CN105889506B - A kind of adjustable double-canopy body compression type pressure vessel - Google Patents
A kind of adjustable double-canopy body compression type pressure vessel Download PDFInfo
- Publication number
- CN105889506B CN105889506B CN201610324329.2A CN201610324329A CN105889506B CN 105889506 B CN105889506 B CN 105889506B CN 201610324329 A CN201610324329 A CN 201610324329A CN 105889506 B CN105889506 B CN 105889506B
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- China
- Prior art keywords
- installing plate
- pressure vessel
- cover
- arc pressuring
- hydraulic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/16—Pivoted closures
- F16J13/18—Pivoted closures pivoted directly on the frame
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Press Drives And Press Lines (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The present invention discloses a kind of adjustable double-canopy body compression type pressure vessel, including the mobile support of tank body, the cover on tank body, adjustment height and the adjustable pressing device on mobile support；Described cover and the junction of tank body are respectively arranged with annulus installing plate and lower annulus installing plate；And hydraulic port is additionally provided with the cover, dismountable hydraulic cover is provided with described hydraulic port.Pressing device in the present invention is mounted on mobile support, and mobile support can drive pressing device to move, therefore the pressing device is not limited solely on a pressure vessel, can also be moved and be compressed other pressure vessel；But also the position of arc pressuring plate can be adjusted by mobile support, make the compacted position of arc pressuring plate more accurate.
Description
Technical field
The present invention relates to a kind of press device, specifically a kind of adjustable double-canopy body compression type pressure vessel.
Background technology
Pressure vessels are used for filling gas or liquid, it is necessary to can bear larger pressure, Pressure vessels
It is made up of tank body and cover, hydraulic port or air pressure mouth is provided with cover, for feed liquor (air inlet) or goes out liquid (outlet), by
In having to bear larger pressure, generally use ring flange is fixedly connected between cover and tank body, is passed through under normal circumstances
Bolt is installed or be hinged installation, needs demounting bolt and dismounting articulated mounting when needing and opening cover, open and
Cover all unusual trouble；And only two panels ring flange is bolted installation for common flangeseal installation, its is close
It is bad to seal effect, not only installing/dismounting is opened inconvenient, and tightness is not strong.
The content of the invention
The purpose of the present invention is that good sealing effect is stood in view of the deficienciess of the prior art, providing a kind of convenient disassembly
Formula pressure vessel, its technical scheme are as follows：
A kind of adjustable double-canopy body compression type pressure vessel, including tank body, the cover on tank body, adjustment height
Mobile support and the adjustable pressing device on mobile support；Described cover and the junction of tank body are respectively arranged with
Upper annulus installing plate and lower annulus installing plate；And hydraulic port is additionally provided with the cover, being provided with described hydraulic port can
The hydraulic cover of dismounting；Closure lid in the middle part of described hydraulic cover is arranged to two pieces of door closures being hinged with hydraulic cover edge upper part；
Two door closures, which are used cooperatively, covers hydraulic port, and the vertical cross-section of two door closure hinged ends is trapezoid cross section wide at the top and narrow at the bottom,
And the other end of two door closures is then contoured to correspond to the hypotenuse end with hypotenuse structure, two hypotenuse ends one of them upper,
Another can coordinate compression to cover hydraulic port under；And it is additionally provided with locking device on described door closure.
The upper end of described mobile support is provided with lifter plate；Described pressing device includes being arranged on lifter plate
Hydraulic unit driver, the transverse sleeves installed in the piston rod end of hydraulic unit driver, the adjustable length in transverse sleeves
Loop bar, installed in set boom end montant and three pieces of arc pressuring plates；The piston rod of described hydraulic unit driver is set straight down
Put, the loop bar in described transverse sleeves and transverse sleeves is provided with three sets, the horizontal peace of the transverse sleeves angle bisecting
On the piston rod of hydraulic unit driver, and the setting height(from bottom) of three transverse sleeves is identical, and described montant is provided with three altogether,
Three's length is identical, is vertically installed at the end of three loop bars respectively, and three pieces of arc pressuring plates are then horizontally arranged at three respectively
The bottom of montant, and three pieces of arc pressuring plate installation sites are corresponding, can be by forming an overall annulus after shrinking loop bar；It is described
Three pieces of arc pressuring plates be arranged on cover upper annulus installing plate top, and can be pressed in the presence of hydraulic unit driver
On upper annulus installing plate, annulus installing plate is set to be pressed on lower annulus installing plate.
Further, it is all provided between the upper annulus installing plate and lower annulus installing plate and on the hypotenuse end of two door closures
It is equipped with rubber seal.
Further, in order that door closure has a preferable strong point, the trapezoidal side of the trapezoid cross section of the door closure hinged end with
Angle between horizontal line is 45 °；And in order that door closure can be covered smoothly, and increase sealing effectiveness, the door closure other end
Angle between the hypotenuse and horizontal line of hypotenuse end is 45 °；
Further, the upper surface of described upper annulus installing plate is additionally provided with a circle pressing groove；Three pieces of described arcs
It is pressed into when pressing plate pushes into pressing groove.
Further, the edge of described upper annulus installing plate is additionally provided with a circle vertical raised limited block downwards；
Described lower annulus installing plate is stuck in limited block when installing.
Further, it is additionally provided with rubber seal in described limited block.
Further, the montant is arranged on the middle position of arc pressuring plate；Because arc pressuring plate itself has gravity,
In order to prevent arc pressuring plate from can produce inclination because of self gravitation, therefore montant is arranged on the center position of arc pressuring plate.
Further, it is additionally provided with clamping screw in described transverse sleeves；Horizontal set can be adjusted by clamping screw
The length of loop bar in cylinder, therefore the position of arc pressuring plate can also be adjusted.
Beneficial effect：The invention has the advantages that：
(1) connected mode in the present invention between cover and tank body is compression type, the hydraulic-driven dress on mobile support
Put and arc pressuring plate is installed by the cross bar and montant of setting, drive arc pressuring plate to compress upper annulus downwards by fluid pressure drive device
Installing plate, annulus installing plate is set closely to be pressed on arc lower pressing plate, very convenient, Er Qieyao when so installation
As long as fluid pressure drive device is set up to pull back arc pressuring plate when opening cover；And the edge of upper annulus installing plate
It is additionally provided with a circle to be stuck in limited block when vertical raised limited block descends annulus installing plate to install downwards, limited block was both limited
The effect of position positioning, can increase its sealing property, after being compressed by fluid pressure drive device, add anti-impact force again again；
(2) pressing device in the present invention is mounted on mobile support, and mobile support can drive pressing device to move
It is dynamic, therefore the pressing device is not limited solely on a pressure vessel, can also be moved and be compressed other pressure vessel；And
The position of arc pressuring plate can also be adjusted by mobile support, make the compacted position of arc pressuring plate more accurate；
(3) arc pressuring plate in the present invention is to be arranged on by montant on loop bar, and loop bar is arranged in transverse sleeves
And the length of adjustable loop bar, therefore the horizontal level of arc pressuring plate can be adjusted by adjusting the length of horizontal loop bar, lead to
Crossing contraction loop bar can make arc pressuring plate be shrunk to an overall annulus, can also increase the pressure of arc pressuring plate by extending loop bar
Tight radius, therefore the set pressing device can be used for compressing other various sizes of covers, increase its scope of application, be not limited to
A kind of cover of size compresses, and coordinates mobile the mobile of support to use enhanced convenience；
(4) present invention is provided with the door closure of two pieces of radial types on the basis of hydraulic cover is original；Using hydraulic port feed liquor
Or when going out liquid, it is possible to directly open door closure to be operated, and without again integrally removing hydraulic cover；And two
The vertical cross-section of lid hinged end is trapezoid cross section wide at the top and narrow at the bottom, and the other end of two door closures is then contoured to correspond to carry hypotenuse knot
The hypotenuse end of structure；There is a support trapezoid cross section wide at the top and narrow at the bottom when can covering door closure, and hypotenuse end one is upper,
One can coordinate compression under, and in the case of increasing seal and stability, and can is enough easy to use.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the installation top view of arc pressuring plate in the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, and the present embodiment is with technical solution of the present invention
Premised under implemented, it should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.
As depicted in figs. 1 and 2, a kind of adjustable double-canopy body compression type pressure vessel, including tank body 1, on tank body 1
Cover 2, adjustment height mobile support 3 and the adjustable pressing device on mobile support 3；The described He of cover 2
The junction of tank body 1 is respectively arranged with annulus installing plate 4 and lower annulus installing plate 5；And it is additionally provided with hydraulic pressure on the cover 2
Mouthfuls 6, dismountable hydraulic cover 7 is provided with described hydraulic port 6；The closure lid at the described middle part of hydraulic cover 7 is arranged to two
The door closure 8 that block is hinged with the edge upper part of hydraulic cover 7；Two door closures 8, which are used cooperatively, covers hydraulic port 6, and two door closures 8 are be hinged
The vertical cross-section at end is trapezoid cross section wide at the top and narrow at the bottom, and the other end of two door closures 8 is then contoured to correspond to hypotenuse structure
Hypotenuse end, two hypotenuse ends one of them upper, another can coordinate compression to cover hydraulic port 6 under；And institute
Locking device 801 is additionally provided with the door closure 8 stated；Can be by the lock sealing of door closure 8 by locking device 801.
The upper end of mobile support 3 is provided with lifter plate 9；Described pressing device includes the liquid being arranged on lifter plate 9
Press the driver 10, transverse sleeves 11 installed in the piston rod end of hydraulic unit driver 10, adjustable in transverse sleeves 11
Save loop bar 12, the montant 13 installed in the end of loop bar 12 and the three pieces of arc pressuring plates 14 of length；Described hydraulic unit driver 10
Piston rod is set straight down, and the loop bar 12 in described transverse sleeves 11 and transverse sleeves 11 is provided with three sets, the horizontal stroke
To being transversely mounted on the piston rod of hydraulic unit driver 10 for the angle bisecting of sleeve 11, and the setting height(from bottom) of three transverse sleeves 11
Identical, described montant 13 is provided with three altogether, and three's length is identical, is vertically installed at the end of three loop bars 12 respectively, and
Three pieces of arc pressuring plates 14 are then horizontally arranged at the bottom of three montants 13, and three pieces of installation sites pair of arc pressuring plate 14 respectively
Should, can be by forming an overall annulus after shrinking loop bar 12；Three pieces of described arc pressuring plates 14 are arranged on the upper annulus of cover 2
The top of installing plate 4, and can be pressed in the presence of hydraulic unit driver 10 on annulus installing plate 4, annulus is installed
Plate 4 is pressed on lower annulus installing plate 5.
It is close that rubber is provided between upper annulus installing plate 4 and lower annulus installing plate 5 and on the hypotenuse end of two door closures 8
Seal 15；The part of rubber gasket 15 plays a part of buffering, and a part plays a part of sealing.
The upper surface of upper annulus installing plate 4 is additionally provided with a circle pressing groove 16；What three pieces of described arc pressuring plates 14 pushed
When be pressed into pressing groove 16；Pressing groove 16 must be arranged to a coil structures, and such arc pressuring plate 14 can be fine
Press-in into pressing groove 16, have and be easy to positioning and the characteristics of can smoothly be pressed into.
Angle between the trapezoidal side and horizontal line of the trapezoid cross section of the hinged end of door closure 8 is 45 °, and the hypotenuse end of the other end
Angle between the hypotenuse and horizontal line in portion is 45 °.
The edge of upper annulus installing plate 4 is additionally provided with a circle vertical raised limited block 17 downwards；Described lower annulus
Installing plate 5 is stuck in limited block 17 when installing；And it is additionally provided with rubber seal in limited block 17.
In order to prevent that arc pressuring plate 14 because self gravitation causes inclination to be unfavorable for being pressed into pressing groove 16 install by montant 13
In the middle position of arc pressuring plate 14.
Clamping screw 18 is additionally provided with transverse sleeves 11；It can be adjusted in transverse sleeves 11 by adjusting clamping screw 18
The extension elongation of loop bar 12, so as to adjust the position of arc pressuring plate 14.
Connected mode in the present invention between cover and tank body is compression type, and the fluid pressure drive device on mobile support leads to
The cross bar set and montant installation arc pressuring plate are crossed, drives arc pressuring plate to compress upper annulus downwards by fluid pressure drive device and installs
Plate, annulus installing plate is set closely to be pressed on arc lower pressing plate, it is very convenient when so installation, and to open
As long as fluid pressure drive device is set up to pull back arc pressuring plate when cover；And the edge of upper annulus installing plate is also set
It is equipped with a circle to be stuck in limited block when vertical raised limited block descends annulus installing plate to install downwards, limited block both determine by limited location
The effect of position, can increase its sealing property, after being compressed by fluid pressure drive device, add anti-impact force again again.
Pressing device in the present invention is mounted on mobile support, and mobile support can drive pressing device to move,
Therefore the pressing device is not limited solely on a pressure vessel, can also be moved and be compressed other pressure vessel；But also
The position of arc pressuring plate can be adjusted by mobile support, make the compacted position of arc pressuring plate more accurate.
Arc pressuring plate in the present invention be by montant be arranged on loop bar on, and loop bar be arranged on transverse sleeves on and
The length of adjustable loop bar, therefore the horizontal level of arc pressuring plate can be adjusted by adjusting the length of horizontal loop bar, pass through receipts
Contracting loop bar can make arc pressuring plate be shrunk to an overall annulus, can also increase the compression half of arc pressuring plate by extending loop bar
Footpath, therefore the set pressing device can be used for compressing other various sizes of covers, increase its scope of application, be not limited to one kind
The cover of size compresses, and coordinates mobile the mobile of support to use enhanced convenience.
The present invention is provided with the door closure of two pieces of radial types on the basis of hydraulic cover is original；Using hydraulic port feed liquor or
When going out liquid, it is possible to directly open door closure to be operated, and without again integrally removing hydraulic cover；And two door closure hinge
The vertical cross-section for connecing end is trapezoid cross section wide at the top and narrow at the bottom, and the other end of two door closures is then contoured to correspond to hypotenuse structure
Hypotenuse end；There is a support trapezoid cross section wide at the top and narrow at the bottom when can covering door closure, and hypotenuse end one is upper, one
Compression can be coordinated under, in the case of increasing seal and stability, and can is enough easy to use.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
- A kind of 1. adjustable double-canopy body compression type pressure vessel, it is characterised in that：Including tank body (1), on tank body (1) Cover (2), the mobile support (3) of adjustment height and the adjustable pressing device on mobile support (3)；Described cover (2) and the junction of tank body (1) is respectively arranged with annulus installing plate (4) and lower annulus installing plate (5)；And the cover (2) On be additionally provided with hydraulic port (6), dismountable hydraulic cover (7) is provided with described hydraulic port (6)；Described hydraulic cover (7) The closure lid at middle part is arranged to two pieces of door closures (8) being hinged with hydraulic cover (7) edge upper part；Two door closures (8) are used cooperatively Hydraulic port (6) is covered, and the vertical cross-section of two door closures (8) hinged end is trapezoid cross section wide at the top and narrow at the bottom, and two door closures (8) The other end be then contoured to correspond to the hypotenuse end with hypotenuse structure, two hypotenuse ends one of them upper, another Under can coordinate compression hydraulic port (6) is covered；And it is additionally provided with locking device (801) on described door closure (8)；The upper end of described mobile support (3) is provided with lifter plate (9)；Described pressing device includes being arranged on lifter plate (9) hydraulic unit driver (10) on, the transverse sleeves (11) installed in the piston rod end of hydraulic unit driver (10), installed in horizontal stroke Loop bar (12) to sleeve (11) interior adjustable length, montant (13) and three pieces of arc pressuring plates installed in loop bar (12) end (14)；The piston rod of described hydraulic unit driver (10) is set straight down, described transverse sleeves (11) and transverse sleeves (11) loop bar (12) in is provided with three sets, and transverse sleeves (11) angle bisecting is transversely mounted on hydraulic unit driver (10) on piston rod, and the setting height(from bottom) of three transverse sleeves (11) is identical, and described montant (13) is provided with three altogether, and three Person's length is identical, is vertically installed at the end of three loop bars (12) respectively, and three pieces of arc pressuring plates (14) are then horizontally mounted respectively In the bottom of three montants (13), and three pieces of arc pressuring plate (14) installation sites are corresponding, can be by shrinking loop bar (12) structure afterwards Into an overall annulus；Three pieces of described arc pressuring plates (14) are arranged on the top of the upper annulus installing plate (4) of cover (2), and And can be pressed in the presence of hydraulic unit driver (10) on upper annulus installing plate (4), it is pressed on down annulus installing plate (4) On annulus installing plate (5).
- 2. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 1, it is characterised in that：The upper annulus Rubber seal is provided between installing plate (4) and lower annulus installing plate (5) and on the hypotenuse end of two door closures (8) (15)。
- 3. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 1, it is characterised in that：The door closure (8) angle between the trapezoidal side of the trapezoid cross section of hinged end and horizontal line is 45 °, and the hypotenuse of the hypotenuse end of the other end with Angle between horizontal line is 45 °.
- 4. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 1, it is characterised in that：Described upper circle The upper surface of ring installing plate (4) is additionally provided with a circle pressing groove (16)；Three pieces of described arc pressuring plates (14) are pressed when pushing Enter into pressing groove (16).
- 5. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 1, it is characterised in that：Described upper circle The edge of ring installing plate (4) is additionally provided with a circle vertical raised limited block (17) downwards；Described lower annulus installing plate (5) It is stuck in during installation in limited block (17).
- 6. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 5, it is characterised in that：Described is spacing Rubber seal is additionally provided with block (17).
- 7. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 1, it is characterised in that：The montant (13) it is arranged on the middle position of arc pressuring plate (14).
- 8. the adjustable double-canopy body compression type pressure vessel of one kind according to claim 1, it is characterised in that：Described transverse direction Clamping screw (18) is additionally provided with sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324329.2A CN105889506B (en) | 2016-05-16 | 2016-05-16 | A kind of adjustable double-canopy body compression type pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324329.2A CN105889506B (en) | 2016-05-16 | 2016-05-16 | A kind of adjustable double-canopy body compression type pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105889506A CN105889506A (en) | 2016-08-24 |
| CN105889506B true CN105889506B (en) | 2018-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610324329.2A Active CN105889506B (en) | 2016-05-16 | 2016-05-16 | A kind of adjustable double-canopy body compression type pressure vessel |
Country Status (1)
| Country | Link |
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| CN (1) | CN105889506B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169026B (en) * | 2017-11-29 | 2020-06-16 | 西安航天动力机械有限公司 | A inspection frock for high-pressure vessel hydraulic pressure test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2543731A1 (en) * | 1975-10-01 | 1977-04-14 | Ernst Huebers | Rapid action clamp for pressure vessel end covers - has clamping load exerted by number of hydraulic cylinders operating on peripheral flange |
| CN2769626Y (en) * | 2004-10-22 | 2006-04-05 | 陈青环 | Safety fast opening door device for pressure container |
| CN201934652U (en) * | 2010-12-24 | 2011-08-17 | 中国核动力研究设计院 | High-accuracy and high-pressure tank cover |
| CN103206538A (en) * | 2013-04-23 | 2013-07-17 | 重庆恒泰线缆（集团）有限公司 | Pressure container cover sealing device |
| CN103742644A (en) * | 2013-11-20 | 2014-04-23 | 浙江东瓯过滤机制造有限公司 | Safety linkage locking device for quick valve of pressure vessel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467218A (en) * | 1977-11-08 | 1979-05-30 | Kayaba Ind Co Ltd | Cover fastening device for pressure tank |
| JPS567152U (en) * | 1979-06-28 | 1981-01-22 |
-
2016
- 2016-05-16 CN CN201610324329.2A patent/CN105889506B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2543731A1 (en) * | 1975-10-01 | 1977-04-14 | Ernst Huebers | Rapid action clamp for pressure vessel end covers - has clamping load exerted by number of hydraulic cylinders operating on peripheral flange |
| CN2769626Y (en) * | 2004-10-22 | 2006-04-05 | 陈青环 | Safety fast opening door device for pressure container |
| CN201934652U (en) * | 2010-12-24 | 2011-08-17 | 中国核动力研究设计院 | High-accuracy and high-pressure tank cover |
| CN103206538A (en) * | 2013-04-23 | 2013-07-17 | 重庆恒泰线缆（集团）有限公司 | Pressure container cover sealing device |
| CN103742644A (en) * | 2013-11-20 | 2014-04-23 | 浙江东瓯过滤机制造有限公司 | Safety linkage locking device for quick valve of pressure vessel |
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| Publication number | Publication date |
|---|---|
| CN105889506A (en) | 2016-08-24 |
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Effective date of registration: 20211217 Address after: Room 503, building 3, No. 133, development avenue, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: ZHEJIANG MAIZHI NETWORK TECHNOLOGY CO.,LTD. Address before: No.6, white rabbit Industrial Park, Jurong City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU JIUWEI HIGH PRESSURE VESSEL MANUFACTURE Co.,Ltd. |
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Effective date of registration: 20230103 Address after: 314500 Room 635-708, Fengrun International Business Center, Zhenxing East Road, wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: JIAXING LONGLIE ELECTRONIC COMMERCE Co.,Ltd. Address before: Room 503, building 3, No. 133, development avenue, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG MAIZHI NETWORK TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20230717 Address after: 271000 Southeast of Yingjia Road, Dawenkou Industrial Park, Daiyue District, Tai'an City, Shandong Province, south of Liujie Patentee after: Yuantong Heavy Industry Group Co.,Ltd. Address before: 314500 Room 635-708, Fengrun International Business Center, Zhenxing East Road, wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: JIAXING LONGLIE ELECTRONIC COMMERCE Co.,Ltd. |