CN108443265A - Compressed air engine with pooling feature - Google Patents

Compressed air engine with pooling feature Download PDF

Info

Publication number
CN108443265A
CN108443265A CN201810210209.9A CN201810210209A CN108443265A CN 108443265 A CN108443265 A CN 108443265A CN 201810210209 A CN201810210209 A CN 201810210209A CN 108443265 A CN108443265 A CN 108443265A
Authority
CN
China
Prior art keywords
piston
bar
compressed air
cylinder block
pressure
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.)
Granted
Application number
CN201810210209.9A
Other languages
Chinese (zh)
Other versions
CN108443265B (en
Inventor
胡万锡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wu Yu Lu
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810210209.9A priority Critical patent/CN108443265B/en
Publication of CN108443265A publication Critical patent/CN108443265A/en
Application granted granted Critical
Publication of CN108443265B publication Critical patent/CN108443265B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/005—Filling or draining of fluid systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/857—Monitoring of fluid pressure systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)

Abstract

The invention belongs to engine arts, and in particular to a kind of compressed air engine with pooling feature, piston can reduce the fluctuation of stress when air source output pressure changes, improve the stability of operation；Including：Compressed gas source container, cylinder block, piston component, switching device, sensor and controller, piston component includes the piston rod of piston head and set rod-type, piston rod includes outer bar and interior bar, it is interior, buffer is equipped in gap between outer bar, buffer is one flexible, can inflation/deflation air bag, air bag passes through an Air filling and discharging valves and compressed gas source reservoir, in the pressure of output gas increased moment, the outer end face of outer bar is in the case where stress is uprushed, air bag is inflated, outer bar is set to obtain the cushioning effect of bigger in gap, to keep the force stability of interior bar unaffected, ensure the stabilization of the output of piston rod.

Description

Compressed air engine with pooling feature
Technical field
The invention belongs to engine art, more particularly to a kind of compressed air engine with pooling feature.
Background technology
The engine of single-cylinder, also referred to as pneumatic motor or compressed air engine are operated using the pressure energy of compressed gas source Machinery, such as：The structure of the patented product pneumatic type engine of Zhang Xun, electronic valve control porthole leak informaton frequency, make in compressed gas bucket Compressed gas by exhaust outlet be discharged through air intake push piston, then by gas outlet be discharged and enter compressed gas bucket through air inlet, It pushes steam-cylinder piston by compressed gas by generates kinetic energy (referenced patent document CN102477870A).
The patented product of Geng Huitang is using solar energy as the generating set of power, and the medium in heat-exchange tube is by solar energy heating Pipe heats, until boiling, after steam pressure is more than the suction-combining force of magnet, instantaneous burst makes piston rush upwards, and passes through song The linear motion of piston is become circular motion by handle link mechanism etc., drives generator operation power generation, when piston whereabouts is blocked up again Firmly after gas nozzle, after steam pressure is again above the suction-combining force of magnet piston need to be rushed to (referenced patent text again upwards Offer CN101230787A).
A kind of low energy consumption groover of patented product of Hunan long letter construction group Co., Ltd, engine system are pneumatically to draw It holds up, including air pressure pump, compressed air cylinder etc., the compressed air cylinder inside division is the higher-pressure region being disposed over and sets The low-pressure area in lower section is set, compressed air (the referenced patent document of different pressures can be selected according to rotating speed CN105804796A)。
The energy-efficient piston type motor that a kind of Novel air of patented product, the magnetic knot of BJ University of Aeronautics ＆ Astronautics close, pressure The air consumption of contracting air is greatly reduced, and is acted on using the energy storage of Magnetomotive device, and supplementary compressed air acting makes it with interval Formula supplies drive rotor rotation, can significantly improve efficiency, significantly decrease air consumption (referenced patent document CN103061814A).
Invention content
The present invention provides a kind of compressed air engine adjusting air source output pressure according to operating condition, and piston has buffer Structure improves the operation of piston and compressed air engine entirety for when air source output pressure changes, reducing the fluctuation of the stress of piston Stability.
It includes compressed gas source container, cylinder block, piston component, and compressed gas source container includes low-pressure tank and pressure pan, Piston component moves back and forth under the action of the output gas of compressed gas source container in cylinder block；
It further includes,
Switching device is low for selecting or switching for the control valve in the output gas circuit of low-pressure tank and pressure pan Press one of tank or pressure pan as the air source to cylinder block output gas；
Sensor, the rotating speed for monitoring compressed air engine and/or load；
Controller, the operation of the data control switching device for being arrived according to Sensor monitoring, when the rotating speed of compressed air engine And/or load, when being less than predetermined value, controller controls switching device and selects low-pressure tank to cylinder block gas transmission, works as compressed air engine Rotating speed and/or load be more than predetermined value when, controller control switching device be switched to pressure pan to cylinder block gas transmission；
Piston component includes the piston rod of piston head and set rod-type, and piston rod includes outer bar and interior bar, and interior bar is sleeved on outer bar It is interior, there are a gap between the outer end of interior bar and the inner end of outer bar, buffer is equipped in gap, buffer is one soft Property, can inflation/deflation air bag, air bag by an Air filling and discharging valves and compressed gas source reservoir, one end of air bag and interior bar Outer end is fixedly connected, and after inflation, the other end of air bag and the inner end of outer bar abut against,
Controller is configured as：
When the rotating speed of Sensor monitoring to compressed air engine and/or load are more than predetermined value, controller first controls inflation/deflation Valve inflates buffer, and the cushion performance of buffer is made to become larger, and after delay scheduled time, controller controls switching device switching again To pressure pan to cylinder block gas transmission, in the pressure increased moment of output gas, outer bar in the case where stress is uprushed, So that outer bar is obtained the cushioning effect of bigger in gap, to keep the force stability of interior bar unaffected, ensures piston rod The stabilization of output；When the rotating speed of Sensor monitoring to compressed air engine and/or load drop to predetermined value or less, controller control is filled Vent valve deflates to buffer, and controls switching device simultaneously and be switched to low-pressure tank to cylinder block gas transmission.
The beneficial effects of the invention are as follows：Compressed air engine can adjust air source output pressure according to operating condition, and in air pressure The fluctuation for reducing the stress of piston when variation, improves the operation stability of piston and compressed air engine entirety.
Description of the drawings
Fig. 1 shows the structural schematic diagram of compressed air engine；
Fig. 2 shows the structural schematic diagrams of piston rod.
Specific implementation mode
1-2 with reference to the accompanying drawings, the function that the structure of this system is described in detail and is realized.
Compressed air engine comprising compressed gas source container 1, cylinder block 2, piston component 3, compressed gas source container 1 include low Press tank 1-1 and pressure pan 1-2, piston component 3 past in cylinder block 2 under the action of the output gas of compressed gas source container 1 Multiple movement；
It further includes,
Switching device 4, for control valve in the output gas circuit of low-pressure tank 1-1 and pressure pan 1-2, for selection or Switch one of low-pressure tank 1-1 or pressure pan 1-2 as the air source to 2 output gas of cylinder block；
Sensor 5, the rotating speed for monitoring compressed air engine and/or load；
Controller 6, the operation of the data control switching device 4 for being monitored according to sensor 5, when turning for compressed air engine Speed and/or load be when being less than predetermined value, and controller 6 controls switching device 4 and selects low-pressure tank 1-1 to cylinder block gas transmission, when When the rotating speed of compressed air engine and/or load are more than predetermined value, controller 6 controls switching device 4 and is switched to pressure pan 1-2 to cylinder Cylinder body gas transmission；
Piston component 3 includes piston head 7 and covers the piston rod 8 of rod-type, and piston rod 8 includes outer bar 9 and interior bar 10, interior bar 10 It is sleeved in outer bar 9, there are a gap between the outer end and the inner end of outer bar 9 of interior bar 10, buffer 11 is equipped in gap, Buffer 11 be one it is flexible, can inflation/deflation air bag, air bag passes through an Air filling and discharging valves 12 and compressed gas source container 1 and connects Logical, one end of air bag is fixedly connected with the outer end of interior bar 10, after inflation, the inner end of the other end and outer bar 9 of air bag It abuts against,
Controller 6 is configured as：
When sensor 5 monitors that the rotating speed of compressed air engine and/or load are more than predetermined value, controller 6 first controls charge and discharge Air valve 12 inflates buffer 11, so that the cushion performance of buffer 11 is become larger, after delay scheduled time, controller 6 controls again to be cut Changing device 4 is switched to pressure pan 1-2 to cylinder block gas transmission, in the pressure increased moment of output gas, outer bar 9 by In the case that power is uprushed, outer bar 9 is made to obtain the cushioning effect of bigger in gap, to make the force stability of interior bar 10 not by It influences, ensures the stabilization of the output of piston rod 3；Monitor that the rotating speed of compressed air engine and/or load drop to predetermined value in sensor 5 When following, controller 6 controls Air filling and discharging valves 12 and deflates to buffer 11, and controls switching device 4 simultaneously and be switched to low-pressure tank 1-1 To cylinder block gas transmission.
One skilled in the art would recognize that without departing substantially from the spirit and scope of the invention as describing in general manner, Various variations and/or modification can be carried out to invention shown in each specific embodiment.Therefore, in terms of all For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent It is explicitely stated in claim or each embodiment here.

Claims (2)

1. a kind of compressed air engine with pooling feature adjusts the output pressure of air source according to operating condition, which is characterized in that There is piston buffer gear, the fluctuation for reducing piston stress to provide operation stability.
2. a kind of compressed air engine with pooling feature comprising compressed gas source container, cylinder block, piston component, compressed gas Source container includes low-pressure tank and pressure pan, and piston component is under the action of the output gas of compressed gas source container in cylinder block It moves back and forth；
It is characterized in that,
Switching device is the control valve in the output gas circuit of low-pressure tank and pressure pan, for selecting or switching low-pressure tank Or one of pressure pan is as the air source to cylinder block output gas；
Sensor, the rotating speed for monitoring compressed air engine and/or load；
Controller, for being arrived according to Sensor monitoring data control switching device operation, when compressed air engine rotating speed and/or When load is less than predetermined value, controller controls switching device and selects low-pressure tank to cylinder block gas transmission, when turning for compressed air engine When speed and/or load are more than predetermined value, controller control switching device is switched to pressure pan to cylinder block gas transmission；
Piston component includes the piston rod of piston head and set rod-type, and piston rod includes outer bar and interior bar, and interior bar is sleeved in outer bar, interior There are a gap between the outer end of bar and the inner end of outer bar, be equipped with buffer in gap, buffer be one it is flexible, Can inflation/deflation air bag, air bag is by an Air filling and discharging valves and compressed gas source reservoir, one end of air bag and the outer end of interior bar Portion is fixedly connected, and after inflation, the other end of air bag and the inner end of outer bar abut against,
Controller is configured as：
When the rotating speed of Sensor monitoring to compressed air engine and/or load are more than predetermined value, controller first controls Air filling and discharging valves pair Buffer is inflated, and so that the cushion performance of buffer is become larger, after delay scheduled time, controller controls switching device and is switched to height again Press tank to cylinder block gas transmission, to which in the pressure increased moment of output gas, outer bar makes outer in the case where stress is uprushed Bar obtains the cushioning effect of bigger in gap, to keep the force stability of interior bar unaffected, ensures the output of piston rod Stabilization；When the rotating speed of Sensor monitoring to compressed air engine and/or load drop to predetermined value or less, controller controls inflation/deflation Valve deflates to buffer, and controls switching device simultaneously and be switched to low-pressure tank to cylinder block gas transmission.
CN201810210209.9A 2018-03-14 2018-03-14 Compressed air engine with pooling feature Active CN108443265B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810210209.9A CN108443265B (en) 2018-03-14 2018-03-14 Compressed air engine with pooling feature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810210209.9A CN108443265B (en) 2018-03-14 2018-03-14 Compressed air engine with pooling feature

Publications (2)

Publication Number Publication Date
CN108443265A true CN108443265A (en) 2018-08-24
CN108443265B CN108443265B (en) 2019-10-25

Family

ID=63195038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810210209.9A Active CN108443265B (en) 2018-03-14 2018-03-14 Compressed air engine with pooling feature

Country Status (1)

Country Link
CN (1) CN108443265B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110067782A (en) * 2019-05-06 2019-07-30 余姚心智新能源科技有限公司 A kind of pressure piston cylinder having emergency braking

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1141396A (en) * 1995-04-25 1997-01-29 速睦喜股份有限公司 Driving loop with fluid presure as power device
CN1151785A (en) * 1994-06-30 1997-06-11 轨道发动机公司(澳大利亚)有限公司 I. C. Engine control
CN102787866A (en) * 2012-08-17 2012-11-21 彭学军 Turbine engine using compressed air as working energy
CN202595294U (en) * 2012-04-24 2012-12-12 北京爱社时代科技发展有限公司 Delay control circuit for crust breaking partial pressure gas supply
CN103085904A (en) * 2013-01-31 2013-05-08 三一重机有限公司 Tension device and track and engineering machinery provided with tension device
CN203081892U (en) * 2012-12-13 2013-07-24 浙江三高自动化设备有限公司 Air cylinder
CN104006021A (en) * 2014-06-12 2014-08-27 苏州劳灵精密机械有限公司 Hinged inner rod type single-acting cylinder
CN204533031U (en) * 2015-01-16 2015-08-05 西南科技大学 A kind of oil hydraulic cylinder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1151785A (en) * 1994-06-30 1997-06-11 轨道发动机公司(澳大利亚)有限公司 I. C. Engine control
CN1141396A (en) * 1995-04-25 1997-01-29 速睦喜股份有限公司 Driving loop with fluid presure as power device
CN202595294U (en) * 2012-04-24 2012-12-12 北京爱社时代科技发展有限公司 Delay control circuit for crust breaking partial pressure gas supply
CN102787866A (en) * 2012-08-17 2012-11-21 彭学军 Turbine engine using compressed air as working energy
CN203081892U (en) * 2012-12-13 2013-07-24 浙江三高自动化设备有限公司 Air cylinder
CN103085904A (en) * 2013-01-31 2013-05-08 三一重机有限公司 Tension device and track and engineering machinery provided with tension device
CN104006021A (en) * 2014-06-12 2014-08-27 苏州劳灵精密机械有限公司 Hinged inner rod type single-acting cylinder
CN204533031U (en) * 2015-01-16 2015-08-05 西南科技大学 A kind of oil hydraulic cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110067782A (en) * 2019-05-06 2019-07-30 余姚心智新能源科技有限公司 A kind of pressure piston cylinder having emergency braking

Also Published As

Publication number Publication date
CN108443265B (en) 2019-10-25

Similar Documents

Publication Publication Date Title
CN100373052C (en) Piston type compressor and method of stepless regulating its transfer quantity
US9752566B2 (en) Air mass control for diaphragm pumps
CN108443265B (en) Compressed air engine with pooling feature
CN106691422B (en) Be applied to sphygmomanometer's valve, integrated air pump and electronic sphygmomanometer
CN110411725A (en) A kind of air spring environmental test automatic inflating pressurizing device
JP5810336B2 (en) Pulsation suppression mechanism
CN203604141U (en) Vacuum pump of vacuum sealer
CN203146212U (en) Wave power generation system
CN208169076U (en) Reciprocating screw rod type gas compression system
US20210172428A1 (en) Compressor and method for conveying and compressing a fluid for conveyance into a target system
CN101498323A (en) Long life energy-saving mute type booster valve
CN204877904U (en) Air compressor
CN106163777B (en) Device for being sealed and inflating to inflatable articles
CN107387469A (en) A kind of improved gas-liquid pressure-boosting cylinder structure
CN108487933A (en) Compressed air engine
CN204877841U (en) Air compressor with a plurality of motors
CN108361072A (en) A kind of single cylinder pneumatic motor
CN108361071A (en) A kind of compressed air engine
CN108533324A (en) A kind of single cylinder pneumatic motor
CN213175956U (en) Two-stage double-cylinder liquid cooling high-pressure air pump
CN2934688Y (en) Gas/liquid pressure booster
CN108361070A (en) A kind of adjustable adaptive compressed air engine of output pressure
JP2011256800A (en) Gas machine, and vehicle using the same, and method for driving gas machine
JP2000265951A (en) Pneumatic vacuum pump
CN108533325A (en) Single cylinder pneumatic motor with high stability piston component

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20190926

Address after: 318050 seven villages, 4 families and 16 households in Luqiao District of Zhejiang City, Taizhou Province

Applicant after: Wu Yu Lu

Address before: 230000 Yaohai District, Hefei City, Anhui Province

Applicant before: Hu Wan Xi

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant