CN205938213U - A nodular cast -iron pipe for pushing up advance construction - Google Patents
A nodular cast -iron pipe for pushing up advance construction Download PDFInfo
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- CN205938213U CN205938213U CN201620907433.XU CN201620907433U CN205938213U CN 205938213 U CN205938213 U CN 205938213U CN 201620907433 U CN201620907433 U CN 201620907433U CN 205938213 U CN205938213 U CN 205938213U
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- iron pipe
- cylinder
- ductile iron
- pushing
- jacking construction
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Abstract
The utility model provides a nodular cast -iron pipe for pushing up advance construction, includes the nodular cast -iron pipe body, nodular cast -iron pipe body one end is the bellmouth, the other end is the socket, be close to on the nodular cast -iron pipe body the one end outer wall of socket is fixed with stopping ring and pusher structure, the pusher constructs including barrel and top pushing manipulation bluely, top pushing manipulation orchid, barrel and stopping ring are by setting gradually in the extroversion, barrel, the closely laminating of stopping ring. A nodular cast -iron pipe for pushing up advance construction which production efficiency improves greatly, and manufacturing cost reduces, the reliability improves. The utility model discloses a nodular cast -iron pipe for pushing up advance construction, its production efficiency improves greatly, and manufacturing cost reduces, the reliability improves.
Description
Technical field
This utility model is related to a kind of cast tube, in particulars relate to a kind of spigot-and-socket ductile iron pipe.
Background technology
Spigot-and-socket ductile iron pipe has that mechanical property is good, interface reliability is high, corrosion resistance and good, long service life etc.
Advantage, is widely used in the industrial departments such as urban construction water delivery and gas transmission, but the laying of traditional spigot-and-socket ductile iron pipe needs to excavate
Groove.With the extensive development of urban construction, people propose higher requirement to living environment, the laying of some pipelines need through
Cross densely populated area, excavate groove not in ground, or due to being limited by execution conditions, such as need crossing highway, railway,
River or above ground structure etc. it is impossible in ground ditching and laying pipeline, construct for convenience, current digging-free pipe jacking construction
Method has become as the Main Means of urban duct construction.Existing ductile iron pipe push pipe is in order to overcome the bell socket can not
Bear jacking force and the inconsistent shortcoming of pipe external diameter is all utilized in socket end welding pushing tow flange and gusset and pipe outsourcing mixes
Solidifying soil realizes bearing, transmit that jacking force is consistent with pipe external diameter to reach the purpose being easy to pushing tow operation.But due to spheroidal graphite cast-iron
Solderability is poor and gusset and flange are difficult to realize automatic welding, improves productivity ratio and the cost of ductile iron pipe push pipe, limits
The use of spigot-and-socket ductile iron pipe push pipe.
Utility model content
The purpose of this utility model is to provide a kind of ductile iron pipe for jacking construction, and its production efficiency carries significantly
Height, production cost reduces, reliability improves.
To achieve these goals, technical solution of the present utility model is：A kind of spheroidal graphite casting for jacking construction
Iron pipe, including spheroidal graphite cast-iron tube body, spheroidal graphite cast-iron tube body one end is bellmouth, the other end is socket, described ductile iron pipe
On body, one end outer wall near described socket is fixed with retaining ring and top-pushing mechanism, and described top-pushing mechanism includes cylinder and pushing tow
Flange, described pushing tow flange, cylinder and retaining ring set gradually from outside to inside, and described cylinder, retaining ring fit tightly.
This utility model is used for the ductile iron pipe of jacking construction, and wherein, described top-pushing mechanism is by cylinder and pushing tow flange
Pre-welding forms.
This utility model is used for the ductile iron pipe of jacking construction, and wherein, described cylinder and pushing tow flange are by carbon steel system
Become.
This utility model is used for the ductile iron pipe of jacking construction, wherein, described cylinder and described spheroidal graphite cast-iron tube body
Interference fit.
This utility model is used for the ductile iron pipe of jacking construction, wherein, constitutes cylinder and the pushing tow of described top-pushing mechanism
Flange is split type, and described cylinder includes two and half cylinders, the mutual butt welding of described two half cylinder.
This utility model is used for the ductile iron pipe of jacking construction, and wherein, described top-pushing mechanism also includes at least three pieces muscle
Plate, described each gusset is all welded between described cylinder and pushing tow flange, and described each gusset is along described cylinder and pushing tow flange
Circumference is uniform.
This utility model is used for the ductile iron pipe of jacking construction, and wherein, described ductile iron pipe body outer wall is from described
Bellmouth end face is all coated with concrete layer to described pushing tow end face of flange, described concrete layer various location external diameter phase
With.
This utility model is used for the ductile iron pipe of jacking construction, wherein, accompanies bar-mat reinforcement in described concrete layer.
This utility model is used for the ductile iron pipe of jacking construction, and wherein, described cylinder and described retaining ring are welded to each other.
After such scheme, compared with prior art because this utility model is used for outside the ductile iron pipe of jacking construction
Wall arranges top-pushing mechanism, and the cylinder of top-pushing mechanism, pushing tow flange can be using the preferable materials of welding performance beyond spheroidal graphite cast-iron
Material makes, and such as carbon steel material thus can avoid, using Ni-based electrode for cast iron, both having saved substantial amounts of Master Cost, and
Improve the reliability of welding, and socket end due to only need on spheroidal graphite cast-iron tube body the single retaining ring of built-up welding shape,
Conveniently adopt automatic welding, not only improve production efficiency but also decreased bonding area, greatly reduced production cost, improve product
Reliability.
Brief description
Fig. 1 is the structural representation of the ductile iron pipe that this utility model is used for jacking construction；
Fig. 2 is the front sectional view that this utility model is used for the top-pushing mechanism in the ductile iron pipe of jacking construction；
Fig. 3 is the left view that this utility model is used for the top-pushing mechanism in the ductile iron pipe of jacking construction.
Specific embodiment
As shown in figure 1, the ductile iron pipe that this utility model is used for jacking construction includes spheroidal graphite cast-iron tube body 11, spheroidal graphite
Cast iron tube body 11 one end is bellmouth 111, the other end is socket 112, near one end of socket 112 on spheroidal graphite cast-iron tube body 11
Outer wall is fixed with retaining ring 12 and top-pushing mechanism 13, and as shown in Figure 2,3, top-pushing mechanism 13 includes cylinder 131 and pushing tow flange
132, pushing tow flange 132, cylinder 131 and retaining ring 12 set gradually from outside to inside, and cylinder 131, retaining ring 12 fit tightly.
Top-pushing mechanism 13 also includes at least three pieces gussets 133, constitutes the cylinder 131 of top-pushing mechanism 13, pushing tow flange 132 can
Think split type, cylinder 131 includes two halves cylinder, be respectively arranged in during use on spheroidal graphite cast-iron tube body 11, and by two halves cylinder
The mutual butt welding of body phase, then be welded as a whole with pushing tow flange 132, cylinder 131 and pushing tow flange 132 can be using carbon steels or other are easy
The material of welding is made, and each gusset 133 is all welded between cylinder 131 and pushing tow flange 132, and each gusset 133 is along cylinder
131 and pushing tow flange 132 circumference uniform, top-pushing mechanism adopts the materials such as carbon steel, it is to avoid using expensive electrode for cast iron, both
Improve welding performance, greatly reduce manufacturing cost again.
Constitute the cylinder 131 of top-pushing mechanism 13, pushing tow flange 132 can shift to an earlier date and is made as monoblock type in advance, prefabricated pushing tow in advance
Mechanism 13, thus substantially increases the production efficiency of push pipe, and cylinder 131 and spheroidal graphite cast-iron tube body 11 can pass through interference fit
Interfix and also can be welded to each other, and cylinder 131 and retaining ring 12 end are welded to each other.
Spheroidal graphite cast-iron tube body 11 outer wall from bellmouth 111 end face to pushing tow flange 132 end face between be all coated with concrete
Layer 14, concrete layer 14 various location external diameter is identical, accompanies bar-mat reinforcement 15 in concrete layer 14；Due to arranging concrete layer 14
And concrete layer 14 various location external diameter is identical, during jacking construction, pushing tow is more convenient, and effectively shortens construction period, and reduction is applied
Work cost, simultaneously the concrete layer of outer layer can protect spigot-and-socket spheroidal graphite cast-iron tube body, increase the service life.
Embodiment described above is only that preferred implementation of the present utility model is described, not new to this practicality
The scope of type is defined, on the premise of without departing from this utility model design spirit, this area ordinary skill technical staff couple
Various modifications and improvement that the technical solution of the utility model is made, all should fall into what claims of the present utility model determined
In protection domain.
Claims (9)
1. a kind of ductile iron pipe for jacking construction, including spheroidal graphite cast-iron tube body (11), spheroidal graphite cast-iron tube body (11)
One end be bellmouth (111), the other end be socket (112) it is characterised in that：Described spheroidal graphite cast-iron tube body (11) is upper close described
One end outer wall of socket (112) is fixed with retaining ring (12) and top-pushing mechanism (13), and described top-pushing mechanism (13) includes cylinder
(131) and pushing tow flange (132), described pushing tow flange (132), cylinder (131) and retaining ring (12) set gradually from outside to inside,
Described cylinder (131), retaining ring (12) fit tightly.
2. the ductile iron pipe for jacking construction according to claim 1 it is characterised in that：Described top-pushing mechanism (13)
Formed by cylinder (131) and pushing tow flange (132) pre-welding.
3. the ductile iron pipe for jacking construction according to claim 2 it is characterised in that：Described cylinder (131) and
Pushing tow flange (132) is made by carbon steel.
4. the ductile iron pipe for jacking construction according to claim 3 it is characterised in that：Described cylinder (131) and
Described spheroidal graphite cast-iron tube body (11) interference fit.
5. the ductile iron pipe for jacking construction according to claim 1 it is characterised in that：Constitute described top-pushing mechanism
(13) cylinder (131) and pushing tow flange (132) they are split type, described cylinder (131) inclusion two and half cylinders, described two half
The mutual butt welding of cylinder.
6. the ductile iron pipe for jacking construction according to claim 4 or 5 it is characterised in that：Described top-pushing mechanism
(13) at least three pieces gussets (133) are also included, described each gusset (133) is all welded in described cylinder (131) and pushing tow flange
(132), between, described each gusset (133) is uniform along the circumference of described cylinder (131) and pushing tow flange (132).
7. the ductile iron pipe for jacking construction according to claim 6 it is characterised in that：Described ductile iron pipe is originally
Body (11) outer wall is all coated with concrete layer (14) between described bellmouth (111) end face extremely described pushing tow flange (132) end face,
Described concrete layer (14) various location external diameter is identical.
8. the ductile iron pipe for jacking construction according to claim 7 it is characterised in that：Described concrete layer (14)
Inside accompany bar-mat reinforcement (15).
9. the ductile iron pipe for jacking construction according to claim 8 it is characterised in that：Described cylinder (131) and
Described retaining ring (12) is welded to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907433.XU CN205938213U (en) | 2016-08-18 | 2016-08-18 | A nodular cast -iron pipe for pushing up advance construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907433.XU CN205938213U (en) | 2016-08-18 | 2016-08-18 | A nodular cast -iron pipe for pushing up advance construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205938213U true CN205938213U (en) | 2017-02-08 |
Family
ID=57947061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620907433.XU Active CN205938213U (en) | 2016-08-18 | 2016-08-18 | A nodular cast -iron pipe for pushing up advance construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205938213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151694A (en) * | 2016-08-18 | 2016-11-23 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN109000058A (en) * | 2018-09-27 | 2018-12-14 | 新兴铸管股份有限公司 | For bell and spigot small-caliber metal tubes mounting device and its installation method |
-
2016
- 2016-08-18 CN CN201620907433.XU patent/CN205938213U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151694A (en) * | 2016-08-18 | 2016-11-23 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106151694B (en) * | 2016-08-18 | 2019-02-01 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN109000058A (en) * | 2018-09-27 | 2018-12-14 | 新兴铸管股份有限公司 | For bell and spigot small-caliber metal tubes mounting device and its installation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |