CN111237588A

CN111237588A - Self-supporting corrugated pipe

Info

Publication number: CN111237588A
Application number: CN202010035200.6A
Authority: CN
Inventors: 孙艳朝
Original assignee: Liaoning Xitai Technology Co Ltd
Current assignee: Liaoning Xitai Technology Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-06-05
Anticipated expiration: 2040-01-14
Also published as: CN111237588B

Abstract

The invention relates to the technical field of corrugated pipes, in particular to a self-supporting corrugated pipe which comprises a corrugated pipe, a first flange plate and a second flange plate, wherein the first flange plate and the second flange plate are arranged at two ends of the corrugated pipe, the self-supporting corrugated pipe also comprises a self-rolling steel bar and a rolling device, when the self-rolling steel bar is in a stretching state, the cross section of the self-rolling steel bar is bent and forms self-supporting, a through hole penetrating through two end faces of the first flange plate is formed in the first flange plate, the through hole is positioned at the radial inner side of the joint of the end part of the corrugated pipe and the first flange plate, the rolling device is arranged at the position close to the through hole on the outer end face of the first flange plate, the first end of the self-rolling steel bar is connected with the inner end face of the second flange plate, the self-rolling steel bar penetrates through the through hole, the second end of, can be kept self-supporting for a long distance.

Description

Self-supporting corrugated pipe

Technical Field

The invention relates to the technical field of corrugated pipes, in particular to a corrugated pipe capable of realizing self-supporting of a long-distance automatic corrugated pipe section.

Background

The corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm and a film box, 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 functions in the fields of medium transportation, electric power threading, machine tools, household appliances and the like.

When the corrugated section is long, in order to prevent the corrugated section from falling down due to self gravity, the middle of the corrugated section is provided with a spacer ring, the corrugated section is segmented by the spacer ring, and the spacer ring is supported respectively. In some cases, the corrugated pipe cannot be kept in a horizontal straight state for a long distance without a spacer ring support seat at the corrugated section position.

Disclosure of Invention

In order to solve the above problems, the present invention provides a self-supporting corrugated pipe which does not need a spacer ring for supporting and can maintain a long self-supporting distance.

In order to achieve the purpose, the invention adopts the technical scheme that:

in a first technical scheme, the self-supporting corrugated pipe comprises a corrugated pipe, a first flange plate and a second flange plate which are arranged at two ends of the corrugated pipe, a self-rolling steel bar and a rolling device, wherein when the self-rolling steel bar is in a stretching state, the cross section of the self-rolling steel bar is in a curved shape and forms self-support, the first flange plate is provided with through holes penetrating through two end faces of the first flange plate, the position of the through hole is positioned at the radial inner side of the joint of the end part of the corrugated pipe and the first flange plate and at the upper half area of the first flange plate, the winding device is arranged at the position of the end surface of the outer side of the first flange plate close to the through hole, the first end of the self-rolling steel bar is connected with the inner side end face of the second flange plate, the self-rolling steel bar penetrates through the through hole, the second end of the self-rolling steel bar is arranged in the rolling device, and the rolling device is used for containing the self-rolling steel bar extending out of the first flange plate into a roll shape.

In the first technical solution, preferably, the winding device includes a box body, and the box body is covered on the periphery of the through hole in a sealing manner.

In a first technical scheme, as preferred, be equipped with the pivot in the box body, this pivot both ends are passed through the bearing and are connected at the box body inboard, from rolling up billet second end and connecting on the bearing.

In the first technical solution, preferably, the rotating shaft is provided with a torsion spring, and the torsion spring provides torque for the rotating shaft to realize active storage of the self-winding spring by the rotating shaft.

In the first aspect, preferably, an axis of the spindle is perpendicular to a main extending direction of the self-winding steel strip in a stretched state.

In the first technical means, it is preferable that the inside of the case body corresponding to the through hole has a guide slope for changing the straight self-winding steel strip into a self-winding state by extrusion.

In the first technical means, it is preferable that the cross-sectional shape and size of the through-hole match with the cross-sectional shape and size of the self-winding steel strip.

In the first technical solution, preferably, the section of the self-winding steel strip in the corrugated pipe is adjacent to the inner wall of the corrugated pipe.

The beneficial effects of the invention are as follows:

this bellows is through the characteristic of rolling up the billet certainly, for having certain strip of self-sustaining power, plays the effect of supporting the bellows when tensile state, and when the bellows shrink, during the through-hole entered into storage device is passed to the billet from rolling up, its switching state self-adaptation to form the support to the bellows.

Drawings

Fig. 1 is a schematic structural diagram of the self-supporting corrugated tube of the present invention in a stretched state.

FIG. 2 is a schematic view of the contracted state of the self-supporting corrugated tube of the present invention.

Fig. 3 is a schematic structural view of the self-supporting bellows stretching state winding device of the present invention.

Fig. 4 is a schematic structural view of the self-supporting bellows contraction state winding device of the present invention.

Fig. 5 is a cross-sectional view taken along plane a-a of fig. 2.

Fig. 6 is a schematic top view of the rolling device in the self-supporting corrugated tube according to the present invention.

The reference numerals include:

10A-a first flange plate, 10B-a second flange plate, 11-a through hole, 12-a corrugated pipe connecting line, 20-a corrugated pipe, 30-a self-rolling steel bar, 40-a rolling device, 41-a box body, 42-a guide inclined plane, 43-a rotating shaft and 431-a torsion spring.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

Example 1

As shown in fig. 1-6, the present invention provides a self-supporting corrugated tube, which comprises a corrugated tube 20, and a first flange 10A and a second flange 10B disposed at two ends of the corrugated tube 20, the self-supporting corrugated tube further comprises a self-coiling steel strip 30 and a coiling device 40, wherein when the self-rolling steel bar 30 is in a stretching state, the cross section of the self-rolling steel bar 30 is curved and forms self-supporting, the first flange plate 10A is provided with through holes 11 penetrating through two end faces of the first flange plate 10A, the through hole 11 is located at the radial inner side of the joint of the end of the corrugated pipe 20 and the first flange plate 10A, the rolling device 40 is arranged at the position close to the through hole 11 at the outer end face of the first flange plate 10A, the first end of the self-rolling steel bar 30 is connected with the inner end face of the second flange plate 10B, the self-rolling steel bar 30 passes through the through hole 11, the second end of the self-rolling steel bar is arranged in the rolling device 40, the winding device 40 is used for winding the self-winding steel strip 30 extending out of the first flange 10A into a roll shape.

The connection between the bellows 20 and the first flange is shown as bellows connection line 12.

In this embodiment, the tape in the similar coil of strip chi of structure of self-winding billet 30, the difference is in that the width of self-winding billet is great, and crooked type radian is bigger during tensile state to play the effect that long distance supported, nevertheless should not the overlength from the length of winding billet 30, avoid collapsing and warp.

When the self-supporting corrugated pipe is the sealing corrugated pipe 20, the rolling device 40 comprises a box body 41, and the box body 41 is covered on the periphery of the through hole 11 in a sealing mode.

As shown in fig. 6, a rotating shaft 43 is provided in the box body 41, both ends of the rotating shaft 43 are connected to the inner side of the box body 41 through bearings, and the second end of the self-winding steel strip 30 is connected to the bearings, so as to facilitate winding of the self-winding steel strip 30.

The rotation shaft 43 is provided with a torsion spring 431, and the torsion spring 431 provides torque for the rotation shaft 43 to realize the active storage of the rotation shaft 43 for the self-winding spring.

The axis of pivot 43 is perpendicular with the main extending direction when rolling up billet 30 tensile state, and convenient rolling avoids the curling damage when rolling up billet 30.

As shown in fig. 2 and 4, the inside of the case 41 corresponding to the through-hole 11 has a guide slope 42, and the guide slope 42 is used for changing the straight self-wound steel strip 30 into a self-wound state by extrusion.

The cross-sectional shape and size of the through-hole 11 are matched with those of the self-winding steel strip 30, and the through-hole 11 serves to flatten the self-winding steel strip 30 in a stretched state when the self-winding steel strip 30 is stretched.

The section of the self-coiling steel strip 30 in the corrugated pipe 20 is adjacent to the inner wall of the corrugated pipe 20, so that the corrugated pipe 20 is prevented from being deformed greatly.

Example 2

The self-supporting corrugated tube in this embodiment is similar to the self-supporting corrugated tube in embodiment 1, except that the flanges are respectively provided with a winding device 40, and the self-winding steel strips 30 are wound in two directions.

A self-supporting corrugated pipe comprises a corrugated pipe 20, a first flange plate 10A and a second flange plate 10B which are arranged at two ends of the corrugated pipe 20, and further comprises a self-rolling steel bar 30 and a rolling device 40, wherein when the self-rolling steel bar 30 is in a stretching state, the cross section of the self-rolling steel bar 30 is in a bending shape and forms self-supporting, through holes 11 penetrating through two end faces of the first flange plate 10A and the second flange plate 10B are formed in corresponding positions of the first flange plate 10A and the second flange plate 10B, the positions of the through holes 11 are located on the radial inner side of the joint of the end part of the corrugated pipe 20 and the first flange plate 10A and the second flange plate 10B, and the two rolling devices 40 are respectively arranged at the positions, close to the through holes 11, of the end faces; the winding device 40 comprises a box body 41, the box body 41 is covered on the periphery of the through hole 11 in a sealing manner, a rotating shaft 43 is arranged in the box body 41, two ends of the rotating shaft 43 are connected to the inner side of the box body 41 through bearings, and two ends of the self-winding steel bar 30 respectively penetrate through the through holes 11 on the first flange plate 10A and the second flange plate 10B and are connected with the rotating shaft 43 in the corresponding storage box.

The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the invention may be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the claims of this patent.

Claims

1. The utility model provides a self-supporting bellows, includes the bellows and sets up first ring flange and the second ring flange at bellows both ends, its characterized in that: the self-supporting corrugated pipe further comprises a self-rolling steel bar and a rolling device, wherein when the self-rolling steel bar is in a stretching state, the cross section of the self-rolling steel bar is curved and forms self-supporting, a through hole penetrating through two end faces of a first flange plate is formed in the first flange plate, the position of the through hole is located on the radial inner side of the joint of the end part of the corrugated pipe and the first flange plate and is located in the upper half area of the first flange plate, the rolling device is arranged on the outer end face of the first flange plate and is close to the position of the through hole, the first end of the self-rolling steel bar is connected with the inner end face of the second flange plate, the self-rolling steel bar penetrates through the through hole and the second end and is arranged in the.

2. The self-supporting corrugated tube of claim 1, wherein: the winding device comprises a box body, and the box body is covered on the periphery of the through hole in a sealing mode.

3. The self-supporting corrugated tube of claim 2, wherein: the box body is internally provided with a rotating shaft, two ends of the rotating shaft are connected to the inner side of the box body through bearings, and the second end of the self-rolling steel bar is connected to the bearings.

4. The self-supporting bellows of claim 3, wherein: and a torsion spring is arranged on the rotating shaft and provides torque for the rotating shaft so as to realize the active storage of the rotating shaft on the self-winding spring.

5. The self-supporting bellows of claim 3, wherein: the axis of the rotating shaft is vertical to the main extending direction of the self-rolling steel strip in a stretching state.

6. The self-supporting corrugated tube of claim 2, wherein: the position of the box body corresponding to the through hole is provided with a guide inclined plane which is used for changing the linear self-rolling steel bar into a self-rolling state through extrusion.

7. The self-supporting corrugated tube of claim 1, wherein: the cross section shape and size of the through hole are matched with the cross section shape and size of the self-rolling steel bar.

8. Self supporting corrugated pipe according to any one of claims 1 to 7, wherein: the section of the self-rolling steel bar in the corrugated pipe is adjacent to the inner wall of the corrugated pipe.