CN212935413U - Lining stainless steel composite steel pipe structure - Google Patents
Lining stainless steel composite steel pipe structure Download PDFInfo
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- CN212935413U CN212935413U CN202021309779.2U CN202021309779U CN212935413U CN 212935413 U CN212935413 U CN 212935413U CN 202021309779 U CN202021309779 U CN 202021309779U CN 212935413 U CN212935413 U CN 212935413U
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Abstract
The utility model relates to a stainless steel lined composite steel pipe structure, which is characterized by comprising a stainless steel inner pipe, an insulating outer pipe, a stainless steel limiting pipe and a plurality of screws, wherein the stainless steel inner pipe is provided with a first inner hole and a plurality of threaded holes; the insulating outer pipe is provided with a second inner hole, a first convex ring part, a plurality of convex parts, a sleeve penetrating hole and a second convex ring part, and the insulating outer pipe is sleeved on the stainless steel inner pipe; the stainless steel limiting pipe is provided with a third inner hole, a plurality of through holes and a third convex ring part; the other end of the stainless steel limiting pipe is embedded in the first inner hole, each nesting hole is respectively sleeved on the corresponding boss, the third convex ring part is positioned on the inner side of the second convex ring part, and each screw penetrates through each through hole and then is in threaded connection with the corresponding threaded hole. The utility model discloses an it is outer to be insulating outer tube, can play fine insulating effect like this to help improving the security, and insulating outer tube can dismantle, this helps reducing the maintenance cost, this inside lining stainless steel composite steel pipe structure's reliability is very high.
Description
Technical Field
The utility model relates to a tubular product field, especially a inside lining stainless steel composite steel pipe structure.
Background
Currently, many conduits are made of stainless steel in order to increase their structural strength. Because the existing conduit only adopts a stainless steel pipe, when a lead in the conduit is damaged, the conduit is also electrified, so that safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned problem and not enough, provide a inside lining stainless steel composite steel tubular construction, this inside lining stainless steel composite steel tubular construction's skin is insulating outer tube, can play fine insulating effect like this to help improving the security, and insulating outer tube can dismantle, this helps reducing the maintenance cost, this inside lining stainless steel composite steel tubular construction's reliability is very high.
The technical scheme of the utility model is realized like this:
a stainless steel lined composite steel pipe structure is characterized by comprising a stainless steel inner pipe, an insulating outer pipe, a stainless steel limiting pipe and a plurality of screws, wherein a first inner hole is formed in the stainless steel inner pipe; a second inner hole is formed in the insulating outer pipe in a forming mode, a first convex ring portion is formed in the outer circumferential surface of the end portion of the insulating outer pipe in an integrated mode, a plurality of protruding portions are formed in the outer end face of the first convex ring portion in an integrated mode, the protruding portions are arranged in the hole openings surrounding the second inner hole, penetrating holes are formed in the end face of each protruding portion respectively and penetrate through the penetrating holes to the inner end face of the first convex ring portion, a circle of second convex ring portion is formed in the peripheral side edge of the outer end face of the first convex ring portion in an integrated mode, the insulating outer pipe can be detachably sleeved on the stainless steel inner pipe, and the end face of the insulating outer pipe and the end face of the stainless steel inner pipe are located in the same plane; a third inner hole is formed in the stainless steel limiting pipe, a plurality of through holes are formed in the hole wall of the third inner hole, the through holes are arranged around the axial center line of the third inner hole, the positions of the through holes are in one-to-one correspondence with the positions of the threaded holes, the through holes penetrate through the outer circumferential surface of the stainless steel limiting pipe, a third convex ring portion is integrally formed on the circumferential surface of one end of the stainless steel limiting pipe, a plurality of nesting holes are formed in the outer end face of the third convex ring portion, the nesting holes penetrate through the inner end face of the third convex ring portion, and the nesting holes are in one-to-one correspondence with the positions of the convex portions; the other end of the stainless steel limiting pipe is embedded in the first inner hole, the through holes are communicated with the corresponding threaded holes in a butt joint mode, the nesting holes are sleeved on the corresponding protruding portions respectively, the third protruding ring portion is located on the inner side of the second protruding ring portion, and the screws penetrate through the through holes respectively and then are in threaded connection with the corresponding threaded holes.
Preferably, the outer surface of the stainless steel inner tube is provided with a plurality of protruding bar portions, the length direction of each protruding bar portion is in the same direction as the length direction of the stainless steel inner tube, the hole wall of the second inner hole is provided with a plurality of grooves, the length direction of each groove is in the same direction as the length direction of the insulating outer tube, the positions of the grooves are in one-to-one correspondence with the positions of the protruding bar portions, the grooves extend to the end faces of the two ends of the insulating outer tube, and the grooves are respectively clamped on the corresponding protruding bar portions.
The utility model has the advantages that: the utility model discloses an among the inside lining stainless steel composite steel tubular construction, through can dismantle the ground suit with insulating outer tube on the stainless steel inner tube, can play fine insulating effect like this, can make the tubular construction have high structural strength again simultaneously, this inside lining stainless steel composite steel tubular construction's reliability is very high. Because the ageing speed of insulating outer tube and stainless steel inner tube is different, and the ageing speed of insulating outer tube is generally faster than the stainless steel inner tube, through making insulating outer tube adopt the mounting means installation that can dismantle like this, can be after insulating outer tube is ageing or impaired, conveniently change the insulating outer tube of new, this need not wholly scrap inside lining stainless steel composite steel tube structure, this maintenance cost that can reduce inside lining stainless steel composite steel tube structure effectively. The through-hole is formed in the protruding portion, so that the screw can be conveniently inserted, two stainless steel lined composite steel pipe structures can be connected in series through the screw, and the applicability of the stainless steel lined composite steel pipe structure is improved. Because insulating outer tube, first protruding ring portion, second protruding ring portion and each bellying structure as an organic whole, they all have fine insulating effect like this, and first protruding ring portion can play the purpose of sheltering from third protruding ring portion with second protruding ring portion, through the setting of bellying, can form isolated effect in the nested hole to avoid screw direct contact to third protruding ring portion, can further improve this inside lining stainless steel composite steel tubular construction's security like this. Through the arrangement of the stainless steel limiting pipe and the integral forming of the third convex ring part on the stainless steel limiting pipe, the third convex ring part can play a good limiting role on the insulating outer pipe, so that the situation that the insulating outer pipe slips off is avoided; and through the setting of third bulge loop portion to make the bellying inlay and adorn on third bulge loop portion, when wearing to put the screw in the trepanning like this, the screw can pass third bulge loop portion naturally, when concatenating two inside lining stainless steel composite steel pipe structures together through the screw like this, can guarantee that the junction has high structural strength. By arranging the screw in the third inner hole and fixing the stainless steel limiting pipe by the screw, the reliability of the installation and the positioning of the stainless steel limiting pipe is improved. The screw can be conveniently hidden, so that the efficiency of screw corrosion is reduced, and the reliability of the lining stainless steel composite steel pipe structure is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the section a-a in fig. 1 according to the present invention.
Fig. 3 is an enlarged schematic structural view of a portion B in fig. 1 according to the present invention.
Fig. 4 is one of the structural schematic diagrams of the stainless steel inner tube of the present invention.
Fig. 5 is a second schematic structural view of the stainless steel inner tube according to the present invention.
Fig. 6 is a schematic structural diagram of the middle insulating outer tube according to the present invention.
Fig. 7 is a second schematic structural view of the middle insulation outer tube according to the present invention.
Fig. 8 is a schematic structural view of the stainless steel spacing tube of the present invention.
Detailed Description
As shown in fig. 1, the composite steel pipe structure lined with stainless steel of the present invention comprises a stainless steel inner pipe 1, an insulating outer pipe 2, a stainless steel limiting pipe 3, and a plurality of screws 4, wherein, as shown in fig. 4, a first inner hole 11 is formed on the stainless steel inner pipe 1, a plurality of threaded holes 12 are formed on the hole wall of the first inner hole 11, and each threaded hole 12 is arranged around the axial center line of the first inner hole 11; as shown in fig. 1 to 3 and 6, a second inner hole 21 is formed in the insulating outer tube 2, a first protruding ring portion 22 is integrally formed on the outer circumferential surface of the end portion of the insulating outer tube 2, a plurality of protruding portions 23 are integrally formed on the outer end surface of the first protruding ring portion 22, the protruding portions 23 are arranged in an orifice surrounding the second inner hole 21, sleeve holes 24 are respectively formed in the end surfaces of the protruding portions 23, the sleeve holes 24 penetrate through the inner end surface of the first protruding ring portion 22, a circle of second protruding ring portion 25 is integrally formed on the peripheral side edge of the outer end surface of the first protruding ring portion 22, the insulating outer tube 2 is detachably sleeved on the stainless steel inner tube 1, and the end surface of the insulating outer tube 2 and the end surface of the stainless steel inner tube 1 are located in the same plane; as shown in fig. 1 and 8, a third inner hole 31 is formed in the stainless steel limiting tube 3, a plurality of through holes 32 are formed in a hole wall of the third inner hole 31, the through holes 32 are arranged around an axial center line of the third inner hole 31, positions of the through holes 32 correspond to positions of the threaded holes 12 one by one, the through holes 32 penetrate through an outer circumferential surface of the stainless steel limiting tube 3, a third protruding ring portion 33 is integrally formed on a circumferential surface of one end of the stainless steel limiting tube 3, a plurality of nesting holes 34 are formed in an outer end surface of the third protruding ring portion 33, the nesting holes 34 penetrate through an inner end surface of the third protruding ring portion 33, and the nesting holes 34 correspond to positions of the protruding portions 23 one by one; as shown in fig. 1 to 3, the other end of the stainless steel stopper tube 3 is fitted into the first inner hole 11, the through holes 32 are in abutting communication with the corresponding threaded holes 12, the fitting holes 34 are fitted to the corresponding bosses 23, the third collar portion 33 is located inside the second collar portion 25, and the screws 4 are screwed into the corresponding threaded holes 12 after passing through the through holes 32. The utility model discloses an among the inside lining stainless steel composite steel tubular construction, through can dismantle the ground suit with insulating outer tube 2 on stainless steel inner tube 1, can play fine insulating effect like this, can make the tubular construction have high structural strength again simultaneously, this inside lining stainless steel composite steel tubular construction's reliability is very high. Because the ageing rate of insulating outer tube 2 and stainless steel inner tube 1 is different, and the ageing rate of insulating outer tube 2 is generally faster than stainless steel inner tube 1, through making insulating outer tube 2 adopt the mounting means installation that can dismantle like this, can be in insulating outer tube 2 ageing or impaired back, conveniently change new insulating outer tube 2, this need not wholly scrap the compound steel pipe structure of inside lining stainless steel, this maintenance cost that can reduce the compound steel pipe structure of inside lining stainless steel effectively. The through holes 24 are formed in the protruding portions 23, so that screws can be conveniently inserted, two stainless steel lined composite steel pipe structures can be connected in series through the screws, and the applicability of the stainless steel lined composite steel pipe structures is improved. Because insulating outer tube 2, first protruding ring portion 22, second protruding ring portion 25 and each bellying 23 structure as an organic whole, they all have fine insulating action like this, and first protruding ring portion 22 and second protruding ring portion 25 can play the purpose of sheltering from third protruding ring portion 33, through the setting of bellying 23, can form isolated effect in nested hole 34, in order to avoid the screw direct contact to third protruding ring portion 33, can further improve this inside lining stainless steel composite steel tubular construction's security like this. Through the arrangement of the stainless steel limiting pipe 3 and the integral forming of the third convex ring part 33 on the stainless steel limiting pipe 3, the third convex ring part 33 can play a good limiting role on the insulating outer pipe 2, so that the situation that the insulating outer pipe 2 slides down is avoided; and through the setting of third bulge loop portion 33 to make bellying 23 inlay and adorn on third bulge loop portion 33, when wearing to put the screw in trepanning 24 like this, the screw can pass third bulge loop portion 33 naturally, when concatenating two inside lining stainless steel composite steel pipe structures together through the screw like this, can guarantee that the junction has high structural strength. This helps improve the reliability of the installation positioning of the stainless steel stopper tube 3 by disposing the screw 4 in the third inner hole 31 and fixing the stainless steel stopper tube 3 by the screw 4. Therefore, the screw 4 can be conveniently hidden, so that the efficiency of rusting the screw 4 is reduced, and the reliability of the stainless steel composite steel pipe structure with the lining is improved.
The insulating outer tube 2 is a glass fiber insulating sleeve or a PVC sleeve or a Teflon sleeve and the like.
In the actual manufacturing process, the stainless steel limiting pipes 3 can be arranged at the two ends of the stainless steel lined composite steel pipe structure, and the first convex ring part 22 and the second convex ring part 25 are correspondingly made, so that the aim of connecting a plurality of stainless steel lined composite steel pipe structures in series can be fulfilled.
As shown in fig. 2, 5 and 7, a plurality of convex bar portions 13 are provided on the outer surface of the stainless steel inner tube 1, the length direction of each convex bar portion 13 is the same as the length direction of the stainless steel inner tube 1, a plurality of groove portions 211 are provided on the hole wall of the second inner hole 21, the length direction of each groove portion 211 is the same as the length direction of the insulating outer tube 2, the positions of the groove portions 211 are corresponding to the positions of the convex bar portions 13 one by one, the groove portions 211 extend to the end faces of the two ends of the insulating outer tube 2, and the groove portions 211 are respectively clamped on the corresponding convex bar portions 13. Through the arrangement of the convex strip parts 13 and the strip-shaped grooves 211, the condition that the insulating outer tube 2 rotates randomly can be avoided, and the reliability of the installation and the positioning of the insulating outer tube 2 is further improved.
Claims (2)
1. The utility model provides a inside lining stainless steel composite steel pipe structure which characterized in that: the stainless steel pipe joint comprises a stainless steel inner pipe (1), an insulating outer pipe (2), a stainless steel limiting pipe (3) and a plurality of screws (4), wherein a first inner hole (11) is formed in the stainless steel inner pipe (1), a plurality of threaded holes (12) are formed in the hole wall of the first inner hole (11), and the threaded holes (12) are arranged around the axial center line of the first inner hole (11); a second inner hole (21) is formed in the insulating outer tube (2), a first convex ring portion (22) is formed on the outer circumferential surface of the end portion of the insulating outer tube (2) in an integrated mode, a plurality of protruding portions (23) are formed on the outer end face of the first convex ring portion (22) in an integrated mode, the protruding portions (23) are arranged in an orifice surrounding the second inner hole (21), sleeve penetrating holes (24) are formed in the end face of each protruding portion (23) respectively, each sleeve penetrating hole (24) penetrates through the inner end face of the first convex ring portion (22), a circle of second convex ring portion (25) is formed on the periphery side edge of the outer end face of the first convex ring portion (22) in an integrated mode, the insulating outer tube (2) is detachably sleeved on the stainless steel inner tube (1), and the end face of the insulating outer tube (2) and the end face of the stainless steel inner tube (1) are located in the same plane; a third inner hole (31) is formed in the stainless steel limiting pipe (3), a plurality of through holes (32) are formed in the hole wall of the third inner hole (31), the through holes (32) are arranged around the axial center line of the third inner hole (31), the positions of the through holes (32) are in one-to-one correspondence with the positions of the threaded holes (12), the through holes (32) penetrate through the outer circumferential surface of the stainless steel limiting pipe (3), a third convex ring portion (33) is integrally formed on the circumferential surface of one end of the stainless steel limiting pipe (3), a plurality of embedded holes (34) are formed in the outer end surface of the third convex ring portion (33), the embedded holes (34) penetrate through the inner end surface of the third convex ring portion (33), and the embedded holes (34) are in one-to-one correspondence with the positions of the convex portions (23); the other end of the stainless steel limiting pipe (3) is embedded in the first inner hole (11), each through hole (32) is communicated with the corresponding threaded hole (12) in a butt joint mode, each embedding hole (34) is respectively sleeved on the corresponding protruding portion (23), the third protruding ring portion (33) is located on the inner side of the second protruding ring portion (25), and each screw (4) penetrates through each through hole (32) and then is in threaded connection with the corresponding threaded hole (12).
2. The lined stainless steel composite steel pipe structure of claim 1, wherein: the outer surface of the stainless steel inner pipe (1) is provided with a plurality of convex strip portions (13), the length direction of each convex strip portion (13) is enabled to be in the same direction with the length direction of the stainless steel inner pipe (1), the hole wall of the second inner hole (21) is provided with a plurality of strip-shaped grooves (211), the length direction of each strip-shaped groove (211) is enabled to be in the same direction with the length direction of the insulating outer pipe (2), the positions of the strip-shaped grooves (211) are enabled to correspond to the positions of the convex strip portions (13) one by one, the strip-shaped grooves (211) extend to the end faces of the two ends of the insulating outer pipe (2), and the strip-shaped grooves (211) are respectively clamped on the corresponding convex strip portions (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021309779.2U CN212935413U (en) | 2020-07-06 | 2020-07-06 | Lining stainless steel composite steel pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021309779.2U CN212935413U (en) | 2020-07-06 | 2020-07-06 | Lining stainless steel composite steel pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212935413U true CN212935413U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021309779.2U Active CN212935413U (en) | 2020-07-06 | 2020-07-06 | Lining stainless steel composite steel pipe structure |
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| Country | Link |
|---|---|
| CN (1) | CN212935413U (en) |
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2020
- 2020-07-06 CN CN202021309779.2U patent/CN212935413U/en active Active
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