CN100410545C - Aerating and exhaust device - Google Patents

Aerating and exhaust device Download PDF

Info

Publication number
CN100410545C
CN100410545C CNB2006100537159A CN200610053715A CN100410545C CN 100410545 C CN100410545 C CN 100410545C CN B2006100537159 A CNB2006100537159 A CN B2006100537159A CN 200610053715 A CN200610053715 A CN 200610053715A CN 100410545 C CN100410545 C CN 100410545C
Authority
CN
China
Prior art keywords
air
pore
valve sheet
air pump
aerating
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.)
Active
Application number
CNB2006100537159A
Other languages
Chinese (zh)
Other versions
CN1928419A (en
Inventor
陈校波
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.)
Zhejiang Weibang Polytron Technologies Inc
Original Assignee
陈校波
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 陈校波 filed Critical 陈校波
Priority to CNB2006100537159A priority Critical patent/CN100410545C/en
Priority to PCT/CN2006/003642 priority patent/WO2008037136A1/en
Publication of CN1928419A publication Critical patent/CN1928419A/en
Application granted granted Critical
Publication of CN100410545C publication Critical patent/CN100410545C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/50—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow
    • F04D29/503—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow especially adapted for elastic fluid pumps
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps

Abstract

The invention belongs to aerating goods. In detail it is a filling and releasing equipment for aerating goods, characterized in that air valve, comprising transformational body for air channel, sleeve, spring, upper plate for valve door, lower plate for valve door and sealing gasket, is connected with air pump; groove is opened on the upper plate for valve door and the bottom of the upper plate is bonded with the lower plate; there is a air hole on the lower plate for valve door and by the hole and the mentioned groove air valve for air channel is formed; the upper and lower plates apples hard material to realize flat sealing; there are two air rooms separated to each other in transformational body for air channel and air rooms are connected by air hole, air pump, space in pump base and external air. Filling and releasing are realized in an air channel in the invention, so structure and cubage of the equipment is simple widely; air sealing of the equipment is strengthened and the opportunity of appearing faulty and leakage is decreased by hard material sealing; it is portable, safe and stable by power line setting in pump base.

Description

A kind of aerating and exhaust device
Technical field
The invention belongs to the inflatable substrate category, specifically is a kind of aerating and exhaust device that is used on the inflatable substrate.
Background technique
Many inflatable products are arranged in the market, and inflatable product is being full of under the state of gas because of volumetric expansion can realize its due function, can be convenient to folding storage under the state of gas or goes out to carry having put.The aerating and exhaust device supporting with inflatable product comprises pump, motor-drive pump and built-in air pump, and independent pump, motor-drive pump all are manually to charge and discharge the external use of gas, waste time and energy, and carry inconvenience, and troublesome poeration is progressively replaced by built-in air pump.Existing built-in air pump often can only be inflated inflatable product, and venting still needs manual operation, and is very inconvenient; The built-in air pump of part changes by many air flues and the structure of other all complexity has realized not only inflatable but also deflatable function, but airtight effect is poor, break down easily, for client's use brings inconvenience, simultaneously because most of product adopts the elastic sealing structure that adds the software diaphragm seal, diaphragm seal easily deforms, easily softening, the long-term use easily of temperature influence worn out, and causes poor air-tightness, reduced the working life of product.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of not only inflatable but also can exit and built-in aerating and exhaust device convenient and swift, time saving and energy saving, good airproof performance.
Technological scheme of the present invention is as follows:
Aerating and exhaust device of the present invention, comprise air pump, air pump seat, panel, knob, it is characterized in that: connect an air valve on the air pump, air valve is by the air flue conversion body, sleeve, spring, last valve sheet, the lower valve sheet, sealing gasket is formed, last valve sheet, the lower valve sheet, sealing gasket is fixed in the pore of air pump seat, described upward valve sheet top is equipped with a spring and is connected with the air flue conversion body, last valve sheet has breach, bottom and lower valve sheet fit together, on the lower valve sheet pore is arranged, the pore of breach on the last valve sheet and lower valve sheet can form gas channel, last valve sheet and lower valve sheet adopt hard material, as pottery etc., thereby realize going up valve sheet, the plane sealing structure of lower valve sheet, the air flue conversion body and the last valve sheet of air valve rotate synchronously; Two air chambers spaced apart from each other are arranged in the air flue conversion body, air chamber communicates by space in pore and air pump, the pump housing seat and ambient atmos, thereby just can control the conducting in space and ambient atmos in the gas of air pump air outlet and the pump housing seat by rotation air flue conversion body, realization charges and discharge gas and finishes in same air flue.
Air flue conversion body of the present invention is " Z " type structure, the side has control ambient atmos and the pore of inflating the conducting of body internal gas, and there is a sleeve air flue conversion body outside, the sleeve pore is corresponding with the pore of air flue conversion body, communicate with pump housing seat inner space, and link together with the air outlet of air pump; The air chamber side of air pump has the air outlet that is connected with the sleeve pore, the bottom of air chamber that the suction port that communicates with pump housing seat inner space is arranged.
Aerating and exhaust device of the present invention is built-in, charging and discharging gas realizes in same air flue, the conversion and the gas-filled pump that charge and discharge gas are opened and are closed synchronously, simplified the structure and the volume of this aerating and exhaust device greatly, last valve sheet and lower valve sheet adopt the plane sealing structure of hard material, have strengthened the tightness of this device, the hardness height, wear-resistant, ageing-resistant, temperature influence is little, has improved working life greatly, has reduced its probability that break down and that leak air; The present invention replaces manual type in electronic mode, the gas in the inflatable product can be discharged fully totally, and is simple to operate, not only saves time but also laborsaving, and it is efficient and convenient to charge and discharge the gas process, is fit to multiple product and occasion and uses.
Description of drawings
Fig. 1 is the stereogram of aerating and exhaust device of the present invention.
Fig. 2 is the STRUCTURE DECOMPOSITION schematic representation of aerating and exhaust device of the present invention.
Fig. 3 is the inflated condition structural representation of aerating and exhaust device of the present invention.
Fig. 4 is the inflated condition stereogram of aerating and exhaust device of the present invention.
Fig. 5 is the sealing state structural drawing of aerating and exhaust device of the present invention.
Fig. 6 is the sealing state stereogram of aerating and exhaust device of the present invention.
Fig. 7 is the deflated state structural drawing of aerating and exhaust device of the present invention.
Fig. 8 is the deflated state stereogram of aerating and exhaust device of the present invention.
Embodiment
As Fig. 1, shown in 2, a kind of aerating and exhaust device, comprise air pump, air pump seat 4, panel 3, it is characterized in that: connect an air valve on the air pump, air valve is by air flue conversion body 11, sleeve 12, spring 13, last valve sheet 14, lower valve sheet 15, sealing gasket 16 is formed, air flue conversion body 11 is " Z " type structure, last valve sheet 14, lower valve sheet 15, sealing gasket 16 is fixed in the pore 41 of air pump seat 4, described upward valve sheet 14 tops are equipped with a spring 13 and are connected with air flue conversion body 11, last valve sheet 14 has breach, bottom and lower valve sheet 15 fit together, on the lower valve sheet 15 pore is arranged, valve sheet 14 in the rotation, the breach on the last valve sheet 14 and the pore of lower valve sheet 15 can form gas channel, last valve sheet 14 adopts the hard material pottery with lower valve sheet 15, thereby realizes going up valve sheet 14, the plane sealing of lower valve sheet 15; Air flue conversion body 11 sides have control ambient atmos and first pore 111, second pore 112 of inflating the conducting of body internal gas, and there is a sleeve 12 air flue conversion body 11 outsides, there are the 3rd pore 121, the 4th pore 122 in sleeve 12 sides, corresponding with first pore 111, second pore 112 of air flue conversion body, the 3rd pore 121 communicates with pump housing seat inner space, and the 4th pore 122 links together with the air outlet of air pump; Air pump is made up of air chamber cover 21, fan blade 22, independent air chamber 23, motor 24, seal ring 25, motor 24 is fixed on the bottom of independent air chamber 23, the rotating shaft of motor is connected with fan blade 22, air chamber cover 21 is fixed on the top of independent air chamber 23, be fixed on by screw in the inner space of pump housing seat, the suction port 212 that independent air chamber 23 sides have air outlet 211, the bottom has communicates with pump housing seat inner space, the 4th pore 122 of air valve communicates with air pump air outlet 211, and the 3rd pore 121 communicates with space in the air pump seat; The suction port 212 of air pump communicates with space in the air pump seat 4, and the air flue conversion body 11 and the last valve sheet 14 of air valve rotate synchronously, realize the inflation and the venting of inflation body.
Establish opening 31 on the panel 3 of the present invention, be fixed on the pump housing seat 4 by screw.Be useful on the fixing frame 8 that connects up and down on the panel 3, top connects the knob 9 of perforate in the middle of, and the bottom is connected to air flue conversion body 11 by second sealing gasket 6 and second spring 5.Pump housing seat 4 is provided with the pore 41 and the electric wire box 42 that communicate with the inflation body, and pore 41 is circular, and top and air valve link together, and power box 42 is used to store power line, and a wire cover 10 is arranged at its top.
Shown in Fig. 3,4, when aerating and exhaust device of the present invention is inflated the inflation body, the user opens motor control switch 7 starting motors 24 and fan blade 22, and ambient air flow into pump housing seat 4 inner spaces by knob 9, fixing frame 8, first pore 111, the 3rd pore 121 of hollow; The inner space gassy of pump housing seat 4, gas is under the working state of motor and fan blade, enter into air chamber inside from the suction port 212 of independent air chamber 23 bottoms, the air flue that forms between second pore 112 of air outlet 211 and air valve, last valve sheet 14 and lower valve sheet 15 flows into inflatable objects inside.
Shown in Fig. 5,6, when aerating and exhaust device of the present invention is closed, user's rotary knob 9, motor control switch 7 is closed, motor 24 and fan blade 22 quit work, knob 9 drives air flue conversion body 11 with fixing frame 8 and rotates, make first pore 111, second pore 112 of both sides on the air flue conversion body be in closed state with sleeve 12 both sides the 3rd pore 121, the 4th pore 122, when air flue conversion body 11 rotates, valve sheet 14 rotates in the drive, make two air flues on the valve sheet be in closed state, the inflation body is played seal action.
As Fig. 7, shown in 8, when aerating and exhaust device of the present invention is exitted to the inflation body, user's rotary knob 9, motor control switch 7 starting motors 24 and fan blade 22, knob 9 drives air flue conversion body 11 with fixing frame 8 and rotates, make the 4th pore 122 conductings of first pore 111 with the sleeve 12 of air flue conversion body, second pore 112 and 121 conductings of the 3rd pore, going up simultaneously valve sheet 14 rotates, make the air flue conducting of two valve sheets, gas in the inflation body through the pore 41 of pump housing seat 4, lower valve sheet 14, last valve sheet 15, second pore 112, the 3rd pore 121 flows into pump housing seat 4 inner spaces, gas enters air chamber inside by the suction port 212 through independent air chamber 23 bottoms again, through the air outlet 211, the 4th pore 122, first pore 111, fixing frame 8, knob 9 is emitted the external world.
The present invention is provided with power cord box 42 on air pump seat 4, can be used to store connect the power line etc. that power supply makes air pump work, and is because power line is built in the air pump seat, easy to carry, safe and reliable.
Air pump power supply of the present invention also can adopt battery, as storage battery, dryelement cell etc.

Claims (6)

1. aerating and exhaust device, comprise air pump, air pump seat (4), panel (3), knob (9), it is characterized in that: connect an air valve on the air pump, air valve is by air flue conversion body (11), sleeve (12), spring (13), last valve sheet (14), lower valve sheet (15), sealing gasket (16) is formed, last valve sheet (14), lower valve sheet (15), sealing gasket (16) is fixed in the pore (41), described upward valve sheet (14) top is equipped with a spring (13) and is connected with air flue conversion body (11), last valve sheet (14) has breach, bottom and lower valve sheet (15) fit together, the lower valve sheet has pore on (15), the pore of breach on the last valve sheet (14) and lower valve sheet (15) can form gas channel, last valve sheet (14) adopts hard material with lower valve sheet (15), air flue conversion body (11) and last valve sheet (14) rotation synchronously, two air chambers spaced apart from each other are arranged in the air flue conversion body (11), and air chamber is by pore and air pump, interior space of air pump seat (4) and ambient atmos communicate.
2. aerating and exhaust device according to claim 1, it is characterized in that: air flue conversion body (11) is " Z " type structure, air flue conversion body (11) side has control ambient atmos and first pore (111) of inflating the conducting of body internal gas, second pore (112), and there is a sleeve (12) air flue conversion body (11) outside, there is the 3rd pore (121) sleeve (12) side, the 4th pore (122), first pore (111) with the air flue conversion body, second pore (112) is corresponding, the 3rd pore (121) communicates with the air pump seat inner space, and the 4th pore (122) links together with the air outlet (211) of air pump; The air outlet of described air pump (211) is in the side of the independent air chamber (23) of air pump, and the suction port (212) that communicates with the air pump seat inner space is arranged at the bottom of independent air chamber (23).
3. aerating and exhaust device according to claim 1 and 2 is characterized in that: described upward valve sheet (14), lower valve sheet (15) are stupalith.
4. aerating and exhaust device according to claim 1 and 2, it is characterized in that: described air pump is made up of air chamber cover (21), fan blade (22), independent air chamber (23), motor (24), seal ring (25), motor (24) is fixed on the bottom of independent air chamber (23), the rotating shaft of motor is connected with fan blade (22), air chamber cover (21) is fixed on the top of independent air chamber (23), and independent air chamber (23) is fixed in the inner space of air pump seat by screw.
5. aerating and exhaust device according to claim 1 and 2, it is characterized in that: be useful on the fixing frame (8) that connects up and down on the panel (3), fixing frame (8) top is connected with described knob (9), perforate in the middle of the described knob (9), fixing frame (8) bottom is connected to air flue conversion body (11) by second sealing gasket (6) and second spring (5).
6. aerating and exhaust device according to claim 1 and 2 is characterized in that: power cord box (42) is arranged on the air pump seat (4).
CNB2006100537159A 2006-09-28 2006-09-28 Aerating and exhaust device Active CN100410545C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB2006100537159A CN100410545C (en) 2006-09-28 2006-09-28 Aerating and exhaust device
PCT/CN2006/003642 WO2008037136A1 (en) 2006-09-28 2006-12-28 A device for inflating air and releasing air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100537159A CN100410545C (en) 2006-09-28 2006-09-28 Aerating and exhaust device

Publications (2)

Publication Number Publication Date
CN1928419A CN1928419A (en) 2007-03-14
CN100410545C true CN100410545C (en) 2008-08-13

Family

ID=37858494

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006100537159A Active CN100410545C (en) 2006-09-28 2006-09-28 Aerating and exhaust device

Country Status (2)

Country Link
CN (1) CN100410545C (en)
WO (1) WO2008037136A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015054973A1 (en) * 2013-10-18 2015-04-23 上海荣威塑胶工业有限公司 Built-in electric inflation pump

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201486904U (en) * 2009-08-25 2010-05-26 东莞市浩瀚商贸有限公司 Inflatable and exhaustible air pump
CN106762548A (en) * 2016-12-30 2017-05-31 安徽谢佑圣电子科技有限公司 A kind of air bag aerating device
CN107472499B (en) * 2017-08-21 2019-10-11 中国电子科技集团公司第三十八研究所 A kind of integrated aerating and exhaust device for aerostatics
CN208669644U (en) 2018-05-16 2019-03-29 明达实业(厦门)有限公司 A kind of pumping with multichannel charging-discharging function
WO2019102443A1 (en) 2017-11-27 2019-05-31 Intex Industries Xiamen Co. Ltd. Manual inflation and deflation adjustment structure of a pump
CN109055070B (en) * 2018-09-04 2023-05-23 天津农学院 Grape wine fermentation is with pressing skin sediment equipment
CN110513312A (en) * 2019-09-05 2019-11-29 东莞市鸿生五金塑胶科技有限公司 Inflation/deflation air pump
WO2021051472A1 (en) * 2019-09-17 2021-03-25 淮安国润电气有限公司 Built-in air pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413056B1 (en) * 2000-12-18 2002-07-02 Wen San Chou Air compressor having means to selectively control air flow therein
CN2779122Y (en) * 2005-03-04 2006-05-10 柏威美国有限公司 Internally-arranged electric air charging/discharging pump of charged body
JP2006123876A (en) * 2004-10-27 2006-05-18 Asuka Japan:Kk Automatic air pumping device for bicycle tire
US20060140759A1 (en) * 2004-12-29 2006-06-29 Chun-Chung Tsai Air pump
CN2809278Y (en) * 2005-07-25 2006-08-23 梁建伟 Aeration pump
CN200985892Y (en) * 2006-09-28 2007-12-05 陈校波 Inflated and deflated device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2327818Y (en) * 1998-02-25 1999-07-07 宏竹实业股份有限公司 Regulated two chamber air pump structure
US6296459B1 (en) * 2000-02-15 2001-10-02 Intex Recreation Corp. Electric air pump having multiple impellers and method
CN1200206C (en) * 2001-12-30 2005-05-04 王正宗 Air valve device
CN2731153Y (en) * 2004-09-22 2005-10-05 宋荣治 Bidirectional pump
CN2743582Y (en) * 2004-09-30 2005-11-30 巫新财 Gas delivery device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413056B1 (en) * 2000-12-18 2002-07-02 Wen San Chou Air compressor having means to selectively control air flow therein
JP2006123876A (en) * 2004-10-27 2006-05-18 Asuka Japan:Kk Automatic air pumping device for bicycle tire
US20060140759A1 (en) * 2004-12-29 2006-06-29 Chun-Chung Tsai Air pump
CN2779122Y (en) * 2005-03-04 2006-05-10 柏威美国有限公司 Internally-arranged electric air charging/discharging pump of charged body
CN2809278Y (en) * 2005-07-25 2006-08-23 梁建伟 Aeration pump
CN200985892Y (en) * 2006-09-28 2007-12-05 陈校波 Inflated and deflated device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015054973A1 (en) * 2013-10-18 2015-04-23 上海荣威塑胶工业有限公司 Built-in electric inflation pump
US10443602B2 (en) 2013-10-18 2019-10-15 Bestway Inflatables & Material Corp. Built-in electric air pumps for inflating objects

Also Published As

Publication number Publication date
CN1928419A (en) 2007-03-14
WO2008037136A1 (en) 2008-04-03

Similar Documents

Publication Publication Date Title
CN100410545C (en) Aerating and exhaust device
CN101858356B (en) Inflation and deflation control device
US8033800B2 (en) Built-in electric air pump for inflatable product
CN203516155U (en) Build-in electric air pump for inflating air
CN200985892Y (en) Inflated and deflated device
CN201347870Y (en) Air pump capable of filling and exhausting air
CN214499529U (en) Knob type air pump
CN201486904U (en) Inflatable and exhaustible air pump
CN201372940Y (en) Built-in electric air pump for inflatable products
CN201679704U (en) Air charging/discharging control device
CN201121600Y (en) Novel built-in manual setting electric air pump
CN207131607U (en) A kind of single air chamber pressure automatically controls electric gas-filled air pump
CN208619292U (en) A kind of air pump
CN201176943Y (en) Built-in pneumatic and air exhaust pump
CN209569174U (en) A kind of built-in pumping of aerated product
CN202789592U (en) Novel built-in type air charge and discharge pump
CN101317719B (en) Air inflation apparatus
CN114165410A (en) Built-in double-air-passage air charging and exhausting device
CN204900287U (en) Be used for aerifing gas filled electronic air pump of body
CN2731147Y (en) Inflation pump
CN107725436B (en) Double-air-chamber electric inflation air pump
CN102022365B (en) Sliding switched air pump
CN216975276U (en) Miniature inflator pump
CN207145273U (en) A kind of double air chambers or more air chamber pressures automatically control electric gas-filled air pump
CN115467845A (en) Reversing pump capable of quickly inflating and exhausting

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhejiang Jinhua Weibang Plastic Co., Ltd.

Assignor: Chen Xiaobo

Contract fulfillment period: 2008.9.30 to 2013.9.30

Contract record no.: 2008330001874

Denomination of invention: Aerating and exhaust device

Granted publication date: 20080813

License type: Exclusive license

Record date: 20081110

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.30 TO 2013.9.30; CHANGE OF CONTRACT

Name of requester: ZHEJIANG PROVINCE JINHUA WEIBANG PLASTIC CO., LTD.

Effective date: 20081110

TR01 Transfer of patent right

Effective date of registration: 20180423

Address after: 322300 Zhejiang County of Panan province Shanghu town Lingyan Road No. 1

Patentee after: Zhejiang Weibang Polytron Technologies Inc

Address before: 322300 1, Ling Yan Road, Shang Hu Town, Panan County, Zhejiang province (Zhejiang Jinhua Wei Bang Plastic Co., Ltd.)

Patentee before: Chen Xiaobo

TR01 Transfer of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Aerating and exhaust device

Effective date of registration: 20181123

Granted publication date: 20080813

Pledgee: Zhejiang Panan Rural Commercial Bank Co., Ltd.

Pledgor: Zhejiang Weibang Polytron Technologies Inc

Registration number: 2018330000409

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20191210

Granted publication date: 20080813

Pledgee: Zhejiang Panan Rural Commercial Bank Co., Ltd.

Pledgor: Zhejiang Weibang Polytron Technologies Inc

Registration number: 2018330000409

PC01 Cancellation of the registration of the contract for pledge of patent right