CN108673908A - Process equipment for pipeline fw frp - Google Patents
Process equipment for pipeline fw frp Download PDFInfo
- Publication number
- CN108673908A CN108673908A CN201810279442.2A CN201810279442A CN108673908A CN 108673908 A CN108673908 A CN 108673908A CN 201810279442 A CN201810279442 A CN 201810279442A CN 108673908 A CN108673908 A CN 108673908A
- Authority
- CN
- China
- Prior art keywords
- rotation stop
- die mandrel
- pipeline
- transmission shaft
- frp
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Abstract
The invention discloses a kind of process equipments for pipeline fw frp, including winding rack, track, trolley, the glass fibre wire vent mechanism on the trolley and mechanism of shaking out, the winding rack include bearing, the transmission shaft being rotatably set on the bearing, with transmission shaft rotation stop cooperation and the die mandrel that can coordinate with the connecting shaft grafting and rotation stop relative to connecting shaft that the transmission shaft or so act, one end；The die mandrel is equipped with the spline structure with the material rotation stop cooperation being sheathed on the die mandrel, which includes the first rotation stop part for being fixed on die mandrel one end and the second rotation stop part for being removably connected to the die mandrel other end.The cooperation that the present invention passes through the first, second rotation stop part, enable and realizes that good rotation stop coordinates between die mandrel and the pipeline that is set in outside the die mandrel, ensure that die mandrel drives pipeline to rotate always in rotation, ensure fiberglass uniform winding outside pipeline, the product quality processed is high.
Description
Technical field
The invention belongs to GRP pipe manufacturing device technical fields, and pipeline fw frp is used for more particularly, to one kind
Process equipment.
Background technology
GRP pipe is a kind of lightweight, high-strength, corrosion resistant nonmetal pipeline.It is the glass with resin matrix weight
Fiber is successively wrapped on the pipeline of rotation by technological requirement, and remote quartz sand of equably spreading is used as folder between the fibers
Layer of sand.Its structural pipe wall is rationally advanced, can give full play to the effect of material, in the case where meeting the preceding topic of use intensity, improves steel
Degree, ensure that the stability and reliability of product.
Rotation under pipeline is driven by die mandrel, however a kind of existing process equipment for pipeline fw frp
In, the rotation stop degree of cooperation between die mandrel and tubing is poor, is susceptible to skidding between the two so that plug can not be good
Tubing rotation is driven, glass reinforced plastic winding is not uniform enough, influences product quality.
Invention content
The present invention for overcome the deficiencies in the prior art, provides a kind of high one kind of obtained product quality of processing for managing
The process equipment of road fw frp.
To achieve the goals above, the present invention uses following technical scheme：A kind of processing for pipeline fw frp
Equipment, including winding rack, track, trolley, the glass fibre wire vent mechanism on the trolley and mechanism of shaking out, it is described to twine
Around rack include bearing, rotatably be set to the bearing on transmission shaft, with the transmission shaft rotation stop cooperation and can be relative to this
The connecting shaft of transmission shaft or so action, one end can be with the connecting shaft grafting die mandrels that simultaneously rotation stop coordinates and for driving
State the driving part of transmission shaft rotation；The die mandrel be equipped with be sheathed on the die mandrel material rotation stop cooperation
Spline structure, the spline structure include being fixed on the first rotation stop part of die mandrel one end and to be removably connected to die mandrel another
The second rotation stop part of one end.The cooperation that the present invention passes through the first, second rotation stop part so that die mandrel can be set in the mould
Good rotation stop cooperation is realized between the pipeline for having mandrel outer, is ensured that die mandrel drives pipeline to rotate always in rotation, is protected
Fiberglass uniform winding outside pipeline is demonstrate,proved, the product quality processed is high；Second rotation stop part is detachably to connect with die mandrel
It connects, so that operation of the pipeline when needing by being taken out on die mandrel is more convenient；
Secondly, by the cooperation of setting rotation stop and relatively-movable connecting shaft and transmission shaft, as long as to a left side for control connecting shaft
The connection status for moving right just controllable die mandrel and connecting shaft, consequently facilitating the dismounting of die mandrel, entire disassembly process
Simply, convenient, it has saved the operating time, the production efficiency of raising.
It is intervally distributed with multiple rotation stop protrusions on the first rotation stop part outer surface；By the setting of rotation stop protrusion enhancing with
Frictional force before inner wall of the pipe ensures that die mandrel realizes good rotation stop with pipeline.
The through-hole and be set to that the second rotation stop part includes body, is passed through for the end of the die mandrel on body
Multiple protrusions on the body outer wall；Protrusion enhances the frictional force between body and inner wall of the pipe, realizes pipeline and die mandrel
Stabilization rotation stop.
The body is removably fixed with by screw and the die mandrel；It needs pipeline by being taken out on die mandrel
When, by being taken out in pipeline after body is dismantled, then remove pipeline so that pipeline is subject to that friction is small in dismounting, dismounting
It is more convenient.
The bearing is equipped with the through-hole passed through for the transmission shaft, and buffering is equipped between the through-hole wall and transmission shaft
Device；Since die mandrel can shake during the winding process, and then transmission shaft can be driven to shake together, and by slow
The setting of flushing device can reduce the amplitude that transmission shaft shakes, and then effectively prevent transmission shaft due to shaking and other component
There is a situation where rigid impacts, reduce the damage that transmission shaft is subject to, extend its service life.
The buffer unit includes being set in Buffer Unit and connection and the Buffer Unit and through-hole on the transmission shaft
The first bolster between inner wall, the Buffer Unit include two arc-shaped workpieces, multiple balls on the arc-shaped workpiece and company
The second bolster being connected between two arc-shaped workpiece；The setting of ball ensure that transmission shaft can occur between two arc-shaped workpieces
It relatively rotates, the setting of the first, second bolster can reduce transmission shaft and shake in rotation amplitude, and then effectively prevent
With other component rigid collision occurs for transmission shaft, reduces the damage that transmission shaft is subject to, extends its service life.
In conclusion cooperation of the present invention by the first, second rotation stop part so that die mandrel can be set in the mould
Good rotation stop cooperation is realized between the pipeline for having mandrel outer, is ensured that die mandrel drives pipeline to rotate always in rotation, is protected
Fiberglass uniform winding outside pipeline is demonstrate,proved, the product quality processed is high；Second rotation stop part is detachably to connect with die mandrel
It connects, so that operation of the pipeline when needing by being taken out on die mandrel is more convenient.
Description of the drawings
Fig. 1 is the structural diagram of the present invention one.
Fig. 2 is the structural schematic diagram two of the present invention.
Fig. 3 is the structural schematic diagram of die mandrel in the present invention.
Fig. 4 is enlarged drawing at A in Fig. 2.
Fig. 5 is the connecting axle structure schematic diagram of the present invention.
Fig. 6 is the partial structural diagram of the present invention.
Fig. 7 is the buffer unit structure schematic diagram of the present invention.
Fig. 8 is enlarged drawing at A in Fig. 7.
Fig. 9 is the collection sand mechanism structure schematic diagram of the present invention.
Specific implementation mode
In order to make those skilled in the art be better understood from the present invention program, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention carry out clear, complete description.
As shown in figs 1-9, a kind of process equipment for pipeline fw frp, including winding rack 1, track 2, trolley
3, the glass fibre wire vent mechanism 31 on the trolley and mechanism 32 of shaking out, specifically, the winding rack 1 includes bearing
11, the transmission shaft 12 and 12 rotation stop of the transmission shaft being rotatably set on the bearing coordinate and can be relative to a transmission shaft left sides
The connecting shaft 13 of right action, right end can be with the connecting shaft grafting die mandrels 14 that simultaneously rotation stop coordinates and for driving the biography
Moving axis rotation driving part, specifically, the bearing 11 be equipped with 14 matched two support portion of the die mandrel, from
And die mandrel can be directly placed on bearing, since connecting shaft can be acted relative to transmission shaft or so, and then work as die mandrel
When being placed on bearing, the mating of die mandrel and connecting shaft is achieved that by being moved to the left connecting shaft, and then when connecting
Spindle rotate when can driven mold plug rotate together, likewise, passing through the connecting shaft that moves right, so that it may realize die mandrel with
The separation of connecting shaft, and then convenient for taking off die mandrel from bearing, entire disassembly process is simple, convenient, it is specific to pass
Dynamic process is：Transmission shaft rotation is driven by driving part, and then the connecting shaft with the cooperation of transmission shaft rotation stop is driven to rotate, and most
The die mandrel with connecting shaft rotation stop cooperation is driven to rotate eventually.
Preferably, the die mandrel 14 stops equipped with what is coordinated with the pipeline rotation stop being sheathed on the die mandrel 14
Rotation structure, the spline structure include being fixed on the first rotation stop part 71 of 14 one end of die mandrel and being removably connected to die mandrel
Second rotation stop part 72 of the other end；Specifically, the first rotation stop part 71 is made of metal, can penetrate to pipeline, it is preferred that
The along the circumferential direction evenly spaced rotation stop protrusion 711 that multiple bar shapeds are distributed on first rotation stop part, 71 outer surface.
The second rotation stop part 72 passes through logical including body 721, on body for the end of the die mandrel 14
Hole and multiple protrusions 722 on the body outer wall；The body 721 is made of metal, and the through-hole is arranged in body 721
Central part position on；The protrusion 722 is arranged for strip structure, between multiple protrusions 722 are along the circumferencial direction of the body
Every uniform distribution；Preferably, the body 721 is connect by screw 723 with the die mandrel 14, and then realize two
Person's part is removably fixed with.
Further, on the bearing 11 be equipped with match to control the connecting shaft 13 or so with the connecting shaft 13
The control assembly of action, specifically, the control assembly includes the cuboid framework that bottom end is connect with bearing 11 by shaft
6, the cuboid framework is set in outside connecting shaft, and being horizontally disposed in the cuboid framework has two gag lever posts 61, the company
Spindle 13, which is equipped at the position corresponding to two gag lever posts, is equipped with annular spacing groove 134, and two gag lever post 61 is stuck in annular limit
The top and the bottom of position slot 134, and then during overturning cuboid framework 6, two gag lever posts 61 can be with the side wall of annular spacing groove 134
It is in contact and squeezes, and then connecting shaft 13 can move under the extruding force effect of gag lever post 61 along transmission shaft 12, it is excellent
Choosing, being additionally provided on the bearing 11 can be with 6 matched locating rack 62 of the cuboid framework, the locating rack 62 and cuboid
As soon as being respectively equipped with pin hole on frame 6, cuboid framework can be positioned by being inserted into bolt in two pin holes, at this time
Connecting shaft and die mandrel are in inserting state.
Further, the bearing 11 is equipped with the through-hole 15 passed through for the transmission shaft 12,15 inner wall of the through-hole and
Buffer unit is equipped between transmission shaft 12, specifically, the buffer unit includes being set in Buffer Unit 4 on the transmission shaft 12
The first bolster 5 between connection and 15 inner wall of the Buffer Unit 4 and through-hole, the Buffer Unit 4 include two arc-shaped workpieces
41, multiple balls 42 on the arc-shaped workpiece and the second bolster 43 being connected between two arc-shaped workpiece 41, it is described
First bolster and the second bolster are respectively a compressed spring, and when the Buffer Unit is set on transmission shaft, ball can
It is fitted closely with the lateral wall of rotation axis, and then ensure that transmission shaft can occur between two arc-shaped workpieces by the effect of ball
It relatively rotates, the setting of the first, second bolster can reduce transmission shaft and shake in rotation amplitude, and then effectively prevent
With other component rigid collision occurs for transmission shaft, reduces the damage that transmission shaft is subject to, extends its service life.
Further, 43 both ends of the second bolster are connect by an adjustable spring structure with arc-shaped workpiece 41 respectively passes through
Adjustable spring structure can freely adjust the extruding force of two arc-shaped workpiece of the first bolster pair, and then can remain the first bolster
There is a preferable buffering effect to two arc panels；Specifically, the adjustable spring structure includes being set to second bolster
The adjustment axis 44 at both ends 43, multiple boss 441 in the adjustment axis are set on the arc-shaped workpiece 41 and the adjustment axis
44 matched adjusting cavities 411, two location holes 412 being connected with the adjusting cavity 411 on the arc-shaped workpiece 41 and U-shaped
Locating piece 45 forms locating slot between adjacent two boss 441, when the both ends of U-shaped locating piece are aligned for insertion into two positioning
In hole, by the way that the both ends of U-shaped locating piece 45 are respectively clamped into the locating slot between different location boss, and then adjustment the is realized
The purpose of two bolster both ends distances, and then realize the effect adjusted to the second bolster elastic force, it ensure that the second bolster energy
There is preferable elastic force using to two arc panels, make to ensure that Buffer Unit can play transmission shaft one preferable buffering
With.
Further, the arc-shaped workpiece 41 is bolted together and shape by the identical arc panel of two specifications
At, two arc panel is respectively equipped with a groove at corresponding position, when two arc panels are bolted together,
Two grooves on two arc panel corresponding positions align to form the resettlement groove of confession ball placement.
Further, the transmission shaft 12 is equipped with anti-rotation block 121, and the connecting shaft 13 is equipped with and the anti-rotation block
121 matched rotation stop grooves 131, specifically, the anti-rotation block 121 is to be arranged on transmission shaft lateral wall and along lateral wall week
Two bar shaped convex blocks being uniformly arranged to interval, the connecting shaft are equipped with the cylindrical type being inserted into for the end part of driving shaft and accommodate
Slot, the rotation stop groove 131 are to be arranged in the receiving groove sidewall and along its circumferentially-spaced two strip groove being uniformly arranged, in order to
It realizes that connecting shaft can be moved left and right relative to transmission shaft, ensures that the length of the rotation stop groove 131 is more than the length of the anti-rotation block 121
Degree realizes that the rotation stop of transmission shaft and connecting shaft coordinates by the cooperation of anti-rotation block and rotation stop groove, and then transmission shaft energy in rotation
It drives connecting shaft to rotate together, the length of the anti-rotation block is more than additionally, due to the length of rotation stop groove, and then can be relative to transmission
Axis moves left and right connecting shaft, to conducive to realizing the mating of die mandrel and connecting shaft.
Further, 13 one end of the connecting shaft is equipped with the cylindrical inserting groove being inserted into for described 14 one end of die mandrel
132,14 lateral wall of the die mandrel is equipped with rotation stop column 141, and 132 side wall of the inserting groove is equipped with and the rotation stop column
141 matched card slots 133, when one end of die mandrel is inserted into the inserting groove in connecting shaft, rotation stop column can be caught in
Into card slot, and then the rotation stop for realizing die mandrel and connecting shaft coordinates.
Further, the driving part includes that driving motor 18 and both ends are respectively sleeved at driving motor output shaft and biography
Transmission belt 17 on moving axis, specifically, the driving motor is the general motor that can directly buy in the market, structure and work
Principle is all the prior art, and this will not be repeated here, drives transmission belt rotation by driving motor, and then transmission shaft is driven to turn together
It is dynamic.
Further, the track 2 is arranged in the side of the winding rack, and trolley is arranged on the track and along rail
Road is moved forward and backward, and when trolley is moved along track, resin will be soaked with by the glass fibre wire vent mechanism being arranged on trolley
Glass fiber winding on the mold of pipeline, and while glass fiber winding, quartz sand is dumped by mechanism of shaking out
On the glass fibers, and then as glass fibre is wound into formation burning into sand layer on mold together, since quartz sand is in toppling process
In easily let out from glass fibre and fall and drop on ground, in turn result in the waste of resource, production cost improved, in order to solve this
One problem is provided on the trolley 3 and is wrapped with the 32 matched Ji Sha mechanisms 33 of mechanism of shaking out, the Ji Sha mechanisms 33
The support plate 331 being connected on the trolley and the sand catcher 332 in the support plate are included, the sand catcher is inserted by one
The realization of binding structure is detachably connected with support plate, and the sand catcher 332 is the plastic containers that a top is equipped with opening, the branch
Fagging 331 is a rectangle plank being fixedly connected with a trolley, and the position of the sand catcher 332 and support plate 331 is at die mandrel
Below 14, specifically, the connected structure include be set to the support plate 331 on inserting groove 333 and be set to the collection sand
With 333 matched plug connector 334 of the inserting groove, the inserting groove it is a T-type on setting surface on the supporting plate on slot 332
Slot, the plug connector are the fixed plate for the rectangular parallelepiped structure for being connected in sand catcher bottom, and the fixed plate is pluggable in the T
In type groove, and then realize being detachably connected for sand catcher and support plate.
Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment should all belong to the scope of protection of the invention.
Claims (6)
1. a kind of process equipment for pipeline fw frp, including winding rack（1）, track（2), trolley (3), be set to institute
State glass fibre wire vent mechanism (31) and the mechanism of shaking out on trolley（32）, the winding rack（1）Including bearing (11), can turn
The dynamic transmission shaft on the bearing（12）And the transmission shaft（12）Rotation stop coordinates and can be relative to the transmission shaft left and right moving
The connecting shaft of work（13）, one end can with the connecting shaft grafting and rotation stop cooperation die mandrel（14）And for driving the biography
The driving part of moving axis rotation；It is characterized in that：The die mandrel（14）It is equipped with and is sheathed on the die mandrel（14）On
Material rotation stop cooperation spline structure, the spline structure include be fixed on die mandrel（14）The first rotation stop part of one end（71）
With the second rotation stop part for being removably connected to the die mandrel other end（72）.
2. the process equipment according to claim 1 for pipeline fw frp, it is characterised in that：First rotation stop
Part（71）Multiple rotation stop protrusions are intervally distributed on outer surface（711）.
3. the process equipment according to claim 2 for pipeline fw frp, it is characterised in that：Second rotation stop
Part（72）Including body（721）, be set to body on supply the die mandrel（14）The through-hole that passes through of end and be set to the body
Multiple protrusions on outer wall（722）.
4. the process equipment according to claim 3 for pipeline fw frp, it is characterised in that：The body
（721）Pass through screw and the die mandrel（14）It is removably fixed with.
5. the process equipment according to claim 4 for pipeline fw frp, it is characterised in that：The bearing（11）
It is equipped with and supplies the transmission shaft（12）The through-hole passed through（15）, the through-hole（15）Inner wall and transmission shaft（12）Between be equipped with buffering
Device.
6. the process equipment according to claim 5 for pipeline fw frp, it is characterised in that：The buffer unit
Including being set in the transmission shaft（12）Upper Buffer Unit（4）With connection and the Buffer Unit（4）And through-hole（15）Inner wall it
Between the first bolster（5）, the Buffer Unit（4）Including two arc-shaped workpieces（41）, multiple balls on the arc-shaped workpiece
（42）And it is connected to two arc-shaped workpiece（41）Between the second bolster（43）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279442.2A CN108673908B (en) | 2018-04-01 | 2018-04-01 | Processing equipment for winding glass fiber reinforced plastic on pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279442.2A CN108673908B (en) | 2018-04-01 | 2018-04-01 | Processing equipment for winding glass fiber reinforced plastic on pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108673908A true CN108673908A (en) | 2018-10-19 |
| CN108673908B CN108673908B (en) | 2021-06-25 |
Family
ID=63799334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810279442.2A Active CN108673908B (en) | 2018-04-01 | 2018-04-01 | Processing equipment for winding glass fiber reinforced plastic on pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108673908B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111688240A (en) * | 2020-06-22 | 2020-09-22 | 郭召勋 | Manufacturing and processing technology of glass fiber winding layer of glass fiber reinforced plastic pipeline |
| CN113059823A (en) * | 2021-03-19 | 2021-07-02 | 合肥工业大学 | Internal expansion unfolding mechanism and method for cylindrical carbon fiber winding preparation process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203864030U (en) * | 2014-06-15 | 2014-10-08 | 河北宏润玻璃钢有限公司 | Glass fiber reinforced plastic mortar pipe winding device |
| CN105479774A (en) * | 2015-12-26 | 2016-04-13 | 宁波市江北宏菱新兴绝缘材料有限公司 | Coiling and cutting device for glass fiber reinforced ring |
-
2018
- 2018-04-01 CN CN201810279442.2A patent/CN108673908B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203864030U (en) * | 2014-06-15 | 2014-10-08 | 河北宏润玻璃钢有限公司 | Glass fiber reinforced plastic mortar pipe winding device |
| CN105479774A (en) * | 2015-12-26 | 2016-04-13 | 宁波市江北宏菱新兴绝缘材料有限公司 | Coiling and cutting device for glass fiber reinforced ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111688240A (en) * | 2020-06-22 | 2020-09-22 | 郭召勋 | Manufacturing and processing technology of glass fiber winding layer of glass fiber reinforced plastic pipeline |
| CN113059823A (en) * | 2021-03-19 | 2021-07-02 | 合肥工业大学 | Internal expansion unfolding mechanism and method for cylindrical carbon fiber winding preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108673908B (en) | 2021-06-25 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210609 Address after: 323000 No.57, Tongji street, Shuige Industrial Zone, Liandu District, Lishui City, Zhejiang Province Applicant after: ZHEJIANG YUANWANG ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: 310000 No.3 Workshop of Wuyue Pipeline, Xiasha Yueya Road, Jianggan District, Hangzhou City, Zhejiang Province Applicant before: Lin Huan |
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