CN218543520U

CN218543520U - Welded corrugated pipe

Info

Publication number: CN218543520U
Application number: CN202222880351.9U
Authority: CN
Inventors: 赵素芝
Original assignee: Shenyang Jingchen Juhui Technology Development Co ltd
Current assignee: Shenyang Jingchen Juhui Technology Development Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-28
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the technical field of corrugated pipe production, in particular to a welded corrugated pipe, which comprises a corrugated pipe body formed by alternately arranging and welding N +1 end plates and N corrugated sections, wherein the two ends of the corrugated pipe body are connected with the end plates which are of Y-shaped sheet metal structures; the corrugated section is formed by welding and connecting a plurality of membranes alternately by welding fusion areas on the inner side or the outer side; at least one of the diaphragms is provided with an arc section on the cross section. The beneficial effects of the utility model reside in that: the structure is simple, the design is reasonable, the cost is low, the efficiency is high, and the service life is prolonged; through the Y-shaped structure of end plate and the constitution of the V-arrangement structure of diaphragm, have good intensity and flexible performance, not only improved the pliability of bellows, increased the flexible volume of bellows moreover, both solved the not enough of the welding bellows that prior art made, can prolong the life of bellows again greatly.

Description

Welded corrugated pipe

Technical Field

The utility model belongs to the technical field of the bellows, specifically be a welding bellows.

Background

The corrugated pipe is used as a flexible pressure-resistant pipe fitting to be installed in a liquid conveying system, is used for compensating mutual displacement of connecting ends of pipelines or machines and equipment, absorbs vibration energy, can play a role in vibration reduction, noise reduction and the like, and has the characteristics of good flexibility, light weight, corrosion resistance, fatigue resistance, high and low temperature resistance and the like.

At present, corrugated pipes are generally applied to various devices as key parts, the existing welded corrugated pipes have the defects of insufficient bending amount, small expansion amount, small eccentric range, poor flexibility and the like, the use requirements cannot be ensured, enough space environment is required during installation, strict position requirements and structure limitations are imposed on devices connected with the welded corrugated pipes, the size, the structure and the like of the required devices are increased, the manufacturing complexity and the manufacturing cost of the devices of the whole device are increased, the use space is enlarged, and the sealing effect and the service life cannot be completely ensured. Therefore, the method is not suitable for use in a polysilicon ingot furnace, and has disadvantages of complicated manufacturing process, many manufacturing steps, high manufacturing cost, low efficiency, and the like.

CN 202020191359.2's special type welding bellows of sensor among the prior art, including first attach fitting, ripple pipeline section and second attach fitting, wherein first attach fitting with the second attach fitting is connected respectively at ripple pipeline section both ends, and the bellows improves the elasticity coefficient of ripple pipeline section, has also guaranteed life and reliability simultaneously satisfying the operating mode requirement, and is different with the structure of this application, and the ripple section of this application is many, and then flexible volume is big.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art, having good flexibility, large expansion amount and long service life.

In order to achieve the above object, the utility model provides a following technical scheme:

a welded corrugated pipe comprises N +1 end plates and a corrugated pipe body formed by alternately arranging and welding N corrugated sections, wherein the two ends of the corrugated pipe body are connected with the end plates which are of Y-shaped sheet metal structures; the corrugated section is formed by welding and connecting a plurality of membranes alternately by welding fusion areas on the inner side or the outer side; at least one of the diaphragms is provided with an arc section on the cross section.

Preferably, the opening of the end plate faces outwards, and the included angle beta of the opening is 80-90 degrees.

Preferably, the length of the welding fusion area accounts for 5-10% of the cross-sectional width of the membrane.

Preferably, the cross section of the arc section is any one of a triangle, a trapezoid or an arc, and 1 to 3 pieces of the arc section are arranged on the membrane.

Preferably, when the arc section is arc, the arc alpha is 60-70 degrees, and the chord height is equal to the thickness of the membrane.

Preferably, two of the outermost end plates are welded with the flange respectively, and threaded connecting holes are formed in the flange.

The utility model provides a pair of welding bellows, beneficial effect lies in: the structure is simple, the design is reasonable, the manufacturing process is simple and convenient, the cost is low, the efficiency is high, and the service life is prolonged; through the Y-shaped structure of end plate and the constitution of the V-shaped structure of diaphragm, have good flexible performance, not only improved the pliability of bellows, increased the flexible volume of bellows moreover, both solved the not enough of the shaping bellows of prior art manufacturing, can avoid again using the too high problem of welding bellows cost, can prolong the life of bellows again greatly.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a corrugated tube according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the circled portion of FIG. 3;

FIG. 5 is a schematic view of the arc-shaped arc section structure on the membrane of the present invention;

FIG. 6 is a schematic view of a triangular arc structure on a membrane of the present invention;

FIG. 7 is a schematic view of a trapezoidal arc structure on the membrane of the present invention;

fig. 8 is a schematic structural diagram of a middle plate according to an embodiment of the present invention.

In the figure: 1. the corrugated pipe comprises a corrugated pipe body, 2, flanges, 3, a corrugated section, 4, end plates, 5, a fusion area, 6, a membrane, 7, a threaded connecting hole, 8 and an arc section.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Example one

Referring to fig. 1, fig. 3-fig. 8, which are schematic structural views of an embodiment of a welded corrugated pipe according to the present invention, the welded corrugated pipe includes a corrugated pipe body 1 formed by welding 3

end plates

4 and 2 corrugated sections 3, wherein the corrugated pipe body 1 has two ends connected to the end plates 4, and the corrugated sections 3 are formed by welding a plurality of diaphragms 6 alternately by inner or outer welding fusion areas 5; all be equipped with segmental arc 8 on the cross-section of two adjacent diaphragms 6, end plate 4 is Y shape sheet metal construction, the opening of end plate 4 is towards the outside, opening contained angle beta is 90, the length of weld fusion district 5 accounts for 6% of 6 cross-sectional widths of diaphragm, segmental arc 8's cross-section is the arc, it is 2 to set up quantity, its radian alpha is 70, the chord height is equivalent with 6 thickness of diaphragm, two end plates 4 in the outside are welded with flange 2 respectively and are connected, be equipped with threaded connection hole 7 on the flange 2.

Example two

See fig. 2-fig. 8, which is a schematic structural view of an embodiment of the welded bellows of the present invention, including a bellows body 1 formed by welding 3

end plates

4 and 2 bellows segments 3 arranged alternately, an arc segment 8 is provided on one diaphragm 6, the adjacent diaphragms 6 are straight plate structures, the two diaphragms 6 are connected alternately, the two ends of the bellows body 1 are connected with the end plates 4, and the bellows segment 3 is formed by welding a plurality of diaphragms 6 alternately by inner or outer welding fusion areas 5; end plate 4 is Y shape sheet metal construction, and the opening of end plate 4 is towards the outside, and opening contained angle beta is 80, and the length of welding fusion zone 5 accounts for 8% of 6 cross-sectional widths of diaphragm, and the cross-section of segmental arc 8 is the arc, sets up quantity and is 2, and its radian alpha is 65, and the chord height is equivalent with 6 thickness of diaphragm, and two end plates 4 in the outside are connected with 2 weldings of flange respectively, are equipped with threaded connection hole 7 on the flange 2.

In use, the corrugated pipe body 1 formed by connecting the corrugated pipe with an external pipe through the flange 2 and welding the end plates 4 and the corrugated sections 3 in an alternate arrangement has the characteristic of welding the corrugated pipe. The end plate 4 is Y shape sheet metal construction, and its thickness can be the same with the diaphragm or inequality, uses it to have different elasticity, and diaphragm 6 makes up the back with end plate 4, and the intensity and the elastic coefficient of improvement bellows that can be corresponding have also guaranteed life and reliability when satisfying the operating mode requirement.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. A welded corrugated pipe, comprising: the corrugated pipe comprises a corrugated pipe body (1) formed by alternately arranging and welding N +1 end plates (4) and N corrugated sections (3), wherein the end plates (4) are connected to two ends of the corrugated pipe body (1), and the end plates (4) are Y-shaped sheet metal structures; the corrugated section (3) is formed by alternately connecting a plurality of diaphragms (6) by welding fusion areas (5) on the inner side or the outer side; at least one of the diaphragms (6) is provided with an arc section (8) on the cross section.

2. A welded bellows according to claim 1, wherein: the opening of the end plate (4) faces outwards, and the included angle beta of the opening is 80-90 degrees.

3. A welded corrugated pipe according to claim 1, wherein: the length of the welding fusion area (5) accounts for 5-10% of the cross section width of the diaphragm (6).

4. A welded corrugated pipe according to claim 1, wherein: the section of the arc section (8) is any one of a triangle, a trapezoid or an arc, and 1-3 pieces of the arc section are arranged on the membrane.

5. A welded corrugated pipe according to claim 4, wherein: when the arc section (8) is arc-shaped, the radian alpha is 60-70 degrees, and the chord height is equivalent to the thickness of the membrane (6).

6. A welded corrugated pipe according to claim 1, wherein: two end plates (4) on the outermost sides are respectively welded with the flange (2), and threaded connecting holes (7) are formed in the flange (2).