CN207261349U - A kind of automatic reciprocating air cylinder - Google Patents
A kind of automatic reciprocating air cylinder Download PDFInfo
- Publication number
- CN207261349U CN207261349U CN201721131336.7U CN201721131336U CN207261349U CN 207261349 U CN207261349 U CN 207261349U CN 201721131336 U CN201721131336 U CN 201721131336U CN 207261349 U CN207261349 U CN 207261349U
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- bulge loop
- convex block
- magnet
- protecgulum
- channel
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Abstract
The utility model discloses a kind of automatic reciprocating air cylinder,Including protecgulum,Cylinder barrel and rear cover,Protecgulum and rear cover are connected to cylinder barrel both ends,Piston and piston rod are equipped with cylinder barrel,Protecgulum is equipped with accommodating cavity,Piston rod is stretched into cylinder barrel from protecgulum accommodating cavity and is fixedly connected with the piston,Air valve stem is equipped with accommodating cavity,Air valve stem is equipped with venthole,Clamp spring is embedded with piston rod,Clamp spring both ends are respectively equipped with the first spring and second spring,Air valve stem is equipped with sealing bulge loop,Accommodating cavity wall is equipped with sealing convex block,Protecgulum is equipped with air inlet and gas outlet,Air inlet is connected with first passage and second channel,Second channel is connected with venthole,The third channel for connecting first passage with piston nose is additionally provided with protecgulum,Piston rod is equipped with the fourth lane for connecting venthole with piston rear end,The first magnet and the second magnet are additionally provided with protecgulum,First magnet and the second magnet are located at air valve stem both ends respectively.The utility model is simple in structure, easy to use.
Description
Technical field
Cylinder technical field is the utility model is related to, more particularly to a kind of automatic reciprocating air cylinder.
Background technology
With the development of industrialized production, pneumatic system has been widely applied in a variety of production and processing systems, pneumatic member
Part is to realize industrial automation, Labor-saving, remote-operated important foundation part.And cylinder is main in operating pneumatic system
Executive component, cylinder are the cylindrical metal parts for guiding piston to carry out straight reciprocating motion wherein.It is automatic the modern times
Have a wide range of applications in the work mechanism of change.It can perform the real time remote control for realizing some processes, reach unmanned behaviour
The purpose of work.In terms of current trend, in most of use occasion, operating pneumatic system is with its quick response, control is accurate, pacifies
Complete reliable performance.
But current cylinder is all by solenoid valve control air inlet, dies and then the reciprocating movement of control cylinder piston,
So that air cylinder structure is complicated.
The content of the invention
In view of the deficiencies of the prior art and defect, there is provided a kind of automatic reciprocating air cylinder easy to use simple in structure.
To achieve the above object, the utility model provides following technical scheme.
A kind of automatic reciprocating air cylinder, including protecgulum, cylinder barrel and rear cover, protecgulum and rear cover are connected to cylinder barrel both ends, cylinder
Be equipped with moveable piston and piston rod in cylinder, protecgulum is equipped with accommodating cavity, piston rod from protecgulum accommodating cavity stretch into cylinder barrel with work
Plug is fixedly connected, and is equipped with the air valve stem being sheathed on piston rod in accommodating cavity, and air valve stem is equipped with venthole, embedding on piston rod
Equipped with clamp spring, clamp spring both ends are respectively equipped with the first spring coordinated with air valve stem and second spring, and air valve stem is equipped with multiple close
Bulge loop is sealed, cavity wall is housed and is equipped with sealing the matched multiple sealing convex blocks of bulge loop, protecgulum is equipped with air inlet and outlet
Mouthful, air inlet is connected with first passage and second channel, and second channel is connected with venthole, is additionally provided with first passage on protecgulum
The third channel connected with piston nose, piston rod are equipped with the fourth lane that connects venthole with piston rear end, in protecgulum
The first magnet and the second magnet coordinated with air valve stem is additionally provided with, the first magnet and the second magnet are located at air valve stem both ends respectively.
Further, gas outlet is connected with muffler.
Further, rear cover is connected by screw thread with cylinder barrel, and sealing ring is equipped between rear cover and cylinder barrel, after cover and also set
Tighten hole.
Further, protecgulum both ends are respectively equipped with the cylinder barrel sealed screw and end face seal screw coordinated with piston rod, and
Cylinder barrel sealed screw and the first magnet offset so that the first magnet is fixed in protecgulum, and end face seal screw offsets with the second magnet
The second magnet is fixed in protecgulum.
Further, it is respectively equipped with sealing ring between cylinder barrel sealed screw and end face seal screw and piston rod.
Further, piston rod is fixedly connected with the piston by clamp nut.
Further, bulge loop is sealed including the first bulge loop, the second bulge loop, the 3rd bulge loop and the 4th bulge loop, venthole to be located at
Between first bulge loop and the second bulge loop, fourth lane and accommodating cavity junction are between the 3rd bulge loop and the 4th bulge loop, sealing
The first convex block that convex block includes coordinating with the first bulge loop, the second convex block coordinated with the second bulge loop, coordinate with the 3rd bulge loop the
Three convex blocks and the 4th convex block coordinated with the 4th bulge loop, when air valve stem is connected with the first magnet, the first bulge loop and the second convex block
Separation, the second bulge loop and the second convex block coordinate, and the 3rd bulge loop is separated with the second convex block, and the 4th bulge loop and the 4th convex block coordinate, the
One bulge loop and the second convex block separate so that second channel is connected with venthole, and the second bulge loop and the cooperation of the second convex block are so that second is logical
Blocked between road and third channel, the 4th bulge loop and the 4th convex block coordinate so that being blocked between first passage and fourth lane, gas
When valve rod is connected with the second magnet, the first bulge loop and the first convex block coordinate, and the second bulge loop is separated with the second convex block, the 3rd bulge loop and
3rd convex block coordinates, and the 4th bulge loop is separated with the 4th convex block, and the first bulge loop and the cooperation of the first convex block are so that second channel and ventilation
Blocked between hole, the 3rd bulge loop and the 3rd convex block coordinate so that being blocked between first passage and venthole, the 4th bulge loop and the 4th
Convex block is separated so that being connected between first passage and third channel.
The beneficial effects of the utility model are：The use of the new type is in use, inlet charge, air valve stem and the first magnetic at this time
Iron phase connects, and the first bulge loop and the separation of the second convex block, the second bulge loop and the second convex block coordinate, the 3rd bulge loop and the second convex block point
From, the 4th bulge loop and the 4th convex block coordinate, and the first bulge loop and the second convex block separate and second channel connected with venthole, and second
Bulge loop and the second convex block coordinate so that blocked between second channel and third channel, and the 4th bulge loop coordinates with the 4th convex block causes the
Blocked between one passage and fourth lane, gas can not enter third channel through first passage, and gas can only be through second channel, logical
Stomata enters fourth lane, and gas enters piston rear end through fourth lane again, so as to promote piston to move forward, piston reach, which drives, lives
Stopper rod moves forward, and piston rod reach drives the clamp spring reach on piston rod, and clamp spring reach promotes second spring reach, works as second spring
Move forward to when offseting with air valve stem front end, the magnetic force that second spring can promote air valve stem to overcome the first magnet at this time move forward until with
Second magnet is connected, and the gas of piston nose is discharged through third channel from exhaust outlet, when air valve stem is connected with the second magnet
When, the first bulge loop and the first convex block coordinate, and the second bulge loop is separated with the second convex block, and the 3rd bulge loop and the 3rd convex block coordinate, and the 4th
Bulge loop is separated with the 4th convex block, and the first bulge loop and the first convex block coordinate so that being blocked between second channel and venthole, and the 3rd is convex
Ring and the 3rd convex block coordinate so that being blocked between first passage and venthole, and the 4th bulge loop is separated with the 4th convex block so that first is logical
Connected between road and third channel.Gas can not enter fourth lane, first passage and the 3rd through second channel, venthole at this time
Connected between passage, gas enters third channel through first passage, and gas enters piston nose through third channel again, promotes piston
After move, move after shipper pole piston bar before and after piston, moved after the clamp spring after piston rod on shipper pole piston bar, clamp spring reach promotes the
Moved after one spring, when moved to after the first spring offset with air valve rod rear end when, the first spring can promote air valve stem to overcome at this time
Moved after the magnetic force of two magnet until be connected with the first magnet, the gas of piston rear end is through fourth lane, venthole from exhaust outlet
Discharge, so that piston automatically moves back and forth, it is simple in structure, it is easy to use.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is enlarged diagram at A in Fig. 1.
Fig. 3 is schematic diagram when air valve stem is connected with the second magnet.
Fig. 4 is enlarged diagram at B in Fig. 3.
Fig. 5 is the utility model gas outlet schematic diagram.
In figure, 1. cylinder barrels；2. protecgulum；3. rear cover；4. piston；5. piston rod；6. accommodating cavity；7. air valve stem；8. venthole；
9. clamp spring；10. the first spring；11. second spring；12. air inlet；13. gas outlet；14. first passage；15. second channel；
16. third channel；17. fourth lane；18. the first magnet；19. the second magnet；20. tighten hole；21. cylinder barrel sealed screw；22.
End face seal screw；23. clamp nut；24. the first bulge loop；25. the second bulge loop；26. the 3rd bulge loop；27. the 4th bulge loop；28.
First convex block；29. the second convex block；30. the 3rd convex block；31. the 4th convex block；32. muffler.
Embodiment
The utility model is further explained with reference to attached drawing.
Referring to a kind of automatic reciprocating air cylinder shown in Fig. 1 to Fig. 5, including protecgulum 2, cylinder barrel 1 and rear cover 3, protecgulum 2 and rear cover
3 are connected to 1 both ends of cylinder barrel, and rear cover 3 is connected by screw thread with cylinder barrel 1, and sealing ring is equipped between rear cover 3 and cylinder barrel 1, with
Ensure that leakproofness is good, be additionally provided with rear cover 3 and tighten hole 20, easy to fixed rear cover 3 and cylinder barrel 1.It is equipped with cylinder barrel 1 moveable
5 bar of piston rod 5 and piston rod, 5 bar of piston rod are fixedly connected by clamp nut 23 with piston rod 5, and protecgulum 2 is equipped with accommodating cavity 6,
5 bar of piston rod is stretched into cylinder barrel 1 from 2 accommodating cavity 6 of protecgulum and is fixedly connected with piston rod 5, is equipped with accommodating cavity 6 and is sheathed on piston rod
Air valve stem 7 on 5 bars, the first magnet 18 and the second magnet 19 coordinated with air valve stem 7, the first magnet 18 are additionally provided with protecgulum 2
It is located at 7 both ends of air valve stem respectively with the second magnet 19.2 both ends of protecgulum are respectively equipped with the cylinder barrel coordinated with 5 bar of piston rod and seal spiral shell
Silk 21 and end face seal screw 22, and 21 and first magnet 18 of cylinder barrel sealed screw offsets so that the first magnet 18 is fixed on protecgulum
In 2,22 and second magnet 19 of end face seal screw offsets so that the second magnet 19 is fixed in protecgulum 2, cylinder barrel sealed screw 21
Sealing ring is respectively equipped between 5 bar of end face seal screw 22 and piston rod, to ensure that hermetic seal is good.
Air valve stem 7 is equipped with venthole 8, and clamp spring 9 is embedded with 5 bar of piston rod, and 9 both ends of clamp spring are respectively equipped with and air valve stem
7 coordinate the first springs 10 and second spring 11,7 both ends of air valve stem be equipped with respectively inwards flanging, flanging and the first spring 10 and
Second spring 11 is engaged, and air valve stem 7 is equipped with multiple sealing bulge loops, and 6 inner wall of accommodating cavity is equipped with to be engaged with sealing bulge loop
Multiple sealing convex blocks, protecgulum 2 is equipped with air inlet 12 and gas outlet 13, and gas outlet 13 is connected with muffler 32, with the row of reduction
Gas noise.Air inlet 12 is connected with first passage 14 and second channel 15, and second channel 15 is connected with venthole 8, on protecgulum 2 also
Equipped with the third channel 16 for connecting first passage 14 with 5 front end of piston rod, 5 bar of piston rod is equipped with venthole 8 and piston
The fourth lane 17 of 5 rear end of bar connection, the first magnet 18 and the second magnet 19 coordinated with air valve stem 7 is additionally provided with protecgulum 2, the
One magnet 18 and the second magnet 19 are located at 7 both ends of air valve stem respectively.
Sealing bulge loop includes the first bulge loop 24, the second bulge loop 25, the 3rd bulge loop 26 and the 4th bulge loop 27, venthole 8 and is located at
Between first bulge loop 24 and the second bulge loop 25, fourth lane 17 is located at the 3rd bulge loop 26 and the 4th bulge loop with 6 junction of accommodating cavity
Between 27, second convex block 29 of the sealing convex block including the first convex block 28 coordinated with the first bulge loop 24 and the cooperation of the second bulge loop 25,
The 3rd convex block 30 coordinated with the 3rd bulge loop 26 and the 4th convex block 31 coordinated with the 4th bulge loop 27,7 and first magnetic of air valve stem
When iron 18 connects, the first bulge loop 24 and the second convex block 29 separate, and the second bulge loop 25 coordinates with the second convex block 29, the 3rd bulge loop 26 and
Second convex block 29 separates, and the 4th bulge loop 27 coordinates with the 4th convex block 31, and the first bulge loop 24 and the second convex block 29 are separated so that second
Passage 15 is connected with venthole 8, and the second bulge loop 25 and the second convex block 29 coordinate so that between second channel 15 and third channel 16
Closure, the 4th bulge loop 27 and the 4th convex block 31 coordinate so that blocked between first passage 14 and fourth lane 17, air valve stem 7 and the
When two magnet 19 connect, the first bulge loop 24 coordinates with the first convex block 28, and the second bulge loop 25 is separated with the second convex block 29, the 3rd bulge loop
26 coordinate with the 3rd convex block 30, and the 4th bulge loop 27 is separated with the 4th convex block 31, and the first bulge loop 24 and the cooperation of the first convex block 28 cause
Blocked between second channel 15 and venthole 8, the 3rd bulge loop 26 and the cooperation of the 3rd convex block 30 are so that first passage 14 and venthole 8
Between block, the 4th bulge loop 27 is separated with the 4th convex block 31 so that being connected between first passage 14 and third channel 16.
The use of the new type is in use, 12 air inlet of air inlet, and air valve stem 7 is connected with the first magnet 18 at this time, the first bulge loop
24 and second convex block 29 separate, the second bulge loop 25 coordinates with the second convex block 29, and the 3rd bulge loop 26 is separated with the second convex block 29, the 4th
Bulge loop 27 coordinates with the 4th convex block 31, and the first bulge loop 24 and the second convex block 29 separate and second channel 15 connected with venthole 8,
Second bulge loop 25 and the second convex block 29 coordinate so that being blocked between second channel 15 and third channel 16, the 4th bulge loop 27 and the 4th
Convex block 31 coordinates so that being blocked between first passage 14 and fourth lane 17, and gas can not enter third channel through first passage 14
16, gas can only enter fourth lane 17 through second channel 15, venthole 8, and gas is again after fourth lane 17 enters piston rod 5
End, so as to promote piston rod 5 to move forward, the reach of piston rod 5 drives the reach of 5 bar of piston rod, and the reach of 5 bar of piston rod drives piston rod 5
Clamp spring 9 on bar moves forward, and the reach of clamp spring 9 promotes second spring 11 to move forward, when second spring 11 moves forward to and 7 front end phase of air valve stem
To when, the magnetic force that second spring 11 can promote air valve stem 7 to overcome the first magnet 18 at this time moves forward until be connected with the second magnet 19
Connecing, the gas of 5 front end of piston rod is discharged through third channel 16 from exhaust outlet, when air valve stem 7 is connected with the second magnet 19, the
One bulge loop 24 coordinates with the first convex block 28, and the second bulge loop 25 is separated with the second convex block 29, and the 3rd bulge loop 26 is matched somebody with somebody with the 3rd convex block 30
Close, the 4th bulge loop 27 is separated with the 4th convex block 31, and the first bulge loop 24 and the cooperation of the first convex block 28 are so that second channel 15 and ventilation
Blocked between hole 8, the 3rd bulge loop 26 and the 3rd convex block 30 coordinate so that being blocked between first passage 14 and venthole 8, and the 4th is convex
Ring 27 is separated with the 4th convex block 31 so that being connected between first passage 14 and third channel 16.Gas can not be through second channel at this time
15th, venthole 8 enters fourth lane 17, is connected between first passage 14 and third channel 16, gas enters through first passage 14
Third channel 16, gas enter 5 front end of piston rod through third channel 16 again, are moved after promoting piston rod 5, shipper pole before and after piston rod 5
Move after 5 bar of piston bar, moved after the clamp spring 9 after 5 bar of piston rod on 5 bar of shipper pole piston bar, the reach of clamp spring 9 promotes the first spring
Moved after 10, when moved to after the first spring 10 offset with 7 rear end of air valve stem when, the first spring 10 can promote air valve stem 7 to overcome at this time
Moved after the magnetic force of second magnet 19 until being connected with the first magnet 18, the gas of 5 rear end of piston rod is through fourth lane 17, ventilation
Hole 8 is discharged from exhaust outlet, so that piston rod 5 automatically moves back and forth, it is simple in structure without practical solenoid valve control, use
It is convenient, by controlling the size of intake pressure, so as to the translational speed of control piston bar 5.
The above is only the better embodiment of the utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (7)
1. a kind of automatic reciprocating air cylinder, including protecgulum（2）, cylinder barrel (1) and rear cover（3）, protecgulum（2）And rear cover（3）Connect respectively
In cylinder barrel (1) both ends, moveable piston is equipped with cylinder barrel (1)（4）And piston rod（5）, it is characterised in that：Protecgulum（2）It is equipped with
Accommodating cavity（6）, piston rod（5）From protecgulum（2）Accommodating cavity（6）Stretch into cylinder barrel (1) and piston（4）It is fixedly connected, accommodating cavity（6）
Interior be equipped with is sheathed on piston rod（5）On air valve stem（7）, air valve stem（7）It is equipped with venthole（8）, piston rod（5）On be embedded
There is clamp spring（9）, clamp spring（9）Both ends are respectively equipped with and air valve stem（7）The first spring coordinated（10）And second spring（11）, air valve
Bar（7）It is equipped with multiple sealing bulge loops, accommodating cavity（6）Inner wall is equipped with sealing the matched multiple sealing convex blocks of bulge loop, preceding
Lid（2）It is equipped with air inlet（12）And gas outlet（13）, air inlet（12）It is connected with first passage（14）And second channel（15）,
Second channel（15）With venthole（8）Connection, protecgulum（2）On be additionally provided with first passage（14）With piston（4）Front end connection
Third channel（16）, piston rod（5）It is equipped with venthole（8）With piston（4）The fourth lane of rear end connection（17）, protecgulum
（2）Inside it is additionally provided with and air valve stem（7）The first magnet coordinated（18）With the second magnet（19）, the first magnet（18）With the second magnet
（19）It is located at air valve stem respectively（7）Both ends.
A kind of 2. automatic reciprocating air cylinder according to claim 1, it is characterised in that：Gas outlet（13）It is connected with muffler
（32）.
A kind of 3. automatic reciprocating air cylinder according to claim 1, it is characterised in that：Rear cover（3）Pass through screw thread and cylinder barrel (1)
Connection, and rear cover（3）Sealing ring, rear cover are equipped between cylinder barrel (1)（3）On be additionally provided with and tighten hole（20）.
A kind of 4. automatic reciprocating air cylinder according to claim 1, it is characterised in that：Protecgulum（2）Both ends are respectively equipped with living
Stopper rod（5）The cylinder barrel sealed screw of cooperation（21）With end face seal screw（22）, and cylinder barrel sealed screw（21）With the first magnet
（18）Offset with by the first magnet（18）It is fixed on protecgulum（2）It is interior, end face seal screw（22）With the second magnet（19）Offset with
By the second magnet（19）It is fixed on protecgulum（2）It is interior.
A kind of 5. automatic reciprocating air cylinder according to claim 4, it is characterised in that：Cylinder barrel sealed screw（21）It is close with end face
Seal screw（22）With piston rod（5）Between be respectively equipped with sealing ring.
A kind of 6. automatic reciprocating air cylinder according to claim 1, it is characterised in that：Piston rod（5）Pass through clamp nut
（23）With piston（4）It is fixedly connected.
A kind of 7. automatic reciprocating air cylinder according to claim 1, it is characterised in that：Sealing bulge loop includes the first bulge loop
（24）, the second bulge loop（25）, the 3rd bulge loop（26）With the 4th bulge loop（27）, venthole（8）Positioned at the first bulge loop（24）With second
Bulge loop（25）Between, fourth lane（17）With accommodating cavity（6）Junction is located at the 3rd bulge loop（26）With the 4th bulge loop（27）Between,
Sealing convex block includes and the first bulge loop（24）The first convex block coordinated（28）And the second bulge loop（25）The second convex block coordinated
（29）And the 3rd bulge loop（26）The 3rd convex block coordinated（30）And with the 4th bulge loop（27）The 4th convex block coordinated（31）, gas
Valve rod（7）With the first magnet（18）During connection, the first bulge loop（24）With the second convex block（29）Separation, the second bulge loop（25）With second
Convex block（29）Coordinate, the 3rd bulge loop（26）With the second convex block（29）Separation, the 4th bulge loop（27）With the 4th convex block（31）Coordinate, the
One bulge loop（24）With the second convex block（29）Separation is so that second channel（15）With venthole（8）Connection, the second bulge loop（25）With
Two convex blocks（29）Coordinate so that second channel（15）With third channel（16）Between block, the 4th bulge loop（27）With the 4th convex block
（31）Coordinate so that first passage（14）With fourth lane（17）Between block, air valve stem（7）With the second magnet（19）During connection,
First bulge loop（24）With the first convex block（28）Coordinate, the second bulge loop（25）With the second convex block（29）Separation, the 3rd bulge loop（26）With
3rd convex block（30）Coordinate, the 4th bulge loop（27）With the 4th convex block（31）Separation, the first bulge loop（24）With the first convex block（28）Match somebody with somebody
Close so that second channel（15）With venthole（8）Between block, the 3rd bulge loop（26）With the 3rd convex block（30）Coordinate so that first
Passage（14）With venthole（8）Between block, the 4th bulge loop（27）With the 4th convex block（31）Separation is so that first passage（14）With
Third channel（16）Between connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131336.7U CN207261349U (en) | 2017-09-05 | 2017-09-05 | A kind of automatic reciprocating air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131336.7U CN207261349U (en) | 2017-09-05 | 2017-09-05 | A kind of automatic reciprocating air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261349U true CN207261349U (en) | 2018-04-20 |
Family
ID=61924074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721131336.7U Active CN207261349U (en) | 2017-09-05 | 2017-09-05 | A kind of automatic reciprocating air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261349U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524656A (en) * | 2017-09-05 | 2017-12-29 | 宁波圣菲机械制造有限公司 | A kind of automatic reciprocating air cylinder |
| CN108925109A (en) * | 2018-07-17 | 2018-11-30 | 安徽致精机电科技有限公司 | A kind of electromechanical equipment cooling device |
-
2017
- 2017-09-05 CN CN201721131336.7U patent/CN207261349U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524656A (en) * | 2017-09-05 | 2017-12-29 | 宁波圣菲机械制造有限公司 | A kind of automatic reciprocating air cylinder |
| CN107524656B (en) * | 2017-09-05 | 2024-03-26 | 宁波圣菲机械制造有限公司 | Automatic reciprocating cylinder |
| CN108925109A (en) * | 2018-07-17 | 2018-11-30 | 安徽致精机电科技有限公司 | A kind of electromechanical equipment cooling device |
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Effective date of registration: 20180802 Address after: 315500 No. 1, Xiwang South Road, Xikou Town, Fenghua District, Ningbo, Zhejiang Patentee after: Ningbo Yu Heng Energy Technology Co., Ltd. Address before: 315500 No. 1, Xiwang South Road, Xikou Town, Fenghua District, Ningbo, Zhejiang Patentee before: Ningbo Precise Machinery Co., Ltd. |