CN204703192U - Manhole - Google Patents
Manhole Download PDFInfo
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- CN204703192U CN204703192U CN201520342651.9U CN201520342651U CN204703192U CN 204703192 U CN204703192 U CN 204703192U CN 201520342651 U CN201520342651 U CN 201520342651U CN 204703192 U CN204703192 U CN 204703192U
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- manhole
- carbon steel
- stainless steel
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Abstract
The utility model discloses a kind of manhole, it adopts integral type stainless steel and carbon steel composite material, described integral type stainless steel and carbon steel composite material comprises coat, carbon steel layer and stainless steel layer, the bevel for welding that the curling junction being welded into manhole of described integral type stainless steel and carbon steel composite material is formed is divided into the internal groove of inner side and the outer groove in outside, the outer groove place in the internal groove in inner side and outside welds respectively, at outer groove place welding formation first weld layer in outside, at internal groove place, inner side welding formation second weld layer.By stainless steel layer, have good alkaline-resisting, corrosion resistance characteristic, sewage does not directly contact with carbon steel, avoids getting rusty of carbon steel, improves the application life of manhole.
Description
Technical field
The utility model relates to a kind of manhole technical field.
Background technology
Manhole is the maintenance such as power supply, feedwater, draining, blowdown, communication, cable television, gas pipe, public lighting circuit for Urban Underground infrastructure, easy for installation and arrange.Generally being located on pipeline intersection, turning, caliber or gradient change place and straight line pipeline section and locating at a certain distance, is be convenient to make regular check on ancillary structure.
Existing is plastics integrated injection molding manhole, and namely refer to that the main well seat part forming manhole adopts once injection moulding, under being embedded in earth, plastic strength is low, can not meet instructions for use very well; If make cylinder iron, to get rusty easily, application life is short; If use stainless steel, cost is too high.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of intensity good and the manhole that cost is low.
Consider the problems referred to above of prior art, an aspect disclosed in the utility model, the utility model by the following technical solutions:
A kind of manhole, it comprises manhole well seat, described manhole well seat adopts integral type stainless steel and carbon steel composite material, described integral type stainless steel and carbon steel composite material comprises carbon steel layer and stainless steel layer, described carbon steel layer and stainless steel layer are closely pressed into one, described integral type stainless steel and carbon steel composite material is curling is welded into manhole well seat, described manhole well seat comprises coat from outside to inside successively, carbon steel layer, stainless steel layer, or described manhole well seat comprises coat from inside to outside successively, carbon steel layer, stainless steel layer, the bevel for welding that the curling junction being welded into manhole well seat of described integral type stainless steel and carbon steel composite material is formed is divided into the internal groove of inner side and the outer groove in outside, the outer groove place in the internal groove in inner side and outside welds respectively, at outer groove place welding formation first weld layer in outside, at internal groove place, inner side welding formation second weld layer.
In order to realize the utility model better, further technical scheme is:
According to an embodiment of the present utility model, the bevel angle of the internal groove of described bevel for welding is 45-90 degree.
According to another embodiment of the present utility model, the bevel angle of the outer groove of described bevel for welding is 45-90 degree.
According to another embodiment of the present utility model, described coat is PE layer or EP layer.
According to another embodiment of the present utility model, described stainless steel layer adopts 304 steel.
According to another embodiment of the present utility model, described carbon steel layer adopts Q235 carbon steel.
According to another embodiment of the present utility model, described carbon steel layer is 3:2 with the ratio of the thickness of stainless steel layer.
According to another embodiment of the present utility model, the birdsmouth place of manhole well seat arranges reinforcing rib.
The utility model can also be:
According to another embodiment of the present utility model, it also comprises the manhole shaft be connected with described manhole well seat, and described manhole shaft also adopts described integral type stainless steel and carbon steel composite material.
Compared with prior art, one of the beneficial effects of the utility model are:
A kind of manhole of the present utility model, it adopts integral type stainless steel and carbon steel composite material, and by stainless steel layer, have good alkaline-resisting, corrosion resistance characteristic, sewage does not directly contact with carbon steel, avoids getting rusty of carbon steel, improves the application life of manhole; Mechanical strength is high, does not rupture after flattening or be bending, and carbon steel layer and not revising between steel layer is not peeled off, and cheap for manufacturing cost.
Accompanying drawing explanation
In order to clearer explanation present specification embodiment or technical scheme of the prior art, below the accompanying drawing used required in the description to embodiment or prior art is briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiments in present specification, for those skilled in the art, when not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows the manhole structural representation according to the utility model embodiment.
Fig. 2 shows the manhole tube wall sectional structure schematic diagram at any A place shown in Fig. 1.
Fig. 3 shows the bevel for welding structural representation according to the utility model embodiment.
Wherein, the name corresponding to the Reference numeral in accompanying drawing is called:
1-coat, 2-carbon steel layer, 3-stainless steel layer, 5-bevel for welding, 6-internal groove, the outer groove of 7-, 8-reinforcing rib.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of manhole, it comprises manhole well seat, described manhole well seat adopts integral type stainless steel and carbon steel composite material, described integral type stainless steel and carbon steel composite material comprises carbon steel layer 2 and stainless steel layer 3, described carbon steel layer 2 and stainless steel layer 3 are closely pressed into one, described integral type stainless steel and carbon steel composite material is curling is welded into manhole well seat, described manhole well seat comprises coat 1 from outside to inside successively, carbon steel layer 2, stainless steel layer 3, the bevel for welding 5 that the curling junction being welded into manhole well seat of described integral type stainless steel and carbon steel composite material is formed is divided into the internal groove 6 of inner side and the outer groove 7 in outside, outer groove 7 place in the internal groove 6 in inner side and outside welds respectively, at outer groove 7 place welding formation first weld layer in outside, at inner side internal groove 6 place welding formation second weld layer, namely the form of twice welding is have employed when making this manhole, thus make welding more firm.
Fig. 1, Fig. 2 show the situation that described manhole well seat comprises coat 1, carbon steel layer 2, stainless steel layer 3 from outside to inside successively, the utility model can also be that described manhole well seat comprises coat 1, carbon steel layer 2, stainless steel layer 3 from inside to outside successively, thus is supplied to user to many selections.
The bevel angle of the internal groove 6 of described bevel for welding 5 is 45-90 degree.
The bevel angle of the outer groove 7 of described bevel for welding 5 is 45-90 degree.
Described coat 1 is PE layer or EP layer.
Described stainless steel layer 3 adopts 304 steel.
Described carbon steel layer 2 adopts Q235 carbon steel.
The birdsmouth place of manhole well seat can arrange reinforcing rib 8.
Manhole also comprises manhole shaft, and manhole shaft is connected with described manhole well seat, and described manhole shaft also can adopt integral type stainless steel and carbon steel composite material described above.
Described carbon steel layer 2 is 3:2 with the ratio of the thickness of stainless steel layer 3, general stainless cost far above carbon steel, when ensure properties of product and rationally cost-saving, experiment finds that carbon steel layer 2 is that 5:2 is better with the ratio of the thickness of stainless steel layer 3.
Described integral type stainless steel and carbon steel composite material comprises stainless steel and carbon steel, and its quality proportioning is as follows: comprise in described stainless steel that C is 0.04-0.08 part, Si is 1 part, Mn is 1.1-2.0 part, S is 0.3 part, P is 0.045 part, Ni is 10 parts, Cr is 20 parts; Comprise in described carbon steel that C is 0.20 part, Si is 0.55 part, Mn is 1.0-1.6 part, S is 0.035 part, P is 0.035 part.When above proportioning, found through experiments its yield strength is 345, and tensile strength is 470-630, and elongation rate is 21, therefore has excellent mechanical property.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, identical similar portion cross-reference between each embodiment.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of and claim open in the application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. a manhole, it comprises manhole well seat, it is characterized in that described manhole well seat adopts integral type stainless steel and carbon steel composite material, described integral type stainless steel and carbon steel composite material comprises carbon steel layer (2) and stainless steel layer (3), described carbon steel layer (2) and stainless steel layer (3) are closely pressed into one, described integral type stainless steel and carbon steel composite material is curling is welded into manhole well seat, described manhole well seat comprises coat (1) from outside to inside successively, carbon steel layer (2), stainless steel layer (3), or described manhole well seat comprises coat (1) from inside to outside successively, carbon steel layer (2), stainless steel layer (3), the bevel for welding (5) that the curling junction being welded into manhole well seat of described integral type stainless steel and carbon steel composite material is formed is divided into the internal groove (6) of inner side and the outer groove (7) in outside, weld respectively at the internal groove (6) of inner side and outer groove (7) place in outside, at outer groove (7) place welding formation first weld layer in outside, at inner side internal groove (6) place welding formation second weld layer.
2. manhole according to claim 1, is characterized in that the bevel angle of the internal groove (6) of described bevel for welding (5) is 45-90 degree.
3. manhole according to claim 1, is characterized in that the bevel angle of the outer groove (7) of described bevel for welding (5) is 45-90 degree.
4. manhole according to claim 1, is characterized in that described coat (1) is for PE layer or EP layer.
5. manhole according to claim 1, is characterized in that described stainless steel layer (3) adopts 304 steel.
6. manhole according to claim 1, is characterized in that described carbon steel layer (2) adopts Q235 carbon steel.
7. manhole according to claim 1, is characterized in that described carbon steel layer (2) is 3:2 with the ratio of the thickness of stainless steel layer (4).
8. manhole according to claim 1, is characterized in that the birdsmouth place of manhole well seat arranges reinforcing rib (8).
9. manhole according to claim 1, it is characterized in that it also comprises the manhole shaft be connected with described manhole well seat, described manhole shaft also adopts described integral type stainless steel and carbon steel composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520342651.9U CN204703192U (en) | 2015-05-25 | 2015-05-25 | Manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520342651.9U CN204703192U (en) | 2015-05-25 | 2015-05-25 | Manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703192U true CN204703192U (en) | 2015-10-14 |
Family
ID=54282818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520342651.9U Expired - Fee Related CN204703192U (en) | 2015-05-25 | 2015-05-25 | Manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703192U (en) |
-
2015
- 2015-05-25 CN CN201520342651.9U patent/CN204703192U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20151014 Termination date: 20160525 |