CN114215968A - Steel belt embedded type ultra-high molecular weight polyethylene composite pipe - Google Patents
Steel belt embedded type ultra-high molecular weight polyethylene composite pipe Download PDFInfo
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- CN114215968A CN114215968A CN202111629813.3A CN202111629813A CN114215968A CN 114215968 A CN114215968 A CN 114215968A CN 202111629813 A CN202111629813 A CN 202111629813A CN 114215968 A CN114215968 A CN 114215968A
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- ring
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- molecular weight
- high molecular
- weight polyethylene
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
- F16L9/128—Reinforced pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/14—Flanged joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a steel belt embedded type ultra-high molecular weight polyethylene composite pipe, which comprises a pipe body and a pipe frame mechanism, wherein the pipe body is positioned in the pipe frame mechanism, the rear end of the pipe body is flatly supported with the rear end of the pipe frame mechanism, and the front end of the pipe body is positioned outside the pipe frame mechanism; a plurality of inserting rods which are distributed at equal intervals are fixedly arranged on the outer side of the tube body, the rear ends of the inserting rods are flush with the rear end of the tube body, the front ends of the inserting rods are flush with the front end of the tube body, and the front ends of the outer sides of the inserting rods are connected together through a connecting mechanism I; the pipe support mechanism comprises a plurality of reinforcing rings which are distributed at equal intervals in the front and back direction, and the plurality of reinforcing rings are positioned on the same central line. The pipe body and the pipe frame mechanism can be quickly assembled together by matching the mounting mechanism and the connecting mechanism I; meanwhile, through the matching of the mounting mechanism and the connecting mechanism I on one composite pipe and the connecting mechanism II on the other composite pipe with the same specification, two composite pipes with the same specification can be quickly connected together.
Description
Technical Field
The invention relates to the technical field of composite pipes, in particular to a steel belt embedded type ultra-high molecular weight polyethylene composite pipe.
Background
Polyethylene and PE are thermoplastic resins obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. The polyethylene is odorless and nontoxic, feels like wax, has excellent low-temperature resistance (the lowest use temperature can reach-100 to-70 ℃), has good chemical stability, and can resist corrosion of most of acid and alkali (cannot resist acid with oxidation property). Is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation. Polyethylene, an ultra-high molecular weight polyethylene, is a thermoplastic engineering plastic with the average molecular weight of more than 200 ten thousand, which is polymerized by ethylene and butadiene monomers under the action of a catalyst, and is an engineering plastic with impact resistance, wear resistance, good self-lubricating property and excellent low-temperature property.
The existing high molecular weight polyethylene composite pipe cannot adapt to an ultrahigh pressure environment, has limited structural strength, needs to be hot-melted at two ends for connection because of large volume in the later installation process, and then is connected, but the installation mode is complex and inconvenient, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a steel belt embedded type ultra-high molecular weight polyethylene composite pipe, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the steel belt embedded type ultra-high molecular weight polyethylene composite pipe comprises a pipe body and a pipe frame mechanism, wherein the pipe body is positioned in the pipe frame mechanism, the rear end of the pipe body is flatly supported with the rear end of the pipe frame mechanism, and the front end of the pipe body is positioned outside the pipe frame mechanism; a plurality of inserting rods which are distributed at equal intervals are fixedly arranged on the outer side of the tube body, the rear ends of the inserting rods are flush with the rear end of the tube body, the front ends of the inserting rods are flush with the front end of the tube body, and the front ends of the outer sides of the inserting rods are connected together through a connecting mechanism I; pipe support mechanism include the beaded finish of several front and back equidistant distribution, the several beaded finish is located same central line, link together through the stiffener of several equidistant distribution between the several beaded finish inboard, both ends all are located the beaded finish outside around the stiffener, lie in and form the slot between the double-phase adjacent stiffener of one end, the slot is corresponding with the inserted bar, and the inserted bar inserts two slots that are located same central line, link together through installation mechanism between the outside front end of several stiffener, link together through coupling mechanism II between the outside rear end of several stiffener.
According to the steel belt embedded type ultra-high molecular weight polyethylene composite pipe, the connecting mechanism I comprises the connecting ring I, the connecting ring I is fixedly connected to the front ends of the outer sides of the inserting rods, a plurality of I connecting pieces which are distributed at equal intervals are fixedly arranged on the outer sides of the connecting ring I, and the connecting groove is formed in the middle of each connecting piece I.
As above embedded ultra high molecular weight polyethylene composite pipe of steel band, installation mechanism include the collar, the collar outside fixed mounting several sets of equidistant installation device that distributes, every group installation device comprises two installation pieces, be located and be equipped with the sliding seat between two installation piece inboards of same group, fixedly connected with pivot in the middle of the sliding seat both sides, be connected through the bearing between pivot outer end and the corresponding installation piece, set up the screw through hole in the middle of the sliding seat, be equipped with the bolt in the screw through hole, bolt and screw through hole screw-thread fit, bolt outer end spiro union has the nut, the bolt is corresponding with spread groove I, the bolt can be changeed to in the spread groove I that corresponds, and can be in the spread groove I back-and-forth movement that corresponds.
As above embedded ultra high molecular weight polyethylene composite pipe of steel band, coupling mechanism II include go-between II, go-between II fixed connection in several stiffener outside rear end, go-between II outside fixed mounting several equidistant connection piece II of distribution, the spread groove II has been seted up to the middle of the connection piece II, the bolt can be in the spread groove II back-and-forth movement that corresponds.
According to the steel belt embedded type ultra-high molecular weight polyethylene composite pipe, the connecting ring is attached to the mounting ring, the connecting ring II is attached to the reinforcing ring located at the rearmost part, and the mounting ring is attached to the reinforcing ring located at the frontmost part.
According to the steel belt embedded type ultra-high molecular weight polyethylene composite pipe, the heat dissipation ring is arranged between every two adjacent reinforcing rings, the heat conduction silica gel layer is arranged on the inner side of each heat dissipation ring, and the inner side of each heat dissipation ring is fixedly connected with the reinforcing rod.
According to the steel belt embedded type ultra-high molecular weight polyethylene composite pipe, the inner diameters and the outer diameters of the connecting ring II and the mounting ring are the same, the inner diameters of the reinforcing ring, the mounting ring and the heat dissipation ring are the same, the outer diameter of the mounting ring is smaller than that of the reinforcing ring, and the outer diameter of the reinforcing ring is smaller than that of the mounting ring.
According to the steel belt embedded type ultra-high molecular weight polyethylene composite pipe, the inserted bar and the reinforcing bar are the same in height.
According to the steel belt embedded type ultra-high molecular weight polyethylene composite pipe, the connecting ring I and the connecting ring II have the same size, the connecting sheet I and the connecting sheet II have the same size, and the connecting groove I and the connecting groove II have the same size.
The invention has the advantages that: the pipe body and the pipe frame mechanism can be quickly assembled together by matching the mounting mechanism and the connecting mechanism I; meanwhile, through the matching of the mounting mechanism and the connecting mechanism I on one composite pipe and the connecting mechanism II on the other composite pipe with the same specification, two composite pipes with the same specification can be quickly connected together.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a rear view of FIG. 1; FIG. 3 is a schematic structural view of the tube body; FIG. 4 is a schematic structural view of the tube rack mechanism; FIG. 5 is a rear view of FIG. 4; fig. 6 is an enlarged view of part I of fig. 4.
Reference numerals: 1. a tube body; 2. inserting a rod; 3. a reinforcement ring; 4. a reinforcing bar; 5. a slot; 6. a connecting ring I; 7. connecting a sheet I; 8. connecting groove I; 9. a mounting ring; 10. mounting blocks; 11. a movable seat; 12. a rotating shaft; 13. a threaded through hole; 14. a bolt; 15. a nut; 16. a connecting ring II; 17. connecting a sheet II; 18. connecting groove II; 19. and a heat dissipation ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6, the steel belt embedded ultra-high molecular weight polyethylene composite pipe comprises a pipe body 1 and a pipe frame mechanism, wherein the pipe body 1 is positioned in the pipe frame mechanism, the rear end of the pipe body 1 is flatly supported with the rear end of the pipe frame mechanism, and the front end of the pipe body 1 is positioned outside the pipe frame mechanism; a plurality of inserting rods 2 which are distributed at equal intervals are fixedly arranged on the outer side of the tube body 1, the rear ends of the inserting rods 2 are flatly supported with the rear end of the tube body 1, the front ends of the inserting rods 2 are flatly supported with the front end of the tube body 1, and the front ends of the outer sides of the inserting rods 2 are connected together through a connecting mechanism I; pipe support mechanism include the beaded finish 3 of equidistant distribution around the several, several beaded finish 3 is located same central line, link together through the stiffener 4 of the equidistant distribution of several between 3 inboards of several beaded finish, both ends all are located 3 outsides of beaded finish around the stiffener 4, it forms slot 5 to be located between two adjacent stiffeners 4 of same end, slot 5 is corresponding with inserted bar 2, and inserted bar 2 inserts two slots 5 that are located same central line, link together through installation mechanism between the 4 outside front ends of several stiffener, link together through coupling mechanism II between the 4 outside rear ends of several stiffener. When the composite pipe is assembled, the rear end of the pipe body 1 is aligned with the front end of the pipe frame mechanism, the inserted rod 2 on the pipe body 1 is aligned with the slot 5 of the pipe frame mechanism, so that the rear end of the pipe body 1 extends into the pipe frame mechanism from the front end of the pipe frame mechanism, then the bolt 14 is turned into the corresponding connecting groove I8 according to the characteristic that the movable seat 11 can rotate in the middle of the inner sides of the two corresponding mounting blocks 10, and finally the nut 15 is screwed, so that the connection between the pipe body 1 and the pipe frame mechanism can be fastened; when the composite pipe is used, two composite pipes with the same specification need to be connected, and the concrete operation is as follows: firstly, a nut 15 on one of the composite pipes is unscrewed, then a bolt 14 is rotated, as the bolt 14 is in threaded fit with a threaded through hole 13, and the movable seat 11 cannot rotate along with the bolt 14 under the limitation of a rotating shaft 12, the bolt 14 moves backwards along the threaded through hole 13, the bolt 14 continues to be rotated until the front end of the bolt is flush with the front side of the movable seat 11, then the other composite pipe is taken, a connecting mechanism II on the other composite pipe is aligned with and attached to a connecting mechanism I on the one composite pipe, then the bolt 14 rotates backwards, the bolt 14 moves forwards along the threaded through hole 13, the bolt 14 moves forwards along a connecting groove I8 and a connecting groove II18, the bolt 14 continues to rotate backwards until the rear end of the bolt 14 is in contact with the movable seat 11, and finally the nut 15 is screwed again, so that the two composite pipes with the communicated specifications can be quickly connected together; when the pipe body 1 works in an ultrahigh pressure environment, the structural strength of the pipe body 1 can be enhanced to the maximum extent by the cylindrical frame consisting of the reinforcing rings 3 and the reinforcing rods 4, so that the pipe body 1 can adapt to the ultrahigh pressure working environment, meanwhile, the arranged heat dissipation rings 16 can be further matched with the reinforcing rods 4, the structural strength of the pipe body 1 is further enhanced by the formed dense cylindrical frame, and the heat inside the pipe body 1 can be quickly led out and dissipated to the outside by the heat dissipation rings 16, so that the heat resistance of the pipe body 1 is enhanced; the pipe body 1 and the pipe frame mechanism can be quickly assembled together by matching the mounting mechanism and the connecting mechanism I; meanwhile, through the matching of the mounting mechanism and the connecting mechanism I on one composite pipe and the connecting mechanism II on the other composite pipe with the same specification, two composite pipes with the same specification can be quickly connected together.
Specifically, the connection mechanism I described in this embodiment includes a connection ring I6, a connection ring I6 is fixedly connected to the front ends of the outer sides of the plurality of insertion rods 2, a plurality of I connection pieces 7 are fixedly mounted on the outer side of the connection ring I6 and are distributed at equal intervals, and a connection groove 8 is formed in the middle of the connection piece I7.
Specifically, this embodiment installation mechanism include collar 9, collar 9 outside fixed mounting several sets of equidistant installation device that distributes, every group installation device comprises two installation pieces 10, it is equipped with sliding seat 11 to be located between two installation pieces 10 inboards of same group, fixedly connected with pivot 12 in the middle of the sliding seat 11 both sides, be connected through the bearing between pivot 12 outer end and the corresponding installation piece 10, set up threaded through hole 13 in the middle of the sliding seat 11, be equipped with bolt 14 in the threaded through hole 13, bolt 14 and threaded through hole 13 screw-thread fit, bolt 14 outer end spiro union has nut 15, bolt 14 is corresponding with spread groove I8, bolt 14 can turn to in the spread groove I8 that corresponds, and can be in the back-and-forth movement in the spread groove I8 that corresponds.
Furthermore, the connection mechanism II described in this embodiment includes a connection ring II16, the connection ring II16 is fixedly connected to the rear end of the outer side of the plurality of reinforcing rods 4, the outer side of the connection ring II16 is fixedly provided with a plurality of connection pieces II17 distributed at equal intervals, the middle of the connection piece II17 is provided with a connection groove II18, and the bolt 14 can move back and forth in the corresponding connection groove I I18.
Further, the connection ring 6 of the present embodiment is attached to the mounting ring 9, the connection ring II6 is attached to the reinforcement ring 3 located at the rearmost, and the mounting ring 9 is attached to the reinforcement ring 3 located at the frontmost.
Furthermore, in the embodiment, a heat dissipation ring 19 is disposed between two adjacent reinforcing rings 3, a heat conductive silicone layer is disposed on an inner side of the heat dissipation ring 19, and an inner side of the heat dissipation ring 19 is fixedly connected to the reinforcing rod 4. Structural strength of pipe shaft 4 can further be strengthened through the cooling ring 19 that sets up, and cooling ring 19 can give off the outside with the inside heat of pipe shaft 1, quick derivation simultaneously to the heat resistance of pipe shaft 1 has been strengthened.
Furthermore, the inner and outer diameters of the connection ring II16 and the mounting ring 9 in this embodiment are the same, the inner diameters of the reinforcement ring 3, the mounting ring 9 and the heat dissipation ring 19 are the same, the outer diameter of the mounting ring 9 is smaller than the outer diameter of the reinforcement ring 3, and the outer diameter of the reinforcement ring 3 is smaller than the outer diameter of the mounting ring 9.
Furthermore, the inserted bar 2 and the reinforcing bar 4 of the present embodiment have the same height.
Furthermore, the connecting ring I6 and the connecting ring II16 in this embodiment have the same size, the connecting piece I7 and the connecting piece II17 have the same size, and the connecting groove I8 and the connecting groove II18 have the same size.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The steel belt embedded type ultra-high molecular weight polyethylene composite pipe is characterized in that: the pipe support device comprises a pipe body (1) and a pipe support mechanism, wherein the pipe body (1) is positioned in the pipe support mechanism, the rear end of the pipe body (1) is flatly supported with the rear end of the pipe support mechanism, and the front end of the pipe body (1) is positioned outside the pipe support mechanism; a plurality of inserting rods (2) which are distributed at equal intervals are fixedly arranged on the outer side of the tube body (1), the rear ends of the inserting rods (2) are flush with the rear end of the tube body (1), the front ends of the inserting rods (2) are flush with the front end of the tube body (1), and the front ends of the outer sides of the inserting rods (2) are connected together through a connecting mechanism I; pipe support mechanism include stiffener ring (3) of equidistant distribution around the several, several stiffener ring (3) are located same central line, stiffener (4) through the equidistant distribution of several link together between several stiffener ring (3) inboard, both ends all are located stiffener ring (3) outside around stiffener (4), it forms slot (5) to be located between two adjacent stiffener (4) of same end, slot (5) are corresponding with inserted bar (2), and inserted bar (2) insert two slots (5) that are located same central line, link together through installation mechanism between several stiffener (4) outside front end, link together through coupling mechanism II between several stiffener (4) outside rear end.
2. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: coupling mechanism I include go-between I (6), go-between I (6) fixed connection in several inserted bar (2) outside front end, go-between I (6) outside fixed mounting several equidistant I connection piece (7) of distributing, spread groove (8) have been seted up in the middle of connection piece I (7).
3. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: installation mechanism include collar (9), collar (9) outside fixed mounting several sets of equidistant distribution's installation device, every installation device of group comprises two installation piece (10), be located and be equipped with sliding seat (11) between two installation piece (10) inboards of same group, fixedly connected with pivot (12) in the middle of sliding seat (11) both sides, be connected through the bearing between pivot (12) outer end and the corresponding installation piece (10), screw through hole (13) are seted up in the middle of sliding seat (11), be equipped with bolt (14) in screw through hole (13), bolt (14) and screw through hole (13) screw-thread fit, bolt (14) outer end spiro union has nut (15), bolt (14) and spread groove I (8) are corresponding, bolt (14) can be changeed to in the spread groove I (8) that corresponds, and can be in the spread groove I (8) back-and-forth movement that corresponds.
4. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: coupling mechanism II include go-between II (16), go-between II (16) fixed connection in several stiffener (4) outside rear end, go-between II (16) outside fixed mounting several equidistant distribution's connection piece II (17), connection groove II (18) have been seted up in the middle of connection piece II (17), bolt (14) can be in the back-and-forth movement of the connection groove II (18) that corresponds.
5. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: go up go-between (6) and collar (9) laminating together, go-between II (6) and the stiffener ring (3) laminating that is located the rear are in the same place, collar (9) and the stiffener ring (3) laminating that is located the forefront are in the same place.
6. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: and a heat dissipation ring (19) is arranged between every two adjacent reinforcing rings (3), a heat conduction silica gel layer is arranged on the inner side of each heat dissipation ring (19), and the inner side of each heat dissipation ring (19) is fixedly connected with the reinforcing rod (4).
7. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: the inner diameter and the outer diameter of the connecting ring II (16) are the same as those of the mounting ring (9), the inner diameters of the reinforcing ring (3), the mounting ring (9) and the heat dissipation ring (19) are the same, the outer diameter of the mounting ring (9) is smaller than that of the reinforcing ring (3), and the outer diameter of the reinforcing ring (3) is smaller than that of the mounting ring (9).
8. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: the inserted bar (2) and the reinforcing bar (4) have the same height.
9. The steel belt embedded ultra-high molecular weight polyethylene composite pipe according to claim 1, characterized in that: the connecting ring I (6) and the connecting ring II (16) are the same in size, the connecting piece I (7) and the connecting piece II (17) are the same in size, and the connecting groove I (8) and the connecting groove II (18) are the same in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111629813.3A CN114215968A (en) | 2021-12-28 | 2021-12-28 | Steel belt embedded type ultra-high molecular weight polyethylene composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111629813.3A CN114215968A (en) | 2021-12-28 | 2021-12-28 | Steel belt embedded type ultra-high molecular weight polyethylene composite pipe |
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| Publication Number | Publication Date |
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| CN114215968A true CN114215968A (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111629813.3A Pending CN114215968A (en) | 2021-12-28 | 2021-12-28 | Steel belt embedded type ultra-high molecular weight polyethylene composite pipe |
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Citations (7)
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| JP2009174615A (en) * | 2008-01-23 | 2009-08-06 | Nippon Kansen Kogyo Kk | Flange coupling and metal pipe joining structure |
| CN106369239A (en) * | 2016-10-11 | 2017-02-01 | 鞍钢集团矿业有限公司 | High polymer material composite pipeline high-pressure-resistant telescopic pipe joint and connecting method thereof |
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| CN212156178U (en) * | 2020-03-16 | 2020-12-15 | 郑州天源橡胶有限公司 | Pressure-resistant rubber joint |
| CN213088975U (en) * | 2020-09-16 | 2021-04-30 | 曹广慧 | Pre-buried positioning sleeve of electrical equipment installation engineering |
| CN213206901U (en) * | 2020-08-25 | 2021-05-14 | 北京太平机电设备安装有限责任公司 | Double-layer pipe fitting with hot galvanizing on inner wall and outer wall |
| CN113819315A (en) * | 2021-09-16 | 2021-12-21 | 南京卓信联工业装备科技有限公司 | Composite pipe for preventing atmospheric environment corrosion |
-
2021
- 2021-12-28 CN CN202111629813.3A patent/CN114215968A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009174615A (en) * | 2008-01-23 | 2009-08-06 | Nippon Kansen Kogyo Kk | Flange coupling and metal pipe joining structure |
| CN106369239A (en) * | 2016-10-11 | 2017-02-01 | 鞍钢集团矿业有限公司 | High polymer material composite pipeline high-pressure-resistant telescopic pipe joint and connecting method thereof |
| CN207260558U (en) * | 2017-09-25 | 2018-04-20 | 广州市番禺区第五建筑工程公司 | Support supervisor |
| CN212156178U (en) * | 2020-03-16 | 2020-12-15 | 郑州天源橡胶有限公司 | Pressure-resistant rubber joint |
| CN213206901U (en) * | 2020-08-25 | 2021-05-14 | 北京太平机电设备安装有限责任公司 | Double-layer pipe fitting with hot galvanizing on inner wall and outer wall |
| CN213088975U (en) * | 2020-09-16 | 2021-04-30 | 曹广慧 | Pre-buried positioning sleeve of electrical equipment installation engineering |
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