CN212156101U

CN212156101U - Corrosion-resistant PE bellows

Info

Publication number: CN212156101U
Application number: CN202020420518.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Jinyu Fengye Pipe Ind Co ltd
Current assignee: Zhejiang Jinyu Fengye Pipe Ind Co ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-12-15
Anticipated expiration: 2030-03-28

Abstract

The utility model discloses a corrosion-resistant PE corrugated pipe, which comprises a corrugated pipe, wherein a metal mesh is compounded on the inner peripheral surface of the corrugated pipe in a hot melting manner, an arc groove is formed in the corrugated pipe, a support ring is arranged in the arc groove, a flexible layer is fixedly connected to the inner peripheral surface of the metal mesh, the inner peripheral surface of the flexible layer is coated with the corrosion-resistant layer, one end of the outer peripheral surface of the corrugated pipe is fixedly connected with a first circular ring, and the outer part of the first circular ring is rotatably connected with a first rotating body; the utility model discloses an arc groove in the bellows leaves crooked surplus, when meetting the comparatively precipitous messenger of mounted position, need not the violently flat vertical of ground repairment, has reduced the construction volume, has improved the installation effectiveness, is isosceles trapezoid with the protruding shape design of department of bellows simultaneously, has improved area of contact, has reduced stress concentration, has improved bellows life, and bellows internally mounted has the support ring simultaneously, has strengthened the bearing capacity and the shock resistance of bellows.

Description

Corrosion-resistant PE bellows

Technical Field

The utility model relates to a bellows technical field, concretely relates to corrosion-resistant PE bellows.

Background

The corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm capsule, a metal hose and the like. The metal corrugated pipe is mainly applied to the effects of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, and is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like. The corrugated pipe made of other materials such as plastics has irreplaceable effects in the fields of medium conveying, electric power threading, machine tools, household appliances and the like.

However, in practical use, the main technical problems are that the existing corrugated pipes are generally made of plastic materials, the corrosion resistance and the service life are low, and the wear resistance, the bearing capacity and the impact resistance are to be improved.

Therefore, it is necessary to develop a corrosion-resistant PE corrugated pipe to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a corrosion-resistant PE bellows, through the design of bellows bulge shape for isosceles trapezoid, area of contact has been improved, stress concentration has been reduced, bellows life has been improved, bellows internally mounted has the support ring, the bearing capacity and the shock resistance of bellows have been strengthened, be PE material component through toughness layer and bellows, improve the low temperature resistance performance of bellows, reduce the hydroscopicity of bellows, improve the electrical insulation of bellows, corrosion-resistant layer has excellent acid and alkali resistance and wearability simultaneously, with the above-mentioned weak point in the solution technique.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a corrosion-resistant PE bellows, includes the bellows, bellows inner peripheral surface hot melt is compound has the metal mesh, the inside circular arc groove that opens of bellows, the inside support ring that is equipped with of circular arc groove, the inner peripheral surface fixed connection of metal mesh has the toughness layer, the inner peripheral surface coating of toughness layer has the corrosion-resistant layer, bellows outer peripheral surface one end fixedly connected with first ring, first ring outside rotation is connected with first rotator, first rotator outer peripheral surface fixedly connected with first connecting plate, bellows one side fixedly connected with first semi-hollow post is kept away from to first rotator, bellows outer peripheral surface other end fixedly connected with second ring, second ring outside rotation is connected with the second rotator, second rotator outer peripheral surface fixedly connected with second connecting plate.

Preferably, the cross section of the bulge of the corrugated pipe is in an isosceles trapezoid shape.

Preferably, the cross-sectional shape of the arc grooves is isosceles trapezoid, the number of the arc grooves is multiple, and the multiple arc grooves are distributed in the corrugated pipe in a linear array manner.

Preferably, the flexible layer and the corrugated pipe are both made of PE materials.

Preferably, the corrosion-resistant layer is a component made of a mixture of cast stone powder, ceramic micro powder and silicon micro powder.

Preferably, the number of the first rotating bodies is two, the two first rotating bodies are symmetrically distributed outside the corrugated pipe, and the two first rotating bodies are connected through a first connecting plate bolt.

Preferably, the number of the second rotating bodies is two, the two second rotating bodies are symmetrically distributed outside the corrugated pipe, and the two second rotating bodies are connected through a second connecting plate bolt.

Preferably, the first semi-hollow column has an outer circumferential surface provided with external threads, and the second rotating body has an inner circumferential surface provided with internal threads.

In the technical scheme, the utility model provides a technological effect and advantage:

the corrugated pipe has the advantages that the bending allowance is reserved through the arc grooves in the corrugated pipe, when the mounting position is steep, the ground does not need to be trimmed, the construction amount is reduced, the mounting efficiency is improved, meanwhile, the protruding part of the corrugated pipe is designed to be isosceles trapezoid, the contact area is improved, the stress concentration is reduced, the service life of the corrugated pipe is prolonged, meanwhile, the support ring is mounted in the corrugated pipe, the bearing capacity and the impact resistance of the corrugated pipe are enhanced, the first rotating body, the second rotating body and the corrugated pipe are movably connected when being mounted, the condition that flanges are mounted at two ends of the corrugated pipe under the common condition is avoided, the mounting difficulty is reduced, the first semi-hollow column and the second rotating body are connected through threads to complete fixation, the mounting between the two corrugated pipes is facilitated, the toughness layer and the corrugated pipe are PE material components, and the low-temperature, the water absorption of the corrugated pipe is reduced, the electric insulation of the corrugated pipe is improved, meanwhile, the corrosion-resistant layer has excellent acid and alkali resistance and wear resistance, and the application range of the corrugated pipe is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a cross-sectional view of a first rotating body of the present invention;

fig. 5 is a front sectional view of the present invention.

Description of reference numerals:

the structure comprises a corrugated pipe 1, a metal mesh 2, a circular arc groove 3, a support ring 4, a toughness layer 5, a corrosion-resistant layer 6, a first circular ring 7, a first rotating body 8, a first connecting plate 9, a first semi-hollow column 10, a second circular ring 11, a second rotating body 12 and a second connecting plate 13.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a corrosion-resistant PE corrugated pipe as shown in figures 1-5, which comprises a corrugated pipe 1, wherein a metal mesh 2 is compounded on the inner peripheral surface of the corrugated pipe 1 through hot melting, an arc groove 3 is opened inside the corrugated pipe 1, a support ring 4 is arranged inside the arc groove 3, a toughness layer 5 is fixedly connected on the inner peripheral surface of the metal mesh 2, a corrosion-resistant layer 6 is coated on the inner peripheral surface of the toughness layer 5, one end of the outer peripheral surface of the corrugated pipe 1 is fixedly connected with a first ring 7, the outer part of the first ring 7 is rotatably connected with a first rotator 8, the outer peripheral surface of the first rotator 8 is fixedly connected with a first connecting plate 9, one side of the first rotator 8 far away from the corrugated pipe 1 is fixedly connected with a first semi-hollow column 10, the other end of the outer peripheral surface of the corrugated pipe 1 is fixedly connected with a second, a second connecting plate 13 is fixedly connected to the outer peripheral surface of the second rotating body 12.

Further, in the above technical solution, the cross-sectional shape of the protrusion of the corrugated tube 1 is set to be an isosceles trapezoid, and the cross-sectional shape of the protrusion of the corrugated tube 1 is set to be an isosceles trapezoid, so that the contact area is increased, and the stress concentration on the protrusion of the corrugated tube 1 is reduced.

Further, in the above technical scheme, the cross sectional shape of the arc groove 3 is isosceles trapezoid, the number of the arc grooves 3 is set to be a plurality, the plurality of the arc grooves 3 are linearly distributed inside the corrugated pipe 1, and the cross sectional shape of the arc groove 3 is isosceles trapezoid, so that the corrugated pipe 1 has a bending allowance when being bent, and the degree of bending of the corrugated pipe 1 is improved.

Furthermore, in the above technical solution, the flexible layer 5 and the corrugated tube 1 are both made of PE, and the flexible layer 5 and the corrugated tube 1 are both made of PE, so as to improve the low temperature resistance of the corrugated tube 1, reduce the water absorption of the corrugated tube 1, and improve the electrical insulation of the corrugated tube 1.

Further, in the above technical scheme, the corrosion-resistant layer 6 is a component made of a mixture of cast stone powder, ceramic micro powder and silica micro powder, the cast stone powder has excellent acid-base resistance and wear resistance, the corrosion resistance is more than 10 times of that of acid-resistant cement, the ceramic micro powder has good dispersibility, good chemical stability, high heat-resistant temperature, good insulativity and good electrical insulativity, is not easy to react with other substances, does not react with most of acid and alkali, and has strong corrosion resistance.

Further, in the above technical solution, the number of the first rotating bodies 8 is two, the two first rotating bodies 8 are symmetrically distributed outside the corrugated pipe 1, the two first rotating bodies 8 are connected by bolts through the first connecting plate 9, and the corrugated pipe 1 is fixedly connected with other corrugated pipes 1 through the two first rotating bodies 8.

Further, in the above technical solution, the number of the second rotating bodies 12 is two, the two second rotating bodies 12 are symmetrically distributed outside the corrugated pipe 1, the two second rotating bodies 12 are connected by bolts through the second connecting plate 13, and the corrugated pipe 1 is conveniently and fixedly connected with other corrugated pipes 1 through the two second rotating bodies 12.

Further, in the above technical solution, the outer circumferential surface of the first semi-hollow column 10 is provided with an external thread, the inner circumferential surface of the second rotating body 12 is provided with an internal thread, and the first semi-hollow column 10 and the second rotating body 12 are connected by the thread, so as to facilitate the fixed connection between the corrugated pipes 1.

The implementation mode is specifically as follows: the corrugated pipe 1 is placed at a required position, bending allowance is reserved through the arc groove 3 in the corrugated pipe 1, when the installation position is steep, the ground is not required to be trimmed transversely and vertically, the construction amount is reduced, the installation efficiency is improved, meanwhile, the shape of the bulge of the corrugated pipe 1 is designed to be isosceles trapezoid, the contact area is improved, the stress concentration is reduced, the service life of the corrugated pipe 1 is prolonged, meanwhile, the support ring 4 is arranged in the corrugated pipe 1, the bearing capacity and the impact resistance of the corrugated pipe 1 are enhanced, the first rotating body 8 is placed at the first circular ring 7 on the corrugated pipe 1, then the second rotating body 8 is attached to the first rotating body 8, bolts penetrate through the first connecting plate 9, the two first rotating bodies 8 are fixedly connected, the first rotating body 8 is rotatably connected with the first circular ring 7, then the first second rotating body 12 is placed at the second circular ring 11 on the other corrugated pipe 1, then the second rotator 12 is attached to the first second rotator 12, and then bolts pass through the second connecting plate 13 to fixedly connect the two second rotators 12, the first rotator 8, the second rotator 12 and the corrugated tube 1 are movably connected during installation, thereby avoiding the situation that flanges are installed at two ends of the corrugated tube 1 under normal conditions, reducing the installation difficulty, enabling the second rotator 12 to be rotatably connected with the second ring 11, then the first semi-hollow column 10 at one side of the outer wall of the first rotator 8 is inserted into the second rotator 12, then the first rotator 8 is rotated, the first semi-hollow column 10 and the second rotator 12 are fixed through threaded connection, two different corrugated tubes 1 are fixedly connected with each other, the first semi-hollow column 10 and the second rotator 12 are fixed through threaded connection, thereby facilitating the installation between the two corrugated tubes 1, and then liquid to be transported is introduced into the corrugated tubes 1, through toughness layer 5 and bellows 1 are the PE material component, improve the low temperature resistance of bellows 1, reduce the hydroscopicity of bellows 1, improve the electrical insulation of bellows 1, corrosion-resistant layer 6 has excellent acid and alkali resistance and wearability simultaneously, has improved this bellows 1's application scope, and this embodiment has specifically solved the bellows 1 that exists among the prior art and has all been the plastics material component usually, and corrosion resistance and life are lower to wearability, bearing capacity and shock resistance need the problem that improves.

This practical theory of operation:

referring to fig. 1-5 of the specification, a corrugated pipe 1 is placed at a desired position, a first rotating body 8 is placed on a first ring 7 of the corrugated pipe 1, a second first rotating body 8 is attached to the first rotating body 8, bolts are passed through a first connecting plate 9 to fixedly connect the two first rotating bodies 8, the first rotating body 8 is rotatably connected to the first ring 7, a first second rotating body 12 is placed on a second ring 11 of another corrugated pipe 1, a second rotating body 12 is attached to the first second rotating body 12, bolts are passed through a second connecting plate 13 to fixedly connect the two second rotating bodies 12, the second rotating body 12 is rotatably connected to the second ring 11, a first semi-hollow column 10 on the outer wall side of the first rotating body 8 is inserted into the second rotating body 12, the first rotating body 8 is rotated, the first semi-hollow column 10 and the second rotary body 12 are fixed by screw thread connection, two different corrugated pipes 1 are fixedly connected with each other, and then the liquid to be transported is introduced into the corrugated pipes 1.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A corrosion-resistant PE corrugated pipe comprises a corrugated pipe (1) and is characterized in that: the corrugated pipe is characterized in that a metal mesh (2) is compounded on the inner peripheral surface of the corrugated pipe (1) in a hot melting mode, an arc groove (3) is formed in the corrugated pipe (1), a support ring (4) is arranged in the arc groove (3), a flexible layer (5) is fixedly connected to the inner peripheral surface of the metal mesh (2), an anti-corrosion layer (6) is coated on the inner peripheral surface of the flexible layer (5), a first ring (7) is fixedly connected to one end of the outer peripheral surface of the corrugated pipe (1), a first rotating body (8) is rotatably connected to the outer portion of the first ring (7), a first connecting plate (9) is fixedly connected to the outer peripheral surface of the first rotating body (8), a first semi-hollow column (10) is fixedly connected to one side, away from the corrugated pipe (1), of the other end of the outer peripheral surface of the corrugated pipe (1) is fixedly connected with a second ring (11, and a second connecting plate (13) is fixedly connected to the outer peripheral surface of the second rotating body (12).

2. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the cross section of the convex part of the corrugated pipe (1) is in an isosceles trapezoid shape.

3. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the cross-sectional shape of arc groove (3) is isosceles trapezoid, the quantity of arc groove (3) sets up to a plurality ofly, and a plurality of arc groove (3) linear array distribute inside bellows (1).

4. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the toughness layer (5) and the corrugated pipe (1) are both PE members.

5. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the corrosion-resistant layer (6) is a component made of a mixture of cast stone powder, ceramic micro powder and silicon micro powder.

6. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the number of first rotator (8) sets up to two, and two first rotators (8) symmetric distribution are outside in bellows (1), and two first rotators (8) are through first connecting plate (9) bolted connection.

7. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the number of the second rotating bodies (12) is two, the two second rotating bodies (12) are symmetrically distributed outside the corrugated pipe (1), and the two second rotating bodies (12) are connected through a second connecting plate (13) through bolts.

8. A corrosion resistant PE corrugated pipe as set forth in claim 1, wherein: the outer peripheral surface of the first semi-hollow column (10) is provided with external threads, and the inner peripheral surface of the second rotating body (12) is provided with internal threads.