CN112268015A - Casing power contraction invisible fan blade wind wheel and fan - Google Patents

Casing power contraction invisible fan blade wind wheel and fan Download PDF

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Publication number
CN112268015A
CN112268015A CN201911426634.2A CN201911426634A CN112268015A CN 112268015 A CN112268015 A CN 112268015A CN 201911426634 A CN201911426634 A CN 201911426634A CN 112268015 A CN112268015 A CN 112268015A
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CN
China
Prior art keywords
telescopic
fan
fan blades
hub
fan blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911426634.2A
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Chinese (zh)
Inventor
毛永波
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201911426634.2A priority Critical patent/CN112268015A/en
Publication of CN112268015A publication Critical patent/CN112268015A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/088—Ceiling fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/312—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a sleeve power-shrinkable invisible fan blade wind wheel and a fan, which comprise: telescopic fan blades arranged on the hub; the telescopic fan blades are formed by coaxially sliding, telescoping and sleeving a plurality of large and small sleeves, the self gravity or the counterweight force of the plurality of telescopic fan blades is utilized to generate the centrifugal force to extend out the plurality of fan blades, and the motor rolls the pull rope to contract the plurality of telescopic fan blades, so that the automatic cleaning and hiding of the fan blades are completed, and the living space of the electric fan in the air-conditioning era is improved.

Description

Casing power contraction invisible fan blade wind wheel and fan
The application is filed in 2016, 12 and 31, entitled "a telescopic invisible fan blade wind wheel and fan", and has the application numbers as follows: divisional application of the patent application "201611272630. X".
[ technical field ] A method for producing a semiconductor device
The invention relates to a wind wheel, which aims at a wind wheel of an electric fan and a wind wheel of an airplane, in particular to a ceiling fan and a seat fan.
[ background of the invention ]
Along with the upgrading of an air conditioner and the reduction of electricity price, the life of enjoying the air conditioner is cheaper and cheaper, an electric fan may not be considered in high-level decoration, but the top-level decoration is less than the link of air circulation, so that the electric fan still has needs, but when the fan and the high-level decoration are in a considering and accepting stage, the probability of being abandoned is quite high, the fan is saved and also becomes a partner for the electric fan when the decoration needs are good, however, the top-level villa decoration also has air dust, and as in a flat house and a factory, a thick black ash layer can be adhered to long-time moving fan blades, and although the flat house or the factory is also inelegant and unpopular.
[ summary of the invention ]
The invention aims to realize automatic invisibility and automatic cleaning of fan blades and improve the living space of the electric fan in the air-conditioning era.
The invention utilizes the self-gravity or the counterweight force of the multiple sections of telescopic fan blades to cause the centrifugal force to extend out the multiple sections of fan blades and uses the motor to roll the inhaul cable to contract the multiple sections of telescopic fan blades, thereby completing the automatic cleaning and hiding of the fan blades.
The invention adopts the following technical scheme:
stealthy flabellum wind wheel of sleeve pipe power shrink, it includes: the telescopic fan comprises a hub, telescopic fan blades and a contraction device; the telescopic fan blades are formed by coaxially sliding, telescopic and sleeving a plurality of large and small sleeves; the telescopic fan blades are arranged along the radial direction of the hub in the telescopic direction; or the telescopic fan blades are arranged in a way that the telescopic direction is parallel to the radial direction of the hub; the telescopic fan blades are fixed on the hub by using a starting end section or a tail end section and movably extend and retract in an annular array around the circumference of the hub; the telescopic fan blades extend out under the condition of self gravity or extend out under the condition of centrifugal force caused by connecting a counterweight at the telescopic tail end section; one end of the retractor is fixedly connected with the hub or the initial end section of the telescopic fan blade, and the other end of the retractor is connected with the tail end section of the telescopic fan blade to be movably telescopic.
In the design scheme of the sleeve power-contraction invisible fan blade wind wheel, the plurality of sections of large and small sleeves of the telescopic fan blade are flat straight pipes, square straight pipes, prismatic straight pipes, oval straight pipes or arc straight pipes, and the two ends of the pipe orifice are provided with limit stop hasps.
In the design scheme of the sleeve power contraction invisible fan blade wind wheel, the included angle between the expansion direction of the expansion fan blade and the central axis of the hub is less than 90 degrees, so that the wind wheel slides obliquely by means of the self-gravity of the fan blade in a stop state.
In the design scheme of the invisible fan blade wind wheel contracted by the sleeve power, the contraction device is an inhaul cable which is used for rolling and contracting the fan blades; one end of the inhaul cable is connected with the tail end section of the telescopic fan blade to be movably telescopic, and the other end of the inhaul cable is connected with the motor reel; at least one motor is coaxial with the central shaft of the hub and is connected with the delayed power-off device.
Stealthy flabellum fan of sleeve pipe power shrink, it includes: the sleeve power contraction invisible fan blade wind wheel set, the power unit and the rack; the telescopic invisible fan blade wind wheel is connected with a rotating shaft or a rotor of the power unit; the power unit is fixed on the frame, or the stator for the power unit is connected on the frame.
The working principle of the invention is as follows: the self-gravity or the counterweight force of the multiple sections of telescopic fan blades is utilized to cause the centrifugal force to extend out the multiple sections of fan blades and the motor set is used for rolling the inhaul cable to contract the multiple sections of telescopic fan blades, so that the automatic cleaning and hiding of the fan blades are completed.
The invention has the beneficial effects that: the automatic invisibility and the automatic cleaning of the fan blades are realized, and the living space of the electric fan in the air-conditioning era is improved.
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
[ description of the drawings ]
FIG. 1 is a perspective view of a ceiling fan with retractable blades in extended position;
FIG. 2 is a side structure view of the ceiling fan with the retractable blades in an extended state, illustrating that the included angle between the retractable direction of the blades and the central axis of the hub is less than 90 degrees;
FIG. 3 is a perspective cut-away structure of a ceiling fan with retractable blades retracted;
FIG. 4 is a perspective view of the retractable fan blade with the start node fixed to the hub and extended;
FIG. 5 is a top view of the retractable blades in a retracted state secured to the circumference of the bottom hub;
FIG. 6 is a perspective view of the retractable blades fixed to the two sides of the hub in a retracted state;
FIG. 7 is a top hub perspective view;
FIG. 8 is a bottom hub perspective view;
FIG. 9 is a perspective view of the retractable fan blade in a retracted state;
FIG. 10 is a front view of the retractable blades;
FIG. 11 is a side view of the extended state of the retractable blades;
FIG. 12 is an enlarged view of point A of FIG. 11, illustrating the stop buckle at the two ends of the fan blade;
FIG. 13 is an axial elevational view of a multi-section flat straight tube blade;
FIG. 14 is a perspective view of the extended state of the retractable blades of a multi-section flat straight tube.
[ detailed description ] embodiments
As shown in fig. 1, 2, 3, 4, 5, and 6, the sleeve power-shrinking invisible fan blade wind wheel comprises: a hub 0, telescopic fan blades 2 and a contraction device 8; the telescopic fan blade 2 is formed by coaxially sliding, telescopic and sleeving a plurality of large and small sleeves; the telescopic fan blades 2 are arranged along the radial direction of the hub 0 in the telescopic direction; or the telescopic fan blades 2 are arranged in a telescopic direction parallel to the radial direction of the hub 0; the telescopic fan blades 2 are fixed on the hub 0 by a starting end section or a tail end section and movably extend and retract in an annular array around the circumference of the hub 0; the telescopic fan blades 2 extend out under the condition of self gravity or extend out under the condition of centrifugal force caused by connecting a counterweight at the telescopic tail end section; one end of the contraction device 8 is fixedly connected with the hub 0 or the starting end section of the telescopic fan blade 2, and the other end of the contraction device is movably connected with the tail end section of the telescopic fan blade 2.
As shown in fig. 10, 11, 12 and 13, the multi-section large and small sleeves of the retractable fan blade 2 are flat straight tubes, square straight tubes, prismatic straight tubes, oval straight tubes or arc straight tubes, and the two ends of the tube mouth are provided with limit locking hasps.
As shown in fig. 2, the included angle between the extending direction of the retractable fan blade 2 and the central axis of the hub 0 is less than 90 degrees, so that the wind wheel slides obliquely by the self-gravity of the fan blade in a stopped state.
The contraction device 8 is a pull rope which is used for rolling and contracting the fan blades; one end of the stay cable is connected with the tail end section of the telescopic fan blade 2 to be movably telescopic, and the other end of the stay cable is connected with the motor scroll; at least one motor is coaxial with the central shaft of the hub 0 and is connected with the time-delay power-off device.
As shown in fig. 1, 2, 3, 4, 5, and 6, a sleeve powered retractable stealth fan blade includes: the sleeve power contraction invisible fan blade wind wheel set, the power unit and the rack; the telescopic invisible fan blade wind wheel is connected with a rotating shaft or a rotor of the power unit; the power unit is fixed on the frame, or the stator for the power unit is connected on the frame.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present invention, and the above technical contents can be combined to form other technical solutions, and these modifications and decorations, and the formed other technical solutions should also be regarded as the protection scope of the present invention.

Claims (5)

1. Stealthy flabellum wind wheel of sleeve pipe power shrink, it includes: a hub (0), a telescopic fan blade (2) and a contraction device (8); the telescopic fan blades (2) are formed by coaxially sliding, telescopic and sleeving a plurality of large and small sleeves; the telescopic fan blades (2) are arranged along the radial direction of the hub (0) in the telescopic direction; or the telescopic fan blades (2) are arranged in a radial direction parallel to the hub (0) in the telescopic direction; the telescopic fan blades (2) are fixed on the hub (0) by using a starting end section or a tail end section and movably extend and retract in an annular array around the circumference of the hub (0); the telescopic fan blades (2) extend out under the condition of self gravity or extend out under the condition of centrifugal force caused by connecting a counterweight part at the telescopic tail end section; one end of the contraction device (8) is fixedly connected with the hub (0) or the starting end section of the telescopic fan blade (2), and the other end of the contraction device is movably connected with the tail end section of the telescopic fan blade (2) in a telescopic mode.
2. The sleeve power-contracting invisible fan blade wind wheel as claimed in claim 1, wherein: the multiple sections of large and small sleeves of the telescopic fan blades (2) are flat straight pipes, square straight pipes, prismatic straight pipes, oval straight pipes or arc straight pipes, and limiting clamping hasps are arranged at two ends of the pipe orifice.
3. The sleeve power-contracting invisible fan blade wind wheel as claimed in claim 1, wherein: the included angle between the telescopic direction of the telescopic fan blades (2) and the central shaft of the hub (0) is less than 90 degrees, so that the wind wheel obliquely slides by means of the self-gravity of the fan blades in a stop state.
4. The sleeve power-contracting invisible fan blade wind wheel as claimed in claim 1, wherein: the contraction device (8) is a pull rope which rolls and contracts the fan blades; one end of the stay cable is connected with the tail end section of the telescopic fan blade (2) to be movably telescopic, and the other end of the stay cable is connected with the motor scroll; at least one motor is coaxial with the central shaft of the hub (0) and is connected with a time-delay power-off device.
5. Stealthy flabellum fan of sleeve pipe power shrink, it includes: the sleeve power-shrinking invisible fan blade wind wheel set, the power unit and the frame of claims 1 to 4; the telescopic invisible fan blade wind wheel is connected with a rotating shaft or a rotor of the power unit; the power unit is fixed on the frame, or the stator for the power unit is connected on the frame.
CN201911426634.2A 2016-12-31 2016-12-31 Casing power contraction invisible fan blade wind wheel and fan Pending CN112268015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911426634.2A CN112268015A (en) 2016-12-31 2016-12-31 Casing power contraction invisible fan blade wind wheel and fan

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611272630.XA CN106593944A (en) 2016-12-31 2016-12-31 Telescopic invisible fan blade wind wheel and fan
CN201911426634.2A CN112268015A (en) 2016-12-31 2016-12-31 Casing power contraction invisible fan blade wind wheel and fan

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201611272630.XA Division CN106593944A (en) 2016-12-31 2016-12-31 Telescopic invisible fan blade wind wheel and fan

Publications (1)

Publication Number Publication Date
CN112268015A true CN112268015A (en) 2021-01-26

Family

ID=58582005

Family Applications (6)

Application Number Title Priority Date Filing Date
CN201611272630.XA Pending CN106593944A (en) 2016-12-31 2016-12-31 Telescopic invisible fan blade wind wheel and fan
CN201911426638.0A Pending CN111779704A (en) 2016-12-31 2016-12-31 Fastener plate oblique sliding telescopic invisible fan blade wind wheel and fan
CN201911426608.XA Pending CN111765120A (en) 2016-12-31 2016-12-31 Invisible fan blade wind wheel and fan with obliquely sliding and telescopic sleeves
CN201911426607.5A Pending CN112268014A (en) 2016-12-31 2016-12-31 Casing elastic expansion invisible fan blade wind wheel and fan
CN201911426619.8A Pending CN111810443A (en) 2016-12-31 2016-12-31 Telescopic invisible fan blade wind wheel and fan with sleeve piston cylinder
CN201911426634.2A Pending CN112268015A (en) 2016-12-31 2016-12-31 Casing power contraction invisible fan blade wind wheel and fan

Family Applications Before (5)

Application Number Title Priority Date Filing Date
CN201611272630.XA Pending CN106593944A (en) 2016-12-31 2016-12-31 Telescopic invisible fan blade wind wheel and fan
CN201911426638.0A Pending CN111779704A (en) 2016-12-31 2016-12-31 Fastener plate oblique sliding telescopic invisible fan blade wind wheel and fan
CN201911426608.XA Pending CN111765120A (en) 2016-12-31 2016-12-31 Invisible fan blade wind wheel and fan with obliquely sliding and telescopic sleeves
CN201911426607.5A Pending CN112268014A (en) 2016-12-31 2016-12-31 Casing elastic expansion invisible fan blade wind wheel and fan
CN201911426619.8A Pending CN111810443A (en) 2016-12-31 2016-12-31 Telescopic invisible fan blade wind wheel and fan with sleeve piston cylinder

Country Status (1)

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CN (6) CN106593944A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113187745B (en) * 2020-01-14 2024-03-08 广东美的环境电器制造有限公司 Air supply device
CN112879329A (en) * 2020-12-23 2021-06-01 缪平 Invisible ceiling fan lamp
CN113058389B (en) * 2021-03-01 2023-02-17 江苏蓝遥净水剂有限公司 High-purity polyaluminum chloride liquid preparation device and preparation process
CN117267683B (en) * 2023-10-25 2024-03-26 扬州市东德电气有限公司 Energy-saving intelligent street lamp

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201507480U (en) * 2009-09-22 2010-06-16 新盛世机电制品(中山)有限公司 Fan-leaf connection structure for ceiling fan
US20110044045A1 (en) * 2009-08-19 2011-02-24 General Electric Company OLEDs INTEGRATED INTO FAN BLADES
CN201779063U (en) * 2010-05-19 2011-03-30 威海克莱特菲尔风机有限公司 Vane and hub hinged axial flow impeller
US20110318202A1 (en) * 2010-06-25 2011-12-29 Martec Pty Ltd Ceiling fan
US20120224967A1 (en) * 2011-03-03 2012-09-06 Taylor Radabaugh Elastic and Dust-Clinging Fan Blade Cover and Scent Pocket
CN203603442U (en) * 2013-12-10 2014-05-21 中建四局第三建筑工程有限公司四川分公司 Scaffold telescopic hard protective mesh sheet
CN104411979A (en) * 2012-07-02 2015-03-11 马泰克私人有限公司 Ceiling fan

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1319193A (en) * 1971-04-28 1973-06-06 Folkes Belting Co Ltd Fans
CN2815483Y (en) * 2005-08-17 2006-09-13 虞培清 Blade automatic expanding type mixer
CN2903462Y (en) * 2006-04-29 2007-05-23 华小平 Retractable wind wheel blade of wind power generator set
AU2008320935B2 (en) * 2008-06-10 2012-02-16 Mitsubishi Heavy Industries, Ltd. Blade pitch-angle control apparatus and wind turbine generator
US8784057B2 (en) * 2011-02-28 2014-07-22 The Boeing Company Disc rotor retraction system
CN202132274U (en) * 2011-06-27 2012-02-01 河海大学 Electric fan with retractable fan blades
CN105332947A (en) * 2014-08-07 2016-02-17 襄阳市襄州区第四中学 Electric fan with stretchable fan blades
CN204267366U (en) * 2014-11-15 2015-04-15 温岭市灵其防爆机电有限公司 A kind of flexible controlled flabellum
US9752557B2 (en) * 2015-01-30 2017-09-05 John Nicklas Vertical axis turbine
CN204553270U (en) * 2015-03-13 2015-08-12 刘仕坤 A kind of expansion invisible fan
CN205117772U (en) * 2015-11-07 2016-03-30 陈丽 Flexible stealthy fan
US9528529B1 (en) * 2016-01-11 2016-12-27 Joseph Kraft Existing air circulating fans by utilizing multi-directional blade angles
CN205345318U (en) * 2016-01-23 2016-06-29 蒋开权 Flexible aircraft wing
CN105626394A (en) * 2016-02-02 2016-06-01 上海交通大学 Telescopic fan blade
CN205714574U (en) * 2016-05-16 2016-11-23 北京普华亿能风电技术有限公司 A kind of retractable blades on blower fan
CN206487682U (en) * 2016-12-31 2017-09-12 毛永波 A kind of expansion invisible flabellum wind wheel and fan

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110044045A1 (en) * 2009-08-19 2011-02-24 General Electric Company OLEDs INTEGRATED INTO FAN BLADES
CN201507480U (en) * 2009-09-22 2010-06-16 新盛世机电制品(中山)有限公司 Fan-leaf connection structure for ceiling fan
CN201779063U (en) * 2010-05-19 2011-03-30 威海克莱特菲尔风机有限公司 Vane and hub hinged axial flow impeller
US20110318202A1 (en) * 2010-06-25 2011-12-29 Martec Pty Ltd Ceiling fan
US20120224967A1 (en) * 2011-03-03 2012-09-06 Taylor Radabaugh Elastic and Dust-Clinging Fan Blade Cover and Scent Pocket
CN104411979A (en) * 2012-07-02 2015-03-11 马泰克私人有限公司 Ceiling fan
CN203603442U (en) * 2013-12-10 2014-05-21 中建四局第三建筑工程有限公司四川分公司 Scaffold telescopic hard protective mesh sheet

Also Published As

Publication number Publication date
CN111779704A (en) 2020-10-16
CN111810443A (en) 2020-10-23
CN112268014A (en) 2021-01-26
CN111765120A (en) 2020-10-13
CN106593944A (en) 2017-04-26

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Application publication date: 20210126

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