CN106322008A - Pipe fitting - Google Patents
Pipe fitting Download PDFInfo
- Publication number
- CN106322008A CN106322008A CN201610845751.2A CN201610845751A CN106322008A CN 106322008 A CN106322008 A CN 106322008A CN 201610845751 A CN201610845751 A CN 201610845751A CN 106322008 A CN106322008 A CN 106322008A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- collar
- ramp structure
- ring
- internal diameter
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 241000589248 Legionella Species 0.000 abstract description 4
- 208000007764 Legionnaires' Disease Diseases 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009395 breeding Methods 0.000 abstract 1
- 230000001488 breeding effect Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007586 pull-out test Methods 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- 208000019300 CLIPPERS Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention relates to a flexible pipe fitting. The pipe fitting comprises a pipe fitting body with at least one end provided with an outer thread and further comprises a threaded cap matched with the outer thread. A bevel structure is arranged at the front end of the outer thread, and annular tooth profiles are arranged on the bevel structure. The pipe fitting further comprises a clamping ring, and an inner bevel structure is arranged on an annular boss of a clamping ring head and provided with annular grooves. The annular grooves and the annular tooth profiles are matched to fasten and seal the expanded pipe fitting. Inner holes in the positions of the annular profiles are not smaller than an inner hole of the pipe fitting. A pushing gasket and an elastic dish gasket are arranged between the threaded cap and the annular boss of the clamping ring. According to the pipe fitting of the structure, the full-drift-diameter connection is achieved, the bevel structure and the pipe fitting are matched closely and smoothly, and flow resistance is reduced; meanwhile, the breeding space of legionella can be reduced, pipeline connection is safe and reliable, construction is convenient, and market popularization value is achieved.
Description
Technical field
The invention relates to building pipe field, is specifically related to a kind of flexible pipe pipe fitting.
Background technology
Along with the development of building pipe technology, flexible pipe is convenient with its production and transport, construction flexibly, application extensively,
The advantages such as installation cost is low, are increasingly becoming market mainstream tubing.At present the flexible pipe of main flow have PAP, PE-X pipe,
PE-RT pipe, PB pipe, PE pipe etc..The connected mode of such tubing is numerous, has pincers-pressed type to connect, and representative prior art such as authorizes public affairs
Accuse number " a kind of plastic-aluminum combined effective clipper type plastic pipe fitting " that be CN 2510708Y；Hot-melt adhesive paste, such as notification number CN
" heat molten type pipe connecting piece and the connected structure of PPR pipe " of 202203579U；Sliding compact form connects, such as " the plastic tube of CN 2620158Y
Attachment structure ".The fitting structure of prior art, is connecting at tubing, because of reasons in structure flow area reducing, pipeline flow amount
Influenced to different extents, sliding tight type pipe fitting flow area minimizing more than 8%, hot melten type pipe fitting minimizing more than 10%, especially
Clamper tube part, flow area reduces more than 20%.
Summary of the invention
The defect that the invention exists for existing flexible pipe pipe fitting, it is provided that the pipe fitting of a kind of full-bore, solves existing
There is the problem that pipe fitting connects reducing.This structure can optimize pipeline hydraulic flow resistance, and practicality is high, has market popularization value.
For achieving the above object, the invention is by the following technical solutions:
A kind of pipe fitting, including an at least externally threaded main pipe body in one end, also includes a thread cap supporting with external screw thread,
External screw thread front end is provided with a ramp structure, is provided with more than two the ring-type profile of tooth incrementally increased on ramp structure；Also include one
Collar, collar head has an annular boss, and annular boss is provided with interior ramp structure, is provided with more than two progressively at interior ramp structure
The annular groove reduced；Annular groove coordinates the tubing after fit sealing expander with ring-type profile of tooth；The endoporus of ring tooth shaped position
Endoporus not less than tubing；Propelling packing ring and resilient dish pad it is provided with between thread cap and the annular boss of collar.
The technical scheme that the invention can also use:
Above-mentioned collar afterbody internal diameter is more than tube outer diameter；Collar middle part internal diameter is less than tube outer diameter, at collar pars intermedia
It is additionally provided with barb recesses on the inwall of position.
Inner chamber internal diameter in the middle part of above-mentioned thread cap is more than minor diameter of internal thread；The female thread of thread cap is provided with two to be run through
The groove of female thread, two groove symmetries；The external diameter advancing packing ring is less than inner chamber internal diameter and two groove ultimate ranges, and is more than
Minor diameter of internal thread；Collar tail portion external diameter is more than the endoporus of dish pad.
The ramp structure of above-mentioned main pipe body is provided with a sealing ring.
The ramp structure head of above-mentioned main pipe body is provided with a stainless steel protection ring.
The ramp structure of above-mentioned main pipe body becomes 25 ° to 40 ° with angle of inclination, axle center.
A kind of pipe fitting of the invention, by the fit structure of the ring-type profile of tooth of main pipe body with the annular groove on collar
Sealing Deng by the flexible pipe occlusion after enlarging, it is achieved the connection of full-bore, ramp structure coordinates the most smooth with tubing, reduces
Flow resistance, and can reduce legionella grow space；Dish pad energy sustained release fastening elastic force, pipeline attachment security is reliable, real
Higher by property, it is convenient to implement.
Accompanying drawing explanation
Fig. 1, the present embodiment one be sectional structure schematic diagram in application；
Fig. 2, the stereo decomposing cross-sectional schematic of the present embodiment one；
Fig. 3, the thread cap schematic perspective view of the present embodiment one；
Fig. 4, the members cross-sectional schematic of the present embodiment one；
Fig. 5, the main pipe body partial cutaway view schematic of the present embodiment two；
Fig. 6, this pipe fitting tool expander schematic diagram.
Detailed description of the invention
With reference to the accompanying drawings the pipe fitting embodiment of the invention is described further.
As shown in Figure 1, 2, the pipe fitting of this embodiment one, main pipe body 1 is a female adapter, and main pipe body 1 is provided with
One external screw thread 10, also includes a thread cap 2 supporting with external screw thread 10.A ramp structure 11 it is provided with in the front end of external screw thread 10,
Ramp structure 11 is provided with four ring-type profiles of tooth 12 incrementally increased；Also include that a collar 3, collar 3 head have a convex annular
Platform 30, annular boss 30 is provided with interior ramp structure 31, is provided with four annular grooves progressively reduced 32 on interior ramp structure 31；
Annular groove 32 coordinates the tubing 9 after fit sealing expander with ring-type profile of tooth 12；The endoporus 13 of annular profile of tooth 12 position is not less than
Inner hole of pipe 90；Propelling packing ring 4 and resilient dish pad 5 it is provided with between the annular boss 30 of thread cap 2 and collar 3.
Main pipe body 1 can be that elbow, threeway etc., at least one end are provided with external screw thread 10.Ring-type profile of tooth 12 and annular groove
32 can do quantity according to pipe fitting specification adjusts, more than two, to guarantee to seal and anti-pull-out property.
For realizing the full-bore flow that pipe fitting connects, the endoporus 13 of this main pipe body 1 ramp structure 11 is not less than in tubing
Hole 90, and ramp structure 11 fits the most smooth with inner hole of pipe 90, reduces flow resistance, and can reduce legionella grow space,
Different from the undergauge structure of prior art.
Collar 3 tail portion 35 internal diameter is more than tubing 9 external diameter；Collar 3 middle part 33 internal diameter is less than tubing 9 external diameter,
A barb recesses 34 it is additionally provided with on the inwall of collar middle part 33；Barb recesses 34 can arrange a plurality of, increases anti-pulling
Energy.Connecting different from the pipe fitting of prior art, collar 3 middle part 33 is less than the external diameter of tubing 9 so that tubing 9 can not be manual
Inserting in collar 3, need to use the specific purpose tool 8 such as accompanying drawing 6, specific purpose tool 8 head 80 clamps the external diameter of tubing 9, by tubing 9
Clamp-on collar 3, and realized the expander of the mouth of pipe by the instrument expander head 81 of band tapering.Tubing 9 external diameter is more than collar 3 middle part
The endoporus of 33, just makes barb recesses 34 can snap in tubing 9, plays the effect strengthening drawing.In annular groove 32, ring-type profile of tooth
12, the tubing 9 after expander can realize in the case of drawing requires, whole hole size of collar 3 can also be more than outside tubing 9
Footpath.
The tubing 9 of the invention belongs to flexible pipe, as PE-X, PE-RT, aluminium-plastic pipe, PB etc. have suppleness and can
The tubing of enlarging, relative copper tube, PPR pipe, PVC etc. have the tubing of certain rigidity and then lose this effect.
As shown in accompanying drawing 3,4, inner chamber 21 internal diameter in the middle of the thread cap 2 of the invention is more than female thread 20 internal diameter；Spiral shell
The female thread 20 of stricture of vagina cap 3 is provided with two grooves 22 running through female thread, and two grooves 22 are symmetrical；The external diameter advancing packing ring 4 is little
In inner chamber 21 internal diameter and two groove 22 ultimate ranges, and more than female thread 20 internal diameter；Collar 3 tail portion 35 external diameter is more than dish
The endoporus of shape pad 5.
Advance packing ring 4 or/and dish pad 5 passes through two grooves 22 enters the inner chamber 21 of thread cap 3, when being put by collar 3
After entering and tail portion 35 is extended to bigger than butterfly pad 5 endoporus after, these four parts will form one, will not at random take off
Go out；Formed one advantage be, one is efficient and convenient during installing and using, safe and reliable, its two prevent abjection after non-specially
Industry personnel can not be reinstalled or reinstall mistake, especially advance packing ring 4 and the position relationship of dish pad 5, its three structures chi
Very little relation, this structure can save material and cost.Being difficult to be combined into one, it is asking of being commonly encountered of pipe fitting industry that parts are scattered
Topic, can effectively be had been resolved by this structure, although add manufacturing procedure and machining accuracy.
As it is shown in figure 5, the close of a placement sealing ring 6 can be provided with on the ramp structure 11 of the main pipe body 1 of the invention
Sealing groove 14, is used for increasing junction sealing effectiveness, and the pipe fitting that the contact surface angle of the invention is general is few, only chamfered portion, logical
Cross increase sealing ring 6 and its security reliability is provided.
Ramp structure 11 part of main pipe body 1, contact surface is little, and complete ring-type profile of tooth 12 is straight on seal for pipe joints impact
Connecing, breach or damage will cause the potential safety hazard of leakage, and main pipe body 1 typically uses copper alloy structure, hardness HV70 ~
Between HV160, hardness is the softest, during actual production, transporting and use, easily damages, for reinforced pipe main pipe body 1
Impact resistance, the head at ramp structure 11 is provided with the stainless steel protection ring 7 that a hardness is high, by anaerobic adhesive or notch etc.
Realize fixing.
Applicant is found by test, when the ramp structure 11 of main pipe body 1 is not less than 25 ° with angle of inclination, axle center, resistance to
Pull-out test less than 25 °, can have the phenomenon that pull-out test cannot pass through by the related request of GB/T19473.3-2004, and
Angle is the least, and percent of pass is the lowest.When angle is more than 40 °, there is the phenomenon of enlarging cracking, especially aluminium-plastic pipe, cracking in tubing
Afterwards the sealing of tubing being produced large effect, angle is the biggest, and the probability of cracking and cracking length are the longest.The invention
Fitting structure, the ramp structure 11 of main pipe body 1 becomes 25 ° to 40 ° for optimum range with angle of inclination, axle center.
The pipe fitting of the invention, compared with the pipe fitting in this field existing, recessed with the annular on collar by ring-type profile of tooth
Flexible pipe after enlarging is engaged and seals by the fit structures of groove etc., it is achieved the connection of full-bore, ramp structure coordinates with tubing
Closely smooth, reduce flow resistance, and can reduce legionella grow space；Dish pad energy sustained release fastening elastic force, pipeline is even
Connecing safe and reliable, practicality is higher, and it is convenient to implement, and has market popularization value.
Claims (7)
1. a pipe fitting, including the main pipe body (1) of at least one end external screw thread (10), also include one with external screw thread (10)
Supporting thread cap (2), it is characterised in that be provided with a ramp structure (11) in external screw thread (10) front end, in ramp structure (11)
It is provided with more than two the ring-type profile of tooth (12) incrementally increased；Also include that a collar (3), collar (3) head have an annular boss
(30), annular boss (30) is provided with interior ramp structure (31), is provided with more than two rings progressively reduced at interior ramp structure (31)
Connected in star (32)；Annular groove (32) coordinates with ring-type profile of tooth (12), the tubing (9) after fit sealing expander；Ring-type profile of tooth
(12) endoporus (13) of position is not less than inner hole of pipe (90)；Set between the annular boss (30) of thread cap (2) and collar (3)
There are propelling packing ring (4) and resilient dish pad (5).
A kind of pipe fitting the most according to claim 1, it is characterised in that: described collar (3) tail portion (35) internal diameter is big
In tubing (9) external diameter；Collar (3) middle part (33) internal diameter is less than tubing (9) external diameter, in collar (3) middle part (33)
Barb recesses (34) it is additionally provided with on inwall.
A kind of pipe fitting the most according to claim 1 and 2, it is characterised in that: the inner chamber (21) at described thread cap (2) middle part
Internal diameter is more than female thread (20) internal diameter；The female thread (20) of thread cap (2) is provided with two grooves running through female thread (20)
(22), two grooves (22) are symmetrical；Advance the external diameter of packing ring (4) maximum less than inner chamber (21) internal diameter and two grooves (22) away from
From, and more than female thread (20) internal diameter；Collar (3) tail portion (35) external diameter is more than the endoporus of dish pad (5).
A kind of pipe fitting the most according to claim 1, it is characterised in that: the ramp structure (11) of described main pipe body (1)
It is provided with a sealing ring (6).
5. according to a kind of pipe fitting described in claim 1 or 2 or 4, it is characterised in that: the inclined-plane knot of described main pipe body (1)
Structure (11) head is provided with a stainless steel protection ring (7).
A kind of pipe fitting the most according to claim 3, it is characterised in that: the ramp structure (11) of described main pipe body (1)
Head is provided with a stainless steel protection ring (7).
A kind of pipe fitting the most according to claim 1, it is characterised in that: the ramp structure (11) of described main pipe body (1)
25 ° to 40 ° are become with angle of inclination, axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610845751.2A CN106322008B (en) | 2016-09-25 | 2016-09-25 | A kind of pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610845751.2A CN106322008B (en) | 2016-09-25 | 2016-09-25 | A kind of pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106322008A true CN106322008A (en) | 2017-01-11 |
| CN106322008B CN106322008B (en) | 2019-01-01 |
Family
ID=57819879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610845751.2A Expired - Fee Related CN106322008B (en) | 2016-09-25 | 2016-09-25 | A kind of pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106322008B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283814A (en) * | 2017-07-12 | 2017-10-24 | 黄德修 | A kind of flexible pipe tube expansion head |
| CN108413146A (en) * | 2018-03-02 | 2018-08-17 | 广东思豪流体技术有限公司 | A kind of pipe fitting |
| CN109099237A (en) * | 2018-09-28 | 2018-12-28 | 苏州丹顿机电有限公司 | A kind of pipe fitting |
| CN109623627A (en) * | 2018-12-20 | 2019-04-16 | 上海中船三井造船柴油机有限公司 | Pneumatic grinding tool and grinding method for high-pressure oil pipe Spherical Seals face |
| CN109798407A (en) * | 2019-02-26 | 2019-05-24 | 郑州博容节能科技有限公司 | Pipeline connecting structure and its pipe expander, connection method, water segregator and valve |
| CN110388524A (en) * | 2019-07-27 | 2019-10-29 | 安徽埃夫利舍建筑技术有限公司 | A kind of double containment flexibility pipe connected pipe fitting |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB564233A (en) * | 1943-06-15 | 1944-09-19 | T C Enstone & Company Successo | Improvements in pipe couplings |
| US3265413A (en) * | 1963-07-25 | 1966-08-09 | Parker Hannifin Corp | Flared tube coupling joint and method for making the same |
| DE4141309A1 (en) * | 1991-03-05 | 1992-09-10 | Hewing Gmbh | Pipe coupling with pipe end forced axially onto sleeve - has pre-expanded pipe end only required to further expand slightly over sleeve conical end portion during assembly |
| CN2366660Y (en) * | 1998-11-06 | 2000-03-01 | 章兆余 | Joint for metal plastic composite pipeline |
| CN2469296Y (en) * | 2001-03-30 | 2002-01-02 | 张俊生 | Aluminium plastic pipe connecting joint |
| CN1502841A (en) * | 2002-11-25 | 2004-06-09 | Smc株式会社 | Pipe joint |
| CN101245883A (en) * | 2007-02-16 | 2008-08-20 | 势彼尔仕塑胶工业（马）有限公司 | A coupling system for polymeric pipes |
| CN102620079A (en) * | 2012-03-27 | 2012-08-01 | 河北省景县景渤石油机械有限公司 | Fire resistant rubber pipe assembly |
-
2016
- 2016-09-25 CN CN201610845751.2A patent/CN106322008B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB564233A (en) * | 1943-06-15 | 1944-09-19 | T C Enstone & Company Successo | Improvements in pipe couplings |
| US3265413A (en) * | 1963-07-25 | 1966-08-09 | Parker Hannifin Corp | Flared tube coupling joint and method for making the same |
| DE4141309A1 (en) * | 1991-03-05 | 1992-09-10 | Hewing Gmbh | Pipe coupling with pipe end forced axially onto sleeve - has pre-expanded pipe end only required to further expand slightly over sleeve conical end portion during assembly |
| CN2366660Y (en) * | 1998-11-06 | 2000-03-01 | 章兆余 | Joint for metal plastic composite pipeline |
| CN2469296Y (en) * | 2001-03-30 | 2002-01-02 | 张俊生 | Aluminium plastic pipe connecting joint |
| CN1502841A (en) * | 2002-11-25 | 2004-06-09 | Smc株式会社 | Pipe joint |
| CN101245883A (en) * | 2007-02-16 | 2008-08-20 | 势彼尔仕塑胶工业（马）有限公司 | A coupling system for polymeric pipes |
| CN102620079A (en) * | 2012-03-27 | 2012-08-01 | 河北省景县景渤石油机械有限公司 | Fire resistant rubber pipe assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283814A (en) * | 2017-07-12 | 2017-10-24 | 黄德修 | A kind of flexible pipe tube expansion head |
| CN107283814B (en) * | 2017-07-12 | 2018-08-03 | 台州半城暖通科技有限公司 | A kind of effective tube expansion head of flexibility |
| CN108413146A (en) * | 2018-03-02 | 2018-08-17 | 广东思豪流体技术有限公司 | A kind of pipe fitting |
| CN109099237A (en) * | 2018-09-28 | 2018-12-28 | 苏州丹顿机电有限公司 | A kind of pipe fitting |
| CN109623627A (en) * | 2018-12-20 | 2019-04-16 | 上海中船三井造船柴油机有限公司 | Pneumatic grinding tool and grinding method for high-pressure oil pipe Spherical Seals face |
| CN109798407A (en) * | 2019-02-26 | 2019-05-24 | 郑州博容节能科技有限公司 | Pipeline connecting structure and its pipe expander, connection method, water segregator and valve |
| CN110388524A (en) * | 2019-07-27 | 2019-10-29 | 安徽埃夫利舍建筑技术有限公司 | A kind of double containment flexibility pipe connected pipe fitting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106322008B (en) | 2019-01-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190325 Address after: 230000 B-1512, west of Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: Anhui Eagle Dragon Industrial Design Co., Ltd. Address before: 317600 Dongping Road, new 83, Dongmen, Yuhuan, Taizhou, Zhejiang Patentee before: Huang Dexiu |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190731 Address after: 526000 East of Duanzhou Eighth Road and North of Fenghua Road, Duanzhou District, Zhaoqing City, Guangdong Province Patentee after: Guangdong Wankang Technology Co., Ltd. Address before: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Patentee before: Anhui Eagle Dragon Industrial Design Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20190925 |