CN108061165B - A kind of butterfly valve having current limliting and traffic monitoring function - Google Patents
A kind of butterfly valve having current limliting and traffic monitoring function Download PDFInfo
- Publication number
- CN108061165B CN108061165B CN201711213162.3A CN201711213162A CN108061165B CN 108061165 B CN108061165 B CN 108061165B CN 201711213162 A CN201711213162 A CN 201711213162A CN 108061165 B CN108061165 B CN 108061165B
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- butterfly valve
- fixedly connected
- block
- wall
- sliding block
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of butterfly valves for having current limliting and traffic monitoring function, including butterfly valve pipe, the both ends of the butterfly valve pipe, which pass through flanged joint, water inlet pipe, it is connected with screw rod jointly on the flange at both ends, the left end of the screw rod is threaded with the first nut, the upper end of the butterfly valve pipe is fixedly connected with fixed block, display channel is offered on the fixed block, gag lever post there are two symmetrically being set vertically in the fixed block, and the upper and lower ends of gag lever post are fixedly connected on the inner wall of fixed block, sliding block is slidably connected jointly on two gag lever posts, the upper end of the sliding block is fixedly connected with instruction block, connecting rod is fixedly connected in the middle part of the lower end of the sliding block vertically.Structure of the invention is stablized, good airproof performance, convenient for operation, the control water flow that the design mutual cooperation of two baffles can be more accurate, and have the device for intuitively showing current water flow, consequently facilitating the adjusting of staff uses, it is worthy to be popularized.
Description
Technical field
The present invention relates to butterfly valve technical field more particularly to a kind of butterfly valves for having current limliting and traffic monitoring function.
Background technique
Undeniably, butterfly valve has become one of the valve being most widely used at present.In general, butterfly valve include valve body,
Valve seat, valve rod, flap.That is, the valve seat is fixed in the body cavity, which is located in the inner cavity of the valve seat, flap rotation
Its edge and valve base sealing or opening after turning, and the valve rod is used to that the flap to be driven to be rotated, the top of the valve rod passes through should
The rotating devices such as handle or actuator are connected to after the top of valve body.However, working environment locating for butterfly valve is mostly more
Badly, for example more dirt, high temperature, the pressure medium of circulation be larger, medium has corrosivity etc., and the dimensions of butterfly valve becomes increasingly
Greatly, so that opened butterfly valve is extremely laborious, although butterfly valve has current-limiting function, Current limited Control, therefore, people can not accurately be carried out
Extremely expect occur that a kind of sealing performance is more excellent, current-limiting function is excellent and can intuitively monitor the butterfly valve of flow.
Summary of the invention
The purpose of the present invention is to solve the difference of current limitation effect in the prior art and lack the intuitive device for showing water flow
The problem of, and a kind of butterfly valve for having current limliting and traffic monitoring function proposed.
To achieve the goals above, present invention employs following technical solutions:
The both ends of a kind of butterfly valve having current limliting and traffic monitoring function, including butterfly valve pipe, the butterfly valve pipe pass through method
Orchid is connected with water inlet pipe, is connected with screw rod on the flange at both ends jointly, and the left end of the screw rod is threaded with the first spiral shell
Mother, the upper end of the butterfly valve pipe are fixedly connected with fixed block, offer display channel on the fixed block, symmetrical in the fixed block
Gag lever post there are two setting vertically, and the upper and lower ends of gag lever post are fixedly connected on the inner wall of fixed block, two limits
Sliding block is slidably connected on bar jointly, the upper end of the sliding block is fixedly connected with instruction block, and the lower end middle part of the sliding block is vertical
It is fixedly connected with connecting rod, the connecting rod is fixedly connected with floating block far from one end of sliding block, pastes on the inner wall of the butterfly valve pipe
Conjunction has sealing rubber ring, and the sealing, which is thought to surround on rubber ring, is fitted with multiple clamping close devices, in each clamping close device
Portion is rotatably connected to bolt vertically, and the second nut, and bolt and the second nut thread are equipped on the inner wall of the butterfly valve pipe
It connects, annular baffle is installed in the butterfly valve pipe, the middle vacancy of the annular baffle is equipped with rounded tabs, the annular gear
The left end of piece is fixedly connected with first rotating shaft, and the both ends of the butterfly valve pipe are fixedly connected to valve body, and the first rotating shaft runs through
The inner wall of butterfly valve pipe is simultaneously rotatably connected on the inner wall of left side valve body, and the first rotating shaft is located at the intracorporal part connection of left hand valve
There is the first worm gear mechanism, first worm gear mechanism is through valve body and is connected with the first turntable, the rounded tabs
Right end be fixedly connected with the second shaft, inner wall and rotation of the one end of second shaft far from rounded tabs through butterfly valve pipe
It is connected on the inner wall of right side valve body, second shaft is located at the intracorporal part of right hand valve and is connected with the second worm and gear machine
Structure, second worm gear mechanism is through valve body and is connected with the second turntable.
Preferably, the clamping close device is made of fixture block and card needle two parts, and fixture block uses arcuate structure, the fixture block
One end of close butterfly valve inside pipe wall is equidistant to be fixedly connected with multiple card needles.
Preferably, scale is carved on the right side of the display channel.
Preferably, the both ends of the sliding block are mounted on linear bearing, and the sliding block is sliding by linear bearing and gag lever post
Dynamic connection.
Preferably, the right end of annular baffle position corresponding with the second shaft offers equal with the second shaft diameter
Medium altitude groove.
Preferably, the first rotating shaft and the second shaft pass through deep groove ball bearing and are rotatably connected on the inner wall of valve body.
Preferably, the sliding block, connecting rod and instruction block are made of integrated formed structure.
In the present invention, flange and water inlet pipe are convenient for installing, and installing screw rod additional can be improved the sealing performance of both ends flange,
Screw rod is turned left from the right side on the flange at the both ends being sequentially inserted into, the left end of screw rod is fixed by the first nut, when needing to adjust
When amount of restriction, the first turntable is rotated, the first turntable drives first rotating shaft rotation, first rotating shaft band by the first worm gear mechanism
Dynamic annular baffle is rotated, to carry out current limliting adjusting by the opening angle for adjusting annular baffle, water flow enters
Butterfly valve Guan Zhongke drives floating block to rise, and floating block is moved upwards by connecting rod band movable slider, and limit is played in the setting of gag lever post
Effect then passes through observation instruction block position corresponding with scale to make sliding block that can only realize linear motion up and down, so as to
To get information about the water flow in current butterfly valve pipe, when needing to finely tune, the second turntable is rotated, the second turntable passes through the second snail
Worm and gear mechanism drives the rotation of the second shaft, and rounded tabs rotation is driven after the rotation of the second shaft, can be into after rounded tabs rotation
Row flow rate fine-tuning.Structure of the invention is stablized, good airproof performance, and convenient for operation, the design mutual cooperation of two baffles can be more smart
Quasi- control water flow, and have the device for intuitively showing current water flow, consequently facilitating the adjusting of staff uses, it is worth
It promotes.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the butterfly valve for having current limliting and traffic monitoring function proposed by the present invention；
Fig. 2 is part A enlarged structure schematic diagram in Fig. 1 of the present invention；
Fig. 3 is a kind of butterfly valve pipe cross-section structure signal of butterfly valve for having current limliting and traffic monitoring function proposed by the present invention
Figure；
Fig. 4 is part B enlarged structure schematic diagram in Fig. 3 of the present invention.
In figure: 1 water inlet pipe, 2 flanges, 3 first nuts, 4 screw rods, 5 butterfly valve pipes, 6 scales, 7 floating blocks, 8 connecting rods, 9 are fixed
Block, 10 display channels, 11 gag lever posts, 12 instruction blocks, 13 sliding blocks, 14 valve bodies, 15 first turntables, 16 first worm gear mechanisms, 17
It is first rotating shaft, 18 annular baffles, 19 rounded tabs, 20 second shafts, 21 second worm gear mechanisms, 22 second turntables, 23 close
Seal rubber ring, 24 bolts, 25 second nuts, 26 fixture blocks, 27 card needles.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " the cover ", " embedded ", " connection ", " fixation ",
Terms such as " distributions " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly.For the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Referring to Fig.1-4, a kind of butterfly valve having current limliting and traffic monitoring function, including butterfly valve pipe 5, the both ends of butterfly valve pipe 5
Water inlet pipe 1 is connected with by flange 2, is connected with screw rod 4 on the flange 2 at both ends jointly, the left end of screw rod 4 is threaded with the
One nut 3, the upper end of butterfly valve pipe 5 are fixedly connected with fixed block 9, offer display channel 10 on fixed block 9, symmetrical in fixed block 9
Gag lever post 11 there are two setting vertically, and the upper and lower ends of gag lever post 11 are fixedly connected on the inner wall of fixed block 9, two limits
Sliding block 13 is slidably connected on bar 11 jointly, the upper end of sliding block 13 is fixedly connected with instruction block 12, erects in the middle part of the lower end of sliding block 13
It directly is fixedly connected with connecting rod 8, connecting rod 8 is fixedly connected with floating block 7 far from one end of sliding block 13, pastes on the inner wall of butterfly valve pipe 5
Conjunction has sealing rubber ring 23, and sealing thinks that the middle part of each clamping close device is equal around multiple clamping close devices are fitted on rubber ring 23
It is rotatably connected to bolt 24 vertically, the second nut 25, and 25 screw thread of bolt 24 and the second nut are installed on the inner wall of butterfly valve pipe 5
It connects, annular baffle 18 is installed in butterfly valve pipe 5, the middle vacancy of annular baffle 18 is equipped with rounded tabs 19, annular baffle 18
Left end be fixedly connected with first rotating shaft 17, the both ends of butterfly valve pipe 5 are fixedly connected to valve body 14, and first rotating shaft 17 runs through butterfly valve
The inner wall of pipe 5 is simultaneously rotatably connected on the inner wall of left side valve body 14, and first rotating shaft 17 is located at the connection of the part in left side valve body 14
There is the first worm gear mechanism 16, the first worm gear mechanism 16 is through valve body 14 and is connected with the first turntable 15, rounded tabs
19 right end is fixedly connected with the second shaft 20, and the second shaft 20 runs through the inner wall of butterfly valve pipe 5 far from one end of rounded tabs 19
And be rotatably connected on the inner wall of right side valve body 14, the part that the second shaft 20 is located in right side valve body 14 is connected with the second worm gear
Worm mechanism 21, the second worm gear mechanism 21 is through valve body 14 and is connected with the second turntable 22.
In the present invention, clamping close device is made of fixture block 26 and 27 two parts of card needle, and fixture block 26 uses arcuate structure, fixture block
26 are fixedly connected with multiple card needles 27 close to one end of 5 inner wall of butterfly valve pipe is equidistant, and sealing rubber ring can be fixed on by card needle 27
On the inner wall of butterfly valve pipe 5, scale 6 is carved on the right side of display channel 10, and scale 6 intuitively can accurately observe the height of instruction block 12,
The both ends of sliding block 13 are mounted on linear bearing, and sliding block 13 is slidably connected by linear bearing with gag lever post 11, and linear bearing is just
In installation, mechanical efficiency is high, and the right end of annular baffle 18 position corresponding with the second shaft 20 offers straight with the second shaft 20
The setting of the equal medium altitude groove of diameter, medium altitude groove can reserve rotation space to the second shaft 20, prevent stuck, first rotating shaft 17
It is rotatably connected on by deep groove ball bearing with the second shaft 20 on the inner wall of valve body 14, support is played in the setting of deep groove ball bearing
With fixed effect, to make first rotating shaft 17 and the second shaft 20 that can only realize rotation, sliding block 13, connecting rod 8 and instruction block
12 are made of integrated formed structure, and integrated formed structure has better mechanical performance, durable.
Both ends of the invention are installed by flange 2 and water inlet pipe 1, and then screw rod 4 is turned left from the right side is sequentially inserted into
On the flange 2 at both ends, the left end of screw rod 4 is fixed by the first nut 3, when needing to adjust flow, rotates the first turntable
15, the first turntable 15 drives first rotating shaft 17 to rotate by the first worm gear mechanism 16, and first rotating shaft 17 drives annular baffle
18 are rotated, to carry out current limliting adjusting by the opening angle for adjusting annular baffle 18, water flow enters butterfly valve pipe 5
In floating block 7 can be driven to rise, floating block 7 is moved upwards with movable slider 13 by connecting rod 8, and limit is played in the setting of gag lever post 11
Effect then passes through observation instruction block 12 position corresponding with scale 6 to make sliding block 13 that can only realize linear motion up and down,
So as to get information about the water flow in current butterfly valve pipe 5, when needing to finely tune, the second turntable 22, the second turntable are rotated
22 drive the rotation of the second shaft 20 by the second worm gear mechanism 21, drive 19 turns of rounded tabs after the rotation of the second shaft 20
Dynamic, rounded tabs 19 can carry out flow rate fine-tuning after rotating.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of butterfly valve for having current limliting and traffic monitoring function, including butterfly valve pipe (5), which is characterized in that the butterfly valve pipe (5)
Both ends pass through flange (2) and be connected with water pipe (1), be connected with screw rod (4), the spiral shell jointly on the flange (2) at both ends
The left end of bar (4) is threaded with the first nut (3), and the upper end of the butterfly valve pipe (5) is fixedly connected with fixed block (9), described
It offers on fixed block (9) display channel (10), is symmetrically set vertically there are two gag lever post (11) in the fixed block (9), and limit
The upper and lower ends of bar (11) are fixedly connected on the inner wall of fixed block (9), and sliding connects jointly on two gag lever posts (11)
It is connected to sliding block (13), the upper end of the sliding block (13) is fixedly connected with instruction block (12), erects in the middle part of the lower end of the sliding block (13)
It is directly fixedly connected with connecting rod (8), the connecting rod (8) is fixedly connected with floating block (7), the butterfly far from the one end of sliding block (13)
It is fitted on the inner wall of valve pipe (5) sealing rubber ring (23), is surround on the sealing rubber ring (23) and be fitted with multiple engagings dresses
It sets, the middle part of each clamping close device is rotatably connected to bolt (24) vertically, is equipped on the inner wall of the butterfly valve pipe (5)
Second nut (25), and bolt (24) is threadedly coupled with the second nut (25), is equipped with annular baffle in the butterfly valve pipe (5)
(18), the middle vacancy of the annular baffle (18) is equipped with rounded tabs (19), and the left end of the annular baffle (18) is fixed to be connected
It is connected to first rotating shaft (17), the both ends of the butterfly valve pipe (5) are fixedly connected to valve body (14), and the first rotating shaft (17) is run through
The inner wall of butterfly valve pipe (5) is simultaneously rotatably connected on the inner wall of left side valve body (14), and the first rotating shaft (17) is located at left side valve body
(14) part in is connected with the first worm gear mechanism (16), and first worm gear mechanism (16) runs through valve body (14) simultaneously
It is connected with the first turntable (15), the right end of the rounded tabs (19) is fixedly connected with the second shaft (20), second shaft
(20) one end far from rounded tabs (19) runs through the inner wall of butterfly valve pipe (5) and is rotatably connected on the inner wall of right side valve body (14)
On, second shaft (20) is located at the part in right side valve body (14) and is connected with the second worm gear mechanism (21), and described
Two worm gear mechanisms (21) are through valve body (14) and are connected with the second turntable (22).
2. a kind of butterfly valve for having current limliting and traffic monitoring function according to claim 1, which is characterized in that the engaging
Device is made of fixture block (26) He Kazhen (27) two parts, and fixture block (26) uses arcuate structure, and the fixture block (26) is close to butterfly
One end of valve pipe (5) inner wall is equidistant to be fixedly connected with multiple card needles (27).
3. a kind of butterfly valve for having current limliting and traffic monitoring function according to claim 1, which is characterized in that the display
Scale (6) are carved on the right side of slot (10).
4. a kind of butterfly valve for having current limliting and traffic monitoring function according to claim 1, which is characterized in that the sliding block
(13) both ends are mounted on linear bearing, and the sliding block (13) is slidably connected by linear bearing with gag lever post (11).
5. a kind of butterfly valve for having current limliting and traffic monitoring function according to claim 1, which is characterized in that the annular
The right end of baffle (18) position corresponding with the second shaft (20) offers the medium altitude groove equal with the second shaft (20) diameter.
6. a kind of butterfly valve for having current limliting and traffic monitoring function according to claim 1, which is characterized in that described first
Shaft (17) and the second shaft (20) are rotatably connected on the inner wall of valve body (14) by deep groove ball bearing.
7. a kind of butterfly valve for having current limliting and traffic monitoring function according to claim 1, which is characterized in that the sliding block
(13), connecting rod (8) and instruction block (12) are made of integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213162.3A CN108061165B (en) | 2017-11-28 | 2017-11-28 | A kind of butterfly valve having current limliting and traffic monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213162.3A CN108061165B (en) | 2017-11-28 | 2017-11-28 | A kind of butterfly valve having current limliting and traffic monitoring function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108061165A CN108061165A (en) | 2018-05-22 |
| CN108061165B true CN108061165B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711213162.3A Active CN108061165B (en) | 2017-11-28 | 2017-11-28 | A kind of butterfly valve having current limliting and traffic monitoring function |
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| CN (1) | CN108061165B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000016B (en) * | 2018-10-23 | 2023-11-17 | 镇江市神龙电器管件有限公司 | Two-way butterfly valve with filtering capability |
| CN113207669B (en) * | 2021-05-26 | 2023-09-05 | 搬加(深圳)科技有限公司 | Soilless culture container |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3222061B2 (en) * | 1996-05-27 | 2001-10-22 | 株式会社巴技術研究所 | Drive device for center type butterfly valve |
| CN1782475A (en) * | 2004-12-01 | 2006-06-07 | 宁伟 | Butterfly valve |
| CN102620027B (en) * | 2011-01-26 | 2013-07-03 | 江西华电电力有限责任公司 | Electromagnetic spring type automatic rapid cut-off valve actuating mechanism |
| CN204554012U (en) * | 2015-04-25 | 2015-08-12 | 魏国 | Pumping station pumping conduit protects special air inlet and exhaust valve |
| CN105240543A (en) * | 2015-11-17 | 2016-01-13 | 天津市卡尔斯阀门有限公司 | Novel butterfly valve |
| CN205315733U (en) * | 2016-01-20 | 2016-06-15 | 安徽铜陵科力阀门有限责任公司 | Binary channels butterfly valve |
| CN106246936A (en) * | 2016-08-23 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of butterfly valve of improved structure |
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2017
- 2017-11-28 CN CN201711213162.3A patent/CN108061165B/en active Active
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| CN108061165A (en) | 2018-05-22 |
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