CN203656388U - Thin-wall steel-structure composite tube - Google Patents
Thin-wall steel-structure composite tube Download PDFInfo
- Publication number
- CN203656388U CN203656388U CN201420014448.4U CN201420014448U CN203656388U CN 203656388 U CN203656388 U CN 203656388U CN 201420014448 U CN201420014448 U CN 201420014448U CN 203656388 U CN203656388 U CN 203656388U
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- metal tube
- flange
- tube
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- composite pipe
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Abstract
The utility model relates to a thin-wall steel-structure composite tube, belongs to a transportation pipe of flammable and combustible places such as underground coal mines and solves the problem of the low tensile and anti-deformation capacities of prior composite tubes. According to the technical scheme, the structure comprises an inner metal tube, an outer metal tube, flanges arranged at the two ends of the inner metal tube and the outer metal tube and composite materials filled in a cavity formed by the inner metal tube, the outer metal tube and the flanges. A steel strand is added in the composite material filled in the composite materials filled in the inner metal tube and the outer metal tube, and two ends of the steel strand are located on the flanges at the two ends of the inner metal tube and the outer metal tube through locking units. The composite tube has the advantages that the steel strand is arranged between the inner and outer metal tubes, so that the tensile and anti-deformation capacities of the composite tube are improved; the steel strand is located on the flanges at the two ends of the inner metal tube and the outer metal tube through the locking units, so that mounting is facilitated; reinforcing bars are arranged between the inner and outer metal tubes, so that the anti-impact capacity of the composite tube is further improved.
Description
Technical field
The utility model relates to a kind of delivering pipe for the inferior inflammable and explosive place of coal mine, especially a kind of thin walled steel structure composite pipe with good tension, ability of anti-deformation.
Background technique
A lot of fields such as colliery, oil and gas exploitation and conveying all need different bore pipeline transport gas, liquid and fluidized solid, these fields not only require pipeline to have conventional mechanical property (as bending resistance, tension, shock resistance), also need to have good chemical property (as fire-retardant, antistatic, decay resistance).
Existing metallic conduit very easily corrodes in a humid environment and loses use value, and common metal pipe is guaranteeing that under mechanical index condition, tube wall is thicker, weight is larger, greatly increase the difficulty of installing, make the execution of advocating the technology path take Structural Hardware as main body run into the use under coal mine of very large difficulty, particularly large diameter pipeline.
Application number is that 200910076711.6 Chinese patent discloses a kind of hollow interlayer stainless steel pipe concrete, and it is the filling packing in the middle of steel pipe and interior steel pipe outside; Outer steel pipe adopts Stainless Steel Tube, and interior steel pipe adopts common steel tube, and packing is concrete or slush.This kind of structure has good compression resistance, and still, due to fragility and the structural factor of concrete material, tension, ability of anti-deformation are not strong yet for it, and the combination force of concrete material and interior steel pipe and outer steel pipe is also little.
Application number is that 201120387804.3 Chinese patent discloses a kind of hollow fiber-steel pipe concrete combined structure, by fiber-steel pipe, concrete or reinforced concrete and interior steel pipe ecto-entad form jointly, concrete or reinforced concrete are filled between fiber-steel pipe and interior steel pipe, this concrete tensile strength of directly pouring into a mould is low, cracking resistance is poor, opposing deformation nature is poor, the fragility of material is obvious, its tensile strength is low, even very easily ftracture in the time of lower tensile buckling, therefore, cause steel pipe, combination force between interior steel pipe and concrete is less, three layers easily peel off, lose the tension of composite pipe, anti-spalling.
Summary of the invention
The utility model is for addressing the above problem, design a kind of thin walled steel structure composite pipe, it is provided with steel strand between inside and outside metal tube, steel strand are positioned on the flange at inside and outside metal tube two ends by locking device, further in design, be radially also fixed with stiffening rib at inside and outside metal tube, this design has not only improved tension, the ability of anti-deformation of composite pipe greatly, and easy for installation.
For reaching goal of the invention, the technical solution adopted in the utility model is: a kind of thin walled steel structure composite pipe, the flange that structure comprises interior metal tube, outer metal tube, arranges at inside and outside metal tube two ends, and the composite material of filling in the cavity forming at interior metal tube, outer metal tube and flange, its key is: in the composite material of interior metal tube and outer metal tube filling, add steel strand, steel strand two ends are positioned on the flange at inside and outside metal tube two ends by locking device.
In technique scheme, at the stiffening rib that is radially fixed with circular uniform round tube hole of interior metal tube and outer metal tube; At least uniform 3 groups along the circumferencial direction of interior metal tube of steel strand; Locking device can be fixed on flange the two ends of inside and outside metal tube; In the groove of flange, be provided with stress disc, stress disc is fixed at flange by nut and screw rod; Interior metal tube and outer metal tube are thin-wall steel tube or galvanized iron conduit or the thin-wall steel tube with spiral bar or the galvanized iron conduit that form by lock seaming technique or spiral welded technique; The inwall of interior metal tube and/or outside the outer wall of metal tube be also provided with fire-retardant, antistatic coating or wear-resistant paint, its thickness is not less than the thickness of spiral bar; Steel strand free end is fixed by steel wire clamping plate; Steel strand are placed in plastic bushing to prevent that steel strand from contacting with composite material.
The beneficial effects of the utility model are: one, between inside and outside metal tube, be provided with steel strand, improved tension, the ability of anti-deformation of composite pipe; Two, steel strand are positioned at by locking device on the flange at inside and outside metal tube two ends, easy for installation; Three, between inside and outside metal tube, be provided with stiffening rib, further improved the impact resistance of composite pipe.
Below in conjunction with accompanying drawing, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In accompanying drawing, the 1st, interior metal tube, the 2nd, outer metal tube, the 3rd, flange, the 4th, steel strand, the 5th, link, the 6th, screw rod, the 7th, stiffening rib, the 8th, coupling shaft, the 9th, steel-strand clamping plate, the 10th, stress disc, the 11st, plastic bushing, the 12nd, composite material, the 13rd, fire-retardant, antistatic coating or wear-resistant paint.
Embodiment
Referring to accompanying drawing 1, a kind of thin walled steel structure composite pipe, the flange 3 that structure comprises interior metal tube 1, outer metal tube 2, arranges at inside and outside metal tube two ends, and the composite material of filling in the cavity forming at interior metal tube 1, outer metal tube 2 and flange 3, its key is: in the composite material of interior metal tube 1 and 2 fillings of outer metal tube, add steel strand 4, steel strand 4 two ends are positioned on the flange 3 at inside and outside metal tube two ends by locking device.On metal tube 2, be also provided with auxiliary hole outside, the filling during for filled composite materials 12 and exhaust.In composite pipe, design the tensility that steel strand 4 can improve composite pipe greatly, anti-bending strength also has enhancing to a certain extent.
At the stiffening rib that circular uniform round tube hole is radially set 7 of interior metal tube 1 and outer metal tube 2.Stiffening rib 7 axially evenly arranges many groups along metal tube.Stiffening rib 7 has improved the shock resistance of composite pipe, can also further promote the anti-bending strength of composite pipe.
Described steel strand 4 overcoats the plastic bushing 11 that is full of anti-corrosive grease, plastic bushing 11 along the circumferencial direction of interior metal tube 1 be uniformly distributed, at least 3 groups.Plastic bushing 11 is set can make composite pipe in the time of filled composite materials 12, avoid steel strand 4 to contact with composite material 12.If do not establish plastic bushing 11, after composite pipe is stressed, composite material 12 is easy to peel off with steel strand 4, causes the stress-bearing capability of composite pipe greatly to reduce.
Described locking device comprises the U-shaped link 5 with screw rod 6, and the U-shaped end of link 5 is connected with steel strand 4 with steel-strand clamping plate 9 by coupling shaft 8, and the other end is connected with flange 3 with the cooperation of screw rod 6 by nut.By steel wire clamping plate 9, steel strand 4 can form a ring coordinating with link 5, and then make steel strand 4 connection metal pipe two end flange 3 form flange 3 to coordinate with the location of flange 3 with steel strand 4.
In the groove of flange 3, be provided with stress disc 10, stress disc 10 is fixed on flange 3 by nut and screw rod 6.When flange 3 is fixing, make flange 3 be fixed on the two ends of inside and outside metal tube through mounting hole the mounting nuts of flange 3 screw rod 6.And stress disc 10 the stress equalization that can make composite pipe is set.
Described interior metal tube 1 and outer metal tube 2 are thin-wall steel tube or galvanized iron conduit or the thin-wall steel tube with spiral bar or the galvanized iron conduit that form by lock seaming technique or spiral welded technique, and its pipe thickness is 0.4 ~ 3 mm, and supporting external diameter is 48 ~ 1000 mm.
The inwall of interior metal tube 1 and/or outside the outer wall of metal tube 2 be also provided with fire-retardant, antistatic coating or wear-resistant paint 13, its thickness is not less than the thickness of spiral bar rib.
The structure of flange 3 is composite structures of flange plate sheet and connection end composite structure or kink disc and connection end.
Described composite material 12 is polyurethane foamed materials, or foamed cement material or foaming perlite material.
The utility model is in the specific implementation: stiffening rib 7 is fixed on interior metal tube 1, then outer metal tube 2 is installed and is fixed with stiffening rib 7.The cavity that steel strand 4 are formed by inside and outside metal tube also, through the through hole of stiffening rib 7, is installed plastic bushing 11 simultaneously.Form a ring by fixing the free end of steel strand 4 with steel wire clamping plate 9, then by the ring set of steel strand 4 at coupling shaft 8, and coupling shaft 8 is fixed on link 5.Flange with stress disc 10 3 is fixed on to the two ends of inside and outside metal tube, and by nut and coordinating of screw rod 6 flange 3 being fixed on to inside and outside metal tube two ends.Filled composite materials 12 in the cavity finally forming to inside and outside metal tube.Composite material 12 solidifies that the inside and outside wall brushing of backward composite pipe is fire-retardant, antistatic coating or wear-resistant paint 13.
Claims (9)
1. a thin walled steel structure composite pipe, the flange (3) that structure comprises interior metal tube (1), outer metal tube (2), arranges at inside and outside metal tube two ends, and the composite material of filling in the cavity forming at interior metal tube (1), outer metal tube (2) and flange (3), it is characterized in that: in the composite material of interior metal tube (1) and outer metal tube (2) filling, add steel strand (4), steel strand (4) two ends are positioned on the flange (3) at inside and outside metal tube two ends by locking device.
2. thin walled steel structure composite pipe according to claim 1, is characterized in that: at the stiffening rib that circular uniform round tube hole is radially set (7) of interior metal tube (1) and outer metal tube (2).
3. thin walled steel structure composite pipe according to claim 1, is characterized in that: described steel strand (4) overcoat the plastic bushing (11) that is full of anti-corrosive grease, and plastic bushing (11) is uniformly distributed at least 3 groups along the circumferencial direction of interior metal tube (1).
4. thin walled steel structure composite pipe according to claim 1, it is characterized in that: described locking device comprises the U-shaped link (5) with screw rod (6), the U-shaped end of link (5) is connected with steel strand (4) with steel-strand clamping plate (9) by coupling shaft (8), and the other end is connected with flange (3) with the cooperation of screw rod (6) by nut.
5. thin walled steel structure composite pipe according to claim 4, is characterized in that: in the groove of flange (3), be provided with stress disc (10), stress disc (10) is fixed on flange (3) by nut and screw rod (6).
6. thin walled steel structure composite pipe according to claim 1, it is characterized in that: the thin-wall steel tube with spiral bar or galvanized iron conduit that described interior metal tube (1) and outer metal tube (2) form for thin-wall steel tube or galvanized iron conduit or by lock seaming technique or spiral welded technique, its pipe thickness is 0.4 ~ 3 mm, and supporting external diameter is 48 ~ 1000 mm.
7. thin walled steel structure composite pipe according to claim 6, it is characterized in that: the inwall of interior metal tube (1) and/or outside the outer wall of metal tube (2) be also provided with fire-retardant, antistatic coating or wear-resistant paint (13), its thickness is not less than the thickness of spiral bar rib.
8. thin walled steel structure composite pipe according to claim 1, is characterized in that: the structure of flange (3) is the composite structure of flange plate sheet and connection end composite structure or kink disc and connection end.
9. thin walled steel structure composite pipe according to claim 1, is characterized in that: described composite material (12) is polyurethane foamed material, or foamed cement material or foaming perlite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014448.4U CN203656388U (en) | 2014-01-10 | 2014-01-10 | Thin-wall steel-structure composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014448.4U CN203656388U (en) | 2014-01-10 | 2014-01-10 | Thin-wall steel-structure composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656388U true CN203656388U (en) | 2014-06-18 |
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ID=50922773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420014448.4U Expired - Fee Related CN203656388U (en) | 2014-01-10 | 2014-01-10 | Thin-wall steel-structure composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134956A (en) * | 2014-08-18 | 2014-11-05 | 国家电网公司 | Fireproof cable sleeve |
-
2014
- 2014-01-10 CN CN201420014448.4U patent/CN203656388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134956A (en) * | 2014-08-18 | 2014-11-05 | 国家电网公司 | Fireproof cable sleeve |
| CN104134956B (en) * | 2014-08-18 | 2017-03-08 | 国家电网公司 | A kind of cable fire-proof sleeve pipe |
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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: 20140618 Termination date: 20210110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |