CN109469773A - A kind of supply hose fixing device and method - Google Patents

A kind of supply hose fixing device and method Download PDF

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Publication number
CN109469773A
CN109469773A CN201811287159.0A CN201811287159A CN109469773A CN 109469773 A CN109469773 A CN 109469773A CN 201811287159 A CN201811287159 A CN 201811287159A CN 109469773 A CN109469773 A CN 109469773A
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CN
China
Prior art keywords
rigging
supply hose
stringing device
tying
door frame
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
Application number
CN201811287159.0A
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Chinese (zh)
Other versions
CN109469773B (en
Inventor
徐珊娜
李万德
阎淼龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Shipyard International Co Ltd
Original Assignee
Guangzhou Shipyard International Co Ltd
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Publication date
Application filed by Guangzhou Shipyard International Co Ltd filed Critical Guangzhou Shipyard International Co Ltd
Priority to CN201811287159.0A priority Critical patent/CN109469773B/en
Publication of CN109469773A publication Critical patent/CN109469773A/en
Application granted granted Critical
Publication of CN109469773B publication Critical patent/CN109469773B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/22Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
    • F16L3/23Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other

Abstract

The present invention discloses a kind of supply hose fixing device and method, including door frame, door frame is equipped with supply hose, it is characterized in that, it further include the first stringing device, second stringing device, tie up rigging and traction rigging, first stringing device and the second stringing device are located at the two sides of supply hose, rigging is tied up to be arranged on the first stringing device, and it ties up one end of rigging and is fixed on the second stringing device around the outer surface of supply hose, the other end for tying up rigging extends on deck plane, one end of traction rigging, which is sheathed on, ties up on rigging, and between the first stringing device and the second stringing device, the other end extends on deck plane, it can be by pulling traction rigging close to one end of deck plane, realize that drive height aerial on deck plane ties up rigging, realize the binding released to supply hose, operator is avoided to need to climb Upper high altitude operation, can not be to the fixation of supply hose when solving the problems, such as to feed the excessive height of hose.

Description

A kind of supply hose fixing device and method
Technical field
The present invention relates to ship hose technique for fixing field more particularly to a kind of supply hose fixing device and methods.
Background technique
In ship during navigation, needing to berth harbour or carries out fuel oil, fresh water, material or messes by tender Supply.And during the supply of liquid goods, supply hose and the supply source or tender for needing to be arranged on ship are attached, It needs to feed hose after the completion of supply and withdraws fixation.For the fixation of supply hose in existing ship, usually in ship Replenishment gantry is set on oceangoing ship, then supply hose is fixed on replenishment gantry.The height of replenishment gantry is usually higher, Shui Shouwu The top that method reaches replenishment gantry carries out tying up fixation to supply hose, during ship's navigation, feeds hose by stormy waves Or the swing of ship influences, so that its shaking amplitude is larger, leads to the serious wear for feeding hose, so that it is soft to seriously affect supply The service life of pipe and the reliability of replenishment operation.
Summary of the invention
One purpose of the embodiment of the present invention is: providing a kind of supply hose fixing device, can facilitate completion pair Feed fixation of the hose on door frame.
Another purpose of the embodiment of the present invention is: providing a kind of fixed dress method of supply hose, enables to grasp Make personnel's easily fixation of the completion to supply hose on deck plane.
In order to achieve the above object, the invention adopts the following technical scheme:
On the one hand, a kind of supply hose fixing device, including door frame are provided, the door frame is equipped with supply hose, also wraps It includes the first stringing device, the second stringing device, tie up rigging and traction rigging, first stringing device and second wire rope handling Device is located at the two sides of the supply hose, and the rigging of tying up is arranged on the first stringing device, and described ties up rope One end of tool is fixed on the second stringing device around the outer surface of the supply hose, and the other end for tying up rigging extends To deck plane, one end of the traction rigging be sheathed on it is described tie up on rigging, and be located at first stringing device and institute It states between the second stringing device, the other end extends on the deck plane.
As a preferred technical solution of the invention, the supply hose is corresponded on the door frame and is provided with support group Part, and the support component is arranged adjacent to first stringing device and the second stringing device.
As a preferred technical solution of the invention, the support component includes the branch being fixedly connected with the door frame Seat is supportted, is provided with arc-shaped support plate between the support base and the supply hose.
As a preferred technical solution of the invention, the support plate is arranged on the side of the supply hose There is buffer unit.
As a preferred technical solution of the invention, first stringing device includes fixed eye plate and guiding group Part, the fixed eye plate are fixedly installed on the door frame, and the guidance set is set on the fixed eye plate, and the bundle Rigging is pricked to be arranged on the guidance set.
As a preferred technical solution of the invention, the guidance set is fixed pulley, and the fixed pulley is by unloading Button is fixed on the fixed eye plate.
As a preferred technical solution of the invention, the guidance set further includes described tying up rigging for limiting The direction of motion directional wheel, the directional wheel is fixedly installed on the door frame, and is located at the fixed pulley close to the first The side of plate face.
As a preferred technical solution of the invention, described tie up is arranged on rigging and can tie up on rigging described The link of sliding, the traction rigging are fixedly connected close to described one end for tying up rigging with the link.
As a preferred technical solution of the invention, described one end for tying up rigging close to deck plane and the traction Rigging is connected close to one end of the deck plane.
On the other hand, a kind of method using supply hose fixing device as described above is provided comprising following steps:
Step S100, the supply hose fixing device is set on door frame;
Step S200, traction rigging is pulled, ties up rigging by between the first stringing device and the second stringing device to drive Position moved toward deck plane direction, until supply hose may pass through and described tie up the location of rigging;
Step S300, the supply hose is hung to the door frame;
Step S400, the rigging of tying up is bypassed into the supply hose, and ties up the free end of rigging described in pulling, made The supply hose is tightened, to complete the fixation to the supply hose.
The invention has the benefit that the first stringing device and the second stringing device are arranged on door frame, and worn first Rigging is tied up in setting between rope device and the second stringing device, can be realized by adjusting the tightness for tying up rigging soft to feeding The bundled fixed of pipe;Tying up between the first stringing device and the second stringing device is arranged traction rigging on rigging, can pass through It pulls traction rigging close to one end of deck plane, realizes that drive height aerial on deck plane ties up rigging, realize and release to benefit To the binding of hose, operator is avoided to need to climb up high altitude operation, solving can not be to supply when feeding the excessive height of hose The problem of the fixation of hose.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is supply hose fixing device schematic diagram described in the embodiment of the present invention.
Fig. 2 is the schematic top plan view that hose fixing device is fed described in the embodiment of the present invention.
In figure:
1, door frame;2, hose is fed;3, the first stringing device;31, fixed eye plate;32, fixed pulley;33, directional wheel;4, Two stringing devices;5, rigging is tied up;6, rigging is drawn;61, link;7, support component;71, support base;72, support plate;73, delay Rush component.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral;It can be mechanical connection, It can be electrical connection;It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower" It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above " Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of First feature horizontal height is less than second feature.
As shown in Fig. 1 to 2, in this present embodiment, a kind of supply hose fixing device of the present invention, including door frame 1, Door frame 1 is equipped with supply hose 2, further includes the first stringing device 3, the second stringing device 4, ties up rigging 5 and traction rigging 6, First stringing device 3 and the second stringing device 4 are located at the two sides of supply hose 2, tie up rigging 5 and are arranged in the first wire rope handling dress It sets on 3, and ties up one end of rigging 5 and be fixed on the second stringing device 4 around the outer surface of supply hose 2, tie up rigging 5 The other end extends on deck plane, and one end of traction rigging 6 is sheathed on and ties up on rigging 5, and is located at the first stringing device 3 and the Between two stringing devices 4, the other end is extended on deck plane.
First stringing device 3 and the second stringing device 4 are set on door frame 1, and in the first stringing device 3 and the second wire rope handling Rigging 5 is tied up in setting between device 4, can be realized by adjusting the tightness for tying up rigging 5 solid to the binding of supply hose 2 It is fixed;Tying up between the first stringing device 3 and the second stringing device 4 is arranged traction rigging 6 on rigging 5, can be led by pulling Straw line has 6 close to one end of deck plane, realizes that drive height aerial on deck plane ties up rigging 5, realization releases soft to feeding The binding of pipe 2 avoids operator from needing to climb up high altitude operation, can not be soft to feeding when solving the excessive height of supply hose 2 The problem of the fixation of pipe 2.
In embodiments of the present invention, corresponding supply hose 2 is provided with support component 7 on door frame 1, and support component 7 is neighbouring First stringing device 3 and the setting of the second stringing device 4.
By the way that support component 7 is arranged in the position of neighbouring first stringing device 3 and the second stringing device 4, can door frame 1 with It feeds and forms support between hose 2, avoid in the first stringing device 3, the second stringing device 4 and tie up the cooperation of rigging 5 to supply When the fixation of hose 2, the guarantee supply hose 2 excessive apart from the excessive bending for causing supply hose 2 with door frame 1 of supply hose 2 Service life, and further to supply hose 2 formed restriction effect, limit supply hose 2 movement.
In a specific embodiment, support component 7 includes the support base 71 being fixedly connected with door frame 1, support base 71 Arc-shaped support plate 72 is provided between supply hose 2.
The support component 7 that be made of the support plate 72 of support base 71 and arc subtracts, it can be achieved that support to supply hose 2 The deformation of hose 2 is fed less and feeds the movement of hose 2, meanwhile, the support plate 72 of arc can more be bonded supply hose 2, It avoids the setting of support plate 72 from contacting the line of supply hose 2, compressing is formed to supply hose, preferably fixed effect can be played Fruit.
Preferably, support plate 72 is provided with buffer unit 73 on the side of supply hose 2.
Buffer unit 73 is set in support plate 72 on the side of supply hose 2, supply hose 2 and support plate can be reduced Dawdling between 72 avoids when sea situation is severe, supply hose 2 shake and with 72 phase mutual friction of support plate, cause supply hose 2 Abrasion, influence feed hose 2 service life.
Specifically, buffer unit 73 can be the sheet rubber for being bonded setting with support plate 72.
In embodiments of the present invention, the first stringing device 3 includes fixed eye plate 31 and guidance set, and fixed eye plate 31 is fixed It is set on door frame 1, guidance set is set on fixed eye plate 31, and is tied up rigging 5 and be arranged on guidance set.
By the way that the first stringing device 3 being made of fixed eye plate 31 with guidance set is arranged on door frame 1, wherein fixed Eye plate 31 can be used for fixed guide component;Guidance set, which can be reduced, ties up rubbing between rigging 5 and door frame 1 and fixed eye plate 31 It wipes, plays the role of protection and tie up rigging 5, while enabling to the pulling for tying up rigging 5 more laborsaving, it is soft to reduce fixed supply Work difficulty when pipe 2.
In embodiments of the present invention, the second stringing device 4 can be fixedly disposed at fixation orderliness on door frame 1, fixation Ring or other end for tying up rigging 5 can be fixed on to 1 upper-part of door frame.
In a specific embodiment, guidance set is fixed pulley 32, and fixed pulley 32 is fixed on fixed eye by shackle On plate 31.
Guidance set is used as using fixed pulley 32, the CONTACT WITH FRICTION tied up between rigging 5 and the first stringing device 3 can be changed To be in rolling contact, the effective abrasion reduced to rigging 5 is tied up guarantees the service life for tying up rigging 5, so that tying up rigging 5 The fixation difficulty of supply hose 2 can be reduced by easier pulling.
In a preferred embodiment, guidance set further includes the orientation for limiting the direction of motion for tying up rigging 5 Wheel 33, directional wheel 33 is fixedly installed on door frame 1, and is located at fixed pulley 32 close to the side of deck plane.
By the way that directional wheel 33 is arranged on door frame 1, the direction for tying up rigging 5 after fixed pulley 32 can be limited, is limited Surely it ties up rigging 5 and 32 angulation of fixed pulley, guarantees to tie up being in rolling contact for rigging 5 and the pulley of fixed pulley 32, guarantee to tie Pricking rigging 5 can smoothly be pulled.
In embodiments of the present invention, the link 61 for being arranged with and being slided on rigging 5 on tying up rigging 5, hauling rope are tied up Tool 6 is fixedly connected close to the one end for tying up rigging 5 with link 61.
It is connected on link 61 by the way that link 61 is arranged on tying up rigging 5, and by traction rigging 6, it is ensured that hauling rope Tool 6 can move freely on tying up rigging 5, guarantee that traction rigging 6 can smoothly drive and tie up rigging 5 toward the shifting of deck plane direction It is dynamic, release the fixation for tying up 5 pairs of rigging supply hoses 2.
In an optional embodiment of the present invention, it is close close to one end of deck plane and traction rigging 6 to tie up rigging 5 One end of deck plane connects.
Rigging 5 will be tied up to connect with traction rigging 6, traction rigging 6 can tie up rigging 5 in pulling and realize that releasing is soft to feeding When the binding of pipe 2, play the role of extending and tie up rigging 5, avoid tying up rigging 5 it is too short when increased on one end of deck plane Du Taigao, and operator is caused to can't reach, the fixation to supply hose 2 can not be completed again.
In other embodiments, it can also be realized by the way that draw off gear is arranged in the free end for tying up rigging 5 to tying up rigging 5 folding and unfolding, and then realize the fixed automation control of fixation and releasing to supply hose 2.
In embodiments of the present invention, a kind of supply hose fixing means is additionally provided, specifically includes the following steps:
Step S100, the fixed device of supply hose 2 as described above is set on door frame 1;
Step S200, traction rigging 6 is pulled, ties up rigging 5 by the first stringing device 3 and the second stringing device 4 to drive Between position moved toward deck plane direction, until supply hose 2 may pass through and tie up the location of rigging 5;
Step S300, supply hose 2 is hung to door frame 1;
Step S400, rigging 5 will be tied up around supply hose 2, and pull the free end for tying up rigging 5, make to feed hose 2 It is tightened, to complete the fixation to supply hose 2.
In step S400, it is necessary first to will supply hose 2 it is mobile in place, then will be located at the first stringing device 3 and the Rigging 5 of tying up between two stringing devices 4 is tied to supply side of the hose 2 far from door frame 1, while receiving and moving oneself for tying up rigging 5 By holding, so that the rigging 5 of tying up between the first stringing device 3 and the second stringing device 4 is tightened, complete to supply hose 2 Locking.
In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention System.In addition, term " first ", " second ", are only used to distinguish between description, have no special meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment Or example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.? In this specification, schematic expression of the above terms be may not refer to the same embodiment or example.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can With the other embodiments of understanding.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within Within protection scope of the present invention.

Claims (10)

1. a kind of supply hose fixing device, including door frame, the door frame is equipped with supply hose, which is characterized in that further includes First stringing device, the second stringing device tie up rigging and traction rigging, first stringing device and second wire rope handling dress The two sides for being located at the supply hose are set, the rigging of tying up is arranged on the first stringing device, and described ties up rigging One end around it is described supply hose outer surface be fixed on the second stringing device, the other end for tying up rigging extends to On deck plane, one end of the traction rigging be sheathed on it is described tie up on rigging, and be located at first stringing device and described Between second stringing device, the other end is extended on the deck plane.
2. supply hose fixing device according to claim 1, which is characterized in that it is soft to correspond to the supply on the door frame Pipe is provided with support component, and the support component is arranged adjacent to first stringing device and the second stringing device.
3. supply hose fixing device according to claim 2, which is characterized in that the support component includes and the door The support base that frame is fixedly connected is provided with arc-shaped support plate between the support base and the supply hose.
4. supply hose fixing device according to claim 3, which is characterized in that the support plate is soft close to the supply Buffer unit is provided on the side of pipe.
5. supply hose fixing device according to claim 1, which is characterized in that first stringing device includes fixing Eye plate and guidance set, the fixed eye plate are fixedly installed on the door frame, and the guidance set is set to the fixed eye On plate, and the rigging of tying up is arranged on the guidance set.
6. supply hose fixing device according to claim 5, which is characterized in that the guidance set is fixed pulley, institute Fixed pulley is stated to be fixed on the fixed eye plate by shackle.
7. supply hose fixing device according to claim 6, which is characterized in that the guidance set further includes for limiting The directional wheel of the fixed direction of motion for tying up rigging, the directional wheel are fixedly installed on the door frame, and positioned at described fixed Pulley is close to the side of the deck plane.
8. supply hose fixing device according to claim 1, which is characterized in that described to tie up that be arranged on rigging be Described to tie up the link slided on rigging, the traction rigging is fixed close to described one end for tying up rigging and the link to be connected It connects.
9. supply hose fixing device according to claim 1, which is characterized in that the rigging of tying up is close to deck plane One end is connect with the traction rigging close to one end of the deck plane.
10. a kind of method using the described in any item supply hose fixing devices of claim 1 to 9, which is characterized in that including Following steps:
Step S100, the supply hose fixing device is set on door frame;
Step S200, traction rigging is pulled, ties up rigging by position between the first stringing device and the second stringing device to drive The movement of past deck plane direction, until supply hose may pass through and described tie up the location of rigging;
Step S300, the supply hose is hung to the door frame;
Step S400, the rigging of tying up is bypassed into the supply hose, and ties up the free end of rigging described in pulling, made described Supply hose is tightened, to complete the fixation to the supply hose.
CN201811287159.0A 2018-10-31 2018-10-31 Supply hose fixing device and method Active CN109469773B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201811287159.0A CN109469773B (en) 2018-10-31 2018-10-31 Supply hose fixing device and method

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CN109469773A true CN109469773A (en) 2019-03-15
CN109469773B CN109469773B (en) 2021-01-12

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1113939A (en) * 1997-06-27 1999-01-22 Sumitomo Electric Ind Ltd Fixing method of long size body to wall surface
EP1582692A2 (en) * 2004-04-01 2005-10-05 National-Oilwell, L.P. Element centring apparatus and method
JP2006162009A (en) * 2004-12-09 2006-06-22 Akira Nakayama Binding supporting band for pipes or the like
CN203880244U (en) * 2014-06-13 2014-10-15 湖南双鱼船艇科技有限公司 Ship pipe and line tightly mounting device
CN104295149A (en) * 2014-10-28 2015-01-21 国网河北冀州市供电公司 Automatic disassembly type pole standing side rope retaining ring and method for standing pole with same
US20160123502A1 (en) * 2014-10-30 2016-05-05 Ireco, Llc Air brake hose support bracket
CN206117003U (en) * 2016-10-08 2017-04-19 广西电网有限责任公司电力科学研究院 Articulate distribution network ice -melt connecting wire's device fast
CN107215765A (en) * 2017-06-15 2017-09-29 中国二十冶集团有限公司 Lift shackle
CN107521626A (en) * 2017-07-20 2017-12-29 武汉船用机械有限责任公司 A kind of flexible pipe extension and retraction system
CN207767026U (en) * 2017-12-08 2018-08-28 成都市中以津惠农业科技有限公司 A kind of greenhouse teleblem hold-down mechanism

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1113939A (en) * 1997-06-27 1999-01-22 Sumitomo Electric Ind Ltd Fixing method of long size body to wall surface
EP1582692A2 (en) * 2004-04-01 2005-10-05 National-Oilwell, L.P. Element centring apparatus and method
JP2006162009A (en) * 2004-12-09 2006-06-22 Akira Nakayama Binding supporting band for pipes or the like
CN203880244U (en) * 2014-06-13 2014-10-15 湖南双鱼船艇科技有限公司 Ship pipe and line tightly mounting device
CN104295149A (en) * 2014-10-28 2015-01-21 国网河北冀州市供电公司 Automatic disassembly type pole standing side rope retaining ring and method for standing pole with same
US20160123502A1 (en) * 2014-10-30 2016-05-05 Ireco, Llc Air brake hose support bracket
CN206117003U (en) * 2016-10-08 2017-04-19 广西电网有限责任公司电力科学研究院 Articulate distribution network ice -melt connecting wire's device fast
CN107215765A (en) * 2017-06-15 2017-09-29 中国二十冶集团有限公司 Lift shackle
CN107521626A (en) * 2017-07-20 2017-12-29 武汉船用机械有限责任公司 A kind of flexible pipe extension and retraction system
CN207767026U (en) * 2017-12-08 2018-08-28 成都市中以津惠农业科技有限公司 A kind of greenhouse teleblem hold-down mechanism

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EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20190315

Assignee: Guangzhou Wenchong Shipbuilding Co.,Ltd.

Assignor: Guangzhou Shipyard International Co.,Ltd.

Contract record no.: X2021440000208

Denomination of invention: Supply hose fixing device and method

Granted publication date: 20210112

License type: Common License

Record date: 20211116

EE01 Entry into force of recordation of patent licensing contract