CN204062216U - A kind of spheroidal graphite cast iron push pipe - Google Patents
A kind of spheroidal graphite cast iron push pipe Download PDFInfo
- Publication number
- CN204062216U CN204062216U CN201420473523.3U CN201420473523U CN204062216U CN 204062216 U CN204062216 U CN 204062216U CN 201420473523 U CN201420473523 U CN 201420473523U CN 204062216 U CN204062216 U CN 204062216U
- Authority
- CN
- China
- Prior art keywords
- cast iron
- spheroidal graphite
- graphite cast
- tube body
- push pipe
- 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.)
- Expired - Fee Related
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Abstract
A kind of spheroidal graphite cast iron push pipe, comprises the surrounding layer that the spheroidal graphite cast iron tube body with bellmouth and socket, the pushing tow flange being fixed on close socket end on ductile iron pipe body outer wall and the ductile iron pipe body outer wall be coated between pushing tow flange and bellmouth make its entire body diameter consistent; Described surrounding layer includes concrete layer and is embedded in the steel hoop frame in concrete layer, described surrounding layer also includes several fixed blocks perpendicular to ductile iron pipe body outer wall, and described reinforced frame is fixed on the outer wall of spheroidal graphite cast iron tube body by fixed block.By arranging fixed block between reinforced frame and spheroidal graphite cast iron tube body, reinforced frame is fixed on spheroidal graphite cast iron tube body, effectively avoid reinforced frame and produce displacement, strengthen the intensity of spheroidal graphite cast iron push pipe entirety, solve because reinforced frame moves to the problem producing defective products outside spheroidal graphite cast iron push pipe, improve the bulk strength uniformity of spheroidal graphite cast iron push pipe simultaneously.
Description
Technical field
The utility model relates to a kind of spheroidal graphite cast iron push pipe, particularly spheroidal graphite cast iron tubulation field.
Background technique
It is all generally adopt excavation type construction that ductile cast iron pipeline is laid.Along with people require more and more higher to job site, especially when pipeline needs highway crossing, railway, bridge, high mountain, river and above ground structure, excavation type cannot be adopted to construct, just must need to adopt pipe-jacking technology to construct.
Common ductile iron pipe just can not can not meet jacking construction and require that, just need a kind of spheroidal graphite cast iron push pipe, there is following defect in spheroidal graphite cast iron push pipe of the prior art: 1. the intensity of spheroidal graphite cast iron push pipe is less, in the process of jacking construction, often causing spheroidal graphite cast iron push pipe to burst apart 2, in spheroidal graphite cast iron push pipe surrounding layer filling process, easily make the wire netting of its inside produce mobile, cause wire netting irregular layout in surrounding layer, can cause that produced spheroidal graphite cast iron push pipe intensity is extremely uneven even to be caused wire netting to be projected into spheroidal graphite cast iron push pipe outer surface causing defective products like this.
Model utility content
The technical problems to be solved in the utility model is: provide a kind of compressive strength large and the spheroidal graphite cast iron push pipe of even intensity, thus enable spheroidal graphite cast iron push pipe bear stronger jacking force.
Solve the problem producing defective products due to the movement of wire netting in spheroidal graphite cast iron push pipe filling process simultaneously.
For solving the problems of the technologies described above, a kind of spheroidal graphite cast iron of the utility model push pipe comprises the surrounding layer that the spheroidal graphite cast iron tube body with bellmouth and socket, the pushing tow flange being fixed on close socket end on ductile iron pipe body outer wall and the ductile iron pipe body outer wall be coated between pushing tow flange and bellmouth make its entire body diameter consistent; Described surrounding layer includes concrete layer and is embedded in the steel hoop frame in concrete layer, it is characterized in that: described surrounding layer also includes several fixed blocks perpendicular to ductile iron pipe body outer wall, and described reinforced frame is fixed on the outer wall of spheroidal graphite cast iron tube body by fixed block.
By arranging fixed block between reinforced frame and spheroidal graphite cast iron tube body, reinforced frame being fixed on spheroidal graphite cast iron tube body, making its regular arrangement and synthesizing an entirety with ductile iron pipe bulk junction.This structure effectively can strengthen the intensity of spheroidal graphite cast iron push pipe entirety; Prevent reinforced frame to produce mobile simultaneously, solve because reinforced frame moves to the problem producing defective products outside spheroidal graphite cast iron push pipe, improve the bulk strength uniformity of spheroidal graphite cast iron push pipe simultaneously.
As further improvement of the utility model, the level height of described fixed block is identical.By such a construction ensures reinforced frame and namely spheroidal graphite cast iron tube body coaxial line ensure that the gap between them is identical, thus further increase the uniformity of spheroidal graphite cast iron push pipe bulk strength.
As further improvement of the utility model, described fixed block is uniformly distributed N group on the axial direction of spheroidal graphite cast iron tube body, each group comprises at least 4 fixed blocks and described fixed block is uniformly distributed around spheroidal graphite cast iron tube body, and N is the natural number of 1-100.Reasonably arrange the group number of fixed block according to the length of spheroidal graphite cast iron tube body, the bulk strength strengthening spheroidal graphite cast iron push pipe further can be applicable to the spheroidal graphite cast iron tube body of different size length simultaneously.This structure in turn ensure that often organizing fixed block is uniformly distributed around spheroidal graphite cast iron tube body, also ensure that the uniformity of intensity while improving bulk strength simultaneously.
Improve as another kind of the present utility model, described reinforced frame is equipped with wire netting.The intensity of further increase spheroidal graphite cast iron push pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
In figure: 1, protruding, 2, socket, 3, bellmouth, 4, reinforced frame, 5, fixed block, 6, concrete layer, 7, positioning ring, 8, location gusset, 9, pushing tow flange, 10, spheroidal graphite cast iron tube body, 11, surrounding layer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 shows a kind of mode of execution of the utility model spheroidal graphite cast iron push pipe.As shown in Figure 1, whole spheroidal graphite cast iron push pipe comprises spheroidal graphite cast iron tube body 10, is fixed on the pushing tow flange 9 on spheroidal graphite cast iron tube body 10 outer wall and is coated on the surrounding layer 11 that spheroidal graphite cast iron tube body 10 outer wall makes its entire body diameter consistent; As shown in Figure 1, spheroidal graphite cast iron tube body 10 is arranged respectively bellmouth 3 and socket 2, described bellmouth 3 has the projection 1 of annular.As shown in Figure 1, pushing tow flange 9 is arranged on the position of spheroidal graphite cast iron tube body 10 near socket 2, and described pushing tow flange 9 has coordinated the effect of pushing tow with protruding 1.Also be provided with the positioning ring 7 of annular in the left side of pushing tow flange 9, between described positioning ring 7 and pushing tow flange 9, be provided with location gusset 8.Described location gusset 8 is welded to connect with positioning ring 7 and pushing tow flange 9 respectively.As shown in Figure 1, surrounding layer 11, except having concrete layer 6, also has the reinforced frame 4 be clipped in concrete, and described reinforced frame 4 is freely present in concrete layer 6.Above-described is the structure of the spheroidal graphite cast iron push pipe of prior art.Spheroidal graphite cast iron push pipe of the present utility model, is provided with fixed block 5 between reinforced frame 4 and spheroidal graphite cast iron tube body 10, and reinforced frame 4 is fixed on spheroidal graphite cast iron tube body 10 by described fixed block 5.Described fixed block 5 is cuboid iron block and highly identical in the horizontal direction, and fixed block 5 is vertically welded on spheroidal graphite cast iron tube body 10 by mutually level direction.Again reinforced frame 4 is welded on fixed block 5 around spheroidal graphite cast iron tube body 10.Such a construction ensures reinforced frame 4 and the same axis of spheroidal graphite cast iron tube body 10 of annular, namely ensure that reinforced frame 4 is identical with the annular space of spheroidal graphite cast iron tube body 10.As shown in Figure 1, in the utility model spheroidal graphite cast iron push pipe, fixed block 5 arranges 2 groups on the axial direction of spheroidal graphite cast iron tube body 10, and each group is made up of 4 pieces of fixed blocks 5, and the fixed block 5 of each group is evenly arranged around spheroidal graphite cast iron tube body 10.In the utility model, by reasonably arranging fixed block 5, reinforced frame 4 is effectively fixed on spheroidal graphite cast iron tube body 10, effectively avoid the raw displacement of reinforced frame 5, thus solve the problem of the uneven and easy generation defective products of intensity produced in the movement of concrete layer 6 due to reinforced frame 5, further enhancing the bulk strength of spheroidal graphite cast iron push pipe.By arranging many group fixed blocks 5 and ensure that the horizontal length of fixed block 5 is identical on spheroidal graphite cast iron tube body 10 axial direction, another step improves the intensity of the entirety of spheroidal graphite cast iron push pipe, ensure that the uniformity of intensity simultaneously.At the same time, the fixing upper wire netting in surface of reinforced frame 4, further enhancing again the bulk strength of spheroidal graphite cast iron push pipe.
It should be noted that, in the present embodiment, the quantity of fixed block 5 is most preferred mode of execution with group number, but the utility model is not limited to above-mentioned mode of execution.In the ken that those of ordinary skill in the art has, many variations can also be made to it.
Claims (4)
1. a spheroidal graphite cast iron push pipe, comprise there is bellmouth (3) and socket (2) spheroidal graphite cast iron tube body (10), be fixed on pushing tow flange (9) that spheroidal graphite cast iron tube body (10) outer wall is held near socket (2) and be coated on the surrounding layer (11) that spheroidal graphite cast iron tube body (10) outer wall between pushing tow flange (9) and bellmouth (3) makes its entire body diameter consistent; Described surrounding layer (11) includes concrete layer (6) and is embedded in the steel hoop frame (4) in concrete layer (6), it is characterized in that: described surrounding layer (11) also includes several fixed blocks (5) perpendicular to spheroidal graphite cast iron tube body (10) outer wall, and described reinforced frame (4) is fixed on the outer wall of spheroidal graphite cast iron tube body (10) by fixed block (5).
2. spheroidal graphite cast iron push pipe according to claim 1, is characterized in that: the level height of described fixed block (5) is identical.
3. spheroidal graphite cast iron push pipe according to claim 1 and 2, it is characterized in that: described fixed block (5) is uniformly distributed N group on the axial direction of spheroidal graphite cast iron tube body (10), each group comprises at least 4 fixed blocks (5) and described fixed block (5) is uniformly distributed around spheroidal graphite cast iron tube body (10), and N is the natural number of 1-100.
4. spheroidal graphite cast iron push pipe according to claim 1, is characterized in that: described reinforced frame (4) is equipped with wire netting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473523.3U CN204062216U (en) | 2014-08-21 | 2014-08-21 | A kind of spheroidal graphite cast iron push pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473523.3U CN204062216U (en) | 2014-08-21 | 2014-08-21 | A kind of spheroidal graphite cast iron push pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062216U true CN204062216U (en) | 2014-12-31 |
Family
ID=52203728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420473523.3U Expired - Fee Related CN204062216U (en) | 2014-08-21 | 2014-08-21 | A kind of spheroidal graphite cast iron push pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197118A (en) * | 2014-08-21 | 2014-12-10 | 山东球墨铸铁管有限公司 | Nodular cast iron top tube |
-
2014
- 2014-08-21 CN CN201420473523.3U patent/CN204062216U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197118A (en) * | 2014-08-21 | 2014-12-10 | 山东球墨铸铁管有限公司 | Nodular cast iron top tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160821 |