CN205013896U - Take steel - concrete integrated configuration pipeline of spiral beaded finish - Google Patents
Take steel - concrete integrated configuration pipeline of spiral beaded finish Download PDFInfo
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- CN205013896U CN205013896U CN201520728996.8U CN201520728996U CN205013896U CN 205013896 U CN205013896 U CN 205013896U CN 201520728996 U CN201520728996 U CN 201520728996U CN 205013896 U CN205013896 U CN 205013896U
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Abstract
The utility model discloses a take steel - concrete integrated configuration pipeline of spiral beaded finish, including a pipe body, the outside protruding muscle that forms along body outer wall screw set that extends in body surface, this protruding muscle and body formation recess to be equipped with the shutoff steel band that is used for this recess notch of shutoff, form the hollow beaded finish between protruding muscle and the shutoff steel band to concrete -filled in this beaded finish. The utility model discloses the advantage is through setting up the hoop intensity that strengthens the pipeline with body integrated into one piece's spiral beaded finish, concrete through packing in the beaded finish further improves body compressive strength, the utility model discloses the difficult problem that can use jumbo size steel construction product in the current road in the piping work that shares underground, utility tunnel and underground, the subway has been solved to the pipeline, and simultaneously, the utility model discloses method easy to operate, construction are simple and convenient, reduction of erection time, reduce cost.
Description
Technical field
The utility model relates to a kind of pipeline, particularly relates to a kind of steel-concrete combined structure pipeline with spiral stiffening ring.
Background technique
At present, in pipework, conventional pipeline has cement pipe, plastic tube, normal carbon steel pipe, Stainless Steel Tube and Coating Steel Pipe etc.The cement pipe of larger caliber has square tubular and circular pipe, is to carry out prefabricated or cast-in-site with cement with reinforcing bar, and Engineering Overall cost is high, easily leaks, easy to crack, internal pressure-resistant ability; Every pipe joint length is not long, and joint is many, constructional difficulties; First will do basis during construction, construction cost is higher.Plastic tube is raw material with plastic resin, and add stabilizer and other additive, form through extrusion process in tube producer, quality is light; Easy to process, but bore is little; Mechanical strength is low, anti-damage performance is poor, not wear-resistant, not fire-resistant, do not reach fire-fighting requirements as during spatial structure pipe.It is too large that normal carbon steel pipe opening footpath can not be done, and generally can only reach 2.5 meters, the maximum diameter of NBS is 2.4 meters, and during heavy caliber, tube wall thickens greatly, and cost is high.
There is following shortcoming in the steel pipe of existing band spiral stiffening ring: 1., body and stiffening ring be two independent parts, and be integrated by solder design, when stiffening ring is stressed, weld seam is area of stress concentration, has cracking hidden danger; 2., in volume circular bending process, because weld seam is in the outside in machining deformation district, weld seam Tensile, distortion is large, very easily ftractures; If 3., body for a long time by dynamic load, as subway, vehicle etc., weld seam very easily ftractures because dynamic load is tired; 4. be, in view of this class pipe structure half flexible structure thing, particularly during major diameter body, comparatively large to the dependence of pipeclay jointly by stress effect (i.e. the backfill cooperative transformation of body and surrounding), the rigidity of body self is inadequate, easily produces larger distortion.
Therefore, above-mentioned technical barrier urgently to be resolved hurrily.
Model utility content
Model utility object: the purpose of this utility model is to provide the steel-concrete combined structure pipeline of a kind of high strength, better the band spiral stiffening ring of adaptation equipment dynamic load.
Technological scheme: the steel-concrete combined structure pipeline of band spiral stiffening ring described in the utility model, comprise body, this tube surfaces stretch out formed along tube wall spiral arrange convex tendon, this convex tendon and body form groove, and the shutoff steel band be provided with for this groove notch of shutoff, form hollow stiffening ring between convex tendon and shutoff steel band, and in this stiffening ring fill concrete.
Wherein, the cross section of shutoff steel band is yi word pattern, grooved or hollow.
In the utility model, the bottom of grooved or hollow shutoff steel band flushes with inboard wall of tube body groove notch position, forms the steel-concrete combined structure pipeline of outer wall belt spiral stiffening ring.
In the utility model, the notch position of inboard wall of tube body groove can also be given prominence in the bottom of grooved or hollow shutoff steel band, forms the steel-concrete combined structure pipeline of inside and outside cornice double helix stiffening ring.
Wherein, preferably at least side of shutoff steel band is welded with groove notch position.
In the utility model, the cross section of convex tendon is Ω shape, grooved, waveform, parabola shaped, square or trapezoidal.
Body of the present utility model by the main steel band simultaneously having convex tendon, another side correspondence forms groove, and forms for the common helically coiling of shutoff steel band of this groove notch of shutoff.
The making method of the steel-concrete combined structure pipeline of the utility model band spiral stiffening ring, comprises the steps:
(1) main steel band and shutoff steel band is prepared;
(2) described main steel band has the first opposite side and the second opposite side, main steel band is bent into the steel band of band convex tendon, and this convex tendon is arranged along the first opposite side interval of main steel band, and consistent with the length of the second opposite side, and forms groove with main steel band;
(3) shutoff steel band is fitted in the notch place of main steel band groove, to form compound steel band, meanwhile, between described convex tendon and shutoff steel band, form hollow stiffening ring;
(4) this compound ribbon spiral is rolled the body forming band spiral stiffening ring;
(5) body is cut into pieces and soldering and sealing is carried out to its interlayer gap, steel pipe two ends;
(6) to fill concrete in stiffening ring.
Wherein in step (3), after shutoff steel band and main steel band are fitted, gas shielded arc welding is adopted to weld; In step (4), the compound steel band weld seam that self is formed in spiral coiling process is welded.
Model utility principle: the utility model make use of the common Force principle of pipeclay and concrete steel pipe working principle cleverly.The common Force principle of pipeclay is pipeline after embedding, the load of conduit upper is not that the rigidity in tube road is born, but tube road and native stone stressed each other, interact, just define the common stressed effect of pipeclay, load vertically downward will be converted into body tube wall meridian to internal pressure.And concrete steel pipe working principle is at hollow steel casing pack concrete, utilize concrete bearing capacity and steel pipe to concrete encapsulation, make the construction element that the vertical bearing capacity of steel pipe increases.First, utilize stone arc bridge principle, body helical coil is coiled into cylindrical tubes body.After body circumference backfill stone, mutually stressed between native stone and body, and pipe structure is stablized, pipeclay is formed by stress effect jointly, and now, the dynamic load that body upper vertical is downward and dead load are just converted into body tube wall internal circumferential internal pressure.This just requires that body tube wall has the very strong ability of inwardly pressing in anti-week, and so just must there be larger moment of inertia the longitudinal cross-section of tube wall, and what the existence of convex tendon became geometry multiple increases this moment of inertia.And water full concrete in hollow cavity after, concrete defines concrete steel pipe with the steel plate surrounding it.Theoretical according to concrete steel pipe, concrete steel tubular type composite structure, fills in concrete steel pipe, and concrete replaces tube wall to bear axial pressure, and the ability making this composite structure bear axial pressure becomes multiple to improve.This composite structure is reinforcement again to convex tendon bearing capacity and raising, guarantees that tube wall can not wall unstability and bending deflection when pressure-bearing, meanwhile, by thinning for the steel plate of tube wall use, can also save material.In addition the utility model pipeline by convex tendon and body one-body molded, there is not weld seam between the two, there is not area of stress concentration, without cracking hidden danger; Simultaneously steel pipe rigidity is improved, pipeclay jointly by stress effect (namely body and around backfill cooperative transformation) in not easily produce moderate finite deformation, the dynamic load caused by the vibration in the external world can well be born, as subway, vehicle etc.; Steel with spiral stiffening ring under the support of above-mentioned principle-concrete combined structure pipeline has just possessed excellent performance.
Beneficial effect: compared with prior art, the utility model has the following advantages: pipeline enhances overall hoop intensity by stiffening ring; Body compressive strength is improved further by the concrete of filling between stiffening ring and inboard wall of tube body; Body and stiffening ring are integrated formed structures, between the two no-welding-seam, reduce stress concentration point, and be out of shape little in volume circular bending process, pipeline is not easy to crack, higher-strength and rigidity, can solve the pipeline damage because foundation deformation causes; The two stiffening ring of inner and outer walls of pipeline band further increases the wall moment of inertia of tube wall, enhances the overall construction intensity of pipeline; Arranging of two stiffening ring can also ensure that uncracked stiffening ring still can play reinforing function when generating portion ftractures weld seam due to External Force Acting; The utility model pipeline can bear dynamic load for a long time, solves the difficult problem that can use heavy-gauge steel infrastructure product in underground common conduit engineering, underground pipe gallery, subway and underground passing road; Meanwhile, the utility model method easily operates, easy construction, reduction of erection time, to reduce costs.
Accompanying drawing explanation
Fig. 1 is the utility model two kinds of steel bands arrangement position schematic diagram on a production line;
Fig. 2 is the structural representation of the shaping rear main steel band of the utility model;
Fig. 3 is the shaping rear main steel band of the utility model and yi word pattern shutoff steel band arrangement position schematic diagram on a production line;
Fig. 4 is the shaping rear main steel band of the utility model and short grooved shutoff steel band arrangement position schematic diagram on a production line;
Fig. 5 is the shaping rear main steel band of the utility model and trough type shutoff steel band arrangement position schematic diagram on a production line;
Fig. 6 is the shaping rear main steel band of the utility model and hollow shutoff steel band arrangement position schematic diagram on a production line;
Fig. 7 is the shaping rear main steel band of the utility model and the rear sectional view forming composite steel band of yi word pattern shutoff steel band laminating;
Fig. 8 is the shaping rear main steel band of the utility model and the rear sectional view forming composite steel band of short grooved shutoff steel band laminating;
Fig. 9 is the shaping rear main steel band of the utility model and the rear sectional view forming composite steel band of trough type shutoff steel band laminating;
Figure 10 is the shaping rear main steel band of the utility model and the rear sectional view forming composite steel band of hollow shutoff steel band laminating;
Figure 11 is that the utility model utilizes the compound ribbon spiral in Fig. 6-8 to be wound into the schematic diagram of steel pipe;
Figure 12 is that in the utility model, Figure 10 reels the stereogram of Spiral Steel Pipe formed;
Figure 13 is the sectional view of the compound steel band of the utility model weld seam that self is formed in spiral coiling process;
Figure 14 is the structural representation in interlayer gap, steel pipe two ends after the utility model body is cut into pieces;
Figure 15 is that the utility model will form the half sectional view of steel pipe after composite steel band winding in Fig. 6;
Figure 16 is that the utility model will form the half sectional view of steel pipe after composite steel band winding in Fig. 7;
Figure 17 is that the utility model will form the half sectional view of steel pipe after composite steel band winding in Fig. 8;
Figure 18 is that the utility model will form the half sectional view of steel pipe after composite steel band winding in Fig. 9;
Figure 19 be the utility model steel pipe in fig. 14 hollow stiffening ring in sectional view after fill concrete;
Figure 20 be the utility model steel pipe in fig .15 hollow stiffening ring in sectional view after fill concrete;
Figure 21 be the utility model steel pipe in figure 16 hollow stiffening ring in sectional view after fill concrete;
Figure 22 be the utility model steel pipe in fig. 17 hollow stiffening ring in sectional view after fill concrete;
Figure 23 is the half sectional view of the steel-concrete combined structure pipeline of the band spiral stiffening ring that the utility model yi word pattern shutoff steel band makes;
Figure 24 is the half sectional view of the steel-concrete combined structure pipeline of the band spiral stiffening ring that the utility model makes of short grooved shutoff steel band;
Figure 25 is the half sectional view of the steel-concrete combined structure pipeline of the band spiral stiffening ring that the utility model trough type shutoff steel band makes;
Figure 26 is the half sectional view of the steel-concrete combined structure pipeline of the band spiral stiffening ring that the utility model hollow shutoff steel band makes.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
The steel-concrete combined structure pipeline of band spiral stiffening ring of the present utility model, comprise body 100, this body 100 outwardly extends to form the convex tendon 102 that the outer wall spiral along body 100 is arranged, simultaneously the cross section of convex tendon 102 is Ω shape, grooved, waveform, the analogous shape such as parabola shaped, square or trapezoidal, this convex tendon 102 can be a row, also can be many rows and be wound in tube wall in a spiral manner; This body 100 forms groove 103 with convex tendon 102, inboard wall of tube body is provided with the shutoff steel band 200 for this groove 103 notch of shutoff simultaneously, the cross section of this shutoff steel band 200 is the analogous shapes such as yi word pattern, grooved or hollow, the both sides of shutoff steel band 200 are all welded with groove 103 notch position, block this notch, can also only be welded with groove 103 notch position the side of shutoff steel band 200, opposite side keeps free end, allows axial deformation.
With the pipeline of yi word pattern shutoff steel band, tube wall band protruding structure, inboard wall of tube body is smooth and do not have projective structure, and this kind of pipeline can be used for walking water channel etc.
The bottom 201 of grooved or hollow shutoff steel band flushes with inboard wall of tube body groove 103 notch position, forms the steel-concrete combined structure pipeline of outer wall belt spiral stiffening ring, and its inner wall smooth, without protruding structure, this kind of pipeline can be used for walking water channel etc.
The notch position of inboard wall of tube body groove 103 is given prominence in the bottom 201 of grooved or hollow shutoff steel band, form the steel-concrete combined structure pipeline of inside and outside wall all with double helix stiffening ring, this kind of body is applicable to train, subway passage, and projective structure can be used as sleeper.
Form hollow stiffening ring 300 between convex tendon 102 and shutoff steel band 200, and in this stiffening ring 300 fill concrete 400.Because concrete participates in bearing pressure, the circumferential bearing capacity of steel pipe of the present utility model about increases several times than common steel pipe.
Body 100 by the main steel band 101 simultaneously having convex tendon 102, another side correspondence forms groove 103, and forms for the common helically coiling of shutoff steel band 200 of this groove 103 notch of shutoff.
Steel pipe of the present utility model is adopted and is made with the following method:
Before making, according to the diameter of institute's spiral welded steel pipe, the formed angle of spiral forming machine is adjusted to desired value;
(1) main steel band 101 and shutoff steel band 200 is prepared, as shown in Figure 1;
(2) this main steel band 104 has the first opposite side 105 and the second opposite side 106, through former block, main steel band 104 is bent into the steel band of band convex tendon 102, this convex tendon 102 is arranged along the first opposite side 105 interval of main steel band 104, and it is consistent with the length of the second opposite side 106, and form groove 103, as shown in Fig. 2-Fig. 6 with main steel band 104;
(3) shutoff steel band 200 is fitted in the notch place of main steel band groove 103, with gas shielded arc welding, shutoff steel band 200 and main steel band 101 contact segment are welded together to form compound steel band, simultaneously, hollow stiffening ring 300 is formed, as shown in Fig. 7-Figure 10 between described convex tendon 102 and shutoff steel band 200;
(4) this compound steel band is sent into rolling machine structure 500, under the acting in conjunction of 1# roller 501,2# roller 502,3# roller 503, spiral rolls the body 100 forming band spiral stiffening ring, as shown in Figure 11, Figure 12; The compound steel band spiral weld 600 that self is formed in spiral coiling process is welded with submerged arc welding, as shown in figure 13.
(5) body 100 be cut into pieces and soldering and sealing is carried out to its interlayer gap, steel pipe two ends 104, ensureing to form hollow stiffening ring 300 between main steel band 101 and shutoff steel band, as shown in figure 14;
(6) to fill concrete in stiffening ring 300, as shown in Figure 15-Figure 26.
Convex tendon on body of the present utility model and body adopts integrated mode, strengthen body self-strength, reduce attachment weld, reduce stress concentration point, avoid general pipeline to need to carry out overlapping the slot Strength co-mputation, because seam crossing is stress concentration point, thickness generally can not meet design requirement, force whole body enlarged in thickness, waste material; Outer wall of steel pipe band convex tendon of the present utility model, enhances the hoop intensity of body, and inner wall belt convex tendon strengthens the hoop intensity of body further;
The manufacture of pipeline of the present utility model all adopts Mechanized Processing, and working strength significantly reduces, and pipeline quality is protected.Steel pipe of the present utility model can be used for underground common conduit engineering, underground pipe gallery and underground passing road, subway construction etc.
The embodiment of the steel-concrete combined structure pipeline of the band spiral stiffening ring that embodiment 1 makes of yi word pattern shutoff steel band
According to the diameter of made spiral welded steel pipe, the formed angle of spiral forming machine is adjusted to desired value.Main steel band and shutoff steel band, wherein the quantity of shutoff steel band is determined by practical condition, through unreeling, after leveling, the operation such as deburring, places, as shown in Figure 1 by production position; Main steel band is placed on the unreeling machine below shutoff steel band, and main steel band is processed into continuous convex tendon through former block, and shutoff steel band is processed into through former block the shutoff steel band that end face is yi word pattern again, as shown in Figure 3; By shutoff steel band under the effect of pinch roller, fit with main steel band, add shutoff steel band and main steel band contact segment welds together, the composite steel band of formation with gas shielded arc welding by interior, the bottom of one word shutoff steel band flushes with inboard wall of tube body groove notch position, as shown in Figure 7; Composite steel band is sent into rolling machine structure (1# roller, 2# roller, 3# roller), as shown in figure 11, while volume circle, the spiral weld submerged arc welding between tube coupling with tube coupling is welded, and is wound into spiral steel pipe, as shown in Figure 12 and Figure 13; After steel pipe reaches requirement length, by steel pipe cutting, soldering and sealing is carried out in interlayer gap, steel pipe two ends, as shown in figure 14, ensures to form hollow stiffening ring structure between main steel band and shutoff steel band, and forms outer wall belt convex tendon, the body of inner wall smooth, as shown in figure 15; Above-mentioned tubular body is imbedded heatable adobe sleeping platform, can inside filling concrete in stiffening ring, form the steel-concrete combined structure pipeline of band spiral stiffening ring, as shown in Figure 19, Figure 23.
The embodiment of the steel-concrete combined structure pipeline of the band spiral stiffening ring that embodiment 2 makes of short grooved shutoff steel band
According to the diameter of made spiral welded steel pipe, the formed angle of spiral forming machine is adjusted to desired value.Main steel band and shutoff steel band, wherein the quantity of shutoff steel band is determined by practical condition, through unreeling, after leveling, the operation such as deburring, places, as shown in Figure 1 by production position; Main steel band is placed on the unreeling machine below shutoff steel band, and main steel band is processed into continuous convex tendon through former block, shutoff steel band again through former block be processed into end face be the shutoff steel band of short grooved as shown in Figure 4; By shutoff steel band under the effect of pinch roller, fit with main steel band, add shutoff steel band and main steel band contact segment welds together, the composite steel band of formation with gas shielded arc welding by interior, the bottom of short grooved shutoff steel band flushes with inboard wall of tube body groove notch position, as shown in Figure 8; Composite steel band is sent into rolling machine structure (1# roller, 2# roller, 3# roller), as shown in figure 11, while volume circle, the spiral weld submerged arc welding between tube coupling with tube coupling is welded, and is wound into spiral steel pipe, as shown in Figure 12 and Figure 13; After steel pipe reaches requirement length, by steel pipe cutting, soldering and sealing is carried out in interlayer gap, steel pipe two ends, as shown in figure 14, ensures to form hollow stiffening ring structure between main steel band and shutoff steel band, and forms outer wall belt convex tendon, the body of inner wall smooth, as shown in figure 16; Above-mentioned tubular body is imbedded heatable adobe sleeping platform, can inside filling concrete in stiffening ring, form the steel-concrete combined structure pipeline of band spiral stiffening ring, as shown in Figure 20, Figure 24.
The embodiment of the steel-concrete combined structure pipeline of the band spiral stiffening ring that embodiment 3 makes of trough type shutoff steel band
According to the diameter of made spiral welded steel pipe, the formed angle of spiral forming machine is adjusted to desired value.Main steel band and shutoff steel band, wherein the quantity of shutoff steel band is determined by practical condition, through unreeling, after leveling, the operation such as deburring, places, as shown in Figure 1 by production position; Main steel band is placed on the unreeling machine below shutoff steel band, and main steel band is processed into continuous convex tendon through former block, and shutoff steel band is processed into through former block the shutoff steel band that end face is trough type again; As shown in Figure 5; By shutoff steel band under the effect of pinch roller, fit with main steel band, add shutoff steel band and main steel band contact segment welds together, the composite steel band of formation with gas shielded arc welding by interior, the notch position of inboard wall of tube body groove is given prominence in the bottom of trough type shutoff steel band, as shown in Figure 9; Composite steel band is sent into rolling machine structure (1# roller, 2# roller, 3# roller), as shown in figure 11, while volume circle, the spiral weld submerged arc welding between tube coupling with tube coupling is welded, and is wound into spiral steel pipe, as shown in Figure 12 and Figure 13; After steel pipe reaches requirement length, by steel pipe cutting, soldering and sealing is carried out in interlayer gap, steel pipe two ends, as shown in figure 14, ensure between main steel band and shutoff steel band, to form hollow stiffening ring structure, and form outer wall belt convex tendon, inwall with the body of belt transect convex tendon, as shown in figure 17; Above-mentioned tubular body is imbedded heatable adobe sleeping platform, can inside filling concrete in stiffening ring, form the steel-concrete combined structure pipeline of band spiral stiffening ring, as shown in Figure 21, Figure 25.
The embodiment of the steel-concrete combined structure pipeline of the band spiral stiffening ring that embodiment 4 makes of hollow shutoff steel band
According to the diameter of made spiral welded steel pipe, the formed angle of spiral forming machine is adjusted to desired value.Main steel band and shutoff steel band, wherein the quantity of shutoff steel band is determined by practical condition, through unreeling, after leveling, the operation such as deburring, places, as shown in Figure 1 by production position; Main steel band is placed on the unreeling machine below shutoff steel band, and main steel band is processed into continuous convex tendon through former block, and shutoff steel band is processed into through former block the shutoff steel band that end face is hollow again, as shown in Figure 6; By shutoff steel band under the effect of pinch roller, fit with main steel band, add shutoff steel band and main steel band contact segment welds together, the composite steel band of formation with gas shielded arc welding by interior, the notch position of inboard wall of tube body groove is given prominence in the bottom of hollow shutoff steel band, as shown in Figure 10; Composite steel band is sent into rolling machine structure (1# roller, 2# roller, 3# roller), as shown in figure 11, while volume circle, the spiral weld submerged arc welding between tube coupling with tube coupling is welded, and is wound into spiral steel pipe, as shown in Figure 12 and Figure 13; After steel pipe reaches requirement length, by steel pipe cutting, soldering and sealing is carried out in interlayer gap, steel pipe two ends, as shown in figure 14, ensures that main steel band and shutoff steel band form inside and outside wall jointly all with convex body, as shown in figure 18; Body is imbedded heatable adobe sleeping platform, can inside filling concrete in stiffening ring, form the steel-concrete combined structure pipeline of band spiral stiffening ring, as shown in Figure 22, Figure 26.
Claims (6)
1. the steel-concrete combined structure pipeline with spiral stiffening ring, it is characterized in that: comprise body (100), described body (100) outwardly extends to form the convex tendon (102) arranged along tube wall spiral, this convex tendon (102) and body (100) form groove (103), and the shutoff steel band (200) be provided with for this groove of shutoff (103) notch, hollow stiffening ring (300) is formed between described convex tendon (102) and shutoff steel band (200), and in this stiffening ring (300) fill concrete (400).
2. be with the steel-concrete combined structure pipeline of spiral stiffening ring according to claim 1, it is characterized in that: the cross section of described shutoff steel band (200) is yi word pattern, grooved or hollow.
3. be with the steel-concrete combined structure pipeline of spiral stiffening ring according to claim 2, it is characterized in that: the bottom (201) of described grooved or hollow shutoff steel band flushes with inboard wall of tube body groove (103) notch position, form the steel-concrete combined structure pipeline of outer wall belt spiral stiffening ring.
4. be with the steel-concrete combined structure pipeline of spiral stiffening ring according to claim 2, it is characterized in that: the notch position of the outstanding inboard wall of tube body groove (103) in bottom (201) of described grooved or hollow shutoff steel band, forms the steel-concrete combined structure pipeline of inside and outside cornice double helix stiffening ring.
5. be with the steel-concrete combined structure pipeline of spiral stiffening ring according to claim 1, it is characterized in that: the cross section of described convex tendon (102) is Ω shape, grooved, waveform, parabola shaped, square or trapezoidal.
6. be with the steel-concrete combined structure pipeline of spiral stiffening ring according to claim 1, it is characterized in that: described body (100) by the main steel band (101) simultaneously having convex tendon (102), another side correspondence forms groove (103), and forms for the common helically coiling of shutoff steel band (200) of this groove of shutoff (103) notch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520728996.8U CN205013896U (en) | 2015-09-18 | 2015-09-18 | Take steel - concrete integrated configuration pipeline of spiral beaded finish |
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| CN201520728996.8U CN205013896U (en) | 2015-09-18 | 2015-09-18 | Take steel - concrete integrated configuration pipeline of spiral beaded finish |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965623A (en) * | 2017-12-27 | 2018-04-27 | 福建新通源复合材料科技有限公司 | A kind of continuous winding composite pipe with enhancing muscle |
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2015
- 2015-09-18 CN CN201520728996.8U patent/CN205013896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965623A (en) * | 2017-12-27 | 2018-04-27 | 福建新通源复合材料科技有限公司 | A kind of continuous winding composite pipe with enhancing muscle |
| CN107965623B (en) * | 2017-12-27 | 2023-12-12 | 福建新通源复合材料科技有限公司 | Continuous winding composite pipe with reinforcing ribs |
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Address after: 211215 Zhetang Industrial Park, Lishui Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee after: NANJING LIANZHONG ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 211215 No. 331 Zhening East Road, Zhetang Industrial Concentration Zone, Lishui Economic Development Zone, Nanjing City, Jiangsu Province Patentee before: NANJING LIANZHONG CONSTRUCTION ENGINEERING TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230807 Address after: No. 331 Zhening East Road, Lishui Economic Development Zone, Nanjing, Jiangsu Province, 211215 Patentee after: Nanjing Dade Steel Pipe Co.,Ltd. Address before: 211215 Zhetang Industrial Park, Lishui Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING LIANZHONG ENGINEERING TECHNOLOGY Co.,Ltd. |