CN211259891U - High-performance long-life plastic-coated composite steel pipe - Google Patents
High-performance long-life plastic-coated composite steel pipe Download PDFInfo
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- CN211259891U CN211259891U CN201921170071.0U CN201921170071U CN211259891U CN 211259891 U CN211259891 U CN 211259891U CN 201921170071 U CN201921170071 U CN 201921170071U CN 211259891 U CN211259891 U CN 211259891U
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Abstract
The utility model discloses a compound steel pipe of high performance long-life plastic-coated, concretely relates to compound steel pipe technical field, including interior bushing pipe, the intraductal undercoating that is equipped with of interior bushing, the undercoating spraying is at interior bushing pipe inner chamber, interior bushing pipe's lateral wall is equipped with the outer tube, the outer tube cup joints at interior bushing pipe lateral wall, the equal fixedly connected with location strip in both sides of interior bushing pipe lateral wall, the constant head tank has all been seted up to the both sides of exterior bushing pipe inner chamber, location strip sliding connection is in the constant head tank, the lateral wall of outer tube is equipped with the external coating, the external coating spraying is at the outer bushing. The utility model discloses a bushing pipe and outer tube in setting up has effectively made things convenient for the staff to assemble bushing pipe and outer tube, and the outer tube has effectively improved anti external shock's ability, has guaranteed to equip the fixed stability of bushing pipe in the back to can not cause the influence to the inner coating, effectively prolonged the life of coating, satisfied the use needs.
Description
Technical Field
The utility model relates to a compound steel pipe technical field, more specifically say, the utility model relates to a compound steel pipe of high performance long-life plastic-coated.
Background
The inner and outer plastic-coated pipelines are steel-plastic composite pipes formed by melting a layer of organic matters with the thickness of 0.5-1.0 mm, such as polyethylene resin, ethylene-acrylic acid copolymer, epoxy powder, nontoxic polypropylene or nontoxic polyvinyl chloride, and the like on the inner wall of a steel pipe.
Patent application publication No. CN 206861075U's utility model discloses a compound steel pipe of high strength plastic-coated, its technical scheme main points are including the steel pipe body, its characterized in that: the utility model discloses a steel pipe body, including steel pipe body, including the steel pipe body, the steel pipe body is equipped with interior cladding and outer cladding, interior cladding includes Teflon coating and epoxy layer, the epoxy layer is hugged closely the coating on the steel pipe body, Teflon coating is on the epoxy layer, outer cladding is ASA resin coating, the cladding has the elasticity rubber layer on the ASA resin coating, the parcel has the Kevlar fibre layer on the elasticity rubber layer, and this utility model has the advantages of Teflon coating, ASA resin coating and epoxy layer can protect the steel pipe body effectively, avoids it to take place the corrosion and improves its stand wear and tear and high temperature resistance, can protect the steel pipe body in the aspect of physics at outside cladding elasticity rubber layer and Kevlar fibre layer.
But it is when the in-service use, still has more shortcoming, for whole coating on the steel pipe surface if the coating, because the laminating is too inseparable easy extrusion force that produces when the steel pipe expends with heat and contracts with cold, the inner structure that leads to the coating breaks off, and life reduces, is damaged by the liquid corrosion of inner chamber transportation easily, and this steel pipe body is the individual layer steel pipe, and shock resistance is lower, can cause the impact damage to steel pipe inner chamber coating when the steel pipe outer wall receives the impact, can not be fine satisfy the user demand.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects of the prior art, the embodiment of the utility model provides a high-performance long-life plastic-coated composite steel pipe, when the inner lining pipe and the outer sleeve expand by heat, the inner coating on the inner side of the inner lining pipe can extend through the filling groove arranged inside, and the elastic silica gel filled in the filling groove can absorb a part of stress, thereby effectively prolonging the service life of the inner coating of the inner lining pipe in an overheat environment, and simultaneously, the outer sleeve can extrude the empty groove at the bottom of the outer coating when expanding by heat, thereby avoiding the coating from being extruded by the expanded outer sleeve to break the internal structure, and the inner lining pipe and the outer sleeve are clamped and fixed by the positioning strip and the positioning groove, thereby effectively facilitating the assembly of workers to the inner lining pipe and the outer sleeve, the outer sleeve effectively improves the external impact resistance, ensures the stability of fixing the inner lining pipe after the equipment, and can, to solve the problems set forth in the background art described above.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high performance long-life plastic-coated composite steel pipe, includes interior bushing pipe, be equipped with the undercoating in the interior bushing pipe, the undercoating sprays in the interior bushing pipe inner chamber, the lateral wall of interior bushing pipe is equipped with the outer tube, the outer tube cup joints at interior bushing pipe lateral wall, the both sides of interior bushing pipe lateral wall all fixedly connected with location strip, the constant head tank has all been seted up to the both sides in outer tube inner chamber, location strip sliding connection is in the constant head tank, the lateral wall of outer tube is equipped with the external coating, the external coating sprays at the outer tube outer wall, a plurality of packing grooves have been seted up to the undercoating inner wall, a;
the positioning groove is characterized in that grooves are formed in two sides of the top of the inner cavity of the positioning groove, a spring is arranged in the inner cavity of the groove, a clamping block is arranged at the other end of the spring, clamping grooves are formed in two sides of the top of the positioning strip and corresponding to the grooves, and the clamping block is clamped in the clamping grooves.
In a preferred embodiment, the filling groove is filled with an elastic rubber strip.
In a preferred embodiment, the inner liner and outer sleeve are stainless steel tubes.
In a preferred embodiment, the inner coating is an environmental resin coating.
In a preferred embodiment, the outer coating is a coated polyethylene coating.
In a preferred embodiment, a sealing steel ring is fixedly connected to both sides of the outer sleeve.
In a preferred embodiment, the width of the positioning strip is equal to the width of the inner cavity of the positioning groove, and the cross-sectional shapes of the positioning strip and the positioning groove are both rectangular.
In a preferred embodiment, the number of the filling grooves is four, and the four filling grooves are uniformly distributed at four corners of the inner cavity of the inner coating.
The utility model discloses a technological effect and advantage:
1. by arranging the inner lining pipe and the outer sleeve pipe, when the inner lining pipe and the outer sleeve pipe expand by heating, the inner coating on the inner side of the inner lining pipe can extend mutually through the filling groove arranged inside, meanwhile, the elastic silica gel filled in the filling groove can absorb part of stress, thereby effectively prolonging the service life of the inner coating of the lining pipe in an overheating environment, meanwhile, the outer sleeve can extrude the empty groove at the bottom of the outer coating when being heated and expanded, thereby avoiding the coating from being broken by the inner structure extruded by the expanded outer sleeve, the inner lining pipe and the outer sleeve pipe are clamped and fixed through the positioning strip and the positioning groove, so that the inner lining pipe and the outer sleeve pipe can be assembled by workers conveniently, the outer sleeve pipe effectively improves the external impact resistance, the stability of fixing the inner lining pipe after the equipment is arranged is ensured, the inner coating cannot be influenced, the service life of the coating is effectively prolonged, and the use requirement is met;
2. the utility model discloses a set up sealed steel ring, be the rectangle between location strip and the constant head tank, avoided interior bushing pipe to take place the axial excursion through interior bushing pipe of location strip card income bushing pipe inner chamber constant head tank back, guaranteed the stability of outer tube and the fixed joint of interior bushing pipe to the sealed steel ring in the outer tube outside can avoid air fluid etc. to get into through the gap between outer tube and the interior bushing pipe and cause the corruption, and sealed steel ring has made things convenient for the staff to weld, has satisfied the needs that use.
Drawings
Fig. 1 is a schematic view of a partial three-dimensional structure of the present invention.
Fig. 2 is a schematic view of the front view cross-sectional structure of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.
Fig. 4 is a schematic view of the three-dimensional structure of the lining tube of the present invention.
Fig. 5 is a schematic view of the three-dimensional structure of the positioning strip of the present invention.
The reference signs are: 1 inside lining pipe, 2 outer tube, 3 internal coating, 4 filling groove, 5 external coating, 6 empty groove, 7 constant head tank, 8 positioning strip, 9 sealing steel ring, 10 grooves, 11 spring, 12 fixture block, 13 draw-in groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a high performance long-life plastic-coated composite steel pipe as shown in fig. 1-3, including interior bushing 1, be equipped with interior coating 3 in interior bushing 1, interior coating 3 sprays at interior bushing 1 inner chamber, the lateral wall of interior bushing 1 is equipped with outer tube 2, outer tube 2 cup joints at interior bushing 1 lateral wall, the both sides of interior bushing 1 lateral wall all fixedly connected with location strip 8, constant head tank 7 has all been seted up to the both sides of outer tube 2 inner chamber, location strip 8 sliding connection is in constant head tank 7, the lateral wall of outer tube 2 is equipped with outer coating 5, outer coating 5 sprays at outer tube 2 outer wall, a plurality of packing groove 4 have been seted up to interior coating 3 inner wall, a plurality of dead slots 6 have been seted up to outer coating 5 inner wall;
the filling groove 4 is filled with an elastic rubber strip;
the lining pipe 1 and the outer sleeve 2 are both stainless steel pipes;
the inner coating 3 is an environmental resin coating;
the outer coating 5 is a coating polyethylene coating;
the number of the filling grooves 4 is four, and the four filling grooves 4 are uniformly distributed at four corners of the inner cavity of the inner coating 3.
The implementation mode is specifically as follows: when the lining pipe 1 and the outer sleeve 2 are heated and expanded, the inner coating 3 on the inner side of the lining pipe 1 can extend through the filling groove 4 arranged inside, so that coating abrasion caused by overlarge internal shear force of the integral inner coating 3 is avoided, meanwhile, elastic silica gel filled in the filling groove 4 can absorb a part of stress, the service life of the inner coating 3 of the lining pipe 1 in an overheat environment is effectively prolonged, meanwhile, the outer sleeve 2 can extrude the hollow groove 6 at the bottom of the outer coating 5 when being heated and expanded, the coating is prevented from being extruded by the expanded outer sleeve 2 to break the internal structure, the lining pipe 1 and the outer sleeve 2 are clamped and fixed through the positioning strip 8 and the positioning groove 7, the lining pipe 1 and the outer sleeve 2 are effectively and conveniently assembled by a worker, the spring 11 in the inner cavity of the outer sleeve 2 can drive the clamping block 12 to be clamped into the clamping groove 13 by the elasticity of the spring, and sliding, the outer sleeve 2 effectively improves the external impact resistance, ensures the stability of fixing the lining pipe 1 after the equipment, does not influence the inner coating 3, effectively prolongs the service life of the coating and meets the use requirement.
The utility model provides a high-performance long-life plastic-coated composite steel pipe as shown in figure 2 and figures 4-5, which also comprises an outer sleeve 2, wherein both sides of the outer sleeve 2 are fixedly connected with sealing steel rings 9;
the width of location strip 8 equals with the width of constant head tank 7 inner chamber, and location strip 8 and constant head tank 7 cross sectional shape are the rectangle.
The implementation mode is specifically as follows: be the rectangle between location strip 8 and the constant head tank 7, avoided interior bushing pipe 1 to go into interior bushing pipe 1 behind outer tube 2 inner chamber constant head tank 7 through location strip 8 card, guaranteed the stability of outer tube 2 and interior bushing pipe 1 fixed joint, and the sealed steel ring 9 in the outer tube 2 outside can avoid air fluid etc. to get into through the gap between outer tube 2 and the interior bushing pipe 1 and cause the corruption, and sealed steel ring 9 has made things convenient for the staff to weld, the needs that use have been satisfied.
The utility model discloses the theory of operation:
referring to the attached drawings 1-3 of the specification, when the inner lining pipe 1 and the outer sleeve 2 expand by heating, the inner coating 3 on the inner side of the inner lining pipe 1 can extend through the filling groove 4 arranged inside, meanwhile, elastic silica gel filled in the filling groove 4 can absorb a part of stress, the service life of the inner coating 3 of the inner lining pipe 1 in an overheating environment is effectively prolonged, meanwhile, the outer sleeve 2 can extrude the empty groove 6 at the bottom of the outer coating 5 when expanding by heating, the coating is prevented from being extruded by the expanded outer sleeve 2 to break the internal structure, and the inner lining pipe 1 and the outer sleeve 2 are clamped and fixed through the positioning strip 8 and the positioning groove 7, so that the inner lining pipe 1 and the outer sleeve 2 can be assembled by workers effectively, the outer sleeve 2 effectively improves the external impact resistance, the stability of the inner lining pipe 1 after being equipped is ensured, and the inner coating 3 cannot, the service life of the coating is effectively prolonged, and the use requirement is met;
referring to the attached drawings 2 and 4-5 of the specification, the positioning strips 8 and the positioning grooves 7 are rectangular, so that the axial offset of the lining pipe 1 after the lining pipe 1 is clamped into the positioning grooves 7 in the inner cavity of the outer sleeve 2 through the positioning strips 8 is avoided, the stability of the fixed clamping connection of the outer sleeve 2 and the lining pipe 1 is ensured, the sealing steel ring 9 on the outer side of the outer sleeve 2 can prevent air fluid and the like from entering through a gap between the outer sleeve 2 and the lining pipe 1 to cause corrosion, the sealing steel ring 9 facilitates welding of workers, and the use requirement is met.
And finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a compound steel pipe of high performance long-life plastic-coated, includes interior bushing pipe (1), its characterized in that: the inner lining pipe (1) is internally provided with an inner coating (3), the inner lining pipe (1) is sprayed with the inner coating (3), the outer side wall of the inner lining pipe (1) is provided with an outer sleeve (2), the outer sleeve (2) is sleeved on the outer side wall of the inner lining pipe (1), two sides of the outer side wall of the inner lining pipe (1) are fixedly connected with positioning strips (8), two sides of the inner cavity of the outer sleeve (2) are respectively provided with a positioning groove (7), the positioning strips (8) are connected in the positioning grooves (7) in a sliding manner, the outer side wall of the outer sleeve (2) is provided with an outer coating (5), the outer coating (5) is sprayed on the outer wall of the outer sleeve (2), the inner wall of the inner lining pipe (3) is provided with a plurality of filling grooves (4;
the locating groove is characterized in that grooves (10) are formed in two sides of the top of an inner cavity of the locating groove (7), springs (11) are arranged in the inner cavities of the grooves (10), clamping blocks (12) are arranged at the other ends of the springs (11), clamping grooves (13) are formed in two sides of the top of the locating strip (8) and corresponding positions of the grooves (10), and the clamping blocks (12) are clamped in the clamping grooves (13).
2. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: and the filling groove (4) is filled with an elastic rubber strip.
3. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: the lining pipe (1) and the outer sleeve (2) are both stainless steel pipes.
4. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: the inner coating (3) is an environmental resin coating.
5. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: the outer coating (5) is a coating polyethylene coating.
6. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: and both sides of the outer sleeve (2) are fixedly connected with sealing steel rings (9).
7. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: the width of the positioning strip (8) is equal to the width of the inner cavity of the positioning groove (7), and the cross sections of the positioning strip (8) and the positioning groove (7) are rectangular.
8. The high-performance long-life plastic-coated composite steel pipe as claimed in claim 1, wherein: the number of the filling grooves (4) is four, and the four filling grooves (4) are uniformly distributed at four corners of the inner cavity of the inner coating (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921170071.0U CN211259891U (en) | 2019-07-24 | 2019-07-24 | High-performance long-life plastic-coated composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921170071.0U CN211259891U (en) | 2019-07-24 | 2019-07-24 | High-performance long-life plastic-coated composite steel pipe |
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| Publication Number | Publication Date |
|---|---|
| CN211259891U true CN211259891U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921170071.0U Active CN211259891U (en) | 2019-07-24 | 2019-07-24 | High-performance long-life plastic-coated composite steel pipe |
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| Country | Link |
|---|---|
| CN (1) | CN211259891U (en) |
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2019
- 2019-07-24 CN CN201921170071.0U patent/CN211259891U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201225 Address after: 457000 northwest corner of the intersection of Minsheng Road and xingle Avenue, Nanle County, Puyang City, Henan Province Patentee after: Henan Tenglong Pipe Technology Co.,Ltd. Address before: 528244 shengshuitang Baigang Industrial Zone, Heshun Baigang village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee before: Foshan Nanhai Qifeng Steel Pipe Co.,Ltd. |
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| TR01 | Transfer of patent right |