CN113768644A - Spray head structure of tooth flushing device and design method thereof - Google Patents
Spray head structure of tooth flushing device and design method thereof Download PDFInfo
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- CN113768644A CN113768644A CN202111093187.0A CN202111093187A CN113768644A CN 113768644 A CN113768644 A CN 113768644A CN 202111093187 A CN202111093187 A CN 202111093187A CN 113768644 A CN113768644 A CN 113768644A
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 17
- 239000007921 spray Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 210000000214 mouth Anatomy 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000035807 sensation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 241000463219 Epitheca Species 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 235000010585 Ammi visnaga Nutrition 0.000 description 1
- 244000153158 Ammi visnaga Species 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C15/00—Devices for cleaning between the teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
- A61C17/032—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication using pressurised tap-water, e.g. rinsing devices specially adapted for being connected to the main water supply
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nozzles (AREA)
Abstract
The invention provides a spray head structure of a tooth flushing device and a design method thereof, which is characterized in that: the number of the water outlet holes is more than 3, and the total area of the water outlet holes is set by being smaller than a threshold value. The total area of the water outlet holes is used as the limit for arranging the water outlet holes, so that the total water outlet amount in unit time is controlled while the water pressure for flushing the teeth is ensured, and the cleanness and the usability are both considered (the water is not filled in the oral cavity quickly). In further design, through the total water yield of balanced each gear, the water column is more, and the aperture is less, and the water column is thinner more, has disperseed out water in other words, lets each strike softer, and the user can select the gear according to the body sensation, but total unit water yield then keeps roughly constant, can promote to use and experience. In addition, the complete design of the specific spray head structure of the tooth flushing device is further provided, the structure is simplified, the manufacture is convenient, and the higher performance improvement can be realized by using lower cost.
Description
Technical Field
The invention relates to the technical field of oral cleaning devices, in particular to a spray head structure of a tooth flushing device and a design method thereof.
Background
The traditional toothbrush is simple and convenient, and has good cleaning effect on the reached tooth surface. The dental floss or the toothpick has good effect on cleaning foreign matters tightly clamped between teeth and partial gingival sulcus. However, they all have the problems of consumable materials, inability to be used in common or repeated use, and in some cases may damage the mouth or gums.
The tooth flushing device has unique cleaning and health care functions through water flow and simple use, is always used as an auxiliary supplement tool of the toothbrush, is designed into a single water column with limited water volume conventionally, and is mainly used for flushing parts which are difficult to clean of the toothbrush, such as slits between teeth, gingival sulcus and the like.
However, the single water column tooth irrigator has obvious defects that just like directly spraying with a water tap during bathing, the body cannot be quickly and effectively washed clean, so the single water column cannot quickly and accurately wash gingival sulcus and tooth gaps. Meanwhile, the single water column often causes gum damage due to large water volume and strong impulsive force.
At present, also there is the tooth ware shower nozzle of dashing of 3 water columns in the market, but this shower nozzle is on the water tap is received directly, and its water yield is great, when can causing to dash the tooth, lets the oral cavity quick fill water, and it is very inconvenient to use, simultaneously because of its pressure receives water pressure's influence from beginning, and pressure is little, does not play the effect of washing, and if pressure is big, injures the gum very easily. If the porous tooth flusher nozzle is arranged on a traditional electric tooth flusher, the water outlet impulsive force is reduced sharply due to the fact that the area of a water outlet is multiplied, and the effect of effective cleaning cannot be achieved.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a brand-new spray head structure of a tooth flushing device and a design method thereof, aiming at overcoming the defects of the spray head of the tooth flushing device, enabling the spray head to accurately flush gingival sulcus and slits between teeth, and realizing 'sweeping' of a large area of tooth surface by multiple water columns without filling the oral cavity with water quickly.
The invention specifically adopts the following technical scheme:
the utility model provides a towards tooth ware shower nozzle structure which characterized in that: the number of the water outlet holes is more than 3, and the total area of the water outlet holes is set by being smaller than a threshold value.
Further, the total area of the water outlet holes is smaller than 0.5mm2。
Furthermore, the water outlet holes are provided with a plurality of groups, the water outlet holes are switched through a switch, the size of each group of water outlet holes is smaller than a first threshold value by the total area of the water outlet holes, and the difference value of the total area of the water outlet holes among the different groups of water outlet holes is limited by being smaller than a second threshold value.
Furthermore, a conversion piece is arranged between the water inlet channel and the water outlet hole; a plurality of micropores are formed in the conversion piece and are used as water flow channels; the conversion piece enables the micro holes to be aligned to different groups of water outlet holes through gear type translation.
Furthermore, the water outlet holes of the same group are distributed in parallel in multiple rows, and the water outlet holes of adjacent gears are distributed in a staggered manner; the micropores on the conversion piece are distributed in parallel in multiple rows; the moving stroke of each gear of the conversion part is the same, and the distance between the axes of the adjacent micro holes in the stroke direction is the same as that between the adjacent holes of the same group of water outlets in the stroke direction.
Further, the conversion member is disposed between the upper case and the lower case; the water outlet is formed in the spray head part of the upper shell; the water inlet passage is provided between the conversion member and the lower case.
Furthermore, a waterproof pad is relatively and fixedly arranged on the conversion piece; a plurality of micropores are arranged at corresponding positions on the conversion piece and the waterproof pad and are used as water flow channels.
Further, an elastic pressing mechanism is arranged between the conversion piece and the lower shell.
Furthermore, gear shifting and positioning structures matched with each other are arranged between the conversion piece and the upper shell or the lower shell.
And the design method of the spray head structure of the tooth flushing device is characterized in that: the size of each group of water outlet holes is limited by the fact that the total area of the water outlet holes is smaller than a first threshold value, and the difference value of the total area of the water outlet holes among different groups of water outlet holes is smaller than a second threshold value; the water outlet holes of the same group are distributed in parallel in multiple rows, and the water outlet holes of adjacent gears are distributed in a staggered manner; the micropores on the conversion piece are distributed in parallel in multiple rows; the moving stroke of each gear of the conversion part is the same, and the distance between the axes of the adjacent micro holes in the stroke direction is the same as the distance between the adjacent holes of the same group of water outlets in the stroke direction; setting the number of gear digits as m, wherein m is a positive integer; the minimum distance of the projection of the adjacent gear holes in the moving direction of the conversion piece is a; the distance between two adjacent gears is na, and n is an integer; n and m are coprime.
The invention and the preferred proposal thereof adopt the total area of the water outlet at the same time as the limit of the water outlet hole, ensure the water pressure of the tooth flushing, control the total water outlet amount in unit time, and take the cleanliness and the usability into consideration (not to cause the water to fill the oral cavity quickly). Through the total water yield of balanced each gear, the water column is more, and the aperture is less, and the water column is thinner more, has disperseed out water in other words, lets each strike gentler, and the user can select the gear according to the body sensation, but total unit water yield then keeps roughly constant, can promote to use and experience. In addition, the complete design of the specific spray head structure of the tooth flushing device is further provided, the structure is simplified, the manufacture is convenient, and the higher performance improvement can be realized by using lower cost.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is an exploded view of the structure of example 1 of the present invention;
FIG. 2 is a schematic diagram of gear shifting according to embodiment 1 of the present invention;
FIG. 3 is a shift schedule of the present invention;
FIG. 4 is a schematic sectional view showing the entire structure of embodiment 1 of the present invention;
FIG. 5 is a schematic view of the working state of embodiment 1 of the present invention;
FIG. 6 is a schematic sectional view showing the entire structure of embodiment 2 of the present invention;
FIG. 7 is an exploded view of the structure of example 2 of the present invention;
FIG. 8 is a simplified schematic diagram of the operating state of the solution according to the embodiment of the present invention.
In the figure: 1-upper shell; 2-a transition piece; 3-a lower shell; 4-water outlet; 5-gear shifting positioning structure; 6-gear shifting knob; 7-elastic compression structure; 8-waterproof pad.
Detailed Description
In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:
firstly, the overall design concept of the novel tooth flushing device spray head structure provided by the invention is introduced.
Be different from prior art, this scheme adopts the design of polywater column, nevertheless considers to limit its apopore total area, when the total area of apopore is less than the first threshold value that obtains according to the experience, can guarantee the precision, the pressure that wash to because the restriction of total water yield of unit interval, make polywater column design also can not lead to water to fill up the oral cavity fast, bring the inconvenience in the use.
According to the test, the better effect can be obtained when the total area of the spray holes is less than 0.5 square millimeter. The diameter of a single water outlet is generally less than 0.3 mm. The small hole diameter of the size is considered to be small, and the plastic part cannot be directly molded, so the small hole can be formed by laser after the plastic is molded.
In order to adapt to the body senses of different users and also consider the adjustability of the washing precision, the optimal scheme adopting the design is that multiple water columns can be switched for use, the total water outlet quantity is kept stable by limiting the areas of the water outlet holes in multiple states to be approximately equal (the area difference value is smaller than a second threshold), the more the holes are, the softer the gear experience is, and the less the holes are, the higher the cleaning precision is.
Based on the design thought, 2 design examples are provided in combination below, and the concrete structure implementation of the design is introduced:
as shown in fig. 1 to 5, in the first embodiment, the method includes: an upper shell 1, a lower shell 3, a conversion piece 2 and the like. Wherein the conversion member 2 is disposed between the upper case 1 and the lower case 3; the water outlet 4 is formed in the spray head part of the upper shell 1 and is as close to the top of the spray head as possible; the water inlet channel of the tooth flushing device is arranged between the conversion piece 2 and the lower shell 3.
Further, the conversion part 2 below is provided with elasticity compact structure 7, lets conversion part 2 and 1 in close contact with of epitheca, combines inside water pressure, can fully guarantee that conversion part 2 withstands the apopore that does not aim at, and water can only spout from the apopore that aims at, plays the effect of leak protection water.
As a core point of the design, in order to ensure that the sum of the areas of the water outlets in multiple states is approximately equal, in this embodiment, the water outlets 4 in the same state of the tooth flusher nozzle are placed in parallel and in multiple rows, the distances between each row of holes on the upper shell 1 are equal, the water outlets 4 in different states are distributed in a staggered manner, the strokes of the switching sliding conversion pieces in different states are the same, the holes on the conversion pieces 2 are distributed in parallel, and the distance between the axes of the adjacent through holes in the stroke direction is the same as the distance between the adjacent holes in a single state in the stroke direction of the upper shell.
Specifically, as shown in fig. 4, the upper casing 1 and the shifter 2 are designed with mutually cooperating shift position switching positioning structures 5, which ensure the same stroke of each gear by means of a wavy equidistant structure (alternatively, the shift position switching positioning structures 5 may be arranged between the lower casing and the shifter instead). The switching of multiple states makes the through-hole on the converting part 2 aim at with the micropore that the epitheca corresponds through sliding gear switching toggle 6, and the apopore blowout of water column from aiming at is controlled the size of water column of spouting through the aperture and the numerical control of epitheca apopore.
As shown in fig. 2, an indication of the state of the three steps of travel is provided, the first step having only one outlet hole, which is relatively large, the second step having 17 outlet holes, and the third step having 10 outlet holes. It is crisscross the setting to see out the apopore group that different gears correspond, can practice thrift the space of casing shower nozzle on the one hand, and on the other hand is also convenient for converter 2 to shelter from and seals apopore 4 that does not launch.
The problems of multiplexing of the water outlets and how to make the numbers of the water outlets corresponding to different gears different are further considered.
As shown in fig. 3, how to ensure that the number of holes corresponding to each gear is different is further considered:
setting the number of gear digits as m, wherein m is a positive integer;
the positions of the gears are k, k =0,1,2.. once, m-1;
the minimum distance of the projection of the adjacent gear holes in the moving direction of the conversion piece is a;
the minimum distance between the holes in the same gear moving direction is ma;
the distance between two adjacent gears is na; in order to enable the holes on the conversion piece to be shared, n is an integer;
and after the hole of the conversion piece slides for each gear, the hole on the upper shell needs to be accurately aligned, and if n is greater than m, i = [ n/m ], the position of the hole aligned for the gear is n-im, obviously n-im < m, and therefore when n is less than m, the hole on each gear sliding piece can be aligned with the corresponding micro hole.
For the problem of gear repetition, assuming that n and m should be relatively prime, if not, it is possible that the gear will be repeated; this problem translates into:
when the slide piece slides to the kth gear, the position of the conversion piece is nak, and when the slide piece slides to any gear, the holes on the slide piece are respectively aligned with the micro holes of all gears; that is, it means that nk- [ nak/ma ] contains all 0-m-1;
let q = nk- [ nak/ma ], this equation can be expressed as nk = mp + q, it is clear that q < m,
the following counter-proof proves that q contains all the components 0, 1.... multidot.m-1,
with different k and p, there are two equal q,
i.e., nk1=mp1+q，nk2=mp2+ q, so n (k)1-k2)=m(p1-p2) Since n and m are coprime, (k)1-k2) Is a multiple of m, but k =0,1,2<m cannot be a multiple of m, so the contradiction indicates that the holes on the conversion piece can be correspondingly aligned with the micropores of all the gears.
And when n and m are not relatively prime, equation n (k)1-k2)=m(p1-p2) It may be true that there are different k and p, there being two equal q, i.e. the holes in the shift element are aligned with the same aperture in different gear positions.
The design is an optimal scheme, when n is not an integer, partial holes on the conversion piece 2 cannot be shared, the number of the holes must be increased, and after the number of the holes is increased, the distance between the holes is reduced, so that the conversion piece 2 can not completely cover the partial holes, and poor water resistance is caused; meanwhile, the contact area between the conversion piece 2 and water is reduced after the number of the holes is increased, the water pressure on the conversion piece 2 is reduced, and poor water prevention can be caused.
As shown in figure 5, according to the design, the embodiment is applied to the tooth flushing device, and can bring the effect of a water flow toothbrush.
As shown in fig. 6-7, in the second embodiment, a waterproof pad 8 is mainly added, which is disposed above the converter 2, is fixed to the converter 2, and has a plurality of micro holes at the same positions as water flow passages. The function of this member is to further ensure water-tightness.
As shown in fig. 8, the simplified scheme of the embodiment of the present invention is shown in a working state, and although the simplified scheme does not have a "gear shift" function, the simplified scheme meets the requirements that the total area of the nozzle holes is smaller than 0.5 square millimeter and the number of the water outlet holes is more than 3, that is, the simplified scheme can be substantially different from the existing single-nozzle or multi-nozzle tooth-rinsing device nozzle structure in function and effect, and greatly improves the experience in the case of directly connecting the electric tooth-rinsing device.
The present invention is not limited to the above preferred embodiments, and all other various types of nozzle structure and design methods of the tooth irrigator can be obtained by one of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a towards tooth ware shower nozzle structure which characterized in that: the number of the water outlet holes is more than 3, and the total area of the water outlet holes is set by being smaller than a threshold value.
2. The structure of the nozzle head of the tooth irrigator according to claim 1, wherein: the total area of the water outlet holes is less than 0.5mm2。
3. The structure of the nozzle head of the tooth irrigator according to claim 1, wherein: the water outlet holes are provided with a plurality of groups and are switched through a switch, the size of each group of water outlet holes is limited by the fact that the total area of the water outlet holes is smaller than a first threshold value, and the total area difference of the water outlet holes among different groups of water outlet holes is limited by the fact that the total area difference of the water outlet holes is smaller than a second threshold value.
4. The structure of the nozzle head of the tooth irrigator according to claim 3, wherein: a conversion piece is arranged between the water inlet channel and the water outlet hole; a plurality of micropores are formed in the conversion piece and are used as water flow channels; the conversion piece enables the micro holes to be aligned to different groups of water outlet holes through gear type translation.
5. The structure of the nozzle head of the tooth irrigator according to claim 4, wherein: the water outlet holes of the same group are distributed in parallel in multiple rows, and the water outlet holes of adjacent gears are distributed in a staggered manner; the micropores on the conversion piece are distributed in parallel in multiple rows; the moving stroke of each gear of the conversion part is the same, and the distance between the axes of the adjacent micro holes in the stroke direction is the same as that between the adjacent holes of the same group of water outlets in the stroke direction.
6. The structure of the nozzle head of the tooth irrigator according to claim 4 or 5, wherein: the conversion member is disposed between the upper case and the lower case; the water outlet is formed in the spray head part of the upper shell; the water inlet passage is provided between the conversion member and the lower case.
7. The structure of the nozzle of claim 6, wherein: a waterproof pad is relatively and fixedly arranged on the conversion piece; a plurality of micropores are arranged at corresponding positions on the conversion piece and the waterproof pad and are used as water flow channels.
8. The structure of the nozzle of claim 6, wherein: an elastic pressing mechanism is arranged between the conversion piece and the lower shell.
9. The structure of the nozzle of claim 6, wherein: and gear switching and positioning structures matched with each other are arranged between the conversion piece and the upper shell or the lower shell.
10. A design method of a nozzle structure of a tooth flushing device is characterized in that: the size of each group of water outlet holes is limited by the fact that the total area of the water outlet holes is smaller than a first threshold value, and the difference value of the total area of the water outlet holes among different groups of water outlet holes is smaller than a second threshold value; the water outlet holes of the same group are distributed in parallel in multiple rows, and the water outlet holes of adjacent gears are distributed in a staggered manner; the micropores on the conversion piece are distributed in parallel in multiple rows; the moving stroke of each gear of the conversion part is the same, and the distance between the axes of the adjacent micro holes in the stroke direction is the same as the distance between the adjacent holes of the same group of water outlets in the stroke direction; setting the number of gear digits as m, wherein m is a positive integer; the minimum distance of the projection of the adjacent gear holes in the moving direction of the conversion piece is a; the distance between two adjacent gears is na, and n is an integer; n and m are coprime.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093187.0A CN113768644B (en) | 2021-09-17 | 2021-09-17 | Tooth-flushing device nozzle structure and design method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093187.0A CN113768644B (en) | 2021-09-17 | 2021-09-17 | Tooth-flushing device nozzle structure and design method thereof |
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| CN113768644A true CN113768644A (en) | 2021-12-10 |
| CN113768644B CN113768644B (en) | 2024-02-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515205A (en) * | 2022-02-17 | 2022-05-20 | 福州金典工业产品设计有限公司 | Tooth flushing device structure and design method of water outlet hole on tooth flushing device structure |
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| JP2004276000A (en) * | 2003-03-12 | 2004-10-07 | Takayasu Okubo | Water spray plate |
| CN203208150U (en) * | 2013-03-07 | 2013-09-25 | 成都佳美嘉科技有限公司 | Warm water control water pick |
| JP2015058375A (en) * | 2013-09-18 | 2015-03-30 | 宏彦 佐藤 | Shower head |
| CN106562829A (en) * | 2015-10-12 | 2017-04-19 | 治齿灵有限公司 | Oral cavity cleaning device |
| EP3378538A1 (en) * | 2017-03-21 | 2018-09-26 | Hagab Industri AB | A pressure regulating unit for regulating pressure resulted from a fire in a room |
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2021
- 2021-09-17 CN CN202111093187.0A patent/CN113768644B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112143A (en) * | 1994-10-18 | 1996-05-07 | Lion Corp | Oral cavity cleaning brush |
| JP2004276000A (en) * | 2003-03-12 | 2004-10-07 | Takayasu Okubo | Water spray plate |
| CN203208150U (en) * | 2013-03-07 | 2013-09-25 | 成都佳美嘉科技有限公司 | Warm water control water pick |
| JP2015058375A (en) * | 2013-09-18 | 2015-03-30 | 宏彦 佐藤 | Shower head |
| CN106562829A (en) * | 2015-10-12 | 2017-04-19 | 治齿灵有限公司 | Oral cavity cleaning device |
| EP3378538A1 (en) * | 2017-03-21 | 2018-09-26 | Hagab Industri AB | A pressure regulating unit for regulating pressure resulted from a fire in a room |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515205A (en) * | 2022-02-17 | 2022-05-20 | 福州金典工业产品设计有限公司 | Tooth flushing device structure and design method of water outlet hole on tooth flushing device structure |
| CN114515205B (en) * | 2022-02-17 | 2023-06-30 | 福州金典工业产品设计有限公司 | Tooth-flushing device structure and design method of upper water outlet thereof |
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| CN113768644B (en) | 2024-02-20 |
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Effective date of registration: 20240124 Address after: Room 701, Building A1, Wanyang Zhongchuang City, No. 99, Tingjiang Road, Tingjiang Town, Mawei District, Fuzhou City, Fujian Province (Yaxi Headquarters) Applicant after: Fuzhou Yisheng oral teeth Technology Co.,Ltd. Country or region after: China Address before: 350012 2nd floor, Fuzhou Science and Technology Information Center building, No. 504, Fuma Road, Jin'an District, Fuzhou City, Fujian Province Applicant before: FUZHOU ONER INDUSTRIAL PRODUCTS DESIGN CO.,LTD. Country or region before: China |
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