CN108309125A - Hand has - Google Patents

Hand has Download PDF

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Publication number
CN108309125A
CN108309125A CN201810206568.7A CN201810206568A CN108309125A CN 108309125 A CN108309125 A CN 108309125A CN 201810206568 A CN201810206568 A CN 201810206568A CN 108309125 A CN108309125 A CN 108309125A
Authority
CN
China
Prior art keywords
water storage
pipe
storage device
shell
hand tool
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
CN201810206568.7A
Other languages
Chinese (zh)
Other versions
CN108309125B (en
Inventor
吴承伟
陈佳才
魏广路
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.)
Shenzhen Harmony Creation Biological Science And Technology Co Ltd
Original Assignee
Shenzhen Harmony Creation Biological Science And Technology 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 Shenzhen Harmony Creation Biological Science And Technology Co Ltd filed Critical Shenzhen Harmony Creation Biological Science And Technology Co Ltd
Priority to CN201810206568.7A priority Critical patent/CN108309125B/en
Publication of CN108309125A publication Critical patent/CN108309125A/en
Application granted granted Critical
Publication of CN108309125B publication Critical patent/CN108309125B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K7/00Body washing or cleaning implements
    • A47K7/04Mechanical washing or cleaning devices, hand or mechanically, i.e. power operated
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Massaging Devices (AREA)

Abstract

The present invention provides a kind of hand tool, the hand tool includes shell, water storage device, reflux head, pressurization mouth, the water storage device is disposed in the housing, the reflux head is fixed on the outside of the shell, liquid is imported in the water storage device and is stored, the pressurization mouth is connected to the water storage device by first pipe, the outlet of the water storage device is connected to the reflux head by second pipe, the maximum height of the second pipe is less than the maximum height of the first pipe, and the liquid after human skin is discharged the reflux head.When temporarily without using hand tool, external pump can work on and no leakage the present invention, and can adjust the suction of reflux head.

Description

Hand has
Technical field
The present invention relates to a kind of hand tools.
Background technology
This part intends to provides the back of the body for the embodiments of the present invention stated in claims and specific implementation mode Scape or context.Description herein recognizes it is the prior art not because not being included in this part.
With the continuous improvement of people's living standards, more and more people need to use cosmetic apparatus to carry out beauty, Such as Essence beauty instrument etc., these cosmetic apparatus are typically necessary with tool in one's hands.Hand tool is that Essence etc. is had beauty work( The liquid of effect is coated to device on human skin, then recycles Essence extra on skin, and still, existing hand tool exists It temporarily needs to stop the work of each pump when not in use, not so can have from hand and flow out, it is cumbersome, moreover, existing hand tool is not The suction of reflux head can be adjusted well.
Invention content
In consideration of it, it is necessary to provide a kind of hands to have by the present invention, when temporarily without using hand tool, external pump can continue work Make and no leakage, and the suction of reflux head can be adjusted.
The present invention provides a kind of hand tool, and the hand tool includes shell, water storage device, reflux head, pressurization mouth, the storage Water installations are disposed in the housing, and the reflux head is fixed on the outside of the shell, liquid import in the water storage device into Row storage, the pressurization mouth are connected to the water storage device by first pipe, and the outlet of the water storage device passes through the second pipe Road is connected to the reflux head, and the maximum height of the second pipe is less than the maximum height of the first pipe, the reflux Liquid after human skin is discharged head.
Further, the outlet of the water storage device is arranged on the top of the water storage device.
Further, the reflux head includes a cavity, the introducing port and delivery line that are connected to the cavity, described One end of cavity is open surface, and the delivery line is arranged in the cavity, the entrance of the delivery line and the open mask There are certain distance, the outlet of the water storage device to be connected to the introducing port by second pipe, the liquid after human skin Body is discharged through the delivery line.
Further, it is equipped with and the pipeline of delivery line company on the wall surface of the ingress pipe and close to the inlet At least one logical opening.
Further, the opening is that the end face of the ingress pipe is formed along the axial depression of the ingress pipe, institute It states end face and closes on the open surface.
Further, hand tool further includes the pressing plate being connect with the housing into rotation, be connected to the shell and The resetting spring of the pressing plate, the pressing plate are equipped with contact, when external force is applied to the pressing plate, the contact The pressurization mouth is sealed so that the pressurization mouth is isolated from the outside world.
Further, the pressing plate is equipped with rotationally constrained portion, and the pressing plate is limited by the rotationally constrained portion It rotates in a certain range.
Further, the hand tool further includes potentiometer, and the potentiometer is fixed by the shell.
Further, the hand tool includes the potentiometer knob being rotatablely connected with the ontology, the shaft of the potentiometer It is fixed with the potentiometer knob, the main body of the potentiometer is fixed with the shell.
Hand tool provided by the present invention, the hand tool include shell, water storage device, reflux head, pressurization mouth, the water storage dress It is arranged in the shell, the reflux head is fixed on the outside of the shell, and liquid is imported in the water storage device and deposited Storage, the pressurization mouth are connected to the water storage device by first pipe, and the outlet of the water storage device is connected by second pipe The reflux head is passed to, the maximum height of the second pipe is less than the maximum height of the first pipe, and the reflux head will Liquid discharge after human skin, when temporarily without using hand tool, external pump can work on and no leakage, and The suction of reflux head can be adjusted.
Description of the drawings
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description Attached drawing is briefly described, it is clear that, drawings in the following description are some embodiments of the invention, general for this field For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the electrical structure schematic diagram of cosmetic apparatus.
Fig. 2 is the structural schematic diagram of hand tool.
Fig. 3 is the electrical structure schematic diagram of hand tool
Fig. 4 is the cut-away section structural schematic diagram of hand tool.
Fig. 5 is reflux header structure schematic diagram.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, based in the present invention Embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of not making performing creative labour Example, belongs to protection scope of the present invention, it will be understood that attached drawing is only to provide reference and description use, is not used for this hair Bright to limit, the connection shown in attached drawing is intended merely to facilitate clear description, and limits connection type.
It should be noted that when a component is considered as " connection " another component, it can be directly to separately One component may be simultaneously present component placed in the middle.Unless otherwise defined, all technologies used herein and section are academic Language is identical as the normally understood meaning of those skilled in the art of the present invention, herein in the used in the description of invention Term be only for the purpose of describing specific embodiments be not be limit the present invention.
One embodiment of the invention hand tool 100, can be applied in cosmetic apparatus 200, the cosmetic apparatus 100 as shown in Figure 1, Fig. 1 shows the electrical schematic diagram of the cosmetic apparatus 200.The cosmetic apparatus includes an at least cup body 110, hand tool 100, this In invention, the quantity of the cup body 110 can be two, and different cup bodies 110 can fill the Essence of different efficacies, cup respectively The liquid of body 110 can be directed into hand tool 100, and the liquid discharge after hand tool 100 can will be contacted with human skin is recycled.
As shown in Fig. 2, the hand tool 100 includes ontology 10 and reflux head 20, the reflux head 20 can pass through the ontology 10 fix.
As in Figure 2-4, the ontology 10 may include shell 11, pressurization mouth 12, with the shell 11 be rotatablely connected by Pressing plate 13, the resetting spring 14 for being connected to the shell 11 and the pressing plate 13, water storage device 17(It can be referring to Fig. 3).Institute It can be forcing pipe to state pressurization mouth 12, and forcing pipe is from exposed by the shell 11.The water storage device 17 is arranged in the shell In 11.Shaft can be installed on the shell 11, pressing plate 13 can be made to be rotatablely connected with shell 11 by shaft, the pressing plate 13 profile can be roughly the same with the shape of the shell 11, and pressing plate 13 can be covered on the shell 11.
As shown in figure 3, the cup body 110 is connected to the water storage device 17, liquid is discharged into the water storage device 17, The pressurization mouth 12 is connected to the water storage device 17 by first pipe 15, and the outlet of the water storage device 17 passes through the second pipe Road 16 is connected to the reflux head 20, and the maximum height of the second pipe 16 is less than the maximum height of the first pipe 15 (Difference is H), it is described reflux head 20 by after human skin liquid be discharged, it is preferable that the outlet of the water storage device 17 It is arranged on the top of the water storage device 17.
As shown in figure 4, contact 131 can be equipped in the pressing plate 13, when application external force(For example one hand holds hand tool 100)In pressing plate 13,13 compressible resetting spring 14 of pressing plate so that contact 131 is moved to the direction of pressurization mouth 12, To be closed the pressurization mouth 612 so that the pressurization mouth 612 and external atmospheric isolation then can be by multiple when external force is eliminated The effect of position spring 14 resets pressing plate 13, and then opens the pressurization mouth 612 so that the pressurization mouth 612 and external air Connection.
When nursing staff needs away from keyboard(Liquid will not be reduced at this time), the pump housing can not be closed, institute can be passed through The storage of water storage device 17 is stated, without making liquid be flowed out from reflux head 20, is convenient to nursing staff's manipulation.Due to described second The maximum height of pipeline 16 is less than the maximum height of the first pipe 15, and therefore, liquid will not be flowed through from first pipe 15 It is flowed out to pressurization mouth 12.When nursing staff does not press pressing plate 13 and pressurization mouth 12 is not completely cut off with ambient atmosphere, flow back head The power of absorption skin at 20 is slightly smaller, can be coated well, and when needs siphon away grease, blackhead etc. by the head 20 that flows back When foul, certain grip can be applied so that contact 131 closes the pressurization mouth 12, makes when tool 100 is stopped in holding The mouth 12 that must pressurize completely cuts off with ambient atmosphere, and when pumping, the pressure at the head 20 that flows back at work is small, and the power for adsorbing skin is slightly larger, energy It is enough to siphon away the fouls such as grease, blackhead well.
As shown in figure 4, being used to form the forcing pipe of the pressurization mouth 12 can be fixed in shell 11, it can be in shell It is open on body 11 so that the pressurization mouth 12 is exposed, and contact 131 can be contacted with the exposed pressurization mouth 12 and be sealed described Pressurize mouth 12.It can be recessed on shell 11 and form a groove 111, the resetting spring 14 can be housed in the groove 111, Extend a positioning column 132 with locating slot 1321 to 11 direction of shell in pressing plate 13, positioning column 132 can be housed in recessed In slot 111, resetting spring 14 can be housed in locating slot 1321.
As shown in figure 5, the reflux head 20 includes a cavity 21, the introducing port 22 being connected to the cavity 21 and leads One end of outlet pipe 23, the cavity 21 is open surface 211, and the delivery line 23 substantially can be in the bottom surface 212 of the cavity 21 Plumbness and with open surface 211 also substantially in vertical state, the introducing port 22 can be with the storage that is arranged in the ontology 10 Water installations 17 are connected to, and the delivery line 23 can be with the delivery line that is arranged in the ontology 10(The delivery line is connected at recycling) Connection, the introducing port 22 can be the bellmouth being arranged on the bottom surface of the cavity 21 212, and the outlet end of the bellmouth is The diameter of tapered end, outlet end can be between 0.1mm-1mm, preferably 0.1mm.
Liquid in the water storage device 17 leads entrance 22 by importing pump, hence into cavity 21, human skin The open surface 211 is closed, the Essence in cavity 21 is contacted with human skin, and Essence is again by exporting pump from export Pipe 23 is drained into ontology 10, and recycling place is expelled to from ontology 10, and Essence return-flow system is constituted with this.Importing pump and Export pump may be mounted on the cosmetic apparatus 200, of course, it is possible to setting imports pump or export pump in ontology 10, This is not restricted.
The delivery line 23 has pipeline 233, and it is the pipeline that the delivery line 23, which has an entrance 231, entrance 231, 233 port, Essence enter delivery line 23 from the entrance 231 and then are drained into ontology 10,231 distance of the entrance There is the open surface 211 certain distance d, this distance d to be preferably less than the 1/4 of the cavity depth L.Therefore, when by leading Go out and pump by the formation negative pressure of cavity 21 and when sucking human skin in cavity 21, human skin can be avoided as much as and block export The entrance 231 of pipe 23, it is ensured that return-flow system being capable of normal operation.
The pipeline 233 with the delivery line 23 can be equipped on the wall surface 232 of ingress pipe 23 and at the entrance 231 At least one opening 234 of connection, 234 quantity of the opening is preferably 4, uniformly respectively at one week of the wall surface 232 On, if human skin plugs the entrance 231, Essence can also be entered by the opening 234 in conduit 233, It can still ensure that return-flow system being capable of normal operation.Particularly, it is described opening 234 for the ingress pipe 23 end face 235 along What the axial depression of the ingress pipe 23 was formed, wherein the end face 235 is the bottom surface of 23 one end of the ingress pipe, the end Face 235 is connect with the wall surface, and the open surface 211 is closed in the end face 235, is so convenient to the molding of opening 234, and When skin blocks entrance 231, Essence is also entered in pipeline 233 from opening 234 and can also be contacted with human skin.
In order to reduce the angle that the pressing plate 13 can rotate, a rotation limitation can be formed in pressing plate 13 Portion(It is not shown), rotationally constrained portion can be convex block, when resetting spring 14 so that pressing plate 13 rotates, reach certain angle Afterwards, compressing by convex block and 11 surface of shell, limitation pressing plate 13 are rotated further.Alternatively, pressing plate 13 can also be passed through End and the limitation pressing plate 13 that compresses of shell 11 are rotated further.
As shown in Fig. 2, the hand tool 100 can also include potentiometer 30, the potentiometer 30 may be mounted at described The tail end of body 10, it is opposite with the reflux head 20, the potentiometer being rotatablely connected with the ontology 10 can be installed on ontology 10 and revolved Button 40, shaft 31 and the potentiometer knob 40 of potentiometer 30 are fixed, main body 32 and the ontology 10 of the potentiometer 30 It is fixed, by rotating the potentiometer knob 40, the potentiometer 30 is adjusted, the first device being electrically connected with the potentiometer 30 is controlled Part(Such as pump, solenoid valve)It is operated in different gears.
In several embodiments provided by the present invention, it should be appreciated that can also be to come in other way in fact Existing, embodiments described above is only exemplary.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, do not taking off In the case of spirit or essential characteristics from the present invention, the present invention can be realized in other specific forms.Therefore, no matter from Should all will be that embodiment regards exemplary as, and is non-limiting, the scope of the present invention is wanted by right from the point of view of which point Ask rather than above description limit, it is intended that by all changes that come within the meaning and range of equivalency of the claims It includes in the present invention.
Any reference signs in the claims should not be construed as limiting the involved claims.Furthermore, it is to be understood that " packet Including " word is not excluded for other units or step, and odd number is not excluded for plural number, and the first, second equal words are used to indicate names, and simultaneously Any specific sequence is not indicated that.
It is last it should be understood that above example be only used for it is non-display to illustrate technical scheme of the present invention, although With reference to preferred embodiment, the present invention is described in detail, it will be understood by those of ordinary skill in the art that, it can be to the present invention Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range.

Claims (9)

1. a kind of hand tool, which is characterized in that the hand tool includes shell, water storage device, reflux head, pressurization mouth, the water storage dress It is arranged in the shell, the reflux head is fixed on the outside of the shell, and liquid is imported in the water storage device and deposited Storage, the pressurization mouth are connected to the water storage device by first pipe, and the outlet of the water storage device is connected by second pipe The reflux head is passed to, the maximum height of the second pipe is less than the maximum height of the first pipe, and the reflux head will Liquid discharge after human skin.
2. cosmetic apparatus according to claim 1, which is characterized in that the outlet of the water storage device is arranged in the water storage The top of device.
3. cosmetic apparatus according to claim 1, which is characterized in that the reflux head includes a cavity and the cavity One end of the introducing port and delivery line of connection, the cavity is open surface, and the delivery line is arranged in the cavity, institute The entrance and the open surface for stating delivery line have certain distance, and the outlet of the water storage device is connected to institute by second pipe Introducing port is stated, the liquid after human skin is discharged through the delivery line.
4. cosmetic apparatus according to claim 3, which is characterized in that enter on the wall surface of the ingress pipe and described in At least one opening being connected to the pipeline of the delivery line is equipped at mouthful.
5. cosmetic apparatus according to claim 3, which is characterized in that it is described opening for the ingress pipe end face along institute The axial depression formation of ingress pipe is stated, the open surface is closed in the end face.
6. according to claim 1-5 any one of them cosmetic apparatus, which is characterized in that the hand, which has, further includes and the shell The pressing plate of rotation connection is connected to the shell and the resetting spring of the pressing plate, and the pressing plate is equipped with contact Part, when external force is applied to the pressing plate, the contact seals the pressurization mouth so that the pressurization mouth is isolated from the outside world.
7. hand tool according to claim 6, which is characterized in that the pressing plate is equipped with rotationally constrained portion, by described Rotationally constrained portion limits the pressing plate and rotates in a certain range.
8. being had according to claim 1-5 any one of them hands, which is characterized in that the hand tool further includes potentiometer, the electricity Position device is fixed by the shell.
9. hand tool according to claim 8, which is characterized in that the hand tool includes the current potential being rotatablely connected with the ontology Device knob, the shaft of the potentiometer are fixed with the potentiometer knob, and the main body of the potentiometer is fixed with the shell.
CN201810206568.7A 2018-03-13 2018-03-13 Hand tool Active CN108309125B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810206568.7A CN108309125B (en) 2018-03-13 2018-03-13 Hand tool

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Application Number Priority Date Filing Date Title
CN201810206568.7A CN108309125B (en) 2018-03-13 2018-03-13 Hand tool

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CN108309125A true CN108309125A (en) 2018-07-24
CN108309125B CN108309125B (en) 2024-04-12

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Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2238649Y (en) * 1995-12-04 1996-10-30 李德华 Air pressure type health-care irrigator for women
CN2348605Y (en) * 1998-09-30 1999-11-17 李卫东 Knapsack type electric pneumatic sprayer
GB0506926D0 (en) * 2004-04-27 2005-05-11 Hygiene Technik Inc One-way valve and vacuum relief device
TWM268034U (en) * 2004-12-14 2005-06-21 Jr-Ling Chen Hydropathic machine
CN201267610Y (en) * 2008-08-12 2009-07-08 朱江峰 Irrigator for nasal cavity
CN201861940U (en) * 2010-11-16 2011-06-15 吕永横 Skin-whitening and speckle-removing device
CN102488537A (en) * 2011-12-15 2012-06-13 广州市美锐美容健康设备实业有限公司 Hydropower grinding device for skin beauty
CN202908997U (en) * 2012-08-27 2013-05-01 姜冰 Multi-functional cleaner
CN203017616U (en) * 2013-01-16 2013-06-26 青岛安福尔车业有限公司 Compressor power fire-extinguishing device
CN103222923A (en) * 2013-04-22 2013-07-31 珠海市新依科医疗科技有限公司 Gynecological cleaning and caring instrument provided with liquid backflow preventing device
CN104127150A (en) * 2014-06-17 2014-11-05 孙臣 Liquid electrode type electric-pulse washing device based on conduction of water-borne liquid loops
CN204169770U (en) * 2014-09-05 2015-02-25 中山市众智电器有限公司 Liquid pumping means and fluid reservoir assembly thereof
KR20150026692A (en) * 2013-09-03 2015-03-11 (주) 텔트론 Skin care apparatus
CN204561954U (en) * 2015-04-07 2015-08-19 朱德明 A kind of environmental protection clean hand equipment
CN204861747U (en) * 2015-08-23 2015-12-16 深圳前海零距物联网科技有限公司 Automatic drink bicycle in motion kettle and electrified source
CN205252002U (en) * 2015-12-24 2016-05-25 广州远想生物科技有限公司 A device for skin nursing
CN106608661A (en) * 2015-10-22 2017-05-03 蒋凤英 Portable seawater desalination plant
CN106995927A (en) * 2016-01-25 2017-08-01 吾土产业株式会社 Skin rejuvenation equipment
CN206365595U (en) * 2016-12-29 2017-08-01 深圳市纬安共创生物科技有限公司 A kind of Essence backflow hand tool
CN208491922U (en) * 2018-03-13 2019-02-15 深圳市纬安共创生物科技有限公司 Hand tool

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2238649Y (en) * 1995-12-04 1996-10-30 李德华 Air pressure type health-care irrigator for women
CN2348605Y (en) * 1998-09-30 1999-11-17 李卫东 Knapsack type electric pneumatic sprayer
GB0506926D0 (en) * 2004-04-27 2005-05-11 Hygiene Technik Inc One-way valve and vacuum relief device
TWM268034U (en) * 2004-12-14 2005-06-21 Jr-Ling Chen Hydropathic machine
CN201267610Y (en) * 2008-08-12 2009-07-08 朱江峰 Irrigator for nasal cavity
CN201861940U (en) * 2010-11-16 2011-06-15 吕永横 Skin-whitening and speckle-removing device
CN102488537A (en) * 2011-12-15 2012-06-13 广州市美锐美容健康设备实业有限公司 Hydropower grinding device for skin beauty
CN202908997U (en) * 2012-08-27 2013-05-01 姜冰 Multi-functional cleaner
CN203017616U (en) * 2013-01-16 2013-06-26 青岛安福尔车业有限公司 Compressor power fire-extinguishing device
CN103222923A (en) * 2013-04-22 2013-07-31 珠海市新依科医疗科技有限公司 Gynecological cleaning and caring instrument provided with liquid backflow preventing device
KR20150026692A (en) * 2013-09-03 2015-03-11 (주) 텔트론 Skin care apparatus
CN104127150A (en) * 2014-06-17 2014-11-05 孙臣 Liquid electrode type electric-pulse washing device based on conduction of water-borne liquid loops
CN204169770U (en) * 2014-09-05 2015-02-25 中山市众智电器有限公司 Liquid pumping means and fluid reservoir assembly thereof
CN204561954U (en) * 2015-04-07 2015-08-19 朱德明 A kind of environmental protection clean hand equipment
CN204861747U (en) * 2015-08-23 2015-12-16 深圳前海零距物联网科技有限公司 Automatic drink bicycle in motion kettle and electrified source
CN106608661A (en) * 2015-10-22 2017-05-03 蒋凤英 Portable seawater desalination plant
CN205252002U (en) * 2015-12-24 2016-05-25 广州远想生物科技有限公司 A device for skin nursing
CN106995927A (en) * 2016-01-25 2017-08-01 吾土产业株式会社 Skin rejuvenation equipment
CN206365595U (en) * 2016-12-29 2017-08-01 深圳市纬安共创生物科技有限公司 A kind of Essence backflow hand tool
CN208491922U (en) * 2018-03-13 2019-02-15 深圳市纬安共创生物科技有限公司 Hand tool

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