CN108825905A - A kind of ripple pipe coupling component - Google Patents
A kind of ripple pipe coupling component Download PDFInfo
- Publication number
- CN108825905A CN108825905A CN201810773464.4A CN201810773464A CN108825905A CN 108825905 A CN108825905 A CN 108825905A CN 201810773464 A CN201810773464 A CN 201810773464A CN 108825905 A CN108825905 A CN 108825905A
- Authority
- CN
- China
- Prior art keywords
- annular
- outer barrel
- inner cylinder
- toothing
- pipe coupling
- 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
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000005060 rubber Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000032258 transport Effects 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
- F16L33/035—Hose-clips fixed by means of teeth or hooks
-
- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
- F16L33/10—Hose-clips with a substantially-radial tightening member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a kind of ripple pipe coupling components, including connecting cylinder and adapter, wherein, connecting cylinder includes outer barrel, there is the inner cylinder of annular, interior tube rear end is fixed on the inner sidewall of outer barrel, and inner cylinder front end is uniformly provided with multiple tracks notch and forms first annular toothing in outer barrel, installation cavity is formed between inner cylinder and outer barrel, bellows one end is planted to be abutted into installation cavity and by inner cylinder;Adapter includes the shape for hat connector being connected and tubular tensioning head, and the inner sidewall of shape for hat connector has the internal screw thread to connecting pipe, and tubular tensioning head front end opens up notch and forms the second annular toothing;Also, the second annular toothing is mutually twisted with first annular toothing.Bellows can be easily connected in connecting pipe by its technical solution, carry out piping connection again it is not necessary that its front end is additionally drawn into light-pipe structure after bellows is cut, convenient and reliable, and leakproofness is preferable.
Description
Technical field
The present invention relates to corrugated pipe connector part technical field more particularly to a kind of ripple pipe coupling components.
Background technique
Bellows is a kind of flexible pipeline, is commonly applied to combustion gas and transports, and is set generally by bellows manufacture
For what light pipe was formed in a manner of being compressed axially, so that the folded projections structure of annular is formed in tube wall periphery, and when in use,
It needs the both ends of bellows light-pipe structure being straightened into again, enables to be connected with the connecting pipe of current universality
It connects.But on the one hand this operation makes the tube wall of the light-pipe structure after stretching become fragile because of metal fatigue, after long-time service
It is easy to be corroded, on the other hand such operation is also and inconvenient, needs to return to after cutting bellows preset length and is straightened
Flattening operations are carried out in equipment, for the personnel in outer operation, are extremely inconvenience, are needed preparatory measurement demand length simultaneously
It cuts and is straightened in advance, considerably increase the work load of operating personnel.
Summary of the invention
For the above-mentioned problems in the prior art, one kind is now provided and is intended to easily to be connected to bellows
On jointed tubular workpieces and it is not necessary that its front end is additionally drawn into the bellows that light-pipe structure carries out piping connection again after bellows is cut
Connection component, to overcome above-mentioned technological deficiency.
Specific technical solution is as follows:
A kind of ripple pipe coupling component, including connecting cylinder and adapter, wherein connecting cylinder includes outer barrel, in outer barrel
Inner cylinder with annular, and interior tube rear end is fixed on the inner sidewall of outer barrel, inner cylinder front end is uniformly provided with multiple tracks and prolongs along axial direction
The notch stretched simultaneously forms first annular toothing, and the installation cavity of annular is formed between the lateral wall of inner cylinder and the inner sidewall of outer barrel,
The inner sidewall that bellows is abutted in installation cavity and by the lateral wall of inner cylinder front end is planted by connecting cylinder front end in bellows one end;
Adapter includes the shape for hat connector being connected from the front to the back and tubular tensioning head, the inner sidewall of shape for hat connector
With the internal screw thread to connecting pipe, tubular tensioning head front end is uniformly provided with notch that multiple tracks axially extends and forms the
Second ring toothing, and the front end of tubular tensioning head is protruded by the rear end of connecting cylinder and mutual clamping;
Also, the second annular toothing is gradually spread out on direction from the front to the back, and with first after protruding into connecting cylinder
Annular toothing is mutually twisted.
Preferably, the notch quantity and width that open up on first annular toothing, the second annular toothing are all the same, and slot
The riser size formed between mouth width degree and adjacent notch is identical.
Preferably, in offering one of annular groove on the inner sidewall of inner cylinder, in having one on the periphery wall of tubular tensioning head
The annular protrusion that road and annular groove match.
Preferably, outer barrel and inner cylinder are integrated.
Preferably, the rear end of connecting cylinder offers the first half slot being circular layout together, in the front end of tubular tensioning head
Face offers second half slot opposite with the first semicircle groove location, and structure after the first half slot and the mutual split of the second half slot
At the round slot structure to accommodate O-ring.
Preferably, in offering the thread groove to match with the periphery ripple struction of bellows on the inner sidewall of outer barrel.
Preferably, in being also embedded with a rubber ring on the inner sidewall of outer barrel.
Preferably, on direction from the front to the back, first annular toothing is also abducent, and first annular tooth knot
Amplitude of the amplitude of structure extension less than the second annular tooth structure extension.
The beneficial effect of above-mentioned technical proposal is:
Ripple pipe coupling component includes connecting cylinder and adapter, and connecting cylinder includes outer barrel, and adapter includes shape for hat connection
Head and tubular are tensioned head, are planted by connecting cylinder front end into bellows and clamp bellows by the outboard sidewalls of installation cavity, by tubular
The rear end of tensioning head is spirally connected connecting pipe, makes it possible to that easily bellows is connected in connecting pipe, without additionally in wave
Its front end is drawn into light-pipe structure after cutting and carries out piping connection again by line pipe, convenient and reliable, and leakproofness is preferable.
Detailed description of the invention
Fig. 1 is the structural exploded view of ripple pipe coupling component of the present invention;
Fig. 2 is the structural exploded view at another visual angle of ripple pipe coupling component of the present invention;
Fig. 3 is the perspective view of connecting cylinder in ripple pipe coupling component of the present invention;
Fig. 4 is the perspective view at another visual angle of connecting cylinder in ripple pipe coupling component of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
1 to 4 pair of attached drawing of example combination ripple pipe coupling component provided by the invention is applied to be specifically addressed.
It refering to fig. 1 and Fig. 2, is the structural exploded view of ripple pipe coupling component;It is bellows connection group in conjunction with Fig. 3 and Fig. 4
The perspective view of connecting cylinder in part.And be the structure feature of clear display the present embodiment, it is omitted in figure and part-structure is shown.And it defines
It is as shown in Figure 1 direction from the front to the back by the direction of adapter to connecting cylinder to bellows.
As shown in Fig. 1 to 4, ripple pipe coupling component provided by the invention includes connecting cylinder and adapter, wherein connection
Cylinder includes outer barrel 1, has the inner cylinder 2 of annular in outer barrel 1, and 2 rear end of inner cylinder is fixed on the inner sidewall of outer barrel 1, inner cylinder 2
Front end is uniformly provided with the notch that multiple tracks axially extends and forms first annular toothing, the lateral wall and outer barrel 1 of inner cylinder 2
Inner sidewall between formed annular installation cavity, 5 one end of bellows is planted by connecting cylinder front end in installation cavity and by 2 front end of inner cylinder
Lateral wall abut bellows 5 inner sidewall;
Adapter include the shape for hat connector 3 being connected from the front to the back and tubular tensioning head 4, shape for hat connector 3 it is interior
Side wall has the internal screw thread (not shown) to connecting pipe, and tubular tensioning 4 front end of head is uniformly provided with multiple tracks along axial
The notch of extension simultaneously forms the second annular toothing, and the front end of tubular tensioning head 4 protruded by the rear end of connecting cylinder and and with it is interior
2 mutual clampings of cylinder;
Also, the second annular toothing is gradually spread out on direction from the front to the back, i.e., diameter from the front to the back gradually increases
Greatly, and after protruding into connecting cylinder it is mutually twisted with first annular toothing, specifically, first annular toothing, the second annular tooth
The notch quantity and width opened up in structure is all the same, and the riser size formed between width of rebate and adjacent notch is identical.?
The annular toothing of two of interlaced setting can further compress the inner sidewall of bellows 5 after being overlapped mutually, so that close
Envelope property is more preferable.
Based on the above-mentioned technical proposal, 5 connection component of bellows includes connecting cylinder and adapter, and connecting cylinder includes outer barrel 1,
Adapter include shape for hat connector 3 and tubular tensioning head 4, bellows 5 is planted by connecting cylinder front end and by installation cavity inside and outside
Side wall clamps bellows 5, is spirally connected connecting pipe by the rear end of tubular tensioning head 4, makes it possible to easily be connected to bellows 5
In connecting pipe, piping connection is carried out again it is not necessary that its front end is additionally drawn into light-pipe structure after bellows 5 is cut, it conveniently can
It leans on, and leakproofness is preferable.
In a preferred embodiment, it in offering one of annular groove 6 on the inner sidewall of inner cylinder 2, is tensioned in tubular
There is the annular protrusion 7 to match together with annular groove 6, to plant by tubular tensioning head 4 into connecting cylinder on first 4 periphery wall
Afterwards, annular protrusion 7 is caught in annular groove 6 and realizes clamping effect.Further, outer barrel 1 and inner cylinder 2 are integrated.Further
, the rear end of connecting cylinder offers the first half slot 9 being circular layout together, in tubular tensioning head 4 front end face offer with
The second opposite half slot 8 of first half slot, 9 position, and after the first half slot 9 and the mutual split of the second half slot 8 constitute to
The round slot structure of O-ring is accommodated, to further realize leakproofness.Further, in offered on the inner sidewall of outer barrel 1 with
The thread groove (not shown) that the periphery ripple struction of bellows 5 matches, makes it possible to connect connecting cylinder in a manner of screwing
Bellows 5 is connect, and mutual connection is more firm, is not easy to.Further, in also embedding on the inner sidewall of outer barrel 1
Equipped with a rubber ring (not shown), to further function as sealing effect.Further, on direction from the front to the back, the
One annular toothing be also it is abducent, i.e., diameter is gradually increased, but extended amplitude is less than the second annular tooth structure extension
Amplitude.
In specifically used, bellows 5 is directly planted in installation cavity by screw thread, then is planted by connection tube rear end into cylinder
Shape is tensioned head 4, until annular protrusion 7 is embedded in into the mutual clamping of annular groove 6, can appropriate turn shape for hat connector 3 make two rings
Mutual clamping between shape toothing, i.e., in the riser card merging notch between adjacent notch, however, you can also not turn, the first of inner cylinder 2
Annular tooth structural outer rim against bellows 5 inner sidewall so that bellows 5 is pressed in installation cavity, and shape for hat connector 3
Rear end screws connecting pipe, and the connection of bellows 5 can be realized.In addition, tubular tensioning head 4 and shape for hat connector 3 are along axis
It offers to the channel by combustion gas.
In addition, basic content is same as described above as a kind of different embodiment, the difference is that, in this reality
It applies in example, inner cylinder 2 is made of plastic cement or rubber material, and outer barrel 1 is made of metal material, and tubular is tensioned head 4 then can be with
Plastic cement or rubber or metal material, and inner cylinder 2 and outer barrel 1 be not it is integrated, specifically can by being clamped, be spirally connected or
Other modes are realized such as the mode being directly embedded when producing, so that itself there is elasticity, better tightness, and in this implementation
In example, 2 front end of inner cylinder does not open up first annular toothing, and tubular tensioning 4 front end of head does not open up the second annular toothing yet, completely
By the two abut each other after to 1 direction of outer barrel compress bellows 5, plastic cement material itself have elasticity and sealing characteristic, energy
Enough effects for equally realizing convenient and reliable interconnection and sealing.
The foregoing is merely presently preferred embodiments of the present invention, is merely illustrative for the purpose of the present invention, and not restrictive
's.Those skilled in the art understand that in the spirit and scope defined by the claims in the present invention many changes can be carried out to it,
It modifies or even equivalent, but falls in protection scope of the present invention.
Claims (8)
1. a kind of ripple pipe coupling component, which is characterized in that including connecting cylinder and adapter, wherein
The connecting cylinder includes outer barrel (1), has the inner cylinder (2) of annular in the outer barrel (1), and after the inner cylinder (2)
End is fixed on the inner sidewall of the outer barrel (1), and inner cylinder (2) front end is uniformly provided with notch that multiple tracks axially extends simultaneously
First annular toothing is formed, forms the installation of annular between the lateral wall of the inner cylinder (2) and the inner sidewall of the outer barrel (1)
Chamber, described bellows (5) one end are planted by the connecting cylinder front end in the installation cavity and by the outer of the inner cylinder (2) front end
Side wall abuts the inner sidewall of the bellows (5);
The adapter includes the shape for hat connector (3) being connected from the front to the back and tubular tensioning head (4), the shape for hat connection
The inner sidewall of head (3) has the internal screw thread to connecting pipe, and tubular tensioning head (4) front end is uniformly provided with multiple tracks along axis
To the notch and the annular toothing of formation second of extension, and the front end of tubular tensioning head (4) is by the rear end of the connecting cylinder
Protrude into and with the inner cylinder (2) mutual clamping;
Also, the second annular toothing is gradually spread out on direction from the front to the back, and after protruding into the connecting cylinder with
The first annular toothing is mutually twisted.
2. ripple pipe coupling component as described in claim 1, which is characterized in that the first annular toothing, the second annular
The notch quantity and width opened up on toothing is all the same, and the riser size formed between the width of rebate and adjacent notch
It is identical.
3. ripple pipe coupling component as claimed in claim 2, which is characterized in that opened up on the inner sidewall of the inner cylinder (2)
There are one of annular groove (6), in the ring on the periphery wall of tubular tensioning head (4) with one with the annular groove (6) matching
Shape protrusion (7).
4. ripple pipe coupling component as claimed in claim 3, which is characterized in that the outer barrel (1) and the inner cylinder (2) are
One.
5. ripple pipe coupling component as claimed in claim 4, which is characterized in that the rear end of the connecting cylinder offers one of ring
The first half slot (9) of shape arrangement, offers and the first half slot (9) position in the front end face of tubular tensioning head (4)
Opposite the second half slot (8) is set, and is constituted after the mutually split of first half slot (9) and the second half slot (8) to hold
Receive the round slot structure of O-ring.
6. ripple pipe coupling component as claimed in claim 5, which is characterized in that opened on the inner sidewall of the outer barrel (1)
Equipped with the thread groove with the matching of the periphery ripple struction of bellows (5).
7. ripple pipe coupling component as claimed in claim 6, which is characterized in that on the inner sidewall of the outer barrel (1)
Embedded with a rubber ring.
8. ripple pipe coupling component as claimed in claim 7, which is characterized in that on direction from the front to the back, described first
Annular toothing is also abducent, and the amplitude of the first annular toothing extension is less than the described second annular toothing
The amplitude of extension.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810773464.4A CN108825905B (en) | 2018-07-14 | 2018-07-14 | Corrugated pipe connecting assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810773464.4A CN108825905B (en) | 2018-07-14 | 2018-07-14 | Corrugated pipe connecting assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108825905A true CN108825905A (en) | 2018-11-16 |
CN108825905B CN108825905B (en) | 2020-02-14 |
Family
ID=64137333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810773464.4A Active CN108825905B (en) | 2018-07-14 | 2018-07-14 | Corrugated pipe connecting assembly |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108825905B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110835946A (en) * | 2019-11-11 | 2020-02-25 | 衡阳市业通塑胶有限公司 | Improved pipeline water accumulation device |
CN114191938A (en) * | 2021-12-29 | 2022-03-18 | 广东聚核创展科技有限公司 | Vulcanizing machine tail gas recovery system and tail gas recovery method |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB212431A (en) * | 1923-03-27 | 1924-03-13 | Reddaway And Company Ltd F | An improved hose coupling or connection |
DE554049C (en) * | 1931-02-18 | 1932-07-01 | Rifat Avigdor | Hose connection, consisting of a funnel-shaped enlarged sleeve, a clamp and a nipple pushed into the hose |
US20070016166A1 (en) * | 2005-07-08 | 2007-01-18 | Thistle Robert C | Catheter attachment collet for a central port |
DE102009021700A1 (en) * | 2009-05-17 | 2010-11-18 | Hidde, Axel, Dipl.-Ing. | Universal quick-release fitting |
CN203202473U (en) * | 2013-04-19 | 2013-09-18 | 郑剑丹 | Connecting structure of helical bellows and pipe |
CN205207996U (en) * | 2015-12-22 | 2016-05-04 | 赵从军 | Detachable collect water device |
CN205781589U (en) * | 2016-06-30 | 2016-12-07 | 山东龙口特种胶管有限公司 | The rubber hose coupling of compound seal is withheld in sulfuration |
CN206478358U (en) * | 2016-10-19 | 2017-09-08 | 徐军 | A kind of direct insertion corrugated pipe connector |
-
2018
- 2018-07-14 CN CN201810773464.4A patent/CN108825905B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB212431A (en) * | 1923-03-27 | 1924-03-13 | Reddaway And Company Ltd F | An improved hose coupling or connection |
DE554049C (en) * | 1931-02-18 | 1932-07-01 | Rifat Avigdor | Hose connection, consisting of a funnel-shaped enlarged sleeve, a clamp and a nipple pushed into the hose |
US20070016166A1 (en) * | 2005-07-08 | 2007-01-18 | Thistle Robert C | Catheter attachment collet for a central port |
DE102009021700A1 (en) * | 2009-05-17 | 2010-11-18 | Hidde, Axel, Dipl.-Ing. | Universal quick-release fitting |
CN203202473U (en) * | 2013-04-19 | 2013-09-18 | 郑剑丹 | Connecting structure of helical bellows and pipe |
CN205207996U (en) * | 2015-12-22 | 2016-05-04 | 赵从军 | Detachable collect water device |
CN205781589U (en) * | 2016-06-30 | 2016-12-07 | 山东龙口特种胶管有限公司 | The rubber hose coupling of compound seal is withheld in sulfuration |
CN206478358U (en) * | 2016-10-19 | 2017-09-08 | 徐军 | A kind of direct insertion corrugated pipe connector |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110835946A (en) * | 2019-11-11 | 2020-02-25 | 衡阳市业通塑胶有限公司 | Improved pipeline water accumulation device |
CN110835946B (en) * | 2019-11-11 | 2021-03-16 | 衡阳市业通塑胶有限公司 | Pipeline water accumulator |
CN114191938A (en) * | 2021-12-29 | 2022-03-18 | 广东聚核创展科技有限公司 | Vulcanizing machine tail gas recovery system and tail gas recovery method |
Also Published As
Publication number | Publication date |
---|---|
CN108825905B (en) | 2020-02-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4763932A (en) | Hose coupling | |
CN86104733A (en) | Coupling for corrugated conduit | |
US9194517B2 (en) | Tube splicing device | |
CN108825905A (en) | A kind of ripple pipe coupling component | |
US7658418B1 (en) | Swivel connector for nonmetallic electrical conduit | |
US10054249B2 (en) | Universal tube fitting adaptable for different sized tubes | |
CN105757367B (en) | A kind of ferrule fitting device | |
CN108799668A (en) | A kind of mounting assembly being connected with pipe fitting convenient for bellows | |
US20110302764A1 (en) | Woven mesh braid connection tool | |
JPH01116395A (en) | Pipe joint | |
IT201600093853A1 (en) | Universal system of indissoluble joint for pipes and joint included in said system | |
CN203442379U (en) | Quick-inserting-type pipe joint | |
US20070148024A1 (en) | Pump | |
US20050200126A1 (en) | Connecting device for fluid conduits | |
US9657877B2 (en) | Tube coupling device | |
CN104110545A (en) | Quick-plugging pipe connector | |
ATE299570T1 (en) | COUPLING, WITH A SLIDE RING, FOR CONNECTING TWO FIRE HOSES | |
KR200259927Y1 (en) | The connecting pipe of highprresure hose for agriculture | |
CN206786165U (en) | A kind of portable pipeline connecting assemble | |
CN110939801A (en) | Ferrule type pipe joint | |
KR200445021Y1 (en) | A Union for flexible joint | |
US20060180219A1 (en) | Adapter for branching a hose | |
CN213598762U (en) | PE water supply pipe | |
CN220727464U (en) | Quick-operation joint is connected to hosepipe | |
GB2326453A (en) | Universal tube connector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20200117 Address after: 410000 No.8, Lixiang Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Applicant after: Changsha Xingsha Xinao Gas Co., Ltd Address before: 315440 No. 357, Tang Tian Cun District, Siming Mountain Town, Yuyao City, Ningbo, Zhejiang. Applicant before: Tang Shanshan |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant |