CN109230885A - A kind of concentric shafts collapse pipe - Google Patents
A kind of concentric shafts collapse pipe Download PDFInfo
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- CN109230885A CN109230885A CN201811081928.1A CN201811081928A CN109230885A CN 109230885 A CN109230885 A CN 109230885A CN 201811081928 A CN201811081928 A CN 201811081928A CN 109230885 A CN109230885 A CN 109230885A
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- Prior art keywords
- pipe
- cover board
- hinge
- arc
- hinge cover
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention belongs to coiled strip separation technology fields, it discloses a kind of concentric shafts and collapses pipe, including the first hollow pipe, the hinge cover board, elastic webbing being made of at least arc-shaped hinge in three pieces end, the arc-shaped hinge in the adjacent end is flexibly connected, the hinge cover board is located on the outside of the arc-shaped hinge in end, the hinge cover board is fixedly connected with the arc-shaped hinge in end, and the elastic webbing covers in the outside of the first hollow pipe, and the elastic webbing is between the first hollow pipe and hinge cover board.Crimping waste material is collected using the present invention, crimping waste material can not refer and synthesize other substances, crimping waste material can be made to obtain utilization as valuable as possible, can also use concentric shafts repeatedly collapse pipe to substitute original disposable paper tube or plastic pipe, energy conservation and environmental protection, and collect crimping waste material in this way, save working hour, it improves work efficiency, the use of also reduction blade perhaps scissors not will cause the damage of blade or scissors and waste cutter.
Description
Technical field
The invention belongs to coiled strip separation technology fields, and in particular to a kind of concentric shafts collapse pipe.
Background technique
It is that crimping waste material is collected using paper tube or plastic pipe, by crimping waste material when collecting crimping waste material in production at present
It is wrapped on paper tube or plastic pipe, but in this way after operation, it has not been convenient to separate crimping waste material, if it is desired to separate crimping waste material
If, it needs to be rejected with blade or scissors, is not only easily damaged blade in this way and causes the waste of blade, but also will cause people
Work and the waste material purity for increasing and eliminating of time cost is not high, the value of secondary use is reduced, if not separating crimping
Waste material, the secondary use value for not only resulting in crimping waste material reduces, but also can waste paper tube or plastic pipe, makes paper tube or modeling
Sebific duct loses the value being used repeatedly.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide a kind of concentric shafts to collapse pipe.
The technical scheme adopted by the invention is as follows:
A kind of concentric shafts collapse pipe, including the first hollow pipe, the hinge lid being made of at least arc-shaped hinge in three pieces end
Plate, elastic webbing, the arc-shaped hinge in the adjacent end are flexibly connected, and the hinge cover board is located at outside the arc-shaped hinge in end
Side, the hinge cover board are fixedly connected with the arc-shaped hinge in end, and the elastic webbing is covered in the outside of the first hollow pipe, the bullet
Property band is between the first hollow pipe and hinge cover board.
A kind of concentric shafts collapse pipe, and further design is, first hollow pipe is internally provided with the
Two hollow pipes, and the second hollow pipe pipe range more hollow than first.
A kind of concentric shafts collapse pipe, and further design is that the both ends of first hollow pipe are respectively placed with
One conical hollow part, the conical hollow part cover on second hollow pipe, and conical hollow part is fixed with the second hollow pipe
Connection.
A kind of concentric shafts collapse pipe, and further design is, be additionally provided on the outside of first hollow pipe to
Few two annular grooves, the elastic webbing are embedded in annular groove.
A kind of concentric shafts collapse pipe, and further design is, are additionally provided on the outside of first hollow pipe curved
Shape locating button.
A kind of concentric shafts collapse pipe, and further design is, are additionally provided on the arc-shaped hinge in end
Concave groove, the bending locating button are embedded in concave groove.
A kind of concentric shafts collapse pipe, and further design is, further include the single side wound on the outside of hinge cover board
Release film, the layer upper surface of single-sided parting film are away from the face of hinge cover board, and the non-layer upper surface of single-sided parting film is towards hinge lid
The face of plate.
A kind of concentric shafts collapse pipe, and further design is that the non-layer upper surface of the single-sided parting film passes through
Sticking double faced adhesive tape is on hinge cover board.
The invention has the benefit that the present invention is covered in matched production machine, by the first hollow pipe both ends
Extruding, the radius for tube expansion of giving becomes larger, and then collapses what crimping waste material was wrapped in that radius becomes larger on pipe；It is useless when removing crimping
When material, it is only necessary to unclamp the extruding to pipe both ends are collapsed, under the action of elastic webbing, the radius for collapsing pipe reverts to initial shape
Then state can smoothly remove crimping waste material to reach crimping waste material and collapse the separation of pipe.The crimping removed in this way is useless
After material is separated with machinery equipment, it ensure that the integrality of crimping waste material well, crimping waste material can be made to obtain as valuable as possible
Utilization, and this concentric shafts collapse pipe can use again and again, energy conservation and environmental protection, and collect crimping waste material in this way saves
Saving working hour improves work efficiency, and the use of also reduction blade perhaps scissors not will cause the damage of blade or scissors and lead
The waste cutter of cause.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be taken as to model
The restriction enclosed for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is in the present invention, and the concentric shafts of included second hollow pipe and Tapered Cup collapse the schematic perspective view of pipe, figure
In be not drawn into elastic webbing and bending locating button.
Fig. 2 is in the present invention, and the concentric shafts of included second hollow pipe and Tapered Cup collapse structural schematic diagram when pipe is faced.
Fig. 3 is to collapse structural schematic diagram when pipe is faced without the concentric shafts of the second hollow pipe and Tapered Cup in the present invention.
Fig. 4 is in the present invention, and the arc-shaped hinge in three pieces end forms schematic perspective view when the first hollow pipe closes up.
Fig. 5 is the stereochemical structure signal in the present invention, when the arc-shaped hinge in three pieces end forms the first hollow pipe and struts
Figure.
Fig. 6 is the stereochemical structure signal in the present invention, when the arc-shaped hinge in four ends forms the first hollow pipe and struts
Figure.
Fig. 7 is the stereochemical structure signal in the present invention, when the arc-shaped hinge in five ends forms the first hollow pipe and struts
Figure.
Fig. 8 is the structural representation that the arc-shaped hinge in four ends forms the first hollow pipe and faces when strutting in the present invention
Figure.
Fig. 9 is the structural schematic diagram of elastic webbing in the present invention.
Figure 10 is the structural schematic diagram of bending locating button in the present invention.
Figure 11 is in the present invention, and when the arc-shaped hinge of single end is fixedly connected with hinge cover board, and wound thereon has list
The schematic perspective view when release film of face.
In figure: the arc-shaped hinge in the end 1-；2- hinge cover board；3- elastic webbing；The second hollow pipe of 4-；5- Tapered Cup；6- is curved
Shape locating button；7- single-sided parting film.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.It should be noted that word "left", "right" used in the following description, "up" and "down" refer to the side in attached drawing
To word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.In addition, unless otherwise clear
Regulation and restriction, term " fixation ", " connection ", " set " etc. shall be understood in a broad sense, and come for those of ordinary skill in the art
It says, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Embodiment one
For the cutting slitting equipment without Tapered Cup and the second hollow pipe, refering to fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 9, figure
10, Figure 11, a kind of concentric shafts collapse pipe, including the arc-shaped hinge 1 in end, hinge cover board 2, elastic webbing 3, the second hollow pipe 4, empty
Heart Tapered Cup 5, bending locating button 6, single-sided parting film 7；The arc-shaped hinge 1 in end described in three pieces forms the first hollow pipe, the
Upper end, middle-end, the lower end of one hollow pipe are set there are three annular groove, and three round and elastic bands 3 are respectively embedded into three annular grooves,
Under the action of not by external force, the arc-shaped hinge 1 in three pieces end is synthesized the first hollow pipe by elastic webbing 3, in every end circular arc
Two concave grooves are set among two adjacent annular grooves on shape hinge 1, and it is arc-shaped that two concave grooves are located at every end
Bending locating button 6 is embedded in the concave groove on the arc-shaped hinge 1 in adjacent end, then every bit end by the left and right sides of hinge 1
The corresponding one piece of hinge cover board 2 of the arc-shaped hinge 1 in portion, the four of four respective vertices certain distances of distance on every hinge cover board 2
A position is each to make a call to a through-hole, is fixedly connected with the arc-shaped hinge 1 in end with hinge cover board 2 with screw, and elastic webbing 3 is by three pieces
A conical hollow part 5 is respectively placed at the both ends for the first hollow pipe that the arc-shaped hinge 1 in end synthesizes, and the second hollow pipe 4 passes through sky
Heart Tapered Cup 5 and with 5 clearance fit of conical hollow part, be uniformly that round position surrounding is beaten in the radius of each conical hollow part 5
There are symmetrical two tapped through holes, the second hollow pipe 4 is withstood by through-hole with bolt, makes the second hollow pipe 4 and conical hollow part 5
It is fixedly connected.
Refering to fig. 11, concentric shafts collapse pipe, further include having the single-sided parting film 7 for being wrapped in 2 outside of every hinge cover board, single
The layer upper surface of face release film 7 is away from the face of hinge cover board 2, and the non-layer upper surface of single-sided parting film 7 is towards hinge cover board 2
Face, and every single-sided parting film covers a piece of hinge cover board just and the arc-shaped hinge 1 in three pieces end is strutted maximized one
A gap.The non-layer upper surface of single-sided parting film 7 is bonded on hinge cover board 2 by double-sided adhesive.
When in use, the outside of every hinge cover board 2 is tied with single-sided parting film 7, it is release that crimping waste material is wrapped in single side
In the layer upper surface of film 7, the direct contact of crimping waste material and hinge cover board 2 is avoided, it can be very easily by crimping waste material and list
The layer upper surface of face release film 7 separates, and is detached from from single-sided parting film 7 convenient for crimping waste material.
The working principle of the invention is: when work, extruding by Tapered Cup to the arc-shaped hinge in end, hinge can be strutted
The bigger circle of radius is formed, due to there is the presence of bending locating button, hinge will not be strutted by unconfined, at this point, every
A piece of single-sided parting film is sticked on piece hinge cover board, crimping waste material is wrapped on single-sided parting film.It is useless when needing to remove crimping
When material, unclamp extruding of the Tapered Cup to the arc-shaped hinge in end, the arc-shaped hinge in three pieces end under the action of elastic webbing elastic force,
Original state is reverted to, at this point, crimping waste material and single-sided parting film separation, can easily take off crimping waste material from hinge cover board very much
From.
Embodiment two
For the cutting slitting equipment without Tapered Cup and the second hollow pipe, refering to fig. 1, Fig. 2, Fig. 6, Fig. 8, Fig. 9, figure
10, Figure 11, a kind of concentric shafts collapse pipe, including the arc-shaped hinge 1 in end, hinge cover board 2, elastic webbing 3, the second hollow pipe 4, empty
Heart Tapered Cup 5, bending locating button 6, single-sided parting film 7；The arc-shaped hinges 1 in four ends form the first hollow pipes, the
Upper end, middle-end, the lower end of one hollow pipe are set there are three annular groove, and three round and elastic bands 3 are respectively embedded into three annular grooves,
Under the action of not by external force, the arc-shaped hinge 1 in four ends is synthesized the first hollow pipe by elastic webbing 3, in every end circular arc
Two concave grooves are set among two adjacent annular grooves on shape hinge 1, and it is arc-shaped that two concave grooves are located at every end
Bending locating button 6 is embedded in the concave groove on the arc-shaped hinge 1 in adjacent end, then every bit end by the left and right sides of hinge 1
The corresponding one piece of hinge cover board 2 of the arc-shaped hinge 1 in portion, the four of four respective vertices certain distances of distance on every hinge cover board 2
A position is each to make a call to a through-hole, is fixedly connected with the arc-shaped hinge 1 in end with hinge cover board 2 with screw, elastic webbing 3 is by four
A conical hollow part 5 is respectively placed at the both ends for the first hollow pipe that the arc-shaped hinge 1 in end synthesizes, and the second hollow pipe 4 passes through sky
Heart Tapered Cup 5 and with 5 clearance fit of conical hollow part, be uniformly that round position surrounding is beaten in the radius of each conical hollow part 5
There are symmetrical two tapped through holes, the second hollow pipe 4 is withstood by through-hole with bolt, makes the second hollow pipe 4 and conical hollow part 5
It is fixedly connected.
Refering to fig. 11, concentric shafts collapse pipe, further include having the single-sided parting film 7 for being wrapped in 2 outside of every hinge cover board, single
The layer upper surface of face release film 7 is away from the face of hinge cover board 2, and the non-layer upper surface of single-sided parting film 7 is towards hinge cover board 2
Face, and every single-sided parting film covers a piece of hinge cover board just and the arc-shaped hinge 1 in four ends is strutted maximized one
A gap.The non-layer upper surface of single-sided parting film 7 is bonded on hinge cover board 2 by double-sided adhesive.
When in use, the outside of every hinge cover board 2 is tied with single-sided parting film 7, it is release that crimping waste material is wrapped in single side
In the layer upper surface of film 7, the direct contact of crimping waste material and hinge cover board 2 is avoided, it can be very easily by crimping waste material and list
The layer upper surface of face release film 7 separates, and is detached from from single-sided parting film 7 convenient for crimping waste material.
The working principle of the invention is: when work, extruding by Tapered Cup to the arc-shaped hinge in end, hinge can be strutted
The bigger circle of radius is formed, due to there is the presence of bending locating button, hinge will not be strutted by unconfined, at this point, every
A piece of single-sided parting film is sticked on piece hinge cover board, crimping waste material is wrapped on single-sided parting film.It is useless when needing to remove crimping
When material, unclamp extruding of the Tapered Cup to the arc-shaped hinge in end, four arc-shaped hinges in end under the action of elastic webbing elastic force,
Original state is reverted to, at this point, crimping waste material and single-sided parting film separation, can easily take off crimping waste material from hinge cover board very much
From.
Embodiment three
For the cutting slitting equipment without Tapered Cup and the second hollow pipe, refering to fig. 1, Fig. 2, Fig. 7, Fig. 9, Figure 10,
Figure 11, a kind of concentric shafts collapse pipe, including the arc-shaped hinge 1 in end, hinge cover board 2, elastic webbing 3, the second hollow pipe 4, hollow
Tapered Cup 5, bending locating button 6, single-sided parting film 7；Five arc-shaped hinges 1 in end form the first hollow pipe, first
Upper end, middle-end, the lower end of hollow pipe are set there are three annular groove, and three round and elastic bands 3 are respectively embedded into three annular grooves,
Not under the action of by external force, the arc-shaped hinge 1 in five ends is synthesized the first hollow pipe by elastic webbing 3, arc-shaped every end
Two concave grooves are set among two adjacent annular grooves on hinge 1, and two concave grooves are located at the arc-shaped conjunction in every end
The left and right sides of page 1, bending locating button 6 is embedded in the concave groove on the arc-shaped hinge 1 in adjacent end, then every end
The corresponding one piece of hinge cover board 2 of arc-shaped hinge 1, four of four respective vertices certain distances of distance on every hinge cover board 2
Position is each to make a call to a through-hole, is fixedly connected with the arc-shaped hinge 1 in end with hinge cover board 2 with screw, and elastic webbing 3 is by five bit ends
A conical hollow part 5 is respectively placed at the both ends for the first hollow pipe that the arc-shaped hinge 1 in portion synthesizes, and the second hollow pipe 4 passes through hollow
Tapered Cup 5 and with 5 clearance fit of conical hollow part, be uniformly that round position surrounding is equipped in the radius of each conical hollow part 5
Symmetrical two tapped through holes withstand the second hollow pipe 4 by through-hole with bolt, keep the second hollow pipe 4 and conical hollow part 5 solid
Fixed connection.
Refering to fig. 11, concentric shafts collapse pipe, further include having the single-sided parting film 7 for being wrapped in 2 outside of every hinge cover board, single
The layer upper surface of face release film 7 is away from the face of hinge cover board 2, and the non-layer upper surface of single-sided parting film 7 is towards hinge cover board 2
Face, and every single-sided parting film covers a piece of hinge cover board just and the arc-shaped hinge 1 in five ends is strutted maximized one
A gap.The non-layer upper surface of single-sided parting film 7 is bonded on hinge cover board 2 by double-sided adhesive.
When in use, the outside of every hinge cover board 2 is tied with single-sided parting film 7, it is release that crimping waste material is wrapped in single side
In the layer upper surface of film 7, the direct contact of crimping waste material and hinge cover board 2 is avoided, it can be very easily by crimping waste material and list
The separation of 7 layer upper surface of face release film, is detached from from single-sided parting film 7 convenient for crimping waste material.
The working principle of the invention is: when work, extruding by Tapered Cup to the arc-shaped hinge in end, hinge can be strutted
The bigger circle of radius is formed, due to there is the presence of bending locating button, hinge will not be strutted by unconfined, at this point, every
A piece of single-sided parting film is sticked on piece hinge cover board, crimping waste material is wrapped on single-sided parting film.It is useless when needing to remove crimping
When material, unclamp extruding of the Tapered Cup to the arc-shaped hinge in end, five arc-shaped hinges in end under the action of elastic webbing elastic force,
Original state is reverted to, at this point, crimping waste material and single-sided parting film separation, can easily take off crimping waste material from hinge cover board very much
From.
Example IV
For carrying the cutting slitting equipment of Tapered Cup and the second hollow pipe, refering to Fig. 3, Fig. 6, Fig. 8, Fig. 9, Figure 10, figure
11, a kind of concentric shafts collapse pipe, including the arc-shaped hinge 1 in end, hinge cover board 2, elastic webbing 3, bending locating button 6, single side from
Type film 7；Four arc-shaped hinges 1 in end form the first hollow pipe, are equipped in the upper end of the first hollow pipe, middle-end, lower end
Three round and elastic bands 3 are respectively embedded into three annular grooves by three annular grooves, and under the action of not by external force, elastic webbing 3 will
The arc-shaped hinge 1 in four ends synthesizes the first hollow pipe, on the arc-shaped hinge 1 in every end among two adjacent annular grooves
Two concave grooves are set, and two concave grooves are located at the left and right sides of the arc-shaped hinge 1 in every end, by bending locating button 6
It is embedded in the concave groove on the arc-shaped hinge 1 in adjacent end, then the corresponding one piece of hinge cover board of the arc-shaped hinge 1 in every end
2, four positions of four respective vertices certain distances of distance are each on every hinge cover board 2 makes a call to a through-hole, will with screw
The arc-shaped hinge 1 in end is fixedly connected with hinge cover board 2.
Refering to fig. 11, concentric shafts collapse pipe, further include having the single-sided parting film 7 for being wrapped in 2 outside of every hinge cover board, single
The layer upper surface of face release film 7 is away from the face of hinge cover board 2, and the non-layer upper surface of single-sided parting film 7 is towards hinge cover board 2
Face, and every single-sided parting film covers a piece of hinge cover board just and the arc-shaped hinge 1 in four ends is strutted maximized one
A gap.The non-layer upper surface of single-sided parting film 7 is bonded on hinge cover board 2 by double-sided adhesive.
When in use, the outside of every hinge cover board 2 is tied with single-sided parting film 7, it is release that crimping waste material is wrapped in single side
In the layer upper surface of film 7, the direct contact of crimping waste material and hinge cover board 2 is avoided, it can be very easily by crimping waste material and list
The separation of 7 layer upper surface of face release film, is detached from from single-sided parting film 7 convenient for crimping waste material.
The working principle of the invention is: arc-shaped to end by the Tapered Cup carried in cutting slitting equipment when work
The extruding of hinge, hinge can strut to form the bigger circle of radius, and due to there is the presence of bending locating button, hinge will not be by nothing
Strutting for limitation, at this point, sticking a piece of single-sided parting film on every hinge cover board, is wrapped in single-sided parting film for crimping waste material
On.When needing to remove crimping waste material, extruding of the Tapered Cup to the arc-shaped hinge in end is unclamped, four arc-shaped hinges in end exist
Under the action of elastic webbing elastic force, original state is reverted to, at this point, crimping waste material and single-sided parting film separation, will can easily roll up very much
Leftover bits and pieces of material is detached from from hinge cover board.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (8)
1. a kind of concentric shafts collapse pipe, it is characterised in that: first including being made of at least arc-shaped hinge in three pieces end (1) is empty
Heart pipe, hinge cover board (2), elastic webbing (3), the adjacent arc-shaped hinge in the end (1) are flexibly connected, the hinge cover board
(2) it is located on the outside of the arc-shaped hinge in end (1), the hinge cover board (2) is fixedly connected with the arc-shaped hinge in end (1), described
Elastic webbing (3) covers in the outside of the first hollow pipe, and the elastic webbing (3) is between the first hollow pipe and hinge cover board (2).
2. a kind of concentric shafts according to claim 1 collapse pipe, it is characterised in that: the inside of first hollow pipe is arranged
Have the second hollow pipe (4), and the second hollow pipe (4) pipe range more hollow than first.
3. a kind of concentric shafts according to claim 2 collapse pipe, it is characterised in that: respectively put at the both ends of first hollow pipe
It is equipped with a conical hollow part (5), which covers on second hollow pipe (4), and conical hollow part (5)
It is fixedly connected with the second hollow pipe (4).
4. a kind of concentric shafts according to claim 1 collapse pipe, it is characterised in that: the first hollow pipe outer wall is also set up
There are at least two annular grooves, the elastic webbing (3) is embedded in annular groove.
5. a kind of concentric shafts according to claim 1 collapse pipe, it is characterised in that: also set up on the outside of first hollow pipe
There are bending locating button (6).
6. a kind of concentric shafts collapse pipe according to claim 1 or 5, it is characterised in that: the arc-shaped hinge in end (1)
On be additionally provided with concave groove, in bending locating button (6) the insertion concave groove.
7. a kind of concentric shafts according to claim 1 collapse pipe, it is characterised in that: further include winding hinge cover board (2) outside
The single-sided parting film (7) of side, the layer upper surface of single-sided parting film (7) be away from the face of hinge cover board (2), single-sided parting film (7)
Non- layer upper surface is the face towards hinge cover board (2).
8. a kind of concentric shafts according to claim 7 collapse pipe, it is characterised in that: the single-sided parting film (7) it is non-from
Type face is by sticking double faced adhesive tape on hinge cover board (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811081928.1A CN109230885A (en) | 2018-09-17 | 2018-09-17 | A kind of concentric shafts collapse pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081928.1A CN109230885A (en) | 2018-09-17 | 2018-09-17 | A kind of concentric shafts collapse pipe |
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| CN109230885A true CN109230885A (en) | 2019-01-18 |
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| CN109775469A (en) * | 2019-02-28 | 2019-05-21 | 薛厚章 | A kind of flexible material returned pipe |
| CN110712944A (en) * | 2019-09-20 | 2020-01-21 | 山西晋城无烟煤矿业集团有限责任公司 | Detachable conveying belt winding shaft |
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| CN110712944A (en) * | 2019-09-20 | 2020-01-21 | 山西晋城无烟煤矿业集团有限责任公司 | Detachable conveying belt winding shaft |
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