CN219035936U

CN219035936U - Tetrafluoro corrugated pipe expansion joint with long service life

Info

Publication number: CN219035936U
Application number: CN202223238520.5U
Authority: CN
Inventors: 洪厚祥
Original assignee: Jiangsu Anrui Tetrafluoroethylene Anticorrosion Equipment Co ltd
Current assignee: Jiangsu Anrui Tetrafluoroethylene Anticorrosion Equipment Co ltd
Priority date: 2022-12-03
Filing date: 2022-12-03
Publication date: 2023-05-16
Anticipated expiration: 2032-12-03

Abstract

The application discloses long service life's tetrafluoro bellows expansion joint, including the bellows, set up in the inside tetrafluoro inside lining of bellows, set up in the flange at bellows both ends, its characterized in that, the outside of bellows is provided with the safety cover, is fixed with the installation piece on the inner wall of safety cover, has seted up a plurality of spring grooves on the installation piece, is provided with the elastic component in the spring groove, and the one end that the spring groove bottom was kept away from to the elastic component is fixed with the supporting ball. The expansion joint can provide certain elastic support for the lower part of the expansion joint of the corrugated pipe in the horizontal state, so that the phenomenon of sagging of the expansion joint of the corrugated pipe is avoided, and the normal use of the expansion joint is influenced.

Description

Tetrafluoro corrugated pipe expansion joint with long service life

Technical Field

The application relates to the technical field of expansion joints, in particular to a tetrafluoro corrugated pipe expansion joint with long service life.

Background

The expansion joint of the tetrafluoro-lined corrugated pipe in the prior art comprises a flange, a corrugated pipe and a tetrafluoro lining, wherein the corrugated pipe is fixedly connected with the flanges at two ends to form a corrugated pipe compensation structure, and the tetrafluoro lining is attached to the inner surface of the corrugated pipe. The expansion joint of the tetrafluoro-lined corrugated pipe can be used for a pipeline system to play a role in compensating the length, the temperature, the position and the angle, has better corrosion resistance due to the tetrafluoro-lined corrugated pipe, and can be widely applied to the pipeline system for conveying corrosive media.

However, when the expansion joint of the tetrafluoro-lined corrugated pipe is in a horizontal state for a long time, the lower Fang Shouli of the corrugated pipe is large, deformation is easy to occur, the contraction function of the expansion joint of the corrugated pipe is affected, and the normal use of the expansion joint is further affected.

Disclosure of Invention

The utility model provides a main aim at provides a long service life's tetrafluoro bellows expansion joint, can provide certain elastic support to the below position under the bellows expansion water conservation state, avoids the bellows expansion joint to appear the phenomenon of sagging, influences the normal use of expansion joint.

The utility model provides a long service life's tetrafluoro bellows expansion joint, including the bellows, set up in the inside tetrafluoro inside lining of bellows, set up in the flange at bellows both ends, the outside of bellows is provided with the safety cover, be fixed with the installation piece on the inner wall of safety cover, a plurality of spring grooves have been seted up on the installation piece, be provided with the elastic component in the spring groove, just the one end that the spring component kept away from the spring groove bottom is fixed with the backing ball.

Preferably, the elastic piece comprises a spring arranged in the spring groove and a sliding block in sliding fit with the spring groove, and the sliding block is fixedly connected with the supporting ball.

Preferably, a plurality of fixing blocks are fixed on the flange, and through holes are formed in the fixing blocks.

Preferably, a plurality of connecting rods are arranged outside the protective cover.

Preferably, threads are arranged at two ends of the connecting rod, and the two ends of the connecting rod respectively penetrate through the upper through hole and the lower through hole.

Preferably, the support ball portion is located within the outer groove of the bellows.

In the embodiment of the application, the outer wall of the corrugated pipe is supported by the supporting ball, so that force support is provided for the lower part of the corrugated pipe in a horizontal state, and the normal use of the corrugated pipe is ensured; an elastic piece is arranged in the protective cover, so that the support ball can give flexible force to the corrugated pipe part, and the expansion energy conservation is ensured to normally perform expansion or expansion and other movements; the bellows part is sealed through the protective cover, so that the attractiveness of the expansion joint is improved, and the bellows part in the expansion joint can be protected.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:

FIG. 1 is a schematic diagram of the overall embodiment construction;

fig. 2 is a schematic view for showing the internal structure of the protective cover.

Reference numerals: 1. a bellows; 2. a tetrafluoro liner; 3. a flange; 4. a protective cover; 5. a mounting block; 6. a spring groove; 7. a support ball; 8. a slide block; 9. a spring; 10. a fixed block; 12. and (5) connecting a rod.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, a tetrafluoro bellows expansion joint with long service life comprises a bellows 1, a tetrafluoro liner 2 arranged in the bellows 1, and flanges 3 arranged at two ends of the bellows 1, wherein a protective cover 4 is arranged outside the bellows 1, a mounting block 5 is fixed on the inner wall of the protective cover 4, a plurality of spring grooves 6 are formed in the mounting block 5, elastic pieces are arranged in the spring grooves 6, and one end, far away from the bottom of the spring grooves 6, of each elastic piece is fixedly provided with a supporting ball 7.

As shown in fig. 2, when in use, two ends of the flange 3 are connected with a pipeline through bolts, if the corrugated pipe 1 is in a vertical state at this moment, an elastic piece can give an acting force in a horizontal direction to the corrugated pipe 1, the elastic piece comprises a spring 9 arranged in the spring groove 6 and a sliding block 8 in sliding fit with the spring groove 6, the sliding block 8 is fixedly connected with the supporting ball 7, an initial state of the spring 9 is in a certain compression state, further compression and extension can be carried out in the state, the acting force given by the spring 9 is transmitted to the sliding block 8, and then is transmitted to the supporting ball 7 under the connection effect of the sliding block 8, part of the supporting ball 7 is positioned in an outer groove of the corrugated pipe 1, the surface of the supporting ball 7 is attached to the outer wall of the corrugated pipe 1, and under the elastic acting force of the spring 9, the supporting ball 7 can give an acting force to the surface of the corrugated pipe 1, so that the corrugated pipe 1 is in the vertical state is ensured, and the use state of the corrugated pipe 1 is ensured.

If the corrugated pipe 1 after installation is in the horizontality, the supporting ball 7 that is located the below will give the ascending holding power of corrugated pipe 1 surface, avoid corrugated pipe 1 position to appear sinking the phenomenon, guarantee that corrugated pipe 1 is in comparatively horizontality, expansion joint is in the time of stretching out and drawing back or expanding, corrugated pipe 1 can give supporting ball 7 a thrust, supporting ball 7 takes place the displacement, supporting ball 7 can give slider 8 a thrust, and then spring 9 compresses, can effectually guarantee the flexible and the inflation of corrugated pipe 1 through this setting.

Moreover, be provided with tetrafluoro inside lining 2 in the bellows 1, tetrafluoro inside lining 2 has good anticorrosion nature, can effectually improve expansion joint's life, and safety cover 4 adopts the rigid material, preferably adopts stainless steel, if bellows 1 appears damaging, can avoid the liquid to flow out through safety cover 4, plays emergent function of taking away danger.

As shown in fig. 1, a plurality of fixing blocks 10 are fixed on the flange 3, through holes are formed in the fixing blocks 10, a plurality of connecting rods 12 are arranged outside the protective cover 4, threads are arranged at two ends of each connecting rod 12, two ends of each connecting rod 12 penetrate through the upper through hole and the lower through hole respectively, the connecting rods 12 can be fixed on the fixing blocks 10 through nut and thread matching, the length of the current expansion joint can be limited through the connecting rods 12, and the installation suitability of the expansion joint is guaranteed.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a long service life's tetrafluoro bellows expansion joint, includes bellows (1), sets up in inside tetrafluoro inside lining (2) of bellows (1), sets up flange (3) at bellows (1) both ends, a serial communication port, the outside of bellows (1) is provided with safety cover (4), be fixed with installation piece (5) on the inner wall of safety cover (4), a plurality of spring grooves (6) have been seted up on installation piece (5), be provided with the elastic component in spring groove (6), just the one end that the spring component kept away from spring groove (6) bottom is fixed with supporting ball (7).

2. The expansion joint of the tetrafluoro corrugated pipe with long service life according to claim 1, wherein the elastic piece comprises a spring (9) arranged in a spring groove (6) and a sliding block (8) in sliding fit with the spring groove (6), and the sliding block (8) is fixedly connected with a supporting ball (7).

3. The expansion joint of the tetrafluoro corrugated pipe with long service life according to claim 1, wherein a plurality of fixing blocks (10) are fixed on the flange (3), and through holes are formed in the fixing blocks (10).

4. A tetrafluoro bellows expansion joint with long service life according to claim 3, characterized in that the outer part of the protective cover (4) is provided with a plurality of connecting rods (12).

5. The expansion joint of the tetrafluoro corrugated pipe with long service life according to claim 4, wherein both ends of the connecting rod (12) are provided with threads, and both ends of the connecting rod (12) pass through the upper through hole and the lower through hole respectively.

6. A tetrafluoro bellows expansion joint with long service life according to claim 1, characterized in that the support ball (7) is partly located in the outer groove of the bellows (1).