CN108425538A - A kind of ladder-like taper ductile iron pipe and tower bar - Google Patents
A kind of ladder-like taper ductile iron pipe and tower bar Download PDFInfo
- Publication number
- CN108425538A CN108425538A CN201810245670.8A CN201810245670A CN108425538A CN 108425538 A CN108425538 A CN 108425538A CN 201810245670 A CN201810245670 A CN 201810245670A CN 108425538 A CN108425538 A CN 108425538A
- Authority
- CN
- China
- Prior art keywords
- ladder
- section
- taper
- iron pipe
- ductile iron
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
Abstract
The invention discloses a kind of ladder-like taper ductile iron pipes, it is characterised in that：The ladder-like taper ductile iron pipe is in middle empty class taper type, includes the bellmouth section positioned at its big end, the receptacle section positioned at its small end and the centre portion between the bellmouth section and the receptacle section；The centre portion is in ladder shaft-like.Compared with tapered ductile iron pipe, the cost of manufacture of ladder-like taper ductile iron pipe of the invention is greatly lowered, and has popularizing value.
Description
Technical field
The present invention relates to a kind of ladder-like taper ductile iron pipe and tower bars, stringing or load bearing equipment are used for, such as electric pole, lamp
Bar, line holder etc..
Background technology
Currently, tapered ductile iron pipe produces tapered ductile iron pipe in shaft towers field extensive uses such as transmission of electricity system circuits
The mold used is open circles stage body, and the manufacture emphasis of this mold is interior hole machined, i.e. deep hole machining, and internal via shape is taper
Face, i.e. inclined-plane, processing it is more difficult, need special machining equipment, die manufacturing cost is higher, therefore tapered ductile iron pipe at
This is also higher.This is tapered ductile iron pipe producer problem in the urgent need to address.
Invention content
According to technical problem set forth above, in order to reduce the manufacturing cost of tower bar, the present invention proposes a kind of ladder-like
Taper ductile iron pipe and tower bar, the structure by changing ductile iron pipe reduce cost to change mould structure.This hair
The technological means of bright use is as follows：
A kind of ladder-like taper ductile iron pipe, the ladder-like taper ductile iron pipe are in middle empty class taper type, including
Bellmouth section positioned at its big end, the receptacle section positioned at its small end and positioned at the bellmouth section and the receptacle section it
Between centre portion；
The centre portion is in ladder shaft-like.
The semidiameter of adjacent steps section is a1 in the centre portion, and the axial length of each ladder section is b1, wherein a1
=0.7-1.0mm, b1=90-120mm.
The total length of the ladder-like taper ductile iron pipe is L, and the length of the bellmouth section is a, the middle area
The length of section is b, and the length of the receptacle section is c, L=a+b+c, wherein L=5300-6700mm, a=500-900mm, c
=500-900mm.
The invention also discloses a kind of tower bars, including a section pipeline section or the pipeline section of more piece grafting, and the pipeline section is above-mentioned institute
The ladder-like taper ductile iron pipe stated.
Existing tapered outer surface of nodular cast iron pipe is in smooth taper face, and corresponding mould inner surface is also taper surface,
It is relatively difficult using deep hole machining one-pass molding, cost is higher.
The present invention ladder-like taper ductile iron pipe receptacle section outer surface and bellmouth section outer surface be taper surface,
Centre portion is in ladder shaft-like, and the length of receptacle section and bellmouth section is shorter and closer apart from end face, it is easy to be processed into cone
Shape face；And centre portion is since length is longer, and farther out apart from end face, if it is extremely difficult to be processed into taper surface, if processing
It at ladder shaft-like, can be easier, device therefor and processing technology are also relatively easy, and die cost can also reduce, and be produced with it
The manufacturing cost of ladder-like taper ductile iron pipe can also reduce.
The present invention can be widely popularized in fields such as ductile iron pipes based on the above reasons.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 be the present invention specific implementation mode in ladder-like taper ductile iron pipe structural schematic diagram.
Fig. 2 is the portions A enlarged diagram in Fig. 1.
Fig. 3 be the present invention specific implementation mode in tower bar structural schematic diagram
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1-Figure 3, a kind of tower bar includes the first pipeline section 1 and the second pipeline section 2 of two section grafting, first pipe
Section 1 is located at the top of second pipeline section 2, and first pipeline section 1 and second pipeline section 2 are ladder-like taper spheroidal graphite cast-iron
Pipe, the ladder-like taper ductile iron pipe are in middle empty class taper type, taper 15.8:1000；
First pipeline section 1 includes the first bellmouth section 11 positioned at its big end, the first receptacle section positioned at its small end
12 and the first centre portion 13 between the first bellmouth section 11 and first receptacle section 12；
Second pipeline section 2 includes the second bellmouth section 21 positioned at its big end, the second receptacle section positioned at its small end
22 and the second centre portion 23 between the second bellmouth section 21 and second receptacle section 22.
The socket end outer diameter of first pipeline section 1 is 150mm, and female end outer diameter is 248mm, the length of first pipeline section 1
Degree is 6200mm, and the length of wall thickness 6mm, first receptacle section 12 are 800mm, the length in 11 sections of first bellmouth area
For 900mm, the centre portion 13 is in ladder shaft-like, length 4500mm, totally 45 grades of steps, the axial length of each ladder section
Semidiameter for 100mm, adjacent steps section is 0.8mm；
The socket end outer diameter of second pipeline section 2 is 230mm, and female end outer diameter is 328mm, the length of second pipeline section 2
Degree is 6200mm, and the length of wall thickness 6.5mm, second receptacle section 22 are 900mm, the length of the second bellmouth section 21
Degree is 900mm, and the centre portion 23 is in ladder shaft-like, and length 4400mm, totally 44 grades of steps, the axial direction of each ladder section are long
Degree is 100mm, and the semidiameter of adjacent steps section is 0.8mm；
The inserting depth of first pipeline section 1 and second pipeline section 2 is 400mm, and the length of the tower bar is 12m.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of ladder-like taper ductile iron pipe, it is characterised in that：The ladder-like taper ductile iron pipe is bored in middle empty class
Platform shape includes the bellmouth section positioned at its big end, the receptacle section positioned at its small end and positioned at the bellmouth section and described
Centre portion between receptacle section；
The centre portion is in ladder shaft-like.
2. ladder-like taper ductile iron pipe according to claim 1, it is characterised in that：Adjacent rank in the centre portion
The semidiameter of bench is a1, and the axial length of each ladder section is b1, wherein a1=0.7-1.0mm, b1=90-120mm.
3. ladder-like taper ductile iron pipe according to claim 1, it is characterised in that：The ladder-like taper spheroidal graphite casting
The total length of iron pipe is L, and the length of the bellmouth section is a, and the length of the centre portion is b, the length of the receptacle section
Degree is c, L=a+b+c, wherein L=5300-6700mm, a=500-900mm, c=500-900mm.
4. a kind of tower bar, which is characterized in that the pipeline section including a section pipeline section or more piece grafting, the pipeline section are claim 1-3
Ladder-like taper ductile iron pipe described in any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245670.8A CN108425538B (en) | 2018-03-23 | 2018-03-23 | Stepped conical nodular cast iron pipe and tower pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245670.8A CN108425538B (en) | 2018-03-23 | 2018-03-23 | Stepped conical nodular cast iron pipe and tower pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108425538A true CN108425538A (en) | 2018-08-21 |
| CN108425538B CN108425538B (en) | 2021-03-30 |
Family
ID=63158992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245670.8A Active CN108425538B (en) | 2018-03-23 | 2018-03-23 | Stepped conical nodular cast iron pipe and tower pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425538B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094473A (en) * | 1993-11-10 | 1994-11-02 | 上海异型钢管股份有限公司 | Drawing method for metal conic tube of integrated road lamp pole |
| CN2240009Y (en) * | 1995-04-13 | 1996-11-13 | 邓晓曦 | Concrete-jacketing steel pipe tower |
| CN203463804U (en) * | 2013-08-28 | 2014-03-05 | 于佩 | Conical nodular cast iron pipe |
| US9475153B2 (en) * | 2010-01-25 | 2016-10-25 | Keystone Tower Systems, Inc. | Tapered spiral welded structure |
| CN106984788A (en) * | 2017-02-10 | 2017-07-28 | 上海大学 | The apparatus and method that mould, die assembly with ladder-type structure die cavity, high flux prepare wide cooling rate scope sample |
-
2018
- 2018-03-23 CN CN201810245670.8A patent/CN108425538B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094473A (en) * | 1993-11-10 | 1994-11-02 | 上海异型钢管股份有限公司 | Drawing method for metal conic tube of integrated road lamp pole |
| CN2240009Y (en) * | 1995-04-13 | 1996-11-13 | 邓晓曦 | Concrete-jacketing steel pipe tower |
| US9475153B2 (en) * | 2010-01-25 | 2016-10-25 | Keystone Tower Systems, Inc. | Tapered spiral welded structure |
| CN203463804U (en) * | 2013-08-28 | 2014-03-05 | 于佩 | Conical nodular cast iron pipe |
| CN106984788A (en) * | 2017-02-10 | 2017-07-28 | 上海大学 | The apparatus and method that mould, die assembly with ladder-type structure die cavity, high flux prepare wide cooling rate scope sample |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108425538B (en) | 2021-03-30 |
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