sealing ring 44 of seal groove to form self sealing structure, improves
Sealing performance.The pressure tap 11 sequentially passes through the first valve seat 4 and gland 41, and such pressure tap 11 can be connected inside valve body 1.
The regulation valve body 5 is integrally formed with valve body 1, between the two equipped with several supporting ribs（It is not shown）.It is described
Regulation valve body 5 is into hemispherical and is positioned close at water inlet 2.The regulation valve body includes vertical plane and arc surface.The tune
The arc surface of valve body 5 is saved against water inlet 2, such regulation valve body 5 is not only small, but also can also reduce water damage.It is described
Regulation valve body 5 is internally provided with the installation passage of installation and adjustment needle-valve 50.Regulation valve body 5 is divided into adjusting by the metering pin valve 50
Chamber 51 and adjusting exocoel 52.Partition board 53 is equipped between the installation passage and adjusting exocoel 52.The cross section of the partition board 53 is into L
Shape.The installation passage 51 is equipped with the horizontal through hole 54 of perforation partition board 53 and the vertical plane of regulation valve body 5, perforation partition board 53 with adjusting
The intercommunicating pore 56 of the vertical through-hole 55 for saving the arc surface of valve body 5 and the vertical plane for penetrating through regulation valve body.
The metering pin valve 50 include being sealingly mounted at successively the second valve seat 500 in installation passage, seal receptacle 501 and
Connect the connecting tube 502 of valve body 1 and regulation valve body 5.Second valve seat 500, seal receptacle 501 and connecting tube 502 abut
It links into an integrated entity.The metering pin valve 50 further includes the adjusting spool 503 coordinated with the second valve seat 500, is sealed with seal receptacle 501
Main part 504, the main body 504 of cooperation extend beyond the adjusting rod 505 of connecting tube 502 and on adjusting rods 505
Regulation handle 506.
Second valve seat 500 is circlewise and equipped with the adjusting mouth installed for adjusting spool 503.Second valve seat 500
It is arranged on the lower section of installation passage and on the horizontal shoulders of partition board 53.The seal receptacle 501 corresponds to the position of horizontal through hole 54
Step groove 5010 is installed.The horizontal through hole 54 and step groove 5010 form circular passage.The seal receptacle 501 leads to level
The upper and lower ends sealing cooperation in hole 54.Described 502 one end of connecting tube is inserted into the vertical through-hole 55 of installation passage；The other end passes through
Valve body 1 simultaneously connects outside with valve body 1.The other end of the connecting tube 502 is convexly equipped with the retainer ring 507 with 1 secure fit of valve body.
The adjusting spool 503 into inverted conical or reverse frustoconic, match by the adjusting mouth intermediate gap for being inserted into the second valve seat 500
It closes.The adjusting spool 503 is moved back and forth along the direction of vertical through-hole.The length for entering adjusting mouth with adjusting spool 503 increases
Add, the circulation for adjusting inner cavity 51 and adjusting exocoel 52 is reducing.The adjusting spool 503 is also located at adjusting in inner cavity 51, no
Hinder the media flow of adjusting inner cavity 51.The main part 504, and can be relative to close in seal receptacle 501 into cylinder
The sealing of seat 501 is sealed to slide.The adjusting rod 505 into cylinder, be located in connecting tube 502 and be pierced by connecting tube 502 and with tune
Save the assembling cooperation of handle 506.Regulation handle 506 is rotated, and then adjusting rod 505, main part 504 and adjusting spool 503 is driven to do
The reciprocating motion of vertical direction.
The adjusting inner cavity 51 is surrounded by seal receptacle 501, the second valve seat 500 and adjusting spool 503.The adjusting exocoel
52 are surrounded by the arc surface and partition board 53 of regulation valve body 5.The adjusting inner cavity 51 remains with adjusting exocoel 52 and connects.
The piston ring 6 is fixed on by several bolt seals on the vertical plane of regulation valve body 5.The piston ring 6 is into circle
Column.One end of the piston ring 6 is equipped with the installation opening 60 installed for piston 7.The installation opening 60 is resisted against the first valve seat 4
On.The other end of the piston ring 6 be equipped with the mounting hole 61 that is connected with the horizontal through hole 54 of regulation valve body 5 and with pressure release body 5
Intercommunicating pore 56 connect connecting hole 62.The side wall of the piston ring 6 is equipped with several keying mouths 63.The keying mouth 63 is close
The installation opening 60.Connecting pipe 64 and water inlet needle-valve 65 are installed on the piston ring 6.The connecting pipe 64 is from mounting hole 61
It is inserted into piston ring 6 and is extended at water outlet 3 across piston 7.The connection of horizontal through hole 54 adjusts exocoel 52 and connecting pipe
64, i.e. water outlet 3 is connected with adjusting exocoel 52 by connecting pipe 64.The water inlet needle-valve 65 includes adjustment portion 651 and self-regulation
The tapered portion 652 that portion 651 extends to form.The adjustment portion 651 is mounted on valve body 1 and is pierced by valve body 1.The adjustment portion 651
On adjusting nut is installed.The inflow of water inlet needle-valve 65 is adjusted by adjusting nut.The tapered portion 652 is mounted on piston ring
On 6 and it is inserted into piston ring 6.
For the piston 7 into cylinder, one end is equipped with the annular surface 70 with the sealing cooperation of the first valve seat 4.The annular surface
70 can be formed by one end rounded corner or chamfering in piston 7.The utility model is by setting one in one end of piston 7
What the step of annular was formed.The other end of the piston 7 is equipped with groove 71.The other end of the piston 7 is lived with the composition of piston ring 6
Fill in inner cavity 72.I.e. described groove 71 forms the piston cavity 72 with piston ring 6.The water inlet 2 passes through with piston cavity 72
Water inlet needle-valve 65 connects.The adjusting inner cavity 51 is connected with piston cavity 72 by intercommunicating pore 56 with connecting hole 62.The piston
The pressure of inner cavity 72 is mixed to form by the pressure of water inlet 2 and the pressure of water outlet.The piston 7 is additionally provided with along piston 7
The perforation 73 axially penetrated through.The connecting pipe 64 passes through the perforation 73.It is arranged on the connecting pipe 64 positioned at piston cavity
Spring 74 in 72.The mounting hole 61 of the piston ring 6 inwardly protrudes out to form the first spring base 66.Described 74 one end of spring is located at
In first spring base 66.The groove 71 of the piston 7 continues to be recessed with second spring seat 75.The other end of the spring 74
In second spring seat 75.When the spring 74 can ensure 3 no pressure of water inlet 2 and water outlet, 7 and first valve seat of piston
4 sealing cooperations, valve are closed.
The operation principle of the utility model is as follows：
Medium flow direction as shown in Figure 1, the region of upstream pressure P1 and downstream pressure P2 between 7 and first valve seat 4 of piston
Place is as boundary, and upstream pressure P1 slowly enters piston cavity 72 by needle-valve 65 of intaking, and downstream pressure P2 then passes through pilot
Pipe 64, which enters, adjusts exocoel 52.The aperture of spool 503 is controlled to adjust by regulation handle 506, the stream at balance adjustment spool 503
Amount and the flow at water inlet needle-valve 65, can control the pressure P3 of piston cavity 72, piston 7 is on or off, is to be in
Which kind of aperture is constant, these can be realized by controlling the value of P3, that is to say, that can pass through the aperture of metering pin valve 50
It realizes：1. when we need to reduce hydraulic pressure, the aperture at adjusting spool 503 can be subtracted by operating regulation handle 506
Small, the P1 of piston cavity 72 keeps flow of inlet water constant by needle-valve 65 of intaking at this time, but going out at the P2 of piston cavity 72
Water flow reduces, therefore P3 is increased, and valve performs closing motion；When system pressure is reduced to the numerical value of requirement, by regulating valve
The position of core 503 is playbacked to equilbrium position, this equilbrium position can ensure that P3 and P1 and P2 to balancing during the thrust of piston,
Then valve is in that this aperture is constant, and piston is in a kind of dynamic equilibrium state.
In conclusion the above is only the preferred embodiments of the present utility model only, should not the utility model be limited with this
Range.I.e. every simple equivalent changes and modifications made according to the utility model claims book and description all should
Still belong in the range of the utility model patent covers.
Claims (10)
1. a kind of axial-flow type water control regulating valve, including valve body, the inlet and outlet that are arranged on valve body both ends, mounted on water outlet
First valve seat of mouth, the work coordinated mounted on the piston ring of valve inner and in piston ring and with the first valve base sealing
Plug, the piston and rings form piston cavity, it is characterised in that：The axial-flow type water control regulating valve, which further includes, is arranged on valve
The regulation valve body in internal portion and the metering pin valve being arranged on inside regulation valve body, the piston ring are mounted on regulation valve body,
Connecting pipe and water inlet needle-valve are installed, regulation valve body is divided by the metering pin valve adjusts exocoel and adjusting on the piston ring
Inner cavity, the metering pin valve can adjust the adjusting exocoel and the circulation adjusted between inner cavity, the water inlet and work
Plug inner cavity is connected by needle-valve of intaking, and the water outlet is connected with adjusting exocoel by connecting pipe, the adjusting inner cavity and piston
Inner cavity connects.
2. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：The regulation valve body is equipped with installation and adjustment needle
The installation passage of valve, the metering pin valve include the second valve seat, seal receptacle and the company that are sealingly mounted at successively in installation passage
Connect the connecting tube of valve body and regulation valve body, the metering pin valve further includes and the second valve seat cooperation adjusting spool, close with seal receptacle
It seals the main part of cooperation and main body extends beyond the adjusting rod of connecting tube.
3. axial-flow type water control regulating valve as claimed in claim 2, it is characterised in that：Between the installation passage and adjusting exocoel
Equipped with partition board, the installation passage is equipped with the horizontal through hole for penetrating through partition board and regulation valve body and vertical through-hole and perforation regulating valve
The intercommunicating pore of body, the position that the seal receptacle corresponds to horizontal through hole are equipped with step groove, and the horizontal through hole and step groove form ring
The connection of shape channel adjusts exocoel and connecting pipe；The adjusting spool is moved back and forth along the direction of vertical through-hole；The adjusting inner cavity
It is to be surrounded by seal receptacle, the second valve seat and adjusting spool, the intercommunicating pore connection adjusts inner cavity and piston cavity.
4. axial-flow type water control regulating valve as claimed in claim 2, it is characterised in that：The adjusting spool is into inverted conical or falls
Truncated cone-shaped；Regulation handle is installed on the adjusting rod.
5. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：The regulation valve body is integrally formed with valve body
And into hemispherical, the piston ring is fixed on by several bolt seals on regulation valve body.
6. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：Described piston ring one end is equipped with pacifies for piston
The installation opening of dress, the installation opening are resisted against on the first valve seat；The other end of the piston ring is equipped with mounting hole, the connecting pipe
It is inserted into piston ring from mounting hole and extends to water outlet across piston；The side wall of the piston ring is equipped with several keyings
Mouthful, the keying mouth is close to the installation opening.
7. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：The piston is equipped with and the first valve base sealing
The annular surface of cooperation, the groove opposite with annular surface and the perforation through piston, the groove form the work with piston ring
Inner cavity is filled in, the connecting pipe passes through the perforation.
8. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：Be equipped on first valve seat gland with
And the retainer ring of the first valve seat movement is set on the outside of gland and limits, first valve seat forms seal groove with gland, described close
It is equipped in sealing groove and coordinates the second sealing ring with piston seal, there are gaps between the seal groove and the second sealing ring.
9. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：The water inlet needle-valve is including adjustment portion and certainly
The tapered portion that adjustment portion extends to form, the adjustment portion are mounted on valve body and are pierced by valve body, and the tapered portion is mounted on piston
On ring and it is inserted into piston ring.
10. axial-flow type water control regulating valve as described in claim 1, it is characterised in that：It is arranged on the connecting pipe positioned at work
The spring of intracavitary in plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721424980.3U CN207514338U (en) | 2017-10-31 | 2017-10-31 | A kind of axial-flow type water control regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721424980.3U CN207514338U (en) | 2017-10-31 | 2017-10-31 | A kind of axial-flow type water control regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514338U true CN207514338U (en) | 2018-06-19 |
Family
ID=62535596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721424980.3U Withdrawn - After Issue CN207514338U (en) | 2017-10-31 | 2017-10-31 | A kind of axial-flow type water control regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676519A (en) * | 2017-10-31 | 2018-02-09 | 安徽红星阀门有限公司 | A kind of axial-flow type water control regulating valve |
-
2017
- 2017-10-31 CN CN201721424980.3U patent/CN207514338U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676519A (en) * | 2017-10-31 | 2018-02-09 | 安徽红星阀门有限公司 | A kind of axial-flow type water control regulating valve |
| CN107676519B (en) * | 2017-10-31 | 2023-12-26 | 安徽红星阀门有限公司 | Axial-flow type water control regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180619 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180619 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |