CN207615110U - A kind of sealing device for internal diameter of the pipeline weld seam - Google Patents
A kind of sealing device for internal diameter of the pipeline weld seam Download PDFInfo
- Publication number
- CN207615110U CN207615110U CN201721260442.5U CN201721260442U CN207615110U CN 207615110 U CN207615110 U CN 207615110U CN 201721260442 U CN201721260442 U CN 201721260442U CN 207615110 U CN207615110 U CN 207615110U
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- CN
- China
- Prior art keywords
- telescopic boom
- pipeline
- internal diameter
- weld seam
- sealing device
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 238000004026 adhesive bonding Methods 0.000 claims description 22
- 230000009184 walking Effects 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000003032 molecular docking Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model belongs to pipeline construction equipment technical field, discloses a kind of sealing device for internal diameter of the pipeline weld seam, it is characterized in that：It includes running gear and fixing device；The running gear includes support disk, and the circle centre position of disk is supported to be fixed with the perpendicular supporting sleeve being correspondingly connected in front end.The utility model reasonable integral structure, it is easy to operate, it is compared with complicated and high cost robot device, it is simple in structure, easy to use, and accuracy is fully controllable, economic benefit is apparent for unit in charge of construction, operation difficulty is low, ensure that the sealing effect of inner wall of the pipe.
Description
Technical field
The utility model belongs to pipeline construction equipment technical field, and in particular to one kind being used for internal diameter of the pipeline butt end weld seam
Sealing device.
Background technology
In the prior art, in order to make full use of the underground space and prevent equipment weathering corrosion, the pipe of city central heating
Road can all be embedded to provided underground, not only be not take up the space above road, moreover it is possible to prevent pipeline weathering caused by exposing to the weather rotten
Erosion, pipeline also can be arranged multi-protective layer in outer layer before provided underground and be used for preventing corrosion of the soil to pipeline, pipeline from making
Certain guarantee is obtained with the service life.
But over time, pipeline can not only be corroded in underground by soil, can also from inside to pipeline into
Row corrosion；Pipeline can inject high temperature water body in warm season, by the water temperature of Thermal Corp's water injection end generally at 80 DEG C, and lead in water body
Chemical composition can be often added, is both to be needed to produce also for preventing user's private discharge pipe hot water, high temperature water body and chemistry
Ingredient will necessarily cause to corrode to inner wall of the pipe；And it is anhydrous stopping warm season pipeline inner pumping, pipe temperature reduces, in pipeline
Wall to air by contacting again with water body contact, and by high temperature to the variation low temperature, rusty stain is fairly obvious, over time
The phenomenon that corrosive pipeline leaks is very universal, this is also that current most urban road generally existings constantly excavate showing for repair pipeline
As, and excavate and safeguard it is to be carried out to leak, and the variation of leak pressure difference only after leakage could be found, because
This, urban road constantly converts place, and excavate the phenomenon that filling up very universal, seriously affects trip.
Corrode hot duct from inside in order to prevent, is mostly inner wall one layer of high temperature resistant protective layer of setting in pipeline, in this way
It can be substantially reduced the inner wall corrosion of pipeline, but pipeline itself has regular length, it can will be mostly with pipeline head when being laid with
Tail alignment carries out butt welding laying, and weld is carried out from outer wall, and both easy to operation be also prevented from connect inside
The protective layer at place is not damaged by high temperature, although pipeline is that have the outside weldings of thickness that can be sealed to the outer wall of pipeline,
But the phenomenon that heat transmission, can more or less impact inner wall, and then the protective layer of internal diameter is damaged；Moreover internal diameter
Docking at still can have gap, after prolonged use high temperature water body and chemical cost can constantly corrode internal diameter docking seam
At gap, and the space at gap is small, even if the residual in warm season gap is water stain to be put aside and continuous corrosion pipeline stopping, to make
Gradually corrode from internal diameter butt seam at pipeline, ultimately causes pipe leakage, and in the pipeline of entire city central heating,
Quantity at docking is very huge, is currently to have no idea to protect internal diameter of the pipeline commissure；Therefore, Yi Houkai
The phenomenon that road breaking face and continuous service conduit still can generally existing, trip or can be impacted.
Currently, have some special equipments that can be safeguarded to internal diameter of the pipeline, but itself complexity of its equipment is high, and
The diameter of pipeline needs to be different, the poor universality of special equipment according to heating, and common Thermal Corp is difficult to bear to purchase
Buy and safeguard the expense of professional equipment, moreover Thermal Corp is mostly financial subsidies and the industry that is affected by fuel market, is adopted
It with the complication equipment of profession come to carry out operation be unpractical, is constantly safeguarded with its later stage, not as good as perfect tightness early period.
Very must in conclusion a kind of special equipment that can be sealed to weld seam at internal diameter of the pipeline docking of design has seemed
It wants.
Invention content
The purpose of this utility model is the technical issues of solving to be difficult to seal at above-mentioned internal diameter of the pipeline docking, to provide a kind of use
In the sealing device of internal diameter of the pipeline weld seam, to change the deficiencies in the prior art.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of sealing device for internal diameter of the pipeline weld seam, it includes running gear and fixing device；
The running gear includes support disk, and the circle centre position of disk is supported to be fixed with the perpendicular correspondence in front end even
The supporting sleeve connect；
Both sides at the support disk outer diameter are respectively equipped with mutual corresponding walking basal seat and gluing pedestal；The walking
Telescopic boom I and telescopic boom II with graduated scale, and telescopic boom I and flexible branch are respectively equipped on pedestal and gluing pedestal
Arm II mutually fastens limit by fastening bolt and walking basal seat and gluing pedestal respectively；The top of the telescopic boom I and ten thousand
It is connected with each other to rubber tire；The top of the telescopic boom II is connected with each other with adhesive pouring nozzle；The adhesive pouring nozzle passes through hose and gluing
Pumping plant is interconnected；
The supporting sleeve is equipped with graduated scale；The front end of the supporting sleeve is open equipped with fillet, the inner radius of rear end
Equipped with inserting groove；The inserting groove is equipped with the turntable being mutually inserted with it；
The fixing device includes positioning disc, and the circle centre position of positioning disc is equipped with and is mutually rotatablely connected with supporting sleeve
Bearing block；Several firm bankings are uniformly provided at the outer diameter of the positioning disc；Band is respectively equipped on the firm banking to carve
The telescopic boom III of ruler is spent, and telescopic boom III mutually fastens limit by fastening bolt and firm banking；The telescopic boom
III top is equipped with the fastening pawl of fitting corresponding with outer diameter tube, and fastens pawl and be equipped with the non-slip mat with lines.
For the ease of movement, the 3-7 walking basal seats for carrying universal rubber wheel are uniformly provided at the outer diameter of the support disk.
In order to improve stability, the 3-7 firm bankings with fastening pawl are uniformly provided at the outer diameter of the positioning disc.
For the ease of replacing the adhesive pouring nozzle of different model, the top of the telescopic boom II passes through collar and adhesive pouring nozzle
Mutually it is fastenedly connected.
For the ease of replacing universal rubber wheel, the top of the telescopic boom I passes through silk seat and the universal rubber wheel mutually company of fastening
It connects.
Deformation improves accuracy in order to prevent, and the support disk is fixedly connected by reinforcing rib with supporting sleeve.
Deformation improves accuracy in order to prevent, and the positioning disc is fixedly connected by support arm with asessory shaft bearing.
For the ease of lengthening the length for adapting to pipeline, the supporting sleeve by inserting groove at back end inside diameter with carving
The extension rod of degree ruler is mutually inserted.
For the ease of holding levelness, the positioning disc is equipped with level meter.
The utility model has the beneficial effects that：
1, overall structure is simple and practical, and running gear is moved by universal rubber wheel in pipeline inner horizontal, while can also be with
The central axes of pipeline rotate, and activity is flexibly.
2, the horizontal distance between adhesive pouring nozzle and universal rubber wheel is fixed, when universal rubber wheel touches the weld seam of docking, operation
Personnel can use apparent hand sense of touch, and reference mark ruler is pulled back to out the fixed range between adhesive pouring nozzle and universal rubber wheel and is at this time
Adhesive pouring nozzle can be aligned to weld seam, operation facility.
3, uniform rotation steering wheel is only needed when gluing, makes supporting sleeve rotation and is at the uniform velocity rotated to do adhesive pouring nozzle, is rotated
The scale quantity that is arranged according to adhesive pouring nozzle carry out, gluing is accurate and easy to operate.
4, the pipeline of different-diameter can be adjusted by telescopic boom I, i.e., adjust universal rubber wheel by telescopic boom I
The distance of most outer diameter makes it corresponding with internal diameter of the pipeline can be realized；The pipeline section of different length is lengthened by extension rod；It realizes
The variation of length and diameter, it is applied widely.
Description of the drawings
Attached drawing 1 is the structural representation front view of the utility model；
Attached drawing 2 is the structural representation left view of running gear in the utility model；
Attached drawing 3 is the different variable condition reference charts of attached drawing 2；
Attached drawing 4 is the structural representation left view of fixing device in the utility model；
The variable condition reference chart of the utility model when attached drawing 5 is line size variation.
1- gluings pumping plant 2- steering wheels 3- bearing blocks 4- positioning disc 5- support arm 6- asessory shaft bearings in figure
II 11- reinforcing rib 12- supporting sleeves 13- of 7- collar 8- adhesive pouring nozzle 9- gluing pedestal 10- telescopic booms
Support I 17- seat 18- universal rubber wheel 19- walking basal seats of disk 14- hose 15- pipeline 16- telescopic booms
20- fastens III 24- level meter 25- extension rods 26- of pawl 21- firm banking 22- fastening bolt 23- telescopic booms
Inserting groove.
Specific implementation mode
It is clearly and completely described below in conjunction with attached drawing 1 to 5 the technical solution of the utility model of attached drawing, it is clear that institute
The embodiment of description is the utility model a part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
With reference to attached drawing 1 to attached drawing 5, the utility model it include running gear and fixing device；
The running gear includes support disk 13, and it is perpendicular right to support the circle centre position of disk 13 to be fixed with front end
The supporting sleeve 12 that should be connected；
Both sides at support 13 outer diameter of disk are respectively equipped with mutual corresponding walking basal seat 19 and gluing pedestal 9；Institute
It states and is respectively equipped with telescopic boom I 16 and telescopic boom II 10 with graduated scale on walking basal seat 19 and gluing pedestal 9, and is flexible
Support arm I 16 and telescopic boom II 10 are limited by the mutually fastening of fastening bolt and walking basal seat 19 and gluing pedestal 9 respectively；It is described
The top of telescopic boom I 16 is connected with each other with universal rubber wheel 18；The top of the telescopic boom II 10 is interconnected with 8 phase of adhesive pouring nozzle
It connects；The adhesive pouring nozzle 8 is interconnected by hose 14 and gluing pumping plant 1；
The supporting sleeve 12 is equipped with graduated scale；The front end of the supporting sleeve 12 equipped with fillet be open, rear end it is interior
Inserting groove is equipped at diameter；The inserting groove is equipped with the turntable 2 being mutually inserted with it；
The fixing device includes positioning disc 4, and the circle centre position of positioning disc 4 is equipped with and is mutually rotated with supporting sleeve 12
The bearing block 3 of connection；Several firm bankings 21 are uniformly provided at the outer diameter of the positioning disc 4；Divide on the firm banking 21
Not She You ruler with a scale telescopic boom III 23, and telescopic boom III 23 passes through fastening bolt 22 and firm banking 21 and mutually fastens
Limit；The top of the telescopic boom III 23 is equipped with the fastening pawl 20 of fitting corresponding with 15 outer diameter of pipeline, and fastens and set on pawl 20
There is the non-slip mat with lines.
For the ease of movement, the 3-7 walkings for carrying universal rubber wheel 18 are uniformly provided at the outer diameter of the support disk 13
Pedestal 19.
In order to improve stability, the 3-7 fixation bottoms with fastening pawl 20 are uniformly provided at the outer diameter of the positioning disc 4
Seat 21.
For the ease of replacing the adhesive pouring nozzle of different model, the top of the telescopic boom II 10 passes through collar 7 and note
Glue mouth 8 is mutually fastenedly connected.
For the ease of replacing universal rubber wheel, the top of the telescopic boom I 16 is mutual by silk seat 17 and universal rubber wheel 18
It is fastenedly connected.
Deformation improves accuracy in order to prevent, and the support disk 13 is fixed by reinforcing rib 11 and supporting sleeve 12 to be connected
It connects.
Deformation improves accuracy in order to prevent, and the positioning disc 4 is fixedly connected by support arm 5 with asessory shaft bearing 6.
For the ease of lengthening the length for adapting to pipeline, the supporting sleeve 12 passes through the inserting groove 26 and band at back end inside diameter
There is the extension rod 25 of graduated scale to be mutually inserted.
For the ease of holding levelness, the positioning disc 4 is equipped with level meter 24.
Application method：
First, pipeline first measures the internal diameter of pipeline before initial installation, adjusts telescopic boom I 16 and telescopic boom II 10
Distance；The internal diameter that the outer diameter of universal rubber wheel 18 is less than pipeline by adjustment telescopic boom I 16 is first passed through, is convenient for the dress that will walk in this way
It sets as in pipeline, then adjusts the distance of telescopic boom I 16 one by one according to internal diameter of the pipeline, can refer to graduated scale to determine diameter
Variation, measurement data is accurate；The telescopic boom I 16 that top can be adjusted when adjustment at first, rotates after adjustment again to bottom, the bottom of by
The telescopic boom I 16 in portion adjust to upwards after adjust distance again, in this way will not by the gravity of running gear push influence, adjustment
It is convenient；And the diameter that the outermost of adhesive pouring nozzle 8 rotates is determination at first, i.e. 8 outermost of adhesive pouring nozzle after measuring internal diameter of the pipeline
Diameter be internal diameter certainly less than pipeline, and between gap be exactly follow-up gluing thickness, and the outer diameter of adhesive pouring nozzle 8 becomes
Change the operation and adjustment for not interfering with universal rubber wheel 18；Universal rubber wheel 18 and adhesive pouring nozzle 8 can be to pushing inside pipeline after adjusting.
Secondly, fixing device is fixed in the end of pipeline by fastening pawl 20, the variation of size and data can pass through band
There is the telescopic boom III 23 of graduated scale to be controlled, it is finally that the axis of bearing block 3 is corresponding with the axis of pipeline, and supporting sleeve
Pipe 12 in bearing block 3 as being slidably connected.
Third, running gear and fixing device be ready for it is ready after, gradually running gear is elapsed forward, works as universal rubber wheel
18 when touching the weld seam of pipeline docking, has apparent bumps and jolts place, operating personnel can perceive by steering wheel 2；
At this point, supporting sleeve 12 is reversely pulled out a certain distance, this distance is exactly the distance between adhesive pouring nozzle 8 and universal rubber wheel 18,
The adhesive pouring nozzle 8 for being is aligned the weld seam of pipeline, opens gluing pumping plant 1 and is sent fluid sealant to adhesive pouring nozzle 8 by hose, operating personnel
And uniform rotation steering wheel 2, it is ensured that the speed and glue amount of gluing are uniform；The scale of rotation according to the quantity that adhesive pouring nozzle 8 is arranged come
It determines, when being arranged 3 such as adhesive pouring nozzle 8, rotational angle is 120 degree, and when adhesive pouring nozzle 8 is arranged 4, rotational angle is 90 degree, successively
Analogize；After the completion of gluing, continues reversely to retract supporting sleeve 12 and dismantle the sealing work that weld seam successively can be completed in fixing device
Industry.
The utility model adapt to different-diameter size pipeline, i.e., the variation of operation diameter can by telescopic boom I 16, stretch
Contracting support arm II 10 and telescopic boom III 23 are adjusted, and the axis of operation is consistent with the axis of pipeline, and operate facility；It is different
The pipeline of length dimension can be adjusted by extension rod 25, i.e. the inserting groove of 25 one end of extension rod and 12 internal diameter of supporting sleeve
26 correspond to grafting, and the other end is also by the grafting corresponding with another extension rod 25 of inserting groove 26, since the diameter of pipeline is transported
The limitation of vehicle, length variation is limited, therefore whole in use, showing of hanging of natural torsion caused by can ignoring gravity and fulcrum
Accuracy when as, operation is high, the uniform zero deflection of gluing.
Universal rubber wheel in the utility model is the component uniquely contacted with inner wall of the pipe, is influenced by its material, can
Frictional force when ensureing operation rotation is small, and operation saves hydrodynamic lubrication, and can guarantee that the protective layer in inner wall of the pipe is not extruded
Draw slope, ensure that inner wall of the pipe leakproofness, will not because of forced area the big influence of small and whole gravity and tamper protection layer, be
Critical component in running gear；Adhesive pouring nozzle 8 can pre-adjusted angle of inclination and openings of sizes, convenient for according to the class of weld seam
Type adjusts the thickness and width of gluing, and replaces convenient and efficient.
The utility model reasonable integral structure, it is easy to operate, come pair with complicated and high cost robot device
Than, it is simple in structure, easy to use, and accuracy is fully controllable, economic benefit is apparent for unit in charge of construction, and operation difficulty is low,
It ensure that the sealing effect of inner wall of the pipe.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.
Claims (9)
1. a kind of sealing device for internal diameter of the pipeline weld seam, it is characterized in that：It includes running gear and fixing device；
The running gear includes support disk（13）, and support disk（13）Circle centre position to be fixed with front end perpendicular right
The supporting sleeve that should be connected（12）；
The support disk（13）Both sides at outer diameter are respectively equipped with mutual corresponding walking basal seat（19）With gluing pedestal（9）；
The walking basal seat（19）With gluing pedestal（9）On be respectively equipped with the telescopic boom I with graduated scale（16）With telescopic boom II
（10）, and telescopic boom I（16）With telescopic boom II（10）Pass through fastening bolt walking basal seat respectively（19）With gluing pedestal（9）
Mutually fastening limit；The telescopic boom I（16）Top and universal rubber wheel（18）It is connected with each other；The telescopic boom II（10）
Top and adhesive pouring nozzle（8）It is connected with each other；The adhesive pouring nozzle（8）Pass through hose（14）With gluing pumping plant（1）It is interconnected；
The supporting sleeve（12）It is equipped with graduated scale；The supporting sleeve（12）Front end equipped with fillet be open, rear end it is interior
Inserting groove is equipped at diameter；The inserting groove is equipped with the turntable being mutually inserted with it（2）；
The fixing device includes positioning disc（4）, and positioning disc（4）Circle centre position be equipped with and supporting sleeve（12）Mutually turn
The bearing block of dynamic connection（3）；The positioning disc（4）Outer diameter at be uniformly provided with uniformly several firm banking（21）；It is described
Firm banking（21）On be respectively equipped with the telescopic boom III of ruler with a scale（23）, and telescopic boom III（23）Pass through fastening bolt
（22）With firm banking（21）Mutually fastening limit；The telescopic boom III（23）Top be equipped with and pipeline（15）Outer diameter corresponds to
The fastening pawl of fitting（20）, and fasten pawl（20）It is equipped with the non-slip mat with lines.
2. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The support disk
Outer diameter at be uniformly provided with 3-7 and carry universal rubber wheel（18）Walking basal seat（19）.
3. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The positioning disc
（4）Outer diameter at be uniformly provided with 3-7 with fastening pawl（20）Firm banking（21）.
4. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The telescopic boom
Ⅱ（10）Top pass through collar（7）With adhesive pouring nozzle（8）Mutually it is fastenedly connected.
5. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The telescopic boom
Ⅰ（16）Top pass through silk seat（17）With universal rubber wheel（18）Mutually it is fastenedly connected.
6. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 4, it is characterized in that：The support disk
（13）Pass through reinforcing rib（11）And supporting sleeve（12）It is fixedly connected.
7. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The positioning disc
（4）Pass through support arm（5）With asessory shaft bearing（6）It is fixedly connected.
8. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The supporting sleeve
（12）Pass through the inserting groove at back end inside diameter（26）With the extension rod with graduated scale（25）It is mutually inserted.
9. a kind of sealing device for internal diameter of the pipeline weld seam according to claim 1, it is characterized in that：The positioning disc
（4）It is equipped with level meter（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260442.5U CN207615110U (en) | 2017-09-28 | 2017-09-28 | A kind of sealing device for internal diameter of the pipeline weld seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260442.5U CN207615110U (en) | 2017-09-28 | 2017-09-28 | A kind of sealing device for internal diameter of the pipeline weld seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207615110U true CN207615110U (en) | 2018-07-17 |
Family
ID=62826178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721260442.5U Expired - Fee Related CN207615110U (en) | 2017-09-28 | 2017-09-28 | A kind of sealing device for internal diameter of the pipeline weld seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207615110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638991A (en) * | 2017-09-28 | 2018-01-30 | 高祥桐 | A kind of sealing device for internal diameter of the pipeline weld seam |
-
2017
- 2017-09-28 CN CN201721260442.5U patent/CN207615110U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638991A (en) * | 2017-09-28 | 2018-01-30 | 高祥桐 | A kind of sealing device for internal diameter of the pipeline weld seam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 |