CN102728251A - Water inlet and outlet module of micro-bubble generator - Google Patents

Water inlet and outlet module of micro-bubble generator Download PDF

Info

Publication number
CN102728251A
CN102728251A CN2012102220327A CN201210222032A CN102728251A CN 102728251 A CN102728251 A CN 102728251A CN 2012102220327 A CN2012102220327 A CN 2012102220327A CN 201210222032 A CN201210222032 A CN 201210222032A CN 102728251 A CN102728251 A CN 102728251A
Authority
CN
China
Prior art keywords
inlet channel
inlet
blocks
outlet water
microbubble generator
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
CN2012102220327A
Other languages
Chinese (zh)
Other versions
CN102728251B (en
Inventor
夏少华
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.)
Ningbo Haibo Group Co. Ltd.
Original Assignee
Ningbo Beilun Haibo Precision Machinery Manufacture Co Ltd
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 Ningbo Beilun Haibo Precision Machinery Manufacture Co Ltd filed Critical Ningbo Beilun Haibo Precision Machinery Manufacture Co Ltd
Priority to CN201210222032.7A priority Critical patent/CN102728251B/en
Publication of CN102728251A publication Critical patent/CN102728251A/en
Application granted granted Critical
Publication of CN102728251B publication Critical patent/CN102728251B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Bathtubs, Showers, And Their Attachments (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

The invention relates to a water inlet and outlet module of a micro-bubble generator. The module comprises a block body fixed on a housing of the micro-bubble generator. A water inlet channel, a gas inlet channel and a water discharging channel are provided in the block body. A controlling valve used for controlling the switching of the water inlet channel is arranged on the block body. A ventilation mechanism is connected to one end of the gas inlet channel. Another end of the gas inlet channel communicates with the part of the water inlet channel on the downstream part of the controlling valve. With the module with the structure provided above, an exterior water inlet pipe and an exterior water discharging pipe can be directly connected to and fixed on the water inlet channel and the water discharging channel. Air or other gas can enter the water inlet channel through the ventilation mechanism and the gas inlet channel, when negative pressure formed by water pumping of the compressor pump in the water inlet channel is intelligently utilized, such that the gas in the gas inlet channel is naturally brought into the water inlet channel. With the module provided by the invention, the channels can be firmly connected, and gas can be added according to the requirements, such that better gas bubble water can be obtained, and better deep cleaning functions can be provided by the module.

Description

The Inlet and outlet water module of microbubble generator
Technical field
The present invention relates to a kind of microbubble generator, specifically refer to a kind of Inlet and outlet water module of microbubble generator.
Background technology
Microbubble is the general name to the following bubble of diameter 50 μ m; The application of present this microbubble is very wide; As can be applied to the water treatment field of purification, and utilize the effect of microbubble and coagulant, flocculant, the oil mass material in the oil-polluted water and suspension are doubted gather; Float then to water surface, to reach the separation of dirt.Or be applied in the gas liquid reaction groove at chemical workshop, be used for improving reaction efficiency.But more be; Microbubble is widely used to sanitary bath equipment, like comparatively common gas-bubble bath, utilizes the gas and the aqueous vapor of carrying in the microbubble to contact with the dynamic of skin surface; Can play the effect of cleaning skin, massage human body well, thus very popular.
Water inlet pipe and dissolving that is connected with this compression delivery side of pump and the outlet pipe that links to each other with the outlet of Gas dissolving pipe that existing microbubble generator generally comprises compression pump (being high-pressure hydraulic pump), links to each other with the compression pump import like the Chinese patent Granted publication number are the structure disclosed in " structural improvement of microbubble generation device " of CN201057982Y.During use, water is inhaled in the compression pump, and the blade in compression pump is tentatively sneaked in the water after rotating whipping or compression at a high speed, and air-water mixture is sent to further pressurization mixing in the dissolving again, makes air-water mixture in dissolving, do mixing further.
In above-mentioned microbubble generator, because water inlet pipe and outlet pipe only pass through the housing of microbubble generator simply, so water inlet pipe, outlet pipe are stablized with respect to housing inadequately.Secondly, in order to obtain microbubble, a certain amount of gas must in the water that sucks, be added, like air.But inhaled air is merely the air in the water that is dissolved in the bathtub in the above-mentioned microbubble generator, therefore can't add more air, more can't insert other required gas, like gases such as oxygen, carbon dioxide.Moreover thoroughly discharging is clean though surplus liquid in the microbubble generator after far above bathtub, use this microbubble generator installation position and bubble still can't rely on gravity, to such an extent as to influence bathing health next time.
Summary of the invention
Technical problem to be solved by this invention is the present situation to prior art, provides a kind of structure more reasonable and make things convenient for the Inlet and outlet water module of the microbubble generator that the user controls.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of Inlet and outlet water module of microbubble generator; Comprise the blocks on the housing that is fixed on microbubble generator; It is characterized in that: in this blocks, have intake tunnel, inlet channel and drainage channel; The control valve of the said intake tunnel break-make of control also is installed on described blocks simultaneously; One end of said inlet channel is connected with ventilation mechanism, and the intake tunnel in the other end of this inlet channel and said control valve downstream connects.
Preferably, the air volume regulating valve that can control this inlet channel flow is installed on the described inlet channel, so that can regulate air inflow at any time, to obtain better bubble water.
Preferably, can also be fitted with wireway in the other end of said inlet channel, so that the gas in the inlet channel imports in the intake tunnel swimmingly.
In above-mentioned scenarios; The described mechanism of taking a breath can include the axis hole that is arranged in blocks also can be with respect to the ventilation axle of blocks rotation; Has the cavity that is connected with the other end of above-mentioned inlet channel in this ventilation axle; On this ventilation axle, have a plurality of through holes that are connected with this cavity, on described blocks, have simultaneously to take turns mutually and stay a plurality of scavenge ports that align with these a plurality of through holes.Through rotating the ventilation axle, inlet channel is connected with required scavenge port, thereby can carries required gas for microbubble generator easily, make this microbubble generator have more practicality.
In such scheme, the head of said ventilation axle exposes to described blocks, and on this head, is connected with knob, and the afterbody of this ventilation axle has axial blind hole, and this axial blind hole forms described cavity.Such structure is easy to processing, also is convenient to operation.Certainly, can in blind hole, add plug, make inner chamber be formed on the middle part of transaxle.
In above-mentioned ventilation mechanism, described through hole can have two, is first radial hole and second radial hole; Corresponding, described scavenge port has two, is first scavenge port and second scavenge port, lays respectively on the sidewall and end face of said blocks.Certainly, also can through hole be arranged to three or four as required, corresponding scavenge port also has three or four, to satisfy user's instructions for use.
The gas connection that connects with said first scavenge port is installed on the said blocks, the button of chucking gas connection pipe is installed on this gas connection.So that connect more reliable, safety.
Practical is; Also be provided with alignment pin on the said ventilation axle; Under described first radial hole and the corresponding state of first scavenge port, this alignment pin and said blocks offset, so that the operator intuitively, is in time known the state that first radial hole and first scavenge port align.
In above-mentioned scenarios, the valve body of said control valve dismounting is connected on the described blocks, is connected with the positioning sleeve of tape spool to through hole on this valve body, the spool leading section of said control valve pass behind this positioning sleeve with intake tunnel on the control mouth match.This structure easy accessibility, and the setting of positioning sleeve both can make spool steadily move, and can guarantee that again a large amount of air enter into inlet channel.
In order to realize synchronization action; Convenient control; Can also have the air admission hole that is connected with the intake tunnel in said control valve downstream on the described valve body; The rearward end of above-mentioned spool matches with control mouth on the air admission hole, and the valve core upper sleeve between the rearward end of said positioning sleeve and said spool has back-moving spring.
Compared with prior art; Because the present invention has designed a blocks that has intake tunnel, drainage channel and inlet channel on the housing of microbubble generator; Therefore, outside water inlet pipe, drainpipe can be directly and intake tunnel, drainage channel be connected to a fixed, air or other gas can enter into intake tunnel through take a breath mechanism and inlet channel; And the negative pressure that intake tunnel in produce when utilizing compression pump to draw water dexterously this moment; Gas in the inlet channel is brought in the intake tunnel with taking advantage of a situation,, and can adds gas as required so the firm connection of pipeline is convenient in the present invention; Obtain better bubble water, and make the present invention have better deep layer cleaning effect.
Description of drawings
Fig. 1 is the schematic perspective view of the embodiment of the invention;
Fig. 2 is for removing the schematic perspective view behind the housing among Fig. 1;
Fig. 3 is the partial sectional view of Fig. 2;
Fig. 4 is the enlarged diagram of I part among Fig. 3;
Fig. 5 is the enlarged diagram of II part among Fig. 3;
The partial sectional view that Fig. 6 overlooks for Fig. 3 (the ventilation axle rotates 90 degree backs);
Fig. 7 is the enlarged diagram of III part among Fig. 6.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Extremely shown in Figure 7 like Fig. 1; This microbubble generator includes shell 1, is positioned at the compression pump 2 and the dissolving 3 of shell 1; Wherein shell 1 is made up of cover body that is connected each other 11 and base 12 again, uprightly is fixed with the Inlet and outlet water module on the base, and this module includes blocks 4; In this blocks, have intake tunnel 41, inlet channel 42 and drainage channel 43; Wherein an end of intake tunnel 41 exposes to the cover body 11 of microbubble generator, and at this end water supply connector 5 is installed, so that extraneous water inlet pipe links to each other; The other end 411 of this intake tunnel 41 exposes on the side of blocks, and links to each other with the inlet 21 of compression pump 2 through water inlet tube connector (not shown).
Above-mentioned drainage channel 43 is positioned at the inlet channel below; Its end exposes to the cover body 11 of microbubble generator; And drainage joint 6 is installed at this end; So that extraneous drainpipe links to each other, the other end 431 of this drainage channel 43 exposes on the side of blocks, links to each other with the outlet 32 of dissolving 3 through the drainage connecting pipe (not shown).The inlet 31 of dissolving 3 links to each other with compression delivery side of pump 22 through intermediate duct.
Above-mentioned inlet channel 42 is positioned at the top of intake tunnel 41, and an end of this inlet channel 42 is connected with ventilation mechanism.In the present embodiment; In order to control streamflow and air mass flow better; The control valve 7 and the air volume regulating valve 8 that can control this inlet channel flow of control intake tunnel break-make also are installed in above-mentioned blocks; The intake tunnel 41 in the other end of inlet channel and control valve downstream connects, and is fitted with wireway 9 in the other end of this inlet channel.
The ventilation axle 10 that above-mentioned ventilation mechanism includes the axis hole 44 that is arranged in blocks and can rotate with respect to blocks; Has the cavity that is connected with the other end of above-mentioned inlet channel 42 in this ventilation axle 10; Here, the head of ventilation axle is connected with the knob 20 that is exposed to outside the cover body, and the afterbody of this ventilation axle 10 has axial blind hole 101; This axial blind hole 101 forms the inner chamber of ventilation axle 10; This inner chamber is connected with inlet channel 42 through axis hole 44, and on ventilation axle, has a plurality of through holes that are connected with above-mentioned blind hole, on blocks, has simultaneously to take turns mutually with these a plurality of through holes to stay a plurality of scavenge ports that align.Under a kind of air inlet state, can only be that the scavenge port that wherein a through hole is corresponding with it aligns promptly.In the present embodiment; Through hole has two; Be respectively first radial hole 102 and second radial hole 103, accordingly, on the sidewall of blocks, end face, have with corresponding first scavenge port 45 of this first radial hole and with corresponding second scavenge port 46 of second radial hole; Simultaneously the gas connection 30 that connects with first scavenge port is installed on blocks, the button 40 of chucking gas connection pipe is installed on this gas connection.Utilizing should ventilation mechanism, other required gas of adding in microbubble easily.
In order to improve operating handle, on the ventilation axle, also be provided with alignment pin 50, when first radial hole was corresponding with first scavenge port, this alignment pin and blocks offseted, and had turned to the state that first radial hole and first scavenge port align so that the operator is in time known.
After use; For the surplus liquid that reaches in the microbubble generator thoroughly discharges clean purpose, in the present embodiment, also have additional an air admission hole 71; This air admission hole is positioned on the valve body 72 of control valve 7; Its aperture is greater than the aperture of inlet channel 42, and the valve body 72 of this control valve 7 is threaded on the blocks, valve body 72 internal threads be connected with one have an axially extending bore 74 positioning sleeve 75; The leading section of the spool 73 of control valve is with soft valve plug 76; The leading section of the spool of this control valve passes this positioning sleeve 75 backs and matches with control mouth a on the intake tunnel, and rearward end matches with control mouth b on the air admission hole 71, and the valve core upper sleeve between the rearward end of positioning sleeve and spool has back-moving spring 77; Rearward end to compel spool has the trend about the control mouth b of air admission hole all the time, and this air admission hole 71 is cut off with intake tunnel 41 mutually.
When microbubble generation gas operate as normal, if need to add micro-air, then as long as turning knob; Second scavenge port and second radial hole are aligned, and this moment, air entered into inlet channel through second scavenge port, second radial hole, blind hole successively, then opening controlling valve; The spool leading section of control valve is opened the control mouth a of intake tunnel at this moment, and the rearward end of spool is closed the control mouth b on the air admission hole simultaneously, starts compression pump; Compression pump is when pumps water liquid; Utilize the negative pressure that produces, in the air in inlet channel suction compression pump in the lump, the blade in compression pump is tentatively sneaked in the water after rotating whipping or compression at a high speed; Air-water mixture is sent to further pressurization mixing in the dissolving again, and air-water mixture is further mixed in dissolving.At this moment; The water that comes out from drainage channel is because of containing a large amount of gas, at gondola water faucet abrupt release pressure, makes the unexpected polymerization of the gas that is mixed in the water form tiny microbubble and is creamy white; Carry out bathing with this bubble water, can play the effect of good cleaning, massage skin.
Under above-mentioned state; In the time of need in microbubble, adding oxygen (or other gas), as long as rotate ventilation axle 90 degree, at this moment; First radial hole and first scavenge port align; At this moment, the oxygen that is connected in the oxygen input tube on the gas connection enters into inlet channel through gas connection, first scavenge port, first radial hole, blind hole successively, promptly can obtain the higher bubble water of oxygen composition.
When finishing using, in the time of need the surplus liquid in the microbubble generator and bubble being drained, at this moment; The start-up control valve makes the spool leading section of control valve cut out the control mouth a of intake tunnel, and the rearward end of spool is opened the control mouth b on the air admission hole simultaneously; This moment, a large amount of air got into (in inlet channel, also having air to be inhaled in the intake tunnel this moment certainly) in air admission hole, enter into intake tunnel through the control mouth of air admission hole, the axially extending bore on the positioning sleeve successively along with the startup of compression pump; Be pressed in the dissolving then; Utilize this compressed air that surplus liquid and bubble in the microbubble generator are discharged from drainage channel, thereby such drainage pattern, speed is fast; Draining is thorough, and easy to operate.

Claims (10)

1. the Inlet and outlet water module of a microbubble generator; Comprise the blocks (4) on the housing that is fixed on microbubble generator; It is characterized in that: in this blocks, have intake tunnel (41), inlet channel (42) and drainage channel (43); The control valve (7) of the said intake tunnel break-make of control also is installed on described blocks (4) simultaneously, and an end of said inlet channel is connected with ventilation mechanism, and the intake tunnel in the other end of this inlet channel and said control valve (7) downstream connects.
2. the Inlet and outlet water module of microbubble generator according to claim 1 is characterized in that: the air volume regulating valve (8) that can control this inlet channel flow is installed on the described inlet channel (42).
3. the Inlet and outlet water module of microbubble generator according to claim 1 is characterized in that: also be fitted with wireway (9) in the other end of said inlet channel.
4. according to the Inlet and outlet water module of claim 1 or 2 or 3 described microbubble generators; It is characterized in that: the described mechanism of taking a breath includes the axis hole that is arranged in blocks (4) also can be with respect to the ventilation axle (10) of blocks rotation; Has the cavity that is connected with the other end of above-mentioned inlet channel in this ventilation axle; On this ventilation axle, have a plurality of through holes that are connected with this cavity, on described blocks, have simultaneously to take turns mutually and stay a plurality of scavenge ports that align with these a plurality of through holes.
5. the Inlet and outlet water module of microbubble generator according to claim 4; It is characterized in that: the head of said ventilation axle (10) exposes to described blocks; And on this head, be connected with knob (20); The afterbody of this ventilation axle has axial blind hole (101), and this axial blind hole forms described cavity.
6. the Inlet and outlet water module of microbubble generator according to claim 4, it is characterized in that: described through hole has two, is first radial hole (102) and second radial hole (103); Corresponding, described scavenge port has two, is first scavenge port (45) and second scavenge port (46), lays respectively on the sidewall and end face of said blocks.
7. the Inlet and outlet water module of microbubble generator according to claim 6 is characterized in that: the gas connection (30) that connects with said first scavenge port is installed on the said blocks, the button (40) of chucking gas connection pipe is installed on this gas connection.
8. the Inlet and outlet water module of microbubble generator according to claim 6 is characterized in that: also be provided with alignment pin (50) on the said ventilation axle, under described first radial hole and the corresponding state of first scavenge port, this alignment pin and said blocks offset.
9. according to the Inlet and outlet water module of claim 1 or 2 or 3 described microbubble generators; It is characterized in that: the valve body of said control valve (72) dismounting is connected on the described blocks; Be connected with the positioning sleeve (75) of tape spool on this valve body to through hole (74), the spool leading section of said control valve pass behind this positioning sleeve with intake tunnel on control mouth (a) match.
10. the Inlet and outlet water module of microbubble generator according to claim 9; It is characterized in that: also have the air admission hole (71) that is connected with the intake tunnel in said control valve downstream on the described valve body (72); The rearward end of above-mentioned spool matches with control mouth (b) on the air admission hole, and the valve core upper sleeve between the rearward end of said positioning sleeve and said spool has back-moving spring (77).
CN201210222032.7A 2012-06-27 2012-06-27 Water inlet and outlet module of micro-bubble generator Active CN102728251B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210222032.7A CN102728251B (en) 2012-06-27 2012-06-27 Water inlet and outlet module of micro-bubble generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210222032.7A CN102728251B (en) 2012-06-27 2012-06-27 Water inlet and outlet module of micro-bubble generator

Publications (2)

Publication Number Publication Date
CN102728251A true CN102728251A (en) 2012-10-17
CN102728251B CN102728251B (en) 2014-09-17

Family

ID=46984968

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210222032.7A Active CN102728251B (en) 2012-06-27 2012-06-27 Water inlet and outlet module of micro-bubble generator

Country Status (1)

Country Link
CN (1) CN102728251B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103908396A (en) * 2013-12-30 2014-07-09 明达实业(厦门)有限公司 Control box of massage pool
CN105032223A (en) * 2015-08-13 2015-11-11 宁波市北仑海伯精密机械制造有限公司 Microbubble device
CN105106007A (en) * 2015-08-20 2015-12-02 昆山洁澄纳米科技有限公司 Multifunctional nano-bubble nursing instrument
CN108534361A (en) * 2018-04-25 2018-09-14 芜湖美的厨卫电器制造有限公司 Water heater

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201482630U (en) * 2009-07-27 2010-05-26 厦门英仕卫浴有限公司 Air intake structure of shower nozzle of multifunctional water-outlet sprinkler
CN202715367U (en) * 2012-06-27 2013-02-06 宁波市北仑海伯精密机械制造有限公司 Water inlet/outlet module of microscopic bubble generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201482630U (en) * 2009-07-27 2010-05-26 厦门英仕卫浴有限公司 Air intake structure of shower nozzle of multifunctional water-outlet sprinkler
CN202715367U (en) * 2012-06-27 2013-02-06 宁波市北仑海伯精密机械制造有限公司 Water inlet/outlet module of microscopic bubble generator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103908396A (en) * 2013-12-30 2014-07-09 明达实业(厦门)有限公司 Control box of massage pool
CN103908396B (en) * 2013-12-30 2016-06-08 明达实业(厦门)有限公司 The controlling box of massaging pool
CN105032223A (en) * 2015-08-13 2015-11-11 宁波市北仑海伯精密机械制造有限公司 Microbubble device
CN105106007A (en) * 2015-08-20 2015-12-02 昆山洁澄纳米科技有限公司 Multifunctional nano-bubble nursing instrument
CN108534361A (en) * 2018-04-25 2018-09-14 芜湖美的厨卫电器制造有限公司 Water heater
CN108534361B (en) * 2018-04-25 2024-05-03 芜湖美的厨卫电器制造有限公司 Water heater

Also Published As

Publication number Publication date
CN102728251B (en) 2014-09-17

Similar Documents

Publication Publication Date Title
CN202715367U (en) Water inlet/outlet module of microscopic bubble generator
CN102728251B (en) Water inlet and outlet module of micro-bubble generator
CN104058492B (en) Microbubble water generates method and generation device
CN107583480A (en) Microbubble generator and preparation method thereof
CN203701214U (en) Vapor control device of microbubble generator
JP2011502736A5 (en)
CN203693432U (en) Pressurizer of microbubble generator
CN203976458U (en) Microbubble water generates device
CN105534358A (en) Bathtub with microbubble water function
CN202666720U (en) Discharge structure of micro bubble generator
CN2936243Y (en) Microbubble water generator
CN202666713U (en) Gas inlet structure of microbubble generator
CN202715369U (en) Water inlet structure of microscopic bubble generator
US20120085442A1 (en) Water supply module for hydrotherapy device
CN206228263U (en) A kind of microbubble bathtub
WO2022070045A1 (en) Air passage unit, air passage system, pool body, and massaging pool
CN204973624U (en) Little bubbling machine
CN210753272U (en) Microbubble gondola water faucet
TWM568731U (en) Cleaning device capable of providing micronano hydrogen bubble water
CN109423850A (en) Water supply mechanism and washing machine
CN2852901Y (en) Oxygen-onriching machine for bath tub
CN219920921U (en) Bathtub for children
CN206404611U (en) Overflow-type ozone water apparatus
CN201481755U (en) Multifunctional SPA machine structure
CN207445832U (en) A kind of large size oil smoke air exhauster tail gas filter

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Xia Shaohua

Inventor after: Wang Kai

Inventor after: Wu Haiyun

Inventor before: Xia Shaohua

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: XIA SHAOHUA TO: XIA SHAOHUA WANG KAI WU HAIYUN

C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 315800 Songshan Road, Beilun District, Zhejiang, No. 1299, No.

Patentee after: Ningbo Haibo Group Co. Ltd.

Address before: 315800 Songshan Road, Beilun District, Zhejiang, No. 1299, No.

Patentee before: Beicang Haibo Fine Machinery Mfg. Co., Ltd., Ningbo

CP01 Change in the name or title of a patent holder
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Water inlet and outlet module of microbubble generator

Effective date of registration: 20201214

Granted publication date: 20140917

Pledgee: Bank of Ningbo Co.,Ltd. Beilun sub branch

Pledgor: NINGBO HAIBO GROUP Co.,Ltd.

Registration number: Y2020330001195

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