CN213839910U - Vacuum corrugated pipe - Google Patents

Vacuum corrugated pipe Download PDF

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Publication number
CN213839910U
CN213839910U CN202022454796.1U CN202022454796U CN213839910U CN 213839910 U CN213839910 U CN 213839910U CN 202022454796 U CN202022454796 U CN 202022454796U CN 213839910 U CN213839910 U CN 213839910U
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China
Prior art keywords
bellows
hole
circular
annular flange
vacuum
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CN202022454796.1U
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Chinese (zh)
Inventor
周磊
窦沛静
张竞中
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Zhuhai Heze Technology Co ltd
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Zhuhai Heze Technology Co ltd
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Abstract

The utility model discloses a vacuum corrugated pipe, which comprises a corrugated pipe body, a first connecting part and a second connecting part, wherein the first connecting part is provided with a first circular through hole, the edge of the first surface of the first connecting part is provided with a first annular flange, the first annular flange is concentric with the first circular through hole, and one end of the corrugated pipe body is welded with the inner wall of the first annular flange; the second connecting portion is provided with the circular through-hole of second, and the border of the first face of second connecting portion is provided with the annular flange of second, and the annular flange of second is concentric with the circular through-hole of second, and the other end of bellows body welds mutually with the inner wall of the annular flange of second. According to the utility model discloses a vacuum bellows is convenient for realize the welding of first connecting portion and second connecting portion and bellows body to the welded leakproofness is better, makes vacuum bellows's sealing performance better, and life is longer.

Description

Vacuum corrugated pipe
Technical Field
The utility model belongs to the technical field of the bellows technique and specifically relates to a vacuum bellows is related to.
Background
The corrugated pipe can be used as a sensitive element, a sealing element, an isolation medium, a pipeline connection, a temperature compensator and the like, and is applied to the industries of instruments, aerospace, electric power, metallurgy and the like. The vacuum corrugated pipe is a novel element, and has the advantages of large deformation, long service life and the like compared with the traditional formed corrugated pipe, so the vacuum corrugated pipe is often applied to some ultrahigh vacuum environments, and the main application of the vacuum corrugated pipe can be divided into: as a sealing element; as energy transfer or absorption elements: as compensating connection elements, etc. The existing vacuum bellows is usually composed of a bellows and connecting parts at two ends, and the vacuum bellows is usually applied in a vacuum environment, so that the sealing performance of the vacuum bellows is very high. However, when the existing vacuum bellows is used for welding the bellows and the connecting parts at the two ends, the welding tightness is poor, and leakage is easy to occur, so that the sealing performance of the vacuum bellows is not good enough, and the service life of the vacuum bellows is not long.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a vacuum bellows can reduce the risk of welding gas leakage for its sealing reliability is better.
According to the utility model discloses vacuum bellows, include: a bellows body; the corrugated pipe comprises a corrugated pipe body, a first connecting part and a second connecting part, wherein the corrugated pipe body is provided with a first circular through hole; the second connecting portion is provided with a second circular through hole, the edge of the first surface of the second connecting portion is provided with a second annular flange, the second annular flange is concentric with the second circular through hole, and the second end of the corrugated pipe body is welded with the inner wall of the second annular flange.
According to the utility model discloses vacuum bellows has following beneficial effect at least: during welding, the first end of the corrugated pipe body is firstly extended into the first annular flange, and then one end of the corrugated pipe body is welded with the inner wall of the first annular flange; extending the second end of the corrugated pipe body into the second annular flange, and welding the other end of the corrugated pipe body with the inner wall of the second annular flange, so that the corrugated pipe body is welded with the two connecting parts; set up first annular flange through the one side at first connecting portion, set up the annular flange of second in the one side of second connecting portion to be convenient for realize the welding of first connecting portion and second connecting portion and bellows body, and make the welded leakproofness better, reduce welding gas leakage risk, make vacuum bellows's sealing performance better, life is longer.
According to some embodiments of the present invention, the second face of the first connecting portion is provided with a plurality of first mounting holes.
According to some embodiments of the utility model, the first mounting hole is the bolt hole.
According to the utility model discloses a some embodiments, a plurality of first mounting hole is located with the mode of circumference equipartition the second face of first connecting portion.
According to the utility model discloses a few embodiments, the second face of first connecting portion is provided with the annular holding tank, the annular holding tank can be used to place the sealing washer.
According to some embodiments of the utility model, the second face of second connecting portion is provided with a chassis, the chassis be provided with the endocentric third circular through-hole of second circular through-hole, the radius of third circular through-hole is greater than the radius of the circular through-hole of second, be provided with a plurality of second mounting hole on the chassis.
According to the utility model discloses a some embodiments, the chassis is circular, a plurality of the second mounting hole is located with the mode of circumference equipartition on the chassis.
According to some embodiments of the invention, the base plate is square.
According to the utility model discloses a some embodiments, the quantity of second mounting hole is four, four the second mounting hole set up respectively in four edges on chassis.
According to some embodiments of the utility model, its characterized in that, the bellows body first connecting portion with the material of second connecting portion is the stainless steel.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an exploded view of a vacuum bellows according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the first connection portion shown in fig. 1 from another perspective;
fig. 3 is a schematic structural view of the second connection portion shown in fig. 1 from another perspective;
fig. 4 is a schematic structural diagram of a vacuum bellows according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a vacuum bellows according to another embodiment of the present invention;
reference numerals:
the bellows comprises a bellows body 100, a first connection portion 200, a first circular through hole 210, a first annular flange 220, an annular receiving groove 230, a second connection portion 300, a second circular through hole 310, a second annular flange 320, a first mounting hole 400, a bottom plate 500, a third circular through hole 510, and a second mounting hole 520.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 4, a vacuum bellows according to an embodiment of the present invention includes a bellows tube 100, a first connection portion 200, and a second connection portion 300, wherein the first connection portion 200 is provided with a first circular through hole 210, a first annular flange 220 is provided at an edge of a lower surface of the first connection portion 200, the first annular flange 220 is concentric with the first circular through hole 210, and a first end of the bellows tube 100 is welded to an inner wall of the first annular flange 220; the second connecting portion 300 is provided with a second circular through hole 310, a second annular flange 320 is provided on the second connecting portion 300, the second annular flange 320 is concentric with the second circular through hole 310, and the second end of the bellows body 100 is welded to the inner wall of the second annular flange 320.
According to the vacuum bellows of the embodiment of the present invention, during welding, one end of the bellows body 100 is first extended into the first annular flange 220, and then one end of the bellows body 100 is welded to the inner wall of the first annular flange 220; extending the other end of the bellows body 100 into the second annular flange 320, and welding the other end of the bellows body 100 to the inner wall of the second annular flange 320, thereby realizing welding of the bellows body 100 to the two connecting parts; set up first annular flange 220 through the one side at first connecting portion 200, set up second annular flange 320 in the one side of second connecting portion 300 to be convenient for realize the welding of first connecting portion 200 and second connecting portion 300 and bellows body 100, and make welded leakproofness better, thereby reduce welding gas leakage risk, make vacuum bellows's sealing performance better, life is longer.
As shown in fig. 1, in some embodiments of the present invention, a plurality of first mounting holes 400 are disposed on the first connecting portion 200. In practical application, the vacuum bellows is installed through the first installation hole 400, and the installation and the disassembly are convenient due to the arrangement.
In some embodiments of the present invention, the first mounting hole 400 is a bolt hole. The first mounting hole 400 is provided as a bolt hole, so that when the first connecting portion 200 is mounted, only the bolt and the nut which are matched with each other need to be adopted, and the mounting and the dismounting are convenient.
As shown in fig. 1, in some embodiments of the present invention, a plurality of first mounting holes 400 are circumferentially and uniformly arranged on the first connecting portion 200. Through such setting for first connecting portion 200 atress is more even when the installation, and the installation is comparatively firm, more accords with actual demand.
As shown in fig. 1, an annular receiving groove 230 is formed on the first connecting portion 200, and the annular receiving groove 230 is used for receiving a sealing ring. When the first connection portion 200 is connected to an external member, a sealing ring may be placed in the annular receiving groove 230, so that sealing performance is better.
Referring to fig. 3 and 4, in some embodiments of the present invention, a bottom plate 500 is disposed under the second connecting portion 300, the bottom plate 500 is provided with a third circular through hole 510 concentric with the second circular through hole 310, the radius of the third circular through hole 510 is greater than that of the second circular through hole 310, and a plurality of second mounting holes 520 are disposed on the bottom plate 500. By providing the bottom plate 500 on the other surface of the second connection portion 300, stress concentration can be reduced and the second connection portion 300 is not easily deformed during welding. And the installation of the chassis 500 is facilitated by providing a plurality of second installation holes 520 on the chassis 500. Wherein, the second mounting hole 520 can also adopt a bolt hole, so that when the chassis 500 is mounted, only the bolt and the nut which are matched with each other need to be adopted, and the mounting and the dismounting are convenient.
As shown in fig. 3, in some embodiments of the present invention, the chassis 500 is circular, and a plurality of second mounting holes 520 are disposed on the chassis 500 in a circumferentially uniform manner. By adopting the circular chassis 500, the universality is stronger, and the method can be applied to more scenes. And a plurality of second mounting holes 520 are circumferentially and uniformly distributed on the chassis 500, so that the chassis 500 is stressed uniformly during mounting, and actual requirements are met.
As shown in fig. 5, in some embodiments of the present invention, the chassis 500 is square. When the vacuum corrugated pipe is used for connecting pipelines, the square base plate 500 is adopted, which is beneficial to the compact arrangement of the pipes and the better sealing effect.
As shown in fig. 5, in some embodiments of the present invention, the number of the second mounting holes 520 is four, and four second mounting holes 520 are respectively disposed at four corners of the chassis 500. By providing the second mounting holes 520 at all four corners of the chassis 500, it is more securely mounted.
In some embodiments of the present invention, the material of the bellows tube 100, the first connection portion 200, and the second connection portion 300 is stainless steel. The arrangement enables the vacuum corrugated pipe to be more resistant to corrosion and longer in service life. Of course, the bellows tube body 100, the first connection portion 200, and the second connection portion 300 may be made of other metal materials, but are not limited thereto.
According to the vacuum bellows of the embodiment of the present invention, during welding, one end of the bellows body 100 is first extended into the first annular flange 220, and then one end of the bellows body 100 is welded to the inner wall of the first annular flange 220; the other end of the bellows body 100 extends into the second annular flange 320, and the other end of the bellows body 100 is welded to the inner wall of the second annular flange 320, so that the bellows body 100 is welded to the two connecting parts, and the welding tightness is good; the first mounting hole 400 is formed in the first connecting portion 200, and the second mounting hole 520 is formed in the bottom plate 500, so that the vacuum bellows can be conveniently connected with an external element, and the universality is high.
In the description herein, references to the description of the term "one embodiment," "a further embodiment," "some specific embodiments," or "some examples," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A vacuum bellows, comprising:
a bellows body;
the corrugated pipe comprises a corrugated pipe body, a first connecting part and a second connecting part, wherein the corrugated pipe body is provided with a first circular through hole;
the second connecting portion is provided with a second circular through hole, the edge of the first surface of the second connecting portion is provided with a second annular flange, the second annular flange is concentric with the second circular through hole, and the second end of the corrugated pipe body is welded with the inner wall of the second annular flange.
2. The vacuum bellows according to claim 1, wherein the second face of the first connection portion is provided with a plurality of first mounting holes.
3. The vacuum bellows of claim 2, wherein the first mounting hole is a bolt hole.
4. The vacuum bellows according to claim 2 or 3, wherein a plurality of the first mounting holes are circumferentially and uniformly arranged on the second surface of the first connecting portion.
5. A vacuum bellows according to claim 1, wherein the second face of the first connection portion is provided with an annular receiving groove for receiving a sealing ring.
6. A vacuum bellows according to claim 1, wherein the second face of the second connection portion is provided with a bottom plate, the bottom plate is provided with a third circular through hole concentric with the second circular through hole, the third circular through hole has a radius larger than that of the second circular through hole, and the bottom plate is provided with a plurality of second mounting holes.
7. The vacuum bellows according to claim 6, wherein the base plate is circular, and the plurality of second mounting holes are circumferentially and uniformly disposed on the base plate.
8. The vacuum bellows of claim 6 wherein the bottom plate is square.
9. The vacuum bellows according to claim 8, wherein the number of the second mounting holes is four, and four of the second mounting holes are respectively disposed at four corners of the base plate.
10. The vacuum bellows of claim 1, wherein the bellows body, the first connection portion, and the second connection portion are all stainless steel.
CN202022454796.1U 2020-10-29 2020-10-29 Vacuum corrugated pipe Active CN213839910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022454796.1U CN213839910U (en) 2020-10-29 2020-10-29 Vacuum corrugated pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022454796.1U CN213839910U (en) 2020-10-29 2020-10-29 Vacuum corrugated pipe

Publications (1)

Publication Number Publication Date
CN213839910U true CN213839910U (en) 2021-07-30

Family

ID=77012400

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022454796.1U Active CN213839910U (en) 2020-10-29 2020-10-29 Vacuum corrugated pipe

Country Status (1)

Country Link
CN (1) CN213839910U (en)

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