CN107425467B - A kind of multi-functional power construction is mechanical - Google Patents
A kind of multi-functional power construction is mechanical Download PDFInfo
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- CN107425467B CN107425467B CN201710473920.9A CN201710473920A CN107425467B CN 107425467 B CN107425467 B CN 107425467B CN 201710473920 A CN201710473920 A CN 201710473920A CN 107425467 B CN107425467 B CN 107425467B
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- seat
- lifting seat
- shaped lifting
- winding
- guide rod
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
The present invention relates to power construction field of mechanical technique, in particular to a kind of multi-functional power construction is mechanical, is provided with guide rod fixing seat on each lateral wall of U-shaped bottom seat；The top of guide rod fixing seat is fixedly installed guide rod；Each guide rod is inserted into corresponding guide sleeve from the bottom up respectively；Oil cylinder one end is mutually fixedly connected with the top surface of U-shaped bottom seat；The oil cylinder other end is mutually fixedly connected with the bottom surface of U-shaped lifting seat；The left and right two-arm of U-shaped lifting seat is provided with telescope support.In using the present invention, it is inserted into behind the aperture of the telescope support alignment cable volume two sides of the left and right sides, then oil cylinder drives, and makes U-shaped lifting seat along guide rod upward sliding one end distance, cable volume is made to be lifted away from ground；With structure is unreeled on telescope support, unreel cable volume；The structure equipment included lifting and unreeled, cable volume is lifted automatically and blowing, improves construction efficiency to the utmost, reduces construction cost.
Description
Technical field
The present invention relates to power construction field of mechanical technique, in particular to a kind of multi-functional power construction is mechanical.
Background technique
In power construction, current wire rewinding and paying off machine is only able to satisfy retractable cable function, if necessary to lift by crane and transport conducting wire
Equal construction materials, will also separately employ crane and transport vehicle etc., not only somewhat expensive and bring some inconvenience to construction.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of structure is simple, design rationally, make
It is mechanical with convenient multi-functional power construction.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of multi-functional power construction of the present invention is mechanical, it includes U-shaped bottom seat and U-shaped lifting seat；The U
The opening direction of type pedestal is consistent with the opening direction of U-shaped lifting seat；It is provided with and leads on each lateral wall of the U-shaped bottom seat
To bar fixing seat；The top of the guide rod fixing seat is fixedly installed guide rod；Each lateral wall of the U-shaped lifting seat
On be provided with the guide sleeve to match with guide rod；The quantity of the guide sleeve and the quantity of guide rod are identical；Each guiding
Bar is inserted into corresponding guide sleeve from the bottom up respectively；Several oil are provided between the U-shaped bottom seat and U-shaped lifting seat
Cylinder；Described oil cylinder one end is mutually fixedly connected with the top surface of U-shaped bottom seat；The oil cylinder other end and the bottom surface of U-shaped lifting seat are mutually solid
Fixed connection；The left and right two-arm of the U-shaped lifting seat is provided with telescope support.
Further, the telescope support includes spring, bearing outside, sliding axle, bearing and rolling-up mechanism；The U
The pilot hole to match with sliding axle is provided on the arm of type lifting seat；Described sliding axle one end is provided with pulling plate；Sliding axle
The other end extend into the inside of U-shaped lifting seat after pilot hole；The sliding axle nesting is fixed in the inner ring of bearing；It is described
The outer ring nesting of bearing is fixed on the inside of bearing outside；Push plate is provided on the axle body of the sliding axle；The push plate and axis
Hold the inside for being arranged at U-shaped lifting seat；It is arranged on the U-shaped lifting seat fluted；The spring pocket is outside sliding axle；It is described
Spring one end is pressed on the end face of push plate；The spring other end is pressed on the inner bottom wall of groove；Described rolling-up mechanism one end and drawing
Plate is mutually fixedly connected；The rolling-up mechanism other end is mutually fixedly connected with U-shaped lifting seat；It is provided on the sliding axle for drive shaft
Hold the bearing outside driving mechanism of housing.
Further, the bottom of the U-shaped bottom seat is provided with several wheels.
Further, the rolling-up mechanism include Scroll, cable wire, winding motor, winding driving gear, winding it is driven
Gear and wind-up roll；Winding motor fixed plate and two Scroll fixing seats are provided on the U-shaped lifting seat；The Scroll
It is arranged between two Scroll fixing seats；The both ends of the Scroll are rotatablely connected with two Scroll fixing seats respectively；Institute
The output end for stating winding driven gear is mutually fixedly connected with Scroll；The quantity of the wind-up roll is two；The wind-up roll is equal
It is fixed on Scroll；The quantity of the cable wire is two；Wherein the both ends of a cable wire are outer with one of pulling plate respectively
Side end face is mutually fixedly connected with the body of roll of one of wind-up roll；The both ends of another cable wire outside with another pulling plate respectively
End face is mutually fixedly connected with the body of roll of another wind-up roll；The winding motor is mutually fixedly connected with winding motor fixed plate；Institute
The input terminal for stating winding driving gear is mutually fixedly connected with the output end of winding motor；The winding driven gear and winding are actively
Gear is meshed.
Further, the bearing outside driving mechanism includes and unreels driving gear, unwinding motor and unwinding motor to consolidate
Reservation；The unwinding motor fixing seat is fixed on pulling plate；The unwinding motor is fixed in unwinding motor fixing seat；It is described to put
The output end of volume motor is mutually fixedly connected with the input terminal for unreeling driving gear；The lateral wall of the bearing outside is provided with and puts
The teeth group that volume driving gear is meshed；The teeth group is made of several outer teeth；The outer teeth are on bearing outside
Circumferentially it is distributed.
Further, the end face outside of the bearing outside is fixedly installed rubber pad.
After adopting the above structure, the invention has the following beneficial effects: a kind of multi-functional power construction of the present invention is mechanical,
The opening direction of U-shaped bottom seat is consistent with the opening direction of U-shaped lifting seat；Guiding is provided on each lateral wall of U-shaped bottom seat
Bar fixing seat；The top of guide rod fixing seat is fixedly installed guide rod；It is provided on each lateral wall of U-shaped lifting seat
The guide sleeve to match with guide rod；The quantity of guide sleeve and the quantity of guide rod are identical；Each guide rod difference is from the bottom up
It is inserted into corresponding guide sleeve；Several oil cylinders are provided between U-shaped bottom seat and U-shaped lifting seat；Oil cylinder one end and U-shaped bottom seat
Top surface be mutually fixedly connected；The oil cylinder other end is mutually fixedly connected with the bottom surface of U-shaped lifting seat；The left and right two of U-shaped lifting seat
Arm is provided with telescope support.In using the present invention, it is inserted behind the aperture of the telescope support alignment cable volume two sides of the left and right sides
Enter, then oil cylinder drives, and makes U-shaped lifting seat along guide rod upward sliding one end distance, cable volume is made to be lifted away from ground；Flexible branch
With structure is unreeled on frame, unreel cable volume；The structure equipment included lifting and unreeled, cable volume are lifted automatically
And blowing, construction efficiency is improved to the utmost, reduces construction cost.
Detailed description of the invention
Fig. 1 is structural front view of the invention；
Fig. 2 is structure top view of the invention；
Fig. 3 is structure rearview of the invention；
Fig. 4 is the portion the A enlarged view in Fig. 2；
Fig. 5 is the portion the B enlarged view in Fig. 3；
Description of symbols:
1, wheel；2, oil cylinder；3, U-shaped bottom seat；301, guide rod fixing seat；4, guide rod；5, fixed pulley；6, U-shaped lifting
Seat；601, guide sleeve；602, pilot hole；603, groove；604, winding motor fixed plate；605, Scroll fixing seat；7, spring；
8, bearing outside；801, outer teeth；9, rubber pad；10, sliding axle；1001, push plate；1002, pulling plate；11, driving gear is unreeled；
12, unwinding motor；13, unwinding motor fixing seat；14, Scroll；15, cable is rolled up；16, cable wire；17, bearing；18, winding electricity
Machine；19, driving gear is wound；20, driven gear is wound；21, wind-up roll.
Specific embodiment
The present invention will be further described below with reference to the drawings.
As shown in Fig. 1 to 5, a kind of multi-functional power construction of the present invention is mechanical, it includes U-shaped bottom seat 3 and U
Type lifting seat 6；The opening direction of the U-shaped bottom seat 3 is consistent with the opening direction of U-shaped lifting seat 6；The U-shaped bottom seat 3 it is each
Guide rod fixing seat 301 is provided on lateral wall；The top of the guide rod fixing seat 301 is fixedly installed guide rod 4；
The guide sleeve 601 to match with guide rod 4 is provided on each lateral wall of the U-shaped lifting seat 6；The guide sleeve 601
Quantity it is identical as the quantity of guide rod 4；Each guide rod 4 is inserted into from the bottom up respectively in corresponding guide sleeve 601；It is described
Several oil cylinders 2 are provided between U-shaped bottom seat 3 and U-shaped lifting seat 6；Described 2 one end of oil cylinder and the top surface of U-shaped bottom seat 3 are mutually solid
Fixed connection；2 other end of oil cylinder is mutually fixedly connected with the bottom surface of U-shaped lifting seat 6；The left and right two-arm of the U-shaped lifting seat 6 is all provided with
It is equipped with telescope support；It is inserted into behind the aperture of 15 two sides of telescope support alignment cable volume of the left and right sides, then oil cylinder 2 drives, and makes U
Type lifting seat 6 makes cable volume 15 be lifted away from ground along 4 upward sliding one end distance of guide rod；It is had on telescope support and unreels knot
Structure unreels cable volume 15；The structure equipment included lifting and unreeled, cable volume 15 is lifted automatically and blowing,
Construction efficiency is improved to the utmost, reduces construction cost.
As a kind of preferred embodiment of the invention, the telescope support include spring 7, bearing outside 8, sliding axle 10,
Bearing 17 and rolling-up mechanism；The pilot hole 602 to match with sliding axle 10 is provided on the arm of the U-shaped lifting seat 6；It is described
10 one end of sliding axle is provided with pulling plate 1002；10 other end of sliding axle extend into the interior of U-shaped lifting seat 6 after passing through pilot hole 602
Portion；10 nesting of sliding axle is fixed in the inner ring of bearing 17；The outer ring nesting of the bearing 17 is fixed on bearing outside 8
It is internal；Push plate 1001 is provided on the axle body of the sliding axle 10；The push plate 1001 and bearing 17 are arranged at U-shaped lifting seat
6 inside；It is arranged fluted 603 on the U-shaped lifting seat 6；7 sets of the spring is outside sliding axle 10；Described 7 one end of spring is supported
It is pressed on the end face of push plate 1001；7 other end of spring is pressed on the inner bottom wall of groove 603；Described rolling-up mechanism one end and pulling plate
1002 phases are fixedly connected；The rolling-up mechanism other end is fixedly connected with U-shaped 6 phase of lifting seat；It is provided with and is used on the sliding axle 10
Drive the bearing outside driving mechanism of bearing outside 8；Rolling-up mechanism winding, makes the sliding axle 10 of two sides respectively toward U-shaped lifting seat 6
Two sides movement, until the distance between two sliding axles 10 less than cable roll up 15 inner holes length；The sliding axle 10 of two sides is distinguished
The inner hole two sides of cable volume 15 are directed at, rolling-up mechanism unclamps, and since spring 7 is sprung back, is inserted into the correspondence of sliding axle 10 of two sides
Cable is rolled up in the hole of 15 two sides, and two bearing outsides 8 are pressed on the both sides of the face of cable volume 15.
As a kind of preferred embodiment of the invention, the bottom of the U-shaped bottom seat 3 is provided with several wheels 1.
As a kind of preferred embodiment of the invention, the rolling-up mechanism includes Scroll 14, cable wire 16, winding motor
18, driving gear 19, winding driven gear 20 and wind-up roll 21 are wound；Winding motor is provided on the U-shaped lifting seat 6 to fix
Plate 604 and two Scroll fixing seats 605；The Scroll 14 is arranged between two Scroll fixing seats 605；The winding
The both ends of axis 14 are rotatablely connected with two Scroll fixing seats 605 respectively；The output end of the winding driven gear 20 and winding
14 phase of axis is fixedly connected；The quantity of the wind-up roll 21 is two；The wind-up roll 21 is each attached on Scroll 14；The steel
The quantity of rope 16 is two；The wherein both ends of a cable wire 16 respectively with the end face outside of one of pulling plate 1002 and wherein one
The body of roll of a wind-up roll 21 is mutually fixedly connected；The both ends of another cable wire 16 respectively with the end face outside of another pulling plate 1002 and
The body of roll of another wind-up roll 21 is mutually fixedly connected；The winding motor 18 is fixedly connected with 604 phase of winding motor fixed plate；Institute
The input terminal for stating winding driving gear 19 is mutually fixedly connected with the output end of winding motor 18；The winding driven gear 20 and receipts
Volume driving gear 19 is meshed；Guiding of multiple fixed pulleys 5 for cable wire 16 is provided on U-shaped lifting seat 6, winding motor 18 opens
It is dynamic, Scroll 14 is rotated, winding of two wind-up rolls 21 to cable wire 16 is driven, control sliding axle 10 is carried out and slides.
As a kind of preferred embodiment of the invention, the bearing outside driving mechanism includes to unreel driving gear 11, put
Roll up motor 12 and unwinding motor fixing seat 13；The unwinding motor fixing seat 13 is fixed on pulling plate 1002；The unwinding motor
12 are fixed in unwinding motor fixing seat 13；The output end of the unwinding motor 12 and the input terminal for unreeling driving gear 11 are mutually solid
Fixed connection；The lateral wall of the bearing outside 8 is provided with and the teeth group that unreels driving gear 11 and be meshed；The teeth group by
Several outer teeth 801 form；The outer teeth 801 are circumferentially distributed on bearing outside 8；Before use, the axis of sliding axle 10
Lubricating oil is coated with it, after unwinding motor 12 drives, is driven bearing outside 8 to rotate relative to sliding axle 10, is made to be pressed on two axis
The cable volume 15 held between housing 8 is rotated around sliding axle 10, carries out unreeling for cable volume 15.
As a kind of preferred embodiment of the invention, the end face outside of the bearing outside 8 is fixedly installed rubber pad 9,
Frictional force between the effect enhancing cable volume 15 and bearing outside 8 of rubber pad 9, prevents between cable volume 15 and bearing outside 8
It skids.
In using the present invention, winding motor starts, and rotates Scroll, drives winding of two wind-up rolls to cable wire,
Cable wire slides on fixed pulley carries out control sliding axle sliding, moves the sliding axle of two sides toward the two sides of U-shaped lifting seat respectively,
Length to the distance between two sliding axles less than cable volume inner hole；The sliding axle of two sides is respectively aligned to the inner hole two of cable volume
Side, rolling-up mechanism unclamp, and due to recoil of spring, make in the corresponding hole for being inserted into cable volume two sides of the sliding axle of two sides, and two
A bearing outside is pressed on the both sides of the face of cable volume, and then oil cylinder drives, and makes U-shaped lifting seat along guide rod upward sliding one
Distance is held, cable volume is made to be lifted away from ground；After unwinding motor driving, drives bearing outside to rotate relative to sliding axle, make to be pressed on
Cable winding sliding axle rotation between two bearing outsides, carries out unreeling for cable volume；It the equipment included lifting and unreels
Structure, cable volume is lifted automatically and blowing, improves construction efficiency to the utmost, reduces construction cost.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention,
The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (5)
1. a kind of multi-functional power construction is mechanical, it is characterised in that: it includes U-shaped bottom seat (3) and U-shaped lifting seat (6)；Institute
The opening direction for stating U-shaped bottom seat (3) is consistent with the opening direction of U-shaped lifting seat (6)；Each lateral wall of the U-shaped bottom seat (3)
On be provided with guide rod fixing seat (301)；The top of the guide rod fixing seat (301) is fixedly installed guide rod (4)；
The guide sleeve (601) to match with guide rod (4) is provided on each lateral wall of the U-shaped lifting seat (6)；The guiding
The quantity for covering (601) is identical as the quantity of guide rod (4)；Each guide rod (4) is inserted into corresponding guiding from the bottom up respectively
It covers in (601)；Several oil cylinders (2) are provided between the U-shaped bottom seat (3) and U-shaped lifting seat (6)；Described oil cylinder (2) one end
It is mutually fixedly connected with the top surface of U-shaped bottom seat (3)；Oil cylinder (2) other end is mutually fixedly connected with the bottom surface of U-shaped lifting seat (6)；
The left and right two-arm of the U-shaped lifting seat (6) is provided with telescope support；The telescope support includes spring (7), bearing outside
(8), sliding axle (10), bearing (17) and rolling-up mechanism；It is provided on the arm of the U-shaped lifting seat (6) and sliding axle (10)
The pilot hole (602) to match；Described sliding axle (10) one end is provided with pulling plate (1002)；Sliding axle (10) other end is passed through and is led
The inside of U-shaped lifting seat (6) is extend into after to hole (602)；Sliding axle (10) nesting is fixed in the inner ring of bearing (17)；
The outer ring nesting of the bearing (17) is fixed on the inside of bearing outside (8)；It is provided with and pushes away on the axle body of the sliding axle (10)
Plate (1001)；The push plate (1001) and bearing (17) are arranged at the inside of U-shaped lifting seat (6)；The U-shaped lifting seat (6)
Upper setting fluted (603)；The spring (7) cover sliding axle (10) outside；Described spring (7) one end is pressed on push plate (1001)
End face on；Spring (7) other end is pressed on the inner bottom wall of groove (603)；Described rolling-up mechanism one end and pulling plate (1002) phase
It is fixedly connected；The rolling-up mechanism other end is mutually fixedly connected with U-shaped lifting seat (6)；It is provided on the sliding axle (10) for driving
The bearing outside driving mechanism of dynamic bearing housing (8).
2. a kind of multi-functional power construction according to claim 1 is mechanical, it is characterised in that: the U-shaped bottom seat (3)
Bottom is provided with several wheels (1).
3. a kind of multi-functional power construction according to claim 1 is mechanical, it is characterised in that: the rolling-up mechanism includes
There are Scroll (14), cable wire (16), winding motor (18), winding driving gear (19), winding driven gear (20) and wind-up roll
(21)；Winding motor fixed plate (604) and two Scroll fixing seats (605) are provided on the U-shaped lifting seat (6)；It is described
Scroll (14) is arranged between two Scroll fixing seats (605)；The both ends of the Scroll (14) are wound with two respectively
Axis fixing seat (605) rotation connection；The output end of winding driven gear (20) is mutually fixedly connected with Scroll (14)；It is described
The quantity of wind-up roll (21) is two；The wind-up roll (21) is each attached on Scroll (14)；The quantity of the cable wire (16)
It is two；Wherein the both ends of a cable wire (16) respectively with the end face outside of one of pulling plate (1002) and one of winding
The body of roll of roller (21) is mutually fixedly connected；The both ends of another cable wire (16) respectively with the end face outside of another pulling plate (1002) and
The body of roll of another wind-up roll (21) is mutually fixedly connected；The winding motor (18) is mutually fixed with winding motor fixed plate (604)
Connection；The input terminal of winding driving gear (19) is mutually fixedly connected with the output end of winding motor (18)；It is described winding from
Moving gear (20) is meshed with winding driving gear (19).
4. a kind of multi-functional power construction according to claim 1 is mechanical, it is characterised in that: the bearing outside driving
Mechanism includes to unreel driving gear (11), unwinding motor (12) and unwinding motor fixing seat (13)；The unwinding motor is fixed
Seat (13) is fixed on pulling plate (1002)；The unwinding motor (12) is fixed on unwinding motor fixing seat (13)；It is described to unreel
The output end of motor (12) is mutually fixedly connected with the input terminal for unreeling driving gear (11)；The lateral wall of the bearing outside (8)
The teeth group for being provided with and unreeling driving gear (11) and being meshed；The teeth group is made of several outer teeth (801)；It is described
Outer teeth (801) are circumferentially distributed on bearing outside (8).
5. a kind of multi-functional power construction according to claim 1 is mechanical, it is characterised in that: the bearing outside (8)
End face outside be fixedly installed rubber pad (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473920.9A CN107425467B (en) | 2017-10-09 | 2017-10-09 | A kind of multi-functional power construction is mechanical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473920.9A CN107425467B (en) | 2017-10-09 | 2017-10-09 | A kind of multi-functional power construction is mechanical |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107425467A CN107425467A (en) | 2017-12-01 |
| CN107425467B true CN107425467B (en) | 2019-04-26 |
Family
ID=60427377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710473920.9A Active CN107425467B (en) | 2017-10-09 | 2017-10-09 | A kind of multi-functional power construction is mechanical |
Country Status (1)
| Country | Link |
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| CN (1) | CN107425467B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202840384U (en) * | 2012-12-12 | 2013-03-27 | 浙江省邮电器材公司 | Lifting moving cable drum carriage |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241050A (en) * | 2001-02-14 | 2002-08-28 | Mitsubishi Electric Corp | Cable drum supporting device |
| US20090045282A1 (en) * | 2007-08-13 | 2009-02-19 | Mike Cecil | System for lifting, holding, and dispensing spooled cable |
| CN205011137U (en) * | 2015-08-31 | 2016-02-03 | 广州市长江通信实业有限公司 | Simple and easy passive form pay off rack of double -end |
| CN205045594U (en) * | 2015-10-10 | 2016-02-24 | 中天科技装备电缆有限公司 | Two pair receipts pay off racks of putting |
| CN205526996U (en) * | 2016-03-18 | 2016-08-31 | 广东中天科技光缆有限公司 | A pay off rack for communications optical cable |
| CN107161796B (en) * | 2017-06-21 | 2019-11-12 | 国网浙江省电力有限公司嵊泗县供电公司 | A kind of power construction payingoff mechanism |
-
2017
- 2017-10-09 CN CN201710473920.9A patent/CN107425467B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202840384U (en) * | 2012-12-12 | 2013-03-27 | 浙江省邮电器材公司 | Lifting moving cable drum carriage |
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| Publication number | Publication date |
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| CN107425467A (en) | 2017-12-01 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190326 Address after: 312500 Shangshi Yan Village, Qixing Street, Xinchang County, Shaoxing City, Zhejiang Province, 10 501 blocks Applicant after: Xinchang Beishun Machinery Co.,Ltd. Address before: 528429 No. 63 Xinfeng North Road, Huangpu Town, Zhongshan City, Guangdong Province Applicant before: Wu Shuxia |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20171201 Assignee: Jiaxing kopuno Machinery Technology Co.,Ltd. Assignor: Xinchang Beishun Machinery Co.,Ltd. Contract record no.: X2021330000477 Denomination of invention: Multifunctional electric power construction machinery Granted publication date: 20190426 License type: Common License Record date: 20211019 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiaxing kopuno Machinery Technology Co.,Ltd. Assignor: Xinchang Beishun Machinery Co.,Ltd. Contract record no.: X2021330000477 Date of cancellation: 20220912 |