CN210397969U

CN210397969U - Polytetrafluoroethylene composite pipe

Info

Publication number: CN210397969U
Application number: CN201921191202.3U
Authority: CN
Inventors: 包信海; 包信章; 祝莉
Original assignee: Taizhou Guangming Electronic Material Co ltd
Current assignee: Taizhou Guangming Electronic Material Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-24
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a compound pipe of polytetrafluoroethylene, including outer structure steel pipe and cohesion tetrafluoroethylene pipe, the outer end of outer structure steel pipe is provided with flange plate, the inboard evenly distributed of outer structure steel pipe has the strengthening rib, and the side of strengthening rib is provided with thermal-insulated filling layer, cohesion tetrafluoroethylene pipe is located the inside of outer structure steel pipe, and cohesion tetrafluoroethylene pipe's surface evenly distributed has spacing bead, cohesion tetrafluoroethylene pipe's outer end is provided with protruding edge, and cohesion tetrafluoroethylene pipe's the left end outside is provided with the connection fixture block to cohesion tetrafluoroethylene pipe's right-hand member outside is provided with spacing draw-in groove, flange plate's inboard is seted up flutedly, and the inboard of recess is provided with seal ring. This compound pipe of polytetrafluoroethylene is provided with the connection fixture block and the spacing draw-in groove that the pipe fitting of being convenient for makes up the concatenation, makes things convenient for the concatenation of pipe fitting to use, and the whole good structural stability that has inside and outside the pipe fitting simultaneously.

Description

Polytetrafluoroethylene composite pipe

Technical Field

The utility model relates to a compound relevant technical field of pipe specifically is a compound pipe of polytetrafluoroethylene.

Background

The composite pipe fitting can provide different functional effects for the pipe fitting through different materials of layering, for example, a polytetrafluoroethylene composite pipe is a structural steel pipe sleeved outside a polytetrafluoroethylene inner pipe, so that the good structural strength of the outside can be kept while the internal anti-corrosion effect is achieved, and the flexible use of the pipe fitting is facilitated.

But be direct nested installation usually between the compound intraductal outer tube of present polytetrafluoroethylene, inside tetrafluoroethylene pipe fitting takes place to slide easily, influences the stability of pipe fitting inner structure, and the pipe fitting needs splice the assembly to the multistage pipe fitting when using simultaneously, and current pipe fitting itself lacks certain spacing fixed measure, directly carries out flange joint and is not convenient for align the concatenation fast, and the flange pad is also not convenient for splice between the outer tube including, influences the assembly use of pipe fitting.

Aiming at the problems, the novel design is carried out on the basis of the original composite pipe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound pipe of polytetrafluoroethylene to the pipe fitting takes place to slide easily in the compound pipe that proposes in solving above-mentioned background art, the problem that the quick connect assembly of being not convenient for aligns during the pipe connections.

In order to achieve the above object, the utility model provides a following technical scheme: a polytetrafluoroethylene composite pipe comprises an outer structure steel pipe and a cohesive tetrafluoroethylene pipe, wherein a connecting flange plate is arranged at the outer end of the outer structure steel pipe, connecting holes are uniformly distributed in the side wall of the connecting flange plate, connecting bolts are connected inside the connecting holes, fixing nuts are mounted at the rear ends of the connecting bolts, an anticorrosive coating is coated on the outer surface of the outer structure steel pipe, reinforcing ribs are uniformly distributed on the inner side of the outer structure steel pipe, a heat insulation filling layer is arranged on the side surface of each reinforcing rib, the cohesive tetrafluoroethylene pipe is positioned inside the outer structure steel pipe, limiting convex edges are uniformly distributed on the outer surface of the cohesive tetrafluoroethylene pipe, a convex edge is arranged at the outer end of the cohesive tetrafluoroethylene pipe, a connecting clamping block is arranged on the outer side of the left end of the cohesive tetrafluoroethylene pipe, a limiting clamping groove is arranged on the outer side of the right end of the cohesive tetrafluoroethylene pipe, and a groove is formed in the inner side of, and a sealing gasket is arranged on the inner side of the groove.

Preferably, the connecting flange plate and the outer structural steel pipe are of an integrated structure, and the adjacent outer structural steel pipes are connected with each other through the connecting flange plate and the connecting bolts.

Preferably, the reinforcing ribs and the outer structural steel pipe are of an integrated structure, the reinforcing ribs are uniformly distributed on the outer side of the cohesive tetrafluoroethylene pipe, the cross section of each reinforcing rib is of a T-shaped structure, and heat insulation filling layers are uniformly distributed between gaps of adjacent reinforcing ribs.

Preferably, the limiting convex ribs and the cohesive tetrafluoroethylene tube are of an integrated structure, and the limiting convex ribs and the reinforcing ribs are distributed in a mutually staggered mode.

Preferably, the connecting clamping blocks and the limiting clamping grooves are located on the outer sides of the convex edges, the adjacent cohesive polytetrafluoroethylene tubes are connected in a clamping mode through the connecting clamping blocks and the limiting clamping grooves, and the limiting clamping grooves and the connecting holes are distributed on the outer sides of the connecting flange plates in a staggered mode.

Preferably, the sealing gasket is positioned between the connecting flange plate and the convex edge, and the sealing gasket and the groove are mutually attached.

Compared with the prior art, the beneficial effects of the utility model are that: the polytetrafluoroethylene composite pipe;

1. the connecting fixture blocks and the limiting clamping grooves which are convenient for the combined splicing of the pipe fittings are arranged, when the pipe fittings are connected for use, the connecting fixture blocks and the limiting clamping grooves which are distributed in a staggered mode with the connecting holes can carry out limiting splicing on the inner cohesive polytetrafluoroethylene pipe while flange connection is not influenced, and the quick assembly of the pipe fittings is facilitated;

2. be provided with strengthening rib and spacing bead, in the use of device, the spacing bead of strengthening rib cooperation can make things convenient for outer structure steel pipe and the spacing suit between the polytetrafluoroethylene intertube to use, prevents that the polytetrafluoroethylene intertube from sliding in outer structure steel pipe is inside, improves the stability of internal connection, and the thermal-insulated filling layer between strengthening rib fit gap can be when keeping stable in structure, through the thermal-insulated function that thermal-insulated filling layer improved the pipe fitting, improves the practicality of pipe fitting simultaneously.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic view of the connecting block structure of the present invention;

fig. 4 is the schematic diagram of the structure of the limiting slot of the present invention.

In the figure: 1. an outer structural steel pipe; 2. connecting a flange plate; 3. connecting holes; 4. a connecting bolt; 5. fixing a nut; 6. an anti-corrosion coating; 7. reinforcing ribs; 8. a thermally insulating fill layer; 9. a cohesive tetrafluoroethylene tube; 10. a limiting convex rib; 11. a convex edge; 12. connecting a clamping block; 13. a limiting clamping groove; 14. a groove; 15. a gasket is provided.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a polytetrafluoroethylene composite pipe comprises an outer structural steel pipe 1, a connecting flange plate 2, connecting holes 3, connecting bolts 4, fixing nuts 5, an anticorrosive coating 6, reinforcing ribs 7, a heat insulation filling layer 8, a cohesive tetrafluoroethylene pipe 9, limiting convex ribs 10, a convex edge 11, connecting clamping blocks 12, limiting clamping grooves 13, grooves 14 and sealing washers 15, wherein the outer end of the outer structural steel pipe 1 is provided with the connecting flange plate 2, the side walls of the connecting flange plate 2 are uniformly distributed with the connecting holes 3, the connecting holes 3 are internally connected with the connecting bolts 4, the rear ends of the connecting bolts 4 are provided with the fixing nuts 5, the outer surface of the outer structural steel pipe 1 is coated with the anticorrosive coating 6, the inner side of the outer structural steel pipe 1 is uniformly distributed with the reinforcing ribs 7, the side surfaces of the reinforcing ribs 7 are provided with the heat insulation filling layer 8, the cohesive tetrafluoroethylene pipe 9 is positioned inside the outer structural steel pipe 1, and the outer surface of the cohesive tetrafluoroethylene pipe 9 is uniformly distributed with the limiting, the outer end of the inner poly tetrafluoroethylene tube 9 is provided with a convex edge 11, the outer side of the left end of the inner poly tetrafluoroethylene tube 9 is provided with a connecting clamping block 12, the outer side of the right end of the inner poly tetrafluoroethylene tube 9 is provided with a limiting clamping groove 13, the inner side of the connecting flange plate 2 is provided with a groove 14, and the inner side of the groove 14 is provided with a sealing washer 15.

The connecting flange plate 2 and the outer structural steel pipes 1 are of an integrated structure, and the adjacent outer structural steel pipes 1 are connected with each other through the connecting flange plate 2 and the connecting bolts 4, so that the adjacent pipe fittings can be conveniently connected and fastened.

Strengthening rib 7 and outer structure steel pipe 1 are the integral structure, and strengthening rib 7 evenly distributed is in the cohesion tetrafluoroethylene pipe 9 outsides to the cross section of strengthening rib 7 is "T" style of calligraphy structure, and evenly distributed has thermal-insulated filling layer 8 between the clearance of adjacent strengthening rib 7 simultaneously, when being convenient for keep structural strength through strengthening rib 7, through the service function nature of thermal-insulated filling layer 8 enhancement pipe fitting.

Spacing bead 10 and cohesion tetrafluoroethylene pipe 9 are the integral structure, and for crisscross distribution each other between spacing bead 10 and the strengthening rib 7, are convenient for play supplementary spacing effect in step through the cooperation of spacing bead 10 and strengthening rib 7.

Connect fixture block 12 and spacing draw-in groove 13 and all be located the outside of protruding edge 11, and constitute the block through connecting fixture block 12 and spacing draw-in groove 13 between the adjacent cohesion tetrafluoroethylene pipe 9 and connect to spacing draw-in groove 13 and connecting hole 3 are in the crisscross distribution in the outside of connecting flange 2, and the convenience is when not influencing pipe fitting flange joint, the quick concatenation of the pipe fitting of being convenient for.

The sealing washer 15 is positioned between the connecting flange 2 and the convex edge 11, and the sealing washer 15 and the groove 14 are mutually attached and placed, so that the sealing protection between the outer structure steel pipe 1 and the inner poly tetrafluoroethylene pipe 9 is facilitated.

The working principle is as follows: when the polytetrafluoroethylene composite pipe is used, according to the drawings of fig. 1 and fig. 3-4, a pipe fitting with a proper specification and length can be selected to mutually fit a connecting clamping block 12 and a limiting clamping groove 13 at the end to be spliced, so that the connecting clamping block 12 extends into the spaced through groove of the limiting clamping groove 13, then the pipe fittings at two sides are relatively rotated, the connecting clamping block 12 can be clamped into the limiting clamping groove 13 to be preliminarily clamped and fixed as shown in fig. 1, meanwhile, the connecting holes 3 of the connecting flange discs 2 at two sides are mutually aligned, and after a proper flange pad is assembled, the connecting holes 3 are connected and fixed through the connecting bolts 4 and the fixing nuts 5, and then the splicing assembly of the pipe fittings can be completed;

in the using process of the pipe fitting, as shown in fig. 1-2, the external structural steel pipe 1 and the anticorrosive coating 6 can provide good structural protection in the external environment for a long time, the internal cohesive tetrafluoroethylene pipe 9 has a good corrosion resistant effect on internal conveying liquid, and meanwhile, as shown in fig. 2, the external structural steel pipe 1 and the cohesive tetrafluoroethylene pipe 9 are mutually attached through the reinforcing ribs 7, so that good structural support can be maintained, and at the same time, the sliding between the external structural steel pipe 1 and the cohesive tetrafluoroethylene pipe 9 is effectively prevented through the matching limit of the limiting convex ribs 10, the heat insulation filling layer 8 between the external structural steel pipe 1 and the cohesive tetrafluoroethylene pipe 9 also has good heat insulation performance, the practicability of the pipe fitting is effectively improved, and the content not described in detail in the present specification belongs to the prior art known by a person skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A polytetrafluoroethylene composite pipe comprises an outer structure steel pipe (1) and a cohesive polytetrafluoroethylene pipe (9), and is characterized in that: the outer end of the outer structural steel pipe (1) is provided with a connecting flange plate (2), connecting holes (3) are uniformly distributed on the side wall of the connecting flange plate (2), connecting bolts (4) are connected inside the connecting holes (3), fixing nuts (5) are mounted at the rear ends of the connecting bolts (4), an anticorrosive coating (6) is coated on the outer surface of the outer structural steel pipe (1), reinforcing ribs (7) are uniformly distributed on the inner side of the outer structural steel pipe (1), a heat insulation filling layer (8) is arranged on the side face of each reinforcing rib (7), the inner polytetrafluoroethylene pipe (9) is positioned inside the outer structural steel pipe (1), limiting convex ribs (10) are uniformly distributed on the outer surface of the inner polytetrafluoroethylene pipe (9), a convex edge (11) is arranged at the outer end of the inner polytetrafluoroethylene pipe (9), and a connecting clamping block (12) is arranged on the outer side of the left end of the inner polytetrafluoroethylene pipe (9), and a limiting clamping groove (13) is formed in the outer side of the right end of the inner poly tetrafluoroethylene pipe (9), a groove (14) is formed in the inner side of the connecting flange plate (2), and a sealing gasket (15) is arranged on the inner side of the groove (14).

2. The polytetrafluoroethylene composite pipe according to claim 1, wherein: the connecting flange plate (2) and the outer structural steel pipe (1) are of an integrated structure, and the adjacent outer structural steel pipes (1) are connected with each other through the connecting flange plate (2) and the connecting bolts (4).

3. The polytetrafluoroethylene composite pipe according to claim 1, wherein: the reinforcing rib (7) and the outer structure steel pipe (1) are of an integrated structure, the reinforcing rib (7) is uniformly distributed on the outer side of the cohesive Teflon pipe (9), the cross section of the reinforcing rib (7) is of a T-shaped structure, and meanwhile, a heat insulation filling layer (8) is uniformly distributed between gaps of adjacent reinforcing ribs (7).

4. The polytetrafluoroethylene composite pipe according to claim 1, wherein: spacing bead (10) and cohesion tetrafluoroethylene pipe (9) are the integral structure, and for crisscross distribution each other between spacing bead (10) and strengthening rib (7).

5. The polytetrafluoroethylene composite pipe according to claim 1, wherein: the connecting clamping blocks (12) and the limiting clamping grooves (13) are located on the outer sides of the convex edges (11), the adjacent cohesive polytetrafluoroethylene tubes (9) are connected in a clamping mode through the connecting clamping blocks (12) and the limiting clamping grooves (13), and the limiting clamping grooves (13) and the connecting holes (3) are distributed on the outer sides of the connecting flange plates (2) in a staggered mode.

6. The polytetrafluoroethylene composite pipe according to claim 1, wherein: the sealing washer (15) is positioned between the connecting flange plate (2) and the convex edge (11), and the sealing washer (15) and the groove (14) are mutually attached and placed.