CN215721520U

CN215721520U - Long corrugated pipe with adjustable passing property connected to outside

Info

Publication number: CN215721520U
Application number: CN202122097260.3U
Authority: CN
Inventors: 朴松玲
Original assignee: Hefei Sanyue Semiconductor Technology Co ltd
Current assignee: Hefei Sanyue Semiconductor Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-01
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses an external-link passage-adjustable long corrugated pipe, which relates to the technical field of vacuum and optics and comprises a plurality of sections of corrugated pipes connected end to end; the middle spacing ring is arranged between the two adjacent sections of corrugated pipes and is used for connecting the two adjacent sections of corrugated pipes; the welding shoulder rings are respectively arranged at the two ends of the corrugated pipe, wherein the welding shoulder ring positioned at the head end of the corrugated pipe is welded with the CF fixing flange, and the welding shoulder ring positioned at the tail end of the corrugated pipe is welded with the CF loose flange; and the clamp is arranged on the outer surface of the corrugated pipe and used for fixing the corrugated pipe externally and hoisting the corrugated pipe. The corrugated pipes are designed to be multi-section, and the plurality of corrugated pipes are rotatably connected through the spacing rings, so that each corrugated pipe can independently rotate, and the corrugated pipes can rotate under the action of the spacing rings during installation or use, thereby avoiding the occurrence of the distortion of the corrugated pipes and further being beneficial to the normal operation and use of equipment.

Description

Long corrugated pipe with adjustable passing property connected to outside

Technical Field

The utility model relates to the technical field of vacuum and optics, in particular to an externally-linked long corrugated pipe with adjustable passability.

Background

The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe has thin pipe wall and high sensitivity, and the measurement range is from tens of Pa to tens of MPa. Its open end is fixed, its sealed end is in free state, and its elasticity is increased by using auxiliary helical spring or reed. When working, the pipe is extended along the length direction under the action of internal pressure, so that the movable end generates displacement in a certain relation with the pressure. The movable end drives the pointer to directly indicate the pressure. Bellows are often combined with displacement sensors to form pressure sensors that output an electrical quantity, sometimes also acting as isolation elements. The response speed of the bellows is slower than that of the bourdon tube because of the large volume change required for the expansion of the bellows. The bellows is adapted to measure low pressure.

The existing corrugated pipe is integral, and the corrugated pipe is easy to distort during installation or use, so that the operation and use of equipment are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an externally-linked long corrugated pipe with adjustable passability, which aims to solve the problem that the existing corrugated pipe in the background art is integral and is easy to cause the corrugated pipe to be distorted and deformed during installation or use, so that the operation and use of equipment are influenced.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

an elongated bellows with externally linked tunable transit, comprising:

a plurality of sections of corrugated pipes connected end to end;

the middle spacing ring is arranged between the two adjacent sections of corrugated pipes and is used for connecting the two adjacent sections of corrugated pipes;

the welding shoulder rings are respectively arranged at the two ends of the corrugated pipe, wherein the welding shoulder ring positioned at the head end of the corrugated pipe is welded with the CF fixing flange, and the welding shoulder ring positioned at the tail end of the corrugated pipe is welded with the CF loose flange;

the clamp is arranged on the outer surface of the corrugated pipe and used for fixing the outer part and hoisting the corrugated pipe, a welding flange is welded on the outer surface of the corrugated pipe, and the welding flange is matched with the clamp.

Preferably, the inner diameter of the middle spacer ring is equal to that of the corrugated pipe, and the middle spacer ring is respectively connected with the two adjacent sections of corrugated pipes in a rotating manner.

Preferably, the welding shoulder ring is respectively welded with a CF fixing flange and a CF loose flange, and the diameter of the CF fixing flange is larger than the outer diameter of the corrugated pipe.

Preferably, the band comprises, in combination,

the two sides of the lower end of the upper pressing lug are provided with steps extending outwards, and the steps are provided with threaded holes;

and the lower hoop is in a semicircular design, is matched with the upper pressing lug and is in threaded connection with the upper pressing lug through a screw.

Preferably, the upper end of the upper pressing lug is provided with a plurality of counter bores.

Preferably, the welding shoulder ring, the corrugated pipe and the middle spacing ring are coaxially arranged from left to right in sequence.

Preferably, welding flange's quantity equals with the quantity of clamp, welding flange is provided with the recess that is used for the clamp to fix, clamp cladding recess.

Preferably, the corrugated pipe is of a hollow structure.

Compared with the prior art, the utility model provides the long corrugated pipe with the adjustable trafficability of the external link, which has the following beneficial effects:

the corrugated pipes are designed to be in a multi-section mode, the plurality of sectional corrugated pipes are rotatably connected through the spacing rings, each corrugated pipe can independently rotate, and the corrugated pipes can rotate under the action of the spacing rings during installation or use, so that the corrugated pipes are prevented from being distorted and deformed, and normal operation and use of equipment are facilitated.

Drawings

FIG. 1 is a schematic view of an external-link adjustable-permeability elongated bellows according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;

the reference numbers in the figures are:

1. a CF fixed flange; 2. welding a shoulder ring; 3. clamping a hoop; 4. a CF loose flange; 5. welding a flange; 6. a spacer ring; 7. a screw; 8. a bellows.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-3, an externally linked adjustable transit elongate bellows comprising:

a plurality of sections of corrugated pipes 8 connected end to end; the bellows 8 is of a hollow structure.

The middle spacing ring 6 is arranged between the two adjacent sections of corrugated pipes 8 and is used for connecting the two adjacent sections of corrugated pipes 8;

the welding shoulder ring 2 is welded, the welding shoulder ring 2 is respectively arranged at two ends of the corrugated pipe 8, wherein the welding shoulder ring 2 positioned at the head end of the corrugated pipe 8 is welded with the CF fixed flange 1, and the welding shoulder ring 2 positioned at the tail end of the corrugated pipe 8 is welded with the CF loose flange 4;

the clamp is arranged on the outer surface of the corrugated pipe 8 and used for fixing the corrugated pipe 8 externally and hoisting the corrugated pipe 8, the welding flange 5 is welded on the outer surface of the corrugated pipe 8, and the welding flange 5 is matched with the clamp 3.

Specifically, the inner diameter of the middle spacer ring 6 is equal to the inner diameter of the corrugated pipe 8, the middle spacer ring 6 is respectively connected with two adjacent sections of corrugated pipes 8 in a rotating mode, the multiple sections of corrugated pipes 8 are connected in a rotating mode through the middle spacer ring 6, each corrugated pipe 8 can rotate independently, and when the corrugated pipes are installed or used, the corrugated pipes 8 can rotate under the effect of the middle spacer ring 6, so that the corrugated pipes 8 are prevented from being distorted.

The welding shoulder ring 2 is respectively welded with the CF fixing flange 1 and the CF loose flange 4, the diameter of the CF fixing flange 1 is larger than the outer diameter of the corrugated pipe 8, and the corrugated pipe 8 is connected with two devices through the CF fixing flange 1, the welding shoulder ring 2 and the CF loose flange 4.

Specifically, the clip 3 includes: the two sides of the lower end of the upper pressing lug are provided with steps extending outwards, and the steps are provided with threaded holes; the lower hoop is in a semicircular design, is matched with the upper pressing lug and is in threaded connection with the upper pressing lug through a screw 7, a plurality of counter bores are formed in the upper end of the upper pressing lug, and the upper pressing lug are fixedly connected under the action of the screw 7.

Specifically, welding shoulder ring 2, bellows 8 and middle spacer ring 6 from left to right coaxial setting in proper order have guaranteed the concentricity of one end flange interface to other end flange interface of bellows to obtain the utilization ratio of shaft diameter maximize, and can provide higher trafficability characteristic for light.

Specifically, welding flange 5's quantity equals with clamp 3's quantity, selects welding flange 5 and hoop 3's quantity according to bellows 8's length, and welding flange 5 is provided with the recess that is used for clamp 3 to fix, and clamp 3 cladding recess connects flange 5 and hoop 3 fixed connection, and the clamp 3 that the accessible outside was hung up finely tunes to can provide higher trafficability characteristic for light.

When the utility model is used, the multi-section corrugated pipes 8 are rotationally connected through the middle spacing ring 6, so that each corrugated pipe 8 can independently rotate, when the utility model is installed or used, the corrugated pipes 8 can rotate under the action of the middle spacing ring 6, thereby avoiding the corrugated pipes 8 from generating distortion, further being beneficial to the normal operation and use of equipment, when the utility model is used in the vacuum field, the whole length of the multi-section corrugated pipes 8 can be customized according to the use condition, the concentricity from one end flange interface of the corrugated pipe to the other end flange interface is ensured, the utilization rate of the maximum shaft diameter is obtained, when the utility model is indicated in the optical field, the whole length of the multi-section corrugated pipes 8 can be customized according to the use condition, the flange connection from one end flange interface of the corrugated pipe 8 to the other end is ensured, and the local part can be finely adjusted through the externally hung hoop 3, thereby providing greater light throughput.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An externally-linked, adjustable-permeability elongated corrugated pipe, comprising:

a plurality of sections of corrugated pipes (8) connected end to end;

the middle spacing ring (6) is arranged between the two adjacent sections of corrugated pipes (8) and is used for connecting the two adjacent sections of corrugated pipes (8);

the welding shoulder rings (2) are respectively arranged at two ends of the corrugated pipe (8), wherein the welding shoulder ring (2) positioned at the head end of the corrugated pipe (8) is welded with the CF fixed flange (1), and the welding shoulder ring (2) positioned at the tail end of the corrugated pipe (8) is welded with the CF loose flange (4);

the clamp sets up in the surface of bellows (8) for outside fixed and lift by crane bellows (8), and bellows (8) skin weld has welding flange (5), welding flange (5) and clamp (3) phase-match.

2. An externally-linked adjustable-passability elongated bellows according to claim 1, wherein: the inner diameter of the middle spacing ring (6) is equal to that of the corrugated pipe (8), and the middle spacing ring (6) is respectively in rotary connection with two adjacent sections of corrugated pipes (8).

3. An externally-linked adjustable-passability elongated bellows according to claim 1, wherein: the welding shoulder ring (2) is respectively welded with the CF fixing flange (1) and the CF loose flange (4), and the diameter of the CF fixing flange (1) is larger than the outer diameter of the corrugated pipe (8).

4. An external link adjustable transit elongate corrugated pipe as claimed in claim 1 wherein the clamp (3) comprises:

the lower hoop is designed in a semicircular shape, is matched with the upper pressing lug and is in threaded connection with the upper pressing lug through a screw (7).

5. An externally-linked adjustable-passability elongated bellows according to claim 1, wherein: the upper end of the upper pressing lug is provided with a plurality of counter bores.

6. An externally-linked adjustable-passability elongated bellows according to claim 1, wherein: the welding shoulder ring (2), the corrugated pipe (8) and the middle spacing ring (6) are coaxially arranged from left to right in sequence.

7. An externally-linked adjustable-passability elongated bellows according to claim 1, wherein: the quantity of welding flange (5) equals with the quantity of clamp (3), welding flange (5) are provided with the recess that is used for clamp (3) to fix, clamp (3) cladding recess.

8. An externally-linked adjustable-passability elongated bellows according to claim 1, wherein: the corrugated pipe (8) is of a hollow structure.