CN109210389A - A kind of gas pipeline leakage detection device - Google Patents
A kind of gas pipeline leakage detection device Download PDFInfo
- Publication number
- CN109210389A CN109210389A CN201811350579.9A CN201811350579A CN109210389A CN 109210389 A CN109210389 A CN 109210389A CN 201811350579 A CN201811350579 A CN 201811350579A CN 109210389 A CN109210389 A CN 109210389A
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- Prior art keywords
- slide plate
- spring
- fixed
- wall
- gear
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Abstract
The invention belongs to natural gas line equipment technical field, specifically a kind of gas pipeline leakage detection device, including framework and controller；First slide plate and the equal circular design of the second slide plate, are slidably connected to framework inner wall, and the first slide plate is located at below the second slide plate；Spring is fixed between first slide plate lower surface and machine shaft；The movable plate " u "-shaped design, and movable plate is connect by bearing with fixed ring；Second slide plate lower surface offers sliding slot；There are two sliding blocks for sliding in sliding slot, and sliding block is initially positioned in the both ends of sliding slot, and the first oscillating rod is connected between left slider and right side gear, and the second oscillating rod is connected between right side sliding block and left side gear；Guide hole is offered in the guide block, the spring wire of spring is designed across guide hole；The retractable sack is fixed between alarm device and fixing barrel inner wall, and retractable sack is connected to cylinder；Operation of the present invention is simple and convenient, and detection range is long.
Description
Technical field
The invention belongs to natural gas line equipment technical field, specifically a kind of gas pipeline leakage detection dress
It sets.
Background technique
Natural gas line refer to by natural gas include oil field production associated gas, from exploitation ground or treatment plant be transported to city
The pipeline of air distribution center or Industry enterprise customer, also known as gas pipeline, with the horizontal continuous raising of people's lives, natural gas
Use also come into every household, and required natural gas line to be mounted is also more and more.
Also occur the technical solution of some gas pipeline leakage detection devices in the prior art, such as application No. is
2017216119715 Chinese patent discloses a kind of gas pipeline leakage detection device, including shell, the shell
The bottom of inner wall offers first sliding groove, and the bottom symmetrical setting of the first sliding groove inner wall is there are two the first sliding block, and described the
The front of one sliding block is provided with first rotating shaft, and the surface activity of the first rotating shaft is connected with the first fixed link.
A kind of gas pipeline leakage detection device of the technical solution, by rotating the first screw rod and the second spiral shell manually
Bar extends natural gas inductor, cannot achieve the automatic running of device, and artificial operation is easy to cause when causing danger, behaviour
Making personnel can not withdraw in time, while waste of manpower, do not take the measure for reducing heat or preventing heat from generating in device, visiting
During survey, being easy to produce excessive heat leads to combustion of natural gas, causes danger, needed in operating process two first in command or
Two second handles rotate simultaneously, cause inconvenient.
Summary of the invention
In order to make up for the deficiencies of the prior art, waste of manpower and device operational process in inconvenient, operating process are solved
It is middle to generate excessive heat, the problem of causing combustion of natural gas to be caused danger, a kind of gas pipeline leakage inspection proposed by the present invention
Survey device.
The technical solution adopted by the present invention to solve the technical problems is: a kind of gas pipeline leakage of the present invention
Detection device, including framework and controller；The controller works for control device；The framework bottom interior wall is fixed with electricity
Machine；The motor upper end is equipped with the first slide plate and the second slide plate；First slide plate and the equal circular design of the second slide plate, are slided
It is connected to framework inner wall, the first slide plate is located at below the second slide plate；Rotating plate is equipped with below first slide plate；The rotating plate and
Being connected between one slide plate, there are two cylinders；Spring is fixed between first slide plate lower surface and machine shaft；Described first
The lower surface of slide plate is fixed with fixed ring；Movable plate is equipped with below the fixed ring；The movable plate " u "-shaped design, and it is mobile
Plate is connect by bearing with fixed ring；The movable plate bottom offers opening；It is fixed with guide block in opening, when spring pivotal can
Move up and down movable plate by guide block, bearing is slidably connected to framework inner wall；First slide plate upper surface offers spiral
Slot；Be equipped with gear above first slide plate both ends, gear is slidably connected to frame side wall by fixed link, and gear with
Helicla flute is meshed, and engaging by thread groove and gear when the first slide plate rotates clockwise drives left side gear to turn counterclockwise
Dynamic, right side gear rotates clockwise；Second slide plate lower surface offers sliding slot；There are two sliding block, sliding blocks for sliding in sliding slot
The both ends of sliding slot are initially positioned in, and are connected with the first oscillating rod between left slider and right side gear, right side sliding block and left side
The second oscillating rod is connected between gear；One end of first oscillating rod and the second oscillating rod and corresponding gear are connected, another
End is rotatablely connected with corresponding sliding block；Second slide plate upper surface is fixed with fixing barrel；Natural gas is equipped with above the fixing barrel
Inductor；When work, motor drives spring pivotal, and movable plate is pushed to move up, while spring band turn plate rotates, and makes the first slide plate
Rotation while moving up, the rotation of the first slide plate make that left side gear is driven to rotate counterclockwise, and right side gear rotates clockwise, thus
Make sliding block relative motion, the second slide plate is pushed to move up, so that it is longer to stretch out natural gas inductor, facilitates detection, realize simultaneously
The automatic elongation of device, reduces the consumption of manpower.
Preferably, guide hole is offered in the guide block, the spring wire of spring is designed across guide hole；When work, due to spring
Spring wire designed across guide hole, distortion when effectivelying prevent spring pivotal causes guide block to take off tooth, influences the operation of device, simultaneously
Good fixed function is played, spring swing in rotation is prevented, swings the first sliding block, keep device operation more smooth.
Preferably, the guide hole inner wall is the design of graphite side；When work, good lubricating action is played on graphite side, simultaneously
Friction generates heat for reduction, prevents heat from excessively leading to combustion of natural gas, and when spring pivotal, graphite can uniformly smear spring
Spring wire surface prevents spring aging, improves service life.
Preferably, the fixing barrel is rotationally connected with framework by aluminium ring；The aluminium ring hollow design, and second is full of in it
Alcohol；The aluminium ring inner wall is uniformly coated with pine tar；When work, ethyl alcohol volatilization heat absorption can effectively prevent frictional heat generation, make leakage
Combustion of natural gas generates danger, simultaneously because sealing function, can be such that ethyl alcohol is recycled, pine tar can play good lubrication and make
With.
Preferably, through-hole is uniformly provided in the sliding block, each through-hole upper end is equipped with a steel ball, and steel ball size is big
In through-hole diameter, make steel ball part in through-hole；The steel ball surface is uniformly coated with graphite ash, plays the same of lubricating action
When, reducing steel ball, friction generates heat；When work, the rotation of steel ball can effectively reduce sliding block, and friction generates heat with sliding slot, increases
The service life of strong sliding block, prevents slider wear, while can prevent generation abrasive dust after slider wear from sliding block operation being caused to have some setbacks,
Steel ball can make sliding block sliding more smooth, and the contact area of steel ball and air can be increased by through-hole, and cooperation graphite ash reduces steel
The heat that ball friction generates.
Preferably, the natural gas inductor penetrates fixing barrel design, and natural gas inductor lower end is fixed with alarm device；
The alarm device lower surface is equipped with retractable sack；The retractable sack is fixed between alarm device and fixing barrel inner wall, and retractable sack
It is connected to cylinder；The retractable sack is made of rubber material, is gassy in retractable sack when initial；When work, the first slide plate
It moves up, cooperates rotating plate draft cylinder, so that gas in retractable sack is entered cylinder, the two sides outer wall of retractable sack is pushed to middle shrinkage
Natural gas inductor moves up, and increases outreach.
Beneficial effects of the present invention are as follows:
1. a kind of gas pipeline leakage detection device of the present invention, by the way that the first slide plate, the second slide plate, bullet is arranged
Spring and movable plate move up movable plate, the first slide plate and the second slide plate by the rotation of spring, realize natural gas inductor oneself
It is dynamic to stretch out, the consumption of manpower is reduced, while natural gas inductor can be made to stretch out longer, more convenient detection.
2. a kind of gas pipeline leakage detection device of the present invention passes through gas by setting retractable sack and cylinder
Cylinder stretches, and gas in retractable sack is made to flow to cylinder, so that retractable sack be made to push natural gas inductor, cooperates the first slide plate and the
It is longer that two slide plates stretch out natural gas inductor, increases detection range.
3. a kind of gas pipeline leakage detection device of the present invention passes through setting aluminium ring, small ball and guide block；It is logical
The graphite for crossing ethyl alcohol the cooperation steel ball surface and guide block inner wall in aluminium ring, is greatly reduced the heat generated when device operation, has
Effect prevents the generation of safety accident.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is main view of the invention；
Fig. 2 is the cross-sectional view of sliding block in Fig. 1；
In figure: framework 1, the first slide plate 11, the second slide plate 12, rotating plate 13, spring 14, fixed ring 15, movable plate 16, guide block
17, guide hole 18, gear 2, sliding slot 21, sliding block 22, the first oscillating rod 23, the second oscillating rod 24, through-hole 25, steel ball 26, fixing barrel
3, natural gas inductor 31, aluminium ring 32, alarm device 33, retractable sack 34.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Figure 1 to Figure 2, a kind of gas pipeline leakage detection device, including framework 1 and controller；The control
Device works for control device；1 bottom interior wall of framework is fixed with motor；The motor upper end is equipped with the first slide plate 11 and the
Two slide plates 12；First slide plate 11 and the equal circular design of the second slide plate 12, are slidably connected to 1 inner wall of framework, the first slide plate
11 are located at 12 lower section of the second slide plate；Rotating plate 13 is equipped with below first slide plate 11；Between the rotating plate 13 and the first slide plate 11
Being connected, there are two cylinders；Spring 14 is fixed between first slide plate, 11 lower surface and machine shaft；First slide plate 11
Lower surface be fixed with fixed ring 15；Movable plate 16 is equipped with below the fixed ring 15；16 " u "-shaped of the movable plate design, and
Movable plate 16 is connect by bearing with fixed ring 15；16 bottom of movable plate offers opening；Guide block 17 is fixed in opening,
Spring 14 can be such that movable plate 16 moves up and down when rotating by guide block 17, and bearing is slidably connected to 1 inner wall of framework；Described first is sliding
11 upper surface of plate offers helicla flute；Gear 2 is equipped with above first slide plate, 11 both ends, gear 2 is sliding by fixed link
It is dynamic to be connected to 1 side wall of framework, and gear 2 is meshed with helicla flute, passes through thread groove and tooth when the first slide plate 11 rotates clockwise
The engagement of wheel 2 drives left side gear 2 to rotate counterclockwise, and right side gear 2 rotates clockwise；It opens second slide plate, 12 lower surface
Equipped with sliding slot 21；There are two sliding blocks 22, sliding block 22 to be initially positioned in the both ends of sliding slot 21, and left slider 22 for sliding in sliding slot 21
It is connected with the first oscillating rod 23 between right side gear 2, the second oscillating rod is connected between right side sliding block 22 and left side gear 2
24；One end of first oscillating rod 23 and the second oscillating rod 24 and corresponding gear 2 are connected, and the other end is rotated with corresponding sliding block 22
Connection；Second slide plate, 12 upper surface is fixed with fixing barrel 3；Natural gas inductor 31 is equipped with above the fixing barrel 3；Work
When, motor drives spring 14 to rotate, and pushes movable plate 16 to move up, while spring 14 drives rotating plate 13 to rotate, and makes the first slide plate 11
Rotation while moving up, the rotation of the first slide plate 11 make that left side gear 2 is driven to rotate counterclockwise, and right side gear 2 rotates clockwise,
To make 22 relative motion of sliding block, pushes the second slide plate 12 to move up, so that it is longer to stretch out natural gas inductor 31, facilitate spy
It surveys, while the automatic elongation of realization device, reduces the consumption of manpower.
As one embodiment of the present invention, guide hole 18 is offered in the guide block 17, the spring wire of spring 14 passes through
Guide hole 18 designs；When work, since the spring wire of spring 14 is designed across guide hole 18, distortion when spring 14 being effectively prevent to rotate,
Cause guide block 17 to take off tooth, influence the operation of device, while playing good fixed function, prevents the swing in rotation of spring 14,
The first sliding block 22 is swung, keeps device operation more smooth.
As one embodiment of the present invention, 18 inner wall of guide hole is the design of graphite side；When work, graphite side is played
Good lubricating action, while friction generates heat for reduction, prevents heat from excessively leading to combustion of natural gas, and spring 14 rotates
When, graphite can uniformly smear the spring wire surface of spring 14, prevent 14 aging of spring, improve service life.
As one embodiment of the present invention, the fixing barrel 3 is rotationally connected with framework 1 by aluminium ring 32；The aluminium
32 hollow design of ring, and ethyl alcohol is full of in it；32 inner wall of aluminium ring is uniformly coated with pine tar；When work, ethyl alcohol volatilization heat absorption
It can be effectively prevent frictional heat generation, make the combustion of natural gas of leakage, danger is generated, simultaneously because sealing function, can be such that ethyl alcohol recycles
It uses, pine tar can play good lubricating action.
As one embodiment of the present invention, through-hole 25, each 25 upper end of through-hole are uniformly provided in the sliding block 22
It is equipped with a steel ball 26,26 diameter of steel ball is greater than 25 diameter of through-hole, makes 26 part of steel ball in through-hole 25；26 table of steel ball
Face is uniformly coated with graphite ash, and while playing lubricating action, reducing steel ball 26, friction generates heat；When work, steel ball 26
Rotation can effectively reduce sliding block 22, and friction generates heat with sliding slot 21, enhances the service life of sliding block 22, and anti-limited slip block 22 is worn,
Simultaneously can anti-limited slip block 22 wear after generate abrasive dust the operation of sliding block 22 caused to have some setbacks, steel ball 26 can be such that the sliding of sliding block 22 more flows
Freely, and by through-hole 25 contact area of steel ball 26 Yu air can be increased, cooperation graphite ash reduces the heat that the friction of steel ball 26 generates
Amount.
As one embodiment of the present invention, the natural gas inductor 31 penetrates the design of fixing barrel 3, and natural gas sense
31 lower end of device is answered to be fixed with alarm device 33；33 lower surface of alarm device is equipped with retractable sack 34；The retractable sack 34 is fixed on
Between 3 inner wall of alarm device 33 and fixing barrel, and retractable sack 34 is connected to cylinder；The retractable sack 34 is made of rubber material, just
It is gassy in retractable sack 34 when the beginning；When work, the first slide plate 11 is moved up, and is cooperated 13 draft cylinder of rotating plate, is made retractable sack 34
Interior gas enters cylinder, and the two sides outer wall of retractable sack 34 pushes natural gas inductor 31 to move up, increase swinging radius to middle shrinkage
From.
When work, motor drives spring 14 to rotate, and movable plate 16 is pushed to move up, while spring 14 drives rotating plate 13 to rotate,
Rotation while moving up the first slide plate 11, the rotation of the first slide plate 11 make that left side gear 2 is driven to rotate counterclockwise, right side gear 2
It rotates clockwise, to make 22 relative motion of sliding block, the second slide plate 12 is pushed to move up, when the first slide plate 11 moves up, cooperate rotating plate
13 draft cylinders make gas in retractable sack 34 enter cylinder, and the two sides outer wall of retractable sack 34 is to middle shrinkage, to pass through first
Slide plate 11, the second slide plate 12 and the cooperation of retractable sack 34 push natural gas inductor 31 to move up, and increase outreach.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of gas pipeline leakage detection device, it is characterised in that: including framework (1) and controller；The controller is used
It works in control device；Framework (1) bottom interior wall is fixed with motor；The motor upper end is equipped with the first slide plate (11) and the
Two slide plates (12)；First slide plate (11) and the second slide plate (12) equal circular design, are slidably connected to framework (1) inner wall,
First slide plate (11) is located at below the second slide plate (12)；Rotating plate (13) are equipped with below first slide plate (11)；The rotating plate
(13) being connected between the first slide plate (11), there are two cylinders；First slide plate (11) is connected between lower surface and machine shaft
There are spring (14)；The lower surface of first slide plate (11) is fixed with fixed ring (15)；It is equipped with and moves below the fixed ring (15)
Movable plate (16)；Movable plate (16) the " u "-shaped design, and movable plate (16) is connect by bearing with fixed ring (15)；The shifting
Movable plate (16) bottom offers opening；It is fixed in opening guide block (17), spring (14) can make to move when rotating by guide block (17)
Movable plate (16) moves up and down, and bearing is slidably connected to framework (1) inner wall；First slide plate (11) upper surface offers spiral
Slot；It is equipped with gear (2) above first slide plate (11) both ends, gear (2) is slidably connected to framework (1) by fixed link
Side wall, and gear (2) is meshed with helicla flute, nibbling by thread groove and gear (2) when the first slide plate (11) rotates clockwise
It closes, drives left side gear (2) to rotate counterclockwise, right side gear (2) rotates clockwise；Second slide plate (12) lower surface opens up
There are sliding slot (21)；There are two sliding block (22), sliding block (22) is initially positioned in the both ends of sliding slot (21), and left for sliding in sliding slot (21)
It is connected between side slide (22) and right side gear (2) the first oscillating rod (23), between right side sliding block (22) and left side gear (2)
It is connected with the second oscillating rod (24)；One end of first oscillating rod (23) and the second oscillating rod (24) and corresponding gear (2) are solid
Even, the other end is rotatablely connected with corresponding sliding block (22)；Second slide plate (12) upper surface is fixed with fixing barrel (3)；It is described solid
Determine to be equipped with natural gas inductor (31) above bucket (3).
2. a kind of gas pipeline leakage detection device according to claim 1, it is characterised in that: in the guide block (17)
It offers guide hole (18), the spring wire of spring (14) is designed across guide hole (18), is prevented spring (14) from distorting when rotating, is caused
Block (17) falls off.
3. a kind of gas pipeline leakage detection device according to claim 2, it is characterised in that: in the guide hole (18)
Wall is the design of graphite side, plays good lubricating action, while friction generates heat for reduction, and when spring (14) rotation, graphite
The spring wire surface that spring (14) can uniformly be smeared, prevents spring (14) aging, improves service life.
4. a kind of gas pipeline leakage detection device according to claim 1, it is characterised in that: the fixing barrel (3)
Framework (1) is rotationally connected with by aluminium ring (32)；Aluminium ring (32) hollow design, and ethyl alcohol is full of in it, it can effectively prevent
Frictional heat generation, simultaneously because sealing function, can be such that ethyl alcohol is recycled；Aluminium ring (32) inner wall is uniformly coated with pine tar, can
Play good lubricating action.
5. a kind of gas pipeline leakage detection device according to claim 1, it is characterised in that: in the sliding block (22)
It is uniformly provided with through-hole (25), each through-hole (25) upper end is equipped with a steel ball (26), and steel ball (26) diameter is greater than through-hole
(25) diameter makes steel ball (26) partially in through-hole (25)；Steel ball (26) surface is uniformly coated with graphite ash, plays lubrication
While effect, reducing steel ball (26), friction generates heat.
6. a kind of gas pipeline leakage detection device according to claim 1, it is characterised in that: the natural gas induction
Device (31) penetrates fixing barrel (3) design, and natural gas inductor (31) lower end is fixed with alarm device (33)；The alarm device (33)
Lower surface is equipped with retractable sack (34)；The retractable sack (34) is fixed between alarm device (33) and fixing barrel (3) inner wall, and stretches
Contracting capsule (34) is connected to cylinder；The retractable sack (34) is made of rubber material, is retractable sack (34) interior gassy when initial,
When the two sides outer wall of retractable sack (34) is to middle shrinkage, natural gas inductor (31) can be pushed to move up, increase outreach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350579.9A CN109210389B (en) | 2018-11-14 | 2018-11-14 | Natural gas line leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350579.9A CN109210389B (en) | 2018-11-14 | 2018-11-14 | Natural gas line leakage detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109210389A true CN109210389A (en) | 2019-01-15 |
| CN109210389B CN109210389B (en) | 2020-11-03 |
Family
ID=64996261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811350579.9A Active CN109210389B (en) | 2018-11-14 | 2018-11-14 | Natural gas line leakage detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109210389B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332599A (en) * | 1994-06-06 | 1995-12-22 | Koatsu Gas Hoan Kyokai | Gas leakage judging method |
| EP1243772A2 (en) * | 2001-03-23 | 2002-09-25 | C.R.F. Società Consortile per Azioni | Diagnostics system for tracing leaks from a gas-supply system and for checking operation of the valves forming part of said system |
| CN102563364A (en) * | 2012-03-07 | 2012-07-11 | 张钧 | Monitoring and positioning device for leakage of gas delivery pipe |
| CN204879463U (en) * | 2015-08-28 | 2015-12-16 | 华盛流体分离科技（厦门）有限公司 | Pipeline fluid equipment |
| CN106051469A (en) * | 2016-07-22 | 2016-10-26 | 宁波星箭航天机械有限公司 | Pipeline leakage detection device and detection method |
| CN108167660A (en) * | 2018-02-05 | 2018-06-15 | 芜湖雅园装饰工程有限公司 | A kind of natural gas intelligent locking device |
| CN108167656A (en) * | 2018-02-13 | 2018-06-15 | 王炯锋 | A kind of gas pipeline leakage detection device |
-
2018
- 2018-11-14 CN CN201811350579.9A patent/CN109210389B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332599A (en) * | 1994-06-06 | 1995-12-22 | Koatsu Gas Hoan Kyokai | Gas leakage judging method |
| EP1243772A2 (en) * | 2001-03-23 | 2002-09-25 | C.R.F. Società Consortile per Azioni | Diagnostics system for tracing leaks from a gas-supply system and for checking operation of the valves forming part of said system |
| CN102563364A (en) * | 2012-03-07 | 2012-07-11 | 张钧 | Monitoring and positioning device for leakage of gas delivery pipe |
| CN204879463U (en) * | 2015-08-28 | 2015-12-16 | 华盛流体分离科技（厦门）有限公司 | Pipeline fluid equipment |
| CN106051469A (en) * | 2016-07-22 | 2016-10-26 | 宁波星箭航天机械有限公司 | Pipeline leakage detection device and detection method |
| CN108167660A (en) * | 2018-02-05 | 2018-06-15 | 芜湖雅园装饰工程有限公司 | A kind of natural gas intelligent locking device |
| CN108167656A (en) * | 2018-02-13 | 2018-06-15 | 王炯锋 | A kind of gas pipeline leakage detection device |
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| Publication number | Publication date |
|---|---|
| CN109210389B (en) | 2020-11-03 |
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Effective date of registration: 20201015 Address after: 225814 No. 63 civilized road, Sheyang Lake Town, Baoying County, Yangzhou, Jiangsu Applicant after: BAOYING RUNHUA STATIC COATING ENGINEERING Co.,Ltd. Address before: 610041 Southwest Jiaotong University, West Park of Chengdu High-tech Zone, Sichuan Province Applicant before: Shi Hongyang |
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Address after: 225814 63 civilization Road, Sheyang Town, Baoying County, Yangzhou, Jiangsu Patentee after: Jiangsu Runhua Coating Engineering Co.,Ltd. Address before: 225814 63 civilization Road, Sheyang Town, Baoying County, Yangzhou, Jiangsu Patentee before: BAOYING RUNHUA STATIC COATING ENGINEERING CO.,LTD. |